ext/ResizableLib/ResizableGrip.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 //
   3 // This file is part of ResizableLib
   4 // http://sourceforge.net/projects/resizablelib
   5 //
   6 // Copyright (C) 2000-2004 by Paolo Messina
   7 // http://www.geocities.com/ppescher - mailto:ppescher@hotmail.com
   8 //
   9 // The contents of this file are subject to the Artistic License (the "License").
  10 // You may not use this file except in compliance with the License.
  11 // You may obtain a copy of the License at:
  12 // http://www.opensource.org/licenses/artistic-license.html
  13 //
  14 // If you find this code useful, credits would be nice!
  15 //
  16 /////////////////////////////////////////////////////////////////////////////
  17
  18 /*!
  19  *  @file
  20  *  @brief Interface for the CResizableGrip class.
  21  */
  22
  23 #if !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)
  24 #define AFX_RESIZABLEGRIP_H__INCLUDED_
  25
  26 #if _MSC_VER > 1000
  27 #pragma once
  28 #endif // _MSC_VER > 1000
  29
  30 /*! @addtogroup CoreComponents
  31  *  @{
  32  */
  33
  34 //! @brief brief_description
  35 /*!
  36  *  long_description
  37  */
  38 class CResizableGrip
  39 {
  40 private:
  41         class CSizeGrip : public CScrollBar
  42         {
  43         public:
  44                 CSizeGrip()
  45                 {
  46                         m_bTransparent = FALSE;
  47                         m_bTriangular = FALSE;
  48                 }
  49
  50                 void SetTriangularShape(BOOL bEnable);
  51                 void SetTransparency(BOOL bActivate);
  52
  53                 BOOL IsRTL();                   // right-to-left layout support
  54
  55                 virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam);
  56
  57                 SIZE m_size;                    // holds grip size
  58
  59         protected:
  60                 virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
  61
  62                 BOOL m_bTriangular;             // triangular shape active
  63                 BOOL m_bTransparent;    // transparency active
  64
  65                 // memory DCs and bitmaps for transparent grip
  66                 CDC m_dcGrip, m_dcMask;
  67                 CBitmap m_bmGrip, m_bmMask;
  68         };
  69 protected:
  70         CSizeGrip m_wndGrip;            // grip control
  71         int m_nShowCount;                       // support for hiding the grip
  72
  73 protected:
  74         // create a size grip, with options
  75         BOOL CreateSizeGrip(BOOL bVisible = TRUE,
  76                 BOOL bTriangular = TRUE, BOOL bTransparent = FALSE);
  77
  78         BOOL IsSizeGripVisible();       // TRUE if grip is set to be visible
  79         void SetSizeGripVisibility(BOOL bVisible);      // set default visibility
  80         void UpdateSizeGrip();          // update the grip's visibility and position
  81         void ShowSizeGrip(DWORD* pStatus, DWORD dwMask = 1);    // temp show the size grip
  82         void HideSizeGrip(DWORD* pStatus, DWORD dwMask = 1);    // temp hide the size grip
  83         BOOL SetSizeGripBkMode(int nBkMode);            // like CDC::SetBkMode
  84         void SetSizeGripShape(BOOL bTriangular);
  85
  86         virtual CWnd* GetResizableWnd() const = 0;
  87
  88 public:
  89         CResizableGrip();
  90         virtual ~CResizableGrip();
  91 };
  92
  93 // @}
  94 #endif // !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)