下面列出了javax.swing.Icon#getIconWidth ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Creates an Image from the specified Icon
*
* @param icon
* that should be converted to an image
* @return the new image
*/
public static Image iconToImage(Icon icon) {
if (icon instanceof ImageIcon) {
return ((ImageIcon) icon).getImage();
} else {
int w = icon.getIconWidth();
int h = icon.getIconHeight();
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
BufferedImage image = gc.createCompatibleImage(w, h);
Graphics2D g = image.createGraphics();
icon.paintIcon(null, g, 0, 0);
g.dispose();
return image;
}
}
/**
* Converts a File holding an Image into a Buffered Image
*
* @param file
* {@link File}
* @return {@link BufferedImage}
*/
public static BufferedImage getBufferedImage(File file) {
// Why wasn't this using it's code that pulled from the file? Hrm.
//Icon icon = SparkRes.getImageIcon(SparkRes.DOCUMENT_INFO_32x32);
Icon icon = null;
BufferedImage bi = new BufferedImage(icon.getIconWidth(),
icon.getIconHeight(), BufferedImage.OPAQUE);
Graphics bg = bi.getGraphics();
ImageIcon i = (ImageIcon) icon;
bg.drawImage(i.getImage(), 0, 0, null);
bg.dispose();
return bi;
}
/**
* Creates an Image from the specified Icon
*
* @param icon
* that should be converted to an image
* @return the new image
*/
public static Image iconToImage(Icon icon) {
if (icon instanceof ImageIcon) {
return ((ImageIcon) icon).getImage();
} else {
int w = icon.getIconWidth();
int h = icon.getIconHeight();
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
BufferedImage image = gc.createCompatibleImage(w, h);
Graphics2D g = image.createGraphics();
icon.paintIcon(null, g, 0, 0);
g.dispose();
return image;
}
}
@Override
public Image getIcon(int type) {
Icon icon = data.getIcon();
if (icon instanceof ImageIcon) {
return ((ImageIcon) icon).getImage();
} else {
int w = icon.getIconWidth();
int h = icon.getIconHeight();
GraphicsEnvironment ge =
GraphicsEnvironment.getLocalGraphicsEnvironment();
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
BufferedImage image = gc.createCompatibleImage(w, h);
Graphics2D g = image.createGraphics();
icon.paintIcon(null, g, 0, 0);
g.dispose();
return image;
}
}
@Override
public void paint(Graphics g) {
Graphics2D g2 = (Graphics2D)g;
g.setFont(getFont());
g.setColor(getForeground());
if (getModel().isPressed()) {
largeButtonPressed.paintTo(g2, 0, 0, getWidth(), getHeight(), true, getText());
} else {
largeButton.paintTo(g2, 0, 0, getWidth(), getHeight(), false, getText());
}
Icon icon = getIcon();
if (icon != null) {
int w = (getWidth() - icon.getIconWidth()) / 2;
int h = (getHeight() - icon.getIconHeight()) / 2;
icon.paintIcon(this, g, w, h);
}
if (!isEnabled()) {
RenderTools.fill(g2, 0, 0, getWidth(), getHeight(), disabledPattern);
}
}
/**
* paint is subclassed to draw the background correctly. JLabel
* currently does not allow backgrounds other than white, and it
* will also fill behind the icon. Something that isn't desirable.
*/
@Override
public void paint(Graphics g) {
Color bColor;
Icon currentI = getIcon();
if (selected) {
bColor = SELECTED_BACKGROUND_COLOR;
} else if (getParent() != null) /* Pick background color up from parent (which will come from
the JTree we're contained in). */ {
bColor = getParent().getBackground();
} else {
bColor = getBackground();
}
g.setColor(bColor);
if (currentI != null && getText() != null) {
int offset = (currentI.getIconWidth() + getIconTextGap());
if (getComponentOrientation().isLeftToRight()) {
g.fillRect(offset, 0, getWidth() - 1 - offset,
getHeight() - 1);
} else {
g.fillRect(0, 0, getWidth() - 1 - offset, getHeight() - 1);
}
} else {
g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);
}
super.paint(g);
}
/**
* paint is subclassed to draw the background correctly. JLabel
* currently does not allow backgrounds other than white, and it
* will also fill behind the icon. Something that isn't desirable.
*/
@Override
public void paint(Graphics g) {
Color bColor;
Icon currentI = getIcon();
if (selected) {
bColor = SELECTED_BACKGROUND_COLOR;
} else if (getParent() != null) /* Pick background color up from parent (which will come from
the JTree we're contained in). */ {
bColor = getParent().getBackground();
} else {
bColor = getBackground();
}
g.setColor(bColor);
if (currentI != null && getText() != null) {
int offset = (currentI.getIconWidth() + getIconTextGap());
if (getComponentOrientation().isLeftToRight()) {
g.fillRect(offset, 0, getWidth() - 1 - offset,
getHeight() - 1);
} else {
g.fillRect(0, 0, getWidth() - 1 - offset, getHeight() - 1);
}
} else {
g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);
}
super.paint(g);
}
@Override
public void paintIcon(final Component c, final Graphics g, final int x, final int y) {
int dx = 0;
for (final Icon icon : icons) {
icon.paintIcon(c, g, x + dx, y);
dx += GAP;
dx += icon.getIconWidth();
}
}
/**
* @param delegate an icon implementation from
* {@code com.sun.java.swing.plaf.windows.WindowsIconFactory}, in its initial state at
* the time of LAF initialization (before display configuration changes are likely to
* have happened)
*/
public WindowsDPIWorkaroundIcon(Icon delegate) {
if (delegate == null) {
throw new NullPointerException();
}
this.delegate = delegate;
/* As part of bug JDK-8211715, icons in WindowsIconFactory may actually change their
reported size if the display configuration is changed while the application is running.
Assuming this workaround is applied early in the application's life cycle, before any
display configuration changes have happened, the initial value is the correct one. */
this.width = delegate.getIconWidth();
this.height = delegate.getIconHeight();
}
public void addButton(AbstractButton button) {
Icon icon = button.getIcon();
Dimension size = new Dimension(icon.getIconWidth() + 6, icon.getIconHeight() + 10);
button.setPreferredSize(size);
button.setMargin(new Insets(5, 4, 5, 4));
toolbar.add(button);
}
private static JButton createButton (String iconPath, String tooltip) {
Icon icon = ImageUtilities.loadImageIcon(iconPath, false);
final JButton button = new JButton(icon);
// ensure small size, just for the icon
Dimension size = new Dimension(icon.getIconWidth() + 8, icon.getIconHeight() + 8);
button.setPreferredSize(size);
button.setMargin(new Insets(1, 1, 1, 1));
button.setBorder(new EmptyBorder(button.getBorder().getBorderInsets(button)));
button.setToolTipText(tooltip);
button.setFocusable(false);
return button;
}
private JToggleButton createToggle (Map fStates, int index) {
boolean isSelected = filtersDesc.isSelected(index);
Icon icon = filtersDesc.getSelectedIcon(index);
// ensure small size, just for the icon
JToggleButton result = new JToggleButton(icon, isSelected);
Dimension size = new Dimension(icon.getIconWidth() + 6, icon.getIconHeight() + 4);
result.setPreferredSize(size);
result.setMargin(new Insets(2,3,2,3));
result.setToolTipText(filtersDesc.getTooltip(index));
fStates.put(filtersDesc.getName(index), Boolean.valueOf(isSelected));
return result;
}
public ReplaceDefaultMarkupItemAction(VTController controller, boolean addToToolbar) {
super(controller, "Apply (Replace Default Only)");
Icon replacedIcon = VTPlugin.REPLACED_ICON;
ImageIcon warningIcon = ResourceManager.loadImage("images/warning.png");
warningIcon = ResourceManager.getScaledIcon(warningIcon, 12, 12);
int warningIconWidth = warningIcon.getIconWidth();
int warningIconHeight = warningIcon.getIconHeight();
MultiIcon multiIcon = new MultiIcon(replacedIcon);
int refreshIconWidth = replacedIcon.getIconWidth();
int refreshIconHeight = replacedIcon.getIconHeight();
int x = refreshIconWidth - warningIconWidth;
int y = refreshIconHeight - warningIconHeight;
TranslateIcon translateIcon = new TranslateIcon(warningIcon, x, y);
multiIcon.addIcon(translateIcon);
if (addToToolbar) {
setToolBarData(new ToolBarData(multiIcon, MENU_GROUP));
}
MenuData menuData =
new MenuData(new String[] { "Apply (Replace Default Only)" }, replacedIcon, MENU_GROUP);
menuData.setMenuSubGroup("2");
setPopupMenuData(menuData);
setEnabled(false);
setHelpLocation(new HelpLocation("VersionTrackingPlugin", "Replace_Default_Markup_Item"));
}
/**
* paint is subclassed to draw the background correctly. JLabel
* currently does not allow backgrounds other than white, and it
* will also fill behind the icon. Something that isn't desirable.
*/
@Override
public void paint(Graphics g) {
Color bColor;
Icon currentI = getIcon();
if (selected) {
bColor = SELECTED_BACKGROUND_COLOR;
} else if (getParent() != null) /* Pick background color up from parent (which will come from
the JTree we're contained in). */ {
bColor = getParent().getBackground();
} else {
bColor = getBackground();
}
g.setColor(bColor);
if (currentI != null && getText() != null) {
int offset = (currentI.getIconWidth() + getIconTextGap());
if (getComponentOrientation().isLeftToRight()) {
g.fillRect(offset, 0, getWidth() - 1 - offset,
getHeight() - 1);
} else {
g.fillRect(0, 0, getWidth() - 1 - offset, getHeight() - 1);
}
} else {
g.fillRect(0, 0, getWidth() - 1, getHeight() - 1);
}
super.paint(g);
}
public static JButton createButton (Icon icon, String tooltip) {
final JButton button = new JButton(icon);
// ensure small size, just for the icon
Dimension size = new Dimension(icon.getIconWidth() + 8, icon.getIconHeight() + 8);
button.setPreferredSize(size);
button.setMargin(new Insets(1, 1, 1, 1));
button.setBorder(new EmptyBorder(button.getBorder().getBorderInsets(button)));
button.setToolTipText(tooltip);
button.setFocusable(false);
return button;
}
protected void paintTabContent(Graphics g, int index, String text, int x,
int y, int width, int height) {
// substract lower border
height--;
FontMetrics fm = getTxtFontMetrics();
// setting font already here to compute string width correctly
g.setFont(getTxtFont());
int txtWidth = width;
if (isSelected(index)) {
Component buttons = getControlButtons();
if( null != buttons ) {
Dimension buttonsSize = buttons.getPreferredSize();
if( width < buttonsSize.width+ICON_X_PAD ) {
buttons.setVisible( false );
} else {
buttons.setVisible( true );
txtWidth = width - (buttonsSize.width + ICON_X_PAD + TXT_X_PAD);
buttons.setLocation(x + txtWidth + TXT_X_PAD, y + (height - buttonsSize.height)/2 + (TXT_Y_PAD / 2));
}
}
} else {
txtWidth = width - 2 * TXT_X_PAD;
}
// draw bump (dragger)
drawBump(g, index, x + 4, y + 6, BUMP_WIDTH, height - 8);
boolean slidedOut = false;
WinsysInfoForTabbedContainer winsysInfo = displayer.getContainerWinsysInfo();
if( null != winsysInfo && winsysInfo.isSlidedOutContainer() )
slidedOut = false;
if( isTabBusy( index ) && !slidedOut ) {
Icon busyIcon = BusyTabsSupport.getDefault().getBusyIcon( isSelected( index ) );
txtWidth -= busyIcon.getIconWidth() - 3 - TXT_X_PAD;
busyIcon.paintIcon( displayer, g, x+TXT_X_PAD, y+(height-busyIcon.getIconHeight())/2);
x += busyIcon.getIconWidth() + 3;
}
// draw text in right color
Color txtC = UIManager.getColor("textText"); //NOI18N
HtmlRenderer.renderString(text, g, x + TXT_X_PAD, y + fm.getAscent()
+ TXT_Y_PAD,
txtWidth, height, getTxtFont(),
txtC,
HtmlRenderer.STYLE_TRUNCATE, true);
}
private static int getCenterX(Icon icon, int baseIconSize) {
return (baseIconSize / 2) - (icon.getIconWidth() / 2);
}
@Override
protected void paintCell(Graphics g, int row, Rectangle rowBounds,
ListCellRenderer cellRenderer, ListModel dataModel,
ListSelectionModel selModel, int leadIndex) {
super.paintCell(g, row, rowBounds, cellRenderer, dataModel, selModel,
leadIndex);
Object value = dataModel.getElementAt(row);
boolean cellHasFocus = list.hasFocus() && (row == leadIndex);
boolean isSelected = selModel.isSelectedIndex(row);
ListDecoration[] decorations = getDecorations(list);
for (int a = 0; a < decorations.length; a++) {
if (decorations[a].isVisible(list, value, row, isSelected,
cellHasFocus)) {
Point p = decorations[a].getLocation(list, value, row,
isSelected, cellHasFocus);
Icon icon = decorations[a].getIcon(list, value, row,
isSelected, cellHasFocus, false, false);
// we assume rollover/pressed icons are same dimensions as
// default icon
Rectangle iconBounds = new Rectangle(rowBounds.x + p.x,
rowBounds.y + p.y, icon.getIconWidth(),
icon.getIconHeight());
if (armedDecoration != null && armedDecoration.value == value
&& armedDecoration.decoration == decorations[a]) {
icon = decorations[a].getIcon(list, value, row, isSelected,
cellHasFocus, false, true);
} else if (iconBounds.contains(mouseX, mouseY)) {
icon = decorations[a].getIcon(list, value, row, isSelected,
cellHasFocus, true, false);
}
Graphics g2 = g.create();
try {
icon.paintIcon(list, g2, iconBounds.x, iconBounds.y);
} finally {
g2.dispose();
}
}
}
}
/** Actually paint the icon and text using our own html rendering engine. */
private void paintIconAndText(Graphics g, HtmlRendererImpl r) {
Font f = font(r);
g.setFont(f);
FontMetrics fm = g.getFontMetrics();
//Find out what height we need
int txtH = fm.getMaxAscent() + fm.getMaxDescent();
Insets ins = r.getInsets();
//find out the available height less the insets
int rHeight = r.getHeight();
int availH = rHeight - (ins.top + ins.bottom);
int txtY;
if (availH >= txtH) {
//Center the text if we have space
txtY = (txtH + ins.top + ((availH / 2) - (txtH / 2))) - fm.getMaxDescent();
} else if (r.getHeight() > txtH) {
txtY = txtH + (rHeight - txtH) / 2 - fm.getMaxDescent();
} else {
//Okay, it's not going to fit, punt.
txtY = fm.getMaxAscent();
}
int txtX = r.getIndent();
Icon icon = r.getIcon();
//Check the icon non-null and height (see TabData.NO_ICON for why)
if ((icon != null) && (icon.getIconWidth() > 0) && (icon.getIconHeight() > 0)) {
int iconY;
if (availH > icon.getIconHeight()) {
//add 2 to make sure icon top pixels are not cut off by outline
iconY = ins.top + ((availH / 2) - (icon.getIconHeight() / 2)); // + 2;
} else if (availH == icon.getIconHeight()) {
//They're an exact match, make it 0
iconY = ins.top;
} else {
//Won't fit; make the top visible and cut the rest off (option:
//center it and clip it on top and bottom - probably even harder
//to recognize that way, though)
iconY = ins.top;
}
//add in the insets
int iconX = ins.left + r.getIndent() + 1; //+1 to get it out of the way of the focus border
try {
//Diagnostic - the CPP module currently is constructing
//some ImageIcon from a null image in Options. So, catch it and at
//least give a meaningful message that indicates what node
//is the culprit
icon.paintIcon(r, g, iconX, iconY);
} catch (NullPointerException npe) {
Exceptions.attachMessage(npe,
"Probably an ImageIcon with a null source image: " +
icon + " - " + r.getText()); //NOI18N
Exceptions.printStackTrace(npe);
}
txtX = iconX + icon.getIconWidth() + r.getIconTextGap();
} else {
//If there's no icon, paint the text where the icon would start
txtX += ins.left;
}
String text = r.getText();
if (text == null) {
//No text, we're done
return;
}
//Get the available horizontal pixels for text
int txtW = (icon != null)
? (r.getWidth() - (ins.left + ins.right + icon.getIconWidth() + r.getIconTextGap() + r.getIndent()))
: (r.getWidth() - (ins.left + ins.right + r.getIndent()));
Color background = getBackgroundFor(r);
Color foreground = ensureContrastingColor(getForegroundFor(r), background);
if (r.isHtml()) {
HtmlRenderer._renderHTML(text, 0, g, txtX, txtY, txtW, txtH, f, foreground, r.getRenderStyle(), true, background, r.isSelected());
} else {
HtmlRenderer.renderPlainString(text, g, txtX, txtY, txtW, txtH, f, foreground, r.getRenderStyle(), true);
}
}
public void setIcon(Icon icon) {
this.icon = icon;
iconWidth = icon == null ? 0 : icon.getIconWidth();
iconHeight = icon == null ? 0 : icon.getIconHeight();
resetPreferredSize(true, false); // Icon likely won't change height
}