RobLoach.raylib-nuklear/examples/raylib-nuklear-font.c

/**********************************************************************************************
*
*   raylib-nuklear-font - Example of using Nuklear with a custom Raylib font.
*
*   LICENSE: zlib/libpng
*
*   raylib-nuklear is licensed under an unmodified zlib/libpng license, which is an OSI-certified,
*   BSD-like license that allows static linking with closed source software:
*
*   Copyright (c) 2020 Rob Loach (@RobLoach)
*
*   This software is provided "as-is", without any express or implied warranty. In no event
*   will the authors be held liable for any damages arising from the use of this software.
*
*   Permission is granted to anyone to use this software for any purpose, including commercial
*   applications, and to alter it and redistribute it freely, subject to the following restrictions:
*
*     1. The origin of this software must not be misrepresented; you must not claim that you
*     wrote the original software. If you use this software in a product, an acknowledgment
*     in the product documentation would be appreciated but is not required.
*
*     2. Altered source versions must be plainly marked as such, and must not be misrepresented
*     as being the original software.
*
*     3. This notice may not be removed or altered from any source distribution.
*
**********************************************************************************************/

#include "raylib.h"

#define RAYLIB_NUKLEAR_IMPLEMENTATION
#include "raylib-nuklear.h"

int main(void)
{
    // Initialization
    //--------------------------------------------------------------------------------------
    const int screenWidth = 800;
    const int screenHeight = 450;
    const int fontSize = 18;

    InitWindow(screenWidth, screenHeight, "[raylib-nuklear] font example");
    Font font = LoadFontEx("resources/anonymous_pro_bold.ttf", fontSize, NULL, 0);

    SetTargetFPS(60);               // Set our game to run at 60 frames-per-second
    //--------------------------------------------------------------------------------------

    /* GUI */
    struct nk_colorf bg = ColorToNuklearF(SKYBLUE);
    struct nk_context *ctx = InitNuklearEx(font, fontSize);

    // Main game loop
    while (!WindowShouldClose())    // Detect window close button or ESC key
    {
        // Update
        UpdateNuklear(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"))
                TraceLog(LOG_INFO, "button pressed");

            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);

        // Draw
        //----------------------------------------------------------------------------------
        BeginDrawing();

            ClearBackground(ColorFromNuklearF(bg));

            DrawNuklear(ctx);

        EndDrawing();
        //----------------------------------------------------------------------------------
    }

    // De-Initialization
    //--------------------------------------------------------------------------------------
    UnloadNuklear(ctx);     // Unload the Nuklear GUI
    UnloadFont(font);
    CloseWindow();
    //--------------------------------------------------------------------------------------

    return 0;
}