182 lines
6.5 KiB
C
182 lines
6.5 KiB
C
/* nuklear - v1.00 - 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 <math.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 <GLFW/glfw3.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_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_GLFW_GL3_IMPLEMENTATION
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#include "../../nuklear.h"
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#include "nuklear_glfw_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_BUFFER 512 * 1024
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#define MAX_ELEMENT_BUFFER 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 include
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* and the corresponding function. */
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/*#include "../style.c"*/
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/*#include "../calculator.c"*/
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/*#include "../overview.c"*/
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/*#include "../node_editor.c"*/
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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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static void error_callback(int e, const char *d)
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{printf("Error %d: %s\n", e, d);}
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int main(void)
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{
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/* Platform */
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static GLFWwindow *win;
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int width = 0, height = 0;
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struct nk_context *ctx;
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struct nk_color background;
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/* GLFW */
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glfwSetErrorCallback(error_callback);
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if (!glfwInit()) {
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fprintf(stdout, "[GFLW] failed to init!\n");
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exit(1);
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}
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
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glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
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#ifdef __APPLE__
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glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
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#endif
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win = glfwCreateWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Demo", NULL, NULL);
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glfwMakeContextCurrent(win);
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glfwGetWindowSize(win, &width, &height);
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/* OpenGL */
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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_glfw3_init(win, NK_GLFW3_INSTALL_CALLBACKS);
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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_glfw3_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", 14, 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_glfw3_font_stash_end();
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/*nk_style_load_all_cursors(ctx, atlas->cursors);*/
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/*nk_style_set_font(ctx, &droid->handle);*/}
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/* style.c */
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/*set_style(ctx, THEME_WHITE);*/
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/*set_style(ctx, THEME_RED);*/
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/*set_style(ctx, THEME_BLUE);*/
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/*set_style(ctx, THEME_DARK);*/
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background = nk_rgb(28,48,62);
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while (!glfwWindowShouldClose(win))
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{
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/* Input */
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glfwPollEvents();
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nk_glfw3_new_frame();
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/* GUI */
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{struct nk_panel layout;
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if (nk_begin(ctx, &layout, "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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{struct nk_panel combo;
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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, &combo, background, 400)) {
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nk_layout_row_dynamic(ctx, 120, 1);
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background = nk_color_picker(ctx, background, NK_RGBA);
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nk_layout_row_dynamic(ctx, 25, 1);
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background.r = (nk_byte)nk_propertyi(ctx, "#R:", 0, background.r, 255, 1,1);
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background.g = (nk_byte)nk_propertyi(ctx, "#G:", 0, background.g, 255, 1,1);
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background.b = (nk_byte)nk_propertyi(ctx, "#B:", 0, background.b, 255, 1,1);
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background.a = (nk_byte)nk_propertyi(ctx, "#A:", 0, background.a, 255, 1,1);
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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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/*calculator(ctx);*/
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/*overview(ctx);*/
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/*node_editor(ctx);*/
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/* ----------------------------------------- */
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/* Draw */
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{float bg[4];
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nk_color_fv(bg, background);
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glfwGetWindowSize(win, &width, &height);
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glViewport(0, 0, width, 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_glfw_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_glfw3_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_BUFFER, MAX_ELEMENT_BUFFER);
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glfwSwapBuffers(win);}
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}
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nk_glfw3_shutdown();
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glfwTerminate();
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return 0;
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}
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