LayoutLib: fix XmlUtils.convertValueToInt

It looks like the device implementation of Integer.parseInt
is able to handle converting hexa value > 80000000 while the
desktop VM cannot.

This patch provide a fix for this.

While implementing it and running the TestDegates test I realized
that some delegate methods for Region were mising, so this adds them
too.

Change-Id: Ifee1efd47c8c52adc2f4658ec4fc8bd55adb84b4
diff --git a/bridge/src/android/graphics/Region_Delegate.java b/bridge/src/android/graphics/Region_Delegate.java
index bc13b52..33c2aed 100644
--- a/bridge/src/android/graphics/Region_Delegate.java
+++ b/bridge/src/android/graphics/Region_Delegate.java
@@ -135,6 +135,123 @@
 
     // ---- native methods ----
 
+    /*package*/ static boolean isEmpty(Region thisRegion) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return true;
+        }
+
+        return regionDelegate.mArea.isEmpty();
+    }
+
+    /*package*/ static boolean isRect(Region thisRegion) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return true;
+        }
+
+        return regionDelegate.mArea.isRectangular();
+    }
+
+    /*package*/ static boolean isComplex(Region thisRegion) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return true;
+        }
+
+        return regionDelegate.mArea.isSingular() == false;
+    }
+
+    /*package*/ static boolean contains(Region thisRegion, int x, int y) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return false;
+        }
+
+        return regionDelegate.mArea.contains(x, y);
+    }
+
+    /*package*/ static boolean quickContains(Region thisRegion,
+            int left, int top, int right, int bottom) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return false;
+        }
+
+        return regionDelegate.mArea.isRectangular() &&
+                regionDelegate.mArea.contains(left, top, right - left, bottom - top);
+    }
+
+    /*package*/ static boolean quickReject(Region thisRegion,
+            int left, int top, int right, int bottom) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return false;
+        }
+
+        return regionDelegate.mArea.isEmpty() ||
+                regionDelegate.mArea.intersects(left, top, right - left, bottom - top) == false;
+    }
+
+    /*package*/ static boolean quickReject(Region thisRegion, Region rgn) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return false;
+        }
+
+        Region_Delegate targetRegionDelegate = sManager.getDelegate(rgn.mNativeRegion);
+        if (targetRegionDelegate == null) {
+            return false;
+        }
+
+        return regionDelegate.mArea.isEmpty() ||
+                regionDelegate.mArea.getBounds().intersects(
+                        targetRegionDelegate.mArea.getBounds()) == false;
+
+    }
+
+    /*package*/ static void translate(Region thisRegion, int dx, int dy, Region dst) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return;
+        }
+
+        Region_Delegate targetRegionDelegate = sManager.getDelegate(dst.mNativeRegion);
+        if (targetRegionDelegate == null) {
+            return;
+        }
+
+        if (regionDelegate.mArea.isEmpty()) {
+            targetRegionDelegate.mArea = new Area();
+        } else {
+            targetRegionDelegate.mArea = new Area(regionDelegate.mArea);
+            AffineTransform mtx = new AffineTransform();
+            mtx.translate(dx, dy);
+            targetRegionDelegate.mArea.transform(mtx);
+        }
+    }
+
+    /*package*/ static void scale(Region thisRegion, float scale, Region dst) {
+        Region_Delegate regionDelegate = sManager.getDelegate(thisRegion.mNativeRegion);
+        if (regionDelegate == null) {
+            return;
+        }
+
+        Region_Delegate targetRegionDelegate = sManager.getDelegate(dst.mNativeRegion);
+        if (targetRegionDelegate == null) {
+            return;
+        }
+
+        if (regionDelegate.mArea.isEmpty()) {
+            targetRegionDelegate.mArea = new Area();
+        } else {
+            targetRegionDelegate.mArea = new Area(regionDelegate.mArea);
+            AffineTransform mtx = new AffineTransform();
+            mtx.scale(scale, scale);
+            targetRegionDelegate.mArea.transform(mtx);
+        }
+    }
+
     /*package*/ static int nativeConstructor() {
         Region_Delegate newDelegate = new Region_Delegate();
         return sManager.addDelegate(newDelegate);
diff --git a/bridge/src/com/android/internal/util/XmlUtils_Delegate.java b/bridge/src/com/android/internal/util/XmlUtils_Delegate.java
new file mode 100644
index 0000000..84a90cd
--- /dev/null
+++ b/bridge/src/com/android/internal/util/XmlUtils_Delegate.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.internal.util;
+
+
+/**
+ * Delegate used to provide new implementation of a select few methods of {@link XmlUtils}
+ *
+ * Through the layoutlib_create tool, the original  methods of XmlUtils have been replaced
+ * by calls to methods of the same name in this delegate class.
+ *
+ */
+public class XmlUtils_Delegate {
+    /*package*/ static final int convertValueToInt(CharSequence charSeq, int defaultValue) {
+        if (null == charSeq)
+            return defaultValue;
+
+        String nm = charSeq.toString();
+
+        // This code is copied from the original implementation. The issue is that
+        // The Dalvik libraries are able to handle Integer.parse("XXXXXXXX", 16) where XXXXXXX
+        // is > 80000000 but the Java VM cannot.
+
+        int value;
+        int sign = 1;
+        int index = 0;
+        int len = nm.length();
+        int base = 10;
+
+        if ('-' == nm.charAt(0)) {
+            sign = -1;
+            index++;
+        }
+
+        if ('0' == nm.charAt(index)) {
+            //  Quick check for a zero by itself
+            if (index == (len - 1))
+                return 0;
+
+            char    c = nm.charAt(index + 1);
+
+            if ('x' == c || 'X' == c) {
+                index += 2;
+                base = 16;
+            } else {
+                index++;
+                base = 8;
+            }
+        }
+        else if ('#' == nm.charAt(index))
+        {
+            index++;
+            base = 16;
+
+            return ((int)Long.parseLong(nm.substring(index), base)) * sign;
+        }
+
+        return Integer.parseInt(nm.substring(index), base) * sign;
+    }
+}