#include "ui/widget/registered-widget.h"

#include "live_effects/parameter/transformedpoint.h"

#include "sp-lpe-item.h"

#include "knotholder.h"

#include "svg/svg.h"

#include "svg/stringstream.h"

#include "live_effects/effect.h"

#include "desktop.h"

#include "verbs.h"

#include <glibmm/i18n.h>

namespace Inkscape {

namespace LivePathEffect {

TransformedPointParam::TransformedPointParam( const Glib::ustring& label, const Glib::ustring& tip,

const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,

Effect* effect, Geom::Point default_vector,

bool dontTransform)

: Parameter(label, tip, key, wr, effect),

defvalue(default_vector),

origin(0.,0.),

vector(default_vector),

noTransform(dontTransform)

{

vec_knot_shape = SP_KNOT_SHAPE_DIAMOND;

vec_knot_mode = SP_KNOT_MODE_XOR;

vec_knot_color = 0xffffb500;

}

TransformedPointParam::~TransformedPointParam()

{

}

TransformedPointParam::param_set_default()

{

setOrigin(Geom::Point(0.,0.));

setVector(defvalue);

}

TransformedPointParam::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;

}

gchar *

TransformedPointParam::param_getSVGValue() const

{

Inkscape::SVGOStringStream os;

os << origin << " , " << vector;

gchar * str = g_strdup(os.str().c_str());

return str;

}

Gtk::Widget *

TransformedPointParam::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(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change vector parameter"));

Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );

static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);

static_cast<Gtk::HBox*>(hbox)->show_all_children();

return dynamic_cast<Gtk::Widget *> (hbox);

}

TransformedPointParam::set_and_write_new_values(Geom::Point const &new_origin, Geom::Point const &new_vector)

{

setValues(new_origin, new_vector);

gchar * str = param_getSVGValue();

param_write_to_repr(str);

g_free(str);

}

TransformedPointParam::param_transform_multiply(Geom::Affine const& postmul, bool /*set*/)

{

if (!noTransform) {

set_and_write_new_values( origin * postmul, vector * postmul.withoutTranslation() );

}

}

TransformedPointParam::set_vector_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)

{

vec_knot_shape = shape;

vec_knot_mode = mode;

vec_knot_color = color;

}

TransformedPointParam::set_oncanvas_color(guint32 color)

{

vec_knot_color = color;

}

class TransformedPointParamKnotHolderEntity_Vector : public KnotHolderEntity {

public:

TransformedPointParamKnotHolderEntity_Vector(TransformedPointParam *p) : param(p) { }

virtual ~TransformedPointParamKnotHolderEntity_Vector() {}

virtual void knot_set(Geom::Point const &p, Geom::Point const &/*origin*/, guint /*state*/) {

Geom::Point const s = p - param->origin;

/// @todo implement angle snapping when holding CTRL

param->setVector(s);

sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);

};

virtual Geom::Point knot_get() const{

return param->origin + param->vector;

};

virtual void knot_click(guint /*state*/){

g_print ("This is the vector handle associated to parameter '%s'\n", param->param_key.c_str());

};

private:

TransformedPointParam *param;

};

TransformedPointParam::addKnotHolderEntities(KnotHolder *knotholder, SPDesktop *desktop, SPItem *item)

{

TransformedPointParamKnotHolderEntity_Vector *vector_e = new TransformedPointParamKnotHolderEntity_Vector(this);

vector_e->create(desktop, item, knotholder, Inkscape::CTRL_TYPE_UNKNOWN, handleTip(), vec_knot_shape, vec_knot_mode, vec_knot_color);

knotholder->add(vector_e);

}

} /* namespace LivePathEffect */

} /* namespace Inkscape */