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A fork of @kirilcool's laf-widget project
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/*
* Copyright (c) 2005-2010 Laf-Widget 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 Laf-Widget 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.pushingpixels.lafwidget;
import java.awt.*;
import java.awt.geom.GeneralPath;
import java.awt.image.BufferedImage;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.*;
import javax.swing.*;
import javax.swing.text.JTextComponent;
import org.pushingpixels.lafwidget.animation.AnimationConfigurationManager;
import org.pushingpixels.lafwidget.animation.AnimationFacet;
/**
* Various utility functions.
*
* @author Kirill Grouchnikov
* @author Romain Guy
*/
public class LafWidgetUtilities {
/**
* Name for the internal client property that marks a component as
* previewable.
*/
public static final String PREVIEW_MODE = "lafwidgets.internal.previewMode";
/**
* Private constructor. Is here to enforce using static methods only.
*/
private LafWidgetUtilities() {
}
/**
* Retrieves transparent image of specified dimension.
*
* @param width
* Image width.
* @param height
* Image height.
* @return Transparent image of specified dimension.
*/
public static BufferedImage getBlankImage(int width, int height) {
BufferedImage image = new BufferedImage(width, height,
BufferedImage.TYPE_INT_ARGB);
// get graphics and set hints
Graphics2D graphics = (Graphics2D) image.getGraphics().create();
graphics.setColor(new Color(0, 0, 0, 0));
graphics.setComposite(AlphaComposite.Src);
graphics.fillRect(0, 0, width, height);
graphics.dispose();
return image;
}
/**
* Creates a compatible image (for efficient processing and drawing).
*
* @param image
* The original image.
* @return Compatible version of the original image.
* @author Romain Guy
*/
public static BufferedImage createCompatibleImage(BufferedImage image) {
GraphicsEnvironment e = GraphicsEnvironment
.getLocalGraphicsEnvironment();
GraphicsDevice d = e.getDefaultScreenDevice();
GraphicsConfiguration c = d.getDefaultConfiguration();
BufferedImage compatibleImage = c.createCompatibleImage(image
.getWidth(), image.getHeight());
Graphics g = compatibleImage.getGraphics();
g.drawImage(image, 0, 0, null);
g.dispose();
return compatibleImage;
}
/**
* Creates a thumbnail of the specified width.
*
* @param image
* The original image.
* @param requestedThumbWidth
* The width of the resulting thumbnail.
* @return Thumbnail of the specified width.
* @author Romain Guy
*/
public static BufferedImage createThumbnail(BufferedImage image,
int requestedThumbWidth) {
float ratio = (float) image.getWidth() / (float) image.getHeight();
int width = image.getWidth();
BufferedImage thumb = image;
do {
width /= 2;
if (width < requestedThumbWidth) {
width = requestedThumbWidth;
}
BufferedImage temp = new BufferedImage(width,
(int) (width / ratio), BufferedImage.TYPE_INT_ARGB);
Graphics2D g2 = temp.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BILINEAR);
g2.drawImage(thumb, 0, 0, temp.getWidth(), temp.getHeight(), null);
g2.dispose();
thumb = temp;
} while (width != requestedThumbWidth);
return thumb;
}
/**
* Returns search icon.
*
* @param dimension
* Icon dimension.
* @param leftToRight
* Indicates the orientation of the resulting icon.
* @return Search icon.
*/
public static Icon getSearchIcon(int dimension, boolean leftToRight) {
BufferedImage result = LafWidgetUtilities.getBlankImage(dimension,
dimension);
Graphics2D graphics = (Graphics2D) result.getGraphics().create();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
graphics.setColor(Color.black);
graphics.setStroke(new BasicStroke(1.5f));
if (leftToRight) {
int xc = (int) (0.6 * dimension);
int yc = (int) (0.45 * dimension);
int r = (int) (0.3 * dimension);
graphics.drawOval(xc - r, yc - r, 2 * r, 2 * r);
graphics.setStroke(new BasicStroke(3.0f));
GeneralPath handle = new GeneralPath();
handle.moveTo((float) (xc - r / Math.sqrt(2.0)), (float) (yc + r
/ Math.sqrt(2.0)));
handle.lineTo(1.8f, dimension - 2.2f);
graphics.draw(handle);
} else {
int xc = (int) (0.4 * dimension);
int yc = (int) (0.45 * dimension);
int r = (int) (0.3 * dimension);
graphics.drawOval(xc - r, yc - r, 2 * r, 2 * r);
graphics.setStroke(new BasicStroke(3.0f));
GeneralPath handle = new GeneralPath();
handle.moveTo((float) (xc + r / Math.sqrt(2.0)), (float) (yc + r
/ Math.sqrt(2.0)));
handle.lineTo(dimension - 2.5f, dimension - 2.2f);
graphics.draw(handle);
}
graphics.dispose();
return new ImageIcon(result);
}
/**
* Returns small icon representation of the specified integer value. The
* remainder of dividing the integer by 16 is translated to four circles
* arranged in 2*2 grid.
*
* @param value
* Integer value to represent.
* @return Icon representation of the specified integer value.
*/
public static Icon getHexaMarker(int value) {
BufferedImage result = LafWidgetUtilities.getBlankImage(9, 9);
value %= 16;
Color offColor = Color.gray;
Color onColor = Color.black;
boolean bit1 = ((value & 0x1) != 0);
boolean bit2 = ((value & 0x2) != 0);
boolean bit3 = ((value & 0x4) != 0);
boolean bit4 = ((value & 0x8) != 0);
Graphics2D graphics = (Graphics2D) result.getGraphics().create();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_ON);
graphics.setColor(bit1 ? onColor : offColor);
graphics.fillOval(5, 5, 4, 4);
graphics.setColor(bit2 ? onColor : offColor);
graphics.fillOval(5, 0, 4, 4);
graphics.setColor(bit3 ? onColor : offColor);
graphics.fillOval(0, 5, 4, 4);
graphics.setColor(bit4 ? onColor : offColor);
graphics.fillOval(0, 0, 4, 4);
graphics.dispose();
return new ImageIcon(result);
}
/**
* Makes the specified component and all its descendants previewable.
*
* @param comp
* Component.
* @param dbSnapshot
* The "snapshot" map that will contain the original
* double-buffer status of the specified component and all its
* descendants. Key is {@link JComponent}, value is
* {@link Boolean}.
*/
public static void makePreviewable(Component comp,
Map dbSnapshot) {
if (comp instanceof JComponent) {
JComponent jcomp = (JComponent) comp;
// if (jcomp.getParent() instanceof CellRendererPane) {
// System.out.println(jcomp.getClass().getSimpleName() + ":"
// + jcomp.hashCode());
// }
dbSnapshot.put(jcomp, jcomp.isDoubleBuffered());
jcomp.setDoubleBuffered(false);
jcomp.putClientProperty(LafWidgetUtilities.PREVIEW_MODE,
Boolean.TRUE);
}
if (comp instanceof Container) {
Container cont = (Container) comp;
for (int i = 0; i < cont.getComponentCount(); i++)
LafWidgetUtilities.makePreviewable(cont.getComponent(i),
dbSnapshot);
}
}
/**
* Restores the regular (non-previewable) status of the specified component
* and all its descendants.
*
* @param comp
* Component.
* @param dbSnapshot
* The "snapshot" map that contains the original double-buffer
* status of the specified component and all its descendants. Key
* is {@link JComponent}, value is {@link Boolean}.
*/
public static void restorePreviewable(Component comp,
Map dbSnapshot) {
if (comp instanceof JComponent) {
JComponent jcomp = (JComponent) comp;
if (dbSnapshot.containsKey(comp)) {
// the key may exist, but may be set to null (lovely boxing quirk)
// treat null as false, since that is the default
Boolean buffered = dbSnapshot.get(comp);
jcomp.setDoubleBuffered(buffered == null ? false : buffered);
jcomp.putClientProperty(LafWidgetUtilities.PREVIEW_MODE, null);
} else {
// this can happen in case the application has
// renderers (combos, ...). Take the property from the parent
Component parent = comp.getParent();
if (parent instanceof JComponent && dbSnapshot.containsKey(parent)) {
// the key may exist, but may be set to null (lovely boxing quirk)
// treat null as false, since that is the default
Boolean buffered = dbSnapshot.get(parent);
jcomp.setDoubleBuffered(buffered == null ? false : buffered);
jcomp.putClientProperty(LafWidgetUtilities.PREVIEW_MODE,
null);
}
// System.out.println("Not found");
// Component c = jcomp;
// while (c != null) {
// System.out.println("\t" + c.getClass().getSimpleName()
// + ":" + c.hashCode());
// c = c.getParent();
// }
}
}
if (comp instanceof Container) {
Container cont = (Container) comp;
for (int i = 0; i < cont.getComponentCount(); i++)
LafWidgetUtilities.restorePreviewable(cont.getComponent(i),
dbSnapshot);
}
}
/**
* Returns a lock icon.
*
* @return Lock icon.
*/
public static Icon getSmallLockIcon() {
BufferedImage result = LafWidgetUtilities.getBlankImage(6, 8);
Color fore = Color.black;
Color fill = new Color(208, 208, 48);
Graphics2D graphics = (Graphics2D) result.getGraphics().create();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
RenderingHints.VALUE_ANTIALIAS_OFF);
graphics.setColor(fill);
graphics.fillRect(1, 3, 4, 4);
graphics.setColor(fore);
graphics.drawLine(0, 3, 0, 7);
graphics.drawLine(5, 3, 5, 7);
graphics.drawLine(0, 7, 5, 7);
graphics.drawLine(1, 2, 4, 2);
graphics.drawLine(1, 1, 1, 2);
graphics.drawLine(4, 1, 4, 2);
graphics.drawLine(2, 0, 3, 0);
graphics.drawLine(2, 4, 3, 4);
graphics.drawLine(2, 5, 3, 5);
graphics.dispose();
return new ImageIcon(result);
}
/**
* Checks whether the specified text component has
* "select all on focus gain" property.
*
* @param textComp
* Text component.
* @return true if the specified text component has "select all
* on focus gain" property, false otherwise.
*/
public static boolean hasTextFocusSelectAllProperty(JTextComponent textComp) {
Component comp = textComp;
while (comp != null) {
if (comp instanceof JComponent) {
Object textFocusSelectAllProperty = ((JComponent) comp)
.getClientProperty(LafWidget.TEXT_SELECT_ON_FOCUS);
if (Boolean.TRUE.equals(textFocusSelectAllProperty))
return true;
if (Boolean.FALSE.equals(textFocusSelectAllProperty))
return false;
}
comp = comp.getParent();
}
return (Boolean.TRUE.equals(UIManager
.get(LafWidget.TEXT_SELECT_ON_FOCUS)));
}
/**
* Checks whether the specified text component has "flip select on escape"
* property.
*
* @param textComp
* Text component.
* @return true if the specified text component has "flip
* select on escape" property, false otherwise.
*/
public static boolean hasTextFlipSelectOnEscapeProperty(
JTextComponent textComp) {
Object textFocusSelectAllProperty = textComp
.getClientProperty(LafWidget.TEXT_FLIP_SELECT_ON_ESCAPE);
return (Boolean.TRUE.equals(textFocusSelectAllProperty));
}
/**
* Checks whether the specified text component has edit context menu
* property.
*
* @param textComp
* Text component.
* @return true if the specified text component has edit
* context menu property, false otherwise.
*/
public static boolean hasTextEditContextMenu(JTextComponent textComp) {
Object textEditContextMenuProperty = textComp
.getClientProperty(LafWidget.TEXT_EDIT_CONTEXT_MENU);
if (Boolean.TRUE.equals(textEditContextMenuProperty))
return true;
if (Boolean.FALSE.equals(textEditContextMenuProperty))
return false;
return (Boolean.TRUE.equals(UIManager
.get(LafWidget.TEXT_EDIT_CONTEXT_MENU)));
}
/**
* Checks whether the specified scroll pane supports auto scroll.
*
* @param scrollPane
* Scroll pane component.
* @return true if the specified scroll pane supports auto
* scroll, false otherwise.
*/
public static boolean hasAutoScroll(JScrollPane scrollPane) {
Object compProperty = scrollPane
.getClientProperty(LafWidget.AUTO_SCROLL);
if (Boolean.TRUE.equals(compProperty))
return true;
if (Boolean.FALSE.equals(compProperty))
return false;
return (Boolean.TRUE.equals(UIManager.get(LafWidget.AUTO_SCROLL)));
}
/**
* Checks whether the specified tree component has automatic drag and drop
* support.
*
* @param tree
* Tree component.
* @return true if the specified text component has automatic
* drag and drop support, false otherwise.
*/
public static boolean hasAutomaticDnDSupport(JTree tree) {
Object dndProperty = tree
.getClientProperty(LafWidget.TREE_AUTO_DND_SUPPORT);
if (Boolean.TRUE.equals(dndProperty))
return true;
if (Boolean.FALSE.equals(dndProperty))
return false;
return (Boolean.TRUE.equals(UIManager
.get(LafWidget.TREE_AUTO_DND_SUPPORT)));
}
/**
* Checks whether the label lookup should use component-specific locale on
* the specified component.
*
* @param jcomp
* Component.
* @return true if the custom labels should be looked up based
* on the component locale as returned by
* {@link JComponent#getLocale()}, false if the custom
* labels should be looked up based on the global locale as returned
* by {@link Locale#getDefault()}.
*/
public static boolean toIgnoreGlobalLocale(JComponent jcomp) {
if (jcomp == null)
return false;
return Boolean.TRUE.equals(jcomp
.getClientProperty(LafWidget.IGNORE_GLOBAL_LOCALE));
}
/**
* Returns the resource bundle for the specified component.
*
* @param jcomp
* Component.
* @return Resource bundle for the specified component.
*/
public static ResourceBundle getResourceBundle(JComponent jcomp) {
if (toIgnoreGlobalLocale(jcomp)) {
return LafWidgetRepository.getLabelBundle(jcomp.getLocale());
} else {
return LafWidgetRepository.getLabelBundle();
}
}
/**
* Checks whether the specified component has been configured (specifically
* or globally) to have no animations of the specific facet. Can be used to
* cull unnecessary code in animation listeners on large tables and lists.
*
* @param comp
* Component.
* @param animationFacet
* Animation facet.
* @return true if the specified component has been configured
* (specifically or globally) to have no animations of the specific
* facet, false otherwise.
*/
public static boolean hasNoAnimations(Component comp,
AnimationFacet animationFacet) {
return !AnimationConfigurationManager.getInstance().isAnimationAllowed(
animationFacet, comp);
}
/**
* Returns the current icon for the specified button. This method is for
* internal use only.
*
* @param b
* Button.
* @return Icon for the specified button.
*/
public static Icon getIcon(AbstractButton b) {
Icon icon = b.getIcon();
if (icon == null)
return null;
ButtonModel model = b.getModel();
Icon tmpIcon = null;
if (icon != null) {
if (!model.isEnabled()) {
if (model.isSelected()) {
tmpIcon = b.getDisabledSelectedIcon();
} else {
tmpIcon = b.getDisabledIcon();
}
} else if (model.isPressed() && model.isArmed()) {
tmpIcon = b.getPressedIcon();
} else if (b.isRolloverEnabled() && model.isRollover()) {
if (model.isSelected()) {
tmpIcon = b.getRolloverSelectedIcon();
} else {
tmpIcon = b.getRolloverIcon();
}
} else if (model.isSelected()) {
tmpIcon = b.getSelectedIcon();
}
if (tmpIcon != null) {
icon = tmpIcon;
}
}
return icon;
}
public static boolean toIgnoreAnimations(Component comp) {
if (comp instanceof JMenuItem)
return false;
return (SwingUtilities.getAncestorOfClass(CellRendererPane.class, comp) != null);
}
/**
* Tests UI threading violations on changing the state the specified
* component.
*
* @param comp
* Component.
* @throws UiThreadingViolationException
* If the component is changing state off Event Dispatch Thread.
*/
public static void testComponentStateChangeThreadingViolation(Component comp) {
if (!SwingUtilities.isEventDispatchThread()) {
UiThreadingViolationException uiThreadingViolationError = new UiThreadingViolationException(
"Component state change must be done on Event Dispatch Thread");
uiThreadingViolationError.printStackTrace(System.err);
throw uiThreadingViolationError;
}
}
/**
* Fires the matching property change event on the specific component.
*
* @param component
* Component.
* @param propertyName
* Property name.
* @param oldValue
* Old property value.
* @param newValue
* New property value.
*/
public static void firePropertyChangeEvent(JComponent component,
String propertyName, Object oldValue, Object newValue) {
PropertyChangeEvent pce = new PropertyChangeEvent(component,
propertyName, oldValue, newValue);
for (PropertyChangeListener general : component
.getPropertyChangeListeners()) {
general.propertyChange(pce);
}
for (PropertyChangeListener specific : component
.getPropertyChangeListeners(propertyName)) {
specific.propertyChange(pce);
}
}
/**
* Returns the composite to use for painting the specified component. The
* result should be set on the {@link Graphics2D} before any custom
* rendering is done. This method can be used by application painting code
* and by look-and-feel delegates.
*
* @param c
* Component.
* @param translucency
* The translucency of the original painting.
* @param g
* The original graphics context.
* @return The composite to use for painting the specified component.
*/
public static Composite getAlphaComposite(Component c, float translucency,
Graphics g) {
float xFactor = 1.0f;
if (g instanceof Graphics2D) {
Graphics2D g2d = (Graphics2D) g;
Composite existingComposite = g2d.getComposite();
if (existingComposite instanceof AlphaComposite) {
AlphaComposite ac = (AlphaComposite) existingComposite;
if (ac.getRule() == AlphaComposite.SRC_OVER)
xFactor = ac.getAlpha();
}
}
float finalAlpha = translucency * xFactor;
if (finalAlpha < 0.0f) {
finalAlpha = 0.0f;
}
if (finalAlpha > 1.0f) {
finalAlpha = 1.0f;
}
if (finalAlpha == 1.0f) {
return AlphaComposite.SrcOver;
}
return AlphaComposite.SrcOver.derive(finalAlpha);
}
public static Composite getAlphaComposite(Component c, float translucency) {
return getAlphaComposite(c, translucency, null);
}
/**
* Returns the composite to use for painting the specified component. The
* result should be set on the {@link Graphics2D} before any custom
* rendering is done. This method can be used by application painting code
* and by look-and-feel delegates.
*
* @param c
* Component.
* @return The composite to use for painting the specified component.
*/
public static Composite getAlphaComposite(Component c, Graphics g) {
return getAlphaComposite(c, 1.0f, g);
}
/**
* Returns the composite to use for painting the specified component. The
* result should be set on the {@link Graphics2D} before any custom
* rendering is done. This method can be used by application painting code
* and by look-and-feel delegates.
*
* @param c
* Component.
* @return The composite to use for painting the specified component.
*/
public static Composite getAlphaComposite(Component c) {
return getAlphaComposite(c, 1.0f, null);
}
}
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