![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
index 0690ef140c480efe083600cad8c5f71b2cbc8b76..fb5dab648249b11873d83796c86b256a48b483d4 100644 (file)
-#define __SP_GRADIENT_CHEMISTRY_C__
-
/*
* Various utility methods for gradients
*
* Lauris Kaplinski <lauris@kaplinski.com>
* bulia byak
* Johan Engelen <j.b.c.engelen@ewi.utwente.nl>
+ * Jon A. Cruz <jon@joncruz.org>
+ * Abhishek Sharma
*
+ * Copyright (C) 2010 Authors
* Copyright (C) 2007 Johan Engelen
* Copyright (C) 2001-2005 authors
* Copyright (C) 2001 Ximian, Inc.
#include "sp-text.h"
#include "sp-tspan.h"
#include <libnr/nr-matrix-fns.h>
+#include <libnr/nr-point-fns.h>
+#include <libnr/nr-matrix-ops.h>
+#include <libnr/nr-rotate-ops.h>
+#include <2geom/transforms.h>
#include "xml/repr.h"
#include "svg/svg.h"
#include "svg/svg-color.h"
+#include "svg/css-ostringstream.h"
+#include "preferences.h"
+#define noSP_GR_VERBOSE
// Terminology:
//
static void sp_gradient_repr_set_link(Inkscape::XML::Node *repr, SPGradient *gr);
-SPGradient *
-sp_gradient_ensure_vector_normalized(SPGradient *gr)
+SPGradient *sp_gradient_ensure_vector_normalized(SPGradient *gr)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_ensure_vector_normalized(%p)", gr);
+#endif
g_return_val_if_fail(gr != NULL, NULL);
g_return_val_if_fail(SP_IS_GRADIENT(gr), NULL);
if (gr->state == SP_GRADIENT_STATE_VECTOR) return gr;
/* Fail, if we have wrong state set */
if (gr->state != SP_GRADIENT_STATE_UNKNOWN) {
- g_warning("file %s: line %d: Cannot normalize private gradient to vector (%s)", __FILE__, __LINE__, SP_OBJECT_ID(gr));
+ g_warning("file %s: line %d: Cannot normalize private gradient to vector (%s)", __FILE__, __LINE__, gr->getId());
return NULL;
}
/* First make sure we have vector directly defined (i.e. gr has its own stops) */
- if (!gr->has_stops) {
+ if ( !gr->hasStops() ) {
/* We do not have stops ourselves, so flatten stops as well */
- sp_gradient_ensure_vector(gr);
+ gr->ensureVector();
g_assert(gr->vector.built);
// this adds stops from gr->vector as children to gr
sp_gradient_repr_write_vector (gr);
/* If gr hrefs some other gradient, remove the href */
if (gr->ref->getObject()) {
/* We are hrefing someone, so require flattening */
- SP_OBJECT(gr)->updateRepr(((SPObject *) gr)->repr, SP_OBJECT_WRITE_EXT | SP_OBJECT_WRITE_ALL);
+ SP_OBJECT(gr)->updateRepr(SP_OBJECT_WRITE_EXT | SP_OBJECT_WRITE_ALL);
sp_gradient_repr_set_link(SP_OBJECT_REPR(gr), NULL);
}
* Creates new private gradient for the given vector
*/
-static SPGradient *
-sp_gradient_get_private_normalized(SPDocument *document, SPGradient *vector, SPGradientType type)
+static SPGradient *sp_gradient_get_private_normalized(SPDocument *document, SPGradient *vector, SPGradientType type)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_get_private_normalized(%p, %p, %d)", document, vector, type);
+#endif
+
g_return_val_if_fail(document != NULL, NULL);
g_return_val_if_fail(vector != NULL, NULL);
g_return_val_if_fail(SP_IS_GRADIENT(vector), NULL);
- g_return_val_if_fail(SP_GRADIENT_HAS_STOPS(vector), NULL);
+ g_return_val_if_fail(vector->hasStops(), NULL);
SPDefs *defs = (SPDefs *) SP_DOCUMENT_DEFS(document);
- Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
+ Inkscape::XML::Document *xml_doc = document->getReprDoc();
// create a new private gradient of the requested type
Inkscape::XML::Node *repr;
if (type == SP_GRADIENT_TYPE_LINEAR) {
@@ -125,8 +138,7 @@ sp_gradient_get_private_normalized(SPDocument *document, SPGradient *vector, SPG
/**
Count how many times gr is used by the styles of o and its descendants
*/
-guint
-count_gradient_hrefs(SPObject *o, SPGradient *gr)
+guint count_gradient_hrefs(SPObject *o, SPGradient *gr)
{
if (!o)
return 1;
i ++;
}
- for (SPObject *child = sp_object_first_child(o);
- child != NULL; child = SP_OBJECT_NEXT(child)) {
+ for ( SPObject *child = o->firstChild(); child; child = child->getNext() ) {
i += count_gradient_hrefs(child, gr);
}
/**
* If gr has other users, create a new private; also check if gr links to vector, relink if not
*/
-SPGradient *
-sp_gradient_fork_private_if_necessary(SPGradient *gr, SPGradient *vector,
- SPGradientType type, SPObject *o)
+SPGradient *sp_gradient_fork_private_if_necessary(SPGradient *gr, SPGradient *vector,
+ SPGradientType type, SPObject *o)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_fork_private_if_necessary(%p, %p, %d, %p)", gr, vector, type, o);
+#endif
g_return_val_if_fail(gr != NULL, NULL);
g_return_val_if_fail(SP_IS_GRADIENT(gr), NULL);
// Orphaned gradient, no vector with stops at the end of the line; this used to be an assert
// but i think we should not abort on this - maybe just write a validity warning into some sort
// of log
- if (!vector || !SP_GRADIENT_HAS_STOPS(vector))
+ if ( !vector || !vector->hasStops() ) {
return (gr);
+ }
// user is the object that uses this gradient; normally it's item but for tspans, we
// check its ancestor text so that tspans don't get different gradients from their
// Check the number of uses of the gradient within this object;
// if we are private and there are no other users,
- if (SP_OBJECT_HREFCOUNT(gr) <= count_gradient_hrefs(user, gr)) {
+ if (!vector->isSwatch() && (gr->hrefcount <= count_gradient_hrefs(user, gr))) {
// check vector
if ( gr != vector && gr->ref->getObject() != vector ) {
/* our href is not the vector, and vector is different from gr; relink */
SPDocument *doc = SP_OBJECT_DOCUMENT(gr);
SPObject *defs = SP_DOCUMENT_DEFS(doc);
- if ((gr->has_stops) ||
+ if ((gr->hasStops()) ||
(gr->state != SP_GRADIENT_STATE_UNKNOWN) ||
(SP_OBJECT_PARENT(gr) != SP_OBJECT(defs)) ||
- (SP_OBJECT_HREFCOUNT(gr) > 1)) {
+ (gr->hrefcount > 1)) {
// we have to clone a fresh new private gradient for the given vector
// create an empty one
}
}
-SPGradient *
-sp_gradient_fork_vector_if_necessary (SPGradient *gr)
+SPGradient *sp_gradient_fork_vector_if_necessary(SPGradient *gr)
{
- if (SP_OBJECT_HREFCOUNT(gr) > 1) {
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_fork_vector_if_necessary(%p)", gr);
+#endif
+ // Some people actually prefer their gradient vectors to be shared...
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ if (!prefs->getBool("/options/forkgradientvectors/value", true))
+ return gr;
+
+ if (gr->hrefcount > 1) {
SPDocument *doc = SP_OBJECT_DOCUMENT(gr);
- Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
+ Inkscape::XML::Document *xml_doc = doc->getReprDoc();
Inkscape::XML::Node *repr = SP_OBJECT_REPR (gr)->duplicate(xml_doc);
SP_OBJECT_REPR (SP_DOCUMENT_DEFS (doc))->addChild(repr, NULL);
/**
* Obtain the vector from the gradient. A forked vector will be created and linked to this gradient if another gradient uses it.
*/
-SPGradient *
-sp_gradient_get_forked_vector_if_necessary(SPGradient *gradient, bool force_vector)
+SPGradient *sp_gradient_get_forked_vector_if_necessary(SPGradient *gradient, bool force_vector)
{
- SPGradient *vector = sp_gradient_get_vector (gradient, force_vector);
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_get_forked_vector_if_necessary(%p, %d)", gradient, force_vector);
+#endif
+ SPGradient *vector = gradient->getVector(force_vector);
vector = sp_gradient_fork_vector_if_necessary (vector);
if ( gradient != vector && gradient->ref->getObject() != vector ) {
sp_gradient_repr_set_link(SP_OBJECT_REPR(gradient), vector);
@@ -267,34 +290,36 @@ sp_gradient_get_forked_vector_if_necessary(SPGradient *gradient, bool force_vect
* instead. No forking or reapplying is done because this is only called for newly created privates.
* @return The new gradient.
*/
-SPGradient *
-sp_gradient_reset_to_userspace (SPGradient *gr, SPItem *item)
+SPGradient *sp_gradient_reset_to_userspace(SPGradient *gr, SPItem *item)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_reset_to_userspace(%p, %p)", gr, item);
+#endif
Inkscape::XML::Node *repr = SP_OBJECT_REPR(gr);
// calculate the bbox of the item
- sp_document_ensure_up_to_date(SP_OBJECT_DOCUMENT(item));
- NR::Maybe<NR::Rect> bbox = item->getBounds(NR::identity()); // we need "true" bbox without item_i2d_affine
+ SP_OBJECT_DOCUMENT(item)->ensureUpToDate();
+ Geom::OptRect bbox = item->getBounds(Geom::identity()); // we need "true" bbox without item_i2d_affine
- if ( !bbox || bbox->isEmpty() )
+ if (!bbox)
return gr;
- NR::Coord const width = bbox->dimensions()[NR::X];
- NR::Coord const height = bbox->dimensions()[NR::Y];
+ Geom::Coord const width = bbox->dimensions()[Geom::X];
+ Geom::Coord const height = bbox->dimensions()[Geom::Y];
- NR::Point const center = bbox->midpoint();
+ Geom::Point const center = bbox->midpoint();
if (SP_IS_RADIALGRADIENT(gr)) {
- sp_repr_set_svg_double(repr, "cx", center[NR::X]);
- sp_repr_set_svg_double(repr, "cy", center[NR::Y]);
- sp_repr_set_svg_double(repr, "fx", center[NR::X]);
- sp_repr_set_svg_double(repr, "fy", center[NR::Y]);
+ sp_repr_set_svg_double(repr, "cx", center[Geom::X]);
+ sp_repr_set_svg_double(repr, "cy", center[Geom::Y]);
+ sp_repr_set_svg_double(repr, "fx", center[Geom::X]);
+ sp_repr_set_svg_double(repr, "fy", center[Geom::Y]);
sp_repr_set_svg_double(repr, "r", width/2);
// we want it to be elliptic, not circular
- NR::Matrix squeeze = NR::Matrix (NR::translate (-center)) *
- NR::Matrix (NR::scale(1, height/width)) *
- NR::Matrix (NR::translate (center));
+ Geom::Matrix squeeze = Geom::Translate (-center) *
+ Geom::Scale(1, height/width) *
+ Geom::Translate (center);
gr->gradientTransform = squeeze;
{
g_free(c);
}
} else {
- sp_repr_set_svg_double(repr, "x1", (center - NR::Point(width/2, 0))[NR::X]);
- sp_repr_set_svg_double(repr, "y1", (center - NR::Point(width/2, 0))[NR::Y]);
- sp_repr_set_svg_double(repr, "x2", (center + NR::Point(width/2, 0))[NR::X]);
- sp_repr_set_svg_double(repr, "y2", (center + NR::Point(width/2, 0))[NR::Y]);
+ sp_repr_set_svg_double(repr, "x1", (center - Geom::Point(width/2, 0))[Geom::X]);
+ sp_repr_set_svg_double(repr, "y1", (center - Geom::Point(width/2, 0))[Geom::Y]);
+ sp_repr_set_svg_double(repr, "x2", (center + Geom::Point(width/2, 0))[Geom::X]);
+ sp_repr_set_svg_double(repr, "y2", (center + Geom::Point(width/2, 0))[Geom::Y]);
}
// set the gradientUnits
* Convert an item's gradient to userspace if necessary, also fork it if necessary.
* @return The new gradient.
*/
-SPGradient *
-sp_gradient_convert_to_userspace(SPGradient *gr, SPItem *item, gchar const *property)
+SPGradient *sp_gradient_convert_to_userspace(SPGradient *gr, SPItem *item, gchar const *property)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_convert_to_userspace(%p, %p, \"%s\")", gr, item, property);
+#endif
g_return_val_if_fail(SP_IS_GRADIENT(gr), NULL);
+ if ( gr && gr->isSolid() ) {
+ return gr;
+ }
+
// First, fork it if it is shared
- gr = sp_gradient_fork_private_if_necessary(gr, sp_gradient_get_vector(gr, FALSE),
+ gr = sp_gradient_fork_private_if_necessary(gr, gr->getVector(),
SP_IS_RADIALGRADIENT(gr) ? SP_GRADIENT_TYPE_RADIAL : SP_GRADIENT_TYPE_LINEAR, SP_OBJECT(item));
- if (gr->units == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) {
+ if (gr->getUnits() == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) {
Inkscape::XML::Node *repr = SP_OBJECT_REPR(gr);
// calculate the bbox of the item
- sp_document_ensure_up_to_date(SP_OBJECT_DOCUMENT(item));
- NR::Matrix bbox2user;
- NR::Maybe<NR::Rect> bbox = item->getBounds(NR::identity()); // we need "true" bbox without item_i2d_affine
- if ( bbox && !bbox->isEmpty() ) {
- bbox2user = NR::Matrix(bbox->dimensions()[NR::X], 0,
- 0, bbox->dimensions()[NR::Y],
- bbox->min()[NR::X], bbox->min()[NR::Y]);
+ SP_OBJECT_DOCUMENT(item)->ensureUpToDate();
+ Geom::Matrix bbox2user;
+ Geom::OptRect bbox = item->getBounds(Geom::identity()); // we need "true" bbox without item_i2d_affine
+ if ( bbox ) {
+ bbox2user = Geom::Matrix(bbox->dimensions()[Geom::X], 0,
+ 0, bbox->dimensions()[Geom::Y],
+ bbox->min()[Geom::X], bbox->min()[Geom::Y]);
} else {
// would be degenerate otherwise
- bbox2user = NR::identity();
+ bbox2user = Geom::identity();
}
/* skew is the additional transform, defined by the proportions of the item, that we need
@@ -359,8 +390,8 @@ sp_gradient_convert_to_userspace(SPGradient *gr, SPItem *item, gchar const *prop
* gradient vector in user space due to application of the non-uniform scaling
* transformation from bounding box space to user space.
*/
- NR::Matrix skew = bbox2user;
- double exp = skew.expansion();
+ Geom::Matrix skew = bbox2user;
+ double exp = skew.descrim();
skew[0] /= exp;
skew[1] /= exp;
skew[2] /= exp;
@@ -378,40 +409,40 @@ sp_gradient_convert_to_userspace(SPGradient *gr, SPItem *item, gchar const *prop
// Matrix to convert points to userspace coords; postmultiply by inverse of skew so
// as to cancel it out when it's applied to the gradient during rendering
- NR::Matrix point_convert = bbox2user * skew.inverse();
+ Geom::Matrix point_convert = bbox2user * skew.inverse();
if (SP_IS_RADIALGRADIENT(gr)) {
SPRadialGradient *rg = SP_RADIALGRADIENT(gr);
// original points in the bbox coords
- NR::Point c_b = NR::Point(rg->cx.computed, rg->cy.computed);
- NR::Point f_b = NR::Point(rg->fx.computed, rg->fy.computed);
+ Geom::Point c_b = Geom::Point(rg->cx.computed, rg->cy.computed);
+ Geom::Point f_b = Geom::Point(rg->fx.computed, rg->fy.computed);
double r_b = rg->r.computed;
// converted points in userspace coords
- NR::Point c_u = c_b * point_convert;
- NR::Point f_u = f_b * point_convert;
- double r_u = r_b * point_convert.expansion();
-
- sp_repr_set_svg_double(repr, "cx", c_u[NR::X]);
- sp_repr_set_svg_double(repr, "cy", c_u[NR::Y]);
- sp_repr_set_svg_double(repr, "fx", f_u[NR::X]);
- sp_repr_set_svg_double(repr, "fy", f_u[NR::Y]);
+ Geom::Point c_u = c_b * point_convert;
+ Geom::Point f_u = f_b * point_convert;
+ double r_u = r_b * point_convert.descrim();
+
+ sp_repr_set_svg_double(repr, "cx", c_u[Geom::X]);
+ sp_repr_set_svg_double(repr, "cy", c_u[Geom::Y]);
+ sp_repr_set_svg_double(repr, "fx", f_u[Geom::X]);
+ sp_repr_set_svg_double(repr, "fy", f_u[Geom::Y]);
sp_repr_set_svg_double(repr, "r", r_u);
} else {
SPLinearGradient *lg = SP_LINEARGRADIENT(gr);
- NR::Point p1_b = NR::Point(lg->x1.computed, lg->y1.computed);
- NR::Point p2_b = NR::Point(lg->x2.computed, lg->y2.computed);
+ Geom::Point p1_b = Geom::Point(lg->x1.computed, lg->y1.computed);
+ Geom::Point p2_b = Geom::Point(lg->x2.computed, lg->y2.computed);
- NR::Point p1_u = p1_b * point_convert;
- NR::Point p2_u = p2_b * point_convert;
+ Geom::Point p1_u = p1_b * point_convert;
+ Geom::Point p2_u = p2_b * point_convert;
- sp_repr_set_svg_double(repr, "x1", p1_u[NR::X]);
- sp_repr_set_svg_double(repr, "y1", p1_u[NR::Y]);
- sp_repr_set_svg_double(repr, "x2", p2_u[NR::X]);
- sp_repr_set_svg_double(repr, "y2", p2_u[NR::Y]);
+ sp_repr_set_svg_double(repr, "x1", p1_u[Geom::X]);
+ sp_repr_set_svg_double(repr, "y1", p1_u[Geom::Y]);
+ sp_repr_set_svg_double(repr, "x2", p2_u[Geom::X]);
+ sp_repr_set_svg_double(repr, "y2", p2_u[Geom::Y]);
}
// set the gradientUnits
@@ -431,9 +462,11 @@ sp_gradient_convert_to_userspace(SPGradient *gr, SPItem *item, gchar const *prop
return gr;
}
-void
-sp_gradient_transform_multiply(SPGradient *gradient, NR::Matrix postmul, bool set)
+void sp_gradient_transform_multiply(SPGradient *gradient, Geom::Matrix postmul, bool set)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_transform_multiply(%p, , %d)", gradient, set);
+#endif
if (set) {
gradient->gradientTransform = postmul;
} else {
@@ -446,24 +479,23 @@ sp_gradient_transform_multiply(SPGradient *gradient, NR::Matrix postmul, bool se
g_free(c);
}
-SPGradient *
-sp_item_gradient (SPItem *item, bool fill_or_stroke)
+SPGradient *sp_item_gradient(SPItem *item, bool fill_or_stroke)
{
- SPStyle *style = SP_OBJECT_STYLE (item);
- SPGradient *gradient = NULL;
+ SPStyle *style = item->style;
+ SPGradient *gradient = 0;
if (fill_or_stroke) {
if (style && (style->fill.isPaintserver())) {
- SPObject *server = SP_OBJECT_STYLE_FILL_SERVER(item);
- if (SP_IS_GRADIENT (server)) {
- gradient = SP_GRADIENT (server);
+ SPPaintServer *server = item->style->getFillPaintServer();
+ if ( SP_IS_GRADIENT(server) ) {
+ gradient = SP_GRADIENT(server);
}
}
} else {
if (style && (style->stroke.isPaintserver())) {
- SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER(item);
- if (SP_IS_GRADIENT (server)) {
- gradient = SP_GRADIENT (server);
+ SPPaintServer *server = item->style->getStrokePaintServer();
+ if ( SP_IS_GRADIENT(server) ) {
+ gradient = SP_GRADIENT(server);
}
}
}
return gradient;
}
-
-SPStop*
-sp_first_stop(SPGradient *gradient)
+SPStop *sp_last_stop(SPGradient *gradient)
{
- for (SPObject *ochild = sp_object_first_child(gradient); ochild != NULL; ochild = SP_OBJECT_NEXT(ochild)) {
- if (SP_IS_STOP (ochild))
- return SP_STOP(ochild);
- }
- return NULL;
+ for (SPStop *stop = gradient->getFirstStop(); stop != NULL; stop = stop->getNextStop()) {
+ if (stop->getNextStop() == NULL)
+ return stop;
+ }
+ return NULL;
}
-SPStop*
-sp_prev_stop(SPStop *stop, SPGradient *gradient)
+SPStop *sp_get_stop_i(SPGradient *gradient, guint stop_i)
{
- if (sp_object_first_child(SP_OBJECT(gradient)) == SP_OBJECT(stop))
- return NULL;
- SPObject *found = NULL;
- for ( SPObject *ochild = sp_object_first_child(SP_OBJECT(gradient)) ; ochild != NULL ; ochild = SP_OBJECT_NEXT(ochild) ) {
- if (SP_IS_STOP (ochild)) {
- found = ochild;
- }
- if (SP_OBJECT_NEXT(ochild) == SP_OBJECT(stop) || SP_OBJECT(ochild) == SP_OBJECT(stop)) {
- break;
- }
- }
- return SP_STOP(found);
+ SPStop *stop = gradient->getFirstStop();
+
+ // if this is valid but weird gradient without an offset-zero stop element,
+ // inkscape has created a handle for the start of gradient anyway,
+ // so when it asks for stop N that corresponds to stop element N-1
+ if (stop->offset != 0)
+ stop_i --;
+
+ for (guint i = 0; i < stop_i; i++) {
+ if (!stop) {
+ return NULL;
+ }
+ stop = stop->getNextStop();
+ }
+
+ return stop;
}
-SPStop*
-sp_next_stop(SPStop *stop)
+guint32 average_color(guint32 c1, guint32 c2, gdouble p)
{
- for (SPObject *ochild = SP_OBJECT_NEXT(stop); ochild != NULL; ochild = SP_OBJECT_NEXT(ochild)) {
- if (SP_IS_STOP (ochild))
- return SP_STOP(ochild);
- }
- return NULL;
+ guint32 r = (guint32) (SP_RGBA32_R_U (c1) * (1 - p) + SP_RGBA32_R_U (c2) * p);
+ guint32 g = (guint32) (SP_RGBA32_G_U (c1) * (1 - p) + SP_RGBA32_G_U (c2) * p);
+ guint32 b = (guint32) (SP_RGBA32_B_U (c1) * (1 - p) + SP_RGBA32_B_U (c2) * p);
+ guint32 a = (guint32) (SP_RGBA32_A_U (c1) * (1 - p) + SP_RGBA32_A_U (c2) * p);
+
+ return SP_RGBA32_U_COMPOSE(r, g, b, a);
}
-SPStop*
-sp_last_stop(SPGradient *gradient)
+SPStop *sp_vector_add_stop(SPGradient *vector, SPStop* prev_stop, SPStop* next_stop, gfloat offset)
{
- for (SPStop *stop = sp_first_stop (gradient); stop != NULL; stop = sp_next_stop (stop)) {
- if (sp_next_stop (stop) == NULL)
- return stop;
- }
- return NULL;
-}
-
-SPStop*
-sp_get_stop_i(SPGradient *gradient, guint stop_i)
-{
- SPStop *stop = sp_first_stop (gradient);
-
- for (guint i=0; i < stop_i; i++) {
- if (!stop) return NULL;
- stop = sp_next_stop (stop);
- }
-
- return stop;
+#ifdef SP_GR_VERBOSE
+ g_message("sp_vector_add_stop(%p, %p, %p, %f)", vector, prev_stop, next_stop, offset);
+#endif
+
+ Inkscape::XML::Node *new_stop_repr = NULL;
+ new_stop_repr = SP_OBJECT_REPR(prev_stop)->duplicate(SP_OBJECT_REPR(vector)->document());
+ SP_OBJECT_REPR(vector)->addChild(new_stop_repr, SP_OBJECT_REPR(prev_stop));
+
+ SPStop *newstop = (SPStop *) SP_OBJECT_DOCUMENT(vector)->getObjectByRepr(new_stop_repr);
+ newstop->offset = offset;
+ sp_repr_set_css_double( SP_OBJECT_REPR(newstop), "offset", (double)offset);
+ guint32 const c1 = sp_stop_get_rgba32(prev_stop);
+ guint32 const c2 = sp_stop_get_rgba32(next_stop);
+ guint32 cnew = average_color (c1, c2, (offset - prev_stop->offset) / (next_stop->offset - prev_stop->offset));
+ Inkscape::CSSOStringStream os;
+ gchar c[64];
+ sp_svg_write_color (c, sizeof(c), cnew);
+ gdouble opacity = (gdouble) SP_RGBA32_A_F (cnew);
+ os << "stop-color:" << c << ";stop-opacity:" << opacity <<";";
+ SP_OBJECT_REPR (newstop)->setAttribute("style", os.str().c_str());
+ Inkscape::GC::release(new_stop_repr);
+
+ return newstop;
}
-
-void
-sp_item_gradient_edit_stop (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke)
+void sp_item_gradient_edit_stop(SPItem *item, guint point_type, guint point_i, bool fill_or_stroke)
{
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
if (!gradient || !SP_IS_GRADIENT(gradient))
return;
- SPGradient *vector = sp_gradient_get_vector (gradient, false);
+ SPGradient *vector = gradient->getVector();
switch (point_type) {
case POINT_LG_BEGIN:
case POINT_RG_CENTER:
case POINT_RG_FOCUS:
{
- GtkWidget *dialog = sp_gradient_vector_editor_new (vector, sp_first_stop (vector));
+ GtkWidget *dialog = sp_gradient_vector_editor_new (vector, vector->getFirstStop());
gtk_widget_show (dialog);
}
break;
gtk_widget_show (dialog);
}
break;
-
+
case POINT_LG_MID:
case POINT_RG_MID1:
case POINT_RG_MID2:
@@ -574,15 +609,14 @@ sp_item_gradient_edit_stop (SPItem *item, guint point_type, guint point_i, bool
}
}
-guint32
-sp_item_gradient_stop_query_style (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke)
+guint32 sp_item_gradient_stop_query_style(SPItem *item, guint point_type, guint point_i, bool fill_or_stroke)
{
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
if (!gradient || !SP_IS_GRADIENT(gradient))
return 0;
- SPGradient *vector = sp_gradient_get_vector (gradient, false);
+ SPGradient *vector = gradient->getVector();
if (!vector) // orphan!
return 0; // what else to do?
@@ -592,7 +626,7 @@ sp_item_gradient_stop_query_style (SPItem *item, guint point_type, guint point_i
case POINT_RG_CENTER:
case POINT_RG_FOCUS:
{
- SPStop *first = sp_first_stop (vector);
+ SPStop *first = vector->getFirstStop();
if (first) {
return sp_stop_get_rgba32(first);
}
@@ -609,7 +643,7 @@ sp_item_gradient_stop_query_style (SPItem *item, guint point_type, guint point_i
}
}
break;
-
+
case POINT_LG_MID:
case POINT_RG_MID1:
case POINT_RG_MID2:
@@ -627,15 +661,17 @@ sp_item_gradient_stop_query_style (SPItem *item, guint point_type, guint point_i
return 0;
}
-void
-sp_item_gradient_stop_set_style (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke, SPCSSAttr *stop)
+void sp_item_gradient_stop_set_style(SPItem *item, guint point_type, guint point_i, bool fill_or_stroke, SPCSSAttr *stop)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_item_gradient_stop_set_style(%p, %d, %d, %d, %p)", item, point_type, point_i, fill_or_stroke, stop);
+#endif
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
if (!gradient || !SP_IS_GRADIENT(gradient))
return;
- SPGradient *vector = sp_gradient_get_vector (gradient, false);
+ SPGradient *vector = gradient->getVector();
if (!vector) // orphan!
return;
case POINT_RG_CENTER:
case POINT_RG_FOCUS:
{
- SPStop *first = sp_first_stop (vector);
+ SPStop *first = vector->getFirstStop();
if (first) {
sp_repr_css_change (SP_OBJECT_REPR (first), stop, "style");
}
}
}
break;
-
+
case POINT_LG_MID:
case POINT_RG_MID1:
case POINT_RG_MID2:
@@ -678,20 +714,22 @@ sp_item_gradient_stop_set_style (SPItem *item, guint point_type, guint point_i,
}
}
break;
-
+
default:
break;
}
}
-void
-sp_item_gradient_reverse_vector (SPItem *item, bool fill_or_stroke)
+void sp_item_gradient_reverse_vector(SPItem *item, bool fill_or_stroke)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_item_gradient_reverse_vector(%p, %d)", item, fill_or_stroke);
+#endif
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
if (!gradient || !SP_IS_GRADIENT(gradient))
return;
- SPGradient *vector = sp_gradient_get_vector (gradient, false);
+ SPGradient *vector = gradient->getVector();
if (!vector) // orphan!
return;
GSList *child_reprs = NULL;
GSList *child_objects = NULL;
std::vector<double> offsets;
- for (SPObject *child = sp_object_first_child(vector);
- child != NULL; child = SP_OBJECT_NEXT(child)) {
+ for ( SPObject *child = vector->firstChild(); child; child = child->getNext()) {
child_reprs = g_slist_prepend (child_reprs, SP_OBJECT_REPR(child));
child_objects = g_slist_prepend (child_objects, child);
offsets.push_back(sp_repr_get_double_attribute(SP_OBJECT_REPR(child), "offset", 0));
}
-// FIXME: make general global function
-static double
-get_offset_between_points (NR::Point p, NR::Point begin, NR::Point end)
-{
- double length = NR::L2(end - begin);
- NR::Point be = (end - begin) / length;
- double r = NR::dot(p - begin, be);
-
- if (r < 0.0) return 0.0;
- if (r > length) return 1.0;
-
- return (r / length);
-}
-
-
/**
Set the position of point point_type of the gradient applied to item (either fill_or_stroke) to
p_w (in desktop coordinates). Write_repr if you want the change to become permanent.
*/
-void
-sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::Point p_w, bool fill_or_stroke, bool write_repr, bool scale)
+void sp_item_gradient_set_coords(SPItem *item, guint point_type, guint point_i, Geom::Point p_w, bool fill_or_stroke, bool write_repr, bool scale)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_item_gradient_set_coords(%p, %d, %d, ...)", item, point_type, point_i );
+#endif
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
if (!gradient || !SP_IS_GRADIENT(gradient))
@@ -767,8 +791,8 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
gradient = sp_gradient_convert_to_userspace (gradient, item, fill_or_stroke? "fill" : "stroke");
- NR::Matrix i2d = sp_item_i2d_affine (item);
- NR::Point p = p_w * i2d.inverse();
+ Geom::Matrix i2d (item->i2d_affine ());
+ Geom::Point p = p_w * i2d.inverse();
p *= (gradient->gradientTransform).inverse();
// now p is in gradient's original coordinates
@@ -779,11 +803,11 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
switch (point_type) {
case POINT_LG_BEGIN:
if (scale) {
- lg->x2.computed += (lg->x1.computed - p[NR::X]);
- lg->y2.computed += (lg->y1.computed - p[NR::Y]);
+ lg->x2.computed += (lg->x1.computed - p[Geom::X]);
+ lg->y2.computed += (lg->y1.computed - p[Geom::Y]);
}
- lg->x1.computed = p[NR::X];
- lg->y1.computed = p[NR::Y];
+ lg->x1.computed = p[Geom::X];
+ lg->y1.computed = p[Geom::Y];
if (write_repr) {
if (scale) {
sp_repr_set_svg_double(repr, "x2", lg->x2.computed);
@@ -797,11 +821,11 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
break;
case POINT_LG_END:
if (scale) {
- lg->x1.computed += (lg->x2.computed - p[NR::X]);
- lg->y1.computed += (lg->y2.computed - p[NR::Y]);
+ lg->x1.computed += (lg->x2.computed - p[Geom::X]);
+ lg->y1.computed += (lg->y2.computed - p[Geom::Y]);
}
- lg->x2.computed = p[NR::X];
- lg->y2.computed = p[NR::Y];
+ lg->x2.computed = p[Geom::X];
+ lg->y2.computed = p[Geom::Y];
if (write_repr) {
if (scale) {
sp_repr_set_svg_double(repr, "x1", lg->x1.computed);
@@ -812,13 +836,13 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
} else {
SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
- break;
+ break;
case POINT_LG_MID:
- {
+ {
// using X-coordinates only to determine the offset, assuming p has been snapped to the vector from begin to end.
- double offset = get_offset_between_points (p, NR::Point(lg->x1.computed, lg->y1.computed), NR::Point(lg->x2.computed, lg->y2.computed));
+ double offset = get_offset_between_points (p, Geom::Point(lg->x1.computed, lg->y1.computed), Geom::Point(lg->x2.computed, lg->y2.computed));
SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (lg, false);
- sp_gradient_ensure_vector(lg);
+ lg->ensureVector();
lg->vector.stops.at(point_i).offset = offset;
SPStop* stopi = sp_get_stop_i(vector, point_i);
stopi->offset = offset;
@@ -829,91 +853,91 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
}
}
break;
- default:
- break;
- }
- } else if (SP_IS_RADIALGRADIENT(gradient)) {
+ default:
+ break;
+ }
+ } else if (SP_IS_RADIALGRADIENT(gradient)) {
SPRadialGradient *rg = SP_RADIALGRADIENT(gradient);
- NR::Point c (rg->cx.computed, rg->cy.computed);
- NR::Point c_w = c * gradient->gradientTransform * i2d; // now in desktop coords
- if ((point_type == POINT_RG_R1 || point_type == POINT_RG_R2) && NR::L2 (p_w - c_w) < 1e-3) {
+ Geom::Point c (rg->cx.computed, rg->cy.computed);
+ Geom::Point c_w = c * gradient->gradientTransform * i2d; // now in desktop coords
+ if ((point_type == POINT_RG_R1 || point_type == POINT_RG_R2) && Geom::L2 (p_w - c_w) < 1e-3) {
// prevent setting a radius too close to the center
return;
}
- NR::Matrix new_transform;
+ Geom::Matrix new_transform;
bool transform_set = false;
- switch (point_type) {
- case POINT_RG_CENTER:
- rg->fx.computed = p[NR::X] + (rg->fx.computed - rg->cx.computed);
- rg->fy.computed = p[NR::Y] + (rg->fy.computed - rg->cy.computed);
- rg->cx.computed = p[NR::X];
- rg->cy.computed = p[NR::Y];
- if (write_repr) {
- sp_repr_set_svg_double(repr, "fx", rg->fx.computed);
- sp_repr_set_svg_double(repr, "fy", rg->fy.computed);
- sp_repr_set_svg_double(repr, "cx", rg->cx.computed);
- sp_repr_set_svg_double(repr, "cy", rg->cy.computed);
- } else {
- SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
- }
- break;
- case POINT_RG_FOCUS:
- rg->fx.computed = p[NR::X];
- rg->fy.computed = p[NR::Y];
- if (write_repr) {
- sp_repr_set_svg_double(repr, "fx", rg->fx.computed);
- sp_repr_set_svg_double(repr, "fy", rg->fy.computed);
- } else {
- SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
- }
- break;
- case POINT_RG_R1:
- {
- NR::Point r1_w = (c + NR::Point(rg->r.computed, 0)) * gradient->gradientTransform * i2d;
- double r1_angle = NR::atan2(r1_w - c_w);
- double move_angle = NR::atan2(p_w - c_w) - r1_angle;
- double move_stretch = NR::L2(p_w - c_w) / NR::L2(r1_w - c_w);
-
- NR::Matrix move = NR::Matrix (NR::translate (-c_w)) *
- NR::Matrix (NR::rotate(-r1_angle)) *
- NR::Matrix (NR::scale(move_stretch, scale? move_stretch : 1)) *
- NR::Matrix (NR::rotate(r1_angle)) *
- NR::Matrix (NR::rotate(move_angle)) *
- NR::Matrix (NR::translate (c_w));
-
- new_transform = gradient->gradientTransform * i2d * move * i2d.inverse();
