Add "menu" example

.gitignore

@@ -28,6 +28,7 @@ test/dialog
 test/string-operations
 test/hello
 test/watch
+test/menu
 test/input-dialog
 test/mandelbrot
 test/keyboard

ChangeLog

@@ -1,3 +1,8 @@
+2015-12-08  Markus Gans  <guru.mail@muenster.de>
+	* Add "menu" example to demonstrate the behavior from FMenuBar, 
+	  FMenu, FMenuItem, FCheckMenuItem and FRadioMenuItem widgets.
+	* Show status bar messages, if no keys are available.
+
 2015-11-29  Markus Gans  <guru.mail@muenster.de>
 	* Better handling of empty strings in FLineEdit and FButton
 	* Add a sub-menu to the "ui.cpp" example

src/fapp.cpp

@@ -976,12 +976,15 @@ void FApplication::processMouseEvent()
       menu->hide();
       menu->hideSubMenus();
       menu->hideSuperMenus();
+      if ( statusBar() )
+        statusBar()->clearMessage();
 
       // No widget was been clicked
       if ( ! clicked_widget )
       {
         // activate previous window
         FWindow::activatePrevWindow();
+        FWindow::raiseWindow (FWindow::getActiveWindow());
         FWindow::getActiveWindow()->getFocusWidget()->setFocus();
         FWindow::getActiveWindow()->redraw();
         if ( statusBar() )

src/fdialog.cpp

@@ -233,6 +233,7 @@ void FDialog::drawTitleBar()
     print (' ');
 
   // the title bar text
+  if ( tb_text )
     print (tb_text);
 
   // fill the rest of the bar

src/fmenu.cpp

@@ -123,6 +123,12 @@ void FMenu::init(FWidget* parent)
       if ( mbar )
         mbar->menu_dimension();
     }
+    else if ( isMenu(parent) )
+    {
+      FMenu* smenu = dynamic_cast<FMenu*>(parent);
+      if ( smenu )
+        smenu->menu_dimension();
+    }
     setSuperMenu(parent);
   }
   menu_dimension();
@@ -176,9 +182,9 @@ void FMenu::menu_dimension()
     (*iter)->setGeometry (item_X, item_Y, int(maxItemWidth), 1);
  
     if ( (*iter)->hasMenu() )
-    {
+    {//(*iter)->setText( FString().setNumber(itemlist.size()) );
-      int menu_X = (*iter)->getX() + int(maxItemWidth) + 1;
+      int menu_X = (*iter)->getGlobalX() + int(maxItemWidth);
-      int menu_Y = (*iter)->getY();
+      int menu_Y = (*iter)->getGlobalY() - 2;
       // set sub-menu position
       (*iter)->getMenu()->setPos (menu_X, menu_Y, false);
     }
@@ -227,6 +233,7 @@ void FMenu::openSubMenu (FMenu* sub_menu)
 
   // open sub menu
   sub_menu->selectFirstItem();
+  if ( sub_menu->hasSelectedItem() )
     sub_menu->getSelectedItem()->setFocus();
   sub_menu->setVisible();
   sub_menu->show();
@@ -865,6 +872,7 @@ void FMenu::onKeyPress (FKeyEvent* ev)
       {
         hideSuperMenus();
         activatePrevWindow();
+        raiseWindow (getActiveWindow());
         getActiveWindow()->getFocusWidget()->setFocus();
         getActiveWindow()->redraw();
       }
@@ -1031,7 +1039,7 @@ void FMenu::onMouseUp (FMouseEvent* ev)
                 openSubMenu (sub_menu);
               else if ( open_sub_menu )
               {
-                if ( open_sub_menu->hasSelectedItem() )
+                /*if ( open_sub_menu->hasSelectedItem() )
                 {
                   FMenuItem* sel_item = getSelectedItem();
                   hideSubMenus();
@@ -1042,9 +1050,10 @@ void FMenu::onMouseUp (FMouseEvent* ev)
                   updateTerminal();
                   flush_out();
                 }
-                else
+                else*/
                 {
                   open_sub_menu->selectFirstItem();
+                  if ( open_sub_menu->hasSelectedItem() )
                     open_sub_menu->getSelectedItem()->setFocus();
                   open_sub_menu->redraw();
                   if ( statusBar() )
@@ -1154,6 +1163,7 @@ void FMenu::onMouseMove (FMouseEvent* ev)
             focused_widget->redraw();
           if ( statusBar() )
             statusBar()->drawMessage();
+          // sub menu handling
           if ( (*iter)->hasMenu() )
           {
             FMenu* sub_menu = (*iter)->getMenu();
@@ -1239,6 +1249,12 @@ void FMenu::onMouseMove (FMouseEvent* ev)
  
     if ( show_sub_menu )
     {
+      // close open sub menu
+      if ( open_sub_menu )
+      {
+        open_sub_menu->hideSubMenus();
+        open_sub_menu->hide();
+      }
       // open sub menu
       show_sub_menu->setVisible();
       show_sub_menu->show();

src/fmenubar.cpp

@@ -566,12 +566,12 @@ void FMenuBar::onMouseDown (FMouseEvent* ev)
           FApplication::queueEvent(focused_widget, &out);
           (*iter)->setSelected();
           (*iter)->setFocus();
+          if ( focused_widget )
+            focused_widget->redraw();
           (*iter)->openMenu();
           setSelectedItem(*iter);
           focus_changed = true;
-          if ( focused_widget )
+
-            focused_widget->redraw();
-        }
           if ( (*iter)->hasMenu() )
           {
             FMenu* menu = (*iter)->getMenu();
@@ -579,11 +579,11 @@ void FMenuBar::onMouseDown (FMouseEvent* ev)
             {
               menu->unselectItem();
               menu->redraw();
-             focus_changed = true;
               drop_down = true;
             }
           }
         }
+      }
       else
       {
         if ( mouse_y == 1
@@ -728,11 +728,11 @@ void FMenuBar::onMouseMove (FMouseEvent* ev)
           FApplication::queueEvent(focused_widget, &out);
           (*iter)->setSelected();
           (*iter)->setFocus();
+          if ( focused_widget )
+            focused_widget->redraw();
           (*iter)->openMenu();
           setSelectedItem(*iter);
           focus_changed = true;
-          if ( focused_widget )
-            focused_widget->redraw();
 
           if ( (*iter)->hasMenu() )
           {

src/fstatusbar.cpp

@@ -221,7 +221,10 @@ void FStatusBar::drawKeys()
   ypos = lastLine;
 
   if ( keylist.empty() )
+  {
+    x_msg = 1;
     return;
+  }
 
   setUpdateVTerm(false);
   gotoxy (1, lastLine);
@@ -565,7 +568,7 @@ bool FStatusBar::hasActivatedKey()
 void FStatusBar::drawMessage()
 {
   int  termWidth, lastLine, space_offset;
-  bool isLastActiveFocus;
+  bool isLastActiveFocus, hasKeys;
 
   if ( ! isVisible() )
     return;
@@ -576,8 +579,9 @@ void FStatusBar::drawMessage()
   termWidth = getColumnNumber();
   lastLine = getLineNumber();
   space_offset = 1;
+  hasKeys = bool(! keylist.empty());
 
