added transparency

diy-layout-creator --username bancika@gmail.com/DIYLC/config.xml

@@ -3,6 +3,10 @@
     <string>defaults</string>
     <map/>
   </entry>
+  <entry>
+    <string>lastPath</string>
+    <string>C:\Documents and Settings\Branislav Stojkovic\Desktop</string>
+  </entry>
   <entry>
     <string>metric</string>
     <boolean>true</boolean>

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/components/AbstractLeadedDIYComponent.java

@@ -1,7 +1,9 @@
 package org.diylc.components;
 
+import java.awt.AlphaComposite;
 import java.awt.BasicStroke;
 import java.awt.Color;
+import java.awt.Composite;
 import java.awt.FontMetrics;
 import java.awt.Graphics2D;
 import java.awt.Point;
@@ -9,7 +11,6 @@ import java.awt.Rectangle;
 import java.awt.Shape;
 
 import org.diylc.core.ComponentState;
-import org.diylc.core.IDIYComponent;
 import org.diylc.core.Project;
 import org.diylc.core.annotations.EditableProperty;
 import org.diylc.core.measures.Size;
@@ -23,7 +24,7 @@ import org.diylc.utils.Constants;
  * 
  * @author Branislav Stojkovic
  */
-public abstract class AbstractLeadedDIYComponent<T> implements IDIYComponent<T> {
+public abstract class AbstractLeadedDIYComponent<T> extends AbstractTransparentComponent<T> {
 
 	private static final long serialVersionUID = 1L;
 
@@ -35,7 +36,6 @@ public abstract class AbstractLeadedDIYComponent<T> implements IDIYComponent<T>
 	protected Size height;
 	protected Point[] points = new Point[] { new Point((int) (-Constants.GRID * 5), 0),
 			new Point((int) (Constants.GRID * 5), 0) };
-	protected String name = "New Component";
 
 	protected AbstractLeadedDIYComponent() {
 		super();
@@ -131,8 +131,14 @@ public abstract class AbstractLeadedDIYComponent<T> implements IDIYComponent<T>
 		g2d.rotate(theta, shapeRect.width / 2, shapeRect.height / 2);
 		// Draw body.
 		if (componentState != ComponentState.DRAGGING) {
+			Composite oldComposite = g2d.getComposite();
+			if (alpha < MAX_ALPHA) {
+				g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
+						1f * alpha / MAX_ALPHA));
+			}
 			g2d.setColor(getBodyColor());
 			g2d.fill(shape);
+			g2d.setComposite(oldComposite);
 		}
 		g2d.setStroke(new BasicStroke(1));
 		g2d.setColor(getBorderColor());
@@ -148,15 +154,6 @@ public abstract class AbstractLeadedDIYComponent<T> implements IDIYComponent<T>
 				(int) (shapeRect.height - textRect.getHeight()) / 2 + fontMetrics.getAscent());
 	}
 
-	@EditableProperty(defaultable = false)
-	public String getName() {
-		return name;
-	}
-
-	public void setName(String name) {
-		this.name = name;
-	}
-
 	@EditableProperty(defaultable = true)
 	public Size getWidth() {
 		return width;
@@ -174,30 +171,4 @@ public abstract class AbstractLeadedDIYComponent<T> implements IDIYComponent<T>
 	public void setHeight(Size height) {
 		this.height = height;
 	}
-
-	@Override
-	public int hashCode() {
-		final int prime = 31;
-		int result = 1;
-		result = prime * result + ((name == null) ? 0 : name.hashCode());
-		return result;
-	}
-
-	@SuppressWarnings("unchecked")
-	@Override
-	public boolean equals(Object obj) {
-		if (this == obj)
-			return true;
-		if (obj == null)
-			return false;
-		if (getClass() != obj.getClass())
-			return false;
-		AbstractLeadedDIYComponent other = (AbstractLeadedDIYComponent) obj;
-		if (name == null) {
-			if (other.name != null)
-				return false;
-		} else if (!name.equals(other.name))
-			return false;
-		return true;
-	}
 }

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/components/AbstractTransparentComponent.java

@@ -0,0 +1,32 @@
+package org.diylc.components;
+
+import org.diylc.core.IDIYComponent;
+import org.diylc.core.annotations.EditableProperty;
+
+public abstract class AbstractTransparentComponent<T> implements IDIYComponent<T> {
+
+	private static final long serialVersionUID = 1L;
+
+	public static byte MAX_ALPHA = 127;
+
+	protected String name = "New Component";
+	protected byte alpha = MAX_ALPHA;
+
+	@EditableProperty(defaultable = false)
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	@EditableProperty
+	public Byte getAlpha() {
+		return alpha;
+	}
+
+	public void setAlpha(Byte alpha) {
+		this.alpha = alpha;
+	}
+}

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/gui/MainFrame.java

@@ -31,7 +31,6 @@ import org.diylc.plugins.statusbar.StatusBar;
 import org.diylc.plugins.toolbox.ToolBox;
 import org.diylc.presenter.Presenter;
 
-
 public class MainFrame extends JFrame implements IView {
 
 	private static final long serialVersionUID = 1L;
@@ -97,7 +96,7 @@ public class MainFrame extends JFrame implements IView {
 		super.setVisible(b);
 		// TODO: hack to prevent painting issues in the scroll bar rulers. Find
 		// a better fix if possible.
-		Timer timer = new Timer(200, new ActionListener() {
+		Timer timer = new Timer(500, new ActionListener() {
 
 			@Override
 			public void actionPerformed(ActionEvent e) {

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/gui/editor/ByteEditor.java

@@ -0,0 +1,26 @@
+package org.diylc.gui.editor;
+
+import javax.swing.JSlider;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
+
+import org.diylc.common.PropertyWrapper;
+
+public class ByteEditor extends JSlider {
+
+	private static final long serialVersionUID = 1L;
+
+	public ByteEditor(final PropertyWrapper property) {
+		super();
+		setMinimum(0);
+		setMaximum(127);
+		setValue((Byte) property.getValue());
+		addChangeListener(new ChangeListener() {
+
+			@Override
+			public void stateChanged(ChangeEvent e) {
+				property.setValue(new Integer(getValue()).byteValue());
+			}
+		});
+	}
+}

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/gui/editor/FieldEditorFactory.java

@@ -25,6 +25,11 @@ public class FieldEditorFactory {
 			EnumEditor editor = new EnumEditor(property);
 			return editor;
 		}
+		if (Byte.class.isAssignableFrom(property.getType())
+				|| byte.class.isAssignableFrom(property.getType())) {
+			ByteEditor byteEditor = new ByteEditor(property);
+			return byteEditor;
+		}
 		return null;
 	}
 }

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/plugins/toolbox/ComponentTabbedPane.java

@@ -1,6 +1,13 @@
 package org.diylc.plugins.toolbox;
 
+import java.awt.BorderLayout;
+import java.awt.Component;
 import java.awt.Container;
+import java.awt.Dimension;
+import java.awt.Insets;
+import java.awt.Rectangle;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
@@ -8,19 +15,25 @@ import java.util.Map;
 
 import javax.swing.BoxLayout;
 import javax.swing.JButton;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
 import javax.swing.JTabbedPane;
+import javax.swing.ScrollPaneConstants;
 
 import org.diylc.common.ComponentType;
 import org.diylc.common.IPlugInPort;
+import org.diylc.presenter.ComparatorFactory;
+import org.diylc.presenter.Presenter;
 
 /**
- * Tabbed pane that shows all available components categorized into
+ * Tabbed pane that shows all available components categorized into tabs.
- * tabs.
  * 
  * @author Branislav Stojkovic
  */
 class ComponentTabbedPane extends JTabbedPane {
 
+	public static int SCROLL_STEP = Presenter.ICON_SIZE + ComponentButton.MARGIN * 2 + 2;
+
 	private static final long serialVersionUID = 1L;
 	private final IPlugInPort plugInPort;
 
@@ -31,17 +44,68 @@ class ComponentTabbedPane extends JTabbedPane {
 		List<String> categories = new ArrayList<String>(componentTypes.keySet());
 		Collections.sort(categories);
 		for (String category : categories) {
-			addTab(category, createComponentPanel(componentTypes.get(category)));
+			JPanel panel = createTab((componentTypes.get(category)));
+			addTab(category, panel);
 		}
+		setPreferredSize(new Dimension(-1, Presenter.ICON_SIZE + ComponentButton.MARGIN * 2 + 38));
 	}
 
-	private Container createComponentPanel(List<ComponentType> componentTypes) {
+	private JPanel createTab(List<ComponentType> componentTypes) {
-		Container componentPanel = new Container();
+		JPanel panel = new JPanel(new BorderLayout());
-		componentPanel.setLayout(new BoxLayout(componentPanel, BoxLayout.X_AXIS));
+		final JScrollPane scrollPane = createComponentScrollBar(componentTypes);
+		panel.setOpaque(false);
+		JButton leftButton = new JButton("<");
+		leftButton.addActionListener(new ActionListener() {
+
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				Rectangle rect = scrollPane.getVisibleRect();
+				if (rect.x > SCROLL_STEP) {
+					rect.translate(-SCROLL_STEP, 0);
+				} else {
+					rect.translate(-rect.x, 0);
+				}
+			}
+		});
+		leftButton.setMargin(new Insets(0, 2, 0, 2));
+		JButton rightButton = new JButton(">");
+		rightButton.addActionListener(new ActionListener() {
+
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				Rectangle rect = scrollPane.getVisibleRect();
+				if (rect.x + rect.width < scrollPane.getViewport().getSize().width - SCROLL_STEP) {
+					rect.translate(SCROLL_STEP, 0);
+				} else {
+					rect.translate(scrollPane.getViewport().getSize().width - rect.x - rect.width,
+							0);
+				}
+			}
+		});
+		rightButton.setMargin(new Insets(0, 2, 0, 2));
+		panel.add(leftButton, BorderLayout.WEST);
+		panel.add(scrollPane);
+		panel.add(rightButton, BorderLayout.EAST);
+		return panel;
+	}
+
+	private JScrollPane createComponentScrollBar(List<ComponentType> componentTypes) {
+		JScrollPane scrollPane = new JScrollPane(createComponentPanel(componentTypes));
+		scrollPane.setOpaque(false);
+		scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+		scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
+		return scrollPane;
+	}
+
+	private Component createComponentPanel(List<ComponentType> componentTypes) {
+		Container toolbar = new Container();
+		Collections.sort(componentTypes, ComparatorFactory.getInstance()
+				.getComponentTypeComparator());
+		toolbar.setLayout(new BoxLayout(toolbar, BoxLayout.X_AXIS));
 		for (ComponentType componentType : componentTypes) {
 			JButton button = new ComponentButton(plugInPort, componentType);
-			componentPanel.add(button);
+			toolbar.add(button);
 		}
-		return componentPanel;
+		return toolbar;
 	}
 }

diy-layout-creator --username bancika@gmail.com/DIYLC/src/org/diylc/presenter/ComparatorFactory.java

@@ -3,6 +3,7 @@ package org.diylc.presenter;
 import java.util.Comparator;
 import java.util.List;
 
+import org.diylc.common.ComponentType;
 import org.diylc.core.IDIYComponent;
 
 public class ComparatorFactory {
@@ -10,6 +11,7 @@ public class ComparatorFactory {
 	private static ComparatorFactory instance;
 
 	private Comparator<IDIYComponent<?>> componentNameComparator;
+	private Comparator<ComponentType> componentTypeComparator;
 
 	public static ComparatorFactory getInstance() {
 		if (instance == null) {
@@ -36,6 +38,19 @@ public class ComparatorFactory {
 		return componentNameComparator;
 	}
 
+	public Comparator<ComponentType> getComponentTypeComparator() {
+		if (componentTypeComparator == null) {
+			componentTypeComparator = new Comparator<ComponentType>() {
+
+				@Override
+				public int compare(ComponentType o1, ComponentType o2) {
+					return o1.getName().compareToIgnoreCase(o2.getName());
+				}
+			};
+		}
+		return componentTypeComparator;
+	}
+
 	public Comparator<IDIYComponent<?>> getComponentZOrderComparator(
 			final List<IDIYComponent<?>> components) {
 		Comparator<IDIYComponent<?>> componentZOrderComparator = new Comparator<IDIYComponent<?>>() {

diy-layout-creator --username bancika@gmail.com/Library/src/org/diylc/components/boards/AbstractBoard.java

@@ -1,17 +1,19 @@
 package org.diylc.components.boards;
 