- transform_set = true;
-
- break;
- }
- case POINT_RG_R2:
- {
- NR::Point r2_w = (c + NR::Point(0, -rg->r.computed)) * gradient->gradientTransform * i2d;
- double r2_angle = NR::atan2(r2_w - c_w);
- double move_angle = NR::atan2(p_w - c_w) - r2_angle;
- double move_stretch = NR::L2(p_w - c_w) / NR::L2(r2_w - c_w);
-
- NR::Matrix move = NR::Matrix (NR::translate (-c_w)) *
- NR::Matrix (NR::rotate(-r2_angle)) *
- NR::Matrix (NR::scale(move_stretch, scale? move_stretch : 1)) *
- NR::Matrix (NR::rotate(r2_angle)) *
- NR::Matrix (NR::rotate(move_angle)) *
- NR::Matrix (NR::translate (c_w));
-
- new_transform = gradient->gradientTransform * i2d * move * i2d.inverse();
- transform_set = true;
+ switch (point_type) {
+ case POINT_RG_CENTER:
+ rg->fx.computed = p[Geom::X] + (rg->fx.computed - rg->cx.computed);
+ rg->fy.computed = p[Geom::Y] + (rg->fy.computed - rg->cy.computed);
+ rg->cx.computed = p[Geom::X];
+ rg->cy.computed = p[Geom::Y];
+ if (write_repr) {
+ sp_repr_set_svg_double(repr, "fx", rg->fx.computed);
+ sp_repr_set_svg_double(repr, "fy", rg->fy.computed);
+ sp_repr_set_svg_double(repr, "cx", rg->cx.computed);
+ sp_repr_set_svg_double(repr, "cy", rg->cy.computed);
+ } else {
+ SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ }
+ break;
+ case POINT_RG_FOCUS:
+ rg->fx.computed = p[Geom::X];
+ rg->fy.computed = p[Geom::Y];
+ if (write_repr) {
+ sp_repr_set_svg_double(repr, "fx", rg->fx.computed);
+ sp_repr_set_svg_double(repr, "fy", rg->fy.computed);
+ } else {
+ SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ }
+ break;
+ case POINT_RG_R1:
+ {
+ Geom::Point r1_w = (c + Geom::Point(rg->r.computed, 0)) * gradient->gradientTransform * i2d;
+ double r1_angle = Geom::atan2(r1_w - c_w);
+ double move_angle = Geom::atan2(p_w - c_w) - r1_angle;
+ double move_stretch = Geom::L2(p_w - c_w) / Geom::L2(r1_w - c_w);
+
+ Geom::Matrix move = Geom::Matrix (Geom::Translate (-c_w)) *
+ Geom::Matrix (Geom::Rotate(-r1_angle)) *
+ Geom::Matrix (Geom::Scale(move_stretch, scale? move_stretch : 1)) *
+ Geom::Matrix (Geom::Rotate(r1_angle)) *
+ Geom::Matrix (Geom::Rotate(move_angle)) *
+ Geom::Matrix (Geom::Translate (c_w));
+
+ new_transform = gradient->gradientTransform * i2d * move * i2d.inverse();
+ transform_set = true;
+
+ break;
+ }
+ case POINT_RG_R2:
+ {
+ Geom::Point r2_w = (c + Geom::Point(0, -rg->r.computed)) * gradient->gradientTransform * i2d;
+ double r2_angle = Geom::atan2(r2_w - c_w);
+ double move_angle = Geom::atan2(p_w - c_w) - r2_angle;
+ double move_stretch = Geom::L2(p_w - c_w) / Geom::L2(r2_w - c_w);
+
+ Geom::Matrix move = Geom::Matrix (Geom::Translate (-c_w)) *
+ Geom::Matrix (Geom::Rotate(-r2_angle)) *
+ Geom::Matrix (Geom::Scale(move_stretch, scale? move_stretch : 1)) *
+ Geom::Matrix (Geom::Rotate(r2_angle)) *
+ Geom::Matrix (Geom::Rotate(move_angle)) *
+ Geom::Matrix (Geom::Translate (c_w));
+
+ new_transform = gradient->gradientTransform * i2d * move * i2d.inverse();
+ transform_set = true;
break;
}
case POINT_RG_MID1:
{
- NR::Point start = NR::Point (rg->cx.computed, rg->cy.computed);
- NR::Point end = NR::Point (rg->cx.computed + rg->r.computed, rg->cy.computed);
+ Geom::Point start = Geom::Point (rg->cx.computed, rg->cy.computed);
+ Geom::Point end = Geom::Point (rg->cx.computed + rg->r.computed, rg->cy.computed);
double offset = get_offset_between_points (p, start, end);
SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (rg, false);
- sp_gradient_ensure_vector(rg);
- rg->vector.stops.at(point_i).offset = offset;
+ rg->ensureVector();
+ rg->vector.stops.at(point_i).offset = offset;
SPStop* stopi = sp_get_stop_i(vector, point_i);
stopi->offset = offset;
if (write_repr) {
@@ -924,11 +948,11 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
break;
}
case POINT_RG_MID2:
- NR::Point start = NR::Point (rg->cx.computed, rg->cy.computed);
- NR::Point end = NR::Point (rg->cx.computed, rg->cy.computed - rg->r.computed);
+ Geom::Point start = Geom::Point (rg->cx.computed, rg->cy.computed);
+ Geom::Point end = Geom::Point (rg->cx.computed, rg->cy.computed - rg->r.computed);
double offset = get_offset_between_points (p, start, end);
SPGradient *vector = sp_gradient_get_forked_vector_if_necessary(rg, false);
- sp_gradient_ensure_vector(rg);
+ rg->ensureVector();
rg->vector.stops.at(point_i).offset = offset;
SPStop* stopi = sp_get_stop_i(vector, point_i);
stopi->offset = offset;
@@ -938,39 +962,41 @@ sp_item_gradient_set_coords (SPItem *item, guint point_type, guint point_i, NR::
SP_OBJECT (stopi)->requestModified(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG);
}
break;
+ }
+
+ if (transform_set) {
+ gradient->gradientTransform = new_transform;
+ gradient->gradientTransform_set = TRUE;
+ if (write_repr) {
+ gchar *s=sp_svg_transform_write(gradient->gradientTransform);
+ SP_OBJECT_REPR(gradient)->setAttribute("gradientTransform", s);
+ g_free(s);
+ } else {
+ SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
}
- if (transform_set) {
- gradient->gradientTransform = new_transform;
- gradient->gradientTransform_set = TRUE;
- if (write_repr) {
- gchar *s=sp_svg_transform_write(gradient->gradientTransform);
- SP_OBJECT_REPR(gradient)->setAttribute("gradientTransform", s);
- g_free(s);
- } else {
- SP_OBJECT (gradient)->requestModified(SP_OBJECT_MODIFIED_FLAG);
- }
- }
- }
+ }
+ }
}
-SPGradient *
-sp_item_gradient_get_vector (SPItem *item, bool fill_or_stroke)
+SPGradient *sp_item_gradient_get_vector(SPItem *item, bool fill_or_stroke)
{
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
- if (gradient)
- return sp_gradient_get_vector (gradient, false);
+ if (gradient) {
+ return gradient->getVector();
+ }
return NULL;
}
-SPGradientSpread
-sp_item_gradient_get_spread (SPItem *item, bool fill_or_stroke)
+SPGradientSpread sp_item_gradient_get_spread(SPItem *item, bool fill_or_stroke)
{
+ SPGradientSpread spread = SP_GRADIENT_SPREAD_PAD;
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
- if (gradient)
- return sp_gradient_get_spread (gradient);
- return SP_GRADIENT_SPREAD_PAD;
+ if (gradient) {
+ spread = gradient->fetchSpread();
+ }
+ return spread;
}
@@ -979,29 +1005,31 @@ Returns the position of point point_type of the gradient applied to item (either
in desktop coordinates.
