From 75a16eae9eb2714f8112d46fa5b8f7908b6d2487 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 28 Feb 2010 10:32:54 +0000
Subject: [PATCH] Add Widget::focusable flag Propagate focus requests through
 Panels Add getters for input focus

---
 source/indicator.cpp |  1 +
 source/label.cpp     |  1 +
 source/panel.cpp     | 19 +++++++++++++++++--
 source/panel.h       |  2 ++
 source/table.cpp     |  1 +
 source/widget.cpp    |  6 ++++++
 source/widget.h      |  3 +++
 7 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/source/indicator.cpp b/source/indicator.cpp
index 2debf35..7f4ac4b 100644
--- a/source/indicator.cpp
+++ b/source/indicator.cpp
@@ -13,6 +13,7 @@ namespace GLtk {
 Indicator::Indicator(const Resources &r):
 	Widget(r)
 {
+	focusable=false;
 	update_style();
 }
 
diff --git a/source/label.cpp b/source/label.cpp
index ae821a8..2353385 100644
--- a/source/label.cpp
+++ b/source/label.cpp
@@ -18,6 +18,7 @@ Label::Label(const Resources &r, const string &t):
 	Widget(r),
 	text(style)
 {
+	focusable=false;
 	update_style();
 	set_text(t);
 }
diff --git a/source/panel.cpp b/source/panel.cpp
index 14e9b6e..4d7e1a9 100644
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -47,6 +47,17 @@ void Panel::raise(Widget &wdg)
 	throw InvalidState("That Widget is not in this Panel");
 }
 
+Widget *Panel::get_final_input_focus() const
+{
+	if(Panel *panel=dynamic_cast<Panel *>(input_focus))
+	{
+		Widget *focus=panel->get_final_input_focus();
+		if(focus)
+			return focus;
+	}
+	return input_focus;
+}
+
 void Panel::button_press(int x, int y, unsigned btn)
 {
 	if(pointer_grabbed)
@@ -59,7 +70,8 @@ void Panel::button_press(int x, int y, unsigned btn)
 		if(Widget *wdg=get_child_at(x, y))
 		{
 			set_pointer_focus(wdg);
-			set_input_focus(wdg);
+			if(wdg->is_focusable())
+				set_input_focus(wdg);
 		}
 		Container::button_press(x, y, btn);
 	}
@@ -224,7 +236,10 @@ void Panel::Child::visibility_changed(bool v)
 
 void Panel::Child::request_focus()
 {
-	static_cast<Panel &>(container).set_input_focus(widget);
+	Panel &panel=static_cast<Panel &>(container);
+	panel.set_input_focus(widget);
+	if(panel.parent && panel.visible)
+		panel.set_focus();
 }
 
 void Panel::Child::grab_pointer()
diff --git a/source/panel.h b/source/panel.h
index 8a5d128..1082447 100644
--- a/source/panel.h
+++ b/source/panel.h
@@ -58,6 +58,8 @@ public:
 	Panel(const Resources &);
 
 	void raise(Widget &);
+	Widget *get_input_focus() const { return input_focus; }
+	Widget *get_final_input_focus() const;
 
 	virtual void button_press(int, int, unsigned);
 	virtual void button_release(int, int, unsigned);
diff --git a/source/table.cpp b/source/table.cpp
index 7f334a0..7f0ae79 100644
--- a/source/table.cpp
+++ b/source/table.cpp
@@ -23,6 +23,7 @@ Table::Table(const Resources &r):
 	data(1),
 	col_w(1)
 {
+	focusable=false;
 	update_style();
 }
 
diff --git a/source/widget.cpp b/source/widget.cpp
index 8c59c07..04c272a 100644
--- a/source/widget.cpp
+++ b/source/widget.cpp
@@ -23,6 +23,7 @@ Widget::Widget(const Resources &r):
 	style(0),
 	state(NORMAL),
 	visible(true),
+	focusable(true),
 	parent(0)
 { }
 
@@ -73,6 +74,11 @@ void Widget::set_visible(bool v)
 	signal_visibility_changed.emit(visible);
 }
 
+void Widget::set_focusable(bool f)
+{
+	focusable=f;
+}
+
 void Widget::set_focus()
 {
 	if(!parent)
diff --git a/source/widget.h b/source/widget.h
index 69adf9c..2fdc68c 100644
--- a/source/widget.h
+++ b/source/widget.h
@@ -53,6 +53,7 @@ protected:
 	const Style *style;
 	State state;
 	bool visible;
+	bool focusable;
 	Container *parent;
 	std::string tooltip;
 
@@ -78,6 +79,8 @@ public:
 
 	void set_visible(bool);
 	bool is_visible() const { return visible; }
+	void set_focusable(bool);
+	bool is_focusable() const { return focusable; }
 	void set_focus();
 
 	void render() const;
-- 
2.43.0