1 /**
2 * \brief SVG Fonts dialog
3 *
4 * Authors:
5 * Felipe C. da S. Sanches <felipe.sanches@gmail.com>
6 *
7 * Copyright (C) 2008 Authors
8 *
9 * Released under GNU GPLv2 (or later). Read the file 'COPYING' for more information.
10 */
12 #ifdef HAVE_CONFIG_H
13 # include <config.h>
14 #endif
16 #ifdef ENABLE_SVG_FONTS
18 #include <gtkmm/notebook.h>
19 #include "svg-fonts-dialog.h"
20 #include <glibmm/i18n.h>
21 #include <string.h>
23 SvgFontDrawingArea::SvgFontDrawingArea(){
24 this->text = "";
25 this->svgfont = NULL;
26 }
28 void SvgFontDrawingArea::set_svgfont(SvgFont* svgfont){
29 this->svgfont = svgfont;
30 }
32 void SvgFontDrawingArea::set_text(Glib::ustring text){
33 this->text = text;
34 }
36 void SvgFontDrawingArea::set_size(int x, int y){
37 this->x = x;
38 this->y = y;
39 ((Gtk::Widget*) this)->set_size_request(x, y);
40 }
42 void SvgFontDrawingArea::redraw(){
43 ((Gtk::Widget*) this)->queue_draw();
44 }
46 bool SvgFontDrawingArea::on_expose_event (GdkEventExpose *event){
47 if (this->svgfont){
48 Glib::RefPtr<Gdk::Window> window = get_window();
49 Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
50 cr->set_font_face( Cairo::RefPtr<Cairo::FontFace>(new Cairo::FontFace(this->svgfont->get_font_face(), false /* does not have reference */)) );
51 cr->set_font_size (this->y-20);
52 cr->move_to (10, 10);
53 cr->show_text (this->text.c_str());
54 }
55 return TRUE;
56 }
58 namespace Inkscape {
59 namespace UI {
60 namespace Dialog {
62 Gtk::HBox* SvgFontsDialog::AttrEntry(gchar* lbl){
63 Gtk::HBox* hbox = Gtk::manage(new Gtk::HBox());
64 hbox->add(* Gtk::manage(new Gtk::Label(lbl)) );
65 hbox->add(* Gtk::manage(new Gtk::Entry()) );
66 hbox->show_all();
67 return hbox;
68 }
70 /*** SvgFontsDialog ***/
72 GlyphComboBox::GlyphComboBox(){
73 }
75 void GlyphComboBox::update(SPFont* spfont){
76 if (spfont) {
77 this->clear();
78 for(SPObject* node = spfont->children; node; node=node->next){
79 if (SP_IS_GLYPH(node)){
80 this->append_text(((SPGlyph*)node)->unicode);
81 }
82 }
83 }
84 }
86 void SvgFontsDialog::on_kerning_changed(){
87 if (this->kerning_pair){
88 this->kerning_pair->k = kerning_spin.get_value();
89 kerning_preview.redraw();
90 _font_da.redraw();
91 }
92 }
94 void SvgFontsDialog::on_glyphs_changed(){
95 std::string str1(first_glyph.get_active_text());
96 std::string str2(second_glyph.get_active_text());
97 kerning_preview.set_text((gchar*) (str1+str2).c_str());
98 kerning_preview.redraw();
101 //look for this kerning pair on the currently selected font
102 this->kerning_pair = NULL;
103 for(SPObject* node = this->get_selected_spfont()->children; node; node=node->next){
104 if (SP_IS_HKERN(node) && ((SPGlyphKerning*)node)->u1->contains((gchar) first_glyph.get_active_text().c_str()[0])
105 && ((SPGlyphKerning*)node)->u2->contains((gchar) second_glyph.get_active_text().c_str()[0]) ){
106 this->kerning_pair = (SPGlyphKerning*)node;
107 continue;
108 }
109 }
111 //TODO:
112 //if not found,
113 //create new kern node
114 if (this->kerning_pair)
115 kerning_spin.set_value(this->kerning_pair->k);
116 }
118 /* Add all fonts in the document to the combobox. */
119 void SvgFontsDialog::update_fonts()
120 {
121 SPDesktop* desktop = this->getDesktop();
122 SPDocument* document = sp_desktop_document(desktop);
123 const GSList* fonts = sp_document_get_resource_list(document, "font");
125 _model->clear();
126 for(const GSList *l = fonts; l; l = l->next) {
127 Gtk::TreeModel::Row row = *_model->append();
128 SPFont* f = (SPFont*)l->data;
129 row[_columns.spfont] = f;
130 row[_columns.svgfont] = new SvgFont(f);
131 const gchar* lbl = f->label();
132 const gchar* id = SP_OBJECT_ID(f);
133 row[_columns.label] = lbl ? lbl : (id ? id : "font");
134 }
135 }
137 void SvgFontsDialog::on_preview_text_changed(){
138 _font_da.set_text((gchar*) _preview_entry.get_text().c_str());
139 _font_da.set_text(_preview_entry.get_text());
140 _font_da.redraw();
141 }
143 void SvgFontsDialog::on_font_selection_changed(){
144 SPFont* spfont = this->get_selected_spfont();
145 SvgFont* svgfont = this->get_selected_svgfont();
146 first_glyph.update(spfont);
147 second_glyph.update(spfont);
148 kerning_preview.set_svgfont(svgfont);
149 _font_da.set_svgfont(svgfont);
150 _font_da.redraw();
152 int steps = 50;
153 double set_width = spfont->horiz_adv_x;
154 setwidth_spin.set_value(set_width);
156 kerning_spin.set_range(0,set_width);
157 kerning_spin.set_increments(int(set_width/steps),2*int(set_width/steps));
158 kerning_spin.set_value(0);
159 }
161 void SvgFontsDialog::on_setwidth_changed(){
162 SPFont* spfont = this->get_selected_spfont();
163 if (spfont){
164 spfont->horiz_adv_x = setwidth_spin.get_value();
165 //TODO: tell cairo that the glyphs cache has to be invalidated
166 }
167 }
169 SvgFont* SvgFontsDialog::get_selected_svgfont()
170 {
171 Gtk::TreeModel::iterator i = _font_list.get_selection()->get_selected();
172 if(i)
173 return (*i)[_columns.svgfont];
174 return NULL;
175 }
177 SPFont* SvgFontsDialog::get_selected_spfont()
178 {
179 Gtk::TreeModel::iterator i = _font_list.get_selection()->get_selected();
180 if(i)
181 return (*i)[_columns.spfont];
182 return NULL;
183 }
185 Gtk::VBox* SvgFontsDialog::global_settings_tab(){
186 Gtk::VBox* global_vbox = Gtk::manage(new Gtk::VBox());
188 //Set Width (horiz_adv_x):
189 Gtk::HBox* setwidth_hbox = Gtk::manage(new Gtk::HBox());
190 setwidth_hbox->add(*Gtk::manage(new Gtk::Label(_("Set width:"))));
191 setwidth_hbox->add(setwidth_spin);
193 setwidth_spin.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_setwidth_changed));
194 setwidth_spin.set_range(0, 4096);
195 setwidth_spin.set_increments(10, 100);
196 global_vbox->add(*setwidth_hbox);
198 return global_vbox;
199 }
201 Gtk::VBox* SvgFontsDialog::glyphs_tab(){
202 Gtk::VBox* glyphs_vbox = Gtk::manage(new Gtk::VBox());
203 glyphs_vbox->add(*AttrEntry((gchar*) "Name"));
204 glyphs_vbox->add(*AttrEntry((gchar*) "Unicode"));
205 return glyphs_vbox;
206 }
208 Gtk::VBox* SvgFontsDialog::kerning_tab(){
210 //kerning setup:
211 Gtk::VBox* kernvbox = Gtk::manage(new Gtk::VBox());
213 //Kerning Setup:
214 kernvbox->add(*Gtk::manage(new Gtk::Label(_("Kerning Setup:"))));
215 Gtk::HBox* kerning_selector = Gtk::manage(new Gtk::HBox());
216 kerning_selector->add(*Gtk::manage(new Gtk::Label(_("1st Glyph:"))));
217 kerning_selector->add(first_glyph);
218 kerning_selector->add(*Gtk::manage(new Gtk::Label(_("2nd Glyph:"))));
219 kerning_selector->add(second_glyph);
220 first_glyph.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_glyphs_changed));
221 second_glyph.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_glyphs_changed));
222 kerning_spin.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_kerning_changed));
224 kernvbox->add(*kerning_selector);
225 kernvbox->add((Gtk::Widget&) kerning_preview);
227 Gtk::HBox* kerning_amount_hbox = Gtk::manage(new Gtk::HBox());
228 kernvbox->add(*kerning_amount_hbox);
229 kerning_amount_hbox->add(*Gtk::manage(new Gtk::Label(_("Kerning value:"))));
230 kerning_amount_hbox->add(kerning_spin);
232 kerning_preview.set_size(300 + 20, 150 + 20);
233 _font_da.set_size(150 + 20, 50 + 20);
235 return kernvbox;
236 }
238 SvgFontsDialog::SvgFontsDialog()
239 : UI::Widget::Panel("", "dialogs.svgfonts", SP_VERB_DIALOG_SVG_FONTS)
240 {
241 Gtk::HBox* hbox = Gtk::manage(new Gtk::HBox());
242 hbox->add(_font_list);
243 hbox->add(_font_settings);
244 _getContents()->add(*hbox);
246 //List of SVGFonts declared in a document:
247 _model = Gtk::ListStore::create(_columns);
248 _font_list.set_model(_model);
249 _font_list.append_column_editable(_("_Font"), _columns.label);
250 _font_list.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_font_selection_changed));
252 this->update_fonts();
254 Gtk::Notebook *tabs = Gtk::manage(new Gtk::Notebook());
255 tabs->set_scrollable();
257 tabs->append_page(*global_settings_tab(), _("_Global Settings"), true);
258 tabs->append_page(*glyphs_tab(), _("_Glyphs"), true);
259 tabs->append_page(*kerning_tab(), _("_Kerning"), true);
261 _font_settings.add(*tabs);
263 //Text Preview:
264 _preview_entry.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_preview_text_changed));
265 _getContents()->add((Gtk::Widget&) _font_da);
266 _preview_entry.set_text("Sample Text");
267 _font_da.set_text("Sample Text");
269 Gtk::HBox* preview_entry_hbox = Gtk::manage(new Gtk::HBox());
270 _getContents()->add(*preview_entry_hbox);
271 preview_entry_hbox->add(*Gtk::manage(new Gtk::Label(_("Preview Text:"))));
272 preview_entry_hbox->add(_preview_entry);
274 _getContents()->show_all();
275 }
277 SvgFontsDialog::~SvgFontsDialog(){}
279 } // namespace Dialog
280 } // namespace UI
281 } // namespace Inkscape
283 #endif //#ifdef ENABLE_SVG_FONTS