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     pButton->signal_clicked().connect(sigc::mem_fun(*this, &PointParam::on_button_click));
 104
 105     Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
 106     static_cast<Gtk::HBox*>(hbox)->pack_start(*pButton, true, true);
 107     static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
 108     static_cast<Gtk::HBox*>(hbox)->show_all_children();
 109
 110     tooltips->set_tip(*pButton, _("Edit on-canvas"));
 111
 112     return dynamic_cast<Gtk::Widget *> (hbox);
 113 }
 114
 115 void
 116 PointParam::param_setValue(Geom::Point newpoint)
 117 {
 118     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 119 }
 120
 121 void
 122 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 123 {
 124     Inkscape::SVGOStringStream os;
 125     os << newpoint;
 126     gchar * str = g_strdup(os.str().c_str());
 127     param_write_to_repr(str);
 128     g_free(str);
 129 }
 130
 131 void
 132 PointParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
 133 {
 134     // If not already in nodecontext, goto it!
 135     if (!tools_isactive(dt, TOOLS_NODES)) {
 136         tools_switch_current(TOOLS_NODES);
 137     }
 138
 139     PointParamKnotHolder * kh =  new PointParamKnotHolder(dt, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str(), item);
 140     if (kh) {
 141         kh->add_knot(* dynamic_cast<Geom::Point *>( this ), NULL, knot_shape, knot_mode, knot_color, param_getTooltip()->c_str() );
 142
 143         ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
 144         shape_editor->set_knotholder(kh);
 145     }
 146 }
 147
 148
 149
 150 void
 151 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 152 {
 153     param_set_and_write_new_value( (*this) * postmul );
 154 }
 155
 156
 157 void
 158 PointParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
 159 {
 160     knot_shape = shape;
 161     knot_mode  = mode;
 162     knot_color = color;
 163 }
 164
 165
 166 // CALLBACKS:
 167
 168 void
 169 PointParam::on_button_click()
 170 {
 171     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 172     SPItem * item = sp_desktop_selection(desktop)->singleItem();
 173     if (item != NULL) {
 174         param_editOncanvas(item, desktop);
 175     }
 176 }
 177
 178 } /* namespace LivePathEffect */
 179
 180 } /* namespace Inkscape */
 181
 182 /*
 183   Local Variables:
 184   mode:c++
 185   c-file-style:"stroustrup"
 186   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 187   indent-tabs-mode:nil
 188   fill-column:99
 189   End:
 190 */
 191 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :