include/vcl/split.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:
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  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_SPLIT_HXX
  21 #define INCLUDED_VCL_SPLIT_HXX
  22
  23 #include <vcl/dllapi.h>
  24 #include <vcl/keycod.hxx>
  25 #include <vcl/window.hxx>
  26
  27 #define SPLITTER_DEFAULTSTEPSIZE 0xFFFF
  28
  29 class VCL_DLLPUBLIC Splitter : public vcl::Window
  30 {
  31 private:
  32     VclPtr<vcl::Window> mpRefWin;
  33     long                mnSplitPos;
  34     long                mnLastSplitPos;
  35     long                mnStartSplitPos;
  36     Point               maDragPos;
  37     tools::Rectangle           maDragRect;
  38     bool                mbHorzSplit;
  39     bool                mbDragFull;
  40     bool                mbKbdSplitting;
  41     bool                mbInKeyEvent;
  42     long                mnKeyboardStepSize;
  43     Link<Splitter*,void>   maStartSplitHdl;
  44     Link<Splitter*,void>   maSplitHdl;
  45     Link<Splitter*,void>   maEndSplitHdl;
  46
  47     SAL_DLLPRIVATE void      ImplDrawSplitter();
  48     SAL_DLLPRIVATE void      ImplSplitMousePos( Point& rPos );
  49     SAL_DLLPRIVATE void      ImplStartKbdSplitting();
  50     SAL_DLLPRIVATE void      ImplKbdTracking( vcl::KeyCode aKeyCode );
  51     SAL_DLLPRIVATE bool      ImplSplitterActive();
  52     SAL_DLLPRIVATE Splitter* ImplFindSibling();
  53     SAL_DLLPRIVATE void      ImplRestoreSplitter();
  54     SAL_DLLPRIVATE void      ImplInitHorVer(bool bNew);
  55
  56                              Splitter (const Splitter &) = delete;
  57                              Splitter& operator= (const Splitter &) = delete;
  58
  59 protected:
  60     using Window::ImplInit;
  61     SAL_DLLPRIVATE void      ImplInit( vcl::Window* pParent, WinBits nWinStyle );
  62
  63 public:
  64     explicit            Splitter( vcl::Window* pParent, WinBits nStyle = WB_VSCROLL );
  65     virtual             ~Splitter() override;
  66     virtual void        dispose() override;
  67
  68     void                StartSplit();
  69     void                EndSplit();
  70     void                Split();
  71
  72     virtual void        MouseButtonDown( const MouseEvent& rMEvt ) override;
  73     virtual void        Tracking( const TrackingEvent& rTEvt ) override;
  74
  75     virtual void        GetFocus() override;
  76     virtual void        LoseFocus() override;
  77     virtual void        KeyInput( const KeyEvent& rKEvt ) override;
  78     virtual void        Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rPaintRect ) override;
  79     virtual Size        GetOptimalSize() const override;
  80
  81     virtual void        DataChanged( const DataChangedEvent& rDCEvt ) override;
  82
  83     void                StartDrag();
  84
  85     void                SetDragRectPixel( const tools::Rectangle& rDragRect,
  86                                           vcl::Window* pRefWin = nullptr );
  87
  88     void                SetSplitPosPixel( long nPos );
  89     long                GetSplitPosPixel() const { return mnSplitPos; }
  90
  91     bool                IsHorizontal() const { return mbHorzSplit; }
  92     void                SetHorizontal(bool bNew);
  93
  94     // set the stepsize of the splitter for cursor movement
  95     // the default is 10% of the reference window's width/height
  96     void                SetKeyboardStepSize( long nStepSize );
  97
  98     void                SetStartSplitHdl( const Link<Splitter*,void>& rLink ) { maStartSplitHdl = rLink; }
  99     void                SetSplitHdl( const Link<Splitter*,void>& rLink ) { maSplitHdl = rLink; }
 100     void                SetEndSplitHdl( const Link<Splitter*,void>& rLink ) { maEndSplitHdl = rLink; }
 101 };
 102
 103 #endif // INCLUDED_VCL_SPLIT_HXX
 104
 105 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */