public static IList <TextSpan> GetHiddenRegions(this IVsEnumHiddenRegions enumHiddenRegions)
{
IList <TextSpan> regions = null;
uint count = GetCount(enumHiddenRegions);
if (count > 0)
{
regions = new List <TextSpan>((int)count);
var hiddenRegions = new IVsHiddenRegion[count];
enumHiddenRegions.Reset();
enumHiddenRegions.Next(count, hiddenRegions, out count);
for (int i = 0; i < count; i++)
{
IVsHiddenRegion hiddenRegion = hiddenRegions[i];
uint state = 0;
hiddenRegion.GetState(out state);
if ((state & (uint)HIDDEN_REGION_STATE.hrsExpanded) == 0)
{
TextSpan[] pSpan = new TextSpan[1];
hiddenRegion.GetSpan(pSpan);
regions.Add(pSpan[0]);
}
}
}
return(regions);
}
public static IList<TextSpan> GetHiddenRegions(this IVsEnumHiddenRegions enumHiddenRegions)
{
IList<TextSpan> regions = null;
uint count = GetCount(enumHiddenRegions);
if (count > 0)
{
regions = new List<TextSpan>((int)count);
var hiddenRegions = new IVsHiddenRegion[count];
enumHiddenRegions.Reset();
enumHiddenRegions.Next(count, hiddenRegions, out count);
for (int i = 0; i < count; i++)
{
IVsHiddenRegion hiddenRegion = hiddenRegions[i];
uint state = 0;
hiddenRegion.GetState(out state);
if ((state & (uint)HIDDEN_REGION_STATE.hrsExpanded) == 0)
{
TextSpan[] pSpan = new TextSpan[1];
hiddenRegion.GetSpan(pSpan);
regions.Add(pSpan[0]);
}
}
}
return regions;
}
//todo:尽在apsx下面才有效，cs文件下无效，不知道为什么
public void ToggleRegions()
{
IVsHiddenTextSession session = HiddenTextSession;
TextSpan[] aspan = new TextSpan[1];
aspan[0] = new VSTextView(VSTextView.ActiveTextView).GetWholeTextSpan();
//获取IVsEnumHiddenRegions
IVsEnumHiddenRegions ppenum;
session.EnumHiddenRegions((uint)FIND_HIDDEN_REGION_FLAGS.FHR_ALL_REGIONS, 0, aspan, out ppenum);
MessageBox.Show(GetHiddenRegionCount(ppenum).ToString());
//遍历IVsEnumHiddenRegions
uint fetched;
IVsHiddenRegion[] aregion = new IVsHiddenRegion[1];
while (ppenum.Next(1, aregion, out fetched) == VSConstants.S_OK && fetched == 1)
{
uint dwState;
aregion[0].GetState(out dwState);
dwState ^= (uint)HIDDEN_REGION_STATE.hrsExpanded;
aregion[0].SetState(dwState, (uint)CHANGE_HIDDEN_REGION_FLAGS.chrDefault);
}
}
public int GetTipText(IVsHiddenRegion pHidReg, string[] pbstrText = null)
{
//pHidReg.Invalidate((uint)CHANGE_HIDDEN_REGION_FLAGS.chrNonUndoable);
TextSpan[] textSpans = new TextSpan[1];
pHidReg.GetSpan(textSpans);
pbstrText[0] = DateTime.Now.ToString();
return VSConstants.S_OK;
}
public int GetTipText(IVsHiddenRegion pHidReg, string[] pbstrText = null)
{
//pHidReg.Invalidate((uint)CHANGE_HIDDEN_REGION_FLAGS.chrNonUndoable);
TextSpan[] textSpans = new TextSpan[1];
pHidReg.GetSpan(textSpans);
pbstrText[0] = DateTime.Now.ToString();
return(VSConstants.S_OK);
}
public int GetMarkerCommandInfo(IVsHiddenRegion pHidReg, int iItem, string[] pbstrText, uint[] pcmdf)
{
MessageBox.Show("GetMarkerCommandInfo");
return VSConstants.S_OK;
}
public int GetMarkerCommandInfo(IVsHiddenRegion pHidReg, int iItem, string[] pbstrText, uint[] pcmdf)
{
MessageBox.Show("GetMarkerCommandInfo");
return(VSConstants.S_OK);
}
public int ExecMarkerCommand(IVsHiddenRegion region, int cmd)
{
return NativeMethods.E_NOTIMPL;
}
public int GetTipText(IVsHiddenRegion region, string[] result)
{
if (result != null && result.Length > 0)
{
TextSpan[] aspan = new TextSpan[1];
NativeMethods.ThrowOnFailure(region.GetSpan(aspan));
result[0] = this.GetText(aspan[0]);
}
return NativeMethods.S_OK;
}
public void ToggleRegions()
{
IVsHiddenTextSession session = GetHiddenTextSession();
IVsEnumHiddenRegions ppenum;
TextSpan[] aspan = new TextSpan[1];
aspan[0] = GetDocumentSpan();
NativeMethods.ThrowOnFailure(session.EnumHiddenRegions((uint)FIND_HIDDEN_REGION_FLAGS.FHR_BY_CLIENT_DATA, (uint)SourceConstants.HiddenRegionCookie, aspan, out ppenum));
uint fetched;
IVsHiddenRegion[] aregion = new IVsHiddenRegion[1];
using (new CompoundAction(this, "ToggleAllRegions"))
{
while (ppenum.Next(1, aregion, out fetched) == NativeMethods.S_OK && fetched == 1)
{
uint dwState;
aregion[0].GetState(out dwState);
dwState ^= (uint)HIDDEN_REGION_STATE.hrsExpanded;
NativeMethods.ThrowOnFailure(aregion[0].SetState(dwState,
(uint)CHANGE_HIDDEN_REGION_FLAGS.chrDefault));
}
}
}
//todo:尽在apsx下面才有效，cs文件下无效，不知道为什么
public void ToggleRegions()
{
IVsHiddenTextSession session = HiddenTextSession;
TextSpan[] aspan = new TextSpan[1];
aspan[0] = new VSTextView(VSTextView.ActiveTextView).GetWholeTextSpan();
//获取IVsEnumHiddenRegions
IVsEnumHiddenRegions ppenum;
session.EnumHiddenRegions((uint)FIND_HIDDEN_REGION_FLAGS.FHR_ALL_REGIONS, 0, aspan, out ppenum);
MessageBox.Show(GetHiddenRegionCount(ppenum).ToString());
//遍历IVsEnumHiddenRegions
uint fetched;
IVsHiddenRegion[] aregion = new IVsHiddenRegion[1];
while (ppenum.Next(1, aregion, out fetched) == VSConstants.S_OK && fetched == 1)
{
uint dwState;
aregion[0].GetState(out dwState);
dwState ^= (uint)HIDDEN_REGION_STATE.hrsExpanded;
aregion[0].SetState(dwState, (uint)CHANGE_HIDDEN_REGION_FLAGS.chrDefault);
}
}
/// <include file='doc\Source.uex' path='docs/doc[@for="Source.GetTipText"]/*' />
public virtual int GetTipText(IVsHiddenRegion region, string[] result)
{
if (result != null && result.Length > 0) {
TextSpan[] aspan = new TextSpan[1];
NativeMethods.ThrowOnFailure(region.GetSpan(aspan));
// Limit lines.
TextSpan span = aspan[0];
int spanLineCount = span.iEndLine - span.iStartLine + 1;
bool truncated = spanLineCount > lineCountLimitForGetTipText;
StringBuilder stringBuilder =
GetLineSpans(span)
.Take(lineCountLimitForGetTipText)
.Select(s => LimitLineSpan(s, lineLengthLimitForGetTipText))
.Select(lineSpan => this.GetText(lineSpan.span) + (lineSpan.truncated ? "..." : String.Empty))
.Aggregate(new StringBuilder(), (sb, lineText) => sb.AppendLine(lineText));
result[0] = stringBuilder.ToString() + (truncated ? " ..." : String.Empty);
}
return NativeMethods.S_OK;
}
public void OnHiddenRegionChange(IVsHiddenRegion pHidReg, HIDDEN_REGION_EVENT EventCode, int fBufferModifiable)
{
MessageBox.Show(EventCode.ToString());
}
public int MakeBaseSpanVisible(IVsHiddenRegion pHidReg, TextSpan[] pBaseSpan)
{
MessageBox.Show("MakeBaseSpanVisible");
return(VSConstants.S_OK);
}
public int MakeBaseSpanVisible(IVsHiddenRegion pHidReg, TextSpan[] pBaseSpan)
{
MessageBox.Show("MakeBaseSpanVisible");
return VSConstants.S_OK;
}
/// <include file='doc\Source.uex' path='docs/doc[@for="Source.OnHiddenRegionChange"]/*' />
public virtual void OnHiddenRegionChange(IVsHiddenRegion region, HIDDEN_REGION_EVENT evt, int fBufferModifiable)
{
if (evt == HIDDEN_REGION_EVENT.hreAfterRegionCollapsed) {
collapsed++;
} else if (evt == HIDDEN_REGION_EVENT.hreAfterRegionExpanded) {
collapsed--;
}
}
public void OnHiddenRegionChange(IVsHiddenRegion pHidReg, HIDDEN_REGION_EVENT EventCode, int fBufferModifiable)
{
MessageBox.Show(EventCode.ToString());
}
/// <include file='doc\Source.uex' path='docs/doc[@for="Source.ProcessHiddenRegions"]/*' />
public virtual void ProcessHiddenRegions(ArrayList hiddenRegions)
{
if (!this.doOutlining) {
return;
}
// Compare the existing regions with the new regions and
// remove any that do not match the new regions.
IVsHiddenTextSession session = GetHiddenTextSession();
IVsEnumHiddenRegions ppenum;
TextSpan[] aspan = new TextSpan[1];
aspan[0] = GetDocumentSpan();
NativeMethods.ThrowOnFailure(session.EnumHiddenRegions((uint)FIND_HIDDEN_REGION_FLAGS.FHR_BY_CLIENT_DATA, (uint)Source.HiddenRegionCookie, aspan, out ppenum));
uint fetched;
IVsHiddenRegion[] aregion = new IVsHiddenRegion[1];
int matched = 0;
int removed = 0;
int added = 0;
// Create a list of IVsHiddenRegion objects, sorted in the same order that the
// authoring sink sorts. This is necessary because VS core editor does NOT return
// the regions in the same order that we add them.
ArrayList regions = new ArrayList();
ArrayList spans = new ArrayList();
while (ppenum.Next(1, aregion, out fetched) == NativeMethods.S_OK && fetched == 1) {
NativeMethods.ThrowOnFailure(aregion[0].GetSpan(aspan));
TextSpan s = aspan[0];
int i = spans.Count - 1;
while (i >= 0) {
TextSpan s2 = (TextSpan)spans[i];
if (TextSpanHelper.StartsAfterStartOf(s, s2))
break;
i--;
}
spans.Insert(i + 1, s);
regions.Insert(i + 1, aregion[0]);
}
