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/**
* \brief SVG Fonts dialog
*
* Authors:
* Felipe C. da S. Sanches <felipe.sanches@gmail.com>
*
* Copyright (C) 2008 Authors
*
* Released under GNU GPLv2 (or later). Read the file 'COPYING' for more information.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef ENABLE_SVG_FONTS
#include "svg-fonts-dialog.h"
#include <glibmm/i18n.h>
#include <string.h>
SvgFontDrawingArea::SvgFontDrawingArea(){
this->text = "";
this->svgfont = NULL;
}
void SvgFontDrawingArea::set_svgfont(SvgFont* svgfont){
this->svgfont = svgfont;
}
void SvgFontDrawingArea::set_text(Glib::ustring text){
this->text = text;
}
void SvgFontDrawingArea::set_size(int x, int y){
this->x = x;
this->y = y;
((Gtk::Widget*) this)->set_size_request(x, y);
}
void SvgFontDrawingArea::redraw(){
((Gtk::Widget*) this)->queue_draw();
}
bool SvgFontDrawingArea::on_expose_event (GdkEventExpose *event){
if (this->svgfont){
Glib::RefPtr<Gdk::Window> window = get_window();
Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();
cr->set_font_face( Cairo::RefPtr<Cairo::FontFace>(new Cairo::FontFace(this->svgfont->get_font_face(), false /* does not have reference */)) );
cr->set_font_size (this->y-20);
cr->move_to (10, 10);
cr->show_text (this->text.c_str());
}
return TRUE;
}
namespace Inkscape {
namespace UI {
namespace Dialog {
/*** SvgFontsDialog ***/
GlyphComboBox::GlyphComboBox(){
}
void GlyphComboBox::update(SPFont* spfont){
if (spfont) {
this->clear();
for(SPObject* node = spfont->children; node; node=node->next){
if (SP_IS_GLYPH(node)){
this->append_text(((SPGlyph*)node)->unicode);
}
}
}
}
void SvgFontsDialog::on_kerning_changed(){
if (this->kerning_pair){
this->kerning_pair->k = kerning_spin.get_value();
kerning_preview.redraw();
_font_da.redraw();
}
}
void SvgFontsDialog::on_glyphs_changed(){
std::string str1(first_glyph.get_active_text());
std::string str2(second_glyph.get_active_text());
kerning_preview.set_text((gchar*) (str1+str2).c_str());
kerning_preview.redraw();
//look for this kerning pair on the currently selected font
this->kerning_pair = NULL;
for(SPObject* node = this->get_selected_spfont()->children; node; node=node->next){
if (SP_IS_HKERN(node) && ((SPGlyphKerning*)node)->u1->contains((gchar) first_glyph.get_active_text().c_str()[0])
&& ((SPGlyphKerning*)node)->u2->contains((gchar) second_glyph.get_active_text().c_str()[0]) ){
this->kerning_pair = (SPGlyphKerning*)node;
continue;
}
}
//TODO:
//if not found,
//create new kern node
if (this->kerning_pair)
kerning_spin.set_value(this->kerning_pair->k);
}
/* Add all fonts in the document to the combobox. */
void SvgFontsDialog::update_fonts()
{
SPDesktop* desktop = this->getDesktop();
SPDocument* document = sp_desktop_document(desktop);
const GSList* fonts = sp_document_get_resource_list(document, "font");
_model->clear();
for(const GSList *l = fonts; l; l = l->next) {
Gtk::TreeModel::Row row = *_model->append();
SPFont* f = (SPFont*)l->data;
row[_columns.spfont] = f;
row[_columns.svgfont] = new SvgFont(f);
const gchar* lbl = f->label();
const gchar* id = SP_OBJECT_ID(f);
row[_columns.label] = lbl ? lbl : (id ? id : "font");
}
}
void SvgFontsDialog::on_preview_text_changed(){
_font_da.set_text((gchar*) _preview_entry.get_text().c_str());
_font_da.set_text(_preview_entry.get_text());
_font_da.redraw();
}
void SvgFontsDialog::on_font_selection_changed(){
SPFont* spfont = this->get_selected_spfont();
SvgFont* svgfont = this->get_selected_svgfont();
first_glyph.update(spfont);
second_glyph.update(spfont);
kerning_preview.set_svgfont(svgfont);
_font_da.set_svgfont(svgfont);
_font_da.redraw();
int steps = 50;
double set_width = spfont->horiz_adv_x;
setwidth_spin.set_value(set_width);
kerning_spin.set_range(0,set_width);
kerning_spin.set_increments(int(set_width/steps),2*int(set_width/steps));
kerning_spin.set_value(0);
}
void SvgFontsDialog::on_setwidth_changed(){
SPFont* spfont = this->get_selected_spfont();
if (spfont){
spfont->horiz_adv_x = setwidth_spin.get_value();
//TODO: tell cairo that the glyphs cache has to be invalidated
}
}
SvgFont* SvgFontsDialog::get_selected_svgfont()
{
Gtk::TreeModel::iterator i = _font_list.get_selection()->get_selected();
if(i)
return (*i)[_columns.svgfont];
return NULL;
}
SPFont* SvgFontsDialog::get_selected_spfont()
{
Gtk::TreeModel::iterator i = _font_list.get_selection()->get_selected();
if(i)
return (*i)[_columns.spfont];
return NULL;
}
SvgFontsDialog::SvgFontsDialog()
: UI::Widget::Panel("", "dialogs.svgfonts", SP_VERB_DIALOG_SVG_FONTS)
{
Gtk::HBox* hbox = Gtk::manage(new Gtk::HBox());
hbox->add(_font_list);
hbox->add(_font_settings);
_getContents()->add(*hbox);
//List of SVGFonts declared in a document:
_model = Gtk::ListStore::create(_columns);
_font_list.set_model(_model);
_font_list.append_column_editable(_("_Font"), _columns.label);
_font_list.get_selection()->signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_font_selection_changed));
this->update_fonts();
//kerning setup:
Gtk::VBox* kernvbox = Gtk::manage(new Gtk::VBox());
_font_settings.add(*kernvbox);
//Set Width (horiz_adv_x):
Gtk::HBox* setwidth_hbox = Gtk::manage(new Gtk::HBox());
setwidth_hbox->add(*Gtk::manage(new Gtk::Label(_("Set width (not working yet):"))));
setwidth_hbox->add(setwidth_spin);
setwidth_spin.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_setwidth_changed));
setwidth_spin.set_range(0, 4096);
setwidth_spin.set_increments(10, 100);
_font_settings.add(*setwidth_hbox);
//Kerning Setup:
kernvbox->add(*Gtk::manage(new Gtk::Label(_("Kerning Setup:"))));
Gtk::HBox* kerning_selector = Gtk::manage(new Gtk::HBox());
kerning_selector->add(*Gtk::manage(new Gtk::Label(_("1st Glyph:"))));
kerning_selector->add(first_glyph);
kerning_selector->add(*Gtk::manage(new Gtk::Label(_("2nd Glyph:"))));
kerning_selector->add(second_glyph);
first_glyph.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_glyphs_changed));
second_glyph.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_glyphs_changed));
kerning_spin.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_kerning_changed));
kernvbox->add(*kerning_selector);
kernvbox->add((Gtk::Widget&) kerning_preview);
Gtk::HBox* kerning_amount_hbox = Gtk::manage(new Gtk::HBox());
kernvbox->add(*kerning_amount_hbox);
kerning_amount_hbox->add(*Gtk::manage(new Gtk::Label(_("Kerning value:"))));
kerning_amount_hbox->add(kerning_spin);
kerning_preview.set_size(300 + 20, 150 + 20);
_font_da.set_size(150 + 20, 50 + 20);
//Text Preview:
_preview_entry.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_preview_text_changed));
_getContents()->add((Gtk::Widget&) _font_da);
_preview_entry.set_text("Sample Text");
_font_da.set_text("Sample Text");
Gtk::HBox* preview_entry_hbox = Gtk::manage(new Gtk::HBox());
_getContents()->add(*preview_entry_hbox);
preview_entry_hbox->add(*Gtk::manage(new Gtk::Label(_("Preview Text:"))));
preview_entry_hbox->add(_preview_entry);
_getContents()->show_all();
}
SvgFontsDialog::~SvgFontsDialog(){}
} // namespace Dialog
} // namespace UI
} // namespace Inkscape
#endif //#ifdef ENABLE_SVG_FONTS
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