diff options
Diffstat (limited to 'src/gui/painting/qunifiedtoolbarsurface_mac_p.h')
| -rw-r--r-- | src/gui/painting/qunifiedtoolbarsurface_mac_p.h | 67 |
1 files changed, 50 insertions, 17 deletions
diff --git a/src/gui/painting/qunifiedtoolbarsurface_mac_p.h b/src/gui/painting/qunifiedtoolbarsurface_mac_p.h index 0a7ebf1..ec09c94 100644 --- a/src/gui/painting/qunifiedtoolbarsurface_mac_p.h +++ b/src/gui/painting/qunifiedtoolbarsurface_mac_p.h @@ -7,29 +7,29 @@ ** 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 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. +** 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 +** 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. -** -** +** 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. ** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. ** ** ** @@ -65,6 +65,39 @@ QT_BEGIN_NAMESPACE class QNativeImage; +// +// This is the implementation of the unified toolbar on Mac OS X +// with the graphics system raster. +// +// General idea: +// ------------- +// We redirect the painting of widgets inside the unified toolbar +// to a special window surface, the QUnifiedToolbarSurface. +// We need a separate window surface because the unified toolbar +// is out of the content view. +// The input system is the same as for the unified toolbar with the +// native (CoreGraphics) engine. +// +// Execution flow: +// --------------- +// The unified toolbar is triggered by QMainWindow::setUnifiedTitleAndToolBarOnMac(). +// It calls QMainWindowLayout::insertIntoMacToolbar() which will +// set all the appropriate variables (offsets, redirection, ...). +// When Qt tells a widget to repaint, QWidgetPrivate::drawWidget() +// checks if the widget is inside the unified toolbar and exits without +// painting is that is the case. +// We trigger the rendering of the unified toolbar in QWidget::repaint() +// and QWidget::update(). +// We keep track of flush requests via "flushRequested" variable. That +// allow flush() to be a no-op if no repaint occurred for a widget. +// We rely on the needsDisplay: and drawRect: mecanism for drawing our +// content into the graphics context. +// +// Notes: +// ------ +// The painting of items inside the unified toolbar is expensive. +// Too many repaints will drastically slow down the whole application. +// class QUnifiedToolbarSurfacePrivate { |