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/* testbench.cpp -- A companion library to SDL for working with Pango.
Copyright (C) 2004 NAKAMURA Ken'ichi
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "SDL2_Pango.h"
#include "stdio.h"
#include "stdlib.h"
SDLPango_Context *context;
SDL_Window *window;
char *text;
int resizeLoop(SDL_Surface **framebuf)
{
SDL_Event event;
while( SDL_PollEvent( &event ) ){
switch( event.type ){
case SDL_QUIT:
return 0;
case SDL_WINDOWEVENT:
if(event.window.event == SDL_WINDOWEVENT_RESIZED)
*framebuf = SDL_GetWindowSurface(window);
break;
case SDL_KEYUP:
if(event.key.keysym.sym == SDLK_RETURN)
SDLPango_SetMarkup(context, text, -1);
else if(event.key.keysym.sym == SDLK_SPACE)
SDLPango_SetText(context, text, -1);
break;
default:
break;
}
}
return -1;
}
char *readFile(const char *filename)
{
long file_size;
char *text;
FILE *file = fopen(filename, "rb");
if(! file)
exit(1);
fseek(file, 0, SEEK_END);
file_size = ftell(file);
fseek(file, 0, SEEK_SET);
text = (char *)malloc(file_size + 1);
(void)!fread(text, file_size, 1, file); /* (void)! suppresses unused-result warning */
text[file_size] = '\0';
return text;
}
int main(int argc, char *argv[])
{
SDL_Surface *framebuf;
SDL_Surface *surface;
if(argc == 1) {
fprintf(stderr, "Usage: ./testbench markup.txt\n");
exit(1);
}
if(SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "%s\n", SDL_GetError());
exit(1);
}
if(SDLPango_Init() < 0) {
fprintf(stderr, "Failed to initialize SDL2_Pango\n");
SDL_Quit();
exit(1);
}
window = SDL_CreateWindow(NULL, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_SWSURFACE | SDL_WINDOW_RESIZABLE);
if(!window) {
fprintf(stderr, "%s\n", SDL_GetError());
SDL_Quit();
exit(1);
}
framebuf = SDL_GetWindowSurface(window);
if(!framebuf) {
fprintf(stderr, "%s\n", SDL_GetError());
SDL_Quit();
exit(1);
}
context = SDLPango_CreateContext();
if(!context) {
fprintf(stderr, "Failed to create SDL2_Pango context\n");
SDL_Quit();
exit(1);
}
#ifdef SET_DPI
SDLPango_SetDpi(context, 200.0, 200.0);
#endif
SDLPango_SetDefaultColor(context, MATRIX_TRANSPARENT_BACK_WHITE_LETTER);
SDLPango_SetMinimumSize(context, 640, 0);
#ifdef SET_BASE_DIRECTION
SDLPango_SetBaseDirection(context, SDLPANGO_DIRECTION_RTL);
#endif
text = readFile(argv[1]);
surface = NULL;
SDLPango_SetMarkup(context, text, -1);
while(resizeLoop(&framebuf)) {
SDL_Surface *surface;
SDLPango_SetMinimumSize(context, framebuf->w, 0);
#ifdef GET_LAYOUT_WIDTH
{
int w, h;
w = SDLPango_GetLayoutWidth(context);
h = SDLPango_GetLayoutHeight(context);
}
#endif
#ifdef CREATE_SURFACE_DRAW
surface = SDLPango_CreateSurfaceDraw(context);
#else
surface = SDL_CreateRGBSurface(SDL_SWSURFACE, framebuf->w, framebuf->h,
32, (Uint32)(255 << (8 * 3)), (Uint32)(255 << (8 * 2)),
(Uint32)(255 << (8 * 1)), 255);
SDLPango_Draw(context, surface, 0, 0);
#endif
SDL_FillRect(framebuf, NULL, SDL_MapRGBA(framebuf->format, 0, 0, 0, 0));
SDL_BlitSurface(surface, NULL, framebuf, NULL);
SDL_UpdateWindowSurface(window);
SDL_FreeSurface(surface);
}
free(text);
SDLPango_FreeContext(context);
SDL_Quit();
return 0;
}
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