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diff --git a/src/style.cpp b/src/style.cpp
index e0a1dcc7d2bdaad8a62f85d9c88e61c3baae2c5c..722f1677d6cdbff319a81aafe9b076970dfe0aea 100644 (file)
--- a/src/style.cpp
+++ b/src/style.cpp
#include "xml/croco-node-iface.h"
#include "svg/svg.h"
+#include "svg/svg-color.h"
+#include "svg/svg-icc-color.h"
#include "display/canvas-bpath.h"
#include "attributes.h"
#include "document.h"
#include "extract-uri.h"
-#include "marker-status.h"
#include "uri-references.h"
#include "sp-paint-server.h"
#include "streq.h"
#include "unit-constants.h"
#include "isnan.h"
+#include <sigc++/functors/ptr_fun.h>
+#include <sigc++/adaptors/bind.h>
+
+using Inkscape::CSSOStringStream;
+using std::vector;
+
namespace Inkscape {
/**
static void sp_style_merge_property(SPStyle *style, gint id, gchar const *val);
static void sp_style_merge_ipaint(SPStyle *style, SPIPaint *paint, SPIPaint const *parent);
+static void sp_style_merge_ifilter(SPStyle *style, SPIFilter const *parent);
static void sp_style_read_dash(SPStyle *style, gchar const *str);
static SPTextStyle *sp_text_style_new(void);
@@ -129,6 +137,7 @@ static void sp_style_read_itextdecoration(SPITextDecoration *val, gchar const *s
static void sp_style_read_icolor(SPIPaint *paint, gchar const *str, SPStyle *style, SPDocument *document);
static void sp_style_read_ipaint(SPIPaint *paint, gchar const *str, SPStyle *style, SPDocument *document);
static void sp_style_read_ifontsize(SPIFontSize *val, gchar const *str);
+static void sp_style_read_ifilter(gchar const *str, SPStyle *style, SPDocument *document);
static void sp_style_read_penum(SPIEnum *val, Inkscape::XML::Node *repr, gchar const *key, SPStyleEnum const *dict, bool can_explicitly_inherit);
static void sp_style_read_plength(SPILength *val, Inkscape::XML::Node *repr, gchar const *key);
@@ -144,10 +153,11 @@ static gint sp_style_write_ipaint(gchar *b, gint len, gchar const *key, SPIPaint
static gint sp_style_write_ifontsize(gchar *p, gint len, gchar const *key, SPIFontSize const *val, SPIFontSize const *base, guint flags);
static gint sp_style_write_ilengthornormal(gchar *p, gint const len, gchar const *const key, SPILengthOrNormal const *const val, SPILengthOrNormal const *const base, guint const flags);
static gint sp_style_write_itextdecoration(gchar *p, gint const len, gchar const *const key, SPITextDecoration const *const val, SPITextDecoration const *const base, guint const flags);
+static gint sp_style_write_ifilter(gchar *b, gint len, gchar const *key, SPIFilter const *filter, SPIFilter const *base, guint flags);
-void css2_unescape_unquote (SPIString *val);
+static void sp_style_paint_clear(SPStyle *style, SPIPaint *paint);
-static void sp_style_paint_clear(SPStyle *style, SPIPaint *paint, unsigned hunref, unsigned unset);
+static void sp_style_filter_clear(SPStyle *style);
#define SPS_READ_IENUM_IF_UNSET(v,s,d,i) if (!(v)->set) {sp_style_read_ienum((v), (s), (d), (i));}
#define SPS_READ_PENUM_IF_UNSET(v,r,k,d,i) if (!(v)->set) {sp_style_read_penum((v), (r), (k), (d), (i));}
{NULL, -1}
};
+static SPStyleEnum const enum_enable_background[] = {
+ {"accumulate", SP_CSS_BACKGROUND_ACCUMULATE},
+ {"new", SP_CSS_BACKGROUND_NEW},
+ {NULL, -1}
+};
+
/**
* Release callback.
*/
sp_style_clear(style);
style->cloned = false;
- style->hreffed = false;
- style->listening = false;
+
+ style->fill_hreffed = false;
+ style->stroke_hreffed = false;
+ style->filter_hreffed = false;
+
+ new (&style->release_connection) sigc::connection();
+
+ new (&style->fill_release_connection) sigc::connection();
+ new (&style->fill_modified_connection) sigc::connection();
+
+ new (&style->stroke_release_connection) sigc::connection();
+ new (&style->stroke_modified_connection) sigc::connection();
+
+ new (&style->filter_release_connection) sigc::connection();
+ new (&style->filter_modified_connection) sigc::connection();
return style;
}
SPStyle *style = sp_style_new();
style->object = object;
- g_signal_connect(G_OBJECT(object), "release", G_CALLBACK(sp_style_object_release), style);
+ style->release_connection = object->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_style_object_release), style));
if (object && SP_OBJECT_IS_CLONED(object)) {
style->cloned = true;
style->refcount -= 1;
if (style->refcount < 1) {
- if (style->object)
- g_signal_handlers_disconnect_matched(G_OBJECT(style->object),
- G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, style);
+ style->release_connection.disconnect();
+ style->release_connection.~connection();
if (style->text) sp_text_style_unref(style->text);
- sp_style_paint_clear(style, &style->fill, TRUE, FALSE);
- sp_style_paint_clear(style, &style->stroke, TRUE, FALSE);
+ sp_style_paint_clear(style, &style->fill);
+ sp_style_paint_clear(style, &style->stroke);
+ sp_style_filter_clear(style);
+ style->fill_release_connection.disconnect();
+ style->fill_release_connection.~connection();
+ style->fill_modified_connection.disconnect();
+ style->fill_modified_connection.~connection();
+ style->stroke_release_connection.disconnect();
+ style->stroke_release_connection.~connection();
+ style->stroke_modified_connection.disconnect();
+ style->stroke_modified_connection.~connection();
+ style->filter_modified_connection.disconnect();
+ style->filter_modified_connection.~connection();
+ style->filter_release_connection.disconnect();
+ style->filter_release_connection.~connection();
g_free(style->stroke_dash.dash);
g_free(style);
}
style->cloned = true;
}
- /* 1. Style itself */
+ /* 1. Style attribute */
gchar const *val = repr->attribute("style");
if (val != NULL) {
sp_style_merge_from_style_string(style, val);
val = repr->attribute("font-family");
if (val) {
if (!style->text_private) sp_style_privatize_text(style);
- sp_style_read_istring(&style->text->font_family, val);
- css2_unescape_unquote(&style->text->font_family);
+ gchar *val_unquoted = attribute_unquote(val);
+ sp_style_read_istring(&style->text->font_family, val_unquoted);
+ if (val_unquoted) g_free (val_unquoted);
}
}
+ /* filter effects */
+ if (!style->filter.set) {
+ val = repr->attribute("filter");
+ if (val) {
+ sp_style_read_ifilter(val, style, (object) ? SP_OBJECT_DOCUMENT(object) : NULL);
+ }
+ }
+ SPS_READ_PENUM_IF_UNSET(&style->enable_background, repr,
+ "enable-background", enum_enable_background, true);
+
/* 3. Merge from parent */
if (object) {
if (object->parent) {
/**
* Read style properties from object's repr.
