package com.myView;
import com.androidphoto.unique.R;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Matrix;
import android.graphics.Bitmap.Config;
import android.util.FloatMath;
import android.util.Log;
import android.view.MotionEvent;
import android.view.View;
public class Draw extends View
{
Bmp bmp[];
public Draw(Context
context)
{
super(context);
int len ;
len = 4;
bmp = new Bmp[len];
{
for(int i
= 0; i < len; i++)
{
// bmp[i] = new
Bmp(BitmapFactory.decodeFile(path[i]), i, i * 50f, i * 60f);
bmp[i] =
new
Bmp(Bitmap.createScaledBitmap(BitmapFactory.decodeStream(getResources().openRawResource(R.drawable.you)),
240, 240, false), i, i * 50f, i * 60f);
bmp[i].width =
bmp[i].getPic().getWidth();
bmp[i].height =
bmp[i].getPic().getWidth();
}
}
this.pic = bmp;
this.canvas.drawColor(-232432445);
for(int i
= 0; i < 4; i++)
{
tempBitmap =
pic[0].findByPiority(pic, i);
tempBitmap.matrix.preTranslate(tempBitmap.getXY(1) -
tempBitmap.getWidth() / 2, tempBitmap.getXY(2) -
tempBitmap.getHeight() / 2);
this.canvas.drawBitmap(tempBitmap.pic, tempBitmap.matrix, null);
}
}
@Override
public void
onDraw(Canvas canvas)
{
super.onDraw(canvas);
canvas.drawBitmap(canvasBitmap, 0, 0, null);
}
@Override
public boolean onTouchEvent(MotionEvent event)
{
// 向上弹起
if(//event.getAction() == MotionEvent.ACTION_UP
event.getAction() ==
MotionEvent.ACTION_POINTER_1_UP
|| event.getAction() ==
MotionEvent.ACTION_POINTER_2_UP)
{
bool = true;
if(twoPoint >
0)
twoPoint --;
}
if(event.getAction() == MotionEvent.ACTION_DOWN
&& event.getPointerCount() == 1)
{
order(event);
this.X = event.getX();
this.Y = event.getY();
CX =
pic[3].findByPiority(pic, 3).getXY(1) - event.getX();
CY =
pic[3].findByPiority(pic, 3).getXY(2) - event.getY();
Begin =
true;
}
if(event.getAction() == MotionEvent.ACTION_MOVE
&& Begin
&& event.getPointerCount() == 1
//&& twoPoint ==
0
)
{
this.X = event.getX();
this.Y = event.getY();
this.canvas.drawColor(-232432445);
for(int i = 0; i
< 3; i++)
{
tempBitmap = pic[0].findByPiority(pic, i);
// tempBitmap.matrix.preTranslate(0f, 0f);
canvas.drawBitmap(tempBitmap.getPic(),
tempBitmap.matrix, null);
}
tempBitmap =
pic[0].findByPiority(pic, 3);
rotalP = rotalPoint(new
float[]{this.X, this.Y}, tempBitmap.preX, tempBitmap.preY,
tempBitmap.width / 2, tempBitmap.height / 2, tempBitmap.matrix);
if(
(Math.abs(X - pic[0].findByPiority(pic, 3).getXY(1))
< pic[0].findByPiority(pic, 3).getWidth() / 2)
&& (Math.abs(Y -
pic[0].findByPiority(pic, 3).getXY(2)) <
pic[0].findByPiority(pic, 3).getHeight() / 2)
)
{
Log.i("the reeal width",
String.valueOf(tempBitmap.getWidth()));
rotalC = this.getT(tempBitmap.width / 2,
tempBitmap.height / 2 , X + CX, Y + CY, tempBitmap.matrix);
canvas.drawBitmap(tempBitmap.getPic(),
tempBitmap.matrix, null);
tempBitmap.preX = X + CX;
tempBitmap.preY = Y + CY;
}
else
{
// tempBitmap.matrix.preTranslate(0f, 0f);
canvas.drawBitmap(tempBitmap.getPic(),
tempBitmap.matrix, null);
}
}
// 两指移动
if(event.getPointerCount() >= 2
&& event.getAction() ==
MotionEvent.ACTION_MOVE)
{
twoPoint = 2;
this.canvas.drawColor(-232432445);
invalidate();
for(int i = 0; i
< 3; i++)
{
tempBitmap = pic[0].findByPiority(pic, i);
this.canvas.drawBitmap(tempBitmap.getPic(),
tempBitmap.matrix, null);
}
tempBitmap =
pic[0].findByPiority(pic, 3);
rotalP = rotalPoint(new
float[]{event.getX(0), event.getY(0)}, tempBitmap.preX,
tempBitmap.preY, tempBitmap.width / 2, tempBitmap.height / 2,
