Mercurial > octave

diff libgui/src/documentation.h @ 25976:a7cc5b7a3d22

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provide shortcuts for zooming into the doc browser (bug #54877) * documentation.cc (documentation::documentation): initialize new shortcuts with values for editor zoom shortcuts and connect them to the related slots of the documentation_browser; (documentation_browser::documentation_browser): initialize the new class variable for storing the current zoom level (documentation_browser::zoom_in): new slot for zooming in; (documentation_browser::zoom_out): new slot for zooming out; (documentation_browser::zoom_normal): new slot for resetting the zoom level * documentation.h: updated some comments; (class documentation_browser): new slots for zooming in, out and resetting, new constants for min and max zoom level, new class variable for storing the current zoom level; (class documentation): new shortcuts for zooming in, out and resetting * shortcut-manager.cc (do_fill_treewidget): new section for zooming in editor and doc browser, add zoom shortcuts to this section
author Torsten <mttl@mailbox.org>
date Mon, 29 Oct 2018 21:25:13 +0100
parents 506419b5f817
children 49ffd0e0242d
line wrap: on
line diff
--- a/libgui/src/documentation.h	Mon Oct 29 10:09:32 2018 -0700
+++ b/libgui/src/documentation.h	Mon Oct 29 21:25:13 2018 +0100
@@ -33,7 +33,8 @@
 
 namespace octave
 {
-  // The documentation browser
+  //! Documentation browser derived from Textbrowser
+
   class documentation_browser : public QTextBrowser
   {
     Q_OBJECT
@@ -51,13 +52,33 @@
                                const QString& keyword = QString ());
     void notice_settings (const QSettings *settings);
 
+    //! Zooming in and out while taking care of the zoom level
+    //!@{
+    void zoom_in (void);
+    void zoom_out (void);
+    void zoom_normal (void);
+    //!@}
+
   private:
 
     QHelpEngine *m_help_engine;
+
+    //! Store the current zoom level
+    int m_zoom_level;
+
+    //! Minimal and maximal zoom level avoiding calling
+    //! zoom_in and zoom_out without actually zooming but
+    //! with changing the stored zoom level
+    enum
+    {
+      min_zoom_level = -5,
+      max_zoom_level = 10
+    };
   };
 
 
-  // The documentaiton main class (splitter)
+  //! The documentaiton main class derived from QSplitter
+
   class documentation : public QSplitter
   {
     Q_OBJECT
@@ -105,9 +126,13 @@
     int m_search_anchor_position;
     QComboBox *m_filter;
     QString m_collection;
+
     QShortcut *m_show_shortcut;
     QShortcut *m_findnext_shortcut;
     QShortcut *m_findprev_shortcut;
+    QShortcut *m_zoom_in_shortcut;
+    QShortcut *m_zoom_out_shortcut;
+    QShortcut *m_zoom_normal_shortcut;
   };
 }