noahrichards

testing gist

noahrichards

using System;
using System.Collections.Generic;
using System.ComponentModel.Composition;
using System.Linq;
using System.Windows.Media;
using Microsoft.VisualStudio.ApplicationModel.Environments;
using Microsoft.VisualStudio.Text;
using Microsoft.VisualStudio.Text.Classification;
using Microsoft.VisualStudio.Utilities;

noahrichards

//// Using the caret directly

// assuming you have ITextView textView
// assuming you have the int line/offset (where offset is from the start of the line)

var position = textView.TextSnapshot.GetLineFromLineNumber(line) + offset;

textView.Caret.MoveTo(position);
textView.Selection.Select(new SnapshotSpan(position, position), false);

noahrichards

//// Moving to a new visual line

// Assuming you have ITextView textView

// 1. Assuming you have the new line number

var bufferLine = textView.TextSnapshot.GetLineFromLineNumber(lineNumber);
var viewLine = textView.GetTextViewLineContainingBufferPosition(bufferLine.Start);

textView.Caret.MoveTo(viewLine); // preserves x coordinate

noahrichards

using System.ComponentModel.Composition;
using Microsoft.VisualStudio.Utilities;
using Microsoft.VisualStudio.Text.Editor;
using Microsoft.VisualStudio.Text.Outlining;
using System.Windows.Input;
using Microsoft.VisualStudio.Text;

namespace CollapseAllButThis
{
    [Export(typeof(IKeyProcessorProvider))]

noahrichards

// Make the background goldenrod yellow :)

    [Export(typeof(IWpfTextViewCreationListener))]
    [ContentType("text")]
    [TextViewRole(PredefinedTextViewRoles.Document)]
    internal sealed class CreationListener : IWpfTextViewCreationListener
    {
        public void TextViewCreated(IWpfTextView textView, IEnvironment context)
        {
            textView.Background = Brushes.PaleGoldenrod;

noahrichards

// starting with a SnapshotPoint, text line, or SnapshotSpan
SnapshotPoint point;
ITextSnapshotLine line = point.GetContainingLine();
SnapshotSpan extent = line.Extent;

SnapshotPoint start;

for (start = extent.Start; start < line.End && char.IsWhitespace(start.GetChar()); start++);

SnapshotSpan extentExcludingLeadingWhitespace = new SnapshotPoint(start, extent.End);

noahrichards

    [Export(typeof(ITaggerProvider))]
    [TagType(typeof(SquiggleTag))] // this will probably be "IErrorTag" in the next release
    [ContentType("text")]          // "text" is the base of basically all content types
    internal sealed class ToDoTaggerProvider : ITaggerProvider
    {
        // Note: the "context" arg has been removed, but is still there in Beta 1
        public ITagger<T> GetTagger<T>(ITextBuffer buffer, IEnvironment context) where T : ITag
        {
            return new ToDoTagger() as ITagger<T>;
        }

noahrichards

    internal sealed class ToDoTagger : ITagger<SquiggleTag>
    {
        // Our simple tagger can ignore this for now
        public Event<SnapshotSpanChangedArgs> TagsChanged;

        public IEnumerable<ITagSpan<SquiggleTag>> GetTags(NormalizedSnapshotSpanCollection spans)
        {
            foreach(SnapshotSpan span in spans)
            {
                string spanText = span.GetText();

noahrichards

    [Export(typeof(ITaggerProvider))]
    [TagType(typeof(SquiggleTag))] // this will probably be "IErrorTag" in the next release
    [ContentType("text")]          // "text" is the base of basically all content types
    internal sealed class ToDoTaggerProvider : ITaggerProvider
    {
        // Note: the "context" arg has been removed, but is still there in Beta 1
        public ITagger<T> GetTagger<T>(ITextBuffer buffer, IEnvironment context) where T : ITag
        {
            return new ToDoTagger() as ITagger<T>;
        }