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_newWidget(Gtk::Tooltips * tooltips)
  84 {
  85     // WIDGET TODO: This implementation is incorrect, it should create a *new* widget for the caller, not just return an already created widget
  86     g_warning("PointParam::param_newWidget still needs recoding to work with multiple document views");
  87     if (!_widget) {
  88         pointwdg = new Inkscape::UI::Widget::RegisteredPoint();
  89         pointwdg->init(param_label, param_tooltip, param_key, *param_wr, param_effect->getRepr(), param_effect->getSPDoc());
  90         pointwdg->setValue( (*this)[0], (*this)[1] );
  91         pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change point parameter"));
  92
  93         Gtk::Widget*  pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
  94         Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
  95         pButton->set_relief(Gtk::RELIEF_NONE);
  96         pIcon->show();
  97         pButton->add(*pIcon);
  98         pButton->show();
  99         pButton->signal_clicked().connect(sigc::mem_fun(*this, &PointParam::on_button_click));
 100 #ifndef LPEPOINTPARAM_DEBUG
 101         pButton->set_sensitive(false);
 102 #endif
 103
 104         _widget = Gtk::manage( new Gtk::HBox() );
 105         static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
 106         static_cast<Gtk::HBox*>(_widget)->pack_start(*(pointwdg->getPoint()), true, true);
 107         static_cast<Gtk::HBox*>(_widget)->show_all_children();
 108
 109         tooltips->set_tip(*pButton, _("Edit on-canvas"));
 110     }
 111     return dynamic_cast<Gtk::Widget *> (_widget);
 112 }
 113
 114 void
 115 PointParam::param_setValue(Geom::Point newpoint)
 116 {
 117     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 118     if (pointwdg)
 119         pointwdg->setValue(newpoint[0], newpoint[1]);
 120 }
 121
 122 void
 123 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 124 {
 125     Inkscape::SVGOStringStream os;
 126     os << newpoint[0] << "," << newpoint[1];
 127     gchar * str = g_strdup(os.str().c_str());
 128     param_write_to_repr(str);
 129     g_free(str);
 130 }
 131
 132 void
 133 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 134 {
 135     param_set_and_write_new_value( (*this) * postmul );
 136 }
 137
 138
 139 // CALLBACKS:
 140
 141 void
 142 PointParam::on_button_click()
 143 {
 144     g_message("add knot to canvas on correct location :S");
 145
 146     if (!knot) {
 147         // create the knot
 148         knot = sp_knot_new (SP_ACTIVE_DESKTOP, NULL);
 149         knot->setMode(SP_KNOT_MODE_XOR);
 150         knot->setFill(PRM_KNOT_COLOR_NORMAL, PRM_KNOT_COLOR_NORMAL, PRM_KNOT_COLOR_NORMAL);
 151         knot->setStroke(0x000000ff, 0x000000ff, 0x000000ff);
 152         sp_knot_update_ctrl(knot);
 153
 154         // move knot to the given point
 155         sp_knot_set_position (knot, &NR::Point(*static_cast<Geom::Point*>(this)), SP_KNOT_STATE_NORMAL);
 156         sp_knot_show (knot);
 157 /*
 158         // connect knot's signals
 159         if ( (draggable)  // it can be NULL if a node in unsnapped (eg. focus point unsnapped from center)
 160                            // luckily, midstops never snap to other nodes so are never unsnapped...
 161              && ( (draggable->point_type == POINT_LG_MID)
 162                   || (draggable->point_type == POINT_RG_MID1)
 163                   || (draggable->point_type == POINT_RG_MID2) ) )
 164         {
 165             this->handler_id = g_signal_connect (G_OBJECT (this->knot), "moved", G_CALLBACK (gr_knot_moved_midpoint_handler), this);
 166         } else {
 167             this->handler_id = g_signal_connect (G_OBJECT (this->knot), "moved", G_CALLBACK (gr_knot_moved_handler), this);
 168         }
 169         g_signal_connect (G_OBJECT (this->knot), "clicked", G_CALLBACK (gr_knot_clicked_handler), this);
 170         g_signal_connect (G_OBJECT (this->knot), "doubleclicked", G_CALLBACK (gr_knot_doubleclicked_handler), this);
 171         g_signal_connect (G_OBJECT (this->knot), "grabbed", G_CALLBACK (gr_knot_grabbed_handler), this);
 172         g_signal_connect (G_OBJECT (this->knot), "ungrabbed", G_CALLBACK (gr_knot_ungrabbed_handler), this);
 173 */
 174     }
 175 }
 176
 177 } /* namespace LivePathEffect */
 178
 179 } /* namespace Inkscape */
 180
 181 /*
 182   Local Variables:
 183   mode:c++
 184   c-file-style:"stroustrup"
 185   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 186   indent-tabs-mode:nil
 187   fill-column:99
 188   End:
 189 */
 190 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :