Code

trying to fix the filters placement
[inkscape.git] / src / style.cpp
index 1d4384c4ca7ef869eecd5b962a177cdbdbf7c4e7..ad4e509f6c0ca9129ebbaa350c9a35b7e16b0c5b 100644 (file)
@@ -1,9 +1,9 @@
 #define __SP_STYLE_C__
 
-/** \file
- * SVG stylesheets implementation.
- *
- * Authors:
+/** @file
+ * @brief SVG stylesheets implementation.
+ */
+/* Authors:
  *   Lauris Kaplinski <lauris@kaplinski.com>
  *   Peter Moulder <pmoulder@mail.csse.monash.edu.au>
  *   bulia byak <buliabyak@users.sf.net>
 #include "style.h"
 #include "svg/css-ostringstream.h"
 #include "xml/repr.h"
+#include "xml/simple-document.h"
 #include "unit-constants.h"
 #include "2geom/isnan.h"
 #include "macros.h"
+#include "preferences.h"
 
 #include "sp-filter-reference.h"
 
@@ -790,15 +792,33 @@ sp_style_read_from_object(SPStyle *style, SPObject *object)
 
 
 /**
- * Read style properties from repr only.
+ * Read style properties from preferences.
+ * @param style The style to write to
+ * @param path Preferences directory from which the style should be read
  */
 void
-sp_style_read_from_repr(SPStyle *style, Inkscape::XML::Node *repr)
+sp_style_read_from_prefs(SPStyle *style, Glib::ustring const &path)
 {
     g_return_if_fail(style != NULL);
-    g_return_if_fail(repr != NULL);
+    g_return_if_fail(path != "");
+    
+    Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 
-    sp_style_read(style, NULL, repr);
+    // not optimal: we reconstruct the node based on the prefs, then pass it to
+    // sp_style_read for actual processing.
+    Inkscape::XML::SimpleDocument *tempdoc = new Inkscape::XML::SimpleDocument;
+    Inkscape::XML::Node *tempnode = tempdoc->createElement("temp");
+    
+    std::vector<Inkscape::Preferences::Entry> attrs = prefs->getAllEntries(path);
+    for (std::vector<Inkscape::Preferences::Entry>::iterator i = attrs.begin(); i != attrs.end(); ++i) {
+        tempnode->setAttribute(i->getEntryName().data(), i->getString().data());
+    }
+
+    sp_style_read(style, NULL, tempnode);
+    
+    Inkscape::GC::release(tempnode);
+    Inkscape::GC::release(tempdoc);
+    delete tempdoc;
 }
 
 
@@ -2016,9 +2036,6 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
 
         if (!style->filter.set || style->filter.inherit)
         {
-            // FIXME:
-            // instead of just copying over, we need to _really merge_ the two filters by combining their
-            // filter primitives
             sp_style_merge_ifilter(style, &parent->filter);
         }
 
@@ -2163,6 +2180,10 @@ sp_style_merge_ipaint(SPStyle *style, SPIPaint *paint, SPIPaint const *parent)
 static void
 sp_style_merge_ifilter(SPStyle *style, SPIFilter const *parent)
 {
+    // FIXME:
+    // instead of just copying over, we need to _really merge_ the two filters by combining their
+    // filter primitives
+
     sp_style_filter_clear(style);
     style->filter.set = parent->set;
     style->filter.inherit = parent->inherit;
@@ -2170,7 +2191,13 @@ sp_style_merge_ifilter(SPStyle *style, SPIFilter const *parent)
     if (style->filter.href && style->filter.href->getObject())
        style->filter.href->detach();
 
-    if (style->filter.href && parent->href) {
+    // it may be that this style has not yet created its SPFilterReference
+    if (!style->filter.href && style->object && SP_OBJECT_DOCUMENT(style->object)) {
+            style->filter.href = new SPFilterReference(SP_OBJECT_DOCUMENT(style->object));
+            style->filter.href->changedSignal().connect(sigc::bind(sigc::ptr_fun(sp_style_filter_ref_changed), style));
+    }
+
+    if (style->filter.href && parent->href && parent->href->getObject()) {
         try {
             style->filter.href->attach(*parent->href->getURI());
         } catch (Inkscape::BadURIException &e) {
@@ -2227,8 +2254,14 @@ sp_style_write_string(SPStyle const *const style, guint const flags)
     p += sp_style_write_ienum(p, c + BMAX - p, "text-anchor", enum_text_anchor, &style->text_anchor, NULL, flags);
 
     /// \todo fixme: Per type methods need default flag too (lauris)
-    p += sp_style_write_iscale24(p, c + BMAX - p, "opacity", &style->opacity, NULL, flags);
-    p += sp_style_write_ipaint(p, c + BMAX - p, "color", &style->color, NULL, flags);
+
+    if (style->opacity.value != SP_SCALE24_MAX) {
+        p += sp_style_write_iscale24(p, c + BMAX - p, "opacity", &style->opacity, NULL, flags);
+    }
+
+    if (!style->color.noneSet) { // CSS does not permit "none" for color
+        p += sp_style_write_ipaint(p, c + BMAX - p, "color", &style->color, NULL, flags);
+    }
 
     p += sp_style_write_ipaint(p, c + BMAX - p, "fill", &style->fill, NULL, flags);
     // if fill:none, skip writing fill properties
@@ -2290,24 +2323,30 @@ sp_style_write_string(SPStyle const *const style, guint const flags)
         }
     }
 
+    bool marker_none = false;
+    gchar *master = style->marker[SP_MARKER_LOC].value;
     if (style->marker[SP_MARKER_LOC].set) {
         p += g_snprintf(p, c + BMAX - p, "marker:%s;", style->marker[SP_MARKER_LOC].value);
     } else if (flags == SP_STYLE_FLAG_ALWAYS) {
         p += g_snprintf(p, c + BMAX - p, "marker:none;");
+        marker_none = true;
     }
-    if (style->marker[SP_MARKER_LOC_START].set) {
+    if (style->marker[SP_MARKER_LOC_START].set 
+       && (!master || strcmp(master, style->marker[SP_MARKER_LOC_START].value))) {
         p += g_snprintf(p, c + BMAX - p, "marker-start:%s;", style->marker[SP_MARKER_LOC_START].value);
-    } else if (flags == SP_STYLE_FLAG_ALWAYS) {
+    } else if (flags == SP_STYLE_FLAG_ALWAYS && !marker_none) {
         p += g_snprintf(p, c + BMAX - p, "marker-start:none;");
     }
-    if (style->marker[SP_MARKER_LOC_MID].set) {
+    if (style->marker[SP_MARKER_LOC_MID].set
+       && (!master || strcmp(master, style->marker[SP_MARKER_LOC_MID].value))) {
         p += g_snprintf(p, c + BMAX - p, "marker-mid:%s;", style->marker[SP_MARKER_LOC_MID].value);
-    } else if (flags == SP_STYLE_FLAG_ALWAYS) {
+    } else if (flags == SP_STYLE_FLAG_ALWAYS && !marker_none) {
         p += g_snprintf(p, c + BMAX - p, "marker-mid:none;");
     }
-    if (style->marker[SP_MARKER_LOC_END].set) {
+    if (style->marker[SP_MARKER_LOC_END].set
+       && (!master || strcmp(master, style->marker[SP_MARKER_LOC_END].value))) {
         p += g_snprintf(p, c + BMAX - p, "marker-end:%s;", style->marker[SP_MARKER_LOC_END].value);
-    } else if (flags == SP_STYLE_FLAG_ALWAYS) {
+    } else if (flags == SP_STYLE_FLAG_ALWAYS && !marker_none) {
         p += g_snprintf(p, c + BMAX - p, "marker-end:none;");
     }
 
@@ -2378,7 +2417,10 @@ sp_style_write_difference(SPStyle const *const from, SPStyle const *const to)
     if (from->opacity.set && from->opacity.value != SP_SCALE24_MAX) {
         p += sp_style_write_iscale24(p, c + BMAX - p, "opacity", &from->opacity, &to->opacity, SP_STYLE_FLAG_IFSET);
     }
-    p += sp_style_write_ipaint(p, c + BMAX - p, "color", &from->color, &to->color, SP_STYLE_FLAG_IFSET);
+
+    if (!from->color.noneSet) { // CSS does not permit "none" for color
+        p += sp_style_write_ipaint(p, c + BMAX - p, "color", &from->color, &to->color, SP_STYLE_FLAG_IFSET);
+    }
 
     p += sp_style_write_ipaint(p, c + BMAX - p, "fill", &from->fill, &to->fill, SP_STYLE_FLAG_IFDIFF);
     // if fill:none, skip writing fill properties
@@ -2433,16 +2475,17 @@ sp_style_write_difference(SPStyle const *const from, SPStyle const *const to)
     }
 
     /* markers */
-    if (from->marker[SP_MARKER_LOC].value != NULL) {
-        p += g_snprintf(p, c + BMAX - p, "marker:%s;",       from->marker[SP_MARKER_LOC].value);
+    gchar *master = from->marker[SP_MARKER_LOC].value;
+    if (master != NULL) {
+        p += g_snprintf(p, c + BMAX - p, "marker:%s;", master);
     }
-    if (from->marker[SP_MARKER_LOC_START].value != NULL) {
+    if (from->marker[SP_MARKER_LOC_START].value != NULL && (!master || strcmp(master, from->marker[SP_MARKER_LOC_START].value))) {
         p += g_snprintf(p, c + BMAX - p, "marker-start:%s;", from->marker[SP_MARKER_LOC_START].value);
     }
-    if (from->marker[SP_MARKER_LOC_MID].value != NULL) {
+    if (from->marker[SP_MARKER_LOC_MID].value != NULL && (!master || strcmp(master, from->marker[SP_MARKER_LOC_MID].value))) {
         p += g_snprintf(p, c + BMAX - p, "marker-mid:%s;",   from->marker[SP_MARKER_LOC_MID].value);
     }
-    if (from->marker[SP_MARKER_LOC_END].value != NULL) {
+    if (from->marker[SP_MARKER_LOC_END].value != NULL && (!master || strcmp(master, from->marker[SP_MARKER_LOC_END].value))) {
         p += g_snprintf(p, c + BMAX - p, "marker-end:%s;",   from->marker[SP_MARKER_LOC_END].value);
     }
 
@@ -2488,12 +2531,18 @@ sp_style_clear(SPStyle *style)
     style->stroke.clear();
     sp_style_filter_clear(style);
 
-    if (style->fill.value.href)
+    if (style->fill.value.href) {
         delete style->fill.value.href;
-    if (style->stroke.value.href)
+        style->fill.value.href = NULL;
+    }
+    if (style->stroke.value.href) {
         delete style->stroke.value.href;
-    if (style->filter.href)
+        style->stroke.value.href = NULL;
+    }
+    if (style->filter.href) {
         delete style->filter.href;
+        style->filter.href = NULL;
+    }
 
     if (style->stroke_dash.dash) {
         g_free(style->stroke_dash.dash);
@@ -3800,13 +3849,15 @@ sp_style_set_property_url (SPObject *item, gchar const *property, SPObject *link
 
     if (repr == NULL) return;
 
-    g_return_if_fail(linked != NULL);
-
-    gchar *val = g_strdup_printf("url(#%s)", SP_OBJECT_ID(linked));
-
     SPCSSAttr *css = sp_repr_css_attr_new();
-    sp_repr_css_set_property(css, property, val);
-    g_free(val);
+    if (linked) {
+        gchar *val = g_strdup_printf("url(#%s)", SP_OBJECT_ID(linked));
+        sp_repr_css_set_property(css, property, val);
+        g_free(val);
+    } else {
+        sp_repr_css_unset_property(css, "filter");
+    }
+
     if (recursive) {
         sp_repr_css_change_recursive(repr, css, "style");
     } else {
@@ -3993,6 +4044,7 @@ sp_css_attr_unset_uris(SPCSSAttr *css)
     if (is_url(sp_repr_css_property(css, "color-profile", NULL))) sp_repr_css_set_property(css, "color-profile", NULL);
     if (is_url(sp_repr_css_property(css, "cursor", NULL))) sp_repr_css_set_property(css, "cursor", NULL);
     if (is_url(sp_repr_css_property(css, "filter", NULL))) sp_repr_css_set_property(css, "filter", NULL);
+    if (is_url(sp_repr_css_property(css, "marker", NULL))) sp_repr_css_set_property(css, "marker", NULL);
     if (is_url(sp_repr_css_property(css, "marker-start", NULL))) sp_repr_css_set_property(css, "marker-start", NULL);
     if (is_url(sp_repr_css_property(css, "marker-mid", NULL))) sp_repr_css_set_property(css, "marker-mid", NULL);
     if (is_url(sp_repr_css_property(css, "marker-end", NULL))) sp_repr_css_set_property(css, "marker-end", NULL);