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-rw-r--r--nuklear/demo/sdl_opengl3/main.c195
1 files changed, 195 insertions, 0 deletions
diff --git a/nuklear/demo/sdl_opengl3/main.c b/nuklear/demo/sdl_opengl3/main.c
new file mode 100644
index 0000000..aee4f82
--- /dev/null
+++ b/nuklear/demo/sdl_opengl3/main.c
@@ -0,0 +1,195 @@
+/* nuklear - v1.17 - public domain */
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <string.h>
+#include <math.h>
+#include <assert.h>
+#include <math.h>
+#include <limits.h>
+#include <time.h>
+
+#include <GL/glew.h>
+#include <SDL2/SDL.h>
+#include <SDL2/SDL_opengl.h>
+
+#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_GL3_IMPLEMENTATION
+#include "../../nuklear.h"
+#include "nuklear_sdl_gl3.h"
+
+#define WINDOW_WIDTH 800
+#define WINDOW_HEIGHT 600
+
+#define MAX_VERTEX_MEMORY 512 * 1024
+#define MAX_ELEMENT_MEMORY 128 * 1024
+
+#define UNUSED(a) (void)a
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#define MAX(a,b) ((a) < (b) ? (b) : (a))
+#define LEN(a) (sizeof(a)/sizeof(a)[0])
+
+/* ===============================================================
+ *
+ * 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 include
+ * and the corresponding function. */
+/*#include "../style.c"*/
+/*#include "../calculator.c"*/
+/*#include "../overview.c"*/
+/*#include "../node_editor.c"*/
+
+/* ===============================================================
+ *
+ * DEMO
+ *
+ * ===============================================================*/
+int
+main(int argc, char* argv[])
+{
+ /* Platform */
+ SDL_Window *win;
+ SDL_GLContext glContext;
+ struct nk_color background;
+ int win_width, win_height;
+ int running = 1;
+
+ /* GUI */
+ struct nk_context *ctx;
+
+ /* SDL setup */
+ SDL_SetHint(SDL_HINT_VIDEO_HIGHDPI_DISABLED, "0");
+ SDL_Init(SDL_INIT_VIDEO|SDL_INIT_TIMER|SDL_INIT_EVENTS);
+ SDL_GL_SetAttribute (SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
+ SDL_GL_SetAttribute (SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
+ SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
+ SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
+ SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+ win = SDL_CreateWindow("Demo",
+ SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
+ WINDOW_WIDTH, WINDOW_HEIGHT, SDL_WINDOW_OPENGL|SDL_WINDOW_SHOWN|SDL_WINDOW_ALLOW_HIGHDPI);
+ glContext = SDL_GL_CreateContext(win);
+ SDL_GetWindowSize(win, &win_width, &win_height);
+
+ /* OpenGL setup */
+ glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
+ glewExperimental = 1;
+ if (glewInit() != GLEW_OK) {
+ fprintf(stderr, "Failed to setup GLEW\n");
+ exit(1);
+ }
+
+ ctx = nk_sdl_init(win);
+ /* 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_sdl_font_stash_begin(&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", 16, 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_sdl_font_stash_end();
+ /*nk_style_load_all_cursors(ctx, atlas->cursors);*/
+ /*nk_style_set_font(ctx, &roboto->handle)*/;}
+
+ /* style.c */
+ /*set_style(ctx, THEME_WHITE);*/
+ /*set_style(ctx, THEME_RED);*/
+ /*set_style(ctx, THEME_BLUE);*/
+ /*set_style(ctx, THEME_DARK);*/
+
+ background = nk_rgb(28,48,62);
+ 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_input_end(ctx);
+
+
+ /* GUI */
+ if (nk_begin(ctx, "Demo", nk_rect(50, 50, 200, 200),
+ NK_WINDOW_BORDER|NK_WINDOW_MOVABLE|NK_WINDOW_SCALABLE|
+ NK_WINDOW_CLOSABLE|NK_WINDOW_MINIMIZABLE|NK_WINDOW_TITLE))
+ {
+ nk_menubar_begin(ctx);
+ nk_layout_row_begin(ctx, NK_STATIC, 25, 2);
+ nk_layout_row_push(ctx, 45);
+ if (nk_menu_begin_label(ctx, "FILE", NK_TEXT_LEFT, nk_vec2(120, 200))) {
+ nk_layout_row_dynamic(ctx, 30, 1);
+ nk_menu_item_label(ctx, "OPEN", NK_TEXT_LEFT);
+ nk_menu_item_label(ctx, "CLOSE", NK_TEXT_LEFT);
+ nk_menu_end(ctx);
+ }
+ nk_layout_row_push(ctx, 45);
+ if (nk_menu_begin_label(ctx, "EDIT", NK_TEXT_LEFT, nk_vec2(120, 200))) {
+ nk_layout_row_dynamic(ctx, 30, 1);
+ nk_menu_item_label(ctx, "COPY", NK_TEXT_LEFT);
+ nk_menu_item_label(ctx, "CUT", NK_TEXT_LEFT);
+ nk_menu_item_label(ctx, "PASTE", NK_TEXT_LEFT);
+ nk_menu_end(ctx);
+ }
+ nk_layout_row_end(ctx);
+ nk_menubar_end(ctx);
+
+ 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_end(ctx);
+
+ /* -------------- EXAMPLES ---------------- */
+ /*calculator(ctx);*/
+ /*overview(ctx);*/
+ /*node_editor(ctx);*/
+ /* ----------------------------------------- */
+
+ /* Draw */
+ {float bg[4];
+ nk_color_fv(bg, background);
+ SDL_GetWindowSize(win, &win_width, &win_height);
+ glViewport(0, 0, win_width, win_height);
+ glClear(GL_COLOR_BUFFER_BIT);
+ glClearColor(bg[0], bg[1], bg[2], bg[3]);
+ /* IMPORTANT: `nk_sdl_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_sdl_render(NK_ANTI_ALIASING_ON, MAX_VERTEX_MEMORY, MAX_ELEMENT_MEMORY);
+ SDL_GL_SwapWindow(win);}
+ }
+
+cleanup:
+ nk_sdl_shutdown();
+ SDL_GL_DeleteContext(glContext);
+ SDL_DestroyWindow(win);
+ SDL_Quit();
+ return 0;
+}
+