test/testbench.c

   1 /*  testbench.cpp -- A companion library to SDL for working with Pango.
   2     Copyright (C) 2004 NAKAMURA Ken'ichi
   3
   4     This library is free software; you can redistribute it and/or
   5     modify it under the terms of the GNU Lesser General Public
   6     License as published by the Free Software Foundation; either
   7     version 2.1 of the License, or (at your option) any later version.
   8
   9     This library is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12     Lesser General Public License for more details.
  13
  14     You should have received a copy of the GNU Lesser General Public
  15     License along with this library; if not, write to the Free Software
  16     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  17 */
  18
  19 #include "SDL_Pango.h"
  20 #include "stdio.h"
  21 #include "stdlib.h"
  22
  23 SDLPango_Context *context;
  24 char *text;
  25
  26 int resizeLoop(SDL_Surface **framebuf)
  27 {
  28     SDL_Event event;
  29
  30     while( SDL_PollEvent( &event ) ){
  31         switch( event.type ){
  32         case SDL_QUIT:
  33             return 0;
  34
  35         case  SDL_VIDEORESIZE:
  36             *framebuf = SDL_SetVideoMode(event.resize.w, event.resize.h, 32, SDL_SWSURFACE | SDL_RESIZABLE);
  37             break;
  38
  39         case SDL_KEYUP:
  40             if(event.key.keysym.sym == SDLK_RETURN)
  41                 SDLPango_SetMarkup(context, text, -1);
  42             else if(event.key.keysym.sym == SDLK_SPACE)
  43                 SDLPango_SetText(context, text, -1);
  44             break;
  45
  46         default:
  47             break;
  48         }
  49     }
  50
  51     return -1;
  52 }
  53
  54 char *readFile(const char *filename)
  55 {
  56     long file_size;
  57     char *text;
  58     FILE *file = fopen(filename, "rb");
  59     if(! file)
  60         exit(1);
  61
  62     fseek(file, 0, SEEK_END);
  63     file_size = ftell(file);
  64     fseek(file, 0, SEEK_SET);
  65     text = (char *)malloc(file_size + 1);
  66     fread(text, file_size, 1, file);
  67     text[file_size] = '\0';
  68
  69     return text;
  70 }
  71
  72 int main(int argc, char *argv[])
  73 {
  74     SDL_Surface *framebuf;
  75     SDL_Surface *surface;
  76     if(argc == 1)
  77         exit(1);
  78
  79     SDL_Init(SDL_INIT_VIDEO);
  80     SDLPango_Init();
  81
  82     framebuf = SDL_SetVideoMode(640, 480, 32, SDL_SWSURFACE | SDL_RESIZABLE);
  83
  84     context = SDLPango_CreateContext();
  85
  86 #ifdef SET_DPI
  87     SDLPango_SetDpi(context, 200.0, 200.0);
  88 #endif
  89
  90     SDLPango_SetDefaultColor(context, MATRIX_TRANSPARENT_BACK_WHITE_LETTER);
  91
  92     SDLPango_SetMinimumSize(context, 640, 0);
  93
  94 #ifdef SET_BASE_DIRECTION
  95     SDLPango_SetBaseDirection(context, SDLPANGO_DIRECTION_RTL);
  96 #endif
  97
  98     text = readFile(argv[1]);
  99
 100     surface = NULL;
 101     SDLPango_SetMarkup(context, text, -1);
 102
 103     while(resizeLoop(&framebuf)) {
 104         SDL_Surface *surface;
 105
 106         SDLPango_SetMinimumSize(context, framebuf->w, 0);
 107
 108 #ifdef GET_LAUOUT_WIDTH
 109         {
 110             int w, h;
 111             w = SDLPango_GetLayoutWidth(context);
 112             h = SDLPango_GetLayoutHeight(context);
 113         }
 114 #endif
 115
 116 #ifdef CREATE_SURFACE_DRAW
 117         surface = SDLPango_CreateSurfaceDraw(context);
 118 #else
 119         surface = SDL_CreateRGBSurface(SDL_SWSURFACE, framebuf->w, framebuf->h,
 120             32, (Uint32)(255 << (8 * 3)), (Uint32)(255 << (8 * 2)),
 121             (Uint32)(255 << (8 * 1)), 255);
 122         SDLPango_Draw(context, surface, 0, 0);
 123 #endif
 124
 125         SDL_FillRect(framebuf, NULL, SDL_MapRGBA(framebuf->format, 0, 0, 0, 0));
 126         SDL_BlitSurface(surface, NULL, framebuf, NULL);
 127         SDL_UpdateRect(framebuf, 0, 0, framebuf->w, framebuf->h);
 128
 129         SDL_FreeSurface(surface);
 130     }
 131
 132     free(text);
 133
 134     SDLPango_FreeContext(context);
 135
 136     SDL_Quit();
 137     return 0;
 138 }
 139