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Using the Font Panel

You can enable the interaction between a text object and the Font panel using the setUsesFontPanel: method. Doing so is recommended for a text view that serves as a field editor, for example.

You can use the Font panel on objects other than standard text fields. The NSFontManager method setAction: sets the action (specified by a selector) that is sent up the first responder chain when a new font is selected. The default selector is changeFont:. Any object that receives this message from the responder chain should send a convertFont: message back to the NSFontManager to convert the font in a manner the user has specified.

This example assumes there is only one font selected:

– (void)changeFont:(id)sender

{

    NSFont *oldFont = [self font];

    NSFont *newFont = [sender convertFont:oldFont];

    [self setFont:newFont];

    return;

}

If multiple fonts are selected, changeFont: must send conversion messages for each selected font. This is useful for objects such as table views, which do not inherently respond to messages from the Font panel.

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