Improvements to the multi-configuration layout

This adds a new layout algorithm which tries to do a more optimal fit
if all the configuration previews can fit on the current screen
without scrolling. (However, it still doesn't scale up these previews
to fit all available space, that's coming in a later CL).

It also delays rendering previews and performing layout until the
layout is actually painted, and improves the error rendering a bit.
It's also more deliberate in how preview renderings are scheduled,
performing them in visual order etc.

There's a new brief animation when you switch to a preview.

Finally, there are some preview zoom controls now.

Change-Id: Iea503a3fd57dfcaea7656e47b946bfcfea3eecb1

1 files changed, 7 insertions, 1 deletions

diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ImageUtils.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ImageUtils.java
index aeafa6de1..b5bc9aa72 100644
--- a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ImageUtils.java
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/gle2/ImageUtils.java
@@ -671,8 +671,14 @@ public class ImageUtils {
                 null);
     }
 
+    /**
+     * Reads the given image from the plugin folder
+     *
+     * @param name the name of the image (including file extension)
+     * @return the corresponding image, or null if something goes wrong
+     */
     @Nullable
-    private static BufferedImage readImage(@NonNull String name) {
+    public static BufferedImage readImage(@NonNull String name) {
         InputStream stream = ImageUtils.class.getResourceAsStream("/icons/" + name); //$NON-NLS-1$
         if (stream != null) {
             try {