How to write string in small font in J2me?

[dahui]

I used the following code to do the test. And I find that the small font has the same char width as the medium font.

Font sFONT = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_SMALL);
Font mFONT = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_MEDIUM);
getGraphics().drawString("small width:" + sFONT.charWidth('A'),
10, 40, Graphics.TOP | Graphics.LEFT);
getGraphics().drawString("medium width:" + mFONT.charWidth('A'),
10, 60, Graphics.TOP | Graphics.LEFT);

I want to use the small font in my J2me application. How can I change the font to small ?

Thanks.

[grahamhughes]

Graphics.setFont();

Graham.

[im2amit]

Try this -
<php>
Font sFONT = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_SMALL);
Font mFONT = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_MEDIUM);
Graphics.setFont(sFONT);
getGraphics().drawString("small width:" + sFONT.charWidth('A'),
10, 40, Graphics.TOP | Graphics.LEFT);
Graphics.setFont(mFONT );
getGraphics().drawString("medium width:" + mFONT.charWidth('A'),
10, 60, Graphics.TOP | Graphics.LEFT);
</php>

thanks,
~Amitabh

[dahui]

thanks. It does work on the WTK's default emulator but it does not work well on the S60 3rd FP2 emulator.

In the S60 3rd, the small font's char is the same as the medium font char. Any one has the experience on the show small font in the J2me application?


package com.dh.j2me.font;

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;

public class FontCanvas extends Canvas {

protected void paint(Graphics g) {
int x = 0;
int y = 0;
int w = getWidth();
int h = getHeight();

g.setColor(0xFFFFFF);
g.fillRect(x, y, w, h);

Font fontSmall = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_SMALL);
Font fontMedium = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_MEDIUM);
Font fontLarge = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN, Font.SIZE_LARGE);

g.setColor(0x000000);


g.setFont(fontSmall);
y = paintTextRow(g, "AAAA" + fontSmall.charWidth('A'), x, y);

g.setFont(fontMedium);
y = paintTextRow(g, "AAAA" + fontMedium.charWidth('A'), x, y);

g.setFont(fontLarge);
y = paintTextRow(g, "AAAA" + fontLarge.charWidth('A'), x, y);

}


private int paintTextRow(Graphics g, String text, int x, int y)
{
int w = getWidth();

Font font = g.getFont();
for (int j = 0; j < text.length(); j++)
{
char c = text.charAt(j);
int cw = font.charWidth(c);
if (x + cw > w)
{
x = 0;
y += font.getHeight();
}
g.drawChar(c, x, y, Graphics.TOP | Graphics.LEFT);
x += cw;
}
y += font.getHeight();
return y;
}

}

Try this -

Font sFONT = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_SMALL);
Font mFONT = Font.getFont(Font.FACE_SYSTEM,Font.STYLE_BOLD,Font.SIZE_MEDIUM);
Graphics.setFont(sFONT);
getGraphics().drawString("small width:" + sFONT.charWidth('A'),
10, 40, Graphics.TOP | Graphics.LEFT);
Graphics.setFont(mFONT );
getGraphics().drawString("medium width:" + mFONT.charWidth('A'),
10, 60, Graphics.TOP | Graphics.LEFT);

thanks,
~Amitabh

[dahui]

In S60 5th, we can use the DirectUtils.getFont() (It's nokia's native API) to get/set the font for your preferred font size. But in the S60 3th, no getFont() exists for the DirectUtils class and the J2me's stand Graphics.getFont() for small font does NOT work well.

It is too strange. The Nokia's future is not so bright for this kind of problem should not existed at all.

[grahamhughes]

Font smallFont = Font.getFont(Font.FACE_PROPORTIONAL, Font.STYLE_PLAIN, Font.SIZE_SMALL);
g.setFont(smallFont);
g.drawString("this is as small as it gets", 0, 0, Graphics.TOP | Graphics.LEFT);

This will display the smallest font available from the implementation.

Note that the MIDP specification does not require implementations to provide different sizes of font. The only rule is that SIZE_SMALL will not give you a larger font than SIZE_MEDIUM (and likewise, SIZE_MEDIUM will not be larger than SIZE_LARGE). On many devices, only one font is available, and all font options will yield the same font. Similarly, face and style options are simply requests... the font you get back might not honour them. You might always get the same font, no matter what arguments you pass.

Graham.

[dahui]

Yes. You are right. Thanks.