vcl/source/window/menufloatingwindow.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_VCL_SOURCE_WINDOW_MENUFLOATINGWINDOW_HXX
  21 #define INCLUDED_VCL_SOURCE_WINDOW_MENUFLOATINGWINDOW_HXX
  22
  23 #include "menuwindow.hxx"
  24
  25 #include <vcl/floatwin.hxx>
  26 #include <vcl/menu.hxx>
  27
  28 #define EXTRASPACEY         2
  29 #define GUTTERBORDER        8
  30
  31 /** Class that implements the actual window of the floating menu.
  32 */
  33 class MenuFloatingWindow : public FloatingWindow, public MenuWindow
  34 {
  35     friend void Menu::ImplFillLayoutData() const;
  36     friend void Menu::dispose();
  37
  38 private:
  39     VclPtr<Menu> pMenu;
  40     VclPtr<PopupMenu> pActivePopup;
  41     Timer aHighlightChangedTimer;
  42     Timer aSubmenuCloseTimer;
  43     Timer aScrollTimer;
  44     VclPtr<vcl::Window> xSaveFocusId;
  45     sal_uInt16 nHighlightedItem; // highlighted/selected Item
  46     sal_uInt16 nMBDownPos;
  47     sal_uInt16 nScrollerHeight;
  48     sal_uInt16 nFirstEntry;
  49     sal_uInt16 nPosInParent;
  50
  51     bool bInExecute : 1;
  52     bool bScrollMenu : 1;
  53     bool bScrollUp : 1;
  54     bool bScrollDown : 1;
  55     bool bIgnoreFirstMove : 1;
  56     bool bKeyInput : 1;
  57
  58     DECL_LINK( PopupEnd, FloatingWindow*, void );
  59     DECL_LINK( HighlightChanged, Timer*, void );
  60     DECL_LINK( SubmenuClose, Timer *, void );
  61     DECL_LINK( AutoScroll, Timer *, void );
  62     DECL_LINK( ShowHideListener, VclWindowEvent&, void );
  63
  64     virtual void StateChanged( StateChangedType nType ) override;
  65     virtual void DataChanged( const DataChangedEvent& rDCEvt ) override;
  66
  67     void InitMenuClipRegion(vcl::RenderContext& rRenderContext);
  68
  69     void Start();
  70     void End();
  71
  72 protected:
  73     vcl::Region ImplCalcClipRegion() const;
  74     void ImplDrawScroller(vcl::RenderContext& rRenderContext, bool bUp);
  75     using Window::ImplScroll;
  76     void ImplScroll( const Point& rMousePos );
  77     void ImplScroll( bool bUp );
  78     void ImplCursorUpDown( bool bUp, bool bHomeEnd = false );
  79     void ImplHighlightItem( const MouseEvent& rMEvt, bool bMBDown );
  80     tools::Long ImplGetStartY() const;
  81     tools::Rectangle ImplGetItemRect( sal_uInt16 nPos );
  82     void RenderHighlightItem( vcl::RenderContext& rRenderContext, sal_uInt16 nPos );
  83     tools::Long GetInitialItemY( tools::Long *pOptStartY = nullptr ) const;
  84     void InvalidateItem( sal_uInt16 nPos );
  85
  86 public:
  87     MenuFloatingWindow(Menu* pMenu, vcl::Window* pParent, WinBits nStyle);
  88     virtual ~MenuFloatingWindow() override;
  89
  90     virtual void dispose() override;
  91     void doShutdown();
  92
  93     virtual void MouseMove(const MouseEvent& rMEvt) override;
  94     virtual void MouseButtonDown(const MouseEvent& rMEvt) override;
  95     virtual void MouseButtonUp(const MouseEvent& rMEvt) override;
  96     virtual void KeyInput(const KeyEvent& rKEvent) override;
  97     virtual void Command(const CommandEvent& rCEvt) override;
  98     virtual void Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect) override;
  99     virtual void RequestHelp( const HelpEvent& rHEvt ) override;
 100     virtual void Resize() override;
 101
 102     virtual void ApplySettings(vcl::RenderContext& rRenderContext) override;
 103
 104     void SetFocusId( const VclPtr<vcl::Window>& xId ) { xSaveFocusId = xId; }
 105     const VclPtr<vcl::Window>& GetFocusId() const      { return xSaveFocusId; }
 106
 107     void EnableScrollMenu( bool b );
 108     bool IsScrollMenu() const        { return bScrollMenu; }
 109     sal_uInt16 GetScrollerHeight() const   { return nScrollerHeight; }
 110
 111     void Execute();
 112     void StopExecute();
 113     void EndExecute();
 114     void EndExecute( sal_uInt16 nSelectId );
 115
 116     PopupMenu* GetActivePopup() const  { return pActivePopup; }
 117     void KillActivePopup( PopupMenu* pThisOnly = nullptr );
 118
 119     void ChangeHighlightItem(sal_uInt16 n, bool bStartPopupTimer);
 120     sal_uInt16 GetHighlightedItem() const { return nHighlightedItem; }
 121
 122     void SetPosInParent( sal_uInt16 nPos ) { nPosInParent = nPos; }
 123
 124     bool MenuInHierarchyHasFocus() const;
 125
 126     virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() override;
 127 };
 128
 129 #endif // INCLUDED_VCL_SOURCE_WINDOW_MENUFLOATINGWINDOW_HXX
 130 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */