src/qt/networkstyle.cpp

   1 // Copyright (c) 2014-2016 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
   9 #include <QApplication>
  10
  11 static const struct {
  12     const char *networkId;
  13     const char *appName;
  14     const int iconColorHueShift;
  15     const int iconColorSaturationReduction;
  16     const char *titleAddText;
  17 } network_styles[] = {
  18     {"main", QAPP_APP_NAME_DEFAULT, 0, 0, ""},
  19     {"test", QAPP_APP_NAME_TESTNET, 70, 30, QT_TRANSLATE_NOOP("SplashScreen", "[testnet]")},
  20     {"regtest", QAPP_APP_NAME_TESTNET, 160, 30, "[regtest]"}
  21 };
  22 static const unsigned network_styles_count = sizeof(network_styles)/sizeof(*network_styles);
  23
  24 // titleAddText needs to be const char* for tr()
  25 NetworkStyle::NetworkStyle(const QString &_appName, const int iconColorHueShift, const int iconColorSaturationReduction, const char *_titleAddText):
  26     appName(_appName),
  27     titleAddText(qApp->translate("SplashScreen", _titleAddText))
  28 {
  29     // load pixmap
  30     QPixmap pixmap(":/icons/bitcoin");
  31
  32     if(iconColorHueShift != 0 && iconColorSaturationReduction != 0)
  33     {
  34         // generate QImage from QPixmap
  35         QImage img = pixmap.toImage();
  36
  37         int h,s,l,a;
  38
  39         // traverse though lines
  40         for(int y=0;y<img.height();y++)
  41         {
  42             QRgb *scL = reinterpret_cast< QRgb *>( img.scanLine( y ) );
  43
  44             // loop through pixels
  45             for(int x=0;x<img.width();x++)
  46             {
  47                 // preserve alpha because QColor::getHsl doesen't return the alpha value
  48                 a = qAlpha(scL[x]);
  49                 QColor col(scL[x]);
  50
  51                 // get hue value
  52                 col.getHsl(&h,&s,&l);
  53
  54                 // rotate color on RGB color circle
  55                 // 70° should end up with the typical "testnet" green
  56                 h+=iconColorHueShift;
  57
  58                 // change saturation value
  59                 if(s>iconColorSaturationReduction)
  60                 {
  61                     s -= iconColorSaturationReduction;
  62                 }
  63                 col.setHsl(h,s,l,a);
  64
  65                 // set the pixel
  66                 scL[x] = col.rgba();
  67             }
  68         }
  69
  70         //convert back to QPixmap
  71 #if QT_VERSION >= 0x040700
  72         pixmap.convertFromImage(img);
  73 #else
  74         pixmap = QPixmap::fromImage(img);
  75 #endif
  76     }
  77
  78     appIcon             = QIcon(pixmap);
  79     trayAndWindowIcon   = QIcon(pixmap.scaled(QSize(256,256)));
  80 }
  81
  82 const NetworkStyle *NetworkStyle::instantiate(const QString &networkId)
  83 {
  84     for (unsigned x=0; x<network_styles_count; ++x)
  85     {
  86         if (networkId == network_styles[x].networkId)
  87         {
  88             return new NetworkStyle(
  89                     network_styles[x].appName,
  90                     network_styles[x].iconColorHueShift,
  91                     network_styles[x].iconColorSaturationReduction,
  92                     network_styles[x].titleAddText);
  93         }
  94     }
  95     return 0;
  96 }