108 lines
5.0 KiB
C#
108 lines
5.0 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Microsoft.VisualStudio.Language.Intellisense;
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using System.Collections.ObjectModel;
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using Microsoft.VisualStudio.Text;
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using Microsoft.VisualStudio.Text.Tagging;
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using System.ComponentModel.Composition;
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using Microsoft.VisualStudio.Utilities;
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using VSMerlin32.Coloring;
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namespace VSMerlin32
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{
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[Export(typeof(IQuickInfoSourceProvider))]
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[ContentType("Merlin32")]
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[Name("Merlin32QuickInfo")]
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class Merlin32QuickInfoSourceProvider : IQuickInfoSourceProvider
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{
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[Import]
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IBufferTagAggregatorFactoryService aggService = null;
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public IQuickInfoSource TryCreateQuickInfoSource(ITextBuffer textBuffer)
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{
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return new Merlin32QuickInfoSource(textBuffer, aggService.CreateTagAggregator<Merlin32TokenTag>(textBuffer));
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}
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}
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class Merlin32QuickInfoSource : IQuickInfoSource
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{
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private ITagAggregator<Merlin32TokenTag> _aggregator;
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private ITextBuffer _buffer;
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private Merlin32KeywordsHelper _Merlin32OpcodesHelper = new Merlin32KeywordsHelper();
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private bool _disposed = false;
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public Merlin32QuickInfoSource(ITextBuffer buffer, ITagAggregator<Merlin32TokenTag> aggregator)
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{
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_aggregator = aggregator;
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_buffer = buffer;
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}
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public void AugmentQuickInfoSession(IQuickInfoSession session, IList<object> quickInfoContent, out ITrackingSpan applicableToSpan)
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{
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applicableToSpan = null;
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if (_disposed)
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throw new ObjectDisposedException("TestQuickInfoSource");
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var triggerPoint = (SnapshotPoint) session.GetTriggerPoint(_buffer.CurrentSnapshot);
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if (triggerPoint == null)
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return;
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foreach (IMappingTagSpan<Merlin32TokenTag> curTag in _aggregator.GetTags(new SnapshotSpan(triggerPoint, triggerPoint)))
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{
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if ((curTag.Tag.Tokentype == Merlin32TokenTypes.Merlin32Opcode) || (curTag.Tag.Tokentype == Merlin32TokenTypes.Merlin32Directive) || (curTag.Tag.Tokentype == Merlin32TokenTypes.Merlin32DataDefine))
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{
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var tagSpan = curTag.Span.GetSpans(_buffer).First();
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// Before
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//if (tagSpan.GetText() == Merlin32Opcodes.ORG.ToString())
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//{
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// applicableToSpan = _buffer.CurrentSnapshot.CreateTrackingSpan(tagSpan, SpanTrackingMode.EdgeExclusive);
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// quickInfoContent.Add("Must be followed by the program's origin, e.g. org $800");
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//}
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// OG After
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applicableToSpan = _buffer.CurrentSnapshot.CreateTrackingSpan(tagSpan, SpanTrackingMode.EdgeExclusive);
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if (tagSpan.GetText() == Resources.directives.ELUPValue)
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{
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quickInfoContent.Add(_Merlin32OpcodesHelper._Merlin32KeywordsQuickInfo[Merlin32Directives.ELUP.ToString()]);
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}
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else
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{
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// TODO: why do I get an exception here if I don't test for string.Empty!?
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/*
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System.Collections.Generic.KeyNotFoundException was unhandled by user code
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HResult=-2146232969
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Message=The given key was not present in the dictionary.
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Source=mscorlib
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StackTrace:
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at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
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at VSMerlin32.Merlin32QuickInfoSource.AugmentQuickInfoSession(IQuickInfoSession session, IList`1 quickInfoContent, ITrackingSpan& applicableToSpan) in c:\Users\Olivier\Documents\Visual Studio 2013\Projects\Merlin32 Language Service\Merlin32Language\Intellisense\Merlin32QuickInfoSource.cs:line 77
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at Microsoft.VisualStudio.Language.Intellisense.Implementation.QuickInfoSession.Recalculate()
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at Microsoft.VisualStudio.Language.Intellisense.Implementation.QuickInfoSession.Start()
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at Microsoft.VisualStudio.Language.Intellisense.Implementation.DefaultQuickInfoController.OnTextView_MouseHover(Object sender, MouseHoverEventArgs e)
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at Microsoft.VisualStudio.Text.Editor.Implementation.WpfTextView.RaiseHoverEvents()
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InnerException:
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*/
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// Compare with changeset 151, you'll see why I ask...
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if (string.Empty != tagSpan.GetText())
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{
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quickInfoContent.Add(_Merlin32OpcodesHelper._Merlin32KeywordsQuickInfo[tagSpan.GetText().ToUpper()]);
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}
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}
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}
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}
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}
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public void Dispose()
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{
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_disposed = true;
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}
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}
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}
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