?? barcanvas.java
字號:
import javax.microedition.lcdui.*;
class BarCanvas extends Canvas {
int Data1[];
int Data2[];
int maxX, maxY;
int DataColors[]={0xFF0FF0,0x00F0F0};
public BarCanvas(int[] Data1, int[] Data2, int maxX, int maxY) {
this.Data1=Data1;
this.Data2=Data2;
this.maxX=maxX;
this.maxY=maxY;
}
public void paint(Graphics g) {
int width=this.getWidth();
int height=this.getHeight();
g.setColor(0xFFFFFF);
g.fillRect(0,0,width,height);
g.setColor(0x000000);
g.drawLine(0,height,0,0);
g.drawLine(0,height-1,width,height-1);
int deltaX=width/(maxX+1);
int deltaY=height/maxY;
int barWidth=deltaX/4;
g.setColor(DataColors[0]);
for (int i=0; i<Data1.length; i++) {
g.fillRect(deltaX*i, height-deltaY*Data1[i], barWidth, deltaY*Data1[i]);
}
g.setColor(DataColors[1]);
for (int i=0; i<Data2.length; i++) {
g.fillRect(deltaX*i+barWidth, height-deltaY*Data2[i], barWidth, deltaY*Data2[i]);
}
}
}
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