Return NULL from wxWindow::GetCapture() when the capture is being lost.

[wxWidgets.git] / src / common / textbuf.cpp

diff --git a/src/common/textbuf.cpp b/src/common/textbuf.cpp
index e77cf8be0d609e681df497a30c3ea31f4b4d6164..406043e58e38bb027261826aabb3b57e09097724 100644 (file)
--- a/src/common/textbuf.cpp
+++ b/src/common/textbuf.cpp
@@ -3,7 +3,7 @@
 // Purpose:     implementation of wxTextBuffer class
 // Created:     14.11.01
 // Author:      Morten Hanssen, Vadim Zeitlin
-// Copyright:   (c) 1998-2001 wxWindows team
+// Copyright:   (c) 1998-2001 wxWidgets team
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
@@ -11,10 +11,6 @@
 // headers
 // ============================================================================
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "textbuf.h"
-#endif
-
 #include  "wx/wxprec.h"
 
 #ifdef __BORLANDC__
@@ -38,18 +34,13 @@
 // ----------------------------------------------------------------------------
 
 // default type is the native one
-// the native type under Mac OS X is:
-//   - Unix when compiling with the Apple Developer Tools (__UNIX__)
-//   - Mac when compiling with CodeWarrior (__WXMAC__)
 
 const wxTextFileType wxTextBuffer::typeDefault =
 #if defined(__WINDOWS__) || defined(__DOS__)
   wxTextFileType_Dos;
 #elif defined(__UNIX__)
   wxTextFileType_Unix;
-#elif defined(__WXMAC__)
-  wxTextFileType_Mac;
-#elif defined(__WXPM__)
+#elif defined(__OS2__)
   wxTextFileType_Os2;
 #else
   wxTextFileType_None;
@@ -63,7 +54,7 @@ const wxChar *wxTextBuffer::GetEOL(wxTextFileType type)
             wxFAIL_MSG(wxT("bad buffer type in wxTextBuffer::GetEOL."));
             // fall through nevertheless - we must return something...
 
-        case wxTextFileType_None: return wxT("");
+        case wxTextFileType_None: return wxEmptyString;
         case wxTextFileType_Unix: return wxT("\n");
         case wxTextFileType_Dos:  return wxT("\r\n");
         case wxTextFileType_Mac:  return wxT("\r");
@@ -77,41 +68,41 @@ wxString wxTextBuffer::Translate(const wxString& text, wxTextFileType type)
         return text;
 
     // nor if it is empty
-    if ( text.IsEmpty() )
+    if ( text.empty() )
         return text;
 
     wxString eol = GetEOL(type), result;
 
     // optimization: we know that the length of the new string will be about
-    // the same as the length of the old one, so prealloc memory to aviod
+    // the same as the length of the old one, so prealloc memory to avoid
     // unnecessary relocations
     result.Alloc(text.Len());
 
     wxChar chLast = 0;
-    for ( const wxChar *pc = text.c_str(); *pc; pc++ )
+    for ( wxString::const_iterator i = text.begin(); i != text.end(); ++i )
     {
-        wxChar ch = *pc;
+        wxChar ch = *i;
         switch ( ch ) {
-            case _T('\n'):
+            case wxT('\n'):
                 // Dos/Unix line termination
                 result += eol;
                 chLast = 0;
                 break;
 
-            case _T('\r'):
-                if ( chLast == _T('\r') ) {
+            case wxT('\r'):
+                if ( chLast == wxT('\r') ) {
                     // Mac empty line
                     result += eol;
                 }
                 else {
                     // just remember it: we don't know whether it is just "\r"
                     // or "\r\n" yet
-                    chLast = _T('\r');
+                    chLast = wxT('\r');
                 }
                 break;
 
             default:
-                if ( chLast == _T('\r') ) {
+                if ( chLast == wxT('\r') ) {
                     // Mac line termination
                     result += eol;
 
@@ -135,6 +126,8 @@ wxString wxTextBuffer::Translate(const wxString& text, wxTextFileType type)
 
 #if wxUSE_TEXTBUFFER
 
+wxString wxTextBuffer::ms_eof;
+
 // ----------------------------------------------------------------------------
 // ctors & dtor
 // ----------------------------------------------------------------------------
@@ -143,11 +136,12 @@ wxTextBuffer::wxTextBuffer(const wxString& strBufferName)
             : m_strBufferName(strBufferName)
 {
     m_nCurLine = 0;
-    m_isOpened = FALSE;
+    m_isOpened = false;
 }
 
 wxTextBuffer::~wxTextBuffer()
 {
+    // required here for Darwin
 }
 
 // ----------------------------------------------------------------------------
@@ -169,33 +163,33 @@ bool wxTextBuffer::Create(const wxString& strBufferName)
 bool wxTextBuffer::Create()
 {
     // buffer name must be either given in ctor or in Create(const wxString&)
-    wxASSERT( !m_strBufferName.IsEmpty() );
+    wxASSERT( !m_strBufferName.empty() );
 
     // if the buffer already exists do nothing
-    if ( Exists() ) return FALSE;
-  
+    if ( Exists() ) return false;
+
     if ( !OnOpen(m_strBufferName, WriteAccess) )
-        return FALSE;
+        return false;
 
     OnClose();
-    return TRUE;
+    return true;
 }
 
-bool wxTextBuffer::Open(const wxString& strBufferName, wxMBConv& conv)
+bool wxTextBuffer::Open(const wxString& strBufferName, const wxMBConv& conv)
 {
     m_strBufferName = strBufferName;
 
     return Open(conv);
 }
 
-bool wxTextBuffer::Open(wxMBConv& conv)
+bool wxTextBuffer::Open(const wxMBConv& conv)
 {
     // buffer name must be either given in ctor or in Open(const wxString&)
-    wxASSERT( !m_strBufferName.IsEmpty() );
+    wxASSERT( !m_strBufferName.empty() );
 
     // open buffer in read-only mode
     if ( !OnOpen(m_strBufferName, ReadAccess) )
-        return FALSE;
+        return false;
 
     // read buffer into memory
     m_isOpened = OnRead(conv);
@@ -218,7 +212,7 @@ wxTextFileType wxTextBuffer::GuessType() const
 
     // we take MAX_LINES_SCAN in the beginning, middle and the end of buffer
     #define MAX_LINES_SCAN    (10)
-    size_t nCount = m_aLines.Count() / 3,
+    size_t nCount = m_aLines.GetCount() / 3,
         nScan =  nCount > 3*MAX_LINES_SCAN ? MAX_LINES_SCAN : nCount / 3;
 
     #define   AnalyseLine(n)              \
@@ -226,7 +220,7 @@ wxTextFileType wxTextBuffer::GuessType() const
             case wxTextFileType_Unix: nUnix++; break;   \
             case wxTextFileType_Dos:  nDos++;  break;   \
             case wxTextFileType_Mac:  nMac++;  break;   \
-            default: wxFAIL_MSG(_("unknown line terminator")); \
+            default: wxFAIL_MSG(wxT("unknown line terminator")); \
         }
 
     size_t n;
@@ -250,9 +244,7 @@ wxTextFileType wxTextBuffer::GuessType() const
                                                     ? wxTextFileType_##t1   \
                                                     : wxTextFileType_##t2
 
-        // Watcom C++ doesn't seem to be able to handle the macro
-        // VS: Watcom 11 doesn't have a problem...
-#if !(defined(__WATCOMC__) && (__WATCOMC__ < 1100))
+#if !defined(__WATCOMC__) || wxCHECK_WATCOM_VERSION(1,4)
         if ( nDos > nUnix )
             return GREATER_OF(Dos, Mac);
         else if ( nDos < nUnix )
@@ -272,18 +264,15 @@ wxTextFileType wxTextBuffer::GuessType() const
 
 bool wxTextBuffer::Close()
 {
-    m_aTypes.Clear();
-    m_aLines.Clear();
-    m_nCurLine = 0;
-    m_isOpened = FALSE;
+    Clear();
+    m_isOpened = false;
 
-    return TRUE;
+    return true;
 }
 
-bool wxTextBuffer::Write(wxTextFileType typeNew, wxMBConv& conv)
+bool wxTextBuffer::Write(wxTextFileType typeNew, const wxMBConv& conv)
 {
     return OnWrite(typeNew, conv);
 }
 
 #endif // wxUSE_TEXTBUFFER
-