+import java.awt.AlphaComposite;
 import java.awt.BasicStroke;
 import java.awt.Color;
+import java.awt.Composite;
 import java.awt.Graphics2D;
 import java.awt.Point;
 
+import org.diylc.components.AbstractTransparentComponent;
 import org.diylc.core.ComponentState;
-import org.diylc.core.IDIYComponent;
 import org.diylc.core.Project;
 import org.diylc.core.annotations.EditableProperty;
 import org.diylc.utils.Constants;
 
-public abstract class AbstractBoard implements IDIYComponent<String> {
+public abstract class AbstractBoard extends AbstractTransparentComponent<String> {
 
 	private static final long serialVersionUID = 1L;
 
@@ -29,9 +31,15 @@ public abstract class AbstractBoard implements IDIYComponent<String> {
 	public void draw(Graphics2D g2d, ComponentState componentState, Project project) {
 		g2d.setStroke(new BasicStroke());
 		if (componentState != ComponentState.DRAGGING) {
+			Composite oldComposite = g2d.getComposite();
+			if (alpha < MAX_ALPHA) {
+				g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1f * alpha
+						/ MAX_ALPHA));
+			}
 			g2d.setColor(getBoardColor());
 			g2d.fillRect(controlPoints[0].x, controlPoints[0].y, controlPoints[1].x
 					- controlPoints[0].x, controlPoints[1].y - controlPoints[0].y);
+			g2d.setComposite(oldComposite);
 		}
 		g2d.setColor(getBorderColor());
 		g2d.drawRect(controlPoints[0].x, controlPoints[0].y, controlPoints[1].x

diy-layout-creator --username bancika@gmail.com/Library/src/org/diylc/components/boards/PerfBoard.java

@@ -1,7 +1,9 @@
 package org.diylc.components.boards;
 
+import java.awt.AlphaComposite;
 import java.awt.BasicStroke;
 import java.awt.Color;
+import java.awt.Composite;
 import java.awt.Graphics2D;
 import java.awt.Point;
 
@@ -43,6 +45,11 @@ public class PerfBoard extends AbstractBoard {
 		super.draw(g2d, componentState, project);
 
 		if (componentState != ComponentState.DRAGGING) {
+			Composite oldComposite = g2d.getComposite();
+			if (alpha < MAX_ALPHA) {
+				g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1f * alpha
+						/ MAX_ALPHA));
+			}
 			Point p = new Point(controlPoints[0]);
 			int radius = PAD_SIZE.convertToPixels() / 2;
 			int holeRadius = HOLE_SIZE.convertToPixels() / 2;
@@ -61,6 +68,7 @@ public class PerfBoard extends AbstractBoard {
 									holeRadius * 2);
 				}
 			}
+			g2d.setComposite(oldComposite);
 		}
 		// System.err.println("OldDraw: " + (System.nanoTime() - t));
 	}

diy-layout-creator --username bancika@gmail.com/Library/src/org/diylc/components/boards/VeroBoard.java