// Iterate over session hidden regions
// Session hidden regions are the ones the editor currently knows about
ArrayList regionsToAdd = new ArrayList();
int iHiddenRegion = 0;
int cHiddenRegion = hiddenRegions.Count;
for (int i = 0; i < regions.Count; ++i)
{
IVsHiddenRegion sessionHiddenRegion = (IVsHiddenRegion)regions[i];
TextSpan sessionSpan = (TextSpan)spans[i];
// Iterate over preceeding sink hidden regions
// Sink hidden regions are the ones which resulted from a parse
NewHiddenRegion hiddenRegion = new NewHiddenRegion();
while (iHiddenRegion < cHiddenRegion)
{
hiddenRegion = (NewHiddenRegion)hiddenRegions[iHiddenRegion];
if (hiddenRegion.tsHiddenText.iStartLine >= sessionSpan.iStartLine)
{
break;
}
// Add to "ToAdd" regions (add boxed copy to avoid duplicate copies in sink and "ToAdd" collections)
// DevNote: Collect "ToAdd" regions rather than doing a hiddenRegions.RemoveAt() to avoid quadratic perf
regionsToAdd.Add(hiddenRegions[iHiddenRegion]);
++iHiddenRegion;
}
// Check whether matching sink region
if ((iHiddenRegion < cHiddenRegion) &&
TextSpanHelper.IsSameSpan(hiddenRegion.tsHiddenText, sessionSpan) &&
HasSameBanner(hiddenRegion, sessionHiddenRegion))
{
// Match (and continue)
++matched;
++iHiddenRegion;
}
else
{
// Remove from session (and continue)
NativeMethods.ThrowOnFailure(sessionHiddenRegion.Invalidate((int)CHANGE_HIDDEN_REGION_FLAGS.chrNonUndoable));
++removed;
}
}
// Add following sink hidden regions to "ToAdd" regions
if (iHiddenRegion < cHiddenRegion)
{
regionsToAdd.AddRange(hiddenRegions.GetRange(iHiddenRegion, (cHiddenRegion - iHiddenRegion)));
}
// Populate given hidden region collection with regions to add
// DevNote: This side effect existed in an earlier quadratic algorithm based on removing from
// the given collection using hiddenRegions.RemoveAt(). Some VSIP may depend on this side effect
hiddenRegions.Clear();
hiddenRegions.AddRange(regionsToAdd);
int start = Environment.TickCount;
int count = hiddenRegions.Count;
int iRegion = 0;
if (count > 0) {
// For very large documents this can take a while, so add them in chunks of
// 1000 and stop after 5 seconds.
int maxTime = this.LanguageService.Preferences.MaxRegionTime;
int chunkSize = 1000;
NewHiddenRegion[] chunk = new NewHiddenRegion[chunkSize];
while (iRegion < count && TimeUtilities.TimeSince(start) < maxTime)
{
int j = 0;
NewHiddenRegion r;
while (iRegion < count && j < chunkSize)
{
r = (NewHiddenRegion)hiddenRegions[iRegion];
if (!TextSpanHelper.ValidSpan(this, r.tsHiddenText)) {
#if LANGTRACE
Debug.Assert(false, "Invalid span " + r.tsHiddenText.iStartLine + "," + r.tsHiddenText.iStartIndex + "," + r.tsHiddenText.iEndLine + "," + r.tsHiddenText.iEndIndex);
#endif
break;
} else {
chunk[j] = r;
added++;
}
iRegion++;
j++;
}
int hr = session.AddHiddenRegions((int)CHANGE_HIDDEN_REGION_FLAGS.chrNonUndoable, j, chunk, null);
if (NativeMethods.Failed(hr)) {
break; // stop adding if we start getting errors.
}
}
}
// Check whether all hidden regions processed
if (iRegion == count)
{
// Depersist outlining (only once)
if (!haveDepersistedOutlining)
{
haveDepersistedOutlining = true;
IVsTextViewEx view = this.service.GetPrimaryViewForSource(this) as IVsTextViewEx;
if (view != null)
{
view.PersistOutliningState();
}
}
}
#if PERFTRACE
int diff = TimeUtilities.TimeSince(start);
Trace.WriteLine(String.Format(CultureInfo.InvariantCulture, "Hidden Regions: Matched={0}, Removed={1}, Addded={2}/{3} in {4} ms", matched, removed, added, hiddenRegions.Count, diff));
#endif
}
private void RemoveHiddenRegions()
{
IVsHiddenTextSession session = GetHiddenTextSession();
IVsEnumHiddenRegions ppenum;
TextSpan[] aspan = new TextSpan[1];
aspan[0] = GetDocumentSpan();
NativeMethods.ThrowOnFailure(session.EnumHiddenRegions((uint)FIND_HIDDEN_REGION_FLAGS.FHR_BY_CLIENT_DATA, (uint)SourceConstants.HiddenRegionCookie, aspan, out ppenum));
uint fetched;
IVsHiddenRegion[] aregion = new IVsHiddenRegion[1];
while (ppenum.Next(1, aregion, out fetched) == NativeMethods.S_OK && fetched == 1)
{
NativeMethods.ThrowOnFailure(aregion[0].Invalidate((int)CHANGE_HIDDEN_REGION_FLAGS.chrNonUndoable));
}
}
internal void ToggleRegions()
{
IVsHiddenTextSession session = GetHiddenTextSession();
IVsEnumHiddenRegions ppenum;
TextSpan[] aspan = new TextSpan[1];
aspan[0] = GetDocumentSpan();
NativeMethods.ThrowOnFailure(session.EnumHiddenRegions((uint)FIND_HIDDEN_REGION_FLAGS.FHR_BY_CLIENT_DATA, (uint)Source.HiddenRegionCookie, aspan, out ppenum));
uint fetched;
bool expandAll =false;
uint numRegions;
ppenum.GetCount(out numRegions);
Debug.Assert(numRegions>=0, "GetCount returned a negative number?!");
if (!(collapsed == 0 || collapsed == numRegions)) {
//not all regions are in the same state -- expand all
expandAll = true;
}
IVsHiddenRegion[] aregion = new IVsHiddenRegion[1];
using (new CompoundAction(this, "ToggleAllRegions")) {
while (ppenum.Next(1, aregion, out fetched) == NativeMethods.S_OK && fetched == 1) {
uint dwState;
if (expandAll) {
dwState = (uint)HIDDEN_REGION_STATE.hrsExpanded;
} else {
aregion[0].GetState(out dwState);
dwState ^= (uint)HIDDEN_REGION_STATE.hrsExpanded;
}
NativeMethods.ThrowOnFailure(aregion[0].SetState(dwState,
(uint)CHANGE_HIDDEN_REGION_FLAGS.chrDefault));
}
}
}
public void OnHiddenRegionChange(IVsHiddenRegion region, HIDDEN_REGION_EVENT evt, int fBufferModifiable)
{
}
//Banner comparison: in the case of editor controlled region, this is a noop
//otherwise, compare banners
//caveat is that GetBanner rountrips null to "...".
private bool HasSameBanner(NewHiddenRegion r,IVsHiddenRegion region)
{
uint behavior;
region.GetBehavior(out behavior);
if (behavior == (uint)HIDDEN_REGION_BEHAVIOR.hrbEditorControlled && r.dwBehavior == (uint)HIDDEN_REGION_BEHAVIOR.hrbEditorControlled)
{
return true; //the banner text is always a fixed string, which is "..." by default
}
string currBanner;
region.GetBanner(out currBanner);
//<STRIP>DevDiv185498: Regression from RTM: Collapsed portions of XAML do not stay collapsed</STRIP>
return r.pszBanner == currBanner || (r.pszBanner == null && currBanner == "...");
}
public int GetMarkerCommandInfo(IVsHiddenRegion region, int item, string[] outText, uint[] flags)
{
if (flags != null && flags.Length > 0)
flags[0] = 0;
if (outText != null && outText.Length > 0)
outText[0] = null;
return NativeMethods.E_NOTIMPL;
}
public int ExecMarkerCommand(IVsHiddenRegion pHidReg, int iItem)
{
MessageBox.Show("ExecMarkerCommand");
return VSConstants.S_OK;
}
public int MakeBaseSpanVisible(IVsHiddenRegion region, TextSpan[] span)
{
return NativeMethods.E_NOTIMPL;
}
public int ExecMarkerCommand(IVsHiddenRegion pHidReg, int iItem)
{
MessageBox.Show("ExecMarkerCommand");
return(VSConstants.S_OK);
}