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/*
* 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.camera.ui;
import android.graphics.Matrix;
import android.view.MotionEvent;
import javax.microedition.khronos.opengles.GL11;
class RotatePane extends GLView {
public static final int UP = 0;
public static final int RIGHT = 1;
public static final int DOWN = 2;
public static final int LEFT = 3;
private int mOrientation = 0;
private GLView mChild;
@Override
protected void onLayout(
boolean change, int left, int top, int right, int bottom) {
int width = right - left;
int height = bottom - top;
switch (mOrientation) {
case UP:
case DOWN:
mChild.layout(0, 0, width, height);
break;
case LEFT:
case RIGHT:
mChild.layout(0, 0, height, width);
break;
}
}
@Override
protected void onMeasure(int widthSpec, int heightSpec) {
GLView c = mChild;
switch(mOrientation) {
case UP:
case DOWN:
c.measure(widthSpec, heightSpec);
setMeasuredSize(c.getMeasuredWidth(), c.getMeasuredHeight());
break;
case LEFT:
case RIGHT:
mChild.measure(heightSpec, widthSpec);
setMeasuredSize(c.getMeasuredHeight(), c.getMeasuredWidth());
}
}
@Override
protected void render(GLRootView view, GL11 gl) {
if (mOrientation == UP) {
mChild.render(view, gl);
return;
}
view.pushTransform();
Matrix matrix = view.getTransformation().getMatrix();
float width = getWidth();
float height = getHeight();
switch (mOrientation) {
case DOWN:
matrix.preRotate(180, width / 2, height / 2);
break;
case LEFT:
matrix.preRotate(270, height / 2, height / 2);
break;
case RIGHT:
matrix.preRotate(90, width / 2, width / 2);
break;
}
mChild.render(view, gl);
view.popTransform();
}
@Override
protected boolean dispatchTouchEvent(MotionEvent event) {
float x = event.getX();
float y = event.getY();
float width = getWidth();
float height = getHeight();
switch (mOrientation) {
case DOWN: event.setLocation(width - x, height - y); break;
case LEFT: event.setLocation(height - y, x); break;
case RIGHT: event.setLocation(y, width - x); break;
}
boolean result = mChild.dispatchTouchEvent(event);
event.setLocation(x, y);
return result;
}
public void setOrientation(int orientation) {
if (mOrientation == orientation) return;
mOrientation = orientation;
requestLayout();
}
public void setContent(GLView view) {
if (mChild == view) return;
if (mChild != null) super.clearComponents();
mChild = view;
if (view != null) super.addComponent(view);
requestLayout();
}
@Override
public void addComponent(GLView view) {
throw new UnsupportedOperationException("use setContent(GLView)");
}
@Override
public void clearComponents() {
throw new UnsupportedOperationException("use setContent(null)");
}
}
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