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// Copyright (c) 2015-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <qt/platformstyle.h>
#include <qt/guiconstants.h>
#include <QApplication>
#include <QColor>
#include <QImage>
#include <QPalette>
static const struct {
const char *platformId;
/** Show images on push buttons */
const bool imagesOnButtons;
/** Colorize single-color icons */
const bool colorizeIcons;
/** Extra padding/spacing in transactionview */
const bool useExtraSpacing;
} platform_styles[] = {
{"macosx", false, false, true},
{"windows", true, false, false},
/* Other: linux, unix, ... */
{"other", true, true, false}
};
static const unsigned platform_styles_count = sizeof(platform_styles)/sizeof(*platform_styles);
namespace {
/* Local functions for colorizing single-color images */
void MakeSingleColorImage(QImage& img, const QColor& colorbase)
{
img = img.convertToFormat(QImage::Format_ARGB32);
for (int x = img.width(); x--; )
{
for (int y = img.height(); y--; )
{
const QRgb rgb = img.pixel(x, y);
img.setPixel(x, y, qRgba(colorbase.red(), colorbase.green(), colorbase.blue(), qAlpha(rgb)));
}
}
}
QIcon ColorizeIcon(const QIcon& ico, const QColor& colorbase)
{
QIcon new_ico;
for (const QSize sz : ico.availableSizes())
{
QImage img(ico.pixmap(sz).toImage());
MakeSingleColorImage(img, colorbase);
new_ico.addPixmap(QPixmap::fromImage(img));
}
return new_ico;
}
QImage ColorizeImage(const QString& filename, const QColor& colorbase)
{
QImage img(filename);
MakeSingleColorImage(img, colorbase);
return img;
}
QIcon ColorizeIcon(const QString& filename, const QColor& colorbase)
{
return QIcon(QPixmap::fromImage(ColorizeImage(filename, colorbase)));
}
}
PlatformStyle::PlatformStyle(const QString &_name, bool _imagesOnButtons, bool _colorizeIcons, bool _useExtraSpacing):
name(_name),
imagesOnButtons(_imagesOnButtons),
colorizeIcons(_colorizeIcons),
useExtraSpacing(_useExtraSpacing),
singleColor(0,0,0),
textColor(0,0,0)
{
// Determine icon highlighting color
if (colorizeIcons) {
const QColor colorHighlightBg(QApplication::palette().color(QPalette::Highlight));
const QColor colorHighlightFg(QApplication::palette().color(QPalette::HighlightedText));
const QColor colorText(QApplication::palette().color(QPalette::WindowText));
const int colorTextLightness = colorText.lightness();
QColor colorbase;
if (abs(colorHighlightBg.lightness() - colorTextLightness) < abs(colorHighlightFg.lightness() - colorTextLightness))
colorbase = colorHighlightBg;
else
colorbase = colorHighlightFg;
singleColor = colorbase;
}
// Determine text color
textColor = QColor(QApplication::palette().color(QPalette::WindowText));
}
QImage PlatformStyle::SingleColorImage(const QString& filename) const
{
if (!colorizeIcons)
return QImage(filename);
return ColorizeImage(filename, SingleColor());
}
QIcon PlatformStyle::SingleColorIcon(const QString& filename) const
{
if (!colorizeIcons)
return QIcon(filename);
return ColorizeIcon(filename, SingleColor());
}
QIcon PlatformStyle::SingleColorIcon(const QIcon& icon) const
{
if (!colorizeIcons)
return icon;
return ColorizeIcon(icon, SingleColor());
}
QIcon PlatformStyle::TextColorIcon(const QString& filename) const
{
return ColorizeIcon(filename, TextColor());
}
QIcon PlatformStyle::TextColorIcon(const QIcon& icon) const
{
return ColorizeIcon(icon, TextColor());
}
const PlatformStyle *PlatformStyle::instantiate(const QString &platformId)
{
for (unsigned x=0; x<platform_styles_count; ++x)
{
if (platformId == platform_styles[x].platformId)
{
return new PlatformStyle(
platform_styles[x].platformId,
platform_styles[x].imagesOnButtons,
platform_styles[x].colorizeIcons,
platform_styles[x].useExtraSpacing);
}
}
return 0;
}
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