225 lines
7.6 KiB
C
225 lines
7.6 KiB
C
/* nuklear - 1.32.0 - public domain */
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdarg.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include <limits.h>
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#include <time.h>
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#include <GL/glew.h>
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_opengl.h>
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#define NK_INCLUDE_FIXED_TYPES
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#define NK_INCLUDE_STANDARD_IO
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#define NK_INCLUDE_STANDARD_VARARGS
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#define NK_INCLUDE_DEFAULT_ALLOCATOR
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#define NK_INCLUDE_VERTEX_BUFFER_OUTPUT
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#define NK_INCLUDE_FONT_BAKING
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#define NK_INCLUDE_DEFAULT_FONT
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#define NK_IMPLEMENTATION
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#define NK_SDL_GL3_IMPLEMENTATION
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#include "../../nuklear.h"
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#include "nuklear_sdl_gl3.h"
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#define WINDOW_WIDTH 1200
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#define WINDOW_HEIGHT 800
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#define MAX_VERTEX_MEMORY 512 * 1024
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#define MAX_ELEMENT_MEMORY 128 * 1024
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/* ===============================================================
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*
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* EXAMPLE
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*
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* ===============================================================*/
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/* This are some code examples to provide a small overview of what can be
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* done with this library. To try out an example uncomment the defines */
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/*#define INCLUDE_ALL */
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/*#define INCLUDE_STYLE */
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/*#define INCLUDE_CALCULATOR */
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/*#define INCLUDE_CANVAS */
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/*#define INCLUDE_OVERVIEW */
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/*#define INCLUDE_NODE_EDITOR */
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#ifdef INCLUDE_ALL
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#define INCLUDE_STYLE
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#define INCLUDE_CALCULATOR
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#define INCLUDE_CANVAS
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#define INCLUDE_OVERVIEW
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#define INCLUDE_NODE_EDITOR
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#endif
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#ifdef INCLUDE_STYLE
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#include "../../demo/common/style.c"
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#endif
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#ifdef INCLUDE_CALCULATOR
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#include "../../demo/common/calculator.c"
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#endif
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#ifdef INCLUDE_CANVAS
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#include "../../demo/common/canvas.c"
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#endif
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#ifdef INCLUDE_OVERVIEW
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#include "../../demo/common/overview.c"
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#endif
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#ifdef INCLUDE_NODE_EDITOR
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#include "../../demo/common/node_editor.c"
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#endif
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/* ===============================================================
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*
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* DEMO
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*
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* ===============================================================*/
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int main(int argc, char *argv[])
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{
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/* Platform */
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SDL_Window *win;
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SDL_GLContext glContext;
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int win_width, win_height;
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int running = 1;
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/* GUI */
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struct nk_context *ctx;
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struct nk_colorf bg;
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NK_UNUSED(argc);
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NK_UNUSED(argv);
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/* SDL setup */
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SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
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SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_EVENTS);
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SDL_GL_SetAttribute (SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
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SDL_GL_SetAttribute (SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
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win = SDL_CreateWindow("Demo",
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SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
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WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_OPENGL|SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
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glContext = SDL_GL_CreateContext(win);
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SDL_GetWindowSize(win, &win_width, &win_height);
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/* OpenGL setup */
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glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
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glewExperimental = 1;
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if (glewInit() != GLEW_OK) {
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fprintf(stderr, "Failed to setup GLEW\n");
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exit(1);
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}
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ctx = nk_sdl_init(win);
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/* Load Fonts: if none of these are loaded a default font will be used */
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/* Load Cursor: if you uncomment cursor loading please hide the cursor */
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{struct nk_font_atlas *atlas;
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nk_sdl_font_stash_begin(&atlas);
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/*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/
