/*
* Copyright (c) 2005-2009 Substance Kirill Grouchnikov. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* o Neither the name of Substance Kirill Grouchnikov nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.jvnet.substance;
import java.awt.*;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicBorders;
import javax.swing.plaf.basic.BasicPasswordFieldUI;
import javax.swing.text.*;
import org.jvnet.lafwidget.animation.FadeStateListener;
import org.jvnet.substance.api.ComponentState;
import org.jvnet.substance.api.SubstanceColorScheme;
import org.jvnet.substance.utils.*;
import org.jvnet.substance.utils.border.SubstanceBorder;
/**
* UI for password fields in <b>Substance</b> look and feel.
*
* @author Kirill Grouchnikov
*/
public class SubstancePasswordFieldUI extends BasicPasswordFieldUI {
/**
* Listener for fade animations.
*/
protected FadeStateListener substanceFadeStateListener;
/**
* The associated password field.
*/
protected JPasswordField passwordField;
/**
* Property change listener.
*/
protected PropertyChangeListener substancePropertyChangeListener;
/**
* Custom password view.
*
* @author Kirill Grouchnikov
*/
private static class SubstancePasswordView extends FieldView {
/**
* The associated password field.
*/
private JPasswordField field;
/**
* Simple constructor.
*
* @param field
* The associated password field.
* @param element
* The element
*/
public SubstancePasswordView(JPasswordField field, Element element) {
super(element);
this.field = field;
}
/**
* Draws the echo character(s) for a single password field character.
* The number of echo characters is defined by
* {@link SubstanceLookAndFeel#PASSWORD_ECHO_PER_CHAR} client property.
*
* @param g
* Graphics context
* @param x
* X coordinate of the first echo character to draw.
* @param y
* Y coordinate of the first echo character to draw.
* @param c
* Password field.
* @param isSelected
* Indicates whether the password field character is
* selected.
* @return The X location of the next echo character.
* @see SubstanceLookAndFeel#PASSWORD_ECHO_PER_CHAR
*/
protected int drawEchoCharacter(Graphics g, int x, int y, char c,
boolean isSelected) {
Container container = this.getContainer();
Graphics2D graphics = (Graphics2D) g;
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
JPasswordField field = (JPasswordField) container;
int fontSize = SubstanceSizeUtils.getComponentFontSize(this.field);
int dotDiameter = SubstanceSizeUtils
.getPasswordDotDiameter(fontSize);
int dotGap = SubstanceSizeUtils.getPasswordDotGap(fontSize);
ComponentState state = // isSelected ? ComponentState.SELECTED
(field.isEnabled() ? ComponentState.DEFAULT
: ComponentState.DISABLED_UNSELECTED);
SubstanceColorScheme scheme = SubstanceColorSchemeUtilities
.getColorScheme(field, state);
Color topColor = isSelected ? scheme.getSelectionForegroundColor()
: SubstanceColorUtilities.getForegroundColor(scheme);
Color bottomColor = topColor.brighter();
graphics.setPaint(new GradientPaint(x, y - dotDiameter, topColor,
x, y, bottomColor));
int echoPerChar = SubstanceCoreUtilities.getEchoPerChar(field);
for (int i = 0; i < echoPerChar; i++) {
graphics.fillOval(x + dotGap / 2, y - dotDiameter, dotDiameter,
dotDiameter);
x += (dotDiameter + dotGap);
}
return x;
}
/**
* Returns the advance of a single password field character. The advance
* is the pixel distance between first echo characters of consecutive
* password field characters. The
* {@link SubstanceLookAndFeel#PASSWORD_ECHO_PER_CHAR} can be used to
* specify that more than one echo character is used for each password
* field character.
*
* @return The advance of a single password field character
*/
protected int getEchoCharAdvance() {
int fontSize = SubstanceSizeUtils.getComponentFontSize(this.field);
int dotDiameter = SubstanceSizeUtils
.getPasswordDotDiameter(fontSize);
int dotGap = SubstanceSizeUtils.getPasswordDotGap(fontSize);
int echoPerChar = SubstanceCoreUtilities.getEchoPerChar(field);
return echoPerChar * (dotDiameter + dotGap);
}
/*
* (non-Javadoc)
*
* @see javax.swing.text.PlainView#drawSelectedText(java.awt.Graphics,
* int, int, int, int)
*/
@Override
protected int drawSelectedText(Graphics g, final int x, final int y,
int p0, int p1) throws BadLocationException {
Container c = getContainer();
if (c instanceof JPasswordField) {
JPasswordField f = (JPasswordField) c;
if (!f.echoCharIsSet()) {
return super.drawSelectedText(g, x, y, p0, p1);
}
int n = p1 - p0;
char echoChar = f.getEchoChar();
int currPos = x;
for (int i = 0; i < n; i++) {
currPos = drawEchoCharacter(g, currPos, y, echoChar, true);
}
return x + n * getEchoCharAdvance();
}
return x;
}
/*
* (non-Javadoc)
*
* @see javax.swing.text.PlainView#drawUnselectedText(java.awt.Graphics,
* int, int, int, int)
*/
@Override
protected int drawUnselectedText(Graphics g, final int x, final int y,
int p0, int p1) throws BadLocationException {
Container c = getContainer();
if (c instanceof JPasswordField) {
JPasswordField f = (JPasswordField) c;
if (!f.echoCharIsSet()) {
return super.drawUnselectedText(g, x, y, p0, p1);
}
int n = p1 - p0;
char echoChar = f.getEchoChar();
int currPos = x;
for (int i = 0; i < n; i++) {
currPos = drawEchoCharacter(g, currPos, y, echoChar, false);
}
return x + n * getEchoCharAdvance();
}
return x;
}
/*
* (non-Javadoc)
*
* @see javax.swing.text.View#modelToView(int, java.awt.Shape,
* javax.swing.text.Position.Bias)
*/
@Override
public Shape modelToView(int pos, Shape a, Position.Bias b)
throws BadLocationException {
Container c = this.getContainer();
if (c instanceof JPasswordField) {
JPasswordField f = (JPasswordField) c;
if (!f.echoCharIsSet()) {
return super.modelToView(pos, a, b);
}
Rectangle alloc = this.adjustAllocation(a).getBounds();
int echoPerChar = SubstanceCoreUtilities.getEchoPerChar(f);
int fontSize = SubstanceSizeUtils
.getComponentFontSize(this.field);
int dotWidth = SubstanceSizeUtils
.getPasswordDotDiameter(fontSize)
+ SubstanceSizeUtils.getPasswordDotGap(fontSize);
int dx = (pos - this.getStartOffset()) * echoPerChar * dotWidth;
alloc.x += dx;
alloc.width = 1;
return alloc;
}
return null;
}
/*
* (non-Javadoc)
*
* @see javax.swing.text.View#viewToModel(float, float, java.awt.Shape,
* javax.swing.text.Position.Bias[])
*/
@Override
public int viewToModel(float fx, float fy, Shape a, Position.Bias[] bias) {
bias[0] = Position.Bias.Forward;
int n = 0;
Container c = this.getContainer();
if (c instanceof JPasswordField) {
JPasswordField f = (JPasswordField) c;
if (!f.echoCharIsSet()) {
return super.viewToModel(fx, fy, a, bias);
}
a = this.adjustAllocation(a);
Rectangle alloc = (a instanceof Rectangle) ? (Rectangle) a : a
.getBounds();
int echoPerChar = SubstanceCoreUtilities.getEchoPerChar(f);
int fontSize = SubstanceSizeUtils
.getComponentFontSize(this.field);
int dotWidth = SubstanceSizeUtils
.getPasswordDotDiameter(fontSize)
+ SubstanceSizeUtils.getPasswordDotGap(fontSize);
n = ((int) fx - alloc.x) / (echoPerChar * dotWidth);
if (n < 0) {
n = 0;
} else {
if (n > (this.getStartOffset() + this.getDocument()
.getLength())) {
n = this.getDocument().getLength()
- this.getStartOffset();
}
}
}
return this.getStartOffset() + n;
}
/*
* (non-Javadoc)
*
* @see javax.swing.text.View#getPreferredSpan(int)
*/
@Override
public float getPreferredSpan(int axis) {
switch (axis) {
case View.X_AXIS:
Container c = this.getContainer();
if (c instanceof JPasswordField) {
JPasswordField f = (JPasswordField) c;
if (f.echoCharIsSet()) {
int echoPerChar = SubstanceCoreUtilities
.getEchoPerChar(f);
int fontSize = SubstanceSizeUtils
.getComponentFontSize(this.field);
int dotWidth = SubstanceSizeUtils
.getPasswordDotDiameter(fontSize)
+ SubstanceSizeUtils
.getPasswordDotGap(fontSize);
return echoPerChar * dotWidth
* this.getDocument().getLength();
}
}
}
return super.getPreferredSpan(axis);
}
}
/*
* (non-Javadoc)
*
* @see javax.swing.plaf.ComponentUI#createUI(javax.swing.JComponent)
*/
public static ComponentUI createUI(JComponent comp) {
SubstanceCoreUtilities.testComponentCreationThreadingViolation(comp);
return new SubstancePasswordFieldUI(comp);
}
/**
* Creates the UI delegate for the specified component (password field).
*
* @param c
* Component.
*/
public SubstancePasswordFieldUI(JComponent c) {
super();
this.passwordField = (JPasswordField) c;
}
/*
* (non-Javadoc)
*
* @see javax.swing.text.ViewFactory#create(javax.swing.text.Element)
*/
@Override
public View create(Element elem) {
return new SubstancePasswordView(this.passwordField, elem);
}
/*
* (non-Javadoc)
*
* @see javax.swing.plaf.basic.BasicTextUI#installListeners()
*/
@Override
protected void installListeners() {
super.installListeners();
this.substanceFadeStateListener = new FadeStateListener(
this.passwordField, null, null);
this.substanceFadeStateListener.registerListeners(false);
this.substancePropertyChangeListener = new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
if ("font".equals(evt.getPropertyName())) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
// remember the caret location - issue 404
int caretPos = passwordField.getCaretPosition();
passwordField.updateUI();
passwordField.setCaretPosition(caretPos);
}
});
}
}
};
this.passwordField
.addPropertyChangeListener(this.substancePropertyChangeListener);
}
/*
* (non-Javadoc)
*
* @see javax.swing.plaf.basic.BasicTextUI#uninstallListeners()
*/
@Override
protected void uninstallListeners() {
this.substanceFadeStateListener.unregisterListeners();
this.substanceFadeStateListener = null;
this.passwordField
.removePropertyChangeListener(this.substancePropertyChangeListener);
this.substancePropertyChangeListener = null;
super.uninstallListeners();
}
/*
* (non-Javadoc)
*
* @see javax.swing.plaf.basic.BasicTextUI#installDefaults()
*/
@Override
protected void installDefaults() {
super.installDefaults();
Border b = this.passwordField.getBorder();
if (b == null || b instanceof UIResource) {
Border newB = new BorderUIResource.CompoundBorderUIResource(
new SubstanceBorder(SubstanceSizeUtils
.getTextBorderInsets(SubstanceSizeUtils
.getComponentFontSize(this.passwordField))),
new BasicBorders.MarginBorder());
this.passwordField.setBorder(newB);
}
// support for per-window skins
Color foregr = this.passwordField.getForeground();
if ((foregr == null) || (foregr instanceof UIResource)) {
this.passwordField.setForeground(SubstanceColorUtilities
.getForegroundColor(SubstanceLookAndFeel.getCurrentSkin(
this.passwordField).getMainDefaultColorScheme()));
}
}
/*
* (non-Javadoc)
*
* @see
* javax.swing.plaf.basic.BasicTextUI#paintBackground(java.awt.Graphics)
*/
@Override
protected void paintBackground(Graphics g) {
SubstanceTextUtilities.paintTextCompBackground(g, this.passwordField);
}
}