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Merge and cleanup of GSoC C++-ification project.
[inkscape.git] / src / sp-font.cpp
diff --git a/src/sp-font.cpp b/src/sp-font.cpp
index de272c72faf86eeaa27a7fe6c70104626db52404..64f7bd481162cfc4930b6c7b7249b71bde341d98 100644 (file)
--- a/src/sp-font.cpp
+++ b/src/sp-font.cpp
@@ -9,6 +9,7 @@
  *
  * Author:
  *   Felipe C. da S. Sanches <juca@members.fsf.org>
+ *   Abhishek Sharma
  *
  * Copyright (C) 2008, Felipe C. da S. Sanches
  *
@@ -21,7 +22,6 @@
 #include "sp-glyph.h"
 #include "sp-missing-glyph.h"
 #include "document.h"
-#include "helper-fns.h"
 
 #include "display/nr-svgfonts.h"
 
@@ -79,15 +79,21 @@ static void sp_font_class_init(SPFontClass *fc)
     sp_object_class->update = sp_font_update;
 }
 
+//I think we should have extra stuff here and in the set method in order to set default value as specified at http://www.w3.org/TR/SVG/fonts.html
+
+// TODO determine better values and/or make these dynamic:
+double FNT_DEFAULT_ADV = 90; // TODO determine proper default
+double FNT_DEFAULT_ASCENT = 90; // TODO determine proper default
+double FNT_UNITS_PER_EM = 90; // TODO determine proper default
+
 static void sp_font_init(SPFont *font)
 {
     font->horiz_origin_x = 0;
     font->horiz_origin_y = 0;
-    font->horiz_adv_x = 0;
-//I think we should have extra stuff here and in the set method in order to set default value as specified at http://www.w3.org/TR/SVG/fonts.html
-    font->vert_origin_x = 0;
-    font->vert_origin_y = 0;
-    font->vert_adv_y = 0;
+    font->horiz_adv_x = FNT_DEFAULT_ADV;
+    font->vert_origin_x = FNT_DEFAULT_ADV / 2.0;
+    font->vert_origin_y = FNT_DEFAULT_ASCENT;
+    font->vert_adv_y = FNT_UNITS_PER_EM;
 }
 
 static void sp_font_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)
@@ -96,14 +102,14 @@ static void sp_font_build(SPObject *object, SPDocument *document, Inkscape::XML:
         ((SPObjectClass *) (parent_class))->build(object, document, repr);
     }
 
-    sp_object_read_attr(object, "horiz-origin-x");
-    sp_object_read_attr(object, "horiz-origin-y");
-    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");
+    object->readAttr( "horiz-origin-x" );
+    object->readAttr( "horiz-origin-y" );
+    object->readAttr( "horiz-adv-x" );
+    object->readAttr( "vert-origin-x" );
+    object->readAttr( "vert-origin-y" );
+    object->readAttr( "vert-adv-y" );
 
-    sp_document_add_resource(document, "font", object);
+    document->addResource("font", object);
 }
 
 
@@ -145,7 +151,7 @@ sp_font_remove_child(SPObject *object, Inkscape::XML::Node *child)
 static void sp_font_release(SPObject *object)
 {
     //SPFont *font = SP_FONT(object);
-    sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "font", object);
+    SP_OBJECT_DOCUMENT(object)->removeResource("font", object);
 
     if (((SPObjectClass *) parent_class)->release) {
         ((SPObjectClass *) parent_class)->release(object);
@@ -155,51 +161,63 @@ static void sp_font_release(SPObject *object)
 static void sp_font_set(SPObject *object, unsigned int key, const gchar *value)
 {
     SPFont *font = SP_FONT(object);
-    double number;
 
