/**
* Created on Aug 13, 2008
*
* Copyright 2008 Vuze, Inc. All rights reserved.
* This program 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; version 2 of the License only.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.aelitis.azureus.ui.swt.views.skin.sidebar;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.*;
import org.gudy.azureus2.core3.util.Debug;
import com.aelitis.azureus.ui.UIFunctionsManager;
import com.aelitis.azureus.ui.common.updater.UIUpdatable;
import com.aelitis.azureus.ui.common.viewtitleinfo.ViewTitleInfo;
import com.aelitis.azureus.ui.mdi.MdiEntry;
import com.aelitis.azureus.ui.mdi.MultipleDocumentInterface;
import com.aelitis.azureus.ui.mdi.MdiEntryVitalityImage;
import com.aelitis.azureus.ui.swt.uiupdater.UIUpdaterSWT;
/**
* @author TuxPaper
* @created Aug 13, 2008
*
*/
public class SideBarToolTips
implements Listener, UIUpdatable
{
Shell toolTipShell = null;
Shell mainShell = null;
Label toolTipLabel = null;
private final Tree tree;
private final SideBar sidebar;
private MdiEntry mdiEntry;
private Point lastRelMouseHoverPos;
/**
* Initialize
*/
public SideBarToolTips(SideBar sidebar, Tree tree) {
this.sidebar = sidebar;
this.tree = tree;
mainShell = tree.getShell();
tree.addListener(SWT.Dispose, this);
tree.addListener(SWT.KeyDown, this);
tree.addListener(SWT.MouseMove, this);
tree.addListener(SWT.MouseHover, this);
mainShell.addListener(SWT.Deactivate, this);
tree.addListener(SWT.Deactivate, this);
}
public void handleEvent(Event event) {
switch (event.type) {
case SWT.MouseHover: {
handleHover(new Point(event.x, event.y));
break;
}
case SWT.Dispose:
if (mainShell != null && !mainShell.isDisposed()) {
mainShell.removeListener(SWT.Deactivate, this);
}
// fall through
default:
if (toolTipShell != null) {
toolTipShell.dispose();
toolTipShell = null;
toolTipLabel = null;
}
break;
} // switch
} // handlEvent()
/**
*
*
* @since 3.1.1.1
*/
private void handleHover(Point mousePos) {
if (toolTipShell != null && !toolTipShell.isDisposed())
toolTipShell.dispose();
if (tree.getItemCount() == 0) {
return;
}
int indent = SideBar.END_INDENT ? tree.getClientArea().width - 1 : 0;
TreeItem treeItem = tree.getItem(new Point(indent, mousePos.y));
if (treeItem == null) {
return;
}
mdiEntry = (MdiEntry) treeItem.getData("MdiEntry");
if (mdiEntry == null) {
return;
}
Rectangle itemBounds = treeItem.getBounds();
Point relPos = new Point(mousePos.x, mousePos.y - itemBounds.y);
String sToolTip = getToolTip(relPos);
if (sToolTip == null || sToolTip.length() == 0) {
return;
}
lastRelMouseHoverPos = relPos;
Display d = tree.getDisplay();
if (d == null)
return;
// We don't get mouse down notifications on trim or borders..
toolTipShell = new Shell(tree.getShell(), SWT.ON_TOP);
toolTipShell.addListener(SWT.Dispose, new Listener() {
public void handleEvent(Event event) {
UIUpdaterSWT.getInstance().removeUpdater(SideBarToolTips.this);
}
});
FillLayout f = new FillLayout();
try {
f.marginWidth = 3;
f.marginHeight = 1;
} catch (NoSuchFieldError e) {
/* Ignore for Pre 3.0 SWT.. */
}
toolTipShell.setLayout(f);
toolTipShell.setBackground(d.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
toolTipLabel = new Label(toolTipShell, SWT.WRAP);
toolTipLabel.setForeground(d.getSystemColor(SWT.COLOR_INFO_FOREGROUND));
toolTipLabel.setBackground(d.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
toolTipLabel.setText(sToolTip.replaceAll("&", "&&"));
// compute size on label instead of shell because label
// calculates wrap, while shell doesn't
Point size = toolTipLabel.computeSize(SWT.DEFAULT, SWT.DEFAULT);
if (size.x > 600) {
size = toolTipLabel.computeSize(600, SWT.DEFAULT, true);
}
size.x += toolTipShell.getBorderWidth() * 2 + 2;
size.y += toolTipShell.getBorderWidth() * 2;
try {
size.x += toolTipShell.getBorderWidth() * 2 + (f.marginWidth * 2);
size.y += toolTipShell.getBorderWidth() * 2 + (f.marginHeight * 2);
} catch (NoSuchFieldError e) {
/* Ignore for Pre 3.0 SWT.. */
}
Point pt = tree.toDisplay(mousePos.x, mousePos.y);
Rectangle displayRect;
try {
displayRect = tree.getMonitor().getClientArea();
} catch (NoSuchMethodError e) {
displayRect = tree.getDisplay().getClientArea();
}
if (pt.x + size.x > displayRect.x + displayRect.width) {
pt.x = displayRect.x + displayRect.width - size.x;
}
if (pt.y + size.y > displayRect.y + displayRect.height) {
pt.y -= size.y + 2;
} else {
pt.y += 21;
}
if (pt.y < displayRect.y)
pt.y = displayRect.y;
toolTipShell.setBounds(pt.x, pt.y, size.x, size.y);
toolTipShell.setVisible(true);
UIUpdaterSWT.getInstance().addUpdater(this);
}
/**
* @return
*
* @since 3.1.1.1
*/
private String getToolTip(Point mousePos_RelativeToItem) {
MdiEntryVitalityImage[] vitalityImages = mdiEntry.getVitalityImages();
for (int i = 0; i < vitalityImages.length; i++) {
SideBarVitalityImageSWT vitalityImage = (SideBarVitalityImageSWT) vitalityImages[i];
if (vitalityImage == null) {
continue;
}
String indicatorToolTip = vitalityImage.getToolTip();
if (indicatorToolTip == null || !vitalityImage.isVisible()) {
continue;
}
Rectangle hitArea = vitalityImage.getHitArea();
if (hitArea == null) {
continue;
}
if (hitArea.contains(mousePos_RelativeToItem)) {
return indicatorToolTip;
}
}
if (mdiEntry.getViewTitleInfo() != null) {
String tt = (String) mdiEntry.getViewTitleInfo().getTitleInfoProperty(ViewTitleInfo.TITLE_INDICATOR_TEXT_TOOLTIP);
return tt;
}
return null;
}
// @see com.aelitis.azureus.ui.common.updater.UIUpdatable#getUpdateUIName()
public String getUpdateUIName() {
return "SideBarToolTips";
}
// @see com.aelitis.azureus.ui.common.updater.UIUpdatable#updateUI()
public void updateUI() {
if (toolTipLabel == null || toolTipLabel.isDisposed()) {
return;
}
if (mdiEntry == null || mdiEntry.getViewTitleInfo() == null) {
return;
}
String sToolTip = getToolTip(lastRelMouseHoverPos);
if (sToolTip == null) {
return;
}
toolTipLabel.setText(sToolTip.replaceAll("&", "&&"));
}
}