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/*
* Copyright (C) 2013 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.category;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.view.MotionEvent;
import android.view.View;
import com.android.gallery3d.R;
import com.android.gallery3d.filtershow.FilterShowActivity;
import com.android.gallery3d.filtershow.ui.SelectionRenderer;
public class CategoryView extends IconView
implements View.OnClickListener, SwipableView{
private static final String LOGTAG = "CategoryView";
public static final int VERTICAL = 0;
public static final int HORIZONTAL = 1;
private Paint mPaint = new Paint();
private Action mAction;
private Paint mSelectPaint;
CategoryAdapter mAdapter;
private int mSelectionStroke;
private Paint mBorderPaint;
private int mBorderStroke;
private float mStartTouchX = 0;
private float mStartTouchY = 0;
private float mDeleteSlope = 20;
private int mSelectionColor = Color.WHITE;
private int mSpacerColor = Color.WHITE;
private boolean mCanBeRemoved = false;
public CategoryView(Context context) {
super(context);
setOnClickListener(this);
Resources res = getResources();
mSelectionStroke = res.getDimensionPixelSize(R.dimen.thumbnail_margin);
mSelectPaint = new Paint();
mSelectPaint.setStyle(Paint.Style.FILL);
mSelectionColor = res.getColor(R.color.filtershow_category_selection);
mSpacerColor = res.getColor(R.color.filtershow_categoryview_text);
mSelectPaint.setColor(mSelectionColor);
mBorderPaint = new Paint(mSelectPaint);
mBorderPaint.setColor(Color.BLACK);
mBorderStroke = mSelectionStroke / 3;
}
@Override
public boolean isHalfImage() {
if (mAction == null) {
return false;
}
if (mAction.getType() == Action.CROP_VIEW) {
return true;
}
if (mAction.getType() == Action.ADD_ACTION) {
return true;
}
return false;
}
private boolean canBeRemoved() {
return mCanBeRemoved;
}
private void drawSpacer(Canvas canvas) {
mPaint.reset();
mPaint.setAntiAlias(true);
mPaint.setColor(mSpacerColor);
if (getOrientation() == CategoryView.VERTICAL) {
canvas.drawCircle(getWidth() / 2, getHeight() / 2, getHeight() / 5, mPaint);
} else {
canvas.drawCircle(getWidth() / 2, getHeight() / 2, getWidth() / 5, mPaint);
}
}
@Override
public boolean needsCenterText() {
if (mAction != null && mAction.getType() == Action.ADD_ACTION) {
return true;
}
return super.needsCenterText();
}
public void onDraw(Canvas canvas) {
if (mAction != null) {
if (mAction.getType() == Action.SPACER) {
drawSpacer(canvas);
return;
}
if (mAction.getImage() == null) {
mAction.setImageFrame(new Rect(0, 0, getWidth(), getHeight()), getOrientation());
} else {
setBitmap(mAction.getImage());
}
}
super.onDraw(canvas);
if (mAdapter.isSelected(this)) {
SelectionRenderer.drawSelection(canvas, 0, 0,
getWidth(), getHeight(),
mSelectionStroke, mSelectPaint, mBorderStroke, mBorderPaint);
}
}
public void setAction(Action action, CategoryAdapter adapter) {
mAction = action;
setText(mAction.getName());
mAdapter = adapter;
mCanBeRemoved = action.canBeRemoved();
setUseOnlyDrawable(false);
if (mAction.getType() == Action.ADD_ACTION) {
Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.filtershow_add);
setBitmap(bitmap);
setUseOnlyDrawable(true);
setText(getResources().getString(R.string.filtershow_add_button_looks));
} else {
setBitmap(mAction.getImage());
}
invalidate();
}
@Override
public void onClick(View view) {
FilterShowActivity activity = (FilterShowActivity) getContext();
if (mAction.getType() == Action.ADD_ACTION) {
activity.addNewPreset();
} else if (mAction.getType() != Action.SPACER) {
activity.showRepresentation(mAction.getRepresentation());
mAdapter.setSelected(this);
}
}
@Override
public boolean onTouchEvent(MotionEvent event) {
boolean ret = super.onTouchEvent(event);
if (!canBeRemoved()) {
return ret;
}
if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
mStartTouchY = event.getY();
mStartTouchX = event.getX();
}
if (event.getActionMasked() == MotionEvent.ACTION_UP) {
setTranslationX(0);
setTranslationY(0);
}
if (event.getActionMasked() == MotionEvent.ACTION_MOVE) {
float delta = event.getY() - mStartTouchY;
if (getOrientation() == CategoryView.VERTICAL) {
delta = event.getX() - mStartTouchX;
}
if (Math.abs(delta) > mDeleteSlope) {
FilterShowActivity activity = (FilterShowActivity) getContext();
activity.setHandlesSwipeForView(this, mStartTouchX, mStartTouchY);
}
}
return true;
}
@Override
public void delete() {
mAdapter.remove(mAction);
}
}
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