tempBitmap.matrix);
rotalP_2 = rotalPoint(new
float[]{event.getX(1), event.getY(1)}, tempBitmap.preX,
tempBitmap.preY, tempBitmap.width / 2, tempBitmap.height / 2,
tempBitmap.matrix);
if(
(Math.abs(rotalP[0] - pic[0].findByPiority(pic, 3).getXY(1))
< pic[0].findByPiority(pic, 3).width / 2)
&&
(Math.abs(rotalP[1] - pic[0].findByPiority(pic, 3).getXY(2))
< pic[0].findByPiority(pic, 3).height / 2)
&&
(Math.abs(rotalP_2[0] - pic[0].findByPiority(pic, 3).getXY(1))
< pic[0].findByPiority(pic, 3).width / 2)
&&
(Math.abs(rotalP_2[1] - pic[0].findByPiority(pic, 3).getXY(2))
< pic[0].findByPiority(pic, 3).height / 2)
|| true
)
{
if(bool)
{
preLength
= spacing(event);
preCos =
cos(event);
bool =
false;
}
// 获取角度和长度
length = spacing(event);
cos = cos(event);
// 放大和缩小
if(length - preLength != 0)
{
tempBitmap.width *= (1.0f + (length - preLength) / length);
tempBitmap.height *= (1.0f + (length - preLength) / length);
tempBitmap.pic =
Bitmap.createScaledBitmap(BitmapFactory.decodeStream(getResources().openRawResource(R.drawable.you)),
(int)tempBitmap.width, (int) tempBitmap.height, false);
Log.i("new
Width", String.valueOf(pic[0].findByPiority(pic, 3).getWidth()));
scale(tempBitmap.width / 2, tempBitmap.height / 2 ,
tempBitmap.preX, tempBitmap.preY, tempBitmap.matrix);
}
// 旋转
if(Math.abs(cos) > 3
&& Math.abs(cos) <
177 && Math.abs(cos - preCos)
< 15)
{
tempBitmap.matrix.postRotate(cos - preCos);
this.getT(tempBitmap.width / 2, tempBitmap.height / 2 ,
tempBitmap.preX, tempBitmap.preY, tempBitmap.matrix);
}
preCos = cos;
preLength = length;
// this.getT(tempBitmap.width / 2, tempBitmap.height
/ 2 , tempBitmap.preX, tempBitmap.preY, tempBitmap.matrix);
}
// 初始位置
canvas.drawBitmap(tempBitmap.getPic(), tempBitmap.matrix, null);
Log.i("preX and preY",
String.valueOf(tempBitmap.preX) + " : " +
String.valueOf(tempBitmap.preY));
}
if(event.getAction() == MotionEvent.ACTION_UP)
{
CX = 0f;
CY = 0f;
Begin = false;
}
invalidate();
Log.i("preX and preY", String.valueOf(tempBitmap.preX) + " : " +
String.valueOf(tempBitmap.preY));
return
true;
}
public void
order(MotionEvent event)
{
Bmp temp = null;
for(int i = 3; i > -1; i--)
{
rotalP = rotalPoint(new
float[]{event.getX(), event.getY()}, pic[0].findByPiority(pic,
i).preX, pic[0].findByPiority(pic, i).preY,
pic[0].findByPiority(pic, i).width / 2, pic[0].findByPiority(pic,
i).height / 2, pic[0].findByPiority(pic, i).matrix);
if(
(Math.abs(pic[0].findByPiority(pic, i).getXY(1)
- rotalP[0]) < pic[0].findByPiority(pic, i).width /
2)
&&
(Math.abs(pic[0].findByPiority(pic, i).getXY(2) - rotalP[1])
< pic[0].findByPiority(pic, i).height / 2)
)
{
temp =
pic[0].findByPiority(pic, i);
for(Bmp bmp: pic)
{
if(bmp.getPriority() >
pic[0].findByPiority(pic, i).getPriority())
{
bmp.priority--;
}
}
temp.setPiority(3);
Begin = true;
return;
}
}
}
public float[]
getT(float preX, float preY, float x, float y, Matrix matrix)
{
float[] re = new float[2];
float[] matrixArray = new float[9];
matrix.getValues(matrixArray);
float a = x - preX * matrixArray[0] - preY *
matrixArray[1];
float b = y - preX * matrixArray[3] - preY *
matrixArray[4];
matrixArray[2] = a;
matrixArray[5] = b;
matrix.setValues(matrixArray);
re[0] = a;
re[1] = b;
return re;
}
public void scale(float
preX, float preY, float x, float y, Matrix matrix)
{
float[] matrixArray = new float[9];
matrix.getValues(matrixArray);
float a = x - preX;
float b = y - preY;
matrixArray[2] = a;
matrixArray[5] = b;
matrix.setValues(matrixArray);
}
public void
setToO(Matrix matrix)
{
float[] matrixArray = new float[9];
matrix.getValues(matrixArray);
float a = 0f;
float b = 0f;
matrixArray[2] = a;
matrixArray[5] = b;
matrix.setValues(matrixArray);
}
public float[]
rotalPoint(float[] p, float X, float Y, float width, float height,
Matrix matrix)
{
float re[] = new float[2];
float matrixArray[] = new float[9];
matrix.getValues(matrixArray);
float a = p[0] - X;
float b = p[1] - Y;
re[0] = a * matrixArray[0] - b * matrixArray[1]
+ X;
re[1] = - a * matrixArray[3] + b *
matrixArray[4] + Y;
return re;
}
// 计算长度
private float spacing(MotionEvent event)
{
float x = event.getX(0) - event.getX(1);
float y = event.getY(0) - event.getY(1);
return FloatMath.sqrt(x * x + y * y);
}
// 计算余弦
private float cos(MotionEvent event)
{
// Log.i("XY",
String.valueOf(event.getX(0))
// + " " +
String.valueOf(event.getY(0))
// + " " +
String.valueOf(event.getX(1))
// + " " +
String.valueOf(event.getY(1)));
if((event.getX(0) - event.getX(1)) * (event.getY(0) -
event.getY(1)) > 0)
{
return (float) ((float)
Math.acos(Math.abs(event.getX(0) - event.getX(1)) / spacing(event))
/ Math.PI * 180f);
}
if((event.getX(0) - event.getX(1)) * (event.getY(0) -
event.getY(1)) < 0)
{
return (float) ((float)
Math.acos(- Math.abs(event.getX(0) - event.getX(1)) /
spacing(event)) / Math.PI * 180f);
}
if(event.getX(0) - event.getX(1) == 0)
{
return (float) 90f;
}
if(event.getY(0) - event.getY(1) == 0)
{
return 0f;
}
return
45f;
}
private Bitmap
canvasBitmap = Bitmap.createBitmap(480, 500, Config.ARGB_8888);
private Bmp tempBitmap =
null;
private Canvas canvas =
new Canvas(canvasBitmap);
private float X = 0f;
private float Y = 0f;
@SuppressWarnings("unused")
private float DownX = 0f;
@SuppressWarnings("unused")
private float DownY = 0f;
private Bmp[] pic = new
Bmp[4];
private float CX = 0f;
private float CY = 0f;
private boolean Begin =
true;
float rotalC[] = new
float[2];
float rotalP[] = new
float[2];
float rotalP_2[] = new
float[2];
int twoPoint = 0;
private float preLength
= 480.0f;
private float length =
480.0f;
private float preCos =
0f;
private float cos = 0f;
private boolean bool =
true;
}
// @param pic:the Bitmap to draw
// @param piority: the order to draw picture
// @param preX,preY: the X and Y
class Bmp
{
// 构造器
public Bmp(Bitmap pic,
int piority)
{
this.pic = pic;
this.priority = piority;
}
// 构造器
public Bmp(Bitmap pic,
int priority, float preX, float preY)
{
this(pic, priority);
this.preX = preX + pic.getWidth() / 2 * 1.5f;
this.preY = preY + pic.getHeight() / 2 * 1.5f;
}
// findPiority
public Bmp
findByPiority(Bmp[] pic, int priority)
{
for(Bmp p : pic)
{
if(p.priority == priority)
{
return p;
}
}
return null;
}
// set Priority
public void
setPiority(int priority)
{
this.priority = priority;
}
// return Priority
public int getPriority()
{
return this.priority;
}
// return X and Y
public float getXY(int
i)
{
if(i == 1)
{
return
this.preX;
}
else if(i == 2)
{
return
this.preY;
}
return (Float) null;
}
// getPicture
public Bitmap getPic()
{
return this.pic;
}
// getWidth
public float getWidth()
{
return width;
}
// getHeight
public float getHeight()
{
return height;
}
float preX = 0;
float preY = 0;
float width = 0;
float height = 0;
Bitmap pic = null;
int priority = 0;
Matrix matrix = new
Matrix();
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