[dasher: 90/217] Implemented win32 version of GetTextAroundCursor.

[Patrick Welche <pwelche src gnome org>]

commit 4f0967158ad192a9b142860cdff5ac3b08f54ca8
Author: ipomoena <amajorek google com>
Date:   Sat Oct 17 13:36:38 2015 -0700

    Implemented win32 version of GetTextAroundCursor.

 Src/Win32/Dasher.cpp       |    4 ++++
 Src/Win32/Dasher.h         |    3 ++-
 Src/Win32/Widgets/Edit.cpp |   15 +++++++++++++++
 Src/Win32/Widgets/Edit.h   |    2 ++
 4 files changed, 23 insertions(+), 1 deletions(-)
---
diff --git a/Src/Win32/Dasher.cpp b/Src/Win32/Dasher.cpp
index bfa2a67..933b1af 100644
--- a/Src/Win32/Dasher.cpp
+++ b/Src/Win32/Dasher.cpp
@@ -352,3 +352,7 @@ std::string CDasher::GetContext(unsigned int iStart, unsigned int iLength) {
 int CDasher::GetAllContextLenght(){
   return m_pEdit->GetWindowTextLength();
 }
+
+std::string CDasher::GetTextAroundCursor(CControlManager::EditDistance iDist) {
+  return m_pEdit->GetTextAroundCursor(iDist);
+}
diff --git a/Src/Win32/Dasher.h b/Src/Win32/Dasher.h
index 6afd0ea..50fe4e0 100644
--- a/Src/Win32/Dasher.h
+++ b/Src/Win32/Dasher.h
@@ -53,7 +53,8 @@ public:
   virtual std::string GetAllContext();
   std::string GetContext(unsigned int iStart, unsigned int iLength);
   int GetAllContextLenght();
-
+  std::string GetTextAroundCursor(CControlManager::EditDistance iDist);
+ 
 #ifdef WIN32_SPEECH
   bool SupportsSpeech();
   void Speak(const std::string &text, bool bInterrupt);
diff --git a/Src/Win32/Widgets/Edit.cpp b/Src/Win32/Widgets/Edit.cpp
index c4415ec..7d321d6 100644
--- a/Src/Win32/Widgets/Edit.cpp
+++ b/Src/Win32/Widgets/Edit.cpp
@@ -433,6 +433,21 @@ void CEdit::GetRange(bool bForwards, CControlManager::EditDistance iDist, int* p
   }
 }
 
+std::string CEdit::GetTextAroundCursor(CControlManager::EditDistance iDist) {
+  int iStart = 0;
+  int iEnd = 0;
+  SendMessage(EM_GETSEL, (WPARAM)&iStart, (LPARAM)&iEnd);
+  if (iStart == iEnd) { // Ignore distance if text is selected. 
+    GetRange(true, iDist, &iStart, &iEnd);
+    iStart = iEnd;
+    GetRange(false, iDist, &iStart, &iEnd);
+  }
+  CString wideText;
+  GetWindowText(wideText);
+
+  return wstring_to_UTF8string(wideText.Mid(iStart, iEnd-iStart));
+}
+
 int CEdit::Move(bool bForwards, CControlManager::EditDistance iDist) {
   int iStart = 0;
   int iEnd = 0;
diff --git a/Src/Win32/Widgets/Edit.h b/Src/Win32/Widgets/Edit.h
index 2c712ab..b5daf93 100644
--- a/Src/Win32/Widgets/Edit.h
+++ b/Src/Win32/Widgets/Edit.h
@@ -86,6 +86,8 @@ class CEdit : public ATL::CWindowImpl<CEdit> {
   
   int Move(bool bForwards, Dasher::CControlManager::EditDistance iDist);
   int Delete(bool bForwards, Dasher::CControlManager::EditDistance iDist);
+  std::string GetTextAroundCursor(Dasher::CControlManager::EditDistance iDist);
+
   void SetKeyboardTarget(HWND hwnd);
   bool ConfirmAndSaveIfNeeded();
   bool Save();