platform/platform-api/src/com/intellij/ui/tabs/impl/TabLabel.java - platform/tools/idea - Git at Google

 /*
  * Copyright 2000-2014 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 package com.intellij.ui.tabs.impl;

 import com.intellij.ide.DataManager;
 import com.intellij.ide.ui.UISettings;
 import com.intellij.openapi.actionSystem.ActionGroup;
 import com.intellij.openapi.actionSystem.ActionPlaces;
 import com.intellij.openapi.actionSystem.DefaultActionGroup;
 import com.intellij.openapi.util.Pass;
 import com.intellij.openapi.util.SystemInfo;
 import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.ui.*;
 import com.intellij.ui.components.panels.Wrapper;
 import com.intellij.ui.tabs.JBTabsPosition;
 import com.intellij.ui.tabs.TabInfo;
 import com.intellij.ui.tabs.TabsUtil;
 import com.intellij.ui.tabs.UiDecorator;
 import com.intellij.ui.tabs.impl.table.TableLayout;
 import com.intellij.util.PairConsumer;
 import com.intellij.util.ui.Centerizer;
 import com.intellij.util.ui.UIUtil;
 import org.jetbrains.annotations.Nullable;

 import javax.swing.*;
 import javax.swing.border.EmptyBorder;
 import java.awt.*;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.image.BufferedImage;

 public class TabLabel extends JPanel {
   protected final SimpleColoredComponent myLabel;

   private final LayeredIcon myIcon;
   private Icon myOverlayedIcon;

   private final TabInfo myInfo;
   protected ActionPanel myActionPanel;
   private boolean myCentered;

   private final Wrapper myLabelPlaceholder = new Wrapper(false);
   private final JBTabsImpl myTabs;

   private BufferedImage myInactiveStateImage;
   private Rectangle myLastPaintedInactiveImageBounds;

   public TabLabel(JBTabsImpl tabs, final TabInfo info) {
     super(false);

     myTabs = tabs;
     myInfo = info;

     myLabel = createLabel(tabs);

     setOpaque(false);
     setLayout(new BorderLayout());

     myLabelPlaceholder.setOpaque(false);
     add(myLabelPlaceholder, BorderLayout.CENTER);

     setAlignmentToCenter(true);

     myIcon = new LayeredIcon(2);

     addMouseListener(new MouseAdapter() {
       public void mousePressed(final MouseEvent e) {
         if (UIUtil.isCloseClick(e, MouseEvent.MOUSE_PRESSED)) return;
         if (JBTabsImpl.isSelectionClick(e, false) && myInfo.isEnabled()) {
           final TabInfo selectedInfo = myTabs.getSelectedInfo();
           if (selectedInfo != myInfo) {
             myInfo.setPreviousSelection(selectedInfo);
           }
           Component c = SwingUtilities.getDeepestComponentAt(e.getComponent(), e.getX(), e.getY());
           if (c instanceof InplaceButton) return;
           myTabs.select(info, true);
         }
         else {
           handlePopup(e);
         }
       }

       public void mouseClicked(final MouseEvent e) {
         handlePopup(e);
       }

       public void mouseReleased(final MouseEvent e) {
         myInfo.setPreviousSelection(null);
         handlePopup(e);
       }
     });
   }

   private SimpleColoredComponent createLabel(JBTabsImpl tabs) {
     SimpleColoredComponent label = new SimpleColoredComponent() {
       @Override
       protected boolean shouldDrawMacShadow() {
         return SystemInfo.isMac || UIUtil.isUnderDarcula();
       }

       @Override
       protected boolean shouldDrawDimmed() {
         return myTabs.getSelectedInfo() != myInfo || myTabs.useBoldLabels();
       }

       @Override
       public Font getFont() {
         if (isFontSet() || !myTabs.useSmallLabels()) {
           return super.getFont();
         }
         return UIUtil.getLabelFont(UIUtil.FontSize.SMALL);
       }
     };
     label.setOpaque(false);
     label.setBorder(null);
     label.setIconTextGap(tabs.isEditorTabs() ? 2 : new JLabel().getIconTextGap());
     label.setIconOpaque(false);
     label.setIpad(new Insets(0, 0, 0, 0));

     return label;
   }

   @Override
   public Insets getInsets() {
     Insets insets = super.getInsets();
     if (myTabs.isEditorTabs()) {
       if (UISettings.getInstance().SHOW_CLOSE_BUTTON) {
         return new Insets(insets.top, insets.left, insets.bottom, 3);
       }
     }

