/* nuklear - 1.32.0 - public domain */ #include #include #include #include #include #include #include #include #include #include #define NK_INCLUDE_FIXED_TYPES #define NK_INCLUDE_STANDARD_IO #define NK_INCLUDE_STANDARD_VARARGS #define NK_INCLUDE_DEFAULT_ALLOCATOR #define NK_INCLUDE_VERTEX_BUFFER_OUTPUT #define NK_INCLUDE_FONT_BAKING #define NK_INCLUDE_DEFAULT_FONT #define NK_IMPLEMENTATION #define NK_SDL_RENDERER_IMPLEMENTATION #include "../../nuklear.h" #include "nuklear_sdl_renderer.h" #define WINDOW_WIDTH 1200 #define WINDOW_HEIGHT 800 /* =============================================================== * * 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_CANVAS */ /*#define INCLUDE_OVERVIEW */ /*#define INCLUDE_NODE_EDITOR */ #ifdef INCLUDE_ALL #define INCLUDE_STYLE #define INCLUDE_CALCULATOR #define INCLUDE_CANVAS #define INCLUDE_OVERVIEW #define INCLUDE_NODE_EDITOR #endif #ifdef INCLUDE_STYLE #include "../../demo/common/style.c" #endif #ifdef INCLUDE_CALCULATOR #include "../../demo/common/calculator.c" #endif #ifdef INCLUDE_CANVAS #include "../../demo/common/canvas.c" #endif #ifdef INCLUDE_OVERVIEW #include "../../demo/common/overview.c" #endif #ifdef INCLUDE_NODE_EDITOR #include "../../demo/common/node_editor.c" #endif /* =============================================================== * * DEMO * * ===============================================================*/ int main(int argc, char *argv[]) { /* Platform */ SDL_Window *win; SDL_Renderer *renderer; int running = 1; int flags = 0; float font_scale = 1; /* GUI */ struct nk_context *ctx; struct nk_colorf bg; /* SDL setup */ SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0"); SDL_Init(SDL_INIT_VIDEO); win = SDL_CreateWindow("Demo", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI); if (win == NULL) { SDL_Log("Error SDL_CreateWindow %s", SDL_GetError()); exit(-1); } flags |= SDL_RENDERER_ACCELERATED; flags |= SDL_RENDERER_PRESENTVSYNC; #if 0 SDL_SetHint(SDL_HINT_RENDER_BATCHING, "1"); SDL_SetHint(SDL_HINT_RENDER_DRIVER, "software"); SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengl"); SDL_SetHint(SDL_HINT_RENDER_DRIVER, "software"); SDL_SetHint(SDL_HINT_RENDER_DRIVER, "opengles2"); #endif renderer = SDL_CreateRenderer(win, -1, flags); if (renderer == NULL) { SDL_Log("Error SDL_CreateRenderer %s", SDL_GetError()); exit(-1); } /* scale the renderer output for High-DPI displays */ { int render_w, render_h; int window_w, window_h; float scale_x, scale_y; SDL_GetRendererOutputSize(renderer, &render_w, &render_h); SDL_GetWindowSize(win, &window_w, &window_h); scale_x = (float)(render_w) / (float)(window_w); scale_y = (float)(render_h) / (float)(window_h); SDL_RenderSetScale(renderer, scale_x, scale_y); font_scale = scale_y; } /* GUI */ ctx = nk_sdl_init(win, renderer); /* Load Fonts: if none of these are loaded a default font will be used */ /* Load Cursor: if you uncomment cursor loading please hide the cursor */ { struct nk_font_atlas *atlas; struct nk_font_config config = nk_font_config(0); struct nk_font *font; /* set up the font atlas and add desired font; note that font sizes are * multiplied by font_scale to produce better results at higher DPIs */ nk_sdl_font_stash_begin(&atlas); font = nk_font_atlas_add_default(atlas, 13 * font_scale, &config); /*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14 * font_scale, &config);*/ /*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 16 * font_scale, &config);*/ /*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13 * font_scale, &config);*/ /*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12 * font_scale, &config);*/ /*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10 * font_scale, &config);*/ /*font = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13 * font_scale, &config);*/ nk_sdl_font_stash_end(); /* this hack makes the font appear to be scaled down to the desired * size and is only necessary when font_scale > 1 */ font->handle.height /= font_scale; /*nk_style_load_all_cursors(ctx, atlas->cursors);*/ nk_style_set_font(ctx, &font->handle); } bg.r = 0.10f, bg.g = 0.18f, bg.b = 0.24f, bg.a = 1.0f; while (running) { /* Input */ SDL_Event evt; nk_input_begin(ctx); while (SDL_PollEvent(&evt)) { if (evt.type == SDL_QUIT) goto cleanup; nk_sdl_handle_event(&evt); } nk_sdl_handle_grab(); /* optional grabbing behavior */ nk_input_end(ctx); /* GUI */ if (nk_begin(ctx, "Demo", nk_rect(50, 50, 230, 250), NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE| 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_layout_row_dynamic(ctx, 20, 1); nk_label(ctx, "background:", NK_TEXT_LEFT); nk_layout_row_dynamic(ctx, 25, 1); if (nk_combo_begin_color(ctx, nk_rgb_cf(bg), nk_vec2(nk_widget_width(ctx),400))) { nk_layout_row_dynamic(ctx, 120, 1); bg = nk_color_picker(ctx, bg, NK_RGBA); nk_layout_row_dynamic(ctx, 25, 1); bg.r = nk_propertyf(ctx, "#R:", 0, bg.r, 1.0f, 0.01f,0.005f); bg.g = nk_propertyf(ctx, "#G:", 0, bg.g, 1.0f, 0.01f,0.005f); bg.b = nk_propertyf(ctx, "#B:", 0, bg.b, 1.0f, 0.01f,0.005f); bg.a = nk_propertyf(ctx, "#A:", 0, bg.a, 1.0f, 0.01f,0.005f); nk_combo_end(ctx); } } nk_end(ctx); /* -------------- EXAMPLES ---------------- */ #ifdef INCLUDE_CALCULATOR calculator(ctx); #endif #ifdef INCLUDE_CANVAS canvas(ctx); #endif #ifdef INCLUDE_OVERVIEW overview(ctx); #endif #ifdef INCLUDE_NODE_EDITOR node_editor(ctx); #endif /* ----------------------------------------- */ SDL_SetRenderDrawColor(renderer, bg.r * 255, bg.g * 255, bg.b * 255, bg.a * 255); SDL_RenderClear(renderer); nk_sdl_render(NK_ANTI_ALIASING_ON); SDL_RenderPresent(renderer); } cleanup: nk_sdl_shutdown(); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(win); SDL_Quit(); return 0; }