Java The Complete Reference, Seventh Edition

This method returns an array of strings that contains the names of the available font families. In addition, thegetAllFonts( )me ...

Creating and Selecting a Font To select a new font, you must first construct aFontobject that describes that font. OneFont const ...

class MyMouseAdapter extends MouseAdapter { SampleFonts sampleFonts; public MyMouseAdapter(SampleFonts sampleFonts) { this.sampl ...

Font getFont( ) Once you have obtained the currently selected font, you can retrieve information about it using various methods ...

which encapsulates various information about a font. Let’s begin by defining the common terminology used when describing fonts: ...

Displaying Multiple Lines of Text Perhaps the most common use ofFontMetricsis to determine the spacing between lines of text. Th ...

694 Part II: The Java Library // Advance to next line. void nextLine(String s, Graphics g) { FontMetrics fm = g.getFontMetrics() ...

Chapter 23: Introducing the AWT: Working with Windows, Graphics, and Text 695 g.setFont(f); drawCenteredString("This is centered ...

696 Part II: The Java Library // Demonstrate text alignment. import java.applet.*; import java.awt.*; import java.awt.event.*; i ...

Chapter 23: Introducing the AWT: Working with Windows, Graphics, and Text 697 g.setFont(f); if(fm == null) { fm = g.getFontMetri ...

case LEFTRIGHT: if(lineW < (int)(d.width*.75)) { g.drawString(line, 0, y); } else { int toFill = (d.width - lineW)/wc; int nu ...

The first three cases indrawString( )are simple. Each aligns the string that is passed in lineto the left or right edge or to th ...

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701 24 Using AWT Controls, Layout Managers, and Menus T his chapter continues our exploration of the Abstract Window Toolkit (AW ...

702 Part II: The Java Library Scroll bars Text editing These controls are subclasses ofComponent. Adding and Removing Controls ...

Chapter 24: Using AWT Controls, Layout Managers, and Menus 703 Label( ) throws HeadlessException Label(Stringstr) throws Headles ...

704 Part II: The Java Library Using Buttons Perhaps the most widely used control is the push button. Apush buttonis a component ...

no = new Button("No"); maybe = new Button("Undecided"); add(yes); add(no); add(maybe); yes.addActionListener(this); no.addAction ...

706 Part II: The Java Library getSource( )method to the button objects that you added to the window. To do this, you must keep a ...

Chapter 24: Using AWT Controls, Layout Managers, and Menus 707 which button has been pushed by using its object reference. It is ...