src/ui/ResizableLib/ResizableGrip.h

   1 // ResizableGrip.h: interface for the CResizableGrip class.
   2 //
   3 /////////////////////////////////////////////////////////////////////////////
   4 //
   5 // Copyright (C) 2000-2002 by Paolo Messina
   6 // (http://www.geocities.com/ppescher - ppescher@yahoo.com)
   7 //
   8 // The contents of this file are subject to the Artistic License (the "License").
   9 // You may not use this file except in compliance with the License.
  10 // You may obtain a copy of the License at:
  11 // http://www.opensource.org/licenses/artistic-license.html
  12 //
  13 // If you find this code useful, credits would be nice!
  14 //
  15 /////////////////////////////////////////////////////////////////////////////
  16
  17 #if !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)
  18 #define AFX_RESIZABLEGRIP_H__INCLUDED_
  19
  20 #if _MSC_VER > 1000
  21 #pragma once
  22 #endif // _MSC_VER > 1000
  23
  24 class CResizableGrip
  25 {
  26 private:
  27         class CSizeGrip : public CScrollBar
  28         {
  29         public:
  30                 CSizeGrip()
  31                 {
  32                         m_bTransparent = FALSE;
  33                         m_bTriangular = FALSE;
  34                         m_size.cx = 0;
  35                         m_size.cy = 0;
  36                 }
  37
  38                 void SetTriangularShape(BOOL bEnable);
  39                 void SetTransparency(BOOL bActivate);
  40
  41                 BOOL IsRTL();                   // right-to-left layout support
  42
  43                 virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
  44
  45                 SIZE m_size;                    // holds grip size
  46
  47         protected:
  48                 virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
  49
  50                 BOOL m_bTriangular;             // triangular shape active
  51                 BOOL m_bTransparent;    // transparency active
  52
  53                 // memory DCs and bitmaps for transparent grip
  54                 CDC m_dcGrip, m_dcMask;
  55                 CBitmap m_bmGrip, m_bmMask;
  56         };
  57
  58         CSizeGrip m_wndGrip;            // grip control
  59         int m_nShowCount;                       // support for hiding the grip
  60
  61 protected:
  62         // create a size grip, with options
  63         BOOL CreateSizeGrip(BOOL bVisible = TRUE,
  64                 BOOL bTriangular = TRUE, BOOL bTransparent = FALSE);
  65
  66         BOOL IsSizeGripVisible();       // TRUE if grip is set to be visible
  67         void SetSizeGripVisibility(BOOL bVisible);      // set default visibility
  68         void UpdateSizeGrip();          // update the grip's visibility and position
  69         void ShowSizeGrip(DWORD* pStatus, DWORD dwMask = 1);    // temp show the size grip
  70         void HideSizeGrip(DWORD* pStatus, DWORD dwMask = 1);    // temp hide the size grip
  71         BOOL SetSizeGripBkMode(int nBkMode);            // like CDC::SetBkMode
  72         void SetSizeGripShape(BOOL bTriangular);
  73
  74         virtual CWnd* GetResizableWnd() = 0;
  75
  76 public:
  77         CResizableGrip();
  78         virtual ~CResizableGrip();
  79 };
  80
  81 #endif // !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)