summaryrefslogtreecommitdiffstats
path: root/src/svnfrontend/graphtree/pannerview.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/svnfrontend/graphtree/pannerview.cpp')
-rw-r--r--src/svnfrontend/graphtree/pannerview.cpp101
1 files changed, 101 insertions, 0 deletions
diff --git a/src/svnfrontend/graphtree/pannerview.cpp b/src/svnfrontend/graphtree/pannerview.cpp
new file mode 100644
index 0000000..5f14e82
--- /dev/null
+++ b/src/svnfrontend/graphtree/pannerview.cpp
@@ -0,0 +1,101 @@
+/***************************************************************************
+ * Copyright (C) 2006-2007 by Rajko Albrecht *
+ * ral@alwins-world.de *
+ * *
+ * This program is free software; you can redistribute it and/or modify *
+ * it under the terms of the GNU General Public License as published by *
+ * the Free Software Foundation; either version 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program is distributed in the hope that it will be useful, *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
+ * GNU General Public License for more details. *
+ * *
+ * You should have received a copy of the GNU General Public License *
+ * along with this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
+ ***************************************************************************/
+#include "pannerview.h"
+#include <qpainter.h>
+
+PannerView::PannerView(QWidget* parent, const char* name)
+ : QCanvasView(parent, name,WNoAutoErase | WStaticContents )
+{
+ m_Moving = false;
+ viewport()->setBackgroundMode(Qt::NoBackground);
+ setBackgroundMode(Qt::NoBackground);
+}
+
+PannerView::~PannerView()
+{
+}
+
+void PannerView::drawContents(QPainter* p, int clipx, int clipy, int clipw, int cliph)
+{
+ p->save();
+ QCanvasView::drawContents(p,clipx,clipy,clipw,cliph);
+ p->restore();
+ if (m_ZoomRect.isValid()) {
+ p->setPen(red.dark());
+ p->drawRect(m_ZoomRect);
+ p->setPen( red);
+ p->drawRect(QRect(m_ZoomRect.x()+1, m_ZoomRect.y()+1,
+ m_ZoomRect.width()-2, m_ZoomRect.height()-2));
+ }
+}
+
+void PannerView::setZoomRect(const QRect& theValue)
+{
+ QRect oldRect = m_ZoomRect;
+ m_ZoomRect = theValue;
+ updateContents(oldRect);
+ updateContents(m_ZoomRect);
+}
+
+/*!
+ \fn PannerView::contentsMouseMoveEvent(QMouseEvent* e)
+ */
+void PannerView::contentsMouseMoveEvent(QMouseEvent* e)
+{
+ if (m_Moving) {
+ emit zoomRectMoved(e->pos().x() - m_LastPos.x(), e->pos().y() - m_LastPos.y());
+ m_LastPos = e->pos();
+ }
+}
+
+/*!
+ \fn PannerView::contentsMousePressEvent(QMouseEvent* e)
+ */
+void PannerView::contentsMousePressEvent(QMouseEvent* e)
+{
+ if (m_ZoomRect.isValid()) {
+ if (!m_ZoomRect.contains(e->pos())) {
+ emit zoomRectMoved(e->pos().x() - m_ZoomRect.center().x(),
+ e->pos().y() - m_ZoomRect.center().y());
+ }
+ m_Moving = true;
+ m_LastPos = e->pos();
+ }
+}
+
+/*!
+ \fn PannerView::contentsMouseReleaseEvent(QMouseEvent*)
+ */
+void PannerView::contentsMouseReleaseEvent(QMouseEvent*)
+{
+ m_Moving = false;
+ emit zoomRectMoveFinished();
+}
+
+/*!
+ \fn PannerView::updateCurrentRect()
+ */
+void PannerView::updateCurrentRect()
+{
+ if (m_ZoomRect.isValid()) updateContents(m_ZoomRect);
+}
+
+#include "pannerview.moc"
+