fix the incoherence pointed out by ifacecheck between wx docs, that documents usage...

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

diff --git a/src/common/imagpnm.cpp b/src/common/imagpnm.cpp
index 15b611ee645777adb64fdd40a9b5fed792d7193e..85fbdc08a9b45991ff8b825284cea2129d3694c9 100644 (file)
--- a/src/common/imagpnm.cpp
+++ b/src/common/imagpnm.cpp
@@ -20,9 +20,9 @@
 
 #ifndef WX_PRECOMP
     #include "wx/intl.h"
+    #include "wx/log.h"
 #endif
 
-#include "wx/log.h"
 #include "wx/txtstrm.h"
 
 //-----------------------------------------------------------------------------
@@ -96,6 +96,8 @@ bool wxPNMHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose
         for (wxUint32 i=0; i<size; ++i)
         {
             value=text_stream.Read32();
+            if ( maxval != 255 )
+                value = (255 * value)/maxval;
             *ptr++=(unsigned char)value; // R
             *ptr++=(unsigned char)value; // G
             *ptr++=(unsigned char)value; // B
@@ -114,6 +116,8 @@ bool wxPNMHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose
             //this is very slow !!!
             //I wonder how we can make any better ?
             value=text_stream.Read32();
+            if ( maxval != 255 )
+                value = (255 * value)/maxval;
             *ptr++=(unsigned char)value;
 
             if ( !buf_stream )
@@ -130,6 +134,8 @@ bool wxPNMHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose
         for (wxUint32 i=0; i<size; ++i)
         {
             buf_stream.Read(&value,1);
+            if ( maxval != 255 )
+                value = (255 * value)/maxval;
             *ptr++=value; // R
             *ptr++=value; // G
             *ptr++=value; // B
@@ -140,8 +146,16 @@ bool wxPNMHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose
             }
         }
     }
-    if (c=='6') // Raw RGB
-      buf_stream.Read( ptr, 3*width*height );
+
+    if ( c=='6' ) // Raw RGB
+    {
+        buf_stream.Read(ptr, 3*width*height);
+        if ( maxval != 255 )
+        {
+            for ( unsigned i = 0; i < 3*width*height; i++ )
+                ptr[i] = (255 * ptr[i])/maxval;
+        }
+    }
 
     image->SetMask( false );
 
@@ -184,4 +198,4 @@ bool wxPNMHandler::DoCanRead( wxInputStream& stream )
 
 #endif // wxUSE_STREAMS
 
-#endif // wxUSE_PNM
+#endif // wxUSE_IMAGE && wxUSE_PNM