1 /**
2 * \brief LivePathEffect dialog
3 *
4 * Authors:
5 * Johan Engelen <j.b.c.engelen@utwente.nl>
6 *
7 * Copyright (C) 2007 Author
8 *
9 * Released under GNU GPL. Read the file 'COPYING' for more information.
10 */
12 #ifdef HAVE_CONFIG_H
13 # include <config.h>
14 #endif
16 #include <glibmm/i18n.h>
17 #include "livepatheffect-editor.h"
18 #include "verbs.h"
19 #include "selection.h"
20 #include "sp-shape.h"
21 #include "sp-path.h"
22 #include "live_effects/effect.h"
23 #include "live_effects/lpeobject.h"
24 #include "gtkmm/widget.h"
25 #include <vector>
26 #include "inkscape.h"
27 #include "desktop-handles.h"
28 #include "desktop.h"
29 #include "document-private.h"
30 #include "xml/node.h"
31 #include "xml/document.h"
33 namespace Inkscape {
34 class Application;
36 namespace UI {
37 namespace Dialog {
40 /*####################
41 * Callback functions
42 */
43 static void lpeeditor_selection_changed (Inkscape::Selection * selection, gpointer data)
44 {
45 LivePathEffectEditor *lpeeditor = static_cast<LivePathEffectEditor *>(data);
46 lpeeditor->onSelectionChanged(selection);
47 }
50 /*#######################
51 * LivePathEffectEditor
52 */
54 LivePathEffectEditor::LivePathEffectEditor()
55 : UI::Widget::Panel("", "dialogs.livepatheffect", SP_VERB_DIALOG_LIVE_PATH_EFFECT),
56 combo_effecttype(Inkscape::LivePathEffect::LPETypeConverter),
57 button_apply(_("_Apply"), _("Apply chosen effect to selection")),
58 button_remove(_("_Remove"), _("Remove effect from selection")),
59 effectwidget(NULL),
60 explain_label("", Gtk::ALIGN_CENTER),
61 effectapplication_frame(_("Apply new effect")),
62 effectcontrol_frame(_("Current effect")),
63 current_desktop(NULL)
64 {
65 Gtk::Box *contents = _getContents();
66 contents->set_spacing(4);
68 effectapplication_hbox.set_spacing(4);
69 effectcontrol_vbox.set_spacing(4);
71 effectapplication_hbox.pack_start(combo_effecttype, true, true);
72 effectapplication_hbox.pack_start(button_apply, true, true);
73 effectapplication_frame.add(effectapplication_hbox);
75 effectcontrol_vbox.pack_start(explain_label, true, true);
76 effectcontrol_vbox.pack_end(button_remove, true, true);
77 effectcontrol_frame.add(effectcontrol_vbox);
79 contents->pack_start(effectapplication_frame, true, true);
80 contents->pack_start(effectcontrol_frame, true, true);
82 // connect callback functions to buttons
83 button_apply.signal_clicked().connect(sigc::mem_fun(*this, &LivePathEffectEditor::onApply));
84 button_remove.signal_clicked().connect(sigc::mem_fun(*this, &LivePathEffectEditor::onRemove));
86 show_all_children();
88 button_remove.hide();
89 }
91 LivePathEffectEditor::~LivePathEffectEditor()
92 {
93 if (effectwidget) {
94 effectcontrol_vbox.remove(*effectwidget);
95 delete effectwidget;
96 effectwidget = NULL;
97 }
99 if (current_desktop) {
100 selection_changed_connection.disconnect();
101 }
102 }
104 void
105 LivePathEffectEditor::showParams(LivePathEffect::Effect* effect)
106 {
107 if (effectwidget) {
108 effectcontrol_vbox.remove(*effectwidget);
109 delete effectwidget;
110 effectwidget = NULL;
111 }
113 explain_label.set_markup("<b>" + effect->getName() + "</b>");
114 effectwidget = effect->newWidget(&tooltips);
115 if (effectwidget) {
116 effectcontrol_vbox.pack_start(*effectwidget, true, true);
117 }
118 button_remove.show();
120 effectcontrol_vbox.show_all_children();
121 // fixme: add resizing of dialog
122 }
124 void
125 LivePathEffectEditor::showText(Glib::ustring const &str)
126 {
127 if (effectwidget) {
128 effectcontrol_vbox.remove(*effectwidget);
129 delete effectwidget;
130 effectwidget = NULL;
131 }
133 explain_label.set_label(str);
134 button_remove.hide();
136 // fixme: do resizing of dialog ?
137 }
139 void
140 LivePathEffectEditor::set_sensitize_all(bool sensitive)
141 {
142 combo_effecttype.set_sensitive(sensitive);
143 button_apply.set_sensitive(sensitive);
144 button_remove.set_sensitive(sensitive);
145 }
147 void
148 LivePathEffectEditor::onSelectionChanged(Inkscape::Selection *sel)
149 {
150 if ( sel && !sel->isEmpty() ) {
151 SPItem *item = sel->singleItem();
152 if ( item ) {
153 if ( SP_IS_SHAPE(item) ) {
154 SPShape *shape = SP_SHAPE(item);
155 LivePathEffectObject *lpeobj = sp_shape_get_livepatheffectobject(shape);
156 set_sensitize_all(true);
157 if (lpeobj) {
158 if (lpeobj->lpe) {
159 showParams(lpeobj->lpe);
160 } else {
161 showText(_("Unknown effect is applied"));
162 }
163 } else {
164 showText(_("No effect applied"));
165 button_remove.set_sensitive(false);
166 }
167 } else {
168 showText(_("Item is not a shape or path"));
169 set_sensitize_all(false);
170 }
171 } else {
172 showText(_("Only one item can be selected"));
173 set_sensitize_all(false);
174 }
175 } else {
176 showText(_("Empty selection"));
177 set_sensitize_all(false);
178 }
179 }
181 void
182 LivePathEffectEditor::setDesktop(SPDesktop *desktop)
183 {
184 Panel::setDesktop(desktop);
186 if ( desktop == current_desktop ) {
187 return;
188 }
190 if (current_desktop) {
191 selection_changed_connection.disconnect();
192 }
194 current_desktop = desktop;
195 if (desktop) {
196 Inkscape::Selection *selection = sp_desktop_selection(desktop);
197 selection_changed_connection = selection->connectChanged(
198 sigc::bind (sigc::ptr_fun(&lpeeditor_selection_changed), this ) );
200 onSelectionChanged(selection);
201 } else {
202 onSelectionChanged(NULL);
203 }
204 }
209 /*########################################################################
210 # BUTTON CLICK HANDLERS (callbacks)
211 ########################################################################*/
213 // TODO: factor out the effect applying code which can be called from anywhere. (selection-chemistry.cpp also needs it)
215 void
216 LivePathEffectEditor::onApply()
217 {
218 Inkscape::Selection *sel = _getSelection();
219 if ( sel && !sel->isEmpty() ) {
220 SPItem *item = sel->singleItem();
221 if ( item && SP_IS_SHAPE(item) ) {
222 SPDocument *doc = current_desktop->doc();
224 const Util::EnumData<LivePathEffect::EffectType>* data = combo_effecttype.get_active_data();
225 if (!data) return;
227 Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
228 Inkscape::XML::Node *repr = xml_doc->createElement("inkscape:path-effect");
229 repr->setAttribute("effect", data->key.c_str() );
231 SP_OBJECT_REPR(SP_DOCUMENT_DEFS(doc))->addChild(repr, NULL); // adds to <defs> and assigns the 'id' attribute
232 const gchar * repr_id = repr->attribute("id");
233 Inkscape::GC::release(repr);
235 gchar *href = g_strdup_printf("#%s", repr_id);
236 sp_shape_set_path_effect(SP_SHAPE(item), href);
237 g_free(href);
239 // make sure there is an original-d for paths!!!
240 if ( SP_IS_PATH(item) ) {
241 Inkscape::XML::Node *pathrepr = SP_OBJECT_REPR(item);
242 if ( ! pathrepr->attribute("inkscape:original-d") ) {
243 pathrepr->setAttribute("inkscape:original-d", pathrepr->attribute("d"));
244 }
245 }
247 LivePathEffectObject *lpeobj = sp_shape_get_livepatheffectobject(SP_SHAPE(item));
248 if (lpeobj && lpeobj->lpe) {
249 lpeobj->lpe->resetDefaults(item);
250 }
252 sp_document_done(doc, SP_VERB_DIALOG_LIVE_PATH_EFFECT,
253 _("Create and apply path effect"));
254 }
255 }
256 }
258 void
259 LivePathEffectEditor::onRemove()
260 {
261 Inkscape::Selection *sel = _getSelection();
262 if ( sel && !sel->isEmpty() ) {
263 SPItem *item = sel->singleItem();
264 if ( item && SP_IS_SHAPE(item) ) {
265 sp_shape_remove_path_effect(SP_SHAPE(item));
266 sp_document_done ( sp_desktop_document (current_desktop), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
267 _("Remove path effect") );
268 }
269 }
270 }
274 } // namespace Dialog
275 } // namespace UI
276 } // namespace Inkscape