Mercurial > molko
view examples/example-message.c @ 149:a43e79d489ea
ui: allow custom position of labels
author | David Demelier <markand@malikania.fr> |
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date | Thu, 15 Oct 2020 10:45:40 +0200 |
parents | c577c15df07f |
children | c3a40062acc2 |
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/* * example-message.c -- show how to use messages * * Copyright (c) 2020 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 <string.h> #include <core/clock.h> #include <core/event.h> #include <core/painter.h> #include <core/panic.h> #include <core/sys.h> #include <core/util.h> #include <core/window.h> #include <ui/frame.h> #include <ui/theme.h> #include <rpg/message.h> #define W (1280) #define H (720) #define MW (W * 0.75) #define MH (H * 0.125) #define MX ((W / 2) - (MW / 2)) #define MY (100) static void init(void) { if (!sys_init() || !window_init("Example - Message", W, H) || !theme_init()) panic(); } static void quit(void) { theme_finish(); window_finish(); sys_finish(); } static void run(struct message *msg) { struct clock clock = {0}; message_start(msg); clock_start(&clock); while (msg->state) { union event ev; unsigned int elapsed = clock_elapsed(&clock); clock_start(&clock); while (event_poll(&ev)) { switch (ev.type) { case EVENT_QUIT: msg->state = MESSAGE_STATE_NONE; break; default: message_handle(msg, &ev); break; } } message_update(msg, elapsed); painter_set_color(0xffffffff); painter_clear(); message_draw(msg); painter_present(); if ((elapsed = clock_elapsed(&clock)) < 20) delay(20 - elapsed); } } static void my_draw_frame(struct theme *th, const struct frame *f) { (void)th; painter_set_color(0xff0000ff); painter_draw_rectangle(f->x, f->y, f->w, f->h); } static void basic(void) { struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .text = { "This is a basic message.", "You need to press <Enter> to close it." }, }; run(&msg); } static void automatic(void) { struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .timeout = MESSAGE_TIMEOUT_DEFAULT, .text = { "This is a an automatic message.", "It will disappear in a few seconds.", "You can still press <Enter> to close it quicker." }, .flags = MESSAGE_FLAGS_AUTOMATIC }; run(&msg); } static void fadein(void) { struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .delay = MESSAGE_DELAY_DEFAULT, .text = { "This message will fade in." }, .flags = MESSAGE_FLAGS_FADEIN }; run(&msg); } static void fadeout(void) { struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .delay = MESSAGE_DELAY_DEFAULT, .text = { "This message will fade out." }, .flags = MESSAGE_FLAGS_FADEOUT }; run(&msg); } static void fade(void) { struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .delay = MESSAGE_DELAY_DEFAULT, .text = { "This message will fade in and out." }, .flags = MESSAGE_FLAGS_FADEIN | MESSAGE_FLAGS_FADEOUT }; run(&msg); } static void question(void) { struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .text = { "Okay, I've understood.", "Nevermind, I'll do it again." }, .flags = MESSAGE_FLAGS_QUESTION }; run(&msg); } static void smallbottom(void) { const unsigned int w = window.w / 4; const unsigned int h = 50; const int x = (window.w / 2) - (w / 2); const int y = (window.h - h - 10); struct message msg = { .x = x, .y = y, .w = w, .h = h, .delay = MESSAGE_DELAY_DEFAULT, .flags = MESSAGE_FLAGS_FADEIN | MESSAGE_FLAGS_FADEOUT, .text = { "This one is small here." } }; run(&msg); } static void custom(void) { struct theme theme; struct message msg = { .x = MX, .y = MY, .w = MW, .h = MH, .text = { "This one will destroy your eyes.", "Because it use a terrible custom theme." }, .theme = &theme }; /* Borrow default theme and change its frame drawing. */ memcpy(&theme, theme_default(), sizeof (theme)); theme.draw_frame = my_draw_frame; theme.colors[THEME_COLOR_NORMAL] = 0x0000ffff; run(&msg); } int main(int argc, char **argv) { (void)argc; (void)argv; init(); basic(); fadein(); fadeout(); fade(); automatic(); question(); smallbottom(); custom(); quit(); }