     return insets;
   }

   public void setAlignmentToCenter(boolean toCenter) {
     if (myCentered == toCenter && getLabelComponent().getParent() != null) return;

     setPlaceholderContent(toCenter, getLabelComponent());
   }

   protected void setPlaceholderContent(boolean toCenter, JComponent component) {
     myLabelPlaceholder.removeAll();

     if (toCenter) {
       final Centerizer center = new Centerizer(component);
       myLabelPlaceholder.setContent(center);
     }
     else {
       myLabelPlaceholder.setContent(component);
     }

     myCentered = toCenter;
   }


   public void paintOffscreen(Graphics g) {
     synchronized (getTreeLock()) {
       validateTree();
     }
     doPaint(g);
   }

   public void paint(final Graphics g) {
     if (myTabs.isDropTarget(myInfo)) return;

     if (myTabs.getSelectedInfo() != myInfo) {
       doPaint(g);
     }
   }

   public void paintImage(Graphics g) {
     final Rectangle b = getBounds();
     final Graphics lG = g.create(b.x, b.y, b.width, b.height);
     try {
       lG.setColor(Color.red);
       doPaint(lG);
     }
     finally {
       lG.dispose();
     }
   }

   public void doTranslate(PairConsumer<Integer, Integer> consumer) {
     final JBTabsPosition pos = myTabs.getTabsPosition();

     int dX = 0;
     int dXs = 0;
     int dY = 0;
     int dYs = 0;
     int selected = getSelectedOffset();
     int plain = getNonSelectedOffset();

     switch (pos) {
       case bottom:
         dY = -plain;
         dYs = -selected;
         break;
       case left:
         dX = plain;
         dXs = selected;
         break;
       case right:
         dX = -plain;
         dXs = -selected;
         break;
       case top:
         dY = plain;
         dYs = selected;
         break;
     }

     if (!myTabs.isDropTarget(myInfo)) {
       if (myTabs.getSelectedInfo() != myInfo) {
         consumer.consume(dX, dY);
       }
       else {
         consumer.consume(dXs, dYs);
       }
     }
   }

   private void doPaint(final Graphics g) {
     doTranslate(new PairConsumer<Integer, Integer>() {
       @Override
       public void consume(Integer x, Integer y) {
         g.translate(x, y);
       }
     });

     super.paint(g);

     doTranslate(new PairConsumer<Integer, Integer>() {
       @Override
       public void consume(Integer x, Integer y) {
         g.translate(-x, -y);
       }
     });
   }

   protected int getNonSelectedOffset() {
     if (myTabs.isEditorTabs() && (myTabs.isSingleRow() || ((TableLayout)myTabs.getEffectiveLayout()).isLastRow(getInfo()))) {
       return -TabsUtil.ACTIVE_TAB_UNDERLINE_HEIGHT / 2 + 1;
     }
     return 1;
   }

   protected int getSelectedOffset() {
     return getNonSelectedOffset();
   }

   @Override
   public Dimension getPreferredSize() {
     final Dimension size = super.getPreferredSize();
     size.height = TabsUtil.getTabsHeight();
     if (myActionPanel != null && !myActionPanel.isVisible()) {
       final Dimension actionPanelSize = myActionPanel.getPreferredSize();
       size.width += actionPanelSize.width;
     }

     final JBTabsPosition pos = myTabs.getTabsPosition();
     switch (pos) {
       case top:
       case bottom:
         if (myTabs.hasUnderline()) size.height += TabsUtil.ACTIVE_TAB_UNDERLINE_HEIGHT - 1;
         break;
       case left:
       case right:
         size.width += getSelectedOffset();
         break;
     }

     return size;
   }

   private void handlePopup(final MouseEvent e) {
     if (e.getClickCount() != 1 || !e.isPopupTrigger()) return;

     if (e.getX() < 0 || e.getX() >= e.getComponent().getWidth() || e.getY() < 0 || e.getY() >= e.getComponent().getHeight()) return;

     String place = myTabs.getPopupPlace();
     place = place != null ? place : ActionPlaces.UNKNOWN;
     myTabs.myPopupInfo = myInfo;

     final DefaultActionGroup toShow = new DefaultActionGroup();
     if (myTabs.getPopupGroup() != null) {
       toShow.addAll(myTabs.getPopupGroup());
       toShow.addSeparator();
     }

     JBTabsImpl tabs =
       JBTabsImpl.NAVIGATION_ACTIONS_KEY.getData(DataManager.getInstance().getDataContext(e.getComponent(), e.getX(), e.getY()));
     if (tabs == myTabs && myTabs.myAddNavigationGroup) {
       toShow.addAll(myTabs.myNavigationActions);
     }

     if (toShow.getChildrenCount() == 0) return;

     myTabs.myActivePopup = myTabs.myActionManager.createActionPopupMenu(place, toShow).getComponent();
     myTabs.myActivePopup.addPopupMenuListener(myTabs.myPopupListener);

     myTabs.myActivePopup.addPopupMenuListener(myTabs);
     myTabs.myActivePopup.show(e.getComponent(), e.getX(), e.getY());
   }


   public void setText(final SimpleColoredText text) {
     myInfo.setTitleIsShortened(false);
     if (text != null && text.getTexts().size() == 1 && Boolean.TRUE == getClientProperty(JBEditorTabs.TABS_SHORTEN_TITLE_IF_NEED)) {
       String title = text.getTexts().get(0);
       if (title.length() > UISettings.getInstance().EDITOR_TAB_TITLE_LIMIT) {
         SimpleTextAttributes attributes = text.getAttributes().get(0);
         text.clear();
         text.append(StringUtil.getShortened(title, UISettings.getInstance().EDITOR_TAB_TITLE_LIMIT), attributes);
         myInfo.setTitleIsShortened(true);
       }
     }
     myLabel.change(new Runnable() {
       public void run() {
         myLabel.clear();
         myLabel.setIcon(hasIcons() ? myIcon : null);

         if (text != null) {
           SimpleColoredText derive = myTabs.useBoldLabels() ? text.derive(SimpleTextAttributes.REGULAR_BOLD_ATTRIBUTES, true) : text;
           derive.appendToComponent(myLabel);
         }
       }
     }, false);

     invalidateIfNeeded();
   }


   private void invalidateIfNeeded() {
     if (getLabelComponent().getRootPane() == null) return;

     Dimension d = getLabelComponent().getSize();
     Dimension pref = getLabelComponent().getPreferredSize();
     if (d != null && d.equals(pref)) {
       return;
     }

     setInactiveStateImage(null);

     getLabelComponent().invalidate();

     if (myActionPanel != null) {
       myActionPanel.invalidate();
     }

     myTabs.revalidateAndRepaint(false);
   }

   public void setIcon(final Icon icon) {
     setIcon(icon, 0);
   }

   private boolean hasIcons() {
     LayeredIcon layeredIcon = getLayeredIcon();
     boolean hasIcons = false;
     Icon[] layers = layeredIcon.getAllLayers();
     for (Icon layer1 : layers) {
       if (layer1 != null) {
         hasIcons = true;
         break;
       }
     }

     return hasIcons;
   }

   private void setIcon(@Nullable final Icon icon, int layer) {
     LayeredIcon layeredIcon = getLayeredIcon();
     layeredIcon.setIcon(icon, layer);
     if (hasIcons()) {
       myLabel.setIcon(layeredIcon);
     }
     else {
       myLabel.setIcon(null);
     }

     invalidateIfNeeded();
   }

   private LayeredIcon getLayeredIcon() {
     return myIcon;
   }

   public TabInfo getInfo() {
     return myInfo;
   }

   public void apply(UiDecorator.UiDecoration decoration) {
     if (decoration.getLabelFont() != null) {
       setFont(decoration.getLabelFont());
       getLabelComponent().setFont(decoration.getLabelFont());
     }

     Insets insets = decoration.getLabelInsets();
     if (insets != null) {
       Insets current = JBTabsImpl.ourDefaultDecorator.getDecoration().getLabelInsets();
       if (current != null) {
         setBorder(
           new EmptyBorder(getValue(current.top, insets.top), getValue(current.left, insets.left), getValue(current.bottom, insets.bottom),
                           getValue(current.right, insets.right)));
       }
     }
   }

   private static int getValue(int currentValue, int newValue) {
     return newValue != -1 ? newValue : currentValue;
   }

   public void setTabActions(ActionGroup group) {
     removeOldActionPanel();

     if (group == null) return;

     myActionPanel = new ActionPanel(myTabs, myInfo, new Pass<MouseEvent>() {
       public void pass(final MouseEvent event) {
         final MouseEvent me = SwingUtilities.convertMouseEvent(event.getComponent(), event, TabLabel.this);
         processMouseEvent(me);
       }
     });

     toggleShowActions(false);

     add(myActionPanel, BorderLayout.EAST);

     myTabs.revalidateAndRepaint(false);
   }


   private void removeOldActionPanel() {
     if (myActionPanel != null) {
       myActionPanel.getParent().remove(myActionPanel);
       myActionPanel = null;
     }
   }

