canvasdialog.cpp

   1 // Implementation of CanvasDialog methods
   2 // Copyright © 2009 The University of Chicago
   3 #include "canvasdialog.h"
   4
   5 #include <Q3VBoxLayout>
   6 #include <QPixmap>
   7
   8 CanvasDialog::CanvasDialog(QWidget* parent, Qt::WindowFlags fl)
   9         : QDialog( parent, 0, false, fl ), Ui::CanvasDialogBase(),
  10         m_canvasDialogLayout(), // initialized below
  11         m_canvas(new Q3Canvas(width(), height())),
  12         m_canvasView() // initialized below
  13 {
  14         setupUi(this);
  15
  16
  17         m_canvasView = new Q3CanvasView(m_canvas, this);
  18         m_canvasDialogLayout = new Q3VBoxLayout(this, 11, 6);
  19         m_canvasDialogLayout->addWidget(m_canvasView);
  20         m_canvas->update();
  21 }
  22
  23 CanvasDialog::~CanvasDialog() { delete m_canvas; }
  24
  25 void CanvasDialog::saveToFile( const QRect& rectangle, const QString& fileName, const char* format )
  26 {
  27         QPixmap image = QPixmap::grabWidget( m_canvasView,
  28                                                                                  rectangle.left() - 5,
  29                                                                                  rectangle.top() - 5,
  30                                                                                  rectangle.width() + 10,
  31                                                                                  rectangle.height() + 10 );
  32
  33         image.save( fileName, format );
  34 }
  35
  36
  37 void CanvasDialog::clear()
  38 {
  39         Q3CanvasItemList list = m_canvasView->canvas()->allItems();
  40         Q3CanvasItemList::Iterator it = list.begin();
  41         for( ; it != list.end(); ++it )
  42         {
  43                 if ( *it ) delete *it;
  44         }
  45 }
  46