workbench/demos/intuitext.c

   1 ;/* intuitext.c - Execute me to compile me with SAS C 5.10
   2 LC -b1 -cfistq -v -y -j73 intuitext.c
   3 Blink FROM LIB:c.o,intuitext.o TO intuitext LIBRARY LIB:LC.lib,LIB:Amiga.lib
   4 quit
   5 */
   6
   7 /*
   8 Copyright (c) 1992 Commodore-Amiga, Inc.
   9
  10 This example is provided in electronic form by Commodore-Amiga, Inc. for
  11 use with the "Amiga ROM Kernel Reference Manual: Libraries", 3rd Edition,
  12 published by Addison-Wesley (ISBN 0-201-56774-1).
  13
  14 The "Amiga ROM Kernel Reference Manual: Libraries" contains additional
  15 information on the correct usage of the techniques and operating system
  16 functions presented in these examples.  The source and executable code
  17 of these examples may only be distributed in free electronic form, via
  18 bulletin board or as part of a fully non-commercial and freely
  19 redistributable diskette.  Both the source and executable code (including
  20 comments) must be included, without modification, in any copy.  This
  21 example may not be published in printed form or distributed with any
  22 commercial product.  However, the programming techniques and support
  23 routines set forth in these examples may be used in the development
  24 of original executable software products for Commodore Amiga computers.
  25
  26 All other rights reserved.
  27
  28 This example is provided "as-is" and is subject to change; no
  29 warranties are made.  All use is at your own risk. No liability or
  30 responsibility is assumed.
  31 */
  32
  33
  34 /*
  35 ** intuitext.c - program to show the use of an Intuition IntuiText object.
  36 */
  37 #define INTUI_V36_NAMES_ONLY
  38
  39 #include <exec/types.h>
  40 #include <intuition/intuition.h>
  41
  42 #include <proto/exec.h>
  43 #include <proto/dos.h>
  44 #include <proto/intuition.h>
  45
  46 #include <stdio.h>
  47
  48 static const char version[] __attribute__((used)) = "$VER: intuitext 41.1 (14.3.1997)\n";
  49
  50 #ifdef __AROS__
  51 #ifdef __chip
  52 #undef __chip
  53 #endif
  54 #define __chip
  55 #include <proto/alib.h>
  56 #endif
  57
  58 #ifdef LATTICE
  59 int CXBRK(void)    { return(0); }  /* Disable Lattice CTRL/C handling */
  60 int chkabort(void) { return(0); }  /* really */
  61 #endif
  62
  63 struct IntuitionBase *IntuitionBase = NULL;
  64
  65 #define MYTEXT_LEFT (0)
  66 #define MYTEXT_TOP  (0)
  67
  68 /*
  69 ** main routine. Open required library and window and draw the images.
  70 ** This routine opens a very simple window with no IDCMP.  See the
  71 ** chapters on "Windows" and "Input and Output Methods" for more info.
  72 ** Free all resources when done.
  73 */
  74 int main(int argc, char **argv)
  75 {
  76 struct Screen    *screen;
  77 struct DrawInfo  *drawinfo;
  78 struct Window    *win;
  79 struct IntuiText  myIText;
  80 struct TextAttr   myTextAttr;
  81
  82 ULONG myTEXTPEN;
  83 ULONG myBACKGROUNDPEN;
  84
  85 IntuitionBase = (struct IntuitionBase *)OpenLibrary("intuition.library",37);
  86 if (IntuitionBase)
  87     {
  88 #ifdef __AROS__
  89     if ((screen = LockPubScreen(NULL)))
  90 #else
  91     if (screen = LockPubScreen(NULL))
  92 #endif
  93         {
  94 #ifdef __AROS__
  95         if ((drawinfo = GetScreenDrawInfo(screen)))
  96 #else
  97         if (drawinfo = GetScreenDrawInfo(screen))
  98 #endif
  99             {
 100             /* Get a copy of the correct pens for the screen.
 101             ** This is very important in case the user or the
 102             ** application has the pens set in a unusual way.
 103             */
 104             myTEXTPEN = drawinfo->dri_Pens[TEXTPEN];
 105             myBACKGROUNDPEN  = drawinfo->dri_Pens[BACKGROUNDPEN];
 106
 107             /* create a TextAttr that matches the specified font. */
 108             myTextAttr.ta_Name  = drawinfo->dri_Font->tf_Message.mn_Node.ln_Name;
 109             myTextAttr.ta_YSize = drawinfo->dri_Font->tf_YSize;
 110             myTextAttr.ta_Style = drawinfo->dri_Font->tf_Style;
 111             myTextAttr.ta_Flags = drawinfo->dri_Font->tf_Flags;
 112
 113             /* open a simple window on the workbench screen for displaying
 114             ** a text string.  An application would probably never use such a
 115             ** window, but it is useful for demonstrating graphics...
 116             */
 117 #ifdef __AROS__
 118             if ((win = OpenWindowTags(NULL,
 119                                 WA_PubScreen,    (IPTR)screen,
 120                                 WA_RMBTrap,      TRUE,
 121                                 WA_IDCMP,        IDCMP_RAWKEY,
 122                                 TAG_END)))
 123 #else
 124             if (win = OpenWindowTags(NULL,
 125                                 WA_PubScreen,    screen,
 126                                 WA_RMBTrap,      TRUE,
 127                                 TAG_END))
 128 #endif
 129                 {
 130                 myIText.FrontPen    = myTEXTPEN;
 131                 myIText.BackPen     = myBACKGROUNDPEN;
 132                 myIText.DrawMode    = JAM2;
 133                 myIText.LeftEdge    = MYTEXT_LEFT;
 134                 myIText.TopEdge     = MYTEXT_TOP;
 135                 myIText.ITextFont   = &myTextAttr;
 136                 myIText.IText       = "Hello, World.  ;-)";
 137                 myIText.NextText    = NULL;
 138
 139                 /* Draw the text string at 10,10 */
 140                 PrintIText(win->RPort,&myIText,10,10);
 141
 142 #ifdef __AROS__
 143                 /* Wait for keypress */
 144                 Wait (1L << win->UserPort->mp_SigBit);
 145 #else
 146                 /* Wait a bit, then quit.
 147                 ** In a real application, this would be an event loop,
 148                 ** like the one described in the Intuition Input and
 149                 ** Output Methods chapter.
 150                 */
 151                 Delay(200);
 152 #endif
 153
 154                 CloseWindow(win);
 155                 }
 156             FreeScreenDrawInfo(screen,drawinfo);
 157             }
 158         UnlockPubScreen(NULL,screen);
 159         }
 160     CloseLibrary((struct Library *)IntuitionBase);
 161     }
 162     return 0;
 163 }