moving trunk for module inkscape

(bzr r1)

1 files changed, 178 insertions, 0 deletions

diff --git a/src/sp-string.cpp b/src/sp-string.cpp
new file mode 100644
index 000000000..ba3df3ef2
--- /dev/null
+++ b/src/sp-string.cpp
@@ -0,0 +1,178 @@
+#define __SP_STRING_C__
+
+/*
+ * SVG <text> and <tspan> implementation
+ *
+ * Author:
+ *   Lauris Kaplinski <lauris@kaplinski.com>
+ *
+ * Copyright (C) 1999-2002 Lauris Kaplinski
+ * Copyright (C) 2000-2001 Ximian, Inc.
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+/*
+ * fixme:
+ *
+ * These subcomponents should not be items, or alternately
+ * we have to invent set of flags to mark, whether standard
+ * attributes are applicable to given item (I even like this
+ * idea somewhat - Lauris)
+ *
+ */
+
+
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+
+#include "sp-string.h"
+#include "xml/repr.h"
+
+
+/*#####################################################
+#  SPSTRING
+#####################################################*/
+
+static void sp_string_class_init(SPStringClass *classname);
+static void sp_string_init(SPString *string);
+
+static void sp_string_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
+static void sp_string_release(SPObject *object);
+static void sp_string_read_content(SPObject *object);
+static void sp_string_update(SPObject *object, SPCtx *ctx, unsigned flags);
+
+static void sp_string_calculate_dimensions(SPString *string);
+
+static SPObjectClass *string_parent_class;
+
+GType
+sp_string_get_type()
+{
+    static GType type = 0;
+    if (!type) {
+        GTypeInfo info = {
+            sizeof(SPStringClass),
+            NULL,    /* base_init */
+            NULL,    /* base_finalize */
+            (GClassInitFunc) sp_string_class_init,
+            NULL,    /* class_finalize */
+            NULL,    /* class_data */
+            sizeof(SPString),
+            16,    /* n_preallocs */
+            (GInstanceInitFunc) sp_string_init,
+            NULL,    /* value_table */
+        };
+        type = g_type_register_static(SP_TYPE_OBJECT, "SPString", &info, (GTypeFlags)0);
+    }
+    return type;
+}
+
+static void
+sp_string_class_init(SPStringClass *classname)
+{
+    SPObjectClass *sp_object_class;
+    SPItemClass   *item_class;
+
+    sp_object_class = (SPObjectClass *) classname;
+    item_class      = (SPItemClass *) classname;
+
+    string_parent_class = (SPObjectClass*)g_type_class_ref(SP_TYPE_OBJECT);
+
+    sp_object_class->build        = sp_string_build;
+    sp_object_class->release      = sp_string_release;
+    sp_object_class->read_content = sp_string_read_content;
+    sp_object_class->update       = sp_string_update;
+}
+
+static void
+sp_string_init(SPString *string)
+{
+    new (&string->string) Glib::ustring();
+}
+
+static void
+sp_string_build(SPObject *object, SPDocument *doc, Inkscape::XML::Node *repr)
+{
+    sp_string_read_content(object);
+
+    if (((SPObjectClass *) string_parent_class)->build)
+        ((SPObjectClass *) string_parent_class)->build(object, doc, repr);
+}
+
+static void
+sp_string_release(SPObject *object)
+{
+    SPString *string = SP_STRING(object);
+
+    string->string.~ustring();
+
+    if (((SPObjectClass *) string_parent_class)->release)
+        ((SPObjectClass *) string_parent_class)->release(object);
+}
+
+static void
+sp_string_read_content(SPObject *object)
+{
+    SPString *string = SP_STRING(object);
+
+    string->string.clear();
+    gchar const *xml_string = string->repr->content();
+    // see algorithms described in svg 1.1 section 10.15
+    if (object->xml_space.value == SP_XML_SPACE_PRESERVE) {
+        for ( ; *xml_string ; xml_string = g_utf8_next_char(xml_string) ) {
+            gunichar c = g_utf8_get_char(xml_string);
+            if (c == '\n' || c == '\t') c = ' ';
+            string->string += c;
+        }
+    }
+    else {
+        bool whitespace = false;
+        for ( ; *xml_string ; xml_string = g_utf8_next_char(xml_string) ) {
+            gunichar c = g_utf8_get_char(xml_string);
+            if (c == '\n') continue;
+            if (c == ' ' || c == '\t') whitespace = true;
+            else {
+                if (whitespace && (!string->string.empty() || SP_OBJECT_PREV(object) != NULL))
+                    string->string += ' ';
+                string->string += c;
+                whitespace = false;
+            }
+        }
+        if (whitespace && SP_OBJECT_REPR(object)->next() != NULL)   // can't use SP_OBJECT_NEXT() when the SPObject tree is still being built
+            string->string += ' ';
+    }
+    object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+}
+
+static void
+sp_string_update(SPObject *object, SPCtx *ctx, unsigned flags)
+{
+    if (((SPObjectClass *) string_parent_class)->update)
+        ((SPObjectClass *) string_parent_class)->update(object, ctx, flags);
+
+    if (flags & (SP_OBJECT_STYLE_MODIFIED_FLAG | SP_OBJECT_MODIFIED_FLAG)) {
+        /* Parent style or we ourselves changed, so recalculate */
+        flags &= ~SP_OBJECT_USER_MODIFIED_FLAG_B; // won't be "just a transformation" anymore, we're going to recompute "x" and "y" attributes
+        sp_string_calculate_dimensions(SP_STRING(object));
+    }
+}
+
+static void
+sp_string_calculate_dimensions(SPString *)
+{
+}
+
+/*
+  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 :