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"
21 #include "xml/repr.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 defvalue = g_strdup(default_value);
46 param_readSVGValue(defvalue);
47 oncanvas_editable = true;
48 }
50 PathParam::~PathParam()
51 {
52 g_free(defvalue);
53 }
55 void
56 PathParam::param_set_default()
57 {
58 param_readSVGValue(defvalue);
59 }
61 void
62 PathParam::param_set_and_write_default()
63 {
64 param_write_to_repr(defvalue);
65 }
67 bool
68 PathParam::param_readSVGValue(const gchar * strvalue)
69 {
70 if (strvalue) {
71 Geom::Piecewise<Geom::D2<Geom::SBasis> > newpath;
72 std::vector<Geom::Path> temppath = SVGD_to_2GeomPath(strvalue);
73 for (unsigned int i=0; i < temppath.size(); i++) {
74 newpath.concat( temppath[i].toPwSb() );
75 }
76 *( dynamic_cast<Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this) ) = newpath;
77 signal_path_changed.emit();
78 return true;
79 }
81 return false;
82 }
84 gchar *
85 PathParam::param_writeSVGValue() const
86 {
87 const std::vector<Geom::Path> temppath =
88 Geom::path_from_piecewise(* dynamic_cast<const Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this), LPE_CONVERSION_TOLERANCE);
89 gchar * svgd = SVGD_from_2GeomPath( temppath );
90 return svgd;
91 }
93 Gtk::Widget *
94 PathParam::param_newWidget(Gtk::Tooltips * tooltips)
95 {
96 Gtk::HBox * _widget = Gtk::manage(new Gtk::HBox());
98 Gtk::Label* pLabel = Gtk::manage(new Gtk::Label(param_label));
99 static_cast<Gtk::HBox*>(_widget)->pack_start(*pLabel, true, true);
100 tooltips->set_tip(*pLabel, param_tooltip);
102 Gtk::Widget* pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );
103 Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
104 pButton->set_relief(Gtk::RELIEF_NONE);
105 pIcon->show();
106 pButton->add(*pIcon);
107 pButton->show();
108 pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_edit_button_click));
109 static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
110 tooltips->set_tip(*pButton, _("Edit on-canvas"));
112 pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_COPY, Inkscape::ICON_SIZE_BUTTON) );
113 pButton = Gtk::manage(new Gtk::Button());
114 pButton->set_relief(Gtk::RELIEF_NONE);
115 pIcon->show();
116 pButton->add(*pIcon);
117 pButton->show();
118 pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_copy_button_click));
119 static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
120 tooltips->set_tip(*pButton, _("Copy path"));
122 pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_PASTE, Inkscape::ICON_SIZE_BUTTON) );
123 pButton = Gtk::manage(new Gtk::Button());
124 pButton->set_relief(Gtk::RELIEF_NONE);
125 pIcon->show();
126 pButton->add(*pIcon);
127 pButton->show();
128 pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_paste_button_click));
129 static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
130 tooltips->set_tip(*pButton, _("Paste path"));
132 static_cast<Gtk::HBox*>(_widget)->show_all_children();
134 return dynamic_cast<Gtk::Widget *> (_widget);
135 }
137 void
138 PathParam::param_editOncanvas(SPItem * item, SPDesktop * dt)
139 {
140 // If not already in nodecontext, goto it!
141 if (!tools_isactive(dt, TOOLS_NODES)) {
142 tools_switch_current(TOOLS_NODES);
143 }
145 ShapeEditor * shape_editor = SP_NODE_CONTEXT( dt->event_context )->shape_editor;
146 shape_editor->set_item_lpe_path_parameter(item, SP_OBJECT(param_effect->getLPEObj()), param_key.c_str());
147 }
149 void
150 PathParam::param_setup_nodepath(Inkscape::NodePath::Path *np)
151 {
152 np->show_helperpath = true;
153 np->helperpath_rgba = 0x009000ff;
154 np->helperpath_width = 1.0;
155 }
157 void
158 PathParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
159 {
160 param_set_and_write_new_value( (*this) * postmul );
161 }
163 void
164 PathParam::param_set_and_write_new_value (Geom::Piecewise<Geom::D2<Geom::SBasis> > newpath)
165 {
166 const std::vector<Geom::Path> temppath = Geom::path_from_piecewise(newpath, LPE_CONVERSION_TOLERANCE);
167 gchar * svgd = SVGD_from_2GeomPath( temppath );
168 param_write_to_repr(svgd);
169 g_free(svgd);
170 }
172 /* CALLBACK FUNCTIONS FOR THE BUTTONS */
173 void
174 PathParam::on_edit_button_click()
175 {
176 SPItem * item = sp_desktop_selection(SP_ACTIVE_DESKTOP)->singleItem();
177 if (item != NULL) {
178 param_editOncanvas(item, SP_ACTIVE_DESKTOP);
179 }
180 }
182 void
183 PathParam::on_paste_button_click()
184 {
185 // check if something is in the clipboard
186 GSList * clipboard = sp_selection_get_clipboard();
187 if (clipboard == NULL || clipboard->data == NULL) {
188 SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Nothing on the clipboard."));
189 return;
190 }
192 Inkscape::XML::Node *repr = (Inkscape::XML::Node *) clipboard->data;
193 if (!strcmp (repr->name(), "svg:path")) {
194 const char * svgd = repr->attribute("d");
195 if (svgd) {
196 if (strchr(svgd,'A')) { // FIXME: temporary hack until 2Geom supports arcs in SVGD
197 SP_ACTIVE_DESKTOP->messageStack()->flash( Inkscape::WARNING_MESSAGE,
198 _("This effect does not support arcs yet, try to convert to path.") );
199 return;
200 } else {
201 param_write_to_repr(svgd);
202 signal_path_pasted.emit();
203 sp_document_done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
204 _("Paste path parameter"));
205 }
206 }
207 } else {
208 SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Clipboard does not contain a path."));
209 return;
210 }
211 }
213 void
214 PathParam::on_copy_button_click()
215 {
216 sp_selection_copy_lpe_pathparam(this);
217 }
219 } /* namespace LivePathEffect */
221 } /* namespace Inkscape */
223 /*
224 Local Variables:
225 mode:c++
226 c-file-style:"stroustrup"
227 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
228 indent-tabs-mode:nil
229 fill-column:99
230 End:
231 */
232 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :