X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flayout.h;h=a8ea3bf25b7f819492d14eb34c30a24380ba1f76;hb=c8291177b545ec81930603a5915234a60296db51;hp=85d64ae4d64f4f670365a58fbc921cb7406660a6;hpb=646af3dd91a6ca981572a5b69a0f0bd205d9af49;p=libs%2Fgltk.git

diff --git a/source/layout.h b/source/layout.h
index 85d64ae..a8ea3bf 100644
--- a/source/layout.h
+++ b/source/layout.h
@@ -4,6 +4,7 @@
 #include <list>
 #include <set>
 #include <sigc++/trackable.h>
+#include <msp/strings/lexicalcast.h>
 #include "geometry.h"
 
 namespace Msp {
@@ -85,7 +86,43 @@ public:
 		COPY_HEIGHT = VERTICAL|SELF_DIM|TARGET_DIM
 	};
 
+	class Loader: public DataFile::ObjectLoader<Layout>
+	{
+	public:
+		typedef std::map<std::string, Widget *> WidgetMap;
+
+	private:
+		const WidgetMap &wdg_map;
+
+	public:
+		Loader(Layout &, const WidgetMap &);
+
+	private:
+		void column_spacing(unsigned);
+		void margin();
+		void row_spacing(unsigned);
+		void spacing(unsigned);
+		void widget(const std::string &);
+	};
+
 private:
+	class WidgetLoader: public DataFile::Loader
+	{
+	private:
+		Layout &layout;
+		Widget &widget;
+		const Layout::Loader::WidgetMap &wdg_map;
+
+	public:
+		WidgetLoader(Layout &, Widget &, const Layout::Loader::WidgetMap &);
+
+	private:
+		void constraint(ConstraintType, const std::string &);
+		void expand(bool, bool);
+		void ghost(bool);
+		void gravity(int, int);
+	};
+
 	struct Slot;
 
 	struct Constraint
@@ -115,6 +152,7 @@ private:
 		std::list<Constraint> constraints;
 		Packing horiz_pack;
 		Packing vert_pack;
+		bool ghost;
 
 		Slot(Layout &, Widget &);
 
@@ -184,6 +222,9 @@ public:
 	void set_gravity(Widget &, int, int);
 	void set_expand(Widget &, bool, bool);
 
+	/// Sets a widget as a ghost, taking up space even if it is hidden.
+	void set_ghost(Widget &, bool);
+
 	void update();
 	void autosize();
 
@@ -191,6 +232,8 @@ private:
 	void solve_constraints(int, SolveMode);
 };
 
+void operator>>(const LexicalConverter &, Layout::ConstraintType &);
+
 } // namespace GLtk
 } // namespace Msp