view src/libmlk-ui/ui/button.h @ 409:6011ad866e99

ui: delete action functions The handling of actions is done without taking care of the return value which make it impossible to detect UI elements since it's a immediate mode like implementation. Users are encouraged to write code like instead: ``` if (button_handle(&b, &ev)) { // Do something. } ```
author David Demelier <markand@malikania.fr>
date Fri, 09 Sep 2022 09:27:17 +0200
parents 460c78706989
children 8f59201dc76b
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/*
 * button.h -- GUI button
 *
 * Copyright (c) 2020-2022 David Demelier <markand@malikania.fr>
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef MLK_UI_BUTTON_H
#define MLK_UI_BUTTON_H

#include <core/core.h>

union event;

struct theme;

enum button_state {
	BUTTON_STATE_NONE,
	BUTTON_STATE_PRESSED,
	BUTTON_STATE_ACTIVATED
};

struct button {
	int x;
	int y;
	unsigned int w;
	unsigned int h;
	const char *text;
	enum button_state state;
	const struct theme *theme;
};

CORE_BEGIN_DECLS

int
button_handle(struct button *, const union event *);

void
button_reset(struct button *);

void
button_draw_default(const struct theme *, const struct button *);

void
button_draw(const struct button *);

CORE_END_DECLS

#endif /* !MLK_UI_BUTTON_H */