From 9634888bf3e820e2507f866ff03fd1760f6a310f Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Wed, 27 Apr 2016 00:01:13 -0400
Subject: add the concept of a "state mask" that determines what info a
 WindowProxy will save

---
 libs/gtkmm2ext/gtkmm2ext/window_proxy.h |  9 +++++++
 libs/gtkmm2ext/window_proxy.cc          | 44 +++++++++++++++++++++++++++------
 2 files changed, 46 insertions(+), 7 deletions(-)

(limited to 'libs/gtkmm2ext')

diff --git a/libs/gtkmm2ext/gtkmm2ext/window_proxy.h b/libs/gtkmm2ext/gtkmm2ext/window_proxy.h
index c5949701d9..3bb941bccf 100644
--- a/libs/gtkmm2ext/gtkmm2ext/window_proxy.h
+++ b/libs/gtkmm2ext/gtkmm2ext/window_proxy.h
@@ -69,6 +69,14 @@ class LIBGTKMM2EXT_API WindowProxy : public PBD::StatefulDestructible, public vi
 	virtual int set_state (const XMLNode&, int version);
 	virtual XMLNode& get_state ();
 
+	enum StateMask {
+		Position = 0x1,
+		Size = 0x2
+	};
+
+	void set_state_mask (StateMask);
+	StateMask state_mask () const { return _state_mask; }
+
 	operator bool() const { return _window != 0; }
 
 	static std::string xml_node_name();
@@ -84,6 +92,7 @@ class LIBGTKMM2EXT_API WindowProxy : public PBD::StatefulDestructible, public vi
 	mutable int  _width; ///< width
 	mutable int  _height; ///< height
 	Gtkmm2ext::VisibilityTracker* vistracker;
+	StateMask _state_mask;
 
 	void save_pos_and_size ();
 	void set_pos_and_size ();
diff --git a/libs/gtkmm2ext/window_proxy.cc b/libs/gtkmm2ext/window_proxy.cc
index 6ad6a4d86b..d859c730c0 100644
--- a/libs/gtkmm2ext/window_proxy.cc
+++ b/libs/gtkmm2ext/window_proxy.cc
@@ -42,6 +42,7 @@ WindowProxy::WindowProxy (const std::string& name)
 	, _width (-1)
 	, _height (-1)
 	, vistracker (0)
+	, _state_mask (StateMask (Position|Size))
 {
 }
 
@@ -55,6 +56,7 @@ WindowProxy::WindowProxy (const std::string& name, const std::string& menu_name)
 	, _width (-1)
 	, _height (-1)
 	, vistracker (0)
+	, _state_mask (StateMask (Position|Size))
 {
 }
 
@@ -189,14 +191,32 @@ WindowProxy::get_state ()
 		_window->get_size (_width, _height);
 	}
 
+	int x, y, w, h;
+
+	if (_state_mask & Position) {
+		x = _x_off;
+		y = _y_off;
+	} else {
+		x = -1;
+		y = -1;
+	}
+
+	if (_state_mask & Size) {
+		w = _width;
+		h = _height;
+	} else {
+		w = -1;
+		h = -1;
+	}
+
 	node->add_property (X_("visible"), _visible? X_("yes") : X_("no"));
-	snprintf (buf, sizeof (buf), "%d", _x_off);
+	snprintf (buf, sizeof (buf), "%d", x);
 	node->add_property (X_("x-off"), buf);
-	snprintf (buf, sizeof (buf), "%d", _y_off);
+	snprintf (buf, sizeof (buf), "%d", y);
 	node->add_property (X_("y-off"), buf);
-	snprintf (buf, sizeof (buf), "%d", _width);
+	snprintf (buf, sizeof (buf), "%d", w);
 	node->add_property (X_("x-size"), buf);
-	snprintf (buf, sizeof (buf), "%d", _height);
+	snprintf (buf, sizeof (buf), "%d", h);
 	node->add_property (X_("y-size"), buf);
 
 	return *node;
@@ -327,16 +347,16 @@ WindowProxy::set_pos_and_size ()
 		return;
 	}
 
-	if (_width != -1 || _height != -1 || _x_off != -1 || _y_off != -1) {
+	if ((_state_mask & Position) && (_width != -1 || _height != -1 || _x_off != -1 || _y_off != -1)) {
 		/* cancel any mouse-based positioning */
 		_window->set_position (Gtk::WIN_POS_NONE);
 	}
 
-	if (_width != -1 && _height != -1) {
+	if ((_state_mask & Size) && _width != -1 && _height != -1) {
 		_window->resize (_width, _height);
 	}
 
-	if (_x_off != -1 && _y_off != -1) {
+	if ((_state_mask & Position) && _x_off != -1 && _y_off != -1) {
 		_window->move (_x_off, _y_off);
 	}
 }
@@ -348,6 +368,10 @@ WindowProxy::set_pos ()
 		return;
 	}
 
+	if (!(_state_mask & Position)) {
+		return;
+	}
+
 	if (_width != -1 || _height != -1 || _x_off != -1 || _y_off != -1) {
 		/* cancel any mouse-based positioning */
 		_window->set_position (Gtk::WIN_POS_NONE);
@@ -357,3 +381,9 @@ WindowProxy::set_pos ()
 		_window->move (_x_off, _y_off);
 	}
 }
+
+void
+WindowProxy::set_state_mask (StateMask sm)
+{
+	_state_mask = sm;
+}
-- 
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