improved efficiency

src/Main.java

@@ -12,7 +12,7 @@ public class Main {
         try{
             Window window = XAMLParser.parse("ui.xml");
             assert window != null;
-            window.revalidate();
+            window.repaint();
             Button button = (Button)window.findByName("button3");
             button.addMouseListener(new MouseAdapter() {
                 @Override
@@ -24,11 +24,11 @@ public class Main {
                     else {
                         panel.setOverlapping(true);
                     }
-                    window.revalidate();
+                    window.repaint();
                 }
             });
 
-            window.revalidate();
+            window.repaint();
             System.out.println(Float.parseFloat("3"));
             long now;
             long prev = 0;

src/guiTree/Components/Button.java

@@ -38,30 +38,30 @@ public class Button extends Visual {
             @Override
             public void mousePressed(MouseEvent mouseEvent) {
                 pressed = true;
-                revalidate();
+                repaint();
             }
             @Override
             public void mouseReleased(MouseEvent mouseEvent) {
                 pressed = false;
-                revalidate();
+                repaint();
             }
             @Override
             public void mouseEntered(MouseEvent mouseEvent) {
                 hovered = true;
-                revalidate();
+                repaint();
             }
             @Override
             public void mouseExited(MouseEvent mouseEvent) {
                 hovered = false;
-                revalidate();
+                repaint();
             }
             @Override
             public void mouseDragged(MouseEvent mouseEvent) {
-                revalidate();
+                repaint();
             }
             @Override
             public void mouseMoved(MouseEvent mouseEvent) {
-                revalidate();
+                repaint();
             }
         });
     }

src/guiTree/Visual.java

@@ -40,6 +40,8 @@ public class Visual {
     private Float relativeHeight;
     private Integer locationX;
     private Integer locationY;
+    private Float relativeX;
+    private Float relativeY;
     private Color backgroundColor;
     private Color foregroundColor;
     private Color fontColor;
@@ -78,6 +80,8 @@ public class Visual {
         this.height = height;
         this.relativeWidth = -1.0f;
         this.relativeHeight = -1.0f;
+        this.relativeX = -1.0f;
+        this.relativeY = -1.0f;
 
         this.locationX = 0;
         this.locationY = 0;
@@ -107,6 +111,9 @@ public class Visual {
             if(v.relativeHeight > 0.0 || v.relativeWidth > 0.0) {
                 v.setSize();
             }
+            if(v.relativeX >= 0.0 || v.relativeY >= 0.0) {
+                v.setLocation();
+            }
         }
         this.dirty = true;
         this.notifyParent(SIZE_CHANGED);
@@ -124,11 +131,30 @@ public class Visual {
         setSize();
     }
 
+    public void setLocation() {
+        if(parent != null) {
+            if(relativeX >= 0.0) {
+                locationX = Math.round(relativeX * parent.width);
+            }
+            if(relativeY >= 0.0) {
+                locationY = Math.round(relativeY * parent.height);
+            }
+        }
+
+        this.dirty = true;
+        notifyParent(LOCATION_CHANGED);
+    }
+
+    public void setLocation(Float x, Float y) {
+        relativeX = x;
+        relativeY = y;
+        setLocation();
+    }
+
     public void setLocation(Integer x, Integer y) {
         this.locationX = x;
         this.locationY = y;
-        this.dirty = true;
-        notifyParent(LOCATION_CHANGED);
+        setLocation();
     }
 
     public void setLocationX(Integer x) {
@@ -251,22 +277,20 @@ public class Visual {
         }
     }
 
-    private void repaint() {
-        this.paint(imageBuffer);
+    public void repaint() {
+        if(!this.active){
+            return;
+        }
         if(this.dirty) {
             this.revalidate();
             return;
         }
         for(Visual v: children) {
             v.repaint();
-            imageBuffer.getGraphics().drawImage(v.imageBuffer, v.locationX, v.locationY, null);
         }
     }
 
-    public void revalidate() {
-        if(!this.active){
-            return;
-        }
+    private void revalidate() {
         clearImageBuffer();
         this.paint(imageBuffer);
         for (Visual v : children) {
@@ -280,7 +304,7 @@ public class Visual {
         }
         Window window = (Window)this;
         window.setFrameImageBuffer(imageBuffer);
-        window.repaint();
+        window.revalidate();
     }
 
     public void paint(BufferedImage imageBuffer) {
@@ -449,7 +473,6 @@ public class Visual {
 
     private void activate() {
         this.active = true;
-        this.imageBuffer = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
         for(Visual child: children) {
             child.activate();
         }

src/guiTree/Window.java

@@ -21,7 +21,6 @@ public class Window extends Visual {
     private TitleBar titleBar;
     private Panel mainPanel;
     private Panel contentPanel;
-    private ResizeListener windowResizeListener;
     private Point2d oldSize;
     private Point2d oldLocation;
 
@@ -31,25 +30,7 @@ public class Window extends Visual {
         this.setUndecorated(true);
         this.addWindowStateListener(e -> {
             this.setSize(getWidth(), getHeight());
-            revalidate();
-        });
-        Direction[] directions = {Direction.SOUTH, Direction.EAST, Direction.WEST};
-        windowResizeListener = new ResizeListener(directions, new Point2d(getWidth(), getHeight()), new Point2d(getLocationX(), getLocationY()));
-        this.addMouseListener(windowResizeListener);
-        this.addMouseListener(new MouseAdapter() {
-            @Override
-            public void mouseDragged(MouseEvent mouseEvent) {
-                setSize(windowResizeListener.size.x, windowResizeListener.size.y);
-                setLocation(windowResizeListener.location.x, windowResizeListener.location.y);
-            }
-            @Override
-            public void mouseMoved(MouseEvent mouseEvent) {
-                frame.setCursor(windowResizeListener.cursor);
-            }
-            @Override
-            public void mouseExited(MouseEvent mouseEvent) {
-                frame.setCursor(windowResizeListener.cursor);
-            }
+            repaint();
         });
         this.mainPanel = new Panel();
 
@@ -77,9 +58,8 @@ public class Window extends Visual {
         else {
             contentPanel.setSize(width, height);
         }
-        windowResizeListener.setSize(width, height);
         mainPanel.setSize(width, height);
-        revalidate();
+        repaint();
     }
 
     public void setFrameImageBuffer(BufferedImage imageBuffer){
@@ -87,7 +67,7 @@ public class Window extends Visual {
         this.frame.repaint();
     }
 
-    public void repaint() {
+    public void revalidate() {
         this.frame.repaint();
     }
 
@@ -171,7 +151,6 @@ public class Window extends Visual {
 
     public void setLocation(int x, int y) {
         this.frame.setLocation(x, y);
-        windowResizeListener.setLocation(x, y);
     }
 
     public void setMainPanel(Panel panel) {