Add a helper wxApp::GetValidTraits() method.

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

diff --git a/src/common/stream.cpp b/src/common/stream.cpp
index 94a1244b2b2058bbbd51cd41e0dbdd2962b6f046..1b1c6baf0433b8fc79928b545eab44ac6f0e22f0 100644 (file)
--- a/src/common/stream.cpp
+++ b/src/common/stream.cpp
@@ -917,7 +917,7 @@ bool wxInputStream::ReadAll(void *buffer_, size_t size)
 {
     char* buffer = static_cast<char*>(buffer_);
 
-    m_lastcount = 0;
+    size_t totalCount = 0;
 
     for ( ;; )
     {
@@ -928,7 +928,7 @@ bool wxInputStream::ReadAll(void *buffer_, size_t size)
         if ( !lastCount )
             break;
 
-        m_lastcount += lastCount;
+        totalCount += lastCount;
 
         // ... Or if an error occurred on the stream.
         if ( !IsOk() )
@@ -939,14 +939,19 @@ bool wxInputStream::ReadAll(void *buffer_, size_t size)
         // "==" test, but be safe and avoid overflowing size even in case of
         // bugs in LastRead()).
         if ( lastCount >= size )
-            return true;
+        {
+            size = 0;
+            break;
+        }
 
         // Advance the buffer before trying to read the rest of data.
         size -= lastCount;
         buffer += lastCount;
     }
 
-    return false;
+    m_lastcount = totalCount;
+
+    return size == 0;
 }
 
 wxFileOffset wxInputStream::SeekI(wxFileOffset pos, wxSeekMode mode)
@@ -1071,7 +1076,7 @@ bool wxOutputStream::WriteAll(const void *buffer_, size_t size)
     // This exactly mirrors ReadAll(), see there for more comments.
     const char* buffer = static_cast<const char*>(buffer_);
 
-    m_lastcount = 0;
+    size_t totalCount = 0;
 
     for ( ;; )
     {
@@ -1079,19 +1084,23 @@ bool wxOutputStream::WriteAll(const void *buffer_, size_t size)
         if ( !lastCount )
             break;
 
-        m_lastcount += lastCount;
+        totalCount += lastCount;
 
         if ( !IsOk() )
             break;
 
         if ( lastCount >= size )
-            return true;
+        {
+            size = 0;
+            break;
+        }
 
         size -= lastCount;
         buffer += lastCount;
     }
 
-    return false;
+    m_lastcount = totalCount;
+    return size == 0;
 }
 
 wxFileOffset wxOutputStream::TellO() const
@@ -1117,22 +1126,23 @@ IMPLEMENT_DYNAMIC_CLASS(wxCountingOutputStream, wxOutputStream)
 
 wxCountingOutputStream::wxCountingOutputStream ()
 {
-     m_currentPos = 0;
+    m_currentPos =
+    m_lastPos = 0;
 }
 
 wxFileOffset wxCountingOutputStream::GetLength() const
 {
-    return m_lastcount;
+    return m_lastPos;
 }
 
 size_t wxCountingOutputStream::OnSysWrite(const void *WXUNUSED(buffer),
                                           size_t size)
 {
     m_currentPos += size;
-    if (m_currentPos > m_lastcount)
-        m_lastcount = m_currentPos;
+    if ( m_currentPos > m_lastPos )
+        m_lastPos = m_currentPos;
 
-    return m_currentPos;
+    return size;
 }
 
 wxFileOffset wxCountingOutputStream::OnSysSeek(wxFileOffset pos, wxSeekMode mode)
@@ -1146,12 +1156,12 @@ wxFileOffset wxCountingOutputStream::OnSysSeek(wxFileOffset pos, wxSeekMode mode
             break;
 
         case wxFromEnd:
-            new_pos = m_lastcount + new_pos;
-            wxCHECK_MSG( (wxFileOffset)new_pos == (wxFileOffset)(m_lastcount + pos), wxInvalidOffset, wxT("huge position not supported") );
+            new_pos += m_lastPos;
+            wxCHECK_MSG( (wxFileOffset)new_pos == (wxFileOffset)(m_lastPos + pos), wxInvalidOffset, wxT("huge position not supported") );
             break;
 
         case wxFromCurrent:
-            new_pos = m_currentPos + new_pos;
+            new_pos += m_currentPos;
             wxCHECK_MSG( (wxFileOffset)new_pos == (wxFileOffset)(m_currentPos + pos), wxInvalidOffset, wxT("huge position not supported") );
             break;
 
@@ -1162,8 +1172,8 @@ wxFileOffset wxCountingOutputStream::OnSysSeek(wxFileOffset pos, wxSeekMode mode
 
     m_currentPos = new_pos;
 
-    if (m_currentPos > m_lastcount)
-        m_lastcount = m_currentPos;
+    if ( m_currentPos > m_lastPos )
+        m_lastPos = m_currentPos;
 
     return m_currentPos;
 }