1 files changed, 89 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/ui/SelectionDrawer.java b/src/com/android/gallery3d/ui/SelectionDrawer.java
new file mode 100644
index 000000000..2655a221c
--- /dev/null
+++ b/src/com/android/gallery3d/ui/SelectionDrawer.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2010 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.gallery3d.ui;
+
+import com.android.gallery3d.common.Utils;
+import com.android.gallery3d.data.Path;
+
+import android.graphics.Rect;
+
+/**
+ * Drawer class responsible for drawing selectable frame.
+ */
+public abstract class SelectionDrawer {
+    public static final int DATASOURCE_TYPE_NOT_CATEGORIZED = 0;
+    public static final int DATASOURCE_TYPE_LOCAL = 1;
+    public static final int DATASOURCE_TYPE_PICASA = 2;
+    public static final int DATASOURCE_TYPE_MTP = 3;
+    public static final int DATASOURCE_TYPE_CAMERA = 4;
+
+    public abstract void prepareDrawing();
+    public abstract void draw(GLCanvas canvas, Texture content,
+            int width, int height, int rotation, Path path,
+            int topIndex, int dataSourceType, int mediaType,
+            boolean wantCache, boolean isCaching);
+    public abstract void drawFocus(GLCanvas canvas, int width, int height);
+
+    public void draw(GLCanvas canvas, Texture content, int width, int height,
+            int rotation, Path path, int mediaType) {
+        draw(canvas, content, width, height, rotation, path, 0,
+                DATASOURCE_TYPE_NOT_CATEGORIZED, mediaType,
+                false, false);
+    }
+
+    public static void drawWithRotation(GLCanvas canvas, Texture content,
+            int x, int y, int width, int height, int rotation) {
+        if (rotation != 0) {
+            canvas.save(GLCanvas.SAVE_FLAG_MATRIX);
+            canvas.rotate(rotation, 0, 0, 1);
+        }
+
+        content.draw(canvas, x, y, width, height);
+
+        if (rotation != 0) {
+            canvas.restore();
+        }
+    }
+
+    public static void drawWithRotationAndGray(GLCanvas canvas, Texture content,
+                int x, int y, int width, int height, int rotation,
+                int topIndex) {
+        if (rotation != 0) {
+            canvas.save(GLCanvas.SAVE_FLAG_MATRIX);
+            canvas.rotate(rotation, 0, 0, 1);
+        }
+
+        if (topIndex > 0 && (content instanceof BasicTexture)) {
+            float ratio = Utils.clamp(0.3f + 0.2f * topIndex, 0f, 1f);
+            canvas.drawMixed((BasicTexture) content, 0xFF222222, ratio,
+                    x, y, width, height);
+        } else {
+            content.draw(canvas, x, y, width, height);
+        }
+
+        if (rotation != 0) {
+            canvas.restore();
+        }
+    }
+
+    public static void drawFrame(GLCanvas canvas, NinePatchTexture frame,
+            int x, int y, int width, int height) {
+        Rect p = frame.getPaddings();
+        frame.draw(canvas, x - p.left, y - p.top, width + p.left + p.right,
+                 height + p.top + p.bottom);
+    }
+}