| /* | |
| * Copyright (c) 2002, 2024, 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 java.awt.Component; | |
| import java.awt.Font; | |
| import java.awt.FontMetrics; | |
| import java.awt.Graphics; | |
| import java.awt.Insets; | |
| import java.awt.LayoutManager; | |
| import java.awt.Rectangle; | |
| import java.awt.event.MouseEvent; | |
| import java.awt.event.MouseListener; | |
| import java.awt.event.MouseMotionListener; | |
| import java.beans.PropertyChangeEvent; | |
| import java.beans.PropertyChangeListener; | |
| import javax.swing.BorderFactory; | |
| import javax.swing.Icon; | |
| import javax.swing.JButton; | |
| import javax.swing.JComponent; | |
| import javax.swing.JTabbedPane; | |
| import javax.swing.SwingUtilities; | |
| import javax.swing.UIManager; | |
| import javax.swing.plaf.ComponentUI; | |
| import javax.swing.plaf.UIResource; | |
| import javax.swing.plaf.basic.BasicTabbedPaneUI; | |
| import javax.swing.text.View; | |
| import sun.swing.SwingUtilities2; | |
| /** | |
| * Provides the Synth L&F UI delegate for | |
| * {@link javax.swing.JTabbedPane}. | |
| * | |
| * <p>Looks up the {@code selectedTabPadInsets} property from the Style, | |
| * which represents additional insets for the selected tab. | |
| * | |
| * @author Scott Violet | |
| * @since 1.7 | |
| */ | |
| public class SynthTabbedPaneUI extends BasicTabbedPaneUI | |
| implements PropertyChangeListener, SynthUI { | |
| /** | |
| * <p>If non-zero, tabOverlap indicates the amount that the tab bounds | |
| * should be altered such that they would overlap with a tab on either the | |
| * leading or trailing end of a run (ie: in TOP, this would be on the left | |
| * or right).</p> | |
| * <p>A positive overlap indicates that tabs should overlap right/down, | |
| * while a negative overlap indicates that tabs should overlap left/up.</p> | |
| * | |
| * <p>When tabOverlap is specified, it both changes the x position and width | |
| * of the tab if in TOP or BOTTOM placement, and changes the y position and | |
| * height if in LEFT or RIGHT placement.</p> | |
| * | |
| * <p>This is done for the following reason. Consider a run of 10 tabs. | |
| * There are 9 gaps between these tabs. If you specified a tabOverlap of | |
| * "-1", then each of the tabs "x" values will be shifted left. This leaves | |
| * 9 pixels of space to the right of the right-most tab unpainted. So, each | |
| * tab's width is also extended by 1 pixel to make up the difference.</p> | |
| * | |
| * <p>This property respects the RTL component orientation.</p> | |
| */ | |
| private int tabOverlap = 0; | |
| /** | |
| * When a tabbed pane has multiple rows of tabs, this indicates whether | |
| * the tabs in the upper row(s) should extend to the base of the tab area, | |
| * or whether they should remain at their normal tab height. This does not | |
| * affect the bounds of the tabs, only the bounds of area painted by the | |
| * tabs. The text position does not change. The result is that the bottom | |
| * border of the upper row of tabs becomes fully obscured by the lower tabs, | |
| * resulting in a cleaner look. | |
| */ | |
| private boolean extendTabsToBase = false; | |
| private SynthContext tabAreaContext; | |
| private SynthContext tabContext; | |
| private SynthContext tabContentContext; | |
| private SynthStyle style; | |
| private SynthStyle tabStyle; | |
| private SynthStyle tabAreaStyle; | |
| private SynthStyle tabContentStyle; | |
| private Rectangle textRect = new Rectangle(); | |
| private Rectangle iconRect = new Rectangle(); | |
| private Rectangle tabAreaBounds = new Rectangle(); | |
| //added for the Nimbus look and feel, where the tab area is painted differently depending on the | |
| //state for the selected tab | |
| private boolean tabAreaStatesMatchSelectedTab = false; | |
| //added for the Nimbus LAF to ensure that the labels don't move whether the tab is selected or not | |
| private boolean nudgeSelectedLabel = true; | |
| private boolean selectedTabIsPressed = false; | |
| /** | |
| * | |
| * Constructs a {@code SynthTabbedPaneUI}. | |
| */ | |
| public SynthTabbedPaneUI() {} | |
| /** | |
| * Creates a new UI object for the given component. | |
| * | |
| * @param c component to create UI object for | |
| * @return the UI object | |
| */ | |
| public static ComponentUI createUI(JComponent c) { | |
| return new SynthTabbedPaneUI(); | |
| } | |
| private boolean scrollableTabLayoutEnabled() { | |
| return (tabPane.getTabLayoutPolicy() == JTabbedPane.SCROLL_TAB_LAYOUT); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void installDefaults() { | |
| updateStyle(tabPane); | |
| } | |
| private void updateStyle(JTabbedPane c) { | |
| SynthContext context = getContext(c, ENABLED); | |
| SynthStyle oldStyle = style; | |
| style = SynthLookAndFeel.updateStyle(context, this); | |
| // Add properties other than JComponent colors, Borders and | |
| // opacity settings here: | |
| if (style != oldStyle) { | |
| tabRunOverlay = | |
| style.getInt(context, "TabbedPane.tabRunOverlay", 0); | |
| tabOverlap = style.getInt(context, "TabbedPane.tabOverlap", 0); | |
| extendTabsToBase = style.getBoolean(context, | |
| "TabbedPane.extendTabsToBase", false); | |
| textIconGap = style.getInt(context, "TabbedPane.textIconGap", 0); | |
| selectedTabPadInsets = (Insets)style.get(context, | |
| "TabbedPane.selectedTabPadInsets"); | |
| if (selectedTabPadInsets == null) { | |
| selectedTabPadInsets = new Insets(0, 0, 0, 0); | |
| } | |
| tabAreaStatesMatchSelectedTab = style.getBoolean(context, | |
| "TabbedPane.tabAreaStatesMatchSelectedTab", false); | |
| nudgeSelectedLabel = style.getBoolean(context, | |
| "TabbedPane.nudgeSelectedLabel", true); | |
| if (oldStyle != null) { | |
| uninstallKeyboardActions(); | |
| installKeyboardActions(); | |
| } | |
| } | |
| tabContext = getContext(c, Region.TABBED_PANE_TAB, ENABLED); | |
| this.tabStyle = SynthLookAndFeel.updateStyle(tabContext, this); | |
| tabInsets = tabStyle.getInsets(tabContext, null); | |
| tabAreaContext = getContext(c, Region.TABBED_PANE_TAB_AREA, ENABLED); | |
| this.tabAreaStyle = SynthLookAndFeel.updateStyle(tabAreaContext, this); | |
| tabAreaInsets = tabAreaStyle.getInsets(tabAreaContext, null); | |
| tabContentContext = getContext(c, Region.TABBED_PANE_CONTENT, ENABLED); | |
| this.tabContentStyle = SynthLookAndFeel.updateStyle(tabContentContext, | |
| this); | |
| contentBorderInsets = | |
| tabContentStyle.getInsets(tabContentContext, null); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void installListeners() { | |
| super.installListeners(); | |
| tabPane.addPropertyChangeListener(this); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void uninstallListeners() { | |
| super.uninstallListeners(); | |
| tabPane.removePropertyChangeListener(this); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void uninstallDefaults() { | |
| SynthContext context = getContext(tabPane, ENABLED); | |
| style.uninstallDefaults(context); | |
| style = null; | |
| tabStyle.uninstallDefaults(tabContext); | |
| tabContext = null; | |
| tabStyle = null; | |
| tabAreaStyle.uninstallDefaults(tabAreaContext); | |
| tabAreaContext = null; | |
| tabAreaStyle = null; | |
| tabContentStyle.uninstallDefaults(tabContentContext); | |
| tabContentContext = null; | |
| tabContentStyle = null; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public SynthContext getContext(JComponent c) { | |
| return getContext(c, SynthLookAndFeel.getComponentState(c)); | |
| } | |
| private SynthContext getContext(JComponent c, int state) { | |
| return SynthContext.getContext(c, style, state); | |
| } | |
| private SynthContext getContext(JComponent c, Region subregion, int state){ | |
| SynthStyle style = null; | |
| if (subregion == Region.TABBED_PANE_TAB) { | |
| style = tabStyle; | |
| } | |
| else if (subregion == Region.TABBED_PANE_TAB_AREA) { | |
| style = tabAreaStyle; | |
| } | |
| else if (subregion == Region.TABBED_PANE_CONTENT) { | |
| style = tabContentStyle; | |
| } | |
| return SynthContext.getContext(c, subregion, style, state); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected JButton createScrollButton(int direction) { | |
| // added for Nimbus LAF so that it can use the basic arrow buttons | |
| // UIManager is queried directly here because this is called before | |
| // updateStyle is called so the style can not be queried directly | |
| if (UIManager.getBoolean("TabbedPane.useBasicArrows")) { | |
| JButton btn = super.createScrollButton(direction); | |
| btn.setBorder(BorderFactory.createEmptyBorder()); | |
| return btn; | |
| } | |
| return new SynthScrollableTabButton(direction); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public void propertyChange(PropertyChangeEvent e) { | |
| if (SynthLookAndFeel.shouldUpdateStyle(e)) { | |
| updateStyle(tabPane); | |
| } | |
| } | |
| /** | |
| * {@inheritDoc} | |
| * | |
| * Overridden to keep track of whether the selected tab is also pressed. | |
| */ | |
| @Override | |
| protected MouseListener createMouseListener() { | |
| final MouseListener delegate = super.createMouseListener(); | |
| final MouseMotionListener delegate2 = (MouseMotionListener)delegate; | |
| return new MouseListener() { | |
| public void mouseClicked(MouseEvent e) { delegate.mouseClicked(e); } | |
| public void mouseEntered(MouseEvent e) { delegate.mouseEntered(e); } | |
| public void mouseExited(MouseEvent e) { delegate.mouseExited(e); } | |
| public void mousePressed(MouseEvent e) { | |
| if (!tabPane.isEnabled()) { | |
| return; | |
| } | |
| int tabIndex = tabForCoordinate(tabPane, e.getX(), e.getY()); | |
| if (tabIndex >= 0 && tabPane.isEnabledAt(tabIndex)) { | |
| if (tabIndex == tabPane.getSelectedIndex()) { | |
| // Clicking on selected tab | |
| selectedTabIsPressed = true; | |
| //TODO need to just repaint the tab area! | |
| tabPane.repaint(); | |
| } | |
| } | |
| //forward the event (this will set the selected index, or none at all | |
| delegate.mousePressed(e); | |
| } | |
| public void mouseReleased(MouseEvent e) { | |
| if (selectedTabIsPressed) { | |
| selectedTabIsPressed = false; | |
| //TODO need to just repaint the tab area! | |
| tabPane.repaint(); | |
| } | |
| //forward the event | |
| delegate.mouseReleased(e); | |
| //hack: The super method *should* be setting the mouse-over property correctly | |
| //here, but it doesn't. That is, when the mouse is released, whatever tab is below the | |
| //released mouse should be in rollover state. But, if you select a tab and don't | |
| //move the mouse, this doesn't happen. Hence, forwarding the event. | |
| delegate2.mouseMoved(e); | |
| } | |
| }; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected int getTabLabelShiftX(int tabPlacement, int tabIndex, boolean isSelected) { | |
| if (nudgeSelectedLabel) { | |
| return super.getTabLabelShiftX(tabPlacement, tabIndex, isSelected); | |
| } else { | |
| return 0; | |
| } | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected int getTabLabelShiftY(int tabPlacement, int tabIndex, boolean isSelected) { | |
| if (nudgeSelectedLabel) { | |
| return super.getTabLabelShiftY(tabPlacement, tabIndex, isSelected); | |
| } else { | |
| return 0; | |
| } | |
| } | |
| /** | |
| * Notifies this UI delegate to repaint the specified component. | |
| * This method paints the component background, then calls | |
| * the {@link #paint(SynthContext,Graphics)} method. | |
| * | |
| * <p>In general, this method does not need to be overridden by subclasses. | |
| * All Look and Feel rendering code should reside in the {@code paint} method. | |
| * | |
| * @param g the {@code Graphics} object used for painting | |
| * @param c the component being painted | |
| * @see #paint(SynthContext,Graphics) | |
| */ | |
| @Override | |
| public void update(Graphics g, JComponent c) { | |
| SynthContext context = getContext(c); | |
| SynthLookAndFeel.update(context, g); | |
| context.getPainter().paintTabbedPaneBackground(context, | |
| g, 0, 0, c.getWidth(), c.getHeight()); | |
| paint(context, g); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected int getBaseline(int tab) { | |
| if (tabPane.getTabComponentAt(tab) != null || | |
| getTextViewForTab(tab) != null) { | |
| return super.getBaseline(tab); | |
| } | |
| String title = tabPane.getTitleAt(tab); | |
| Font font = tabContext.getStyle().getFont(tabContext); | |
| FontMetrics metrics = getFontMetrics(font); | |
| Icon icon = getIconForTab(tab); | |
| textRect.setBounds(0, 0, 0, 0); | |
| iconRect.setBounds(0, 0, 0, 0); | |
| calcRect.setBounds(0, 0, Short.MAX_VALUE, maxTabHeight); | |
| tabContext.getStyle().getGraphicsUtils(tabContext).layoutText( | |
| tabContext, metrics, title, icon, SwingUtilities.CENTER, | |
| SwingUtilities.CENTER, SwingUtilities.LEADING, | |
| SwingUtilities.CENTER, calcRect, | |
| iconRect, textRect, textIconGap); | |
| return textRect.y + metrics.getAscent() + getBaselineOffset(); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| public void paintBorder(SynthContext context, Graphics g, int x, | |
| int y, int w, int h) { | |
| context.getPainter().paintTabbedPaneBorder(context, g, x, y, w, h); | |
| } | |
| /** | |
| * Paints the specified component according to the Look and Feel. | |
| * <p>This method is not used by Synth Look and Feel. | |
| * Painting is handled by the {@link #paint(SynthContext,Graphics)} method. | |
| * | |
| * @param g the {@code Graphics} object used for painting | |
| * @param c the component being painted | |
| * @see #paint(SynthContext,Graphics) | |
| */ | |
| @Override | |
| public void paint(Graphics g, JComponent c) { | |
| SynthContext context = getContext(c); | |
| paint(context, g); | |
| } | |
| /** | |
| * Paints the specified component. | |
| * | |
| * @param context context for the component being painted | |
| * @param g the {@code Graphics} object used for painting | |
| * @see #update(Graphics,JComponent) | |
| */ | |
| protected void paint(SynthContext context, Graphics g) { | |
| int selectedIndex = tabPane.getSelectedIndex(); | |
| int tabPlacement = tabPane.getTabPlacement(); | |
| ensureCurrentLayout(); | |
| // Paint tab area | |
| // If scrollable tabs are enabled, the tab area will be | |
| // painted by the scrollable tab panel instead. | |
| // | |
| if (!scrollableTabLayoutEnabled()) { // WRAP_TAB_LAYOUT | |
| Insets insets = tabPane.getInsets(); | |
| int x = insets.left; | |
| int y = insets.top; | |
| int width = tabPane.getWidth() - insets.left - insets.right; | |
| int height = tabPane.getHeight() - insets.top - insets.bottom; | |
| int size; | |
| switch(tabPlacement) { | |
| case LEFT: | |
| width = calculateTabAreaWidth(tabPlacement, runCount, | |
| maxTabWidth); | |
| break; | |
| case RIGHT: | |
| size = calculateTabAreaWidth(tabPlacement, runCount, | |
| maxTabWidth); | |
| x = x + width - size; | |
| width = size; | |
| break; | |
| case BOTTOM: | |
| size = calculateTabAreaHeight(tabPlacement, runCount, | |
| maxTabHeight); | |
| y = y + height - size; | |
| height = size; | |
| break; | |
| case TOP: | |
| default: | |
| height = calculateTabAreaHeight(tabPlacement, runCount, | |
| maxTabHeight); | |
| } | |
| tabAreaBounds.setBounds(x, y, width, height); | |
| if (g.getClipBounds().intersects(tabAreaBounds)) { | |
| paintTabArea(tabAreaContext, g, tabPlacement, | |
| selectedIndex, tabAreaBounds); | |
| } | |
| } | |
| // Paint content border | |
| paintContentBorder(tabContentContext, g, tabPlacement, selectedIndex); | |
| } | |
| protected void paintTabArea(Graphics g, int tabPlacement, | |
| int selectedIndex) { | |
| // This can be invoked from ScrollabeTabPanel | |
| Insets insets = tabPane.getInsets(); | |
| int x = insets.left; | |
| int y = insets.top; | |
| int width = tabPane.getWidth() - insets.left - insets.right; | |
| int height = tabPane.getHeight() - insets.top - insets.bottom; | |
| paintTabArea(tabAreaContext, g, tabPlacement, selectedIndex, | |
| new Rectangle(x, y, width, height)); | |
| } | |
| private void paintTabArea(SynthContext ss, Graphics g, | |
| int tabPlacement, int selectedIndex, | |
| Rectangle tabAreaBounds) { | |
| Rectangle clipRect = g.getClipBounds(); | |
| //if the tab area's states should match that of the selected tab, then | |
| //first update the selected tab's states, then set the state | |
| //for the tab area to match | |
| //otherwise, restore the tab area's state to ENABLED (which is the | |
| //only supported state otherwise). | |
| if (tabAreaStatesMatchSelectedTab && selectedIndex >= 0) { | |
| updateTabContext(selectedIndex, true, selectedTabIsPressed, | |
| (getRolloverTab() == selectedIndex), | |
| (getFocusIndex() == selectedIndex)); | |
| ss.setComponentState(tabContext.getComponentState()); | |
| } else { | |
| ss.setComponentState(SynthConstants.ENABLED); | |
| } | |
| // Paint the tab area. | |
| SynthLookAndFeel.updateSubregion(ss, g, tabAreaBounds); | |
| ss.getPainter().paintTabbedPaneTabAreaBackground(ss, g, | |
| tabAreaBounds.x, tabAreaBounds.y, tabAreaBounds.width, | |
| tabAreaBounds.height, tabPlacement); | |
| ss.getPainter().paintTabbedPaneTabAreaBorder(ss, g, tabAreaBounds.x, | |
| tabAreaBounds.y, tabAreaBounds.width, tabAreaBounds.height, | |
| tabPlacement); | |
| int tabCount = tabPane.getTabCount(); | |
| iconRect.setBounds(0, 0, 0, 0); | |
| textRect.setBounds(0, 0, 0, 0); | |
| // Paint tabRuns of tabs from back to front | |
| for (int i = runCount - 1; i >= 0; i--) { | |
| int start = tabRuns[i]; | |
| int next = tabRuns[(i == runCount - 1)? 0 : i + 1]; | |
| int end = (next != 0? next - 1: tabCount - 1); | |
| for (int j = start; j <= end; j++) { | |
| if (rects[j].intersects(clipRect) && selectedIndex != j) { | |
| paintTab(tabContext, g, tabPlacement, rects, j, iconRect, | |
| textRect); | |
| } | |
| } | |
| } | |
| if (selectedIndex >= 0) { | |
| if (rects[selectedIndex].intersects(clipRect)) { | |
| paintTab(tabContext, g, tabPlacement, rects, selectedIndex, | |
| iconRect, textRect); | |
| } | |
| } | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected void setRolloverTab(int index) { | |
| int oldRolloverTab = getRolloverTab(); | |
| super.setRolloverTab(index); | |
| Rectangle r = null; | |
| if (oldRolloverTab != index && tabAreaStatesMatchSelectedTab) { | |
| //TODO need to just repaint the tab area! | |
| tabPane.repaint(); | |
| } else { | |
| if ((oldRolloverTab >= 0) && (oldRolloverTab < tabPane.getTabCount())) { | |
| r = getTabBounds(tabPane, oldRolloverTab); | |
| if (r != null) { | |
| tabPane.repaint(r); | |
| } | |
| } | |
| if (index >= 0) { | |
| r = getTabBounds(tabPane, index); | |
| if (r != null) { | |
| tabPane.repaint(r); | |
| } | |
| } | |
| } | |
| } | |
| private void paintTab(SynthContext ss, Graphics g, | |
| int tabPlacement, Rectangle[] rects, int tabIndex, | |
| Rectangle iconRect, Rectangle textRect) { | |
| Rectangle tabRect = rects[tabIndex]; | |
| int selectedIndex = tabPane.getSelectedIndex(); | |
| boolean isSelected = selectedIndex == tabIndex; | |
| updateTabContext(tabIndex, isSelected, isSelected && selectedTabIsPressed, | |
| (getRolloverTab() == tabIndex), | |
| (getFocusIndex() == tabIndex)); | |
| SynthLookAndFeel.updateSubregion(ss, g, tabRect); | |
| int x = tabRect.x; | |
| int y = tabRect.y; | |
| int height = tabRect.height; | |
| int width = tabRect.width; | |
| int placement = tabPane.getTabPlacement(); | |
| if (extendTabsToBase && runCount > 1) { | |
| //paint this tab such that its edge closest to the base is equal to | |
| //edge of the selected tab closest to the base. In terms of the TOP | |
| //tab placement, this will cause the bottom of each tab to be | |
| //painted even with the bottom of the selected tab. This is because | |
| //in each tab placement (TOP, LEFT, BOTTOM, RIGHT) the selected tab | |
| //is closest to the base. | |
| if (selectedIndex >= 0) { | |
| Rectangle r = rects[selectedIndex]; | |
| switch (placement) { | |
| case TOP: | |
| int bottomY = r.y + r.height; | |
| height = bottomY - tabRect.y; | |
| break; | |
| case LEFT: | |
| int rightX = r.x + r.width; | |
| width = rightX - tabRect.x; | |
| break; | |
| case BOTTOM: | |
| int topY = r.y; | |
| height = (tabRect.y + tabRect.height) - topY; | |
| y = topY; | |
| break; | |
| case RIGHT: | |
| int leftX = r.x; | |
| width = (tabRect.x + tabRect.width) - leftX; | |
| x = leftX; | |
| break; | |
| } | |
| } | |
| } | |
| tabContext.getPainter().paintTabbedPaneTabBackground(tabContext, g, | |
| x, y, width, height, tabIndex, placement); | |
| tabContext.getPainter().paintTabbedPaneTabBorder(tabContext, g, | |
| x, y, width, height, tabIndex, placement); | |
| if (tabPane.getTabComponentAt(tabIndex) == null) { | |
| String title = tabPane.getTitleAt(tabIndex); | |
| String clippedTitle = title; | |
| Font font = ss.getStyle().getFont(ss); | |
| FontMetrics metrics = SwingUtilities2.getFontMetrics(tabPane, g, font); | |
| Icon icon = getIconForTab(tabIndex); | |
| layoutLabel(ss, tabPlacement, metrics, tabIndex, title, icon, | |
| tabRect, iconRect, textRect, isSelected); | |
| clippedTitle = SwingUtilities2.clipStringIfNecessary(null, metrics, | |
| title, textRect.width); | |
| paintIcon(g, tabPlacement, tabIndex, icon, iconRect, isSelected); | |
| paintText(ss, g, tabPlacement, font, metrics, | |
| tabIndex, clippedTitle, textRect, isSelected); | |
| } | |
| } | |
| private void layoutLabel(SynthContext ss, int tabPlacement, | |
| FontMetrics metrics, int tabIndex, | |
| String title, Icon icon, | |
| Rectangle tabRect, Rectangle iconRect, | |
| Rectangle textRect, boolean isSelected ) { | |
| View v = getTextViewForTab(tabIndex); | |
| if (v != null) { | |
| tabPane.putClientProperty("html", v); | |
| } | |
| textRect.x = textRect.y = iconRect.x = iconRect.y = 0; | |
| ss.getStyle().getGraphicsUtils(ss).layoutText(ss, metrics, title, | |
| icon, SwingUtilities.CENTER, SwingUtilities.CENTER, | |
| SwingUtilities.TRAILING, SwingUtilities.CENTER, | |
| tabRect, iconRect, textRect, textIconGap); | |
| tabPane.putClientProperty("html", null); | |
| int xNudge = getTabLabelShiftX(tabPlacement, tabIndex, isSelected); | |
| int yNudge = getTabLabelShiftY(tabPlacement, tabIndex, isSelected); | |
| iconRect.x += xNudge; | |
| iconRect.y += yNudge; | |
| textRect.x += xNudge; | |
| textRect.y += yNudge; | |
| } | |
| private void paintText(SynthContext ss, | |
| Graphics g, int tabPlacement, | |
| Font font, FontMetrics metrics, int tabIndex, | |
| String title, Rectangle textRect, | |
| boolean isSelected) { | |
| g.setFont(font); | |
| View v = getTextViewForTab(tabIndex); | |
| if (v != null) { | |
| // html | |
| v.paint(g, textRect); | |
| } else { | |
| // plain text | |
| int mnemIndex = tabPane.getDisplayedMnemonicIndexAt(tabIndex); | |
| g.setColor(ss.getStyle().getColor(ss, ColorType.TEXT_FOREGROUND)); | |
| ss.getStyle().getGraphicsUtils(ss).paintText(ss, g, title, | |
| textRect, mnemIndex); | |
| } | |
| } | |
| private void paintContentBorder(SynthContext ss, Graphics g, | |
| int tabPlacement, int selectedIndex) { | |
| int width = tabPane.getWidth(); | |
| int height = tabPane.getHeight(); | |
| Insets insets = tabPane.getInsets(); | |
| int x = insets.left; | |
| int y = insets.top; | |
| int w = width - insets.right - insets.left; | |
| int h = height - insets.top - insets.bottom; | |
| switch(tabPlacement) { | |
| case LEFT: | |
| x += calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); | |
| w -= (x - insets.left); | |
| break; | |
| case RIGHT: | |
| w -= calculateTabAreaWidth(tabPlacement, runCount, maxTabWidth); | |
| break; | |
| case BOTTOM: | |
| h -= calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); | |
| break; | |
| case TOP: | |
| default: | |
| y += calculateTabAreaHeight(tabPlacement, runCount, maxTabHeight); | |
| h -= (y - insets.top); | |
| } | |
| SynthLookAndFeel.updateSubregion(ss, g, new Rectangle(x, y, w, h)); | |
| ss.getPainter().paintTabbedPaneContentBackground(ss, g, x, y, | |
| w, h); | |
| ss.getPainter().paintTabbedPaneContentBorder(ss, g, x, y, w, h); | |
| } | |
| private void ensureCurrentLayout() { | |
| if (!tabPane.isValid()) { | |
| tabPane.validate(); | |
| } | |
| /* If tabPane doesn't have a peer yet, the validate() call will | |
| * silently fail. We handle that by forcing a layout if tabPane | |
| * is still invalid. See bug 4237677. | |
| */ | |
| if (!tabPane.isValid()) { | |
| TabbedPaneLayout layout = (TabbedPaneLayout)tabPane.getLayout(); | |
| layout.calculateLayoutInfo(); | |
| } | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected int calculateMaxTabHeight(int tabPlacement) { | |
| FontMetrics metrics = getFontMetrics(tabContext.getStyle().getFont( | |
| tabContext)); | |
| int tabCount = tabPane.getTabCount(); | |
| int result = 0; | |
| int fontHeight = metrics.getHeight(); | |
| for(int i = 0; i < tabCount; i++) { | |
| result = Math.max(calculateTabHeight(tabPlacement, i, fontHeight), result); | |
| } | |
| return result; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected int calculateTabWidth(int tabPlacement, int tabIndex, | |
| FontMetrics metrics) { | |
| Icon icon = getIconForTab(tabIndex); | |
| Insets tabInsets = getTabInsets(tabPlacement, tabIndex); | |
| int width = tabInsets.left + tabInsets.right; | |
| Component tabComponent = tabPane.getTabComponentAt(tabIndex); | |
| if (tabComponent != null) { | |
| width += tabComponent.getPreferredSize().width; | |
| } else { | |
| if (icon != null) { | |
| width += icon.getIconWidth() + textIconGap; | |
| } | |
| View v = getTextViewForTab(tabIndex); | |
| if (v != null) { | |
| // html | |
| width += (int) v.getPreferredSpan(View.X_AXIS); | |
| } else { | |
| // plain text | |
| String title = tabPane.getTitleAt(tabIndex); | |
| width += tabContext.getStyle().getGraphicsUtils(tabContext). | |
| computeStringWidth(tabContext, metrics.getFont(), | |
| metrics, title); | |
| } | |
| } | |
| return width; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected int calculateMaxTabWidth(int tabPlacement) { | |
| FontMetrics metrics = getFontMetrics(tabContext.getStyle().getFont( | |
| tabContext)); | |
| int tabCount = tabPane.getTabCount(); | |
| int result = 0; | |
| for(int i = 0; i < tabCount; i++) { | |
| result = Math.max(calculateTabWidth(tabPlacement, i, metrics), | |
| result); | |
| } | |
| return result; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected Insets getTabInsets(int tabPlacement, int tabIndex) { | |
