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feat: Render composite arrow and tool icon for active tool cursor

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Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>
This commit is contained in:
Tanner Collin
2026-02-14 21:21:51 -07:00
parent 0250287ba0
commit dc7f3642b8
1 changed files with 25 additions and 9 deletions
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34
src/ViewportWidget.cpp
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@@ -394,18 +394,34 @@ void ViewportWidget::onActiveToolChanged(int tool)
if (m_toolIcons.contains(tool)) { if (m_toolIcons.contains(tool)) {
QSvgRenderer* renderer = m_toolIcons.value(tool); QSvgRenderer* renderer = m_toolIcons.value(tool);
if (renderer && renderer->isValid()) { if (renderer && renderer->isValid()) {
const QSize cursorSize(48, 48);
QPixmap cursorPixmap(cursorSize);
cursorPixmap.fill(Qt::transparent);
QPainter painter(&cursorPixmap);
painter.setRenderHint(QPainter::Antialiasing);
// Draw arrow cursor manually
QPolygon arrowPolygon;
arrowPolygon << QPoint(0, 0) << QPoint(0, 11) << QPoint(4, 11) << QPoint(4, 16) << QPoint(7, 16) << QPoint(7, 11) << QPoint(11, 11);
painter.setPen(Qt::white);
painter.setBrush(Qt::black);
painter.drawPolygon(arrowPolygon);
// Render tool icon
const QSize iconSize(32, 32); const QSize iconSize(32, 32);
QPixmap iconPixmap(iconSize);
iconPixmap.fill(Qt::transparent);
QPainter iconPainter(&iconPixmap);
renderer->render(&iconPainter);
iconPainter.end();
QPixmap pixmap(iconSize); // Invert and draw icon onto cursor pixmap
pixmap.fill(Qt::transparent); QImage iconImage = iconPixmap.toImage();
QPainter pixmapPainter(&pixmap); iconImage.invertPixels(QImage::InvertRgb);
renderer->render(&pixmapPainter); painter.drawImage(QRect(12, 12, iconSize.width(), iconSize.height()), iconImage);
pixmapPainter.end(); painter.end();
QImage image = pixmap.toImage(); setCursor(QCursor(cursorPixmap, 0, 0));
image.invertPixels(QImage::InvertRgb);
setCursor(QCursor(QPixmap::fromImage(image), 16, 16));
} }
} else { } else {
unsetCursor(); unsetCursor();