/* nuklear - 1.32.0 - public domain */ #include #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_GLFW_GL3_IMPLEMENTATION #define NK_KEYSTATE_BASED_INPUT #include "../../nuklear.h" #include "nuklear_glfw_gl3.h" #define WINDOW_WIDTH 1200 #define WINDOW_HEIGHT 800 #define MAX_VERTEX_BUFFER 512 * 1024 #define MAX_ELEMENT_BUFFER 128 * 1024 /* =============================================================== * * 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 * * ===============================================================*/ static void error_callback(int e, const char *d) {printf("Error %d: %s\n", e, d);} int main(void) { /* Platform */ struct nk_glfw glfw = {0}; static GLFWwindow *win; int width = 0, height = 0; struct nk_context *ctx; struct nk_colorf bg; /* GLFW */ glfwSetErrorCallback(error_callback); if (!glfwInit()) { fprintf(stdout, "[GFLW] failed to init!\n"); exit(1); } glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); #ifdef __APPLE__ glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE); #endif win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL); glfwMakeContextCurrent(win); glfwGetWindowSize(win, &width, &height); /* OpenGL */ glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT); glewExperimental = 1; if (glewInit() != GLEW_OK) { fprintf(stderr, "Failed to setup GLEW\n"); exit(1); } ctx = nk_glfw3_init(&glfw, win, NK_GLFW3_INSTALL_CALLBACKS); /* 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; nk_glfw3_font_stash_begin(&glfw, &atlas); /*struct nk_font *droid = nk_font_atlas_add_from_file(atlas, "../../../extra_font/DroidSans.ttf", 14, 0);*/ /*struct nk_font *roboto = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Roboto-Regular.ttf", 14, 0);*/ /*struct nk_font *future = nk_font_atlas_add_from_file(atlas, "../../../extra_font/kenvector_future_thin.ttf", 13, 0);*/ /*struct nk_font *clean = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyClean.ttf", 12, 0);*/ /*struct nk_font *tiny = nk_font_atlas_add_from_file(atlas, "../../../extra_font/ProggyTiny.ttf", 10, 0);*/ /*struct nk_font *cousine = nk_font_atlas_add_from_file(atlas, "../../../extra_font/Cousine-Regular.ttf", 13, 0);*/ nk_glfw3_font_stash_end(&glfw); /*nk_style_load_all_cursors(ctx, atlas->cursors);*/ /*nk_style_set_font(ctx, &droid->handle);*/} bg.r = 0.10f, bg.g = 0.18f, bg.b = 0.24f, bg.a = 1.0f; while (!glfwWindowShouldClose(win)) { /* Input */ glfwPollEvents(); nk_glfw3_new_frame(&glfw); /* 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 /* ----------------------------------------- */ /* Draw */ glfwGetWindowSize(win, &width, &height); glViewport(0, 0, width, height); glClear(GL_COLOR_BUFFER_BIT); glClearColor(bg.r, bg.g, bg.b, bg.a); /* IMPORTANT: `nk_glfw_render` modifies some global OpenGL state * with blending, scissor, face culling, depth test and viewport and * defaults everything back into a default state. * Make sure to either a.) save and restore or b.) reset your own state after * rendering the UI. */ nk_glfw3_render(&glfw, NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER); glfwSwapBuffers(win); } nk_glfw3_shutdown(&glfw); glfwTerminate(); return 0; }