fontclip.c

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/*-----------------------------------------------
   FONTCLIP.C -- Using Path for Clipping on Font
                 (c) Charles Petzold, 1998
  -----------------------------------------------*/

#include <windows.h>
#include "..\\eztest\\ezfont.h"

TCHAR szAppName [] = TEXT ("FontClip") ;
TCHAR szTitle [] = TEXT ("FontClip: Using Path for Clipping on Font") ;

void PaintRoutine (HWND hwnd, HDC hdc, int cxArea, int cyArea)
{
     static TCHAR szString [] = TEXT ("Clipping") ;
     HFONT        hFont ;
     int          y, iOffset ;
     POINT        pt [4] ;
     SIZE         size ;

     hFont = EzCreateFont (hdc, TEXT ("Times New Roman"), 1200, 0, 0, TRUE) ;

     SelectObject (hdc, hFont) ;

     GetTextExtentPoint32 (hdc, szString, lstrlen (szString), &size) ;

     BeginPath (hdc) ;
     TextOut (hdc, (cxArea - size.cx) / 2, (cyArea - size.cy) / 2,
                    szString, lstrlen (szString)) ;
     EndPath (hdc) ;

               // Set clipping area

     SelectClipPath (hdc, RGN_COPY) ;

               // Draw Bezier splines

     iOffset = (cxArea + cyArea) / 4 ;

     for (y = -iOffset ; y < cyArea + iOffset ; y++)
     {
          pt[0].x = 0 ;
          pt[0].y = y ;

          pt[1].x = cxArea / 3 ;
          pt[1].y = y + iOffset ;

          pt[2].x = 2 * cxArea / 3 ;
          pt[2].y = y - iOffset ;

          pt[3].x = cxArea ;
          pt[3].y = y ;

          SelectObject (hdc, CreatePen (PS_SOLID, 1,
               RGB (rand () % 256, rand () % 256, rand () % 256))) ;

          PolyBezier (hdc, pt, 4) ;

          DeleteObject (SelectObject (hdc, GetStockObject (BLACK_PEN))) ;
     }

     DeleteObject (SelectObject (hdc, GetStockObject (WHITE_BRUSH))) ;
     SelectObject (hdc, GetStockObject (SYSTEM_FONT)) ;
     DeleteObject (hFont) ;
}