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/parameter/pointparam-knotholder.h"
  11 #include "live_effects/effect.h"
  12 #include "svg/svg.h"
  13 #include "svg/stringstream.h"
  14 #include <gtkmm.h>
  15 #include "ui/widget/point.h"
  16 #include "widgets/icon.h"
  17 #include "ui/widget/registered-widget.h"
  18 #include "inkscape.h"
  19 #include "verbs.h"
  20
  21 // needed for on-canvas editting:
  22 #include "tools-switch.h"
  23 #include "node-context.h"
  24 #include "shape-editor.h"
  25 #include "desktop.h"
  26 #include "selection.h"
  27 #include "libnr/nr-convert2geom.h"
  28
  29 namespace Inkscape {
  30
  31 namespace LivePathEffect {
  32
  33 PointParam::PointParam( const Glib::ustring& label, const Glib::ustring& tip,
  34                         const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
  35                         Effect* effect, Geom::Point default_value )
  36     : Geom::Point(default_value), Parameter(label, tip, key, wr, effect), defvalue(default_value)
  37 {
  38     oncanvas_editable = true;
  39
  40     knot_shape = SP_KNOT_SHAPE_SQUARE;
  41     knot_mode  = SP_KNOT_MODE_XOR;
  42     knot_color = 0x00ff0000;
  43 }
  44
  45 PointParam::~PointParam()
  46 {
  47 }
  48
  49 void
  50 PointParam::param_set_default()
  51 {
  52     param_setValue(defvalue);
  53 }
  54
  55 bool
  56 PointParam::param_readSVGValue(const gchar * strvalue)
  57 {
  58     gchar ** strarray = g_strsplit(strvalue, ",", 2);
  59     double newx, newy;
  60     unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
  61     success += sp_svg_number_read_d(strarray[1], &newy);
  62     g_strfreev (strarray);
  63     if (success == 2) {
  64         param_setValue( Geom::Point(newx, newy) );
  65         return true;
  66     }
  67     return false;
  68 }
  69
  70 gchar *
  71 PointParam::param_getSVGValue() const
  72 {
  73     Inkscape::SVGOStringStream os;
  74     os << *dynamic_cast<Geom::Point const *>( this );
  75     gchar * str = g_strdup(os.str().c_str());
  76     return str;
  77 }
  78
  79 Gtk::Widget *
  80 PointParam::param_newWidget(Gtk::Tooltips * tooltips)
  81 {
  82     Inkscape::UI::Widget::RegisteredTransformedPoint * pointwdg = Gtk::manage(
  83         new Inkscape::UI::Widget::RegisteredTransformedPoint( param_label,
  84                                                               param_tooltip,
  85                                                               param_key,
  86                                                               *param_wr,
  87                                                               param_effect->getRepr(),
  88                                                               param_effect->getSPDoc() ) );
  89     // TODO: fix to get correct desktop (don't use SP_ACTIVE_DESKTOP)
  90     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
  91     Geom::Matrix transf = to_2geom(desktop->doc2dt());
  92     pointwdg->setTransform(transf);
  93     pointwdg->setValue( *this );
  94     pointwdg->clearProgrammatically();
  95     pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change point parameter"));
  96
  97     Gtk::Widget*  pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
  98     Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
  99     pButton->set_relief(Gtk::RELIEF_NONE);
 100     pIcon->show();
 101     pButton->add(*pIcon);
 102     pButton->show();
 103
 104     Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
 105     static_cast<Gtk::HBox*>(hbox)->pack_start(*pButton, true, true);
 106     static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
 107     static_cast<Gtk::HBox*>(hbox)->show_all_children();
 108
 109     tooltips->set_tip(*pButton, _("Edit on-canvas"));
 110
 111     return dynamic_cast<Gtk::Widget *> (hbox);
 112 }
 113
 114 void
 115 PointParam::param_setValue(Geom::Point newpoint)
 116 {
 117     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 118 }
 119
 120 void
 121 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 122 {
 123     Inkscape::SVGOStringStream os;
 124     os << newpoint;
 125     gchar * str = g_strdup(os.str().c_str());
 126     param_write_to_repr(str);
 127     g_free(str);
 128 }
 129
 130 void
 131 PointParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
 132 {
 133     // If not already in nodecontext, goto it!
 134     if (!tools_isactive(dt, TOOLS_NODES)) {
 135         tools_switch_current(TOOLS_NODES);
 136     }
 137
 138     PointParamKnotHolder * kh =  new PointParamKnotHolder(dt, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str(), item);
 139     if (kh) {
 140         kh->add_knot(* dynamic_cast<Geom::Point *>( this ), NULL, knot_shape, knot_mode, knot_color, param_getTooltip()->c_str() );
 141
 142         ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
 143         shape_editor->set_knotholder(kh);
 144     }
 145 }
 146
 147
 148
 149 void
 150 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 151 {
 152     param_set_and_write_new_value( (*this) * postmul );
 153 }
 154
 155
 156 void
 157 PointParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
 158 {
 159     knot_shape = shape;
 160     knot_mode  = mode;
 161     knot_color = color;
 162 }
 163
 164 void
 165 PointParam::knot_set(NR::Point const &p, NR::Point const &origin, guint state)
 166 {
 167     param_setValue(p.to_2geom());
 168     sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
 169 }
 170
 171 NR::Point
 172 PointParam::knot_get()
 173 {
 174     return *this;
 175 }
 176
 177 void
 178 PointParam::knot_click(guint state)
 179 {
 180     g_print ("This is the handle associated to the parameter '%s'\n", param_key.c_str());
 181 }
 182
 183 } /* namespace LivePathEffect */
 184
 185 } /* namespace Inkscape */
 186
 187 /*
 188   Local Variables:
 189   mode:c++
 190   c-file-style:"stroustrup"
 191   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 192   indent-tabs-mode:nil
 193   fill-column:99
 194   End:
 195 */
 196 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :