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 "svg-fonts-dialog.h"
19 #include <glibmm/i18n.h>
20 #include <string.h>
22 SvgFontDrawingArea::SvgFontDrawingArea(){
23 this->text = "";
24 this->svgfont = NULL;
25 }
27 void SvgFontDrawingArea::set_svgfont(SvgFont* svgfont){
28 this->svgfont = svgfont;
29 }
31 void SvgFontDrawingArea::set_text(Glib::ustring text){
32 this->text = text;
33 }
35 void SvgFontDrawingArea::set_size(int x, int y){
36 this->x = x;
37 this->y = y;
38 ((Gtk::Widget*) this)->set_size_request(x, y);
39 }
41 void SvgFontDrawingArea::redraw(){
42 ((Gtk::Widget*) this)->queue_draw();
43 }
45 bool SvgFontDrawingArea::on_expose_event (GdkEventExpose *event){
46 if (this->svgfont){
47 Glib::RefPtr<Gdk::Window> window = get_window();
48 Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
49 cr->set_font_face( Cairo::RefPtr<Cairo::FontFace>(new Cairo::FontFace(this->svgfont->get_font_face(), false /* does not have reference */)) );
50 cr->set_font_size (this->y-20);
51 cr->move_to (10, 10);
52 cr->show_text (this->text.c_str());
53 }
54 return TRUE;
55 }
57 namespace Inkscape {
58 namespace UI {
59 namespace Dialog {
61 /*** SvgFontsDialog ***/
63 GlyphComboBox::GlyphComboBox(){
64 }
66 void GlyphComboBox::update(SPFont* spfont){
67 if (spfont) {
68 this->clear();
69 for(SPObject* node = spfont->children; node; node=node->next){
70 if (SP_IS_GLYPH(node)){
71 this->append_text(((SPGlyph*)node)->unicode);
72 }
73 }
74 }
75 }
77 void SvgFontsDialog::on_kerning_changed(){
78 if (this->kerning_pair){
79 this->kerning_pair->k = kerning_spin.get_value();
80 kerning_preview.redraw();
81 _font_da.redraw();
82 }
83 }
85 void SvgFontsDialog::on_glyphs_changed(){
86 std::string str1(first_glyph.get_active_text());
87 std::string str2(second_glyph.get_active_text());
88 kerning_preview.set_text((gchar*) (str1+str2).c_str());
89 kerning_preview.redraw();
92 //look for this kerning pair on the currently selected font
93 this->kerning_pair = NULL;
94 for(SPObject* node = this->get_selected_spfont()->children; node; node=node->next){
95 if (SP_IS_HKERN(node) && ((SPGlyphKerning*)node)->u1->contains((gchar) first_glyph.get_active_text().c_str()[0])
96 && ((SPGlyphKerning*)node)->u2->contains((gchar) second_glyph.get_active_text().c_str()[0]) ){
97 this->kerning_pair = (SPGlyphKerning*)node;
98 continue;
99 }
100 }
102 //TODO:
103 //if not found,
104 //create new kern node
105 if (this->kerning_pair)
106 kerning_spin.set_value(this->kerning_pair->k);
107 }
109 /* Add all fonts in the document to the combobox. */
110 void SvgFontsDialog::update_fonts()
111 {
112 SPDesktop* desktop = this->getDesktop();
113 SPDocument* document = sp_desktop_document(desktop);
114 const GSList* fonts = sp_document_get_resource_list(document, "font");
116 _model->clear();
117 for(const GSList *l = fonts; l; l = l->next) {
118 Gtk::TreeModel::Row row = *_model->append();
119 SPFont* f = (SPFont*)l->data;
120 row[_columns.spfont] = f;
121 row[_columns.svgfont] = new SvgFont(f);
122 const gchar* lbl = f->label();
123 const gchar* id = SP_OBJECT_ID(f);
124 row[_columns.label] = lbl ? lbl : (id ? id : "font");
125 }
126 }
128 void SvgFontsDialog::on_preview_text_changed(){
129 _font_da.set_text((gchar*) _preview_entry.get_text().c_str());
130 _font_da.set_text(_preview_entry.get_text());
131 _font_da.redraw();
132 }
134 void SvgFontsDialog::on_font_selection_changed(){
135 SPFont* spfont = this->get_selected_spfont();
136 SvgFont* svgfont = this->get_selected_svgfont();
137 first_glyph.update(spfont);
138 second_glyph.update(spfont);
139 kerning_preview.set_svgfont(svgfont);
140 _font_da.set_svgfont(svgfont);
141 _font_da.redraw();
143 int steps = 50;
144 double set_width = spfont->horiz_adv_x;
145 setwidth_spin.set_value(set_width);
147 kerning_spin.set_range(0,set_width);
148 kerning_spin.set_increments(int(set_width/steps),2*int(set_width/steps));
149 kerning_spin.set_value(0);
150 }
152 void SvgFontsDialog::on_setwidth_changed(){
153 SPFont* spfont = this->get_selected_spfont();
154 if (spfont){
155 spfont->horiz_adv_x = setwidth_spin.get_value();
156 //TODO: tell cairo that the glyphs cache has to be invalidated
157 }
158 }
160 SvgFont* SvgFontsDialog::get_selected_svgfont()
161 {
162 Gtk::TreeModel::iterator i = _font_list.get_selection()->get_selected();
163 if(i)
164 return (*i)[_columns.svgfont];
165 return NULL;
166 }
168 SPFont* SvgFontsDialog::get_selected_spfont()
169 {
170 Gtk::TreeModel::iterator i = _font_list.get_selection()->get_selected();
171 if(i)
172 return (*i)[_columns.spfont];
173 return NULL;
174 }
176 SvgFontsDialog::SvgFontsDialog()
177 : UI::Widget::Panel("", "dialogs.svgfonts", SP_VERB_DIALOG_SVG_FONTS)
178 {
179 Gtk::HBox* hbox = Gtk::manage(new Gtk::HBox());
180 hbox->add(_font_list);
181 hbox->add(_font_settings);
182 _getContents()->add(*hbox);
184 //List of SVGFonts declared in a document:
185 _model = Gtk::ListStore::create(_columns);
186 _font_list.set_model(_model);
187 _font_list.append_column_editable(_("_Font"), _columns.label);
188 _font_list.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_font_selection_changed));
190 this->update_fonts();
192 //kerning setup:
193 Gtk::VBox* kernvbox = Gtk::manage(new Gtk::VBox());
194 _font_settings.add(*kernvbox);
196 //Set Width (horiz_adv_x):
197 Gtk::HBox* setwidth_hbox = Gtk::manage(new Gtk::HBox());
198 setwidth_hbox->add(*Gtk::manage(new Gtk::Label(_("Set width (not working yet):"))));
199 setwidth_hbox->add(setwidth_spin);
201 setwidth_spin.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_setwidth_changed));
202 setwidth_spin.set_range(0, 4096);
203 setwidth_spin.set_increments(10, 100);
204 _font_settings.add(*setwidth_hbox);
206 //Kerning Setup:
207 kernvbox->add(*Gtk::manage(new Gtk::Label(_("Kerning Setup:"))));
208 Gtk::HBox* kerning_selector = Gtk::manage(new Gtk::HBox());
209 kerning_selector->add(*Gtk::manage(new Gtk::Label(_("1st Glyph:"))));
210 kerning_selector->add(first_glyph);
211 kerning_selector->add(*Gtk::manage(new Gtk::Label(_("2nd Glyph:"))));
212 kerning_selector->add(second_glyph);
213 first_glyph.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_glyphs_changed));
214 second_glyph.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_glyphs_changed));
215 kerning_spin.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_kerning_changed));
217 kernvbox->add(*kerning_selector);
218 kernvbox->add((Gtk::Widget&) kerning_preview);
220 Gtk::HBox* kerning_amount_hbox = Gtk::manage(new Gtk::HBox());
221 kernvbox->add(*kerning_amount_hbox);
222 kerning_amount_hbox->add(*Gtk::manage(new Gtk::Label(_("Kerning value:"))));
223 kerning_amount_hbox->add(kerning_spin);
225 kerning_preview.set_size(300 + 20, 150 + 20);
226 _font_da.set_size(150 + 20, 50 + 20);
228 //Text Preview:
229 _preview_entry.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_preview_text_changed));
230 _getContents()->add((Gtk::Widget&) _font_da);
231 _preview_entry.set_text("Sample Text");
232 _font_da.set_text("Sample Text");
234 Gtk::HBox* preview_entry_hbox = Gtk::manage(new Gtk::HBox());
235 _getContents()->add(*preview_entry_hbox);
236 preview_entry_hbox->add(*Gtk::manage(new Gtk::Label(_("Preview Text:"))));
237 preview_entry_hbox->add(_preview_entry);
239 _getContents()->show_all();
240 }
242 SvgFontsDialog::~SvgFontsDialog(){}
244 } // namespace Dialog
245 } // namespace UI
246 } // namespace Inkscape
248 #endif //#ifdef ENABLE_SVG_FONTS