Mercurial > molko
view examples/example-ui/button-glower.c @ 507:d49a05e7a5b5
ui: separate delegate/style
Now UI elements do have different styling properties:
- _delegate: functions used to update, draw or perform specific actions on the
UI element.
- _style: basic properties that the delegate should support if possible.
author | David Demelier <markand@malikania.fr> |
---|---|
date | Thu, 02 Mar 2023 21:36:43 +0100 |
parents | examples/example-ui/button-style-glow.h@e205625015ba |
children | 7e7c6786d21e |
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/* * button-style-glow.c -- example of glowing button * * Copyright (c) 2020-2023 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. */ #include <assert.h> #include "button-glower.h" static void update(struct mlk_button_delegate *delegate, struct mlk_button *button, unsigned int ticks) { (void)button; struct button_glower *glower = delegate->data; mlk_glower_update(&glower->glower, ticks); glower->style.bg_color = glower->glower.color; } void button_glower_init(struct button_glower *glower, struct mlk_button *button) { assert(glower); glower->style.bg_color = glower->glower.start; glower->delegate.data = glower; glower->delegate.update = update; /* Link this style and delegate to the button. */ button->style = &glower->style; button->delegate = &glower->delegate; mlk_glower_init(&glower->glower); }