Work on skins.

localization/rssguard_cs.ts

@@ -72,6 +72,13 @@
         <translation>Hypertextový odkaz</translation>
     </message>
 </context>
+<context>
+    <name>CornerButton</name>
+    <message>
+        <source>Open new tab</source>
+        <translation>Otevřít nový panel</translation>
+    </message>
+</context>
 <context>
     <name>FormAbout</name>
     <message>
@@ -210,7 +217,7 @@
     </message>
     <message>
         <source>Language</source>
-        <translation>Lokalizacce</translation>
+        <translation>Lokalizace</translation>
     </message>
     <message>
         <source>Proxy</source>
@@ -424,6 +431,15 @@
         <source>no icon theme</source>
         <translation>žádné téma ikon</translation>
     </message>
+    <message>
+        <source>Some keyboard shortcuts are not unique.
+</source>
+        <translation>Některé klávesové zkrátky jsou duplicitní.</translation>
+    </message>
+    <message>
+        <source>Cannot save settings</source>
+        <translation>Nastavení nelze uložit</translation>
+    </message>
 </context>
 <context>
     <name>FormWelcome</name>
@@ -468,6 +484,13 @@
         <translation>rotter.martinos@gmail.com</translation>
     </message>
 </context>
+<context>
+    <name>SkinFactory</name>
+    <message>
+        <source>default system skin</source>
+        <translation>výchozí systémový vzhled</translation>
+    </message>
+</context>
 <context>
     <name>TabWidget</name>
     <message>

localization/rssguard_en.ts

@@ -72,6 +72,13 @@
         <translation type="unfinished"></translation>
     </message>
 </context>
+<context>
+    <name>CornerButton</name>
+    <message>
+        <source>Open new tab</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>FormAbout</name>
     <message>
@@ -418,6 +425,15 @@
         <source>no icon theme</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Some keyboard shortcuts are not unique.
+</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Cannot save settings</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>FormWelcome</name>
@@ -462,6 +478,13 @@
         <translation>rotter.martinos@gmail.com</translation>
     </message>
 </context>
+<context>
+    <name>SkinFactory</name>
+    <message>
+        <source>default system skin</source>
+        <translation type="unfinished"></translation>
+    </message>
+</context>
 <context>
     <name>TabWidget</name>
     <message>

src/gui/dynamicshortcutswidget.cpp

@@ -19,6 +19,25 @@ DynamicShortcutsWidget::~DynamicShortcutsWidget() {
   delete m_layout;
 }
 
+bool DynamicShortcutsWidget::areShortcutsUnique() {
+  QList<QKeySequence> all_shortcuts;
+
+  // Obtain all shortcuts.
+  foreach (ActionBinding binding, m_actionBindings) {
+    QKeySequence new_shortcut = binding.second->shortcut();
+
+    if (all_shortcuts.contains(new_shortcut)) {
+      // Problem, two identical shortcuts found.
+      return false;
+    }
+    else {
+      all_shortcuts.append(binding.second->shortcut());
+    }
+  }
+
+  return true;
+}
+
 void DynamicShortcutsWidget::updateShortcuts() {
   foreach (ActionBinding binding, m_actionBindings) {
     binding.first->setShortcut(binding.second->shortcut());

src/gui/dynamicshortcutswidget.h

@@ -23,6 +23,10 @@ class DynamicShortcutsWidget : public QWidget {
     // and stored back to settings when application quits.
     void updateShortcuts();
 
+    // Returns true if all shortcuts are unique,
+    // otherwise false.
+    bool areShortcutsUnique();
+
     // Populates this widget with shortcut widgets for given actions.
     // NOTE: This gets initial shortcut for each action from its properties, NOT from
     // the application settings, so shortcuts from settings need to be

src/gui/formsettings.cpp

@@ -5,6 +5,7 @@
 
 #include "gui/formsettings.h"
 #include "gui/iconthemefactory.h"
+#include "gui/skinfactory.h"
 #include "gui/systemtrayicon.h"
 #include "gui/formmain.h"
 #include "gui/webbrowser.h"
@@ -28,17 +29,31 @@ FormSettings::FormSettings(QWidget *parent) : QDialog(parent), m_ui(new Ui::Form
   m_ui->m_treeLanguages->setHeaderHidden(false);
 
 #if QT_VERSION >= 0x050000
+  // Setup languages.
   m_ui->m_treeLanguages->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setSectionResizeMode(3, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setSectionResizeMode(4, QHeaderView::ResizeToContents);
+
+  // Setup skins.
+  m_ui->m_treeSkins->header()->setSectionResizeMode(0, QHeaderView::ResizeToContents);
+  m_ui->m_treeSkins->header()->setSectionResizeMode(1, QHeaderView::ResizeToContents);
+  m_ui->m_treeSkins->header()->setSectionResizeMode(2, QHeaderView::ResizeToContents);
+  m_ui->m_treeSkins->header()->setSectionResizeMode(3, QHeaderView::ResizeToContents);
 #else
+  // Setup languages.
   m_ui->m_treeLanguages->header()->setResizeMode(0, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setResizeMode(1, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setResizeMode(2, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setResizeMode(3, QHeaderView::ResizeToContents);
   m_ui->m_treeLanguages->header()->setResizeMode(4, QHeaderView::ResizeToContents);
+
+  // Setup skins.
+  m_ui->m_treeSkins->header()->setResizeMode(0, QHeaderView::ResizeToContents);
+  m_ui->m_treeSkins->header()->setResizeMode(1, QHeaderView::ResizeToContents);
+  m_ui->m_treeSkins->header()->setResizeMode(2, QHeaderView::ResizeToContents);
+  m_ui->m_treeSkins->header()->setResizeMode(3, QHeaderView::ResizeToContents);
 #endif
 
   m_ui->m_treeLanguages->setHeaderLabels(QStringList()
@@ -48,8 +63,15 @@ FormSettings::FormSettings(QWidget *parent) : QDialog(parent), m_ui(new Ui::Form
                                          << tr("Author")
                                          << tr("Email"));
 
+  m_ui->m_treeSkins->setHeaderLabels(QStringList()
+                                     << tr("Name")
+                                     << tr("Version")
+                                     << tr("Author")
+                                     << tr("Email"));
+
   // Establish needed connections.
-  connect(this, SIGNAL(accepted()), this, SLOT(saveSettings()));
+  connect(m_ui->m_buttonBox, SIGNAL(accepted()),
+          this, SLOT(saveSettings()));
   connect(m_ui->m_cmbProxyType, SIGNAL(currentIndexChanged(int)),
           this, SLOT(onProxyTypeChanged(int)));
   connect(m_ui->m_checkShowPassword, SIGNAL(stateChanged(int)),
@@ -88,7 +110,31 @@ void FormSettings::displayProxyPassword(int state) {
   }
 }
 
+bool FormSettings::doSaveCheck() {
+  bool everything_ok = true;
+  QString resulting_information;
+
+  everything_ok &= m_ui->m_shortcuts->areShortcutsUnique();
+
+  if (!m_ui->m_shortcuts->areShortcutsUnique()) {
+    resulting_information = resulting_information.append(tr("Some keyboard shortcuts are not unique.\n"));
+  }
+
+  if (!everything_ok) {
+    QMessageBox::warning(this,
+                         tr("Cannot save settings"),
+                         resulting_information);
+  }
+
+  return everything_ok;
+}
+
 void FormSettings::saveSettings() {
+  // Make sure everything is saveable.
+  if (!doSaveCheck()) {
+    return;
+  }
+
   // Save all settings.
   saveGeneral();
   saveShortcuts();
@@ -98,6 +144,8 @@ void FormSettings::saveSettings() {
   saveLanguage();
 
   Settings::getInstance()->checkSettings();
+
+  accept();
 }
 
 void FormSettings::onProxyTypeChanged(int index) {
@@ -349,6 +397,26 @@ void FormSettings::loadInterface() {
       m_ui->m_cmbIconTheme->setCurrentIndex(theme_index);
     }
 #endif
+
+    // Load skin.
+    QList<Skin> installed_skins = SkinFactory::getInstance()->getInstalledSkins();
+    QString active_skin = SkinFactory::getInstance()->getCurrentSkinName();
+
+    foreach (Skin skin, installed_skins) {
+      QTreeWidgetItem *new_item = new QTreeWidgetItem(QStringList() <<
+                                                     skin.m_visibleName <<
+                                                     skin.m_version <<
+                                                     skin.m_author <<
+                                                     skin.m_email);
+      new_item->setData(0, Qt::UserRole, QVariant::fromValue(skin));
+
+      // Add this skin and mark it as active if its active now.
+      m_ui->m_treeSkins->addTopLevelItem(new_item);
+
+      if (skin.m_baseName == active_skin) {
+        m_ui->m_treeSkins->setCurrentItem(new_item);
+      }
+    }
   }
 
   // Load tab settings.
@@ -387,6 +455,10 @@ void FormSettings::saveInterface() {
   QString selected_icon_theme = m_ui->m_cmbIconTheme->itemData(m_ui->m_cmbIconTheme->currentIndex()).toString();
   IconThemeFactory::getInstance()->setCurrentIconTheme(selected_icon_theme);
 
+  // Save and activate new skin.
+  Skin active_skin = m_ui->m_treeSkins->currentItem()->data(0, Qt::UserRole).value<Skin>();
+  SkinFactory::getInstance()->setCurrentSkinName(active_skin.m_baseName);
+
   // Save tab settings.
   settings->setValue(APP_CFG_GUI, "tab_close_mid_button",
                      m_ui->m_checkCloseTabsMiddleClick->isChecked());

src/gui/formsettings.h

@@ -22,6 +22,9 @@ class FormSettings : public QDialog {
     explicit FormSettings(QWidget *parent = 0);
     virtual ~FormSettings();
 
+  protected:
+    bool doSaveCheck();
+
   protected slots:
     // Saves settings into global configuration.
     void saveSettings();

src/gui/formsettings.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>680</width>
+    <width>829</width>
     <height>414</height>
    </rect>
   </property>
@@ -17,7 +17,7 @@
    <item row="0" column="1">
     <widget class="QStackedWidget" name="m_stackedSettings">
      <property name="currentIndex">
-      <number>4</number>
+      <number>2</number>
      </property>
      <widget class="QWidget" name="m_pageGeneral">
       <layout class="QFormLayout" name="formLayout_5">
@@ -69,8 +69,8 @@
            <rect>
             <x>0</x>
             <y>0</y>
-            <width>100</width>
+            <width>585</width>
-            <height>30</height>
+            <height>368</height>
            </rect>
           </property>
           <layout class="QHBoxLayout" name="horizontalLayout_4">
@@ -142,8 +142,29 @@
              </property>
             </widget>
            </item>
-           <item row="1" column="1">
+           <item row="2" column="0" colspan="2">
-            <widget class="QComboBox" name="m_cmbSkin"/>
+            <widget class="QTreeWidget" name="m_treeSkins">
+             <property name="sizePolicy">
+              <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
+               <horstretch>0</horstretch>
+               <verstretch>0</verstretch>
+              </sizepolicy>
+             </property>
+             <property name="indentation">
+              <number>0</number>
+             </property>
+             <property name="itemsExpandable">
+              <bool>false</bool>
+             </property>
+             <property name="expandsOnDoubleClick">
+              <bool>false</bool>
+             </property>
+             <column>
+              <property name="text">
+               <string notr="true">1</string>
+              </property>
+             </column>
+            </widget>
            </item>
           </layout>
          </widget>
@@ -528,9 +549,15 @@
    </item>
    <item row="0" column="0">
     <widget class="QListWidget" name="m_listSettings">
+     <property name="minimumSize">
+      <size>
+       <width>220</width>
+       <height>0</height>
+      </size>
+     </property>
      <property name="maximumSize">
       <size>
-       <width>150</width>
+       <width>220</width>
        <height>16777215</height>
       </size>
      </property>
@@ -586,22 +613,6 @@
  </customwidgets>
  <resources/>
  <connections>
-  <connection>
-   <sender>m_buttonBox</sender>
-   <signal>accepted()</signal>
-   <receiver>FormSettings</receiver>
-   <slot>accept()</slot>
-   <hints>
-    <hint type="sourcelabel">
-     <x>257</x>
-     <y>404</y>
-    </hint>
-    <hint type="destinationlabel">
-     <x>157</x>
-     <y>274</y>
-    </hint>
-   </hints>
-  </connection>
   <connection>
    <sender>m_buttonBox</sender>
    <signal>rejected()</signal>

src/gui/skinfactory.cpp

@@ -34,10 +34,15 @@ void SkinFactory::loadCurrentSkin() {
   bool loaded = false;
   Skin skin_data = getSkinInfo(skin_name_from_settings, &loaded);
 
-  if (loaded) {
+  if (skin_name_from_settings == APP_THEME_SYSTEM) {
+    qApp->setStyleSheet(QString());
+    qApp->setStyle(NULL);
+    qDebug("System default skin loaded.");
+  }
+  else if (loaded) {
     loadSkinFromData(skin_data.m_rawData, skin_name_from_settings);
 
-    foreach (QString style, skin_data.m_stylesName.split("\n")) {
+    foreach (QString style, skin_data.m_stylesNames) {
       if (qApp->setStyle(style) != 0) {
         qDebug("Style '%s' loaded.", qPrintable(style));
         break;
@@ -103,14 +108,20 @@ Skin SkinFactory::getSkinInfo(const QString &skin_name, bool *ok) {
     return skin;
   }
 
+  // Obtain visible skin name.
+  query.setQuery("string(skin/name)");
+  query.evaluateTo(&skin.m_visibleName);
+  skin.m_visibleName = skin.m_visibleName.remove("\n");
+
   // Obtain skin raw data.
   query.setQuery("string(skin/data)");
   query.evaluateTo(&skin.m_rawData);
 
   // Obtain style name.
   query.setQuery("string(/skin/style)");
-  query.evaluateTo(&skin.m_stylesName);
+  QString styles;
-  skin.m_stylesName = skin.m_stylesName.remove("\n");
+  query.evaluateTo(&styles);
+  skin.m_stylesNames = styles.remove("\n").split(",");
 
   // Obtain author.
   query.setQuery("string(/skin/author/name)");
@@ -137,7 +148,7 @@ Skin SkinFactory::getSkinInfo(const QString &skin_name, bool *ok) {
   if (ok) {
     *ok = !skin.m_author.isEmpty() && !skin.m_version.isEmpty() &&
           !skin.m_baseName.isEmpty() && !skin.m_email.isEmpty() &&
-          !skin.m_rawData.isEmpty() && !skin.m_stylesName.isEmpty();
+          !skin.m_rawData.isEmpty() && !skin.m_stylesNames.isEmpty();
   }
 
   return skin;
@@ -145,5 +156,36 @@ Skin SkinFactory::getSkinInfo(const QString &skin_name, bool *ok) {
 
 QList<Skin> SkinFactory::getInstalledSkins() {
   QList<Skin> skins;
+
+  Skin default_skin;
+  default_skin.m_author = "-";
+  default_skin.m_baseName = APP_THEME_SYSTEM;
+  default_skin.m_email = "-";
+  default_skin.m_version = "-";
+  default_skin.m_visibleName = tr("default system skin");
+  skins.append(default_skin);
+
+  bool skin_load_ok;
+  QStringList skin_directories = QDir(APP_SKIN_PATH).entryList(QDir::Dirs |
+                                                               QDir::NoDotAndDotDot |
+                                                               QDir::NoSymLinks |
+                                                               QDir::Readable);
+
+  foreach (QString base_directory, skin_directories) {
+    // Check skins installed in this base directory.
+    QStringList skin_files = QDir(APP_SKIN_PATH + QDir::separator() + base_directory).entryList(QStringList() << "*.xml",
+                                                                                                QDir::Files | QDir::Readable | QDir::NoDotAndDotDot | QDir::NoSymLinks);
+
+    foreach (QString skin_file, skin_files) {
+      // Check if skin file is valid and add it if it is valid.
+      Skin skin_info = getSkinInfo(base_directory + QDir::separator() + skin_file,
+                                   &skin_load_ok);
+
+      if (skin_load_ok) {
+        skins.append(skin_info);
+      }
+    }
+  }
+
   return skins;
 }

src/gui/skinfactory.h

@@ -3,23 +3,31 @@
 
 #include <QObject>
 #include <QPointer>
+#include <QStringList>
+#include <QMetaType>
 
 
 struct Skin {
     QString m_baseName;
-    QString m_stylesName;
+    QString m_visibleName;
+    QStringList m_stylesNames;
     QString m_author;
     QString m_email;
     QString m_version;
     QString m_rawData;
 };
 
+Q_DECLARE_METATYPE(Skin)
+
 class SkinFactory : public QObject {
     Q_OBJECT
 
   private:
     explicit SkinFactory(QObject *parent = 0);
 
+    // Loads the skin from give skin_data.
+    // NOTE: Extra relative path escaping is done for loading of
+    // external resources.
     bool loadSkinFromData(QString skin_data, const QString &skin_path);
 
   public:

src/main.cpp

@@ -72,6 +72,7 @@ int main(int argc, char *argv[]) {
   IconThemeFactory::getInstance()->setupSearchPaths();
   IconThemeFactory::getInstance()->loadCurrentIconTheme(false);
   SkinFactory::getInstance()->loadCurrentSkin();
+  SkinFactory::getInstance()->getInstalledSkins();
 
   // Load localization and setup locale before any widget is constructed.
   LoadLocalization();