diff options
| -rw-r--r-- | src/tk.h | 5 | ||||
| -rw-r--r-- | src/tk/button.c | 125 | ||||
| -rw-r--r-- | src/tk/local.mk | 1 |
3 files changed, 131 insertions, 0 deletions
@@ -48,4 +48,9 @@ struct mftk_widget * mftk_label_new(TTF_Font *font, const char *text, SDL_Color *color, SDL_Renderer *renderer); +struct mftk_widget * +mftk_button_new(TTF_Font *font, const char *text, SDL_Color *text_color, + SDL_Color *fill_color, int padding, + int (*action)(void *), void *user_data, SDL_Renderer *renderer); + #endif /* MFTK_H_ */ diff --git a/src/tk/button.c b/src/tk/button.c new file mode 100644 index 0000000..c7d0c5f --- /dev/null +++ b/src/tk/button.c @@ -0,0 +1,125 @@ +/* + * 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 "../tk.h" +#include "widget.h" + +struct mftk_button { + struct mftk_widget parent; + struct mftk_widget *label; + SDL_Color *fill_color; + int padding; + int (*action)(void *); + void *user_data; +}; + +static void +_mftk_button_layout(struct mftk_widget *w) +{ + struct mftk_button *b = (struct mftk_button *) w; + + mftk_widget_layout(b->label); + + w->w = b->label->w + b->padding * 2; + w->h = b->label->h + b->padding * 2; +} + +static int +_mftk_button_event(struct mftk_widget *w, SDL_Event *e) +{ + struct mftk_button *b = (struct mftk_button *) w; + + switch (e->type) { + case SDL_MOUSEBUTTONUP: + if (e->button.button == SDL_BUTTON_LEFT) { + return b->action(b->user_data); + } + break; + default: + break; + } + + return 0; +} + +static int +_mftk_button_render(struct mftk_widget *w, SDL_Renderer *renderer, int x, int y) +{ + struct mftk_button *b = (struct mftk_button *) w; + SDL_Rect rect; + + rect.x = x; + rect.y = y; + rect.w = w->w; + rect.h = w->h; + if (SDL_SetRenderDrawColor(renderer, + b->fill_color->r, b->fill_color->g, + b->fill_color->b, b->fill_color->a) < 0 || + SDL_RenderFillRect(renderer, &rect) < 0) { + SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, + "Couldn't render widget: %s", + SDL_GetError()); + return -1; + } + + if (mftk_widget_render(b->label, renderer, + x + b->padding, y + b->padding) < 0) { + return -1; + } + + return 0; +} + +static void +_mftk_button_destroy(struct mftk_widget *w) +{ + struct mftk_button *b = (struct mftk_button *) w; + + mftk_widget_destroy(&b->label); +} + +struct mftk_widget * +mftk_button_new(TTF_Font *font, const char *text, SDL_Color *text_color, + SDL_Color *fill_color, int padding, + int (*action)(void *), void *user_data, SDL_Renderer *renderer) +{ + struct mftk_widget *w; + struct mftk_button *b; + + if ((w = mftk_widget_new(sizeof(*b))) == NULL) return NULL; + b = (struct mftk_button *) w; + w->layout = &_mftk_button_layout; + w->event = &_mftk_button_event; + w->render = &_mftk_button_render; + w->destroy = &_mftk_button_destroy; + + b->label = mftk_label_new(font, text, text_color, renderer); + if (b->label == NULL) { + free(b); + return NULL; + } + + b->fill_color = fill_color; + b->padding = padding; + b->action = action; + b->user_data = user_data; + + return w; +} diff --git a/src/tk/local.mk b/src/tk/local.mk index 0c37299..cb71e9f 100644 --- a/src/tk/local.mk +++ b/src/tk/local.mk @@ -1,4 +1,5 @@ mazefight_SOURCES += \ + %reldir%/button.c \ %reldir%/label.c \ %reldir%/widget.c \ %reldir%/widget.h |