*/
-NR::Point
-sp_item_gradient_get_coords (SPItem *item, guint point_type, guint point_i, bool fill_or_stroke)
+Geom::Point sp_item_gradient_get_coords(SPItem *item, guint point_type, guint point_i, bool fill_or_stroke)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_item_gradient_get_coords(%p, %d, %d, %d)", item, point_type, point_i, fill_or_stroke);
+#endif
SPGradient *gradient = sp_item_gradient (item, fill_or_stroke);
- NR::Point p (0, 0);
+ Geom::Point p (0, 0);
if (!gradient)
- return p;
+ return from_2geom(p);
if (SP_IS_LINEARGRADIENT(gradient)) {
SPLinearGradient *lg = SP_LINEARGRADIENT(gradient);
switch (point_type) {
case POINT_LG_BEGIN:
- p = NR::Point (lg->x1.computed, lg->y1.computed);
+ p = Geom::Point (lg->x1.computed, lg->y1.computed);
break;
case POINT_LG_END:
- p = NR::Point (lg->x2.computed, lg->y2.computed);
+ p = Geom::Point (lg->x2.computed, lg->y2.computed);
break;
case POINT_LG_MID:
- {
+ {
gdouble offset = lg->vector.stops.at(point_i).offset;
- p = (1-offset) * NR::Point(lg->x1.computed, lg->y1.computed) + offset * NR::Point(lg->x2.computed, lg->y2.computed);
+ p = (1-offset) * Geom::Point(lg->x1.computed, lg->y1.computed) + offset * Geom::Point(lg->x2.computed, lg->y2.computed);
}
break;
}
@@ -1009,43 +1037,43 @@ sp_item_gradient_get_coords (SPItem *item, guint point_type, guint point_i, bool
SPRadialGradient *rg = SP_RADIALGRADIENT(gradient);
switch (point_type) {
case POINT_RG_CENTER:
- p = NR::Point (rg->cx.computed, rg->cy.computed);
+ p = Geom::Point (rg->cx.computed, rg->cy.computed);
break;
case POINT_RG_FOCUS:
- p = NR::Point (rg->fx.computed, rg->fy.computed);
+ p = Geom::Point (rg->fx.computed, rg->fy.computed);
break;
case POINT_RG_R1:
- p = NR::Point (rg->cx.computed + rg->r.computed, rg->cy.computed);
+ p = Geom::Point (rg->cx.computed + rg->r.computed, rg->cy.computed);
break;
case POINT_RG_R2:
- p = NR::Point (rg->cx.computed, rg->cy.computed - rg->r.computed);
+ p = Geom::Point (rg->cx.computed, rg->cy.computed - rg->r.computed);
break;
case POINT_RG_MID1:
{
gdouble offset = rg->vector.stops.at(point_i).offset;
- p = (1-offset) * NR::Point (rg->cx.computed, rg->cy.computed) + offset * NR::Point(rg->cx.computed + rg->r.computed, rg->cy.computed);
- }
+ p = (1-offset) * Geom::Point (rg->cx.computed, rg->cy.computed) + offset * Geom::Point(rg->cx.computed + rg->r.computed, rg->cy.computed);
+ }
break;
case POINT_RG_MID2:
{
gdouble offset = rg->vector.stops.at(point_i).offset;
- p = (1-offset) * NR::Point (rg->cx.computed, rg->cy.computed) + offset * NR::Point(rg->cx.computed, rg->cy.computed - rg->r.computed);
- }
+ p = (1-offset) * Geom::Point (rg->cx.computed, rg->cy.computed) + offset * Geom::Point(rg->cx.computed, rg->cy.computed - rg->r.computed);
+ }
break;
}
}
- if (SP_GRADIENT(gradient)->units == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) {
- sp_document_ensure_up_to_date(SP_OBJECT_DOCUMENT(item));
- NR::Maybe<NR::Rect> bbox = item->getBounds(NR::identity()); // we need "true" bbox without item_i2d_affine
+ if (SP_GRADIENT(gradient)->getUnits() == SP_GRADIENT_UNITS_OBJECTBOUNDINGBOX) {
+ SP_OBJECT_DOCUMENT(item)->ensureUpToDate();
+ Geom::OptRect bbox = item->getBounds(Geom::identity()); // we need "true" bbox without item_i2d_affine
if (bbox) {
- p *= NR::Matrix(bbox->dimensions()[NR::X], 0,
- 0, bbox->dimensions()[NR::Y],
- bbox->min()[NR::X], bbox->min()[NR::Y]);
+ p *= Geom::Matrix(bbox->dimensions()[Geom::X], 0,
+ 0, bbox->dimensions()[Geom::Y],
+ bbox->min()[Geom::X], bbox->min()[Geom::Y]);
}
}
- p *= NR::Matrix(gradient->gradientTransform) * sp_item_i2d_affine(item);
- return p;
+ p *= Geom::Matrix(gradient->gradientTransform) * (Geom::Matrix)item->i2d_affine();
+ return from_2geom(p);
}
@@ -1055,9 +1083,11 @@ sp_item_gradient_get_coords (SPItem *item, guint point_type, guint point_i, bool
* gr has to be a normalized vector.
