JDK8/Java8源码在线阅读
/*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
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*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package javax.swing.plaf.basic;
import javax.swing.*;
import javax.swing.border.*;
import javax.swing.plaf.*;
import javax.swing.text.JTextComponent;
import java.awt.Component;
import java.awt.Insets;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Color;
import java.awt.Graphics;
/**
* Factory object that can vend Borders appropriate for the basic L & F.
* @author Georges Saab
* @author Amy Fowler
*/
public class BasicBorders {
public static Border getButtonBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border buttonBorder = new BorderUIResource.CompoundBorderUIResource(
new BasicBorders.ButtonBorder(
table.getColor("Button.shadow"),
table.getColor("Button.darkShadow"),
table.getColor("Button.light"),
table.getColor("Button.highlight")),
new MarginBorder());
return buttonBorder;
}
public static Border getRadioButtonBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border radioButtonBorder = new BorderUIResource.CompoundBorderUIResource(
new BasicBorders.RadioButtonBorder(
table.getColor("RadioButton.shadow"),
table.getColor("RadioButton.darkShadow"),
table.getColor("RadioButton.light"),
table.getColor("RadioButton.highlight")),
new MarginBorder());
return radioButtonBorder;
}
public static Border getToggleButtonBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border toggleButtonBorder = new BorderUIResource.CompoundBorderUIResource(
new BasicBorders.ToggleButtonBorder(
table.getColor("ToggleButton.shadow"),
table.getColor("ToggleButton.darkShadow"),
table.getColor("ToggleButton.light"),
table.getColor("ToggleButton.highlight")),
new MarginBorder());
return toggleButtonBorder;
}
public static Border getMenuBarBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border menuBarBorder = new BasicBorders.MenuBarBorder(
table.getColor("MenuBar.shadow"),
table.getColor("MenuBar.highlight")
);
return menuBarBorder;
}
public static Border getSplitPaneBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border splitPaneBorder = new BasicBorders.SplitPaneBorder(
table.getColor("SplitPane.highlight"),
table.getColor("SplitPane.darkShadow"));
return splitPaneBorder;
}
/**
* Returns a border instance for a JSplitPane divider
* @since 1.3
*/
public static Border getSplitPaneDividerBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border splitPaneBorder = new BasicBorders.SplitPaneDividerBorder(
table.getColor("SplitPane.highlight"),
table.getColor("SplitPane.darkShadow"));
return splitPaneBorder;
}
public static Border getTextFieldBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border textFieldBorder = new BasicBorders.FieldBorder(
table.getColor("TextField.shadow"),
table.getColor("TextField.darkShadow"),
table.getColor("TextField.light"),
table.getColor("TextField.highlight"));
return textFieldBorder;
}
public static Border getProgressBarBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border progressBarBorder = new BorderUIResource.LineBorderUIResource(Color.green, 2);
return progressBarBorder;
}
public static Border getInternalFrameBorder() {
UIDefaults table = UIManager.getLookAndFeelDefaults();
Border internalFrameBorder = new BorderUIResource.CompoundBorderUIResource(
new BevelBorder(BevelBorder.RAISED,
table.getColor("InternalFrame.borderLight"),
table.getColor("InternalFrame.borderHighlight"),
table.getColor("InternalFrame.borderDarkShadow"),
table.getColor("InternalFrame.borderShadow")),
BorderFactory.createLineBorder(
table.getColor("InternalFrame.borderColor"), 1));
return internalFrameBorder;
}
/**
* Special thin border for rollover toolbar buttons.
* @since 1.4
*/
public static class RolloverButtonBorder extends ButtonBorder {
public RolloverButtonBorder(Color shadow, Color darkShadow,
Color highlight, Color lightHighlight) {
super(shadow, darkShadow, highlight, lightHighlight);
}
public void paintBorder( Component c, Graphics g, int x, int y, int w, int h ) {
AbstractButton b = (AbstractButton) c;
ButtonModel model = b.getModel();
Color shade = shadow;
Component p = b.getParent();
if (p != null && p.getBackground().equals(shadow)) {
shade = darkShadow;
}
if ((model.isRollover() && !(model.isPressed() && !model.isArmed())) ||
model.isSelected()) {
Color oldColor = g.getColor();
g.translate(x, y);
if (model.isPressed() && model.isArmed() || model.isSelected()) {
// Draw the pressd button
g.setColor(shade);
g.drawRect(0, 0, w-1, h-1);
g.setColor(lightHighlight);
g.drawLine(w-1, 0, w-1, h-1);
g.drawLine(0, h-1, w-1, h-1);
} else {
// Draw a rollover button
g.setColor(lightHighlight);
g.drawRect(0, 0, w-1, h-1);
g.setColor(shade);
g.drawLine(w-1, 0, w-1, h-1);
g.drawLine(0, h-1, w-1, h-1);
}
g.translate(-x, -y);
g.setColor(oldColor);
}
}
}
/**
* A border which is like a Margin border but it will only honor the margin
* if the margin has been explicitly set by the developer.
*
* Note: This is identical to the package private class
* MetalBorders.RolloverMarginBorder and should probably be consolidated.
*/
static class RolloverMarginBorder extends EmptyBorder {
public RolloverMarginBorder() {
super(3,3,3,3); // hardcoded margin for JLF requirements.
}
public Insets getBorderInsets(Component c, Insets insets) {
Insets margin = null;
if (c instanceof AbstractButton) {
margin = ((AbstractButton)c).getMargin();
}
if (margin == null || margin instanceof UIResource) {
// default margin so replace
insets.left = left;
insets.top = top;
insets.right = right;
insets.bottom = bottom;
} else {
// Margin which has been explicitly set by the user.
insets.left = margin.left;
insets.top = margin.top;
insets.right = margin.right;
insets.bottom = margin.bottom;
}
return insets;
}
}
public static class ButtonBorder extends AbstractBorder implements UIResource {
protected Color shadow;
protected Color darkShadow;
protected Color highlight;
protected Color lightHighlight;
public ButtonBorder(Color shadow, Color darkShadow,
Color highlight, Color lightHighlight) {
this.shadow = shadow;
this.darkShadow = darkShadow;
this.highlight = highlight;
this.lightHighlight = lightHighlight;
}
public void paintBorder(Component c, Graphics g, int x, int y,
int width, int height) {
boolean isPressed = false;
boolean isDefault = false;
if (c instanceof AbstractButton) {
AbstractButton b = (AbstractButton)c;
ButtonModel model = b.getModel();
isPressed = model.isPressed() && model.isArmed();
if (c instanceof JButton) {
isDefault = ((JButton)c).isDefaultButton();
}
}
BasicGraphicsUtils.drawBezel(g, x, y, width, height,
isPressed, isDefault, shadow,
darkShadow, highlight, lightHighlight);
}
public Insets getBorderInsets(Component c, Insets insets) {
// leave room for default visual
insets.set(2, 3, 3, 3);
return insets;
}
}
public static class ToggleButtonBorder extends ButtonBorder {
public ToggleButtonBorder(Color shadow, Color darkShadow,
Color highlight, Color lightHighlight) {
super(shadow, darkShadow, highlight, lightHighlight);
}
public void paintBorder(Component c, Graphics g, int x, int y,
int width, int height) {
BasicGraphicsUtils.drawBezel(g, x, y, width, height,
false, false,
shadow, darkShadow,
highlight, lightHighlight);
}
public Insets getBorderInsets(Component c, Insets insets) {
insets.set(2, 2, 2, 2);
return insets;
}
}
public static class RadioButtonBorder extends ButtonBorder {
public RadioButtonBorder(Color shadow, Color darkShadow,
Color highlight, Color lightHighlight) {
super(shadow, darkShadow, highlight, lightHighlight);
}
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
if (c instanceof AbstractButton) {
AbstractButton b = (AbstractButton)c;
ButtonModel model = b.getModel();
if (model.isArmed() && model.isPressed() || model.isSelected()) {
BasicGraphicsUtils.drawLoweredBezel(g, x, y, width, height,
shadow, darkShadow,
highlight, lightHighlight);
} else {
BasicGraphicsUtils.drawBezel(g, x, y, width, height,
false, b.isFocusPainted() && b.hasFocus(),
shadow, darkShadow,
highlight, lightHighlight);
}
} else {
BasicGraphicsUtils.drawBezel(g, x, y, width, height, false, false,
shadow, darkShadow, highlight, lightHighlight);
}
}
public Insets getBorderInsets(Component c, Insets insets) {
insets.set(2, 2, 2, 2);
return insets;
}
}
public static class MenuBarBorder extends AbstractBorder implements UIResource {
private Color shadow;
private Color highlight;
public MenuBarBorder(Color shadow, Color highlight) {
this.shadow = shadow;
this.highlight = highlight;
}
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
Color oldColor = g.getColor();
g.translate(x, y);
g.setColor(shadow);
g.drawLine(0, height-2, width, height-2);
g.setColor(highlight);
g.drawLine(0, height-1, width, height-1);
g.translate(-x,-y);
g.setColor(oldColor);
}
public Insets getBorderInsets(Component c, Insets insets) {
insets.set(0, 0, 2, 0);
return insets;
}
}
public static class MarginBorder extends AbstractBorder implements UIResource {
public Insets getBorderInsets(Component c, Insets insets) {
Insets margin = null;
//
// Ideally we'd have an interface defined for classes which
// support margins (to avoid this hackery), but we've
// decided against it for simplicity
//
if (c instanceof AbstractButton) {
AbstractButton b = (AbstractButton)c;
margin = b.getMargin();
} else if (c instanceof JToolBar) {
JToolBar t = (JToolBar)c;
margin = t.getMargin();
} else if (c instanceof JTextComponent) {
JTextComponent t = (JTextComponent)c;
margin = t.getMargin();
}
insets.top = margin != null? margin.top : 0;
insets.left = margin != null? margin.left : 0;
insets.bottom = margin != null? margin.bottom : 0;
insets.right = margin != null? margin.right : 0;
return insets;
}
}
public static class FieldBorder extends AbstractBorder implements UIResource {
protected Color shadow;
protected Color darkShadow;
protected Color highlight;
protected Color lightHighlight;
public FieldBorder(Color shadow, Color darkShadow,
Color highlight, Color lightHighlight) {
this.shadow = shadow;
this.highlight = highlight;
this.darkShadow = darkShadow;
this.lightHighlight = lightHighlight;
}
public void paintBorder(Component c, Graphics g, int x, int y,
int width, int height) {
BasicGraphicsUtils.drawEtchedRect(g, x, y, width, height,
shadow, darkShadow,
highlight, lightHighlight);
}
public Insets getBorderInsets(Component c, Insets insets) {
Insets margin = null;
if (c instanceof JTextComponent) {
margin = ((JTextComponent)c).getMargin();
}
insets.top = margin != null? 2+margin.top : 2;
insets.left = margin != null? 2+margin.left : 2;
insets.bottom = margin != null? 2+margin.bottom : 2;
insets.right = margin != null? 2+margin.right : 2;
return insets;
}
}
/**
* Draws the border around the divider in a splitpane
* (when BasicSplitPaneUI is used). To get the appropriate effect, this
* needs to be used with a SplitPaneBorder.
*/
static class SplitPaneDividerBorder implements Border, UIResource {
Color highlight;
Color shadow;
SplitPaneDividerBorder(Color highlight, Color shadow) {
this.highlight = highlight;
this.shadow = shadow;
}
public void paintBorder(Component c, Graphics g, int x, int y,
int width, int height) {
if (!(c instanceof BasicSplitPaneDivider)) {
return;
}
Component child;
Rectangle cBounds;
JSplitPane splitPane = ((BasicSplitPaneDivider)c).
getBasicSplitPaneUI().getSplitPane();
Dimension size = c.getSize();
child = splitPane.getLeftComponent();
// This is needed for the space between the divider and end of
// splitpane.
g.setColor(c.getBackground());
g.drawRect(x, y, width - 1, height - 1);
if(splitPane.getOrientation() == JSplitPane.HORIZONTAL_SPLIT) {
if(child != null) {
g.setColor(highlight);
g.drawLine(0, 0, 0, size.height);
}
child = splitPane.getRightComponent();
if(child != null) {
g.setColor(shadow);
g.drawLine(size.width - 1, 0, size.width - 1, size.height);
}
} else {
if(child != null) {
g.setColor(highlight);
g.drawLine(0, 0, size.width, 0);
}
child = splitPane.getRightComponent();
if(child != null) {
g.setColor(shadow);
g.drawLine(0, size.height - 1, size.width,
size.height - 1);
}
}
}
public Insets getBorderInsets(Component c) {
Insets insets = new Insets(0,0,0,0);
if (c instanceof BasicSplitPaneDivider) {
BasicSplitPaneUI bspui = ((BasicSplitPaneDivider)c).
getBasicSplitPaneUI();
if (bspui != null) {
JSplitPane splitPane = bspui.getSplitPane();
if (splitPane != null) {
if (splitPane.getOrientation() ==
JSplitPane.HORIZONTAL_SPLIT) {
insets.top = insets.bottom = 0;
insets.left = insets.right = 1;
return insets;
}
// VERTICAL_SPLIT
insets.top = insets.bottom = 1;
insets.left = insets.right = 0;
return insets;
}
}
}
insets.top = insets.bottom = insets.left = insets.right = 1;
return insets;
}
public boolean isBorderOpaque() { return true; }
}
/**
* Draws the border around the splitpane. To work correctly you should
* also install a border on the divider (property SplitPaneDivider.border).
*/
public static class SplitPaneBorder implements Border, UIResource {
protected Color highlight;
protected Color shadow;
public SplitPaneBorder(Color highlight, Color shadow) {
this.highlight = highlight;
this.shadow = shadow;
}
public void paintBorder(Component c, Graphics g, int x, int y,
int width, int height) {
if (!(c instanceof JSplitPane)) {
return;
}
// The only tricky part with this border is that the divider is
// not positioned at the top (for horizontal) or left (for vert),
// so this border draws to where the divider is:
// -----------------
// |xxxxxxx xxxxxxx|
// |x --- x|
// |x | | x|
// |x |D| x|
// |x | | x|
// |x --- x|
// |xxxxxxx xxxxxxx|
// -----------------
// The above shows (rather excessively) what this looks like for
// a horizontal orientation. This border then draws the x's, with
// the SplitPaneDividerBorder drawing its own border.
Component child;
Rectangle cBounds;
JSplitPane splitPane = (JSplitPane)c;
child = splitPane.getLeftComponent();
// This is needed for the space between the divider and end of
// splitpane.
g.setColor(c.getBackground());
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