226 lines
7.4 KiB
C
226 lines
7.4 KiB
C
/* nuklear - 1.40.8 - 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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#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_GLES2_IMPLEMENTATION
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#include "../../nuklear.h"
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#include "nuklear_sdl_gles2.h"
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#define WINDOW_WIDTH 800
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#define WINDOW_HEIGHT 600
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#define MAX_VERTEX_MEMORY 512 * 1024
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#define MAX_ELEMENT_MEMORY 128 * 1024
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#define UNUSED(a) (void)a
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) < (b) ? (b) : (a))
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#define LEN(a) (sizeof(a)/sizeof(a)[0])
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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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/* Platform */
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SDL_Window *win;
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int running = nk_true;
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static void
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MainLoop(void* loopArg){
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struct nk_context *ctx = (struct nk_context *)loopArg;
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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) running = nk_false;
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nk_sdl_handle_event(&evt);
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}
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nk_sdl_handle_grab(); /* optional grabbing behavior */
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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, 200, 200),
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NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
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NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
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{
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nk_menubar_begin(ctx);
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nk_layout_row_begin(ctx, NK_STATIC, 25, 2);
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nk_layout_row_push(ctx, 45);
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if (nk_menu_begin_label(ctx, "FILE", NK_TEXT_LEFT, nk_vec2(120, 200))) {
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nk_layout_row_dynamic(ctx, 30, 1);
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nk_menu_item_label(ctx, "OPEN", NK_TEXT_LEFT);
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nk_menu_item_label(ctx, "CLOSE", NK_TEXT_LEFT);
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nk_menu_end(ctx);
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}
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nk_layout_row_push(ctx, 45);
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if (nk_menu_begin_label(ctx, "EDIT", NK_TEXT_LEFT, nk_vec2(120, 200))) {
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nk_layout_row_dynamic(ctx, 30, 1);
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nk_menu_item_label(ctx, "COPY", NK_TEXT_LEFT);
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nk_menu_item_label(ctx, "CUT", NK_TEXT_LEFT);
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nk_menu_item_label(ctx, "PASTE", NK_TEXT_LEFT);
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nk_menu_end(ctx);
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}
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nk_layout_row_end(ctx);
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nk_menubar_end(ctx);
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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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fprintf(stdout, "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, 25, 1);
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nk_property_int(ctx, "Compression:", 0, &property, 100, 10, 1);
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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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{float bg[4];
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int win_width, win_height;
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nk_color_fv(bg, nk_rgb(28,48,62));
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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[0], bg[1], bg[2], bg[3]);
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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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int main(int argc, char* argv[])
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{
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/* GUI */
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struct nk_context *ctx;
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SDL_GLContext glContext;
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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); // - do NOT init SDL on GL ES 2 */
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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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/* OpenGL setup */
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glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
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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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#if defined(__EMSCRIPTEN__)
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#include <emscripten.h>
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emscripten_set_main_loop_arg(MainLoop, (void*)ctx, 0, nk_true);
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#else
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while (running) MainLoop((void*)ctx);
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#endif
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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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