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Diffstat (limited to 'libjava/classpath/javax/swing/plaf/metal/MetalTabbedPaneUI.java')
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diff --git a/libjava/classpath/javax/swing/plaf/metal/MetalTabbedPaneUI.java b/libjava/classpath/javax/swing/plaf/metal/MetalTabbedPaneUI.java new file mode 100644 index 000000000..77705ba0e --- /dev/null +++ b/libjava/classpath/javax/swing/plaf/metal/MetalTabbedPaneUI.java @@ -0,0 +1,1269 @@ +/* MetalTabbedPaneUI.java + Copyright (C) 2005, 2006 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath 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 for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.swing.plaf.metal; + +import java.awt.Color; +import java.awt.Graphics; +import java.awt.LayoutManager; +import java.awt.Rectangle; + +import javax.swing.JComponent; +import javax.swing.JTabbedPane; +import javax.swing.UIManager; +import javax.swing.plaf.ComponentUI; +import javax.swing.plaf.UIResource; +import javax.swing.plaf.basic.BasicTabbedPaneUI; + +/** + * A UI delegate for the {@link JTabbedPane} component. + */ +public class MetalTabbedPaneUI extends BasicTabbedPaneUI +{ + + /** + * A {@link LayoutManager} responsible for placing all the tabs and the + * visible component inside the {@link JTabbedPane}. This class is only used + * for {@link JTabbedPane#WRAP_TAB_LAYOUT}. + * + * @specnote Apparently this class was intended to be protected, + * but was made public by a compiler bug and is now + * public for compatibility. + */ + public class TabbedPaneLayout + extends BasicTabbedPaneUI.TabbedPaneLayout + { + /** + * Creates a new instance of the layout manager. + */ + public TabbedPaneLayout() + { + // Nothing to do here. + } + + /** + * Overridden to do nothing, because tab runs are not rotated in the + * {@link MetalLookAndFeel}. + * + * @param tabPlacement the tab placement (one of {@link #TOP}, + * {@link #BOTTOM}, {@link #LEFT} or {@link #RIGHT}). + * @param selectedRun the index of the selected run. + */ + protected void rotateTabRuns(int tabPlacement, int selectedRun) + { + // do nothing, because tab runs are not rotated in the MetalLookAndFeel + } + + /** + * Overridden to do nothing, because the selected tab does not have extra + * padding in the {@link MetalLookAndFeel}. + * + * @param tabPlacement the tab placement (one of {@link #TOP}, + * {@link #BOTTOM}, {@link #LEFT} or {@link #RIGHT}). + * @param selectedIndex the index of the selected tab. + */ + protected void padSelectedTab(int tabPlacement, int selectedIndex) + { + // do nothing, because the selected tab does not have extra padding in + // the MetalLookAndFeel + } + + /** + * Overridden because tab runs are only normalized for TOP and BOTTOM + * tab placement in the Metal L&F. + */ + protected void normalizeTabRuns(int tabPlacement, int tabCount, int start, + int max) + { + if (tabPlacement == TOP || tabPlacement == BOTTOM) + super.normalizeTabRuns(tabPlacement, tabCount, start, max); + } + } + + /** + * The minimum tab width. + */ + protected int minTabWidth; + + /** + * The color for the selected tab. + */ + protected Color selectColor; + + /** + * The color for a highlighted selected tab. + */ + protected Color selectHighlight; + + /** + * The background color used for the tab area. + */ + protected Color tabAreaBackground; + + /** The graphics to draw the highlight below the tab. */ + private Graphics hg; + + /** + * Indicates if the tabs are having their background filled. + */ + private boolean tabsOpaque; + + /** + * Constructs a new instance of MetalTabbedPaneUI. + */ + public MetalTabbedPaneUI() + { + super(); + } + + /** + * Returns an instance of MetalTabbedPaneUI. + * + * @param component the component for which we return an UI instance + * + * @return an instance of MetalTabbedPaneUI + */ + public static ComponentUI createUI(JComponent component) + { + return new MetalTabbedPaneUI(); + } + + /** + * Creates and returns an instance of {@link TabbedPaneLayout}. + * + * @return A layout manager used by this UI delegate. + */ + protected LayoutManager createLayoutManager() + { + return (tabPane.getTabLayoutPolicy() == JTabbedPane.WRAP_TAB_LAYOUT) + ? new MetalTabbedPaneUI.TabbedPaneLayout() + : super.createLayoutManager(); + } + + /** + * Paints the border for a single tab. + * + * @param g the graphics device. + * @param tabPlacement the tab placement ({@link #TOP}, {@link #LEFT}, + * {@link #BOTTOM} or {@link #RIGHT}). + * @param tabIndex the index of the tab to draw the border for. + * @param x the x-coordinate for the tab's bounding rectangle. + * @param y the y-coordinate for the tab's bounding rectangle. + * @param w the width for the tab's bounding rectangle. + * @param h the height for the tab's bounding rectangle. + * @param isSelected indicates whether or not the tab is selected. + */ + protected void paintTabBorder(Graphics g, int tabPlacement, int tabIndex, + int x, int y, int w, int h, boolean isSelected) + { + int bottom = y + h - 1; + int right = x + w - 1; + + switch (tabPlacement) + { + case LEFT: + paintLeftTabBorder(tabIndex, g, x, y, w, h, bottom, right, isSelected); + break; + case BOTTOM: + paintBottomTabBorder(tabIndex, g, x, y, w, h, bottom, right, isSelected); + break; + case RIGHT: + paintRightTabBorder(tabIndex, g, x, y, w, h, bottom, right, isSelected); + break; + case TOP: + default: + paintTopTabBorder(tabIndex, g, x, y, w, h, bottom, right, isSelected); + } + } + + /** + * Paints the border for a tab assuming that the tab position is at the top + * ({@link #TOP}). + * + * @param tabIndex the tab index. + * @param g the graphics device. + * @param x the x-coordinate for the tab's bounding rectangle. + * @param y the y-coordinate for the tab's bounding rectangle. + * @param w the width for the tab's bounding rectangle. + * @param h the height for the tab's bounding rectangle. + * @param btm the y coordinate of the bottom border + * @param rght the x coordinate of the right border + * @param isSelected indicates whether the tab is selected. + */ + protected void paintTopTabBorder(int tabIndex, Graphics g, int x, int y, + int w, int h, int btm, int rght, boolean isSelected) + { + int tabCount = tabPane.getTabCount(); + int currentRun = getRunForTab(tabCount, tabIndex); + int right = w - 1; + int bottom = h - 1; + + // Paint gap. + if (shouldFillGap(currentRun, tabIndex, x, y)) + { + g.translate(x, y); + g.setColor(getColorForGap(currentRun, x, y + 1)); + g.fillRect(1, 0, 5, 3); + g.fillRect(1, 3, 2, 2); + g.translate(-x, -y); + } + + g.translate(x, y); + + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + if (isOcean && isSelected) + g.setColor(oceanSelectedBorder); + else + g.setColor(darkShadow); + + // Slant + g.drawLine(1, 5, 6, 0); + // Top. + g.drawLine(6, 0, right, 0); + // Right. + int lastIndex = lastTabInRun(tabCount, currentRun); + if (tabIndex == lastIndex) + g.drawLine(right, 1, right, bottom); + // Left. + int selectedIndex = tabPane.getSelectedIndex(); + if (isOcean && tabIndex - 1 == selectedIndex + && currentRun == getRunForTab(tabCount, selectedIndex)) + { + g.setColor(oceanSelectedBorder); + } + if (tabIndex != tabRuns[runCount - 1]) + { + if (isOcean && isSelected) + { + g.drawLine(0, 6, 0, bottom); + g.setColor(darkShadow); + g.drawLine(0, 0, 0, 5); + } + else + { + g.drawLine(0, 0, 0, bottom); + } + } + else + { + g.drawLine(0, 6, 0, bottom); + } + + // Paint the highlight. + g.setColor(isSelected ? selectHighlight : highlight); + // Slant. + g.drawLine(1, 6, 6, 1); + // Top. + g.drawLine(6, 1, right, 1); + // Left. + g.drawLine(1, 6, 1, bottom); + int firstIndex = tabRuns[currentRun]; + if (tabIndex == firstIndex && tabIndex != tabRuns[runCount - 1]) + { + if (tabPane.getSelectedIndex() == tabRuns[currentRun + 1]) + g.setColor(selectHighlight); + else + g.setColor(highlight); + g.drawLine(1, 0, 1, 4); + } + + g.translate(-x, -y); + } + + /** + * Paints the border for a tab assuming that the tab position is at the left + * ({@link #LEFT}). + * + * @param tabIndex the tab index. + * @param g the graphics device. + * @param x the x-coordinate for the tab's bounding rectangle. + * @param y the y-coordinate for the tab's bounding rectangle. + * @param w the width for the tab's bounding rectangle. + * @param h the height for the tab's bounding rectangle. + * @param btm ??? + * @param rght ??? + * @param isSelected indicates whether the tab is selected. + */ + protected void paintLeftTabBorder(int tabIndex, Graphics g, int x, int y, + int w, int h, int btm, int rght, boolean isSelected) + { + g.translate(x, y); + int bottom = h - 1; + int right = w - 1; + + int tabCount = tabPane.getTabCount(); + int currentRun = getRunForTab(tabCount, tabIndex); + int firstIndex = tabRuns[currentRun]; + + // Paint the part of the above tab. + if (tabIndex != firstIndex && tabIndex > 0 && tabsOpaque) + { + Color c; + if (tabPane.getSelectedIndex() == tabIndex - 1) + c = selectColor; + else + c = getUnselectedBackground(tabIndex - 1); + g.setColor(c); + g.fillRect(2, 0, 4, 3); + g.drawLine(2, 3, 2, 3); + } + + // Paint the highlight. + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + if (isOcean) + { + g.setColor(isSelected ? selectHighlight : MetalLookAndFeel.getWhite()); + } + else + { + g.setColor(isSelected ? selectHighlight : highlight); + } + // Slant. + g.drawLine(1, 6, 6, 1); + // Left. + g.drawLine(1, 6, 1, bottom); + // Top. + g.drawLine(6, 1, right, 1); + if (tabIndex != firstIndex) + { + if (isOcean) + { + g.setColor(MetalLookAndFeel.getWhite()); + } + g.drawLine(1, 0, 1, 4); + } + + // Paint border. + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + if (isOcean && isSelected) + { + g.setColor(oceanSelectedBorder); + } + else + { + g.setColor(darkShadow); + } + + // Slant. + g.drawLine(1, 5, 6, 0); + // Top. + g.drawLine(6, 0, right, 0); + // Bottom. + int lastIndex = lastTabInRun(tabCount, currentRun); + if (tabIndex == lastIndex) + { + g.drawLine(0, bottom, right, bottom); + } + // Left. + if (isOcean) + { + if (tabPane.getSelectedIndex() == tabIndex - 1) + { + g.drawLine(0, 6, 0, bottom); + if (tabIndex != firstIndex) + { + g.setColor(oceanSelectedBorder); + g.drawLine(0, 0, 0, 5); + } + } + else if (isSelected) + { + g.drawLine(0, 5, 0, bottom); + if (tabIndex != firstIndex) + { + g.setColor(darkShadow); + g.drawLine(0, 0, 0, 5); + } + } + else if (tabIndex != firstIndex) + { + g.drawLine(0, 0, 0, bottom); + } + else + { + g.drawLine(0, 6, 0, bottom); + } + } + else + { + if (tabIndex != firstIndex) + { + g.drawLine(0, 0, 0, bottom); + } + else + { + g.drawLine(0, 6, 0, bottom); + } + } + + g.translate(-x, -y); + } + + /** + * Paints the border for a tab assuming that the tab position is at the right + * ({@link #RIGHT}). + * + * @param tabIndex the tab index. + * @param g the graphics device. + * @param x the x-coordinate for the tab's bounding rectangle. + * @param y the y-coordinate for the tab's bounding rectangle. + * @param w the width for the tab's bounding rectangle. + * @param h the height for the tab's bounding rectangle. + * @param btm ??? + * @param rght ??? + * @param isSelected indicates whether the tab is selected. + */ + protected void paintRightTabBorder(int tabIndex, Graphics g, int x, int y, + int w, int h, int btm, int rght, boolean isSelected) + { + g.translate(x, y); + int bottom = h - 1; + int right = w - 1; + + int tabCount = tabPane.getTabCount(); + int currentRun = getRunForTab(tabCount, tabIndex); + int firstIndex = tabRuns[currentRun]; + + // Paint part of the above tab. + if (tabIndex != firstIndex && tabIndex > 0 && tabsOpaque) + { + Color c; + if (tabPane.getSelectedIndex() == tabIndex - 1) + c = selectColor; + else + c = getUnselectedBackground(tabIndex - 1); + g.setColor(c); + g.fillRect(right - 5, 0, 5, 3); + g.fillRect(right - 2, 3, 2, 2); + } + + // Paint highlight. + g.setColor(isSelected ? selectHighlight : highlight); + + // Slant. + g.drawLine(right - 6, 1, right - 1, 6); + // Top. + g.drawLine(0, 1, right - 6, 1); + // Left. + if (! isSelected) + { + g.drawLine(0, 1, 0, bottom); + } + + // Paint border. + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + if (isOcean && isSelected) + { + g.setColor(oceanSelectedBorder); + } + else + { + g.setColor(darkShadow); + } + + // Bottom. + int lastIndex = lastTabInRun(tabCount, currentRun); + if (tabIndex == lastIndex) + { + g.drawLine(0, bottom, right, bottom); + } + // Slant. + if (isOcean && tabPane.getSelectedIndex() == tabIndex - 1) + { + g.setColor(oceanSelectedBorder); + } + g.drawLine(right - 6, 0, right, 6); + // Top. + g.drawLine(0, 0, right - 6, 0); + // Right. + if (isOcean && isSelected) + { + g.drawLine(right, 6, right, bottom); + if (tabIndex != firstIndex) + { + g.setColor(darkShadow); + g.drawLine(right, 0, right, 5); + } + } + else if (isOcean && tabPane.getSelectedIndex() == tabIndex - 1) + { + if (tabIndex != firstIndex) + { + g.setColor(oceanSelectedBorder); + g.drawLine(right, 0, right, 6); + } + g.setColor(darkShadow); + g.drawLine(right, 7, right, bottom); + } + else if (tabIndex != firstIndex) + { + g.drawLine(right, 0, right, bottom); + } + else + { + g.drawLine(right, 6, right, bottom); + } + g.translate(-x, -y); + } + + /** + * Paints the border for a tab assuming that the tab position is at the bottom + * ({@link #BOTTOM}). + * + * @param tabIndex the tab index. + * @param g the graphics device. + * @param x the x-coordinate for the tab's bounding rectangle. + * @param y the y-coordinate for the tab's bounding rectangle. + * @param w the width for the tab's bounding rectangle. + * @param h the height for the tab's bounding rectangle. + * @param btm ??? + * @param rght ??? + * @param isSelected indicates whether the tab is selected. + */ + protected void paintBottomTabBorder(int tabIndex, Graphics g, int x, int y, + int w, int h, int btm, int rght, boolean isSelected) + { + int bottom = h - 1; + int right = w - 1; + + int tabCount = tabPane.getTabCount(); + int currentRun = getRunForTab(tabCount, tabIndex); + // Paint gap if necessary. + if (shouldFillGap(currentRun, tabIndex, x, y)) + { + g.translate(x, y); + g.setColor(getColorForGap(currentRun, x, y)); + g.fillRect(1, bottom - 4, 3, 5); + g.fillRect(4, bottom - 1, 2, 2); + g.translate(-x, -y); + } + + g.translate(x, y); + + // Paint border. + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + if (isOcean && isSelected) + { + g.setColor(oceanSelectedBorder); + } + else + { + g.setColor(darkShadow); + } + // Slant. + g.drawLine(1, bottom - 5, 6, bottom); + // Bottom. + g.drawLine(6, bottom, right, bottom); + // Right. + int lastIndex = lastTabInRun(tabCount, currentRun); + if (tabIndex == lastIndex) + { + g.drawLine(right, 0, right, bottom); + } + // Left. + if (isOcean && isSelected) + { + g.drawLine(0, 0, 0, bottom - 5); + + // Paint a connecting line to the tab below for all + // but the first tab in the last run. + if (tabIndex != tabRuns[runCount-1]) + { + g.setColor(darkShadow); + g.drawLine(0, bottom - 5, 0, bottom); + } + } + else + { + if (isOcean && tabIndex == tabPane.getSelectedIndex() + 1) + { + g.setColor(oceanSelectedBorder); + } + if (tabIndex != tabRuns[runCount - 1]) + { + g.drawLine(0, 0, 0, bottom); + } + else + { + g.drawLine(0, 0, 0, bottom - 6); + } + } + + // Paint highlight. + g.setColor(isSelected ? selectHighlight : highlight); + // Slant. + g.drawLine(1, bottom - 6, 6, bottom - 1); + // Left. + g.drawLine(1, 0, 1, bottom - 6); + + int firstIndex = tabRuns[currentRun]; + if (tabIndex == firstIndex && tabIndex != tabRuns[runCount - 1]) + { + if (tabPane.getSelectedIndex() == tabRuns[currentRun + 1]) + { + g.setColor(selectHighlight); + } + else + { + g.setColor(highlight); + } + g.drawLine(1, bottom - 4, 1, bottom); + } + + g.translate(-x, -y); + } + + /** + * Paints the background for a tab. + * + * @param g the graphics device. + * @param tabPlacement the tab placement ({@link #TOP}, {@link #LEFT}, + * {@link #BOTTOM} or {@link #RIGHT}). + * @param tabIndex the index of the tab to draw the border for. + * @param x the x-coordinate for the tab's bounding rectangle. + * @param y the y-coordinate for the tab's bounding rectangle. + * @param w the width for the tab's bounding rectangle. + * @param h the height for the tab's bounding rectangle. + * @param isSelected indicates whether or not the tab is selected. + */ + protected void paintTabBackground(Graphics g, int tabPlacement, + int tabIndex, int x, int y, int w, int h, boolean isSelected) + { + if (isSelected) + g.setColor(selectColor); + else + g.setColor(getUnselectedBackground(tabIndex)); + + switch (tabPlacement) + { + case LEFT: + g.fillRect(x + 5, y + 1, w - 5, h - 1); + g.fillRect(x + 2, y + 4, 3, h - 4); + break; + case BOTTOM: + g.fillRect(x + 2, y, w - 2, h - 3); + g.fillRect(x + 5, y + h - 4, w - 5, 3); + break; + case RIGHT: + g.fillRect(x, y + 1, w - 4, h - 1); + g.fillRect(x + w - 4, y + 5, 3, h - 5); + break; + case TOP: + default: + g.fillRect(x + 4, y + 2, w - 4, h - 2); + g.fillRect(x + 2, y + 5, 2, h - 5); + } + } + + /** + * This method paints the focus rectangle around the selected tab. + * + * @param g The Graphics object to paint with. + * @param tabPlacement The JTabbedPane's tab placement. + * @param rects The array of rectangles keeping track of size and position. + * @param tabIndex The tab index. + * @param iconRect The icon bounds. + * @param textRect The text bounds. + * @param isSelected Whether this tab is selected. + */ + protected void paintFocusIndicator(Graphics g, int tabPlacement, + Rectangle[] rects, int tabIndex, + Rectangle iconRect, Rectangle textRect, + boolean isSelected) + { + if (tabPane.hasFocus() && isSelected) + { + Rectangle rect = rects[tabIndex]; + + g.setColor(focus); + g.translate(rect.x, rect.y); + + switch (tabPlacement) + { + case LEFT: + // Top line + g.drawLine(7, 2, rect.width-2, 2); + + // Right line + g.drawLine(rect.width-1, 2, rect.width-1, rect.height-3); + + // Bottom line + g.drawLine(rect.width-2, rect.height-2, 3, rect.height-2); + + // Left line + g.drawLine(2, rect.height-3, 2, 7); + + // Slant + g.drawLine(2, 6, 6, 2); + break; + case RIGHT: + // Top line + g.drawLine(1, 2, rect.width-8, 2); + + // Slant + g.drawLine(rect.width-7, 2, rect.width-3, 6); + + // Right line + g.drawLine(rect.width-3, 7, rect.width-3, rect.height-3); + + // Bottom line + g.drawLine(rect.width-3, rect.height-2, 2, rect.height-2); + + // Left line + g.drawLine(1, rect.height-2, 1, 2); + break; + case BOTTOM: + // Top line + g.drawLine(2, 1, rect.width-2, 1); + + // Right line + g.drawLine(rect.width-1, 2, rect.width-1, rect.height-3); + + // Bottom line + g.drawLine(7, rect.height-3, rect.width-2, rect.height-3); + + // Slant + g.drawLine(6, rect.height-3, 2, rect.height-7); + + // Left line + g.drawLine(2, rect.height-8, 2, 2); + + break; + case TOP: + default: + // Top line + g.drawLine(6, 2, rect.width-2, 2); + + // Right line + g.drawLine(rect.width-1, 2, rect.width-1, rect.height-3); + + // Bottom line + g.drawLine(3, rect.height-3, rect.width-2, rect.height-3); + + // Left line + g.drawLine(2, rect.height-3, 2, 7); + + // Slant + g.drawLine(2, 6, 6, 2); + + } + + g.translate(-rect.x, -rect.y); + } + } + + /** + * Returns <code>true</code> if the tabs in the specified run should be + * padded to make the run fill the width/height of the {@link JTabbedPane}. + * + * @param tabPlacement the tab placement for the {@link JTabbedPane} (one of + * {@link #TOP}, {@link #BOTTOM}, {@link #LEFT} and {@link #RIGHT}). + * @param run the run index. + * + * @return A boolean. + */ + protected boolean shouldPadTabRun(int tabPlacement, int run) + { + // as far as I can tell, all runs should be padded except the last run + // (which is drawn at the very top for tabPlacement == TOP) + return run < this.runCount - 1; + } + + /** + * Installs the defaults for this UI. This method calls super.installDefaults + * and then loads the Metal specific defaults for TabbedPane. + */ + protected void installDefaults() + { + super.installDefaults(); + selectColor = UIManager.getColor("TabbedPane.selected"); + selectHighlight = UIManager.getColor("TabbedPane.selectHighlight"); + tabAreaBackground = UIManager.getColor("TabbedPane.tabAreaBackground"); + tabsOpaque = UIManager.getBoolean("TabbedPane.tabsOpaque"); + minTabWidth = 0; + } + + /** + * Returns the color for the gap. + * + * @param currentRun - The current run to return the color for + * @param x - The x position of the current run + * @param y - The y position of the current run + * + * @return the color for the gap in the current run. + */ + protected Color getColorForGap(int currentRun, int x, int y) + { + int index = tabForCoordinate(tabPane, x, y); + int selected = tabPane.getSelectedIndex(); + if (selected == index) + return selectColor; + return tabAreaBackground; + } + + /** + * Returns true if the gap should be filled in. + * + * @param currentRun - The current run + * @param tabIndex - The current tab + * @param x - The x position of the tab + * @param y - The y position of the tab + * + * @return true if the gap at the current run should be filled + */ + protected boolean shouldFillGap(int currentRun, int tabIndex, int x, int y) + { + // As far as I can tell, the gap is never filled in. + return false; + } + + /** + * Paints the highlight below the tab, if there is one. + */ + protected void paintHighlightBelowTab() + { + int selected = tabPane.getSelectedIndex(); + int tabPlacement = tabPane.getTabPlacement(); + Rectangle bounds = getTabBounds(tabPane, selected); + + hg.setColor(selectColor); + int x = bounds.x; + int y = bounds.y; + int w = bounds.width; + int h = bounds.height; + + if (tabPlacement == TOP) + hg.fillRect(x, y + h - 2, w, 30); + else if (tabPlacement == LEFT) + hg.fillRect(x + w - 1, y, 20, h); + else if (tabPlacement == BOTTOM) + hg.fillRect(x, y - h + 2, w, 30); + else if (tabPlacement == RIGHT) + hg.fillRect(x - 18, y, 20, h); + else + throw new AssertionError("Unrecognised 'tabPlacement' argument."); + hg = null; + } + + /** + * Returns true if we should rotate the tab runs. + * + * @param tabPlacement - The current tab placement. + * @param selectedRun - The selected run. + * + * @return true if the tab runs should be rotated. + */ + protected boolean shouldRotateTabRuns(int tabPlacement, + int selectedRun) + { + // false because tab runs are not rotated in the MetalLookAndFeel + return false; + } + + protected int calculateMaxTabHeight(int tabPlacement) + { + // FIXME: Why is this overridden? + return super.calculateMaxTabHeight(tabPlacement); + } + + /** + * Returns the amount of overlay among the tabs. In + * the Metal L&F the overlay for LEFT and RIGHT placement + * is half of the maxTabHeight. For TOP and BOTTOM placement + * the tabs do not overlay. + * + * @param tabPlacement the placement + * + * @return the amount of overlay among the tabs + */ + protected int getTabRunOverlay(int tabPlacement) + { + int overlay = 0; + if (tabPlacement == LEFT || tabPlacement == RIGHT) + { + int maxHeight = calculateMaxTabHeight(tabPlacement); + overlay = maxTabHeight / 2; + } + return overlay; + } + + /** + * Paints the upper edge of the content border. + * + * @param g the graphics to use for painting + * @param tabPlacement the tab placement + * @param selectedIndex the index of the selected tab + * @param x the upper left coordinate of the content area + * @param y the upper left coordinate of the content area + * @param w the width of the content area + * @param h the height of the content area + */ + protected void paintContentBorderTopEdge(Graphics g, int tabPlacement, + int selectedIndex, int x, int y, + int w, int h) + { + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + if (isOcean) + { + g.setColor(oceanSelectedBorder); + } + else + { + g.setColor(selectHighlight); + } + + Rectangle rect = selectedIndex < 0 ? null : + getTabBounds(selectedIndex, calcRect); + + // If tabs are not placed on TOP, or if the selected tab is not in the + // run directly above the content or the selected tab is not visible, + // then we draw an unbroken line. + if (tabPlacement != TOP || selectedIndex < 0 + || rect.y + rect.height + 1 < y || rect.x < x || rect.x > x + w) + { + g.drawLine(x, y, x + w - 2, y); + if (isOcean && tabPlacement == TOP) + { + g.setColor(MetalLookAndFeel.getWhite()); + g.drawLine(x, y + 1, x + w - 2, y + 1); + } + } + else + { + boolean isLast = isLastTabInRun(selectedIndex); + if (isLast) + { + g.drawLine(x, y, rect.x + 1, y); + } + else + { + g.drawLine(x, y, rect.x, y); + } + + int right = x + w - 1; + if (rect.x + rect.width < right - 1) + { + if (isLast) + { + g.drawLine(rect.x + rect.width - 1, y, right - 1, y); + } + else + { + g.drawLine(rect.x + rect.width, y, right - 1, y); + } + } + else + { + g.setColor(shadow); + g.drawLine(x + w - 2, y, x + w - 2, y); + } + + // When in OceanTheme, draw another white line. + if (isOcean) + { + g.setColor(MetalLookAndFeel.getWhite()); + if (isLast) + { + g.drawLine(x, y + 1, rect.x + 1, y + 1); + } + else + { + g.drawLine(x, y + 1, rect.x, y + 1); + } + + if (rect.x + rect.width < right - 1) + { + if (isLast) + { + g.drawLine(rect.x + rect.width - 1, y + 1, right - 1, + y + 1); + } + else + { + g.drawLine(rect.x + rect.width, y + 1, right - 1, y + 1); + } + } + else + { + g.setColor(shadow); + g.drawLine(x + w - 2, y + 1, x + w - 2, y + 1); + } + } + } + } + + /** + * Paints the lower edge of the content border. + * + * @param g the graphics to use for painting + * @param tabPlacement the tab placement + * @param selectedIndex the index of the selected tab + * @param x the upper left coordinate of the content area + * @param y the upper left coordinate of the content area + * @param w the width of the content area + * @param h the height of the content area + */ + protected void paintContentBorderBottomEdge(Graphics g, int tabPlacement, + int selectedIndex, int x, int y, + int w, int h) + { + g.setColor(darkShadow); + + // If tabs are not placed on BOTTOM, or if the selected tab is not in the + // run directly below the content or the selected tab is not visible, + // then we draw an unbroken line. + Rectangle rect = selectedIndex < 0 ? null : + getTabBounds(selectedIndex, calcRect); + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + if (tabPlacement != BOTTOM || selectedIndex < 0 || rect.y - 1 > h + || rect.x < x || rect.x > x + w) + { + if (isOcean && tabPlacement == BOTTOM) + { + g.setColor(oceanSelectedBorder); + } + g.drawLine(x, y + h - 1, x + w - 1, y + h - 1); + } + else + { + boolean isLast = isLastTabInRun(selectedIndex); + if (isOcean) + { + g.setColor(oceanSelectedBorder); + } + + int bottom = y + h - 1; + int right = x + w - 1; + if (isLast) + { + g.drawLine(x, bottom, rect.x, bottom); + } + else + { + g.drawLine(x, bottom, rect.x - 1, bottom); + } + + if (rect.x + rect.width < x + w - 2) + { + if (isLast) + { + g.drawLine(rect.x + rect.width - 1, bottom, right, bottom); + } + else + { + g.drawLine(rect.x + rect.width, bottom, right, bottom); + } + } + } + } + + /** + * Paints the left edge of the content border. + * + * @param g the graphics to use for painting + * @param tabPlacement the tab placement + * @param selectedIndex the index of the selected tab + * @param x the upper left coordinate of the content area + * @param y the upper left coordinate of the content area + * @param w the width of the content area + * @param h the height of the content area + */ + protected void paintContentBorderLeftEdge(Graphics g, int tabPlacement, + int selectedIndex, int x, int y, + int w, int h) + { + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + Rectangle rect = selectedIndex < 0 ? null : + getTabBounds(selectedIndex, calcRect); + + if (isOcean) + { + g.setColor(oceanSelectedBorder); + } + else + { + g.setColor(selectHighlight); + } + + // If tabs are not placed on LEFT, or if the selected tab is not in the + // run directly left to the content or the selected tab is not visible, + // then we draw an unbroken line. + if (tabPlacement != LEFT || selectedIndex < 0 + || rect.x + rect.width + 1 < x || rect.y < y || rect.y > y + h) + { + g.drawLine(x, y + 1, x, y + h - 2); + if (isOcean && tabPlacement == LEFT) + { + g.setColor(MetalLookAndFeel.getWhite()); + g.drawLine(x, y + 1, x, y + h - 2); + } + } + else + { + g.drawLine(x, y, x, rect.y + 1); + if (rect.y + rect.height < y + h - 2) + { + g.drawLine(x, rect.y + rect.height + 1, x, y + h + 2); + } + if (isOcean) + { + g.setColor(MetalLookAndFeel.getWhite()); + g.drawLine(x + 1, y + 1, x + 1, rect.y + 1); + if (rect.y + rect.height < y + h - 2) + { + g.drawLine(x + 1, rect.y + rect.height + 1, x + 1, y + h + 2); + } + } + } + + } + + /** + * Paints the right edge of the content border. + * + * @param g the graphics to use for painting + * @param tabPlacement the tab placement + * @param selectedIndex the index of the selected tab + * @param x the upper left coordinate of the content area + * @param y the upper left coordinate of the content area + * @param w the width of the content area + * @param h the height of the content area + */ + protected void paintContentBorderRightEdge(Graphics g, int tabPlacement, + int selectedIndex, int x, int y, + int w, int h) + { + g.setColor(darkShadow); + Rectangle rect = selectedIndex < 0 ? null : + getTabBounds(selectedIndex, calcRect); + boolean isOcean = MetalLookAndFeel.getCurrentTheme() instanceof OceanTheme; + Color oceanSelectedBorder = + UIManager.getColor("TabbedPane.borderHightlightColor"); + + // If tabs are not placed on RIGHT, or if the selected tab is not in the + // run directly right to the content or the selected tab is not visible, + // then we draw an unbroken line. + if (tabPlacement != RIGHT || selectedIndex < 0 || rect.x - 1 > w + || rect.y < y || rect.y > y + h) + { + if (isOcean && tabPlacement == RIGHT) + { + g.setColor(oceanSelectedBorder); + } + g.drawLine(x + w - 1, y, x + w - 1, y + h - 1); + } + else + { + if (isOcean) + { + g.setColor(oceanSelectedBorder); + } + g.drawLine(x + w - 1, y, x + w - 1, rect.y); + + if (rect.y + rect.height < y + h - 2) + { + g.drawLine(x + w - 1, rect.y + rect.height, x + w - 1, y + h - 2); + } + } + } + + /** + * Determines if the specified tab is the last tab in its tab run. + * + * @param tabIndex the index of the tab + * + * @return if the specified tab is the last tab in its tab run + */ + private boolean isLastTabInRun(int tabIndex) + { + int count = tabPane.getTabCount(); + int run = getRunForTab(count, tabIndex); + int lastIndex = lastTabInRun(count, run); + return tabIndex == lastIndex; + } + + /** + * Returns the background for an unselected tab. This first asks the + * JTabbedPane for the background at the specified tab index, if this + * is an UIResource (that means, it is inherited from the JTabbedPane) + * and the TabbedPane.unselectedBackground UI property is not null, + * this returns the value of the TabbedPane.unselectedBackground property, + * otherwise the value returned by the JTabbedPane. + * + * @param tabIndex the index of the tab for which we query the background + * + * @return the background for an unselected tab + */ + private Color getUnselectedBackground(int tabIndex) + { + Color bg = tabPane.getBackgroundAt(tabIndex); + Color unselectedBackground = + UIManager.getColor("TabbedPane.unselectedBackground"); + if (bg instanceof UIResource && unselectedBackground != null) + bg = unselectedBackground; + return bg; + } + + protected int getTabLabelShiftX(int tabPlacement, + int index, + boolean isSelected) + { + return 0; + } + + protected int getTabLabelShiftY(int tabPlacement, + int index, + boolean isSelected) + { + return 0; + } + +} |