static void nk_menu_init_device(nk_menu_handle_t *nk) { char buf[PATH_MAX_LENGTH] = {0}; fill_pathname_join(buf, nk->assets_directory, "DroidSans.ttf", sizeof(buf)); nk_alloc.userdata.ptr = NULL; nk_alloc.alloc = nk_common_mem_alloc; nk_alloc.free = nk_common_mem_free; nk_buffer_init(&device.cmds, &nk_alloc, 1024); const void *image; int w, h; nk_font_atlas_init_default(&atlas); nk_font_atlas_begin(&atlas); font = nk_font_atlas_add_default(&atlas, 13.0f, NULL); image = nk_font_atlas_bake(&atlas, &w, &h, NK_FONT_ATLAS_RGBA32); device_upload_atlas(&device, image, w, h); nk_font_atlas_end(&atlas, nk_handle_id((int)device.font_tex), &device.null); nk_init_default(&nk->ctx, &font->handle); //nk_init(&nk->ctx, &nk_alloc, &usrfnt); nk_common_device_init(&device); fill_pathname_join(buf, nk->assets_directory, "folder.png", sizeof(buf)); nk->icons.folder = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "speaker.png", sizeof(buf)); nk->icons.speaker = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "gamepad.png", sizeof(buf)); nk->icons.gamepad = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "monitor.png", sizeof(buf)); nk->icons.monitor = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "settings.png", sizeof(buf)); nk->icons.settings = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "invader.png", sizeof(buf)); nk->icons.invader = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "page_on.png", sizeof(buf)); nk->icons.page_on = nk_common_image_load(buf); fill_pathname_join(buf, nk->assets_directory, "page_off.png", sizeof(buf)); nk->icons.page_off = nk_common_image_load(buf); nk->size_changed = true; nk_common_set_style(&nk->ctx, THEME_BLUE); }
NK_API void nk_headless_init(struct nk_context* ctx, int w, int h, int max_char_width, int font_height) { struct nk_user_font font; headless_font = (nk_headless_Font*)calloc(1, sizeof(nk_headless_Font)); headless_font->width = max_char_width; headless_font->height = font_height; if (!headless_font) printf("Can't allocate memory for font\n"); font.userdata = nk_handle_ptr(headless_font); font.height = (float)headless_font->height; font.width = nk_headless_get_text_width; // screen_surface.w = w; // screen_surface.h = h; // headless.screen_surface = &screen_surface; nk_init_default(ctx, &font); ctx->clip.copy = nk_headless_clipbard_copy; ctx->clip.paste = nk_headless_clipbard_paste; ctx->clip.userdata = nk_handle_ptr(0); }
int main(int argc, char *argv[]) { /* register callbacks */ mpx_register_vc(&this_vc); /* GUI */ static struct nk_context ctx; static struct nk_canvas canvas; uint32_t width = 0, height = 0; static struct nk_user_font font; font.userdata.ptr = &width; font.height = font_vga_8x16.height; font.width = your_text_width_calculation; nk_init_default(&ctx, &font); width = this_vc.fb->var.xres; height = this_vc.fb->var.yres; /* Draw */ while (1) { /* what to draw */ canvas_begin(&ctx, &canvas, 0, 0, 0, width, height, nk_rgb(100,100,100)); { canvas.painter->use_clipping = NK_CLIPPING_OFF; nk_fill_rect(canvas.painter, nk_rect(15,15,140,140), 5, nk_rgb(247, 230, 154)); nk_fill_rect(canvas.painter, nk_rect(20,20,135,135), 5, nk_rgb(188, 174, 118)); nk_draw_text(canvas.painter, nk_rect(30, 30, 100, 20), "Text to draw", 12, &font, nk_rgb(188,174,118), nk_rgb(0,0,0)); nk_fill_rect(canvas.painter, nk_rect(160,20,70,70), 0, nk_rgb(0,0,255)); nk_fill_circle(canvas.painter, nk_rect(20,160,60,60), nk_rgb(255,0,0)); nk_fill_triangle(canvas.painter, 160, 160, 230, 160, 195, 220, nk_rgb(0,255,0)); nk_fill_arc(canvas.painter, 195, 120, 30, 0, 3.141592654f * 3.0f / 4.0f, nk_rgb(255,255,0)); nk_stroke_line(canvas.painter, 15, 10, 100, 10, 2.0f, nk_rgb(189,45,75)); nk_stroke_rect(canvas.painter, nk_rect(235, 20, 70, 70), 10, 3, nk_rgb(0,0,255)); nk_stroke_curve(canvas.painter, 235, 130, 252, 170, 288, 80, 305, 130, 1, nk_rgb(0,150,220)); nk_stroke_triangle(canvas.painter, 235, 160, 305, 160, 270, 220, 10, nk_rgb(255,0,143)); nk_stroke_circle(canvas.painter, nk_rect(90, 160, 60, 60), 2, nk_rgb(0,255,120)); /* load some image */ // uint32_t im_w, im_h, im_format; // images[0] = stbi_load("SPBGU_logo.png", &im_w, &im_h, &im_format, 0); // if (images[0] == NULL) // printf("\nstbi_load doesn't work. :(\n"); // else { // printf("\nLoaded image: id = %i width = %i\theight = %i\tformat = %i", (int)*images[0], im_w, im_h, im_format); struct nk_image im; im.handle.ptr = "SPBGU_logo.png"; im.handle.id = 0; im.w = 0; im.h = 0; im.region[0] = 0; im.region[1] = 0; im.region[2] = 267; im.region[3] = 333; nk_draw_image(canvas.painter, nk_rect(320, 10, 130, 150), &im, nk_rgb(100, 0, 0)); // } // stbi_image_free(images[0]); } canvas_end(&ctx, &canvas); /* Draw each element */ draw(&this_vc, &ctx, width, height); } nk_free(&ctx); printf("\nEnd of program.\nIf you see it then something goes wrong.\n"); return 0; }