added im_meta_remove

ChangeLog

@@ -22,6 +22,7 @@
 - "invalidate" is careful to keep images alive, so invalidate callbacks can do
   im_close()
 - flood_blob could loop if start point == ink
+- added im_meta_remove()
 
 26/11/09 started 7.20.3
 - updated en_GB.po translation 

TODO

@@ -3,6 +3,15 @@
 
   we'd need to have coordinate transforms broken out for this :-( 
 
+- vipsthumbnail should have an option to delete the profile from the final
+  jpg? handy if you want all your profiles in eg. sRGB
+
+- try writing docs for vipsthumbnail with gtkdoc? then try header etc.
+
+- rename header, edvips as vipsheader, vipsedit
+
+  maybe have back compat links?
+
 - should im_rwcheck() copy to disc?
 
   maybe im_rwcheck_disc() copies to im->filename and maps that

libvips/include/vips/meta.h

@@ -107,6 +107,7 @@ int im_blob_set( GValue *value, im_callback_fn free_fn,
 	void *data, size_t length ); 
 
 int im_meta_set( IMAGE *, const char *field, GValue * );
+gboolean im_meta_remove( IMAGE *im, const char *field );
 int im_meta_get( IMAGE *, const char *field, GValue * );
 GType im_meta_get_typeof( IMAGE *im, const char *field );
 

libvips/iofuncs/meta.c

@@ -71,8 +71,6 @@
 #include <unistd.h>
 #endif /*HAVE_UNISTD_H*/
 
-#include <assert.h>
-
 #include <vips/vips.h>
 #include <vips/internal.h>
 
@@ -245,14 +243,14 @@ void
 im__meta_destroy( IMAGE *im )
 {
 	IM_FREEF( g_hash_table_destroy, im->Meta );
-	assert( !im->Meta_traverse );
+	g_assert( !im->Meta_traverse );
 }
 
 static void
 meta_init( IMAGE *im )
 {
 	if( !im->Meta ) {
-		assert( !im->Meta_traverse );
+		g_assert( !im->Meta_traverse );
 		im->Meta = g_hash_table_new_full( g_str_hash, g_str_equal,
 			NULL, (GDestroyNotify) meta_free );
 	}
@@ -338,8 +336,8 @@ im_meta_set( IMAGE *im, const char *field, GValue *value )
 {
 	Meta *meta;
 
-	assert( field );
-	assert( value );
+	g_assert( field );
+	g_assert( value );
 
 	meta_init( im );
 	if( !(meta = meta_new( im, field, value )) )
@@ -352,6 +350,28 @@ im_meta_set( IMAGE *im, const char *field, GValue *value )
 	return( 0 );
 }
 
+/**
+ * im_meta_remove:
+ * @im: image to test
+ * @field: the name to search for
+ *
+ * Find and remove an item of metadata. Return %FALSE if no metadata of that
+ * name was found.
+ *
+ * See also: im_meta_set(), im_meta_get_typeof().
+ *
+ * Returns: %TRUE if an item of metadata of that name was found and removed
+ */
+gboolean
+im_meta_remove( IMAGE *im, const char *field )
+{
+	if( im->Meta && 
+		g_hash_table_remove( im->Meta, field ) )
+		return( TRUE );
+
+	return( FALSE );
+}
+
 /**
  * im_meta_get:
  * @im: image to get the metadata from
@@ -398,8 +418,8 @@ im_meta_get( IMAGE *im, const char *field, GValue *value_copy )
 {
 	Meta *meta;
 
-	assert( field );
-	assert( value_copy );
+	g_assert( field );
+	g_assert( value_copy );
 
 	/* Defined?
 	 */
@@ -432,7 +452,7 @@ im_meta_get_typeof( IMAGE *im, const char *field )
 {
 	Meta *meta;
 
-	assert( field );
+	g_assert( field );
 
 	/* Defined?
 	 */
@@ -516,7 +536,7 @@ im_save_string_get( const GValue *value )
 void
 im_save_string_set( GValue *value, const char *str )
 {
-	assert( G_VALUE_TYPE( value ) == IM_TYPE_SAVE_STRING );
+	g_assert( G_VALUE_TYPE( value ) == IM_TYPE_SAVE_STRING );
 
 	g_value_set_boxed( value, str );
 }
@@ -535,7 +555,7 @@ im_save_string_setf( GValue *value, const char *fmt, ... )
 	va_list ap;
 	char *str;
 
-	assert( G_VALUE_TYPE( value ) == IM_TYPE_SAVE_STRING );
+	g_assert( G_VALUE_TYPE( value ) == IM_TYPE_SAVE_STRING );
 
 	va_start( ap, fmt );
 	str = g_strdup_vprintf( fmt, ap );
@@ -736,7 +756,7 @@ area_new_blob( im_callback_fn free_fn, void *blob, size_t blob_length )
 static Area *
 area_copy( Area *area )
 {
-	assert( area->count >= 0 );
+	g_assert( area->count >= 0 );
 
 	area->count += 1;
 
@@ -750,7 +770,7 @@ area_copy( Area *area )
 static void
 area_unref( Area *area )
 {
-	assert( area->count > 0 );
+	g_assert( area->count > 0 );
 
 	area->count -= 1;
 
@@ -941,7 +961,7 @@ im_ref_string_set( GValue *value, const char *str )
 	Area *area;
 	char *str_copy;
 
-	assert( G_VALUE_TYPE( value ) == IM_TYPE_REF_STRING );
+	g_assert( G_VALUE_TYPE( value ) == IM_TYPE_REF_STRING );
 
 	if( !(str_copy = im_strdup( NULL, str )) )
 		return( -1 );
@@ -1182,7 +1202,7 @@ im_blob_set( GValue *value,
 {
 	Area *area;
 
-	assert( G_VALUE_TYPE( value ) == IM_TYPE_BLOB );
+	g_assert( G_VALUE_TYPE( value ) == IM_TYPE_BLOB );
 
 	if( !(area = area_new_blob( free_fn, blob, blob_length )) )
 		return( -1 );

libvipsCC/VImage.cc

@@ -325,13 +325,18 @@ void VImage::meta_set( const char *field, GValue *value ) throw( VError )
 		verror();
 }
 
+gboolean VImage::meta_remove( const char *field ) 
+{
+	return( im_meta_remove( _ref->im, field ) );
+}
+
 void VImage::meta_get( const char *field, GValue *value_copy ) throw( VError )
 {
 	if( im_meta_get( _ref->im, field, value_copy ) )
 		verror();
 }
 
-GType VImage::meta_get_typeof( const char *field ) throw( VError )
+GType VImage::meta_get_typeof( const char *field ) 
 {
 	return( im_meta_get_typeof( _ref->im, field ) );
 }

libvipsCC/include/vips/VImage.h

@@ -255,9 +255,12 @@ public:
 	// we don't wrap GValue, so we can't wrap these for now
 	void meta_set( const char *field, GValue *value ) throw( VError );
 	void meta_get( const char *field, GValue *value_copy ) throw( VError );
-	GType meta_get_typeof( const char *field ) throw( VError );
 #endif /*SWIG*/
 
+	// We can wrap these, fwiw
+	gboolean meta_remove( const char *field );
+	GType meta_get_typeof( const char *field );
+
 	// convenience functions
 	int meta_get_int( const char *field ) throw( VError );
 	double meta_get_double( const char *field ) throw( VError );

tools/iofuncs/vipsthumbnail.c

@@ -26,6 +26,7 @@ static int thumbnail_size = 128;
 static char *thumbnail_format = "tn_%s.jpg";
 static char *export_profile = NULL;
 static char *import_profile = NULL;
+static gboolean delete_profile = FALSE;
 
 static GOptionEntry options[] = {
 	{ "size", 's', 0, G_OPTION_ARG_INT, &thumbnail_size, 
@@ -38,6 +39,8 @@ static GOptionEntry options[] = {
 		N_( "export with profile P" ), "P" },
 	{ "iprofile", 'i', 0, G_OPTION_ARG_STRING, &import_profile, 
 		N_( "import untagged images with profile P" ), "P" },
+	{ "delete", 'd', 0, G_OPTION_ARG_NONE, &delete_profile, 
+		N_( "delete profile from exported image" ), NULL },
 	{ "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, 
 		N_( "verbose output" ), NULL },
 	{ NULL }
@@ -253,6 +256,11 @@ shrink_factor( IMAGE *in, IMAGE *out )
 		x = t[6];
 	}
 
+	if( delete_profile ) {
+		if( im_meta_remove( x, IM_META_ICC_NAME ) && verbose )
+			printf( "deleting profile from output image\n" );
+	}
+
 	if( im_copy( x, out ) )
 		return( -1 );