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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.
**
** $TROLLTECH_DUAL_EMBEDDED_LICENSE$
**
****************************************************************************/
#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 ®ion, 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
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