-  if ( ! keylist.empty() )
+  if ( hasKeys )
   {
     std::vector<FStatusKey*>::const_iterator iter = keylist.end();
     isLastActiveFocus = bool(  (*(iter-1))->isActivated()
@@ -598,14 +602,17 @@ void FStatusBar::drawMessage()
   {
     if ( text )
     {
-      x += 2;
       if ( ! isLastActiveFocus )
       {
         x++;
         print (vstatusbar, ' ');
       }
+      if ( hasKeys )
+      {
+        x += 2;
         print (vstatusbar, fc::BoxDrawingsVertical);  // │
         print (vstatusbar, ' ');
+      }
 
       int msg_length = int(getMessage().getLength());
       x += msg_length;

src/fwidget.cpp

@@ -685,7 +685,8 @@ bool FWidget::focusNextChild(void)
 {
   if ( hasParent() )
   {
-    if ( getParent()->hasChildren() )
+    FWidget* parent = static_cast<FWidget*>(getParent());
+    if ( parent->hasChildren() && parent->numOfFocusableChildren() > 1 )
     {
       FObject::object_list children;
       FObject::object_list::iterator iter, end;
@@ -746,7 +747,8 @@ bool FWidget::focusPrevChild(void)
 {
   if ( hasParent() )
   {
-    if ( getParent()->hasChildren() )
+    FWidget* parent = static_cast<FWidget*>(getParent());
+    if ( parent->hasChildren() && parent->numOfFocusableChildren() > 1 )
     {
       FObject::object_list children;
       FObject::object_list::iterator iter, begin;

test/Makefile.am

@@ -15,6 +15,7 @@ noinst_PROGRAMS = \
 	watch \
 	keyboard \
 	timer \
+	menu \
 	ui
 
 hello_SOURCES = hello.cpp
@@ -26,5 +27,5 @@ calculator_SOURCES = calculator.cpp
 watch_SOURCES = watch.cpp
 keyboard_SOURCES = keyboard.cpp
 timer_SOURCES = timer.cpp
+menu_SOURCES = menu.cpp
 ui_SOURCES = ui.cpp
-

test/Makefile.in

@@ -85,7 +85,7 @@ host_triplet = @host@
 noinst_PROGRAMS = hello$(EXEEXT) dialog$(EXEEXT) input-dialog$(EXEEXT) \
 	string-operations$(EXEEXT) mandelbrot$(EXEEXT) \
 	calculator$(EXEEXT) watch$(EXEEXT) keyboard$(EXEEXT) \
-	timer$(EXEEXT) ui$(EXEEXT)
+	timer$(EXEEXT) menu$(EXEEXT) ui$(EXEEXT)
 subdir = test
 DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/Makefile.am \
 	$(top_srcdir)/depcomp
@@ -123,6 +123,9 @@ keyboard_LDADD = $(LDADD)
 am_mandelbrot_OBJECTS = mandelbrot.$(OBJEXT)
 mandelbrot_OBJECTS = $(am_mandelbrot_OBJECTS)
 mandelbrot_LDADD = $(LDADD)
+am_menu_OBJECTS = menu.$(OBJEXT)
+menu_OBJECTS = $(am_menu_OBJECTS)
+menu_LDADD = $(LDADD)
 am_string_operations_OBJECTS = string-operations.$(OBJEXT)
 string_operations_OBJECTS = $(am_string_operations_OBJECTS)
 string_operations_LDADD = $(LDADD)
@@ -171,12 +174,14 @@ am__v_CXXLD_0 = @echo "  CXXLD   " $@;
 am__v_CXXLD_1 = 
 SOURCES = $(calculator_SOURCES) $(dialog_SOURCES) $(hello_SOURCES) \
 	$(input_dialog_SOURCES) $(keyboard_SOURCES) \
-	$(mandelbrot_SOURCES) $(string_operations_SOURCES) \
+	$(mandelbrot_SOURCES) $(menu_SOURCES) \
-	$(timer_SOURCES) $(ui_SOURCES) $(watch_SOURCES)
+	$(string_operations_SOURCES) $(timer_SOURCES) $(ui_SOURCES) \
+	$(watch_SOURCES)
 DIST_SOURCES = $(calculator_SOURCES) $(dialog_SOURCES) \
 	$(hello_SOURCES) $(input_dialog_SOURCES) $(keyboard_SOURCES) \
-	$(mandelbrot_SOURCES) $(string_operations_SOURCES) \
+	$(mandelbrot_SOURCES) $(menu_SOURCES) \
-	$(timer_SOURCES) $(ui_SOURCES) $(watch_SOURCES)
+	$(string_operations_SOURCES) $(timer_SOURCES) $(ui_SOURCES) \
+	$(watch_SOURCES)
 am__can_run_installinfo = \
   case $$AM_UPDATE_INFO_DIR in \
     n|no|NO) false;; \
@@ -334,6 +339,7 @@ calculator_SOURCES = calculator.cpp
 watch_SOURCES = watch.cpp
 keyboard_SOURCES = keyboard.cpp
 timer_SOURCES = timer.cpp
+menu_SOURCES = menu.cpp
 ui_SOURCES = ui.cpp
 all: all-am
 
@@ -403,6 +409,10 @@ mandelbrot$(EXEEXT): $(mandelbrot_OBJECTS) $(mandelbrot_DEPENDENCIES) $(EXTRA_ma
 	@rm -f mandelbrot$(EXEEXT)
 	$(AM_V_CXXLD)$(CXXLINK) $(mandelbrot_OBJECTS) $(mandelbrot_LDADD) $(LIBS)
 
+menu$(EXEEXT): $(menu_OBJECTS) $(menu_DEPENDENCIES) $(EXTRA_menu_DEPENDENCIES) 
+	@rm -f menu$(EXEEXT)
+	$(AM_V_CXXLD)$(CXXLINK) $(menu_OBJECTS) $(menu_LDADD) $(LIBS)
+
 string-operations$(EXEEXT): $(string_operations_OBJECTS) $(string_operations_DEPENDENCIES) $(EXTRA_string_operations_DEPENDENCIES) 
 	@rm -f string-operations$(EXEEXT)
 	$(AM_V_CXXLD)$(CXXLINK) $(string_operations_OBJECTS) $(string_operations_LDADD) $(LIBS)
@@ -431,6 +441,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/input-dialog.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/keyboard.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mandelbrot.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/menu.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/string-operations.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/timer.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ui.Po@am__quote@

test/menu.cpp

@@ -0,0 +1,283 @@
+// File: menu.cpp
+
+#include "final.h"
+
+// You have chosen "Cola".
+
+//----------------------------------------------------------------------
+// class Menu
+//----------------------------------------------------------------------
+
+#pragma pack(push)
+#pragma pack(1)
+
+class Menu : public FDialog
+{
+ private:
+   Menu (const Menu&);    // Disabled copy constructor
+   Menu& operator = (const Menu&); // and operator '='
+
+ public:
+   explicit Menu (FWidget* = 0);  // constructor
+  ~Menu();  // destructor
+   void onClose (FCloseEvent*);
+   void cb_message (FWidget*, void*);
+   void cb_exitApp (FWidget*, void*);
+ protected:
+   void adjustSize();
+};
+#pragma pack(pop)
+
+//----------------------------------------------------------------------
+Menu::Menu (FWidget* parent)
+  : FDialog(parent)
+{
+  // menu bar
+  FMenuBar* Menubar  = new FMenuBar (this);
+
+  // menu bar items
+  FMenu* File        = new FMenu ("&File", Menubar);
+  File->setStatusbarMessage ("File management commands");
+  FMenu* Edit        = new FMenu ("&Edit", Menubar);
+  Edit->setStatusbarMessage ("Cut-and-paste editing commands");
+  FMenu* Choice      = new FMenu ("&Choice", Menubar);
+  Choice->setStatusbarMessage ("Choice menu");
+  FMenuItem* Window = new FMenuItem ("&Window", Menubar);
+  Window->setDisable();
+  FMenuItem* Help    = new FMenuItem ("&Help", Menubar);
+  Help->setStatusbarMessage ("Show version and copyright information");
+
+  // "File" menu items
+  FMenuItem* New     = new FMenuItem ("&New", File);
+  New->addAccelerator (fc::Fckey_n); // Ctrl + N
+  New->setStatusbarMessage ("Create a new file");
+  FMenuItem* Open    = new FMenuItem ("&Open...", File);
+  Open->addAccelerator (fc::Fckey_o); // Ctrl + O
+  Open->setStatusbarMessage ("Locate and open a text file");
+  FMenuItem* Save    = new FMenuItem ("&Save", File);
+  Save->addAccelerator (fc::Fckey_s); // Ctrl + S
+  Save->setStatusbarMessage ("Save the file");
+  FMenuItem* SaveAs  = new FMenuItem ("&Save as...", File);
+  SaveAs->setStatusbarMessage ("Save the current file under a different name");
+  FMenuItem* Close   = new FMenuItem ("&Close", File);
+  Close->addAccelerator (fc::Fckey_w); // Ctrl + W
+  Close->setStatusbarMessage ("Close the current file");
+  FMenuItem* Line1   = new FMenuItem (File);
+  Line1->setSeparator();
+  FMenuItem* Print   = new FMenuItem ("&Print", File);
+  Print->addAccelerator (fc::Fckey_p); // Ctrl + P
+  Print->setStatusbarMessage ("Print the current file");
+  FMenuItem* Line2   = new FMenuItem (File);
+  Line2->setSeparator();
+  FMenuItem* Quit    = new FMenuItem ("&Quit", File);
+  Quit->addAccelerator (fc::Fmkey_x); // Meta/Alt + X
+  Quit->setStatusbarMessage ("Exit the program");
+
+  // "Edit" menu items
+  FMenuItem* Undo    = new FMenuItem (fc::Fckey_z, "&Undo", Edit);
+  Undo->setStatusbarMessage ("Undo the previous operation");
+  FMenuItem* Redo    = new FMenuItem (fc::Fckey_y, "&Redo", Edit);
+  Redo->setDisable();
+  FMenuItem* Line3   = new FMenuItem (Edit);
+  Line3->setSeparator();
+  FMenuItem* Cut     = new FMenuItem (fc::Fckey_x, "Cu&t", Edit);
+  Cut->setStatusbarMessage ("Remove the input text and put it in the clipboard");
+  FMenuItem* Copy    = new FMenuItem (fc::Fckey_c, "&Copy", Edit);
+  Copy->setStatusbarMessage ("Copy the input text into the clipboad");
+  FMenuItem* Paste   = new FMenuItem (fc::Fckey_v, "&Paste", Edit);
+  Paste->setStatusbarMessage ("Insert text form clipboard");
+  FMenuItem* Line4   = new FMenuItem (Edit);
+  Line4->setSeparator();
+  FMenuItem* Search  = new FMenuItem (fc::Fckey_f, "&Search", Edit);
+  Search->setStatusbarMessage ("Search for text");
+  FMenuItem* Next    = new FMenuItem (fc::Fkey_f3, "Search &next", Edit);
+  Next->setStatusbarMessage ("Repeat the last search command");
+  FMenuItem* Line5   = new FMenuItem (Edit);
+  Line5->setSeparator();
+  FMenuItem* SelectAll = new FMenuItem (fc::Fckey_a, "Select &all", Edit);
+  SelectAll->setStatusbarMessage ("Select the whole text");
+
+  // "Choice" menu items
+  FMenu* Color  = new FMenu ("&Color", Choice);
+  Color->setStatusbarMessage ("Choose a color");
+  FMenu* Style  = new FMenu ("&Style", Choice);
+  Style->setStatusbarMessage ("Choose a Style");
+  FMenu* Border = new FMenu ("&Border", Choice);
+  Border->setStatusbarMessage ("Choose Border");
+
+  // "Color" menu items
+  FRadioMenuItem* Color1 = new FRadioMenuItem ("Red", Color);
+  Color1->setStatusbarMessage ("Set text red");
+  FRadioMenuItem* Color2 = new FRadioMenuItem ("Green", Color);
+  Color2->setStatusbarMessage ("Set text green");
+  FRadioMenuItem* Color3 = new FRadioMenuItem ("Yellow", Color);
+  Color3->setStatusbarMessage ("Set text yellow");
+  FRadioMenuItem* Color4 = new FRadioMenuItem ("Brue", Color);
+  Color4->setStatusbarMessage ("Set text brue");
+  FRadioMenuItem* Color5 = new FRadioMenuItem ("Black", Color);
+  Color5->setStatusbarMessage ("Set text black");
+  Color5->setChecked();
+
+  // "Style" menu items
+  FCheckMenuItem* Bold = new FCheckMenuItem ("Bold", Style);
+  Bold->setStatusbarMessage ("Set text bold");
+  FCheckMenuItem* Italic = new FCheckMenuItem ("Italic", Style);
+  Italic->setStatusbarMessage ("Set text italic");
+
+  // "Border" menu items
+  FMenu* BColor  = new FMenu ("&Color", Border);
+  BColor->setStatusbarMessage ("Choose the border color");
+  FMenu* BStyle  = new FMenu ("&Style", Border);
+  BStyle->setStatusbarMessage ("Choose the border Style");
+
+  // "BColor" menu items
+  FRadioMenuItem* BColor1 = new FRadioMenuItem ("Red", BColor);
+  BColor1->setStatusbarMessage ("Set red border");
+  FRadioMenuItem* BColor2 = new FRadioMenuItem ("Blue", BColor);
+  BColor2->setStatusbarMessage ("Set blue border");
+
+  // "BStyle" menu items
+  FString line(13, wchar_t(fc::BoxDrawingsHorizontal));
+  FRadioMenuItem* BStyle1 = new FRadioMenuItem (line, BStyle);
+  BStyle1->setChecked();
+  BStyle1->setStatusbarMessage ("Set border 1");
+  FRadioMenuItem* BStyle2 = new FRadioMenuItem ("-------------", BStyle);
+  BStyle2->setStatusbarMessage ("Set border 2");
+  FRadioMenuItem* BStyle3 = new FRadioMenuItem ("- - - - - - -", BStyle);
+  BStyle3->setStatusbarMessage ("Set border 3");
+  FRadioMenuItem* BStyle4 = new FRadioMenuItem ("-  -  -  -  -", BStyle);
+  BStyle4->setStatusbarMessage ("Set border 4");
+
+  // Menu function callbacks
+  Open->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+  Quit->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_exitApp)
+  );
+  Undo->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+  Cut->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+  Copy->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+  Paste->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+  SelectAll->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+  Help->addCallback
+  (
+    "clicked",
+    _METHOD_CALLBACK (this, &Menu::cb_message)
+  );
+
+  // Statusbar at the bottom
+  FStatusBar* statusbar = new FStatusBar (this);
+  statusbar->setMessage("Status bar message");
+
+  // Headline labels
+  FLabel* Headline1 = new FLabel(" Key ", this);
+  Headline1->ignorePadding();
+  Headline1->setGeometry(3,2,5,1);
+  Headline1->setEmphasis();
+  
+  FLabel* Headline2 = new FLabel(" Function ", this);
+  Headline2->ignorePadding();
+  Headline2->setGeometry(15,2,10,1);
+  Headline2->setEmphasis();
+  
+  // Info label
+  FLabel* Info = new FLabel("<F10>        Activate menu bar\n"
+                            "<Meta>+<X>   Exit", this);
+  Info->setGeometry(2,1,32,2);
+}
+
+//----------------------------------------------------------------------
+Menu::~Menu()
+{ }
+
+//----------------------------------------------------------------------
+void Menu::onClose (FCloseEvent* ev)
+{
+  int ret = FMessageBox::info ( this, "Quit"
+                              , "Do you really want\n"
+                                "to quit the program ?"
+                              , FMessageBox::Yes
+                              , FMessageBox::No );
+  if ( ret == FMessageBox::Yes )
+    ev->accept();
+  else
+    ev->ignore();
+}
+
+//----------------------------------------------------------------------
+void Menu::cb_message (FWidget* widget, void*)
+{
+  FButton* button = static_cast<FButton*>(widget);
+  FString text = button->getText();
+  text = text.replace('&', "");
+  FMessageBox::info (this, "Info", "You have chosen \"" + text + "\"");
+}
+
+//----------------------------------------------------------------------
+void Menu::cb_exitApp (FWidget*, void*)
+{
+  close();
+}
+
+//----------------------------------------------------------------------
+void Menu::adjustSize()
+{
+  int pw = parentWidget()->getWidth();
+  int ph = parentWidget()->getHeight();
+  setX (1 + (pw - getWidth()) / 2, false);
+  setY (1 + (ph - getHeight()) / 4, false);
+  FDialog::adjustSize();
+}
+
+//----------------------------------------------------------------------
+//                               main part
+//----------------------------------------------------------------------
+
+int main (int argc, char* argv[])
+{
+  if ( argv[1] && (  strcmp(argv[1], "--help") == 0
+                  || strcmp(argv[1], "-h") == 0 ) )
+  {
+    std::cout << "Generic options:" << std::endl
+              << "  -h, --help                  "
+              << "Display this help and exit" << std::endl;
+    FApplication::print_cmd_Options();
+    exit(EXIT_SUCCESS);
+  }
+
+  FApplication app (argc, argv);
+
+  Menu main_dlg (&app);
+  main_dlg.setText ("Menu example");
+  main_dlg.setGeometry (int(1+(app.getWidth()-36)/2), 2, 36, 5);
+  main_dlg.setShadow();
+
+  app.setMainWidget (&main_dlg);
+  main_dlg.show();
+  return app.exec();
+}

test/ui.cpp

@@ -221,7 +221,7 @@ MyDialog::MyDialog (FWidget* parent)
   FMenuItem* Open    = new FMenuItem ("&Open...", File);
   Open->addAccelerator (fc::Fckey_o); // Ctrl + O
   Open->setStatusbarMessage ("Locate and open a text file");
-  FMenu* Recent   = new FMenu ("System files", File);
+  FMenu* Recent   = new FMenu ("&System files", File);
   Recent->setStatusbarMessage ("View text file");
 
   FMenuItem* Line1   = new FMenuItem (File);
@@ -315,17 +315,20 @@ MyDialog::MyDialog (FWidget* parent)
   File1->addCallback
   (
     "clicked",
-    _METHOD_CALLBACK (this, &MyDialog::cb_view)
+    _METHOD_CALLBACK (this, &MyDialog::cb_view),
+    dynamic_cast<FWidget::data_ptr>(File1)
   );
   File2->addCallback
   (
     "clicked",
-    _METHOD_CALLBACK (this, &MyDialog::cb_view)
+    _METHOD_CALLBACK (this, &MyDialog::cb_view),
+    dynamic_cast<FWidget::data_ptr>(File2)
   );
   File3->addCallback
   (
     "clicked",
-    _METHOD_CALLBACK (this, &MyDialog::cb_view)
+    _METHOD_CALLBACK (this, &MyDialog::cb_view),
+    dynamic_cast<FWidget::data_ptr>(File3)
   );
 
   // Buttons
@@ -723,11 +726,12 @@ void MyDialog::cb_activateButton (FWidget* widget, void* data_ptr)
 }
 
 //----------------------------------------------------------------------
-void MyDialog::cb_view (FWidget* widget, void*)
+void MyDialog::cb_view (FWidget*, void* data_ptr)
 {
   FString file;
-  FMenuItem* item = static_cast<FMenuItem*>(widget);
+  FMenuItem* item = static_cast<FMenuItem*>(data_ptr);
-  if ( item->getText() )
+  
+  if ( item && item->getText() )
     file = item->getText();
   else
     file = FFileDialog::fileOpenChooser (this);