Add recent file handling to SDI/MDI and remove the recentfiles example.

The existing recentfiles example was basically a clone of the SDI
example with a "Recent" menu added. Assuming it is better to have
it all in one place, the functionality is merged into the existing
SDI/MDI examples.

- Implement recently opened files handling using a submenu and a
  QSettings array in the SDI/MDI examples.
- Remove recentfiles example.

Change-Id: Id5a1ab9fa1c2e6b9ec81309cfe74cf86f450392a
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/examples/widgets/mainwindows/mdi/mainwindow.h b/examples/widgets/mainwindows/mdi/mainwindow.h
index bdc2a6a09d..3ac60282fd 100644
--- a/examples/widgets/mainwindows/mdi/mainwindow.h
+++ b/examples/widgets/mainwindows/mdi/mainwindow.h
@@ -68,6 +68,8 @@ private slots:
     void open();
     void save();
     void saveAs();
+    void updateRecentFileActions();
+    void openRecentFile();
 #ifndef QT_NO_CLIPBOARD
     void cut();
     void copy();
@@ -80,10 +82,16 @@ private slots:
     void switchLayoutDirection();
 
 private:
+    enum { MaxRecentFiles = 5 };
+
     void createActions();
     void createStatusBar();
     void readSettings();
     void writeSettings();
+    bool loadFile(const QString &fileName);
+    static bool hasRecentFiles();
+    void prependToRecentFiles(const QString &fileName);
+    void setRecentFilesVisible(bool visible);
     MdiChild *activeMdiChild() const;
     QMdiSubWindow *findMdiChild(const QString &fileName) const;
 
@@ -93,6 +101,9 @@ private:
     QAction *newAct;
     QAction *saveAct;
     QAction *saveAsAct;
+    QAction *recentFileActs[MaxRecentFiles];
+    QAction *recentFileSeparator;
+    QAction *recentFileSubMenuAct;
 #ifndef QT_NO_CLIPBOARD
     QAction *cutAct;
     QAction *copyAct;