/*
* Copyright 2013, Edmodo, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this work except in compliance with the License.
* You may obtain a copy of the License in the LICENSE file, or 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.smartandroid.sa.cropper;
import android.graphics.Rect;
/**
* HandleHelper class to handle the center handle.
*/
class CenterHandleHelper extends HandleHelper {
// Constructor /////////////////////////////////////////////////////////////
CenterHandleHelper() {
super(null, null);
}
// HandleHelper Methods ////////////////////////////////////////////////////
@Override
void updateCropWindow(float x, float y, Rect imageRect, float snapRadius) {
float left = Edge.LEFT.getCoordinate();
float top = Edge.TOP.getCoordinate();
float right = Edge.RIGHT.getCoordinate();
float bottom = Edge.BOTTOM.getCoordinate();
final float currentCenterX = (left + right) / 2;
final float currentCenterY = (top + bottom) / 2;
final float offsetX = x - currentCenterX;
final float offsetY = y - currentCenterY;
// Adjust the crop window.
Edge.LEFT.offset(offsetX);
Edge.TOP.offset(offsetY);
Edge.RIGHT.offset(offsetX);
Edge.BOTTOM.offset(offsetY);
// Check if we have gone out of bounds on the sides, and fix.
if (Edge.LEFT.isOutsideMargin(imageRect, snapRadius)) {
final float offset = Edge.LEFT.snapToRect(imageRect);
Edge.RIGHT.offset(offset);
} else if (Edge.RIGHT.isOutsideMargin(imageRect, snapRadius)) {
final float offset = Edge.RIGHT.snapToRect(imageRect);
Edge.LEFT.offset(offset);
}
// Check if we have gone out of bounds on the top or bottom, and fix.
if (Edge.TOP.isOutsideMargin(imageRect, snapRadius)) {
final float offset = Edge.TOP.snapToRect(imageRect);
Edge.BOTTOM.offset(offset);
} else if (Edge.BOTTOM.isOutsideMargin(imageRect, snapRadius)) {
final float offset = Edge.BOTTOM.snapToRect(imageRect);
Edge.TOP.offset(offset);
}
}
@Override
void updateCropWindow(float x, float y, float targetAspectRatio,
Rect imageRect, float snapRadius) {
updateCropWindow(x, y, imageRect, snapRadius);
}
}