File indexing completed on 2024-05-12 04:37:37

 /*
     SPDX-FileCopyrightText: 2008 Vladimir Prus <ghost@cs.msu.su>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "treeview.h"
 
 #include "treemodel.h"
 
 #include <QApplication>
 #include <QDesktopWidget>
 #include <QScreen>
 
 using namespace KDevelop;
 
 AsyncTreeView::AsyncTreeView(TreeModel& treeModel, QWidget* parent)
     : QTreeView(parent)
     , m_treeModel(treeModel)
     , m_autoResizeColumns(true)
 {
     connect (this, &AsyncTreeView::expanded,
              this, &AsyncTreeView::slotExpanded);
     connect (this, &AsyncTreeView::collapsed,
              this, &AsyncTreeView::slotCollapsed);
     connect (this, &AsyncTreeView::clicked,
              this, &AsyncTreeView::slotClicked);
     connect(&m_treeModel, &TreeModel::itemChildrenReady, this, &AsyncTreeView::slotExpandedDataReady);
 }
 
 
 void AsyncTreeView::slotExpanded(const QModelIndex &index)
 {
     m_treeModel.expanded(mapViewIndexToTreeModelIndex(index));
 }
 
 void AsyncTreeView::slotCollapsed(const QModelIndex &index)
 {
     m_treeModel.collapsed(mapViewIndexToTreeModelIndex(index));
     resizeColumnsAutomatically();
 }
 
 void AsyncTreeView::slotClicked(const QModelIndex &index)
 {
     m_treeModel.clicked(mapViewIndexToTreeModelIndex(index));
     resizeColumnsAutomatically();
 }
 
 QSize AsyncTreeView::sizeHint() const
 {
     //Assuming that columns are always resized to fit their contents, return a size that will fit all without a scrollbar
     QMargins margins = contentsMargins();
     int horizontalSize = margins.left() + margins.right();
     for (int i = 0; i < model()->columnCount(); ++i) {
         horizontalSize += columnWidth(i);
     }
     horizontalSize = qMin(horizontalSize, QGuiApplication::primaryScreen()->geometry().width()*3/4);
     return QSize(horizontalSize, margins.top() + margins.bottom() + sizeHintForRow(0));
 }
 
 void AsyncTreeView::resizeColumns()
 {
     for (int i = 0; i < model()->columnCount(); ++i) {
         this->resizeColumnToContents(i);
     }
     this->updateGeometry();
 }
 
 void AsyncTreeView::setAutoResizeColumns(bool on)
 {
     m_autoResizeColumns = on;
     resizeColumnsAutomatically();
 }
 
 TreeModel& AsyncTreeView::treeModel()
 {
     return m_treeModel;
 }
 
 void AsyncTreeView::slotExpandedDataReady()
 {
     resizeColumnsAutomatically();
 }
 
 QModelIndex AsyncTreeView::mapViewIndexToTreeModelIndex(const QModelIndex& viewIndex) const
 {
     return viewIndex;
 }
 
 void AsyncTreeView::resizeColumnsAutomatically()
 {
     if (m_autoResizeColumns) {
         resizeColumns();
     }
 }
 
 #include "moc_treeview.cpp"