| /* |
| * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package javax.swing.plaf.synth; |
| |
| import sun.swing.SwingUtilities2; |
| import sun.swing.MenuItemLayoutHelper; |
| |
| import java.awt.*; |
| import javax.swing.*; |
| import javax.swing.plaf.basic.BasicHTML; |
| import javax.swing.text.*; |
| import sun.swing.plaf.synth.*; |
| |
| /** |
| * Wrapper for primitive graphics calls. |
| * |
| * @since 1.5 |
| * @author Scott Violet |
| */ |
| public class SynthGraphicsUtils { |
| // These are used in the text painting code to avoid allocating a bunch of |
| // garbage. |
| private Rectangle paintIconR = new Rectangle(); |
| private Rectangle paintTextR = new Rectangle(); |
| private Rectangle paintViewR = new Rectangle(); |
| private Insets paintInsets = new Insets(0, 0, 0, 0); |
| |
| // These Rectangles/Insets are used in the text size calculation to avoid a |
| // a bunch of garbage. |
| private Rectangle iconR = new Rectangle(); |
| private Rectangle textR = new Rectangle(); |
| private Rectangle viewR = new Rectangle(); |
| private Insets viewSizingInsets = new Insets(0, 0, 0, 0); |
| |
| /** |
| * Creates a <code>SynthGraphicsUtils</code>. |
| */ |
| public SynthGraphicsUtils() { |
| } |
| |
| /** |
| * Draws a line between the two end points. |
| * |
| * @param context Identifies hosting region. |
| * @param paintKey Identifies the portion of the component being asked |
| * to paint, may be null. |
| * @param g Graphics object to paint to |
| * @param x1 x origin |
| * @param y1 y origin |
| * @param x2 x destination |
| * @param y2 y destination |
| */ |
| public void drawLine(SynthContext context, Object paintKey, |
| Graphics g, int x1, int y1, int x2, int y2) { |
| g.drawLine(x1, y1, x2, y2); |
| } |
| |
| /** |
| * Draws a line between the two end points. |
| * <p>This implementation supports only one line style key, |
| * <code>"dashed"</code>. The <code>"dashed"</code> line style is applied |
| * only to vertical and horizontal lines. |
| * <p>Specifying <code>null</code> or any key different from |
| * <code>"dashed"</code> will draw solid lines. |
| * |
| * @param context identifies hosting region |
| * @param paintKey identifies the portion of the component being asked |
| * to paint, may be null |
| * @param g Graphics object to paint to |
| * @param x1 x origin |
| * @param y1 y origin |
| * @param x2 x destination |
| * @param y2 y destination |
| * @param styleKey identifies the requested style of the line (e.g. "dashed") |
| * @since 1.6 |
| */ |
| public void drawLine(SynthContext context, Object paintKey, |
| Graphics g, int x1, int y1, int x2, int y2, |
| Object styleKey) { |
| if ("dashed".equals(styleKey)) { |
| // draw vertical line |
| if (x1 == x2) { |
| y1 += (y1 % 2); |
| |
| for (int y = y1; y <= y2; y+=2) { |
| g.drawLine(x1, y, x2, y); |
| } |
| // draw horizontal line |
| } else if (y1 == y2) { |
| x1 += (x1 % 2); |
| |
| for (int x = x1; x <= x2; x+=2) { |
| g.drawLine(x, y1, x, y2); |
| } |
| // oblique lines are not supported |
| } |
| } else { |
| drawLine(context, paintKey, g, x1, y1, x2, y2); |
| } |
| } |
| |
| /** |
| * Lays out text and an icon returning, by reference, the location to |
| * place the icon and text. |
| * |
| * @param ss SynthContext |
| * @param fm FontMetrics for the Font to use, this may be ignored |
| * @param text Text to layout |
| * @param icon Icon to layout |
| * @param hAlign horizontal alignment |
| * @param vAlign vertical alignment |
| * @param hTextPosition horizontal text position |
| * @param vTextPosition vertical text position |
| * @param viewR Rectangle to layout text and icon in. |
| * @param iconR Rectangle to place icon bounds in |
| * @param textR Rectangle to place text in |
| * @param iconTextGap gap between icon and text |
| */ |
| public String layoutText(SynthContext ss, FontMetrics fm, |
| String text, Icon icon, int hAlign, |
| int vAlign, int hTextPosition, |
| int vTextPosition, Rectangle viewR, |
| Rectangle iconR, Rectangle textR, int iconTextGap) { |
| if (icon instanceof SynthIcon) { |
| SynthIconWrapper wrapper = SynthIconWrapper.get((SynthIcon)icon, |
| ss); |
| String formattedText = SwingUtilities.layoutCompoundLabel( |
| ss.getComponent(), fm, text, wrapper, vAlign, hAlign, |
| vTextPosition, hTextPosition, viewR, iconR, textR, |
| iconTextGap); |
| SynthIconWrapper.release(wrapper); |
| return formattedText; |
| } |
| return SwingUtilities.layoutCompoundLabel( |
| ss.getComponent(), fm, text, icon, vAlign, hAlign, |
| vTextPosition, hTextPosition, viewR, iconR, textR, |
| iconTextGap); |
| } |
| |
| /** |
| * Returns the size of the passed in string. |
| * |
| * @param ss SynthContext |
| * @param font Font to use |
| * @param metrics FontMetrics, may be ignored |
| * @param text Text to get size of. |
| */ |
| public int computeStringWidth(SynthContext ss, Font font, |
| FontMetrics metrics, String text) { |
| return SwingUtilities2.stringWidth(ss.getComponent(), metrics, |
| text); |
| } |
| |
| /** |
| * Returns the minimum size needed to properly render an icon and text. |
| * |
| * @param ss SynthContext |
| * @param font Font to use |
| * @param text Text to layout |
| * @param icon Icon to layout |
| * @param hAlign horizontal alignment |
| * @param vAlign vertical alignment |
| * @param hTextPosition horizontal text position |
| * @param vTextPosition vertical text position |
| * @param iconTextGap gap between icon and text |
| * @param mnemonicIndex Index into text to render the mnemonic at, -1 |
| * indicates no mnemonic. |
| */ |
| public Dimension getMinimumSize(SynthContext ss, Font font, String text, |
| Icon icon, int hAlign, int vAlign, int hTextPosition, |
| int vTextPosition, int iconTextGap, int mnemonicIndex) { |
| JComponent c = ss.getComponent(); |
| Dimension size = getPreferredSize(ss, font, text, icon, hAlign, |
| vAlign, hTextPosition, vTextPosition, |
| iconTextGap, mnemonicIndex); |
| View v = (View) c.getClientProperty(BasicHTML.propertyKey); |
| |
| if (v != null) { |
| size.width -= v.getPreferredSpan(View.X_AXIS) - |
| v.getMinimumSpan(View.X_AXIS); |
| } |
| return size; |
| } |
| |
| /** |
| * Returns the maximum size needed to properly render an icon and text. |
| * |
| * @param ss SynthContext |
| * @param font Font to use |
| * @param text Text to layout |
| * @param icon Icon to layout |
| * @param hAlign horizontal alignment |
| * @param vAlign vertical alignment |
| * @param hTextPosition horizontal text position |
| * @param vTextPosition vertical text position |
| * @param iconTextGap gap between icon and text |
| * @param mnemonicIndex Index into text to render the mnemonic at, -1 |
| * indicates no mnemonic. |
| */ |
| public Dimension getMaximumSize(SynthContext ss, Font font, String text, |
| Icon icon, int hAlign, int vAlign, int hTextPosition, |
| int vTextPosition, int iconTextGap, int mnemonicIndex) { |
| JComponent c = ss.getComponent(); |
| Dimension size = getPreferredSize(ss, font, text, icon, hAlign, |
| vAlign, hTextPosition, vTextPosition, |
| iconTextGap, mnemonicIndex); |
| View v = (View) c.getClientProperty(BasicHTML.propertyKey); |
| |
| if (v != null) { |
| size.width += v.getMaximumSpan(View.X_AXIS) - |
| v.getPreferredSpan(View.X_AXIS); |
| } |
| return size; |
| } |
| |
| /** |
| * Returns the maximum height of the the Font from the passed in |
| * SynthContext. |
| * |
| * @param context SynthContext used to determine font. |
| * @return maximum height of the characters for the font from the passed |
| * in context. |
| */ |
| public int getMaximumCharHeight(SynthContext context) { |
| FontMetrics fm = context.getComponent().getFontMetrics( |
| context.getStyle().getFont(context)); |
| return (fm.getAscent() + fm.getDescent()); |
| } |
| |
| /** |
| * Returns the preferred size needed to properly render an icon and text. |
| * |
| * @param ss SynthContext |
| * @param font Font to use |
| * @param text Text to layout |
| * @param icon Icon to layout |
| * @param hAlign horizontal alignment |
| * @param vAlign vertical alignment |
| * @param hTextPosition horizontal text position |
| * @param vTextPosition vertical text position |
| * @param iconTextGap gap between icon and text |
| * @param mnemonicIndex Index into text to render the mnemonic at, -1 |
| * indicates no mnemonic. |
| */ |
| public Dimension getPreferredSize(SynthContext ss, Font font, String text, |
| Icon icon, int hAlign, int vAlign, int hTextPosition, |
| int vTextPosition, int iconTextGap, int mnemonicIndex) { |
| JComponent c = ss.getComponent(); |
| Insets insets = c.getInsets(viewSizingInsets); |
| int dx = insets.left + insets.right; |
| int dy = insets.top + insets.bottom; |
| |
| if (icon == null && (text == null || font == null)) { |
| return new Dimension(dx, dy); |
| } |
| else if ((text == null) || ((icon != null) && (font == null))) { |
| return new Dimension(SynthIcon.getIconWidth(icon, ss) + dx, |
| SynthIcon.getIconHeight(icon, ss) + dy); |
| } |
| else { |
| FontMetrics fm = c.getFontMetrics(font); |
| |
| iconR.x = iconR.y = iconR.width = iconR.height = 0; |
| textR.x = textR.y = textR.width = textR.height = 0; |
| viewR.x = dx; |
| viewR.y = dy; |
| viewR.width = viewR.height = Short.MAX_VALUE; |
| |
| layoutText(ss, fm, text, icon, hAlign, vAlign, |
| hTextPosition, vTextPosition, viewR, iconR, textR, |
| iconTextGap); |
| int x1 = Math.min(iconR.x, textR.x); |
| int x2 = Math.max(iconR.x + iconR.width, textR.x + textR.width); |
| int y1 = Math.min(iconR.y, textR.y); |
| int y2 = Math.max(iconR.y + iconR.height, textR.y + textR.height); |
| Dimension rv = new Dimension(x2 - x1, y2 - y1); |
| |
| rv.width += dx; |
| rv.height += dy; |
| return rv; |
| } |
| } |
| |
| /** |
| * Paints text at the specified location. This will not attempt to |
| * render the text as html nor will it offset by the insets of the |
| * component. |
| * |
| * @param ss SynthContext |
| * @param g Graphics used to render string in. |
| * @param text Text to render |
| * @param bounds Bounds of the text to be drawn. |
| * @param mnemonicIndex Index to draw string at. |
| */ |
| public void paintText(SynthContext ss, Graphics g, String text, |
| Rectangle bounds, int mnemonicIndex) { |
| paintText(ss, g, text, bounds.x, bounds.y, mnemonicIndex); |
| } |
| |
| /** |
| * Paints text at the specified location. This will not attempt to |
| * render the text as html nor will it offset by the insets of the |
| * component. |
| * |
| * @param ss SynthContext |
| * @param g Graphics used to render string in. |
| * @param text Text to render |
| * @param x X location to draw text at. |
| * @param y Upper left corner to draw text at. |
| * @param mnemonicIndex Index to draw string at. |
| */ |
| public void paintText(SynthContext ss, Graphics g, String text, |
| int x, int y, int mnemonicIndex) { |
| if (text != null) { |
| JComponent c = ss.getComponent(); |
| FontMetrics fm = SwingUtilities2.getFontMetrics(c, g); |
| y += fm.getAscent(); |
| SwingUtilities2.drawStringUnderlineCharAt(c, g, text, |
| mnemonicIndex, x, y); |
| } |
| } |
| |
| /** |
| * Paints an icon and text. This will render the text as html, if |
| * necessary, and offset the location by the insets of the component. |
| * |
| * @param ss SynthContext |
| * @param g Graphics to render string and icon into |
| * @param text Text to layout |
| * @param icon Icon to layout |
| * @param hAlign horizontal alignment |
| * @param vAlign vertical alignment |
| * @param hTextPosition horizontal text position |
| * @param vTextPosition vertical text position |
| * @param iconTextGap gap between icon and text |
| * @param mnemonicIndex Index into text to render the mnemonic at, -1 |
| * indicates no mnemonic. |
| * @param textOffset Amount to offset the text when painting |
| */ |
| public void paintText(SynthContext ss, Graphics g, String text, |
| Icon icon, int hAlign, int vAlign, int hTextPosition, |
| int vTextPosition, int iconTextGap, int mnemonicIndex, |
| int textOffset) { |
| if ((icon == null) && (text == null)) { |
| return; |
| } |
| JComponent c = ss.getComponent(); |
| FontMetrics fm = SwingUtilities2.getFontMetrics(c, g); |
| Insets insets = SynthLookAndFeel.getPaintingInsets(ss, paintInsets); |
| |
| paintViewR.x = insets.left; |
| paintViewR.y = insets.top; |
| paintViewR.width = c.getWidth() - (insets.left + insets.right); |
| paintViewR.height = c.getHeight() - (insets.top + insets.bottom); |
| |
| paintIconR.x = paintIconR.y = paintIconR.width = paintIconR.height = 0; |
| paintTextR.x = paintTextR.y = paintTextR.width = paintTextR.height = 0; |
| |
| String clippedText = |
| layoutText(ss, fm, text, icon, hAlign, vAlign, |
| hTextPosition, vTextPosition, paintViewR, paintIconR, |
| paintTextR, iconTextGap); |
| |
| if (icon != null) { |
| Color color = g.getColor(); |
| |
| if (ss.getStyle().getBoolean(ss, "TableHeader.alignSorterArrow", false) && |
| "TableHeader.renderer".equals(c.getName())) { |
| paintIconR.x = paintViewR.width - paintIconR.width; |
| } else { |
| paintIconR.x += textOffset; |
| } |
| paintIconR.y += textOffset; |
| SynthIcon.paintIcon(icon, ss, g, paintIconR.x, paintIconR.y, |
| paintIconR.width, paintIconR.height); |
| g.setColor(color); |
| } |
| |
| if (text != null) { |
| View v = (View) c.getClientProperty(BasicHTML.propertyKey); |
| |
| if (v != null) { |
| v.paint(g, paintTextR); |
| } else { |
| paintTextR.x += textOffset; |
| paintTextR.y += textOffset; |
| |
| paintText(ss, g, clippedText, paintTextR, mnemonicIndex); |
| } |
| } |
| } |
| |
| |
| /** |
| * A quick note about how preferred sizes are calculated... Generally |
| * speaking, SynthPopupMenuUI will run through the list of its children |
| * (from top to bottom) and ask each for its preferred size. Each menu |
| * item will add up the max width of each element (icons, text, |
| * accelerator spacing, accelerator text or arrow icon) encountered thus |
| * far, so by the time all menu items have been calculated, we will |
| * know the maximum (preferred) menu item size for that popup menu. |
| * Later when it comes time to paint each menu item, we can use those |
| * same accumulated max element sizes in order to layout the item. |
| */ |
| static Dimension getPreferredMenuItemSize(SynthContext context, |
| SynthContext accContext, JComponent c, |
| Icon checkIcon, Icon arrowIcon, int defaultTextIconGap, |
| String acceleratorDelimiter, boolean useCheckAndArrow, |
| String propertyPrefix) { |
| |
| JMenuItem mi = (JMenuItem) c; |
| SynthMenuItemLayoutHelper lh = new SynthMenuItemLayoutHelper( |
| context, accContext, mi, checkIcon, arrowIcon, |
| MenuItemLayoutHelper.createMaxRect(), defaultTextIconGap, |
| acceleratorDelimiter, SynthLookAndFeel.isLeftToRight(mi), |
| useCheckAndArrow, propertyPrefix); |
| |
| Dimension result = new Dimension(); |
| |
| // Calculate the result width |
| int gap = lh.getGap(); |
| result.width = 0; |
| MenuItemLayoutHelper.addMaxWidth(lh.getCheckSize(), gap, result); |
| MenuItemLayoutHelper.addMaxWidth(lh.getLabelSize(), gap, result); |
| MenuItemLayoutHelper.addWidth(lh.getMaxAccOrArrowWidth(), 5 * gap, result); |
| // The last gap is unnecessary |
| result.width -= gap; |
| |
| // Calculate the result height |
| result.height = MenuItemLayoutHelper.max(lh.getCheckSize().getHeight(), |
| lh.getLabelSize().getHeight(), lh.getAccSize().getHeight(), |
| lh.getArrowSize().getHeight()); |
| |
| // Take into account menu item insets |
| Insets insets = lh.getMenuItem().getInsets(); |
| if (insets != null) { |
| result.width += insets.left + insets.right; |
| result.height += insets.top + insets.bottom; |
| } |
| |
| // if the width is even, bump it up one. This is critical |
| // for the focus dash lhne to draw properly |
| if (result.width % 2 == 0) { |
| result.width++; |
| } |
| |
| // if the height is even, bump it up one. This is critical |
| // for the text to center properly |
| if (result.height % 2 == 0) { |
| result.height++; |
| } |
| |
| return result; |
| } |
| |
| static void applyInsets(Rectangle rect, Insets insets, boolean leftToRight) { |
| if (insets != null) { |
| rect.x += (leftToRight ? insets.left : insets.right); |
| rect.y += insets.top; |
| rect.width -= (leftToRight ? insets.right : insets.left) + rect.x; |
| rect.height -= (insets.bottom + rect.y); |
| } |
| } |
| |
| static void paint(SynthContext context, SynthContext accContext, Graphics g, |
| Icon checkIcon, Icon arrowIcon, String acceleratorDelimiter, |
| int defaultTextIconGap, String propertyPrefix) { |
| JMenuItem mi = (JMenuItem) context.getComponent(); |
| SynthStyle style = context.getStyle(); |
| g.setFont(style.getFont(context)); |
| |
| Rectangle viewRect = new Rectangle(0, 0, mi.getWidth(), mi.getHeight()); |
| boolean leftToRight = SynthLookAndFeel.isLeftToRight(mi); |
| applyInsets(viewRect, mi.getInsets(), leftToRight); |
| |
| SynthMenuItemLayoutHelper lh = new SynthMenuItemLayoutHelper( |
| context, accContext, mi, checkIcon, arrowIcon, viewRect, |
| defaultTextIconGap, acceleratorDelimiter, leftToRight, |
| MenuItemLayoutHelper.useCheckAndArrow(mi), propertyPrefix); |
| MenuItemLayoutHelper.LayoutResult lr = lh.layoutMenuItem(); |
| |
| paintMenuItem(g, lh, lr); |
| } |
| |
| static void paintMenuItem(Graphics g, SynthMenuItemLayoutHelper lh, |
| MenuItemLayoutHelper.LayoutResult lr) { |
| // Save original graphics font and color |
| Font holdf = g.getFont(); |
| Color holdc = g.getColor(); |
| |
| paintCheckIcon(g, lh, lr); |
| paintIcon(g, lh, lr); |
| paintText(g, lh, lr); |
| paintAccText(g, lh, lr); |
| paintArrowIcon(g, lh, lr); |
| |
| // Restore original graphics font and color |
| g.setColor(holdc); |
| g.setFont(holdf); |
| } |
| |
| static void paintBackground(Graphics g, SynthMenuItemLayoutHelper lh) { |
| paintBackground(lh.getContext(), g, lh.getMenuItem()); |
| } |
| |
| static void paintBackground(SynthContext context, Graphics g, JComponent c) { |
| context.getPainter().paintMenuItemBackground(context, g, 0, 0, |
| c.getWidth(), c.getHeight()); |
| } |
| |
| static void paintIcon(Graphics g, SynthMenuItemLayoutHelper lh, |
| MenuItemLayoutHelper.LayoutResult lr) { |
| if (lh.getIcon() != null) { |
| Icon icon; |
| JMenuItem mi = lh.getMenuItem(); |
| ButtonModel model = mi.getModel(); |
| if (!model.isEnabled()) { |
| icon = mi.getDisabledIcon(); |
| } else if (model.isPressed() && model.isArmed()) { |
| icon = mi.getPressedIcon(); |
| if (icon == null) { |
| // Use default icon |
| icon = mi.getIcon(); |
| } |
| } else { |
| icon = mi.getIcon(); |
| } |
| |
| if (icon != null) { |
| Rectangle iconRect = lr.getIconRect(); |
| SynthIcon.paintIcon(icon, lh.getContext(), g, iconRect.x, |
| iconRect.y, iconRect.width, iconRect.height); |
| } |
| } |
| } |
| |
| static void paintCheckIcon(Graphics g, SynthMenuItemLayoutHelper lh, |
| MenuItemLayoutHelper.LayoutResult lr) { |
| if (lh.getCheckIcon() != null) { |
| Rectangle checkRect = lr.getCheckRect(); |
| SynthIcon.paintIcon(lh.getCheckIcon(), lh.getContext(), g, |
| checkRect.x, checkRect.y, checkRect.width, checkRect.height); |
| } |
| } |
| |
| static void paintAccText(Graphics g, SynthMenuItemLayoutHelper lh, |
| MenuItemLayoutHelper.LayoutResult lr) { |
| String accText = lh.getAccText(); |
| if (accText != null && !accText.equals("")) { |
| g.setColor(lh.getAccStyle().getColor(lh.getAccContext(), |
| ColorType.TEXT_FOREGROUND)); |
| g.setFont(lh.getAccStyle().getFont(lh.getAccContext())); |
| lh.getAccGraphicsUtils().paintText(lh.getAccContext(), g, accText, |
| lr.getAccRect().x, lr.getAccRect().y, -1); |
| } |
| } |
| |
| static void paintText(Graphics g, SynthMenuItemLayoutHelper lh, |
| MenuItemLayoutHelper.LayoutResult lr) { |
| if (!lh.getText().equals("")) { |
| if (lh.getHtmlView() != null) { |
| // Text is HTML |
| lh.getHtmlView().paint(g, lr.getTextRect()); |
| } else { |
| // Text isn't HTML |
| g.setColor(lh.getStyle().getColor( |
| lh.getContext(), ColorType.TEXT_FOREGROUND)); |
| g.setFont(lh.getStyle().getFont(lh.getContext())); |
| lh.getGraphicsUtils().paintText(lh.getContext(), g, lh.getText(), |
| lr.getTextRect().x, lr.getTextRect().y, |
| lh.getMenuItem().getDisplayedMnemonicIndex()); |
| } |
| } |
| } |
| |
| static void paintArrowIcon(Graphics g, SynthMenuItemLayoutHelper lh, |
| MenuItemLayoutHelper.LayoutResult lr) { |
| if (lh.getArrowIcon() != null) { |
| Rectangle arrowRect = lr.getArrowRect(); |
| SynthIcon.paintIcon(lh.getArrowIcon(), lh.getContext(), g, |
| arrowRect.x, arrowRect.y, arrowRect.width, arrowRect.height); |
| } |
| } |
| |
| /** |
| * Wraps a SynthIcon around the Icon interface, forwarding calls to |
| * the SynthIcon with a given SynthContext. |
| */ |
| private static class SynthIconWrapper implements Icon { |
| private static final java.util.List<SynthIconWrapper> CACHE = new java.util.ArrayList<SynthIconWrapper>(1); |
| |
| private SynthIcon synthIcon; |
| private SynthContext context; |
| |
| static SynthIconWrapper get(SynthIcon icon, SynthContext context) { |
| synchronized(CACHE) { |
| int size = CACHE.size(); |
| if (size > 0) { |
| SynthIconWrapper wrapper = CACHE.remove(size - 1); |
| wrapper.reset(icon, context); |
| return wrapper; |
| } |
| } |
| return new SynthIconWrapper(icon, context); |
| } |
| |
| static void release(SynthIconWrapper wrapper) { |
| wrapper.reset(null, null); |
| synchronized(CACHE) { |
| CACHE.add(wrapper); |
| } |
| } |
| |
| SynthIconWrapper(SynthIcon icon, SynthContext context) { |
| reset(icon, context); |
| } |
| |
| void reset(SynthIcon icon, SynthContext context) { |
| synthIcon = icon; |
| this.context = context; |
| } |
| |
| public void paintIcon(Component c, Graphics g, int x, int y) { |
| // This is a noop as this should only be for sizing calls. |
| } |
| |
| public int getIconWidth() { |
| return synthIcon.getIconWidth(context); |
| } |
| |
| public int getIconHeight() { |
| return synthIcon.getIconHeight(context); |
| } |
| } |
| } |
