void CEllipseContainer::Render(agg::rendering_buffer &buffer)
{
if (!m_vec.size())
{
return;
}
agg::pixfmt_bgr24 pixfmt(buffer);
typedef agg::renderer_base<agg::pixfmt_bgr24> renbase;
typedef agg::renderer_scanline_aa_solid<renbase> render_solid;
renbase rbase(pixfmt);
render_solid renderSolid(rbase);
rbase.clear(agg::rgba8(255, 255, 255));
agg::rasterizer_scanline_aa<> ras;
for (EllipseIterator first = m_vec.begin(); first != m_vec.end(); ++first)
{
ras.add_path(*(*first));
}
agg::path_storage line;
CEllipseCtrl *ell = m_vec[0];
line.move_to(ell->GetBase().m_x, ell->GetBase().m_y);
for(unsigned int i = 1; i < m_vec.size(); ++i)
{
ell = m_vec[i];
line.line_to(ell->GetBase().m_x, ell->GetBase().m_y);
}
agg::conv_stroke<agg::path_storage> strokeLine(line);
strokeLine.width(1.0);
ras.add_path(strokeLine);
renderSolid.color(agg::rgba8(255, 0, 0));
agg::scanline_u8 sl;
agg::render_scanlines(ras, sl, renderSolid);
}
void strokeLine (const Vec2f& p0, const Vec2f& p1, U32 abgr) { strokeLine(Vec4f(p0, 0.0f, 1.0f), Vec4f(p1, 0.0f, 1.0f), abgr); }
void QCosmeticStroker::setup()
{
blend = state->penData.blend;
if (state->clip && state->clip->enabled && state->clip->hasRectClip && !state->clip->clipRect.isEmpty()) {
clip &= state->clip->clipRect;
blend = state->penData.unclipped_blend;
}
int strokeSelection = 0;
if (blend == state->penData.unclipped_blend
&& state->penData.type == QSpanData::Solid
&& (state->penData.rasterBuffer->format == QImage::Format_ARGB32_Premultiplied
|| state->penData.rasterBuffer->format == QImage::Format_RGB32)
&& state->compositionMode() == QPainter::CompositionMode_SourceOver)
strokeSelection |= FastDraw;
if (state->renderHints & QPainter::Antialiasing)
strokeSelection |= AntiAliased;
const QVector<qreal> &penPattern = state->lastPen.dashPattern();
if (penPattern.isEmpty()) {
Q_ASSERT(!pattern && !reversePattern);
pattern = 0;
reversePattern = 0;
patternLength = 0;
patternSize = 0;
} else {
pattern = (int *)malloc(penPattern.size()*sizeof(int));
reversePattern = (int *)malloc(penPattern.size()*sizeof(int));
patternSize = penPattern.size();
patternLength = 0;
for (int i = 0; i < patternSize; ++i) {
patternLength += (int) qMax(1. , penPattern.at(i)*64.);
pattern[i] = patternLength;
}
patternLength = 0;
for (int i = 0; i < patternSize; ++i) {
patternLength += (int) qMax(1., penPattern.at(patternSize - 1 - i)*64.);
reversePattern[i] = patternLength;
}
strokeSelection |= Dashed;
// qDebug() << "setup: size=" << patternSize << "length=" << patternLength/64.;
}
stroke = strokeLine(strokeSelection);
qreal width = state->lastPen.widthF();
if (width == 0)
opacity = 256;
else if (state->lastPen.isCosmetic())
opacity = (int) 256*width;
else
opacity = (int) 256*width*state->txscale;
opacity = qBound(0, opacity, 256);
drawCaps = state->lastPen.capStyle() != Qt::FlatCap;
if (strokeSelection & FastDraw) {
color = INTERPOLATE_PIXEL_256(state->penData.solid.color, opacity, 0, 0);
QRasterBuffer *buffer = state->penData.rasterBuffer;
pixels = (uint *)buffer->buffer();
ppl = buffer->bytesPerLine()>>2;
}
