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/*
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* Copyright (C) 2008 Emweb bvba, Kessel-Lo, Belgium.
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*
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* See the LICENSE file for terms of use.
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*/
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#include <math.h>
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#include <cmath>
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#include <iostream>
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#include <boost/algorithm/string.hpp>
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#include "Wt/WAbstractItemModel.h"
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#include "Wt/WApplication.h"
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#include "Wt/WContainerWidget.h"
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#include "Wt/WEnvironment.h"
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#include "Wt/WItemDelegate.h"
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#include "Wt/WItemSelectionModel.h"
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#include "Wt/WStringStream.h"
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#include "Wt/WTemplate.h"
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#include "Wt/WText.h"
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#include "Wt/WTheme.h"
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#include "Wt/WTreeView.h"
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#include "Wt/WVBoxLayout.h"
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#include "Wt/WWebWidget.h"
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#include "WebUtils.h"
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#ifndef WT_DEBUG_JS
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#include "js/WTreeView.min.js"
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#endif
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#include <limits>
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#if defined(_MSC_VER) && (_MSC_VER < 1800)
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namespace {
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double round(double x)
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{
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return floor(x + 0.5);
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}
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}
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#endif
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/*
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TODO:
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nice to have:
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- stateless slot implementations
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- keyboard navigation ?
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*/
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#ifndef DOXYGEN_ONLY
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// Widest scrollbar found ? My Gnome Firefox has this
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#define SCROLLBAR_WIDTH 22
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#define UNKNOWN_VIEWPORT_HEIGHT 30
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namespace Wt {
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LOGGER("WTreeView");
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class ContentsContainer final : public WContainerWidget
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{
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public:
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ContentsContainer(WTreeView *treeView)
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: treeView_(treeView)
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{
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setLayoutSizeAware(true);
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}
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protected:
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virtual void layoutSizeChanged(int width, int height) override
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{
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treeView_->contentsSizeChanged(width, height);
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}
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private:
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WTreeView *treeView_;
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};
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class ToggleButtonConfig
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{
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public:
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ToggleButtonConfig(WWidget *parent, const std::string& styleClass)
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: styleClass_(styleClass)
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{
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toggleJS_.reset(new JSlot(parent));
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}
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void addState(const std::string& className) {
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states_.push_back(className);
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}
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void generate() {
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WApplication *app = WApplication::instance();
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std::stringstream js;
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js <<
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"function(s, e) {"
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"""var states = new Array(";
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for (unsigned i = 0; i < states_.size(); ++i) {
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if (i != 0)
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js << ',';
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js << '\'' << states_[i] << '\'';
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}
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js <<
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"""), i, il;"
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"""for (i=0; i<" << states_.size() << "; ++i) {"
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"" "if ($(s).hasClass(states[i])) {"
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"" << app->javaScriptClass() << ".emit(s, 't-'+states[i]);"
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"" "$(s).removeClass(states[i])"
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"" ".addClass(states[(i+1) % " << states_.size() << "]);"
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"" "break;"
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"" "}"
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"""}"
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"}";
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toggleJS_->setJavaScript(js.str());
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}
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const std::vector<std::string>& states() const { return states_; }
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const std::string& styleClass() const { return styleClass_; }
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private:
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std::vector<std::string> states_;
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std::unique_ptr<JSlot> toggleJS_;
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std::string styleClass_;
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friend class ToggleButton;
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};
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class ToggleButton : public Wt::WText
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{
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public:
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ToggleButton(ToggleButtonConfig *config)
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: config_(config)
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{
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setStyleClass(config_->styleClass());
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setInline(false);
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if (WApplication::instance()->environment().ajax()) {
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clicked().connect(*config_->toggleJS_);
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clicked().preventPropagation();
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for (unsigned i = 0; i < config_->states().size(); ++i)
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signals_.push_back(cpp14::make_unique<JSignal<>>(this, "t-" + config_->states()[i]));
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} else {
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clicked().connect(this, &ToggleButton::handleClick);
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for (unsigned i = 0; i < config_->states().size(); ++i)
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signals_.push_back(cpp14::make_unique<Signal<>>());
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}
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}
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SignalBase& signal(int i) { return *signals_[i]; }
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void setState(int i)
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{
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setStyleClass(config_->styleClass() + config_->states()[i]);
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}
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private:
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std::vector<std::unique_ptr<SignalBase>> signals_;
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ToggleButtonConfig *config_;
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void handleClick() {
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for (unsigned i = 0; i < config_->states().size(); ++i)
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if (boost::ends_with(styleClass().toUTF8(), config_->states()[i])) {
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(dynamic_cast<Signal<> *>(signals_[i].get()))->emit();
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break;
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}
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}
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};
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class RowSpacer final : public Wt::WWebWidget
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{
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public:
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RowSpacer(Wt::WTreeViewNode *node, int height)
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: node_(node),
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height_(0)
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{
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setHeight(0);
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setInline(false);
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setStyleClass("Wt-spacer");
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}
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void setRows(int height, bool force = false);
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int rows() const { return height_; }
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Wt::WTreeViewNode *node() const { return node_; }
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int renderedRow(int lowerBound = 0,
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int upperBound = std::numeric_limits<int>::max());
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protected:
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virtual Wt::DomElementType domElementType() const override
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{
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return Wt::DomElementType::DIV;
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}
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private:
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Wt::WTreeViewNode *node_;
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int height_;
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};
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class WTreeViewNode : public WContainerWidget
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{
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public:
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WTreeViewNode(WTreeView *view, const WModelIndex& index,
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int childrenHeight, bool isLast, WTreeViewNode *parent);
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~WTreeViewNode();
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void update(int firstColumn, int lastColumn);
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void updateGraphics(bool isLast, bool isEmpty);
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void insertColumns(int column, int count);
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void removeColumns(int column, int count);
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bool isLast() const;
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void rerenderSpacers();
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const WModelIndex& modelIndex() const { return index_; }
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int childrenHeight() const { return childrenHeight_; }
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int renderedHeight();
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bool childrenLoaded() const { return childrenLoaded_; }
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WWidget *widgetForModelRow(int row);
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WTreeViewNode *nextChildNode(WTreeViewNode *n);
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bool isAllSpacer();
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void setTopSpacerHeight(int rows);
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void addTopSpacerHeight(int rows);
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int topSpacerHeight();
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void setBottomSpacerHeight(int rows);
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void addBottomSpacerHeight(int rows);
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int bottomSpacerHeight();
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RowSpacer *topSpacer(bool create = false);
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RowSpacer *bottomSpacer(bool create = false);
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WContainerWidget *childContainer();
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void shiftModelIndexes(int start, int count);
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WTreeViewNode *parentNode() const { return parentNode_; }
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bool isExpanded();
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void adjustChildrenHeight(int diff);
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void normalizeSpacers();
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void selfCheck();
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WTreeView *view() const { return view_; }
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int renderedRow(int lowerBound = 0,
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int upperBound = std::numeric_limits<int>::max());
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int renderedRow(WTreeViewNode *node,
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int lowerBound = 0,
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int upperBound = std::numeric_limits<int>::max());
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void renderSelected(bool selected, int column);
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void doExpand();
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void doCollapse();
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WWidget *cellWidget(int column);
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private:
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WTreeView *view_;
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WTemplate *nodeWidget_;
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WContainerWidget *childContainer_;
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WModelIndex index_;
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int childrenHeight_;
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WTreeViewNode *parentNode_;
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bool childrenLoaded_;
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void loadChildren();
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281
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WModelIndex childIndex(int column);
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283
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void setCellWidget(int column, std::unique_ptr<WWidget> w);
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void addColumnStyleClass(int column, WWidget *w);
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};
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287
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void RowSpacer::setRows(int height, bool force)
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{
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289
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if (height < 0) {
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LOG_ERROR("RowSpacer::setRows() with heigth " << height);
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height = 0;
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}
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if (height == 0)
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removeFromParent();
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else
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297
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if (force || height != height_) {
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298
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height_ = height;
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299
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setHeight(node_->view()->rowHeight() * height);
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}
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301
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}
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303
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int RowSpacer::renderedRow(int lowerBound, int upperBound)
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{
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Wt::WTreeViewNode *n = node();
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306
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307
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int result = 0;
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if (this == n->bottomSpacer())
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result = n->childrenHeight() - n->bottomSpacerHeight();
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311
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if (result > upperBound)
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return result;
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else
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return result
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+ n->renderedRow(lowerBound - result, upperBound - result);
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}
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318
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WTreeViewNode::WTreeViewNode(WTreeView *view, const WModelIndex& index,
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319
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int childrenHeight, bool isLast,
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WTreeViewNode *parent)
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: view_(view),
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nodeWidget_(nullptr),
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childContainer_(nullptr),
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index_(index),
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childrenHeight_(childrenHeight),
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parentNode_(parent),
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childrenLoaded_(false)
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328
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{
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329
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nodeWidget_ = addWidget(cpp14::make_unique<WTemplate>
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(tr("Wt.WTreeViewNode.template")));
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331
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nodeWidget_->setStyleClass("Wt-item");
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332
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nodeWidget_->bindEmpty("cols-row");
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333
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nodeWidget_->bindEmpty("expand");
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334
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nodeWidget_->bindEmpty("no-expand");
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335
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nodeWidget_->bindEmpty("col0");
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336
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337
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// TF: Although it seems, that this ctor never gets called with childrenheight == -1
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338
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// for non-root nodes, the variable 'selfheight' does not make any sense here,
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339
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// if not properly initialized *before* its one and only usage below...
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340
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int selfHeight = index == view_->rootIndex() ? 0 : 1;
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341
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// int selfHeight = 0;
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342
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bool needLoad = view_->isExpanded(index_);
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343
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344
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if (index_ != view_->rootIndex() && !needLoad)
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345
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childContainer()->hide();
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346
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347
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if (needLoad) {
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348
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childrenLoaded_ = true;
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349
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if (childrenHeight_ == -1)
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350
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childrenHeight_ = view_->subTreeHeight(index_) - selfHeight;
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351
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352
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if (childrenHeight_ > 0)
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353
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setTopSpacerHeight(childrenHeight_);
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354
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} else
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355
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childrenHeight_ = 0;
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356
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357
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if (index_ != view_->rootIndex()) {
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358
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updateGraphics(isLast, !view_->model()->hasChildren(index_));
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359
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insertColumns(0, view_->columnCount());
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360
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361
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// TF: Too late for initialization. Variable never referenced again...
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362
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// selfHeight = 1;
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363
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364
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if (view_->selectionBehavior() == SelectionBehavior::Rows &&
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365
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view_->isSelected(index_))
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366
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renderSelected(true, 0);
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367
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}
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368
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369
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view_->addRenderedNode(this);
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370
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}
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371
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372
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WTreeViewNode::~WTreeViewNode()
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373
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{
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374
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view_->removeRenderedNode(this);
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375
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376
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if (view_->isEditing()) {
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377
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WModelIndex parent = index_.parent();
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378
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379
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int thisNodeCount = view_->model()->columnCount(parent);
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380
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381
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for (int i = 0; i < thisNodeCount; ++i) {
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382
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WModelIndex child = childIndex(i);
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383
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view_->persistEditor(child);
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384
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}
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385
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}
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386
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}
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387
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388
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void WTreeViewNode::update(int firstColumn, int lastColumn)
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|
389
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{
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390
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WModelIndex parent = index_.parent();
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391
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392
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int thisNodeCount = view_->model()->columnCount(parent);
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393
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394
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for (int i = firstColumn; i <= lastColumn; ++i) {
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395
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WModelIndex child = i < thisNodeCount ? childIndex(i) : WModelIndex();
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396
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397
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WWidget *w = cellWidget(i);
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398
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|
399
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WFlags<ViewItemRenderFlag> renderFlags = None;
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|
400
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if (view_->selectionBehavior() == SelectionBehavior::Items &&
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|
401
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view_->isSelected(child))
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402
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renderFlags |= ViewItemRenderFlag::Selected;
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|
403
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|
|
404
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if (view_->isEditing(child)) {
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|
405
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renderFlags |= ViewItemRenderFlag::Editing;
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|
406
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if (view_->hasEditFocus(child))
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407
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renderFlags |= ViewItemRenderFlag::Focused;
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|
408
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}
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|
409
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410
|
if (!view_->isValid(child)) {
|
|
411
|
renderFlags |= ViewItemRenderFlag::Invalid;
|
|
412
|
}
|
|
413
|
|
|
414
|
std::unique_ptr<WWidget> wAfter = view_->itemDelegate(i)->update(w, child, renderFlags);
|
|
415
|
if (wAfter)
|
|
416
|
w = wAfter.get();
|
|
417
|
|
|
418
|
if (renderFlags.test(ViewItemRenderFlag::Editing))
|
|
419
|
view_->setEditorWidget(child, w);
|
|
420
|
|
|
421
|
if (wAfter) {
|
|
422
|
setCellWidget(i, std::move(wAfter));
|
|
423
|
|
|
424
|
/*
|
|
425
|
* If we are creating a new editor, then reset its current edit
|
|
426
|
* state.
