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C/C++ Source or Header  |  1989-02-20  |  6.8 KB  |  180 lines
  1. /*----------------------------------------
  2.    VECTFONT.C -- Vector Font Demo Program
  3.   ----------------------------------------*/
  4.  
  5. #define INCL_WIN
  6. #define INCL_GPI
  7. #include <os2.h>
  8. #include "vectfont.h"
  9.  
  10. MRESULT CALLBACK ClientWndProc (HWND, USHORT, MPARAM, MPARAM) ;
  11.  
  12. HAB hab ;
  13.  
  14. int main (void)
  15.      {
  16.      static CHAR  szClientClass [] = "VectFont" ;
  17.      static ULONG flFrameFlags = FCF_TITLEBAR      | FCF_SYSMENU  |
  18.                                  FCF_SIZEBORDER    | FCF_MINMAX   |
  19.                                  FCF_SHELLPOSITION | FCF_TASKLIST |
  20.                                  FCF_MENU ;
  21.      HMQ          hmq ;
  22.      HWND         hwndFrame, hwndClient ;
  23.      QMSG         qmsg ;
  24.  
  25.      hab = WinInitialize (0) ;
  26.      hmq = WinCreateMsgQueue (hab, 0) ;
  27.  
  28.      WinRegisterClass (hab, szClientClass, ClientWndProc,
  29.                             CS_SIZEREDRAW, 0) ;
  30.  
  31.      hwndFrame = WinCreateStdWindow (HWND_DESKTOP, WS_VISIBLE,
  32.                                      &flFrameFlags, szClientClass,
  33.                                      " - Vector Font Demo", 0L,
  34.                                      NULL, ID_RESOURCE, &hwndClient) ;
  35.  
  36.      WinSendMsg (hwndFrame, WM_SETICON,
  37.                  WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE),
  38.                  NULL) ;
  39.  
  40.      while (WinGetMsg (hab, &qmsg, NULL, 0, 0))
  41.           WinDispatchMsg (hab, &qmsg) ;
  42.  
  43.      WinDestroyWindow (hwndFrame) ;
  44.      WinDestroyMsgQueue (hmq) ;
  45.      WinTerminate (hab) ;
  46.      return 0 ;
  47.      }
  48.  
  49. MRESULT CALLBACK ClientWndProc (HWND hwnd, USHORT msg, MPARAM mp1,
  50.                                                        MPARAM mp2)
  51.      {
  52.      static struct {
  53.                    SHORT idCmd ;
  54.                    VOID (*fn) (HPS, LONG, LONG) ;
  55.                    }
  56.                    vectfont [] = {
  57.                                  IDM_NOTHING,     NULL,
  58.                                  IDM_24POINT,     Display_24Point,
  59.                                  IDM_MIRROR,      Display_Mirror,
  60.                                  IDM_STRETCH,     Display_Stretch,
  61.                                  IDM_CHARANGLE,   Display_CharAngle,
  62.                                  IDM_ROTATE,      Display_Rotate,
  63.                                  IDM_CHARSHEAR,   Display_CharShear,
  64.                                  IDM_SHADOW,      Display_Shadow,
  65.                                  IDM_HOLLOW,      Display_Hollow,
  66.                                  IDM_DROPSHADOW,  Display_DropShadow,
  67.                                  IDM_BLOCK,       Display_Block,
  68.                                  IDM_NEON,        Display_Neon,
  69.                                  IDM_FADE,        Display_Fade,
  70.                                  IDM_SPOKES,      Display_Spokes,
  71.                                  IDM_WAVY,        Display_Wavy,
  72.                                  IDM_MODSPOKES,   Display_ModSpokes
  73.                                  } ;
  74.      static HDC    hdc ;
  75.      static HPS    hps ;
  76.      static HWND   hwndMenu ;
  77.      static POINTL ptlClient ;
  78.      static SHORT  sNumRoutines = sizeof vectfont / sizeof vectfont[0],
  79.                    sDisplay = IDM_NOTHING ;
  80.      INT           i ;
  81.      RECTL         rcl ;
  82.      SIZEL         sizl ;
  83.  
  84.      switch (msg)
  85.           {
  86.           case WM_CREATE:
  87.                hdc = WinOpenWindowDC (hwnd) ;
  88.  
