git.maemo.org Git - jspeed/blob - src/theme.cpp

   1 /*
   2  * This file is part of jSpeed.
   3  *
   4  * jSpeed is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * jSpeed is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with jSpeed.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 #include <QtCore/QDir>
  20 #include <QtCore/QString>
  21 #include <QtCore/QDebug>
  22 #include <QtGui/QApplication>
  23 #include <QtGui/QDesktopWidget>
  24 #include <QtGui/QStackedWidget>
  25 #include <QtXml/QDomNode>
  26 #include <QtXml/QDomDocument>
  27 #include <QtXml/QDomAttr>
  28 #include <QMaemo5InformationBox>
  29 #include "theme.h"
  30 #include "reader.h"
  31 #include "zipreader.h"
  32 #include "filereader.h"
  33 #include "themescreen.h"
  34 #include "settings.h"
  35
  36 namespace
  37 {
  38     QString const RESOURCE_DIR = ":/resources/themes/";
  39     QString const THEME_SUFFIX = ".jspeed";
  40 }
  41
  42 Theme::Theme(QWidget* parent): WidgetScreen(parent),
  43 portraitId_(-1), landscapeId_(-1), reader_(0),
  44 portrait_(0), landscape_(0), portraitMode_(false)
  45 {
  46 }
  47
  48 Theme::~Theme()
  49 {
  50 }
  51
  52 bool Theme::load()
  53 {
  54     if(landscape_)
  55     {
  56         removeWidget(landscape_);
  57         delete landscape_;
  58         landscape_ = 0;
  59         landscapeId_ = -1;
  60     }
  61
  62     if(portrait_)
  63     {
  64         removeWidget(portrait_);
  65         delete portrait_;
  66         portrait_ = 0;
  67         portraitId_ = -1;
  68     }
  69
  70     QString theme = Settings::instance().value("theme", "default").toString();
  71
  72     QString themeDir = getThemeDir();
  73
  74     if(QFile::exists(themeDir + theme + THEME_SUFFIX))
  75     {
  76         reader_ = new ZipReader(themeDir + theme + THEME_SUFFIX);
  77
  78         if(read())
  79         {
  80             qDebug() << "Ladattiin " << theme;
  81             return true;
  82         }
  83         else
  84         {
  85             QMaemo5InformationBox::information(this,
  86                                                tr("Unable to load theme: %1.").arg(error_),
  87                                                QMaemo5InformationBox::NoTimeout);
  88         }
  89     }
  90
  91     theme = "default";
  92     Settings::instance().setValue("theme", theme);
  93
  94     if(QFile::exists(RESOURCE_DIR + theme))
  95     {
  96         if(reader_)
  97         {
  98             delete reader_;
  99         }
 100
 101         reader_ = new FileReader(RESOURCE_DIR + theme);
 102         return read();
 103     }
 104
 105     error_ = "No themes found";
 106
 107     return false;
 108 }
 109
 110 bool Theme::read()
 111 {
 112     Q_ASSERT(reader_ != 0);
 113
 114     if(!reader_->open())
 115     {
 116         error_ = reader_->errorString();
 117         return false;
 118     }
 119
 120     QByteArray xmlData;
 121
 122     if(!reader_->readFile("theme.xml", xmlData))
 123     {
 124         error_ = "Unable to find <b>theme.xml</b> from theme file";
 125         return false;
 126     }
 127
 128     QDomDocument doc;
 129     int line = 0;
 130     int column = 0;
 131     QString msg;
 132
 133     if(!doc.setContent(xmlData, false, &msg, &line, &column))
 134     {
 135         error_ = "Invalid xml file, " + msg + " (line "+line+", column "+column+")";
 136         return false;
 137     }
 138
 139     QDomNodeList orientations = doc.elementsByTagName("orientation");
 140
 141     if(orientations.isEmpty())
 142     {
 143         error_ = "No <orientation> tags found";
 144         return false;
 145     }
 146
 147     bool ok = true;
 148
 149     for(int i = 0; i < orientations.size(); i++)
 150     {
 151         QDomNode data = orientations.at(i);
 152         QString type = data.attributes().namedItem("name").toAttr().value();
 153
 154         if(type == "landscape")
 155         {
 156             if(landscape_)
 157             {
 158                 error_ = "More than one <orientation name=\"landscape\"> specified";
 159                 ok = false;
 160             }
 161
 162             landscape_ = new ThemeScreen();
 163             ok = ok && landscape_->load(data, reader_);
 164
 165         }
 166         else if(type == "portrait")
 167         {
 168             if(portrait_)
 169             {
 170                 error_ = "More than one <orientation name=\"portrait\"> specified";
 171                 ok = false;
 172             }
 173
 174             portrait_ = new ThemeScreen();
 175             ok = ok && portrait_->load(data, reader_);
 176         }
 177         else
 178         {
 179             error_ = "Invalid orientation: " + type;
 180             ok = false;
 181         }
 182     }
 183
 184     reader_->close();
 185     delete reader_;
 186     reader_ = 0;
 187
 188     if(!portrait_ && !landscape_)
 189     {
 190         error_ = "No valid orientation tags found";
 191         ok = false;
 192     }
 193
 194     if(ok)
 195     {
 196         if(landscape_)
 197         {
 198             landscapeId_ = addWidget(landscape_);
 199             connectSignals(landscape_);
 200         }
 201
 202         if(portrait_)
 203         {
 204             portraitId_ = addWidget(portrait_);
 205             connectSignals(portrait_);
 206         }
 207     }
 208     else
 209     {
 210         delete portrait_;
 211         portrait_ = 0;
 212         delete landscape_;
 213         landscape_ = 0;
 214     }
 215
 216     return ok;
 217 }
 218
 219 QString Theme::getThemeDir()
 220 {
 221     return Settings::getDir() + "themes" + QDir::separator();
 222 }
 223
 224 QString const& Theme::getThemeSuffix()
 225 {
 226     return THEME_SUFFIX;
 227 }
 228
 229 QString const& Theme::error() const
 230 {
 231     return error_;
 232 }
 233
 234 bool Theme::portraitEnabled() const
 235 {
 236     return portraitId_ != -1;
 237 }
 238
 239 bool Theme::landscapeEnabled() const
 240 {
 241     return landscapeId_ != -1;
 242 }
 243
 244 void Theme::reArrange()
 245 {
 246     QRect rect = QApplication::desktop()->screenGeometry();
 247
 248     bool portrait = rect.height() > rect.width();
 249
 250     if(portrait != portraitMode_)
 251     {
 252         if((portrait && portraitId_ == -1) ||
 253            (!portrait && landscapeId_ == -1))
 254         {
 255             return;
 256         }
 257
 258         portraitMode_ = portrait;
 259
 260         if(portrait)
 261         {
 262             setCurrentIndex(portraitId_);
 263             portrait_->reArrange();
 264         }
 265         else
 266         {
 267             setCurrentIndex(landscapeId_);
 268             landscape_->reArrange();
 269         }
 270     }
 271 }
 272
 273 void Theme::flip()
 274 {
 275     if(portrait_)
 276     {
 277         portrait_->flip();
 278     }
 279
 280     if(landscape_)
 281     {
 282         landscape_->flip();
 283     }
 284 }
 285
 286 void Theme::connectSignals(ThemeScreen* screen)
 287 {
 288     connect(screen, SIGNAL(minimizePressed()), this, SIGNAL(minimizePressed()));
 289     connect(screen, SIGNAL(settingsPressed()), this, SIGNAL(settingsPressed()));
 290     connect(screen, SIGNAL(closePressed()), this, SIGNAL(closePressed()));
 291     connect(screen, SIGNAL(clicked()), this, SIGNAL(clicked()));
 292 }
 293