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                 }
  47
  48                 void SetTriangularShape(BOOL bEnable);
  49                 void SetTransparency(BOOL bActivate);
  50
  51                 BOOL IsRTL();                   // right-to-left layout support
  52
  53                 LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam) override;
  54
  55                 SIZE m_size{};                  // holds grip size
  56
  57         protected:
  58                 BOOL PreCreateWindow(CREATESTRUCT& cs) override;
  59
  60                 BOOL m_bTriangular = FALSE;             // triangular shape active
  61                 BOOL m_bTransparent = FALSE;    // transparency active
  62
  63                 // memory DCs and bitmaps for transparent grip
  64                 CDC m_dcGrip, m_dcMask;
  65                 CBitmap m_bmGrip, m_bmMask;
  66         };
  67 protected:
  68         CSizeGrip m_wndGrip;            // grip control
  69         int m_nShowCount = 0;           // support for hiding the grip
  70
  71 protected:
  72         // create a size grip, with options
  73         BOOL CreateSizeGrip(BOOL bVisible = TRUE,
  74                 BOOL bTriangular = TRUE, BOOL bTransparent = FALSE);
  75
  76         BOOL IsSizeGripVisible();       // TRUE if grip is set to be visible
  77         void SetSizeGripVisibility(BOOL bVisible);      // set default visibility
  78         void UpdateSizeGrip();          // update the grip's visibility and position
  79         void ShowSizeGrip(DWORD* pStatus, DWORD dwMask = 1);    // temp show the size grip
  80         void HideSizeGrip(DWORD* pStatus, DWORD dwMask = 1);    // temp hide the size grip
  81         BOOL SetSizeGripBkMode(int nBkMode);            // like CDC::SetBkMode
  82         void SetSizeGripShape(BOOL bTriangular);
  83
  84         virtual CWnd* GetResizableWnd() const = 0;
  85
  86 public:
  87         CResizableGrip();
  88         virtual ~CResizableGrip();
  89 };
  90
  91 // @}
  92 #endif // !defined(AFX_RESIZABLEGRIP_H__INCLUDED_)