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This patch starts with the observation that the code in tui_data_window::display_registers_from can all be replaced with a call to resize. To make this work propertly, it also changes tui_display_register to be the "rerender" method on tui_data_item_window. The refresh_window method is needed due to the use of nested windows here. The ncurses man page makes it sound like this is not very well supported; and experience bears this out: negelecting the touchwin call in this path will cause the register window to blank when switching focus. gdb/ChangeLog 2019-08-30 Tom Tromey <tom@tromey.com> * tui/tui-regs.h (struct tui_data_item_window) <rerender, refresh_window>: Declare. * tui/tui-regs.c (tui_data_window::display_registers_from): Call resize. (tui_data_item_window::rerender): Rename from tui_display_register. (tui_data_item_window::refresh_window): New method. * tui/tui-layout.c (tui_gen_win_info::resize): Do nothing on no-op.
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