Paintbrush in JAVA

Question

I am trying to make a paintbrush kind of application in JAVA - wherein i have taken 2 canvases - one on a 1:1 scale and the other on a 6:1 scale. to draw on the canvases, i am using a 2-dimensional array of ints. i make changes to this array for drawing different shapes. I mean my paint() method for the 1:1 canvas has something like this in it:
public void paint(Graphics g)
     for(int i=0;i<72;i++)
     for(int j=0;j<14;j++)
          if(logo.pic_ref[i][j]==0)
               g.setColor(Color.black);
          else
               g.setColor(new Color(0,246,0));
          g.fillRect(i,j,1,1);
where pic_ref[][] is the array where is store the references for the canvases.
Now i want to add a utility for adding text to the canvases and this is where I am stuck. Further, I finally want to save this whole picture, including any text that I add, on the 1:1 canvas as a Jpeg file. I have no idea how to achieve this also. Can anybody please help me out with this???
P.S I DO NOT WANT TO USE ANY THIRD PARTY SOFTWARE.

Answer 1

hi!
well... as i said before, i am trying to develop a paintbrush kind of application in Java... where i take the pixel information in a 2D array of ints. I have been able to achieve the drawing of all the shapes. Now i want to add text to the canvas.I am putting Text using drawString method of graphics to put some text on the canvas. Now after putting this text on canvas I am trying to find follwoing info. Is this possible.
1. What is the total width of the String. e.g. if String is "Hello How Are you" the width of whole String.
2. What will be the height of the String.
3. What are the pixel this string is using for drawing. What I mean say if I am drawing "H" in say using 10x10 pixel rectangle(of course it should depend upon the Font Size and style). Which pixel will be Black(color of the text) and which pixel will be white(color of canvas).
You see the idea for getting this info is that I want to make an array which is in 0 and 1 where "0" stands for Black and "1" stands for white. and once I have this I can use it in other formats.
I hope you get the idea now about what i am trying to do and can help me out with this. I am in a real fix.
Thanks in advance for the help extended.
regards,
Meera