stuff-/ScreenManager.java at master · jyin2/stuff- · GitHub

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package start;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.image.BufferStrategy;
import java.lang.reflect.InvocationTargetException;
import javax.swing.JFrame;

public class ScreenManager {

	private GraphicsDevice vc;

	//give vc access to monitor screen
	public ScreenManager() {
		GraphicsEnvironment e = GraphicsEnvironment.getLocalGraphicsEnvironment();
		vc = e.getDefaultScreenDevice();

	}
	//get all compatible DM
	public DisplayMode[] getCompatibleDisplayModes() {
		return vc.getDisplayModes();
	}

	// compares DM passed in to vc DM and see if match
	public DisplayMode findFirstCompatibleMode(DisplayMode modes[]) {
		DisplayMode goodModes[] = vc.getDisplayModes();
		for(int x=0; x<modes.length;x++) {
			for(int y=0; y<goodModes.length;y++) {
				if(displayModesMatch(modes[x],goodModes[y])) {
					return modes[x];
				}
			}
		}
		return null;
	}
	//get current DM
	public DisplayMode getCurrentDisplayMode() {
		return vc.getDisplayMode();
	}

	//checl if two modes match each other
	public boolean displayModesMatch(DisplayMode m1, DisplayMode m2) {
		if(m1.getWidth() != m2.getWidth() || m1.getHeight() != m2.getHeight()) {
			return false;
		}
		if(m1.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && m2.getBitDepth() != DisplayMode.BIT_DEPTH_MULTI && m1.getBitDepth() != m2.getBitDepth()) {
			return false;
		}
		if(m1.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && m2.getRefreshRate() != DisplayMode.REFRESH_RATE_UNKNOWN && m1.getRefreshRate() != m2.getRefreshRate()) {
			return false;
		}
		return true;
	}

	//make frame full screen
	public void setFullScreen(DisplayMode dm) {
		JFrame f = new JFrame();
		f.setUndecorated(true);
		f.setIgnoreRepaint(true);
		f.setResizable(false);
		vc.setFullScreenWindow(f);

		if(dm != null && vc.isDisplayChangeSupported()) {
			try {
				vc.setDisplayMode(dm);
			}catch(Exception ex) {
				f.createBufferStrategy(2);
			}

		}
	}
	// we will set Graphics object = to this
public Graphics2D getGraphics() {
	Window w = vc.getFullScreenWindow();
	if(w != null) {
		BufferStrategy s = w.getBufferStrategy();
		return (Graphics2D)s.getDrawGraphics();
	}else {
		return null;
	}
}
// updates display
public void update() {
	Window w = vc.getFullScreenWindow();
	if(w != null) {
		BufferStrategy s = w.getBufferStrategy();
		if(!s.contentsLost()) {
			s.show();
		}
	}
}

// returns full screen window
public Window getFullScreenWindow() {
	return vc.getFullScreenWindow();
}
//get width
public int getWidth() {
	Window w = vc.getFullScreenWindow();
	if(w != null) {
		return w.getWidth();
	}else {
		return 0;
	}
}
public int getHeight() {
	Window w = vc.getFullScreenWindow();
	if(w != null) {
		return w.getHeight();
	}else {
		return 0;
	}
}
//get out of fullscreen
public void restoreScreen() {
	Window w = vc.getFullScreenWindow();
	if(w != null) {
		w.dispose();
	}
	vc.setFullScreenWindow(null);
}

// create image compatible with monitor
public BufferedImage createCompatibleImage(int w, int h, int t) {
	Window win = vc.getFullScreenWindow();
	if(win != null) {
		GraphicsConfiguration gc = win.getGraphicsConfiguration();
		return gc.createCompatibleImage(w,h,t);
	}
	return null;
}

}