![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/src/sp-star.cpp b/src/sp-star.cpp
index 2f3dcd6c1f23bf6e5767cbf65609f3d8d078e98c..c1581a6d6d7bc3baa131f52680b1bde2f0d31b00 100644 (file)
--- a/src/sp-star.cpp
+++ b/src/sp-star.cpp
* Released under GNU GPL, read the file 'COPYING' for more information
*/
-#include "config.h"
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include <cstring>
+#include <string>
#include <glibmm/i18n.h>
#include "svg/svg.h"
#include "attributes.h"
#include "display/curve.h"
#include "xml/repr.h"
+#include "document.h"
#include "sp-star.h"
static void sp_star_init (SPStar *star);
static void sp_star_build (SPObject * object, SPDocument * document, Inkscape::XML::Node * repr);
-static Inkscape::XML::Node *sp_star_write (SPObject *object, Inkscape::XML::Node *repr, guint flags);
+static Inkscape::XML::Node *sp_star_write (SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);
static void sp_star_set (SPObject *object, unsigned int key, const gchar *value);
static void sp_star_update (SPObject *object, SPCtx *ctx, guint flags);
static gchar * sp_star_description (SPItem * item);
-static void sp_star_snappoints(SPItem const *item, SnapPointsIter p);
+static void sp_star_snappoints(SPItem const *item, SnapPointsIter p, Inkscape::SnapPreferences const *snapprefs);
static void sp_star_set_shape (SPShape *shape);
+static void sp_star_update_patheffect (SPLPEItem *lpeitem, bool write);
static SPShapeClass *parent_class;
GObjectClass * gobject_class;
SPObjectClass * sp_object_class;
SPItemClass * item_class;
- SPPathClass * path_class;
+ SPLPEItemClass * lpe_item_class;
SPShapeClass * shape_class;
gobject_class = (GObjectClass *) klass;
sp_object_class = (SPObjectClass *) klass;
item_class = (SPItemClass *) klass;
- path_class = (SPPathClass *) klass;
+ lpe_item_class = (SPLPEItemClass *) klass;
shape_class = (SPShapeClass *) klass;
parent_class = (SPShapeClass *)g_type_class_ref (SP_TYPE_SHAPE);
item_class->description = sp_star_description;
item_class->snappoints = sp_star_snappoints;
+ lpe_item_class->update_patheffect = sp_star_update_patheffect;
+
shape_class->set_shape = sp_star_set_shape;
}
sp_star_init (SPStar * star)
{
star->sides = 5;
- star->center = NR::Point(0, 0);
+ star->center = Geom::Point(0, 0);
star->r[0] = 1.0;
star->r[1] = 0.001;
star->arg[0] = star->arg[1] = 0.0;
@@ -121,19 +129,19 @@ sp_star_build (SPObject * object, SPDocument * document, Inkscape::XML::Node * r
}
static Inkscape::XML::Node *
-sp_star_write (SPObject *object, Inkscape::XML::Node *repr, guint flags)
+sp_star_write (SPObject *object, Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags)
{
SPStar *star = SP_STAR (object);
if ((flags & SP_OBJECT_WRITE_BUILD) && !repr) {
- repr = sp_repr_new ("svg:path");
+ repr = xml_doc->createElement("svg:path");
}
if (flags & SP_OBJECT_WRITE_EXT) {
repr->setAttribute("sodipodi:type", "star");
sp_repr_set_int (repr, "sodipodi:sides", star->sides);
- sp_repr_set_svg_double(repr, "sodipodi:cx", star->center[NR::X]);
- sp_repr_set_svg_double(repr, "sodipodi:cy", star->center[NR::Y]);
+ sp_repr_set_svg_double(repr, "sodipodi:cx", star->center[Geom::X]);
+ sp_repr_set_svg_double(repr, "sodipodi:cy", star->center[Geom::Y]);
sp_repr_set_svg_double(repr, "sodipodi:r1", star->r[0]);
sp_repr_set_svg_double(repr, "sodipodi:r2", star->r[1]);
sp_repr_set_svg_double(repr, "sodipodi:arg1", star->arg[0]);
sp_repr_set_svg_double(repr, "inkscape:randomized", star->randomized);
}
- sp_star_set_shape ((SPShape *) star);
- char *d = sp_svg_write_path (SP_CURVE_BPATH(((SPShape *) star)->curve));
- repr->setAttribute("d", d);
- g_free (d);
+ sp_star_set_shape ((SPShape *) star);
+ char *d = sp_svg_write_path (((SPShape *) star)->curve->get_pathvector());
+ repr->setAttribute("d", d);
+ g_free (d);
if (((SPObjectClass *) (parent_class))->write)
- ((SPObjectClass *) (parent_class))->write (object, repr, flags);
+ ((SPObjectClass *) (parent_class))->write (object, xml_doc, repr, flags);
return repr;
}
object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_SODIPODI_CX:
- if (!sp_svg_length_read_ldd (value, &unit, NULL, &star->center[NR::X]) ||
+ if (!sp_svg_length_read_ldd (value, &unit, NULL, &star->center[Geom::X]) ||
(unit == SVGLength::EM) ||
(unit == SVGLength::EX) ||
(unit == SVGLength::PERCENT)) {
- star->center[NR::X] = 0.0;
+ star->center[Geom::X] = 0.0;
}
object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_SODIPODI_CY:
- if (!sp_svg_length_read_ldd (value, &unit, NULL, &star->center[NR::Y]) ||
+ if (!sp_svg_length_read_ldd (value, &unit, NULL, &star->center[Geom::Y]) ||
(unit == SVGLength::EM) ||
(unit == SVGLength::EX) ||
(unit == SVGLength::PERCENT)) {
- star->center[NR::Y] = 0.0;
+ star->center[Geom::Y] = 0.0;
}
object->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
break;
((SPObjectClass *) parent_class)->update (object, ctx, flags);
}
+static void
+sp_star_update_patheffect(SPLPEItem *lpeitem, bool write)
+{
+ SPShape *shape = (SPShape *) lpeitem;
+ sp_star_set_shape(shape);
+
+ if (write) {
+ Inkscape::XML::Node *repr = SP_OBJECT_REPR(shape);
+ if ( shape->curve != NULL ) {
+ gchar *str = sp_svg_write_path(shape->curve->get_pathvector());
+ repr->setAttribute("d", str);
+ g_free(str);
+ } else {
+ repr->setAttribute("d", NULL);
+ }
+ }
+
+ ((SPObject *)shape)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
+}
+
static gchar *
sp_star_description (SPItem *item)
{
/**
Returns a unit-length vector at 90 degrees to the direction from o to n
*/
-static NR::Point
-rot90_rel (NR::Point o, NR::Point n)
+static Geom::Point
+rot90_rel (Geom::Point o, Geom::Point n)
{
- return ((1/NR::L2(n - o)) * NR::Point ((n - o)[NR::Y], (o - n)[NR::X]));
+ return ((1/Geom::L2(n - o)) * Geom::Point ((n - o)[Geom::Y], (o - n)[Geom::X]));
}
/**
- returned value is unchanged when the point is moved by less than 1/1024 of px
*/
static guint32
-point_unique_int (NR::Point o)
+point_unique_int (Geom::Point o)
{
return ((guint32)
65536 *
- (((int) floor (o[NR::X] * 64)) % 1024 + ((int) floor (o[NR::X] * 1024)) % 64)
+ (((int) floor (o[Geom::X] * 64)) % 1024 + ((int) floor (o[Geom::X] * 1024)) % 64)
+
- (((int) floor (o[NR::Y] * 64)) % 1024 + ((int) floor (o[NR::Y] * 1024)) % 64)
+ (((int) floor (o[Geom::Y] * 64)) % 1024 + ((int) floor (o[Geom::Y] * 1024)) % 64)
);
}
return ( lcg / 4294967296. ) - 0.5;
}
-static NR::Point
+static Geom::Point
sp_star_get_curvepoint (SPStar *star, SPStarPoint point, gint index, bool previ)
{
// the point whose neighboring curve handle we're calculating
- NR::Point o = sp_star_get_xy (star, point, index);
+ Geom::Point o = sp_star_get_xy (star, point, index);
// indices of previous and next points
gint pi = (index > 0)? (index - 1) : (star->sides - 1);
@@ -348,25 +376,25 @@ sp_star_get_curvepoint (SPStar *star, SPStarPoint point, gint index, bool previ)
SPStarPoint other = (point == SP_STAR_POINT_KNOT2? SP_STAR_POINT_KNOT1 : SP_STAR_POINT_KNOT2);
// the neighbors of o; depending on flatsided, they're either the same type (polygon) or the other type (star)
- NR::Point prev = (star->flatsided? sp_star_get_xy (star, point, pi) : sp_star_get_xy (star, other, point == SP_STAR_POINT_KNOT2? index : pi));
- NR::Point next = (star->flatsided? sp_star_get_xy (star, point, ni) : sp_star_get_xy (star, other, point == SP_STAR_POINT_KNOT1? index : ni));
+ Geom::Point prev = (star->flatsided? sp_star_get_xy (star, point, pi) : sp_star_get_xy (star, other, point == SP_STAR_POINT_KNOT2? index : pi));
+ Geom::Point next = (star->flatsided? sp_star_get_xy (star, point, ni) : sp_star_get_xy (star, other, point == SP_STAR_POINT_KNOT1? index : ni));
// prev-next midpoint
- NR::Point mid = 0.5 * (prev + next);
+ Geom::Point mid = 0.5 * (prev + next);
// point to which we direct the bissector of the curve handles;
// it's far enough outside the star on the perpendicular to prev-next through mid
- NR::Point biss = mid + 100000 * rot90_rel (mid, next);
+ Geom::Point biss = mid + 100000 * rot90_rel (mid, next);
// lengths of vectors to prev and next
- gdouble prev_len = NR::L2 (prev - o);
- gdouble next_len = NR::L2 (next - o);
+ gdouble prev_len = Geom::L2 (prev - o);
+ gdouble next_len = Geom::L2 (next - o);
// unit-length vector perpendicular to o-biss
- NR::Point rot = rot90_rel (o, biss);
+ Geom::Point rot = rot90_rel (o, biss);
// multiply rot by star->rounded coefficient and the distance to the star point; flip for next
- NR::Point ret;
+ Geom::Point ret;
if (previ) {
ret = (star->rounded * prev_len) * rot;
} else {
@@ -381,11 +409,11 @@ sp_star_get_curvepoint (SPStar *star, SPStarPoint point, gint index, bool previ)
guint32 seed = point_unique_int (o);
// randomly rotate (by step 3 from the seed) and scale (by step 4) the vector
- ret = ret * NR::Matrix (NR::rotate (star->randomized * M_PI * rnd (seed, 3)));
+ ret = ret * Geom::Matrix (Geom::Rotate (star->randomized * M_PI * rnd (seed, 3)));
ret *= ( 1 + star->randomized * rnd (seed, 4));
// the randomized corner point
- NR::Point o_randomized = sp_star_get_xy (star, point, index, true);
+ Geom::Point o_randomized = sp_star_get_xy (star, point, index, true);
return o_randomized + ret;
}
{
SPStar *star = SP_STAR (shape);
- SPCurve *c = sp_curve_new ();
-
+ SPCurve *c = new SPCurve ();
+
gint sides = star->sides;
bool not_rounded = (fabs (star->rounded) < 1e-4);
// other places that call that function (e.g. the knotholder) need the exact point
// draw 1st segment
- sp_curve_moveto (c, sp_star_get_xy (star, SP_STAR_POINT_KNOT1, 0, true));
+ c->moveto(sp_star_get_xy (star, SP_STAR_POINT_KNOT1, 0, true));
if (star->flatsided == false) {
if (not_rounded) {
- sp_curve_lineto (c, sp_star_get_xy (star, SP_STAR_POINT_KNOT2, 0, true));
+ c->lineto(sp_star_get_xy (star, SP_STAR_POINT_KNOT2, 0, true));
} else {
- sp_curve_curveto (c,
- sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, 0, NEXT),
+ c->curveto(sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, 0, NEXT),
sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT2, 0, PREV),
sp_star_get_xy (star, SP_STAR_POINT_KNOT2, 0, true));
}
// draw all middle segments
for (gint i = 1; i < sides; i++) {
if (not_rounded) {
- sp_curve_lineto (c, sp_star_get_xy (star, SP_STAR_POINT_KNOT1, i, true));
+ c->lineto(sp_star_get_xy (star, SP_STAR_POINT_KNOT1, i, true));
} else {
if (star->flatsided == false) {
- sp_curve_curveto (c,
- sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT2, i - 1, NEXT),
+ c->curveto(sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT2, i - 1, NEXT),
sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, i, PREV),
sp_star_get_xy (star, SP_STAR_POINT_KNOT1, i, true));
} else {
- sp_curve_curveto (c,
- sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, i - 1, NEXT),
+ c->curveto(sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, i - 1, NEXT),
sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, i, PREV),
sp_star_get_xy (star, SP_STAR_POINT_KNOT1, i, true));
}
if (star->flatsided == false) {
if (not_rounded) {
- sp_curve_lineto (c, sp_star_get_xy (star, SP_STAR_POINT_KNOT2, i, true));
+ c->lineto(sp_star_get_xy (star, SP_STAR_POINT_KNOT2, i, true));
} else {
- sp_curve_curveto (c,
- sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, i, NEXT),
+ c->curveto(sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, i, NEXT),
sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT2, i, PREV),
sp_star_get_xy (star, SP_STAR_POINT_KNOT2, i, true));
}
}
}
-
+
// draw last segment
if (not_rounded) {
- sp_curve_lineto (c, sp_star_get_xy (star, SP_STAR_POINT_KNOT1, 0, true));
+ c->lineto(sp_star_get_xy (star, SP_STAR_POINT_KNOT1, 0, true));
} else {
if (star->flatsided == false) {
- sp_curve_curveto (c,
- sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT2, sides - 1, NEXT),
+ c->curveto(sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT2, sides - 1, NEXT),
sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, 0, PREV),
sp_star_get_xy (star, SP_STAR_POINT_KNOT1, 0, true));
} else {
- sp_curve_curveto (c,
- sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, sides - 1, NEXT),
+ c->curveto(sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, sides - 1, NEXT),
sp_star_get_curvepoint (star, SP_STAR_POINT_KNOT1, 0, PREV),
sp_star_get_xy (star, SP_STAR_POINT_KNOT1, 0, true));
}
}
- sp_curve_closepath (c);
- sp_shape_set_curve_insync (SP_SHAPE (star), c, TRUE);
- sp_curve_unref (c);
+ c->closepath();
+
+ /* Reset the shape'scurve to the "original_curve"
+ * This is very important for LPEs to work properly! (the bbox might be recalculated depending on the curve in shape)*/
+ sp_shape_set_curve_insync (shape, c, TRUE);
+ if (sp_lpe_item_has_path_effect(SP_LPE_ITEM(shape)) && sp_lpe_item_path_effects_enabled(SP_LPE_ITEM(shape))) {
+ SPCurve *c_lpe = c->copy();
+ bool success = sp_lpe_item_perform_path_effect(SP_LPE_ITEM (shape), c_lpe);
+ if (success) {
+ sp_shape_set_curve_insync (shape, c_lpe, TRUE);
+ }
+ c_lpe->unref();
+ }
+ c->unref();
}
void
-sp_star_position_set (SPStar *star, gint sides, NR::Point center, gdouble r1, gdouble r2, gdouble arg1, gdouble arg2, bool isflat, double rounded, double randomized)
+sp_star_position_set (SPStar *star, gint sides, Geom::Point center, gdouble r1, gdouble r2, gdouble arg1, gdouble arg2, bool isflat, double rounded, double randomized)
{
g_return_if_fail (star != NULL);
g_return_if_fail (SP_IS_STAR (star));
-
+
star->sides = CLAMP (sides, 3, 1024);
star->center = center;
star->r[0] = MAX (r1, 0.001);
@@ -495,12 +528,25 @@ sp_star_position_set (SPStar *star, gint sides, NR::Point center, gdouble r1, gd
SP_OBJECT(star)->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG);
}
-/* fixme: We should use all corners of star (Lauris) */
-
-static void sp_star_snappoints(SPItem const *item, SnapPointsIter p)
+static void sp_star_snappoints(SPItem const *item, SnapPointsIter p, Inkscape::SnapPreferences const *snapprefs)
{
+ // We will determine the star's midpoint ourselves, instead of trusting on the base class
+ // Therefore setSnapObjectMidpoints() is set to false temporarily
+ Inkscape::SnapPreferences local_snapprefs = *snapprefs;
+ local_snapprefs.setSnapObjectMidpoints(false);
+
if (((SPItemClass *) parent_class)->snappoints) {
- ((SPItemClass *) parent_class)->snappoints (item, p);
+ ((SPItemClass *) parent_class)->snappoints (item, p, &local_snapprefs);
+ }
+
+ // Help enforcing strict snapping, i.e. only return nodes when we're snapping nodes to nodes or a guide to nodes
+ if (!(snapprefs->getSnapModeNode() || snapprefs->getSnapModeGuide())) {
+ return;
+ }
+
+ if (snapprefs->getSnapObjectMidpoints()) {
+ Geom::Matrix const i2d (sp_item_i2d_affine (item));
+ *p = SP_STAR(item)->center * i2d;
}
}
* Initial item coordinate system is same as document coordinate system.
*/
-NR::Point
+Geom::Point
sp_star_get_xy (SPStar *star, SPStarPoint point, gint index, bool randomized)
{
gdouble darg = 2.0 * M_PI / (double) star->sides;
double arg = star->arg[point];
arg += index * darg;
- NR::Point xy = star->r[point] * NR::Point(cos(arg), sin(arg)) + star->center;
+ Geom::Point xy = star->r[point] * Geom::Point(cos(arg), sin(arg)) + star->center;
if (!randomized || star->randomized == 0) {
// return the exact point
// the full range (corresponding to star->randomized == 1.0) is equal to the star's diameter
double range = 2 * MAX (star->r[0], star->r[1]);
// find out the random displacement; x is controlled by step 1 from the seed, y by the step 2
- NR::Point shift (star->randomized * range * rnd (seed, 1), star->randomized * range * rnd (seed, 2));
+ Geom::Point shift (star->randomized * range * rnd (seed, 1), star->randomized * range * rnd (seed, 2));
// add the shift to the exact point
return xy + shift;
}