/*
* 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.state;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.*;
import android.util.AttributeSet;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewParent;
import android.widget.LinearLayout;
import com.android.gallery3d.R;
import com.android.gallery3d.filtershow.FilterShowActivity;
import com.android.gallery3d.filtershow.imageshow.MasterImage;
public class StateView extends View {
private static final String LOGTAG = "StateView";
private Path mPath = new Path();
private Paint mPaint = new Paint();
public static int DEFAULT = 0;
public static int BEGIN = 1;
public static int END = 2;
public static int UP = 1;
public static int DOWN = 2;
public static int LEFT = 3;
public static int RIGHT = 4;
private int mType = DEFAULT;
private float mAlpha = 1.0f;
private String mText = "Default";
private float mTextSize = 32;
private static int sMargin = 16;
private static int sArrowHeight = 16;
private static int sArrowWidth = 8;
private int mOrientation = LinearLayout.VERTICAL;
private int mDirection = DOWN;
private boolean mDuplicateButton;
private State mState;
private int mEndsBackgroundColor;
private int mEndsTextColor;
private int mBackgroundColor;
private int mTextColor;
private int mSelectedBackgroundColor;
private int mSelectedTextColor;
private Rect mTextBounds = new Rect();
public StateView(Context context) {
this(context, DEFAULT);
}
public StateView(Context context, int type) {
super(context);
mType = type;
Resources res = getResources();
mEndsBackgroundColor = res.getColor(R.color.filtershow_stateview_end_background);
mEndsTextColor = res.getColor(R.color.filtershow_stateview_end_text);
mBackgroundColor = res.getColor(R.color.filtershow_stateview_background);
mTextColor = res.getColor(R.color.filtershow_stateview_text);
mSelectedBackgroundColor = res.getColor(R.color.filtershow_stateview_selected_background);
mSelectedTextColor = res.getColor(R.color.filtershow_stateview_selected_text);
mTextSize = res.getDimensionPixelSize(R.dimen.state_panel_text_size);
}
public String getText() {
return mText;
}
public void setText(String text) {
mText = text;
invalidate();
}
public void setType(int type) {
mType = type;
invalidate();
}
@Override
public void setSelected(boolean value) {
super.setSelected(value);
if (!value) {
mDuplicateButton = false;
}
invalidate();
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getActionMasked() == MotionEvent.ACTION_DOWN) {
ViewParent parent = getParent();
if (parent instanceof PanelTrack) {
((PanelTrack) getParent()).onTouch(event, this);
}
if (mType == BEGIN) {
MasterImage.getImage().setShowsOriginal(true);
}
}
if (event.getActionMasked() == MotionEvent.ACTION_UP
|| event.getActionMasked() == MotionEvent.ACTION_CANCEL) {
MasterImage.getImage().setShowsOriginal(false);
}
return true;
}
public void drawText(Canvas canvas) {
if (mText == null) {
return;
}
mPaint.reset();
if (isSelected()) {
mPaint.setColor(mSelectedTextColor);
} else {
mPaint.setColor(mTextColor);
}
if (mType == BEGIN) {
mPaint.setColor(mEndsTextColor);
}
mPaint.setTypeface(Typeface.DEFAULT_BOLD);
mPaint.setAntiAlias(true);
mPaint.setTextSize(mTextSize);
mPaint.getTextBounds(mText, 0, mText.length(), mTextBounds);
int x = (canvas.getWidth() - mTextBounds.width()) / 2;
int y = mTextBounds.height() + (canvas.getHeight() - mTextBounds.height()) / 2;
canvas.drawText(mText, x, y, mPaint);
}
public void onDraw(Canvas canvas) {
canvas.drawARGB(0, 0, 0, 0);
mPaint.reset();
mPath.reset();
float w = canvas.getWidth();
float h = canvas.getHeight();
float r = sArrowHeight;
float d = sArrowWidth;
if (mOrientation == LinearLayout.HORIZONTAL) {
drawHorizontalPath(w, h, r, d);
} else {
if (mDirection == DOWN) {
drawVerticalDownPath(w, h, r, d);
} else {
drawVerticalPath(w, h, r, d);
}
}
if (mType == DEFAULT || mType == END) {
if (mDuplicateButton) {
mPaint.setARGB(255, 200, 0, 0);
} else if (isSelected()) {
mPaint.setColor(mSelectedBackgroundColor);
} else {
mPaint.setColor(mBackgroundColor);
}
} else {
mPaint.setColor(mEndsBackgroundColor);
}
canvas.drawPath(mPath, mPaint);
drawText(canvas);
}
private void drawHorizontalPath(float w, float h, float r, float d) {
mPath.moveTo(0, 0);
if (mType == END) {
mPath.lineTo(w, 0);
mPath.lineTo(w, h);
} else {
mPath.lineTo(w - d, 0);
mPath.lineTo(w - d, r);
mPath.lineTo(w, r + d);
mPath.lineTo(w - d, r + d + r);
mPath.lineTo(w - d, h);
}
mPath.lineTo(0, h);
if (mType != BEGIN) {
mPath.lineTo(0, r + d + r);
mPath.lineTo(d, r + d);
mPath.lineTo(0, r);
}
mPath.close();
}
private void drawVerticalPath(float w, float h, float r, float d) {
if (mType == BEGIN) {
mPath.moveTo(0, 0);
mPath.lineTo(w, 0);
} else {
mPath.moveTo(0, d);
mPath.lineTo(r, d);
mPath.lineTo(r + d, 0);
mPath.lineTo(r + d + r, d);
mPath.lineTo(w, d);
}
mPath.lineTo(w, h);
if (mType != END) {
mPath.lineTo(r + d + r, h);
mPath.lineTo(r + d, h - d);
mPath.lineTo(r, h);
}
mPath.lineTo(0, h);
mPath.close();
}
private void drawVerticalDownPath(float w, float h, float r, float d) {
mPath.moveTo(0, 0);
if (mType != BEGIN) {
mPath.lineTo(r, 0);
mPath.lineTo(r + d, d);
mPath.lineTo(r + d + r, 0);
}
mPath.lineTo(w, 0);
if (mType != END) {
mPath.lineTo(w, h - d);
mPath.lineTo(r + d + r, h - d);
mPath.lineTo(r + d, h);
mPath.lineTo(r, h - d);
mPath.lineTo(0, h - d);
} else {
mPath.lineTo(w, h);
mPath.lineTo(0, h);
}
mPath.close();
}
public void setBackgroundAlpha(float alpha) {
if (mType == BEGIN) {
return;
}
mAlpha = alpha;
setAlpha(alpha);
invalidate();
}
public float getBackgroundAlpha() {
return mAlpha;
}
public void setOrientation(int orientation) {
mOrientation = orientation;
}
public void setDuplicateButton(boolean b) {
mDuplicateButton = b;
invalidate();
}
public State getState() {
return mState;
}
public void setState(State state) {
mState = state;
mText = mState.getText().toUpperCase();
mType = mState.getType();
invalidate();
}
public void resetPosition() {
setTranslationX(0);
setTranslationY(0);
setBackgroundAlpha(1.0f);
}
public boolean isDraggable() {
return mState.isDraggable();
}
}