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 #define LPEPOINTPARAM_DEBUG // undefine to disable all on-canvas editing code for PointParam
  29
  30 namespace Inkscape {
  31
  32 namespace LivePathEffect {
  33
  34 PointParam::PointParam( const Glib::ustring& label, const Glib::ustring& tip,
  35                         const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
  36                         Effect* effect, Geom::Point default_value )
  37     : Geom::Point(default_value), Parameter(label, tip, key, wr, effect), defvalue(default_value)
  38 {
  39 #ifdef LPEPOINTPARAM_DEBUG
  40     oncanvas_editable = true;
  41 #endif
  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 << (*this)[0] << "," << (*this)[1];
  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::RegisteredPoint * pointwdg = Gtk::manage(
  82         new Inkscape::UI::Widget::RegisteredPoint( param_label,
  83                                                    param_tooltip,
  84                                                    param_key,
  85                                                    *param_wr,
  86                                                    param_effect->getRepr(),
  87                                                    param_effect->getSPDoc() ) );
  88     pointwdg->setValue( (*this)[0], (*this)[1] );
  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 #ifndef LPEPOINTPARAM_DEBUG
 100     pButton->set_sensitive(false);
 101 #endif
 102
 103     Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
 104     static_cast<Gtk::HBox*>(hbox)->pack_start(*pButton, true, true);
 105     static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
 106     static_cast<Gtk::HBox*>(hbox)->show_all_children();
 107
 108     tooltips->set_tip(*pButton, _("Edit on-canvas"));
 109
 110     return dynamic_cast<Gtk::Widget *> (hbox);
 111 }
 112
 113 void
 114 PointParam::param_setValue(Geom::Point newpoint)
 115 {
 116     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 117 }
 118
 119 void
 120 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 121 {
 122     Inkscape::SVGOStringStream os;
 123     os << newpoint[0] << "," << newpoint[1];
 124     gchar * str = g_strdup(os.str().c_str());
 125     param_write_to_repr(str);
 126     g_free(str);
 127 }
 128
 129 void
 130 PointParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
 131 {
 132     // If not already in nodecontext, goto it!
 133     if (!tools_isactive(dt, TOOLS_NODES)) {
 134         tools_switch_current(TOOLS_NODES);
 135     }
 136
 137     PointParamKnotHolder * kh =  pointparam_knot_holder_new( dt, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str(), item);
 138     if (kh) {
 139         pointparam_knot_holder_add_full(kh, * dynamic_cast<Geom::Point *>( this ), NULL, knot_shape, knot_mode, knot_color, param_getTooltip()->c_str() );
 140
 141         ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
 142         shape_editor->set_knotholder(kh);
 143     }
 144 }
 145
 146
 147
 148 void
 149 PointParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
 150 {
 151     param_set_and_write_new_value( (*this) * postmul );
 152 }
 153
 154
 155 void
 156 PointParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
 157 {
 158     knot_shape = shape;
 159     knot_mode  = mode;
 160     knot_color = color;
 161 }
 162
 163
 164 // CALLBACKS:
 165
 166 void
 167 PointParam::on_button_click()
 168 {
 169     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 170     SPItem * item = sp_desktop_selection(desktop)->singleItem();
 171     if (item != NULL) {
 172         param_editOncanvas(item, desktop);
 173     }
 174 }
 175
 176 } /* namespace LivePathEffect */
 177
 178 } /* namespace Inkscape */
 179
 180 /*
 181   Local Variables:
 182   mode:c++
 183   c-file-style:"stroustrup"
 184   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 185   indent-tabs-mode:nil
 186   fill-column:99
 187   End:
 188 */
 189 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :