Base java event POC

src/main/java/ovh/gasser/newshapes/ui/ShapeDraftman.java

@@ -0,0 +1,59 @@
+package ovh.gasser.newshapes.ui;
+
+import ovh.gasser.newshapes.ShapeVisitor;
+import ovh.gasser.newshapes.shapes.Shape;
+import ovh.gasser.newshapes.attributes.ColorAttributes;
+import ovh.gasser.newshapes.attributes.SelectionAttributes;
+import ovh.gasser.newshapes.shapes.SCollection;
+import ovh.gasser.newshapes.shapes.SRectangle;
+
+import java.awt.*;
+
+public class ShapeDraftman implements ShapeVisitor {
+
+    private static final ColorAttributes DEFAULT_COLOR_ATTRIBUTES =
+            new ColorAttributes(false, true, Color.BLACK, Color.BLACK);
+    private Graphics2D g2d;
+
+
+    public ShapeDraftman(Graphics graph) {
+        this.g2d = (Graphics2D) graph;
+    }
+
+    @Override
+    public void visitRectangle(SRectangle rect) {
+        Rectangle r = rect.getBounds();
+        ColorAttributes colAttrs = (ColorAttributes) rect.getAttributes(ColorAttributes.ID);
+        if (colAttrs == null){
+            colAttrs = DEFAULT_COLOR_ATTRIBUTES;
+        }
+        if (colAttrs.filled) {
+            this.g2d.setColor(colAttrs.filledColor);
+            this.g2d.fillRect(r.x, r.y, r.width, r.height);
+        }
+        if (colAttrs.stroked) {
+            this.g2d.setColor(colAttrs.strokedColor);
+            this.g2d.drawRect(r.x, r.y, r.width, r.height);
+        }
+        drawHandlerIfSelected(rect);
+    }
+
+    @Override
+    public void visitCollection(SCollection collection) {
+        for (Shape s: collection) {
+            s.accept(this);
+        }
+        drawHandlerIfSelected(collection);
+    }
+
+    private void drawHandlerIfSelected(Shape s) {
+        SelectionAttributes selAttrs = (SelectionAttributes) s.getAttributes(SelectionAttributes.ID);
+        if ((selAttrs != null) && (selAttrs.selected)){
+            Rectangle bounds = s.getBounds();
+            this.g2d.setColor(Color.RED);
+            this.g2d.drawRect(bounds.x - 5, bounds.y - 5, 5, 5);
+            this.g2d.drawRect(bounds.x + bounds.width, bounds.y + bounds.height, 5, 5);
+        }
+    }
+
+}