   public boolean updateTabActions() {
     return myActionPanel != null && myActionPanel.update();
   }

   private void setAttractionIcon(@Nullable Icon icon) {
     if (myIcon.getIcon(0) == null) {
       setIcon(null, 1);
       myOverlayedIcon = icon;
     }
     else {
       setIcon(icon, 1);
       myOverlayedIcon = null;
     }
   }

   public boolean repaintAttraction() {
     if (!myTabs.myAttractions.contains(myInfo)) {
       if (getLayeredIcon().isLayerEnabled(1)) {
         getLayeredIcon().setLayerEnabled(1, false);
         setAttractionIcon(null);
         invalidateIfNeeded();
         return true;
       }
       return false;
     }

     boolean needsUpdate = false;

     if (getLayeredIcon().getIcon(1) != myInfo.getAlertIcon()) {
       setAttractionIcon(myInfo.getAlertIcon());
       needsUpdate = true;
     }

     int maxInitialBlinkCount = 5;
     int maxRefireBlinkCount = maxInitialBlinkCount + 2;
     if (myInfo.getBlinkCount() < maxInitialBlinkCount && myInfo.isAlertRequested()) {
       getLayeredIcon().setLayerEnabled(1, !getLayeredIcon().isLayerEnabled(1));
       if (myInfo.getBlinkCount() == 0) {
         needsUpdate = true;
       }
       myInfo.setBlinkCount(myInfo.getBlinkCount() + 1);

       if (myInfo.getBlinkCount() == maxInitialBlinkCount) {
         myInfo.resetAlertRequest();
       }

       repaint();
     }
     else {
       if (myInfo.getBlinkCount() < maxRefireBlinkCount && myInfo.isAlertRequested()) {
         getLayeredIcon().setLayerEnabled(1, !getLayeredIcon().isLayerEnabled(1));
         myInfo.setBlinkCount(myInfo.getBlinkCount() + 1);

         if (myInfo.getBlinkCount() == maxRefireBlinkCount) {
           myInfo.setBlinkCount(maxInitialBlinkCount);
           myInfo.resetAlertRequest();
         }

         repaint();
       }
       else {
         needsUpdate = !getLayeredIcon().isLayerEnabled(1);
         getLayeredIcon().setLayerEnabled(1, true);
       }
     }

     invalidateIfNeeded();

     return needsUpdate;
   }

   protected void paintChildren(final Graphics g) {
     super.paintChildren(g);

     if (myOverlayedIcon == null || getLabelComponent().getParent() == null) return;

     final Rectangle textBounds = SwingUtilities.convertRectangle(getLabelComponent().getParent(), getLabelComponent().getBounds(), this);
     if (getLayeredIcon().isLayerEnabled(1)) {

       final int top = (getSize().height - myOverlayedIcon.getIconHeight()) / 2;

       myOverlayedIcon.paintIcon(this, g, textBounds.x - myOverlayedIcon.getIconWidth() / 2, top);
     }
   }

   public void setTabActionsAutoHide(final boolean autoHide) {
     if (myActionPanel == null || myActionPanel.isAutoHide() == autoHide) {
       return;
     }

     myActionPanel.setAutoHide(autoHide);
   }

   public void toggleShowActions(boolean show) {
     if (myActionPanel != null) {
       myActionPanel.toggleShowActions(show);
     }
   }

   public void setActionPanelVisible(boolean visible) {
     if (myActionPanel != null) {
       myActionPanel.setVisible(visible);
     }
   }

   @Override
   public String toString() {
     return myInfo.getText();
   }

   public void setTabEnabled(boolean enabled) {
     getLabelComponent().setEnabled(enabled);
   }


   @Nullable
   public BufferedImage getInactiveStateImage(Rectangle effectiveBounds) {
     BufferedImage img = null;
     if (myLastPaintedInactiveImageBounds != null && myLastPaintedInactiveImageBounds.getSize().equals(effectiveBounds.getSize())) {
       img = myInactiveStateImage;
     }
     else {
       setInactiveStateImage(null);
     }
     myLastPaintedInactiveImageBounds = effectiveBounds;
     return img;
   }

   public void setInactiveStateImage(@Nullable BufferedImage img) {
     if (myInactiveStateImage != null && img != myInactiveStateImage) {
       myInactiveStateImage.flush();
     }
     myInactiveStateImage = img;
   }

   public JComponent getLabelComponent() {
     return myLabel;
   }
 }
	/*
	* Copyright 2000-2014 JetBrains s.r.o.
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	package com.intellij.ui.tabs.impl;

	import com.intellij.ide.DataManager;
	import com.intellij.ide.ui.UISettings;
	import com.intellij.openapi.actionSystem.ActionGroup;
	import com.intellij.openapi.actionSystem.ActionPlaces;
	import com.intellij.openapi.actionSystem.DefaultActionGroup;
	import com.intellij.openapi.util.Pass;
	import com.intellij.openapi.util.SystemInfo;
	import com.intellij.openapi.util.text.StringUtil;
	import com.intellij.ui.*;
	import com.intellij.ui.components.panels.Wrapper;
	import com.intellij.ui.tabs.JBTabsPosition;
	import com.intellij.ui.tabs.TabInfo;
	import com.intellij.ui.tabs.TabsUtil;
	import com.intellij.ui.tabs.UiDecorator;
	import com.intellij.ui.tabs.impl.table.TableLayout;
	import com.intellij.util.PairConsumer;
	import com.intellij.util.ui.Centerizer;
	import com.intellij.util.ui.UIUtil;
	import org.jetbrains.annotations.Nullable;

	import javax.swing.*;
	import javax.swing.border.EmptyBorder;
	import java.awt.*;
	import java.awt.event.MouseAdapter;
	import java.awt.event.MouseEvent;
	import java.awt.image.BufferedImage;

	public class TabLabel extends JPanel {
	protected final SimpleColoredComponent myLabel;

	private final LayeredIcon myIcon;
	private Icon myOverlayedIcon;

	private final TabInfo myInfo;
	protected ActionPanel myActionPanel;
	private boolean myCentered;

	private final Wrapper myLabelPlaceholder = new Wrapper(false);
	private final JBTabsImpl myTabs;

	private BufferedImage myInactiveStateImage;
	private Rectangle myLastPaintedInactiveImageBounds;

	public TabLabel(JBTabsImpl tabs, final TabInfo info) {
	super(false);

	myTabs = tabs;
	myInfo = info;

	myLabel = createLabel(tabs);

	setOpaque(false);
	setLayout(new BorderLayout());

	myLabelPlaceholder.setOpaque(false);
	add(myLabelPlaceholder, BorderLayout.CENTER);

	setAlignmentToCenter(true);

	myIcon = new LayeredIcon(2);

	addMouseListener(new MouseAdapter() {
	public void mousePressed(final MouseEvent e) {
	if (UIUtil.isCloseClick(e, MouseEvent.MOUSE_PRESSED)) return;
	if (JBTabsImpl.isSelectionClick(e, false) && myInfo.isEnabled()) {
	final TabInfo selectedInfo = myTabs.getSelectedInfo();
	if (selectedInfo != myInfo) {
	myInfo.setPreviousSelection(selectedInfo);
	}
	Component c = SwingUtilities.getDeepestComponentAt(e.getComponent(), e.getX(), e.getY());
	if (c instanceof InplaceButton) return;
	myTabs.select(info, true);
	}
	else {
	handlePopup(e);
	}
	}

	public void mouseClicked(final MouseEvent e) {
	handlePopup(e);
	}

	public void mouseReleased(final MouseEvent e) {
	myInfo.setPreviousSelection(null);
	handlePopup(e);
	}
	});
	}

	private SimpleColoredComponent createLabel(JBTabsImpl tabs) {
	SimpleColoredComponent label = new SimpleColoredComponent() {
	@Override
	protected boolean shouldDrawMacShadow() {
	return SystemInfo.isMac \|\| UIUtil.isUnderDarcula();
	}

	@Override
	protected boolean shouldDrawDimmed() {
	return myTabs.getSelectedInfo() != myInfo \|\| myTabs.useBoldLabels();
	}

	@Override
	public Font getFont() {
	if (isFontSet() \|\| !myTabs.useSmallLabels()) {
	return super.getFont();
	}
	return UIUtil.getLabelFont(UIUtil.FontSize.SMALL);
	}
	};
	label.setOpaque(false);
	label.setBorder(null);
	label.setIconTextGap(tabs.isEditorTabs() ? 2 : new JLabel().getIconTextGap());
	label.setIconOpaque(false);
	label.setIpad(new Insets(0, 0, 0, 0));

	return label;
	}

	@Override
	public Insets getInsets() {
	Insets insets = super.getInsets();
	if (myTabs.isEditorTabs()) {
	if (UISettings.getInstance().SHOW_CLOSE_BUTTON) {
	return new Insets(insets.top, insets.left, insets.bottom, 3);
	}
	}

	return insets;
	}

	public void setAlignmentToCenter(boolean toCenter) {
	if (myCentered == toCenter && getLabelComponent().getParent() != null) return;

	setPlaceholderContent(toCenter, getLabelComponent());
	}

	protected void setPlaceholderContent(boolean toCenter, JComponent component) {
	myLabelPlaceholder.removeAll();

	if (toCenter) {
	final Centerizer center = new Centerizer(component);
	myLabelPlaceholder.setContent(center);
	}
	else {
	myLabelPlaceholder.setContent(component);
	}

	myCentered = toCenter;
	}



	public void paintOffscreen(Graphics g) {
	synchronized (getTreeLock()) {
	validateTree();
	}
	doPaint(g);
	}

	public void paint(final Graphics g) {
	if (myTabs.isDropTarget(myInfo)) return;

	if (myTabs.getSelectedInfo() != myInfo) {
	doPaint(g);
	}
	}

	public void paintImage(Graphics g) {
	final Rectangle b = getBounds();
	final Graphics lG = g.create(b.x, b.y, b.width, b.height);
	try {
	lG.setColor(Color.red);
	doPaint(lG);
	}
	finally {
	lG.dispose();
	}
	}

	public void doTranslate(PairConsumer<Integer, Integer> consumer) {
	final JBTabsPosition pos = myTabs.getTabsPosition();

	int dX = 0;
	int dXs = 0;
	int dY = 0;
	int dYs = 0;
	int selected = getSelectedOffset();
	int plain = getNonSelectedOffset();

	switch (pos) {
	case bottom:
	dY = -plain;
	dYs = -selected;
	break;
	case left:
	dX = plain;
	dXs = selected;
	break;
	case right:
	dX = -plain;
	dXs = -selected;
	break;
	case top:
	dY = plain;
	dYs = selected;
	break;
	}

	if (!myTabs.isDropTarget(myInfo)) {
	if (myTabs.getSelectedInfo() != myInfo) {
	consumer.consume(dX, dY);
	}
	else {
	consumer.consume(dXs, dYs);
	}
	}
	}

	private void doPaint(final Graphics g) {
	doTranslate(new PairConsumer<Integer, Integer>() {
	@Override
	public void consume(Integer x, Integer y) {
	g.translate(x, y);
	}
	});

	super.paint(g);

	doTranslate(new PairConsumer<Integer, Integer>() {
	@Override
	public void consume(Integer x, Integer y) {
	g.translate(-x, -y);
	}
	});
	}

	protected int getNonSelectedOffset() {
	if (myTabs.isEditorTabs() && (myTabs.isSingleRow() \|\| ((TableLayout)myTabs.getEffectiveLayout()).isLastRow(getInfo()))) {
	return -TabsUtil.ACTIVE_TAB_UNDERLINE_HEIGHT / 2 + 1;
	}
	return 1;
	}

	protected int getSelectedOffset() {
	return getNonSelectedOffset();
	}

	@Override
	public Dimension getPreferredSize() {
	final Dimension size = super.getPreferredSize();
	size.height = TabsUtil.getTabsHeight();
	if (myActionPanel != null && !myActionPanel.isVisible()) {
	final Dimension actionPanelSize = myActionPanel.getPreferredSize();
	size.width += actionPanelSize.width;
	}

	final JBTabsPosition pos = myTabs.getTabsPosition();
	switch (pos) {
	case top:
	case bottom:
	if (myTabs.hasUnderline()) size.height += TabsUtil.ACTIVE_TAB_UNDERLINE_HEIGHT - 1;
	break;
	case left:
	case right:
	size.width += getSelectedOffset();
	break;
	}

	return size;
	}

	private void handlePopup(final MouseEvent e) {
	if (e.getClickCount() != 1 \|\| !e.isPopupTrigger()) return;

	if (e.getX() < 0 \|\| e.getX() >= e.getComponent().getWidth() \|\| e.getY() < 0 \|\| e.getY() >= e.getComponent().getHeight()) return;

	String place = myTabs.getPopupPlace();
	place = place != null ? place : ActionPlaces.UNKNOWN;
	myTabs.myPopupInfo = myInfo;

	final DefaultActionGroup toShow = new DefaultActionGroup();
	if (myTabs.getPopupGroup() != null) {
	toShow.addAll(myTabs.getPopupGroup());
	toShow.addSeparator();
	}

	JBTabsImpl tabs =
	JBTabsImpl.NAVIGATION_ACTIONS_KEY.getData(DataManager.getInstance().getDataContext(e.getComponent(), e.getX(), e.getY()));
	if (tabs == myTabs && myTabs.myAddNavigationGroup) {
	toShow.addAll(myTabs.myNavigationActions);
	}

	if (toShow.getChildrenCount() == 0) return;

	myTabs.myActivePopup = myTabs.myActionManager.createActionPopupMenu(place, toShow).getComponent();
	myTabs.myActivePopup.addPopupMenuListener(myTabs.myPopupListener);

	myTabs.myActivePopup.addPopupMenuListener(myTabs);
	myTabs.myActivePopup.show(e.getComponent(), e.getX(), e.getY());
	}


	public void setText(final SimpleColoredText text) {
	myInfo.setTitleIsShortened(false);
	if (text != null && text.getTexts().size() == 1 && Boolean.TRUE == getClientProperty(JBEditorTabs.TABS_SHORTEN_TITLE_IF_NEED)) {
	String title = text.getTexts().get(0);
	if (title.length() > UISettings.getInstance().EDITOR_TAB_TITLE_LIMIT) {
	SimpleTextAttributes attributes = text.getAttributes().get(0);
	text.clear();
	text.append(StringUtil.getShortened(title, UISettings.getInstance().EDITOR_TAB_TITLE_LIMIT), attributes);
	myInfo.setTitleIsShortened(true);
	}
	}
	myLabel.change(new Runnable() {
	public void run() {
	myLabel.clear();
	myLabel.setIcon(hasIcons() ? myIcon : null);

	if (text != null) {
	SimpleColoredText derive = myTabs.useBoldLabels() ? text.derive(SimpleTextAttributes.REGULAR_BOLD_ATTRIBUTES, true) : text;
	derive.appendToComponent(myLabel);
	}
	}
	}, false);

	invalidateIfNeeded();
	}


	private void invalidateIfNeeded() {
	if (getLabelComponent().getRootPane() == null) return;

	Dimension d = getLabelComponent().getSize();
	Dimension pref = getLabelComponent().getPreferredSize();
	if (d != null && d.equals(pref)) {
	return;
	}

	setInactiveStateImage(null);

	getLabelComponent().invalidate();

	if (myActionPanel != null) {
	myActionPanel.invalidate();
	}

	myTabs.revalidateAndRepaint(false);
	}

	public void setIcon(final Icon icon) {
	setIcon(icon, 0);
	}

	private boolean hasIcons() {
	LayeredIcon layeredIcon = getLayeredIcon();
	boolean hasIcons = false;
	Icon[] layers = layeredIcon.getAllLayers();
	for (Icon layer1 : layers) {
	if (layer1 != null) {
	hasIcons = true;
	break;
	}
	}

	return hasIcons;
	}

	private void setIcon(@Nullable final Icon icon, int layer) {
	LayeredIcon layeredIcon = getLayeredIcon();
	layeredIcon.setIcon(icon, layer);
	if (hasIcons()) {
	myLabel.setIcon(layeredIcon);
	}
	else {
	myLabel.setIcon(null);
	}

	invalidateIfNeeded();
	}

	private LayeredIcon getLayeredIcon() {
	return myIcon;
	}

	public TabInfo getInfo() {
	return myInfo;
	}

	public void apply(UiDecorator.UiDecoration decoration) {
	if (decoration.getLabelFont() != null) {
	setFont(decoration.getLabelFont());
	getLabelComponent().setFont(decoration.getLabelFont());
	}

	Insets insets = decoration.getLabelInsets();
	if (insets != null) {
	Insets current = JBTabsImpl.ourDefaultDecorator.getDecoration().getLabelInsets();
	if (current != null) {
	setBorder(
	new EmptyBorder(getValue(current.top, insets.top), getValue(current.left, insets.left), getValue(current.bottom, insets.bottom),
	getValue(current.right, insets.right)));
	}
	}
	}

	private static int getValue(int currentValue, int newValue) {
	return newValue != -1 ? newValue : currentValue;
	}

	public void setTabActions(ActionGroup group) {
	removeOldActionPanel();

	if (group == null) return;

	myActionPanel = new ActionPanel(myTabs, myInfo, new Pass<MouseEvent>() {
	public void pass(final MouseEvent event) {
	final MouseEvent me = SwingUtilities.convertMouseEvent(event.getComponent(), event, TabLabel.this);
	processMouseEvent(me);
	}
	});

	toggleShowActions(false);

	add(myActionPanel, BorderLayout.EAST);

	myTabs.revalidateAndRepaint(false);
	}


	private void removeOldActionPanel() {
	if (myActionPanel != null) {
	myActionPanel.getParent().remove(myActionPanel);
	myActionPanel = null;
	}
	}

	public boolean updateTabActions() {
	return myActionPanel != null && myActionPanel.update();
	}

	private void setAttractionIcon(@Nullable Icon icon) {
	if (myIcon.getIcon(0) == null) {
	setIcon(null, 1);
	myOverlayedIcon = icon;
	}
	else {
	setIcon(icon, 1);
	myOverlayedIcon = null;
	}
	}

	public boolean repaintAttraction() {
	if (!myTabs.myAttractions.contains(myInfo)) {
	if (getLayeredIcon().isLayerEnabled(1)) {
	getLayeredIcon().setLayerEnabled(1, false);
	setAttractionIcon(null);
	invalidateIfNeeded();
	return true;
	}
	return false;
	}

	boolean needsUpdate = false;

	if (getLayeredIcon().getIcon(1) != myInfo.getAlertIcon()) {
	setAttractionIcon(myInfo.getAlertIcon());
	needsUpdate = true;
	}

	int maxInitialBlinkCount = 5;
	int maxRefireBlinkCount = maxInitialBlinkCount + 2;
	if (myInfo.getBlinkCount() < maxInitialBlinkCount && myInfo.isAlertRequested()) {
	getLayeredIcon().setLayerEnabled(1, !getLayeredIcon().isLayerEnabled(1));
	if (myInfo.getBlinkCount() == 0) {
	needsUpdate = true;
	}
	myInfo.setBlinkCount(myInfo.getBlinkCount() + 1);

	if (myInfo.getBlinkCount() == maxInitialBlinkCount) {
	myInfo.resetAlertRequest();
	}

	repaint();
	}
	else {
	if (myInfo.getBlinkCount() < maxRefireBlinkCount && myInfo.isAlertRequested()) {
	getLayeredIcon().setLayerEnabled(1, !getLayeredIcon().isLayerEnabled(1));
	myInfo.setBlinkCount(myInfo.getBlinkCount() + 1);

	if (myInfo.getBlinkCount() == maxRefireBlinkCount) {
	myInfo.setBlinkCount(maxInitialBlinkCount);
	myInfo.resetAlertRequest();
	}

	repaint();
	}
	else {
	needsUpdate = !getLayeredIcon().isLayerEnabled(1);
	getLayeredIcon().setLayerEnabled(1, true);
	}
	}

	invalidateIfNeeded();

	return needsUpdate;
	}

	protected void paintChildren(final Graphics g) {
	super.paintChildren(g);

	if (myOverlayedIcon == null \|\| getLabelComponent().getParent() == null) return;

	final Rectangle textBounds = SwingUtilities.convertRectangle(getLabelComponent().getParent(), getLabelComponent().getBounds(), this);
	if (getLayeredIcon().isLayerEnabled(1)) {

	final int top = (getSize().height - myOverlayedIcon.getIconHeight()) / 2;

	myOverlayedIcon.paintIcon(this, g, textBounds.x - myOverlayedIcon.getIconWidth() / 2, top);
	}
	}

	public void setTabActionsAutoHide(final boolean autoHide) {
	if (myActionPanel == null \|\| myActionPanel.isAutoHide() == autoHide) {
	return;
	}

	myActionPanel.setAutoHide(autoHide);
	}

	public void toggleShowActions(boolean show) {
	if (myActionPanel != null) {
	myActionPanel.toggleShowActions(show);
	}
	}

	public void setActionPanelVisible(boolean visible) {
	if (myActionPanel != null) {
	myActionPanel.setVisible(visible);
	}
	}

	@Override
	public String toString() {
	return myInfo.getText();
	}

	public void setTabEnabled(boolean enabled) {
	getLabelComponent().setEnabled(enabled);
	}


	@Nullable
	public BufferedImage getInactiveStateImage(Rectangle effectiveBounds) {
	BufferedImage img = null;
	if (myLastPaintedInactiveImageBounds != null && myLastPaintedInactiveImageBounds.getSize().equals(effectiveBounds.getSize())) {
	img = myInactiveStateImage;
	}
	else {
	setInactiveStateImage(null);
	}
	myLastPaintedInactiveImageBounds = effectiveBounds;
	return img;
	}

	public void setInactiveStateImage(@Nullable BufferedImage img) {
	if (myInactiveStateImage != null && img != myInactiveStateImage) {
	myInactiveStateImage.flush();
	}
	myInactiveStateImage = img;
	}

	public JComponent getLabelComponent() {
	return myLabel;
	}
	}