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9e820dec13
This changes the TUI source and disassembly windows to use a curses pad for their text. This is an important step toward properly handling non-ASCII characters, because it makes it easy to scroll horizontally without needing gdb to also understand multi-byte character boundaries -- this can be wholly delegated to curses. Horizontal scrolling is probably also faster now, because no re-rendering is required. gdb/ChangeLog 2020-09-27 Tom Tromey <tom@tromey.com> * unittests/tui-selftests.c: Update. * tui/tui-winsource.h (struct tui_source_window_base) <extra_margin, show_line_number, refresh_pad>: New methods. <m_max_length, m_pad>: New members. (tui_copy_source_line): Update. * tui/tui-winsource.c (tui_copy_source_line): Remove line_no, first_col, line_width, ndigits parameters. Add length. (tui_source_window_base::show_source_line): Write to pad. Line number now 0-based. (tui_source_window_base::refresh_pad): New method. (tui_source_window_base::show_source_content): Write to pad. Call refresh_pad. (tui_source_window_base::do_scroll_horizontal): Call refresh_pad, not refill. (tui_source_window_base::update_exec_info): Call show_line_number. * tui/tui-source.h (struct tui_source_window) <extra_margin>: New method. <m_digits>: New member. * tui/tui-source.c (tui_source_window::set_contents): Set m_digits and m_max_length. (tui_source_window::show_line_number): New method. * tui/tui-io.h (tui_puts): Fix comment. * tui/tui-disasm.c (tui_disasm_window::set_contents): Set m_max_length.
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
/* TUI display source window.
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Copyright (C) 1998-2020 Free Software Foundation, Inc.
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Contributed by Hewlett-Packard Company.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef TUI_TUI_SOURCE_H
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#define TUI_TUI_SOURCE_H
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#include "tui/tui-data.h"
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#include "tui-winsource.h"
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struct symtab;
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/* A TUI source window. */
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struct tui_source_window : public tui_source_window_base
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{
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tui_source_window () = default;
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DISABLE_COPY_AND_ASSIGN (tui_source_window);
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const char *name () const override
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{
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return SRC_NAME;
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}
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/* Return true if the location LOC corresponds to the line number
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LINE_NO in this source window; false otherwise. */
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bool location_matches_p (struct bp_location *loc, int line_no) override;
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bool showing_source_p (const char *filename) const;
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void maybe_update (struct frame_info *fi, symtab_and_line sal) override;
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void erase_source_content () override
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{
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do_erase_source_content (_("[ No Source Available ]"));
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}
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void display_start_addr (struct gdbarch **gdbarch_p,
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CORE_ADDR *addr_p) override;
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protected:
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void do_scroll_vertical (int num_to_scroll) override;
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bool set_contents (struct gdbarch *gdbarch,
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const struct symtab_and_line &sal) override;
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int extra_margin () const override
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{
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return m_digits;
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}
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void show_line_number (int lineno) const override;
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private:
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/* Answer whether a particular line number or address is displayed
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in the current source window. */
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bool line_is_displayed (int line) const;
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/* How many digits to use when formatting the line number. This
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includes the trailing space. */
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int m_digits;
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/* It is the resolved form as returned by symtab_to_fullname. */
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gdb::unique_xmalloc_ptr<char> m_fullname;
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};
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#endif /* TUI_TUI_SOURCE_H */
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