1f0e6f3be181c658c9404ee42bc717bd52e1af8a
1 #define INKSCAPE_LIVEPATHEFFECT_PARAMETER_PATH_CPP
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 */
9 #include "live_effects/parameter/path.h"
10 #include "live_effects/effect.h"
11 #include "live_effects/n-art-bpath-2geom.h"
12 #include "svg/svg.h"
13 #include <2geom/svg-path-parser.h>
14 #include <2geom/sbasis-to-bezier.h>
15 #include <2geom/d2.h>
17 #include "ui/widget/point.h"
18 #include "widgets/icon.h"
19 #include <gtk/gtkstock.h>
20 #include "selection-chemistry.h"
22 #include "desktop.h"
23 #include "inkscape.h"
24 #include "message-stack.h"
25 #include "verbs.h"
26 #include "document.h"
28 // needed for on-canvas editting:
29 #include "tools-switch.h"
30 #include "shape-editor.h"
31 #include "node-context.h"
32 #include "desktop-handles.h"
33 #include "selection.h"
34 #include "nodepath.h"
36 namespace Inkscape {
38 namespace LivePathEffect {
40 PathParam::PathParam( const Glib::ustring& label, const Glib::ustring& tip,
41 const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
42 Effect* effect, const gchar * default_value)
43 : Parameter(label, tip, key, wr, effect)
44 {
45 _widget = NULL;
46 _tooltips = NULL;
47 edit_button = NULL;
48 defvalue = g_strdup(default_value);
49 param_readSVGValue(defvalue);
50 oncanvas_editable = true;
51 }
53 PathParam::~PathParam()
54 {
55 if (_tooltips)
56 delete _tooltips;
57 // _widget is managed by GTK so do not delete!
59 g_free(defvalue);
60 }
62 void
63 PathParam::param_set_default()
64 {
65 param_readSVGValue(defvalue);
66 }
68 bool
69 PathParam::param_readSVGValue(const gchar * strvalue)
70 {
71 if (strvalue) {
72 Geom::Piecewise<Geom::D2<Geom::SBasis> > newpath;
73 std::vector<Geom::Path> temppath = SVGD_to_2GeomPath(strvalue);
74 for (unsigned int i=0; i < temppath.size(); i++) {
75 newpath.concat( temppath[i].toPwSb() );
76 }
77 *( dynamic_cast<Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this) ) = newpath;
78 signal_path_changed.emit();
79 return true;
80 }
82 return false;
83 }
85 gchar *
86 PathParam::param_writeSVGValue() const
87 {
88 const std::vector<Geom::Path> temppath =
89 Geom::path_from_piecewise(* dynamic_cast<const Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this), LPE_CONVERSION_TOLERANCE);
90 gchar * svgd = SVGD_from_2GeomPath( temppath );
91 return svgd;
92 }
94 Gtk::Widget *
95 PathParam::param_getWidget()
96 {
97 if (!_widget) {
98 _widget = Gtk::manage(new Gtk::HBox());
99 _tooltips = new Gtk::Tooltips();
101 Gtk::Label* pLabel = Gtk::manage(new Gtk::Label(param_label));
102 static_cast<Gtk::HBox*>(_widget)->pack_start(*pLabel, true, true);
103 _tooltips->set_tip(*pLabel, param_tooltip);
105 Gtk::Widget* pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
106 Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
107 pButton->set_relief(Gtk::RELIEF_NONE);
108 pIcon->show();
109 pButton->add(*pIcon);
110 pButton->show();
111 pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_edit_button_click));
112 static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
113 _tooltips->set_tip(*pButton, _("Edit on-canvas"));
114 edit_button = pButton;
116 pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_PASTE, Inkscape::ICON_SIZE_BUTTON) );
117 pButton = Gtk::manage(new Gtk::Button());
118 pButton->set_relief(Gtk::RELIEF_NONE);
119 pIcon->show();
120 pButton->add(*pIcon);
121 pButton->show();
122 pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_paste_button_click));
123 static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
124 _tooltips->set_tip(*pButton, _("Paste path"));
126 static_cast<Gtk::HBox*>(_widget)->show_all_children();
128 }
129 return dynamic_cast<Gtk::Widget *> (_widget);
130 }
132 void
133 PathParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
134 {
135 // If not already in nodecontext, goto it!
136 if (!tools_isactive(dt, TOOLS_NODES)) {
137 tools_switch_current(TOOLS_NODES);
138 }
140 ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
141 shape_editor->set_item_livepatheffect_parameter(item, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str());
142 }
144 void
145 PathParam::param_setup_nodepath(Inkscape::NodePath::Path *np)
146 {
147 np->show_helperpath = true;
148 np->helperpath_rgba = 0x009000ff;
149 np->helperpath_width = 1.0;
150 }
152 void
153 PathParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
154 {
155 param_set_and_write_new_value( (*this) * postmul );
156 }
158 void
159 PathParam::param_set_and_write_new_value (Geom::Piecewise<Geom::D2<Geom::SBasis> > newpath)
160 {
161 const std::vector<Geom::Path> temppath = Geom::path_from_piecewise(newpath, LPE_CONVERSION_TOLERANCE);
162 gchar * svgd = SVGD_from_2GeomPath( temppath );
163 param_write_to_repr(svgd);
164 g_free(svgd);
165 }
167 /* CALLBACK FUNCTIONS FOR THE BUTTONS */
168 void
169 PathParam::on_edit_button_click()
170 {
171 SPItem * item = sp_desktop_selection(SP_ACTIVE_DESKTOP)->singleItem();
172 if (item != NULL) {
173 param_editOncanvas(item, SP_ACTIVE_DESKTOP);
174 }
175 }
177 void
178 PathParam::on_paste_button_click()
179 {
180 // check if something is in the clipboard
181 GSList * clipboard = sp_selection_get_clipboard();
182 if (clipboard == NULL || clipboard->data == NULL) {
183 SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Nothing on the clipboard."));
184 return;
185 }
187 Inkscape::XML::Node *repr = (Inkscape::XML::Node *) clipboard->data;
188 if (!strcmp (repr->name(), "svg:path")) {
189 const char * svgd = repr->attribute("d");
190 if (svgd) {
191 if (strchr(svgd,'A')) { // FIXME: temporary hack until 2Geom supports arcs in SVGD
192 SP_ACTIVE_DESKTOP->messageStack()->flash( Inkscape::WARNING_MESSAGE,
193 _("This effect does not support arcs yet, try to convert to path.") );
194 return;
195 } else {
196 param_write_to_repr(svgd);
197 signal_path_pasted.emit();
198 sp_document_done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
199 _("Paste path parameter"));
200 }
201 }
202 } else {
203 SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Clipboard does not contain a path."));
204 return;
205 }
206 }
209 } /* namespace LivePathEffect */
211 } /* namespace Inkscape */
213 /*
214 Local Variables:
215 mode:c++
216 c-file-style:"stroustrup"
217 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
218 indent-tabs-mode:nil
219 fill-column:99
220 End:
221 */
222 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :