From 48fd4db84c4d0b43305d85f74de99eb4fef04fd6 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 26 Dec 2007 14:21:05 +0000
Subject: [PATCH] Add Toggle widget Only process events in Root if visible

---
 source/panel.cpp  | 16 ++++++-----
 source/root.cpp   | 37 ++++++++++++++++++++------
 source/toggle.cpp | 68 +++++++++++++++++++++++++++++++++++++++++++++++
 source/toggle.h   | 52 ++++++++++++++++++++++++++++++++++++
 source/widget.cpp |  3 ++-
 5 files changed, 160 insertions(+), 16 deletions(-)
 create mode 100644 source/toggle.cpp
 create mode 100644 source/toggle.h

diff --git a/source/panel.cpp b/source/panel.cpp
index 9373ff2..22ccb1b 100644
--- a/source/panel.cpp
+++ b/source/panel.cpp
@@ -14,6 +14,7 @@ Distributed under the LGPL
 #include "list.h"
 #include "panel.h"
 #include "part.h"
+#include "toggle.h"
 #include "vslider.h"
 
 using namespace std;
@@ -197,14 +198,15 @@ Panel::Loader::Loader(Panel &p, map<string, Widget *> &m):
 	pnl(p),
 	wdg_map(m)
 {
-	add("button", &Loader::child<Button>);
-	add("entry",  &Loader::child<Entry>);
-	add("hslider", &Loader::child<HSlider>);
+	add("button",    &Loader::child<Button>);
+	add("entry",     &Loader::child<Entry>);
+	add("hslider",   &Loader::child<HSlider>);
 	add("indicator", &Loader::child<Indicator>);
-	add("label",  &Loader::child<Label>);
-	add("list",   &Loader::child<List>);
-	add("panel",  &Loader::panel);
-	add("vslider", &Loader::child<VSlider>);
+	add("label",     &Loader::child<Label>);
+	add("list",      &Loader::child<List>);
+	add("panel",     &Loader::panel);
+	add("toggle",    &Loader::child<Toggle>);
+	add("vslider",   &Loader::child<VSlider>);
 }
 
 template<typename T>
diff --git a/source/root.cpp b/source/root.cpp
index bb3913c..224e5bc 100644
--- a/source/root.cpp
+++ b/source/root.cpp
@@ -21,26 +21,47 @@ Root::Root(Resources &r, Graphics::Window &w):
 	window.signal_button_press.connect(sigc::mem_fun(this, &Root::button_press_event));
 	window.signal_button_release.connect(sigc::mem_fun(this, &Root::button_release_event));
 	window.signal_pointer_motion.connect(sigc::mem_fun(this, &Root::pointer_motion_event));
-	window.signal_key_press.connect(sigc::mem_fun(this, &Root::key_press));
-	window.signal_key_release.connect(sigc::mem_fun(this, &Root::key_release));
+	window.signal_key_press.connect(sigc::mem_fun(this, &Root::key_press_event));
+	window.signal_key_release.connect(sigc::mem_fun(this, &Root::key_release_event));
 }
 
 void Root::button_press_event(int x, int y, unsigned btn, unsigned)
 {
-	translate_coords(x, y);
-	button_press(x, y, btn);
+	if(visible)
+	{
+		translate_coords(x, y);
+		button_press(x, y, btn);
+	}
 }
 
 void Root::button_release_event(int x, int y, unsigned btn, unsigned)
 {
-	translate_coords(x, y);
-	button_release(x, y, btn);
+	if(visible)
+	{
+		translate_coords(x, y);
+		button_release(x, y, btn);
+	}
 }
 
 void Root::pointer_motion_event(int x, int y)
 {
-	translate_coords(x, y);
-	pointer_motion(x, y);
+	if(visible)
+	{
+		translate_coords(x, y);
+		pointer_motion(x, y);
+	}
+}
+
+void Root::key_press_event(unsigned key, unsigned mod, wchar_t ch)
+{
+	if(visible)
+		key_press(key, mod, ch);
+}
+
+void Root::key_release_event(unsigned key, unsigned mod)
+{
+	if(visible)
+		key_release(key, mod);
 }
 
 void Root::translate_coords(int &x, int &y)
diff --git a/source/toggle.cpp b/source/toggle.cpp
new file mode 100644
index 0000000..2e3488a
--- /dev/null
+++ b/source/toggle.cpp
@@ -0,0 +1,68 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#include "part.h"
+#include "toggle.h"
+
+namespace Msp {
+namespace GLtk {
+
+Toggle::Toggle(const Resources &r):
+	Widget(r),
+	value(false)
+{
+	update_style();
+}
+
+void Toggle::button_release(int x, int y, unsigned btn)
+{
+	if(btn==1)
+	{
+		if(geom.is_inside_relative(x, y))
+		{
+			value=!value;
+			state=(value ? ACTIVE : HOVER);
+			signal_toggled.emit(value);
+		}
+		else
+			state=NORMAL;
+	}
+}
+
+void Toggle::pointer_enter()
+{
+	if(!value)
+		state=HOVER;
+}
+
+void Toggle::pointer_leave()
+{
+	if(!value)
+		state=NORMAL;
+}
+
+void Toggle::render_special(const Part &part) const
+{
+	if(part.get_name()=="text")
+		render_text(part, text);
+}
+
+
+Toggle::Loader::Loader(Toggle &t):
+	Widget::Loader(t)
+{
+	add("text",  &Toggle::text);
+	add("value", &Toggle::value);
+}
+
+Toggle &Toggle::Loader::get_object() const
+{
+	return static_cast<Toggle &>(wdg);
+}
+
+} // namespace GLtk
+} // namespace Msp
diff --git a/source/toggle.h b/source/toggle.h
new file mode 100644
index 0000000..305c3ca
--- /dev/null
+++ b/source/toggle.h
@@ -0,0 +1,52 @@
+/* $Id$
+
+This file is part of libmspgltk
+Copyright © 2007  Mikko Rasa, Mikkosoft Productions
+Distributed under the LGPL
+*/
+
+#ifndef MSP_GLTK_TOGGLE_H_
+#define MSP_GLTK_TOGGLE_H_
+
+#include <sigc++/signal.h>
+#include "widget.h"
+
+namespace Msp {
+namespace GLtk {
+
+/**
+Allows toggling a value between two states.
+*/
+class Toggle: public Widget
+{
+public:
+	class Loader: public Widget::Loader
+	{
+	public:
+		Loader(Toggle &);
+		Toggle &get_object() const;
+	};
+
+private:
+	std::string text;
+	bool value;
+
+public:
+	sigc::signal<void, bool> signal_toggled;
+
+	Toggle(const Resources &);
+
+	bool get_value() const { return value; }
+
+	virtual void button_release(int, int, unsigned);
+	virtual void pointer_enter();
+	virtual void pointer_leave();
+private:
+	virtual const char *get_class() const { return "toggle"; }
+	virtual void render_special(const Part &) const;
+};
+
+} // namespace GLtk
+} // namespace Msp
+
+#endif
diff --git a/source/widget.cpp b/source/widget.cpp
index 7d608f2..0128367 100644
--- a/source/widget.cpp
+++ b/source/widget.cpp
@@ -7,6 +7,7 @@ Distributed under the LGPL
 
 #include <msp/gl/matrix.h>
 #include <msp/gl/transform.h>
+#include <msp/strings/formatter.h>
 #include "panel.h"
 #include "resources.h"
 #include "widget.h"
@@ -70,7 +71,7 @@ void Widget::set_visible(bool v)
 void Widget::render() const
 {
 	if(!style)
-		throw InvalidState("Attempt to render a widget without a style");
+		throw InvalidState(format("Attempt to render a widget without a style (class=\"%s\")", get_class()));
 
 	GL::push_matrix();
 	GL::translate(geom.x, geom.y, 0);
-- 
2.43.0