svg-filters branch merged back to head

(bzr r1252)

1 files changed, 201 insertions, 0 deletions

diff --git a/src/sp-gaussian-blur.cpp b/src/sp-gaussian-blur.cpp
new file mode 100644
index 000000000..0e26fbbf4
--- /dev/null
+++ b/src/sp-gaussian-blur.cpp
@@ -0,0 +1,201 @@
+#define __SP_GAUSSIANBLUR_CPP__
+
+/** \file
+ * SVG <gaussianBlur> implementation.
+ *
+ */
+/*
+ * Authors:
+ *   hugo Rodrigues <haa.rodrigues@gmail.com>
+ *
+ * Copyright (C) 2006 Hugo Rodrigues
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "attributes.h"
+#include "svg/svg.h"
+#include "sp-gaussian-blur.h"
+#include "xml/repr.h"
+
+//#define SP_MACROS_SILENT
+//#include "macros.h"
+
+#define DEBUG_GAUSSIANBLUR
+#ifdef DEBUG_GAUSSIANBLUR
+# define debug(f, a...) { g_print("%s(%d) %s:", \
+                                  __FILE__,__LINE__,__FUNCTION__); \
+                          g_print(f, ## a); \
+                          g_print("\n"); \
+                        }
+#else
+# define debug(f, a...) /**/
+#endif
+
+/* GaussianBlur base class */
+
+static void sp_gaussianBlur_class_init(SPGaussianBlurClass *klass);
+static void sp_gaussianBlur_init(SPGaussianBlur *gaussianBlur);
+
+static void sp_gaussianBlur_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
+static void sp_gaussianBlur_release(SPObject *object);
+static void sp_gaussianBlur_set(SPObject *object, unsigned int key, gchar const *value);
+static void sp_gaussianBlur_update(SPObject *object, SPCtx *ctx, guint flags);
+static Inkscape::XML::Node *sp_gaussianBlur_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
+
+static SPObjectClass *gaussianBlur_parent_class;
+
+GType
+sp_gaussianBlur_get_type()
+{
+    static GType gaussianBlur_type = 0;
+
+    if (!gaussianBlur_type) {
+        GTypeInfo gaussianBlur_info = {
+            sizeof(SPGaussianBlurClass),
+            NULL, NULL,
+            (GClassInitFunc) sp_gaussianBlur_class_init,
+            NULL, NULL,
+            sizeof(SPGaussianBlur),
+            16,
+            (GInstanceInitFunc) sp_gaussianBlur_init,
+            NULL,    /* value_table */
+        };
+        gaussianBlur_type = g_type_register_static(SP_TYPE_OBJECT, "SPGaussianBlur", &gaussianBlur_info, (GTypeFlags)0);
+    }
+    return gaussianBlur_type;
+}
+
+static void
+sp_gaussianBlur_class_init(SPGaussianBlurClass *klass)
+{
+    SPObjectClass *sp_object_class = (SPObjectClass *)klass;
+
+    gaussianBlur_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass);
+
+    sp_object_class->build = sp_gaussianBlur_build;
+    sp_object_class->release = sp_gaussianBlur_release;
+    sp_object_class->write = sp_gaussianBlur_write;
+    sp_object_class->set = sp_gaussianBlur_set;
+    sp_object_class->update = sp_gaussianBlur_update;
+}
+
+static void
+sp_gaussianBlur_init(SPGaussianBlur *gaussianBlur)
+{
+    debug("0x%p",gaussianBlur);
+
+//    gaussianBlur->stdDeviation = 1;
+}
+
+/**
+ * Reads the Inkscape::XML::Node, and initializes SPGaussianBlur variables.  For this to get called,
+ * our name must be associated with a repr via "sp_object_type_register".  Best done through
+ * sp-object-repr.cpp's repr_name_entries array.
+ */
+static void
+sp_gaussianBlur_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
+{
+    debug("0x%p",object);
+    if (((SPObjectClass *) gaussianBlur_parent_class)->build) {
+        ((SPObjectClass *) gaussianBlur_parent_class)->build(object, document, repr);
+    }
+
+    sp_object_read_attr(object, "stdDeviation");
+
+}
+
+/**
+ * Drops any allocated memory.
+ */
+static void
+sp_gaussianBlur_release(SPObject *object)
+{
+    debug("0x%p",object);
+
+    if (((SPObjectClass *) gaussianBlur_parent_class)->release)
+        ((SPObjectClass *) gaussianBlur_parent_class)->release(object);
+}
+
+/**
+ * Sets a specific value in the SPGaussianBlur.
+ */
+static void
+sp_gaussianBlur_set(SPObject *object, unsigned int key, gchar const *value)
+{
+    debug("0x%p %s(%u): '%s'",object,
+            sp_attribute_name(key),key,value);
+    SPGaussianBlur *gaussianBlur = SP_GAUSSIANBLUR(object);
+
+    switch(key) {
+	case SP_ATTR_STDDEVIATION:
+		gaussianBlur->stdDeviation.set(value);
+            break;
+        default:
+            if (((SPObjectClass *) gaussianBlur_parent_class)->set)
+                ((SPObjectClass *) gaussianBlur_parent_class)->set(object, key, value);
+            break;
+    }
+
+}
+
+/**
+ * Receives update notifications.
+ */
+static void
+sp_gaussianBlur_update(SPObject *object, SPCtx *ctx, guint flags)
+{
+    debug("0x%p",object);
+
+    if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG |
+                 SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) {
+
+        /* do something to trigger redisplay, updates? */
+
+    }
+
+    if (((SPObjectClass *) gaussianBlur_parent_class)->update) {
+        ((SPObjectClass *) gaussianBlur_parent_class)->update(object, ctx, flags);
+    }
+}
+
+/**
+ * Writes its settings to an incoming repr object, if any.
+ */
+static Inkscape::XML::Node *
+sp_gaussianBlur_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
+{
+    debug("0x%p",object);
+
+    // Inkscape-only object, not copied during an "plain SVG" dump:
+    if (flags & SP_OBJECT_WRITE_EXT) {
+        if (repr) {
+            // is this sane?
+            repr->mergeFrom(SP_OBJECT_REPR(object), "id");
+        } else {
+            repr = SP_OBJECT_REPR(object)->duplicate();
+        }
+    }
+
+    if (((SPObjectClass *) gaussianBlur_parent_class)->write) {
+        ((SPObjectClass *) gaussianBlur_parent_class)->write(object, repr, flags);
+    }
+
+    return repr;
+}
+
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :