MyComponent out of Destructible to handle Component-Events too

src/main/java/de/ph87/kindermalen/Destructible.java

@@ -1,40 +0,0 @@
-package de.ph87.kindermalen;
-
-import de.ph87.kindermalen.util.Publisher;
-import de.ph87.kindermalen.util.Subscription;
-
-import javax.swing.*;
-import java.awt.*;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.function.Consumer;
-
-public abstract class Destructible extends JPanel {
-
-  private final List<Subscription<?>> subscriptions = new ArrayList<>();
-
-  public void destruct() {
-    subscriptions.forEach(this::unsubscribe);
-    synchronized (getTreeLock()) {
-      for (final Component component : getComponents()) {
-        if (component instanceof Destructible) {
-          ((Destructible) component).destruct();
-        }
-      }
-    }
-  }
-
-  protected <T> Subscription<T> subscribe(final Publisher<T> publisher, final Consumer<T> next) {
-    final Subscription<T> subscription = publisher.subscribe(next);
-    subscriptions.add(subscription);
-    return subscription;
-  }
-
-  protected void unsubscribe(final Subscription<?> subscription) {
-    if (!subscriptions.remove(subscription)) {
-      throw new RuntimeException();
-    }
-    subscription.unsubscribe();
-  }
-
-}

src/main/java/de/ph87/kindermalen/MyComponent.java

@@ -0,0 +1,102 @@
+package de.ph87.kindermalen;
+
+import de.ph87.kindermalen.util.Publisher;
+import de.ph87.kindermalen.util.Subscription;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+public abstract class MyComponent extends JPanel implements ComponentListener, MouseListener, MouseMotionListener {
+
+  private final List<Subscription<?>> subscriptions = new ArrayList<>();
+
+  public MyComponent() {
+    addComponentListener(this);
+    addMouseListener(this);
+    addMouseMotionListener(this);
+  }
+
+  public void destruct() {
+    subscriptions.forEach(this::unsubscribe);
+    synchronized (getTreeLock()) {
+      for (final Component component : getComponents()) {
+        if (component instanceof MyComponent) {
+          ((MyComponent) component).destruct();
+        }
+      }
+    }
+  }
+
+  protected <T> Subscription<T> subscribe(final Publisher<T> publisher, final Consumer<T> next) {
+    final Subscription<T> subscription = publisher.subscribe(next);
+    subscriptions.add(subscription);
+    return subscription;
+  }
+
+  protected void unsubscribe(final Subscription<?> subscription) {
+    if (!subscriptions.remove(subscription)) {
+      throw new RuntimeException();
+    }
+    subscription.unsubscribe();
+  }
+
+  @Override
+  public void componentResized(final ComponentEvent e) {
+    // nothing
+  }
+
+  @Override
+  public void componentMoved(final ComponentEvent e) {
+    // nothing
+  }
+
+  @Override
+  public void componentShown(final ComponentEvent e) {
+    // nothing
+  }
+
+  @Override
+  public void componentHidden(final ComponentEvent e) {
+    // nothing
+  }
+
+  @Override
+  public void mouseClicked(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+  @Override
+  public void mousePressed(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+  @Override
+  public void mouseReleased(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+  @Override
+  public void mouseEntered(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+  @Override
+  public void mouseExited(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+  @Override
+  public void mouseDragged(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+  @Override
+  public void mouseMoved(final MouseEvent mouseEvent) {
+    // nothing
+  }
+
+}

src/main/java/de/ph87/kindermalen/Sidebar.java

@@ -5,24 +5,27 @@ import de.ph87.kindermalen.tools.tool.Tool;
 import de.ph87.kindermalen.tools.tool.ToolPanel;
 import de.ph87.kindermalen.tools.tool.stamp.StampPanel;
 import de.ph87.kindermalen.tools.tool.stamp.StampTool;
-import de.ph87.kindermalen.util.MouseListener;
 
 import javax.swing.*;
 import java.awt.*;
+import java.awt.event.MouseEvent;
 
 import static de.ph87.kindermalen.CONFIG.BORDERS;
 import static de.ph87.kindermalen.util.MyGridBagConstraints.C;
 
-public class Sidebar extends Destructible {
+public class Sidebar extends MyComponent {
+
+  private final Environment environment;
 
   private ToolPanel toolPanel = null;
 
   public Sidebar(final Environment environment) {
+    this.environment = environment;
+
     setPreferredSize(new Dimension(300, 0));
     setLayout(new GridBagLayout());
 
     final JButton newDrawing = new JButton("Neues Bild");
-    MouseListener.onPress(newDrawing, e -> environment.newDrawing());
     add(newDrawing, C(0, 0, 1, 0));
 
     final ToolsPanel toolsPanel = new ToolsPanel(environment.getTools());
@@ -31,6 +34,11 @@ public class Sidebar extends Destructible {
     subscribe(environment.getTools().getOnSelect(), this::onToolSelected);
   }
 
+  @Override
+  public void mousePressed(final MouseEvent mouseEvent) {
+    environment.newDrawing();
+  }
+
   @Override
   public void paint(final Graphics g) {
     super.paint(g);

src/main/java/de/ph87/kindermalen/drawing/Drawing.java

@@ -1,6 +1,5 @@
 package de.ph87.kindermalen.drawing;
 
-import lombok.Getter;
 import lombok.ToString;
 import lombok.extern.slf4j.Slf4j;
 
@@ -13,15 +12,14 @@ import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 
 @Slf4j
-@Getter
 @ToString
 public class Drawing {
 
-  private final int width;
+  public final int width;
 
-  private final int height;
+  public final int height;
 
-  private final ZonedDateTime created = ZonedDateTime.now();
+  public final ZonedDateTime created = ZonedDateTime.now();
 
   @ToString.Exclude
   private final Layer current;

src/main/java/de/ph87/kindermalen/drawing/DrawingPanel.java

@@ -1,16 +1,14 @@
 package de.ph87.kindermalen.drawing;
 
-import de.ph87.kindermalen.Destructible;
 import de.ph87.kindermalen.Environment;
+import de.ph87.kindermalen.MyComponent;
 import de.ph87.kindermalen.tools.tool.Tool;
-import de.ph87.kindermalen.util.MouseListener;
 import de.ph87.kindermalen.util.Subscription;
 import de.ph87.kindermalen.util.Vector;
 import lombok.extern.slf4j.Slf4j;
 
 import java.awt.*;
 import java.awt.event.ComponentEvent;
-import java.awt.event.ComponentListener;
 import java.awt.event.MouseEvent;
 import java.awt.geom.AffineTransform;
 import java.awt.geom.NoninvertibleTransformException;
@@ -20,7 +18,7 @@ import java.io.File;
 import java.io.IOException;
 
 @Slf4j
-public class DrawingPanel extends Destructible {
+public class DrawingPanel extends MyComponent {
 
   private static final File SAVE_DIR = new File("./data/images");
 
@@ -38,14 +36,18 @@ public class DrawingPanel extends Destructible {
 
   public DrawingPanel(final Environment environment) {
     this.environment = environment;
-    MouseListener.onPress(this, this::onPress);
-    MouseListener.onRelease(this, this::onRelease);
-    MouseListener.onMove(this, this::onMove);
-    MouseListener.onDrag(this, this::onDrag);
     subscribe(environment.getTools().getOnSelect(), this::onToolSelect);
     subscribe(environment.getOnNewDrawing(), drawing -> repaint());
+  }
+
+  private void onToolSelect(final Tool tool) {
+    repaint();
+    if (toolChangeSubscription != null) {
+      unsubscribe(toolChangeSubscription);
+    }
+    toolChangeSubscription = subscribe(tool.getOnChange(), ignore -> repaint());
+  }
 
-    addComponentListener(new ComponentListener() {
   @Override
   public void componentResized(final ComponentEvent e) {
     calculateTransform();
@@ -58,26 +60,46 @@ public class DrawingPanel extends Destructible {
 
   @Override
   public void componentShown(final ComponentEvent e) {
+    calculateTransform();
   }
 
   @Override
-      public void componentHidden(final ComponentEvent e) {
+  public void mousePressed(final MouseEvent mouseEvent) {
+    if (mouseEvent.getButton() == 3) {
+      environment.getDrawing().undo();
+      return;
     }
-    });
+    environment.getDrawing().newRevision();
+    lastPoint = environment.getTools().getTool().apply(null, environment.getDrawing(), transform(mouseEvent.getPoint()));
+    repaint();
   }
 
-  private void onToolSelect(final Tool tool) {
-    repaint();
-    if (toolChangeSubscription != null) {
-      unsubscribe(toolChangeSubscription);
+  @Override
+  public void mouseReleased(final MouseEvent mouseEvent) {
+    try {
+      environment.getDrawing().save(SAVE_DIR);
+    } catch (IOException ex) {
+      log.error(ex.toString());
     }
-    toolChangeSubscription = subscribe(tool.getOnChange(), ignore -> repaint());
+  }
+
+  @Override
+  public void mouseDragged(final MouseEvent mouseEvent) {
+    cursor = transform(mouseEvent.getPoint());
+    lastPoint = environment.getTools().getTool().apply(lastPoint, environment.getDrawing(), transform(mouseEvent.getPoint()));
+    repaint();
+  }
+
+  @Override
+  public void mouseMoved(final MouseEvent mouseEvent) {
+    cursor = transform(mouseEvent.getPoint());
+    repaint();
   }
 
   private void calculateTransform() {
-    final Image image = environment.getDrawing().getImage();
-    final Rectangle box = fitInside(image.getWidth(null), image.getHeight(null), getWidth(), getHeight(), false);
-    final double scale = (double) box.width / image.getWidth(null);
+    final Drawing drawing = environment.getDrawing();
+    final Rectangle box = fitInside(drawing.width, drawing.height, getWidth(), getHeight(), false);
+    final double scale = (double) box.width / drawing.width;
     transform = new AffineTransform();
     transform.translate(box.x, box.y);
     transform.scale(scale, scale);
@@ -88,40 +110,11 @@ public class DrawingPanel extends Destructible {
     }
   }
 
-  private void onMove(final MouseEvent mouseEvent) {
-    cursor = transform(mouseEvent.getPoint());
-    repaint();
-  }
-
-  private void onPress(final MouseEvent mouseEvent) {
-    if (mouseEvent.getButton() == 3) {
-      environment.getDrawing().undo();
-      return;
-    }
-    environment.getDrawing().newRevision();
-    lastPoint = environment.getTools().getTool().apply(null, environment.getDrawing(), transform(mouseEvent.getPoint()));
-    repaint();
-  }
-
-  private void onDrag(final MouseEvent mouseEvent) {
-    cursor = transform(mouseEvent.getPoint());
-    lastPoint = environment.getTools().getTool().apply(lastPoint, environment.getDrawing(), transform(mouseEvent.getPoint()));
-    repaint();
-  }
-
   private Vector transform(final Point point) {
     final Point2D transformed = inverseTransform.transform(new Point2D.Double(point.x, point.y), null);
     return new Vector(transformed);
   }
 
-  private void onRelease(final MouseEvent mouseEvent) {
-    try {
-      environment.getDrawing().save(SAVE_DIR);
-    } catch (IOException ex) {
-      log.error(ex.toString());
-    }
-  }
-
   @Override
   public void paint(final Graphics graphics) {
     final Graphics2D g = (Graphics2D) graphics;
@@ -129,15 +122,15 @@ public class DrawingPanel extends Destructible {
     g.fillRect(0, 0, getWidth(), getHeight());
     g.setTransform(transform);
 
-    if (environment == null) {
+    if (environment == null || environment.getDrawing() == null) {
       return;
     }
 
-    final Image image = environment.getDrawing().getImage();
+    final Drawing drawing = environment.getDrawing();
 
     g.setColor(Color.white);
-    g.fillRect(0, 0, image.getWidth(null), image.getHeight(null));
-    g.drawImage(image, 0, 0, image.getWidth(null), image.getHeight(null), null);
+    g.fillRect(0, 0, drawing.width, drawing.height);
+    g.drawImage(drawing.getImage(), 0, 0, drawing.width, drawing.height, null);
 
     final BufferedImage preview = environment.getTools().getTool().getPreview();
     if (cursor != null && preview != null) {

src/main/java/de/ph87/kindermalen/tools/ToolButton.java

@@ -1,20 +1,28 @@
 package de.ph87.kindermalen.tools;
 
+import de.ph87.kindermalen.MyComponent;
 import de.ph87.kindermalen.tools.tool.Tool;
-import de.ph87.kindermalen.util.MouseListener;
 
 import java.awt.*;
+import java.awt.event.MouseEvent;
 
 import static de.ph87.kindermalen.CONFIG.STAMP_BUTTON_SIZE;
 
-public class ToolButton extends Component {
+public class ToolButton extends MyComponent {
+
+  private final Tools tools;
 
   private final Tool tool;
 
   public ToolButton(final Tools tools, final Tool tool) {
+    this.tools = tools;
     this.tool = tool;
     setPreferredSize(new Dimension(STAMP_BUTTON_SIZE, STAMP_BUTTON_SIZE));
-    MouseListener.onRelease(this, e -> tools.setTool(tool));
+  }
+
+  @Override
+  public void mouseReleased(final MouseEvent mouseEvent) {
+    tools.setTool(tool);
   }
 
   @Override

src/main/java/de/ph87/kindermalen/tools/tool/ToolPanel.java

@@ -1,9 +1,9 @@
 package de.ph87.kindermalen.tools.tool;
 
-import de.ph87.kindermalen.Destructible;
+import de.ph87.kindermalen.MyComponent;
 import lombok.extern.slf4j.Slf4j;
 
 @Slf4j
-public abstract class ToolPanel extends Destructible {
+public abstract class ToolPanel extends MyComponent {
 
 }

src/main/java/de/ph87/kindermalen/tools/tool/stamp/StampButton.java

@@ -1,16 +1,15 @@
 package de.ph87.kindermalen.tools.tool.stamp;
 
-import de.ph87.kindermalen.util.MouseListener;
+import de.ph87.kindermalen.MyComponent;
 import lombok.Getter;
 
-import javax.swing.*;
 import java.awt.*;
 import java.awt.event.MouseEvent;
 import java.awt.image.BufferedImage;
 
 import static de.ph87.kindermalen.CONFIG.*;
 
-public class StampButton extends JPanel {
+public class StampButton extends MyComponent {
 
   private final StampTool tool;
 
@@ -27,24 +26,24 @@ public class StampButton extends JPanel {
     this.tool = tool;
     this.image = image;
     setPreferredSize(new Dimension(STAMP_BUTTON_SIZE, STAMP_BUTTON_SIZE));
-    MouseListener.onRelease(this, this::onRelease);
-    MouseListener.onEnter(this, this::onEnter);
-    MouseListener.onExit(this, this::onExit);
     icon = image.getSize(STAMP_BUTTON_ICON_REAL_SIZE);
     position = new Point((STAMP_BUTTON_SIZE - icon.getWidth()) / 2, (STAMP_BUTTON_SIZE - icon.getHeight()) / 2);
   }
 
-  private void onRelease(final MouseEvent mouseEvent) {
+  @Override
+  public void mouseReleased(final MouseEvent mouseEvent) {
     this.tool.setImage(image);
     this.tool.prepare();
   }
 
-  private void onEnter(final MouseEvent mouseEvent) {
+  @Override
+  public void mouseEntered(final MouseEvent mouseEvent) {
     hover = true;
     repaint();
   }
 
-  private void onExit(final MouseEvent mouseEvent) {
+  @Override
+  public void mouseExited(final MouseEvent mouseEvent) {
     hover = false;
     repaint();
   }

src/main/java/de/ph87/kindermalen/tools/tool/stamp/StampButtonList.java

@@ -1,6 +1,6 @@
 package de.ph87.kindermalen.tools.tool.stamp;
 
-import de.ph87.kindermalen.Destructible;
+import de.ph87.kindermalen.MyComponent;
 import lombok.extern.slf4j.Slf4j;
 
 import java.awt.*;
@@ -8,7 +8,7 @@ import java.util.Comparator;
 import java.util.List;
 
 @Slf4j
-public class StampButtonList extends Destructible {
+public class StampButtonList extends MyComponent {
 
   public StampButtonList(final StampTool stampTool) {
     final FlowLayout flowLayout = new FlowLayout(FlowLayout.LEADING, 0, 0);

src/main/java/de/ph87/kindermalen/tools/tool/stamp/StampOptions.java

@@ -1,13 +1,13 @@
 package de.ph87.kindermalen.tools.tool.stamp;
 
-import de.ph87.kindermalen.Destructible;
+import de.ph87.kindermalen.MyComponent;
 
 import javax.swing.*;
 import java.awt.*;
 
 import static de.ph87.kindermalen.CONFIG.BORDERS;
 
-public class StampOptions extends Destructible {
+public class StampOptions extends MyComponent {
 
   private final JSlider sizeSlider = new JSlider(10, 1000, 100);
 

src/main/java/de/ph87/kindermalen/util/MouseListener.java

@@ -1,109 +0,0 @@
-package de.ph87.kindermalen.util;
-
-import java.awt.*;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseMotionListener;
-import java.util.function.Consumer;
-
-public class MouseListener {
-
-  public static void onPress(final Component component, final Consumer<MouseEvent> onPress) {
-    component.addMouseListener(new MouseListenerImpl() {
-      @Override
-      public void mousePressed(final MouseEvent mouseEvent) {
-        onPress.accept(mouseEvent);
-      }
-    });
-  }
-
-  public static void onRelease(final Component component, final Consumer<MouseEvent> release) {
-    component.addMouseListener(new MouseListenerImpl() {
-      @Override
-      public void mouseReleased(final MouseEvent mouseEvent) {
-        if (release != null) {
-          release.accept(mouseEvent);
-        }
-      }
-    });
-  }
-
-  public static void onMove(final Component component, final Consumer<MouseEvent> onMove) {
-    component.addMouseMotionListener(new MouseMotionListenerImpl() {
-      @Override
-      public void mouseMoved(final MouseEvent mouseEvent) {
-        onMove.accept(mouseEvent);
-      }
-    });
-  }
-
-  public static void onDrag(final Component component, final Consumer<MouseEvent> onDrag) {
-    component.addMouseMotionListener(new MouseMotionListenerImpl() {
-      @Override
-      public void mouseDragged(final MouseEvent mouseEvent) {
-        onDrag.accept(mouseEvent);
-      }
-    });
-  }
-
-  public static void onEnter(final Component component, final Consumer<MouseEvent> onEnter) {
-    component.addMouseListener(new MouseListenerImpl() {
-      @Override
-      public void mouseEntered(final MouseEvent mouseEvent) {
-        onEnter.accept(mouseEvent);
-      }
-    });
-  }
-
-  public static void onExit(final Component component, final Consumer<MouseEvent> onExit) {
-    component.addMouseListener(new MouseListenerImpl() {
-      @Override
-      public void mouseExited(final MouseEvent mouseEvent) {
-        onExit.accept(mouseEvent);
-      }
-    });
-  }
-
-  private static class MouseListenerImpl implements java.awt.event.MouseListener {
-
-    @Override
-    public void mouseClicked(final MouseEvent mouseEvent) {
-
-    }
-
-    @Override
-    public void mousePressed(final MouseEvent mouseEvent) {
-
-    }
-
-    @Override
-    public void mouseReleased(final MouseEvent mouseEvent) {
-
-    }
-
-    @Override
-    public void mouseEntered(final MouseEvent mouseEvent) {
-
-    }
-
-    @Override
-    public void mouseExited(final MouseEvent mouseEvent) {
-
-    }
-
-  }
-
-  private static class MouseMotionListenerImpl implements MouseMotionListener {
-
-    @Override
-    public void mouseDragged(final MouseEvent mouseEvent) {
-
-    }
-
-    @Override
-    public void mouseMoved(final MouseEvent mouseEvent) {
-
-    }
-
-  }
-
-}