/**
- * Returns a border that is suitable for a button.
+ * Returns a border for drawing push buttons.
*
* <p>The colors of the border are retrieved from the
* <code>UIDefaults</code> of the currently active look and feel
/**
+ * Returns a border for drawing radio buttons.
+ *
+ * <p>The colors of the border are retrieved from the
+ * <code>UIDefaults</code> of the currently active look and feel
+ * using the keys <code>“RadioButton.shadow”</code>,
+ * <code>“RadioButton.darkShadow”</code>,
+ * <code>“RadioButton.light”</code>, and
+ * <code>“RadioButton.highlight”</code>.
+ *
+ * <p><img src="BasicBorders.RadioButtonBorder-1.png" width="300"
+ * height="135" alt="[A screen shot of the returned border]" />
+ *
+ * @return a {@link
+ * javax.swing.plaf.BorderUIResource#CompoundBorderUIResource}
+ * whose outer border is a {@link #RadioButtonBorder} and whose
+ * inner border is a {@link #MarginBorder}.
+ */
+ public static Border getRadioButtonBorder()
+ {
+ UIDefaults defaults;
+ Border outer;
+
+ defaults = UIManager.getLookAndFeelDefaults();
+
+ /* The keys for UIDefaults have been determined by writing a
+ * test program that dumps the UIDefaults to stdout; that program
+ * was run on a JDK 1.4.1_01 for GNU/Linux. Note that in the API,
+ * the key "light" is usually called "highlight", and "highlight"
+ * is usually called "lightHighlight".
+ */
+ outer = new RadioButtonBorder(
+ defaults.getColor("RadioButton.shadow"),
+ defaults.getColor("RadioButton.darkShadow"),
+ defaults.getColor("RadioButton.light"),
+ defaults.getColor("RadioButton.highlight"));
+
+ /* While the inner border is shared between multiple buttons, we
+ * do not share the outer border because RadioButtonBorders, being
+ * ButtonBorders, store their border colors. We cannot guarantee
+ * that the colors (which come from UIDefaults) are unchanged
+ * between invocations of getButtonBorder. We could store the last
+ * colors, and share the button border if the colors are the same
+ * as in the last invocation, but it probably is not worth the
+ * effort.
+ */
+ return new BorderUIResource.CompoundBorderUIResource(
+ outer,
+ /* inner */ getMarginBorder());
+ }
+
+
+ /**
+ * Returns a border for drawing toggle buttons.
+ *
+ * <p>The colors of the border are retrieved from the
+ * <code>UIDefaults</code> of the currently active look and feel
+ * using the keys <code>“ToggleButton.shadow”</code>,
+ * <code>“ToggleButton.darkShadow”</code>,
+ * <code>“ToggleButton.light”</code>, and
+ * <code>“ToggleButton.highlight”</code>.
+ *
+ * <p><img src="BasicBorders.ToggleButtonBorder-1.png" width="270"
+ * height="135" alt="[A screen shot of the returned border]" />
+ *
+ * @return a {@link
+ * javax.swing.plaf.BorderUIResource#CompoundBorderUIResource}
+ * whose outer border is a {@link #ToggleButtonBorder} and whose
+ * inner border is a {@link #MarginBorder}.
+ */
+ public static Border getToggleButtonBorder()
+ {
+ UIDefaults defaults;
+ Border outer;
+
+ defaults = UIManager.getLookAndFeelDefaults();
+
+ /* The keys for UIDefaults have been determined by writing a
+ * test program that dumps the UIDefaults to stdout; that program
+ * was run on a JDK 1.4.1_01 for GNU/Linux. Note that in the API,
+ * the key "light" is usually called "highlight", and "highlight"
+ * is usually called "lightHighlight".
+ */
+ outer = new ToggleButtonBorder(
+ defaults.getColor("ToggleButton.shadow"),
+ defaults.getColor("ToggleButton.darkShadow"),
+ defaults.getColor("ToggleButton.light"),
+ defaults.getColor("ToggleButton.highlight"));
+
+ /* While the inner border is shared between multiple buttons, we
+ * do not share the outer border because ToggleButtonBorders, being
+ * ButtonBorders, store their border colors. We cannot guarantee
+ * that the colors (which come from UIDefaults) are unchanged
+ * between invocations of getButtonBorder. We could store the last
+ * colors, and share the button border if the colors are the same
+ * as in the last invocation, but it probably is not worth the
+ * effort.
+ */
+ return new BorderUIResource.CompoundBorderUIResource(
+ outer,
+ /* inner */ getMarginBorder());
+ }
+
+
+ /**
+ * Returns a border for drawing a two-pixel thick separator line
+ * below menu bars.
+ *
+ * <p>The colors of the border are retrieved from the
+ * <code>UIDefaults</code> of the currently active look and feel
+ * using the keys <code>“MenuBar.shadow”</code> and
+ * <code>“MenuBar.highlight”</code>.
+ *
+ * <p><img src="BasicBorders.MenuBarBorder-1.png" width="500"
+ * height="140" alt="[A screen shot of a JMenuBar with this border]" />
+ *
+ * @return a {@link #MenuBarBorder}.
+ *
+ * @see javax.swing.JMenuBar
+ */
+ public static Border getMenuBarBorder()
+ {
+ UIDefaults defaults;
+
+ defaults = UIManager.getLookAndFeelDefaults();
+ return new MenuBarBorder(defaults.getColor("MenuBar.shadow"),
+ defaults.getColor("MenuBar.highlight"));
+ }
+
+
+ /**
* Returns a shared MarginBorder.
*/
static Border getMarginBorder() // intentionally not public
}
}
-
+
+ /**
+ * A border for drawing a separator line below JMenuBar.
+ *
+ * <p><img src="BasicBorders.MenuBarBorder-1.png" width="500"
+ * height="140" alt="[A screen shot of a JMenuBar with this border]" />
+ *
+ * @author Sascha Brawer (brawer@dandelis.ch)
+ */
public static class MenuBarBorder
+ extends AbstractBorder
+ implements UIResource
{
+ /**
+ * Determined using the <code>serialver</code> tool
+ * of Apple/Sun JDK 1.3.1 on MacOS X 10.1.5.
+ */
+ static final long serialVersionUID = -6909056571935227506L;
+
+
+ /**
+ * The shadow color, which is used for the upper line of the
+ * two-pixel thick bottom edge.
+ */
+ private Color shadow;
+
+
+ /**
+ * The highlight color, which is used for the lower line of the
+ * two-pixel thick bottom edge.
+ */
+ private Color highlight;
+
+
+ /**
+ * Constructs a new MenuBarBorder for drawing a JMenuBar in
+ * the Basic look and feel.
+ *
+ * <p><img src="BasicBorders.MenuBarBorder-1.png" width="500"
+ * height="140" alt="[A screen shot of a JMenuBar with this
+ * border]" />
+ *
+ * @param shadow the shadow color, which is used for the upper
+ * line of the two-pixel thick bottom edge.
+ *
+ * @param highlight the shadow color, which is used for the lower
+ * line of the two-pixel thick bottom edge.
+ */
public MenuBarBorder(Color shadow, Color highlight)
{
+ /* These colors usually come from the UIDefaults of the current
+ * look and feel. Use fallback values if the colors are not
+ * supplied. The API specification is silent about what
+ * behavior is expected for null colors, so users should not
+ * rely on this fallback (which is why it is not documented in
+ * the above Javadoc).
+ */
+ this.shadow = (shadow != null) ? shadow : Color.gray;
+ this.highlight = (highlight != null) ? highlight : Color.white;
+ }
+
+
+ /**
+ * Paints the MenuBarBorder around a given component.
+ *
+ * @param c the component whose border is to be painted, usually
+ * an instance of {@link javax.swing.JMenuBar}.
+ *
+ * @param g the graphics for painting.
+ * @param x the horizontal position for painting the border.
+ * @param y the vertical position for painting the border.
+ * @param width the width of the available area for painting the border.
+ * @param height the height of the available area for painting the border.
+ */
+ public void paintBorder(Component c, Graphics g,
+ int x, int y, int width, int height)
+ {
+ Color oldColor;
+
+ /* To understand this code, it might be helpful to look at the
+ * image "BasicBorders.MenuBarBorder-1.png" that is included
+ * with the JavaDoc. It is located in the "doc-files"
+ * subdirectory.
+ */
+ oldColor = g.getColor();
+ y = y + height - 2;
+ try
+ {
+ g.setColor(shadow);
+ g.drawLine(x, y, x + width - 2, y);
+ g.drawLine(x, y + 1, x, y + 1);
+ g.drawLine(x + width - 2, y + 1, x + width - 2, y + 1);
+
+ g.setColor(highlight);
+ g.drawLine(x + 1, y + 1, x + width - 3, y + 1);
+ g.drawLine(x + width - 1, y, x + width - 1, y + 1);
+ }
+ finally
+ {
+ g.setColor(oldColor);
+ }
+ }
+
+
+ /**
+ * Measures the width of this border.
+ *
+ * @param c the component whose border is to be measured.
+ *
+ * @return an Insets object whose <code>left</code>,
+ * <code>right</code>, <code>top</code> and
+ * <code>bottom</code> fields indicate the width of the
+ * border at the respective edge.
+ *
+ * @see #getBorderInsets(java.awt.Component, java.awt.Insets)
+ */
+ public Insets getBorderInsets(Component c)
+ {
+ /* There is no obvious reason for overriding this method, but we
+ * try to have exactly the same API as the Sun reference
+ * implementation.
+ */
+ return getBorderInsets(c, null);
}
- } // class MenuBarBorder
+
+
+ /**
+ * Measures the width of this border, storing the results into a
+ * pre-existing Insets object.
+ *
+ * @param insets an Insets object for holding the result values.
+ * After invoking this method, the <code>left</code>,
+ * <code>right</code>, <code>top</code> and
+ * <code>bottom</code> fields indicate the width of the
+ * border at the respective edge.
+ *
+ * @return the same object that was passed for <code>insets</code>.
+ *
+ * @see #getBorderInsets()
+ */
+ public Insets getBorderInsets(Component c, Insets insets)
+ {
+ /* The exact amount has been determined using a test program
+ * that was run on the Apple/Sun JDK 1.3.1 on MacOS X, and the
+ * Sun JDK 1.4.1_01 on GNU/Linux for x86. Both gave [0,0,2,0],
+ * which was expected from looking at the screen shot.
+ */
+ if (insets == null)
+ return new Insets(0, 0, 2, 0);
+
+ insets.left = insets.right = insets.top = 0;
+ insets.bottom = 2;
+ return insets;
+ }
+ }
+
+
+ /**
+ * A border for drawing radio buttons in the Basic look and feel.
+ *
+ * <p><img src="BasicBorders.RadioButtonBorder-1.png" width="300"
+ * height="135" alt="[A screen shot of this border]" />
+ *
+ * <p>Note about the screen shot: Normally, the
+ * <code>borderPainted</code> property is <code>false</code> for
+ * JRadioButtons. For this screen shot, it has been set to
+ * <code>true</code> so the borders get drawn. Also, a
+ * concretization of the Basic look and would typically provide
+ * icons for the various states of radio buttons.
+ *
+ * <p>Note that the focus rectangle is invisible If the radio button
+ * is currently selected. While it might be debatable whether this
+ * makes a lot of sense, this behavior can be observed in the Sun
+ * reference implementation (in JDK 1.3.1 and 1.4.1). The Classpath
+ * implementation tries to exactly replicate the JDK appearance.
+ *
+ * @see javax.swing.plaf.basic.BasicGraphicsUtils#drawBezel
+ *
+ * @author Sascha Brawer (brawer@dandelis.ch)
+ */
public static class RadioButtonBorder
+ extends ButtonBorder
{
- } // class RadioButtonBorder
+ /**
+ * Determined using the <code>serialver</code> tool
+ * of Apple/Sun JDK 1.3.1 on MacOS X 10.1.5.
+ */
+ static final long serialVersionUID = 1596945751743747369L;
+
+
+ /**
+ * Constructs a new border for drawing a JRadioButton in
+ * the Basic look and feel.
+ *
+ * @param shadow the shadow color.
+ * @param darkShadow a darker variant of the shadow color.
+ * @param highlight the highlight color.
+ * @param lightHighlight a brighter variant of the highlight color.
+ */
+ public RadioButtonBorder(Color shadow, Color darkShadow,
+ Color highlight, Color lightHighlight)
+ {
+ /* The superclass ButtonBorder substitutes null arguments
+ * with fallback colors.
+ */
+ super(shadow, darkShadow, highlight, lightHighlight);
+ }
+
+
+ /**
+ * Paints the RadioButtonBorder around a given component.
+ *
+ * <p>The Sun implementation always seems to draw exactly
+ * the same border, irrespective of the state of the button.
+ * This is rather surprising, but GNU Classpath emulates the
+ * observable behavior.
+ *
+ * @param c the component whose border is to be painted.
+ * @param g the graphics for painting.
+ * @param x the horizontal position for painting the border.
+ * @param y the vertical position for painting the border.
+ * @param width the width of the available area for painting the border.
+ * @param height the height of the available area for painting the border.
+ *
+ * @see javax.swing.plaf.basic.BasicGraphicsUtils#drawBezel
+ */
+ public void paintBorder(Component c, Graphics g,
+ int x, int y, int width, int height)
+ {
+ AbstractButton button = null;
+ ButtonModel bmodel = null;
+ boolean lowered = false;
+ boolean focused = false;
+
+ if (c instanceof AbstractButton)
+ {
+ button = (AbstractButton) c;
+ bmodel = button.getModel();
+ }
+
+ if (bmodel != null)
+ {
+ lowered = button.isSelected()
+ || (/* mouse inside */ bmodel.isArmed() && bmodel.isPressed());
+ focused = button.hasFocus() && button.isFocusPainted();
+ }
+
+ if (lowered)
+ BasicGraphicsUtils.drawLoweredBezel(g, x, y, width, height,
+ shadow, darkShadow,
+ highlight, lightHighlight);
+ else
+ BasicGraphicsUtils.drawBezel(g, x, y, width, height,
+ /* isPressed */ false,
+ /* isPefault */ focused,
+ shadow, darkShadow,
+ highlight, lightHighlight);
+ }
+
+
+ /**
+ * Measures the width of this border.
+ *
+ * @param c the component whose border is to be measured.
+ *
+ * @return an Insets object whose <code>left</code>,
+ * <code>right</code>, <code>top</code> and
+ * <code>bottom</code> fields indicate the width of the
+ * border at the respective edge.
+ *
+ * @see #getBorderInsets(java.awt.Component, java.awt.Insets)
+ */
+ public Insets getBorderInsets(Component c)
+ {
+ /* There is no obvious reason for overriding this method, but we
+ * try to have exactly the same API as the Sun reference
+ * implementation.
+ */
+ return getBorderInsets(c, null);
+ }
+
+
+ /**
+ * Measures the width of this border, storing the results into a
+ * pre-existing Insets object.
+ *
+ * @param insets an Insets object for holding the result values.
+ * After invoking this method, the <code>left</code>,
+ * <code>right</code>, <code>top</code> and
+ * <code>bottom</code> fields indicate the width of the
+ * border at the respective edge.
+ *
+ * @return the same object that was passed for <code>insets</code>.
+ *
+ * @see #getBorderInsets()
+ */
+ public Insets getBorderInsets(Component c, Insets insets)
+ {
+ /* The exact amount has been determined using a test program
+ * that was run on the Apple/Sun JDK 1.3.1 on MacOS X, and the
+ * Sun JDK 1.4.1_01 on GNU/Linux for x86. Both gave [2,2,2,2].
+ */
+ if (insets == null)
+ return new Insets(2, 2, 2, 2);
+
+ insets.left = insets.right = insets.top = insets.bottom = 2;
+ return insets;
+ }
+ }
+
+
public static class RolloverButtonBorder
{
} // class RolloverButtonBorder
{
}
} // class SplitPaneBorder
+
+
+ /**
+ * A border for toggle buttons in the Basic look and feel.
+ *
+ * <p><img src="BasicBorders.ToggleButtonBorder-1.png" width="270"
+ * height="135" alt="[A screen shot of this border]" />
+ *
+ * <p>The Sun implementation always seems to draw exactly
+ * the same border, irrespective of the state of the button.