|
|
427
|
*/
|
|
428
|
if (renderFlags.test(ViewItemRenderFlag::Editing)) {
|
|
429
|
cpp17::any state = view_->editState(child);
|
|
430
|
if (cpp17::any_has_value(state))
|
|
431
|
view_->itemDelegate(i)->setEditState(w, child, state);
|
|
432
|
}
|
|
433
|
} else
|
|
434
|
addColumnStyleClass(i, w);
|
|
435
|
}
|
|
436
|
}
|
|
437
|
|
|
438
|
void WTreeViewNode::updateGraphics(bool isLast, bool isEmpty)
|
|
439
|
{
|
|
440
|
if (index_ == view_->rootIndex())
|
|
441
|
return;
|
|
442
|
|
|
443
|
if (index_.parent() == view_->rootIndex() && !view_->rootIsDecorated()) {
|
|
444
|
nodeWidget_->bindEmpty("expand");
|
|
445
|
nodeWidget_->bindEmpty("no-expand");
|
|
446
|
return;
|
|
447
|
}
|
|
448
|
|
|
449
|
if (!isEmpty) {
|
|
450
|
ToggleButton *expandButton = nodeWidget_->resolve<ToggleButton *>("expand");
|
|
451
|
if (!expandButton) {
|
|
452
|
nodeWidget_->bindEmpty("no-expand");
|
|
453
|
expandButton =
|
|
454
|
nodeWidget_->bindWidget
|
|
455
|
("expand", cpp14::make_unique<ToggleButton>(view_->expandConfig_.get()));
|
|
456
|
|
|
457
|
if (WApplication::instance()->environment().agentIsIE())
|
|
458
|
expandButton->setWidth(19);
|
|
459
|
|
|
460
|
expandButton->signal(0).connect(this, &WTreeViewNode::doExpand);
|
|
461
|
expandButton->signal(1).connect(this, &WTreeViewNode::doCollapse);
|
|
462
|
|
|
463
|
expandButton->setState(isExpanded() ? 1 : 0);
|
|
464
|
}
|
|
465
|
} else {
|
|
466
|
WText *noExpandIcon = nodeWidget_->resolve<WText *>("no-expand");
|
|
467
|
if (!noExpandIcon) {
|
|
468
|
noExpandIcon
|
|
469
|
= nodeWidget_->bindWidget("no-expand", cpp14::make_unique<WText>());
|
|
470
|
noExpandIcon->setInline(false);
|
|
471
|
noExpandIcon->setStyleClass("Wt-ctrl rh noexpand");
|
|
472
|
if (WApplication::instance()->environment().agentIsIE())
|
|
473
|
noExpandIcon->setWidth(19);
|
|
474
|
}
|
|
475
|
}
|
|
476
|
|
|
477
|
toggleStyleClass("Wt-trunk", !isLast);
|
|
478
|
nodeWidget_->toggleStyleClass("Wt-end", isLast);
|
|
479
|
nodeWidget_->toggleStyleClass("Wt-trunk", !isLast);
|
|
480
|
}
|
|
481
|
|
|
482
|
void WTreeViewNode::insertColumns(int column, int count)
|
|
483
|
{
|
|
484
|
WContainerWidget *row = nodeWidget_->resolve<WContainerWidget *>("cols-row");
|
|
485
|
|
|
486
|
if (view_->columnCount() > 1) {
|
|
487
|
if (!row) {
|
|
488
|
std::unique_ptr<WContainerWidget> newRow(new WContainerWidget());
|
|
489
|
|
|
490
|
if (view_->rowHeaderCount()) {
|
|
491
|
newRow->setStyleClass("Wt-tv-rowc rh");
|
|
492
|
std::unique_ptr<WContainerWidget> rowWrap(new WContainerWidget());
|
|
493
|
rowWrap->addWidget(std::move(newRow));
|
|
494
|
newRow = std::move(rowWrap);
|
|
495
|
}
|
|
496
|
|
|
497
|
newRow->setStyleClass("Wt-tv-row rh");
|
|
498
|
|
|
499
|
nodeWidget_->bindWidget("cols-row", std::move(newRow));
|
|
500
|
}
|
|
501
|
} else
|
|
502
|
if (row)
|
|
503
|
row->removeFromParent();
|
|
504
|
|
|
505
|
update(0, view_->columnCount() - 1);
|
|
506
|
}
|
|
507
|
|
|
508
|
void WTreeViewNode::removeColumns(int column, int count)
|
|
509
|
{
|
|
510
|
insertColumns(0, 0);
|
|
511
|
}
|
|
512
|
|
|
513
|
bool WTreeViewNode::isLast() const
|
|
514
|
{
|
|
515
|
return index_ == view_->rootIndex()
|
|
516
|
|| (index_.row() == view_->model()->rowCount(index_.parent()) - 1);
|
|
517
|
}
|
|
518
|
|
|
519
|
WModelIndex WTreeViewNode::childIndex(int column)
|
|
520
|
{
|
|
521
|
return view_->model()->index(index_.row(), column, index_.parent());
|
|
522
|
}
|
|
523
|
|
|
524
|
void WTreeViewNode::addColumnStyleClass(int column, WWidget *w)
|
|
525
|
{
|
|
526
|
WStringStream s;
|
|
527
|
|
|
528
|
s << view_->columnStyleClass(column) << " Wt-tv-c rh "
|
|
529
|
<< w->styleClass().toUTF8();
|
|
530
|
|
|
531
|
w->setStyleClass(WString::fromUTF8(s.c_str()));
|
|
532
|
}
|
|
533
|
|
|
534
|
void WTreeViewNode::setCellWidget(int column, std::unique_ptr<WWidget> newW)
|
|
535
|
{
|
|
536
|
WWidget *current = cellWidget(column);
|
|
537
|
|
|
538
|
addColumnStyleClass(column, newW.get());
|
|
539
|
|
|
540
|
if (current)
|
|
541
|
current->setStyleClass(WString::Empty);
|
|
542
|
|
|
543
|
if (!WApplication::instance()->environment().ajax()) {
|
|
544
|
WInteractWidget *wi = dynamic_cast<WInteractWidget *>(newW.get());
|
|
545
|
if (wi)
|
|
546
|
wi->clicked().connect
|
|
547
|
(view_, std::bind(&WTreeView::handleClick, view_, childIndex(column),
|
|
548
|
std::placeholders::_1));
|
|
549
|
}
|
|
550
|
|
|
551
|
if (column == 0) {
|
|
552
|
newW->setInline(false);
|
|
553
|
nodeWidget_->bindWidget("col0", std::move(newW));
|
|
554
|
} else {
|
|
555
|
WContainerWidget *row
|
|
556
|
= nodeWidget_->resolve<WContainerWidget *>("cols-row");
|
|
557
|
if (view_->rowHeaderCount())
|
|
558
|
row = dynamic_cast<WContainerWidget *>(row->widget(0));
|
|
559
|
|
|
560
|
if (current)
|
|
561
|
current->removeFromParent();
|
|
562
|
|
|
563
|
row->insertWidget(column - 1, std::move(newW));
|
|
564
|
}
|
|
565
|
}
|
|
566
|
|
|
567
|
WWidget *WTreeViewNode::cellWidget(int column)
|
|
568
|
{
|
|
569
|
if (column == 0)
|
|
570
|
return nodeWidget_->resolveWidget("col0");
|
|
571
|
else {
|
|
572
|
WContainerWidget *row
|
|
573
|
= nodeWidget_->resolve<WContainerWidget *>("cols-row");
|
|
574
|
|
|
575
|
if (view_->rowHeaderCount())
|
|
576
|
row = dynamic_cast<WContainerWidget *>(row->widget(0));
|
|
577
|
|
|
578
|
return row->count() >= column ? row->widget(column - 1) : nullptr;
|
|
579
|
}
|
|
580
|
}
|
|
581
|
|
|
582
|
void WTreeViewNode::doExpand()
|
|
583
|
{
|
|
584
|
if (isExpanded())
|
|
585
|
return;
|
|
586
|
|
|
587
|
loadChildren();
|
|
588
|
|
|
589
|
ToggleButton *expandButton = nodeWidget_->resolve<ToggleButton *>("expand");
|
|
590
|
if (expandButton)
|
|
591
|
expandButton->setState(1);
|
|
592
|
|
|
593
|
view_->expandedSet_.insert(index_);
|
|
594
|
|
|
595
|
childContainer()->show();
|
|
596
|
|
|
597
|
if (parentNode())
|
|
598
|
parentNode()->adjustChildrenHeight(childrenHeight_);
|
|
599
|
|
|
600
|
view_->adjustRenderedNode(this, renderedRow());
|
|
601
|
view_->scheduleRerender(WTreeView::RenderState::NeedAdjustViewPort);
|
|
602
|
|
|
603
|
view_->expanded_.emit(index_);
|
|
604
|
}
|
|
605
|
|
|
606
|
void WTreeViewNode::doCollapse()
|
|
607
|
{
|
|
608
|
if (!isExpanded())
|
|
609
|
return;
|
|
610
|
|
|
611
|
ToggleButton *expandButton = nodeWidget_->resolve<ToggleButton *>("expand");
|
|
612
|
if (expandButton)
|
|
613
|
expandButton->setState(0);
|
|
614
|
|
|
615
|
view_->setCollapsed(index_);
|
|
616
|
|
|
617
|
childContainer()->hide();
|
|
618
|
|
|
619
|
if (parentNode())
|
|
620
|
parentNode()->adjustChildrenHeight(-childrenHeight_);
|
|
621
|
|
|
622
|
view_->renderedRowsChanged(renderedRow(), -childrenHeight_);
|
|
623
|
|
|
624
|
view_->collapsed_.emit(index_);
|
|
625
|
}
|
|
626
|
|
|
627
|
bool WTreeViewNode::isExpanded()
|
|
628
|
{
|
|
629
|
return index_ == view_->rootIndex() || !childContainer()->isHidden();
|
|
630
|
}
|
|
631
|
|
|
632
|
void WTreeViewNode::normalizeSpacers()
|
|
633
|
{
|
|
634
|
if (childrenLoaded_ && childContainer()->count() == 2) {
|
|
635
|
RowSpacer *top = topSpacer();
|
|
636
|
RowSpacer *bottom = bottomSpacer();
|
|
637
|
|
|
638
|
if (top && bottom && top != bottom) {
|
|
639
|
top->setRows(top->rows() + bottom->rows());
|
|
640
|
if (bottom)
|
|
641
|
bottom->removeFromParent();
|
|
642
|
}
|
|
643
|
}
|
|
644
|
}
|
|
645
|
|
|
646
|
void WTreeViewNode::rerenderSpacers()
|
|
647
|
{
|
|
648
|
RowSpacer *s = topSpacer();
|
|
649
|
if (s)
|
|
650
|
s->setRows(topSpacerHeight(), true);
|
|
651
|
|
|
652
|
s = bottomSpacer();
|
|
653
|
if (s)
|
|
654
|
s->setRows(bottomSpacerHeight(), true);
|
|
655
|
}
|
|
656
|
|
|
657
|
bool WTreeViewNode::isAllSpacer()
|
|
658
|
{
|
|
659
|
return childrenLoaded_ && topSpacer() && (topSpacer() == bottomSpacer());
|
|
660
|
}
|
|
661
|
|
|
662
|
void WTreeViewNode::loadChildren()
|
|
663
|
{
|
|
664
|
if (!childrenLoaded_) {
|
|
665
|
childrenLoaded_ = true;
|
|
666
|
|
|
667
|
view_->expandedSet_.insert(index_);
|
|
668
|
childrenHeight_ = view_->subTreeHeight(index_) - 1;
|
|
669
|
view_->expandedSet_.erase(index_);
|
|
670
|
|
|
671
|
if (childrenHeight_ > 0)
|
|
672
|
setTopSpacerHeight(childrenHeight_);
|
|
673
|
}
|
|
674
|
}
|
|
675
|
|
|
676
|
void WTreeViewNode::adjustChildrenHeight(int diff)
|
|
677
|
{
|
|
678
|
childrenHeight_ += diff;
|
|
679
|
|
|
680
|
if (isExpanded()) {
|
|
681
|
WTreeViewNode *parent = parentNode();
|
|
682
|
|
|
683
|
if (parent)
|
|
684
|
parent->adjustChildrenHeight(diff);
|
|
685
|
else
|
|
686
|
view_->pageChanged().emit();
|
|
687
|
}
|
|
688
|
}
|
|
689
|
|
|
690
|
WContainerWidget *WTreeViewNode::childContainer()
|
|
691
|
{
|
|
692
|
if (!childContainer_) {
|
|
693
|
childContainer_ = addWidget(cpp14::make_unique<WContainerWidget>());
|
|
694
|
childContainer_->setList(true);
|
|
695
|
|
|
696
|
if (index_ == view_->rootIndex())
|
|
697
|
childContainer_->addStyleClass("Wt-tv-root");
|
|
698
|
}
|
|
699
|
|
|
700
|
return childContainer_;
|
|
701
|
}
|
|
702
|
|
|
703
|
WWidget *WTreeViewNode::widgetForModelRow(int modelRow)
|
|
704
|
{
|
|
705
|
if (!childrenLoaded_)
|
|
706
|
return nullptr;
|
|
707
|
|
|
708
|
WContainerWidget *c = childContainer();
|
|
709
|
|
|
710
|
int first = topSpacer() ? 1 : 0;
|
|
711
|
|
|
712
|
if (first < c->count()) {
|
|
713
|
WTreeViewNode *n = dynamic_cast<WTreeViewNode *>(c->widget(first));
|
|
714
|
if (n) {
|
|
715
|
int row = topSpacerHeight();
|
|
716
|
int index = first + (modelRow - row);
|
|
717
|
|
|
718
|
if (index < first)
|
|
719
|
return topSpacer();
|
|
720
|
else if (index < c->count())
|
|
721
|
return c->widget(index);
|
|
722
|
else
|
|
723
|
return bottomSpacer();
|
|
724
|
} else
|
|
725
|
return bottomSpacer();
|
|
726
|
} else // isAllSpacer()
|
|
727
|
return topSpacer();
|
|
728
|
}
|
|
729
|
|
|
730
|
void WTreeViewNode::shiftModelIndexes(int start, int offset)
|
|
731
|
{
|
|
732
|
if (!childrenLoaded_)
|
|
733
|
return;
|
|
734
|
|
|
735
|
WContainerWidget *c = childContainer();
|
|
736
|
|
|
737
|
int first, end, inc;
|
|
738
|
|
|
739
|
if (offset > 0) {
|
|
740
|
first = c->count() - 1;
|
|
741
|
end = -1;
|
|
742
|
inc = -1;
|
|
743
|
} else {
|
|
744
|
first = 0;
|
|
745
|
end = c->count();
|
|
746
|
inc = 1;
|
|
747
|
}
|
|
748
|
|
|
749
|
for (int i = first; i != end; i += inc) {
|
|
750
|
WTreeViewNode *n = dynamic_cast<WTreeViewNode *>(c->widget(i));
|
|
751
|
|
|
752
|
if (n && n->modelIndex().row() >= start) {
|
|
753
|
view_->removeRenderedNode(n);
|
|
754
|
|
|
755
|
n->index_ = view_->model()->index(n->modelIndex().row() + offset,
|
|
756
|
n->modelIndex().column(), index_);
|
|
757
|
|
|
758
|
// update items through delegate
|
|
759
|
int lastColumn = view_->columnCount() - 1;
|
|
760
|
int thisNodeCount = view_->model()->columnCount(index_);
|
|
761
|
|
|
762
|
for (int j = 0; j <= lastColumn; ++j) {
|
|
763
|
WModelIndex child = j < thisNodeCount
|
|
764
|
? n->childIndex(j) : WModelIndex();
|
|
765
|
view_->itemDelegate(j)->updateModelIndex(n->cellWidget(j), child);
|
|
766
|
}
|
|
767
|
|
|
768
|
view_->addRenderedNode(n);
|
|
769
|
}
|
|
770
|
}
|
|
771
|
}
|
|
772
|
|
|
773
|
int WTreeViewNode::renderedHeight()
|
|
774
|
{
|
|
775
|
return index_ == view_->rootIndex() ? childrenHeight_ :
|
|
776
|
(1 + (isExpanded() ? childrenHeight_ : 0));
|
|
777
|
}
|
|
778
|
|
|
779
|
int WTreeViewNode::topSpacerHeight()
|
|
780
|
{
|
|
781
|
RowSpacer *s = topSpacer();
|
|
782
|
|
|
783
|
return s ? s->rows() : 0;
|
|
784
|
}
|
|
785
|
|
|
786
|
void WTreeViewNode::setTopSpacerHeight(int rows)
|
|
787
|
{
|
|
788
|
if (rows == 0){
|
|
789
|
childContainer()->removeWidget(topSpacer());
|
|
790
|
}
|
|
791
|
else
|
|
792
|
topSpacer(true)->setRows(rows);
|
|
793
|
}
|
|
794
|
|
|
795
|
void WTreeViewNode::addTopSpacerHeight(int rows)
|
|
796
|
{
|
|
797
|
setTopSpacerHeight(topSpacerHeight() + rows);
|
|
798
|
}
|
|
799
|
|
|
800
|
RowSpacer *WTreeViewNode::topSpacer(bool create)
|
|
801
|
{
|
|
802
|
WContainerWidget *c = childContainer();
|
|
803
|
|
|
804
|
RowSpacer *result = nullptr;
|
|
805
|
if (c->count() == 0 || !(result = dynamic_cast<RowSpacer *>(c->widget(0)))) {
|
|
806
|
if (!create)
|
|
807
|
return nullptr;
|
|
808
|
else {
|
|
809
|
result = new RowSpacer(this, 0);
|
|
810
|
c->insertWidget(0, std::unique_ptr<WWidget>(result));
|
|
811
|
}
|
|
812
|
}
|
|
813
|
|
|
814
|
return result;
|
|
815
|
}
|
|
816
|
|
|
817
|
int WTreeViewNode::bottomSpacerHeight()
|
|
818
|
{
|
|
819
|
RowSpacer *s = bottomSpacer();
|
|
820
|
|
|
821
|
return s ? s->rows() : 0;
|
|
822
|
}
|
|
823
|
|
|
824
|
void WTreeViewNode::setBottomSpacerHeight(int rows)
|
|
825
|
{
|
|
826
|
if (!rows) {
|
|
827
|
auto bottom = bottomSpacer();
|
|
828
|
if (bottom)
|
|
829
|
bottom->removeFromParent();
|
|
830
|
} else
|
|
831
|
bottomSpacer(true)->setRows(rows);
|
|
832
|
}
|
|
833
|
|
|
834
|
void WTreeViewNode::addBottomSpacerHeight(int rows)
|
|
835
|
{
|
|
836
|
setBottomSpacerHeight(bottomSpacerHeight() + rows);
|
|
837
|
}
|
|
838
|
|
|
839
|
RowSpacer *WTreeViewNode::bottomSpacer(bool create)
|
|
840
|
{
|
|
841
|
WContainerWidget *c = childContainer();
|
|
842
|
|
|
843
|
RowSpacer *result = nullptr;
|
|
844
|
if (c->count() == 0
|
|
845
|
|| !(result = dynamic_cast<RowSpacer *>(c->widget(c->count() - 1)))) {
|
|
846
|
if (!create)
|
|
847
|
return nullptr;
|
|
848
|
else {
|
|
849
|
result = c->addWidget(cpp14::make_unique<RowSpacer>(this, 0));
|
|
850
|
}
|
|
851
|
}
|
|
852
|
|
|
853
|
return result;
|
|
854
|
}
|
|
855
|
|
|
856
|
WTreeViewNode *WTreeViewNode::nextChildNode(WTreeViewNode *prev)
|
|
857
|
{
|
|
858
|
if (!childrenLoaded_)
|
|
859
|
return nullptr;
|
|
860
|
|
|
861
|
WContainerWidget *c = childContainer();
|
|
862
|
|
|
863
|
int nextI = prev ? c->indexOf(prev) + 1 : topSpacer() ? 1 : 0;
|
|
864
|
|
|
865
|
if (nextI < c->count())
|
|
866
|
return dynamic_cast<WTreeViewNode *>(c->widget(nextI));
|
|
867
|
else
|
|
868
|
return nullptr;
|
|
869
|
}
|
|
870
|
|
|
871
|
int WTreeViewNode::renderedRow(int lowerBound, int upperBound)
|
|
872
|
{
|
|
873
|
if (!parentNode_)
|
|
874
|
return 0;
|
|
875
|
else {
|
|
876
|
int result = parentNode_->renderedRow(0, upperBound);
|
|
877
|
|
|
878
|
if (result > upperBound)
|
|
879
|
return result;
|
|
880
|
|
|
881
|
return result
|
|
882
|
+ parentNode_->renderedRow(this, lowerBound - result,
|
|
883
|
upperBound - result);
|
|
884
|
}
|
|
885
|
}
|
|
886
|
|
|
887
|
int WTreeViewNode::renderedRow(WTreeViewNode *node,
|
|
888
|
int lowerBound, int upperBound)
|
|
889
|
{
|
|
890
|
if (renderedHeight() < lowerBound)
|
|
891
|
return renderedHeight();
|
|
892
|
|
|
893
|
int result = topSpacerHeight();
|
|
894
|
|
|
895
|
if (result > upperBound)
|
|
896
|
return result;
|
|
897
|
|
|
898
|
for (WTreeViewNode *c = nextChildNode(nullptr); c; c = nextChildNode(c)) {
|
|
899
|
if (c == node)
|
|
900
|
return result;
|
|
901
|
else {
|
|
902
|
result += c->renderedHeight();
|
|
903
|
if (result > upperBound)
|
|
904
|
return result;
|
|
905
|
}
|
|
906
|
}
|
|
907
|
|
|
908
|
assert(false);
|
|
909
|
return 0;
|
|
910
|
}
|
|
911
|
|
|
912
|
void WTreeViewNode::renderSelected(bool selected, int column)
|
|
913
|
{
|
|
914
|
std::string cl = WApplication::instance()->theme()->activeClass();
|
|
915
|
|
|
916
|
if (view_->selectionBehavior() == SelectionBehavior::Rows) {
|
|
917
|
nodeWidget_->toggleStyleClass(cl, selected);
|
|
918
|
} else {
|
|
919
|
WWidget *w = cellWidget(column);
|
|
920
|
w->toggleStyleClass(cl, selected);
|
|
921
|
}
|
|
922
|
}
|
|
923
|
|
|
924
|
void WTreeViewNode::selfCheck()
|
|
925
|
{
|
|
926
|
assert(renderedHeight() == view_->subTreeHeight(index_));
|
|
927
|
|
|
928
|
int childNodesHeight = 0;
|
|
929
|
for (WTreeViewNode *c = nextChildNode(nullptr); c; c = nextChildNode(c)) {
|
|
930
|
c->selfCheck();
|
|
931
|
childNodesHeight += c->renderedHeight();
|
|
932
|
}
|
|
933
|
|
|
934
|
if (childNodesHeight == 0) {
|
|
935
|
assert(topSpacer() == bottomSpacer());
|
|
936
|
assert(topSpacerHeight() == childrenHeight());
|
|
937
|
} else {
|
|
938
|
assert(topSpacerHeight() + childNodesHeight + bottomSpacerHeight()
|
|
939
|
== childrenHeight());
|
|
940
|
}
|
|
941
|
}
|
|
942
|
|
|
943
|
WTreeView::WTreeView()
|
|
944
|
: skipNextMouseEvent_(false),
|
|
945
|
renderedNodesAdded_(false),
|
|
946
|
rootNode_(nullptr),
|
|
947
|
rowHeightRule_(nullptr),
|
|
948
|
rowWidthRule_(nullptr),
|
|
949
|
rowContentsWidthRule_(nullptr),
|
|
950
|
c0StyleRule_(nullptr),
|
|
951
|
rootIsDecorated_(true),
|
|
952
|
viewportTop_(0),
|
|
953
|
viewportHeight_(UNKNOWN_VIEWPORT_HEIGHT),
|
|
954
|
firstRenderedRow_(0),
|
|
955
|
validRowCount_(0),
|
|
956
|
nodeLoad_(0),
|
|
957
|
headerContainer_(nullptr),
|
|
958
|
contentsContainer_(nullptr),
|
|
959
|
scrollBarC_(nullptr),
|
|
960
|
firstRemovedRow_(0),
|
|
961
|
removedHeight_(0),
|
|
962
|
itemEvent_(impl_, "itemEvent"),
|
|
963
|
itemTouchEvent_(impl_, "itemTouchEvent")
|
|
964
|
{
|
|
965
|
setSelectable(false);
|
|
966
|
|
|
967
|
expandConfig_.reset(new ToggleButtonConfig(this, "Wt-ctrl rh "));
|
|
968
|
expandConfig_->addState("expand");
|
|
969
|
expandConfig_->addState("collapse");
|
|
970
|
expandConfig_->generate();
|
|
971
|
|
|
972
|
setStyleClass("Wt-itemview Wt-treeview");
|
|
973
|
|
|
974
|
const char *CSS_RULES_NAME = "Wt::WTreeView";
|
|
975
|
|
|
976
|
WApplication *app = WApplication::instance();
|
|
977
|
|
|
978
|
if (app->environment().agentIsWebKit() || app->environment().agentIsOpera())
|
|
979
|
if (!app->styleSheet().isDefined(CSS_RULES_NAME))
|
|
980
|
/* bottom scrollbar */
|
|
981
|
addCssRule
|
|
982
|
(".Wt-treeview .Wt-tv-rowc", "position: relative;", CSS_RULES_NAME);
|
|
983
|
|
|
984
|
setup();
|
|
985
|
}
|
|
986
|
|
|
987
|
void WTreeView::setup()
|
|
988
|
{
|
|
989
|
WApplication *app = WApplication::instance();
|
|
990
|
|
|
991
|
impl_->clear();
|
|
992
|
|
|
993
|
rootNode_ = nullptr;
|
|
994
|
|
|
995
|
/*
|
|
996
|
* Setup main layout
|
|
997
|
*/
|
|
998
|
headers_ = new WContainerWidget();
|
|
999
|
headers_->setStyleClass("Wt-headerdiv headerrh");
|
|
1000
|
|
|
1001
|
contents_ = new WContainerWidget();
|
|
1002
|
WContainerWidget *wrapRoot
|
|
1003
|
= contents_->addWidget(cpp14::make_unique<WContainerWidget>());
|
|
1004
|
|
|
1005
|
if (app->environment().agentIsIE()) {
|
|
1006
|
wrapRoot->setAttributeValue("style", "zoom: 1");
|
|
1007
|
contents_->setAttributeValue("style", "zoom: 1");
|
|
1008
|
}
|
|
1009
|
|
|
1010
|
if (app->environment().ajax()) {
|
|
1011
|
impl_->setPositionScheme(PositionScheme::Relative);
|
|
1012
|
|
|
1013
|
std::unique_ptr<WVBoxLayout> layout(new WVBoxLayout());
|
|
1014
|
layout->setSpacing(0);
|
|
1015
|
layout->setContentsMargins(0, 0, 0, 0);
|
|
1016
|
|
|
1017
|
headerContainer_ = new WContainerWidget();
|
|
1018
|
headerContainer_->setOverflow(Overflow::Hidden);
|
|
1019
|
headerContainer_->setStyleClass("Wt-header headerrh cwidth");
|
|
1020
|
headerContainer_->addWidget(std::unique_ptr<WWidget>(headers_));
|
|
1021
|
|
|
1022
|
contentsContainer_ = new ContentsContainer(this);
|
|
1023
|
contentsContainer_->setStyleClass("cwidth");
|
|
1024
|
contentsContainer_->setOverflow(Overflow::Auto);
|
|
1025
|
contentsContainer_->scrolled().connect(this, &WTreeView::onViewportChange);
|
|
1026
|
contentsContainer_->addWidget(std::unique_ptr<WWidget>(contents_));
|
|
1027
|
|
|
1028
|
layout->addWidget(std::unique_ptr<WWidget>(headerContainer_));
|
|
1029
|
layout->addWidget(std::unique_ptr<WWidget>(contentsContainer_), 1);
|
|
1030
|
|
|
1031
|
impl_->setLayout(std::move(layout));
|
|
1032
|
} else {
|
|
1033
|
contentsContainer_ = new WContainerWidget();
|
|
1034
|
contentsContainer_->addWidget(std::unique_ptr<WWidget>(contents_));
|
|
1035
|
contentsContainer_->setOverflow(Overflow::Hidden);
|
|
1036
|
|
|
1037
|
impl_->setPositionScheme(PositionScheme::Relative);
|
|
1038
|
contentsContainer_->setPositionScheme(PositionScheme::Relative);
|
|
1039
|
contents_->setPositionScheme(PositionScheme::Relative);
|
|
1040
|
|
|
1041
|
impl_->addWidget(std::unique_ptr<WWidget>(headers_));
|
|
1042
|
impl_->addWidget(std::unique_ptr<WWidget>(contentsContainer_));
|
|
1043
|
|
|
1044
|
viewportHeight_ = 1000;
|
|
1045
|
|
|
1046
|
resize(width(), height());
|
|
1047
|
}
|
|
1048
|
|
|
1049
|
setRowHeight(rowHeight());
|
|
1050
|
}
|
|
1051
|
|
|
1052
|
void WTreeView::defineJavaScript()
|
|
1053
|
{
|
|
1054
|
WApplication *app = WApplication::instance();
|
|
1055
|
|
|
1056
|
if (!app->environment().ajax())
|
|
1057
|
return;
|
|
1058
|
|
|
1059
|
LOAD_JAVASCRIPT(app, "js/WTreeView.js", "WTreeView", wtjs1);
|
|
1060
|
|
|
1061
|
setJavaScriptMember(" WTreeView", "new " WT_CLASS ".WTreeView("
|
|
1062
|
+ app->javaScriptClass() + "," + jsRef() + ","
|
|
1063
|
+ contentsContainer_->jsRef() + ","
|
|
1064
|
+ headerContainer_->jsRef() + ","
|
|
1065
|
+ std::to_string(rowHeaderCount())+ ",'"
|
|
1066
|
+ WApplication::instance()->theme()->activeClass()
|
|
1067
|
+ "');");
|
|
1068
|
|
|
1069
|
setJavaScriptMember(WT_RESIZE_JS,
|
|
1070
|
"function(self,w,h) {"
|
|
1071
|
"$(self).data('obj').wtResize();"
|
|
1072
|
"}");
|
|
1073
|
}
|
|
1074
|
|
|
1075
|
void WTreeView::setRowHeaderCount(int count)
|
|
1076
|
{
|
|
1077
|
WApplication *app = WApplication::instance();
|
|
1078
|
|
|
1079
|
// This kills progressive enhancement too
|
|
1080
|
if (!app->environment().ajax())
|
|
1081
|
return;
|
|
1082
|
|
|
1083
|
int oldCount = rowHeaderCount();
|
|
1084
|
|
|
1085
|
if (count != 0 && count != 1)
|
|
1086
|
throw WException("WTreeView::setRowHeaderCount: count must be 0 or 1");
|
|
1087
|
|
|
1088
|
WAbstractItemView::setRowHeaderCount(count);
|
|
1089
|
|
|
1090
|
if (count && !oldCount) {
|
|
1091
|
addStyleClass("column1");
|
|
1092
|
WContainerWidget *rootWrap
|
|
1093
|
= dynamic_cast<WContainerWidget *>(contents_->widget(0));
|
|
1094
|
rootWrap->setWidth(WLength(100, LengthUnit::Percentage));
|
|
1095
|
rootWrap->setOverflow(Overflow::Hidden);
|
|
1096
|
contents_->setPositionScheme(PositionScheme::Relative);
|
|
1097
|
rootWrap->setPositionScheme(PositionScheme::Absolute);
|
|
1098
|
|
|
1099
|
bool useStyleLeft
|
|
1100
|
= app->environment().agentIsWebKit()
|
|
1101
|
|| app->environment().agentIsOpera();
|
|
1102
|
|
|
1103
|
if (useStyleLeft) {
|
|
1104
|
bool rtl = app->layoutDirection() == LayoutDirection::RightToLeft;
|
|
1105
|
|
|
1106
|
tieRowsScrollJS_.setJavaScript
|
|
1107
|
("function(obj, event) {"
|
|
1108
|
"" WT_CLASS ".getCssRule('#" + id() + " .Wt-tv-rowc').style.left"
|
|
1109
|
"" "= -obj.scrollLeft "
|
|
1110
|
+ (rtl ? "+ (obj.firstChild.offsetWidth - obj.offsetWidth)" : "")
|
|
1111
|
+ "+ 'px';"
|
|
1112
|
"}");
|
|
1113
|
} else {
|
|
1114
|
/*
|
|
1115
|
* this is for some reason very very slow in webkit, and with
|
|
1116
|
* application/xml on Firefox (jQuery suffers)
|
|
1117
|
*/
|
|
1118
|
tieRowsScrollJS_.setJavaScript
|
|
1119
|
("function(obj, event) {"
|
|
1120
|
"$('#" + id() + " .Wt-tv-rowc').parent().scrollLeft(obj.scrollLeft);"
|
|
1121
|
"}");
|
|
1122
|
}
|
|
1123
|
|
|
1124
|
WContainerWidget *scrollBarContainer = new WContainerWidget();
|
|
1125
|
scrollBarContainer->setStyleClass("cwidth");
|
|
1126
|
scrollBarContainer->setHeight(SCROLLBAR_WIDTH);
|
|
1127
|
scrollBarC_
|
|
1128
|
= scrollBarContainer->addWidget(cpp14::make_unique<WContainerWidget>());
|
|
1129
|
scrollBarC_->setStyleClass("Wt-tv-row Wt-scroll");
|
|
1130
|
scrollBarC_->scrolled().connect(tieRowsScrollJS_);
|
|
1131
|
|
|
1132
|
if (app->environment().agentIsIE()) {
|
|
1133
|
scrollBarContainer->setPositionScheme(PositionScheme::Relative);
|
|
1134
|
bool rtl = app->layoutDirection() == LayoutDirection::RightToLeft;
|
|
1135
|
scrollBarC_->setAttributeValue("style",
|
|
1136
|
std::string(rtl ? "left:" : "right:")
|
|
1137
|
+ "0px");
|
|
1138
|
// and still it doesn't work properly...
|
|
1139
|
}
|
|
1140
|
|
|
1141
|
WContainerWidget *scrollBar
|
|
1142
|
= scrollBarC_->addWidget(cpp14::make_unique<WContainerWidget>());
|
|
1143
|
scrollBar->setStyleClass("Wt-tv-rowc");
|
|
1144
|
if (useStyleLeft)
|
|
1145
|
scrollBar->setAttributeValue("style", "left: 0px;");
|
|
1146
|
impl_->layout()->addWidget(std::unique_ptr<WWidget>(scrollBarContainer));
|
|
1147
|
}
|
|
1148
|
}
|
|
1149
|
|
|
1150
|
WTreeView::~WTreeView()
|
|
1151
|
{
|
|
1152
|
wApp->styleSheet().removeRule(rowHeightRule_);
|
|
1153
|
wApp->styleSheet().removeRule(rowWidthRule_);
|
|
1154
|
wApp->styleSheet().removeRule(rowContentsWidthRule_);
|
|
1155
|
wApp->styleSheet().removeRule(c0StyleRule_);
|
|
1156
|
|
|
1157
|
impl_->clear();
|
|
1158
|
}
|
|
1159
|
|
|
1160
|
std::string WTreeView::columnStyleClass(int column) const
|
|
1161
|
{
|
|
1162
|
return columnInfo(column).styleClass();
|
|
1163
|
}
|
|
1164
|
|
|
1165
|
void WTreeView::setColumnWidth(int column, const WLength& width)
|
|
1166
|
{
|
|
1167
|
if (!width.isAuto())
|
|
1168
|
columnInfo(column).width = WLength(round(width.value()), width.unit());
|
|
1169
|
else
|
|
1170
|
columnInfo(column).width = WLength::Auto;
|
|
1171
|
|
|
1172
|
WWidget *toResize = columnInfo(column).styleRule->templateWidget();
|
|
1173
|
toResize->setWidth(0);
|
|
1174
|
toResize->setWidth(columnInfo(column).width.toPixels());
|
|
1175
|
|
|
1176
|
WApplication *app = WApplication::instance();
|
|
1177
|
|
|
1178
|
if (app->environment().ajax() &&
|
|
1179
|
static_cast<unsigned int>(renderState_) <
|
|
1180
|
static_cast<unsigned int>(RenderState::NeedRerenderHeader))
|
|
1181
|
doJavaScript("$('#" + id() + "').data('obj').adjustColumns();");
|
|
1182
|
|
|
1183
|
if (!app->environment().ajax() && column == 0 && !width.isAuto()) {
|
|
1184
|
double total = 0;
|
|
1185
|
for (int i = 0; i < columnCount(); ++i)
|
|
1186
|
if (!columnInfo(i).hidden)
|
|
1187
|
total += columnWidth(i).toPixels();
|
|
1188
|
|
|
1189
|
resize(total, height());
|
|
1190
|
}
|
|
1191
|
}
|
|
1192
|
|
|
1193
|
void WTreeView::setColumnHidden(int column, bool hidden)
|
|
1194
|
{
|
|
1195
|
if (columnInfo(column).hidden != hidden) {
|
|
1196
|
WAbstractItemView::setColumnHidden(column, hidden);
|
|
1197
|
|
|
1198
|
WWidget *toHide = columnInfo(column).styleRule->templateWidget();
|
|
1199
|
toHide->setHidden(hidden);
|
|
1200
|
|
|
1201
|
setColumnWidth(column, columnWidth(column));
|
|
1202
|
}
|
|
1203
|
}
|
|
1204
|
|
|
1205
|
void WTreeView::setHeaderHeight(const WLength& height)
|
|
1206
|
{
|
|
1207
|
WAbstractItemView::setHeaderHeight(height);
|
|
1208
|
}
|
|
1209
|
|
|
1210
|
void WTreeView::setRootIsDecorated(bool show)
|
|
1211
|
{
|
|
1212
|
rootIsDecorated_ = show;
|
|
1213
|
}
|
|
1214
|
|
|
1215
|
void WTreeView::setAlternatingRowColors(bool enable)
|
|
1216
|
{
|
|
1217
|
WAbstractItemView::setAlternatingRowColors(enable);
|
|
1218
|
setRootNodeStyle();
|
|
1219
|
}
|
|
1220
|
|
|
1221
|
void WTreeView::setRootNodeStyle()
|
|
1222
|
{
|
|
1223
|
if (!rootNode_)
|
|
1224
|
return;
|
|
1225
|
|
|
1226
|
if (alternatingRowColors())
|
|
1227
|
rootNode_->decorationStyle().setBackgroundImage
|
|
1228
|
(WLink(WApplication::instance()->theme()->resourcesUrl()
|
|
1229
|
+ "stripes/stripe-" + std::to_string
|
|
1230
|
(static_cast<int>(rowHeight().toPixels())) + "px.gif"));
|
|
1231
|
else
|
|
1232
|
rootNode_->decorationStyle().setBackgroundImage(WLink(""));
|
|
1233
|
}
|
|
1234
|
|
|
1235
|
void WTreeView::setRowHeight(const WLength& rowHeight)
|
|
1236
|
{
|
|
1237
|
WAbstractItemView::setRowHeight(rowHeight);
|
|
1238
|
|
|
1239
|
if (rowHeightRule_) {
|
|
1240
|
rowHeightRule_->templateWidget()->setHeight(rowHeight);
|
|
1241
|
rowHeightRule_->templateWidget()->setLineHeight(rowHeight);
|
|
1242
|
}
|
|
1243
|
|
|
1244
|
if (!WApplication::instance()->environment().ajax() && !height().isAuto())
|
|
1245
|
viewportHeight_ = static_cast<int>(contentsContainer_->height().toPixels()
|
|
1246
|
/ rowHeight.toPixels());
|
|
1247
|
|
|
1248
|
setRootNodeStyle();
|
|
1249
|
|
|
1250
|
for (NodeMap::const_iterator i = renderedNodes_.begin();
|
|
1251
|
i != renderedNodes_.end(); ++i)
|
|
1252
|
i->second->rerenderSpacers();
|
|
1253
|
|
|
1254
|
if (rootNode_)
|
|
1255
|
scheduleRerender(RenderState::NeedAdjustViewPort);
|
|
1256
|
}
|
|
1257
|
|
|
1258
|
void WTreeView::resize(const WLength& width, const WLength& height)
|
|
1259
|
{
|
|
1260
|
WApplication *app = WApplication::instance();
|
|
1261
|
WLength w = app->environment().ajax() ? WLength::Auto : width;
|
|
1262
|
|
|
1263
|
if (app->environment().ajax())
|
|
1264
|
contentsContainer_->setWidth(w);
|
|
1265
|
|
|
1266
|
if (headerContainer_)
|
|
1267
|
headerContainer_->setWidth(w);
|
|
1268
|
|
|
1269
|
if (!height.isAuto()) {
|
|
1270
|
if (!app->environment().ajax()) {
|
|
1271
|
if (impl_->count() < 3)
|
|
1272
|
impl_->addWidget(createPageNavigationBar());
|
|
1273
|
|
|
1274
|
double navigationBarHeight = 35;
|
|
1275
|
double headerHeight = this->headerHeight().toPixels();
|
|
1276
|
|
|
1277
|
int h = (int)(height.toPixels() - navigationBarHeight - headerHeight);
|
|
1278
|
contentsContainer_->setHeight(std::max(h, (int)rowHeight().value()));
|
|
1279
|
|
|
1280
|
viewportHeight_
|
|
1281
|
= static_cast<int>(contentsContainer_->height().toPixels()
|
|
1282
|
/ rowHeight().toPixels());
|
|
1283
|
} else
|
|
1284
|
viewportHeight_ = static_cast<int>
|
|
1285
|
(std::ceil(height.toPixels() / rowHeight().toPixels()));
|
|
1286
|
} else {
|
|
1287
|
if (app->environment().ajax())
|
|
1288
|
viewportHeight_ = UNKNOWN_VIEWPORT_HEIGHT;
|
|
1289
|
|
|
1290
|
scheduleRerender(RenderState::NeedAdjustViewPort);
|
|
1291
|
}
|
|
1292
|
|
|
1293
|
WCompositeWidget::resize(width, height);
|
|
1294
|
}
|
|
1295
|
|
|
1296
|
int WTreeView::calcOptimalFirstRenderedRow() const
|
|
1297
|
{
|
|
1298
|
if (WApplication::instance()->environment().ajax())
|
|
1299
|
return std::max(0, viewportTop_ - viewportHeight_ - viewportHeight_ / 2);
|
|
1300
|
else
|
|
1301
|
return viewportTop_;
|
|
1302
|
}
|
|
1303
|
|
|
1304
|
int WTreeView::calcOptimalRenderedRowCount() const
|
|
1305
|
{
|
|
1306
|
if (WApplication::instance()->environment().ajax())
|
|
1307
|
return 4 * viewportHeight_;
|
|
1308
|
else
|
|
1309
|
return viewportHeight_ + 5; // some margin... something inaccurate going on?
