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 "detailscreen.h"
  35 #include "settings.h"
  36
  37 namespace
  38 {
  39     QString const RESOURCE_DIR = ":/resources/themes/";
  40     QString const THEME_SUFFIX = ".jspeed";
  41 }
  42
  43 Theme::Theme(DetailScreen* detailScreen, QWidget* parent): WidgetScreen(parent),
  44 portraitId_(-1), landscapeId_(-1), reader_(0),
  45 portrait_(0), landscape_(0), detailScreen_(detailScreen), portraitMode_(false)
  46 {
  47 }
  48
  49 Theme::~Theme()
  50 {
  51 }
  52
  53 bool Theme::load()
  54 {
  55     if(landscape_)
  56     {
  57         removeWidget(landscape_);
  58         delete landscape_;
  59         landscape_ = 0;
  60         landscapeId_ = -1;
  61     }
  62
  63     if(portrait_)
  64     {
  65         removeWidget(portrait_);
  66         delete portrait_;
  67         portrait_ = 0;
  68         portraitId_ = -1;
  69     }
  70
  71     QString theme = Settings::instance().value("theme", "default").toString();
  72
  73     QString themeDir = getThemeDir();
  74
  75     if(QFile::exists(themeDir + theme + THEME_SUFFIX))
  76     {
  77         reader_ = new ZipReader(themeDir + theme + THEME_SUFFIX);
  78
  79         if(read())
  80         {
  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 detailConfigs = doc.elementsByTagName("detailscreen");
 140
 141     if(detailConfigs.size() > 1)
 142     {
 143         error_ = "Multiple <detailscreen> tags specified";
 144         return false;
 145     }
 146
 147     if(detailConfigs.size() == 1)
 148     {
 149         detailScreen_->removeElements();
 150
 151         QDomNode color = detailConfigs.at(0).attributes().namedItem("color");
 152
 153         if(!color.isNull())
 154         {
 155             detailScreen_->setColor(color.toAttr().value());
 156         }
 157
 158         detailScreen_->load(detailConfigs.at(0), reader_);
 159     }
 160
 161     QDomNodeList orientations = doc.elementsByTagName("orientation");
 162
 163     if(orientations.isEmpty())
 164     {
 165         error_ = "No <orientation> tags found";
 166         return false;
 167     }
 168
 169     bool ok = true;
 170
 171     for(int i = 0; i < orientations.size(); i++)
 172     {
 173         QDomNode data = orientations.at(i);
 174         QString type = data.attributes().namedItem("name").toAttr().value();
 175
 176         if(type == "landscape")
 177         {
 178             if(landscape_)
 179             {
 180                 error_ = "More than one <orientation name=\"landscape\"> specified";
 181                 ok = false;
 182             }
 183
 184             landscape_ = new ThemeScreen();
 185             ok = ok && landscape_->load(data, reader_);
 186
 187         }
 188         else if(type == "portrait")
 189         {
 190             if(portrait_)
 191             {
 192                 error_ = "More than one <orientation name=\"portrait\"> specified";
 193                 ok = false;
 194             }
 195
 196             portrait_ = new ThemeScreen();
 197             ok = ok && portrait_->load(data, reader_);
 198         }
 199         else
 200         {
 201             error_ = "Invalid orientation: " + type;
 202             ok = false;
 203         }
 204     }
 205
 206     reader_->close();
 207     delete reader_;
 208     reader_ = 0;
 209
 210     if(!portrait_ && !landscape_)
 211     {
 212         error_ = "No valid orientation tags found";
 213         ok = false;
 214     }
 215
 216     if(ok)
 217     {
 218         if(landscape_)
 219         {
 220             landscapeId_ = addWidget(landscape_);
 221             connectSignals(landscape_);
 222         }
 223
 224         if(portrait_)
 225         {
 226             portraitId_ = addWidget(portrait_);
 227             connectSignals(portrait_);
 228         }
 229
 230         if(landscape_ && portrait_)
 231         {
 232             QRect rect = QApplication::desktop()->screenGeometry();
 233
 234             if(rect.height() > rect.width())
 235             {
 236                 setCurrentIndex(portraitId_);
 237                 portraitMode_ = true;
 238             }
 239             else
 240             {
 241                 setCurrentIndex(landscapeId_);
 242                 portraitMode_ = false;
 243             }
 244         }
 245     }
 246     else
 247     {
 248         delete portrait_;
 249         portrait_ = 0;
 250         delete landscape_;
 251         landscape_ = 0;
 252     }
 253
 254     return ok;
 255 }
 256
 257 QString Theme::getThemeDir()
 258 {
 259     return Settings::getDir() + "themes" + QDir::separator();
 260 }
 261
 262 QString const& Theme::getThemeSuffix()
 263 {
 264     return THEME_SUFFIX;
 265 }
 266
 267 QString const& Theme::error() const
 268 {
 269     return error_;
 270 }
 271
 272 bool Theme::portraitEnabled() const
 273 {
 274     return portrait_ != 0;
 275 }
 276
 277 bool Theme::landscapeEnabled() const
 278 {
 279     return landscape_ != 0;
 280 }
 281
 282 void Theme::reArrange()
 283 {
 284     QRect rect = QApplication::desktop()->screenGeometry();
 285
 286     bool portrait = rect.height() > rect.width();
 287
 288     if(portrait != portraitMode_)
 289     {
 290         if((portrait && portraitId_ == -1) ||
 291            (!portrait && landscapeId_ == -1))
 292         {
 293             return;
 294         }
 295
 296         portraitMode_ = portrait;
 297
 298         if(portrait)
 299         {
 300             setCurrentIndex(portraitId_);
 301             portrait_->reArrange();
 302         }
 303         else
 304         {
 305             setCurrentIndex(landscapeId_);
 306             landscape_->reArrange();
 307         }
 308     }
 309 }
 310
 311 void Theme::flip()
 312 {
 313     if(portrait_)
 314     {
 315         portrait_->flip();
 316     }
 317
 318     if(landscape_)
 319     {
 320         landscape_->flip();
 321     }
 322 }
 323
 324 void Theme::connectSignals(ThemeScreen* screen)
 325 {
 326     connect(screen, SIGNAL(minimizePressed()), this, SIGNAL(minimizePressed()));
 327     connect(screen, SIGNAL(settingsPressed()), this, SIGNAL(settingsPressed()));
 328     connect(screen, SIGNAL(closePressed()), this, SIGNAL(closePressed()));
 329     connect(screen, SIGNAL(clicked()), this, SIGNAL(clicked()));
 330 }
 331