  89.                                    // Create PS use Twips page units
  90.                sizl.cx = 0 ;
  91.                sizl.cy = 0 ;
  92.                hps = GpiCreatePS (hab, hdc, &sizl,
  93.                                        PU_TWIPS     | GPIF_DEFAULT |
  94.                                        GPIT_MICRO   | GPIA_ASSOC) ;
  95.  
  96.                                    // Adjust Page Viewport for points
  97.  
  98.                GpiQueryPageViewport (hps, &rcl) ;
  99.                rcl.xRight *= 20 ;
  100.                rcl.yTop   *= 20 ;
  101.                GpiSetPageViewport (hps, &rcl) ;
  102.  
  103.                hwndMenu = WinWindowFromID (
  104.                                WinQueryWindow (hwnd, QW_PARENT, FALSE),
  105.                                FID_MENU) ;
  106.                return 0 ;
  107.  
  108.           case WM_SIZE:
  109.                ptlClient.x = SHORT1FROMMP (mp2) ;      // client width
  110.                ptlClient.y = SHORT2FROMMP (mp2) ;      // client height
  111.  
  112.                GpiConvert (hps, CVTC_DEVICE, CVTC_PAGE, 1L, &ptlClient);
  113.                return 0 ;
  114.  
  115.           case WM_COMMAND:
  116.                for (i = 0 ; i < sNumRoutines ; i++)
  117.                     if (COMMANDMSG(&msg)->cmd == vectfont[i].idCmd)
  118.                          {
  119.                          if (sDisplay == COMMANDMSG(&msg)->cmd)
  120.                               return 0 ;
  121.  
  122.                          WinSendMsg (hwndMenu, MM_SETITEMATTR,
  123.                                      MPFROM2SHORT (sDisplay, TRUE),
  124.                                      MPFROM2SHORT (MIA_CHECKED, 0)) ;
  125.  
  126.                          sDisplay = COMMANDMSG(&msg)->cmd ;
  127.  
  128.                          WinSendMsg (hwndMenu, MM_SETITEMATTR,
  129.                                      MPFROM2SHORT (sDisplay, TRUE),
  130.                                      MPFROM2SHORT (MIA_CHECKED,
  131.                                                    MIA_CHECKED)) ;
  132.  
  133.                          WinInvalidateRect (hwnd, NULL, FALSE) ;
  134.                          return 0 ;
  135.                          }
  136.                break ;
  137.  
  138.           case WM_PAINT:
  139.                WinBeginPaint (hwnd, hps, NULL) ;
  140.                GpiErase (hps) ;
  141.                                    // Display hourglass pointer
  142.  
  143.                WinSetPointer (HWND_DESKTOP,
  144.                     WinQuerySysPointer (HWND_DESKTOP,SPTR_WAIT,FALSE));
  145.  
  146.                if (!WinQuerySysValue (HWND_DESKTOP, SV_MOUSEPRESENT))
  147.                     WinShowPointer (HWND_DESKTOP, TRUE) ;
  148.  
  149.                                    // Execute font routine
  150.  
  151.                for (i = 0 ; i < sNumRoutines ; i++)
  152.                     if (sDisplay == vectfont[i].idCmd)
  153.                          {
  154.                          if (vectfont[i].fn != NULL)
  155.                               {
  156.                               GpiSavePS (hps) ;
  157.                               vectfont[i].fn (hps, ptlClient.x,
  158.                                                    ptlClient.y) ;
  159.                               GpiRestorePS (hps, -1L) ;
  160.                               }
  161.                          break ;
  162.                          }
  163.                                         // Display arrow pointer
  164.  
  165.                if (!WinQuerySysValue (HWND_DESKTOP, SV_MOUSEPRESENT))
  166.                     WinShowPointer (HWND_DESKTOP, FALSE) ;
  167.  
  168.                WinSetPointer (HWND_DESKTOP,
  169.                     WinQuerySysPointer (HWND_DESKTOP,SPTR_ARROW,FALSE));
  170.  
  171.                WinEndPaint (hps) ;
  172.                return 0 ;
  173.  
  174.           case WM_DESTROY:
  175.                GpiDestroyPS (hps) ;
  176.                return 0 ;
  177.           }
  178.      return WinDefWindowProc (hwnd, msg, mp1, mp2) ;
  179.      }
  180.