keep a buffer dirty flag and display infos about the current buffer in the interfaces (including the dirty flag)

 * was a bit tricky because the Scintilla SAVEPOINTS cannot be (fully) used
 * when a file is loaded or saved, a Scintilla SAVEPOINT is set
 * SAVEPOINTLEFT notifications are used to set a buffer dirty
 * SAVEPOINTREACHED notifications are useless since Scintilla does not consider the saves themselves to be undoable
 * GTK interface displays infos in window title bar
 * NCURSES interface has also been updated and cleaned up a bit. Infos are displayed in a new info line.
 * NCURSES: fixed popup display after terminal resizing

1 files changed, 9 insertions, 1 deletions

diff --git a/qbuffers.h b/qbuffers.h
index 61aab64..8ceaffa 100644
--- a/qbuffers.h
+++ b/qbuffers.h
@@ -71,10 +71,12 @@ public:
 	{
 		interface.ssm(SCI_SETDOCPOINTER, 0, (sptr_t)get_document());
 		interface.ssm(SCI_GOTOPOS, dot);
+		interface.info_update(this);
 	}
 	inline void
 	undo_edit(void)
 	{
+		interface.undo_info_update(this);
 		undo.push_msg(SCI_GOTOPOS, dot);
 		undo.push_msg(SCI_SETDOCPOINTER, 0, (sptr_t)get_document());
 	}
@@ -157,12 +159,15 @@ public:
 
 	gint savepoint_id;
 
+	/* set by Interfaces using Scintilla notifications */
+	bool dirty;
+
 private:
 	typedef void document;
 	document *doc;
 
 public:
-	Buffer() : filename(NULL), dot(0), savepoint_id(0)
+	Buffer() : filename(NULL), dot(0), savepoint_id(0), dirty(false)
 	{
 		doc = (document *)interface.ssm(SCI_CREATEDOCUMENT);
 	}
@@ -184,6 +189,7 @@ public:
 		gchar *resolved = get_absolute_path(filename);
 		g_free(Buffer::filename);
 		Buffer::filename = resolved;
+		interface.info_update(this);
 	}
 
 	inline void
@@ -191,10 +197,12 @@ public:
 	{
 		interface.ssm(SCI_SETDOCPOINTER, 0, (sptr_t)doc);
 		interface.ssm(SCI_GOTOPOS, dot);
+		interface.info_update(this);
 	}
 	inline void
 	undo_edit(void)
 	{
+		interface.undo_info_update(this);
 		undo.push_msg(SCI_GOTOPOS, dot);
 		undo.push_msg(SCI_SETDOCPOINTER, 0, (sptr_t)doc);
 	}