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/*
* Copyright (C) 2021 P. J. McDermott
*
* This file is part of Maze Fight
*
* Maze Fight is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Maze Fight 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Maze Fight. If not, see <http://www.gnu.org/licenses/>.
*/
#include <SDL.h>
#include <SDL_ttf.h>
#include <stdlib.h>
#include "ttf.h"
SDL_Texture *
mf_ttf_render(TTF_Font *font, const char *text, SDL_Color *color,
SDL_Renderer *renderer, SDL_Rect *rect)
{
SDL_Surface *surface;
SDL_Texture *texture;
int line_skip;
int ascent;
int max_y;
const char *c;
int glyph_max_y;
surface = TTF_RenderUTF8_Blended(font, text, *color);
if (surface == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Couldn't create surface: %s",
TTF_GetError());
return NULL;
}
texture = SDL_CreateTextureFromSurface(renderer, surface);
if (texture == NULL) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Couldn't create texture: %s",
SDL_GetError());
SDL_FreeSurface(surface);
return NULL;
}
line_skip = TTF_FontLineSkip(font);
ascent = TTF_FontAscent (font);
max_y = 0;
for (c = text; *c != '\0'; ++c) {
if (TTF_GlyphMetrics(font, *c, NULL, NULL, NULL, &glyph_max_y,
NULL) < 0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
"Couldn't get glyph metrics: %s",
SDL_GetError());
continue;
}
if (glyph_max_y > max_y) {
max_y = glyph_max_y;
}
}
rect->x = 0;
rect->y = (line_skip - ascent) / 2 + (ascent - max_y);
rect->w = surface->w;
rect->h = surface->h;
SDL_FreeSurface(surface);
return texture;
}
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