diff --git a/diylc/diylc-library/src/org/diylc/components/semiconductors/SIL_IC.java b/diylc/diylc-library/src/org/diylc/components/semiconductors/SIL_IC.java
index 74122b27..0d0371ff 100644
--- a/diylc/diylc-library/src/org/diylc/components/semiconductors/SIL_IC.java
+++ b/diylc/diylc-library/src/org/diylc/components/semiconductors/SIL_IC.java
@@ -18,6 +18,7 @@ import org.diylc.common.IPlugInPort;
 import org.diylc.common.ObjectCache;
 import org.diylc.common.Orientation;
 import org.diylc.components.AbstractTransparentComponent;
+import org.diylc.components.transform.SIL_ICTransformer;
 import org.diylc.core.ComponentState;
 import org.diylc.core.IDIYComponent;
 import org.diylc.core.IDrawingObserver;
@@ -33,7 +34,7 @@ import org.diylc.utils.Constants;
 
 @ComponentDescriptor(name = "SIP IC", author = "Branislav Stojkovic", category = "Semiconductors",
     instanceNamePrefix = "IC", description = "Single-in-line package IC", stretchable = false,
-    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE)
+    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = SIL_ICTransformer.class)
 public class SIL_IC extends AbstractTransparentComponent<String> {
 
   private static final long serialVersionUID = 1L;
diff --git a/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO1.java b/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO1.java
index 093ec6bb..32507478 100644
--- a/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO1.java
+++ b/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO1.java
@@ -18,6 +18,7 @@ import org.diylc.common.IPlugInPort;
 import org.diylc.common.ObjectCache;
 import org.diylc.common.Orientation;
 import org.diylc.components.AbstractTransparentComponent;
+import org.diylc.components.transform.TO1Transformer;
 import org.diylc.core.ComponentState;
 import org.diylc.core.IDIYComponent;
 import org.diylc.core.IDrawingObserver;
@@ -33,7 +34,7 @@ import org.diylc.utils.Constants;
 
 @ComponentDescriptor(name = "Transistor (TO-1 package)", author = "Branislav Stojkovic", category = "Semiconductors",
     instanceNamePrefix = "Q", description = "Transistor with small metal body", stretchable = false,
-    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE)
+    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = TO1Transformer.class)
 public class TransistorTO1 extends AbstractTransparentComponent<String> {
 
   private static final long serialVersionUID = 1L;
diff --git a/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO220.java b/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO220.java
index 8db8f603..f2d9bc58 100644
--- a/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO220.java
+++ b/diylc/diylc-library/src/org/diylc/components/semiconductors/TransistorTO220.java
@@ -18,6 +18,7 @@ import org.diylc.common.IPlugInPort;
 import org.diylc.common.ObjectCache;
 import org.diylc.common.Orientation;
 import org.diylc.components.AbstractTransparentComponent;
+import org.diylc.components.transform.TO220Transformer;
 import org.diylc.core.ComponentState;
 import org.diylc.core.IDIYComponent;
 import org.diylc.core.IDrawingObserver;
@@ -33,7 +34,7 @@ import org.diylc.utils.Constants;
 
 @ComponentDescriptor(name = "Transistor (TO-220 package)", author = "Branislav Stojkovic", category = "Semiconductors",
     instanceNamePrefix = "Q", description = "Transistors with metal tab for heat sink mounting", stretchable = false,
-    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE)
+    zOrder = IDIYComponent.COMPONENT, keywordPolicy = KeywordPolicy.SHOW_VALUE, transformer = TO220Transformer.class)
 public class TransistorTO220 extends AbstractTransparentComponent<String> {
 
   private static final long serialVersionUID = 1L;
diff --git a/diylc/diylc-library/src/org/diylc/components/transform/SIL_ICTransformer.java b/diylc/diylc-library/src/org/diylc/components/transform/SIL_ICTransformer.java
new file mode 100644
index 00000000..502ce59c
--- /dev/null
+++ b/diylc/diylc-library/src/org/diylc/components/transform/SIL_ICTransformer.java
@@ -0,0 +1,89 @@
+package org.diylc.components.transform;
+
+import java.awt.Point;
+import java.awt.geom.AffineTransform;
+
+import org.diylc.common.IComponentTransformer;
+import org.diylc.common.Orientation;
+import org.diylc.components.semiconductors.SIL_IC;
+import org.diylc.core.IDIYComponent;
+
+public class SIL_ICTransformer implements IComponentTransformer {
+
+  @Override
+  public boolean canRotate(IDIYComponent<?> component) {
+    return component.getClass().equals(SIL_IC.class);
+  }
+
+  @Override
+  public boolean canMirror(IDIYComponent<?> component) {
+    return component.getClass().equals(SIL_IC.class);
+  }
+
+  @Override
+  public boolean mirroringChangesCircuit() {
+    return true;
+  }
+
+  @Override
+  public void rotate(IDIYComponent<?> component, Point center, int direction) {
+    AffineTransform rotate = AffineTransform.getRotateInstance(Math.PI / 2 * direction, center.x, center.y);
+    for (int index = 0; index < component.getControlPointCount(); index++) {
+      Point p = new Point(component.getControlPoint(index));
+      rotate.transform(p, p);
+      component.setControlPoint(p, index);
+    }
+
+    SIL_IC ic = (SIL_IC) component;
+    Orientation o = ic.getOrientation();
+    int oValue = o.ordinal();
+    oValue += direction;
+    if (oValue < 0)
+      oValue = Orientation.values().length - 1;
+    if (oValue >= Orientation.values().length)
+      oValue = 0;
+    o = Orientation.values()[oValue];
+    ic.setOrientation(o);
+  }
+
+  @SuppressWarnings("incomplete-switch")
+  @Override
+  public void mirror(IDIYComponent<?> component, Point center, int direction) {
+    SIL_IC ic = (SIL_IC) component;
+    int dx = center.x - ic.getControlPoint(0).x;
+    int dy = center.y - ic.getControlPoint(0).y;
+    if (direction == IComponentTransformer.HORIZONTAL) {
+      Orientation o = ic.getOrientation();
+      switch (o) {
+        case _90:
+          o = Orientation._270;
+          break;
+        case _270:
+          o = Orientation._90;
+      }
+
+      for (int i = 0; i < ic.getControlPointCount(); i++) {
+        Point p = ic.getControlPoint(i);
+        ic.setControlPoint(new Point(p.x + 2 * dx, p.y), i);
+      }
+
+      ic.setOrientation(o);
+    } else {
+      Orientation o = ic.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          o = Orientation._180;
+          break;
+        case _180:
+          o = Orientation.DEFAULT;
+      }
+
+      for (int i = 0; i < ic.getControlPointCount(); i++) {
+        Point p = ic.getControlPoint(i);
+        ic.setControlPoint(new Point(p.x, p.y + 2 * dy), i);
+      }
+
+      ic.setOrientation(o);
+    }
+  }
+}
diff --git a/diylc/diylc-library/src/org/diylc/components/transform/TO1Transformer.java b/diylc/diylc-library/src/org/diylc/components/transform/TO1Transformer.java
new file mode 100644
index 00000000..f046d921
--- /dev/null
+++ b/diylc/diylc-library/src/org/diylc/components/transform/TO1Transformer.java
@@ -0,0 +1,104 @@
+package org.diylc.components.transform;
+
+import java.awt.Point;
+import java.awt.geom.AffineTransform;
+
+import org.diylc.common.IComponentTransformer;
+import org.diylc.common.Orientation;
+import org.diylc.components.semiconductors.TransistorTO1;
+import org.diylc.core.IDIYComponent;
+
+public class TO1Transformer implements IComponentTransformer {
+
+  @Override
+  public boolean canRotate(IDIYComponent<?> component) {
+    return component.getClass().equals(TransistorTO1.class);
+  }
+
+  @Override
+  public boolean canMirror(IDIYComponent<?> component) {
+    return component.getClass().equals(TransistorTO1.class);
+  }
+
+  @Override
+  public boolean mirroringChangesCircuit() {
+    return true;
+  }
+
+  @Override
+  public void rotate(IDIYComponent<?> component, Point center, int direction) {
+    AffineTransform rotate = AffineTransform.getRotateInstance(Math.PI / 2 * direction, center.x, center.y);
+    for (int index = 0; index < component.getControlPointCount(); index++) {
+      Point p = new Point(component.getControlPoint(index));
+      rotate.transform(p, p);
+      component.setControlPoint(p, index);
+    }
+
+    TransistorTO1 transistor = (TransistorTO1) component;
+    Orientation o = transistor.getOrientation();
+    int oValue = o.ordinal();
+    oValue += direction;
+    if (oValue < 0)
+      oValue = Orientation.values().length - 1;
+    if (oValue >= Orientation.values().length)
+      oValue = 0;
+    o = Orientation.values()[oValue];
+    transistor.setOrientation(o);
+  }
+
+  @Override
+  public void mirror(IDIYComponent<?> component, Point center, int direction) {
+    TransistorTO1 transistor = (TransistorTO1) component;
+    int dx = center.x - transistor.getControlPoint(0).x;
+    int dy = center.y - transistor.getControlPoint(0).y;
+    if (direction == IComponentTransformer.HORIZONTAL) {
+      Orientation o = transistor.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          o = Orientation._180;
+          break;
+        case _90:
+          dx -= (transistor.getControlPoint(1).x - transistor.getControlPoint(0).x);
+          break;
+        case _180:
+          o = Orientation.DEFAULT;
+          break;
+        case _270:
+          dx -= (transistor.getControlPoint(1).x - transistor.getControlPoint(0).x);
+          break;
+      }
+
+      for (int i = 0; i < transistor.getControlPointCount(); i++) {
+        Point p = transistor.getControlPoint(i);
+        transistor.setControlPoint(
+            new Point(p.x + 2 * dx, p.y + (transistor.getControlPoint(2).y - transistor.getControlPoint(0).y)), i);
+      }
+
+      transistor.setOrientation(o);
+    } else {
+      Orientation o = transistor.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          dy -= (transistor.getControlPoint(1).y - transistor.getControlPoint(0).y);
+          break;
+        case _90:
+          o = Orientation._270;
+          break;
+        case _180:
+          dy -= (transistor.getControlPoint(1).y - transistor.getControlPoint(0).y);
+          break;
+        case _270:
+          o = Orientation._90;
+          break;
+      }
+
+      for (int i = 0; i < transistor.getControlPointCount(); i++) {
+        Point p = transistor.getControlPoint(i);
+        transistor.setControlPoint(new Point(p.x + (transistor.getControlPoint(2).x - transistor.getControlPoint(0).x),
+            p.y + 2 * dy), i);
+      }
+
+      transistor.setOrientation(o);
+    }
+  }
+}
diff --git a/diylc/diylc-library/src/org/diylc/components/transform/TO220Transformer.java b/diylc/diylc-library/src/org/diylc/components/transform/TO220Transformer.java
new file mode 100644
index 00000000..e56decc1
--- /dev/null
+++ b/diylc/diylc-library/src/org/diylc/components/transform/TO220Transformer.java
@@ -0,0 +1,108 @@
+package org.diylc.components.transform;
+
+import java.awt.Point;
+import java.awt.geom.AffineTransform;
+
+import org.diylc.common.IComponentTransformer;
+import org.diylc.common.Orientation;
+import org.diylc.components.semiconductors.TransistorTO220;
