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authorLars Knoll <lars.knoll@nokia.com>2009-03-23 10:18:55 +0100
committerSimon Hausmann <simon.hausmann@nokia.com>2009-03-23 10:18:55 +0100
commite5fcad302d86d316390c6b0f62759a067313e8a9 (patch)
treec2afbf6f1066b6ce261f14341cf6d310e5595bc1 /src/gui/painting/qwindowsurface_mac.cpp
downloadqt4-tools-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz
Long live Qt 4.5!
Diffstat (limited to 'src/gui/painting/qwindowsurface_mac.cpp')
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1 files changed, 137 insertions, 0 deletions
diff --git a/src/gui/painting/qwindowsurface_mac.cpp b/src/gui/painting/qwindowsurface_mac.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtGui module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwindowsurface_mac_p.h"
+
+#include <private/qt_mac_p.h>
+#include <private/qt_cocoa_helpers_mac_p.h>
+#include <QtGui/qwidget.h>
+
+QT_BEGIN_NAMESPACE
+
+struct QMacWindowSurfacePrivate
+{
+ QWidget *widget;
+ QPixmap device;
+};
+
+QMacWindowSurface::QMacWindowSurface(QWidget *widget)
+ : QWindowSurface(widget), d_ptr(new QMacWindowSurfacePrivate)
+{
+ d_ptr->widget = widget;
+}
+
+QMacWindowSurface::~QMacWindowSurface()
+{
+ delete d_ptr;
+}
+
+QPaintDevice *QMacWindowSurface::paintDevice()
+{
+ return &d_ptr->device;
+}
+
+void QMacWindowSurface::flush(QWidget *widget, const QRegion &rgn, const QPoint &offset)
+{
+ Q_UNUSED(offset);
+
+ // Get a context for the widget.
+#ifndef QT_MAC_USE_COCOA
+ CGContextRef context;
+ CGrafPtr port = GetWindowPort(qt_mac_window_for(widget));
+ QDBeginCGContext(port, &context);
+#else
+ extern CGContextRef qt_mac_graphicsContextFor(QWidget *);
+ CGContextRef context = qt_mac_graphicsContextFor(widget);
+#endif
+ CGContextSaveGState(context);
+
+ // Flip context.
+ CGContextTranslateCTM(context, 0, widget->height());
+ CGContextScaleCTM(context, 1, -1);
+
+ // Clip to region.
+ const QVector<QRect> &rects = rgn.rects();
+ for (int i = 0; i < rects.size(); ++i) {
+ const QRect &rect = rects.at(i);
+ CGContextAddRect(context, CGRectMake(rect.x(), rect.y(), rect.width(), rect.height()));
+ }
+ CGContextClip(context);
+
+ // Draw the image onto the window.
+ const CGRect dest = CGRectMake(0, 0, widget->width(), widget->height());
+ const CGImageRef image = d_ptr->device.toMacCGImageRef();
+ qt_mac_drawCGImage(context, &dest, image);
+ CFRelease(image);
+
+ // Restore context.
+ CGContextRestoreGState(context);
+#ifndef QT_MAC_USE_COCOA
+ QDEndCGContext(port, &context);
+#else
+ CGContextFlush(context);
+#endif
+}
+
+void QMacWindowSurface::setGeometry(const QRect &rect)
+{
+ QWindowSurface::setGeometry(rect);
+ const QSize size = rect.size();
+ if (d_ptr->device.size() != size)
+ d_ptr->device = QPixmap(size);
+}
+
+bool QMacWindowSurface::scroll(const QRegion &area, int dx, int dy)
+{
+ if (d_ptr->device.size().isNull())
+ return false;
+
+ QCFType<CGImageRef> image = d_ptr->device.toMacCGImageRef();
+ const QRect rect(area.boundingRect());
+ const CGRect dest = CGRectMake(rect.x(), rect.y(), rect.width(), rect.height());
+ QCFType<CGImageRef> subimage = CGImageCreateWithImageInRect(image, dest);
+ QCFType<CGContextRef> context = qt_mac_cg_context(&d_ptr->device);
+ CGContextTranslateCTM(context, dx, dy);
+ qt_mac_drawCGImage(context, &dest, subimage);
+ return true;
+}
+
+QT_END_NAMESPACE