src/gui/image/qpixmap_qws.cpp
changeset 0 1918ee327afb
child 3 41300fa6a67c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/gui/image/qpixmap_qws.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,155 @@
+/****************************************************************************
+**
+** 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 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.
+**
+** 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 <qpixmap.h>
+#include <qapplication.h>
+#include <qwidget.h>
+#include <qdesktopwidget.h>
+#include <qscreen_qws.h>
+#include <qwsdisplay_qws.h>
+#include <private/qdrawhelper_p.h>
+#include <private/qpixmap_raster_p.h>
+
+
+QT_BEGIN_NAMESPACE
+
+QPixmap QPixmap::grabWindow(WId window, int x, int y, int w, int h)
+{
+    QWidget *widget = QWidget::find(window);
+    if (!widget)
+        return QPixmap();
+
+    QRect grabRect = widget->frameGeometry();
+    if (!widget->isWindow())
+        grabRect.translate(widget->parentWidget()->mapToGlobal(QPoint()));
+    if (w < 0)
+        w = widget->width() - x;
+    if (h < 0)
+        h = widget->height() - y;
+    grabRect &= QRect(x, y, w, h).translated(widget->mapToGlobal(QPoint()));
+
+    QScreen *screen = qt_screen;
+    QDesktopWidget *desktop = QApplication::desktop();
+    if (!desktop)
+        return QPixmap();
+    if (desktop->numScreens() > 1) {
+        const int screenNo = desktop->screenNumber(widget);
+        if (screenNo != -1)
+            screen = qt_screen->subScreens().at(screenNo);
+        grabRect = grabRect.translated(-screen->region().boundingRect().topLeft());
+    }
+
+    if (screen->pixelFormat() == QImage::Format_Invalid) {
+        qWarning("QPixmap::grabWindow(): Unable to copy pixels from framebuffer");
+        return QPixmap();
+    }
+
+    if (screen->isTransformed()) {
+        const QSize screenSize(screen->width(), screen->height());
+        grabRect = screen->mapToDevice(grabRect, screenSize);
+    }
+
+    QWSDisplay::grab(false);
+    QPixmap pixmap;
+    QImage img(screen->base(),
+               screen->deviceWidth(), screen->deviceHeight(),
+               screen->linestep(), screen->pixelFormat());
+    img = img.copy(grabRect);
+    QWSDisplay::ungrab();
+
+    if (screen->isTransformed()) {
+        QMatrix matrix;
+        switch (screen->transformOrientation()) {
+        case 1: matrix.rotate(90); break;
+        case 2: matrix.rotate(180); break;
+        case 3: matrix.rotate(270); break;
+        default: break;
+        }
+        img = img.transformed(matrix);
+    }
+
+    if (screen->pixelType() == QScreen::BGRPixel)
+        img = img.rgbSwapped();
+
+    return QPixmap::fromImage(img);
+}
+
+QRgb* QPixmap::clut() const
+{
+    if (data->classId() == QPixmapData::RasterClass) {
+        const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data.data());
+        return d->image.colorTable().data();
+    }
+
+    return 0;
+}
+
+int QPixmap::numCols() const
+{
+    if (data->classId() == QPixmapData::RasterClass) {
+        const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data.data());
+        return d->image.numColors();
+    }
+
+    return 0;
+}
+
+const uchar* QPixmap::qwsBits() const
+{
+    if (data->classId() == QPixmapData::RasterClass) {
+        const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data.data());
+        return d->image.bits();
+    }
+
+    return 0;
+}
+
+int QPixmap::qwsBytesPerLine() const
+{
+    if (data->classId() == QPixmapData::RasterClass) {
+        const QRasterPixmapData *d = static_cast<const QRasterPixmapData*>(data.data());
+        return d->image.bytesPerLine();
+    }
+
+    return 0;
+}
+
+QT_END_NAMESPACE