J2ME 绕圆运行菜单

package moder.view;import java.io.IOException;import javax.microedition.lcdui.Font;import javax.microedition.lcdui.Graphics;import javax.microedition.lcdui.Image;import javax.microedition.lcdui.game.Sprite;public class Menu {private int W;private int H;private int arcr;//小圆的直径44int dxr,dyd,dxl,dyu,dxm,dymd,dymu,sxl,sxr,sxml,sxmr,sym,sxy,syd,syu;//int no1x,no1y,no2x,no2y,no3x,no3y,no4x,no4y,no5x,no5y,no6x,no6y,//no7x,no7y,no8x,no8y,no9x,no9y,no10x,no10y,no11x,no11y,no12x,no12y;Font font=Font.getFont(Font.FACE_SYSTEM,Font.STYLE_PLAIN,Font.SIZE_SMALL);private int[] xlocal,ylocal;private int[] xpoint,ypoint;private int index;public static final String[] fulist={"阅读历史","分类列表","图书搜索","我的收藏","火爆排行","最新上架"};private String selectedlist;private Image img_pp;//private int arcx[],arcy[];public Menu(int SW,int SH){W=SW;H=SH;if(W>H)arcr=H/4;elsearcr=W/4;//int cos30=87*3*arcr/2/100;//int haw=W/2,hah=H/2;//no1x=haw-arcr/2; no1y=hah-2*arcr;//no2x=haw+arcr/4; no2y=hah-cos30-arcr/2;//no3x=haw+cos30-arcr/2; no3y=hah-5*arcr/4;//no4x=haw+arcr;no4y=hah-arcr/2;//no5x=haw+cos30-arcr/2;no5y=hah+arcr/4;//no6x=haw+arcr/4;no6y=hah+cos30-arcr/2;//no7x=haw-arcr/2;no7y=hah+arcr;//no8x=haw-arcr/4;no8y=hah+cos30-arcr/2;//no9x=haw-cos30-arcr/2;no9y=hah+arcr/4;//no10x=haw-2*arcr;no10y=hah-arcr/2;//no11x=haw-cos30-arcr/2;no11y=hah-arcr*5/4;//no12x=haw-arcr/4;no12y=hah-cos30-arcr/2;////arcx=new int[]{no1x,no2x,no3x,no4x,no5x,no6x,no7x,no8x,no9x,no10x,no11x,no12x};//arcy=new int[]{no1y,no2y,no3y,no4y,no5y,no6y,no7y,no8y,no9y,no10y,no11y,no12y};dxr=W/2+87*arcr*3/2/100-arcr/2;dyu=H/2-arcr*3/4-arcr/2;dxl=W/2-87*arcr*3/2/100-arcr/2;dyd=H/2+arcr*3/4-arcr/2;dxm=W/2-arcr/2;dymu=H/2-2*arcr;dymd=H/2+arcr;sxl=W/2-arcr*5/4;sxr=W/2+arcr*3/4-arcr/2;sxml=W/2-2*arcr;sxmr=W/2+arcr;sym=H/2-arcr/2;syu=H/2-87*arcr*3/2/100-arcr/2;syd=H/2+87*arcr*3/2/100-arcr/2;try {img_pp=Image.createImage("/pp.png");} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}xlocal=new int[]{dxm,dxr,dxr,dxm,dxl,dxl};ylocal=new int[]{dymu,dyu,dyd,dymd,dyd,dyu};xpoint=new int[]{sxl,sxr,sxmr,sxr,sxl,sxml};ypoint=new int[]{syu,syu,sym,syd,syd,sym};}/** * 画菜单 * 调用时只需要将icoindex改变并转换change状态 * @param g * @param icoindex 图片索引 * @param charge 切换状态 * @return 所选字段 */public String showIco(Graphics g,int icoindex,boolean change){g.setColor(255,127,127);selectedlist=fulist[(icoindex+3)%6];g.drawString(selectedlist, W/2-font.charWidth('最')*2, H/2-font.getHeight()/2, 20);if(!change)icolist(g,icoindex);else{if(index+5==icoindex)icolistturn(g,icoindex);elseicolistturn(g,icoindex-1);index=icoindex;}return selectedlist;}public String getSelectedlist(int input){return fulist[(input+3)%6];}private void icolistturn(Graphics g,int icoindex){//左右类型g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xpoint[0],ypoint[0], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xpoint[1],ypoint[1], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xpoint[2],ypoint[2], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xpoint[3],ypoint[3], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xpoint[4],ypoint[4], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xpoint[5],ypoint[5], 20);}private void icolist(Graphics g,int icoindex){//上下类型g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xlocal[0],ylocal[0], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xlocal[1],ylocal[1], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xlocal[2],ylocal[2], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 44, 44, 44, Sprite.TRANS_NONE, xlocal[3],ylocal[3], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xlocal[4],ylocal[4], 20);icoindex++;g.drawRegion(img_pp, 44*(icoindex%6), 0, 44, 44, Sprite.TRANS_NONE, xlocal[5],ylocal[5], 20);}}