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     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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    16 ** GNU Lesser General Public License Usage

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    40 ****************************************************************************/

    41 

    42 #include <qglobal.h> // for Q_WS_WIN define (non-PCH)

    43 

    44 #include <QtGui/qpaintdevice.h>

    45 #include <private/qwidget_p.h>

    46 #include "qwindowsurface_s60_p.h"

    47 #include "qpixmap_s60_p.h"

    48 #include "qt_s60_p.h"

    49 #include "private/qdrawhelper_p.h"

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 struct QS60WindowSurfacePrivate

    54 {

    55     QPixmap device;

    56     QList<QImage*> bufferImages;

    57 };

    58 

    59 QS60WindowSurface::QS60WindowSurface(QWidget* widget)

    60     : QWindowSurface(widget), d_ptr(new QS60WindowSurfacePrivate)

    61 {

    62 

    63     TDisplayMode mode = S60->screenDevice()->DisplayMode();

    64     bool isOpaque = qt_widget_private(widget)->isOpaque;

    65     if (mode == EColor16MA && isOpaque)

    66         mode = EColor16MU; // Faster since 16MU -> 16MA is typically accelerated

    67     else if (mode == EColor16MU && !isOpaque)

    68         mode = EColor16MA; // Try for transparency anyway

    69 

    70     // We create empty CFbsBitmap here -> it will be resized in setGeometry

    71 	CFbsBitmap *bitmap = q_check_ptr(new CFbsBitmap);	// CBase derived object needs check on new

    72     qt_symbian_throwIfError( bitmap->Create( TSize(0, 0), mode ) );

    73 	

    74     QS60PixmapData *data = new QS60PixmapData(QPixmapData::PixmapType);

    75     data->fromSymbianBitmap(bitmap);

    76     d_ptr->device = QPixmap(data);

    77         

    78     setStaticContentsSupport(true);

    79 }

    80 QS60WindowSurface::~QS60WindowSurface()

    81 {

    82     delete d_ptr;

    83 }

    84 

    85 void QS60WindowSurface::beginPaint(const QRegion &rgn)

    86 {

    87     if (!qt_widget_private(window())->isOpaque) {

    88         QS60PixmapData *pixmapData = static_cast<QS60PixmapData *>(d_ptr->device.data_ptr().data());

    89         pixmapData->beginDataAccess();

    90         QImage &image = pixmapData->image;

    91         QRgb *data = reinterpret_cast<QRgb *>(image.bits());

    92         const int row_stride = image.bytesPerLine() / 4;

    93 

    94         const QVector<QRect> rects = rgn.rects();

    95         for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it) {

    96             const int x_start = it->x();

    97             const int width = it->width();

    98 

    99             const int y_start = it->y();

   100             const int height = it->height();

   101 

   102             QRgb *row = data + row_stride * y_start;

   103             for (int y = 0; y < height; ++y) {

   104                 qt_memfill(row + x_start, 0U, width);

   105                 row += row_stride;

   106             }

   107         }

   108         pixmapData->endDataAccess();

   109     }

   110 }

   111 

   112 void QS60WindowSurface::endPaint(const QRegion &)

   113 {

   114     qDeleteAll(d_ptr->bufferImages);

   115     d_ptr->bufferImages.clear();

   116 }

   117 

   118 QImage* QS60WindowSurface::buffer(const QWidget *widget)

   119 {

   120     if (widget->window() != window())

   121         return 0;

   122 

   123     QPaintDevice *pdev = paintDevice();

   124     if (!pdev)

   125         return 0;

   126 

   127     const QPoint off = offset(widget);

   128     QImage *img = &(static_cast<QS60PixmapData *>(d_ptr->device.data_ptr().data())->image);

   129     

   130     QRect rect(off, widget->size());

   131     rect &= QRect(QPoint(), img->size());

   132 

   133     if (rect.isEmpty())

   134         return 0;

   135 

   136     img = new QImage(img->scanLine(rect.y()) + rect.x() * img->depth() / 8,

   137                      rect.width(), rect.height(),

   138                      img->bytesPerLine(), img->format());

   139     d_ptr->bufferImages.append(img);

   140 

   141     return img;

   142 }

   143 

   144 void QS60WindowSurface::flush(QWidget *widget, const QRegion &region, const QPoint &)

   145 {

   146     const QVector<QRect> subRects = region.rects();

   147     for (int i = 0; i < subRects.count(); ++i) {

   148         TRect tr = qt_QRect2TRect(subRects[i]);

   149         widget->winId()->DrawNow(tr);

   150     }

   151 }

   152 

   153 bool QS60WindowSurface::scroll(const QRegion &area, int dx, int dy)

   154 {

   155     QRect rect = area.boundingRect();

   156 

   157     if (dx == 0 && dy == 0)

   158         return false;

   159 

   160     if (d_ptr->device.isNull())

   161         return false;

   162 

   163     QS60PixmapData *data = static_cast<QS60PixmapData*>(d_ptr->device.data_ptr().data());

   164     data->scroll(dx, dy, rect);

   165 

   166     return true;

   167 }

   168 

   169 QPaintDevice* QS60WindowSurface::paintDevice()

   170 {

   171     return &d_ptr->device;

   172 }

   173 

   174 void QS60WindowSurface::setGeometry(const QRect& rect)

   175 {

   176     if (rect == geometry())

   177         return;

   178 

   179     QS60PixmapData *data = static_cast<QS60PixmapData*>(d_ptr->device.data_ptr().data());

   180     data->resize(rect.width(), rect.height());

   181 

   182     QWindowSurface::setGeometry(rect);

   183 }

   184 

   185 CFbsBitmap* QS60WindowSurface::symbianBitmap() const

   186 {

   187     QS60PixmapData *data = static_cast<QS60PixmapData*>(d_ptr->device.data_ptr().data());

   188     return data->cfbsBitmap;

   189 }

   190 

   191 QT_END_NAMESPACE

   192