Modified filter rendering area handling to better accommodate upcoming feOffset

[inkscape.git] / src / sp-filter.cpp

diff --git a/src/sp-filter.cpp b/src/sp-filter.cpp
index c60ffb44f7c60cf30822804cfe52f294c45f841b..2b1b94b1fa9c32782fe0b978c2501cb3ea39be29 100644 (file)
--- a/src/sp-filter.cpp
+++ b/src/sp-filter.cpp
@@ -6,8 +6,9 @@
 /*
  * Authors:
  *   Hugo Rodrigues <haa.rodrigues@gmail.com>
+ *   Niko Kiirala <niko@kiirala.com>
  *
- * Copyright (C) 2006 Hugo Rodrigues
+ * Copyright (C) 2006,2007 Authors
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
@@ -16,6 +17,11 @@
 # include "config.h"
 #endif
 
+#include <map>
+#include <string.h>
+using std::map;
+using std::pair;
+
 #include "attributes.h"
 #include "document.h"
 #include "sp-filter.h"
@@ -26,6 +32,7 @@
 #define SP_MACROS_SILENT
 #include "macros.h"
 
+#include "display/nr-filter.cpp"
 
 /* Filter base class */
 
@@ -36,9 +43,9 @@ static void sp_filter_build(SPObject *object, SPDocument *document, Inkscape::XM
 static void sp_filter_release(SPObject *object);
 static void sp_filter_set(SPObject *object, unsigned int key, gchar const *value);
 static void sp_filter_update(SPObject *object, SPCtx *ctx, guint flags);
-static void sp_filter_child_added(SPObject *object,\r
-                                    Inkscape::XML::Node *child,\r
-                                    Inkscape::XML::Node *ref);\r
+static void sp_filter_child_added(SPObject *object,
+                                    Inkscape::XML::Node *child,
+                                    Inkscape::XML::Node *ref);
 static void sp_filter_remove_child(SPObject *object, Inkscape::XML::Node *child);
 static Inkscape::XML::Node *sp_filter_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
 
@@ -81,7 +88,7 @@ sp_filter_class_init(SPFilterClass *klass)
     sp_object_class->write = sp_filter_write;
     sp_object_class->set = sp_filter_set;
     sp_object_class->update = sp_filter_update;
-    sp_object_class->child_added = sp_filter_child_added;\r
+    sp_object_class->child_added = sp_filter_child_added;
     sp_object_class->remove_child = sp_filter_remove_child;
 }
 
@@ -106,6 +113,9 @@ sp_filter_init(SPFilter *filter)
     filter->_primitives = new SPFilterPrimitive*[1];
     filter->_primitives[0] = NULL;
 
+    filter->_renderer = NULL;
+    
+    filter->_image_name = map<gchar *, int, ltstr>();
 }
 
 /**
@@ -269,7 +279,7 @@ sp_filter_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
     SPFilter *filter = SP_FILTER(object);
 
     if (!repr) {
-        repr = SP_OBJECT_REPR(object)->duplicate();
+        repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME
     }
 
     if ((flags & SP_OBJECT_WRITE_ALL) || filter->filterUnits_set) {
@@ -422,6 +432,59 @@ sp_filter_remove_child(SPObject *object, Inkscape::XML::Node *child)
        */
 }
 
+void sp_filter_build_renderer(SPFilter *sp_filter, NR::Filter *nr_filter)
+{
+    g_assert(sp_filter != NULL);
+    g_assert(nr_filter != NULL);
+
+    sp_filter->_renderer = nr_filter;
+
+    nr_filter->set_x(sp_filter->x);
+    nr_filter->set_y(sp_filter->y);
+    nr_filter->set_width(sp_filter->width);
+    nr_filter->set_height(sp_filter->height);
+
+    nr_filter->clear_primitives();
+    for (int i = 0 ; i < sp_filter->_primitive_count ; i++) {
+        SPFilterPrimitive *primitive = sp_filter->_primitives[i];
+        g_assert(primitive != NULL);
+        if (((SPFilterPrimitiveClass*) G_OBJECT_GET_CLASS(primitive))->build_renderer) {
+            ((SPFilterPrimitiveClass *) G_OBJECT_GET_CLASS(primitive))->build_renderer(primitive, nr_filter);
+        } else {
+            g_warning("Cannot build filter renderer: missing builder");
+        }
+    }
+}
+
+int sp_filter_primitive_count(SPFilter *filter) {
+    g_assert(filter != NULL);
+    return filter->_primitive_count;
+}
+
+int sp_filter_get_image_name(SPFilter *filter, gchar const *name) {
+    gchar *name_copy = strdup(name);
+    map<gchar *, int, ltstr>::iterator result = filter->_image_name.find(name_copy);
+    free(name_copy);
+    if (result == filter->_image_name.end()) return -1;
+    else return (*result).second;
+}
+
+int sp_filter_set_image_name(SPFilter *filter, gchar const *name) {
+    int value = filter->_image_number_next;
+    filter->_image_number_next++;
+    gchar *name_copy = strdup(name);
+    pair<map<gchar*,int,ltstr>::iterator,bool> ret = filter->_image_name.insert(pair<gchar*,int>(name_copy, value));
+    if (ret.second == false) {
+        return (*ret.first).second;
+    }
+    return value;
+}
+
+bool ltstr::operator()(const char* s1, const char* s2) const
+{
+    return strcmp(s1, s2) < 0;
+}
+
 
 /*
   Local Variables: