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
  28 namespace Inkscape {
  29
  30 namespace LivePathEffect {
  31
  32 PointParam::PointParam( const Glib::ustring& label, const Glib::ustring& tip,
  33                         const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
  34                         Effect* effect, Geom::Point default_value )
  35     : Geom::Point(default_value), Parameter(label, tip, key, wr, effect), defvalue(default_value)
  36 {
  37     oncanvas_editable = true;
  38
  39     knot_shape = SP_KNOT_SHAPE_SQUARE;
  40     knot_mode  = SP_KNOT_MODE_XOR;
  41     knot_color = 0x00ff0000;
  42 }
  43
  44 PointParam::~PointParam()
  45 {
  46 }
  47
  48 void
  49 PointParam::param_set_default()
  50 {
  51     param_setValue(defvalue);
  52 }
  53
  54 bool
  55 PointParam::param_readSVGValue(const gchar * strvalue)
  56 {
  57     gchar ** strarray = g_strsplit(strvalue, ",", 2);
  58     double newx, newy;
  59     unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
  60     success += sp_svg_number_read_d(strarray[1], &newy);
  61     g_strfreev (strarray);
  62     if (success == 2) {
  63         param_setValue( Geom::Point(newx, newy) );
  64         return true;
  65     }
  66     return false;
  67 }
  68
  69 gchar *
  70 PointParam::param_writeSVGValue() const
  71 {
  72     Inkscape::SVGOStringStream os;
  73     os << *dynamic_cast<Geom::Point const *>( this );
  74     gchar * str = g_strdup(os.str().c_str());
  75     return str;
  76 }
  77
  78 Gtk::Widget *
  79 PointParam::param_newWidget(Gtk::Tooltips * tooltips)
  80 {
  81     Inkscape::UI::Widget::RegisteredTransformedPoint * pointwdg = Gtk::manage(
  82         new Inkscape::UI::Widget::RegisteredTransformedPoint( param_label,
  83                                                               param_tooltip,
  84                                                               param_key,
  85                                                               *param_wr,
  86                                                               param_effect->getRepr(),
  87                                                               param_effect->getSPDoc() ) );
  88     pointwdg->setValue( *this );
  89     pointwdg->clearProgrammatically();
  90     pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change point parameter"));
  91
  92     Gtk::Widget*  pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
  93     Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
  94     pButton->set_relief(Gtk::RELIEF_NONE);
  95     pIcon->show();
  96     pButton->add(*pIcon);
  97     pButton->show();
  98     pButton->signal_clicked().connect(sigc::mem_fun(*this, &PointParam::on_button_click));
  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;
 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_editOncanvas(SPItem * item, SPDesktop * dt)
 128 {
 129     // If not already in nodecontext, goto it!
 130     if (!tools_isactive(dt, TOOLS_NODES)) {
 131         tools_switch_current(TOOLS_NODES);
 132     }
 133
 134     PointParamKnotHolder * kh =  pointparam_knot_holder_new( dt, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str(), item);
 135     if (kh) {
 136         kh->add_knot(* dynamic_cast<Geom::Point *>( this ), NULL, knot_shape, knot_mode, knot_color, param_getTooltip()->c_str() );
 137
 138         ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
 139         shape_editor->set_knotholder(kh);
 140     }
 141 }
 142
 143
 144
 145 void
 146 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 147 {
 148     param_set_and_write_new_value( (*this) * postmul );
 149 }
 150
 151
 152 void
 153 PointParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
 154 {
 155     knot_shape = shape;
 156     knot_mode  = mode;
 157     knot_color = color;
 158 }
 159
 160
 161 // CALLBACKS:
 162
 163 void
 164 PointParam::on_button_click()
 165 {
 166     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 167     SPItem * item = sp_desktop_selection(desktop)->singleItem();
 168     if (item != NULL) {
 169         param_editOncanvas(item, desktop);
 170     }
 171 }
 172
 173 } /* namespace LivePathEffect */
 174
 175 } /* namespace Inkscape */
 176
 177 /*
 178   Local Variables:
 179   mode:c++
 180   c-file-style:"stroustrup"
 181   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 182   indent-tabs-mode:nil
 183   fill-column:99
 184   End:
 185 */
 186 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :