From f6281d694a11cf5d5f1f2b7c4a9fde5fe96010e5 Mon Sep 17 00:00:00 2001
From: Ianos Gnatiuc <ssianky@users.sourceforge.net>
Date: Wed, 5 Oct 2005 20:35:22 +0000
Subject: [PATCH] ToggleCase on selected text

---
 docs/notework.txt  |   2 +
 golded3/geedit.cpp | 136 +++++++++++++++++++++++++++++++++++++++++++++
 golded3/geedit.h   |   3 +
 3 files changed, 141 insertions(+)

diff --git a/docs/notework.txt b/docs/notework.txt
index 445e3f6..3bdaecc 100644
--- a/docs/notework.txt
+++ b/docs/notework.txt
@@ -10,6 +10,8 @@ ______________________________________________________________________
                Notes for GoldED+ 1.1.5, /snapshot/
 ______________________________________________________________________
 
++ EditToggleCase, EditToUpper and EditToLower keys will work on selected text.
+
 + Added MenuNextArea (yes/no/unread) config file token that set default
   for cursor on "Goto Next Area?" menu.
 
diff --git a/golded3/geedit.cpp b/golded3/geedit.cpp
index d1dfe66..77b7f51 100644
--- a/golded3/geedit.cpp
+++ b/golded3/geedit.cpp
@@ -2025,6 +2025,133 @@ void IEclass::ToggleCase() {
 }
 
 
+//  ------------------------------------------------------------------
+
+void IEclass::ToggleCaseChar(gkey key,
+                             std::string::iterator it,
+                             Line *ln, int n)
+{
+  int oldchar = *it;
+  int newchar = *it;
+
+  switch (key)
+  {
+  case KK_EditToLower:
+    newchar = tolower(*it);
+    break;
+
+  case KK_EditToUpper:
+    newchar = toupper(*it);
+    break;
+
+  case KK_EditToggleCase:
+    if (toupper(*it) == oldchar)
+      newchar = tolower(*it);
+    else
+      newchar = toupper(*it);
+    break;
+  }
+
+  if (newchar != oldchar)
+  {
+    currline = ln; pcol = col = n; getthisrow(currline); prow = thisrow;
+    Undo->PushItem(EDIT_UNDO_OVR_CHAR);
+    *it = newchar;
+  }
+}
+
+
+//  ------------------------------------------------------------------
+
+void IEclass::ToggleCaseBlock(gkey key)
+{
+  GFTRK("EditToggleCaseBlock");
+
+  // Find the anchor, if any
+  Line* _anchor = findanchor();
+
+  // Did we find the anchor?
+  if (_anchor)
+  {
+    Line* oldline = currline;
+    int   oldcol = col;
+
+    Line* _firstline = currline;
+    Line* _lastline  = currline;
+    int   firstcol = col, lastcol = col;
+
+    // Search below to find the anchor line
+    while (_lastline->next and (_lastline != _anchor))
+      _lastline = _lastline->next;
+
+    // Was the anchor line above or on the current line?
+    if (_lastline != _anchor)
+    {
+      // The last copy line is the current line
+      _lastline = currline;
+
+      // Search above to find the anchor line
+      while (_firstline->prev and (_firstline != _anchor))
+        _firstline = _firstline->prev;
+      firstcol = blockcol;
+    }
+    else
+    {
+      if (currline != _anchor or blockcol > col)
+        lastcol = blockcol;
+      else
+        firstcol = blockcol;
+    }
+
+    // The _firstline and _lastline pointers
+    // are now pointing where they should
+
+    int n;
+    Line* ln = _firstline;
+    std::string::iterator it1, it2;
+
+    if (ln == _lastline)
+    {
+      it1 = ln->txt.begin() + firstcol;
+      it2 = ln->txt.begin() + lastcol;
+      for (n = firstcol; it1 < it2; it1++, n++)
+        ToggleCaseChar(key, it1, ln, n);
+    }
+    else
+    {
+      it1 = ln->txt.begin() + firstcol;
+      it2 = ln->txt.end();
+      for (n = firstcol; it1 < it2; it1++, n++)
+        ToggleCaseChar(key, it1, ln, n);
+
+      for (ln = ln->next; ln != _lastline; ln = ln->next)
+      {
+        it1 = ln->txt.begin();
+        it2 = ln->txt.end();
+        for (n = 0; it1 < it2; it1++, n++)
+          ToggleCaseChar(key, it1, ln, n);
+      }
+
+      it1 = ln->txt.begin();
+      it2 = ln->txt.begin() + lastcol;
+      for (n = 0; it1 < it2; it1++, n++)
+        ToggleCaseChar(key, it1, ln, n);
+    }
+
+    currline = oldline;
+    pcol = col = oldcol;
+    getthisrow(currline);
+    prow = thisrow;
+  }
+
+  // Refresh display
+  Line* _topline = findtopline();
+  refresh(_topline, minrow);
+
+  GFTRK(NULL);
+}
+
+
 //  ------------------------------------------------------------------
 
 void IEclass::SCodeChange(gkey key)
@@ -2242,6 +2369,15 @@ int IEclass::handlekey(gkey __key) {
       goto noselecting;
       break;
 
+    case KK_EditToLower:
+    case KK_EditToUpper:
+    case KK_EditToggleCase:
+      if (!selecting)  goto noselecting;
+
+      ToggleCaseBlock(__key);
+      undo_ready = NO;
+      return rc;
+
     default:
       rc = PlayMacro(__key, KT_E);
       if(rc == true)
diff --git a/golded3/geedit.h b/golded3/geedit.h
index 22dcf6f..7ecf072 100644
--- a/golded3/geedit.h
+++ b/golded3/geedit.h
@@ -399,6 +399,7 @@ public:
   void SpellCheck     ();
   void Tab            ();
   void ToggleCase     ();
+  void ToggleCaseBlock(gkey key);
   void SCodeChange(gkey key);
   void ToggleInsert   ();
   void ToLower        ();
@@ -406,6 +407,8 @@ public:
   void UnDelete       (bool before=true);
   void ZapQuoteBelow  ();
 
+private:
+  void ToggleCaseChar(gkey key, std::string::iterator it, Line *ln, int n);
 
   //  ----------------------------------------------------------------
 };