auto array-ize scalars in python

TODO

@@ -2,6 +2,10 @@
 
 	- add more constructors
 
+	- need more writers
+
+	- need operator overloads
+
 	- could import like this:
 
 		from gi.repository import Vips 
@@ -10,23 +14,6 @@
 	  ie. make it a module, not a package, and make it clear that it
 	  modifies Vips rather than adding anything itself
 
-	- need the filename splitter
-
-	- need more writers
-
-	- GBoxed
-
-		from gi.repository import Vips 
-
-		a = Vips.ArrayDouble.new([1,2,3])
-		a.get()
-
-		a = Vips.ArrayInt.new([1,2,3])
-		a.get()
-
-		a = Vips.ArrayImage.new([c, d, e])
-		a.get()
-
 
 
 - can we pick the vipsthumbnail int shrink factor more intelligently?

libvips/iofuncs/init.c

@@ -105,10 +105,10 @@ int vips__leak = 0;
 /**
  * vips_get_argv0:
  *
- * See also: vips_init().
+ * See also: VIPS_INIT().
  *
  * Returns: a pointer to an internal copy of the argv0 string passed to
- * vips_init(). Do not free this value
+ * VIPS_INIT(). Do not free this value
  */
 const char *
 vips_get_argv0( void )

libvips/iofuncs/type.c

@@ -1457,7 +1457,7 @@ vips_value_set_array_object( GValue *value, int n )
 	return( 0 );
 }
 
-/* Make the types we need for basic functioning. Called from init_world().
+/* Make the types we need for basic functioning. Called from vips_init().
  */
 void
 vips__meta_init_types( void )
@@ -1467,6 +1467,7 @@ vips__meta_init_types( void )
 	(void) vips_area_get_type();
 	(void) vips_ref_string_get_type();
 	(void) vips_blob_get_type();
+	(void) vips_array_int_get_type();
 	(void) vips_array_double_get_type();
 	(void) vips_array_image_get_type();
 

python/try4.py

@@ -2,8 +2,8 @@
 
 import sys
 
-import logging
-logging.basicConfig(level = logging.DEBUG)
+#import logging
+#logging.basicConfig(level = logging.DEBUG)
 
 from gi.repository import Vips 
 from vips8 import vips
@@ -14,4 +14,6 @@ b = Vips.Image.new_from_file(sys.argv[2])
 
 c = a.join(b, Vips.Direction.HORIZONTAL, expand = True)
 
-c.write_to_file(sys.argv[3])
+d = c.linear(2, 3)
+
+d.write_to_file(sys.argv[3])

python/vips8/vips.py

@@ -11,6 +11,14 @@ from gi.repository import GObject
 # export GI_TYPELIB_PATH=$VIPSHOME/lib/girepository-1.0
 from gi.repository import Vips 
 
+# start up vips!
+Vips.init(sys.argv[0])
+
+# need the gtypes for the vips array types
+vips_type_array_int = GObject.GType.from_name("VipsArrayInt")
+vips_type_array_double = GObject.GType.from_name("VipsArrayDouble")
+vips_type_array_image = GObject.GType.from_name("VipsArrayImage")
+
 class Error(Exception):
 
     """An error from vips.
@@ -43,6 +51,18 @@ class Argument:
     def set_value(self, value):
         logging.debug('assigning %s to %s' % (value, self.name))
         logging.debug('%s needs a %s' % (self.name, self.prop.value_type))
+        
+        # array-ize some types, if necessary
+        if not isinstance(value, list):
+            if GObject.type_is_a(self.prop.value_type, vips_type_array_int):
+                value = Vips.ArrayInt.new([value])
+            if GObject.type_is_a(self.prop.value_type, vips_type_array_double):
+                value = Vips.ArrayDouble.new([value])
+            if GObject.type_is_a(self.prop.value_type, vips_type_array_image):
+                value = Vips.ArrayImage.new([value])
+
+        logging.debug('assigning %s' % self.prop.value_type)
+
         self.op.props.__setattr__(self.name, value)
 
 def _call_base(name, required, optional, self = None, option_string = None):
@@ -197,6 +217,3 @@ Vips.Error = Error
 Vips.Argument = Argument
 Vips.call = call
 
-# start up vips!
-Vips.init(sys.argv[0])
-