1 files changed, 234 insertions, 0 deletions
diff --git a/src/gui/painting/qwindowsurface_s60.cpp b/src/gui/painting/qwindowsurface_s60.cpp
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index 0000000..e81adcc
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+++ b/src/gui/painting/qwindowsurface_s60.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the $MODULE$ 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 <qglobal.h> // for Q_WS_WIN define (non-PCH)
+
+#include <QtGui/qpaintdevice.h>
+#include <private/qwidget_p.h>
+#include "qwindowsurface_s60_p.h"
+#include "qt_s60_p.h"
+#include "private/qdrawhelper_p.h"
+
+QT_BEGIN_NAMESPACE
+
+struct QS60WindowSurfacePrivate
+{
+    QImage device;
+    CFbsBitmap *bitmap;
+    uchar* bytes;
+
+    // Since only one CFbsBitmap is allowed to be locked at a time, this is static.
+    static QS60WindowSurface* lockedSurface;
+};
+QS60WindowSurface* QS60WindowSurfacePrivate::lockedSurface = NULL;
+
+QS60WindowSurface::QS60WindowSurface(QWidget* widget)
+    : QWindowSurface(widget), d_ptr(new QS60WindowSurfacePrivate)
+{
+    d_ptr->bytes = 0;
+    d_ptr->bitmap = 0;
+
+    TDisplayMode mode = S60->screenDevice()->DisplayMode();
+    bool isOpaque = qt_widget_private(widget)->isOpaque;
+    if (mode == EColor16MA && isOpaque)
+        mode = EColor16MU; // Faster since 16MU -> 16MA is typically accelerated
+    else if (mode == EColor16MU && !isOpaque)
+        mode = EColor16MA; // Try for transparency anyway
+
+
+    // We create empty CFbsBitmap here -> it will be resized in setGeometry
+    d_ptr->bitmap = new (ELeave) CFbsBitmap;
+    User::LeaveIfError( d_ptr->bitmap->Create(TSize(0, 0), mode ) );
+
+    updatePaintDeviceOnBitmap();
+
+    setStaticContentsSupport(true);
+}
+
+QS60WindowSurface::~QS60WindowSurface()
+{
+    // Ensure that locking and unlocking of this surface were symmetrical
+    Q_ASSERT(QS60WindowSurfacePrivate::lockedSurface != this);
+
+    delete d_ptr->bitmap;
+    delete d_ptr;
+}
+
+void QS60WindowSurface::beginPaint(const QRegion &rgn)
+{
+    if(!d_ptr->bitmap)
+        return;
+
+    Q_ASSERT(!QS60WindowSurfacePrivate::lockedSurface);
+    QS60WindowSurfacePrivate::lockedSurface = this;
+    lockBitmapHeap();
+
+    if (!qt_widget_private(window())->isOpaque) {
+        QRgb *data = reinterpret_cast<QRgb *>(d_ptr->device.bits());
+        const int row_stride = d_ptr->device.bytesPerLine() / 4;
+
+        const QVector<QRect> rects = rgn.rects();
+        for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it) {
+            const int x_start = it->x();
+            const int width = it->width();
+
+            const int y_start = it->y();
+            const int height = it->height();
+
+            QRgb *row = data + row_stride * y_start;
+            for (int y = 0; y < height; ++y) {
+                qt_memfill(row + x_start, 0U, width);
+                row += row_stride;
+            }
+        }
+    }
+}
+
+void QS60WindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &)
+{
+    const QVector<QRect> subRects = region.rects();
+    for (int i = 0; i < subRects.count(); ++i) {
+        TRect tr = qt_QRect2TRect(subRects[i]);
+        widget->winId()->DrawNow(tr);
+    }
+}
+
+bool QS60WindowSurface::scroll(const QRegion &area, int dx, int dy)
+{
+    QRect rect = area.boundingRect();
+
+    if (dx == 0 && dy == 0)
+        return false;
+
+    if (d_ptr->device.isNull())
+        return false;
+
+    CFbsBitmapDevice *bitmapDevice = CFbsBitmapDevice::NewL(d_ptr->bitmap);
+    CBitmapContext *bitmapContext;
+    TInt err = bitmapDevice->CreateBitmapContext(bitmapContext);
+    if (err != KErrNone) {
+        CBase::Delete(bitmapDevice);
+        return false;
+    }
+    bitmapContext->CopyRect(TPoint(dx, dy), qt_QRect2TRect(rect));
+    CBase::Delete(bitmapContext);
+    CBase::Delete(bitmapDevice);
+    return true;
+}
+
+void QS60WindowSurface::endPaint(const QRegion & /* rgn */)
+{
+    if(!d_ptr->bitmap)
+        return;
+
+    Q_ASSERT(QS60WindowSurfacePrivate::lockedSurface);
+    unlockBitmapHeap();
+    QS60WindowSurfacePrivate::lockedSurface = NULL;
+}
+
+QPaintDevice* QS60WindowSurface::paintDevice()
+{
+    return &d_ptr->device;
+}
+
+void QS60WindowSurface::setGeometry(const QRect& rect)
+{
+    if (rect == geometry())
+        return;
+
+    QWindowSurface::setGeometry(rect);
+
+    TRect nativeRect(qt_QRect2TRect(rect));
+    User::LeaveIfError(d_ptr->bitmap->Resize(nativeRect.Size()));
+
+    if (!rect.isNull())
+        updatePaintDeviceOnBitmap();
+}
+
+void QS60WindowSurface::lockBitmapHeap()
+{
+    if (!QS60WindowSurfacePrivate::lockedSurface)
+        return;
+
+    // Get some local variables to make later code lines more clear to read
+    CFbsBitmap*& bitmap = QS60WindowSurfacePrivate::lockedSurface->d_ptr->bitmap;
+    QImage& device = QS60WindowSurfacePrivate::lockedSurface->d_ptr->device;
+    uchar*& bytes = QS60WindowSurfacePrivate::lockedSurface->d_ptr->bytes;
+
+    bitmap->LockHeap();
+    uchar *newBytes = (uchar*)bitmap->DataAddress();
+    if (newBytes != bytes) {
+        bytes = newBytes;
+
+        // Get some values for QImage creation
+        TDisplayMode mode  = bitmap->DisplayMode();
+        if (mode == EColor16MA
+            && qt_widget_private(QS60WindowSurfacePrivate::lockedSurface->window())->isOpaque)
+            mode = EColor16MU;
+        QImage::Format format = qt_TDisplayMode2Format( mode );
+        TSize bitmapSize = bitmap->SizeInPixels();
+        int bytesPerLine = CFbsBitmap::ScanLineLength( bitmapSize.iWidth, mode);
+
+        device = QImage( bytes, bitmapSize.iWidth, bitmapSize.iHeight, bytesPerLine, format );
+    }
+}
+
+void QS60WindowSurface::unlockBitmapHeap()
+{
+    if (!QS60WindowSurfacePrivate::lockedSurface)
+        return;
+
+    QS60WindowSurfacePrivate::lockedSurface->d_ptr->bitmap->UnlockHeap();
+}
+
+void QS60WindowSurface::updatePaintDeviceOnBitmap()
+{
+    // This forces the actual device to be updated based on CFbsBitmap
+    beginPaint(QRegion());
+    endPaint(QRegion());
+}
+
+CFbsBitmap *QS60WindowSurface::symbianBitmap() const
+{
+    return d_ptr->bitmap;
+}
+
+QT_END_NAMESPACE