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Thread: How to shift a String in a rectangle which is type of Canvas

  1. #1
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    Exclamation How to shift a String in a rectangle which is type of Canvas

    Hi,
    I had create a rectangle in Canvas like the textfield and now I can print my input in that rectangle, I want that how can I write the input when it's size is bigger than the rectangle! I want that when it's size is bigger than the rectangle the remain of my input must be shown and the input which I wrote earlier must be shifted! actualy I want to scroll my input in the rctangle, How can I do it? Could anyone show me sample code for it please?
    to scrolling the input in the rectangle I worte some code like below but when i scroll the input with Canvas.Right the String which I inserted after scrolling will be seprated to characters! Could you help me to solve it please?How could I shift the String when I click on Canvas.Right?

    public void copyStr(){
     
    tchar=this.text.toCharArray();
    copy=text.length()-1;
    textchar[cp]=tchar[copy];
    t[p]=textchar[cp];
    cp++;
    p++;
    if(text.length()>=9){
     
    shiftRight();
     
    }
    }
    public void shiftRight(){
    int m=0;
    String temp;
    char []te;
    for (int i=10;i<this.text.length()-1;i++){
    t[i-1]=t[i];
    }
    for(int i=10;i<this.text.length()-1;i++){
    textchar[m]=t[i];
    m++;
    }
    text=new String(textchar);
    }
     
    protected void keyPressed(int keyCode)
    {
    if(keyCode==-4){
    shiftRight();
    }
     
    long currentTime = System.currentTimeMillis();
    int pressedKeyNum = getNum(keyCode);
    if( pressedKeyNum >= 0 && pressedKeyNum <= 9 ) {
    if(keyCode == this.lastKeyStroke && currentTime - this.lastKeyStrokeTime < MIN_STROKE_TIME)
    {
    cursorplace++;
    cursor[cursorplace]='_';
    this.text = this.text.substring(0, this.text.length() - 1);
    this.text += KEY_MAP[pressedKeyNum][this.lastKeyStrokeIndex];
    this.lastKeyStrokeIndex++;
    copyStr();
    }
     
    else
    {
    this.text += KEY_MAP[pressedKeyNum][0];
    this.lastKeyStrokeIndex = 1;
    copyStr();
    }
     
    if(this.lastKeyStrokeIndex >= KEY_MAP[pressedKeyNum].length)
    {
    this.lastKeyStrokeIndex = 0;
    }
    else
    {
    if( pressedKeyNum == 10 ) {
    this.remove();
    }
    }
    this.lastKeyStroke = keyCode;
    this.lastKeyStrokeTime = System.currentTimeMillis();
    }
     
    }


  2. #2
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    Default Re: How to shift a String in a rectangle which is type of Canvas

    This thread has been cross posted here:

    http://www.java-forums.org/cldc-midp/41815-how-shift-string-rectangle-type-canvas.html

    Although cross posting is allowed, for everyone's benefit, please read:

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