diff options
Diffstat (limited to 'src/live_effects/parameter/point.cpp')
| -rw-r--r-- | src/live_effects/parameter/point.cpp | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/src/live_effects/parameter/point.cpp b/src/live_effects/parameter/point.cpp new file mode 100644 index 0000000..f99a098 --- /dev/null +++ b/src/live_effects/parameter/point.cpp @@ -0,0 +1,270 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl> + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#include "point.h" + +#include "inkscape.h" + +#include "live_effects/effect.h" +#include "svg/stringstream.h" +#include "svg/svg.h" +#include "ui/icon-names.h" +#include "ui/knot/knot-holder.h" +#include "ui/knot/knot-holder-entity.h" +#include "ui/widget/point.h" + +#include <glibmm/i18n.h> + +namespace Inkscape { + +namespace LivePathEffect { + +PointParam::PointParam( const Glib::ustring& label, const Glib::ustring& tip, + const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr, + Effect* effect, const gchar *htip, Geom::Point default_value, + bool live_update ) + : Parameter(label, tip, key, wr, effect) + , defvalue(default_value) + , liveupdate(live_update) +{ + handle_tip = g_strdup(htip); +} + +PointParam::~PointParam() +{ + if (handle_tip) + g_free(handle_tip); +} + +void +PointParam::param_set_default() +{ + param_setValue(defvalue,true); +} + +void +PointParam::param_set_liveupdate( bool live_update) +{ + liveupdate = live_update; +} + +Geom::Point +PointParam::param_get_default() const{ + return defvalue; +} + +void +PointParam::param_update_default(Geom::Point default_point) +{ + defvalue = default_point; +} + +void +PointParam::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) ); + } +} + +void +PointParam::param_hide_knot(bool hide) { + if (_knot_entity) { + bool update = false; + if (hide && _knot_entity->knot->flags & SP_KNOT_VISIBLE) { + update = true; + _knot_entity->knot->hide(); + } else if(!hide && !(_knot_entity->knot->flags & SP_KNOT_VISIBLE)) { + update = true; + _knot_entity->knot->show(); + } + if (update) { + _knot_entity->update_knot(); + } + } +} + +void +PointParam::param_setValue(Geom::Point newpoint, bool write) +{ + *dynamic_cast<Geom::Point *>( this ) = newpoint; + if(write){ + Inkscape::SVGOStringStream os; + os << newpoint; + gchar * str = g_strdup(os.str().c_str()); + param_write_to_repr(str); + g_free(str); + } + if(_knot_entity && liveupdate){ + _knot_entity->update_knot(); + } +} + +bool +PointParam::param_readSVGValue(const gchar * strvalue) +{ + gchar ** strarray = g_strsplit(strvalue, ",", 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_setValue( Geom::Point(newx, newy) ); + return true; + } + return false; +} + +Glib::ustring +PointParam::param_getSVGValue() const +{ + Inkscape::SVGOStringStream os; + os << *dynamic_cast<Geom::Point const *>( this ); + return os.str(); +} + +Glib::ustring +PointParam::param_getDefaultSVGValue() const +{ + Inkscape::SVGOStringStream os; + os << defvalue; + return os.str(); +} + +void +PointParam::param_transform_multiply(Geom::Affine const& postmul, bool /*set*/) +{ + param_setValue( (*this) * postmul, true); +} + +Gtk::Widget * +PointParam::param_newWidget() +{ + Inkscape::UI::Widget::RegisteredTransformedPoint * pointwdg = Gtk::manage( + new Inkscape::UI::Widget::RegisteredTransformedPoint( param_label, + param_tooltip, + param_key, + *param_wr, + param_effect->getRepr(), + param_effect->getSPDoc() ) ); + Geom::Affine transf = SP_ACTIVE_DESKTOP->doc2dt(); + pointwdg->setTransform(transf); + pointwdg->setValue( *this ); + pointwdg->clearProgrammatically(); + pointwdg->set_undo_parameters(_("Change point parameter"), INKSCAPE_ICON("dialog-path-effects")); + pointwdg->signal_button_release_event().connect(sigc::mem_fun (*this, &PointParam::on_button_release)); + + 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); +} + +bool PointParam::on_button_release(GdkEventButton* button_event) { + param_effect->refresh_widgets = true; + return false; +} + +void +PointParam::set_oncanvas_looks(Inkscape::CanvasItemCtrlShape shape, + Inkscape::CanvasItemCtrlMode mode, + guint32 color) +{ + knot_shape = shape; + knot_mode = mode; + knot_color = color; +} + +class PointParamKnotHolderEntity : public KnotHolderEntity { +public: + PointParamKnotHolderEntity(PointParam *p) { this->pparam = p; } + ~PointParamKnotHolderEntity() override { this->pparam->_knot_entity = nullptr;} + + void knot_set(Geom::Point const &p, Geom::Point const &origin, guint state) override; + Geom::Point knot_get() const override; + void knot_ungrabbed(Geom::Point const &p, Geom::Point const &origin, guint state) override; + void knot_click(guint state) override; + +private: + PointParam *pparam; +}; + +void +PointParamKnotHolderEntity::knot_set(Geom::Point const &p, Geom::Point const &origin, guint state) +{ + Geom::Point s = snap_knot_position(p, state); + if (state & GDK_CONTROL_MASK) { + Geom::Point A(origin[Geom::X],p[Geom::Y]); + Geom::Point B(p[Geom::X],origin[Geom::Y]); + double distanceA = Geom::distance(A,p); + double distanceB = Geom::distance(B,p); + if(distanceA > distanceB){ + s = B; + } else { + s = A; + } + } + if(this->pparam->liveupdate){ + pparam->param_setValue(s, true); + } else { + pparam->param_setValue(s); + } +} + +void +PointParamKnotHolderEntity::knot_ungrabbed(Geom::Point const &p, Geom::Point const &origin, guint state) +{ + pparam->param_setValue(*pparam, true); + pparam->param_effect->refresh_widgets = true; +} + +Geom::Point +PointParamKnotHolderEntity::knot_get() const +{ + return *pparam; +} + +void +PointParamKnotHolderEntity::knot_click(guint state) +{ + if (state & GDK_CONTROL_MASK) { + if (state & GDK_MOD1_MASK) { + this->pparam->param_set_default(); + pparam->param_setValue(*pparam,true); + } + } +} + +void +PointParam::addKnotHolderEntities(KnotHolder *knotholder, SPItem *item) +{ + _knot_entity = new PointParamKnotHolderEntity(this); + // TODO: can we ditch handleTip() etc. because we have access to handle_tip etc. itself??? + _knot_entity->create(nullptr, item, knotholder, Inkscape::CANVAS_ITEM_CTRL_TYPE_LPE, "LPE:Point", + handleTip(), knot_color); + knotholder->add(_knot_entity); +} + +} /* 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 : |