//----------------------------------------------------------------
// Text::TPrivate::uploadTexture
//
bool
Text::TPrivate::uploadTexture(const Text & item)
{
QRectF maxRect;
getMaxRect(item, maxRect);
double supersample = item.supersample_.get();
maxRect.setWidth(maxRect.width() * supersample);
maxRect.setHeight(maxRect.height() * supersample);
BBox bboxContent;
item.Item::get(kPropertyBBoxContent, bboxContent);
iw_ = (int)ceil(bboxContent.w_ * supersample);
ih_ = (int)ceil(bboxContent.h_ * supersample);
if (!(iw_ && ih_))
{
return true;
}
GLsizei widthPowerOfTwo = powerOfTwoGEQ<GLsizei>(iw_);
GLsizei heightPowerOfTwo = powerOfTwoGEQ<GLsizei>(ih_);
QImage img(widthPowerOfTwo, heightPowerOfTwo, QImage::Format_ARGB32);
{
const Color & color = item.color_.get();
#ifndef _WIN32
Color bg = color.transparent();
#else
const Color & bg = item.background_.get();
#endif
img.fill(QColor(bg).rgba());
QPainter painter(&img);
QFont font = item.font_;
double fontSize = item.fontSize_.get();
font.setPointSizeF(fontSize * supersample);
painter.setFont(font);
QFontMetricsF fm(font);
int flags = item.textFlags();
QString text = getElidedText(maxRect.width(), item, fm, flags);
painter.setPen(QColor(color));
painter.drawText(maxRect, flags, text);
}
// do not upload supersampled texture at full size, scale down first:
downsample_ = downsampleImage(img, supersample);
bool ok = yae::uploadTexture2D(img, texId_,
supersample == 1.0 ?
GL_NEAREST : GL_LINEAR_MIPMAP_LINEAR);
return ok;
}
// virtual:
void evaluate(BBox & result) const
{
QRectF maxRect;
getMaxRect(item_, maxRect);
calcTextBBox(item_, result, maxRect.width(), maxRect.height());
}
DkPolyRect DkPageSegmentation::getDocumentRect() const {
return getMaxRect();
}
