Nuklear/demo/xcb_cairo/main.c

169 lines
4.6 KiB
C

/* nuklear - v1.32.0 - public domain */
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <limits.h>
#include <math.h>
#include <sys/time.h>
#include <unistd.h>
#include <time.h>
#define NK_INCLUDE_FIXED_TYPES
#define NK_INCLUDE_STANDARD_IO
#define NK_INCLUDE_STANDARD_VARARGS
#define NK_INCLUDE_DEFAULT_ALLOCATOR
#define NK_IMPLEMENTATION
#include "../../nuklear.h"
#define NK_XCB_CAIRO_IMPLEMENTATION
#include "nuklear_xcb.h"
static void die(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fputs("\n", stderr);
exit(EXIT_FAILURE);
}
/* ===============================================================
*
* EXAMPLE
*
* ===============================================================*/
/* This are some code examples to provide a small overview of what can be
* done with this library. To try out an example uncomment the defines */
/*#define INCLUDE_ALL */
/*#define INCLUDE_STYLE */
/*#define INCLUDE_CALCULATOR */
/*#define INCLUDE_OVERVIEW */
/*#define INCLUDE_NODE_EDITOR */
/*#define INCLUDE_CANVAS */
#ifdef INCLUDE_ALL
#define INCLUDE_STYLE
#define INCLUDE_CALCULATOR
#define INCLUDE_OVERVIEW
#define INCLUDE_NODE_EDITOR
#define INCLUDE_CANVAS
#endif
#ifdef INCLUDE_STYLE
#include "../common/style.c"
#endif
#ifdef INCLUDE_CALCULATOR
#include "../common/calculator.c"
#endif
#ifdef INCLUDE_OVERVIEW
#include "../common/overview.c"
#endif
#ifdef INCLUDE_NODE_EDITOR
#include "../common/node_editor.c"
#endif
#ifdef INCLUDE_CANVAS
#include "../common/canvas.c"
#endif
/* ===============================================================
*
* DEMO
*
* ===============================================================*/
int
main(void)
{
struct nk_xcb_context *xcb_ctx;
struct nk_color background = nk_rgb(0, 0, 0);
struct nk_cairo_context *cairo_ctx;
struct nk_user_font *font;
struct nk_context* ctx;
int running = 1;
int events;
xcb_ctx = nk_xcb_init("Nuklear XCB/Cairo", 20, 20, 600, 800);
cairo_ctx = nk_cairo_init(&background, NULL, 0, nk_xcb_create_cairo_surface(xcb_ctx));
/*cairo_ctx = nk_cairo_init(&background, "../../extra_font/DroidSans.ttf", 0, nk_xcb_create_surface(xcb_ctx));*/
font = nk_cairo_default_font(cairo_ctx);
ctx = malloc(sizeof(struct nk_context));
nk_init_default(ctx, font);
#ifdef INCLUDE_STYLE
set_style(ctx, THEME_BLACK);
/*nk_style_push_float(ctx, &ctx->style.window.rounding, 20.0f);*/
/*set_style(ctx, THEME_WHITE);*/
/*set_style(ctx, THEME_RED);*/
/*set_style(ctx, THEME_BLUE);*/
/*set_style(ctx, THEME_DARK);*/
#endif
while (running)
{
/* Events */
events = nk_xcb_handle_event(xcb_ctx, ctx);
if (events & NK_XCB_EVENT_STOP) {
break;
}
if (events & NK_XCB_EVENT_PAINT) {
nk_cairo_damage(cairo_ctx);
}
if (events & NK_XCB_EVENT_RESIZED) {
nk_xcb_resize_cairo_surface(xcb_ctx, nk_cairo_surface(cairo_ctx));
}
/* GUI */
if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
{
enum {EASY, HARD};
static int op = EASY;
static int property = 20;
nk_layout_row_static(ctx, 30, 80, 1);
if (nk_button_label(ctx, "button"))
fprintf(stdout, "button pressed\n");
nk_layout_row_dynamic(ctx, 30, 2);
if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
nk_layout_row_dynamic(ctx, 25, 1);
nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
}
nk_end(ctx);
if (nk_window_is_hidden(ctx, "Demo")) {
break;
}
/* -------------- EXAMPLES ---------------- */
#ifdef INCLUDE_CALCULATOR
calculator(ctx);
#endif
#ifdef INCLUDE_OVERVIEW
overview(ctx);
#endif
#ifdef INCLUDE_NODE_EDITOR
node_editor(ctx);
#endif
#ifdef INCLUDE_CANVAS
canvas(ctx);
#endif
/* ----------------------------------------- */
/* Render */
nk_cairo_render(cairo_ctx, ctx);
nk_xcb_render(xcb_ctx);
nk_clear(ctx);
}
nk_free(ctx);
free(ctx);
nk_cairo_free(cairo_ctx);
nk_xcb_free(xcb_ctx);
return EXIT_SUCCESS;
}