E-book viewer: Allow quick saving and loading of viewer settings as 'themes'. Fixes #1024611 ([Enhancements] Ebook viewer : Display profiles)

src/calibre/gui2/viewer/config.py

@@ -10,10 +10,11 @@ __docformat__ = 'restructuredtext en'
 import zipfile
 from functools import partial
 
-from PyQt4.Qt import QFont, QVariant, QDialog, Qt, QColor, QColorDialog
+from PyQt4.Qt import (QFont, QVariant, QDialog, Qt, QColor, QColorDialog,
+        QMenu, QInputDialog)
 
 from calibre.constants import iswindows, isxp
-from calibre.utils.config import Config, StringConfig
+from calibre.utils.config import Config, StringConfig, JSONConfig
 from calibre.gui2.shortcuts import ShortcutConfig
 from calibre.gui2.viewer.config_ui import Ui_Dialog
 from calibre.utils.localization import get_language
@@ -112,8 +113,55 @@ class ConfigDialog(QDialog, Ui_Dialog):
             self.hyphenate_default_lang.setVisible(False)
             self.hyphenate_label.setVisible(False)
 
+        self.themes = JSONConfig('viewer_themes')
+        self.save_theme_button.clicked.connect(self.save_theme)
+        self.load_theme_button.m = m = QMenu()
+        self.load_theme_button.setMenu(m)
+        m.triggered.connect(self.load_theme)
+        self.delete_theme_button.m = m = QMenu()
+        self.delete_theme_button.setMenu(m)
+        m.triggered.connect(self.delete_theme)
+
         opts = config().parse()
         self.load_options(opts)
+        self.init_load_themes()
+
+    def save_theme(self):
+        themename, ok = QInputDialog.getText(self, _('Theme name'),
+                _('Choose a name for this theme'))
+        if not ok: return
+        themename = unicode(themename).strip()
+        if not themename: return
+        c = config('')
+        c.add_opt('theme_name_xxx', default=themename)
+        self.save_options(c)
+        self.themes['theme_'+themename] = c.src
+        self.init_load_themes()
+        self.theming_message.setText(_('Saved settings as the theme named: %s')%
+            themename)
+
+    def init_load_themes(self):
+        for x in ('load', 'delete'):
+            m = getattr(self, '%s_theme_button'%x).menu()
+            m.clear()
+            for x in self.themes.iterkeys():
+                title = x[len('theme_'):]
+                ac = m.addAction(title)
+                ac.theme_id = x
+
+    def load_theme(self, ac):
+        theme = ac.theme_id
+        raw = self.themes[theme]
+        self.load_options(config(raw).parse())
+        self.theming_message.setText(_('Loaded settings from the theme %s')%
+                theme[len('theme_'):])
+
+    def delete_theme(self, ac):
+        theme = ac.theme_id
+        del self.themes[theme]
+        self.init_load_themes()
+        self.theming_message.setText(_('Deleted the theme named: %s')%
+                theme[len('theme_'):])
 
     def restore_defaults(self):
         opts = config('').parse()
@@ -193,11 +241,10 @@ class ConfigDialog(QDialog, Ui_Dialog):
                         ' first complete that, by clicking outside the '
                         ' shortcut editing box.'), show=True)
             return
-        self.save_options()
+        self.save_options(config())
         return QDialog.accept(self, *args)
 
-    def save_options(self):
-        c = config()
+    def save_options(self, c):
         c.set('serif_family', unicode(self.serif_family.currentFont().family()))
         c.set('sans_family', unicode(self.sans_family.currentFont().family()))
         c.set('mono_family', unicode(self.mono_family.currentFont().family()))
@@ -230,4 +277,3 @@ class ConfigDialog(QDialog, Ui_Dialog):
             c.set(x+'_margin', int(getattr(self, 'opt_%s_margin'%x).value()))
 
 
-

src/calibre/gui2/viewer/config.ui

@@ -18,6 +18,16 @@
     <normaloff>:/images/config.png</normaloff>:/images/config.png</iconset>
   </property>
   <layout class="QGridLayout" name="gridLayout_4">
+   <item row="1" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok|QDialogButtonBox::RestoreDefaults</set>
+     </property>
+    </widget>
+   </item>
    <item row="0" column="0">
     <widget class="QTabWidget" name="tabs">
      <property name="currentIndex">
@@ -627,16 +637,131 @@ QToolBox::tab:hover {
        </item>
       </layout>
      </widget>
-    </widget>
-   </item>
-   <item row="1" column="0">
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok|QDialogButtonBox::RestoreDefaults</set>
-     </property>
+     <widget class="QWidget" name="tab_4">
+      <attribute name="title">
+       <string>&amp;Theming</string>
+      </attribute>
+      <layout class="QFormLayout" name="formLayout_7">
+       <property name="fieldGrowthPolicy">
+        <enum>QFormLayout::ExpandingFieldsGrow</enum>
+       </property>
+       <item row="0" column="0" colspan="2">
+        <widget class="QLabel" name="label_23">
+         <property name="text">
+          <string>You can save and load the viewer settings as &lt;i&gt;themes&lt;/i&gt;</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="0">
+        <spacer name="verticalSpacer_2">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item row="2" column="0">
+        <widget class="QLabel" name="label_15">
+         <property name="text">
+          <string>Save current settings as a theme:</string>
+         </property>
+         <property name="buddy">
+          <cstring>save_theme_button</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="2" column="1">
+        <widget class="QToolButton" name="save_theme_button">
+         <property name="text">
+          <string>&amp;Save</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../../../../resources/images.qrc">
+           <normaloff>:/images/save.png</normaloff>:/images/save.png</iconset>
+         </property>
+         <property name="toolButtonStyle">
+          <enum>Qt::ToolButtonTextBesideIcon</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="4" column="0">
+        <widget class="QLabel" name="label_20">
+         <property name="text">
+          <string>Load a previously saved theme:</string>
+         </property>
+         <property name="buddy">
+          <cstring>load_theme_button</cstring>
+         </property>
+        </widget>
+       </item>
+       <item row="4" column="1">
+        <widget class="QToolButton" name="load_theme_button">
+         <property name="text">
+          <string>&amp;Load</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../../../../resources/images.qrc">
+           <normaloff>:/images/document_open.png</normaloff>:/images/document_open.png</iconset>
+         </property>
+         <property name="popupMode">
+          <enum>QToolButton::InstantPopup</enum>
+         </property>
+         <property name="toolButtonStyle">
+          <enum>Qt::ToolButtonTextBesideIcon</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="5" column="0">
+        <widget class="QLabel" name="label_21">
+         <property name="text">
+          <string>Delete a saved theme:</string>
+         </property>
+        </widget>
+       </item>
+       <item row="5" column="1">
+        <widget class="QToolButton" name="delete_theme_button">
+         <property name="text">
+          <string>&amp;Delete</string>
+         </property>
+         <property name="icon">
+          <iconset resource="../../../../resources/images.qrc">
+           <normaloff>:/images/trash.png</normaloff>:/images/trash.png</iconset>
+         </property>
+         <property name="popupMode">
+          <enum>QToolButton::InstantPopup</enum>
+         </property>
+         <property name="toolButtonStyle">
+          <enum>Qt::ToolButtonTextBesideIcon</enum>
+         </property>
+        </widget>
+       </item>
+       <item row="6" column="1">
+        <spacer name="verticalSpacer_3">
+         <property name="orientation">
+          <enum>Qt::Vertical</enum>
+         </property>
+         <property name="sizeHint" stdset="0">
+          <size>
+           <width>20</width>
+           <height>40</height>
+          </size>
+         </property>
+        </spacer>
+       </item>
+       <item row="7" column="0" colspan="2">
+        <widget class="QLabel" name="theming_message">
+         <property name="text">
+          <string/>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
     </widget>
    </item>
   </layout>