| updateTabContext(tabIndex, false, false, false, | |
| (getFocusIndex() == tabIndex)); | |
| return tabInsets; | |
| } | |
| /** | |
| * {@inheritDoc} | |
| */ | |
| @Override | |
| protected FontMetrics getFontMetrics() { | |
| return getFontMetrics(tabContext.getStyle().getFont(tabContext)); | |
| } | |
| private FontMetrics getFontMetrics(Font font) { | |
| if (font == null) { | |
| font = tabPane.getFont(); | |
| } | |
| return tabPane.getFontMetrics(font); | |
| } | |
| private void updateTabContext(int index, boolean selected, | |
| boolean isMouseDown, boolean isMouseOver, boolean hasFocus) { | |
| int state = 0; | |
| if (!tabPane.isEnabled() || !tabPane.isEnabledAt(index)) { | |
| state |= SynthConstants.DISABLED; | |
| if (selected) { | |
| state |= SynthConstants.SELECTED; | |
| } | |
| } | |
| else if (selected) { | |
| state |= (SynthConstants.ENABLED | SynthConstants.SELECTED); | |
| if (isMouseOver && UIManager.getBoolean("TabbedPane.isTabRollover")) { | |
| state |= SynthConstants.MOUSE_OVER; | |
| } | |
| } | |
| else if (isMouseOver) { | |
| state |= (SynthConstants.ENABLED | SynthConstants.MOUSE_OVER); | |
| } | |
| else { | |
| state = SynthLookAndFeel.getComponentState(tabPane); | |
| state &= ~SynthConstants.FOCUSED; // don't use tabbedpane focus state | |
| } | |
| if (hasFocus && tabPane.hasFocus()) { | |
| state |= SynthConstants.FOCUSED; // individual tab has focus | |
| } | |
| if (isMouseDown) { | |
| state |= SynthConstants.PRESSED; | |
| } | |
| tabContext.setComponentState(state); | |
| } | |
| /** | |
| * {@inheritDoc} | |
| * | |
| * Overridden to create a TabbedPaneLayout subclass which takes into | |
| * account tabOverlap. | |
| */ | |
| @Override | |
| protected LayoutManager createLayoutManager() { | |
| if (tabPane.getTabLayoutPolicy() == JTabbedPane.SCROLL_TAB_LAYOUT) { | |
| return super.createLayoutManager(); | |
| } else { /* WRAP_TAB_LAYOUT */ | |
| return new TabbedPaneLayout() { | |
| @Override | |
| public void calculateLayoutInfo() { | |
| super.calculateLayoutInfo(); | |
| //shift all the tabs, if necessary | |
| if (tabOverlap != 0) { | |
| int tabCount = tabPane.getTabCount(); | |
| //left-to-right/right-to-left only affects layout | |
| //when placement is TOP or BOTTOM | |
| boolean ltr = tabPane.getComponentOrientation().isLeftToRight(); | |
| for (int i = runCount - 1; i >= 0; i--) { | |
| int start = tabRuns[i]; | |
| int next = tabRuns[(i == runCount - 1)? 0 : i + 1]; | |
| int end = (next != 0? next - 1: tabCount - 1); | |
| for (int j = start+1; j <= end; j++) { | |
| // xshift and yshift represent the amount & | |
| // direction to shift the tab in their | |
| // respective axis. | |
| int xshift = 0; | |
| int yshift = 0; | |
| // configure xshift and y shift based on tab | |
| // position and ltr/rtl | |
| switch (tabPane.getTabPlacement()) { | |
| case JTabbedPane.TOP: | |
| case JTabbedPane.BOTTOM: | |
| xshift = ltr ? tabOverlap : -tabOverlap; | |
| break; | |
| case JTabbedPane.LEFT: | |
| case JTabbedPane.RIGHT: | |
| yshift = tabOverlap; | |
| break; | |
| default: //do nothing | |
| } | |
| rects[j].x += xshift; | |
| rects[j].y += yshift; | |
| rects[j].width += Math.abs(xshift); | |
| rects[j].height += Math.abs(yshift); | |
| } | |
| } | |
| } | |
| } | |
| }; | |
| } | |
| } | |
| /** | |
| * A subclass of {@code SynthArrowButton} that implements | |
| * {@code UIResource}. | |
| */ | |
| @SuppressWarnings("serial") // Superclass is not serializable across versions | |
| private static class SynthScrollableTabButton extends SynthArrowButton implements | |
| UIResource { | |
| public SynthScrollableTabButton(int direction) { | |
| super(direction); | |
| setName("TabbedPane.button"); | |
| } | |
| } | |
| } |