aboutsummaryrefslogtreecommitdiffstats
path: root/doc/codesnippets/doc/src/snippets/myscrollarea.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/myscrollarea.cpp')
-rw-r--r--doc/codesnippets/doc/src/snippets/myscrollarea.cpp103
1 files changed, 103 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/myscrollarea.cpp b/doc/codesnippets/doc/src/snippets/myscrollarea.cpp
new file mode 100644
index 000000000..0f3b17cea
--- /dev/null
+++ b/doc/codesnippets/doc/src/snippets/myscrollarea.cpp
@@ -0,0 +1,103 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial Usage
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+from PySide.QtCore import *
+from PySide.QtGui import *
+import sys
+
+class MyScrollArea (QAbstractScrollArea):
+ widget = None
+
+ def __init__(widget):
+ self.setWidget(widget);
+
+ def setWidget(w):
+ self.widget = w;
+ self.widget.setParent(viewport());
+ if not self.widget.testAttribute(Qt.WA_Resized):
+ self.widget.resize(widget.sizeHint())
+
+ self.verticalScrollBar().setValue(0)
+ self.verticalScrollBar().setValue(0)
+
+ self.updateArea()
+
+
+ def updateWidgetPosition():
+//! [0]
+ hvalue = self.horizontalScrollBar().value()
+ vvalue = self.verticalScrollBar().value()
+ topLeft = self.viewport().rect().topLeft()
+
+ self.widget.move(topLeft.x() - hvalue, topLeft.y() - vvalue)
+//! [0]
+
+
+ def scrollContentsBy(dx, dy):
+ self.updateWidgetPosition()
+
+ def updateArea():
+//! [1]
+ areaSize = viewport().size()
+ widgetSize = widget.size()
+
+ self.verticalScrollBar().setPageStep(widgetSize.height())
+ self.horizontalScrollBar().setPageStep(widgetSize.width())
+ self.verticalScrollBar().setRange(0, widgetSize.height() - areaSize.height())
+ self.horizontalScrollBar().setRange(0, widgetSize.width() - areaSize.width())
+ self.updateWidgetPosition()
+//! [1]
+
+ def resizeEvent(QResizeEvent):
+ self.updateArea()
+
+app = QApplication(sys.argv)
+pixmap = QPixmap("mypixmap.png")
+label = QLabel()
+label.setPixmap(pixmap)
+area = MyScrollArea(label)
+area.resize(300, 300)
+area.show()
+
+area.setWidget(label)
+
+app.exec_();
+