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weechat/src/gui/gui-cursor.c

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/*
* gui-cursor.c - functions for free movement of cursor (used by all GUI)
*
* Copyright (C) 2011-2020 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat 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.
*
* WeeChat 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 WeeChat. If not, see <https://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "../core/weechat.h"
#include "gui-cursor.h"
#include "gui-bar.h"
#include "gui-bar-window.h"
#include "gui-buffer.h"
#include "gui-chat.h"
#include "gui-color.h"
#include "gui-focus.h"
#include "gui-input.h"
#include "gui-window.h"
int gui_cursor_mode = 0; /* cursor mode? (free movement) */
int gui_cursor_debug = 0; /* debug mode (0-2) */
int gui_cursor_x = 0; /* position of cursor in cursor mode */
int gui_cursor_y = 0; /* position of cursor in cursor mode */
/*
* Toggles cursor mode.
*/
void
gui_cursor_mode_toggle ()
{
gui_cursor_mode ^= 1;
if (gui_cursor_mode)
{
if (gui_cursor_debug)
gui_input_delete_line (gui_current_window->buffer);
gui_cursor_x = gui_window_cursor_x;
gui_cursor_y = gui_window_cursor_y;
gui_cursor_move_xy (0, 0);
}
else
{
/* restore input (and move cursor in input) */
if (gui_cursor_debug)
gui_input_delete_line (gui_current_window->buffer);
gui_input_text_changed_modifier_and_signal (gui_current_window->buffer,
0, /* save undo */
1); /* stop completion */
gui_buffer_ask_chat_refresh (gui_current_window->buffer, 2);
}
}
/*
* Stops cursor mode.
*/
void
gui_cursor_mode_stop ()
{
if (gui_cursor_mode)
gui_cursor_mode_toggle ();
}
/*
* Sets debug for cursor mode.
*/
void
gui_cursor_debug_set (int debug)
{
gui_cursor_debug = debug;
if (gui_cursor_debug)
{
gui_chat_printf (NULL, _("Debug enabled for cursor mode (%s)"),
(debug > 1) ? _("verbose") : _("normal"));
}
else
gui_chat_printf (NULL, _("Debug disabled for cursor mode"));
}
/*
* Displays debug info about (x,y) in input.
*/
void
gui_cursor_display_debug_info ()
{
struct t_gui_focus_info *focus_info;
char str_info[1024];
if (!gui_cursor_debug)
return;
focus_info = gui_focus_get_info (gui_cursor_x, gui_cursor_y);
if (focus_info)
{
snprintf (str_info, sizeof (str_info),
"%s(%d,%d) window:0x%lx, buffer:0x%lx (%s), "
"bar_window:0x%lx (bar: %s, item: %s, line: %d, col: %d), "
"chat: %d, word: \"%s\"",
gui_color_get_custom ("yellow,red"),
focus_info->x, focus_info->y,
(unsigned long)focus_info->window,
(unsigned long)focus_info->buffer,
(focus_info->buffer) ? (focus_info->buffer)->full_name : "-",
(unsigned long)focus_info->bar_window,
(focus_info->bar_window) ? ((focus_info->bar_window)->bar)->name : "-",
(focus_info->bar_item) ? focus_info->bar_item : "-",
focus_info->bar_item_line,
focus_info->bar_item_col,
focus_info->chat,
focus_info->chat_word);
gui_input_delete_line (gui_current_window->buffer);
gui_input_insert_string (gui_current_window->buffer, str_info, -1);
gui_focus_free_info (focus_info);
}
}
/*
* Sets cursor at position (x,y).
*/
void
gui_cursor_move_xy (int x, int y)
{
if (!gui_cursor_mode)
gui_cursor_mode_toggle ();
gui_cursor_x = x;
gui_cursor_y = y;
if (gui_cursor_x < 0)
gui_cursor_x = 0;
else if (gui_cursor_x > gui_window_get_width () - 1)
gui_cursor_x = gui_window_get_width () - 1;
if (gui_cursor_y < 0)
gui_cursor_y = 0;
else if (gui_cursor_y > gui_window_get_height () - 1)
gui_cursor_y = gui_window_get_height () - 1;
gui_cursor_display_debug_info ();
gui_window_move_cursor ();
}
/*
* Moves cursor by adding values to (x,y).
