moving trunk for module inkscape

(bzr r1)

1 files changed, 215 insertions, 0 deletions

diff --git a/src/sp-skeleton.cpp b/src/sp-skeleton.cpp
new file mode 100644
index 000000000..f45ff1fda
--- /dev/null
+++ b/src/sp-skeleton.cpp
@@ -0,0 +1,215 @@
+#define __SP_SKELETON_CPP__
+
+/** \file
+ * SVG <skeleton> implementation, used as an example for a base starting class
+ * when implementing new sp-objects.
+ *
+ * In vi, three global search-and-replaces will let you rename everything
+ * in this and the .h file:
+ *
+ *   :%s/SKELETON/YOURNAME/g
+ *   :%s/Skeleton/Yourname/g
+ *   :%s/skeleton/yourname/g
+ */
+/*
+ * Authors:
+ *   Kees Cook <kees@outflux.net>
+ *
+ * Copyright (C) 2004 Kees Cook
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include "attributes.h"
+#include "sp-skeleton.h"
+#include "xml/repr.h"
+
+#define DEBUG_SKELETON
+#ifdef DEBUG_SKELETON
+# 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
+
+/* Skeleton base class */
+
+static void sp_skeleton_class_init(SPSkeletonClass *klass);
+static void sp_skeleton_init(SPSkeleton *skeleton);
+
+static void sp_skeleton_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
+static void sp_skeleton_release(SPObject *object);
+static void sp_skeleton_set(SPObject *object, unsigned int key, gchar const *value);
+static void sp_skeleton_update(SPObject *object, SPCtx *ctx, guint flags);
+static Inkscape::XML::Node *sp_skeleton_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
+
+static SPObjectClass *skeleton_parent_class;
+
+GType
+sp_skeleton_get_type()
+{
+    static GType skeleton_type = 0;
+
+    if (!skeleton_type) {
+        GTypeInfo skeleton_info = {
+            sizeof(SPSkeletonClass),
+            NULL, NULL,
+            (GClassInitFunc) sp_skeleton_class_init,
+            NULL, NULL,
+            sizeof(SPSkeleton),
+            16,
+            (GInstanceInitFunc) sp_skeleton_init,
+            NULL,    /* value_table */
+        };
+        skeleton_type = g_type_register_static(SP_TYPE_OBJECT, "SPSkeleton", &skeleton_info, (GTypeFlags)0);
+    }
+    return skeleton_type;
+}
+
+static void
+sp_skeleton_class_init(SPSkeletonClass *klass)
+{
+    //GObjectClass *gobject_class = (GObjectClass *)klass;
+    SPObjectClass *sp_object_class = (SPObjectClass *)klass;
+
+    skeleton_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass);
+
+    sp_object_class->build = sp_skeleton_build;
+    sp_object_class->release = sp_skeleton_release;
+    sp_object_class->write = sp_skeleton_write;
+    sp_object_class->set = sp_skeleton_set;
+    sp_object_class->update = sp_skeleton_update;
+}
+
+static void
+sp_skeleton_init(SPSkeleton *skeleton)
+{
+    debug("0x%p",skeleton);
+}
+
+/**
+ * Reads the Inkscape::XML::Node, and initializes SPSkeleton 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_skeleton_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
+{
+    debug("0x%p",object);
+    if (((SPObjectClass *) skeleton_parent_class)->build) {
+        ((SPObjectClass *) skeleton_parent_class)->build(object, document, repr);
+    }
+
+    /*
+       Pay attention to certain settings here
+
+    sp_object_read_attr(object, "xlink:href");
+    sp_object_read_attr(object, "attributeName");
+    sp_object_read_attr(object, "attributeType");
+    sp_object_read_attr(object, "begin");
+    sp_object_read_attr(object, "dur");
+    sp_object_read_attr(object, "end");
+    sp_object_read_attr(object, "min");
+    sp_object_read_attr(object, "max");
+    sp_object_read_attr(object, "restart");
+    sp_object_read_attr(object, "repeatCount");
+    sp_object_read_attr(object, "repeatDur");
+    sp_object_read_attr(object, "fill");
+    */
+}
+
+/**
+ * Drops any allocated memory.
+ */
+static void
+sp_skeleton_release(SPObject *object)
+{
+    debug("0x%p",object);
+
+    /* deal with our children and our selves here */
+
+    if (((SPObjectClass *) skeleton_parent_class)->release)
+        ((SPObjectClass *) skeleton_parent_class)->release(object);
+}
+
+/**
+ * Sets a specific value in the SPSkeleton.
+ */
+static void
+sp_skeleton_set(SPObject *object, unsigned int key, gchar const *value)
+{
+    debug("0x%p %s(%u): '%s'",object,
+            sp_attribute_name(key),key,value);
+    SPSkeleton *skeleton = SP_SKELETON(object);
+
+    /* See if any parents need this value. */
+    if (((SPObjectClass *) skeleton_parent_class)->set) {
+        ((SPObjectClass *) skeleton_parent_class)->set(object, key, value);
+    }
+}
+
+/**
+ * Receives update notifications.
+ */
+static void
+sp_skeleton_update(SPObject *object, SPCtx *ctx, guint flags)
+{
+    debug("0x%p",object);
+    //SPSkeleton *skeleton = SP_SKELETON(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 *) skeleton_parent_class)->update) {
+        ((SPObjectClass *) skeleton_parent_class)->update(object, ctx, flags);
+    }
+}
+
+/**
+ * Writes its settings to an incoming repr object, if any.
+ */
+static Inkscape::XML::Node *
+sp_skeleton_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
+{
+    debug("0x%p",object);
+    //SPSkeleton *skeleton = SP_SKELETON(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 *) skeleton_parent_class)->write) {
+        ((SPObjectClass *) skeleton_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 :