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package javax.swing.plaf.synth;

import java.awt.*;
import javax.swing.*;
import javax.swing.text.JTextComponent;
import javax.swing.border.*;
import javax.swing.plaf.UIResource;
import sun.swing.plaf.synth.SynthUI;

SynthBorder is a border that delegates to a Painter. The Insets are determined at construction time.
Author:Scott Violet
/** * SynthBorder is a border that delegates to a Painter. The Insets * are determined at construction time. * * @author Scott Violet */
class SynthBorder extends AbstractBorder implements UIResource { private SynthUI ui; private Insets insets; SynthBorder(SynthUI ui, Insets insets) { this.ui = ui; this.insets = insets; } SynthBorder(SynthUI ui) { this(ui, null); } public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) { JComponent jc = (JComponent)c; SynthContext context = ui.getContext(jc); SynthStyle style = context.getStyle(); if (style == null) { assert false: "SynthBorder is being used outside after the UI " + "has been uninstalled"; return; } ui.paintBorder(context, g, x, y, width, height); context.dispose(); }
This default implementation returns a new Insets instance where the top, left, bottom, and right fields are set to 0.
Params:
  • c – the component for which this border insets value applies
Returns:the new Insets object initialized to 0
/** * This default implementation returns a new <code>Insets</code> * instance where the <code>top</code>, <code>left</code>, * <code>bottom</code>, and * <code>right</code> fields are set to <code>0</code>. * @param c the component for which this border insets value applies * @return the new <code>Insets</code> object initialized to 0 */
public Insets getBorderInsets(Component c) { return getBorderInsets(c, null); }
Reinitializes the insets parameter with this Border's current Insets.
Params:
  • c – the component for which this border insets value applies
  • insets – the object to be reinitialized
Returns:the insets object
/** * Reinitializes the insets parameter with this Border's current Insets. * @param c the component for which this border insets value applies * @param insets the object to be reinitialized * @return the <code>insets</code> object */
public Insets getBorderInsets(Component c, Insets insets) { if (this.insets != null) { if (insets == null) { insets = new Insets(this.insets.top, this.insets.left, this.insets.bottom, this.insets.right); } else { insets.top = this.insets.top; insets.bottom = this.insets.bottom; insets.left = this.insets.left; insets.right = this.insets.right; } } else if (insets == null) { insets = new Insets(0, 0, 0, 0); } else { insets.top = insets.bottom = insets.left = insets.right = 0; } if (c instanceof JComponent) { Region region = Region.getRegion((JComponent)c); Insets margin = null; if ((region == Region.ARROW_BUTTON || region == Region.BUTTON || region == Region.CHECK_BOX || region == Region.CHECK_BOX_MENU_ITEM || region == Region.MENU || region == Region.MENU_ITEM || region == Region.RADIO_BUTTON || region == Region.RADIO_BUTTON_MENU_ITEM || region == Region.TOGGLE_BUTTON) && (c instanceof AbstractButton)) { margin = ((AbstractButton)c).getMargin(); } else if ((region == Region.EDITOR_PANE || region == Region.FORMATTED_TEXT_FIELD || region == Region.PASSWORD_FIELD || region == Region.TEXT_AREA || region == Region.TEXT_FIELD || region == Region.TEXT_PANE) && (c instanceof JTextComponent)) { margin = ((JTextComponent)c).getMargin(); } else if (region == Region.TOOL_BAR && (c instanceof JToolBar)) { margin = ((JToolBar)c).getMargin(); } else if (region == Region.MENU_BAR && (c instanceof JMenuBar)) { margin = ((JMenuBar)c).getMargin(); } if (margin != null) { insets.top += margin.top; insets.bottom += margin.bottom; insets.left += margin.left; insets.right += margin.right; } } return insets; }
This default implementation returns false.
Returns:false
/** * This default implementation returns false. * @return false */
public boolean isBorderOpaque() { return false; } }