button.c

MinGUI 可视化程序代码

 /******************************************************************************
*
* Copyright  2006 National ASIC Center, All right Reserved
*
* FILE NAME:      Button.c
* PROGRAMMER:     ming.c
* Date of Creation:   2006/08/8
*
* DESCRIPTION:
*
* NOTE:
*
* FUNCTIONS LIST:
* -----------------------------------------------------------------------------
*
* -----------------------------------------------------------------------------
* 
* MODIFICATION HISTORY
*     LastModify  2006/10/30
******************************************************************************/
#include "mingui.h"
//---------------------------------------------------------------------------
void Button_Repaint(HWND hWnd)
{ char *BtnCaption;
  HDC dc=BeginPaint(hWnd);
  int clientWidth=crWidth(hWnd),clientHeight=crHeight(hWnd);
  
  /*画位图*/
  if(WNDPTR(hWnd)->Logo)
  { int x,y;
    if( WNDPTR(hWnd)->Logo->Width < clientWidth )
    { x  =  ( (clientWidth - WNDPTR(hWnd)->Logo->Width)>>1 );
    } else x=0;
             
    if( WNDPTR(hWnd)->Logo->Height < clientHeight )
    { y =  ( (clientHeight - WNDPTR(hWnd)->Logo->Height)>>1 );
    } else y=0;
    DrawBitmap(dc,x,y,WNDPTR(hWnd)->Logo);
  }

  /*画标题*/
  BtnCaption=GetWindowText(hWnd);
  if(BtnCaption && *BtnCaption)
  {	SetPenLogic(dc,PL_REPLACE);
    if(WndGetAttr(hWnd,WS_DISABLED))
    { SetColor(dc,CL_WHITE);
      DrawText(dc,1,1,clientWidth,clientHeight,BtnCaption,alCenter|alMiddle);
      SetColor(dc,CL_DARKGRAY);
      DrawText(dc,0,0,clientWidth,clientHeight,BtnCaption,alCenter|alMiddle);
    }
    else
    { DrawText(dc,0,0,clientWidth,clientHeight,BtnCaption,alCenter|alMiddle);
    }
  }

  if(WndGetAttr(hWnd,WS_FOCUS))
  { /*画焦点状态按钮内虚线框*/
    if(!WNDPTR(hWnd)->Logo  &&  !WndGetAttr(hWnd,BS_MENU))
    { SetPenLogic(dc,PL_XOR);
      SetColor(dc,CL_SOLID);
      DrawDashedRect(dc,3,3,clientWidth-6,clientHeight-6);
    }
    /*画焦点状态按钮反白显示*/
   if(WndGetAttr(hWnd,BS_MENU))
    { SetPenLogic(dc,PL_XOR);
      SetColor(dc,CL_SOLID);
      FillRect(dc,0,0,clientWidth,clientHeight);
    }
  }

  EndPaint(hWnd);
}
//---------------------------------------------------------------------------
static HRESULT CALLBACK DefButtonProc(HWND hWnd,UINT message,WPARAM wParam,LPARAM lParam)
{ switch(message)
  { case WM_LBUTTONDOWN:
			WndAddAttr(hWnd,BS_PUSHED);
			InvalidateNCArea(hWnd);
			CMD_NotifyParent(hWnd,BN_PUSHED);
         break;/*DefWindowProc will deal with focus change events*/

    case WM_LBUTTONUP:
			WndSubAttr(hWnd,BS_PUSHED);
			InvalidateNCArea(hWnd);
			CMD_NotifyParent(hWnd,BN_UNPUSHED);
         break;/*DefWindowProc will dispatch BN_CLICKED events*/

    case WM_KEYUP:
		   if(wParam==VK_RETURN && WndGetAttr(hWnd,WS_FOCUS)) 
		   { CMD_NotifyParent(hWnd,BN_CLICKED);
		   }
		 return 0;

	case WM_PAINT:
  	       Button_Repaint(hWnd);
         return 0;

    case WM_KILLFOCUS:
    case WM_SETFOCUS:
            InvalidateWindow(hWnd,true);
         return 0;

    case WM_ENABLE:
            Invalidate(hWnd);
         return 0;

    case WM_SETTEXT:
         if(SaveWindowText(hWnd,(char *)lParam))
         { Invalidate(hWnd);
		 }
         return 0;

    case WM_SETLOGO:
            WNDPTR(hWnd)->Logo=(TBitmap *)lParam;
            Invalidate(hWnd);
         return 0;

    case WM_NCCALCSIZE:
	     if(WndGetAttr(hWnd,WS_BORDER) && lParam)
		 { InflateRect((TRECT *)lParam, -2, -2);
		 }
		 return 0;

    case WM_NCPAINT:
          if(WndGetAttr(hWnd,WS_BORDER))
		  { HDC dc=GetDC(hWnd);
			DrawFrame(dc,0,0,absWidth(hWnd),absHeight(hWnd),WndGetAttr(hWnd,WS_FOCUS),WndGetAttr(hWnd,BS_PUSHED));
		    ReleaseDC(dc);
		  }
		 return 0;
  }
 return DefWindowProc(hWnd,message,wParam,lParam);
}

//---------------------------------------------------------------------------
void CM_RegisterButton(void)
{  TWNDCLASS wc;
   memset(&wc,0,sizeof(wc));
   wc.clForeground=CL_BTNTEXT;
   wc.clBackground=CL_BTNFACE;
   wc.lpfnWndProc=DefButtonProc;
   wc.lpszClassName="button";
   RegisterClass(&wc);
}
/*---------------------------------------------------------------------------
END --- Thank you!                                                  ming.c
---------------------------------------------------------------------------*/