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WBPen.cpp
资源名称：视频会议系统.rar　[点击查看]
上传用户：popouu88
上传日期：2013-02-11
资源大小：2894k
文件大小：3k
源码类别：

IP电话/视频会议

开发平台：

Visual C++

WBPen.cpp：源码内容
  1. // WBPen.cpp: implementation of the CWBPen class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  5. #include "stdafx.h"
  6. #include "..WB.h"
  7. #include "WBPen.h"
  9. #ifdef _DEBUG
  10. #undef THIS_FILE
  11. static char THIS_FILE[]=__FILE__;
  12. #define new DEBUG_NEW
  13. #endif
  15. #pragma comment( lib , "msimg32.lib" )
  16. //////////////////////////////////////////////////////////////////////
  17. // Construction/Destruction
  18. //////////////////////////////////////////////////////////////////////
  20. CWBPen::CWBPen( CDrawView * view , int ps ) : CDraw( view )
  21. {
  22. this->type = ! ps ? PEN : PEN1;
  24. CDC * pDC = this->view->GetMemDC( );
  26. this->memDC.CreateCompatibleDC( pDC );
  28. this->bitmap.CreateCompatibleBitmap( pDC , this->dcSize.cx , this->dcSize.cy );
  30. this->memDC.SelectObject( &this->bitmap );
  32. this->memDC.FillSolidRect( 0 , 0 , this->dcSize.cx , this->dcSize.cy , this->memDC.GetBkColor( ) );
  33. }
  35. CWBPen::~CWBPen()
  36. {
  37. }
  39. void CWBPen::LButtonDown( UINT nFlags , CPoint point )
  40. {
  41. CDraw::LButtonDown( nFlags , point );
  43. if( nFlags & MK_LBUTTON )
  44. {
  45. this->memDC.SelectObject( &this->pen );
  47. this->memDC.MoveTo( point );
  49. this->view->GetMemDC( )->MoveTo( point );
  51. this->start = this->end = point;
  52. }
  53. }
  55. void CWBPen::LButtonUp( UINT nFlags , CPoint point )
  56. {
  57. CWaitCursor cursor;
  59. int width = this->GetWidth( );
  61. this->start.Offset( - width , - width );
  63. this->end.Offset( width , width );
  65. CRect rc( this->start , this->end );
  67. rc.NormalizeRect( );
  69. if( this->rgn.GetSafeHandle( ) )
  71. this->rgn.DeleteObject( );
  73. this->rgn.CreateRectRgn( 0 , 0 , 0 , 0 );
  75. CRgn r;
  77. int color = this->memDC.GetBkColor( );
  79. for( int h = rc.top; h < rc.bottom; h ++ )
  81. for( int w = rc.left; w < rc.right; w ++ )
  83. if( this->memDC.GetPixel( w , h ) != color )
  84. {
  85. r.CreateRectRgn( w , h , w + 1 , h + 1 );
  87. this->rgn.CombineRgn( &this->rgn , &r , RGN_OR );
  89. r.DeleteObject( );
  90. }
  91.    if( this->memDC.GetSafeHdc( ) )
  93.    this->memDC.DeleteDC( );
  95.    if( this->bitmap.GetSafeHandle( ) )
  97.    this->bitmap.DeleteObject( );
  98. }
  100. void CWBPen::MouseMove( UINT nFlags , CPoint point )
  101. {
  102. if( nFlags & MK_LBUTTON )
  103. {
  104. if( this->start.x > point.x ) this->start.x = point.x;
  106. if( this->start.y > point.y ) this->start.y = point.y;
  108. if( this->end.x < point.x ) this->end.x = point.x;
  110. if( this->end.y < point.y ) this->end.y = point.y;
  112. this->memDC.SelectObject( &this->pen );
  114. this->memDC.LineTo( point );
  116. this->view->GetMemDC( )->SelectObject( &this->pen );
  118. this->view->GetMemDC( )->LineTo( point );
  120. this->view->Invalidate( );
  121. }
  122. }
  124. CDC * CWBPen::Draw( CDC * pDC )
  125. {
  126. pDC = CDraw::Draw( pDC );
  128. return pDC;
  129. }