LWUIT + ChartComponent 之三实现柱体图(HBarChar)
本文来自http://blog.csdn.net/hellogv/
本文源代码下载地址:http://download.csdn.net/source/872671
本文就不再说多余的开场白了,想看开场白?看这里:http://blog.csdn.net/hellogv/archive/2008/12/15/3521119.aspx
直接贴出实现柱体图的代码:
本文源代码下载地址:http://download.csdn.net/source/872671
本文就不再说多余的开场白了,想看开场白?看这里:http://blog.csdn.net/hellogv/archive/2008/12/15/3521119.aspx
直接贴出实现柱体图的代码:
- /*
- *LWUIT+ChartComponent,实现多种图表
- *作者:张国威(咪当俺系噜噜)
- *本例实现的是“横柱体”
- */
- packagecom.sun.lwuit.uidemo;
- importcom.sun.lwuit.Button;
- importcom.sun.lwuit.Command;
- importcom.sun.lwuit.Font;
- importcom.sun.lwuit.Form;
- importcom.sun.lwuit.Image;
- importcom.sun.lwuit.Label;
- importcom.sun.lwuit.events.ActionEvent;
- importcom.sun.lwuit.events.ActionListener;
- importcom.sun.lwuit.layouts.FlowLayout;
- importorg.beanizer.j2me.charts.ChartItem;
- importorg.beanizer.j2me.charts.HBarChart;
- publicclassHBarChartDemoimplementsActionListener{
- publicFormform=newForm("HBarChartDemo");
- privateCommandbackCommand=newCommand("Back",1);
- finalHBarCharthbarChart=newHBarChart("");//定义HBarChart
- HBarChartDemo()
- {
- //柱体说明
- Stringchart_str[]={"█A:你好吗","█B:早上好","█C:中午好","█D:晚上好","█E:吃宵夜","█F:睡懒觉"};
- //柱体颜色
- int[][]color={{0,0,200},{0,200,0},{200,0,0},{200,0,200},{0,200,200},{200,100,200}};
- //柱体长度
- int[]percent={15,10,5,20,34,16};
- //绘制柱体的说明
- initChartInfo(chart_str,color);
- intwidth=form.getWidth();
- intheight=form.getHeight()-140;
- Imageimg_hbarChart=drawHBarChart(hbarChart,width,height,"",color,percent);//绘制柱体图
- Buttonbutton=newButton(img_hbarChart);
- //button.getStyle().setBgTransparency(1);//透明背景,会非常消耗资源,速度减慢,注意使用
- button.setBorderPainted(false);
- form.addComponent(button);
- form.addCommand(backCommand);
- form.setCommandListener(this);
- form.setLayout(newFlowLayout());//必须使用这种排列,FlowLayout最适合
- }
- privatevoidinitChartInfo(String[]chart_str,int[][]color)
- {
- for(inti=0;i<chart_str.length;i++)//循环
- {
- Labelchart_info=newLabel(chart_str[i]);
- chart_info.getStyle().setFgColor(UIDemoMIDlet.RGBtoInt(color[i][0],color[i][1],color[i][2]));
- form.addComponent(chart_info);
- }
- }
- privateImagedrawHBarChart(ChartItemitem,
- intwidth,
- intheight,
- Stringimagefile,
- int[][]color,//柱体颜色
- int[]percent)//柱体长度(百分比)
- {
- item.setFont(Font.FACE_PROPORTIONAL,Font.STYLE_PLAIN,Font.SIZE_SMALL);
- item.setDrawAxis(true);
- item.setPreferredSize(width,height);//设置chart控件的大小
- if(imagefile.length()>0)//需要使用背景时
- {
- try{
- javax.microedition.lcdui.Imageimg=javax.microedition.lcdui.Image.createImage(imagefile);//读取背景图
- item.setBackgroundImage(img);//设置背景图
- }catch(Exceptionex){ex.printStackTrace();}
- }
- item.showShadow(true);//使用阴影特效
- item.setShadowColor(20,20,20);//设置阴影颜色
- item.setColor(40,40,200);
- item.resetData();
- for(inti=0;i<color.length;i++)//循环绘画柱体
- {
- item.addElement(String.valueOf((char)('a'+i)),percent[i],color[i][0],color[i][1],color[i][2]);
- }
- item.setMaxValue(100);//柱体代表数值的显示范围,100%
- //这个是lcdui的Image
- javax.microedition.lcdui.Imagelcdui_img=
- javax.microedition.lcdui.Image.createImage(width,height);//柱体大小,图像>控件
- //这个是lcdui的Graphics
- javax.microedition.lcdui.Graphicslcdui_g=lcdui_img.getGraphics();
- hbarChart.drawChart(lcdui_g,width-40,height-20);//这里设置的大小必须比width,height小,才能完全显示
- returnUIDemoMIDlet.lcdui2lwuit(lcdui_img);
- }
- publicvoidactionPerformed(ActionEventarg0){
- if(arg0.getCommand()==backCommand)
- {
- UIDemoMIDlet.backToMainMenu();
- }
- }
- }