*/
-SPGradient *
-sp_item_set_gradient(SPItem *item, SPGradient *gr, SPGradientType type, bool is_fill)
+SPGradient *sp_item_set_gradient(SPItem *item, SPGradient *gr, SPGradientType type, bool is_fill)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_item_set_gradient(%p, %p, %d, %d)", item, gr, type, is_fill);
+#endif
g_return_val_if_fail(item != NULL, NULL);
g_return_val_if_fail(SP_IS_ITEM(item), NULL);
g_return_val_if_fail(gr != NULL, NULL);
@@ -1079,15 +1109,16 @@ sp_item_set_gradient(SPItem *item, SPGradient *gr, SPGradientType type, bool is_
/* Current fill style is the gradient of the required type */
SPGradient *current = SP_GRADIENT(ps);
- //g_print("hrefcount %d count %d\n", SP_OBJECT_HREFCOUNT(ig), count_gradient_hrefs(SP_OBJECT(item), ig));
+ //g_message("hrefcount %d count %d\n", current->hrefcount, count_gradient_hrefs(SP_OBJECT(item), current));
- if (SP_OBJECT_HREFCOUNT(current) == 1 ||
- SP_OBJECT_HREFCOUNT(current) == count_gradient_hrefs(SP_OBJECT(item), current)) {
+ if (!current->isSwatch()
+ && (current->hrefcount == 1 ||
+ current->hrefcount == count_gradient_hrefs(SP_OBJECT(item), current))) {
// current is private and it's either used once, or all its uses are by children of item;
// so just change its href to vector
- if ( current != gr && sp_gradient_get_vector(current, false) != gr ) {
+ if ( current != gr && current->getVector() != gr ) {
/* href is not the vector */
sp_gradient_repr_set_link(SP_OBJECT_REPR(current), gr);
}
@@ -1123,80 +1154,73 @@ sp_item_set_gradient(SPItem *item, SPGradient *gr, SPGradientType type, bool is_
}
}
-static void
-sp_gradient_repr_set_link(Inkscape::XML::Node *repr, SPGradient *link)
+static void sp_gradient_repr_set_link(Inkscape::XML::Node *repr, SPGradient *link)
{
+#ifdef SP_GR_VERBOSE
+ g_message("sp_gradient_repr_set_link(%p, %p)", repr, link);
+#endif
g_return_if_fail(repr != NULL);
- g_return_if_fail(link != NULL);
- g_return_if_fail(SP_IS_GRADIENT(link));
+ if (link) {
+ g_return_if_fail(SP_IS_GRADIENT(link));
+ }
- gchar *ref;
if (link) {
- gchar const *id = SP_OBJECT_ID(link);
- size_t const len = strlen(id);
- ref = (gchar*) alloca(len + 2);
- *ref = '#';
- memcpy(ref + 1, id, len + 1);
+ Glib::ustring ref("#");
+ ref += link->getId();
+ repr->setAttribute("xlink:href", ref.c_str());
} else {
- ref = NULL;
+ repr->setAttribute("xlink:href", 0);
}
-
- repr->setAttribute("xlink:href", ref);
}
-/*
- * Get default normalized gradient vector of document, create if there is none
- */
-SPGradient *
-sp_document_default_gradient_vector(SPDocument *document, guint32 color)
+static void addStop( Inkscape::XML::Node *parent, Glib::ustring const &color, gint opacity, gchar const *offset )
{
- SPDefs *defs = (SPDefs *) SP_DOCUMENT_DEFS(document);
- Inkscape::XML::Document *xml_doc = sp_document_repr_doc(document);
-
- Inkscape::XML::Node *repr = xml_doc->createElement("svg:linearGradient");
-
- repr->setAttribute("inkscape:collect", "always");
- // set here, but removed when it's edited in the gradient editor
- // to further reduce clutter, we could
- // (1) here, search gradients by color and return what is found without duplication
- // (2) in fill & stroke, show only one copy of each gradient in list
-
- Inkscape::XML::Node *stop = xml_doc->createElement("svg:stop");
-
- gchar b[64];
- sp_svg_write_color(b, 64, color);
-
+#ifdef SP_GR_VERBOSE
+ g_message("addStop(%p, %s, %d, %s)", parent, color.c_str(), opacity, offset);
+#endif
+ Inkscape::XML::Node *stop = parent->document()->createElement("svg:stop");
{
- gchar *t = g_strdup_printf("stop-color:%s;stop-opacity:1;", b);
- stop->setAttribute("style", t);
- g_free(t);
+ gchar *tmp = g_strdup_printf( "stop-color:%s;stop-opacity:%d;", color.c_str(), opacity );
+ stop->setAttribute( "style", tmp );
+ g_free(tmp);
}
- stop->setAttribute("offset", "0");
+ stop->setAttribute( "offset", offset );
- repr->appendChild(stop);
+ parent->appendChild(stop);
Inkscape::GC::release(stop);
+}
- stop = xml_doc->createElement("svg:stop");
+/*
+ * Get default normalized gradient vector of document, create if there is none
+ */
+SPGradient *sp_document_default_gradient_vector( SPDocument *document, SPColor const &color, bool singleStop )
+{
+ SPDefs *defs = static_cast<SPDefs *>(SP_DOCUMENT_DEFS(document));
+ Inkscape::XML::Document *xml_doc = document->rdoc;
- {
- gchar *t = g_strdup_printf("stop-color:%s;stop-opacity:0;", b);
- stop->setAttribute("style", t);
- g_free(t);
- }
+ Inkscape::XML::Node *repr = xml_doc->createElement("svg:linearGradient");
- stop->setAttribute("offset", "1");
+ if ( !singleStop ) {
+ repr->setAttribute("inkscape:collect", "always");
+ // set here, but removed when it's edited in the gradient editor
+ // to further reduce clutter, we could
+ // (1) here, search gradients by color and return what is found without duplication
+ // (2) in fill & stroke, show only one copy of each gradient in list
+ }
- repr->appendChild(stop);
- Inkscape::GC::release(stop);
+ Glib::ustring colorStr = color.toString();
+ addStop( repr, colorStr, 1, "0" );
+ if ( !singleStop ) {
+ addStop( repr, colorStr, 0, "1" );
+ }
SP_OBJECT_REPR(defs)->addChild(repr, NULL);
Inkscape::GC::release(repr);
/* fixme: This does not look like nice */
- SPGradient *gr;
- gr = (SPGradient *) document->getObjectByRepr(repr);
+ SPGradient *gr = static_cast<SPGradient *>(document->getObjectByRepr(repr));
g_assert(gr != NULL);
g_assert(SP_IS_GRADIENT(gr));
/* fixme: Maybe add extra sanity check here */
Return the preferred vector for \a o, made from (in order of preference) its current vector,
current fill or stroke color, or from desktop style if \a o is NULL or doesn't have style.
*/
-SPGradient *
-sp_gradient_vector_for_object(SPDocument *const doc, SPDesktop *const desktop,
- SPObject *const o, bool const is_fill)
+SPGradient *sp_gradient_vector_for_object( SPDocument *const doc, SPDesktop *const desktop,
+ SPObject *const o, bool const is_fill, bool singleStop )
{
- guint32 rgba = 0;
+ SPColor color;
if (o == NULL || SP_OBJECT_STYLE(o) == NULL) {
- rgba = sp_desktop_get_color(desktop, is_fill);
+ color = sp_desktop_get_color(desktop, is_fill);
} else {
// take the color of the object
SPStyle const &style = *SP_OBJECT_STYLE(o);
@@ -1223,21 +1246,21 @@ sp_gradient_vector_for_object(SPDocument *const doc, SPDesktop *const desktop,
? style.fill
: style.stroke );
if (paint.isPaintserver()) {
- SPObject *server = is_fill? SP_OBJECT_STYLE_FILL_SERVER(o) : SP_OBJECT_STYLE_STROKE_SERVER(o);
- if (SP_IS_GRADIENT (server)) {
- return sp_gradient_get_vector(SP_GRADIENT (server), TRUE);
+ SPObject *server = is_fill? o->style->getFillPaintServer() : o->style->getStrokePaintServer();
+ if ( SP_IS_GRADIENT(server) ) {
+ return SP_GRADIENT(server)->getVector(true);
} else {
- rgba = sp_desktop_get_color(desktop, is_fill);
+ color = sp_desktop_get_color(desktop, is_fill);
}
} else if (paint.isColor()) {
- rgba = sp_color_get_rgba32_ualpha(&paint.value.color, 0xff);
+ color = paint.value.color;
} else {
// if o doesn't use flat color, then take current color of the desktop.
- rgba = sp_desktop_get_color(desktop, is_fill);
+ color = sp_desktop_get_color(desktop, is_fill);
}
}
- return sp_document_default_gradient_vector(doc, rgba);
+ return sp_document_default_gradient_vector( doc, color, singleStop );
}
@@ -1250,4 +1273,4 @@ sp_gradient_vector_for_object(SPDocument *const doc, SPDesktop *const desktop,
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :