don't HALT the active tool if it is in "preserve" mode. Fixes crashes when

2003-01-03  Michael Natterer  <mitch@gimp.org>

	* app/tools/tool_manager.c (tool_manager_image_undo_start): don't
	HALT the active tool if it is in "preserve" mode. Fixes crashes
	when e.g. the transform tool was pushing an undo group and
	implicitly HALTing itself in the middle of the transform
	operation.

ChangeLog

+2003-01-03  Michael Natterer  <mitch@gimp.org>
+
+	* app/tools/tool_manager.c (tool_manager_image_undo_start): don't
+	HALT the active tool if it is in "preserve" mode. Fixes crashes
+	when e.g. the transform tool was pushing an undo group and
+	implicitly HALTing itself in the middle of the transform
+	operation.
+
 2003-01-03  Michael Natterer  <mitch@gimp.org>
 	* app/widgets/gimpdialogfactory.c

app/tools/tool_manager.c

@@ -761,7 +761,8 @@ tool_manager_image_undo_start (GimpImage       *gimage,
       tool_manager->active_tool->gdisp &&
       tool_manager->active_tool->gdisp->gimage == gimage)
     {
-      tool_manager_control_active (gimage->gimp, HALT,
-                                   tool_manager->active_tool->gdisp);
+      if (! gimp_tool_control_preserve (tool_manager->active_tool->control))
+        tool_manager_control_active (gimage->gimp, HALT,
+                                     tool_manager->active_tool->gdisp);
     }
 }