本文整理汇总了C++中TRasterImageP::setOffset方法的典型用法代码示例。如果您正苦于以下问题：C++ TRasterImageP::setOffset方法的具体用法？C++ TRasterImageP::setOffset怎么用？C++ TRasterImageP::setOffset使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TRasterImageP的用法示例。
在下文中一共展示了TRasterImageP::setOffset方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: build
TImageP ImageRasterizer::build(int imFlags, void *extData)
{
assert(!(imFlags & ~(ImageManager::dontPutInCache | ImageManager::forceRebuild)));
TDimension d(10, 10);
TPoint off(0, 0);
// Fetch image
assert(extData);
ImageLoader::BuildExtData *data = (ImageLoader::BuildExtData *)extData;
const std::string &srcImgId = data->m_sl->getImageId(data->m_fid);
TImageP img = ImageManager::instance()->getImage(srcImgId, imFlags, extData);
if (img) {
TVectorImageP vi = img;
if (vi) {
TRectD bbox = vi->getBBox();
d = TDimension(tceil(bbox.getLx()) + 1, tceil(bbox.getLy()) + 1);
off = TPoint((int)bbox.x0, (int)bbox.y0);
TPalette *vpalette = vi->getPalette();
TVectorRenderData rd(TTranslation(-off.x, -off.y), TRect(TPoint(0, 0), d), vpalette, 0, true, true);
TGlContext oldContext = tglGetCurrentContext();
// this is too slow.
{
QSurfaceFormat format;
format.setProfile(QSurfaceFormat::CompatibilityProfile);
TRaster32P ras(d);
glPushAttrib(GL_ALL_ATTRIB_BITS);
glMatrixMode(GL_MODELVIEW), glPushMatrix();
glMatrixMode(GL_PROJECTION), glPushMatrix();
{
std::unique_ptr<QOpenGLFramebufferObject> fb(new QOpenGLFramebufferObject(d.lx, d.ly));
fb->bind();
assert(glGetError() == 0);
glViewport(0, 0, d.lx, d.ly);
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0, d.lx, 0, d.ly);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.375, 0.375, 0.0);
assert(glGetError() == 0);
tglDraw(rd, vi.getPointer());
assert(glGetError() == 0);
assert(glGetError() == 0);
glFlush();
assert(glGetError() == 0);
QImage img = fb->toImage().scaled(QSize(d.lx, d.ly), Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
int wrap = ras->getLx() * sizeof(TPixel32);
uchar *srcPix = img.bits();
uchar *dstPix = ras->getRawData() + wrap * (d.ly - 1);
for (int y = 0; y < d.ly; y++) {
memcpy(dstPix, srcPix, wrap);
dstPix -= wrap;
srcPix += wrap;
}
fb->release();
}
glMatrixMode(GL_MODELVIEW), glPopMatrix();
glMatrixMode(GL_PROJECTION), glPopMatrix();
glPopAttrib();
tglMakeCurrent(oldContext);
TRasterImageP ri = TRasterImageP(ras);
ri->setOffset(off + ras->getCenter());
return ri;
}
}
}
// Error case: return a dummy image (is it really required?)
TRaster32P ras(d);
ras->fill(TPixel32(127, 0, 127, 127));
return TRasterImageP(ras);
}