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"
+