qt: Introduce PlatformStyle

Introduce a PlatformStyle to handle platform-specific customization of
the UI.

This replaces 'scicon', as well as #ifdefs to determine whether to place
icons on buttons.

The selected PlatformStyle defaults to the platform that the application
was compiled on, but can be overridden from the command line with
`-uiplatform=<x>`.

Also fixes the warning from #6328.

1 files changed, 0 insertions, 98 deletions

diff --git a/src/qt/scicon.cpp b/src/qt/scicon.cpp
deleted file mode 100644
index c493b5569..000000000
--- a/src/qt/scicon.cpp
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2014 The Bitcoin developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include "scicon.h"
-
-#include <QApplication>
-#include <QColor>
-#include <QIcon>
-#include <QImage>
-#include <QPalette>
-#include <QPixmap>
-
-namespace {
-
-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)));
-        }
-    }
-}
-
-}
-
-QImage SingleColorImage(const QString& filename, const QColor& colorbase)
-{
-    QImage img(filename);
-#if !defined(WIN32) && !defined(MAC_OSX)
-    MakeSingleColorImage(img, colorbase);
-#endif
-    return img;
-}
-
-QIcon SingleColorIcon(const QIcon& ico, const QColor& colorbase)
-{
-#if defined(WIN32) || defined(MAC_OSX)
-    return ico;
-#else
-    QIcon new_ico;
-    QSize sz;
-    Q_FOREACH(sz, ico.availableSizes())
-    {
-        QImage img(ico.pixmap(sz).toImage());
-        MakeSingleColorImage(img, colorbase);
-        new_ico.addPixmap(QPixmap::fromImage(img));
-    }
-    return new_ico;
-#endif
-}
-
-QIcon SingleColorIcon(const QString& filename, const QColor& colorbase)
-{
-    return QIcon(QPixmap::fromImage(SingleColorImage(filename, colorbase)));
-}
-
-QColor SingleColor()
-{
-#if defined(WIN32) || defined(MAC_OSX)
-    return QColor(0,0,0);
-#else
-    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;
-    return colorbase;
-#endif
-}
-
-QIcon SingleColorIcon(const QString& filename)
-{
-    return SingleColorIcon(filename, SingleColor());
-}
-
-static QColor TextColor()
-{
-    return QColor(QApplication::palette().color(QPalette::WindowText));
-}
-
-QIcon TextColorIcon(const QString& filename)
-{
-    return SingleColorIcon(filename, TextColor());
-}
-
-QIcon TextColorIcon(const QIcon& ico)
-{
-    return SingleColorIcon(ico, TextColor());
-}