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[consider merging] Fixed rendering of color selector buttons on high-DPI screens

This commit is contained in:
Matthias Koefferlein 2024-01-30 00:11:30 +01:00
parent 787d9b481a
commit a0dd7db96e
1 changed files with 26 additions and 9 deletions
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35
src/layui/layui/layWidgets.cc
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@ -972,17 +972,31 @@ SimpleColorButton::set_color_internal (QColor c)
m_color = c;
QFontMetrics fm (font (), this);
QRect rt (fm.boundingRect (QObject::tr ("Auto"))); // dummy text to be compliant with the other color button
QPixmap pxmp (rt.width () + 24, rt.height ());
QRect rt (fm.boundingRect (QObject::tr ("XXXXXXX")));
#if QT_VERSION >= 0x050000
double dpr = devicePixelRatio ();
#else
double dpr = 1.0;
#endif
QPixmap pxmp (rt.width () * dpr, rt.height () * dpr);
#if QT_VERSION >= 0x050000
pxmp.setDevicePixelRatio (dpr);
#endif
QPainter pxpainter (&pxmp);
QColor text_color = palette ().color (QPalette::Active, QPalette::Text);
pxpainter.setPen (QPen (text_color));
pxpainter.setBrush (QBrush (c.isValid () ? c : QColor (128, 128, 128)));
QRect r (0, 0, pxmp.width () - 1, pxmp.height () - 1);
QPen frame_pen (text_color);
frame_pen.setWidthF (1.0);
frame_pen.setJoinStyle (Qt::MiterJoin);
pxpainter.setPen (frame_pen);
int dpri = int (dpr);
QRectF r ((dpri / 2) / dpr, (dpri / 2) / dpr, rt.width () - 1.0, rt.height () - 1.0);
pxpainter.drawRect (r);
setIconSize (pxmp.size ());
setIconSize (QSize (rt.width (), rt.height ()));
setIcon (QIcon (pxmp));
}
@ -1216,22 +1230,25 @@ ColorButton::set_color_internal (QColor c)
#if QT_VERSION >= 0x50000
pixmap.setDevicePixelRatio (dpr);
#endif
pixmap.fill (QColor (0, 0, 0, 0));
QColor text_color = palette ().color (QPalette::Active, QPalette::Text);
QPainter pxpainter (&pixmap);
pxpainter.setPen (QPen (text_color));
QPen frame_pen (text_color);
frame_pen.setWidthF (1.0);
frame_pen.setJoinStyle (Qt::MiterJoin);
pxpainter.setPen (frame_pen);
int dpri = int (dpr);
QRectF r ((dpri / 2) / dpr, (dpri / 2) / dpr, rt.width () - 1.0, rt.height () - 1.0);
if (! m_color.isValid ()) {
pxpainter.setFont (font ());
QRectF r (0, 0, rt.width () - pxpainter.pen ().widthF (), rt.height () - pxpainter.pen ().widthF ());
pxpainter.drawText (r, Qt::AlignHCenter | Qt::AlignVCenter | Qt::TextSingleLine, QObject::tr ("Auto"));
} else {
pxpainter.setBrush (QBrush (c));
QRectF r (0, 0, rt.width () - pxpainter.pen ().widthF (), rt.height () - pxpainter.pen ().widthF ());
pxpainter.drawRect (r);
}