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package com.android.gallery3d.filtershow.imageshow;
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Matrix;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.MotionEvent;
import com.android.gallery3d.filtershow.editors.EditorDraw;
import com.android.gallery3d.filtershow.filters.FilterDrawRepresentation;
import com.android.gallery3d.filtershow.filters.ImageFilterDraw;
public class ImageDraw extends ImageShow {
private static final String LOGTAG = "ImageDraw";
private int mCurrentColor = Color.RED;
final static float INITAL_STROKE_RADIUS = 40;
private float mCurrentSize = INITAL_STROKE_RADIUS;
private byte mType = 0;
private FilterDrawRepresentation mFRep;
private EditorDraw mEditorDraw;
public ImageDraw(Context context, AttributeSet attrs) {
super(context, attrs);
resetParameter();
}
public ImageDraw(Context context) {
super(context);
resetParameter();
}
public void setEditor(EditorDraw editorDraw) {
mEditorDraw = editorDraw;
}
public void setFilterDrawRepresentation(FilterDrawRepresentation fr) {
mFRep = fr;
}
public Drawable getIcon(Context context) {
return null;
}
@Override
public void resetParameter() {
if (mFRep != null) {
mFRep.clear();
}
}
public void setColor(int color) {
mCurrentColor = color;
}
public void setSize(int size) {
mCurrentSize = size;
}
public void setStyle(byte style) {
mType = (byte) (style % ImageFilterDraw.NUMBER_OF_STYLES);
}
public int getStyle() {
return mType;
}
public int getSize() {
return (int) mCurrentSize;
}
@Override
public void updateImage() {
super.updateImage();
invalidate();
}
float[] mTmpPoint = new float[2]; // so we do not malloc
@Override
public boolean onTouchEvent(MotionEvent event) {
if (event.getPointerCount() > 1) {
boolean ret = super.onTouchEvent(event);
if (mFRep.getCurrentDrawing() != null) {
mFRep.clearCurrentSection();
mEditorDraw.commitLocalRepresentation();
}
return ret;
}
if (event.getAction() != MotionEvent.ACTION_DOWN) {
if (mFRep.getCurrentDrawing() == null) {
return super.onTouchEvent(event);
}
}
if (event.getAction() == MotionEvent.ACTION_DOWN) {
calcScreenMapping();
mTmpPoint[0] = event.getX();
mTmpPoint[1] = event.getY();
mToOrig.mapPoints(mTmpPoint);
mFRep.startNewSection(mType, mCurrentColor, mCurrentSize, mTmpPoint[0], mTmpPoint[1]);
}
if (event.getAction() == MotionEvent.ACTION_MOVE) {
int historySize = event.getHistorySize();
for (int h = 0; h < historySize; h++) {
int p = 0;
{
mTmpPoint[0] = event.getHistoricalX(p, h);
mTmpPoint[1] = event.getHistoricalY(p, h);
mToOrig.mapPoints(mTmpPoint);
mFRep.addPoint(mTmpPoint[0], mTmpPoint[1]);
}
}
}
if (event.getAction() == MotionEvent.ACTION_UP) {
mTmpPoint[0] = event.getX();
mTmpPoint[1] = event.getY();
mToOrig.mapPoints(mTmpPoint);
mFRep.endSection(mTmpPoint[0], mTmpPoint[1]);
}
mEditorDraw.commitLocalRepresentation();
invalidate();
return true;
}
Matrix mRotateToScreen = new Matrix();
Matrix mToOrig;
private void calcScreenMapping() {
mToOrig = getScreenToImageMatrix(true);
mToOrig.invert(mRotateToScreen);
}
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
calcScreenMapping();
}
}
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