+ * This is rather surprising, but GNU Classpath emulates the
+ * observable behavior.
+ *
+ * @see javax.swing.plaf.basic.BasicGraphicsUtils#drawBezel
+ *
+ * @author Sascha Brawer (brawer@dandelis.ch)
+ */
public static class ToggleButtonBorder
+ extends ButtonBorder
{
- } // class ToggleButtonBorder
-} // class BasicBorders
+ /**
+ * Determined using the <code>serialver</code> tool
+ * of Apple/Sun JDK 1.3.1 on MacOS X 10.1.5.
+ */
+ static final long serialVersionUID = -3528666548001058394L;
+
+
+ /**
+ * Constructs a new border for drawing a JToggleButton in
+ * the Basic look and feel.
+ *
+ * @param shadow the shadow color.
+ * @param darkShadow a darker variant of the shadow color.
+ * @param highlight the highlight color.
+ * @param lightHighlight a brighter variant of the highlight color.
+ */
+ public ToggleButtonBorder(Color shadow, Color darkShadow,
+ Color highlight, Color lightHighlight)
+ {
+ /* The superclass ButtonBorder substitutes null arguments
+ * with fallback colors.
+ */
+ super(shadow, darkShadow, highlight, lightHighlight);
+ }
+
+
+ /**
+ * Paints the ToggleButtonBorder around a given component.
+ *
+ * <p>The Sun implementation always seems to draw exactly
+ * the same border, irrespective of the state of the button.
+ * This is rather surprising, but GNU Classpath emulates the
+ * observable behavior.
+ *
+ * @param c the component whose border is to be painted.
+ * @param g the graphics for painting.
+ * @param x the horizontal position for painting the border.
+ * @param y the vertical position for painting the border.
+ * @param width the width of the available area for painting the border.
+ * @param height the height of the available area for painting the border.
+ *
+ * @see javax.swing.plaf.basic.BasicGraphicsUtils#drawBezel
+ */
+ public void paintBorder(Component c, Graphics g,
+ int x, int y, int width, int height)
+ {
+ /* The author of this code tried various variants for setting
+ * the state of the enclosed JToggleButton, but it seems that
+ * the drawn border is always identical. Weird, because this
+ * means that the user does not see whether the JToggleButton
+ * is selected or not.
+ */
+ BasicGraphicsUtils.drawBezel(g, x, y, width, height,
+ /* pressed */ false,
+ /* default */ false,
+ shadow, darkShadow,
+ highlight, lightHighlight);
+ }
+
+
+ /**
+ * Measures the width of this border.
+ *
+ * @param c the component whose border is to be measured.
+ *
+ * @return an Insets object whose <code>left</code>,
+ * <code>right</code>, <code>top</code> and
+ * <code>bottom</code> fields indicate the width of the
+ * border at the respective edge.
+ *
+ * @see #getBorderInsets(java.awt.Component, java.awt.Insets)
+ */
+ public Insets getBorderInsets(Component c)
+ {
+ /* There is no obvious reason for overriding this method, but we
+ * try to have exactly the same API as the Sun reference
+ * implementation.
+ */
+ return getBorderInsets(c, null);
+ }
+
+
+ /**
+ * Measures the width of this border, storing the results into a
+ * pre-existing Insets object.
+ *
+ * @param insets an Insets object for holding the result values.
+ * After invoking this method, the <code>left</code>,
+ * <code>right</code>, <code>top</code> and
+ * <code>bottom</code> fields indicate the width of the
+ * border at the respective edge.
+ *
+ * @return the same object that was passed for <code>insets</code>.
+ *
+ * @see #getBorderInsets()
+ */
+ public Insets getBorderInsets(Component c, Insets insets)
+ {
+ /* The exact amount has been determined using a test program
+ * that was run on the Apple/Sun JDK 1.3.1 on MacOS X, and the
+ * Sun JDK 1.4.1_01 on GNU/Linux for x86. Both gave [2,2,2,2].
+ */
+ if (insets == null)
+ return new Insets(2, 2, 2, 2);
+
+ insets.left = insets.right = insets.top = insets.bottom = 2;
+ return insets;
+ }
+ }
+}
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