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, 12 insertions, 3 deletions

diff --git a/qbuffers.cpp b/qbuffers.cpp
index 762566e..51bf65f 100644
--- a/qbuffers.cpp
+++ b/qbuffers.cpp
@@ -173,6 +173,9 @@ Buffer::load(const gchar *filename)
 
 	interface.ssm(SCI_GOTOPOS, 0);
 	interface.ssm(SCI_SETSAVEPOINT);
+	interface.undo_info_update(this);
+	undo.push_var(dirty);
+	dirty = false;
 
 	set_filename(filename);
 
@@ -231,7 +234,9 @@ Ring::edit(const gchar *filename)
 
 	current_save_dot();
 
+	qregisters.current = NULL;
 	if (buffer) {
+		current = buffer;
 		buffer->edit();
 	} else {
 		new_in_ring = true;
@@ -239,6 +244,8 @@ Ring::edit(const gchar *filename)
 		buffer = new Buffer();
 		LIST_INSERT_HEAD(&head, buffer, buffers);
 
+		current = buffer;
+
 		if (g_file_test(filename, G_FILE_TEST_IS_REGULAR)) {
 			buffer->load(filename);
 
@@ -258,9 +265,6 @@ Ring::edit(const gchar *filename)
 		}
 	}
 
-	qregisters.current = NULL;
-	current = buffer;
-
 	return new_in_ring;
 }
 
@@ -377,6 +381,11 @@ Ring::save(const gchar *filename)
 	if (!g_file_set_contents(filename, buffer, size, NULL))
 		return false;
 
+	interface.ssm(SCI_SETSAVEPOINT);
+	interface.undo_info_update(current);
+	undo.push_var(current->dirty);
+	current->dirty = false;
+
 	/*
 	 * FIXME: necessary also if the filename was not specified but the file
 	 * is (was) new, in order to canonicalize the filename.