1 files changed, 89 insertions, 0 deletions
diff --git a/src/com/vaadin/shared/ui/AlignmentInfo.java b/src/com/vaadin/shared/ui/AlignmentInfo.java
new file mode 100644
index 0000000000..ff800de646
--- /dev/null
+++ b/src/com/vaadin/shared/ui/AlignmentInfo.java
@@ -0,0 +1,89 @@
+/* 
+@VaadinApache2LicenseForJavaFiles@
+ */
+
+package com.vaadin.shared.ui;
+
+public final class AlignmentInfo {
+    /** Bitmask values for client server communication */
+    public static class Bits {
+        public static final int ALIGNMENT_LEFT = 1;
+        public static final int ALIGNMENT_RIGHT = 2;
+        public static final int ALIGNMENT_TOP = 4;
+        public static final int ALIGNMENT_BOTTOM = 8;
+        public static final int ALIGNMENT_HORIZONTAL_CENTER = 16;
+        public static final int ALIGNMENT_VERTICAL_CENTER = 32;
+    }
+
+    public static final AlignmentInfo LEFT = new AlignmentInfo(
+            Bits.ALIGNMENT_LEFT);
+    public static final AlignmentInfo RIGHT = new AlignmentInfo(
+            Bits.ALIGNMENT_RIGHT);
+    public static final AlignmentInfo TOP = new AlignmentInfo(
+            Bits.ALIGNMENT_TOP);
+    public static final AlignmentInfo BOTTOM = new AlignmentInfo(
+            Bits.ALIGNMENT_BOTTOM);
+    public static final AlignmentInfo CENTER = new AlignmentInfo(
+            Bits.ALIGNMENT_HORIZONTAL_CENTER);
+    public static final AlignmentInfo MIDDLE = new AlignmentInfo(
+            Bits.ALIGNMENT_VERTICAL_CENTER);
+    public static final AlignmentInfo TOP_LEFT = new AlignmentInfo(
+            Bits.ALIGNMENT_TOP + Bits.ALIGNMENT_LEFT);
+
+    private final int bitMask;
+
+    public AlignmentInfo(int bitMask) {
+        this.bitMask = bitMask;
+    }
+
+    public AlignmentInfo(AlignmentInfo horizontal, AlignmentInfo vertical) {
+        this(horizontal.getBitMask() + vertical.getBitMask());
+    }
+
+    public int getBitMask() {
+        return bitMask;
+    }
+
+    public boolean isTop() {
+        return (bitMask & Bits.ALIGNMENT_TOP) == Bits.ALIGNMENT_TOP;
+    }
+
+    public boolean isBottom() {
+        return (bitMask & Bits.ALIGNMENT_BOTTOM) == Bits.ALIGNMENT_BOTTOM;
+    }
+
+    public boolean isLeft() {
+        return (bitMask & Bits.ALIGNMENT_LEFT) == Bits.ALIGNMENT_LEFT;
+    }
+
+    public boolean isRight() {
+        return (bitMask & Bits.ALIGNMENT_RIGHT) == Bits.ALIGNMENT_RIGHT;
+    }
+
+    public boolean isVerticalCenter() {
+        return (bitMask & Bits.ALIGNMENT_VERTICAL_CENTER) == Bits.ALIGNMENT_VERTICAL_CENTER;
+    }
+
+    public boolean isHorizontalCenter() {
+        return (bitMask & Bits.ALIGNMENT_HORIZONTAL_CENTER) == Bits.ALIGNMENT_HORIZONTAL_CENTER;
+    }
+
+    public String getVerticalAlignment() {
+        if (isBottom()) {
+            return "bottom";
+        } else if (isVerticalCenter()) {
+            return "middle";
+        }
+        return "top";
+    }
+
+    public String getHorizontalAlignment() {
+        if (isRight()) {
+            return "right";
+        } else if (isHorizontalCenter()) {
+            return "center";
+        }
+        return "left";
+    }
+
+}