+import org.diylc.core.IDIYComponent;
+
+public class TO220Transformer implements IComponentTransformer {
+
+  @Override
+  public boolean canRotate(IDIYComponent<?> component) {
+    return component.getClass().equals(TransistorTO220.class);
+  }
+
+  @Override
+  public boolean canMirror(IDIYComponent<?> component) {
+    return component.getClass().equals(TransistorTO220.class);
+  }
+
+  @Override
+  public boolean mirroringChangesCircuit() {
+    return true;
+  }
+
+  @Override
+  public void rotate(IDIYComponent<?> component, Point center, int direction) {
+    AffineTransform rotate = AffineTransform.getRotateInstance(Math.PI / 2 * direction, center.x, center.y);
+    for (int index = 0; index < component.getControlPointCount(); index++) {
+      Point p = new Point(component.getControlPoint(index));
+      rotate.transform(p, p);
+      component.setControlPoint(p, index);
+    }
+
+    TransistorTO220 transistor = (TransistorTO220) component;
+    Orientation o = transistor.getOrientation();
+    int oValue = o.ordinal();
+    oValue += direction;
+    if (oValue < 0)
+      oValue = Orientation.values().length - 1;
+    if (oValue >= Orientation.values().length)
+      oValue = 0;
+    o = Orientation.values()[oValue];
+    transistor.setOrientation(o);
+  }
+
+  @Override
+  public void mirror(IDIYComponent<?> component, Point center, int direction) {
+    TransistorTO220 transistor = (TransistorTO220) component;
+    if (direction == IComponentTransformer.HORIZONTAL) {
+      int dx = 2 * (center.x - transistor.getControlPoint(0).x);
+      int dy = 0;
+      Orientation o = transistor.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          o = Orientation._180;
+          dy -= (transistor.getControlPoint(0).y - transistor.getControlPoint(2).y);
+          break;
+        case _90:
+          dx += (transistor.getControlPoint(0).x - transistor.getControlPoint(2).x);
+          break;
+        case _180:
+          o = Orientation.DEFAULT;
+          dy -= (transistor.getControlPoint(0).y - transistor.getControlPoint(2).y);
+          break;
+        case _270:
+          dx += (transistor.getControlPoint(0).x - transistor.getControlPoint(2).x);
+          break;
+      }
+
+      for (int i = 0; i < transistor.getControlPointCount(); i++) {
+        Point p = transistor.getControlPoint(i);
+        transistor.setControlPoint(new Point(p.x + dx, p.y + dy), i);
+      }
+
+      transistor.setOrientation(o);
+    } else {
+      int dx = 0;
+      int dy = 2 * (center.y - transistor.getControlPoint(0).y);
+      Orientation o = transistor.getOrientation();
+      switch (o) {
+        case DEFAULT:
+          dy += (transistor.getControlPoint(0).y - transistor.getControlPoint(2).y);
+          break;
+        case _90:
+          dx -= (transistor.getControlPoint(0).x - transistor.getControlPoint(2).x);
+          o = Orientation._270;
+          break;
+        case _180:
+          dy += (transistor.getControlPoint(0).y - transistor.getControlPoint(2).y);
+          break;
+        case _270:
+          dx -= (transistor.getControlPoint(0).x - transistor.getControlPoint(2).x);
+          o = Orientation._90;
+          break;
+      }
+
+      for (int i = 0; i < transistor.getControlPointCount(); i++) {
+        Point p = transistor.getControlPoint(i);
+        transistor.setControlPoint(new Point(p.x + dx, p.y + dy), i);
+      }
+
+      transistor.setOrientation(o);
+    }
+  }
+}
diff --git a/diylc/diylc-swing/library/main.jar b/diylc/diylc-swing/library/main.jar
index 07f54a5a..c4ed7ee1 100644
Binary files a/diylc/diylc-swing/library/main.jar and b/diylc/diylc-swing/library/main.jar differ