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     _widget = NULL;
  36     pointwdg = NULL;
  37     knot = NULL;
  38     _tooltips = NULL;
  39 }
  40
  41 PointParam::~PointParam()
  42 {
  43     if (pointwdg)
  44         delete pointwdg;
  45     if (_tooltips)
  46         delete _tooltips;
  47
  48     if (knot)
  49         g_object_unref (G_OBJECT (knot));
  50 }
  51
  52 void
  53 PointParam::param_set_default()
  54 {
  55     param_setValue(defvalue);
  56 }
  57
  58 bool
  59 PointParam::param_readSVGValue(const gchar * strvalue)
  60 {
  61     gchar ** strarray = g_strsplit(strvalue, ",", 2);
  62     double newx, newy;
  63     unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
  64     success += sp_svg_number_read_d(strarray[1], &newy);
  65     g_strfreev (strarray);
  66     if (success == 2) {
  67         param_setValue( Geom::Point(newx, newy) );
  68         return true;
  69     }
  70     return false;
  71 }
  72
  73 gchar *
  74 PointParam::param_writeSVGValue() const
  75 {
  76     Inkscape::SVGOStringStream os;
  77     os << (*this)[0] << "," << (*this)[1];
  78     gchar * str = g_strdup(os.str().c_str());
  79     return str;
  80 }
  81
  82 Gtk::Widget *
  83 PointParam::param_getWidget()
  84 {
  85     if (!_widget) {
  86         pointwdg = new Inkscape::UI::Widget::RegisteredPoint();
  87         pointwdg->init(param_label, param_tooltip, param_key, *param_wr, param_effect->getRepr(), param_effect->getSPDoc());
  88         pointwdg->setValue( (*this)[0], (*this)[1] );
  89         pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change point parameter"));
  90
  91         Gtk::Widget*  pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
  92         Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
  93         pButton->set_relief(Gtk::RELIEF_NONE);
  94         pIcon->show();
  95         pButton->add(*pIcon);
  96         pButton->show();
  97         pButton->signal_clicked().connect(sigc::mem_fun(*this, &PointParam::on_button_click));
  98 #ifndef LPEPOINTPARAM_DEBUG
  99         pButton->set_sensitive(false);
 100 #endif
 101
 102         _widget = Gtk::manage( new Gtk::HBox() );
 103         static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
 104         static_cast<Gtk::HBox*>(_widget)->pack_start(*(pointwdg->getPoint()), true, true);
 105         static_cast<Gtk::HBox*>(_widget)->show_all_children();
 106
 107         _tooltips = new Gtk::Tooltips();
 108         _tooltips->set_tip(*pButton, _("Edit on-canvas"));
 109     }
 110     return dynamic_cast<Gtk::Widget *> (_widget);
 111 }
 112
 113 void
 114 PointParam::param_setValue(Geom::Point newpoint)
 115 {
 116     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 117     if (pointwdg)
 118         pointwdg->setValue(newpoint[0], newpoint[1]);
 119 }
 120
 121
 122 // CALLBACKS:
 123
 124 void
 125 PointParam::on_button_click()
 126 {
 127     g_message("add knot to canvas on correct location :S");
 128
 129     if (!knot) {
 130         // create the knot
 131         knot = sp_knot_new (SP_ACTIVE_DESKTOP, NULL);
 132         knot->setMode(SP_KNOT_MODE_XOR);
 133         knot->setFill(PRM_KNOT_COLOR_NORMAL, PRM_KNOT_COLOR_NORMAL, PRM_KNOT_COLOR_NORMAL);
 134         knot->setStroke(0x000000ff, 0x000000ff, 0x000000ff);
 135         sp_knot_update_ctrl(knot);
 136
 137         // move knot to the given point
 138         sp_knot_set_position (knot, &NR::Point(*static_cast<Geom::Point*>(this)), SP_KNOT_STATE_NORMAL);
 139         sp_knot_show (knot);
 140 /*
 141         // connect knot's signals
 142         if ( (draggable)  // it can be NULL if a node in unsnapped (eg. focus point unsnapped from center)
 143                            // luckily, midstops never snap to other nodes so are never unsnapped...
 144              && ( (draggable->point_type == POINT_LG_MID)
 145                   || (draggable->point_type == POINT_RG_MID1)
 146                   || (draggable->point_type == POINT_RG_MID2) ) )
 147         {
 148             this->handler_id = g_signal_connect (G_OBJECT (this->knot), "moved", G_CALLBACK (gr_knot_moved_midpoint_handler), this);
 149         } else {
 150             this->handler_id = g_signal_connect (G_OBJECT (this->knot), "moved", G_CALLBACK (gr_knot_moved_handler), this);
 151         }
 152         g_signal_connect (G_OBJECT (this->knot), "clicked", G_CALLBACK (gr_knot_clicked_handler), this);
 153         g_signal_connect (G_OBJECT (this->knot), "doubleclicked", G_CALLBACK (gr_knot_doubleclicked_handler), this);
 154         g_signal_connect (G_OBJECT (this->knot), "grabbed", G_CALLBACK (gr_knot_grabbed_handler), this);
 155         g_signal_connect (G_OBJECT (this->knot), "ungrabbed", G_CALLBACK (gr_knot_ungrabbed_handler), this);
 156 */
 157     }
 158 }
 159
 160 } /* namespace LivePathEffect */
 161
 162 } /* namespace Inkscape */
 163
 164 /*
 165   Local Variables:
 166   mode:c++
 167   c-file-style:"stroustrup"
 168   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 169   indent-tabs-mode:nil
 170   fill-column:99
 171   End:
 172 */
 173 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :