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6e9a08c12f
Implement an optimized and universal way to safe and restore the column visibibility of ListTables (and all other VirtualStringTrees) by merging that code with the code for the column-resizing feature. - Drops global var ListTablesColumnNames and proc SetupListTablesHeader. - Change + move "RestoreColumnWidths" to private "RestoreListSetup", add code from SetupListTablesHeader - Change + move "SafeColumnWidths" to private "SafeListSetup", add code from MenuTablelistColumnsClick - Default visible columns are (must be) set at design time now Pro: - RestoreListSetup is called once in FormShow, while SetupListTablesHeader was called each time in LoadDatabaseProperties. - SafeListSetup is only called once in FormClose - Just safes the column indexes, not the column names in registry. Makes it safe to rename columns in the future - Less registry read/write access in general. - Safe/RestoreListSetup open an easy way to implement further list features (column moving, etc.) - Makes it a cakewalk to implement the same column un/hiding feature for the remaining 4 Lists. Contra: - people/developers who used a build from 870 to this one on will see their activated columns in ListTables reset to the default (7 first columns) because the registry key and value has changed. (but: better do that now than after an official relase)