|
|
1310
|
}
|
|
1311
|
|
|
1312
|
void WTreeView::setModel(const std::shared_ptr<WAbstractItemModel>& model)
|
|
1313
|
{
|
|
1314
|
WAbstractItemView::setModel(model);
|
|
1315
|
|
|
1316
|
typedef WTreeView Self;
|
|
1317
|
|
|
1318
|
/* connect slots to new model */
|
|
1319
|
modelConnections_.push_back(model->columnsInserted().connect
|
|
1320
|
(this, &Self::modelColumnsInserted));
|
|
1321
|
modelConnections_.push_back(model->columnsAboutToBeRemoved().connect
|
|
1322
|
(this, &Self::modelColumnsAboutToBeRemoved));
|
|
1323
|
modelConnections_.push_back(model->columnsRemoved().connect
|
|
1324
|
(this, &Self::modelColumnsRemoved));
|
|
1325
|
modelConnections_.push_back(model->rowsInserted().connect
|
|
1326
|
(this, &Self::modelRowsInserted));
|
|
1327
|
modelConnections_.push_back(model->rowsAboutToBeRemoved().connect
|
|
1328
|
(this, &Self::modelRowsAboutToBeRemoved));
|
|
1329
|
modelConnections_.push_back(model->rowsRemoved().connect
|
|
1330
|
(this, &Self::modelRowsRemoved));
|
|
1331
|
modelConnections_.push_back(model->dataChanged().connect
|
|
1332
|
(this, &Self::modelDataChanged));
|
|
1333
|
modelConnections_.push_back(model->headerDataChanged().connect
|
|
1334
|
(this, &Self::modelHeaderDataChanged));
|
|
1335
|
modelConnections_.push_back(model->layoutAboutToBeChanged().connect
|
|
1336
|
(this, &Self::modelLayoutAboutToBeChanged));
|
|
1337
|
modelConnections_.push_back(model->layoutChanged().connect
|
|
1338
|
(this, &Self::modelLayoutChanged));
|
|
1339
|
modelConnections_.push_back(model->modelReset().connect
|
|
1340
|
(this, &Self::modelReset));
|
|
1341
|
|
|
1342
|
expandedSet_.clear();
|
|
1343
|
|
|
1344
|
WApplication *app = WApplication::instance();
|
|
1345
|
while (static_cast<int>(columns_.size()) > model->columnCount()) {
|
|
1346
|
app->styleSheet().removeRule(columns_.back().styleRule.get());
|
|
1347
|
columns_.erase(columns_.begin() + columns_.size() - 1);
|
|
1348
|
}
|
|
1349
|
|
|
1350
|
pageChanged().emit();
|
|
1351
|
}
|
|
1352
|
|
|
1353
|
void WTreeView::scheduleRerender(RenderState what)
|
|
1354
|
{
|
|
1355
|
if (what == RenderState::NeedRerender || what == RenderState::NeedRerenderData) {
|
|
1356
|
if(rootNode_){
|
|
1357
|
rootNode_->removeFromParent();
|
|
1358
|
rootNode_ = nullptr;
|
|
1359
|
}
|
|
1360
|
}
|
|
1361
|
|
|
1362
|
WAbstractItemView::scheduleRerender(what);
|
|
1363
|
}
|
|
1364
|
|
|
1365
|
void WTreeView::render(WFlags<RenderFlag> flags)
|
|
1366
|
{
|
|
1367
|
WApplication *app = WApplication::instance();
|
|
1368
|
|
|
1369
|
if (flags.test(RenderFlag::Full)) {
|
|
1370
|
defineJavaScript();
|
|
1371
|
|
|
1372
|
if (!itemTouchEvent_.isConnected())
|
|
1373
|
itemTouchEvent_.connect(this, &WTreeView::onItemTouchEvent);
|
|
1374
|
|
|
1375
|
if (!itemEvent_.isConnected()) {
|
|
1376
|
itemEvent_.connect(this, &WTreeView::onItemEvent);
|
|
1377
|
|
|
1378
|
addCssRule("#" + id() + " .cwidth", "");
|
|
1379
|
|
|
1380
|
rowHeightRule_ = app->styleSheet().addRule
|
|
1381
|
(cpp14::make_unique<WCssTemplateRule>("#" + id() + " .rh"));
|
|
1382
|
rowHeightRule_->templateWidget()->setHeight(rowHeight());
|
|
1383
|
rowHeightRule_->templateWidget()->setLineHeight(rowHeight());
|
|
1384
|
|
|
1385
|
rowWidthRule_ = app->styleSheet().addRule
|
|
1386
|
(cpp14::make_unique<WCssTemplateRule>("#" + id() + " .Wt-tv-row"));
|
|
1387
|
rowContentsWidthRule_ = app->styleSheet().addRule
|
|
1388
|
(cpp14::make_unique<WCssTemplateRule>("#" + id() + " .Wt-tv-rowc"));
|
|
1389
|
|
|
1390
|
if (app->environment().ajax()) {
|
|
1391
|
contentsContainer_->scrolled().connect
|
|
1392
|
("function(obj, event) {"
|
|
1393
|
/*
|
|
1394
|
* obj.sb: workaround for Konqueror to prevent recursive
|
|
1395
|
* invocation because reading scrollLeft triggers onscroll()
|
|
1396
|
*/
|
|
1397
|
"""if (obj.sb) return;"
|
|
1398
|
"""obj.sb = true;"
|
|
1399
|
"" + headerContainer_->jsRef() + ".scrollLeft=obj.scrollLeft;"
|
|
1400
|
/* the following is a workaround for IE7 */
|
|
1401
|
"""var t = " + contents_->jsRef() + ".firstChild;"
|
|
1402
|
"""var h = " + headers_->jsRef() + ";"
|
|
1403
|
"""h.style.width = (t.offsetWidth - 1) + 'px';"
|
|
1404
|
"""h.style.width = t.offsetWidth + 'px';"
|
|
1405
|
"""obj.sb = false;"
|
|
1406
|
"}");
|
|
1407
|
}
|
|
1408
|
|
|
1409
|
c0StyleRule_ = addCssRule("#" + id() + " li .none",
|
|
1410
|
"width: auto;"
|
|
1411
|
"text-overflow: ellipsis;"
|
|
1412
|
"overflow: hidden");
|
|
1413
|
|
|
1414
|
if (columns_.size() > 0) {
|
|
1415
|
ColumnInfo& ci = columnInfo(0);
|
|
1416
|
c0StyleRule_->setSelector("#" + id() + " li ." + ci.styleClass());
|
|
1417
|
}
|
|
1418
|
}
|
|
1419
|
}
|
|
1420
|
|
|
1421
|
while (renderState_ != RenderState::RenderOk) {
|
|
1422
|
RenderState s = renderState_;
|
|
1423
|
renderState_ = RenderState::RenderOk;
|
|
1424
|
|
|
1425
|
switch (s) {
|
|
1426
|
case RenderState::NeedRerender:
|
|
1427
|
rerenderHeader();
|
|
1428
|
rerenderTree();
|
|
1429
|
break;
|
|
1430
|
case RenderState::NeedRerenderHeader:
|
|
1431
|
rerenderHeader();
|
|
1432
|
break;
|
|
1433
|
case RenderState::NeedRerenderData:
|
|
1434
|
rerenderTree();
|
|
1435
|
break;
|
|
1436
|
case RenderState::NeedAdjustViewPort:
|
|
1437
|
adjustToViewport();
|
|
1438
|
break;
|
|
1439
|
default:
|
|
1440
|
break;
|
|
1441
|
}
|
|
1442
|
}
|
|
1443
|
|
|
1444
|
if (app->environment().ajax() && rowHeaderCount() && renderedNodesAdded_) {
|
|
1445
|
doJavaScript("{var s=" + scrollBarC_->jsRef() + ";"
|
|
1446
|
"""if (s) {" + tieRowsScrollJS_.execJs("s") + "}"
|
|
1447
|
"}");
|
|
1448
|
renderedNodesAdded_ = false;
|
|
1449
|
}
|
|
1450
|
|
|
1451
|
// update the rowHeight (needed for scrolling fix)
|
|
1452
|
WStringStream s;
|
|
1453
|
s << "jQuery.data(" << jsRef()
|
|
1454
|
<< ", 'obj').setRowHeight("
|
|
1455
|
<< static_cast<int>(this->rowHeight().toPixels())
|
|
1456
|
<< ");";
|
|
1457
|
|
|
1458
|
if (app->environment().ajax())
|
|
1459
|
doJavaScript(s.str());
|
|
1460
|
|
|
1461
|
WAbstractItemView::render(flags);
|
|
1462
|
}
|
|
1463
|
|
|
1464
|
void WTreeView::rerenderHeader()
|
|
1465
|
{
|
|
1466
|
WApplication *app = WApplication::instance();
|
|
1467
|
|
|
1468
|
saveExtraHeaderWidgets();
|
|
1469
|
headers_->clear();
|
|
1470
|
|
|
1471
|
WContainerWidget *row
|
|
1472
|
= headers_->addWidget(cpp14::make_unique<WContainerWidget>());
|
|
1473
|
row->setFloatSide(Side::Right);
|
|
1474
|
|
|
1475
|
if (rowHeaderCount()) {
|
|
1476
|
row->setStyleClass("Wt-tv-row headerrh background");
|
|
1477
|
row = row->addWidget(cpp14::make_unique<WContainerWidget>());
|
|
1478
|
row->setStyleClass("Wt-tv-rowc headerrh");
|
|
1479
|
} else
|
|
1480
|
row->setStyleClass("Wt-tv-row");
|
|
1481
|
|
|
1482
|
for (int i = 0; i < columnCount(); ++i) {
|
|
1483
|
std::unique_ptr<WWidget> w = createHeaderWidget(i);
|
|
1484
|
|
|
1485
|
if (i != 0) {
|
|
1486
|
w->setFloatSide(Side::Left);
|
|
1487
|
row->addWidget(std::move(w));
|
|
1488
|
} else
|
|
1489
|
headers_->addWidget(std::move(w));
|
|
1490
|
}
|
|
1491
|
|
|
1492
|
if (app->environment().ajax())
|
|
1493
|
doJavaScript("$('#" + id() + "').data('obj').adjustColumns();");
|
|
1494
|
}
|
|
1495
|
|
|
1496
|
void WTreeView::enableAjax()
|
|
1497
|
{
|
|
1498
|
saveExtraHeaderWidgets();
|
|
1499
|
|
|
1500
|
setup();
|
|
1501
|
defineJavaScript();
|
|
1502
|
|
|
1503
|
scheduleRerender(RenderState::NeedRerender);
|
|
1504
|
|
|
1505
|
WAbstractItemView::enableAjax();
|
|
1506
|
}
|
|
1507
|
|
|
1508
|
void WTreeView::rerenderTree()
|
|
1509
|
{
|
|
1510
|
WContainerWidget *wrapRoot
|
|
1511
|
= dynamic_cast<WContainerWidget *>(contents_->widget(0));
|
|
1512
|
|
|
1513
|
bool firstTime = rootNode_ == nullptr;
|
|
1514
|
wrapRoot->clear();
|
|
1515
|
|
|
1516
|
firstRenderedRow_ = calcOptimalFirstRenderedRow();
|
|
1517
|
validRowCount_ = 0;
|
|
1518
|
|
|
1519
|
rootNode_ = wrapRoot->addWidget
|
|
1520
|
(cpp14::make_unique<WTreeViewNode>(this, rootIndex(), -1, true, nullptr));
|
|
1521
|
|
|
1522
|
if (WApplication::instance()->environment().ajax()) {
|
|
1523
|
|
|
1524
|
if (editTriggers().test(EditTrigger::SingleClicked) ||
|
|
1525
|
clicked().isConnected()) {
|
|
1526
|
connectObjJS(rootNode_->clicked(), "click");
|
|
1527
|
if (firstTime)
|
|
1528
|
connectObjJS(contentsContainer_->clicked(), "rootClick");
|
|
1529
|
}
|
|
1530
|
|
|
1531
|
if (editTriggers().test(EditTrigger::DoubleClicked) ||
|
|
1532
|
doubleClicked().isConnected()) {
|
|
1533
|
connectObjJS(rootNode_->doubleClicked(), "dblClick");
|
|
1534
|
if (firstTime)
|
|
1535
|
connectObjJS(contentsContainer_->doubleClicked(), "rootDblClick");
|
|
1536
|
}
|
|
1537
|
|
|
1538
|
connectObjJS(rootNode_->mouseWentDown(), "mouseDown");
|
|
1539
|
if (firstTime)
|
|
1540
|
connectObjJS(contentsContainer_->mouseWentDown(), "rootMouseDown");
|
|
1541
|
|
|
1542
|
if (mouseWentUp().isConnected()) {
|
|
1543
|
// Do not stop propagation to avoid mouseDrag event being emitted
|
|
1544
|
connectObjJS(rootNode_->mouseWentUp(), "mouseUp");
|
|
1545
|
if (firstTime)
|
|
1546
|
connectObjJS(contentsContainer_->mouseWentUp(), "rootMouseUp");
|
|
1547
|
}
|
|
1548
|
|
|
1549
|
#ifdef WT_CNOR
|
|
1550
|
// workaround because cnor is a bit dumb and does not understand that it
|
|
1551
|
// can convert EventSignal<TouchEvent>& to EventSignalBase&
|
|
1552
|
EventSignalBase& a = rootNode_->touchStarted();
|
|
1553
|
#endif
|
|
1554
|
|
|
1555
|
connectObjJS(rootNode_->touchStarted(), "touchStart");
|
|
1556
|
connectObjJS(rootNode_->touchMoved(), "touchMove");
|
|
1557
|
connectObjJS(rootNode_->touchEnded(), "touchEnd");
|
|
1558
|
}
|
|
1559
|
|
|
1560
|
setRootNodeStyle();
|
|
1561
|
|
|
1562
|
pageChanged().emit();
|
|
1563
|
|
|
1564
|
adjustToViewport();
|
|
1565
|
}
|
|
1566
|
|
|
1567
|
void WTreeView::onViewportChange(WScrollEvent e)
|
|
1568
|
{
|
|
1569
|
viewportTop_ = static_cast<int>
|
|
1570
|
(std::floor(e.scrollY() / rowHeight().toPixels()));
|
|
1571
|
|
|
1572
|
contentsSizeChanged(0, e.viewportHeight());
|
|
1573
|
}
|
|
1574
|
|
|
1575
|
void WTreeView::contentsSizeChanged(int width, int height)
|
|
1576
|
{
|
|
1577
|
viewportHeight_
|
|
1578
|
= static_cast<int>(std::ceil(height / rowHeight().toPixels()));
|
|
1579
|
|
|
1580
|
scheduleRerender(RenderState::NeedAdjustViewPort);
|
|
1581
|
}
|
|
1582
|
|
|
1583
|
void WTreeView::onItemEvent(std::string nodeAndColumnId, std::string type,
|
|
1584
|
std::string extra1, std::string extra2,
|
|
1585
|
WMouseEvent event)
|
|
1586
|
{
|
|
1587
|
// nodeId and columnId are combined because WSignal needed to be changed
|
|
1588
|
// since MSVS 2012 does not support >5 arguments in std::bind()
|
|
1589
|
WModelIndex index = calculateModelIndex(nodeAndColumnId);
|
|
1590
|
|
|
1591
|
/*
|
|
1592
|
* Every mouse event is emitted twice (because we don't prevent
|
|
1593
|
* the propagation because it will block the mouseWentUp event
|
|
1594
|
* and therefore result in mouseDragged being emitted (See #3879)
|
|
1595
|
*/
|
|
1596
|
if (nodeAndColumnId.empty() && skipNextMouseEvent_) {
|
|
1597
|
skipNextMouseEvent_ = false;
|
|
1598
|
return;
|
|
1599
|
} else if (!nodeAndColumnId.empty()) {
|
|
1600
|
skipNextMouseEvent_ = true;
|
|
1601
|
}
|
|
1602
|
|
|
1603
|
if (type == "clicked") {
|
|
1604
|
handleClick(index, event);
|
|
1605
|
} else if (type == "dblclicked") {
|
|
1606
|
handleDoubleClick(index, event);
|
|
1607
|
} else if (type == "mousedown") {
|
|
1608
|
handleMouseDown(index, event);
|
|
1609
|
} else if (type == "mouseup") {
|
|
1610
|
handleMouseUp(index, event);
|
|
1611
|
} else if (type == "drop") {
|
|
1612
|
WDropEvent e(WApplication::instance()->decodeObject(extra1), extra2, event);
|
|
1613
|
dropEvent(e, index);
|
|
1614
|
}
|
|
1615
|
}
|
|
1616
|
|
|
1617
|
void WTreeView::onItemTouchEvent(std::string nodeAndColumnId, std::string type, WTouchEvent event)
|
|
1618
|
{
|
|
1619
|
// nodeId and columnId are combined because WSignal needed to be changed
|
|
1620
|
// since MSVS 2012 does not support >5 arguments in std::bind()
|
|
1621
|
std::vector<WModelIndex> index;
|
|
1622
|
index.push_back(calculateModelIndex(nodeAndColumnId));
|
|
1623
|
|
|
1624
|
if (type == "touchselect")
|
|
1625
|
handleTouchSelect(index, event);
|
|
1626
|
else if (type == "touchstart")
|
|
1627
|
handleTouchStart(index, event);
|
|
1628
|
else if (type == "touchend")
|
|
1629
|
handleTouchEnd(index, event);
|
|
1630
|
}
|
|
1631
|
|
|
1632
|
WModelIndex WTreeView::calculateModelIndex(std::string nodeAndColumnId)
|
|
1633
|
{
|
|
1634
|
std::vector<std::string> nodeAndColumnSplit;
|
|
1635
|
boost::split(nodeAndColumnSplit, nodeAndColumnId, boost::is_any_of(":"));
|
|
1636
|
|
|
1637
|
WModelIndex index;
|
|
1638
|
|
|
1639
|
if (nodeAndColumnSplit.size() == 2) {
|
|
1640
|
std::string nodeId = nodeAndColumnSplit[0];
|
|
1641
|
int columnId = -1;
|
|
1642
|
try {
|
|
1643
|
columnId = Utils::stoi(std::string(nodeAndColumnSplit[1]));
|
|
1644
|
} catch (std::exception& e) {
|
|
1645
|
LOG_ERROR("WTreeview::calculateModelIndex: bad value for format 1: "
|
|
1646
|
<< nodeAndColumnSplit[1]);
|
|
1647
|
}
|
|
1648
|
|
|
1649
|
int column = (columnId == 0 ? 0 : -1);
|
|
1650
|
for (unsigned i = 0; i < columns_.size(); ++i)
|
|
1651
|
if (columns_[i].id == columnId) {
|
|
1652
|
column = i;
|
|
1653
|
break;
|
|
1654
|
}
|
|
1655
|
|
|
1656
|
if (column != -1) {
|
|
1657
|
WModelIndex c0index;
|
|
1658
|
for (NodeMap::const_iterator i = renderedNodes_.begin();
|
|
1659
|
i != renderedNodes_.end(); ++i) {
|
|
1660
|
if (i->second->id() == nodeId) {
|
|
1661
|
c0index = i->second->modelIndex();
|
|
1662
|
break;
|
|
1663
|
}
|
|
1664
|
}
|
|
1665
|
|
|
1666
|
if (c0index.isValid())
|
|
1667
|
index = model()->index(c0index.row(), column, c0index.parent());
|
|
1668
|
else
|
|
1669
|
LOG_ERROR("WTreeView::calculateModelIndex: illegal node id: " << nodeId);
|
|
1670
|
}
|
|
1671
|
}
|
|
1672
|
return index;
|
|
1673
|
}
|
|
1674
|
|
|
1675
|
int WTreeView::subTreeHeight(const WModelIndex& index,
|
|
1676
|
int lowerBound, int upperBound) const
|
|
1677
|
{
|
|
1678
|
int result = 0;
|
|
1679
|
|
|
1680
|
if (index != rootIndex())
|
|
1681
|
++result;
|
|
1682
|
|
|
1683
|
if (result >= upperBound)
|
|
1684
|
return result;
|
|
1685
|
|
|
1686
|
if (model() && isExpanded(index)) {
|
|
1687
|
int childCount = model()->rowCount(index);
|
|
1688
|
|
|
1689
|
for (int i = 0; i < childCount; ++i) {
|
|
1690
|
WModelIndex childIndex = model()->index(i, 0, index);
|
|
1691
|
|
|
1692
|
result += subTreeHeight(childIndex, upperBound - result);
|
|
1693
|
|
|
1694
|
if (result >= upperBound)
|
|
1695
|
return result;
|
|
1696
|
}
|
|
1697
|
}
|
|
1698
|
|
|
1699
|
return result;
|
|
1700
|
}
|
|
1701
|
|
|
1702
|
bool WTreeView::isExpanded(const WModelIndex& index) const
|
|
1703
|
{
|
|
1704
|
return index == rootIndex()
|
|
1705
|
|| expandedSet_.find(index) != expandedSet_.end();
|
|
1706
|
}
|
|
1707
|
|
|
1708
|
bool WTreeView::isExpandedRecursive(const WModelIndex& index) const
|
|
1709
|
{
|
|
1710
|
if (isExpanded(index)) {
|
|
1711
|
if (index != rootIndex())
|
|
1712
|
return isExpanded(index.parent());
|
|
1713
|
else
|
|
1714
|
return false;
|
|
1715
|
} else
|
|
1716
|
return false;
|
|
1717
|
}
|
|
1718
|
|
|
1719
|
void WTreeView::setCollapsed(const WModelIndex& index)
|
|
1720
|
{
|
|
1721
|
expandedSet_.erase(index);
|
|
1722
|
|
|
1723
|
/*
|
|
1724
|
* Deselecting everything that is collapsed is not consistent with
|
|
1725
|
* the allowed initial state. If the user wants this, he can implement
|
|
1726
|
* this himself.
|
|
1727
|
*/
|
|
1728
|
#if 0
|
|
1729
|
bool selectionHasChanged = false;
|
|
1730
|
WModelIndexSet& selection = selectionModel()->selection_;
|
|
1731
|
|
|
1732
|
WModelIndexSet toDeselect;
|
|
1733
|
for (WModelIndexSet::iterator it = selection.lower_bound(index);
|
|
1734
|
it != selection.end(); ++it) {
|
|
1735
|
WModelIndex i = *it;
|
|
1736
|
if (i == index) {
|
|
1737
|
} else if (WModelIndex::isAncestor(i, index)) {
|
|
1738
|
toDeselect.insert(i);
|
|
1739
|
} else
|
|
1740
|
break;
|
|
1741
|
}
|
|
1742
|
|
|
1743
|
for (WModelIndexSet::iterator it = toDeselect.begin();
|
|
1744
|
it != toDeselect.end(); ++it)
|
|
1745
|
if (internalSelect(*it, SelectionFlag::Deselect))
|
|
1746
|
selectionHasChanged = true;
|
|
1747
|
|
|
1748
|
if (selectionHasChanged)
|
|
1749
|
selectionChanged().emit();
|
|
1750
|
#endif
|
|
1751
|
}
|
|
1752
|
|
|
1753
|
void WTreeView::setExpanded(const WModelIndex& index, bool expanded)
|
|
1754
|
{
|
|
1755
|
if (isExpanded(index) != expanded) {
|
|
1756
|
WWidget *w = widgetForIndex(index);
|
|
1757
|
|
|
1758
|
WTreeViewNode *node = w ? dynamic_cast<WTreeViewNode *>(w) : nullptr;
|
|
1759
|
|
|
1760
|
if (node) {
|
|
1761
|
if (expanded)
|
|
1762
|
node->doExpand();
|
|
1763
|
else
|
|
1764
|
node->doCollapse();
|
|
1765
|
} else {
|
|
1766
|
int height = subTreeHeight(index);
|
|
1767
|
|
|
1768
|
if (expanded)
|
|
1769
|
expandedSet_.insert(index);
|
|
1770
|
else
|
|
1771
|
setCollapsed(index);
|
|
1772
|
|
|
1773
|
if (w) {
|
|
1774
|
RowSpacer *spacer = dynamic_cast<RowSpacer *>(w);
|
|
1775
|
|
|
1776
|
int diff = subTreeHeight(index) - height;
|
|
1777
|
|
|
1778
|
spacer->setRows(spacer->rows() + diff);
|
|
1779
|
spacer->node()->adjustChildrenHeight(diff);
|
|
1780
|
|
|
1781
|
renderedRowsChanged(renderedRow(index, spacer,
|
|
1782
|
renderLowerBound(), renderUpperBound()),
|
|
1783
|
diff);
|
|
1784
|
}
|
|
1785
|
}
|
|
1786
|
}
|
|
1787
|
}
|
|
1788
|
|
|
1789
|
void WTreeView::expand(const WModelIndex& index)
|
|
1790
|
{
|
|
1791
|
setExpanded(index, true);
|
|
1792
|
}
|
|
1793
|
|
|
1794
|
void WTreeView::collapse(const WModelIndex& index)
|
|
1795
|
{
|
|
1796
|
setExpanded(index, false);
|
|
1797
|
}
|
|
1798
|
|
|
1799
|
void WTreeView::expandToDepth(int depth)
|
|
1800
|
{
|
|
1801
|
if (depth > 0)
|
|
1802
|
expandChildrenToDepth(rootIndex(), depth);
|
|
1803
|
}
|
|
1804
|
|
|
1805
|
void WTreeView::expandChildrenToDepth(const WModelIndex& index, int depth)
|
|
1806
|
{
|
|
1807
|
for (int i = 0; i < model()->rowCount(index); ++i) {
|
|
1808
|
WModelIndex c = model()->index(i, 0, index);
|
|
1809
|
|
|
1810
|
expand(c);
|
|
1811
|
|
|
1812
|
if (depth > 1)
|
|
1813
|
expandChildrenToDepth(c, depth - 1);
|
|
1814
|
}
|
|
1815
|
}
|
|
1816
|
|
|
1817
|
WWidget *WTreeView::itemWidget(const WModelIndex& index) const
|
|
1818
|
{
|
|
1819
|
if (!index.isValid())
|
|
1820
|
return nullptr;
|
|
1821
|
|
|
1822
|
WTreeViewNode *n = nodeForIndex(index);
|
|
1823
|
if (n)
|
|
1824
|
return n->cellWidget(index.column());
|
|
1825
|
else
|
|
1826
|
return nullptr;
|
|
1827
|
}
|
|
1828
|
|
|
1829
|
/*
|
|
1830
|
* Returns the widget that renders the node indicated by index.
|
|
1831
|
*
|
|
1832
|
* It may be:
|
|
1833
|
* - a tree node (node->modelIndex() == index)
|
|
1834
|
* - 0 if index is not somewhere in column 0
|
|
1835
|
* - a spacer which includes the 'index', when all intermediate
|
|
1836
|
* nodes are expanded, or
|
|
1837
|
* - 0 otherwise
|
|
1838
|
*/
|
|
1839
|
WWidget *WTreeView::widgetForIndex(const WModelIndex& index) const
|
|
1840
|
{
|
|
1841
|
if (!index.isValid())
|
|
1842
|
return rootNode_;
|
|
1843
|
|
|
1844
|
if (index.column() != 0)
|
|
1845
|
return nullptr;
|
|
1846
|
|
|
1847
|
NodeMap::const_iterator i = renderedNodes_.find(index);
|
|
1848
|
|
|
1849
|
if (i != renderedNodes_.end())
|
|
1850
|
return i->second;
|
|
1851
|
else {
|
|
1852
|
if (!isExpanded(index.parent()))
|
|
1853
|
return nullptr;
|
|
1854
|
|
|
1855
|
WWidget *parent = widgetForIndex(index.parent());
|
|
1856
|
WTreeViewNode *parentNode = dynamic_cast<WTreeViewNode *>(parent);
|
|
1857
|
|
|
1858
|
if (parentNode) {
|
|
1859
|
int row = getIndexRow(index, parentNode->modelIndex(), 0,
|
|
1860
|
std::numeric_limits<int>::max());
|
|
1861
|
return parentNode->widgetForModelRow(row);
|
|
1862
|
} else
|
|
1863
|
return parent;
|
|
1864
|
}
|
|
1865
|
}
|
|
1866
|
|
|
1867
|
void WTreeView::modelColumnsInserted(const WModelIndex& parent,
|
|
1868
|
int start, int end)
|
|
1869
|
{
|
|
1870
|
int count = end - start + 1;
|
|
1871
|
if (!parent.isValid()) {
|
|
1872
|
|
|
1873
|
WApplication *app = WApplication::instance();
|
|
1874
|
for (int i = start; i < start + count; ++i)
|
|
1875
|
columns_.insert(columns_.begin() + i, createColumnInfo(i));
|
|
1876
|
|
|
1877
|
if (static_cast<unsigned int>(renderState_) <
|
|
1878
|
static_cast<unsigned int>(RenderState::NeedRerenderHeader)) {
|
|
1879
|
if (start == 0)
|
|
1880
|
scheduleRerender(RenderState::NeedRerenderHeader);
|
|
1881
|
else {
|
|
1882
|
if (app->environment().ajax())
|
|
1883
|
doJavaScript("$('#" + id() + "').data('obj').adjustColumns();");
|
|
1884
|
|
|
1885
|
WContainerWidget *row = headerRow();
|
|
1886
|
|
|
1887
|
for (int i = start; i < start + count; ++i) {
|
|
1888
|
std::unique_ptr<WWidget> w = createHeaderWidget(i);
|
|
1889
|
w->setFloatSide(Side::Left);
|
|
1890
|
row->insertWidget(i - 1, std::move(w));
|
|
1891
|
}
|
|
1892
|
}
|
|
1893
|
}
|
|
1894
|
}
|
|
1895
|
|
|
1896
|
if (renderState_ == RenderState::NeedRerender ||
|
|
1897
|
renderState_ == RenderState::NeedRerenderData)
|
|
1898
|
return;
|
|
1899
|
|
|
1900
|
if (start == 0)
|
|
1901
|
scheduleRerender(RenderState::NeedRerenderData);
|
|
1902
|
else {
|
|
1903
|
WTreeViewNode *node = nodeForIndex(parent);
|
|
1904
|
if (node)
|
|
1905
|
for (WTreeViewNode *c = node->nextChildNode(nullptr); c;
|
|
1906
|
c = node->nextChildNode(c))
|
|
1907
|
c->insertColumns(start, count);
|
|
1908
|
}
|
|
1909
|
}
|
|
1910
|
|
|
1911
|
void WTreeView::modelColumnsAboutToBeRemoved(const WModelIndex& parent,
|
|
1912
|
int start, int end)
|
|
1913
|
{
|
|
1914
|
int count = end - start + 1;
|
|
1915
|
if (!parent.isValid()) {
|
|
1916
|
WApplication *app = wApp;
|
|
1917
|
|
|
1918
|
if (static_cast<unsigned int>(renderState_) <
|
|
1919
|
static_cast<unsigned int>(RenderState::NeedRerenderHeader)) {
|
|
1920
|
if (app->environment().ajax())
|
|
1921
|
doJavaScript("$('#" + id() + "').data('obj').adjustColumns();");
|
|
1922
|
}
|
|
1923
|
|
|
1924
|
for (int i=start; i<start+count; i++)
|
|
1925
|
app->styleSheet().removeRule(columns_[i].styleRule.get());
|
|
1926
|
columns_.erase(columns_.begin() + start, columns_.begin() + start + count);
|
|
1927
|
|
|
1928
|
if (static_cast<unsigned int>(renderState_) <
|
|
1929
|
static_cast<unsigned int>(RenderState::NeedRerenderHeader)) {
|
|
1930
|
if (start == 0)
|
|
1931
|
scheduleRerender(RenderState::NeedRerenderHeader);
|
|
1932
|
else {
|
|
1933
|
for (int i = start; i < start + count; ++i) {
|
|
1934
|
auto w = headerWidget(start, false);
|
|
1935
|
if (w)
|
|
1936
|
w->removeFromParent();
|
|
1937
|
}
|
|
1938
|
}
|
|
1939
|
}
|
|
1940
|
}
|
|
1941
|
|
|
1942
|
if (start == 0)
|
|
1943
|
scheduleRerender(RenderState::NeedRerenderData);
|
|
1944
|
}
|
|
1945
|
|
|
1946
|
void WTreeView::modelColumnsRemoved(const WModelIndex& parent,
|
|
1947
|
int start, int end)
|
|
1948
|
{
|
|
1949
|
if (renderState_ == RenderState::NeedRerender ||
|
|
1950
|
renderState_ == RenderState::NeedRerenderData)
|
|
1951
|
return;
|
|
1952
|
|
|
1953
|
int count = end - start + 1;
|
|
1954
|
|
|
1955
|
if (start != 0) {
|
|
1956
|
WTreeViewNode *node = nodeForIndex(parent);
|
|
1957
|
if (node)
|
|
1958
|
for (WTreeViewNode *c = node->nextChildNode(nullptr); c;
|
|
1959
|
c = node->nextChildNode(c))
|
|
1960
|
c->removeColumns(start, count);
|
|
1961
|
}
|
|
1962
|
|
|
1963
|
if (start <= currentSortColumn_ && currentSortColumn_ <= end)
|
|
1964
|
currentSortColumn_ = -1;
|
|
1965
|
}
|
|
1966
|
|
|
1967
|
void WTreeView::modelRowsInserted(const WModelIndex& parent,
|
|
1968
|
int start, int end)
|
|
1969
|
{
|
|
1970
|
int count = end - start + 1;
|
|
1971
|
shiftModelIndexes(parent, start, count);
|
|
1972
|
|
|
1973
|
if (renderState_ == RenderState::NeedRerender ||
|
|
1974
|
renderState_ == RenderState::NeedRerenderData)
|
|
1975
|
return;
|
|
1976
|
|
|
1977
|
WWidget *parentWidget = widgetForIndex(parent);
|
|
1978
|
|
|
1979
|
bool renderedRowsChange = isExpandedRecursive(parent);
|
|
1980
|
|
|
1981
|
if (parentWidget) {
|
|
1982
|
WTreeViewNode *parentNode = dynamic_cast<WTreeViewNode *>(parentWidget);
|
|
1983
|
|
|
1984
|
if (parentNode) {
|
|
1985
|
if (parentNode->childrenLoaded()) {
|
|
1986
|
WWidget *startWidget = nullptr;
|
|
1987
|
|
|
1988
|
/*
|
|
1989
|
* First we decide between inserting in the top spacer, bottom spacer
|
|
1990
|
* and in actually rendered nodes.
|
|
1991
|
*/
|
|
1992
|
if (end < model()->rowCount(parent) - 1)
|
|
1993
|
startWidget = parentNode->widgetForModelRow(start);
|
|
1994
|
else if (parentNode->bottomSpacerHeight() != 0)
|
|
1995
|
startWidget = parentNode->bottomSpacer();
|
|
1996
|
|
|
1997
|
parentNode->adjustChildrenHeight(count);
|
|
1998
|
parentNode->shiftModelIndexes(start, count);
|
|
1999
|
|
|
2000
|
if (startWidget && startWidget == parentNode->topSpacer()) {
|
|
2001
|
parentNode->addTopSpacerHeight(count);
|
|
2002
|
if (renderedRowsChange)
|
|
2003
|
renderedRowsChanged(renderedRow(model()->index(start, 0, parent),
|
|
2004
|
parentNode->topSpacer(),
|
|
2005
|
renderLowerBound(),
|
|
2006
|
renderUpperBound()),
|
|
2007
|
count);
|
|
2008
|
|
|
2009
|
} else if (startWidget && startWidget == parentNode->bottomSpacer()) {
|
|
2010
|
parentNode->addBottomSpacerHeight(count);
|
|
2011
|
if (renderedRowsChange)
|
|
2012
|
renderedRowsChanged(renderedRow(model()->index(start, 0, parent),
|
|
2013
|
parentNode->bottomSpacer(),
|
|
2014
|
renderLowerBound(),
|
|
2015
|
renderUpperBound()),
|
|
2016
|
count);
|
|
2017
|
} else {
|
|
2018
|
int maxRenderHeight
|
|
2019
|
= firstRenderedRow_ + std::max(validRowCount_, viewportHeight_)
|
|
2020
|
- parentNode->renderedRow() - parentNode->topSpacerHeight();
|
|
2021
|
|
|
2022
|
int containerIndex = startWidget ? parentNode->childContainer()
|
|
2023
|
->indexOf(startWidget) : parentNode->childContainer()->count();
|
|
2024
|
|
|
2025
|
int parentRowCount = model()->rowCount(parent);
|
|
2026
|
|
|
2027
|
int nodesToAdd = std::max(0, std::min(count, maxRenderHeight));
|
|
2028
|
|
|
2029
|
WTreeViewNode *first = nullptr;
|
|
2030
|
for (int i = 0; i < nodesToAdd; ++i) {
|
|
2031
|
std::unique_ptr<WTreeViewNode> n
|
|
2032
|
(new WTreeViewNode(this, model()->index(start + i, 0, parent),
|
|
2033
|
-1, start + i == parentRowCount - 1,
|
|
2034
|
parentNode));
|
|
2035
|
if (!first)
|
|
2036
|
first = n.get();
|
|
2037
|
|
|
2038
|
parentNode->childContainer()->insertWidget(containerIndex + i,
|
|
2039
|
std::move(n));
|
|
2040
|
|
|
2041
|
if (renderedRowsChange)
|
|
2042
|
++validRowCount_;
|
|
2043
|
|
|
2044
|
}
|
|
2045
|
|
|
2046
|
if (nodesToAdd < count) {
|
|
2047
|
parentNode->addBottomSpacerHeight(count - nodesToAdd);
|
|
2048
|
|
|
2049
|
// +1 for bottom spacer
|
|
2050
|
int targetSize = containerIndex + nodesToAdd + 1;
|
|
2051
|
|
|
2052
|
int extraBottomSpacer = 0;
|
|
2053
|
while (parentNode->childContainer()->count() > targetSize) {
|
|
2054
|
WTreeViewNode *n
|
|
2055
|
= dynamic_cast<WTreeViewNode *>(parentNode->childContainer()
|
|
2056
|
->widget(targetSize - 1));
|
|
2057
|
assert(n);
|
|
2058
|
extraBottomSpacer += n->renderedHeight();
|
|
2059
|
|
|
2060
|
if (renderedRowsChange)
|
|
2061
|
validRowCount_ -= n->renderedHeight();
|
|
2062
|
|
|
2063
|
n->removeFromParent();
|
|
2064
|
}
|
|
2065
|
|
|
2066
|
if (extraBottomSpacer)
|
|
2067
|
parentNode->addBottomSpacerHeight(extraBottomSpacer);
|
|
2068
|
|
|
2069
|
parentNode->normalizeSpacers();
|
|
2070
|
}
|
|
2071
|
|
|
2072
|
if (first && renderedRowsChange)
|
|
2073
|
renderedRowsChanged(first->renderedRow(renderLowerBound(),
|
|
2074
|
renderUpperBound()),
|
|
2075
|
nodesToAdd);
|
|
2076
|
|
|
2077
|
// Update graphics if the last node has changed, i.e. if we are
|
|
2078
|
// adding rows at the back
|
|
2079
|
if (end == model()->rowCount(parent) - 1 && start >= 1) {
|
|
2080
|
WTreeViewNode *n = dynamic_cast<WTreeViewNode *>
|
|
2081
|
(parentNode->widgetForModelRow(start - 1));
|
|
2082
|
|
|
2083
|
if (n)
|
|
2084
|
n->updateGraphics(false, !model()->hasChildren(n->modelIndex()));
|
|
2085
|
}
|
|
2086
|
}
|
|
2087
|
} /* else:
|
|
2088
|
children not loaded -- so we do not need to bother
|
|
2089
|
*/
|
|
2090
|
|
|
2091
|
// Update graphics for parent when first children have een added
|
|
2092
|
if (model()->rowCount(parent) == count)
|
|
2093
|
parentNode->updateGraphics(parentNode->isLast(), false);
|
|
2094
|
} else {
|
|
2095
|
if (isExpanded(parent)) {
|
|
2096
|
RowSpacer *s = dynamic_cast<RowSpacer *>(parentWidget);
|
|
2097
|
|
|
2098
|
s->setRows(s->rows() + count);
|
|
2099
|
s->node()->adjustChildrenHeight(count);
|
|
2100
|
|
|
2101
|
if (renderedRowsChange)
|
|
2102
|
renderedRowsChanged
|
|
2103
|
(renderedRow(model()->index(start, 0, parent), s,
|
|
2104
|
renderLowerBound(), renderUpperBound()),
|
|
2105
|
count);
|
|
2106
|
}
|
|
2107
|
}
|
|
2108
|
} else {
|
|
2109
|
/*
|
|
2110
|
* parentWidget is 0: it means it is not even part of any spacer.
|
|
2111
|
*/
|
|
2112
|
}
|
|
2113
|
}
|
|
2114
|
|
|
2115
|
void WTreeView::modelRowsAboutToBeRemoved(const WModelIndex& parent,
|
|
2116
|
int start, int end)
|
|
2117
|
{
|
|
2118
|
int count = end - start + 1;
|
|
2119
|
|
|
2120
|
bool renderedRowsChange = isExpandedRecursive(parent);
|
|
2121
|
|
|
2122
|
if (renderState_ != RenderState::NeedRerender &&
|
|
2123
|
renderState_ != RenderState::NeedRerenderData) {
|
|
2124
|
firstRemovedRow_ = -1;
|
|
2125
|
removedHeight_ = 0;
|
|
2126
|
|
|
2127
|
WWidget *parentWidget = widgetForIndex(parent);
|
|
2128
|
|
|
2129
|
if (parentWidget) {
|
|
2130
|
WTreeViewNode *parentNode = dynamic_cast<WTreeViewNode *>(parentWidget);
|
|
2131
|
|
|
2132
|
if (parentNode) {
|
|
2133
|
if (parentNode->childrenLoaded()) {
|
|
2134
|
for (int i = end; i >= start; --i) {
|
|
2135
|
WWidget *w = parentNode->widgetForModelRow(i);
|
|
2136
|
assert(w);
|
|
2137
|
|
|
2138
|
RowSpacer *s = dynamic_cast<RowSpacer *>(w);
|
|
2139
|
if (s) {
|
|
2140
|
WModelIndex childIndex = model()->index(i, 0, parent);
|
|
2141
|
|
|
2142
|
if (i == start && renderedRowsChange)
|
|
2143
|
firstRemovedRow_ = renderedRow(childIndex, w);
|
|
2144
|
|
|
2145
|
int childHeight = subTreeHeight(childIndex);
|
|
2146
|
|
|
2147
|
if (renderedRowsChange)
|
|
2148
|
removedHeight_ += childHeight;
|
|
2149
|
|
|
2150
|
s->setRows(s->rows() - childHeight);
|
|
2151
|
} else {
|
|
2152
|
WTreeViewNode *node = dynamic_cast<WTreeViewNode *>(w);
|
|
2153
|
|
|
2154
|
if (renderedRowsChange) {
|
|
2155
|
if (i == start)
|
|
2156
|
firstRemovedRow_ = node->renderedRow();
|
|
2157
|
|
|
2158
|
removedHeight_ += node->renderedHeight();
|
|
2159
|
}
|
|
2160
|
|
|
2161
|
node->removeFromParent();
|
|
2162
|
}
|
|
2163
|
}
|
|
2164
|
} /* else:
|
|
2165
|
children not loaded -- so we do not need to bother
|
|
2166
|
*/
|
|
2167
|
} else {
|
|
2168
|
/*
|
|
2169
|
* Only if the parent is in fact expanded, the spacer reduces
|
|
2170
|
* in size
|
|
2171
|
*/
|
|
2172
|
if (isExpanded(parent)) {
|
|
2173
|
RowSpacer *s = dynamic_cast<RowSpacer *>(parentWidget);
|
|
2174
|
|
|
2175
|
for (int i = start; i <= end; ++i) {
|
|
2176
|
WModelIndex childIndex = model()->index(i, 0, parent);
|
|
2177
|
int childHeight = subTreeHeight(childIndex);
|
|
2178
|
|
|
2179
|
if (renderedRowsChange) {
|
|
2180
|
removedHeight_ += childHeight;
|
|
2181
|
|
|
2182
|
if (i == start)
|
|
2183
|
firstRemovedRow_ = renderedRow(childIndex, s);
|
|
2184
|
}
|
|
2185
|
}
|
|
2186
|
}
|
|
2187
|
}
|
|
2188
|
} else {
|
|
2189
|
/*
|
|
2190
|
parentWidget is 0: it means it is not even part of any spacer.
|
|
2191
|
*/
|
|
2192
|
}
|
|
2193
|
}
|
|
2194
|
|
|
2195
|
shiftModelIndexes(parent, start, -count);
|
|
2196
|
}
|
|
2197
|
|
|
2198
|
void WTreeView::modelRowsRemoved(const WModelIndex& parent,
|
|
2199
|
int start, int end)
|
|
2200
|
{
|
|
2201
|
int count = end - start + 1;
|
|
2202
|
|
|
2203
|
if (renderState_ != RenderState::NeedRerender &&
|
|
2204
|
renderState_ != RenderState::NeedRerenderData) {
|
|
2205
|
WWidget *parentWidget = widgetForIndex(parent);
|
|
2206
|
|
|
2207
|
if (parentWidget) {
|
|
2208
|
WTreeViewNode *parentNode = dynamic_cast<WTreeViewNode *>(parentWidget);
|
|
2209
|
|
|
2210
|
if (parentNode) {
|
|
2211
|
if (parentNode->childrenLoaded()) {
|
|
2212
|
parentNode->normalizeSpacers();
|
|
2213
|
parentNode->adjustChildrenHeight(-removedHeight_);
|
|
2214
|
parentNode->shiftModelIndexes(start, -count);
|
|
2215
|
|
|
2216
|
// Update graphics for last node in parent, if we are removing rows
|
|
2217
|
// at the back. This is not affected by widgetForModelRow() returning
|
|
2218
|
// accurate information of rows just deleted and indexes not yet
|
|
2219
|
// shifted
|
|
2220
|
if (end >= model()->rowCount(parent) && start >= 1) {
|
|
2221
|
WTreeViewNode *n = dynamic_cast<WTreeViewNode *>
|
|
2222
|
(parentNode->widgetForModelRow(start - 1));
|
|
2223
|
|
|
2224
|
if (n)
|
|
2225
|
n->updateGraphics(true, !model()->hasChildren(n->modelIndex()));
|
|
2226
|
}
|
|
2227
|
} /* else:
|
|
2228
|
children not loaded -- so we do not need to bother
|
|
2229
|
*/
|
|
2230
|
|
|
2231
|
// Update graphics for parent when all rows have been removed
|
|
2232
|
if (model()->rowCount(parent) == 0 && count != 0)
|
|
2233
|
parentNode->updateGraphics(parentNode->isLast(), true);
|
|
2234
|
} else {
|
|
2235
|
/*
|
|
2236
|
* Only if the parent is in fact expanded, the spacer reduces
|
|
2237
|
* in size
|
|
2238
|
*/
|
|
2239
|
if (isExpanded(parent)) {
|
|
2240
|
RowSpacer *s = dynamic_cast<RowSpacer *>(parentWidget);
|
|
2241
|
WTreeViewNode *node = s->node();
|
|
2242
|
s->setRows(s->rows() - removedHeight_); // could delete s!
|
|
2243
|
node->adjustChildrenHeight(-removedHeight_);
|
|
2244
|
}
|
|
2245
|
}
|
|
2246
|
} else {
|
|
2247
|
/*
|
|
2248
|
parentWidget is 0: it means it is not even part of any spacer.
|
|
2249
|
*/
|
|
2250
|
}
|
|
2251
|
}
|
|
2252
|
|
|
2253
|
if (renderState_ != RenderState::NeedRerender &&
|
|
2254
|
renderState_ != RenderState::NeedRerenderData)
|
|
2255
|
renderedRowsChanged(firstRemovedRow_, -removedHeight_);
|
|
2256
|
}
|
|
2257
|
|
|
2258
|
void WTreeView::modelDataChanged(const WModelIndex& topLeft,
|
|
2259
|
const WModelIndex& bottomRight)
|
|
2260
|
{
|
|
2261
|
if (renderState_ == RenderState::NeedRerender ||
|
|
2262
|
renderState_ == RenderState::NeedRerenderData)
|
|
2263
|
return;
|
|
2264
|
|
|
2265
|
WModelIndex parent = topLeft.parent();
|
|
2266
|
WTreeViewNode *parentNode = nodeForIndex(parent);
|
|
2267
|
|
|
2268
|
if (parentNode && parentNode->childrenLoaded()) {
|
|
2269
|
for (int r = topLeft.row(); r <= bottomRight.row(); ++r) {
|
|
2270
|
WModelIndex index = model()->index(r, 0, parent);
|
|
2271
|
|
|
2272
|
WTreeViewNode *n = nodeForIndex(index);
|
|
2273
|
|
|
2274
|
if (n)
|
|
2275
|
n->update(topLeft.column(), bottomRight.column());
|
|
2276
|
}
|
|
2277
|
}
|
|
2278
|
}
|
|
2279
|
|
|
2280
|
WWidget *WTreeView::headerWidget(int column, bool contentsOnly)
|
|
2281
|
{
|
|
2282
|
WWidget *result = nullptr;
|
|
2283
|
|
|
2284
|
if (headers_ && headers_->count() > 0) {
|
|
2285
|
if (column == 0)
|
|
2286
|
result = headers_->widget(headers_->count() - 1);
|
|
2287
|
else
|
|
2288
|
result = headerRow()->widget(column - 1);
|
|
2289
|
}
|
|
2290
|
|
|
2291
|
if (result && contentsOnly)
|
|
2292
|
return result->find("contents");
|
|
2293
|
else
|
|
2294
|
return result;
|
|
2295
|
}
|
|
2296
|
|
|
2297
|
WContainerWidget *WTreeView::headerRow()
|
|
2298
|
{
|
|
2299
|
WContainerWidget *row
|
|
2300
|
= dynamic_cast<WContainerWidget *>(headers_->widget(0));
|
|
2301
|
if (rowHeaderCount())
|
|
2302
|
row = dynamic_cast<WContainerWidget *>(row->widget(0));
|
|
2303
|
return row;
|
|
2304
|
}
|
|
2305
|
|
|
2306
|
int WTreeView::renderedRow(const WModelIndex& index, WWidget *w,
|
|
2307
|
int lowerBound, int upperBound)
|
|
2308
|
{
|
|
2309
|
WTreeViewNode *node = dynamic_cast<WTreeViewNode *>(w);
|
|
2310
|
|
|
2311
|
if (node)
|
|
2312
|
return node->renderedRow(lowerBound, upperBound);
|
|
2313
|
else {
|
|
2314
|
RowSpacer *s = dynamic_cast<RowSpacer *>(w);
|
|
2315
|
|
|
2316
|
int result = s->renderedRow(0, upperBound);
|
|
2317
|
|
|
2318
|
if (result > upperBound)
|
|
2319
|
return result;
|
|
2320
|
else if (result + s->node()->renderedHeight() < lowerBound)
|
|
2321
|
return result;
|
|
2322
|
else
|
|
2323
|
return result + getIndexRow(index, s->node()->modelIndex(),
|
|
2324
|
lowerBound - result, upperBound - result);
|
|
2325
|
}
|
|
2326
|
}
|
|
2327
|
|
|
2328
|
// TF: This function returns the zero-based numerical index of the table row
|
|
2329
|
// for 'child' under 'ancestor', given that the parent of 'child' is expanded and
|
|
2330
|
// using 'ancestor' as the (invisible) root.
|
|
2331
|
int WTreeView::getIndexRow(const WModelIndex& child,
|
|
2332
|
const WModelIndex& ancestor,
|
|
2333
|
int lowerBound, int upperBound) const
|
|
2334
|
{
|
|
2335
|
if (!child.isValid() || child == ancestor)
|
|
2336
|
return 0;
|
|
2337
|
else {
|
|
2338
|
WModelIndex parent = child.parent();
|
|
2339
|
|
|
2340
|
int result = 0;
|
|
2341
|
for (int r = 0; r < child.row(); ++r) {
|
|
2342
|
result += subTreeHeight(model()->index(r, 0, parent), 0,
|
|
2343
|
upperBound - result);
|
|
2344
|
if (result >= upperBound)
|
|
2345
|
return result;
|
|
2346
|
}
|
|
2347
|
|
|
2348
|
// TF: Adjustment with the position of parent within its siblings,
|
|
2349
|
// only if parent is not the (invisible) root...
|
|
2350
|
// getIndexRow() will deliver strange results anyway, if the
|
|
2351
|
// parent of the initial child was not expanded!
|
|
2352
|
if ( parent != ancestor )
|
|
2353
|
result += 1 + getIndexRow( parent, ancestor,
|
|
2354
|
lowerBound - result, upperBound - result );
|
|
2355
|
return result;
|
|
2356
|
// return result + getIndexRow(parent, ancestor,
|
|
2357
|
// lowerBound - result, upperBound - result);
|
|
2358
|
}
|
|
2359
|
}
|
|
2360
|
|
|
2361
|
int WTreeView::renderLowerBound() const
|
|
2362
|
{
|
|
2363
|
return firstRenderedRow_;
|
|
2364
|
}
|
|
2365
|
|
|
2366
|
int WTreeView::renderUpperBound() const
|
|
2367
|
{
|
|
2368
|
return firstRenderedRow_ + validRowCount_;
|
|
2369
|
}
|
|
2370
|
|
|
2371
|
void WTreeView::renderedRowsChanged(int row, int count)
|
|
2372
|
{
|
|
2373
|
if (count < 0
|
|
2374
|
&& row - count >= firstRenderedRow_
|
|
2375
|
&& row < firstRenderedRow_ + validRowCount_)
|
|
2376
|
validRowCount_ += std::max(firstRenderedRow_ - row + count, count);
|
|
2377
|
|
|
2378
|
if (row < firstRenderedRow_)
|
|
2379
|
firstRenderedRow_ += count;
|
|
2380
|
|
|
2381
|
scheduleRerender(RenderState::NeedAdjustViewPort);
|
|
2382
|
}
|
|
2383
|
|
|
2384
|
void WTreeView::adjustToViewport(WTreeViewNode *changed)
|
|
2385
|
{
|
|
2386
|
//assert(rootNode_->rowCount() == 1);
|
|
2387
|
|
|
2388
|
firstRenderedRow_ = std::max(0, firstRenderedRow_);
|
|
2389
|
validRowCount_
|
|
2390
|
= std::max(0, std::min(validRowCount_,
|
|
2391
|
rootNode_->renderedHeight() - firstRenderedRow_));
|
|
2392
|
|
|
2393
|
int viewportBottom = std::min(rootNode_->renderedHeight(),
|
|
2394
|
viewportTop_ + viewportHeight_);
|
|
2395
|
int lastValidRow = firstRenderedRow_ + validRowCount_;
|
|
2396
|
|
|
2397
|
bool renderMore =
|
|
2398
|
(std::max(0,
|
|
2399
|
viewportTop_ - viewportHeight_) < firstRenderedRow_)
|
|
2400
|
|| (std::min(rootNode_->renderedHeight(),
|
|
2401
|
viewportBottom + viewportHeight_) > lastValidRow);
|
|
2402
|
|
|
2403
|
bool pruneFirst = false;
|
|
2404
|
|
|
2405
|
//assert(rootNode_->rowCount() == 1);
|
|
2406
|
|
|
2407
|
if (renderMore) {
|
|
2408
|
int newFirstRenderedRow = std::min(firstRenderedRow_,
|
|
2409
|
calcOptimalFirstRenderedRow());
|
|
2410
|
int newLastValidRow = std::max(lastValidRow,
|
|
2411
|
std::min(rootNode_->renderedHeight(),
|
|
2412
|
calcOptimalFirstRenderedRow()
|
|
2413
|
+ calcOptimalRenderedRowCount()));
|
|
2414
|
//assert(rootNode_->rowCount() == 1);
|
|
2415
|
|
|
2416
|
int newValidRowCount = newLastValidRow - newFirstRenderedRow;
|
|
2417
|
|
|
2418
|
int newRows = std::max(0, firstRenderedRow_ - newFirstRenderedRow)
|
|
2419
|
+ std::max(0, newLastValidRow - lastValidRow);
|
|
2420
|
|
|
2421
|
const int pruneFactor
|
|
2422
|
= WApplication::instance()->environment().ajax() ? 9 : 1;
|
|
2423
|
|
|
2424
|
if (nodeLoad_ + newRows > pruneFactor * viewportHeight_) {
|
|
2425
|
pruneFirst = true;
|
|
2426
|
} else
|
|
2427
|
if (newFirstRenderedRow < firstRenderedRow_
|
|
2428
|
|| newLastValidRow > lastValidRow) {
|
|
2429
|
firstRenderedRow_ = newFirstRenderedRow;
|
|
2430
|
validRowCount_ = newValidRowCount;
|
|
2431
|
adjustRenderedNode(rootNode_, 0);
|
|
2432
|
}
|
|
2433
|
}
|
|
2434
|
|
|
2435
|
const int pruneFactor
|
|
2436
|
= WApplication::instance()->environment().ajax() ? 5 : 1;
|
|
2437
|
|
|
2438
|
if (pruneFirst || nodeLoad_ > pruneFactor * viewportHeight_) {
|
|
2439
|
firstRenderedRow_ = calcOptimalFirstRenderedRow();
|
|
2440
|
validRowCount_ = calcOptimalRenderedRowCount();
|
|
2441
|
|
|
2442
|
pruneNodes(rootNode_, 0);
|
|
2443
|
|
|
2444
|
if (pruneFirst && nodeLoad_ < calcOptimalRenderedRowCount()) {
|
|
2445
|
adjustRenderedNode(rootNode_, 0);
|
|
2446
|
}
|
|
2447
|
}
|
|
2448
|
|
|
2449
|
//assert(rootNode_->rowCount() == 1);
|
|
2450
|
}
|
|
2451
|
|
|
2452
|
int WTreeView::adjustRenderedNode(WTreeViewNode *node, int theNodeRow)
|
|
2453
|
{
|
|
2454
|
//assert(rootNode_->rowCount() == 1);
|
|
2455
|
|
|
2456
|
WModelIndex index = node->modelIndex();
|
|
2457
|
|
|
2458
|
if (index != rootIndex())
|
|
2459
|
++theNodeRow;
|
|
2460
|
|
|
2461
|
if (!isExpanded(index) && !node->childrenLoaded())
|
|
2462
|
return theNodeRow;
|
|
2463
|
|
|
2464
|
int nodeRow = theNodeRow;
|
|
2465
|
|
|
2466
|
if (node->isAllSpacer()) {
|
|
2467
|
if (nodeRow + node->childrenHeight() > firstRenderedRow_
|
|
2468
|
&& nodeRow < firstRenderedRow_ + validRowCount_) {
|
|
2469
|
// replace spacer by some nodes
|
|
2470
|
int childCount = model()->rowCount(index);
|
|
2471
|
|
|
2472
|
bool firstNode = true;
|
|
2473
|
int rowStubs = 0;
|
|
2474
|
|
|
2475
|
for (int i = 0; i < childCount; ++i) {
|
|
2476
|
WModelIndex childIndex = model()->index(i, 0, index);
|
|
2477
|
|
|
2478
|
int childHeight = subTreeHeight(childIndex);
|
|
2479
|
|
|
2480
|
if (nodeRow <= firstRenderedRow_ + validRowCount_
|
|
2481
|
&& nodeRow + childHeight > firstRenderedRow_) {
|
|
2482
|
if (firstNode) {
|
|
2483
|
firstNode = false;
|
|
2484
|
node->setTopSpacerHeight(rowStubs);
|
|
2485
|
rowStubs = 0;
|
|
2486
|
}
|
|
2487
|
|
|
2488
|
// assert(rootNode_->rowCount() == 1);
|
|
2489
|
|
|
2490
|
WTreeViewNode *n = node->childContainer()->addWidget
|
|
2491
|
(cpp14::make_unique<WTreeViewNode>
|
|
2492
|
(this, childIndex, childHeight - 1, i == childCount - 1, node));
|
|
2493
|
|
|
2494
|
int nestedNodeRow = nodeRow;
|
|
2495
|
nestedNodeRow = adjustRenderedNode(n, nestedNodeRow);
|
|
2496
|
assert(nestedNodeRow == nodeRow + childHeight);
|
|
2497
|
} else {
|
|
2498
|
rowStubs += childHeight;
|
|
2499
|
}
|
|
2500
|
nodeRow += childHeight;
|
|
2501
|
}
|
|
2502
|
node->setBottomSpacerHeight(rowStubs);
|
|
2503
|
} else
|
|
2504
|
nodeRow += node->childrenHeight();
|
|
2505
|
} else {
|
|
2506
|
// get a reference to the first existing child, which we'll recursively
|
|
2507
|
// adjust later
|
|
2508
|
int topSpacerHeight = node->topSpacerHeight();
|
|
2509
|
int nestedNodeRow = nodeRow + topSpacerHeight;
|
|
2510
|
WTreeViewNode *child = node->nextChildNode(nullptr);
|
|
2511
|
|
|
2512
|
int childCount = model()->rowCount(index);
|
|
2513
|
while (topSpacerHeight != 0
|
|
2514
|
&& nodeRow + topSpacerHeight > firstRenderedRow_) {
|
|
2515
|
// eat from top spacer and replace with actual nodes
|
|
2516
|
WTreeViewNode *n
|
|
2517
|
= dynamic_cast<WTreeViewNode *>(node->childContainer()->widget(1));
|
|
2518
|
|
|
2519
|
assert(n);
|
|
2520
|
|
|
2521
|
WModelIndex childIndex
|
|
2522
|
= model()->index(n->modelIndex().row() - 1, 0, index);
|
|
2523
|
|
|
2524
|
assert(childIndex.isValid());
|
|
2525
|
|
|
2526
|
int childHeight = subTreeHeight(childIndex);
|
|
2527
|
|
|
2528
|
{
|
|
2529
|
std::unique_ptr<WTreeViewNode> nn
|
|
2530
|
(n = new WTreeViewNode(this, childIndex, childHeight - 1,
|
|
2531
|
childIndex.row() == childCount - 1, node));
|
|
2532
|
node->childContainer()->insertWidget(1, std::move(nn));
|
|
2533
|
}
|
|
2534
|
|
|
2535
|
nestedNodeRow = nodeRow + topSpacerHeight - childHeight;
|
|
2536
|
nestedNodeRow = adjustRenderedNode(n, nestedNodeRow);
|
|
2537
|
assert(nestedNodeRow == nodeRow + topSpacerHeight);
|
|
2538
|
|
|
2539
|
topSpacerHeight -= childHeight;
|
|
2540
|
node->addTopSpacerHeight(-childHeight);
|
|
2541
|
}
|
|
2542
|
|
|
2543
|
for (; child; child=node->nextChildNode(child))
|
|
2544
|
nestedNodeRow = adjustRenderedNode(child, nestedNodeRow);
|
|
2545
|
|
|
2546
|
int nch = node->childrenHeight();
|
|
2547
|
int bottomSpacerStart = nch - node->bottomSpacerHeight();
|
|
2548
|
|
|
2549
|
while (node->bottomSpacerHeight() != 0
|
|
2550
|
&& nodeRow + bottomSpacerStart
|
|
2551
|
<= firstRenderedRow_ + validRowCount_){
|
|
2552
|
// eat from bottom spacer and replace with actual nodes
|
|
2553
|
int lastNodeIndex = node->childContainer()->count() - 2;
|
|
2554
|
WTreeViewNode *n = dynamic_cast<WTreeViewNode *>
|
|
2555
|
(node->childContainer()->widget(lastNodeIndex));
|
|
2556
|
|
|
2557
|
assert(n);
|
|
2558
|
|
|
2559
|
WModelIndex childIndex
|
|
2560
|
= model()->index(n->modelIndex().row() + 1, 0, index);
|
|
2561
|
|
|
2562
|
assert (childIndex.isValid());
|
|
2563
|
|
|
2564
|
int childHeight = subTreeHeight(childIndex);
|
|
2565
|
|
|
2566
|
{
|
|
2567
|
std::unique_ptr<WTreeViewNode> nn
|
|
2568
|
(n = new WTreeViewNode(this, childIndex, childHeight - 1,
|
|
2569
|
childIndex.row() == childCount - 1, node));
|
|
2570
|
node->childContainer()->insertWidget(lastNodeIndex + 1, std::move(nn));
|
|
2571
|
}
|
|
2572
|
|
|
2573
|
nestedNodeRow = nodeRow + bottomSpacerStart;
|
|
2574
|
nestedNodeRow = adjustRenderedNode(n, nestedNodeRow);
|
|
2575
|
assert(nestedNodeRow == nodeRow + bottomSpacerStart + childHeight);
|
|
2576
|
|
|
2577
|
node->addBottomSpacerHeight(-childHeight);
|
|
2578
|
bottomSpacerStart += childHeight;
|
|
2579
|
}
|
|
2580
|
|
|
2581
|
nodeRow += nch;
|
|
2582
|
}
|
|
2583
|
|
|
2584
|
// assert(rootNode_->rowCount() == 1);
|
|
2585
|
|
|
2586
|
// if a node has children loaded but is not currently expanded, then still
|
|
2587
|
// adjust it, but do not return the calculated nodeRow for it.
|
|
2588
|
return isExpanded(index) ? nodeRow : theNodeRow;
|
|
2589
|
}
|
|
2590
|
|
|
2591
|
int WTreeView::pruneNodes(WTreeViewNode *node, int nodeRow)
|
|
2592
|
{
|
|
2593
|
// remove unneeded nodes: nodes within collapsed tree nodes, and nodes
|
|
2594
|
// beyond the optimal bounds
|
|
2595
|
WModelIndex index = node->modelIndex();
|
|
2596
|
|
|
2597
|
++nodeRow;
|
|
2598
|
|
|
2599
|
if (isExpanded(index)) {
|
|
2600
|
// prune away nodes until we are within the rendered region
|
|
2601
|
nodeRow += node->topSpacerHeight();
|
|
2602
|
|
|
2603
|
bool done = false;
|
|
2604
|
WTreeViewNode *c = nullptr;
|
|
2605
|
|
|
2606
|
for (; nodeRow < firstRenderedRow_; ) {
|
|
2607
|
c = node->nextChildNode(nullptr);
|
|
2608
|
if (!c) {
|
|
2609
|
done = true;
|
|
2610
|
break;
|
|
2611
|
}
|
|
2612
|
|
|
2613
|
if (nodeRow + c->renderedHeight() < firstRenderedRow_) {
|
|
2614
|
node->addTopSpacerHeight(c->renderedHeight());
|
|
2615
|
nodeRow += c->renderedHeight();
|
|
2616
|
c->removeFromParent();
|
|
2617
|
c = nullptr;
|
|
2618
|
} else {
|
|
2619
|
nodeRow = pruneNodes(c, nodeRow);
|
|
2620
|
break;
|
|
2621
|
}
|
|
2622
|
}
|
|
2623
|
|
|
2624
|
if (!done) {
|
|
2625
|
for (; nodeRow <= firstRenderedRow_ + validRowCount_; ) {
|
|
2626
|
c = node->nextChildNode(c);
|
|
2627
|
|
|
2628
|
if (!c) {
|
|
2629
|
done = true;
|
|
2630
|
break;
|
|
2631
|
}
|
|
2632
|
|
|
2633
|
nodeRow = pruneNodes(c, nodeRow);
|
|
2634
|
}
|
|
2635
|
}
|
|
2636
|
|
|
2637
|
if (!done) {
|
|
2638
|
c = node->nextChildNode(c);
|
|
2639
|
|
|
2640
|
if (c != nullptr) {
|
|
2641
|
int i = node->childContainer()->indexOf(c);
|
|
2642
|
int prunedHeight = 0;
|
|
2643
|
|
|
2644
|
while (c && i < node->childContainer()->count()) {
|
|
2645
|
c = dynamic_cast<WTreeViewNode *> (node->childContainer()->widget(i));
|
|
2646
|
if (c) {
|
|
2647
|
prunedHeight += c->renderedHeight();
|
|
2648
|
c->removeFromParent();
|
|
2649
|
c = nullptr;
|
|
2650
|
}
|
|
2651
|
}
|
|
2652
|
|
|
2653
|
node->addBottomSpacerHeight(prunedHeight);
|
|
2654
|
}
|
|
2655
|
}
|
|
2656
|
|
|
2657
|
nodeRow += node->bottomSpacerHeight();
|
|
2658
|
|
|
2659
|
node->normalizeSpacers();
|
|
2660
|
|
|
2661
|
} else
|
|
2662
|
if (node->childrenLoaded()) {
|
|
2663
|
int prunedHeight = 0;
|
|
2664
|
for (;;) {
|
|
2665
|
WTreeViewNode *c = node->nextChildNode(nullptr);
|
|
2666
|
if (!c)
|
|
2667
|
break;
|
|
2668
|
|
|
2669
|
prunedHeight += c->renderedHeight();
|
|
2670
|
c->removeFromParent();
|
|
2671
|
c = nullptr;
|
|
2672
|
}
|
|
2673
|
|
|
2674
|
node->addBottomSpacerHeight(prunedHeight);
|
|
2675
|
node->normalizeSpacers();
|
|
2676
|
}
|
|
2677
|
|
|
2678
|
return nodeRow;
|
|
2679
|
}
|
|
2680
|
|
|
2681
|
int WTreeView::
|
|
2682
|
shiftModelIndexes(const WModelIndex& parent, int start, int count,
|
|
2683
|
const std::shared_ptr<WAbstractItemModel>& model,
|
|
2684
|
WModelIndexSet& set)
|
|
2685
|
{
|
|
2686
|
/*
|
|
2687
|
* handle the set of exanded model indexes:
|
|
2688
|
* - collect indexes in the same parent at lower rows that need to
|
|
2689
|
* be shifted
|
|
2690
|
* - if deleting, delete indexes that are within the range of deleted
|
|
2691
|
* rows
|
|
2692
|
*/
|
|
2693
|
std::vector<WModelIndex> toShift;
|
|
2694
|
std::vector<WModelIndex> toErase;
|
|
2695
|
|
|
2696
|
for (WModelIndexSet::iterator it
|
|
2697
|
= set.lower_bound(model->index(start, 0, parent)); it != set.end();) {
|
|
2698
|
#ifndef WT_TARGET_JAVA
|
|
2699
|
WModelIndexSet::iterator n = it;
|
|
2700
|
++n;
|
|
2701
|
#endif
|
|
2702
|
|
|
2703
|
WModelIndex i = *it;
|
|
2704
|
|
|
2705
|
WModelIndex p = i.parent();
|
|
2706
|
if (p != parent && !WModelIndex::isAncestor(p, parent))
|
|
2707
|
break;
|
|
2708
|
|
|
2709
|
if (p == parent) {
|
|
2710
|
toShift.push_back(i);
|
|
2711
|
toErase.push_back(i);
|
|
2712
|
} else if (count < 0) {
|
|
2713
|
// delete indexes that are about to be deleted, if they are within
|
|
2714
|
// the range of deleted indexes
|
|
2715
|
do {
|
|
2716
|
if (p.parent() == parent
|
|
2717
|
&& p.row() >= start
|
|
2718
|
&& p.row() < start - count) {
|
|
2719
|
toErase.push_back(i);
|
|
2720
|
break;
|
|
2721
|
} else
|
|
2722
|
p = p.parent();
|
|
2723
|
} while (p != parent);
|
|
2724
|
}
|
|
2725
|
|
|
2726
|
#ifndef WT_TARGET_JAVA
|
|
2727
|
it = n;
|
|
2728
|
#endif
|
|
2729
|
}
|
|
2730
|
|
|
2731
|
for (unsigned i = 0; i < toErase.size(); ++i)
|
|
2732
|
set.erase(toErase[i]);
|
|
2733
|
|
|
2734
|
int removed = 0;
|
|
2735
|
for (unsigned i = 0; i < toShift.size(); ++i) {
|
|
2736
|
// for negative count: only reinsert model indexes that need
|
|
2737
|
// not be removed (they are currently all removed)
|
|
2738
|
if (toShift[i].row() + count >= start) {
|
|
2739
|
WModelIndex newIndex = model->index(toShift[i].row() + count,
|
|
2740
|
toShift[i].column(), parent);
|
|
2741
|
set.insert(newIndex);
|
|
2742
|
} else
|
|
2743
|
++removed;
|
|
2744
|
}
|
|
2745
|
|
|
2746
|
return removed;
|
|
2747
|
}
|
|
2748
|
|
|
2749
|
void WTreeView::shiftModelIndexes(const WModelIndex& parent,
|
|
2750
|
int start, int count)
|
|
2751
|
{
|
|
2752
|
shiftModelIndexes(parent, start, count, model(), expandedSet_);
|
|
2753
|
|
|
2754
|
int removed = shiftModelIndexes(parent, start, count, model(),
|
|
2755
|
selectionModel()->selection_);
|
|
2756
|
|
|
2757
|
shiftEditorRows(parent, start, count, false);
|
|
2758
|
|
|
2759
|
if (removed)
|
|
2760
|
selectionChanged().emit();
|
|
2761
|
}
|
|
2762
|
|
|
2763
|
void WTreeView::modelLayoutAboutToBeChanged()
|
|
2764
|
{
|
|
2765
|
WModelIndex::encodeAsRawIndexes(expandedSet_);
|
|
2766
|
|
|
2767
|
WAbstractItemView::modelLayoutAboutToBeChanged();
|
|
2768
|
}
|
|
2769
|
|
|
2770
|
void WTreeView::modelLayoutChanged()
|
|
2771
|
{
|
|
2772
|
WAbstractItemView::modelLayoutChanged();
|
|
2773
|
|
|
2774
|
expandedSet_ = WModelIndex::decodeFromRawIndexes(expandedSet_);
|
|
2775
|
|
|
2776
|
renderedNodes_.clear();
|
|
2777
|
|
|
2778
|
pageChanged().emit();
|
|
2779
|
}
|
|
2780
|
|
|
2781
|
void WTreeView::addRenderedNode(WTreeViewNode *node)
|
|
2782
|
{
|
|
2783
|
renderedNodes_[node->modelIndex()] = node;
|
|
2784
|
++nodeLoad_;
|
|
2785
|
renderedNodesAdded_ = true;
|
|
2786
|
}
|
|
2787
|
|
|
2788
|
void WTreeView::removeRenderedNode(WTreeViewNode *node)
|
|
2789
|
{
|
|
2790
|
renderedNodes_.erase(node->modelIndex());
|
|
2791
|
--nodeLoad_;
|
|
2792
|
}
|
|
2793
|
|
|
2794
|
bool WTreeView::internalSelect(const WModelIndex& index, SelectionFlag option)
|
|
2795
|
{
|
|
2796
|
if (selectionBehavior() == SelectionBehavior::Rows &&
|
|
2797
|
index.column() != 0)
|
|
2798
|
return
|
|
2799
|
internalSelect(model()->index(index.row(), 0, index.parent()), option);
|
|
2800
|
|
|
2801
|
if (WAbstractItemView::internalSelect(index, option)) {
|
|
2802
|
WTreeViewNode *node = nodeForIndex(index);
|
|
2803
|
if (node)
|
|
2804
|
node->renderSelected(isSelected(index), index.column());
|
|
2805
|
|
|
2806
|
return true;
|
|
2807
|
} else
|
|
2808
|
return false;
|
|
2809
|
}
|
|
2810
|
|
|
2811
|
WTreeViewNode *WTreeView::nodeForIndex(const WModelIndex& index) const
|
|
2812
|
{
|
|
2813
|
if (index == rootIndex())
|
|
2814
|
return rootNode_;
|
|
2815
|
else {
|
|
2816
|
WModelIndex column0Index = index.column() == 0 ? index : model()->index(index.row(), 0, index.parent());
|
|
2817
|
NodeMap::const_iterator i = renderedNodes_.find(column0Index);
|
|
2818
|
return i != renderedNodes_.end() ? i->second : nullptr;
|
|
2819
|
}
|
|
2820
|
}
|
|
2821
|
|
|
2822
|
void WTreeView::selectRange(const WModelIndex& first, const WModelIndex& last)
|
|
2823
|
{
|
|
2824
|
WModelIndex index = first;
|
|
2825
|
for (;;) {
|
|
2826
|
for (int c = first.column(); c <= last.column(); ++c) {
|
|
2827
|
WModelIndex ic = model()->index(index.row(), c, index.parent());
|
|
2828
|
internalSelect(ic, SelectionFlag::Select);
|
|
2829
|
|
|
2830
|
if (ic == last)
|
|
2831
|
return;
|
|
2832
|
}
|
|
2833
|
|
|
2834
|
WModelIndex indexc0
|
|
2835
|
= index.column() == 0 ? index
|
|
2836
|
: model()->index(index.row(), 0, index.parent());
|
|
2837
|
|
|
2838
|
if (isExpanded(indexc0) && model()->hasChildren(indexc0))
|
|
2839
|
index = model()->index(0, first.column(), indexc0);
|
|
2840
|
else {
|
|
2841
|
for (;;) {
|
|
2842
|
// next row in parent, if one is available
|
|
2843
|
WModelIndex parent = index.parent();
|
|
2844
|
if (index.row() + 1 < model()->rowCount(parent)) {
|
|
2845
|
index = model()->index(index.row() + 1, first.column(), parent);
|
|
2846
|
break;
|
|
2847
|
} else
|
|
2848
|
// otherwise go up one level
|
|
2849
|
index = index.parent();
|
|
2850
|
}
|
|
2851
|
}
|
|
2852
|
}
|
|
2853
|
}
|
|
2854
|
|
|
2855
|
WAbstractItemView::ColumnInfo WTreeView::createColumnInfo(int column) const
|
|
2856
|
{
|
|
2857
|
ColumnInfo ci = WAbstractItemView::createColumnInfo(column);
|
|
2858
|
|
|
2859
|
if (column == 0) {
|
|
2860
|
// column 0 needs width auto, so we override the ci.styleRule with
|
|
2861
|
// a more specific rule. We also set the correct overflow attributes
|
|
2862
|
|
|
2863
|
ci.width = WLength::Auto;
|
|
2864
|
ci.styleRule->templateWidget()->resize(WLength::Auto, WLength::Auto);
|
|
2865
|
|
|
2866
|
if (c0StyleRule_) {
|
|
2867
|
WCssStyleSheet& styleSheet = wApp->styleSheet();
|
|
2868
|
c0StyleRule_->setSelector("#" + id() + " li ." + ci.styleClass());
|
|
2869
|
styleSheet.addRule(styleSheet.removeRule(c0StyleRule_)); // needed on rerender
|
|
2870
|
}
|
|
2871
|
}
|
|
2872
|
|
|
2873
|
return ci;
|
|
2874
|
}
|
|
2875
|
|
|
2876
|
void WTreeView::setCurrentPage(int page)
|
|
2877
|
{
|
|
2878
|
viewportTop_ = page * viewportHeight_;
|
|
2879
|
|
|
2880
|
contents_->setOffsets(-viewportTop_ * rowHeight().toPixels(), Side::Top);
|
|
2881
|
|
|
2882
|
pageChanged().emit();
|
|
2883
|
|
|
2884
|
scheduleRerender(RenderState::NeedAdjustViewPort);
|
|
2885
|
}
|
|
2886
|
|
|
2887
|
int WTreeView::currentPage() const
|
|
2888
|
{
|
|
2889
|
return viewportTop_ / viewportHeight_;
|
|
2890
|
}
|
|
2891
|
|
|
2892
|
int WTreeView::pageCount() const
|
|
2893
|
{
|
|
2894
|
if (rootNode_) {
|
|
2895
|
return (rootNode_->renderedHeight() - 1) / viewportHeight_ + 1;
|
|
2896
|
} else
|
|
2897
|
return 1;
|
|
2898
|
}
|
|
2899
|
|
|
2900
|
int WTreeView::pageSize() const
|
|
2901
|
{
|
|
2902
|
return viewportHeight_;
|
|
2903
|
}
|
|
2904
|
|
|
2905
|
void WTreeView::scrollTo(const WModelIndex& index, ScrollHint hint)
|
|
2906
|
{
|
|
2907
|
// TF: Numeric index of table row for 'index', given that 'index' is visible,
|
|
2908
|
// i.e. all of its parents are expanded.
|
|
2909
|
// (This should not be increased by 1! s. getIndexRow())
|
|
2910
|
int row = getIndexRow(index, rootIndex(), 0,
|
|
2911
|
std::numeric_limits<int>::max());
|
|
2912
|
// int row = getIndexRow(index, rootIndex(), 0,
|
|
2913
|
// std::numeric_limits<int>::max()) + 1;
|
|
2914
|
|
|
2915
|
WApplication *app = WApplication::instance();
|
|
2916
|
|
|
2917
|
if (app->environment().ajax()) {
|
|
2918
|
if (viewportHeight_ != UNKNOWN_VIEWPORT_HEIGHT) {
|
|
2919
|
// TF: If 'EnsureVisible' then scroll to bottom, if 'row' is below
|
|
2920
|
// the bottom visible entry, and scroll to top, if 'row' is above
|
|
2921
|
// the first visible entry (minimal scrolling).
|
|
2922
|
// 'viewportTop_' and 'viewportHeight_' may include partially visible rows!
|
|
2923
|
if (hint == ScrollHint::EnsureVisible) {
|
|
2924
|
if (viewportTop_ + viewportHeight_ <= row)
|
|
2925
|
hint = ScrollHint::PositionAtBottom;
|
|
2926
|
else if (row <= viewportTop_)
|
|
2927
|
hint = ScrollHint::PositionAtTop;
|
|
2928
|
}
|
|
2929
|
/*
|
|
2930
|
if (hint == ScrollHint::EnsureVisible) {
|
|
2931
|
if (viewportTop_ + viewportHeight_ < row)
|
|
2932
|
hint = ScrollHint::PositionAtTop;
|
|
2933
|
else if (row < viewportTop_)
|
|
2934
|
hint = ScrollHint::PositionAtBottom;
|
|
2935
|
}
|
|
2936
|
*/
|
|
2937
|
|
|
2938
|
// TF: Adjust viewport, if still required...
|
|
2939
|
if ( hint != ScrollHint::EnsureVisible ) {
|
|
2940
|
switch ( hint ) {
|
|
2941
|
case ScrollHint::PositionAtTop:
|
|
2942
|
viewportTop_ = row; break;
|
|
2943
|
case ScrollHint::PositionAtBottom:
|
|
2944
|
viewportTop_ = row - viewportHeight_ + 1; break;
|
|
2945
|
case ScrollHint::PositionAtCenter:
|
|
2946
|
viewportTop_ = row - viewportHeight_ / 2 + 1; break;
|
|
2947
|
default:
|
|
2948
|
break;
|
|
2949
|
}
|
|
2950
|
|
|
2951
|
scheduleRerender( RenderState::NeedAdjustViewPort );
|
|
2952
|
}
|
|
2953
|
}
|
|
2954
|
|
|
2955
|
WStringStream s;
|
|
2956
|
|
|
2957
|
s << "setTimeout(function() { jQuery.data(" << jsRef()
|
|
2958
|
<< ", 'obj').scrollTo(-1, "
|
|
2959
|
<< row << "," << static_cast<int>(rowHeight().toPixels())
|
|
2960
|
<< "," << (int)hint << ");});";
|
|
2961
|
|
|
2962
|
doJavaScript(s.str());
|
|
2963
|
} else
|
|
2964
|
setCurrentPage(row / pageSize());
|
|
2965
|
}
|
|
2966
|
|
|
2967
|
EventSignal<WScrollEvent>& WTreeView::scrolled(){
|
|
2968
|
if (wApp->environment().ajax() && contentsContainer_ != nullptr)
|
|
2969
|
return contentsContainer_->scrolled();
|
|
2970
|
|
|
2971
|
throw WException("Scrolled signal existes only with ajax.");
|
|
2972
|
}
|
|
2973
|
}
|
|
2974
|
|
|
2975
|
#endif // DOXYGEN_ONLY
|