235 lines
7.7 KiB
C
235 lines
7.7 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 <SDL2/SDL.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_RENDERER_IMPLEMENTATION
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#include "../../nuklear.h"
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#include "nuklear_sdl_renderer.h"
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#define WINDOW_WIDTH 1200
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#define WINDOW_HEIGHT 800
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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
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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_Renderer *renderer;
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int running = 1;
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int flags = 0;
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float font_scale = 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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/* SDL setup */
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SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
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SDL_Init(SDL_INIT_VIDEO);
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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_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
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if (win == NULL) {
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SDL_Log("Error SDL_CreateWindow %s", SDL_GetError());
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exit(-1);
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}
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flags |= SDL_RENDERER_ACCELERATED;
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flags |= SDL_RENDERER_PRESENTVSYNC;
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#if 0
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SDL_SetHint(SDL_HINT_RENDER_BATCHING, "1");
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SDL_SetHint(SDL_HINT_RENDER_DRIVER, "software");
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SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl");
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SDL_SetHint(SDL_HINT_RENDER_DRIVER, "software");
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SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengles2");
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#endif
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renderer = SDL_CreateRenderer(win, -1, flags);
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if (renderer == NULL) {
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SDL_Log("Error SDL_CreateRenderer %s", SDL_GetError());
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exit(-1);
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}
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/* scale the renderer output for High-DPI displays */
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{
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int render_w, render_h;
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int window_w, window_h;
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float scale_x, scale_y;
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SDL_GetRendererOutputSize(renderer, &render_w, &render_h);
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SDL_GetWindowSize(win, &window_w, &window_h);
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scale_x = (float)(render_w) / (float)(window_w);
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scale_y = (float)(render_h) / (float)(window_h);
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SDL_RenderSetScale(renderer, scale_x, scale_y);
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font_scale = scale_y;
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}
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/* GUI */
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ctx = nk_sdl_init(win, renderer);
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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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{
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struct nk_font_atlas *atlas;
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struct nk_font_config config = nk_font_config(0);
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struct nk_font *font;
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/* set up the font atlas and add desired font; note that font sizes are
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* multiplied by font_scale to produce better results at higher DPIs */
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nk_sdl_font_stash_begin(&atlas);
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font = nk_font_atlas_add_default(atlas, 13 * font_scale, &config);
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/*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14 * font_scale, &config);*/
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/*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 16 * font_scale, &config);*/
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/*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13 * font_scale, &config);*/
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/*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12 * font_scale, &config);*/
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/*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10 * font_scale, &config);*/
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/*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13 * font_scale, &config);*/
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nk_sdl_font_stash_end();
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/* this hack makes the font appear to be scaled down to the desired
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* size and is only necessary when font_scale > 1 */
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font->handle.height /= font_scale;
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/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
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nk_style_set_font(ctx, &font->handle);
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}
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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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}
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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, 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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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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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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SDL_SetRenderDrawColor(renderer, bg.r * 255, bg.g * 255, bg.b * 255, bg.a * 255);
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SDL_RenderClear(renderer);
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nk_sdl_render(NK_ANTI_ALIASING_ON);
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SDL_RenderPresent(renderer);
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}
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cleanup:
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nk_sdl_shutdown();
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SDL_DestroyRenderer(renderer);
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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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