Tweaked the layout sample a bit for wxGridBagSizer

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

diff --git a/src/common/imagjpeg.cpp b/src/common/imagjpeg.cpp
index 23c5e7aa366ea3c8b5f0e3df15c90b4834e6f772..7590cee41733d8362dd54e5a656d8f35642e9b92 100644 (file)
--- a/src/common/imagjpeg.cpp
+++ b/src/common/imagjpeg.cpp
@@ -7,7 +7,7 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation "imagjpeg.h"
 #endif
 
@@ -28,13 +28,14 @@
 #include "wx/log.h"
 #include "wx/app.h"
 
-// NB: Some compilers define boolean type in Windows headers (e.g. Watcom C++).
+// NB: Some compilers define boolean type in Windows headers 
+//     (e.g. Watcom C++, but not Open Watcom).
 //     This causes a conflict with jmorecfg.h header from libjpeg, so we have
 //     to make sure libjpeg won't try to define boolean itself. This is done by
 //     defining HAVE_BOOLEAN.
-#if defined(__WXMSW__) && (defined(__MWERKS__) || defined(__WATCOMC__))
+#if defined(__WXMSW__) && (defined(__MWERKS__) || defined(__DIGITALMARS__) || (defined(__WATCOMC__) && __WATCOMC__ < 1200))
     #define HAVE_BOOLEAN
-    #include <windows.h>
+    #include "wx/msw/wrapwin.h"
 #endif
 
 extern "C"
@@ -177,7 +178,6 @@ void jpeg_wxio_src( j_decompress_ptr cinfo, wxInputStream& infile )
         cinfo->src = (struct jpeg_source_mgr *)
             (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT,
             sizeof(my_source_mgr));
-        src = (my_src_ptr) cinfo->src;
     }
     src = (my_src_ptr) cinfo->src;
     src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */
@@ -356,6 +356,21 @@ bool wxJPEGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
     if (image->HasOption(wxT("quality")))
         jpeg_set_quality(&cinfo, image->GetOptionInt(wxT("quality")), TRUE);
 
+    // sets the resolution fields in the output file
+    if (image->HasOption(wxIMAGE_OPTION_RESOLUTION))
+    {
+        cinfo.X_density = 
+        cinfo.Y_density = image->GetOptionInt(wxIMAGE_OPTION_RESOLUTION);
+    }
+
+    // sets the resolution unit field in the output file
+    // wxIMAGE_RESOLUTION_INCHES for inches
+    // wxIMAGE_RESOLUTION_CM for centimeters
+    if (image->HasOption(wxIMAGE_OPTION_RESOLUTIONUNIT))
+    {
+        cinfo.density_unit = image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONUNIT);
+    }
+
     jpeg_start_compress(&cinfo, TRUE);
 
     stride = cinfo.image_width * 3;    /* JSAMPLEs per row in image_buffer */
@@ -378,9 +393,10 @@ bool wxJPEGHandler::DoCanRead( wxInputStream& stream )
 {
     unsigned char hdr[2];
 
-    stream.Read(hdr, 2);
-    stream.SeekI(-2, wxFromCurrent);
-    return (hdr[0] == 0xFF && hdr[1] == 0xD8);
+    if ( !stream.Read(hdr, WXSIZEOF(hdr)) )
+        return FALSE;
+
+    return hdr[0] == 0xFF && hdr[1] == 0xD8;
 }
 
 #endif   // wxUSE_STREAMS