com.dinasgames.engine.graphics.RenderWindow.java Source code

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Here is the source code for com.dinasgames.engine.graphics.RenderWindow.java

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package com.dinasgames.engine.graphics;

import com.dinasgames.engine.window.Window;
import java.nio.ByteBuffer;
import org.lwjgl.BufferUtils;
import org.lwjgl.opengl.GL11;

/**
 *
 * @author Jack
 */
public class RenderWindow extends Window {

    protected Color mBackgroundColor;
    protected Renderer mRenderer;

    public RenderWindow() {
        mRenderer = new Renderer();
        mBackgroundColor = Color.WHITE();
    }

    public Renderer getRenderer() {
        return mRenderer;
    }

    public RenderWindow setBackgroundColor(Color color) {
        mBackgroundColor = color;
        return this;
    }

    public Color getBackgroundColor() {
        return mBackgroundColor;
    }

    @Override
    /**
     * Clear the current window, render using the Renderer object and display it in the window.
     */
    public RenderWindow display() {

        // Clear display
        clear(mBackgroundColor);

        // Render objects
        mRenderer.render(this);

        // Update display
        super.display();

        return this;
    }

    /**
     * Capture an Image of the current display.
     * @return 
     */
    public Image capture() {

        Image image = new Image();

        if (setActive(true)) {

            int width = getWidth();
            int height = getHeight();

            ByteBuffer pixels = BufferUtils.createByteBuffer(width * height * 4);
            ByteBuffer row = BufferUtils.createByteBuffer(width * 4);
            for (int i = 0; i < height; ++i) {
                row.clear();
                GL11.glReadPixels(0, height - i - 1, width, 1, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, row);
                for (int j = 0; j < width * 4; j++) {
                    pixels.put(row.get());
                }
            }

            pixels.flip();

            image.create(width, height, pixels);

        }

        return image;

    }

}