From 215b5c0049c63c1be99a28677ca323ffc587dbb3 Mon Sep 17 00:00:00 2001
From: Don Ho <don.h@free.fr>
Date: Tue, 24 Nov 2009 00:32:54 +0000
Subject: [PATCH] [NEW_FEATURE] Add indent guide line highlighting for html/xml
 tags.

git-svn-id: svn://svn.tuxfamily.org/svnroot/notepadplus/repository/trunk@571 f5eea248-9336-0410-98b8-ebc06183d4e3
---
 PowerEditor/src/Notepad_plus.cpp              | 33 +++++++++++++++++--
 .../xmlMatchedTagsHighlighter.cpp             |  6 ++--
 .../xmlMatchedTagsHighlighter.h               |  2 +-
 3 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index 182afff1..d0518864 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -2688,7 +2688,36 @@ BOOL Notepad_plus::notify(SCNotification *notification)
 		if (nppGui._enableTagsMatchHilite)
 		{
 			XmlMatchedTagsHighlighter xmlTagMatchHiliter(_pEditView);
-			xmlTagMatchHiliter.tagMatch(nppGui._enableTagAttrsHilite);
+			pair<int, int> tagPos = xmlTagMatchHiliter.tagMatch(nppGui._enableTagAttrsHilite);
+			
+			int braceAtCaret = tagPos.first;
+			int braceOpposite = tagPos.second;
+			
+			if ((braceAtCaret != -1) && (braceOpposite == -1))
+			{
+				_pEditView->execute(SCI_SETHIGHLIGHTGUIDE, 0);
+			} 
+			else if (_pEditView->isShownIndentGuide())
+			{
+				int columnAtCaret = int(_pEditView->execute(SCI_GETCOLUMN, braceAtCaret));
+				int columnOpposite = int(_pEditView->execute(SCI_GETCOLUMN, braceOpposite));
+            
+				int lineAtCaret = int(_pEditView->execute(SCI_LINEFROMPOSITION, braceAtCaret));
+				int lineOpposite = int(_pEditView->execute(SCI_LINEFROMPOSITION, braceOpposite));
+                if (lineAtCaret != lineOpposite)
+                {
+					StyleArray & stylers = nppParam->getMiscStylerArray();
+					int iFind = stylers.getStylerIndexByID(SCE_UNIVERSAL_TAGMATCH);
+					if (iFind)
+					{
+						Style *pStyle = &(stylers.getStyler(iFind));
+						_pEditView->execute(SCI_STYLESETFORE, STYLE_BRACELIGHT, pStyle->_bgColor);
+					}
+                    // braceAtCaret - 1, braceOpposite-1 : walk around to not highlight the '<'
+				    _pEditView->execute(SCI_BRACEHIGHLIGHT, braceAtCaret-1, braceOpposite-1);
+				    _pEditView->execute(SCI_SETHIGHLIGHTGUIDE, (columnAtCaret < columnOpposite)?columnAtCaret:columnOpposite);
+                }
+			}
 		}
 		
 		if (nppGui._enableSmartHilite)
@@ -3090,7 +3119,7 @@ void Notepad_plus::braceMatch()
 	if ((braceAtCaret != -1) && (braceOpposite == -1))
     {
 		_pEditView->execute(SCI_BRACEBADLIGHT, braceAtCaret);
-		_pEditView->execute(SCI_SETHIGHLIGHTGUIDE);
+		_pEditView->execute(SCI_SETHIGHLIGHTGUIDE, 0);
 	} 
     else 
     {
diff --git a/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.cpp b/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.cpp
index 844fd722..be625290 100644
--- a/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.cpp
+++ b/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.cpp
@@ -439,7 +439,7 @@ vector< pair<int, int> > XmlMatchedTagsHighlighter::getAttributesPos(int start,
 
 
 
-void XmlMatchedTagsHighlighter::tagMatch(bool doHiliteAttr) 
+pair<int, int> XmlMatchedTagsHighlighter::tagMatch(bool doHiliteAttr) 
 {
 	// Clean up all marks of previous action
 	_pEditView->clearIndicator(SCE_UNIVERSAL_TAGMATCH);
@@ -449,7 +449,7 @@ void XmlMatchedTagsHighlighter::tagMatch(bool doHiliteAttr)
 	LangType lang = (_pEditView->getCurrentBuffer())->getLangType();
 
 	if (lang != L_XML && lang != L_HTML && lang != L_PHP && lang != L_ASP)
-		return;
+		return pair<int, int>(-1, -1);
 
 	// Get the original targets and search options to restore after tag matching operation
 	int originalStartPos = _pEditView->execute(SCI_GETTARGETSTART);
@@ -490,4 +490,6 @@ void XmlMatchedTagsHighlighter::tagMatch(bool doHiliteAttr)
 	_pEditView->execute(SCI_SETTARGETSTART, originalStartPos);
 	_pEditView->execute(SCI_SETTARGETEND, originalEndPos);
 	_pEditView->execute(SCI_SETSEARCHFLAGS, originalSearchFlags);
+	
+	return pair<int, int>(xmlTags.tagOpenStart, xmlTags.tagCloseStart);
 }
diff --git a/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.h b/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.h
index b0b40b9f..6c3f9960 100644
--- a/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.h
+++ b/PowerEditor/src/ScitillaComponent/xmlMatchedTagsHighlighter.h
@@ -27,7 +27,7 @@ enum TagCateg {tagOpen, tagClose, inSingleTag, outOfTag, invalidTag, unknownPb};
 class XmlMatchedTagsHighlighter {
 public:
 	XmlMatchedTagsHighlighter(ScintillaEditView *pEditView):_pEditView(pEditView){};
-	void tagMatch(bool doHiliteAttr);
+	pair<int, int> tagMatch(bool doHiliteAttr);
 	
 private:
 	struct XmlMatchedTagsPos {