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/*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 16, 0);*/
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/*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/
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/*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/
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/*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/
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/*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/
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nk_sdl_font_stash_end();
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/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
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/*nk_style_set_font(ctx, &roboto->handle);*/}
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/* style.c */
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#ifdef INCLUDE_STYLE
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/* ease regression testing during Nuklear release process; not needed for anything else */
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#ifdef STYLE_WHITE
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set_style(ctx, THEME_WHITE);
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#elif defined(STYLE_RED)
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set_style(ctx, THEME_RED);
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#elif defined(STYLE_BLUE)
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set_style(ctx, THEME_BLUE);
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#elif defined(STYLE_DARK)
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set_style(ctx, THEME_DARK);
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#endif
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#endif
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bg.r = 0.10f, bg.g = 0.18f, bg.b = 0.24f, bg.a = 1.0f;
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while (running)
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{
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/* Input */
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SDL_Event evt;
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nk_input_begin(ctx);
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while (SDL_PollEvent(&evt)) {
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if (evt.type == SDL_QUIT) goto cleanup;
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nk_sdl_handle_event(&evt);
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} nk_input_end(ctx);
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/* GUI */
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if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
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NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
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{
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enum {EASY, HARD};
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static int op = EASY;
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static int property = 20;
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nk_layout_row_static(ctx, 30, 80, 1);
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if (nk_button_label(ctx, "button"))
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printf("button pressed!\n");
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nk_layout_row_dynamic(ctx, 30, 2);
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if (nk_option_label(ctx, "easy", op == EASY)) op = EASY;
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if (nk_option_label(ctx, "hard", op == HARD)) op = HARD;
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nk_layout_row_dynamic(ctx, 22, 1);
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nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
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nk_layout_row_dynamic(ctx, 20, 1);
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nk_label(ctx, "background:", NK_TEXT_LEFT);
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nk_layout_row_dynamic(ctx, 25, 1);
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if (nk_combo_begin_color(ctx, nk_rgb_cf(bg), nk_vec2(nk_widget_width(ctx),400))) {
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nk_layout_row_dynamic(ctx, 120, 1);
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bg = nk_color_picker(ctx, bg, NK_RGBA);
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nk_layout_row_dynamic(ctx, 25, 1);
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bg.r = nk_propertyf(ctx, "#R:", 0, bg.r, 1.0f, 0.01f,0.005f);
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bg.g = nk_propertyf(ctx, "#G:", 0, bg.g, 1.0f, 0.01f,0.005f);
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bg.b = nk_propertyf(ctx, "#B:", 0, bg.b, 1.0f, 0.01f,0.005f);
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bg.a = nk_propertyf(ctx, "#A:", 0, bg.a, 1.0f, 0.01f,0.005f);
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nk_combo_end(ctx);
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}
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}
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nk_end(ctx);
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/* -------------- EXAMPLES ---------------- */
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#ifdef INCLUDE_CALCULATOR
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calculator(ctx);
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#endif
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#ifdef INCLUDE_CANVAS
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canvas(ctx);
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#endif
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#ifdef INCLUDE_OVERVIEW
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overview(ctx);
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#endif
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#ifdef INCLUDE_NODE_EDITOR
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node_editor(ctx);
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#endif
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/* ----------------------------------------- */
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/* Draw */
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SDL_GetWindowSize(win, &win_width, &win_height);
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glViewport(0, 0, win_width, win_height);
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glClear(GL_COLOR_BUFFER_BIT);
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glClearColor(bg.r, bg.g, bg.b, bg.a);
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/* IMPORTANT: `nk_sdl_render` modifies some global OpenGL state
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* with blending, scissor, face culling, depth test and viewport and
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* defaults everything back into a default state.
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* Make sure to either a.) save and restore or b.) reset your own state after
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* rendering the UI. */
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nk_sdl_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_MEMORY, MAX_ELEMENT_MEMORY);
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SDL_GL_SwapWindow(win);
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}
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cleanup:
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nk_sdl_shutdown();
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SDL_GL_DeleteContext(glContext);
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SDL_DestroyWindow(win);
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SDL_Quit();
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return 0;
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}
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