summaryrefslogtreecommitdiffstats
path: root/src/live_effects/parameter/vector.cpp
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--src/live_effects/parameter/vector.cpp250
1 files changed, 250 insertions, 0 deletions
diff --git a/src/live_effects/parameter/vector.cpp b/src/live_effects/parameter/vector.cpp
new file mode 100644
index 0000000..16b83fb
--- /dev/null
+++ b/src/live_effects/parameter/vector.cpp
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) Johan Engelen 2008 <j.b.c.engelen@utwente.nl>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "vector.h"
+
+#include <glibmm/i18n.h>
+
+#include "live_effects/effect.h"
+#include "svg/svg.h"
+#include "svg/stringstream.h"
+#include "ui/icon-names.h"
+#include "ui/knot/knot-holder.h"
+#include "ui/knot/knot-holder-entity.h"
+#include "ui/widget/registered-widget.h"
+
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+VectorParam::VectorParam( const Glib::ustring& label, const Glib::ustring& tip,
+ const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
+ Effect* effect, Geom::Point default_vector)
+ : Parameter(label, tip, key, wr, effect),
+ defvalue(default_vector),
+ origin(0.,0.),
+ vector(default_vector)
+{
+}
+
+VectorParam::~VectorParam()
+= default;
+
+void
+VectorParam::param_set_default()
+{
+ setOrigin(Geom::Point(0.,0.));
+ setVector(defvalue);
+}
+
+void
+VectorParam::param_update_default(Geom::Point default_point)
+{
+ defvalue = default_point;
+}
+
+void
+VectorParam::param_update_default(const gchar * default_point)
+{
+ gchar ** strarray = g_strsplit(default_point, ",", 2);
+ double newx, newy;
+ unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
+ success += sp_svg_number_read_d(strarray[1], &newy);
+ g_strfreev (strarray);
+ if (success == 2) {
+ param_update_default( Geom::Point(newx, newy) );
+ }
+}
+
+bool
+VectorParam::param_readSVGValue(const gchar * strvalue)
+{
+ gchar ** strarray = g_strsplit(strvalue, ",", 4);
+ if (!strarray) {
+ return false;
+ }
+ double val[4];
+ unsigned int i = 0;
+ while (i < 4 && strarray[i]) {
+ if (sp_svg_number_read_d(strarray[i], &val[i]) != 0) {
+ i++;
+ } else {
+ break;
+ }
+ }
+ g_strfreev (strarray);
+ if (i == 4) {
+ setOrigin( Geom::Point(val[0], val[1]) );
+ setVector( Geom::Point(val[2], val[3]) );
+ return true;
+ }
+ return false;
+}
+
+Glib::ustring
+VectorParam::param_getSVGValue() const
+{
+ Inkscape::SVGOStringStream os;
+ os << origin << " , " << vector;
+ return os.str();
+}
+
+Glib::ustring
+VectorParam::param_getDefaultSVGValue() const
+{
+ Inkscape::SVGOStringStream os;
+ os << defvalue;
+ return os.str();
+}
+
+Gtk::Widget *
+VectorParam::param_newWidget()
+{
+ Inkscape::UI::Widget::RegisteredVector * pointwdg = Gtk::manage(
+ new Inkscape::UI::Widget::RegisteredVector( param_label,
+ param_tooltip,
+ param_key,
+ *param_wr,
+ param_effect->getRepr(),
+ param_effect->getSPDoc() ) );
+ pointwdg->setPolarCoords();
+ pointwdg->setValue( vector, origin );
+ pointwdg->clearProgrammatically();
+ pointwdg->set_undo_parameters(_("Change vector parameter"), INKSCAPE_ICON("dialog-path-effects"));
+
+ Gtk::Box * hbox = Gtk::manage( new Gtk::Box(Gtk::ORIENTATION_HORIZONTAL) );
+ hbox->pack_start(*pointwdg, true, true);
+ hbox->show_all_children();
+
+ return dynamic_cast<Gtk::Widget *> (hbox);
+}
+
+void
+VectorParam::set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector)
+{
+ setValues(new_origin, new_vector);
+ param_write_to_repr(param_getSVGValue().c_str());
+}
+
+void
+VectorParam::param_transform_multiply(Geom::Affine const& postmul, bool /*set*/)
+{
+ set_and_write_new_values( origin * postmul, vector * postmul.withoutTranslation() );
+}
+
+
+void
+VectorParam::set_vector_oncanvas_looks(Inkscape::CanvasItemCtrlShape shape,
+ Inkscape::CanvasItemCtrlMode mode,
+ guint32 color)
+{
+ vec_knot_shape = shape;
+ vec_knot_mode = mode;
+ vec_knot_color = color;
+}
+
+void
+VectorParam::set_origin_oncanvas_looks(Inkscape::CanvasItemCtrlShape shape,
+ Inkscape::CanvasItemCtrlMode mode,
+ guint32 color)
+{
+ ori_knot_shape = shape;
+ ori_knot_mode = mode;
+ ori_knot_color = color;
+}
+
+void
+VectorParam::set_oncanvas_color(guint32 color)
+{
+ vec_knot_color = color;
+ ori_knot_color = color;
+}
+
+class VectorParamKnotHolderEntity_Origin : public KnotHolderEntity {
+public:
+ VectorParamKnotHolderEntity_Origin(VectorParam *p) : param(p) { }
+ ~VectorParamKnotHolderEntity_Origin() override = default;
+
+ void knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint state) override {
+ Geom::Point const s = snap_knot_position(p, state);
+ param->setOrigin(s);
+ param->set_and_write_new_values(param->origin, param->vector);
+ sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
+ };
+ Geom::Point knot_get() const override {
+ return param->origin;
+ };
+ void knot_ungrabbed(Geom::Point const &p, Geom::Point const &origin, guint state) override
+ {
+ param->param_effect->refresh_widgets = true;
+ param->write_to_SVG();
+ };
+ void knot_click(guint /*state*/) override{
+ g_print ("This is the origin handle associated to parameter '%s'\n", param->param_key.c_str());
+ };
+
+private:
+ VectorParam *param;
+};
+
+class VectorParamKnotHolderEntity_Vector : public KnotHolderEntity {
+public:
+ VectorParamKnotHolderEntity_Vector(VectorParam *p) : param(p) { }
+ ~VectorParamKnotHolderEntity_Vector() override = default;
+
+ void knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint /*state*/) override {
+ Geom::Point const s = p - param->origin;
+ /// @todo implement angle snapping when holding CTRL
+ param->setVector(s);
+ param->set_and_write_new_values(param->origin, param->vector);
+ sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
+ };
+ Geom::Point knot_get() const override {
+ return param->origin + param->vector;
+ };
+ void knot_ungrabbed(Geom::Point const &p, Geom::Point const &origin, guint state) override
+ {
+ param->param_effect->refresh_widgets = true;
+ param->write_to_SVG();
+ };
+ void knot_click(guint /*state*/) override{
+ g_print ("This is the vector handle associated to parameter '%s'\n", param->param_key.c_str());
+ };
+
+private:
+ VectorParam *param;
+};
+
+void
+VectorParam::addKnotHolderEntities(KnotHolder *knotholder, SPItem *item)
+{
+ VectorParamKnotHolderEntity_Origin *origin_e = new VectorParamKnotHolderEntity_Origin(this);
+ origin_e->create(nullptr, item, knotholder, Inkscape::CANVAS_ITEM_CTRL_TYPE_LPE, "LPE:Origin",
+ handleTip(), ori_knot_color);
+ knotholder->add(origin_e);
+
+ VectorParamKnotHolderEntity_Vector *vector_e = new VectorParamKnotHolderEntity_Vector(this);
+ vector_e->create(nullptr, item, knotholder, Inkscape::CANVAS_ITEM_CTRL_TYPE_LPE, "LPE:Vector",
+ handleTip(), vec_knot_color);
+ knotholder->add(vector_e);
+}
+
+} /* namespace LivePathEffect */
+
+} /* namespace Inkscape */
+
+/*
+ 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 :