package com.haxademic.demo.draw.mapping;

import com.haxademic.core.app.PAppletHax;
import com.haxademic.core.app.config.AppSettings;
import com.haxademic.core.app.config.Config;
import com.haxademic.core.draw.image.ImageUtil;
import com.haxademic.core.draw.mapping.CaptureKeystoneToRectBuffer;
import com.haxademic.core.file.FileUtil;
import com.haxademic.core.hardware.webcam.WebCam;
import com.haxademic.core.media.DemoAssets;

import processing.core.PGraphics;
import processing.core.PImage;

public class Demo_CaptureKeystoneToRectBuffer
extends PAppletHax {
	public static void main(String args[]) { arguments = args; PAppletHax.main(Thread.currentThread().getStackTrace()[1].getClassName()); }

	protected PImage sourceTexture;
	protected PGraphics sourceBuffer;
	protected CaptureKeystoneToRectBuffer mappedCapture;
	protected boolean debug = true;

	protected void config() {
		Config.setProperty( AppSettings.WIDTH, 1280 );
		Config.setProperty( AppSettings.HEIGHT, 720 );
	}

	protected void firstFrame() {
		// load source image
		sourceTexture = DemoAssets.justin();
		sourceBuffer = ImageUtil.imageToGraphics(sourceTexture);
		mappedCapture = new CaptureKeystoneToRectBuffer(sourceBuffer, 450, 200, FileUtil.getPath("text/keystoning/capture-map-demo.txt"));
	}
	
	public void keyPressed() {
		super.keyPressed();
		if(p.key == 'd') {
			debug = !debug;
			mappedCapture.setActive(debug);
		}
		if(p.key == 'r') mappedCapture.resetCorners();
	}

	protected void drawApp() {
		p.background(0);
		
		// update mapped source to buffer
		mappedCapture.update();
		
		// draw mapping UI
		if(WebCam.instance().image().width > 400) sourceTexture = WebCam.instance().image();	// draw webcam if exists
		ImageUtil.cropFillCopyImage(sourceTexture, sourceBuffer, true);			// reset source buffer image
		if(debug == true) mappedCapture.drawDebug(sourceBuffer, true);			// then draw mapping UI on top
		
		// draw mapped source & result
		p.image(sourceBuffer, 0, 0);
		p.image(mappedCapture.mappedBuffer(), 0, sourceBuffer.height);
	}

}

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Update Demo_CaptureKeystoneToRectBuffer.java