@@ -0,0 +1,140 @@
+package org.diylc.components.boards;
+
+import java.awt.AlphaComposite;
+import java.awt.Color;
+import java.awt.Composite;
+import java.awt.Graphics2D;
+import java.awt.Point;
+
+import org.diylc.core.ComponentLayer;
+import org.diylc.core.ComponentState;
+import org.diylc.core.Project;
+import org.diylc.core.annotations.ComponentDescriptor;
+import org.diylc.core.measures.Size;
+import org.diylc.core.measures.SizeUnit;
+import org.diylc.utils.Constants;
+
+@ComponentDescriptor(name = "Vero Board", category = "Boards", author = "Branislav Stojkovic", componentLayer = ComponentLayer.BOARD, instanceNamePrefix = "B", desciption = "Perforated FR4 board with solder pads spaced 0.1 inch apart")
+public class VeroBoard extends AbstractBoard {
+
+	private static final long serialVersionUID = 1L;
+
+	public static Color BOARD_COLOR = Color.decode("#BCED91");
+	public static Color COPPER_COLOR = Color.decode("#B87333");
+	public static Color BORDER_COLOR = BOARD_COLOR.darker();
+
+	private static Size SPACING = new Size(0.1d, SizeUnit.in);
+	private static Size STRIP_SIZE = new Size(0.085d, SizeUnit.in);
+	private static Size HOLE_SIZE = new Size(0.8d, SizeUnit.mm);
+
+	// private Area copperArea;
+
+	@Override
+	public void draw(Graphics2D g2d, ComponentState componentState, Project project) {
+		// long t = System.nanoTime();
+		// Area copperArea = getCopperArea();
+		// System.err.println("Calc: " + (System.nanoTime() - t));
+		// t = System.nanoTime();
+		// super.draw(g2d, componentState, project);
+		// g2d.setColor(COPPER_COLOR);
+		// g2d.fill(copperArea);
+		// System.err.println("   Draw: " + (System.nanoTime() - t));
+
+		// long t = System.nanoTime();
+		super.draw(g2d, componentState, project);
+
+		if (componentState != ComponentState.DRAGGING) {
+			Composite oldComposite = g2d.getComposite();
+			if (alpha < MAX_ALPHA) {
+				g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 1f * alpha
+						/ MAX_ALPHA));
+			}
+			Point p = new Point(controlPoints[0]);
+			int stripSize = STRIP_SIZE.convertToPixels();
+			int holeRadius = HOLE_SIZE.convertToPixels() / 2;
+
+			while (p.y < controlPoints[1].y - SPACING.convertToPixels()) {
+				p.x = controlPoints[0].x;
+				p.y += SPACING.convertToPixels();
+				g2d.setColor(COPPER_COLOR);
+				g2d.fillRect(p.x + SPACING.convertToPixels() / 2, p.y - stripSize / 2,
+						controlPoints[1].x - SPACING.convertToPixels() - p.x, stripSize);
+				while (p.x < controlPoints[1].x - SPACING.convertToPixels()) {
+					p.x += SPACING.convertToPixels();
+					g2d.setColor(Constants.CANVAS_COLOR);
+					g2d
+							.fillOval(p.x - holeRadius, p.y - holeRadius, holeRadius * 2,
+									holeRadius * 2);
+				}
+			}
+			g2d.setComposite(oldComposite);
+		}
+		// System.err.println("OldDraw: " + (System.nanoTime() - t));
+	}
+
+	// @Override
+	// public void setControlPoint(Point point, int index) {
+	// // Reset copper area if a control point is changed.
+	// if (!point.equals(getControlPoint(index))) {
+	// copperArea = null;
+	// }
+	// super.setControlPoint(point, index);
+	// }
+	//
+	// public Area getCopperArea() {
+	// if (copperArea == null) {
+	// copperArea = new Area();
+	//
+	// int holeRadius = HOLE_SIZE.convertToPixels() / 2;
+	// int radius = PAD_SIZE.convertToPixels() / 2;
+	// int spacing = SPACING.convertToPixels();
+	//
+	// // Create a pad.
+	// Area pad = new Area(new Ellipse2D.Double(-radius, -radius, radius * 2,
+	// radius * 2));
+	// pad.subtract(new Area(new Ellipse2D.Double(-holeRadius, -holeRadius,
+	// holeRadius * 2,
+	// holeRadius * 2)));
+	//
+	// // Create a row duplicating the pad.
+	// Area row = new Area();
+	// int columnCount = (controlPoints[1].x - controlPoints[0].x) / spacing -
+	// 1;
+	// int rowCount = (controlPoints[1].y - controlPoints[0].y) / spacing - 1;
+	//
+	// AffineTransform xTransform =
+	// AffineTransform.getTranslateInstance(spacing, 0);
+	// for (int i = 0; i < columnCount; i++) {
+	// pad.transform(xTransform);
+	// row.add(pad);
+	// }
+	//
+	// // Create the whole matrix duplicating the row.
+	// AffineTransform yTransform = AffineTransform.getTranslateInstance(0,
+	// spacing);
+	// for (int i = 0; i < rowCount; i++) {
+	// row.transform(yTransform);
+	// copperArea.add(row);
+	// }
+	//
+	// copperArea.transform(AffineTransform.getTranslateInstance(controlPoints[0].x,
+	// controlPoints[0].y));
+	// }
+	// return copperArea;
+	// }
+
+	@Override
+	protected Color getBoardColor() {
+		return BOARD_COLOR;
+	}
+
+	@Override
+	protected Color getBorderColor() {
+		return BORDER_COLOR;
+	}
+
+	@Override
+	public void drawIcon(Graphics2D g2d, int width, int height) {
+
+	}
+}

diy-layout-creator --username bancika@gmail.com/Library/src/org/diylc/components/electromechanical/MiniToggleSwitch.java

@@ -1,14 +1,16 @@
 package org.diylc.components.electromechanical;
 
+import java.awt.AlphaComposite;
 import java.awt.BasicStroke;
 import java.awt.Color;
+import java.awt.Composite;
 import java.awt.Graphics2D;
 import java.awt.Point;
 import java.awt.geom.RoundRectangle2D;
 
+import org.diylc.components.AbstractTransparentComponent;
 import org.diylc.core.ComponentLayer;
 import org.diylc.core.ComponentState;
-import org.diylc.core.IDIYComponent;
 import org.diylc.core.Project;
 import org.diylc.core.annotations.ComponentDescriptor;
 import org.diylc.core.annotations.EditableProperty;
@@ -16,7 +18,7 @@ import org.diylc.core.measures.Size;
 import org.diylc.core.measures.SizeUnit;
 
 @ComponentDescriptor(name = "Mini Toggle Switch", category = "Electromechanical", author = "Branislav Stojkovic", desciption = "", stretchable = false, componentLayer = ComponentLayer.COMPONENT, instanceNamePrefix = "SW")
-public class MiniToggleSwitch implements IDIYComponent<ToggleSwitchType> {
+public class MiniToggleSwitch extends AbstractTransparentComponent<ToggleSwitchType> {
 
 	private static final long serialVersionUID = 1L;
 
@@ -163,8 +165,14 @@ public class MiniToggleSwitch implements IDIYComponent<ToggleSwitchType> {
 	public void draw(Graphics2D g2d, ComponentState componentState, Project project) {
 		if (body != null) {
 			if (componentState != ComponentState.DRAGGING) {
+				Composite oldComposite = g2d.getComposite();
+				if (alpha < MAX_ALPHA) {
+					g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
+							1f * alpha / MAX_ALPHA));
+				}
 				g2d.setColor(BODY_COLOR);
 				g2d.fill(body);
+				g2d.setComposite(oldComposite);
 			}
 			g2d.setStroke(new BasicStroke());
 			g2d.setColor(BORDER_COLOR);

diy-layout-creator --username bancika@gmail.com/Library/src/org/diylc/components/semiconductors/DIL_IC.java

@@ -1,15 +1,17 @@
 package org.diylc.components.semiconductors;
 
+import java.awt.AlphaComposite;
 import java.awt.BasicStroke;
 import java.awt.Color;
+import java.awt.Composite;
 import java.awt.FontMetrics;
 import java.awt.Graphics2D;
 import java.awt.Point;
 import java.awt.geom.Rectangle2D;
 
 import org.diylc.common.Orientation;
+import org.diylc.components.AbstractTransparentComponent;
 import org.diylc.core.ComponentState;
-import org.diylc.core.IDIYComponent;
 import org.diylc.core.Project;
 import org.diylc.core.annotations.ComponentDescriptor;
 import org.diylc.core.annotations.EditableProperty;
@@ -18,7 +20,7 @@ import org.diylc.core.measures.SizeUnit;
 import org.diylc.utils.Constants;
 
 @ComponentDescriptor(name = "DIL IC", author = "Branislav Stojkovic", category = "Semiconductors", instanceNamePrefix = "IC", desciption = "test", stretchable = false)
-public class DIL_IC implements IDIYComponent<String> {
+public class DIL_IC extends AbstractTransparentComponent<String> {
 
 	private static final long serialVersionUID = 1L;
 
@@ -166,8 +168,14 @@ public class DIL_IC implements IDIYComponent<String> {
 			y -= height - Constants.GRID;
 		}
 		if (componentState != ComponentState.DRAGGING) {
+			Composite oldComposite = g2d.getComposite();
+			if (alpha < MAX_ALPHA) {
+				g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER,
+						1f * alpha / MAX_ALPHA));
+			}
 			g2d.setColor(BODY_COLOR);
 			g2d.fillRoundRect(x, y, width, height, EDGE_RADIUS, EDGE_RADIUS);
+			g2d.setComposite(oldComposite);
 		}
 		g2d.setColor(BORDER_COLOR);
 		g2d.setStroke(new BasicStroke());