1 files changed, 49 insertions, 0 deletions
diff --git a/java/src/com/android/inputmethod/keyboard/internal/AbstractDrawingPreview.java b/java/src/com/android/inputmethod/keyboard/internal/AbstractDrawingPreview.java
new file mode 100644
index 000000000..8a3f0645f
--- /dev/null
+++ b/java/src/com/android/inputmethod/keyboard/internal/AbstractDrawingPreview.java
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2012 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.inputmethod.keyboard.internal;
+
+import android.graphics.Canvas;
+
+import com.android.inputmethod.keyboard.PointerTracker;
+
+/**
+ * Abstract base class for previews that are drawn on PreviewPlacerView, e.g.,
+ * GestureFloatingPrevewText, GestureTrail, and SlidingKeyInputPreview.
+ */
+public abstract class AbstractDrawingPreview {
+    private boolean mPreviewEnabled;
+
+    public void setPreviewEnabled(final boolean enabled) {
+        mPreviewEnabled = enabled;
+    }
+
+    public boolean isPreviewEnabled() {
+        return mPreviewEnabled;
+    }
+
+    /**
+     * Draws the preview
+     * @param canvas The canvas where the preview is drawn.
+     */
+    public abstract void onDraw(final Canvas canvas);
+
+    /**
+     * Set the position of the preview.
+     * @param pt The new location of the preview is based on the points in PointerTracker pt.
+     */
+    public abstract void setPreviewPosition(final PointerTracker pt);
+}