From 1210afd6bcef4b0705235923ff2f5dd48d328b3b Mon Sep 17 00:00:00 2001
From: JucaBlues <JucaBlues@users.sourceforge.net>
Date: Sat, 12 Jul 2008 12:28:57 +0000
Subject: [PATCH] now one can visually adjust glyph kerning. (still doesn save
 that info in the file, though)

---
 src/ui/dialog/svg-fonts-dialog.cpp | 28 ++++++++++++++++++++++++++--
 src/ui/dialog/svg-fonts-dialog.h   |  3 +++
 2 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/src/ui/dialog/svg-fonts-dialog.cpp b/src/ui/dialog/svg-fonts-dialog.cpp
index d28085367..7df7e3b89 100644
--- a/src/ui/dialog/svg-fonts-dialog.cpp
+++ b/src/ui/dialog/svg-fonts-dialog.cpp
@@ -68,11 +68,33 @@ void GlyphComboBox::update(SPFont* spfont){
     }
 }
 
+void SvgFontsDialog::on_kerning_changed(){
+    //set kerning value = spin.value()
+    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
 }
 
 /* Add all fonts in the document to the combobox. */
@@ -147,13 +169,15 @@ SvgFontsDialog::SvgFontsDialog()
     Gtk::HBox* kerning_selector = Gtk::manage(new Gtk::HBox());
     kerning_selector->add(first_glyph);
     kerning_selector->add(second_glyph);
+    kerning_spin.set_range(0,1000);
+    kerning_spin.set_increments(10,20);
     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));
 
-    Gtk::SpinButton* kerning_spin = Gtk::manage(new Gtk::SpinButton());
     kernvbox->add(*kerning_selector);
     kernvbox->add((Gtk::Widget&) kerning_preview);
-    kernvbox->add(*kerning_spin);
+    kernvbox->add(kerning_spin);
 
 //Text Preview:
     _preview_entry.signal_changed().connect(sigc::mem_fun(*this, &SvgFontsDialog::on_preview_text_changed));
diff --git a/src/ui/dialog/svg-fonts-dialog.h b/src/ui/dialog/svg-fonts-dialog.h
index 09378130c..837fc0478 100644
--- a/src/ui/dialog/svg-fonts-dialog.h
+++ b/src/ui/dialog/svg-fonts-dialog.h
@@ -65,6 +65,7 @@ public:
     void on_font_selection_changed();
     void on_preview_text_changed();
     void on_glyphs_changed();
+    void on_kerning_changed();
 private:
     class Columns : public Gtk::TreeModel::ColumnRecord
         {
@@ -87,6 +88,8 @@ private:
     Gtk::Entry _preview_entry;
     SvgFontDrawingArea _font_da, kerning_preview;
     GlyphComboBox first_glyph, second_glyph;
+    SPGlyphKerning* kerning_pair;
+    Gtk::SpinButton kerning_spin;
 
     class EntryWidget : public Gtk::HBox
         {
-- 
2.30.2