Kate
expandingtree.cpp
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00019 #include "expandingtree.h"
00020
00021 #include <QTextLayout>
00022 #include <QTextDocument>
00023 #include <QAbstractTextDocumentLayout>
00024 #include <QPainter>
00025 #include <kdebug.h>
00026 #include "expandingwidgetmodel.h"
00027
00028 ExpandingTree::ExpandingTree(QWidget* parent) : QTreeView(parent) {
00029 m_drawText.documentLayout()->setPaintDevice(this);
00030 setUniformRowHeights(false);
00031 }
00032
00033 void ExpandingTree::drawRow ( QPainter * painter, const QStyleOptionViewItem & option, const QModelIndex & index ) const {
00034 QTreeView::drawRow( painter, option, index );
00035
00036 const ExpandingWidgetModel* eModel = qobject_cast<const ExpandingWidgetModel*>(model());
00037 if( eModel && eModel->isPartiallyExpanded( index ) )
00038 {
00039 QRect rect = eModel->partialExpandRect( index );
00040 if( rect.isValid() )
00041 {
00042 painter->fillRect(rect,QBrush(0xffffffff));
00043
00044 QAbstractTextDocumentLayout::PaintContext ctx;
00045
00046 ctx.palette = QPalette( Qt::black, Qt::white );
00047 ctx.clip = QRectF(0,0,rect.width(),rect.height());;
00048 painter->setViewTransformEnabled(true);
00049 painter->translate(rect.left(), rect.top());
00050
00051 m_drawText.setHtml( eModel->partialExpandText( index ) );
00052 m_drawText.setPageSize(QSizeF(rect.width(), rect.height()));
00053 m_drawText.documentLayout()->draw( painter, ctx );
00054
00055 painter->translate(-rect.left(), -rect.top());
00056 }
00057 }
00058 }
00059
00060 int ExpandingTree::sizeHintForColumn ( int column ) const {
00061 return columnWidth( column );
00062 }