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, const gchar *htip, 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     handle_tip = g_strdup(htip);
  44 }
  45
  46 PointParam::~PointParam()
  47 {
  48     if (handle_tip)
  49         g_free(handle_tip);
  50 }
  51
  52 void
  53 PointParam::param_set_default()
  54 {
  55     param_setValue(defvalue);
  56 }
  57
  58 bool
  59 PointParam::param_readSVGValue(const gchar * strvalue)
  60 {
  61     gchar ** strarray = g_strsplit(strvalue, ",", 2);
  62     double newx, newy;
  63     unsigned int success = sp_svg_number_read_d(strarray[0], &newx);
  64     success += sp_svg_number_read_d(strarray[1], &newy);
  65     g_strfreev (strarray);
  66     if (success == 2) {
  67         param_setValue( Geom::Point(newx, newy) );
  68         return true;
  69     }
  70     return false;
  71 }
  72
  73 gchar *
  74 PointParam::param_getSVGValue() const
  75 {
  76     Inkscape::SVGOStringStream os;
  77     os << *dynamic_cast<Geom::Point const *>( this );
  78     gchar * str = g_strdup(os.str().c_str());
  79     return str;
  80 }
  81
  82 Gtk::Widget *
  83 PointParam::param_newWidget(Gtk::Tooltips * tooltips)
  84 {
  85     Inkscape::UI::Widget::RegisteredTransformedPoint * pointwdg = Gtk::manage(
  86         new Inkscape::UI::Widget::RegisteredTransformedPoint( param_label,
  87                                                               param_tooltip,
  88                                                               param_key,
  89                                                               *param_wr,
  90                                                               param_effect->getRepr(),
  91                                                               param_effect->getSPDoc() ) );
  92     // TODO: fix to get correct desktop (don't use SP_ACTIVE_DESKTOP)
  93     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
  94     Geom::Matrix transf = to_2geom(desktop->doc2dt());
  95     pointwdg->setTransform(transf);
  96     pointwdg->setValue( *this );
  97     pointwdg->clearProgrammatically();
  98     pointwdg->set_undo_parameters(SP_VERB_DIALOG_LIVE_PATH_EFFECT, _("Change point parameter"));
  99
 100     Gtk::HBox * hbox = Gtk::manage( new Gtk::HBox() );
 101     static_cast<Gtk::HBox*>(hbox)->pack_start(*pointwdg, true, true);
 102     static_cast<Gtk::HBox*>(hbox)->show_all_children();
 103
 104     return dynamic_cast<Gtk::Widget *> (hbox);
 105 }
 106
 107 void
 108 PointParam::param_setValue(Geom::Point newpoint)
 109 {
 110     *dynamic_cast<Geom::Point *>( this ) = newpoint;
 111 }
 112
 113 void
 114 PointParam::param_set_and_write_new_value (Geom::Point newpoint)
 115 {
 116     Inkscape::SVGOStringStream os;
 117     os << newpoint;
 118     gchar * str = g_strdup(os.str().c_str());
 119     param_write_to_repr(str);
 120     g_free(str);
 121 }
 122
 123 void
 124 PointParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
 125 {
 126     // If not already in nodecontext, goto it!
 127     if (!tools_isactive(dt, TOOLS_NODES)) {
 128         tools_switch_current(TOOLS_NODES);
 129     }
 130
 131     PointParamKnotHolder * kh =  new PointParamKnotHolder(dt, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str(), item);
 132     if (kh) {
 133         kh->add_knot(* dynamic_cast<Geom::Point *>( this ), NULL, knot_shape, knot_mode, knot_color, param_getTooltip()->c_str() );
 134
 135         ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
 136         shape_editor->set_knotholder(kh);
 137     }
 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 void
 150 PointParam::set_oncanvas_looks(SPKnotShapeType shape, SPKnotModeType mode, guint32 color)
 151 {
 152     knot_shape = shape;
 153     knot_mode  = mode;
 154     knot_color = color;
 155 }
 156
 157 void
 158 PointParam::knot_set(NR::Point const &p, NR::Point const &origin, guint state)
 159 {
 160     param_setValue(p.to_2geom());
 161     sp_lpe_item_update_patheffect(SP_LPE_ITEM(item), false, false);
 162 }
 163
 164 NR::Point
 165 PointParam::knot_get()
 166 {
 167     return *this;
 168 }
 169
 170 void
 171 PointParam::knot_click(guint state)
 172 {
 173     g_print ("This is the handle associated to the parameter '%s'\n", param_key.c_str());
 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 :