- *
+ *
* 1. Reset existing object style
* 2. Load current effective object style
* 3. Load i attributes from immediate parent (which has to be up-to-date)
/**
- *
+ *
*/
static void
sp_style_privatize_text(SPStyle *style)
/**
* Merge property into style.
- *
+ *
* Should be called in order of highest to lowest precedence.
* E.g. for a single style string, call from the last declaration to the first,
* as CSS says that later declarations override earlier ones.
case SP_PROP_FONT_FAMILY:
if (!style->text_private) sp_style_privatize_text(style);
if (!style->text->font_family.set) {
- sp_style_read_istring(&style->text->font_family, val);
- css2_unescape_unquote (&style->text->font_family);
+ gchar *val_unquoted = attribute_unquote(val);
+ sp_style_read_istring(&style->text->font_family, val_unquoted);
+ if (val_unquoted) g_free (val_unquoted);
}
break;
case SP_PROP_FONT_SIZE:
SPS_READ_IENUM_IF_UNSET(&style->display, val, enum_display, true);
break;
case SP_PROP_OVERFLOW:
- /** \todo
- * FIXME: not supported properly yet, we just read and write it,
+ /** \todo
+ * FIXME: not supported properly yet, we just read and write it,
* but act as if it is always "display".
*/
SPS_READ_IENUM_IF_UNSET(&style->overflow, val, enum_overflow, true);
sp_style_read_iscale24(&style->opacity, val);
}
break;
- /* Filter */
case SP_PROP_ENABLE_BACKGROUND:
- g_warning("Unimplemented style property SP_PROP_ENABLE_BACKGROUND: value: %s", val);
+ SPS_READ_IENUM_IF_UNSET(&style->enable_background, val,
+ enum_enable_background, true);
break;
+ /* Filter */
case SP_PROP_FILTER:
- g_warning("Unimplemented style property SP_PROP_FILTER: value: %s", val);
+ if (!style->filter.set && !style->filter.inherit) {
+ sp_style_read_ifilter(val, style, (style->object) ? SP_OBJECT_DOCUMENT(style->object) : NULL);
+ }
break;
case SP_PROP_FLOOD_COLOR:
g_warning("Unimplemented style property SP_PROP_FLOOD_COLOR: value: %s", val);
case SP_PROP_MARKER:
/* TODO: Call sp_uri_reference_resolve(SPDocument *document, guchar const *uri) */
/* style->marker[SP_MARKER_LOC] = g_quark_from_string(val); */
- marker_status("Setting SP_PROP_MARKER");
if (!style->marker[SP_MARKER_LOC].set) {
g_free(style->marker[SP_MARKER_LOC].value);
style->marker[SP_MARKER_LOC].value = g_strdup(val);
case SP_PROP_MARKER_START:
/* TODO: Call sp_uri_reference_resolve(SPDocument *document, guchar const *uri) */
- marker_status("Setting SP_PROP_MARKER_START");
if (!style->marker[SP_MARKER_LOC_START].set) {
g_free(style->marker[SP_MARKER_LOC_START].value);
style->marker[SP_MARKER_LOC_START].value = g_strdup(val);
break;
case SP_PROP_MARKER_MID:
/* TODO: Call sp_uri_reference_resolve(SPDocument *document, guchar const *uri) */
- marker_status("Setting SP_PROP_MARKER_MID");
if (!style->marker[SP_MARKER_LOC_MID].set) {
g_free(style->marker[SP_MARKER_LOC_MID].value);
style->marker[SP_MARKER_LOC_MID].value = g_strdup(val);
break;
case SP_PROP_MARKER_END:
/* TODO: Call sp_uri_reference_resolve(SPDocument *document, guchar const *uri) */
- marker_status("Setting SP_PROP_MARKER_END");
if (!style->marker[SP_MARKER_LOC_END].set) {
g_free(style->marker[SP_MARKER_LOC_END].value);
style->marker[SP_MARKER_LOC_END].value = g_strdup(val);
static void
sp_style_merge_style_from_decl(SPStyle *const style, CRDeclaration const *const decl)
{
- /** \todo Ensure that property is lcased, as per
+ /** \todo Ensure that property is lcased, as per
* http://www.w3.org/TR/REC-CSS2/syndata.html#q4.
* Should probably be done in libcroco.
*/
unsigned const prop_idx = sp_attribute_lookup(decl->property->stryng->str);
if (prop_idx != SP_ATTR_INVALID) {
- /** \todo
- * effic: Test whether the property is already set before trying to
- * convert to string. Alternatively, set from CRTerm directly rather
+ /** \todo
+ * effic: Test whether the property is already set before trying to
+ * convert to string. Alternatively, set from CRTerm directly rather
* than converting to string.
*/
guchar *const str_value_unsigned = cr_term_to_string(decl->value);
* Check whether we need to register any pseudo-class handlers.
* libcroco has its own default handlers for first-child and lang.
*
- * We probably want handlers for link and arguably visited (though
- * inkscape can't visit links at the time of writing). hover etc.
+ * We probably want handlers for link and arguably visited (though
+ * inkscape can't visit links at the time of writing). hover etc.
* more useful in inkview than the editor inkscape.
*
- * http://www.w3.org/TR/SVG11/styling.html#StylingWithCSS says that
- * the following should be honoured, at least by inkview:
+ * http://www.w3.org/TR/SVG11/styling.html#StylingWithCSS says that
+ * the following should be honoured, at least by inkview:
* :hover, :active, :focus, :visited, :link.
*/
sp_style_merge_from_style_string(SPStyle *const style, gchar const *const p)
{
/*
- * Reference: http://www.w3.org/TR/SVG11/styling.html#StyleAttribute:
- * ``When CSS styling is used, CSS inline style is specified by including
- * semicolon-separated property declarations of the form "name : value"
+ * Reference: http://www.w3.org/TR/SVG11/styling.html#StyleAttribute:
+ * ``When CSS styling is used, CSS inline style is specified by including
+ * semicolon-separated property declarations of the form "name : value"
* within the style attribute''.
*
- * That's fairly ambiguous. Is a `value' allowed to contain semicolons?
- * Why does it say "including", what else is allowed in the style
+ * That's fairly ambiguous. Is a `value' allowed to contain semicolons?
+ * Why does it say "including", what else is allowed in the style
* attribute value?
*/
@@ -1163,7 +1215,7 @@ sp_style_merge_font_size_from_parent(SPIFontSize &child, SPIFontSize const &pare
child.computed = parent.computed;
} else if (child.type == SP_FONT_SIZE_LITERAL) {
/** \todo
- * fixme: SVG and CSS do not specify clearly, whether we should use
+ * fixme: SVG and CSS do not specify clearly, whether we should use
* user or screen coordinates (Lauris)
*/
if (child.value < SP_CSS_FONT_SIZE_SMALLER) {
g_return_if_fail(style != NULL);
/** \todo
- * fixme: Check for existing callers that might pass null parent.
- * This should probably be g_return_if_fail, or else we should make a
- * best attempt to set computed values correctly without having a parent
+ * fixme: Check for existing callers that might pass null parent.
+ * This should probably be g_return_if_fail, or else we should make a
+ * best attempt to set computed values correctly without having a parent
* (i.e., by assuming parent has initial values).
*/
if (!parent)
style->font_weight.computed = parent->font_weight.computed;
} else if (style->font_weight.value == SP_CSS_FONT_WEIGHT_NORMAL) {
/** \todo
- * fixme: This is unconditional, i.e., happens even if parent not
+ * fixme: This is unconditional, i.e., happens even if parent not
* present.
*/
style->font_weight.computed = SP_CSS_FONT_WEIGHT_400;
@@ -1239,15 +1291,15 @@ sp_style_merge_from_parent(SPStyle *const style, SPStyle const *const parent)
// expressible in the current font family, but that's difficult to
// find out, so jumping by 3 seems an appropriate approximation
style->font_weight.computed = (parent_val <= SP_CSS_FONT_WEIGHT_100 + 3
- ? (unsigned)SP_CSS_FONT_WEIGHT_100
- : parent_val - 3);
+ ? (unsigned)SP_CSS_FONT_WEIGHT_100
+ : parent_val - 3);
g_assert(style->font_weight.computed <= (unsigned) SP_CSS_FONT_WEIGHT_900);
} else if (style->font_weight.value == SP_CSS_FONT_WEIGHT_BOLDER) {
unsigned const parent_val = parent->font_weight.computed;
g_assert(parent_val <= SP_CSS_FONT_WEIGHT_900);
style->font_weight.computed = (parent_val >= SP_CSS_FONT_WEIGHT_900 - 3
- ? (unsigned)SP_CSS_FONT_WEIGHT_900
- : parent_val + 3);
+ ? (unsigned)SP_CSS_FONT_WEIGHT_900
+ : parent_val + 3);
g_assert(style->font_weight.computed <= (unsigned) SP_CSS_FONT_WEIGHT_900);
}
@@ -1257,15 +1309,15 @@ sp_style_merge_from_parent(SPStyle *const style, SPStyle const *const parent)
} else if (style->font_stretch.value == SP_CSS_FONT_STRETCH_NARROWER) {
unsigned const parent_val = parent->font_stretch.computed;
style->font_stretch.computed = (parent_val == SP_CSS_FONT_STRETCH_ULTRA_CONDENSED
- ? parent_val
- : parent_val - 1);
+ ? parent_val
+ : parent_val - 1);
g_assert(style->font_stretch.computed <= (unsigned) SP_CSS_FONT_STRETCH_ULTRA_EXPANDED);
} else if (style->font_stretch.value == SP_CSS_FONT_STRETCH_WIDER) {
unsigned const parent_val = parent->font_stretch.computed;
g_assert(parent_val <= SP_CSS_FONT_STRETCH_ULTRA_EXPANDED);
style->font_stretch.computed = (parent_val == SP_CSS_FONT_STRETCH_ULTRA_EXPANDED
- ? parent_val
- : parent_val + 1);
+ ? parent_val
+ : parent_val + 1);
g_assert(style->font_stretch.computed <= (unsigned) SP_CSS_FONT_STRETCH_ULTRA_EXPANDED);
}
if (!style->stroke_dasharray_set && parent->stroke_dasharray_set) {
/** \todo
- * This code looks wrong. Why does the logic differ from the
+ * This code looks wrong. Why does the logic differ from the
* above properties? Similarly dashoffset below.
*/
style->stroke_dash.n_dash = parent->stroke_dash.n_dash;
@@ -1406,6 +1458,15 @@ sp_style_merge_from_parent(SPStyle *const style, SPStyle const *const parent)
style->marker[i].value = g_strdup(parent->marker[i].value);
}
}
+
+ /* Filter effects */
+ if (style->filter.inherit) {
+ sp_style_merge_ifilter(style, &parent->filter);
+ }
+
+ if(style->enable_background.inherit) {
+ style->enable_background.value = parent->enable_background.value;
+ }
}
template <typename T>
SPIPaint &child, SPIPaint const &parent)
{
/** \todo
- * I haven't given this much attention. See comments below about
+ * I haven't given this much attention. See comments below about
* currentColor, colorProfile, and relative URIs.
*/
if (!child.set || child.inherit || child.currentcolor) {
@@ -1476,10 +1537,10 @@ sp_style_merge_rel_enum_prop_from_dying_parent(SPIEnum &child, SPIEnum const &pa
{
child.set = false;
/*
- * Note that this can result in a change in computed value in the
- * rare case that the parent's setting was a no-op (i.e. if the
- * parent's parent's computed value was already ultra-condensed or
- * ultra-expanded). However, I'd guess that the change is for the
+ * Note that this can result in a change in computed value in the
+ * rare case that the parent's setting was a no-op (i.e. if the
+ * parent's parent's computed value was already ultra-condensed or
+ * ultra-expanded). However, I'd guess that the change is for the
* better: I'd guess that if the properties were specified
* relatively, then the intent is to counteract parent's effect.
* I.e. I believe this is the best code even in that case.
@@ -1487,17 +1548,17 @@ sp_style_merge_rel_enum_prop_from_dying_parent(SPIEnum &child, SPIEnum const &pa
} else if (child.value == parent.value) {
/* Leave as is. */
/** \todo
- * It's unclear what to do if style and parent specify the same
- * relative directive (narrower or wider). We can either convert
- * to absolute specification or coalesce to a single relative
+ * It's unclear what to do if style and parent specify the same
+ * relative directive (narrower or wider). We can either convert
+ * to absolute specification or coalesce to a single relative
* request (of half the strength of the original pair).
*
- * Converting to a single level of relative specification is a
- * better choice if the newly-unlinked clone is itself cloned to
- * other contexts (inheriting different font stretchiness): it
+ * Converting to a single level of relative specification is a
+ * better choice if the newly-unlinked clone is itself cloned to
+ * other contexts (inheriting different font stretchiness): it
* would preserve the effect that it will be narrower than
- * the inherited context in each case. The disadvantage is that
- * it will ~certainly affect the computed value of the
+ * the inherited context in each case. The disadvantage is that
+ * it will ~certainly affect the computed value of the
* newly-unlinked clone.
*/
} else {
@@ -1530,7 +1591,7 @@ sp_style_merge_length_prop_from_dying_parent(LengthT &child, LengthT const &pare
case SP_CSS_UNIT_EX:
child.value *= parent_child_em_ratio;
/** \todo
- * fixme: Have separate ex ratio parameter.
+ * fixme: Have separate ex ratio parameter.
* Get x height from libnrtype or pango.
*/
if (!isFinite(child.value)) {
@@ -1605,7 +1666,7 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
/* We do font-size first, to ensure that em size is up-to-date. */
/** \todo
- * fixme: We'll need to have more font-related things up the top once
+ * fixme: We'll need to have more font-related things up the top once
* we're getting x-height from pango or libnrtype.
*/
@@ -1699,8 +1760,8 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
sp_style_merge_prop_from_dying_parent<SPIFloat>(style->stroke_miterlimit, parent->stroke_miterlimit);
/** \todo
- * We currently treat text-decoration as if it were a simple inherited
- * property (fixme). This code may need changing once we do the
+ * We currently treat text-decoration as if it were a simple inherited
+ * property (fixme). This code may need changing once we do the
* special fill/stroke inheritance mentioned by the spec.
*/
sp_style_merge_prop_from_dying_parent<SPITextDecoration>(style->text_decoration,
@@ -1757,9 +1818,9 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
/* Properties that involve a URI but are easy in other respects. */
{
/** \todo
- * Could cause problems if original object was in another document
- * and it used a relative URL. (At the time of writing, we don't
- * allow hrefs to other documents, so this isn't a problem yet.)
+ * Could cause problems if original object was in another document
+ * and it used a relative URL. (At the time of writing, we don't
+ * allow hrefs to other documents, so this isn't a problem yet.)
* Paint properties also allow URIs.
*/
//nyi: cursor, // may involve change in effect, but we can't do much better
@@ -1847,7 +1908,7 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
/* display is in principle similar to opacity, but implementation is easier. */
if ( parent->display.set && !parent->display.inherit
- && parent->display.value == SP_CSS_DISPLAY_NONE ) {
+ && parent->display.value == SP_CSS_DISPLAY_NONE ) {
style->display.value = SP_CSS_DISPLAY_NONE;
style->display.set = true;
style->display.inherit = false;
@@ -1859,9 +1920,29 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
/* Leave as is. (display doesn't inherit by default.) */
}
+ /* enable-background - this is rather complicated, because
+ * it is valid only when applied to container elements.
+ * Let's check a simple case anyhow. */
+ if (parent->enable_background.set
+ && !parent->enable_background.inherit
+ && style->enable_background.inherit)
+ {
+ style->enable_background.set = true;
+ style->enable_background.inherit = false;
+ style->enable_background.value = parent->enable_background.value;
+ }
+
+ 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);
+ }
+
/** \todo
- * fixme: Check that we correctly handle all properties that don't
- * inherit by default (as shown in
+ * fixme: Check that we correctly handle all properties that don't
+ * inherit by default (as shown in
* http://www.w3.org/TR/SVG11/propidx.html for most SVG 1.1 properties).
*/
}
@@ -1869,9 +1950,9 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
/* SPIPaint properties (including color). */
{
/** \todo
- * Think about the issues involved if specified as currentColor or
- * if specified relative to colorProfile, and if the currentColor or
- * colorProfile differs between parent \& child. See also comments
+ * Think about the issues involved if specified as currentColor or
+ * if specified relative to colorProfile, and if the currentColor or
+ * colorProfile differs between parent \& child. See also comments
* elsewhere in this function about URIs.
*/
SPIPaint SPStyle::*const fields[] = {
@@ -1924,18 +2005,19 @@ sp_style_merge_from_dying_parent(SPStyle *const style, SPStyle const *const pare
* Disconnects from possible fill and stroke paint servers.
*/
static void
-sp_style_paint_server_release(SPPaintServer *server, SPStyle *style)
+sp_style_paint_server_release(SPObject *obj, SPStyle *style)
{
+ SPPaintServer *server=static_cast<SPPaintServer *>(obj);
if ((style->fill.type == SP_PAINT_TYPE_PAINTSERVER)
&& (server == style->fill.value.paint.server))
{
- sp_style_paint_clear(style, &style->fill, TRUE, FALSE);
+ sp_style_paint_clear(style, &style->fill);
}
if ((style->stroke.type == SP_PAINT_TYPE_PAINTSERVER)
&& (server == style->stroke.value.paint.server))
{
- sp_style_paint_clear(style, &style->stroke, TRUE, FALSE);
+ sp_style_paint_clear(style, &style->stroke);
}
}
* or stroke paint server.
*/
static void
-sp_style_paint_server_modified(SPPaintServer *server, guint flags, SPStyle *style)
+sp_style_paint_server_modified(SPObject *obj, guint flags, SPStyle *style)
{
+ SPPaintServer *server = static_cast<SPPaintServer *>(obj);
if ((style->fill.type == SP_PAINT_TYPE_PAINTSERVER)
&& (server == style->fill.value.paint.server))
{
if (style->object) {
/** \todo
- * fixme: I do not know, whether it is optimal - we are
+ * fixme: I do not know, whether it is optimal - we are
* forcing reread of everything (Lauris)
*/
/** \todo
- * fixme: We have to use object_modified flag, because parent
+ * fixme: We have to use object_modified flag, because parent
* flag is only available downstreams.
*/
style->object->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
@@ -1977,13 +2060,43 @@ sp_style_paint_server_modified(SPPaintServer *server, guint flags, SPStyle *styl
+/**
+ * Disconnects from filter.
+ */
+static void
+sp_style_filter_release(SPObject *obj, SPStyle *style)
+{
+ SPFilter *filter=static_cast<SPFilter *>(obj);
+ if (style->filter.filter == filter)
+ {
+ sp_style_filter_clear(style);
+ }
+}
+
+
+/**
+ * Emit style modified signal on style's object if the filter changed.
+ */
+static void
+sp_style_filter_modified(SPObject *obj, guint flags, SPStyle *style)
+{
+ SPFilter *filter=static_cast<SPFilter *>(obj);
+ if (style->filter.filter == filter)
+ {
+ if (style->object) {
+ style->object->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
+ }
+ }
+}
+
+
/**
*
*/
static void
sp_style_merge_ipaint(SPStyle *style, SPIPaint *paint, SPIPaint const *parent)
{
- sp_style_paint_clear(style, paint, TRUE, FALSE);
+ sp_style_paint_clear(style, paint);
if ((paint->set && paint->currentcolor) || parent->currentcolor) {
paint->currentcolor = TRUE;
@@ -2002,15 +2115,28 @@ sp_style_merge_ipaint(SPStyle *style, SPIPaint *paint, SPIPaint const *parent)
paint->value.paint.uri = parent->value.paint.uri;
if (paint->value.paint.server) {
if (style->object && !style->cloned) { // href paintserver for style of non-clones only
- style->hreffed = true;
sp_object_href(SP_OBJECT(paint->value.paint.server), style);
+ if (paint == &style->fill) {
+ style->fill_hreffed = true;
+ } else {
+ assert(paint == &style->stroke);
+ style->stroke_hreffed = true;
+ }
}
if (style->object || style->cloned) { // connect to signals for style of real objects or clones (this excludes temp styles)
- g_signal_connect(G_OBJECT(paint->value.paint.server), "release",
- G_CALLBACK(sp_style_paint_server_release), style);
- g_signal_connect(G_OBJECT(paint->value.paint.server), "modified",
- G_CALLBACK(sp_style_paint_server_modified), style);
- style->listening = true;
+ SPObject *server = paint->value.paint.server;
+ sigc::connection release_connection
+ = server->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_style_paint_server_release), style));
+ sigc::connection modified_connection
+ = server->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_style_paint_server_modified), style));
+ if (paint == &style->fill) {
+ style->fill_release_connection = release_connection;
+ style->fill_modified_connection = modified_connection;
+ } else {
+ assert(paint == &style->stroke);
+ style->stroke_release_connection = release_connection;
+ style->stroke_modified_connection = modified_connection;
+ }
}
}
break;
@@ -2024,10 +2150,37 @@ sp_style_merge_ipaint(SPStyle *style, SPIPaint *paint, SPIPaint const *parent)
/**
- * Dumps the style to a CSS string, with either SP_STYLE_FLAG_IFSET or
- * SP_STYLE_FLAG_ALWAYS flags. Used with Always for copying an object's
- * complete cascaded style to style_clipboard. When you need a CSS string
- * for an object in the document tree, you normally call
+ * Merge filter style from parent.
+ * Filter effects do not inherit by default
+ */
+static void
+sp_style_merge_ifilter(SPStyle *style, SPIFilter const *parent)
+{
+ sp_style_filter_clear(style);
+ style->filter.set = parent->set;
+ style->filter.inherit = parent->inherit;
+ style->filter.filter = parent->filter;
+ style->filter.uri = parent->uri;
+ if (style->filter.filter) {
+ if (style->object && !style->cloned) { // href filter for style of non-clones only
+ sp_object_href(SP_OBJECT(style->filter.filter), style);
+ style->filter_hreffed = true;
+ }
+ if (style->object || style->cloned) { // connect to signals for style of real objects or clones (this excludes temp styles)
+ SPObject *filter = style->filter.filter;
+ style->filter_release_connection
+ = filter->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_style_filter_release), style));
+ style->filter_modified_connection
+ = filter->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_style_filter_modified), style));
+ }
+ }
+}
+
+/**
+ * Dumps the style to a CSS string, with either SP_STYLE_FLAG_IFSET or
+ * SP_STYLE_FLAG_ALWAYS flags. Used with Always for copying an object's
+ * complete cascaded style to style_clipboard. When you need a CSS string
+ * for an object in the document tree, you normally call
* sp_style_write_difference instead to take into account the object's parent.
*
* \pre style != NULL.
p += sp_style_write_ienum(p, c + BMAX - p, "stroke-linecap", enum_stroke_linecap, &style->stroke_linecap, NULL, flags);
p += sp_style_write_ienum(p, c + BMAX - p, "stroke-linejoin", enum_stroke_linejoin, &style->stroke_linejoin, NULL, flags);
- marker_status("sp_style_write_string: Writing markers");
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 += sp_style_write_ienum(p, c + BMAX - p, "display", enum_display, &style->display, NULL, flags);
p += sp_style_write_ienum(p, c + BMAX - p, "overflow", enum_overflow, &style->overflow, NULL, flags);
+ /* filter: */
+ p += sp_style_write_ifilter(p, c + BMAX - p, "filter", &style->filter, NULL, flags);
+
+ p += sp_style_write_ienum(p, c + BMAX - p, "enable-background", enum_enable_background, &style->enable_background, NULL, flags);
+
/* fixme: */
p += sp_text_style_write(p, c + BMAX - p, style->text, flags);
/**
* Dumps style to CSS string, see sp_style_write_string()
- *
+ *
* \pre from != NULL.
* \pre to != NULL.
* \post ret != NULL.
p += sp_style_write_ienum(p, c + BMAX - p, "text-anchor", enum_text_anchor, &from->text_anchor, &to->text_anchor, SP_STYLE_FLAG_IFDIFF);
- /// \todo fixme: Per type methods need default flag too
+ /// \todo fixme: Per type methods need default flag too
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_iscale24(p, c + BMAX - p, "stroke-opacity", &from->stroke_opacity, &to->stroke_opacity, SP_STYLE_FLAG_IFDIFF);
/* markers */
- marker_status("sp_style_write_difference: Writing markers");
if (from->marker[SP_MARKER_LOC].value != NULL) {
p += g_snprintf(p, c + BMAX - p, "marker:%s;", from->marker[SP_MARKER_LOC].value);
}
@@ -2258,6 +2414,11 @@ sp_style_write_difference(SPStyle const *const from, SPStyle const *const to)
p += sp_style_write_ienum(p, c + BMAX - p, "display", enum_display, &from->display, &to->display, SP_STYLE_FLAG_IFSET);
p += sp_style_write_ienum(p, c + BMAX - p, "overflow", enum_overflow, &from->overflow, &to->overflow, SP_STYLE_FLAG_IFSET);
+ /* filter: */
+ p += sp_style_write_ifilter(p, c + BMAX - p, "filter", &from->filter, &to->filter, SP_STYLE_FLAG_IFDIFF);
+
+ p += sp_style_write_ienum(p, c + BMAX - p, "enable-background", enum_enable_background, &from->enable_background, &to->enable_background, SP_STYLE_FLAG_IFSET);
+
p += sp_text_style_write(p, c + BMAX - p, from->text, SP_STYLE_FLAG_IFDIFF);
/** \todo
{
g_return_if_fail(style != NULL);
- sp_style_paint_clear(style, &style->fill, TRUE, FALSE);
- sp_style_paint_clear(style, &style->stroke, TRUE, FALSE);
+ sp_style_paint_clear(style, &style->fill);
+ sp_style_paint_clear(style, &style->stroke);
+ sp_style_filter_clear(style);
if (style->stroke_dash.dash) {
g_free(style->stroke_dash.dash);
}
g_free(style->marker[i].value);
style->marker[i].set = FALSE;
}
+
+ style->filter.set = FALSE;
+ style->filter.uri = NULL;
+ style->filter.filter = NULL;
+
+ style->enable_background.value = SP_CSS_BACKGROUND_ACCUMULATE;
+ style->enable_background.set = false;
+ style->enable_background.inherit = false;
}
/**
- *
+ *
*/
static void
sp_style_read_dash(SPStyle *style, gchar const *str)
/** \todo fixme: Move this to standard place (Lauris) */
value = g_ascii_strtod(str, &e);
if ((gchar const *) e != str) {
- /** \todo
- * Allow the number of px per inch to vary (document preferences,
- * X server or whatever). E.g. don't fill in computed here, do
+ /** \todo
+ * Allow the number of px per inch to vary (document preferences,
+ * X server or whatever). E.g. don't fill in computed here, do
* it at the same time as percentage units are done.
*/
if (!*e) {
@@ -2818,7 +2988,9 @@ sp_style_read_icolor(SPIPaint *paint, gchar const *str, SPStyle *style, SPDocume
/**
- * Set SPIPaint object from string.
+ * Set SPIPaint object from string.
+ *
+ * \pre paint == \&style.fill || paint == \&style.stroke.
*/
static void
sp_style_read_ipaint(SPIPaint *paint, gchar const *str, SPStyle *style, SPDocument *document)
@@ -2831,16 +3003,16 @@ sp_style_read_ipaint(SPIPaint *paint, gchar const *str, SPStyle *style, SPDocume
paint->set = TRUE;
paint->inherit = TRUE;
paint->currentcolor = FALSE;
- } else if (streq(str, "currentColor")) {
+ } else if (streq(str, "currentColor") && paint != &style->color) {
paint->set = TRUE;
paint->inherit = FALSE;
paint->currentcolor = TRUE;
- } else if (streq(str, "none")) {
+ } else if (streq(str, "none") && paint != &style->color) {
paint->type = SP_PAINT_TYPE_NONE;
paint->set = TRUE;
paint->inherit = FALSE;
paint->currentcolor = FALSE;
- } else if (strneq(str, "url", 3)) {
+ } else if (strneq(str, "url", 3) && paint != &style->color) {
// this is alloc'd uri, but seems to be shared with a parent
// potentially, so it's not any easy g_free case...
paint->value.paint.uri = extract_uri(str);
@@ -2858,27 +3030,52 @@ sp_style_read_ipaint(SPIPaint *paint, gchar const *str, SPStyle *style, SPDocume
paint->value.paint.server = SP_PAINT_SERVER(ps);
if (style->object && !style->cloned) {
sp_object_href(SP_OBJECT(paint->value.paint.server), style);
- style->hreffed = true;
+ if (paint == &style->fill) {
+ style->fill_hreffed = true;
+ } else {
+ assert(paint == &style->stroke);
+ style->stroke_hreffed = true;
+ }
}
if (style->object || style->cloned) {
- g_signal_connect(G_OBJECT(paint->value.paint.server), "release",
- G_CALLBACK(sp_style_paint_server_release), style);
- g_signal_connect(G_OBJECT(paint->value.paint.server), "modified",
- G_CALLBACK(sp_style_paint_server_modified), style);
- style->listening = true;
+ SPObject *server = paint->value.paint.server;
+ sigc::connection release_connection
+ = server->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_style_paint_server_release), style));
+ sigc::connection modified_connection
+ = server->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_style_paint_server_modified), style));
+ if (paint == &style->fill) {
+ style->fill_release_connection = release_connection;
+ style->fill_modified_connection = modified_connection;
+ } else {
+ assert(paint == &style->stroke);
+ style->stroke_release_connection = release_connection;
+ style->stroke_modified_connection = modified_connection;
+ }
}
} else {
paint->value.paint.server = NULL;
}
}
} else {
- guint32 const rgb0 = sp_svg_read_color(str, 0xff);
+ guint32 const rgb0 = sp_svg_read_color(str, &str, 0xff);
if (rgb0 != 0xff) {
paint->type = SP_PAINT_TYPE_COLOR;
sp_color_set_rgb_rgba32(&paint->value.color, rgb0);
paint->set = TRUE;
paint->inherit = FALSE;
paint->currentcolor = FALSE;
+
+ while (g_ascii_isspace(*str)) {
+ ++str;
+ }
+ if (strneq(str, "icc-color(", 10)) {
+ SVGICCColor* tmp = new SVGICCColor();
+ if ( ! sp_svg_read_icc_color( str, &str, tmp ) ) {
+ delete tmp;
+ tmp = 0;
+ }
+ paint->iccColor = tmp;
+ }
}
}
}
+/**
+ * Set SPIFilter object from string.
+ */
+static void
+sp_style_read_ifilter(gchar const *str, SPStyle * style, SPDocument *document)
+{
+ SPIFilter *f = &(style->filter);
+ /* Try all possible values: inherit, none, uri */
+ if (streq(str, "inherit")) {
+ f->set = TRUE;
+ f->inherit = TRUE;
+ f->filter = NULL;
+ } else if(streq(str, "none")) {
+ f->set = TRUE;
+ f->inherit = FALSE;
+ f->filter = NULL;
+ } else if (strneq(str, "url", 3)) {
+ f->uri = extract_uri(str);
+ if(f->uri == NULL || f->uri[0] == '\0') {
+ g_warning("Specified filter url is empty");
+ f->set = TRUE;
+ f->inherit = FALSE;
+ f->filter = NULL;
+ return;
+ }
+ f->set = TRUE;
+ f->inherit = FALSE;
+ f->filter = NULL;
+ if (document) {
+ SPObject *obj = sp_uri_reference_resolve(document, str);
+ if (SP_IS_FILTER(obj)) {
+ f->filter = SP_FILTER(obj);
+ if (style->object && !style->cloned) {
+ sp_object_href(obj, style);
+ style->filter_hreffed = true;
+ }
+ if (style->object || style->cloned) { // connect to signals for style of real objects or clones (this excludes temp styles)
+ SPObject *filter = style->filter.filter;
+ style->filter_release_connection
+ = filter->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_style_filter_release), style));
+ style->filter_modified_connection
+ = filter->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_style_filter_modified), style));
+ }
+ } else {
+ g_warning("Element '%s' not found or is not a filter", f->uri);
+ }
+ }
+
+ } else {
+ /* We shouldn't reach this if SVG input is well-formed */
+ f->set = FALSE;
+ f->inherit = FALSE;
+ f->filter = NULL;
+ f->uri = NULL;
+ }
+}
+
/**
* Set SPIEnum object from repr attribute.
*/
if (val->inherit) {
return g_snprintf(p, len, "%s:inherit;", key);
} else {
- return g_snprintf(p, len, "%s:%s;", key, val->value);
+ gchar *val_quoted = css2_escape_quote(val->value);
+ return g_snprintf(p, len, "%s:%s;", key, val_quoted);
+ g_free (val_quoted);
}
}
return 0;
/**
- *
+ *
*/
static bool
sp_length_differ(SPILength const *const a, SPILength const *const b)
if (a->type != b->type)
return true;
if (a->type == SP_PAINT_TYPE_COLOR)
- return !sp_color_is_equal(&a->value.color, &b->value.color);
+ return !(sp_color_is_equal(&a->value.color, &b->value.color)
+ && ((a->iccColor == b->iccColor)
+ || (a->iccColor && b->iccColor
+ && (a->iccColor->colorProfile == b->iccColor->colorProfile)
+ && (a->iccColor->colors == b->iccColor->colors))));
+ /* todo: Allow for epsilon differences in iccColor->colors, e.g. changes small enough not to show up
+ * in the string representation. */
if (a->type == SP_PAINT_TYPE_PAINTSERVER)
return (a->value.paint.server != b->value.paint.server);
return false;
return g_snprintf(b, len, "%s:currentColor;", key);
} else {
switch (paint->type) {
- case SP_PAINT_TYPE_COLOR:
- return g_snprintf(b, len, "%s:#%06x;", key, sp_color_get_rgba32_falpha(&paint->value.color, 0.0) >> 8);
- break;
- case SP_PAINT_TYPE_PAINTSERVER:
+ case SP_PAINT_TYPE_COLOR: {
+ char color_buf[8];
+ sp_svg_write_color(color_buf, sizeof(color_buf), sp_color_get_rgba32_ualpha(&paint->value.color, 0));
+ if (paint->iccColor) {
+ CSSOStringStream css;
+ css << color_buf << " icc-color(" << paint->iccColor->colorProfile;
+ for (vector<double>::const_iterator i(paint->iccColor->colors.begin()),
+ iEnd(paint->iccColor->colors.end());
+ i != iEnd; ++i) {
+ css << ", " << *i;
+ }
+ css << ')';
+ return g_snprintf(b, len, "%s:%s;", key, css.gcharp());
+ } else {
+ return g_snprintf(b, len, "%s:%s;", key, color_buf);
+ }
+ }
+ case SP_PAINT_TYPE_PAINTSERVER:
return g_snprintf(b, len, "%s:url(%s);", key, paint->value.paint.uri);
- break;
- default:
- break;
+ default:
+ break;
}
return g_snprintf(b, len, "%s:none;", key);
}
/**
- * Clear paint object; conditionally disconnect style from paintserver.
+ * Write SPIFilter object into string.
*/
-static void
-sp_style_paint_clear(SPStyle *style, SPIPaint *paint,
- unsigned hunref, unsigned unset)
+static gint
+sp_style_write_ifilter(gchar *p, gint const len, gchar const *key,
+ SPIFilter const *const val, SPIFilter const *const base,
+ guint const flags)
{
- if (hunref && (paint->type == SP_PAINT_TYPE_PAINTSERVER) && paint->value.paint.server) {
- if (style->hreffed) {
- sp_object_hunref(SP_OBJECT(paint->value.paint.server), style);
- style->hreffed = false;
+ if ((flags & SP_STYLE_FLAG_ALWAYS)
+ || ((flags & SP_STYLE_FLAG_IFSET) && val->set)
+ || ((flags & SP_STYLE_FLAG_IFDIFF) && val->set))
+ {
+ if (val->inherit) {
+ return g_snprintf(p, len, "%s:inherit;", key);
+ } else if (val->uri) {
+ return g_snprintf(p, len, "%s:url(%s);", key, val->uri);
}
- if (style->listening) {
- g_signal_handlers_disconnect_matched(G_OBJECT(paint->value.paint.server),
- G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, style);
- style->listening = false;
+ }
+
+
+ return 0;
+}
+
+
+/**
+ * Clear paint object, and disconnect style from paintserver (if present).
+ */
+static void
+sp_style_paint_clear(SPStyle *style, SPIPaint *paint)
+{
+ if ((paint->type == SP_PAINT_TYPE_PAINTSERVER) && paint->value.paint.server) {
+ if (paint == &style->fill) {
+ if (style->fill_hreffed) {
+ sp_object_hunref(SP_OBJECT(paint->value.paint.server), style);
+ style->fill_hreffed = false;
+ }
+ style->fill_release_connection.disconnect();
+ style->fill_modified_connection.disconnect();
+ } else {
+ assert(paint == &style->stroke); // Only fill & stroke can have a paint server.
+ if (style->stroke_hreffed) {
+ sp_object_hunref(SP_OBJECT(paint->value.paint.server), style);
+ style->stroke_hreffed = false;
+ }
+ style->stroke_release_connection.disconnect();
+ style->stroke_modified_connection.disconnect();
}
+
paint->value.paint.server = NULL;
- paint->value.paint.uri = NULL;
- paint->type = SP_PAINT_TYPE_NONE;
}
+ paint->value.paint.uri = NULL;
+ paint->type = SP_PAINT_TYPE_NONE;
+ delete paint->iccColor;
+ paint->iccColor = NULL;
+}
- if (unset) {
- paint->set = FALSE;
- paint->inherit = FALSE;
+
+/**
+ * Clear filter object, and disconnect style from paintserver (if present).
+ */
+static void
+sp_style_filter_clear(SPStyle *style)
+{
+
+ if (style->filter_hreffed) {
+ sp_object_hunref(SP_OBJECT(style->filter.filter), style);
+ style->filter_hreffed = false;
+ }
+ style->filter_release_connection.disconnect();
+ style->filter_modified_connection.disconnect();
+
+ style->filter.filter = NULL;
+}
+
+
+// FIXME: Everything below this line belongs in a different file - css-chemistry?
+
+void
+sp_style_set_property_url (SPObject *item, gchar const *property, SPObject *linked, bool recursive)
+{
+ Inkscape::XML::Node *repr = SP_OBJECT_REPR(item);
+
+ 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 (recursive) {
+ sp_repr_css_change_recursive(repr, css, "style");
+ } else {
+ sp_repr_css_change(repr, css, "style");
}
+ sp_repr_css_attr_unref(css);
}
+
/**
* Clear all style property attributes in object.
*/
if (style->writing_mode.set) {
repr->setAttribute("writing_mode", NULL);
}
+ if (style->filter.set) {
+ repr->setAttribute("filter", NULL);
+ }
+ if (style->enable_background.set) {
+ repr->setAttribute("enable-background", NULL);
+ }
}
/**
SPStyle const *const style = SP_OBJECT_STYLE(object);
if (style == NULL)
return NULL;
- return sp_css_attr_from_style (style, flags);
+ return sp_css_attr_from_style(style, flags);
}
/**
if (p == NULL)
return false;
/** \todo
- * FIXME: I'm not sure if this applies to SVG as well, but CSS2 says any URIs
+ * FIXME: I'm not sure if this applies to SVG as well, but CSS2 says any URIs
* in property values must start with 'url('.
*/
return (g_ascii_strncasecmp(p, "url(", 4) == 0);
}
/**
- * Unset any properties that contain URI values.
+ * Unset any properties that contain URI values.
*
- * Used for storing style that will be reused across documents when carrying
+ * Used for storing style that will be reused across documents when carrying
* the referenced defs is impractical.
*/
SPCSSAttr *
/**
- * Remove quotes from SPIString object value.
- *
- * \todo FIXME: now used for font family, but perhaps this should apply to
- * ALL strings (check CSS spec), in which case this should be part of
- * read_istring.
+ * Remove quotes and escapes from a string. Returned value must be g_free'd.
+ * Note: in CSS (in style= and in stylesheets), unquoting and unescaping is done
+ * by libcroco, our CSS parser, though it adds a new pair of "" quotes for the strings
+ * it parsed for us. So this function is only used to remove those quotes and for
+ * presentation attributes, without any unescaping. (XML unescaping
+ * (& etc) is done by XML parser.)
*/
-void
-css2_unescape_unquote (SPIString *val)
+gchar *
+attribute_unquote(gchar const *val)
{
- if (val->set && val->value && strlen(val->value) >= 2) {
+ if (val) {
+ if (*val == '\'' || *val == '"') {
+ int l = strlen(val);
+ if (l >= 2) {
+ if ( ( val[0] == '"' && val[l - 1] == '"' ) ||
+ ( val[0] == '\'' && val[l - 1] == '\'' ) ) {
+ return (g_strndup (val+1, l-2));
+ }
+ }
+ }
+ }
- /// \todo unescape all \-escaped chars
+ return (val? g_strdup (val) : NULL);
+}
- int l = strlen(val->value);
- if ((val->value[0] == '"' && val->value[l - 1] == '"') ||
- (val->value[0] == '\'' && val->value[l - 1] == '\'')) {
- memcpy (val->value, val->value+1, l - 2);
- val->value[l - 2] = '\0';
+/**
+ * Quote and/or escape string for writing to CSS (style=). Returned value must be g_free'd.
+ */
+gchar *
+css2_escape_quote(gchar const *val) {
+
+ Glib::ustring t;
+ bool quote = false;
+
+ for (gchar const *i = val; *i; i++) {
+ if (g_ascii_isalnum(*i) || *i=='-' || *i=='_') {
+ t.push_back(*i);
+ } else if (*i=='\'') {
+ t.push_back('\\');
+ t.push_back(*i);
+ quote = true;
+ } else {
+ t.push_back(*i);
+ quote = true;
+ }
+ if (i == val && !g_ascii_isalpha(*i)) {
+ quote = true;
}
}
-}
+ if (quote) { // we use the ' quotes so the result can go to the XML attribute
+ t.insert(t.begin(), '\'');
+ t.push_back('\'');
+ }
+
+ return (t.empty() ? NULL : g_strdup (t.c_str()));
+}
/*
Local Variables: