92 lines
2.6 KiB
C++
92 lines
2.6 KiB
C++
#include "obs-proxy-style.hpp"
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#include <QStyleOptionButton>
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static inline uint qt_intensity(uint r, uint g, uint b)
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{
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/* 30% red, 59% green, 11% blue */
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return (77 * r + 150 * g + 28 * b) / 255;
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}
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/* The constants in the default QT styles don't dim the icons enough in
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* disabled mode
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*
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* https://code.woboq.org/qt5/qtbase/src/widgets/styles/qcommonstyle.cpp.html#6429
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*/
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QPixmap
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OBSContextBarProxyStyle::generatedIconPixmap(QIcon::Mode iconMode,
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const QPixmap &pixmap,
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const QStyleOption *option) const
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{
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if (iconMode == QIcon::Disabled) {
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QImage im =
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pixmap.toImage().convertToFormat(QImage::Format_ARGB32);
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/* Create a colortable based on the background
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* (black -> bg -> white) */
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QColor bg = option->palette.color(QPalette::Disabled,
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QPalette::Window);
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int red = bg.red();
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int green = bg.green();
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int blue = bg.blue();
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uchar reds[256], greens[256], blues[256];
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for (int i = 0; i < 128; ++i) {
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reds[i] = uchar((red * (i << 1)) >> 8);
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greens[i] = uchar((green * (i << 1)) >> 8);
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blues[i] = uchar((blue * (i << 1)) >> 8);
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}
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for (int i = 0; i < 128; ++i) {
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reds[i + 128] = uchar(qMin(red + (i << 1), 255));
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greens[i + 128] = uchar(qMin(green + (i << 1), 255));
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blues[i + 128] = uchar(qMin(blue + (i << 1), 255));
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}
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/* High intensity colors needs dark shifting in the color
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* table, while low intensity colors needs light shifting. This
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* is to increase the perceived contrast. */
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int intensity = qt_intensity(red, green, blue);
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const int factor = 191;
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if ((red - factor > green && red - factor > blue) ||
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(green - factor > red && green - factor > blue) ||
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(blue - factor > red && blue - factor > green))
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qMin(255, intensity + 20);
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else if (intensity <= 128)
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intensity += 100;
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for (int y = 0; y < im.height(); ++y) {
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QRgb *scanLine = (QRgb *)im.scanLine(y);
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for (int x = 0; x < im.width(); ++x) {
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QRgb pixel = *scanLine;
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/* Calculate color table index, taking
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* intensity adjustment and a magic offset into
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* account. */
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uint ci = uint(qGray(pixel) / 3 +
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(130 - intensity / 3));
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*scanLine = qRgba(reds[ci], greens[ci],
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blues[ci], qAlpha(pixel));
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++scanLine;
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}
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}
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return QPixmap::fromImage(im);
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}
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return QProxyStyle::generatedIconPixmap(iconMode, pixmap, option);
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}
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int OBSIgnoreWheelProxyStyle::styleHint(StyleHint hint,
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const QStyleOption *option,
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const QWidget *widget,
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QStyleHintReturn *returnData) const
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{
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#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
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if (hint == SH_ComboBox_AllowWheelScrolling)
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return 0;
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#endif
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return QProxyStyle::styleHint(hint, option, widget, returnData);
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}
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