PrismLauncher/launcher/ui/widgets/Common.cpp
flow 4a13dbe3bb
feat: create delegate for project item views
This allows us to define custom painting for list view items. In
particular, this is applied to the mod downloader, in order to allow
displaying both the mod name and mod description, and settings their
effects (like bold or underline) independent of each other.

Signed-off-by: flow <flowlnlnln@gmail.com>
2022-08-01 07:33:29 -03:00

34 lines
887 B
C++

#include "Common.h"
// Origin: Qt
// More specifically, this is a trimmed down version on the algorithm in:
// https://code.woboq.org/qt5/qtbase/src/widgets/styles/qcommonstyle.cpp.html#846
QList<std::pair<qreal, QString>> viewItemTextLayout(QTextLayout& textLayout, int lineWidth, qreal& height)
{
QList<std::pair<qreal, QString>> lines;
height = 0;
textLayout.beginLayout();
QString str = textLayout.text();
while (true) {
QTextLine line = textLayout.createLine();
if (!line.isValid())
break;
if (line.textLength() == 0)
break;
line.setLineWidth(lineWidth);
line.setPosition(QPointF(0, height));
height += line.height();
lines.append(std::make_pair(line.naturalTextWidth(), str.mid(line.textStart(), line.textLength())));
}
textLayout.endLayout();
return lines;
}