src/qt/networkstyle.cpp

   1 // Copyright (c) 2014 The Bitcoin Core developers
   2 // Distributed under the MIT software license, see the accompanying
   3 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
   4
   5 #include "networkstyle.h"
   6
   7 #include "guiconstants.h"
   8 #include "scicon.h"
   9
  10 #include <QApplication>
  11
  12 static const struct {
  13     const char *networkId;
  14     const char *appName;
  15     const int iconColorHueShift;
  16     const int iconColorSaturationReduction;
  17     const char *titleAddText;
  18 } network_styles[] = {
  19     {"main", QAPP_APP_NAME_DEFAULT, 0, 0, ""},
  20     {"test", QAPP_APP_NAME_TESTNET, 70, 30, QT_TRANSLATE_NOOP("SplashScreen", "[testnet]")},
  21     {"regtest", QAPP_APP_NAME_TESTNET, 160, 30, "[regtest]"}
  22 };
  23 static const unsigned network_styles_count = sizeof(network_styles)/sizeof(*network_styles);
  24
  25 // titleAddText needs to be const char* for tr()
  26 NetworkStyle::NetworkStyle(const QString &appName, const int iconColorHueShift, const int iconColorSaturationReduction, const char *titleAddText):
  27     appName(appName),
  28     titleAddText(qApp->translate("SplashScreen", titleAddText))
  29 {
  30     // load pixmap
  31     QPixmap pixmap(":/icons/bitcoin");
  32
  33     if(iconColorHueShift != 0 && iconColorSaturationReduction != 0)
  34     {
  35         // generate QImage from QPixmap
  36         QImage img = pixmap.toImage();
  37
  38         int h,s,l,a;
  39
  40         // traverse though lines
  41         for(int y=0;y<img.height();y++)
  42         {
  43             QRgb *scL = reinterpret_cast< QRgb *>( img.scanLine( y ) );
  44
  45             // loop through pixels
  46             for(int x=0;x<img.width();x++)
  47             {
  48                 // preserve alpha because QColor::getHsl doesen't return the alpha value
  49                 a = qAlpha(scL[x]);
  50                 QColor col(scL[x]);
  51
  52                 // get hue value
  53                 col.getHsl(&h,&s,&l);
  54
  55                 // rotate color on RGB color circle
  56                 // 70° should end up with the typical "testnet" green
  57                 h+=iconColorHueShift;
  58
  59                 // change saturation value
  60                 if(s>iconColorSaturationReduction)
  61                 {
  62                     s -= iconColorSaturationReduction;
  63                 }
  64                 col.setHsl(h,s,l,a);
  65
  66                 // set the pixel
  67                 scL[x] = col.rgba();
  68             }
  69         }
  70
  71         //convert back to QPixmap
  72 #if QT_VERSION >= 0x040700
  73         pixmap.convertFromImage(img);
  74 #else
  75         pixmap = QPixmap::fromImage(img);
  76 #endif
  77     }
  78
  79     appIcon             = QIcon(pixmap);
  80     trayAndWindowIcon   = QIcon(pixmap.scaled(QSize(256,256)));
  81 }
  82
  83 const NetworkStyle *NetworkStyle::instantiate(const QString &networkId)
  84 {
  85     for (unsigned x=0; x<network_styles_count; ++x)
  86     {
  87         if (networkId == network_styles[x].networkId)
  88         {
  89             return new NetworkStyle(
  90                     network_styles[x].appName,
  91                     network_styles[x].iconColorHueShift,
  92                     network_styles[x].iconColorSaturationReduction,
  93                     network_styles[x].titleAddText);
  94         }
  95     }
  96     return 0;
  97 }