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 #include "ui/widget/registered-widget.h"
  17 #include "inkscape.h"
  18 #include "verbs.h"
  19
  20 // needed for on-canvas editting:
  21 #include "tools-switch.h"
  22 #include "node-context.h"
  23 #include "shape-editor.h"
  24 #include "desktop.h"
  25 #include "selection.h"
  26
  27 #define LPEPOINTPARAM_DEBUG // undefine to disable all on-canvas editing code for PointParam
  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 #ifdef LPEPOINTPARAM_DEBUG
  39     oncanvas_editable = true;
  40 #endif
  41 }
  42
  43 PointParam::~PointParam()
  44 {
  45 }
  46
  47 void
  48 PointParam::param_set_default()
  49 {
  50     param_setValue(defvalue);
  51 }
  52
  53 bool
  54 PointParam::param_readSVGValue(const gchar * strvalue)
  55 {
  56     gchar ** strarray = g_strsplit(strvalue, ",", 2);
  57     double newx, newy;
  58     unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
  59     success += sp_svg_number_read_d(strarray[1], &newy);
  60     g_strfreev (strarray);
  61     if (success == 2) {
  62         param_setValue( Geom::Point(newx, newy) );
  63         return true;
  64     }
  65     return false;
  66 }
  67
  68 gchar *
  69 PointParam::param_writeSVGValue() const
  70 {
  71     Inkscape::SVGOStringStream os;
  72     os << (*this)[0] << "," << (*this)[1];
  73     gchar * str = g_strdup(os.str().c_str());
  74     return str;
  75 }
  76
  77 Gtk::Widget *
  78 PointParam::param_newWidget(Gtk::Tooltips * tooltips)
  79 {
  80     Inkscape::UI::Widget::RegisteredPoint * pointwdg = Gtk::manage(
  81         new Inkscape::UI::Widget::RegisteredPoint( param_label,
  82                                                    param_tooltip,
  83                                                    param_key,
  84                                                    *param_wr,
  85                                                    param_effect->getRepr(),
  86                                                    param_effect->getSPDoc() ) );
  87     pointwdg->setValue( (*this)[0], (*this)[1] );
  88     pointwdg->clearProgrammatically();
  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     Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
 103     static_cast<Gtk::HBox*>(hbox)->pack_start(*pButton, true, true);
 104     static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
 105     static_cast<Gtk::HBox*>(hbox)->show_all_children();
 106
 107     tooltips->set_tip(*pButton, _("Edit on-canvas"));
 108
 109     return dynamic_cast<Gtk::Widget *> (hbox);
 110 }
 111
 112 void
 113 PointParam::param_setValue(Geom::Point newpoint)
 114 {
 115     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 116 }
 117
 118 void
 119 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 120 {
 121     Inkscape::SVGOStringStream os;
 122     os << newpoint[0] << "," << newpoint[1];
 123     gchar * str = g_strdup(os.str().c_str());
 124     param_write_to_repr(str);
 125     g_free(str);
 126 }
 127
 128 void
 129 PointParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
 130 {
 131     // If not already in nodecontext, goto it!
 132     if (!tools_isactive(dt, TOOLS_NODES)) {
 133         tools_switch_current(TOOLS_NODES);
 134     }
 135
 136     ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
 137     shape_editor->set_item_lpe_point_parameter(item, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str());
 138 }
 139
 140
 141
 142 void
 143 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 144 {
 145     param_set_and_write_new_value( (*this) * postmul );
 146 }
 147
 148
 149 // CALLBACKS:
 150
 151 void
 152 PointParam::on_button_click()
 153 {
 154     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 155     SPItem * item = sp_desktop_selection(desktop)->singleItem();
 156     if (item != NULL) {
 157         param_editOncanvas(item, desktop);
 158     }
 159 }
 160
 161 } /* namespace LivePathEffect */
 162
 163 } /* namespace Inkscape */
 164
 165 /*
 166   Local Variables:
 167   mode:c++
 168   c-file-style:"stroustrup"
 169   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 170   indent-tabs-mode:nil
 171   fill-column:99
 172   End:
 173 */
 174 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :