From a87d05583cb7dffaf0e0f5eb9f9b2fc0bcf656e1 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 12 Apr 2010 20:49:41 +0000
Subject: [PATCH] Update text information when widget style changes

---
 source/button.cpp | 5 +++++
 source/button.h   | 2 ++
 source/entry.cpp  | 5 +++++
 source/entry.h    | 2 ++
 source/label.cpp  | 5 +++++
 source/label.h    | 2 ++
 source/text.cpp   | 7 +++++++
 source/text.h     | 2 ++
 source/toggle.cpp | 5 +++++
 source/toggle.h   | 2 ++
 10 files changed, 37 insertions(+)

diff --git a/source/button.cpp b/source/button.cpp
index 91cc88c..292625d 100644
--- a/source/button.cpp
+++ b/source/button.cpp
@@ -92,6 +92,11 @@ void Button::render_special(const Part &part) const
 	}
 }
 
+void Button::on_style_change()
+{
+	text.update_style();
+}
+
 
 Button::Loader::Loader(Button &btn):
 	Widget::Loader(btn)
diff --git a/source/button.h b/source/button.h
index 31d87e1..687f5dd 100644
--- a/source/button.h
+++ b/source/button.h
@@ -48,6 +48,8 @@ public:
 private:
 	virtual const char *get_class() const { return "button"; }
 	virtual void render_special(const Part &) const;
+
+	virtual void on_style_change();
 };
 
 } // namespace GLtk
diff --git a/source/entry.cpp b/source/entry.cpp
index f503721..496a79d 100644
--- a/source/entry.cpp
+++ b/source/entry.cpp
@@ -84,6 +84,11 @@ void Entry::render_special(const Part &part) const
 	}
 }
 
+void Entry::on_style_change()
+{
+	text.update_style();
+}
+
 
 Entry::Loader::Loader(Entry &ent):
 	Widget::Loader(ent)
diff --git a/source/entry.h b/source/entry.h
index b8bae56..7355067 100644
--- a/source/entry.h
+++ b/source/entry.h
@@ -47,6 +47,8 @@ public:
 private:
 	virtual const char *get_class() const { return "entry"; }
 	virtual void render_special(const Part &) const;
+
+	virtual void on_style_change();
 };
 
 } // namespace GLtk
diff --git a/source/label.cpp b/source/label.cpp
index 2353385..18bef1a 100644
--- a/source/label.cpp
+++ b/source/label.cpp
@@ -52,6 +52,11 @@ void Label::render_special(const Part &part) const
 		text.render(part, geom);
 }
 
+void Label::on_style_change()
+{
+	text.update_style();
+}
+
 
 Label::Loader::Loader(Label &l):
 	Widget::Loader(l)
diff --git a/source/label.h b/source/label.h
index f492006..f157616 100644
--- a/source/label.h
+++ b/source/label.h
@@ -40,6 +40,8 @@ public:
 private:
 	virtual const char *get_class() const { return "label"; }
 	virtual void render_special(const Part &) const;
+
+	virtual void on_style_change();
 };
 
 } // namespace GLtk
diff --git a/source/text.cpp b/source/text.cpp
index e33eb80..d48c33f 100644
--- a/source/text.cpp
+++ b/source/text.cpp
@@ -77,6 +77,13 @@ void Text::insert(unsigned pos, const string &s)
 	}
 }
 
+void Text::update_style()
+{
+	float font_size=style->get_font()->get_default_size();
+	for(vector<Line>::iterator i=lines.begin(); i!=lines.end(); ++i)
+		i->width=static_cast<unsigned>(style->get_font()->get_string_width(text.substr(i->start, i->length))*font_size);
+}
+
 void Text::render(const Part &part, const Geometry &geom) const
 {
 	if(lines.empty())
diff --git a/source/text.h b/source/text.h
index 5daeb9b..7be1192 100644
--- a/source/text.h
+++ b/source/text.h
@@ -41,6 +41,8 @@ public:
 	const std::string &get() const { return text; }
 	unsigned size() const { return text.size(); }
 
+	void update_style();
+
 	void render(const Part &, const Geometry &) const;
 
 	Text &operator=(const std::string &);
diff --git a/source/toggle.cpp b/source/toggle.cpp
index 550d97a..62f46eb 100644
--- a/source/toggle.cpp
+++ b/source/toggle.cpp
@@ -85,6 +85,11 @@ void Toggle::exclude_siblings()
 				tgl->set_value(false);
 }
 
+void Toggle::on_style_change()
+{
+	text.update_style();
+}
+
 
 Toggle::Loader::Loader(Toggle &t):
 	Widget::Loader(t)
diff --git a/source/toggle.h b/source/toggle.h
index f9a32fe..da129be 100644
--- a/source/toggle.h
+++ b/source/toggle.h
@@ -55,6 +55,8 @@ private:
 	virtual void render_special(const Part &) const;
 
 	void exclude_siblings();
+
+	virtual void on_style_change();
 };
 
 } // namespace GLtk
-- 
2.43.0