package?com.example.wuziqi;

import?android.content.Context;
import?android.graphics.Canvas;
import?android.graphics.Paint;
import?android.util.AttributeSet;
import?android.view.View;

public?class?WuziqiPanel?extends?View?{
????private??int?mPanelWidth;
????private?float?mLineHeight;
????private?int?MAX_LINE=10;
????private?Paint?mPaint?=?new?Paint();
????public?WuziqiPanel(Context?context,?AttributeSet?attrs)?{
????????super(context,?attrs);
????????setBackgroundColor(0x44ff0000);
????????init();
????}

????private?void?init()?{
????????mPaint.setColor(0x8800000);
????????mPaint.setAntiAlias(true);
????????mPaint.setDither(true);
????????mPaint.setStyle(Paint.Style.STROKE);
????}

????@Override
????protected?void?onMeasure(int?widthMeasure,?int?heightMeasure)?{
????????int?widthSize?=?MeasureSpec.getSize(widthMeasure);
????????int?widthMode?=?MeasureSpec.getMode(widthMeasure);

????????int?heightSize?=?MeasureSpec.getSize(heightMeasure);
????????int?heightMode?=?MeasureSpec.getMode(heightMeasure);

????????int?width?=?Math.min(widthSize,heightSize);
????????if(widthMode?==?MeasureSpec.UNSPECIFIED){
????????????width?=?heightSize;
????????}else?if?(heightMode?==?MeasureSpec.UNSPECIFIED){
????????????width?=?widthSize;
????????}
????????setMeasuredDimension(width,width);
????}

????@Override
????protected?void?onSizeChanged(int?w,?int?h,?int?oldw,?int?oldh)?{
????????super.onSizeChanged(w,?h,?oldw,?oldh);
????????mPanelWidth?=?w;
????????mLineHeight?=?mPanelWidth?*?1.0f?/?MAX_LINE;
????}

????@Override
????protected?void?onDraw(Canvas?canvas)?{
????????super.onDraw(canvas);
????????drawBoard(canvas);
????}

????private?void?drawBoard(Canvas?canvas)?{
????????int?w?=?mPanelWidth;
????????float?lineHeight?=?mLineHeight;
????????for?(int?i?=?0;i<MAX_LINE;i++){
????????????int?startX?=?(int)(lineHeight?/?2);
????????????int?endX??=?(int)(w-lineHeight?/?2);

????????????int?y?=?(int)?((0.5+i)*lineHeight);
????????????canvas.drawLine(startX,y,endX,y,mPaint);
????????????canvas.drawLine(y,startX,y,endX,mPaint);
????????}
????}
}