Add undo for move. (rule_editor_add_undo): Add extra rank item.

2001-10-28    <NotZed@Ximian.com>

        * rule-editor.c (rule_move): Add undo for move.
        (rule_editor_add_undo): Add extra rank item.
        (rule_editor_play_undo): handle rank case.
        (rule_editor_finalise): Clean up any hanging over undo log.
        (editor_clicked): Only enable 'undo' if we have
        EVOLUTION_RULE_UNDO enabled.  Code still a bit flakey.
        (rule_editor_construct): Only enable a cancel button if
        EVOLUTION_RULE_UNDO is set.

        * filter-rule.c (filter_rule_set_name): Emit a changed event if it
        changes.
        (filter_rule_set_source): Same.

2001-10-26    <NotZed@Ximian.com>

        * rule-context.c (rule_context_find_rank_rule): Find a rule at a
        specific rank/source.

        * rule-editor.c (add_editor_clicked): Log the added object.
        (rule_editor_add_undo): New function to add an undo record to the
        rule editor.
        (edit_editor_clicked): Log the changed object.
        (rule_delete): Add undo object.
        (rule_editor_play_undo): Play an undo log back.

svn path=/trunk/; revision=14281

1 files changed, 20 insertions, 0 deletions

diff --git a/filter/rule-editor.h b/filter/rule-editor.h
index b981a61b65..f054023c87 100644
--- a/filter/rule-editor.h
+++ b/filter/rule-editor.h
@@ -30,6 +30,7 @@
 
 typedef struct _RuleEditor	RuleEditor;
 typedef struct _RuleEditorClass	RuleEditorClass;
+typedef struct _RuleEditorUndo	RuleEditorUndo;
 
 struct _RuleEditor {
 	GnomeDialog parent;
@@ -43,6 +44,9 @@ struct _RuleEditor {
 	
 	char *source;
 
+	struct _RuleEditorUndo *undo_log;	/* cancel/undo log */
+	unsigned int undo_active:1; /* we're performing undo */
+
 	struct _RuleEditorPrivate *priv;
 };
 
@@ -58,6 +62,22 @@ struct _RuleEditorClass {
 	/* signals */
 };
 
+enum {
+	RULE_EDITOR_LOG_EDIT,
+	RULE_EDITOR_LOG_ADD,
+	RULE_EDITOR_LOG_REMOVE,
+	RULE_EDITOR_LOG_RANK,
+};
+
+struct _RuleEditorUndo {
+	struct _RuleEditorUndo *next;
+
+	unsigned int type;
+	struct _FilterRule *rule;
+	int rank;
+	int newrank;
+};
+
 struct _GladeXML;
 struct _RuleContext;