*/
void
gui_cursor_move_add_xy (int add_x, int add_y)
{
if (!gui_cursor_mode)
gui_cursor_mode_toggle ();
gui_cursor_x += add_x;
gui_cursor_y += add_y;
if (gui_cursor_x < 0)
gui_cursor_x = gui_window_get_width () - 1;
else if (gui_cursor_x > gui_window_get_width () - 1)
gui_cursor_x = 0;
if (gui_cursor_y < 0)
gui_cursor_y = gui_window_get_height () - 1;
else if (gui_cursor_y > gui_window_get_height () - 1)
gui_cursor_y = 0;
gui_cursor_display_debug_info ();
gui_window_move_cursor ();
}
/*
* Moves cursor to another area by adding values to (x,y).
*/
void
gui_cursor_move_area_add_xy (int add_x, int add_y)
{
int x, y, width, height, area_found;
struct t_gui_focus_info *focus_info_old, *focus_info_new;
if (!gui_cursor_mode)
gui_cursor_mode_toggle ();
area_found = 0;
x = gui_cursor_x;
y = gui_cursor_y;
width = gui_window_get_width ();
height = gui_window_get_height ();
focus_info_old = gui_focus_get_info (x, y);
if (!focus_info_old)
return;
focus_info_new = NULL;
if (add_x != 0)
x += add_x;
else
y += add_y;
while ((x >= 0) && (x < width) && (y >= 0) && (y < height))
{
focus_info_new = gui_focus_get_info (x, y);
if (!focus_info_new)
{
gui_focus_free_info (focus_info_old);
return;
}
if (((focus_info_new->window && focus_info_new->chat)
|| focus_info_new->bar_window)
&& ((focus_info_old->window != focus_info_new->window)
|| (focus_info_old->bar_window != focus_info_new->bar_window)))
{
area_found = 1;
break;
}
if (add_x != 0)
x += add_x;
else
y += add_y;
}
if (area_found)
{
if (focus_info_new->window && focus_info_new->chat)
{
x = (focus_info_new->window)->win_chat_x;
y = (focus_info_new->window)->win_chat_y;
}
else if (focus_info_new->bar_window)
{
x = (focus_info_new->bar_window)->x;
y = (focus_info_new->bar_window)->y;
}
else
area_found = 0;
}
if (area_found)
{
gui_cursor_x = x;
gui_cursor_y = y;
gui_cursor_display_debug_info ();
gui_window_move_cursor ();
}
gui_focus_free_info (focus_info_old);
if (focus_info_new)
gui_focus_free_info (focus_info_new);
}
/*
* Moves cursor to another area by name.
*/
void
gui_cursor_move_area (const char *area)
{
int area_found, x, y;
struct t_gui_bar_window *ptr_bar_win;
struct t_gui_bar *ptr_bar;
area_found = 0;
x = 0;
y = 0;
if (strcmp (area, "chat") == 0)
{
area_found = 1;
x = gui_current_window->win_chat_x;
y = gui_current_window->win_chat_y;
}
else
{
for (ptr_bar_win = gui_current_window->bar_windows; ptr_bar_win;
ptr_bar_win = ptr_bar_win->next_bar_window)
{
if (strcmp (ptr_bar_win->bar->name, area) == 0)
{
area_found = 1;
x = ptr_bar_win->x;
y = ptr_bar_win->y;
break;
}
}
if (!area_found)
{
for (ptr_bar = gui_bars; ptr_bar; ptr_bar = ptr_bar->next_bar)
{
if (ptr_bar->bar_window && (strcmp (ptr_bar->name, area) == 0))
{
area_found = 1;
x = ptr_bar->bar_window->x;
y = ptr_bar->bar_window->y;
}
}
}
}
if (area_found)
{
if (!gui_cursor_mode)
gui_cursor_mode_toggle ();
gui_cursor_x = x;
gui_cursor_y = y;
gui_cursor_display_debug_info ();
gui_window_move_cursor ();
}
}
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