Mercurial > projects > dwt-addons
view dwtx/jface/text/source/OverviewRulerHoverManager.d @ 145:02cd5f1224d3
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author | Frank Benoit <benoit@tionex.de> |
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date | Sun, 24 Aug 2008 22:31:00 +0200 |
parents | b6bad70d540a |
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/******************************************************************************* * 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 dwtx.jface.text.source.OverviewRulerHoverManager; import dwtx.jface.text.source.ISharedTextColors; // packageimport import dwtx.jface.text.source.ILineRange; // packageimport import dwtx.jface.text.source.IAnnotationPresentation; // packageimport import dwtx.jface.text.source.IVerticalRulerInfoExtension; // packageimport import dwtx.jface.text.source.ICharacterPairMatcher; // packageimport import dwtx.jface.text.source.TextInvocationContext; // packageimport import dwtx.jface.text.source.LineChangeHover; // packageimport import dwtx.jface.text.source.IChangeRulerColumn; // packageimport import dwtx.jface.text.source.IAnnotationMap; // packageimport import dwtx.jface.text.source.IAnnotationModelListenerExtension; // packageimport import dwtx.jface.text.source.ISourceViewerExtension2; // packageimport import dwtx.jface.text.source.IAnnotationHover; // packageimport import dwtx.jface.text.source.ContentAssistantFacade; // packageimport import dwtx.jface.text.source.IAnnotationAccess; // packageimport import dwtx.jface.text.source.IVerticalRulerExtension; // packageimport import dwtx.jface.text.source.IVerticalRulerColumn; // packageimport import dwtx.jface.text.source.LineNumberRulerColumn; // packageimport import dwtx.jface.text.source.MatchingCharacterPainter; // packageimport import dwtx.jface.text.source.IAnnotationModelExtension; // packageimport import dwtx.jface.text.source.ILineDifferExtension; // packageimport import dwtx.jface.text.source.DefaultCharacterPairMatcher; // packageimport import dwtx.jface.text.source.LineNumberChangeRulerColumn; // packageimport import dwtx.jface.text.source.IAnnotationAccessExtension; // packageimport import dwtx.jface.text.source.ISourceViewer; // packageimport import dwtx.jface.text.source.AnnotationModel; // packageimport import dwtx.jface.text.source.ILineDifferExtension2; // packageimport import dwtx.jface.text.source.IAnnotationModelListener; // packageimport import dwtx.jface.text.source.IVerticalRuler; // packageimport import dwtx.jface.text.source.DefaultAnnotationHover; // packageimport import dwtx.jface.text.source.SourceViewer; // packageimport import dwtx.jface.text.source.SourceViewerConfiguration; // packageimport import dwtx.jface.text.source.AnnotationBarHoverManager; // packageimport import dwtx.jface.text.source.CompositeRuler; // packageimport import dwtx.jface.text.source.ImageUtilities; // packageimport import dwtx.jface.text.source.VisualAnnotationModel; // packageimport import dwtx.jface.text.source.IAnnotationModel; // packageimport import dwtx.jface.text.source.ISourceViewerExtension3; // packageimport import dwtx.jface.text.source.ILineDiffInfo; // packageimport import dwtx.jface.text.source.VerticalRulerEvent; // packageimport import dwtx.jface.text.source.ChangeRulerColumn; // packageimport import dwtx.jface.text.source.ILineDiffer; // packageimport import dwtx.jface.text.source.AnnotationModelEvent; // packageimport import dwtx.jface.text.source.AnnotationColumn; // packageimport import dwtx.jface.text.source.AnnotationRulerColumn; // packageimport import dwtx.jface.text.source.IAnnotationHoverExtension; // packageimport import dwtx.jface.text.source.AbstractRulerColumn; // packageimport import dwtx.jface.text.source.ISourceViewerExtension; // packageimport import dwtx.jface.text.source.AnnotationMap; // packageimport import dwtx.jface.text.source.IVerticalRulerInfo; // packageimport import dwtx.jface.text.source.IAnnotationModelExtension2; // packageimport import dwtx.jface.text.source.LineRange; // packageimport import dwtx.jface.text.source.IAnnotationAccessExtension2; // packageimport import dwtx.jface.text.source.VerticalRuler; // packageimport import dwtx.jface.text.source.JFaceTextMessages; // packageimport import dwtx.jface.text.source.IOverviewRuler; // packageimport import dwtx.jface.text.source.Annotation; // packageimport import dwtx.jface.text.source.IVerticalRulerListener; // packageimport import dwtx.jface.text.source.ISourceViewerExtension4; // packageimport import dwtx.jface.text.source.AnnotationPainter; // packageimport import dwtx.jface.text.source.IAnnotationHoverExtension2; // packageimport import dwtx.jface.text.source.OverviewRuler; // packageimport import dwt.dwthelper.utils; import dwt.custom.StyledText; import dwt.graphics.Point; import dwt.graphics.Rectangle; import dwt.widgets.ScrollBar; import dwtx.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); } }