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#include "liveviewpaintengine.h"
using namespace sowatch;
LiveViewPaintEngine::LiveViewPaintEngine() :
WatchPaintEngine()
{
}
bool LiveViewPaintEngine::begin(QPaintDevice *pdev)
{
_watch = static_cast<LiveView*>(pdev);
return WatchPaintEngine::begin(_watch->image());
}
bool LiveViewPaintEngine::end()
{
bool ret = WatchPaintEngine::end();
if (ret) {
QRect rect = _damaged.boundingRect();
if (!rect.isEmpty()) {
QImage sub_image = _watch->image()->copy(rect);
_watch->renderImage(rect.x(), rect.y(), sub_image);
}
}
return ret;
}
void LiveViewPaintEngine::drawRects(const QRectF *rects, int rectCount)
{
int i;
for (i = 0; i < rectCount; i++) {
const QRectF& r = rects[i];
if (_hasBrush && fillsEntireImage(r.toRect()) && _isBrushBlack) {
_watch->clear();
_damaged = QRegion();
continue;
}
if (_hasBrush) {
damageRect(r);
}
if (_hasPen) {
damagePenStroke(QLineF(r.left(), r.top(), r.right(), r.top()));
damagePenStroke(QLineF(r.right(), r.top(), r.right(), r.bottom()));
damagePenStroke(QLineF(r.left(), r.bottom(), r.right(), r.bottom()));
damagePenStroke(QLineF(r.left(), r.top(), r.left(), r.bottom()));
}
}
_painter.drawRects(rects, rectCount);
}
void LiveViewPaintEngine::drawRects(const QRect *rects, int rectCount)
{
int i;
for (i = 0; i < rectCount; i++) {
const QRect& r = rects[i];
if (_hasBrush && fillsEntireImage(r) && _isBrushBlack) {
_watch->clear();
_damaged = QRegion();
continue;
}
if (_hasBrush) {
damageRect(r);
}
if (_hasPen) {
damagePenStroke(QLine(r.left(), r.top(), r.right(), r.top()));
damagePenStroke(QLine(r.right(), r.top(), r.right(), r.bottom()));
damagePenStroke(QLine(r.left(), r.bottom(), r.right(), r.bottom()));
damagePenStroke(QLine(r.left(), r.top(), r.left(), r.bottom()));
}
}
_painter.drawRects(rects, rectCount);
}
void LiveViewPaintEngine::updateState(const QPaintEngineState &state)
{
WatchPaintEngine::updateState(state);
if (state.state() & QPaintEngine::DirtyBrush) {
QBrush brush = state.brush();
_isBrushBlack = false;
if (brush.style() == Qt::SolidPattern) {
const QColor color = brush.color();
if (color == Qt::black) {
_isBrushBlack = true;
}
}
}
}
bool LiveViewPaintEngine::fillsEntireImage(const QRect& rect)
{
return rect == _area &&
(!_clipEnabled ||
(_clipRegion.numRects() == 1 && _clipRegion.rects().at(0) == _area));
}
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