File indexing completed on 2024-04-28 03:51:21

 /*.
     SPDX-FileCopyrightText: 2007 Vladimir Kuznetsov <ks.vladimir@gmail.com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "worldbrowser.h"
 
 #include "worldmodel.h"
 #include <stepcore/world.h>
 
 #include <QApplication>
 #include <QContextMenuEvent>
 #include <QHeaderView>
 #include <QKeyEvent>
 #include <QMenu>
 #include <QTreeView>
 
 #include <KLocalizedString>
 
 class WorldBrowserView: public QTreeView
 {
 public:
     WorldBrowserView(QWidget* parent = nullptr);
     void reset() override;
 
 protected:
     void changeEvent(QEvent* event) override;
     void drawBranches(QPainter *painter, const QRect &rect, const QModelIndex &index) const override;
     void keyPressEvent(QKeyEvent* e) override;
     void contextMenuEvent(QContextMenuEvent* event) override;
     WorldModel* worldModel() { return static_cast<WorldModel*>(model()); }
     const int _windowsDecoSize;
     bool _macStyle;
 };
 
 WorldBrowserView::WorldBrowserView(QWidget* parent)
         : QTreeView(parent), _windowsDecoSize(9)
 {
     _macStyle = QApplication::style()->inherits("QMacStyle");
 }
 
 void WorldBrowserView::changeEvent(QEvent* event)
 {
     if(event->type() == QEvent::StyleChange)
         _macStyle = QApplication::style()->inherits("QMacStyle");
 }
 
 WorldBrowser::WorldBrowser(WorldModel* worldModel, QWidget* parent)
     : QDockWidget(i18nc("Object list", "World"), parent)
 {
     _worldBrowserView = new WorldBrowserView(this);
     _worldBrowserView->header()->hide();
     _worldBrowserView->setAllColumnsShowFocus(true);
     _worldBrowserView->setRootIsDecorated(false);
     _worldBrowserView->setModel(worldModel);
     _worldBrowserView->setSelectionModel(worldModel->selectionModel());
     _worldBrowserView->setSelectionMode(QAbstractItemView::ExtendedSelection); // XXX
     setWidget(_worldBrowserView);
 }
 
 void WorldBrowserView::reset()
 {
     QTreeView::reset();
     expand(worldModel()->worldIndex());
 }
 
 void WorldBrowserView::keyPressEvent(QKeyEvent* e)
 {
     if(e->matches(QKeySequence::Delete)) {
         worldModel()->deleteSelectedItems();
         e->accept();
     } else QTreeView::keyPressEvent(e);
 }
 
 void WorldBrowserView::contextMenuEvent(QContextMenuEvent* event)
 {
     QModelIndex index = indexAt(event->pos());
     if(!index.isValid()) return;
 
     event->accept();
     QMenu* menu = worldModel()->createContextMenu(index);
     menu->exec(event->globalPos());
     delete menu;
 }
 
 void WorldBrowserView::drawBranches(QPainter *painter, const QRect &rect, const QModelIndex &index) const
 {
     // Inspired by qt-designer code in src/components/propertyeditor/qpropertyeditor.cpp
     if(!index.parent().isValid()) return;
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     QStyleOptionViewItem opt;
     initViewItemOption(&opt);
 #else
     QStyleOptionViewItem opt = viewOptions();
 #endif
 
     if(model()->hasChildren(index)) {
         opt.state |= QStyle::State_Children;
 
         QRect primitive(rect.left() + rect.width() - indentation(), rect.top(),
                                                     indentation(), rect.height());
 
         if (!_macStyle) {
             primitive.moveLeft(primitive.left() + (primitive.width() - _windowsDecoSize)/2);
             primitive.moveTop(primitive.top() + (primitive.height() - _windowsDecoSize)/2);
             primitive.setWidth(_windowsDecoSize);
             primitive.setHeight(_windowsDecoSize);
         }
 
         opt.rect = primitive;
 
         if(isExpanded(index)) opt.state |= QStyle::State_Open;
         style()->drawPrimitive(QStyle::PE_IndicatorBranch, &opt, painter, this);
     }
 }
 
 #include "moc_worldbrowser.cpp"