+    // TODO these are floating point, so some epsilon comparison would be good
     switch (key) {
         case SP_ATTR_HORIZ_ORIGIN_X:
-            number = helperfns_read_number(value);
+        {
+            double number = value ? g_ascii_strtod(value, 0) : 0;
             if (number != font->horiz_origin_x){
                 font->horiz_origin_x = number;
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
+        }
         case SP_ATTR_HORIZ_ORIGIN_Y:
-            number = helperfns_read_number(value);
+        {
+            double number = value ? g_ascii_strtod(value, 0) : 0;
             if (number != font->horiz_origin_y){
                 font->horiz_origin_y = number;
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
+        }
         case SP_ATTR_HORIZ_ADV_X:
-            number = helperfns_read_number(value);
+        {
+            double number = value ? g_ascii_strtod(value, 0) : FNT_DEFAULT_ADV;
             if (number != font->horiz_adv_x){
                 font->horiz_adv_x = number;
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
+        }
         case SP_ATTR_VERT_ORIGIN_X:
-            number = helperfns_read_number(value);
+        {
+            double number = value ? g_ascii_strtod(value, 0) : FNT_DEFAULT_ADV / 2.0;
             if (number != font->vert_origin_x){
                 font->vert_origin_x = number;
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
+        }
         case SP_ATTR_VERT_ORIGIN_Y:
-            number = helperfns_read_number(value);
+        {
+            double number = value ? g_ascii_strtod(value, 0) : FNT_DEFAULT_ASCENT;
             if (number != font->vert_origin_y){
                 font->vert_origin_y = number;
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
+        }
         case SP_ATTR_VERT_ADV_Y:
-            number = helperfns_read_number(value);
+        {
+            double number = value ? g_ascii_strtod(value, 0) : FNT_UNITS_PER_EM;
             if (number != font->vert_adv_y){
                 font->vert_adv_y = number;
                 object->requestModified(SP_OBJECT_MODIFIED_FLAG);
             }
             break;
+        }
         default:
             if (((SPObjectClass *) (parent_class))->set) {
                 ((SPObjectClass *) (parent_class))->set(object, key, value);
@@ -215,12 +233,12 @@ static void
 sp_font_update(SPObject *object, SPCtx *ctx, guint flags)
 {
     if (flags & (SP_OBJECT_MODIFIED_FLAG)) {
-        sp_object_read_attr(object, "horiz-origin-x");
-        sp_object_read_attr(object, "horiz-origin-y");
-        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");
+        object->readAttr( "horiz-origin-x" );
+        object->readAttr( "horiz-origin-y" );
+        object->readAttr( "horiz-adv-x" );
+        object->readAttr( "vert-origin-x" );
+        object->readAttr( "vert-origin-y" );
+        object->readAttr( "vert-adv-y" );
     }
 
     if (((SPObjectClass *) parent_class)->update) {
@@ -246,12 +264,14 @@ static Inkscape::XML::Node *sp_font_write(SPObject *object, Inkscape::XML::Docum
     sp_repr_set_svg_double(repr, "vert-adv-y", font->vert_adv_y);
 
     if (repr != SP_OBJECT_REPR(object)) {
-        COPY_ATTR(repr, object->repr, "horiz-origin-x");
-        COPY_ATTR(repr, object->repr, "horiz-origin-y");
-        COPY_ATTR(repr, object->repr, "horiz-adv-x");
-        COPY_ATTR(repr, object->repr, "vert-origin-x");
-        COPY_ATTR(repr, object->repr, "vert-origin-y");
-        COPY_ATTR(repr, object->repr, "vert-adv-y");
+        // All the below COPY_ATTR funtions are directly using 
+        //  the XML Tree while they shouldn't
+        COPY_ATTR(repr, object->getRepr(), "horiz-origin-x");
+        COPY_ATTR(repr, object->getRepr(), "horiz-origin-y");
+        COPY_ATTR(repr, object->getRepr(), "horiz-adv-x");
+        COPY_ATTR(repr, object->getRepr(), "vert-origin-x");
+        COPY_ATTR(repr, object->getRepr(), "vert-origin-y");
+        COPY_ATTR(repr, object->getRepr(), "vert-adv-y");
     }
 
     if (((SPObjectClass *) (parent_class))->write) {
OpenSource vector graphics editor (BZR clone)