diff options
Diffstat (limited to 'src/com/android/gallery3d/ui/EdgeView.java')
-rw-r--r-- | src/com/android/gallery3d/ui/EdgeView.java | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/src/com/android/gallery3d/ui/EdgeView.java b/src/com/android/gallery3d/ui/EdgeView.java deleted file mode 100644 index 051de18fa..000000000 --- a/src/com/android/gallery3d/ui/EdgeView.java +++ /dev/null @@ -1,132 +0,0 @@ -/* - * 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.gallery3d.ui; - -import android.content.Context; -import android.opengl.Matrix; - -import com.android.gallery3d.glrenderer.GLCanvas; - -// EdgeView draws EdgeEffect (blue glow) at four sides of the view. -public class EdgeView extends GLView { - @SuppressWarnings("unused") - private static final String TAG = "EdgeView"; - - public static final int INVALID_DIRECTION = -1; - public static final int TOP = 0; - public static final int LEFT = 1; - public static final int BOTTOM = 2; - public static final int RIGHT = 3; - - // Each edge effect has a transform matrix, and each matrix has 16 elements. - // We put all the elements in one array. These constants specify the - // starting index of each matrix. - private static final int TOP_M = TOP * 16; - private static final int LEFT_M = LEFT * 16; - private static final int BOTTOM_M = BOTTOM * 16; - private static final int RIGHT_M = RIGHT * 16; - - private EdgeEffect[] mEffect = new EdgeEffect[4]; - private float[] mMatrix = new float[4 * 16]; - - public EdgeView(Context context) { - for (int i = 0; i < 4; i++) { - mEffect[i] = new EdgeEffect(context); - } - } - - @Override - protected void onLayout( - boolean changeSize, int left, int top, int right, int bottom) { - if (!changeSize) return; - - int w = right - left; - int h = bottom - top; - for (int i = 0; i < 4; i++) { - if ((i & 1) == 0) { // top or bottom - mEffect[i].setSize(w, h); - } else { // left or right - mEffect[i].setSize(h, w); - } - } - - // Set up transforms for the four edges. Without transforms an - // EdgeEffect draws the TOP edge from (0, 0) to (w, Y * h) where Y - // is some factor < 1. For other edges we need to move, rotate, and - // flip the effects into proper places. - Matrix.setIdentityM(mMatrix, TOP_M); - Matrix.setIdentityM(mMatrix, LEFT_M); - Matrix.setIdentityM(mMatrix, BOTTOM_M); - Matrix.setIdentityM(mMatrix, RIGHT_M); - - Matrix.rotateM(mMatrix, LEFT_M, 90, 0, 0, 1); - Matrix.scaleM(mMatrix, LEFT_M, 1, -1, 1); - - Matrix.translateM(mMatrix, BOTTOM_M, 0, h, 0); - Matrix.scaleM(mMatrix, BOTTOM_M, 1, -1, 1); - - Matrix.translateM(mMatrix, RIGHT_M, w, 0, 0); - Matrix.rotateM(mMatrix, RIGHT_M, 90, 0, 0, 1); - } - - @Override - protected void render(GLCanvas canvas) { - super.render(canvas); - boolean more = false; - for (int i = 0; i < 4; i++) { - canvas.save(GLCanvas.SAVE_FLAG_MATRIX); - canvas.multiplyMatrix(mMatrix, i * 16); - more |= mEffect[i].draw(canvas); - canvas.restore(); - } - if (more) { - invalidate(); - } - } - - // Called when the content is pulled away from the edge. - // offset is in pixels. direction is one of {TOP, LEFT, BOTTOM, RIGHT}. - public void onPull(int offset, int direction) { - int fullLength = ((direction & 1) == 0) ? getWidth() : getHeight(); - mEffect[direction].onPull((float)offset / fullLength); - if (!mEffect[direction].isFinished()) { - invalidate(); - } - } - - // Call when the object is released after being pulled. - public void onRelease() { - boolean more = false; - for (int i = 0; i < 4; i++) { - mEffect[i].onRelease(); - more |= !mEffect[i].isFinished(); - } - if (more) { - invalidate(); - } - } - - // Call when the effect absorbs an impact at the given velocity. - // Used when a fling reaches the scroll boundary. velocity is in pixels - // per second. direction is one of {TOP, LEFT, BOTTOM, RIGHT}. - public void onAbsorb(int velocity, int direction) { - mEffect[direction].onAbsorb(velocity); - if (!mEffect[direction].isFinished()) { - invalidate(); - } - } -} |