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384 lines
12 KiB
ObjectPascal
384 lines
12 KiB
ObjectPascal
{ $Id$}
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{
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*****************************************************************************
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* Gtk2WSMenus.pp *
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* -------------- *
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* *
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* *
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*****************************************************************************
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*****************************************************************************
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* *
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* This file is part of the Lazarus Component Library (LCL) *
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* *
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* See the file COPYING.modifiedLGPL, included in this distribution, *
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* for details about the copyright. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
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* *
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*****************************************************************************
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}
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unit Gtk2WSMenus;
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{$mode objfpc}{$H+}
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interface
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uses
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glib2, gdk2pixbuf, gdk2, gtk2, Pango,
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GtkInt, GtkProc, GtkGlobals, GtkDef, GtkExtra,
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Classes, InterfaceBase, Types, LCLProc, LCLType, WSMenus, WSLCLClasses,
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Graphics, Menus, Forms, LCLIntf;
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type
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{ TGtk2WSMenuItem }
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TGtk2WSMenuItem = class(TWSMenuItem)
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private
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protected
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public
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class procedure AttachMenu(const AMenuItem: TMenuItem); override;
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class function CreateHandle(const AMenuItem: TMenuItem): HMENU; override;
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class procedure DestroyHandle(const AMenuItem: TMenuItem); override;
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class procedure SetCaption(const AMenuItem: TMenuItem; const ACaption: string); override;
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class procedure SetShortCut(const AMenuItem: TMenuItem; const OldShortCut, NewShortCut: TShortCut); override;
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class procedure SetVisible(const AMenuItem: TMenuItem; const Visible: boolean); override;
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class function SetCheck(const AMenuItem: TMenuItem; const Checked: boolean): boolean; override;
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class function SetEnable(const AMenuItem: TMenuItem; const Enabled: boolean): boolean; override;
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class function SetRadioItem(const AMenuItem: TMenuItem; const RadioItem: boolean): boolean; override;
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class function SetRightJustify(const AMenuItem: TMenuItem; const Justified: boolean): boolean; override;
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class procedure UpdateMenuIcon(const AMenuItem: TMenuItem; const HasIcon: Boolean; const AIcon: TBitmap); override;
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end;
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{ TGtk2WSMenu }
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TGtk2WSMenu = class(TWSMenu)
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private
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protected
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public
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class procedure SetBiDiMode(const AMenu: TMenu; UseRightToLeftAlign, UseRightToLeftReading : Boolean); override;
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end;
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{ TGtk2WSMainMenu }
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TGtk2WSMainMenu = class(TWSMainMenu)
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private
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protected
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public
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end;
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{ TGtk2WSPopupMenu }
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TGtk2WSPopupMenu = class(TWSPopupMenu)
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private
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protected
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public
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end;
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implementation
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{$I gtkdefines.inc}
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{ TGtk2WSMenuItem }
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class procedure TGtk2WSMenuItem.AttachMenu(const AMenuItem: TMenuItem);
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var
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//AccelKey: Integer;
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//AccelGroup: PGTKAccelGroup;
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MenuItem, ParentMenuWidget, ContainerMenu: PGtkWidget;
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procedure SetContainerMenuToggleSize;
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var MenuClass: PGtkWidgetClass;
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begin
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if GtkWidgetIsA(ContainerMenu,GTK_TYPE_MENU) then begin
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MenuClass:=GTK_WIDGET_CLASS(gtk_object_get_class(ContainerMenu));
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if OldMenuSizeRequestProc=nil then begin
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OldMenuSizeRequestProc:=MenuClass^.size_request;
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end;
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MenuClass^.size_request:=@MenuSizeRequest;
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end;
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end;
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begin
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//DebugLn('TGtkWidgetSet.AttachMenu START ',AMenuItem.Name,':',AMenuItem.ClassName,' Parent=',AMenuItem.Parent.Name,':',AMenuItem.Parent.ClassName);
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with AMenuItem do
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begin
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MenuItem := PGtkWidget(Handle);
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if MenuItem=nil then
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RaiseGDBException('TGtkWidgetSet.AttachMenu Handle=0');
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ParentMenuWidget := PGtkWidget(Parent.Handle);
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if ParentMenuWidget=nil then
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RaiseGDBException('TGtkWidgetSet.AttachMenu ParentMenuWidget=nil');
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if GtkWidgetIsA(ParentMenuWidget,GTK_TYPE_MENU_BAR) then begin
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// mainmenu (= a menu bar)
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ContainerMenu:=ParentMenuWidget;
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gtk_menu_bar_insert(ParentMenuWidget,MenuItem, AMenuItem.MenuVisibleIndex);
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end
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else begin
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// menu item
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// find the menu container
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ContainerMenu := PGtkWidget(gtk_object_get_data(
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PGtkObject(ParentMenuWidget),
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'ContainerMenu'));
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if ContainerMenu = nil then begin
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if (GetParentMenu is TPopupMenu) and (Parent.Parent=nil) then begin
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ContainerMenu:=PGtkWidget(GetParentMenu.Handle);
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gtk_object_set_data(PGtkObject(ContainerMenu), 'ContainerMenu',
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ContainerMenu);
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end else begin
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ContainerMenu := gtk_menu_new;
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gtk_object_set_data(PGtkObject(ParentMenuWidget), 'ContainerMenu',
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ContainerMenu);
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gtk_menu_item_set_submenu(PGTKMenuItem(ParentMenuWidget),ContainerMenu);
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end;
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end;
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gtk_menu_insert(ContainerMenu, MenuItem, AMenuItem.MenuVisibleIndex);
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end;
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SetContainerMenuToggleSize;
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if GtkWidgetIsA(MenuItem, GTK_TYPE_RADIO_MENU_ITEM) then
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TGtkWidgetSet(WidgetSet).RegroupMenuItem(HMENU(PtrUInt(MenuItem)),GroupIndex);
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end;
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//DebugLn('TGtkWidgetSet.AttachMenu END ',AMenuItem.Name,':',AMenuItem.ClassName);
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end;
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class function TGtk2WSMenuItem.CreateHandle(const AMenuItem: TMenuItem): HMENU;
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var
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Widget: PGtkWidget;
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WidgetInfo: PWidgetInfo;
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begin
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// create the menuitem widget (normal, check or radio)
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if AMenuItem.Caption='-' then // create separator
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Widget := gtk_menu_item_new
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else
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if AMenuItem.RadioItem and not AMenuItem.HasIcon then
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Widget := gtk_radio_menu_item_new(nil)
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else
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if AMenuItem.IsCheckItem or AMenuItem.HasIcon then
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Widget := gtk_check_menu_item_new
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else
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Widget := gtk_menu_item_new;
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WidgetInfo := CreateWidgetInfo(Widget);
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WidgetInfo^.LCLObject := AMenuItem;
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if GtkWidgetIsA(Widget, GTK_TYPE_CHECK_MENU_ITEM) then
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begin
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// set 'ShowAlwaysCheckable'
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gtk_check_menu_item_set_show_toggle(PGtkCheckMenuItem(Widget),
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AMenuItem.ShowAlwaysCheckable);
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// set 'Checked'
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gtk_check_menu_item_set_active(PGtkCheckMenuItem(Widget),
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AMenuItem.Checked);
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if (OldCheckMenuItemToggleSize=0) then
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begin
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gtk_menu_item_toggle_size_request(GTK_MENU_ITEM(Widget), @OldCheckMenuItemToggleSize);
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OldCheckMenuItemToggleSize := GTK_MENU_ITEM(Widget)^.toggle_size;
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end;
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g_signal_connect_after(PGTKObject(Widget), 'toggled',
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TGTKSignalFunc(@GTKCheckMenuToggeledCB), Pointer(AMenuItem));
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end;
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// set attributes (enabled and rightjustify)
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gtk_widget_set_sensitive(Widget,
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AMenuItem.Enabled and (AMenuItem.Caption<>'-'));
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if AMenuItem.RightJustify then
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gtk_menu_item_right_justify(PGtkMenuItem(Widget));
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// create the hbox containing the label and the icon
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UpdateInnerMenuItem(AMenuItem, Widget);
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// connect activate signal (i.e. clicked)
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g_signal_connect(PGTKObject(Widget), 'activate',
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TGTKSignalFunc(@gtkactivateCB), AMenuItem);
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gtk_widget_show(Widget);
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{$IFDEF DebugLCLComponents}
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DebugGtkWidgets.MarkCreated(Widget, dbgsName(AMenuItem));
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{$ENDIF}
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Result := HMENU(PtrUInt(Widget));
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end;
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class procedure TGtk2WSMenuItem.DestroyHandle(const AMenuItem: TMenuItem);
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begin
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{ TODO: cleanup }
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TGtkWidgetSet(WidgetSet).DestroyLCLComponent(AMenuItem);
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end;
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class procedure TGtk2WSMenuItem.SetCaption(const AMenuItem: TMenuItem;
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const ACaption: string);
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var
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MenuItemWidget: PGtkWidget;
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begin
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if not WSCheckMenuItem(AMenuItem, 'SetCaption') then
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Exit;
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MenuItemWidget:=PGtkWidget(AMenuItem.Handle);
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UpdateInnerMenuItem(AMenuItem,MenuItemWidget);
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end;
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class procedure TGtk2WSMenuItem.SetShortCut(const AMenuItem: TMenuItem;
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const OldShortCut, NewShortCut: TShortCut);
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//var
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//MenuWidget: PGtkMenuItem;
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//accel_path: String;
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//CurKey: Word;
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//CurShift: TShiftState;
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begin
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if not WSCheckMenuItem(AMenuItem, 'SetShortCut') then Exit;
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//DebugLn(['TGtkWSMenuItem.SetShortCut ',dbgsName(AMenuItem),' ',ShortCutToText(NewShortCut)]);
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// Temporary: At least it writes the names of the shortcuts
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UpdateInnerMenuItem(AMenuItem, PGTKWidget(AMenuItem.Handle), NewShortCut);
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{ // Gets the inner widgets. They should already be created by now
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MenuWidget := PGtkMenuItem(AMenuItem.Handle);
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if (MenuWidget=nil) then Exit;
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// Converts the shortcut to a gtk friendly format and sets it
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ShortCutToKey(NewShortCut, CurKey, CurShift);
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accel_path := 'LCLApp/Menu/' + GetAcceleratorString(CurKey, CurShift);
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gtk_accel_map_add_entry(accel_path, CurKey, ShiftToGdkModifierType);
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gtk_menu_item_set_accel_path(); }
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end;
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class procedure TGtk2WSMenuItem.SetVisible(const AMenuItem: TMenuItem;
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const Visible: boolean);
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var
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MenuItemWidget: PGtkWidget;
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begin
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if not WSCheckMenuItem(AMenuItem, 'SetVisible') then
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Exit;
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MenuItemWidget := PGtkWidget(AMenuItem.Handle);
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if gtk_widget_visible(MenuItemWidget) = Visible then
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Exit;
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if Visible then
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gtk_widget_show(MenuItemWidget)
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else
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gtk_widget_hide(MenuItemWidget);
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end;
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class function TGtk2WSMenuItem.SetCheck(const AMenuItem: TMenuItem;
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const Checked: boolean): boolean;
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var
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IsRadio: Boolean;
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Group: PGSList;
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Item: Pointer;
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begin
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if not WSCheckMenuItem(AMenuItem, 'SetCheck') then
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Exit;
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Item := Pointer(AMenuItem.Handle);
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IsRadio := gtk_is_radio_menu_item(Item);
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if IsRadio or gtk_is_check_menu_item(Item)
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then begin
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if IsRadio
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then begin
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Group := gtk_radio_menu_item_group(Item);
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LockRadioGroupOnChange(Group, +1);
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end
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else LockOnChange(Item, +1);
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gtk_check_menu_item_set_active(Item, Checked);
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if IsRadio
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then LockRadioGroupOnChange(Group, -1)
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else LockOnChange(Item, -1);
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Result := True;
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end
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else begin
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AMenuItem.RecreateHandle;
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Result := True;
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end;
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end;
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class function TGtk2WSMenuItem.SetEnable(const AMenuItem: TMenuItem;
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const Enabled: boolean): boolean;
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begin
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Result := False;
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if not WSCheckMenuItem(AMenuItem, 'SetEnable') then
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Exit;
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gtk_widget_set_sensitive(PGtkWidget(AMenuItem.Handle),
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Enabled and (AMenuItem.Caption<>'-'));
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Result := True;
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end;
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class function TGtk2WSMenuItem.SetRadioItem(const AMenuItem: TMenuItem;
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const RadioItem: boolean): boolean;
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begin
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AMenuItem.RecreateHandle;
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Result := True;
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end;
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class function TGtk2WSMenuItem.SetRightJustify(const AMenuItem: TMenuItem;
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const Justified: boolean): boolean;
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var
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MenuItemWidget: PGtkMenuItem;
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begin
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Result := False;
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if not WSCheckMenuItem(AMenuItem, 'SetRightJustify') then
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Exit;
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MenuItemWidget := PGtkMenuItem(AMenuItem.Handle);
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gtk_menu_item_set_right_justified(MenuItemWidget, Justified);
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gtk_widget_queue_resize(GTK_WIDGET(MenuItemWidget));
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Result := True;
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end;
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class procedure TGtk2WSMenuItem.UpdateMenuIcon(const AMenuItem: TMenuItem;
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const HasIcon: Boolean; const AIcon: TBitmap);
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begin
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if not WSCheckMenuItem(AMenuItem, 'UpdateMenuIcon') then
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Exit;
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// TODO
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end;
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{ TGtk2WSMenu }
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class procedure TGtk2WSMenu.SetBiDiMode(const AMenu : TMenu;
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UseRightToLeftAlign, UseRightToLeftReading : Boolean
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);
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{$ifdef GTK_2_8}
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const
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MenuDirection : array[Boolean] of Longint = (GTK_PACK_DIRECTION_LTR, GTK_PACK_DIRECTION_RTL);
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{$endif}
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begin
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{$ifdef GTK_2_8}
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gtk_menu_bar_set_pack_direction(PGtkMenuBar(AMenu.Handle), MenuDirection[UseRightToLeftAlign]);
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{$endif}
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if UseRightToLeftReading then
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begin
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end
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else begin
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end;
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end;
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initialization
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////////////////////////////////////////////////////
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// I M P O R T A N T
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////////////////////////////////////////////////////
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// To improve speed, register only classes
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// which actually implement something
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////////////////////////////////////////////////////
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RegisterWSComponent(TMenuItem, TGtk2WSMenuItem);
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// RegisterWSComponent(TMenu, TGtk2WSMenu);
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// RegisterWSComponent(TMainMenu, TGtk2WSMainMenu);
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// RegisterWSComponent(TPopupMenu, TGtk2WSPopupMenu);
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////////////////////////////////////////////////////
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end.
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