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-rw-r--r--examples/chart/canvasview.cpp55
1 files changed, 55 insertions, 0 deletions
diff --git a/examples/chart/canvasview.cpp b/examples/chart/canvasview.cpp
new file mode 100644
index 0000000..42701f5
--- /dev/null
+++ b/examples/chart/canvasview.cpp
@@ -0,0 +1,55 @@
+#include "canvasview.h"
+#include "chartform.h"
+
+#include <qcursor.h>
+#include <qpoint.h>
+#include <qpopupmenu.h>
+#include <qstatusbar.h>
+
+
+void CanvasView::contentsContextMenuEvent( QContextMenuEvent * )
+{
+ ((ChartForm*)parent())->optionsMenu->exec( QCursor::pos() );
+}
+
+
+void CanvasView::viewportResizeEvent( QResizeEvent *e )
+{
+ canvas()->resize( e->size().width(), e->size().height() );
+ ((ChartForm*)parent())->drawElements();
+}
+
+
+void CanvasView::contentsMousePressEvent( QMouseEvent *e )
+{
+ QCanvasItemList list = canvas()->collisions( e->pos() );
+ for ( QCanvasItemList::iterator it = list.begin(); it != list.end(); ++it )
+ if ( (*it)->rtti() == CanvasText::CANVAS_TEXT ) {
+ m_movingItem = *it;
+ m_pos = e->pos();
+ return;
+ }
+ m_movingItem = 0;
+}
+
+
+void CanvasView::contentsMouseMoveEvent( QMouseEvent *e )
+{
+ if ( m_movingItem ) {
+ QPoint offset = e->pos() - m_pos;
+ m_movingItem->moveBy( offset.x(), offset.y() );
+ m_pos = e->pos();
+ ChartForm *form = (ChartForm*)parent();
+ form->setChanged( TRUE );
+ int chartType = form->chartType();
+ CanvasText *item = (CanvasText*)m_movingItem;
+ int i = item->index();
+
+ (*m_elements)[i].setProX( chartType, item->x() / canvas()->width() );
+ (*m_elements)[i].setProY( chartType, item->y() / canvas()->height() );
+
+ canvas()->update();
+ }
+}
+
+