Don't derive tui_data_item_window from tui_gen_win_info
There's no deep reason that tui_data_item_window should derive from tui_gen_win_info -- it currently uses a curses window to render, but that isn't truly needed, and it adds some hacks to other parts of the TUI. This patch changes tui_data_item_window so that it doesn't have a base class, and updates the register window. This simplifies the code and enables a subsequent cleanup. gdb/ChangeLog 2020-07-01 Tom Tromey <tom@tromey.com> * tui/tui-regs.c (tui_data_window::display_registers_from) (tui_data_window::display_registers_from) (tui_data_window::first_data_item_displayed) (tui_data_window::delete_data_content_windows): Update. (tui_data_window::refresh_window, tui_data_window::no_refresh): Remove. (tui_data_window::check_register_values): Update. (tui_data_item_window::rerender): Add parameters. Update. (tui_data_item_window::refresh_window): Remove. * tui/tui-data.h (struct tui_gen_win_info) <no_refresh>: No longer virtual. * tui/tui-regs.h (struct tui_data_item_window): Don't derive from tui_gen_win_info. <refresh_window, max_height, min_height>: Remove. <rerender>: Add parameters. <x, y, visible>: New members. (struct tui_data_window) <refresh_window, no_refresh>: Remove. <m_item_width>: New member.
This commit is contained in:
Tom Tromey
parent
22b7b0412b
commit
7134f2eb92
@ -1,3 +1,24 @@
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2020-07-01 Tom Tromey <tom@tromey.com>
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* tui/tui-regs.c (tui_data_window::display_registers_from)
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(tui_data_window::display_registers_from)
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(tui_data_window::first_data_item_displayed)
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(tui_data_window::delete_data_content_windows): Update.
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(tui_data_window::refresh_window, tui_data_window::no_refresh):
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Remove.
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(tui_data_window::check_register_values): Update.
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(tui_data_item_window::rerender): Add parameters. Update.
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(tui_data_item_window::refresh_window): Remove.
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* tui/tui-data.h (struct tui_gen_win_info) <no_refresh>: No longer
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virtual.
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* tui/tui-regs.h (struct tui_data_item_window): Don't derive from
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tui_gen_win_info.
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<refresh_window, max_height, min_height>: Remove.
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<rerender>: Add parameters.
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<x, y, visible>: New members.
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(struct tui_data_window) <refresh_window, no_refresh>: Remove.
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<m_item_width>: New member.
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2020-07-01 Tom Tromey <tom@tromey.com>
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* tui/tui-regs.c (tui_data_window::show_register_group)
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@ -102,7 +102,7 @@ public:
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}
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/* Disable output until the next call to doupdate. */
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virtual void no_refresh ()
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void no_refresh ()
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{
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if (handle != nullptr)
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wnoutrefresh (handle.get ());
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@ -272,8 +272,6 @@ tui_data_window::show_register_group (struct reggroup *group,
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void
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tui_data_window::display_registers_from (int start_element_no)
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{
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int j, item_win_width, cur_y;
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int max_len = 0;
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for (auto &&data_item_win : m_regs_content)
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{
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@ -282,26 +280,28 @@ tui_data_window::display_registers_from (int start_element_no)
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if (len > max_len)
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max_len = len;
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}
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item_win_width = max_len + 1;
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m_item_width = max_len + 1;
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int i = start_element_no;
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m_regs_column_count = (width - 2) / item_win_width;
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m_regs_column_count = (width - 2) / m_item_width;
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if (m_regs_column_count == 0)
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m_regs_column_count = 1;
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item_win_width = (width - 2) / m_regs_column_count;
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m_item_width = (width - 2) / m_regs_column_count;
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/* Now create each data "sub" window, and write the display into
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it. */
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cur_y = 1;
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int cur_y = 1;
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while (i < m_regs_content.size () && cur_y <= height - 2)
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{
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for (j = 0;
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for (int j = 0;
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j < m_regs_column_count && i < m_regs_content.size ();
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j++)
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{
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/* Create the window if necessary. */
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m_regs_content[i].resize (1, item_win_width,
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x + (item_win_width * j) + 1, y + cur_y);
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m_regs_content[i].x = (m_item_width * j) + 1;
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m_regs_content[i].y = cur_y;
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m_regs_content[i].visible = true;
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m_regs_content[i].rerender (handle.get (), m_item_width);
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i++; /* Next register. */
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}
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cur_y++; /* Next row. */
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@ -372,10 +372,7 @@ tui_data_window::first_data_item_displayed ()
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{
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for (int i = 0; i < m_regs_content.size (); i++)
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{
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struct tui_gen_win_info *data_item_win;
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data_item_win = &m_regs_content[i];
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if (data_item_win->is_visible ())
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if (m_regs_content[i].visible)
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return i;
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}
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@ -387,8 +384,8 @@ tui_data_window::first_data_item_displayed ()
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void
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tui_data_window::delete_data_content_windows ()
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{
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for (auto &&win : m_regs_content)
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win.handle.reset (nullptr);
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for (auto &win : m_regs_content)
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win.visible = false;
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}
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@ -451,24 +448,6 @@ tui_data_window::do_scroll_vertical (int num_to_scroll)
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}
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}
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/* See tui-regs.h. */
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void
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tui_data_window::refresh_window ()
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{
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tui_gen_win_info::refresh_window ();
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for (auto &&win : m_regs_content)
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win.refresh_window ();
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}
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void
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tui_data_window::no_refresh ()
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{
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tui_gen_win_info::no_refresh ();
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for (auto &&win : m_regs_content)
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win.no_refresh ();
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}
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/* This function check all displayed registers for changes in values,
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given a particular frame. If the values have changed, they are
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updated with the new value and highlighted. */
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@ -490,32 +469,28 @@ tui_data_window::check_register_values (struct frame_info *frame)
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&data_item_win.highlight);
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if (data_item_win.highlight || was_hilighted)
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data_item_win.rerender ();
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data_item_win.rerender (handle.get (), m_item_width);
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}
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}
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tui_wrefresh (handle.get ());
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}
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/* Display a register in a window. If hilite is TRUE, then the value
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will be displayed in reverse video. */
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void
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tui_data_item_window::rerender ()
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tui_data_item_window::rerender (WINDOW *handle, int field_width)
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{
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int i;
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scrollok (handle.get (), FALSE);
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if (highlight)
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/* We ignore the return value, casting it to void in order to avoid
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a compiler warning. The warning itself was introduced by a patch
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to ncurses 5.7 dated 2009-08-29, changing this macro to expand
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to code that causes the compiler to generate an unused-value
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warning. */
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(void) wstandout (handle.get ());
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(void) wstandout (handle);
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wmove (handle.get (), 0, 0);
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for (i = 1; i < width; i++)
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waddch (handle.get (), ' ');
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wmove (handle.get (), 0, 0);
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waddstr (handle.get (), content.c_str ());
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mvwaddnstr (handle, y, x, content.c_str (), field_width - 1);
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waddstr (handle, n_spaces (field_width - content.size ()));
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if (highlight)
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/* We ignore the return value, casting it to void in order to avoid
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@ -523,21 +498,7 @@ tui_data_item_window::rerender ()
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to ncurses 5.7 dated 2009-08-29, changing this macro to expand
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to code that causes the compiler to generate an unused-value
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warning. */
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(void) wstandend (handle.get ());
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refresh_window ();
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}
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void
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tui_data_item_window::refresh_window ()
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{
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if (handle != nullptr)
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{
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/* This seems to be needed because the data items are nested
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windows, which according to the ncurses man pages aren't well
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supported. */
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touchwin (handle.get ());
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tui_wrefresh (handle.get ());
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}
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(void) wstandend (handle);
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}
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/* Helper for "tui reg next", wraps a call to REGGROUP_NEXT, but adds wrap
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@ -26,7 +26,7 @@
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/* A data item window. */
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struct tui_data_item_window : public tui_gen_win_info
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struct tui_data_item_window
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{
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tui_data_item_window () = default;
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@ -34,23 +34,15 @@ struct tui_data_item_window : public tui_gen_win_info
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tui_data_item_window (tui_data_item_window &&) = default;
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void rerender () override;
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void refresh_window () override;
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int max_height () const override
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{
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return 1;
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}
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int min_height () const override
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{
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return 1;
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}
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void rerender (WINDOW *handle, int field_width);
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/* Location. */
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int x = 0;
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int y = 0;
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/* The register number. */
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int regno = -1;
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bool highlight = false;
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bool visible = false;
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std::string content;
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};
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@ -61,10 +53,6 @@ struct tui_data_window : public tui_win_info
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DISABLE_COPY_AND_ASSIGN (tui_data_window);
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void refresh_window () override;
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void no_refresh () override;
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const char *name () const override
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{
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return DATA_NAME;
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@ -138,6 +126,9 @@ private:
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std::vector<tui_data_item_window> m_regs_content;
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int m_regs_column_count = 0;
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struct reggroup *m_current_group = nullptr;
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/* Width of each register's display area. */
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int m_item_width = 0;
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};
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#endif /* TUI_TUI_REGS_H */
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