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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) 2011-2024 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 "../core/core-hook.h"
#include "../plugins/plugin.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);
}
(void) hook_signal_send (
(gui_cursor_mode) ? "cursor_start" : "cursor_stop",
WEECHAT_HOOK_SIGNAL_STRING,
NULL);
}
/*
* 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:%p, buffer:%p (%s), "
"bar_window:%p (bar: %s, item: %s, line: %d, col: %d), "
"chat: %d, word: \"%s\"",
gui_color_get_custom ("yellow,red"),
focus_info->x, focus_info->y,
focus_info->window,
focus_info->buffer,
(focus_info->buffer) ? (focus_info->buffer)->full_name : "-",
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);
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 the given position: top_left, top_right, bottom_left or
* bottom_right.
*/
void
gui_cursor_move_position (const char *position)
{
struct t_gui_focus_info *focus_info;
int x1, y1, x2, y2, x, y;
if (!position)
return;
if (!gui_cursor_mode)
gui_cursor_mode_toggle ();
x = gui_cursor_x;
y = gui_cursor_y;
focus_info = gui_focus_get_info (x, y);
if (!focus_info)
return;
x1 = -1;
y1 = -1;
x2 = -1;
y2 = -1;
if (focus_info->bar_window)
{
x1 = focus_info->bar_window->x;
y1 = focus_info->bar_window->y;
x2 = x1 + focus_info->bar_window->width - 1;
y2 = y1 + focus_info->bar_window->height - 1;
}
else if (focus_info->chat && focus_info->window)
{
x1 = focus_info->window->win_chat_x;
y1 = focus_info->window->win_chat_y;
x2 = x1 + focus_info->window->win_chat_width - 1;
y2 = y1 + focus_info->window->win_chat_height - 1;
}
if ((x1 < 0) || (y1 < 0) || (x2 < 0) || (y2 < 0))
goto end;
if (strcmp (position, "top_left") == 0)
{
x = x1;
y = y1;
}
else if (strcmp (position, "top_right") == 0)
{
x = x2;
y = y1;
}
else if (strcmp (position, "bottom_left") == 0)
{
x = x1;
y = y2;
}
else if (strcmp (position, "bottom_right") == 0)
{
x = x2;
y = y2;
}
else if (strcmp (position, "edge_top") == 0)
{
y = y1;
}
else if (strcmp (position, "edge_bottom") == 0)
{
y = y2;
}
else if (strcmp (position, "edge_left") == 0)
{
x = x1;
}
else if (strcmp (position, "edge_right") == 0)
{
x = x2;
}
else
{
goto end;
}
gui_cursor_x = x;
gui_cursor_y = y;
gui_cursor_display_debug_info ();
gui_window_move_cursor ();
end:
gui_focus_free_info (focus_info);
}
/*
* 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);
gui_focus_free_info (focus_info_new);
}
/*
* Moves cursor to another area by name.
*
* Parameter "position" can be "top_left", "top_right", "bottom_left" or
* "bottom_right" (if NULL, top left is the default position).
*/
void
gui_cursor_move_area (const char *area, const char *position)
{
int area_found, x1, y1, x2, y2, x, y;
struct t_gui_bar_window *ptr_bar_win;
struct t_gui_bar *ptr_bar;
area_found = 0;
x1 = 0;
y1 = 0;
x2 = 0;
y2 = 0;
if (strcmp (area, "chat") == 0)
{
area_found = 1;
x1 = gui_current_window->win_chat_x;
y1 = gui_current_window->win_chat_y;
x2 = x1 + gui_current_window->win_chat_width - 1;
y2 = y1 + gui_current_window->win_chat_height - 1;
}
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;
x1 = ptr_bar_win->x;
y1 = ptr_bar_win->y;
x2 = x1 + ptr_bar_win->width - 1;
y2 = y1 + ptr_bar_win->height - 1;
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;
x1 = ptr_bar->bar_window->x;
y1 = ptr_bar->bar_window->y;
x2 = x1 + ptr_bar->bar_window->width - 1;
y2 = y1 + ptr_bar->bar_window->height - 1;
}
}
}
}
if (!area_found)
return;
if (!position || (strcmp (position, "top_left") == 0))
{
x = x1;
y = y1;
}
else if (strcmp (position, "top_right") == 0)
{
x = x2;
y = y1;
}
else if (strcmp (position, "bottom_left") == 0)
{
x = x1;
y = y2;
}
else if (strcmp (position, "bottom_right") == 0)
{
x = x2;
y = y2;
}
else
{
x = x1;
y = y1;
}
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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