Code

Connector tool: make connectors avoid the convex hull of shapes.
[inkscape.git] / src / sp-glyph.cpp
index eab219f51bfd4313731a98dbf32a6a028c6c79ad..37e266da046e17f9b89a669c4d45c6ede30da13a 100644 (file)
@@ -1,10 +1,15 @@
-#define __SP_ANCHOR_C__
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef ENABLE_SVG_FONTS
+#define __SP_GLYPH_C__
 
 /*
  * SVG <glyph> element implementation
  *
  * Author:
- *   Felipe C. da S. Sanches <felipe.sanches@gmail.com>
+ *   Felipe C. da S. Sanches <juca@members.fsf.org>
  *
  * Copyright (C) 2008, Felipe C. da S. Sanches
  *
@@ -15,6 +20,7 @@
 #include "attributes.h"
 #include "sp-glyph.h"
 #include "document.h"
+#include "helper-fns.h"
 
 static void sp_glyph_class_init(SPGlyphClass *gc);
 static void sp_glyph_init(SPGlyph *glyph);
@@ -22,7 +28,8 @@ static void sp_glyph_init(SPGlyph *glyph);
 static void sp_glyph_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);
 static void sp_glyph_release(SPObject *object);
 static void sp_glyph_set(SPObject *object, unsigned int key, const gchar *value);
-static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Node *repr, guint flags);
+static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
+static void sp_glyph_update(SPObject *object, SPCtx *ctx, guint flags);
 
 static SPObjectClass *parent_class;
 
@@ -53,22 +60,24 @@ static void sp_glyph_class_init(SPGlyphClass *gc)
 {
     SPObjectClass *sp_object_class = (SPObjectClass *) gc;
 
-    parent_class = (SPObjectClass *) g_type_class_ref(SP_TYPE_OBJECT);
+    parent_class = (SPObjectClass*)g_type_class_peek_parent(gc);
 
     sp_object_class->build = sp_glyph_build;
     sp_object_class->release = sp_glyph_release;
     sp_object_class->set = sp_glyph_set;
     sp_object_class->write = sp_glyph_write;
+    sp_object_class->update = sp_glyph_update;
 }
 
 static void sp_glyph_init(SPGlyph *glyph)
 {
 //TODO: correct these values:
-    glyph->unicode = NULL;
-    glyph->glyph_name = NULL;
+
+    new (&glyph->unicode) Glib::ustring();
+    new (&glyph->glyph_name) Glib::ustring();
     glyph->d = NULL;
-    glyph->orientation = NULL;
-    glyph->arabic_form = NULL;
+    glyph->orientation = GLYPH_ORIENTATION_BOTH;
+    glyph->arabic_form = GLYPH_ARABIC_FORM_INITIAL;
     glyph->lang = NULL;
     glyph->horiz_adv_x = 0;
     glyph->vert_origin_x = 0;
@@ -103,67 +112,83 @@ static void sp_glyph_release(SPObject *object)
     }
 }
 
-//ToDo: use helper-fns.h
-inline double helperfns_read_number(gchar const *value) {
-    if (!value) return 0;
-    char *end;
-    double ret = g_ascii_strtod(value, &end);
-    if (*end) {
-        g_warning("Unable to convert \"%s\" to number", value);
-        // We could leave this out, too. If strtod can't convert
-        // anything, it will return zero.
-        ret = 0;
+static glyphArabicForm sp_glyph_read_arabic_form(gchar const *value){
+    if (!value) return GLYPH_ARABIC_FORM_INITIAL; //TODO: verify which is the default default (for me, the spec is not clear)
+    switch(value[0]){
+        case 'i':
+            if (strncmp(value, "initial", 7) == 0) return GLYPH_ARABIC_FORM_INITIAL;
+            if (strncmp(value, "isolated", 8) == 0) return GLYPH_ARABIC_FORM_ISOLATED;
+            break;
+        case 'm':
+            if (strncmp(value, "medial", 6) == 0) return GLYPH_ARABIC_FORM_MEDIAL;
+            break;
+        case 't':
+            if (strncmp(value, "terminal", 8) == 0) return GLYPH_ARABIC_FORM_TERMINAL;
+            break;
     }
-    return ret;
+    return GLYPH_ARABIC_FORM_INITIAL; //TODO: VERIFY DEFAULT!
+}
+
+static glyphOrientation sp_glyph_read_orientation(gchar const *value){
+    if (!value) return GLYPH_ORIENTATION_BOTH;
+    switch(value[0]){
+        case 'h':
+            return GLYPH_ORIENTATION_HORIZONTAL;
+            break;
+        case 'v':
+            return GLYPH_ORIENTATION_VERTICAL;
+            break;
+    }
+//ERROR? TODO: VERIFY PROPER ERROR HANDLING
+    return GLYPH_ORIENTATION_BOTH;
 }
 
 static void sp_glyph_set(SPObject *object, unsigned int key, const gchar *value)
 {
     SPGlyph *glyph = SP_GLYPH(object);
     double number;
+    glyphOrientation orient;
+    glyphArabicForm form;
 
     switch (key) {
         case SP_ATTR_UNICODE:
-            if (glyph->unicode) g_free(glyph->unicode);
-            glyph->unicode = g_strdup(value);
+            glyph->unicode.clear();
+            if (value) glyph->unicode.append(value);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-g_warning("SP_ATTR_UNICODE: %s", value);
-             break;
+            break;
         case SP_ATTR_GLYPH_NAME:
-            if (glyph->glyph_name) g_free(glyph->glyph_name);
-            glyph->glyph_name = g_strdup(value);
+            glyph->glyph_name.clear();
+            if (value) glyph->glyph_name.append(value);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-g_warning("SP_ATTR_GLYPH_NAME: %s", value);
-             break;
+            break;
         case SP_ATTR_D:
             if (glyph->d) g_free(glyph->d);
             glyph->d = g_strdup(value);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-g_warning("SP_ATTR_D: %s", value);
             break;
         case SP_ATTR_ORIENTATION:
-            if (glyph->orientation) g_free(glyph->orientation);
-            glyph->orientation = g_strdup(value);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-g_warning("SP_ATTR_ORIENTATION: %s", value);
+            orient = sp_glyph_read_orientation(value);
+            if (glyph->orientation != orient){
+                glyph->orientation = orient;
+                object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
             break;
         case SP_ATTR_ARABIC_FORM:
-            if (glyph->arabic_form) g_free(glyph->arabic_form);
-            glyph->arabic_form = g_strdup(value);
-            object->requestModified(SP_OBJECT_MODIFIED_FLAG);
-g_warning("SP_ATTR_ARABIC_FORM: %s", value);
+            form = sp_glyph_read_arabic_form(value);
+            if (glyph->arabic_form != form){
+                glyph->arabic_form = form;
+                object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            }
             break;
         case SP_ATTR_LANG:
             if (glyph->lang) g_free(glyph->lang);
             glyph->lang = g_strdup(value);
-g_warning("SP_ATTR_LANG: %s", value);
             object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             break;
        case SP_ATTR_HORIZ_ADV_X:
             number = helperfns_read_number(value);
             if (number != glyph->horiz_adv_x){
                 glyph->horiz_adv_x = number;
-g_warning("SP_ATTR_HORIZ_ADV_X: %f", number);
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
@@ -171,7 +196,6 @@ g_warning("SP_ATTR_HORIZ_ADV_X: %f", number);
             number = helperfns_read_number(value);
             if (number != glyph->vert_origin_x){
                 glyph->vert_origin_x = number;
-g_warning("SP_ATTR_VERT_ORIGIN_X: %f", number);
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
@@ -179,7 +203,6 @@ g_warning("SP_ATTR_VERT_ORIGIN_X: %f", number);
             number = helperfns_read_number(value);
             if (number != glyph->vert_origin_y){
                 glyph->vert_origin_y = number;
-g_warning("SP_ATTR_VERT_ORIGIN_Y: %f", number);
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
@@ -187,7 +210,6 @@ g_warning("SP_ATTR_VERT_ORIGIN_Y: %f", number);
             number = helperfns_read_number(value);
             if (number != glyph->vert_adv_y){
                 glyph->vert_adv_y = number;
-g_warning("SP_ATTR_VERT_ADV_Y: %f", number);
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
@@ -199,28 +221,56 @@ g_warning("SP_ATTR_VERT_ADV_Y: %f", number);
     }
 }
 
+/**
+ *  * Receives update notifications.
+ *   */
+static void
+sp_glyph_update(SPObject *object, SPCtx *ctx, guint flags)
+{
+    SPGlyph *glyph = SP_GLYPH(object);
+    (void)glyph;
+
+    if (flags & SP_OBJECT_MODIFIED_FLAG) {
+        /* do something to trigger redisplay, updates? */
+            sp_object_read_attr(object, "unicode");
+            sp_object_read_attr(object, "glyph-name");
+            sp_object_read_attr(object, "d");
+            sp_object_read_attr(object, "orientation");
+            sp_object_read_attr(object, "arabic-form");
+            sp_object_read_attr(object, "lang");
+            sp_object_read_attr(object, "horiz-adv-x");
+            sp_object_read_attr(object, "vert-origin-x");
+            sp_object_read_attr(object, "vert-origin-y");
+            sp_object_read_attr(object, "vert-adv-y");
+    }
+
+    if (((SPObjectClass *) parent_class)->update) {
+        ((SPObjectClass *) parent_class)->update(object, ctx, flags);
+    }
+}
+
 #define COPY_ATTR(rd,rs,key) (rd)->setAttribute((key), rs->attribute(key));
 
-static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Node *repr, guint flags)
+static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
 {
-    SPGlyph *glyph = SP_GLYPH(object);
+//    SPGlyph *glyph = SP_GLYPH(object);
 
     if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
-        Inkscape::XML::Document *xml_doc = sp_document_repr_doc(SP_OBJECT_DOCUMENT(object));
         repr = xml_doc->createElement("svg:glyph");
     }
 
+/* I am commenting out this part because I am not certain how does it work. I will have to study it later. Juca
     repr->setAttribute("unicode", glyph->unicode);
     repr->setAttribute("glyph-name", glyph->glyph_name);
     repr->setAttribute("d", glyph->d);
-    repr->setAttribute("orientation", glyph->orientation);
-    repr->setAttribute("arabic-form", glyph->arabic_form);
+    sp_repr_set_svg_double(repr, "orientation", (double) glyph->orientation);
+    sp_repr_set_svg_double(repr, "arabic-form", (double) glyph->arabic_form);
     repr->setAttribute("lang", glyph->lang);
     sp_repr_set_svg_double(repr, "horiz-adv-x", glyph->horiz_adv_x);
     sp_repr_set_svg_double(repr, "vert-origin-x", glyph->vert_origin_x);
     sp_repr_set_svg_double(repr, "vert-origin-y", glyph->vert_origin_y);
     sp_repr_set_svg_double(repr, "vert-adv-y", glyph->vert_adv_y);
-
+*/
     if (repr != SP_OBJECT_REPR(object)) {
         COPY_ATTR(repr, object->repr, "unicode");
         COPY_ATTR(repr, object->repr, "glyph-name");
@@ -235,12 +285,12 @@ static Inkscape::XML::Node *sp_glyph_write(SPObject *object, Inkscape::XML::Node
     }
 
     if (((SPObjectClass *) (parent_class))->write) {
-        ((SPObjectClass *) (parent_class))->write(object, repr, flags);
+        ((SPObjectClass *) (parent_class))->write(object, xml_doc, repr, flags);
     }
 
     return repr;
 }
-
+#endif //#ifdef ENABLE_SVG_FONTS
 /*
   Local Variables:
   mode:c++