文本编辑器源文件(java语言)

文本编辑器源文件(java语言)(23)         cus.cusory= cus.liney*cus.h;
        cus.paint(getGraphics());
    }
   
    public void keycusor(int x,int y)
    {
        cus.linex+= x;
        cus.liney+= y;
        cus.cusorx+= x*cus.w;
        cus.cusory+= y*cus.h;
        int i=0;
        cus.index=0;
        for(;i<cus.liney+sc.offsety-1;i++)
            cus.index+= sc.length[i];
        cus.index+=cus.linex-1+sc.offsetx;
        cus.paint(getGraphics());
    }

    public void add(char ch)
    {
        if(totle==0)
            totle= 1;
        for(int i= totle;i>=cus.index;i--)
            text[i]= text[i-1];
        text[cus.index]= ch;
        totle++;
        sc.length[cus.liney]+= 1;
       
        repaint();
        if(ch=='\n')
        {
            cus.linex= 1;
            cus.liney+= 1;
            cus.cusorx= 3;