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/*
* 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.gallery3d.filtershow.imageshow;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.RectF;
import android.util.AttributeSet;
import com.android.gallery3d.R;
import com.android.gallery3d.filtershow.editors.EditorStraighten;
public class ImageStraighten extends ImageGeometry {
private float mBaseAngle = 0;
private float mAngle = 0;
private EditorStraighten mEditorStraighten;
private static final String LOGTAG = "ImageStraighten";
private static final Paint gPaint = new Paint();
public ImageStraighten(Context context) {
super(context);
}
public ImageStraighten(Context context, AttributeSet attrs) {
super(context, attrs);
}
@Override
protected void setActionDown(float x, float y) {
super.setActionDown(x, y);
mBaseAngle = mAngle = getLocalStraighten();
}
private void setCropToStraighten(){
setLocalCropBounds(getUntranslatedStraightenCropBounds(getLocalPhotoBounds(),
getLocalStraighten()));
}
@Override
protected void setActionMove(float x, float y) {
super.setActionMove(x, y);
computeValue();
setLocalStraighten(mAngle);
setCropToStraighten();
}
private void computeValue() {
float angle = getCurrentTouchAngle();
mAngle = (mBaseAngle - angle) % 360;
mAngle = Math.max(MIN_STRAIGHTEN_ANGLE, mAngle);
mAngle = Math.min(MAX_STRAIGHTEN_ANGLE, mAngle);
}
@Override
protected void lostVisibility() {
saveAndSetPreset();
}
@Override
protected void gainedVisibility(){
setCropToStraighten();
}
@Override
protected void setActionUp() {
super.setActionUp();
setCropToStraighten();
}
@Override
public void onNewValue(int value) {
setLocalStraighten(GeometryMath.clamp(value, MIN_STRAIGHTEN_ANGLE, MAX_STRAIGHTEN_ANGLE));
invalidate();
}
@Override
protected int getLocalValue() {
return (int) getLocalStraighten();
}
@Override
protected void drawShape(Canvas canvas, Bitmap image) {
float [] o = {0, 0};
RectF bounds = drawTransformed(canvas, image, gPaint, o);
// Draw the grid
gPaint.setARGB(255, 255, 255, 255);
gPaint.setStrokeWidth(3);
gPaint.setStyle(Paint.Style.FILL_AND_STROKE);
RectF display = getLocalDisplayBounds();
float dWidth = display.width();
float dHeight = display.height();
if (mMode == MODES.MOVE) {
canvas.save();
canvas.clipRect(bounds);
int n = 16;
float step = dWidth / n;
float p = 0;
for (int i = 1; i < n; i++) {
p = i * step;
gPaint.setARGB(60, 255, 255, 255);
canvas.drawLine(p, 0, p, dHeight, gPaint);
canvas.drawLine(0, p, dWidth, p, gPaint);
}
canvas.restore();
}
}
public void setEditor(EditorStraighten editorStraighten) {
mEditorStraighten = editorStraighten;
}
}
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