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/* TUI window generic functions. Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. Contributed by Hewlett-Packard Company. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* This module contains procedures for handling tui window functions like resize, scrolling, scrolling, changing focus, etc. Author: Susan B. Macchia */ #include "defs.h" #include "command.h" #include "symtab.h" #include "breakpoint.h" #include "frame.h" #include "cli/cli-cmds.h" #include "top.h" #include "source.h" #include "tui/tui.h" #include "tui/tui-data.h" #include "tui/tui-wingeneral.h" #include "tui/tui-stack.h" #include "tui/tui-regs.h" #include "tui/tui-disasm.h" #include "tui/tui-source.h" #include "tui/tui-winsource.h" #include "tui/tui-windata.h" #include "tui/tui-win.h" #include "gdb_curses.h" #include "gdb_string.h" #include <ctype.h> #include "readline/readline.h" #include <signal.h> /******************************* ** Static Local Decls ********************************/ static void make_visible_with_new_height (struct tui_win_info *); static void make_invisible_and_set_new_height (struct tui_win_info *, int); static enum tui_status tui_adjust_win_heights (struct tui_win_info *, int); static int new_height_ok (struct tui_win_info *, int); static void tui_set_tab_width_command (char *, int); static void tui_refresh_all_command (char *, int); static void tui_set_win_height_command (char *, int); static void tui_xdb_set_win_height_command (char *, int); static void tui_all_windows_info (char *, int); static void tui_set_focus_command (char *, int); static void tui_scroll_forward_command (char *, int); static void tui_scroll_backward_command (char *, int); static void tui_scroll_left_command (char *, int); static void tui_scroll_right_command (char *, int); static void parse_scrolling_args (char *, struct tui_win_info **, int *); /*************************************** ** DEFINITIONS ***************************************/ #define WIN_HEIGHT_USAGE "Usage: winheight <win_name> [+ | -] <#lines>\n" #define XDBWIN_HEIGHT_USAGE "Usage: w <#lines>\n" #define FOCUS_USAGE "Usage: focus {<win> | next | prev}\n" /*************************************** ** PUBLIC FUNCTIONS ***************************************/ #ifndef ACS_LRCORNER # define ACS_LRCORNER '+' #endif #ifndef ACS_LLCORNER # define ACS_LLCORNER '+' #endif #ifndef ACS_ULCORNER # define ACS_ULCORNER '+' #endif #ifndef ACS_URCORNER # define ACS_URCORNER '+' #endif #ifndef ACS_HLINE # define ACS_HLINE '-' #endif #ifndef ACS_VLINE # define ACS_VLINE '|' #endif /* Possible values for tui-border-kind variable. */ static const char *tui_border_kind_enums[] = { "space", "ascii", "acs", NULL }; /* Possible values for tui-border-mode and tui-active-border-mode. */ static const char *tui_border_mode_enums[] = { "normal", "standout", "reverse", "half", "half-standout", "bold", "bold-standout", NULL }; struct tui_translate { const char *name; int value; }; /* Translation table for border-mode variables. The list of values must be terminated by a NULL. After the NULL value, an entry defines the default. */ struct tui_translate tui_border_mode_translate[] = { { "normal", A_NORMAL }, { "standout", A_STANDOUT }, { "reverse", A_REVERSE }, { "half", A_DIM }, { "half-standout", A_DIM | A_STANDOUT }, { "bold", A_BOLD }, { "bold-standout", A_BOLD | A_STANDOUT }, { 0, 0 }, { "normal", A_NORMAL } }; /* Translation tables for border-kind, one for each border character (see wborder, border curses operations). -1 is used to indicate the ACS because ACS characters are determined at run time by curses (depends on terminal). */ struct tui_translate tui_border_kind_translate_vline[] = { { "space", ' ' }, { "ascii", '|' }, { "acs", -1 }, { 0, 0 }, { "ascii", '|' } }; struct tui_translate tui_border_kind_translate_hline[] = { { "space", ' ' }, { "ascii", '-' }, { "acs", -1 }, { 0, 0 }, { "ascii", '-' } }; struct tui_translate tui_border_kind_translate_ulcorner[] = { { "space", ' ' }, { "ascii", '+' }, { "acs", -1 }, { 0, 0 }, { "ascii", '+' } }; struct tui_translate tui_border_kind_translate_urcorner[] = { { "space", ' ' }, { "ascii", '+' }, { "acs", -1 }, { 0, 0 }, { "ascii", '+' } }; struct tui_translate tui_border_kind_translate_llcorner[] = { { "space", ' ' }, { "ascii", '+' }, { "acs", -1 }, { 0, 0 }, { "ascii", '+' } }; struct tui_translate tui_border_kind_translate_lrcorner[] = { { "space", ' ' }, { "ascii", '+' }, { "acs", -1 }, { 0, 0 }, { "ascii", '+' } }; /* Tui configuration variables controlled with set/show command. */ const char *tui_active_border_mode = "bold-standout"; static void show_tui_active_border_mode (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) { fprintf_filtered (file, _("\ The attribute mode to use for the active TUI window border is \"%s\".\n"), value); } const char *tui_border_mode = "normal"; static void show_tui_border_mode (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) { fprintf_filtered (file, _("\ The attribute mode to use for the TUI window borders is \"%s\".\n"), value); } const char *tui_border_kind = "acs"; static void show_tui_border_kind (struct ui_file *file, int from_tty, struct cmd_list_element *c, const char *value) { fprintf_filtered (file, _("The kind of border for TUI windows is \"%s\".\n"), value); } /* Tui internal configuration variables. These variables are updated by tui_update_variables to reflect the tui configuration variables. */ chtype tui_border_vline; chtype tui_border_hline; chtype tui_border_ulcorner; chtype tui_border_urcorner; chtype tui_border_llcorner; chtype tui_border_lrcorner; int tui_border_attrs; int tui_active_border_attrs; /* Identify the item in the translation table. When the item is not recognized, use the default entry. */ static struct tui_translate * translate (const char *name, struct tui_translate *table) { while (table->name) { if (name && strcmp (table->name, name) == 0) return table; table++; } /* Not found, return default entry. */ table++; return table; } /* Update the tui internal configuration according to gdb settings. Returns 1 if the configuration has changed and the screen should be redrawn. */ int tui_update_variables (void) { int need_redraw = 0; struct tui_translate *entry; entry = translate (tui_border_mode, tui_border_mode_translate); if (tui_border_attrs != entry->value) { tui_border_attrs = entry->value; need_redraw = 1; } entry = translate (tui_active_border_mode, tui_border_mode_translate); if (tui_active_border_attrs != entry->value) { tui_active_border_attrs = entry->value; need_redraw = 1; } /* If one corner changes, all characters are changed. Only check the first one. The ACS characters are determined at run time by curses terminal management. */ entry = translate (tui_border_kind, tui_border_kind_translate_lrcorner); if (tui_border_lrcorner != (chtype) entry->value) { tui_border_lrcorner = (entry->value < 0) ? ACS_LRCORNER : entry->value; need_redraw = 1; } entry = translate (tui_border_kind, tui_border_kind_translate_llcorner); tui_border_llcorner = (entry->value < 0) ? ACS_LLCORNER : entry->value; entry = translate (tui_border_kind, tui_border_kind_translate_ulcorner); tui_border_ulcorner = (entry->value < 0) ? ACS_ULCORNER : entry->value; entry = translate (tui_border_kind, tui_border_kind_translate_urcorner); tui_border_urcorner = (entry->value < 0) ? ACS_URCORNER : entry->value; entry = translate (tui_border_kind, tui_border_kind_translate_hline); tui_border_hline = (entry->value < 0) ? ACS_HLINE : entry->value; entry = translate (tui_border_kind, tui_border_kind_translate_vline); tui_border_vline = (entry->value < 0) ? ACS_VLINE : entry->value; return need_redraw; } static void set_tui_cmd (char *args, int from_tty) { } static void show_tui_cmd (char *args, int from_tty) { } static struct cmd_list_element *tuilist; static void tui_command (char *args, int from_tty) { printf_unfiltered (_("\"tui\" must be followed by the name of a " "tui command.\n")); help_list (tuilist, "tui ", -1, gdb_stdout); } struct cmd_list_element ** tui_get_cmd_list (void) { if (tuilist == 0) add_prefix_cmd ("tui", class_tui, tui_command, _("Text User Interface commands."), &tuilist, "tui ", 0, &cmdlist); return &tuilist; } /* Function to initialize gdb commands, for tui window manipulation. */ /* Provide a prototype to silence -Wmissing-prototypes. */ extern initialize_file_ftype _initialize_tui_win; void _initialize_tui_win (void) { static struct cmd_list_element *tui_setlist; static struct cmd_list_element *tui_showlist; /* Define the classes of commands. They will appear in the help list in the reverse of this order. */ add_prefix_cmd ("tui", class_tui, set_tui_cmd, _("TUI configuration variables"), &tui_setlist, "set tui ", 0 /* allow-unknown */, &setlist); add_prefix_cmd ("tui", class_tui, show_tui_cmd, _("TUI configuration variables"), &tui_showlist, "show tui ", 0 /* allow-unknown */, &showlist); add_com ("refresh", class_tui, tui_refresh_all_command, _("Refresh the terminal display.\n")); if (xdb_commands) add_com_alias ("U", "refresh", class_tui, 0); add_com ("tabset", class_tui, tui_set_tab_width_command, _("\ Set the width (in characters) of tab stops.\n\ Usage: tabset <n>\n")); add_com ("winheight", class_tui, tui_set_win_height_command, _("\ Set the height of a specified window.\n\ Usage: winheight <win_name> [+ | -] <#lines>\n\ Window names are:\n\ src : the source window\n\ cmd : the command window\n\ asm : the disassembly window\n\ regs : the register display\n")); add_com_alias ("wh", "winheight", class_tui, 0); add_info ("win", tui_all_windows_info, _("List of all displayed windows.\n")); add_com ("focus", class_tui, tui_set_focus_command, _("\ Set focus to named window or next/prev window.\n\ Usage: focus {<win> | next | prev}\n\ Valid Window names are:\n\ src : the source window\n\ asm : the disassembly window\n\ regs : the register display\n\ cmd : the command window\n")); add_com_alias ("fs", "focus", class_tui, 0); add_com ("+", class_tui, tui_scroll_forward_command, _("\ Scroll window forward.\n\ Usage: + [win] [n]\n")); add_com ("-", class_tui, tui_scroll_backward_command, _("\ Scroll window backward.\n\ Usage: - [win] [n]\n")); add_com ("<", class_tui, tui_scroll_left_command, _("\ Scroll window forward.\n\ Usage: < [win] [n]\n")); add_com (">", class_tui, tui_scroll_right_command, _("\ Scroll window backward.\n\ Usage: > [win] [n]\n")); if (xdb_commands) add_com ("w", class_xdb, tui_xdb_set_win_height_command, _("\ XDB compatibility command for setting the height of a command window.\n\ Usage: w <#lines>\n")); /* Define the tui control variables. */ add_setshow_enum_cmd ("border-kind", no_class, tui_border_kind_enums, &tui_border_kind, _("\ Set the kind of border for TUI windows."), _("\ Show the kind of border for TUI windows."), _("\ This variable controls the border of TUI windows:\n\ space use a white space\n\ ascii use ascii characters + - | for the border\n\ acs use the Alternate Character Set"), NULL, show_tui_border_kind, &tui_setlist, &tui_showlist); add_setshow_enum_cmd ("border-mode", no_class, tui_border_mode_enums, &tui_border_mode, _("\ Set the attribute mode to use for the TUI window borders."), _("\ Show the attribute mode to use for the TUI window borders."), _("\ This variable controls the attributes to use for the window borders:\n\ normal normal display\n\ standout use highlight mode of terminal\n\ reverse use reverse video mode\n\ half use half bright\n\ half-standout use half bright and standout mode\n\ bold use extra bright or bold\n\ bold-standout use extra bright or bold with standout mode"), NULL, show_tui_border_mode, &tui_setlist, &tui_showlist); add_setshow_enum_cmd ("active-border-mode", no_class, tui_border_mode_enums, &tui_active_border_mode, _("\ Set the attribute mode to use for the active TUI window border."), _("\ Show the attribute mode to use for the active TUI window border."), _("\ This variable controls the attributes to use for the active window border:\n\ normal normal display\n\ standout use highlight mode of terminal\n\ reverse use reverse video mode\n\ half use half bright\n\ half-standout use half bright and standout mode\n\ bold use extra bright or bold\n\ bold-standout use extra bright or bold with standout mode"), NULL, show_tui_active_border_mode, &tui_setlist, &tui_showlist); } /* Update gdb's knowledge of the terminal size. */ void tui_update_gdb_sizes (void) { char cmd[50]; /* Set to TUI command window dimension or use readline values. */ sprintf (cmd, "set width %d", tui_active ? TUI_CMD_WIN->generic.width : tui_term_width()); execute_command (cmd, 0); sprintf (cmd, "set height %d", tui_active ? TUI_CMD_WIN->generic.height : tui_term_height()); execute_command (cmd, 0); } /* Set the logical focus to win_info. */ void tui_set_win_focus_to (struct tui_win_info *win_info) { if (win_info != NULL) { struct tui_win_info *win_with_focus = tui_win_with_focus (); if (win_with_focus != NULL && win_with_focus->generic.type != CMD_WIN) tui_unhighlight_win (win_with_focus); tui_set_win_with_focus (win_info); if (win_info->generic.type != CMD_WIN) tui_highlight_win (win_info); } } void tui_scroll_forward (struct tui_win_info *win_to_scroll, int num_to_scroll) { if (win_to_scroll != TUI_CMD_WIN) { int _num_to_scroll = num_to_scroll; if (num_to_scroll == 0) _num_to_scroll = win_to_scroll->generic.height - 3; /* If we are scrolling the source or disassembly window, do a "psuedo" scroll since not all of the source is in memory, only what is in the viewport. If win_to_scroll is the command window do nothing since the term should handle it. */ if (win_to_scroll == TUI_SRC_WIN) tui_vertical_source_scroll (FORWARD_SCROLL, _num_to_scroll); else if (win_to_scroll == TUI_DISASM_WIN) tui_vertical_disassem_scroll (FORWARD_SCROLL, _num_to_scroll); else if (win_to_scroll == TUI_DATA_WIN) tui_vertical_data_scroll (FORWARD_SCROLL, _num_to_scroll); } } void tui_scroll_backward (struct tui_win_info *win_to_scroll, int num_to_scroll) { if (win_to_scroll != TUI_CMD_WIN) { int _num_to_scroll = num_to_scroll; if (num_to_scroll == 0) _num_to_scroll = win_to_scroll->generic.height - 3; /* If we are scrolling the source or disassembly window, do a "psuedo" scroll since not all of the source is in memory, only what is in the viewport. If win_to_scroll is the command window do nothing since the term should handle it. */ if (win_to_scroll == TUI_SRC_WIN) tui_vertical_source_scroll (BACKWARD_SCROLL, _num_to_scroll); else if (win_to_scroll == TUI_DISASM_WIN) tui_vertical_disassem_scroll (BACKWARD_SCROLL, _num_to_scroll); else if (win_to_scroll == TUI_DATA_WIN) tui_vertical_data_scroll (BACKWARD_SCROLL, _num_to_scroll); } } void tui_scroll_left (struct tui_win_info *win_to_scroll, int num_to_scroll) { if (win_to_scroll != TUI_CMD_WIN) { int _num_to_scroll = num_to_scroll; if (_num_to_scroll == 0) _num_to_scroll = 1; /* If we are scrolling the source or disassembly window, do a "psuedo" scroll since not all of the source is in memory, only what is in the viewport. If win_to_scroll is the command window do nothing since the term should handle it. */ if (win_to_scroll == TUI_SRC_WIN || win_to_scroll == TUI_DISASM_WIN) tui_horizontal_source_scroll (win_to_scroll, LEFT_SCROLL, _num_to_scroll); } } void tui_scroll_right (struct tui_win_info *win_to_scroll, int num_to_scroll) { if (win_to_scroll != TUI_CMD_WIN) { int _num_to_scroll = num_to_scroll; if (_num_to_scroll == 0) _num_to_scroll = 1; /* If we are scrolling the source or disassembly window, do a "psuedo" scroll since not all of the source is in memory, only what is in the viewport. If win_to_scroll is the command window do nothing since the term should handle it. */ if (win_to_scroll == TUI_SRC_WIN || win_to_scroll == TUI_DISASM_WIN) tui_horizontal_source_scroll (win_to_scroll, RIGHT_SCROLL, _num_to_scroll); } } /* Scroll a window. Arguments are passed through a va_list. */ void tui_scroll (enum tui_scroll_direction direction, struct tui_win_info *win_to_scroll, int num_to_scroll) { switch (direction) { case FORWARD_SCROLL: tui_scroll_forward (win_to_scroll, num_to_scroll); break; case BACKWARD_SCROLL: tui_scroll_backward (win_to_scroll, num_to_scroll); break; case LEFT_SCROLL: tui_scroll_left (win_to_scroll, num_to_scroll); break; case RIGHT_SCROLL: tui_scroll_right (win_to_scroll, num_to_scroll); break; default: break; } } void tui_refresh_all_win (void) { enum tui_win_type type; clearok (curscr, TRUE); tui_refresh_all (tui_win_list); for (type = SRC_WIN; type < MAX_MAJOR_WINDOWS; type++) { if (tui_win_list[type] && tui_win_list[type]->generic.is_visible) { switch (type) { case SRC_WIN: case DISASSEM_WIN: tui_show_source_content (tui_win_list[type]); tui_check_and_display_highlight_if_needed (tui_win_list[type]); tui_erase_exec_info_content (tui_win_list[type]); tui_update_exec_info (tui_win_list[type]); break; case DATA_WIN: tui_refresh_data_win (); break; default: break; } } } tui_show_locator_content (); } /* Resize all the windows based on the the terminal size. This function gets called from within the readline sinwinch handler. */ void tui_resize_all (void) { int height_diff, width_diff; int screenheight, screenwidth; rl_get_screen_size (&screenheight, &screenwidth); width_diff = screenwidth - tui_term_width (); height_diff = screenheight - tui_term_height (); if (height_diff || width_diff) { enum tui_layout_type cur_layout = tui_current_layout (); struct tui_win_info *win_with_focus = tui_win_with_focus (); struct tui_win_info *first_win; struct tui_win_info *second_win; struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); enum tui_win_type win_type; int new_height, split_diff, cmd_split_diff, num_wins_displayed = 2; #ifdef HAVE_RESIZE_TERM resize_term (screenheight, screenwidth); #endif /* Turn keypad off while we resize. */ if (win_with_focus != TUI_CMD_WIN) keypad (TUI_CMD_WIN->generic.handle, FALSE); tui_update_gdb_sizes (); tui_set_term_height_to (screenheight); tui_set_term_width_to (screenwidth); if (cur_layout == SRC_DISASSEM_COMMAND || cur_layout == SRC_DATA_COMMAND || cur_layout == DISASSEM_DATA_COMMAND) num_wins_displayed++; split_diff = height_diff / num_wins_displayed; cmd_split_diff = split_diff; if (height_diff % num_wins_displayed) { if (height_diff < 0) cmd_split_diff--; else cmd_split_diff++; } /* Now adjust each window. */ clear (); refresh (); switch (cur_layout) { case SRC_COMMAND: case DISASSEM_COMMAND: first_win = (struct tui_win_info *) (tui_source_windows ())->list[0]; first_win->generic.width += width_diff; locator->width += width_diff; /* Check for invalid heights. */ if (height_diff == 0) new_height = first_win->generic.height; else if ((first_win->generic.height + split_diff) >= (screenheight - MIN_CMD_WIN_HEIGHT - 1)) new_height = screenheight - MIN_CMD_WIN_HEIGHT - 1; else if ((first_win->generic.height + split_diff) <= 0) new_height = MIN_WIN_HEIGHT; else new_height = first_win->generic.height + split_diff; make_invisible_and_set_new_height (first_win, new_height); TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1; TUI_CMD_WIN->generic.width += width_diff; new_height = screenheight - TUI_CMD_WIN->generic.origin.y; make_invisible_and_set_new_height (TUI_CMD_WIN, new_height); make_visible_with_new_height (first_win); make_visible_with_new_height (TUI_CMD_WIN); if (first_win->generic.content_size <= 0) tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT); break; default: if (cur_layout == SRC_DISASSEM_COMMAND) { first_win = TUI_SRC_WIN; first_win->generic.width += width_diff; second_win = TUI_DISASM_WIN; second_win->generic.width += width_diff; } else { first_win = TUI_DATA_WIN; first_win->generic.width += width_diff; second_win = (struct tui_win_info *) (tui_source_windows ())->list[0]; second_win->generic.width += width_diff; } /* Change the first window's height/width. */ /* Check for invalid heights. */ if (height_diff == 0) new_height = first_win->generic.height; else if ((first_win->generic.height + second_win->generic.height + (split_diff * 2)) >= (screenheight - MIN_CMD_WIN_HEIGHT - 1)) new_height = (screenheight - MIN_CMD_WIN_HEIGHT - 1) / 2; else if ((first_win->generic.height + split_diff) <= 0) new_height = MIN_WIN_HEIGHT; else new_height = first_win->generic.height + split_diff; make_invisible_and_set_new_height (first_win, new_height); locator->width += width_diff; /* Change the second window's height/width. */ /* Check for invalid heights. */ if (height_diff == 0) new_height = second_win->generic.height; else if ((first_win->generic.height + second_win->generic.height + (split_diff * 2)) >= (screenheight - MIN_CMD_WIN_HEIGHT - 1)) { new_height = screenheight - MIN_CMD_WIN_HEIGHT - 1; if (new_height % 2) new_height = (new_height / 2) + 1; else new_height /= 2; } else if ((second_win->generic.height + split_diff) <= 0) new_height = MIN_WIN_HEIGHT; else new_height = second_win->generic.height + split_diff; second_win->generic.origin.y = first_win->generic.height - 1; make_invisible_and_set_new_height (second_win, new_height); /* Change the command window's height/width. */ TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1; make_invisible_and_set_new_height ( TUI_CMD_WIN, TUI_CMD_WIN->generic.height + cmd_split_diff); make_visible_with_new_height (first_win); make_visible_with_new_height (second_win); make_visible_with_new_height (TUI_CMD_WIN); if (first_win->generic.content_size <= 0) tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT); if (second_win->generic.content_size <= 0) tui_erase_source_content (second_win, EMPTY_SOURCE_PROMPT); break; } /* Now remove all invisible windows, and their content so that they get created again when called for with the new size. */ for (win_type = SRC_WIN; (win_type < MAX_MAJOR_WINDOWS); win_type++) { if (win_type != CMD_WIN && (tui_win_list[win_type] != NULL) && !tui_win_list[win_type]->generic.is_visible) { tui_free_window (tui_win_list[win_type]); tui_win_list[win_type] = (struct tui_win_info *) NULL; } } tui_set_win_resized_to (TRUE); /* Turn keypad back on, unless focus is in the command window. */ if (win_with_focus != TUI_CMD_WIN) keypad (TUI_CMD_WIN->generic.handle, TRUE); } } #ifdef SIGWINCH /* SIGWINCH signal handler for the tui. This signal handler is always called, even when the readline package clears signals because it is set as the old_sigwinch() (TUI only). */ static void tui_sigwinch_handler (int signal) { /* Say that a resize was done so that the readline can do it later when appropriate. */ tui_set_win_resized_to (TRUE); } #endif /* Initializes SIGWINCH signal handler for the tui. */ void tui_initialize_win (void) { #ifdef SIGWINCH #ifdef HAVE_SIGACTION struct sigaction old_winch; memset (&old_winch, 0, sizeof (old_winch)); old_winch.sa_handler = &tui_sigwinch_handler; sigaction (SIGWINCH, &old_winch, NULL); #else signal (SIGWINCH, &tui_sigwinch_handler); #endif #endif } /************************* ** STATIC LOCAL FUNCTIONS **************************/ static void tui_scroll_forward_command (char *arg, int from_tty) { int num_to_scroll = 1; struct tui_win_info *win_to_scroll; /* Make sure the curses mode is enabled. */ tui_enable (); if (arg == (char *) NULL) parse_scrolling_args (arg, &win_to_scroll, (int *) NULL); else parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll); tui_scroll (FORWARD_SCROLL, win_to_scroll, num_to_scroll); } static void tui_scroll_backward_command (char *arg, int from_tty) { int num_to_scroll = 1; struct tui_win_info *win_to_scroll; /* Make sure the curses mode is enabled. */ tui_enable (); if (arg == (char *) NULL) parse_scrolling_args (arg, &win_to_scroll, (int *) NULL); else parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll); tui_scroll (BACKWARD_SCROLL, win_to_scroll, num_to_scroll); } static void tui_scroll_left_command (char *arg, int from_tty) { int num_to_scroll; struct tui_win_info *win_to_scroll; /* Make sure the curses mode is enabled. */ tui_enable (); parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll); tui_scroll (LEFT_SCROLL, win_to_scroll, num_to_scroll); } static void tui_scroll_right_command (char *arg, int from_tty) { int num_to_scroll; struct tui_win_info *win_to_scroll; /* Make sure the curses mode is enabled. */ tui_enable (); parse_scrolling_args (arg, &win_to_scroll, &num_to_scroll); tui_scroll (RIGHT_SCROLL, win_to_scroll, num_to_scroll); } /* Set focus to the window named by 'arg'. */ static void tui_set_focus (char *arg, int from_tty) { if (arg != (char *) NULL) { char *buf_ptr = (char *) xstrdup (arg); int i; struct tui_win_info *win_info = (struct tui_win_info *) NULL; for (i = 0; (i < strlen (buf_ptr)); i++) buf_ptr[i] = toupper (arg[i]); if (subset_compare (buf_ptr, "NEXT")) win_info = tui_next_win (tui_win_with_focus ()); else if (subset_compare (buf_ptr, "PREV")) win_info = tui_prev_win (tui_win_with_focus ()); else win_info = tui_partial_win_by_name (buf_ptr); if (win_info == (struct tui_win_info *) NULL || !win_info->generic.is_visible) warning (_("Invalid window specified. \n\ The window name specified must be valid and visible.\n")); else { tui_set_win_focus_to (win_info); keypad (TUI_CMD_WIN->generic.handle, (win_info != TUI_CMD_WIN)); } if (TUI_DATA_WIN && TUI_DATA_WIN->generic.is_visible) tui_refresh_data_win (); xfree (buf_ptr); printf_filtered (_("Focus set to %s window.\n"), tui_win_name ((struct tui_gen_win_info *) tui_win_with_focus ())); } else warning (_("Incorrect Number of Arguments.\n%s"), FOCUS_USAGE); } static void tui_set_focus_command (char *arg, int from_tty) { /* Make sure the curses mode is enabled. */ tui_enable (); tui_set_focus (arg, from_tty); } static void tui_all_windows_info (char *arg, int from_tty) { enum tui_win_type type; struct tui_win_info *win_with_focus = tui_win_with_focus (); for (type = SRC_WIN; (type < MAX_MAJOR_WINDOWS); type++) if (tui_win_list[type] && tui_win_list[type]->generic.is_visible) { if (win_with_focus == tui_win_list[type]) printf_filtered (" %s\t(%d lines) <has focus>\n", tui_win_name (&tui_win_list[type]->generic), tui_win_list[type]->generic.height); else printf_filtered (" %s\t(%d lines)\n", tui_win_name (&tui_win_list[type]->generic), tui_win_list[type]->generic.height); } } static void tui_refresh_all_command (char *arg, int from_tty) { /* Make sure the curses mode is enabled. */ tui_enable (); tui_refresh_all_win (); } /* Set the height of the specified window. */ static void tui_set_tab_width_command (char *arg, int from_tty) { /* Make sure the curses mode is enabled. */ tui_enable (); if (arg != (char *) NULL) { int ts; ts = atoi (arg); if (ts > 0) tui_set_default_tab_len (ts); else warning (_("Tab widths greater than 0 must be specified.")); } } /* Set the height of the specified window. */ static void tui_set_win_height (char *arg, int from_tty) { /* Make sure the curses mode is enabled. */ tui_enable (); if (arg != (char *) NULL) { char *buf = xstrdup (arg); char *buf_ptr = buf; char *wname = (char *) NULL; int new_height, i; struct tui_win_info *win_info; wname = buf_ptr; buf_ptr = strchr (buf_ptr, ' '); if (buf_ptr != (char *) NULL) { *buf_ptr = (char) 0; /* Validate the window name. */ for (i = 0; i < strlen (wname); i++) wname[i] = toupper (wname[i]); win_info = tui_partial_win_by_name (wname); if (win_info == (struct tui_win_info *) NULL || !win_info->generic.is_visible) warning (_("Invalid window specified. \n\ The window name specified must be valid and visible.\n")); else { /* Process the size. */ while (*(++buf_ptr) == ' ') ; if (*buf_ptr != (char) 0) { int negate = FALSE; int fixed_size = TRUE; int input_no;; if (*buf_ptr == '+' || *buf_ptr == '-') { if (*buf_ptr == '-') negate = TRUE; fixed_size = FALSE; buf_ptr++; } input_no = atoi (buf_ptr); if (input_no > 0) { if (negate) input_no *= (-1); if (fixed_size) new_height = input_no; else new_height = win_info->generic.height + input_no; /* Now change the window's height, and adjust all other windows around it. */ if (tui_adjust_win_heights (win_info, new_height) == TUI_FAILURE) warning (_("Invalid window height specified.\n%s"), WIN_HEIGHT_USAGE); else tui_update_gdb_sizes (); } else warning (_("Invalid window height specified.\n%s"), WIN_HEIGHT_USAGE); } } } else printf_filtered (WIN_HEIGHT_USAGE); if (buf != (char *) NULL) xfree (buf); } else printf_filtered (WIN_HEIGHT_USAGE); } /* Set the height of the specified window, with va_list. */ static void tui_set_win_height_command (char *arg, int from_tty) { /* Make sure the curses mode is enabled. */ tui_enable (); tui_set_win_height (arg, from_tty); } /* XDB Compatibility command for setting the window height. This will increase or decrease the command window by the specified amount. */ static void tui_xdb_set_win_height (char *arg, int from_tty) { /* Make sure the curses mode is enabled. */ tui_enable (); if (arg != (char *) NULL) { int input_no = atoi (arg); if (input_no > 0) { /* Add 1 for the locator. */ int new_height = tui_term_height () - (input_no + 1); if (!new_height_ok (tui_win_list[CMD_WIN], new_height) || tui_adjust_win_heights (tui_win_list[CMD_WIN], new_height) == TUI_FAILURE) warning (_("Invalid window height specified.\n%s"), XDBWIN_HEIGHT_USAGE); } else warning (_("Invalid window height specified.\n%s"), XDBWIN_HEIGHT_USAGE); } else warning (_("Invalid window height specified.\n%s"), XDBWIN_HEIGHT_USAGE); } /* Set the height of the specified window, with va_list. */ static void tui_xdb_set_win_height_command (char *arg, int from_tty) { tui_xdb_set_win_height (arg, from_tty); } /* Function to adjust all window heights around the primary. */ static enum tui_status tui_adjust_win_heights (struct tui_win_info *primary_win_info, int new_height) { enum tui_status status = TUI_FAILURE; if (new_height_ok (primary_win_info, new_height)) { status = TUI_SUCCESS; if (new_height != primary_win_info->generic.height) { int diff; struct tui_win_info *win_info; struct tui_gen_win_info *locator = tui_locator_win_info_ptr (); enum tui_layout_type cur_layout = tui_current_layout (); diff = (new_height - primary_win_info->generic.height) * (-1); if (cur_layout == SRC_COMMAND || cur_layout == DISASSEM_COMMAND) { struct tui_win_info *src_win_info; make_invisible_and_set_new_height (primary_win_info, new_height); if (primary_win_info->generic.type == CMD_WIN) { win_info = (tui_source_windows ())->list[0]; src_win_info = win_info; } else { win_info = tui_win_list[CMD_WIN]; src_win_info = primary_win_info; } make_invisible_and_set_new_height (win_info, win_info->generic.height + diff); TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1; make_visible_with_new_height (win_info); make_visible_with_new_height (primary_win_info); if (src_win_info->generic.content_size <= 0) tui_erase_source_content (src_win_info, EMPTY_SOURCE_PROMPT); } else { struct tui_win_info *first_win; struct tui_win_info *second_win; if (cur_layout == SRC_DISASSEM_COMMAND) { first_win = TUI_SRC_WIN; second_win = TUI_DISASM_WIN; } else { first_win = TUI_DATA_WIN; second_win = (tui_source_windows ())->list[0]; } if (primary_win_info == TUI_CMD_WIN) { /* Split the change in height accross the 1st & 2nd windows, adjusting them as well. */ /* Subtract the locator. */ int first_split_diff = diff / 2; int second_split_diff = first_split_diff; if (diff % 2) { if (first_win->generic.height > second_win->generic.height) if (diff < 0) first_split_diff--; else first_split_diff++; else { if (diff < 0) second_split_diff--; else second_split_diff++; } } /* Make sure that the minimum hieghts are honored. */ while ((first_win->generic.height + first_split_diff) < 3) { first_split_diff++; second_split_diff--; } while ((second_win->generic.height + second_split_diff) < 3) { second_split_diff++; first_split_diff--; } make_invisible_and_set_new_height ( first_win, first_win->generic.height + first_split_diff); second_win->generic.origin.y = first_win->generic.height - 1; make_invisible_and_set_new_height ( second_win, second_win->generic.height + second_split_diff); TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1; make_invisible_and_set_new_height (TUI_CMD_WIN, new_height); } else { if ((TUI_CMD_WIN->generic.height + diff) < 1) { /* If there is no way to increase the command window take real estate from the 1st or 2nd window. */ if ((TUI_CMD_WIN->generic.height + diff) < 1) { int i; for (i = TUI_CMD_WIN->generic.height + diff; (i < 1); i++) if (primary_win_info == first_win) second_win->generic.height--; else first_win->generic.height--; } } if (primary_win_info == first_win) make_invisible_and_set_new_height (first_win, new_height); else make_invisible_and_set_new_height ( first_win, first_win->generic.height); second_win->generic.origin.y = first_win->generic.height - 1; if (primary_win_info == second_win) make_invisible_and_set_new_height (second_win, new_height); else make_invisible_and_set_new_height ( second_win, second_win->generic.height); TUI_CMD_WIN->generic.origin.y = locator->origin.y + 1; if ((TUI_CMD_WIN->generic.height + diff) < 1) make_invisible_and_set_new_height (TUI_CMD_WIN, 1); else make_invisible_and_set_new_height ( TUI_CMD_WIN, TUI_CMD_WIN->generic.height + diff); } make_visible_with_new_height (TUI_CMD_WIN); make_visible_with_new_height (second_win); make_visible_with_new_height (first_win); if (first_win->generic.content_size <= 0) tui_erase_source_content (first_win, EMPTY_SOURCE_PROMPT); if (second_win->generic.content_size <= 0) tui_erase_source_content (second_win, EMPTY_SOURCE_PROMPT); } } } return status; } /* Function make the target window (and auxillary windows associated with the targer) invisible, and set the new height and location. */ static void make_invisible_and_set_new_height (struct tui_win_info *win_info, int height) { int i; struct tui_gen_win_info *gen_win_info; tui_make_invisible (&win_info->generic); win_info->generic.height = height; if (height > 1) win_info->generic.viewport_height = height - 1; else win_info->generic.viewport_height = height; if (win_info != TUI_CMD_WIN) win_info->generic.viewport_height--; /* Now deal with the auxillary windows associated with win_info. */ switch (win_info->generic.type) { case SRC_WIN: case DISASSEM_WIN: gen_win_info = win_info->detail.source_info.execution_info; tui_make_invisible (gen_win_info); gen_win_info->height = height; gen_win_info->origin.y = win_info->generic.origin.y; if (height > 1) gen_win_info->viewport_height = height - 1; else gen_win_info->viewport_height = height; if (win_info != TUI_CMD_WIN) gen_win_info->viewport_height--; if (tui_win_has_locator (win_info)) { gen_win_info = tui_locator_win_info_ptr (); tui_make_invisible (gen_win_info); gen_win_info->origin.y = win_info->generic.origin.y + height; } break; case DATA_WIN: /* Delete all data item windows. */ for (i = 0; i < win_info->generic.content_size; i++) { gen_win_info = (struct tui_gen_win_info *) & ((struct tui_win_element *) win_info->generic.content[i])->which_element.data_window; tui_delete_win (gen_win_info->handle); gen_win_info->handle = (WINDOW *) NULL; } break; default: break; } } /* Function to make the windows with new heights visible. This means re-creating the windows' content since the window had to be destroyed to be made invisible. */ static void make_visible_with_new_height (struct tui_win_info *win_info) { struct symtab *s; tui_make_visible (&win_info->generic); tui_check_and_display_highlight_if_needed (win_info); switch (win_info->generic.type) { case SRC_WIN: case DISASSEM_WIN: tui_free_win_content (win_info->detail.source_info.execution_info); tui_make_visible (win_info->detail.source_info.execution_info); if (win_info->generic.content != NULL) { struct gdbarch *gdbarch = win_info->detail.source_info.gdbarch; struct tui_line_or_address line_or_addr; struct symtab_and_line cursal = get_current_source_symtab_and_line (); line_or_addr = win_info->detail.source_info.start_line_or_addr; tui_free_win_content (&win_info->generic); tui_update_source_window (win_info, gdbarch, cursal.symtab, line_or_addr, TRUE); } else if (deprecated_safe_get_selected_frame () != NULL) { struct tui_line_or_address line; struct symtab_and_line cursal = get_current_source_symtab_and_line (); struct frame_info *frame = deprecated_safe_get_selected_frame (); struct gdbarch *gdbarch = get_frame_arch (frame); s = find_pc_symtab (get_frame_pc (frame)); if (win_info->generic.type == SRC_WIN) { line.loa = LOA_LINE; line.u.line_no = cursal.line; } else { line.loa = LOA_ADDRESS; find_line_pc (s, cursal.line, &line.u.addr); } tui_update_source_window (win_info, gdbarch, s, line, TRUE); } if (tui_win_has_locator (win_info)) { tui_make_visible (tui_locator_win_info_ptr ()); tui_show_locator_content (); } break; case DATA_WIN: tui_display_all_data (); break; case CMD_WIN: win_info->detail.command_info.cur_line = 0; win_info->detail.command_info.curch = 0; wmove (win_info->generic.handle, win_info->detail.command_info.cur_line, win_info->detail.command_info.curch); break; default: break; } } static int new_height_ok (struct tui_win_info *primary_win_info, int new_height) { int ok = (new_height < tui_term_height ()); if (ok) { int diff; enum tui_layout_type cur_layout = tui_current_layout (); diff = (new_height - primary_win_info->generic.height) * (-1); if (cur_layout == SRC_COMMAND || cur_layout == DISASSEM_COMMAND) { ok = ((primary_win_info->generic.type == CMD_WIN && new_height <= (tui_term_height () - 4) && new_height >= MIN_CMD_WIN_HEIGHT) || (primary_win_info->generic.type != CMD_WIN && new_height <= (tui_term_height () - 2) && new_height >= MIN_WIN_HEIGHT)); if (ok) { /* Check the total height. */ struct tui_win_info *win_info; if (primary_win_info == TUI_CMD_WIN) win_info = (tui_source_windows ())->list[0]; else win_info = TUI_CMD_WIN; ok = ((new_height + (win_info->generic.height + diff)) <= tui_term_height ()); } } else { int cur_total_height, total_height, min_height = 0; struct tui_win_info *first_win; struct tui_win_info *second_win; if (cur_layout == SRC_DISASSEM_COMMAND) { first_win = TUI_SRC_WIN; second_win = TUI_DISASM_WIN; } else { first_win = TUI_DATA_WIN; second_win = (tui_source_windows ())->list[0]; } /* We could simply add all the heights to obtain the same result but below is more explicit since we subtract 1 for the line that the first and second windows share, and add one for the locator. */ total_height = cur_total_height = (first_win->generic.height + second_win->generic.height - 1) + TUI_CMD_WIN->generic.height + 1; /* Locator. */ if (primary_win_info == TUI_CMD_WIN) { /* Locator included since first & second win share a line. */ ok = ((first_win->generic.height + second_win->generic.height + diff) >= (MIN_WIN_HEIGHT * 2) && new_height >= MIN_CMD_WIN_HEIGHT); if (ok) { total_height = new_height + (first_win->generic.height + second_win->generic.height + diff); min_height = MIN_CMD_WIN_HEIGHT; } } else { min_height = MIN_WIN_HEIGHT; /* First see if we can increase/decrease the command window. And make sure that the command window is at least 1 line. */ ok = ((TUI_CMD_WIN->generic.height + diff) > 0); if (!ok) { /* Looks like we have to increase/decrease one of the other windows. */ if (primary_win_info == first_win) ok = (second_win->generic.height + diff) >= min_height; else ok = (first_win->generic.height + diff) >= min_height; } if (ok) { if (primary_win_info == first_win) total_height = new_height + second_win->generic.height + TUI_CMD_WIN->generic.height + diff; else total_height = new_height + first_win->generic.height + TUI_CMD_WIN->generic.height + diff; } } /* Now make sure that the proposed total height doesn't exceed the old total height. */ if (ok) ok = (new_height >= min_height && total_height <= cur_total_height); } } return ok; } static void parse_scrolling_args (char *arg, struct tui_win_info **win_to_scroll, int *num_to_scroll) { if (num_to_scroll) *num_to_scroll = 0; *win_to_scroll = tui_win_with_focus (); /* First set up the default window to scroll, in case there is no window name arg. */ if (arg != (char *) NULL) { char *buf, *buf_ptr; /* Process the number of lines to scroll. */ buf = buf_ptr = xstrdup (arg); if (isdigit (*buf_ptr)) { char *num_str; num_str = buf_ptr; buf_ptr = strchr (buf_ptr, ' '); if (buf_ptr != (char *) NULL) { *buf_ptr = (char) 0; if (num_to_scroll) *num_to_scroll = atoi (num_str); buf_ptr++; } else if (num_to_scroll) *num_to_scroll = atoi (num_str); } /* Process the window name if one is specified. */ if (buf_ptr != (char *) NULL) { char *wname; int i; if (*buf_ptr == ' ') while (*(++buf_ptr) == ' ') ; if (*buf_ptr != (char) 0) wname = buf_ptr; else wname = "?"; /* Validate the window name. */ for (i = 0; i < strlen (wname); i++) wname[i] = toupper (wname[i]); *win_to_scroll = tui_partial_win_by_name (wname); if (*win_to_scroll == (struct tui_win_info *) NULL || !(*win_to_scroll)->generic.is_visible) error (_("Invalid window specified. \n\ The window name specified must be valid and visible.\n")); else if (*win_to_scroll == TUI_CMD_WIN) *win_to_scroll = (tui_source_windows ())->list[0]; } xfree (buf); } }
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