added wxConvFileName which is a variable, not define as wxConvFile; added comments...

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

diff --git a/src/common/imagjpeg.cpp b/src/common/imagjpeg.cpp
index 76d85bf4f65f9bb40199c17834ef825ee628d3da..776a84482befe92bf1e3483630c5cfeeb0743285 100644 (file)
--- a/src/common/imagjpeg.cpp
+++ b/src/common/imagjpeg.cpp
@@ -4,7 +4,7 @@
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) Vaclav Slavik
-// Licence:     wxWidgets licence
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
@@ -28,7 +28,7 @@
 #include "wx/log.h"
 #include "wx/app.h"
 
-// NB: Some compilers define boolean type in Windows headers 
+// 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
@@ -226,7 +226,7 @@ bool wxJPEGHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos
       (cinfo.src->term_source)(&cinfo);
       jpeg_destroy_decompress(&cinfo);
       if (image->Ok()) image->Destroy();
-      return FALSE;
+      return false;
     }
 
     jpeg_create_decompress( &cinfo );
@@ -239,9 +239,9 @@ bool wxJPEGHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos
     if (!image->Ok()) {
         jpeg_finish_decompress( &cinfo );
         jpeg_destroy_decompress( &cinfo );
-        return FALSE;
+        return false;
     }
-    image->SetMask( FALSE );
+    image->SetMask( false );
     ptr = image->GetData();
     stride = cinfo.output_width * 3;
     tempbuf = (*cinfo.mem->alloc_sarray)
@@ -254,7 +254,7 @@ bool wxJPEGHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos
     }
     jpeg_finish_decompress( &cinfo );
     jpeg_destroy_decompress( &cinfo );
-    return TRUE;
+    return true;
 }
 
 typedef struct {
@@ -338,7 +338,7 @@ bool wxJPEGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
          if (verbose)
             wxLogError(_("JPEG: Couldn't save image."));
          jpeg_destroy_compress(&cinfo);
-         return FALSE;
+         return false;
     }
 
     jpeg_create_compress(&cinfo);
@@ -356,22 +356,41 @@ bool wxJPEGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
     // 'Quality' is a number between 0 (terrible) and 100 (very good).
     // The default (in jcparam.c, jpeg_set_defaults) is 75,
     // and force_baseline is TRUE.
-    if (image->HasOption(wxT("quality")))
-        jpeg_set_quality(&cinfo, image->GetOptionInt(wxT("quality")), TRUE);
+    if (image->HasOption(wxIMAGE_OPTION_QUALITY))
+        jpeg_set_quality(&cinfo, image->GetOptionInt(wxIMAGE_OPTION_QUALITY), TRUE);
+
+    // set the resolution fields in the output file
+    UINT16 resX,
+           resY;
+    if ( image->HasOption(wxIMAGE_OPTION_RESOLUTIONX) &&
+         image->HasOption(wxIMAGE_OPTION_RESOLUTIONY) )
+    {
+        resX = (UINT16)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONX);
+        resY = (UINT16)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONY);
+    }
+    else if ( image->HasOption(wxIMAGE_OPTION_RESOLUTION) )
+    {
+        resX =
+        resY = (UINT16)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTION);
+    }
+    else
+    {
+        resX =
+        resY = 0;
+    }
 
-    // sets the resolution fields in the output file
-    if (image->HasOption(wxIMAGE_OPTION_RESOLUTION))
+    if ( resX && resY )
     {
-        cinfo.X_density = 
-        cinfo.Y_density = image->GetOptionInt(wxIMAGE_OPTION_RESOLUTION);
+        cinfo.X_density = resX;
+        cinfo.Y_density = resY;
     }
 
     // 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))
+    if ( image->HasOption(wxIMAGE_OPTION_RESOLUTIONUNIT) )
     {
-        cinfo.density_unit = image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONUNIT);
+        cinfo.density_unit = (UINT8)image->GetOptionInt(wxIMAGE_OPTION_RESOLUTIONUNIT);
     }
 
     jpeg_start_compress(&cinfo, TRUE);
@@ -385,7 +404,7 @@ bool wxJPEGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
     jpeg_finish_compress(&cinfo);
     jpeg_destroy_compress(&cinfo);
 
-    return TRUE;
+    return true;
 }
 
 #ifdef __VISUALC__
@@ -397,7 +416,7 @@ bool wxJPEGHandler::DoCanRead( wxInputStream& stream )
     unsigned char hdr[2];
 
     if ( !stream.Read(hdr, WXSIZEOF(hdr)) )
-        return FALSE;
+        return false;
 
     return hdr[0] == 0xFF && hdr[1] == 0xD8;
 }