Mercurial > projects > dwt2
diff org.eclipse.jface.text/src/org/eclipse/jface/text/source/OverviewRulerHoverManager.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/org.eclipse.jface.text/src/org/eclipse/jface/text/source/OverviewRulerHoverManager.d Sat Mar 14 18:23:29 2009 +0100 @@ -0,0 +1,158 @@ +/******************************************************************************* + * Copyright (c) 2000, 2008 IBM Corporation and others. + * All rights reserved. This program and the accompanying materials + * are made available under the terms of the Eclipse Public License v1.0 + * which accompanies this distribution, and is available at + * http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * IBM Corporation - initial API and implementation + * Port to the D programming language: + * Frank Benoit <benoit@tionex.de> + *******************************************************************************/ +module org.eclipse.jface.text.source.OverviewRulerHoverManager; + +import org.eclipse.jface.text.source.ISharedTextColors; // packageimport +import org.eclipse.jface.text.source.ILineRange; // packageimport +import org.eclipse.jface.text.source.IAnnotationPresentation; // packageimport +import org.eclipse.jface.text.source.IVerticalRulerInfoExtension; // packageimport +import org.eclipse.jface.text.source.ICharacterPairMatcher; // packageimport +import org.eclipse.jface.text.source.TextInvocationContext; // packageimport +import org.eclipse.jface.text.source.LineChangeHover; // packageimport +import org.eclipse.jface.text.source.IChangeRulerColumn; // packageimport +import org.eclipse.jface.text.source.IAnnotationMap; // packageimport +import org.eclipse.jface.text.source.IAnnotationModelListenerExtension; // packageimport +import org.eclipse.jface.text.source.ISourceViewerExtension2; // packageimport +import org.eclipse.jface.text.source.IAnnotationHover; // packageimport +import org.eclipse.jface.text.source.ContentAssistantFacade; // packageimport +import org.eclipse.jface.text.source.IAnnotationAccess; // packageimport +import org.eclipse.jface.text.source.IVerticalRulerExtension; // packageimport +import org.eclipse.jface.text.source.IVerticalRulerColumn; // packageimport +import org.eclipse.jface.text.source.LineNumberRulerColumn; // packageimport +import org.eclipse.jface.text.source.MatchingCharacterPainter; // packageimport +import org.eclipse.jface.text.source.IAnnotationModelExtension; // packageimport +import org.eclipse.jface.text.source.ILineDifferExtension; // packageimport +import org.eclipse.jface.text.source.DefaultCharacterPairMatcher; // packageimport +import org.eclipse.jface.text.source.LineNumberChangeRulerColumn; // packageimport +import org.eclipse.jface.text.source.IAnnotationAccessExtension; // packageimport +import org.eclipse.jface.text.source.ISourceViewer; // packageimport +import org.eclipse.jface.text.source.AnnotationModel; // packageimport +import org.eclipse.jface.text.source.ILineDifferExtension2; // packageimport +import org.eclipse.jface.text.source.IAnnotationModelListener; // packageimport +import org.eclipse.jface.text.source.IVerticalRuler; // packageimport +import org.eclipse.jface.text.source.DefaultAnnotationHover; // packageimport +import org.eclipse.jface.text.source.SourceViewer; // packageimport +import org.eclipse.jface.text.source.SourceViewerConfiguration; // packageimport +import org.eclipse.jface.text.source.AnnotationBarHoverManager; // packageimport +import org.eclipse.jface.text.source.CompositeRuler; // packageimport +import org.eclipse.jface.text.source.ImageUtilities; // packageimport +import org.eclipse.jface.text.source.VisualAnnotationModel; // packageimport +import org.eclipse.jface.text.source.IAnnotationModel; // packageimport +import org.eclipse.jface.text.source.ISourceViewerExtension3; // packageimport +import org.eclipse.jface.text.source.ILineDiffInfo; // packageimport +import org.eclipse.jface.text.source.VerticalRulerEvent; // packageimport +import org.eclipse.jface.text.source.ChangeRulerColumn; // packageimport +import org.eclipse.jface.text.source.ILineDiffer; // packageimport +import org.eclipse.jface.text.source.AnnotationModelEvent; // packageimport +import org.eclipse.jface.text.source.AnnotationColumn; // packageimport +import org.eclipse.jface.text.source.AnnotationRulerColumn; // packageimport +import org.eclipse.jface.text.source.IAnnotationHoverExtension; // packageimport +import org.eclipse.jface.text.source.AbstractRulerColumn; // packageimport +import org.eclipse.jface.text.source.ISourceViewerExtension; // packageimport +import org.eclipse.jface.text.source.AnnotationMap; // packageimport +import org.eclipse.jface.text.source.IVerticalRulerInfo; // packageimport +import org.eclipse.jface.text.source.IAnnotationModelExtension2; // packageimport +import org.eclipse.jface.text.source.LineRange; // packageimport +import org.eclipse.jface.text.source.IAnnotationAccessExtension2; // packageimport +import org.eclipse.jface.text.source.VerticalRuler; // packageimport +import org.eclipse.jface.text.source.JFaceTextMessages; // packageimport +import org.eclipse.jface.text.source.IOverviewRuler; // packageimport +import org.eclipse.jface.text.source.Annotation; // packageimport +import org.eclipse.jface.text.source.IVerticalRulerListener; // packageimport +import org.eclipse.jface.text.source.ISourceViewerExtension4; // packageimport +import org.eclipse.jface.text.source.AnnotationPainter; // packageimport +import org.eclipse.jface.text.source.IAnnotationHoverExtension2; // packageimport +import org.eclipse.jface.text.source.OverviewRuler; // packageimport + + +import java.lang.all; +import java.util.Set; + + + +import org.eclipse.swt.custom.StyledText; +import org.eclipse.swt.graphics.Point; +import org.eclipse.swt.graphics.Rectangle; +import org.eclipse.swt.widgets.ScrollBar; +import org.eclipse.jface.text.IInformationControlCreator; + +/** + * This manager controls the layout, content, and visibility of an information + * control in reaction to mouse hover events issued by the overview ruler of a + * source viewer. + * + * @since 2.1 + */ +class OverviewRulerHoverManager : AnnotationBarHoverManager { + + /** + * Creates an overview hover manager with the given parameters. In addition, + * the hovers anchor is RIGHT and the margin is 5 points to the right. + * + * @param ruler the overview ruler this manager connects to + * @param sourceViewer the source viewer this manager connects to + * @param annotationHover the annotation hover providing the information to be displayed + * @param creator the information control creator + */ + public this(IOverviewRuler ruler, ISourceViewer sourceViewer, IAnnotationHover annotationHover, IInformationControlCreator creator) { + super(ruler, sourceViewer, annotationHover, creator); + setAnchor(ANCHOR_LEFT); + StyledText textWidget= sourceViewer.getTextWidget(); + if (textWidget !is null) { + ScrollBar verticalBar= textWidget.getVerticalBar(); + if (verticalBar !is null) + setMargins(verticalBar.getSize().x, 5); + } + } + + /* + * @see AbstractHoverInformationControlManager#computeInformation() + */ + protected void computeInformation() { + Point location= getHoverEventLocation(); + int line= getVerticalRulerInfo().toDocumentLineNumber(location.y); + IAnnotationHover hover= getAnnotationHover(); + + IInformationControlCreator controlCreator= null; + if ( cast(IAnnotationHoverExtension)hover ) + controlCreator= (cast(IAnnotationHoverExtension)hover).getHoverControlCreator(); + setCustomInformationControlCreator(controlCreator); + + setInformation(hover.getHoverInfo(getSourceViewer(), line), computeArea(location.y)); + } + + /** + * Determines graphical area covered for which the hover is valid. + * + * @param y y-coordinate in the vertical ruler + * @return the graphical extend where the hover is valid + */ + private Rectangle computeArea(int y) { + // This is OK (see constructor) + IOverviewRuler overviewRuler= cast(IOverviewRuler) getVerticalRulerInfo(); + + int hover_height= overviewRuler.getAnnotationHeight(); + int hover_width= getVerticalRulerInfo().getControl().getSize().x; + + // Calculate y-coordinate for hover + int hover_y= y; + bool hasAnnotation= true; + while (hasAnnotation && hover_y > y - hover_height) { + hover_y--; + hasAnnotation= overviewRuler.hasAnnotation(hover_y); + } + hover_y++; + + return new Rectangle(0, hover_y, hover_width, hover_height); + } +}