src/live_effects/parameter/point.cpp

   1 #define INKSCAPE_LIVEPATHEFFECT_PARAMETER_POINT_CPP
   2
   3 /*
   4  * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
   5  *
   6  * Released under GNU GPL, read the file 'COPYING' for more information
   7  */
   8
   9 #include "live_effects/parameter/point.h"
  10 #include "live_effects/effect.h"
  11 #include "svg/svg.h"
  12 #include "svg/stringstream.h"
  13 #include <gtkmm.h>
  14 #include "ui/widget/point.h"
  15 #include "widgets/icon.h"
  16
  17 #include "knot.h"
  18 #include "inkscape.h"
  19 #include "verbs.h"
  20
  21 #define noLPEPOINTPARAM_DEBUG
  22
  23 #define PRM_KNOT_COLOR_NORMAL 0xffffff00
  24 #define PRM_KNOT_COLOR_SELECTED 0x0000ff00
  25
  26 namespace Inkscape {
  27
  28 namespace LivePathEffect {
  29
  30 PointParam::PointParam( const Glib::ustring& label, const Glib::ustring& tip,
  31                         const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
  32                         Effect* effect, Geom::Point default_value )
  33     : Geom::Point(default_value), Parameter(label, tip, key, wr, effect), defvalue(default_value)
  34 {
  35     knot = NULL;
  36 }
  37
  38 PointParam::~PointParam()
  39 {
  40     if (knot)
  41         g_object_unref (G_OBJECT (knot));
  42 }
  43
  44 void
  45 PointParam::param_set_default()
  46 {
  47     param_setValue(defvalue);
  48 }
  49
  50 bool
  51 PointParam::param_readSVGValue(const gchar * strvalue)
  52 {
  53     gchar ** strarray = g_strsplit(strvalue, ",", 2);
  54     double newx, newy;
  55     unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
  56     success += sp_svg_number_read_d(strarray[1], &newy);
  57     g_strfreev (strarray);
  58     if (success == 2) {
  59         param_setValue( Geom::Point(newx, newy) );
  60         return true;
  61     }
  62     return false;
  63 }
  64
  65 gchar *
  66 PointParam::param_writeSVGValue() const
  67 {
  68     Inkscape::SVGOStringStream os;
  69     os << (*this)[0] << "," << (*this)[1];
  70     gchar * str = g_strdup(os.str().c_str());
  71     return str;
  72 }
  73
  74 Gtk::Widget *
  75 PointParam::param_newWidget(Gtk::Tooltips * tooltips)
  76 {
  77     // WIDGET TODO: This implementation is incorrect, it should create a *new* widget for the caller, not just return an already created widget
  78     g_warning("PointParam::param_newWidget still needs recoding to work with multiple document views");
  79     Inkscape::UI::Widget::RegisteredPoint * pointwdg = Gtk::manage(
  80         new Inkscape::UI::Widget::RegisteredPoint( param_label,
  81                                                    param_tooltip,
  82                                                    param_key,
  83                                                    *param_wr,
  84                                                    param_effect->getRepr(),
  85                                                    param_effect->getSPDoc() ) );
  86     pointwdg->setValue( (*this)[0], (*this)[1] );
  87     pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change point parameter"));
  88
  89     Gtk::Widget*  pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
  90     Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
  91     pButton->set_relief(Gtk::RELIEF_NONE);
  92     pIcon->show();
  93     pButton->add(*pIcon);
  94     pButton->show();
  95     pButton->signal_clicked().connect(sigc::mem_fun(*this, &PointParam::on_button_click));
  96 #ifndef LPEPOINTPARAM_DEBUG
  97     pButton->set_sensitive(false);
  98 #endif
  99
 100     Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
 101     static_cast<Gtk::HBox*>(hbox)->pack_start(*pButton, true, true);
 102     static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
 103     static_cast<Gtk::HBox*>(hbox)->show_all_children();
 104
 105     tooltips->set_tip(*pButton, _("Edit on-canvas"));
 106
 107     return dynamic_cast<Gtk::Widget *> (hbox);
 108 }
 109
 110 void
 111 PointParam::param_setValue(Geom::Point newpoint)
 112 {
 113     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 114 }
 115
 116 void
 117 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 118 {
 119     Inkscape::SVGOStringStream os;
 120     os << newpoint[0] << "," << newpoint[1];
 121     gchar * str = g_strdup(os.str().c_str());
 122     param_write_to_repr(str);
 123     g_free(str);
 124 }
 125
 126 void
 127 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 128 {
 129     param_set_and_write_new_value( (*this) * postmul );
 130 }
 131
 132
 133 // CALLBACKS:
 134
 135 void
 136 PointParam::on_button_click()
 137 {
 138     g_message("add knot to canvas on correct location :S");
 139
 140     if (!knot) {
 141         // create the knot
 142         knot = sp_knot_new (SP_ACTIVE_DESKTOP, NULL);
 143         knot->setMode(SP_KNOT_MODE_XOR);
 144         knot->setFill(PRM_KNOT_COLOR_NORMAL, PRM_KNOT_COLOR_NORMAL, PRM_KNOT_COLOR_NORMAL);
 145         knot->setStroke(0x000000ff, 0x000000ff, 0x000000ff);
 146         sp_knot_update_ctrl(knot);
 147
 148         // move knot to the given point
 149         sp_knot_set_position (knot, &NR::Point(*static_cast<Geom::Point*>(this)), SP_KNOT_STATE_NORMAL);
 150         sp_knot_show (knot);
 151 /*
 152         // connect knot's signals
 153         if ( (draggable)  // it can be NULL if a node in unsnapped (eg. focus point unsnapped from center)
 154                            // luckily, midstops never snap to other nodes so are never unsnapped...
 155              && ( (draggable->point_type == POINT_LG_MID)
 156                   || (draggable->point_type == POINT_RG_MID1)
 157                   || (draggable->point_type == POINT_RG_MID2) ) )
 158         {
 159             this->handler_id = g_signal_connect (G_OBJECT (this->knot), "moved", G_CALLBACK (gr_knot_moved_midpoint_handler), this);
 160         } else {
 161             this->handler_id = g_signal_connect (G_OBJECT (this->knot), "moved", G_CALLBACK (gr_knot_moved_handler), this);
 162         }
 163         g_signal_connect (G_OBJECT (this->knot), "clicked", G_CALLBACK (gr_knot_clicked_handler), this);
 164         g_signal_connect (G_OBJECT (this->knot), "doubleclicked", G_CALLBACK (gr_knot_doubleclicked_handler), this);
 165         g_signal_connect (G_OBJECT (this->knot), "grabbed", G_CALLBACK (gr_knot_grabbed_handler), this);
 166         g_signal_connect (G_OBJECT (this->knot), "ungrabbed", G_CALLBACK (gr_knot_ungrabbed_handler), this);
 167 */
 168     }
 169 }
 170
 171 } /* namespace LivePathEffect */
 172
 173 } /* namespace Inkscape */
 174
 175 /*
 176   Local Variables:
 177   mode:c++
 178   c-file-style:"stroustrup"
 179   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 180   indent-tabs-mode:nil
 181   fill-column:99
 182   End:
 183 */
 184 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :