src/pmchart/colorscheme.cpp

   1 /*
   2  * Copyright (c) 2007, Aconex.  All Rights Reserved.
   3  * Copyright (c) 2013, Red Hat, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  */
  15
  16 #include "colorscheme.h"
  17 #include "main.h"
  18
  19 ColorScheme::ColorScheme()
  20 {
  21     my.isModified = false;
  22     my.name = QString::null;
  23 }
  24
  25 bool ColorScheme::lookupScheme(QString name)
  26 {
  27     for (int i = 0; i < globalSettings.colorSchemes.size(); i++)
  28         if (name == globalSettings.colorSchemes[i].name())
  29             return true;
  30     return false;
  31 }
  32
  33 ColorScheme *ColorScheme::findScheme(QString name)
  34 {
  35     for (int i = 0; i < globalSettings.colorSchemes.size(); i++)
  36         if (name == globalSettings.colorSchemes[i].name())
  37             return &globalSettings.colorSchemes[i];
  38     return NULL;
  39 }
  40
  41 bool ColorScheme::removeScheme(QString name)
  42 {
  43     for (int i = 0; i < globalSettings.colorSchemes.size(); i++)
  44         if (name == globalSettings.colorSchemes[i].name()) {
  45             globalSettings.colorSchemes.removeAt(i);
  46             return true;
  47         }
  48     return false;
  49 }
  50
  51 static inline int hexval(float f)
  52 {
  53     return ((int)(0.5 + f*256) < 256 ? (int)(0.5 + f*256) : 256);
  54 }
  55
  56 QColor ColorScheme::colorSpec(QString name)
  57 {
  58     QColor color;
  59     QString rgbi = name;
  60
  61     if (rgbi.left(5) != "rgbi:")
  62         color.setNamedColor(name);
  63     else {
  64         float fr, fg, fb;
  65         if (sscanf((const char *)rgbi.toLatin1(), "rgbi:%f/%f/%f", &fr, &fg, &fb) == 3)
  66             color.setRgb(hexval(fr), hexval(fg), hexval(fb));
  67         // else return color as-is, i.e. invalid.
  68     }
  69     return color;
  70 }
  71
  72 void ColorScheme::clear()
  73 {
  74     my.colors.clear();
  75     my.colorNames.clear();
  76 }
  77
  78 void ColorScheme::setColorNames(QStringList colorNames)
  79 {
  80     my.colorNames = colorNames;
  81     for (int i = 0; i < colorNames.size(); i++)
  82         my.colors << QColor(colorNames.at(i));
  83 }
  84
  85 void ColorScheme::addColor(QColor color)
  86 {
  87     my.colors.append(color);
  88     my.colorNames.append(color.name());
  89 }
  90
  91 void ColorScheme::addColor(QString name)
  92 {
  93     my.colors.append(colorSpec(name));
  94     my.colorNames.append(name);
  95 }