client/gui-qt/themes.cpp

   1 /**********************************************************************
   2  Freeciv - Copyright (C) 2005 The Freeciv Team
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 2, or (at your option)
   6    any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12 ***********************************************************************/
  13 #ifdef HAVE_CONFIG_H
  14 #include <fc_config.h>
  15 #endif
  16
  17 // Qt
  18 #include <QApplication>
  19 #include <QDir>
  20 #include <QStyleFactory>
  21
  22 /* utility */
  23 #include "mem.h"
  24
  25 /* client */
  26 #include "themes_common.h"
  27
  28 // gui-qt
  29 #include "qtg_cxxside.h"
  30
  31 /* client/include */
  32 #include "themes_g.h"
  33
  34 static QString stylestring;
  35 static QString real_data_dir;
  36 extern QApplication *qapp;
  37 extern QString current_theme;
  38 extern QApplication *current_app();
  39 static QString def_app_style;
  40
  41 /*****************************************************************************
  42   Loads a qt theme directory/theme_name
  43 *****************************************************************************/
  44 void qtg_gui_load_theme(const char *directory, const char *theme_name)
  45 {
  46   QString name;
  47   QString res_name;
  48   QString path;
  49   QString fake_dir;
  50   QDir dir;
  51   QFile f;
  52   QString lnb = "LittleFinger";
  53   QPalette pal;
  54
  55   if (def_app_style.isEmpty()) {
  56     def_app_style = QApplication::style()->objectName();
  57   }
  58
  59   if (real_data_dir.isEmpty()) {
  60     real_data_dir = QString(directory);
  61   }
  62
  63   path = real_data_dir + DIR_SEPARATOR + theme_name + DIR_SEPARATOR;
  64   name = path + "resource.qss";
  65   f.setFileName(name);
  66
  67   if (!f.open(QIODevice::ReadOnly | QIODevice::Text)) {
  68     if (QString(theme_name) != QString("NightStalker")) {
  69       qtg_gui_clear_theme();
  70     }
  71     return;
  72   }
  73   /* Stylesheet uses UNIX separators */
  74   fake_dir = real_data_dir;
  75   fake_dir.replace(QString(DIR_SEPARATOR), "/");
  76   QTextStream in(&f);
  77   stylestring = in.readAll();
  78   stylestring.replace(lnb, fake_dir + "/" + theme_name + "/");
  79
  80   if (QString(theme_name) == QString("System")) {
  81     QApplication::setStyle(QStyleFactory::create(def_app_style));
  82   } else {
  83     QApplication::setStyle(QStyleFactory::create("Fusion"));
  84   }
  85
  86   current_theme = theme_name;
  87   current_app()->setStyleSheet(stylestring);
  88   if (gui()) {
  89     gui()->reload_sidebar_icons();
  90   }
  91   pal.setBrush(QPalette::Link, QColor(92,170,229));
  92   pal.setBrush(QPalette::LinkVisited, QColor(54,150,229));
  93   QApplication::setPalette(pal);
  94 }
  95
  96 /*****************************************************************************
  97   Clears a theme (sets default system theme)
  98 *****************************************************************************/
  99 void qtg_gui_clear_theme()
 100 {
 101   QString name, str;
 102
 103   str = QString("themes") + DIR_SEPARATOR + "gui-qt" + DIR_SEPARATOR;
 104   name = fileinfoname(get_data_dirs(), str.toLocal8Bit().data());
 105   qtg_gui_load_theme(name.toLocal8Bit().data(),
 106                      "NightStalker");
 107 }
 108
 109 /*****************************************************************************
 110   Each gui has its own themes directories.
 111
 112   Returns an array containing these strings and sets array size in count.
 113   The caller is responsible for freeing the array and the paths.
 114 *****************************************************************************/
 115 char **qtg_get_gui_specific_themes_directories(int *count)
 116 {
 117   char **array;
 118   char *persistent = static_cast<char*>(fc_malloc(256));
 119
 120   *count = 1;
 121   array = new char *[*count];
 122   strncpy(persistent, fileinfoname(get_data_dirs(),""), 256);
 123   array[0] = persistent;
 124   return array;
 125 }
 126
 127 /*****************************************************************************
 128   Return an array of names of usable themes in the given directory.
 129   Array size is stored in count.
 130   The caller is responsible for freeing the array and the names
 131 *****************************************************************************/
 132 char **qtg_get_useable_themes_in_directory(const char *directory, int *count)
 133 {
 134   QStringList sl, theme_list;
 135   char **array;
 136   char *data;
 137   QByteArray qba;;
 138   QString str;
 139   QString name;
 140   QDir dir;
 141   QFile f;
 142
 143   str = QString("themes") + DIR_SEPARATOR + "gui-qt" + DIR_SEPARATOR;
 144   name = fileinfoname(get_data_dirs(), str.toLocal8Bit().data());
 145
 146   dir.setPath(name);
 147   sl << dir.entryList(QDir::AllDirs | QDir::NoDotAndDotDot);
 148   name = name;
 149
 150   foreach(str, sl) {
 151     f.setFileName(name + str + DIR_SEPARATOR + "resource.qss");
 152     if (f.exists() == false) {
 153       continue;
 154     }
 155     theme_list << str;
 156   }
 157
 158   array = new char *[theme_list.count()];
 159   *count = theme_list.count();
 160
 161   for (int i = 0; i < *count; i++) {
 162     qba = theme_list[i].toLocal8Bit();
 163     data = new char[theme_list[i].toLocal8Bit().count() + 1];
 164     strcpy(data, theme_list[i].toLocal8Bit().data());
 165     array[i] = data;
 166   }
 167
 168   return array;
 169 }