reintroducing code that initially committed in revision 18594 and the have been reverted on revision 18607.

* implemented handling of font-style, font-variant, font-weight, and 
font-stretch attributes on font-face tags

This have been previously reverted because I thought they were already handled in node->style, but now I see that this code is needed for font description (used in the 
font tag to declare font attributes to be stored in the user agent font database).

The node->style info is used for font specification (used by document authors with the purpose of declaring the properties of fonts that they would like in their SVG 
documents).

(bzr r6023)

1 files changed, 375 insertions, 0 deletions

diff --git a/src/sp-font-face.cpp b/src/sp-font-face.cpp
index 31886b718..2a4716595 100644
--- a/src/sp-font-face.cpp
+++ b/src/sp-font-face.cpp
@@ -54,6 +54,240 @@ private:
     bool isset;
 };
 
+static std::vector<FontFaceStyleType> sp_read_fontFaceStyleType(gchar const *value){
+    std::vector<FontFaceStyleType> v;
+
+    if (!value){
+        v.push_back(SP_FONTFACE_STYLE_ALL);
+        return v;
+    }
+    
+    if (strncmp(value, "all", 3) == 0){
+        value += 3;
+        while(value[0]==',' || value[0]==' ')
+            value++;
+        v.push_back(SP_FONTFACE_STYLE_ALL);
+        return v;
+    }
+
+    while(value[0]!='\0'){
+        switch(value[0]){
+            case 'n':
+                if (strncmp(value, "normal", 6) == 0){
+                    v.push_back(SP_FONTFACE_STYLE_NORMAL);
+                    value += 6;
+                }
+                break;
+            case 'i':
+                if (strncmp(value, "italic", 6) == 0){
+                    v.push_back(SP_FONTFACE_STYLE_ITALIC);
+                    value += 6;
+                }
+                break;
+            case 'o':
+                if (strncmp(value, "oblique", 7) == 0){
+                    v.push_back(SP_FONTFACE_STYLE_OBLIQUE);
+                    value += 7;
+                }
+                break;
+        }
+        while(value[0]==',' || value[0]==' ')
+            value++;
+    }
+    return v;
+}
+
+static std::vector<FontFaceVariantType> sp_read_fontFaceVariantType(gchar const *value){
+    std::vector<FontFaceVariantType> v;
+
+    if (!value){
+        v.push_back(SP_FONTFACE_VARIANT_NORMAL);
+        return v;
+    }
+
+    while(value[0]!='\0'){
+        switch(value[0]){
+            case 'n':
+                if (strncmp(value, "normal", 6) == 0){
+                    v.push_back(SP_FONTFACE_VARIANT_NORMAL);
+                    value += 6;
+                }
+                break;
+            case 's':
+                if (strncmp(value, "small-caps", 10) == 0){
+                    v.push_back(SP_FONTFACE_VARIANT_SMALL_CAPS);
+                    value += 10;
+                }
+                break;
+        }
+        while(value[0]==',' || value[0]==' ')
+            value++;
+    }
+    return v;
+}
+
+static std::vector<FontFaceWeightType> sp_read_fontFaceWeightType(gchar const *value){
+    std::vector<FontFaceWeightType> v;
+
+    if (!value){
+        v.push_back(SP_FONTFACE_WEIGHT_ALL);
+        return v;
+    }
+    
+    if (strncmp(value, "all", 3) == 0){
+        value += 3;
+        while(value[0]==',' || value[0]==' ')
+            value++;
+        v.push_back(SP_FONTFACE_WEIGHT_ALL);
+        return v;
+    }
+
+    while(value[0]!='\0'){
+        switch(value[0]){
+            case 'n':
+                if (strncmp(value, "normal", 6) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_NORMAL);
+                    value += 6;
+                }
+                break;
+            case 'b':
+                if (strncmp(value, "bold", 4) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_BOLD);
+                    value += 4;
+                }
+                break;
+            case '1':
+                if (strncmp(value, "100", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_100);
+                    value += 3;
+                }
+                break;
+            case '2':
+                if (strncmp(value, "200", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_200);
+                    value += 3;
+                }
+                break;
+            case '3':
+                if (strncmp(value, "300", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_300);
+                    value += 3;
+                }
+                break;
+            case '4':
+                if (strncmp(value, "400", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_400);
+                    value += 3;
+                }
+                break;
+            case '5':
+                if (strncmp(value, "500", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_500);
+                    value += 3;
+                }
+                break;
+            case '6':
+                if (strncmp(value, "600", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_600);
+                    value += 3;
+                }
+                break;
+            case '7':
+                if (strncmp(value, "700", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_700);
+                    value += 3;
+                }
+                break;
+            case '8':
+                if (strncmp(value, "800", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_800);
+                    value += 3;
+                }
+                break;
+            case '9':
+                if (strncmp(value, "900", 3) == 0){
+                    v.push_back(SP_FONTFACE_WEIGHT_900);
+                    value += 3;
+                }
+                break;
+        }
+        while(value[0]==',' || value[0]==' ')
+            value++;
+    }
+    return v;
+}
+
+static std::vector<FontFaceStretchType> sp_read_fontFaceStretchType(gchar const *value){
+    std::vector<FontFaceStretchType> v;
+
+    if (!value){
+        v.push_back(SP_FONTFACE_STRETCH_NORMAL);
+        return v;
+    }
+    
+    if (strncmp(value, "all", 3) == 0){
+        value += 3;
+        while(value[0]==',' || value[0]==' ')
+            value++;
+        v.push_back(SP_FONTFACE_STRETCH_ALL);
+        return v;
+    }
+
+    while(value[0]!='\0'){
+        switch(value[0]){
+            case 'n':
+                if (strncmp(value, "normal", 6) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_NORMAL);
+                    value += 6;
+                }
+                break;
+            case 'u':
+                if (strncmp(value, "ultra-condensed", 15) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_ULTRA_CONDENSED);
+                    value += 15;
+                }
+                if (strncmp(value, "ultra-expanded", 14) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_ULTRA_EXPANDED);
+                    value += 14;
+                }
+                break;
+            case 'e':
+                if (strncmp(value, "expanded", 8) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_EXPANDED);
+                    value += 8;
+                }
+                if (strncmp(value, "extra-condensed", 15) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_EXTRA_CONDENSED);
+                    value += 15;
+                }
+                if (strncmp(value, "extra-expanded", 14) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_EXTRA_EXPANDED);
+                    value += 14;
+                }
+                break;
+            case 'c':
+                if (strncmp(value, "condensed", 9) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_CONDENSED);
+                    value += 9;
+                }
+                break;
+            case 's':
+                if (strncmp(value, "semi-condensed", 14) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_SEMI_CONDENSED);
+                    value += 14;
+                }
+                if (strncmp(value, "semi-expanded", 13) == 0){
+                    v.push_back(SP_FONTFACE_STRETCH_SEMI_EXPANDED);
+                    value += 13;
+                }
+                break;
+        }
+        while(value[0]==',' || value[0]==' ')
+            value++;
+    }
+    return v;
+}
+
 static void sp_fontface_class_init(SPFontFaceClass *fc);
 static void sp_fontface_init(SPFontFace *font);
 
@@ -108,7 +342,28 @@ static void sp_fontface_class_init(SPFontFaceClass *fc)
 
 static void sp_fontface_init(SPFontFace *face)
 {
+    std::vector<FontFaceStyleType> style;
+    style.push_back(SP_FONTFACE_STYLE_ALL);
+    face->font_style = style;
+
+    std::vector<FontFaceVariantType> variant;
+    variant.push_back(SP_FONTFACE_VARIANT_NORMAL);
+    face->font_variant = variant;
+
+    std::vector<FontFaceWeightType> weight;
+    weight.push_back(SP_FONTFACE_WEIGHT_ALL);
+    face->font_weight = weight;
+
+    std::vector<FontFaceStretchType> stretch;
+    stretch.push_back(SP_FONTFACE_STRETCH_NORMAL);
+    face->font_stretch = stretch;
 /*
+    face->font_family = NULL;
+    //face->font_style = ;
+    //face->font_variant = ;
+    //face->font_weight = ;
+    //face->font_stretch = ;
+    face->font_size = NULL;
     //face->unicode_range = ;
     face->units_per_em = 1000;
     //face->panose_1 = ;
@@ -145,6 +400,12 @@ static void sp_fontface_build(SPObject *object, SPDocument *document, Inkscape::
         ((SPObjectClass *) (parent_class))->build(object, document, repr);
     }
 
+    sp_object_read_attr(object, "font-family");
+    sp_object_read_attr(object, "font-style");
+    sp_object_read_attr(object, "font-variant");
+    sp_object_read_attr(object, "font-weight");
+    sp_object_read_attr(object, "font-stretch");
+    sp_object_read_attr(object, "font-size");
     sp_object_read_attr(object, "unicode-range");
     sp_object_read_attr(object, "units-per-em");
     sp_object_read_attr(object, "panose-1");
@@ -222,8 +483,104 @@ static void sp_fontface_set(SPObject *object, unsigned int key, const gchar *val
 {
     SPFontFace *face = SP_FONTFACE(object);
     double number;
+    std::vector<FontFaceStyleType> style;
+    std::vector<FontFaceVariantType> variant;
+    std::vector<FontFaceWeightType> weight;
+    std::vector<FontFaceStretchType> stretch;
 
     switch (key) {
+	case SP_PROP_FONT_STYLE:
+            style = sp_read_fontFaceStyleType(value);
+            if (face->font_style.size() != style.size()){
+                face->font_style = style;
+g_warning("<font-face>: SP_ATTR_FONT_STYLE:");
+                for (unsigned int i=0;i<style.size();i++){
+                    g_warning("enum value: %d", style[i]);
+                }
+                object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            } else {
+                for (unsigned int i=0;i<style.size();i++){
+                    if(style[i] != face->font_style[i]){
+                        face->font_style = style;
+g_warning("<font-face>: SP_ATTR_FONT_STYLE:");
+                        for (unsigned int i=0;i<style.size();i++){
+                            g_warning("enum value: %d", style[i]);
+                        }
+                        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+                        break;
+                    }
+                }
+            }
+            break;
+	case SP_PROP_FONT_VARIANT:
+            variant = sp_read_fontFaceVariantType(value);
+            if (face->font_variant.size() != variant.size()){
+                face->font_variant = variant;
+g_warning("<font-face>: SP_ATTR_FONT_VARIANT:");
+                for (unsigned int i=0;i<variant.size();i++){
+                    g_warning("enum value: %d", variant[i]);
+                }
+                object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            } else {
+                for (unsigned int i=0;i<variant.size();i++){
+                    if(variant[i] != face->font_variant[i]){
+                        face->font_variant = variant;
+g_warning("<font-face>: SP_ATTR_FONT_VARIANT:");
+                        for (unsigned int i=0;i<variant.size();i++){
+                            g_warning("- %d", variant[i]);
+                        }
+                        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+                        break;
+                    }
+                }
+            }
+            break;
+	case SP_PROP_FONT_WEIGHT:
+            weight = sp_read_fontFaceWeightType(value);
+            if (face->font_weight.size() != weight.size()){
+                face->font_weight = weight;
+g_warning("<font-face>: SP_ATTR_FONT_WEIGHT:");
+                for (unsigned int i=0;i<weight.size();i++){
+                    g_warning("enum value: %d", weight[i]);
+                }
+                object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            } else {
+                for (unsigned int i=0;i<weight.size();i++){
+                    if(weight[i] != face->font_weight[i]){
+                        face->font_weight = weight;
+g_warning("<font-face>: SP_ATTR_FONT_WEIGHT:");
+                        for (unsigned int i=0;i<weight.size();i++){
+                            g_warning("enum value: %d", weight[i]);
+                        }
+                        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+                        break;
+                    }
+                }
+            }
+            break;
+	case SP_PROP_FONT_STRETCH:
+            stretch = sp_read_fontFaceStretchType(value);
+            if (face->font_stretch.size() != stretch.size()){
+                face->font_stretch = stretch;
+g_warning("<font-face>: SP_ATTR_FONT_STRETCH:");
+                for (unsigned int i=0;i<stretch.size();i++){
+                    g_warning("enum value: %d", stretch[i]);
+                }
+                object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+            } else {
+                for (unsigned int i=0;i<stretch.size();i++){
+                    if(stretch[i] != face->font_stretch[i]){
+                        face->font_stretch = stretch;
+g_warning("<font-face>: SP_ATTR_FONT_STRETCH:");
+                        for (unsigned int i=0;i<stretch.size();i++){
+                            g_warning("enum value: %d", stretch[i]);
+                        }
+                        object->requestModified(SP_OBJECT_MODIFIED_FLAG);
+                        break;
+                    }
+                }
+            }
+            break;
 	case SP_ATTR_UNITS_PER_EM:
             number = helperfns_read_number(value);
             if (number != face->units_per_em){
@@ -423,6 +780,12 @@ static void
 sp_fontface_update(SPObject *object, SPCtx *ctx, guint flags)
 {
     if (flags & (SP_OBJECT_MODIFIED_FLAG)) {
+        sp_object_read_attr(object, "font-family");
+        sp_object_read_attr(object, "font-style");
+        sp_object_read_attr(object, "font-variant");
+        sp_object_read_attr(object, "font-weight");
+        sp_object_read_attr(object, "font-stretch");
+        sp_object_read_attr(object, "font-size");
         sp_object_read_attr(object, "unicode-range");
         sp_object_read_attr(object, "units-per-em");
         sp_object_read_attr(object, "panose-1");
@@ -468,6 +831,12 @@ static Inkscape::XML::Node *sp_fontface_write(SPObject *object, Inkscape::XML::D
     }
 
     //TODO:
+    //sp_repr_set_svg_double(repr, "font-family", face->font_family);
+    //sp_repr_set_svg_double(repr, "font-style", face->font_style);
+    //sp_repr_set_svg_double(repr, "font-variant", face->font_variant);
+    //sp_repr_set_svg_double(repr, "font-weight", face->font_weight);
+    //sp_repr_set_svg_double(repr, "font-stretch", face->font_stretch);
+    //sp_repr_set_svg_double(repr, "font-size", face->font_size);
     //sp_repr_set_svg_double(repr, "unicode-range", face->unicode_range);
     sp_repr_set_svg_double(repr, "units-per-em", face->units_per_em);
     //sp_repr_set_svg_double(repr, "panose-1", face->panose_1);
@@ -497,6 +866,12 @@ static Inkscape::XML::Node *sp_fontface_write(SPObject *object, Inkscape::XML::D
     sp_repr_set_svg_double(repr, "overline-thickness", face->overline_thickness);
 
     if (repr != SP_OBJECT_REPR(object)) {
+        COPY_ATTR(repr, object->repr, "font-family");
+        COPY_ATTR(repr, object->repr, "font-style");
+        COPY_ATTR(repr, object->repr, "font-variant");
+        COPY_ATTR(repr, object->repr, "font-weight");
+        COPY_ATTR(repr, object->repr, "font-stretch");
+        COPY_ATTR(repr, object->repr, "font-size");
         COPY_ATTR(repr, object->repr, "unicode-range");
         COPY_ATTR(repr, object->repr, "units-per-em");
         COPY_ATTR(repr, object->repr, "panose-1");