1 files changed, 72 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/ui/ErrorImageComposite.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/ui/ErrorImageComposite.java
new file mode 100644
index 000000000..7085e5d50
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/ui/ErrorImageComposite.java
@@ -0,0 +1,72 @@
+package com.android.ide.eclipse.adt.internal.editors.ui;
+
+import static org.eclipse.ui.ISharedImages.IMG_DEC_FIELD_ERROR;
+import static org.eclipse.ui.ISharedImages.IMG_DEC_FIELD_WARNING;
+import static org.eclipse.ui.ISharedImages.IMG_OBJS_ERROR_TSK;
+import static org.eclipse.ui.ISharedImages.IMG_OBJS_WARN_TSK;
+
+import org.eclipse.jface.resource.CompositeImageDescriptor;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.DecorationOverlayIcon;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.ui.ISharedImages;
+import org.eclipse.ui.PlatformUI;
+
+/**
+ * ImageDescriptor that adds a error marker.
+ * Based on {@link DecorationOverlayIcon} only available in Eclipse 3.3
+ */
+public class ErrorImageComposite extends CompositeImageDescriptor {
+
+    private Image mBaseImage;
+    private ImageDescriptor mErrorImageDescriptor;
+    private Point mSize;
+
+    /**
+     * Creates a new {@link ErrorImageComposite}
+     *
+     * @param baseImage the base image to overlay an icon on top of
+     */
+    public ErrorImageComposite(Image baseImage) {
+        this(baseImage, false);
+    }
+
+    /**
+     * Creates a new {@link ErrorImageComposite}
+     *
+     * @param baseImage the base image to overlay an icon on top of
+     * @param warning if true, add a warning icon, otherwise an error icon
+     */
+    public ErrorImageComposite(Image baseImage, boolean warning) {
+        mBaseImage = baseImage;
+        ISharedImages sharedImages = PlatformUI.getWorkbench().getSharedImages();
+        mErrorImageDescriptor = sharedImages.getImageDescriptor(
+                warning ? IMG_DEC_FIELD_WARNING : IMG_DEC_FIELD_ERROR);
+        if (mErrorImageDescriptor == null) {
+            mErrorImageDescriptor = sharedImages.getImageDescriptor(
+                    warning ? IMG_OBJS_WARN_TSK : IMG_OBJS_ERROR_TSK);
+        }
+        mSize = new Point(baseImage.getBounds().width, baseImage.getBounds().height);
+    }
+
+    @Override
+    protected void drawCompositeImage(int width, int height) {
+        ImageData baseData = mBaseImage.getImageData();
+        drawImage(baseData, 0, 0);
+
+        ImageData overlayData = mErrorImageDescriptor.getImageData();
+        if (overlayData.width == baseData.width && overlayData.height == baseData.height) {
+            overlayData = overlayData.scaledTo(14, 14);
+            drawImage(overlayData, -3, mSize.y - overlayData.height + 3);
+        } else {
+            drawImage(overlayData, 0, mSize.y - overlayData.height);
+        }
+    }
+
+    @Override
+    protected Point getSize() {
+        return mSize;
+    }
+}