examples/painting/painterpaths/renderarea.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/painting/painterpaths/renderarea.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,131 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#include "renderarea.h"
+
+//! [0]
+RenderArea::RenderArea(const QPainterPath &path, QWidget *parent)
+    : QWidget(parent), path(path)
+{
+    penWidth = 1;
+    rotationAngle = 0;
+    setBackgroundRole(QPalette::Base);
+}
+//! [0]
+
+//! [1]
+QSize RenderArea::minimumSizeHint() const
+{
+    return QSize(50, 50);
+}
+//! [1]
+
+//! [2]
+QSize RenderArea::sizeHint() const
+{
+    return QSize(100, 100);
+}
+//! [2]
+
+//! [3]
+void RenderArea::setFillRule(Qt::FillRule rule)
+{
+    path.setFillRule(rule);
+    update();
+}
+//! [3]
+
+//! [4]
+void RenderArea::setFillGradient(const QColor &color1, const QColor &color2)
+{
+    fillColor1 = color1;
+    fillColor2 = color2;
+    update();
+}
+//! [4]
+
+//! [5]
+void RenderArea::setPenWidth(int width)
+{
+    penWidth = width;
+    update();
+}
+//! [5]
+
+//! [6]
+void RenderArea::setPenColor(const QColor &color)
+{
+    penColor = color;
+    update();
+}
+//! [6]
+
+//! [7]
+void RenderArea::setRotationAngle(int degrees)
+{
+    rotationAngle = degrees;
+    update();
+}
+//! [7]
+
+//! [8]
+void RenderArea::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+//! [8] //! [9]
+    painter.scale(width() / 100.0, height() / 100.0);
+    painter.translate(50.0, 50.0);
+    painter.rotate(-rotationAngle);
+    painter.translate(-50.0, -50.0);
+
+//! [9] //! [10]
+    painter.setPen(QPen(penColor, penWidth, Qt::SolidLine, Qt::RoundCap,
+                        Qt::RoundJoin));
+    QLinearGradient gradient(0, 0, 0, 100);
+    gradient.setColorAt(0.0, fillColor1);
+    gradient.setColorAt(1.0, fillColor2);
+    painter.setBrush(gradient);
+    painter.drawPath(path);
+}
+//! [10]