diff options
Diffstat (limited to 'src/live_effects/parameter/pointparam-knotholder.cpp')
| -rw-r--r-- | src/live_effects/parameter/pointparam-knotholder.cpp | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/src/live_effects/parameter/pointparam-knotholder.cpp b/src/live_effects/parameter/pointparam-knotholder.cpp new file mode 100644 index 000000000..df8c18d41 --- /dev/null +++ b/src/live_effects/parameter/pointparam-knotholder.cpp @@ -0,0 +1,267 @@ +#define INKSCAPE_LPE_POINTPARAM_KNOTHOLDER_C
+
+/*
+ * Container for PointParamKnotHolder visual handles
+ *
+ * Authors:
+ * Johan Engelen <goejendaagh@zonnet.nl>
+ *
+ * Copyright (C) 2008 authors
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "live_effects/parameter/pointparam-knotholder.h"
+#include "live_effects/lpeobject.h"
+#include "document.h"
+#include "sp-shape.h"
+#include "knot.h"
+#include "knotholder.h"
+#include "knot-holder-entity.h"
+
+#include <libnr/nr-matrix-div.h>
+#include <glibmm/i18n.h>
+#include <2geom/point.h>
+#include <2geom/matrix.h>
+#include "svg/stringstream.h"
+#include "xml/repr.h"
+
+class SPDesktop;
+
+static void pointparam_knot_clicked_handler (SPKnot *knot, guint state, gpointer data);
+static void pointparam_knot_moved_handler(SPKnot *knot, NR::Point const *p, guint state, gpointer data);
+static void pointparam_knot_ungrabbed_handler (SPKnot *knot, unsigned int state, PointParamKnotHolder *kh);
+static void pointparam_knot_holder_class_init(PointParamKnotHolderClass *klass);
+
+void pointparam_knot_holder_dispose(GObject *object);
+
+static SPKnotHolderClass *parent_class;
+
+/**
+ * Registers SPKnotHolder class and returns its type number.
+ */
+GType pointparam_knot_holder_get_type()
+{
+ static GType type = 0;
+ if (!type) {
+ GTypeInfo info = {
+ sizeof(PointParamKnotHolderClass),
+ NULL, /* base_init */
+ NULL, /* base_finalize */
+ (GClassInitFunc) pointparam_knot_holder_class_init,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ sizeof (PointParamKnotHolder),
+ 16, /* n_preallocs */
+ NULL,
+ NULL
+ };
+ type = g_type_register_static (G_TYPE_OBJECT, "InkscapePointParamKnotHolder", &info, (GTypeFlags) 0);
+ }
+ return type;
+}
+
+/**
+ * PointParamKnotHolder vtable initialization.
+ */
+static void pointparam_knot_holder_class_init(PointParamKnotHolderClass *klass)
+{
+ GObjectClass *gobject_class;
+ gobject_class = (GObjectClass *) klass;
+
+ parent_class = (SPKnotHolderClass*) g_type_class_peek_parent(klass);
+ gobject_class->dispose = pointparam_knot_holder_dispose;
+}
+
+PointParamKnotHolder *pointparam_knot_holder_new(SPDesktop *desktop, SPObject *lpeobject, const gchar * key, SPItem *item)
+{
+ g_return_val_if_fail(desktop != NULL, NULL);
+ g_return_val_if_fail(item != NULL, NULL);
+ g_return_val_if_fail(SP_IS_ITEM(item), NULL);
+
+ PointParamKnotHolder *knot_holder = (PointParamKnotHolder*)g_object_new (INKSCAPE_TYPE_POINTPARAM_KNOT_HOLDER, 0);
+ knot_holder->desktop = desktop;
+ knot_holder->item = item;
+ knot_holder->lpeobject = LIVEPATHEFFECT(lpeobject);
+ g_object_ref(G_OBJECT(item));
+ g_object_ref(G_OBJECT(lpeobject));
+ knot_holder->entity = NULL;
+
+ knot_holder->released = NULL;
+
+ knot_holder->repr = lpeobject->repr;
+ knot_holder->repr_key = key;
+
+ knot_holder->local_change = FALSE;
+
+ return knot_holder;
+}
+
+void pointparam_knot_holder_dispose(GObject *object) {
+ PointParamKnotHolder *kh = G_TYPE_CHECK_INSTANCE_CAST((object), INKSCAPE_TYPE_POINTPARAM_KNOT_HOLDER, PointParamKnotHolder);
+
+ g_object_unref(G_OBJECT(kh->item));
+ g_object_unref(G_OBJECT(kh->lpeobject));
+ while (kh->entity) {
+ SPKnotHolderEntity *e = (SPKnotHolderEntity *) kh->entity->data;
+ g_signal_handler_disconnect(e->knot, e->_click_handler_id);
+ g_signal_handler_disconnect(e->knot, e->_ungrab_handler_id);
+ /* unref should call destroy */
+ g_object_unref(e->knot);
+ g_free(e);
+ kh->entity = g_slist_remove(kh->entity, e);
+ }
+}
+
+void pointparam_knot_holder_destroy(PointParamKnotHolder *kh) {
+ g_object_unref(kh);
+}
+
+void pointparam_knot_holder_add_full(
+ PointParamKnotHolder *knot_holder,
+ Geom::Point & p,
+ void (* knot_click) (SPItem *item, guint state),
+ SPKnotShapeType shape,
+ SPKnotModeType mode,
+ guint32 color,
+ const gchar *tip )
+{
+ g_return_if_fail(knot_holder != NULL);
+
+ SPItem *item = SP_ITEM(knot_holder->item);
+
+ /* create new SPKnotHolderEntry */
+ SPKnotHolderEntity *e = g_new(SPKnotHolderEntity, 1);
+ e->knot = sp_knot_new(knot_holder->desktop, tip);
+ e->knot_set = NULL;
+ e->knot_get = NULL;
+ if (knot_click) {
+ e->knot_click = knot_click;
+ } else {
+ e->knot_click = NULL;
+ }
+
+ g_object_set(G_OBJECT (e->knot->item), "shape", shape, NULL);
+ g_object_set(G_OBJECT (e->knot->item), "mode", mode, NULL);
+
+ e->knot->fill [SP_KNOT_STATE_NORMAL] = color;
+ g_object_set (G_OBJECT (e->knot->item), "fill_color", color, NULL);
+
+ knot_holder->entity = g_slist_append(knot_holder->entity, e);
+
+ /* Move to current point. */
+ NR::Point dp = p * sp_item_i2d_affine(item);
+ sp_knot_set_position(e->knot, &dp, SP_KNOT_STATE_NORMAL);
+
+ e->handler_id = g_signal_connect(e->knot, "moved", G_CALLBACK(pointparam_knot_moved_handler), knot_holder);
+ e->_click_handler_id = g_signal_connect(e->knot, "clicked", G_CALLBACK(pointparam_knot_clicked_handler), knot_holder);
+ e->_ungrab_handler_id = g_signal_connect(e->knot, "ungrabbed", G_CALLBACK(pointparam_knot_ungrabbed_handler), knot_holder);
+
+ sp_knot_show(e->knot);
+}
+
+/**
+ * \param p In desktop coordinates.
+ */
+
+ // don't write to XML yet...
+//static
+void pointparam_knotholder_update_knots(PointParamKnotHolder *knot_holder, SPItem *item)
+{
+
+ NR::Matrix const i2d(sp_item_i2d_affine(item));
+/*
+ for (GSList *el = knot_holder->entity; el; el = el->next) {
+ SPKnotHolderEntity *e = (SPKnotHolderEntity *) el->data;
+ GObject *kob = e->knot;
+
+ NR::Point dp( e->knot_get(item) * i2d );
+ g_signal_handler_block(kob, e->handler_id);
+ sp_knot_set_position(e->knot, &dp, SP_KNOT_STATE_NORMAL);
+ g_signal_handler_unblock(kob, e->handler_id);
+ }
+
+ knot_holder->lpeobject->lpe->setParameter(np->repr_key, svgpath);
+
+ knot_holder->lpeobject->requestModified(SP_OBJECT_MODIFIED_FLAG);
+*/
+}
+
+static void pointparam_knot_clicked_handler(SPKnot *knot, guint state, gpointer data)
+{
+
+ SPKnotHolder *knot_holder = (SPKnotHolder *) data;
+ SPItem *item = SP_ITEM (knot_holder->item);
+/*
+ g_object_ref(knot_holder);
+ for (GSList *el = knot_holder->entity; el; el = el->next) {
+ SPKnotHolderEntity *e = (SPKnotHolderEntity *) el->data;
+ if (e->knot == knot) {
+ if (e->knot_click) {
+ e->knot_click(item, state);
+ }
+ break;
+ }
+ }
+
+ if (SP_IS_SHAPE(item)) {
+ sp_shape_set_shape(SP_SHAPE(item));
+ }
+
+ knotholder_update_knots(knot_holder, item);
+ g_object_unref(knot_holder);
+
+ // for drag, this is done by ungrabbed_handler, but for click we must do it here
+ sp_document_done(SP_OBJECT_DOCUMENT(knot_holder->item), SP_VERB_CONTEXT_LPE,
+ _("Change LPE point parameter"));
+*/
+}
+
+static void pointparam_knot_moved_handler(SPKnot *knot, NR::Point const *p, guint state, gpointer data)
+{
+
+ SPKnotHolder *knot_holder = (SPKnotHolder *) data;
+ SPItem *item = SP_ITEM (knot_holder->item);
+/* // this was a local change and the knotholder does not need to be recreated:
+ knot_holder->local_change = TRUE;
+
+ for (GSList *el = knot_holder->entity; el; el = el->next) {
+ SPKnotHolderEntity *e = (SPKnotHolderEntity *) el->data;
+ if (e->knot == knot) {
+ NR::Point const q = *p / sp_item_i2d_affine(item);
+ e->knot_set(item, q, e->knot->drag_origin / sp_item_i2d_affine(item), state);
+ break;
+ }
+ }
+
+ if (SP_IS_SHAPE (item)) {
+ sp_shape_set_shape(SP_SHAPE (item));
+ }
+
+ knotholder_update_knots(knot_holder, item);
+*/
+}
+
+static void pointparam_knot_ungrabbed_handler(SPKnot *knot, unsigned int /*state*/, PointParamKnotHolder *kh)
+{
+ NR::Matrix const i2d(sp_item_i2d_affine(kh->item));
+ NR::Point pos = sp_knot_position(knot) / i2d;
+
+ Inkscape::SVGOStringStream os;
+ os << pos[0] << "," << pos[1];
+
+ kh->repr->setAttribute(kh->repr_key , os.str().c_str());
+
+ sp_document_done(SP_OBJECT_DOCUMENT (kh->lpeobject), SP_VERB_CONTEXT_LPE, _("Change LPE point parameter"));
+}
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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