mutt_window.c File Reference

Window management. More...

#include "config.h"
#include <stdarg.h>
#include <string.h>
#include "mutt/lib.h"
#include "config/lib.h"
#include "core/lib.h"
#include "debug/lib.h"
#include "mutt_window.h"
#include "helpbar/lib.h"
#include "mutt_curses.h"
#include "mutt_globals.h"
#include "mutt_menu.h"
#include "opcodes.h"
#include "options.h"
#include "reflow.h"

Include dependency graph for mutt_window.c:

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Functions
static bool	window_was_visible (struct MuttWindow *win)
	Was the Window visible? More...
static void	window_notify (struct MuttWindow *win)
	Notify observers of changes to a Window. More...
void	window_notify_all (struct MuttWindow *win)
	Notify observers of changes to a Window and its children. More...
void	window_set_visible (struct MuttWindow *win, bool visible)
	Set a Window visible or hidden. More...
struct MuttWindow *	mutt_window_new (enum WindowType type, enum MuttWindowOrientation orient, enum MuttWindowSize size, int cols, int rows)
	Create a new Window. More...
void	mutt_window_free (struct MuttWindow **ptr)
	Free a Window and its children. More...
void	mutt_window_clearline (struct MuttWindow *win, int row)
	Clear a row of a Window. More...
void	mutt_window_clrtoeol (struct MuttWindow *win)
	Clear to the end of the line. More...
static int	mutt_dlg_rootwin_observer (struct NotifyCallback *nc)
	Listen for config changes affecting the Root Window - Implements observer_t. More...
void	mutt_window_free_all (void)
	Free all the default Windows. More...
void	mutt_window_get_coords (struct MuttWindow *win, int *col, int *row)
	Get the cursor position in the Window. More...
void	mutt_window_init (void)
	Create the default Windows. More...
int	mutt_window_move (struct MuttWindow *win, int col, int row)
	Move the cursor in a Window. More...
int	mutt_window_mvaddstr (struct MuttWindow *win, int col, int row, const char *str)
	Move the cursor and write a fixed string to a Window. More...
int	mutt_window_mvprintw (struct MuttWindow *win, int col, int row, const char *fmt,...)
	Move the cursor and write a formatted string to a Window. More...
void	mutt_window_reflow (struct MuttWindow *win)
	Resize a Window and its children. More...
void	mutt_window_reflow_message_rows (int mw_rows)
	Resize the Message Window. More...
int	mutt_window_wrap_cols (int width, short wrap)
	Calculate the wrap column for a given screen width. More...
int	mutt_window_addch (int ch)
	Write one character to a Window. More...
int	mutt_window_addnstr (const char *str, int num)
	Write a partial string to a Window. More...
int	mutt_window_addstr (const char *str)
	Write a string to a Window. More...
void	mutt_window_move_abs (int col, int row)
	Move the cursor to an absolute screen position. More...
int	mutt_window_printf (const char *fmt,...)
	Write a formatted string to a Window. More...
void	mutt_window_add_child (struct MuttWindow *parent, struct MuttWindow *child)
	Add a child to Window. More...
struct MuttWindow *	mutt_window_remove_child (struct MuttWindow *parent, struct MuttWindow *child)
	Remove a child from a Window. More...
void	mutt_winlist_free (struct MuttWindowList *head)
	Free a tree of Windows. More...
void	mutt_window_set_root (int cols, int rows)
	Set the dimensions of the Root Window. More...
bool	mutt_window_is_visible (struct MuttWindow *win)
	Is the Window visible? More...
struct MuttWindow *	mutt_window_find (struct MuttWindow *root, enum WindowType type)
	Find a Window of a given type. More...
static void	window_recalc (struct MuttWindow *win)
	Recalculate a tree of Windows. More...
static void	window_repaint (struct MuttWindow *win, bool force)
	Repaint a tree of Windows. More...
void	window_redraw (struct MuttWindow *win, bool force)
	Reflow, recalc and repaint a tree of Windows. More...
void	window_set_focus (struct MuttWindow *win)
	Set the Window focus. More...
struct MuttWindow *	window_get_focus (void)
	Get the currently focussed Window. More...
void	mutt_window_clear (struct MuttWindow *win)
	Clear a Window. More...

Variables
struct MuttWindow *	RootWindow = NULL
	Parent of all Windows. More...
struct MuttWindow *	AllDialogsWindow = NULL
	Parent of all Dialogs. More...
struct MuttWindow *	MessageWindow = NULL
	Message Window, ":set", etc. More...
static const struct Mapping	EditorHelp []
	Help Bar for the Command Line Editor. More...

Detailed Description

Window management.

Authors

• Richard Russon

Copyright

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 2 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/.

Definition in file mutt_window.c.

Function Documentation

window_was_visible()

static bool window_was_visible ( struct MuttWindow *  win )

static

Was the Window visible?

Parameters

win

Window

Return values

true	If the Window was visible

Using the WindowState old, check if a Window used to be visible. For a Window to be visible, it must have been visible and it's parent and grandparent, etc.

Definition at line 73 of file mutt_window.c.

{
  if (!win)
    return false;

  for (; win; win = win->parent)
  {
    if (!win->old.visible)
      return false;
  }

  return true;
}

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window_notify()

static void window_notify ( struct MuttWindow *  win )

static

Notify observers of changes to a Window.

Parameters

win

Window

Definition at line 91 of file mutt_window.c.

{
  if (!win->notify)
    return;

  const struct WindowState *old = &win->old;
  const struct WindowState *state = &win->state;
  WindowNotifyFlags flags = WN_NO_FLAGS;

  const bool was_visible = window_was_visible(win);
  const bool is_visible = mutt_window_is_visible(win);
  if (was_visible != is_visible)
    flags |= is_visible ? WN_VISIBLE : WN_HIDDEN;

  if ((state->row_offset != old->row_offset) || (state->col_offset != old->col_offset))
    flags |= WN_MOVED;

  if (state->rows > old->rows)
    flags |= WN_TALLER;
  else if (state->rows < old->rows)
    flags |= WN_SHORTER;

  if (state->cols > old->cols)
    flags |= WN_WIDER;
  else if (state->cols < old->cols)
    flags |= WN_NARROWER;

  if (flags == WN_NO_FLAGS)
    return;

  struct EventWindow ev_w = { win, flags };
  notify_send(win->notify, NT_WINDOW, NT_WINDOW_STATE, &ev_w);
}

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window_notify_all()

void window_notify_all

(

struct MuttWindow *

win

)

Notify observers of changes to a Window and its children.

Parameters

win

Window

Definition at line 129 of file mutt_window.c.

{
  if (!win)
    win = RootWindow;

  window_notify(win);

  struct MuttWindow *np = NULL;
  TAILQ_FOREACH(np, &win->children, entries)
  {
    window_notify_all(np);
  }
  win->old = win->state;
}

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window_set_visible()

void window_set_visible	(	struct MuttWindow *	win,
		bool	visible
	)

Set a Window visible or hidden.

Parameters

win	Window
visible	If true, make Window visible, otherwise hidden

Definition at line 149 of file mutt_window.c.

{
  if (!win)
    win = RootWindow;

  win->state.visible = visible;
}

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mutt_window_new()

struct MuttWindow* mutt_window_new	(	enum WindowType	type,
		enum MuttWindowOrientation	orient,
		enum MuttWindowSize	size,
		int	cols,
		int	rows
	)

Create a new Window.

Parameters

type	Window type, e.g. WT_ROOT
orient	Window orientation, e.g. MUTT_WIN_ORIENT_VERTICAL
size	Window size, e.g. MUTT_WIN_SIZE_MAXIMISE
cols	Initial number of columns to allocate, can be MUTT_WIN_SIZE_UNLIMITED
rows	Initial number of rows to allocate, can be MUTT_WIN_SIZE_UNLIMITED

Return values

ptr	New Window

Definition at line 166 of file mutt_window.c.

{
  struct MuttWindow *win = mutt_mem_calloc(1, sizeof(struct MuttWindow));

  win->type = type;
  win->orient = orient;
  win->size = size;
  win->req_rows = rows;
  win->req_cols = cols;
  win->state.visible = true;
  win->notify = notify_new();
  TAILQ_INIT(&win->children);
  return win;
}

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mutt_window_free()

void mutt_window_free

(

struct MuttWindow **

ptr

)

Free a Window and its children.

Parameters

ptr	Window to free

Definition at line 186 of file mutt_window.c.

{
  if (!ptr || !*ptr)
    return;

  struct MuttWindow *win = *ptr;

  if (win->parent && (win->parent->focus == win))
    win->parent->focus = NULL;

  struct EventWindow ev_w = { win, WN_NO_FLAGS };
  notify_send(win->notify, NT_WINDOW, NT_WINDOW_DELETE, &ev_w);

  mutt_winlist_free(&win->children);

  if (win->wdata && win->wdata_free)
    win->wdata_free(win, &win->wdata); // Custom function to free private data

  notify_free(&win->notify);

  FREE(ptr);
}

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mutt_window_clearline()

void mutt_window_clearline	(	struct MuttWindow *	win,
		int	row
	)

Clear a row of a Window.

Parameters

win	Window
row	Row to clear

Definition at line 232 of file mutt_window.c.

{
  mutt_window_move(win, 0, row);
  mutt_window_clrtoeol(win);
}

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mutt_window_clrtoeol()

void mutt_window_clrtoeol

(

struct MuttWindow *

win

)

Clear to the end of the line.

Parameters

win

Window

Note

Assumes the cursor has already been positioned within the window.

Definition at line 244 of file mutt_window.c.

{
  if (!win || !stdscr)
    return;

  if (win->state.col_offset + win->state.cols == COLS)
    clrtoeol();
  else
  {
    int row = 0;
    int col = 0;
    getyx(stdscr, row, col);
    int curcol = col;
    while (curcol < (win->state.col_offset + win->state.cols))
    {
      addch(' ');
      curcol++;
    }
    move(row, col);
  }
}

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mutt_dlg_rootwin_observer()

static int mutt_dlg_rootwin_observer ( struct NotifyCallback *  nc )

static

Listen for config changes affecting the Root Window - Implements observer_t.

Definition at line 269 of file mutt_window.c.

{
  if (!nc->event_data || !nc->global_data)
    return -1;
  if (nc->event_type != NT_CONFIG)
    return 0;

  struct EventConfig *ec = nc->event_data;
  struct MuttWindow *root_win = nc->global_data;

  if (mutt_str_equal(ec->name, "status_on_top"))
  {
    struct MuttWindow *first = TAILQ_FIRST(&root_win->children);
    if (!first)
      return -1;

    if ((C_StatusOnTop && (first->type == WT_HELP_BAR)) ||
        (!C_StatusOnTop && (first->type != WT_HELP_BAR)))
    {
      // Swap the HelpLine and the Dialogs Container
      struct MuttWindow *next = TAILQ_NEXT(first, entries);
      if (!next)
        return -1;
      TAILQ_REMOVE(&root_win->children, next, entries);
      TAILQ_INSERT_HEAD(&root_win->children, next, entries);
    }
  }

  mutt_window_reflow(root_win);
  return 0;
}

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mutt_window_free_all()

void mutt_window_free_all

(

void

)

Free all the default Windows.

Definition at line 304 of file mutt_window.c.

{
  if (NeoMutt)
    notify_observer_remove(NeoMutt->notify, mutt_dlg_rootwin_observer, RootWindow);
  AllDialogsWindow = NULL;
  MessageWindow = NULL;
  mutt_window_free(&RootWindow);
}

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mutt_window_get_coords()

void mutt_window_get_coords	(	struct MuttWindow *	win,
		int *	col,
		int *	row
	)

Get the cursor position in the Window.

Parameters

[in]	win	Window
[out]	col	Column in Window
[out]	row	Row in Window

Assumes the current position is inside the window. Otherwise it will happily return negative or values outside the window boundaries

Definition at line 322 of file mutt_window.c.

{
  int x = 0;
  int y = 0;

  getyx(stdscr, y, x);
  if (col)
    *col = x - win->state.col_offset;
  if (row)
    *row = y - win->state.row_offset;
}

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mutt_window_init()

void mutt_window_init

(

void

)

Create the default Windows.

Create the Help, Index, Status, Message and Sidebar Windows.

Definition at line 339 of file mutt_window.c.

{
  if (RootWindow)
    return;

  RootWindow =
      mutt_window_new(WT_ROOT, MUTT_WIN_ORIENT_VERTICAL, MUTT_WIN_SIZE_FIXED, 0, 0);
  notify_set_parent(RootWindow->notify, NeoMutt->notify);

  struct MuttWindow *win_helpbar = helpbar_create();

  AllDialogsWindow = mutt_window_new(WT_ALL_DIALOGS, MUTT_WIN_ORIENT_VERTICAL,
                                     MUTT_WIN_SIZE_MAXIMISE, MUTT_WIN_SIZE_UNLIMITED,
                                     MUTT_WIN_SIZE_UNLIMITED);

  MessageWindow = mutt_window_new(WT_MESSAGE, MUTT_WIN_ORIENT_VERTICAL,
                                  MUTT_WIN_SIZE_FIXED, MUTT_WIN_SIZE_UNLIMITED, 1);
  MessageWindow->help_data = EditorHelp;
  MessageWindow->help_menu = MENU_EDITOR;

  if (C_StatusOnTop)
  {
    mutt_window_add_child(RootWindow, AllDialogsWindow);
    mutt_window_add_child(RootWindow, win_helpbar);
  }
  else
  {
    mutt_window_add_child(RootWindow, win_helpbar);
    mutt_window_add_child(RootWindow, AllDialogsWindow);
  }

  mutt_window_add_child(RootWindow, MessageWindow);
  notify_observer_add(NeoMutt->notify, NT_CONFIG, mutt_dlg_rootwin_observer, RootWindow);
}

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mutt_window_move()

int mutt_window_move	(	struct MuttWindow *	win,
		int	col,
		int	row
	)

Move the cursor in a Window.

Parameters

win	Window
col	Column to move to
row	Row to move to

Return values

OK	Success
ERR	Error

Definition at line 382 of file mutt_window.c.

{
  return move(win->state.row_offset + row, win->state.col_offset + col);
}

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mutt_window_mvaddstr()

int mutt_window_mvaddstr	(	struct MuttWindow *	win,
		int	col,
		int	row,
		const char *	str
	)

Move the cursor and write a fixed string to a Window.

Parameters

win	Window to write to
col	Column to move to
row	Row to move to
str	String to write

Return values

OK	Success
ERR	Error

Definition at line 396 of file mutt_window.c.

{
#ifdef USE_SLANG_CURSES
  return mvaddstr(win->state.row_offset + row, win->state.col_offset + col, (char *) str);
#else
  return mvaddstr(win->state.row_offset + row, win->state.col_offset + col, str);
#endif
}

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mutt_window_mvprintw()

int mutt_window_mvprintw	(	struct MuttWindow *	win,
		int	col,
		int	row,
		const char *	fmt,
			...
	)

Move the cursor and write a formatted string to a Window.

Parameters

win	Window to write to
col	Column to move to
row	Row to move to
fmt	printf format string
...	printf arguments

Return values

num	Success, characters written
ERR	Error, move failed

Definition at line 415 of file mutt_window.c.

{
  int rc = mutt_window_move(win, col, row);
  if (rc == ERR)
    return rc;

  va_list ap;
  va_start(ap, fmt);
  rc = vw_printw(stdscr, fmt, ap);
  va_end(ap);

  return rc;
}

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mutt_window_reflow()

void mutt_window_reflow

(

struct MuttWindow *

win

)

Resize a Window and its children.

Parameters

win	Window to resize

Definition at line 433 of file mutt_window.c.

{
  if (OptNoCurses)
    return;

  if (!win)
    win = RootWindow;

  mutt_debug(LL_DEBUG2, "entering\n");
  window_reflow(win);
  window_notify_all(win);

  mutt_menu_set_current_redraw_full();
  /* the pager menu needs this flag set to recalc line_info */
  mutt_menu_set_current_redraw(REDRAW_FLOW);
#ifdef USE_DEBUG_WINDOW
  debug_win_dump();
#endif
}

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mutt_window_reflow_message_rows()

void mutt_window_reflow_message_rows

(

int

mw_rows

)

Resize the Message Window.

Parameters

mw_rows

Number of rows required

Resize the other Windows to allow a multi-line message to be displayed.

Definition at line 459 of file mutt_window.c.

{
  MessageWindow->req_rows = mw_rows;
  mutt_window_reflow(MessageWindow->parent);

  /* We don't also set REDRAW_FLOW because this function only
   * changes rows and is a temporary adjustment. */
  mutt_menu_set_current_redraw_full();
}

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mutt_window_wrap_cols()

int mutt_window_wrap_cols	(	int	width,
		short	wrap
	)

Calculate the wrap column for a given screen width.

Parameters

width	Screen width
wrap	Wrap config

Return values

num	Column that text should be wrapped at

The wrap variable can be negative, meaning there should be a right margin.

Definition at line 477 of file mutt_window.c.

{
  if (wrap < 0)
    return (width > -wrap) ? (width + wrap) : width;
  if (wrap)
    return (wrap < width) ? wrap : width;
  return width;
}

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mutt_window_addch()

int mutt_window_addch

(

int

ch

)

Write one character to a Window.

Parameters

ch	Character to write

Return values

0	Success
-1	Error

Definition at line 492 of file mutt_window.c.

{
  return addch(ch);
}

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mutt_window_addnstr()

int mutt_window_addnstr	(	const char *	str,
		int	num
	)

Write a partial string to a Window.

Parameters

str	String
num	Maximum number of characters to write

Return values

0	Success
-1	Error

Definition at line 504 of file mutt_window.c.

{
  if (!str)
    return -1;

#ifdef USE_SLANG_CURSES
  return addnstr((char *) str, num);
#else
  return addnstr(str, num);
#endif
}

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mutt_window_addstr()

int mutt_window_addstr

(

const char *

str

)

Write a string to a Window.

Parameters

str

String

Return values

0	Success
-1	Error

Definition at line 522 of file mutt_window.c.

{
  if (!str)
    return -1;

#ifdef USE_SLANG_CURSES
  return addstr((char *) str);
#else
  return addstr(str);
#endif
}

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mutt_window_move_abs()

void mutt_window_move_abs	(	int	col,
		int	row
	)

Move the cursor to an absolute screen position.

Parameters

col	Screen column (0-based)
row	Screen row (0-based)

Definition at line 539 of file mutt_window.c.

{
  move(row, col);
}

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mutt_window_printf()

int mutt_window_printf	(	const char *	fmt,
			...
	)

Write a formatted string to a Window.

Parameters

fmt	Format string
...	Arguments

Return values

num	Number of characters written

Definition at line 550 of file mutt_window.c.

{
  va_list ap;
  va_start(ap, fmt);
  int rc = vw_printw(stdscr, fmt, ap);
  va_end(ap);

  return rc;
}

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mutt_window_add_child()

void mutt_window_add_child	(	struct MuttWindow *	parent,
		struct MuttWindow *	child
	)

Add a child to Window.

Parameters

parent	Window to add to
child	Window to add

Definition at line 565 of file mutt_window.c.

{
  if (!parent || !child)
    return;

  TAILQ_INSERT_TAIL(&parent->children, child, entries);
  child->parent = parent;

  notify_set_parent(child->notify, parent->notify);

  struct EventWindow ev_w = { child, WN_NO_FLAGS };
  notify_send(child->notify, NT_WINDOW, NT_WINDOW_NEW, &ev_w);
}

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mutt_window_remove_child()

struct MuttWindow* mutt_window_remove_child	(	struct MuttWindow *	parent,
		struct MuttWindow *	child
	)

Remove a child from a Window.

Parameters

parent	Window to remove from
child	Window to remove

Definition at line 584 of file mutt_window.c.

{
  if (!parent || !child)
    return NULL;

  struct EventWindow ev_w = { child, WN_NO_FLAGS };
  notify_send(child->notify, NT_WINDOW, NT_WINDOW_DELETE, &ev_w);

  TAILQ_REMOVE(&parent->children, child, entries);
  child->parent = NULL;

  notify_set_parent(child->notify, NULL);

  return child;
}

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mutt_winlist_free()

void mutt_winlist_free

(

struct MuttWindowList *

head

)

Free a tree of Windows.

Parameters

head	WindowList to free

Definition at line 604 of file mutt_window.c.

{
  if (!head)
    return;

  struct MuttWindow *np = NULL;
  struct MuttWindow *tmp = NULL;
  TAILQ_FOREACH_SAFE(np, head, entries, tmp)
  {
    TAILQ_REMOVE(head, np, entries);
    mutt_winlist_free(&np->children);
    mutt_window_free(&np);
  }
}

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mutt_window_set_root()

void mutt_window_set_root	(	int	cols,
		int	rows
	)

Set the dimensions of the Root Window.

Parameters

rows
cols

Definition at line 624 of file mutt_window.c.

{
  if (!RootWindow)
    return;

  bool changed = false;

  if (RootWindow->state.rows != rows)
  {
    RootWindow->state.rows = rows;
    changed = true;
  }

  if (RootWindow->state.cols != cols)
  {
    RootWindow->state.cols = cols;
    changed = true;
  }

  if (changed)
  {
    mutt_window_reflow(RootWindow);
  }
}

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mutt_window_is_visible()

bool mutt_window_is_visible

(

struct MuttWindow *

win

)

Is the Window visible?

Parameters

win

Window

Return values

true	If the Window is visible

For a Window to be visible, it must be visible and it's parent and grandparent, etc.

Definition at line 657 of file mutt_window.c.

{
  if (!win)
    return false;

  for (; win; win = win->parent)
  {
    if (!win->state.visible)
      return false;
  }

  return true;
}

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mutt_window_find()

struct MuttWindow* mutt_window_find	(	struct MuttWindow *	root,
		enum WindowType	type
	)

Find a Window of a given type.

Parameters

root	Window to start searching
type	Window type to find, e.g. WT_INDEX_BAR

Return values

ptr	Matching Window
NULL	No match

Definition at line 678 of file mutt_window.c.

{
  if (!root)
    return NULL;
  if (root->type == type)
    return root;

  struct MuttWindow *np = NULL;
  struct MuttWindow *match = NULL;
  TAILQ_FOREACH(np, &root->children, entries)
  {
    match = mutt_window_find(np, type);
    if (match)
      return match;
  }

  return NULL;
}

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window_recalc()

static void window_recalc ( struct MuttWindow *  win )

static

Recalculate a tree of Windows.

Parameters

win	Window to start at

Definition at line 701 of file mutt_window.c.

{
  if (!win)
    return;

  if (win->recalc)
  {
    win->recalc(win);
    win->actions &= ~WA_RECALC;
  }

  struct MuttWindow *np = NULL;
  TAILQ_FOREACH(np, &win->children, entries)
  {
    window_recalc(np);
  }
}

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window_repaint()

static void window_repaint ( struct MuttWindow *  win, bool  force  )

static

Repaint a tree of Windows.

Parameters

win	Window to start at
force	Repaint everything

Definition at line 724 of file mutt_window.c.

{
  if (!win)
    return;

  if (win->repaint && (force || (win->actions & WA_REPAINT)))
  {
    win->repaint(win);
    win->actions &= ~WA_REPAINT;
  }

  struct MuttWindow *np = NULL;
  TAILQ_FOREACH(np, &win->children, entries)
  {
    window_repaint(np, force);
  }
}

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window_redraw()

void window_redraw	(	struct MuttWindow *	win,
		bool	force
	)

Reflow, recalc and repaint a tree of Windows.

Parameters

win	Window to start at
force	Repaint everything

Definition at line 747 of file mutt_window.c.

{
  if (!win)
    return;

  window_reflow(win);
  window_notify_all(win);

  window_recalc(win);
  window_repaint(win, force);
}

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window_set_focus()

void window_set_focus

(

struct MuttWindow *

win

)

Set the Window focus.

Parameters

win	Window to focus

Definition at line 763 of file mutt_window.c.

{
  if (!win)
    return;

  struct MuttWindow *parent = win->parent;
  struct MuttWindow *child = win;

  // Set the chain of focus, all the way to the root
  for (; parent; child = parent, parent = parent->parent)
    parent->focus = child;

  // Find the most focussed Window
  while (win && win->focus)
    win = win->focus;

  struct EventWindow ev_w = { win, WN_NO_FLAGS };
  notify_send(win->notify, NT_WINDOW, NT_WINDOW_FOCUS, &ev_w);
#ifdef USE_DEBUG_WINDOW
  debug_win_dump();
#endif
}

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window_get_focus()

struct MuttWindow* window_get_focus

(

void

)

Get the currently focussed Window.

Return values

ptr	Window with focus

Definition at line 790 of file mutt_window.c.

{
  struct MuttWindow *win = RootWindow;

  while (win && win->focus)
    win = win->focus;

  return win;
}

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mutt_window_clear()

void mutt_window_clear

(

struct MuttWindow *

win

)

Clear a Window.

Parameters

win

Window

If the Window isn't visible, it won't be cleared.

Definition at line 806 of file mutt_window.c.

{
  if (!mutt_window_is_visible(win))
    return;

  for (int i = 0; i < win->state.rows; i++)
    mutt_window_clearline(win, i);
}

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Variable Documentation

RootWindow

struct MuttWindow* RootWindow = NULL

Parent of all Windows.

Definition at line 45 of file mutt_window.c.

AllDialogsWindow

struct MuttWindow* AllDialogsWindow = NULL

Parent of all Dialogs.

Definition at line 46 of file mutt_window.c.

MessageWindow

struct MuttWindow* MessageWindow = NULL

Message Window, ":set", etc.

Definition at line 47 of file mutt_window.c.

EditorHelp

const struct Mapping EditorHelp[]

static

Initial value:

= {
  
  { N_("Complete"),    OP_EDITOR_COMPLETE },
  { N_("Hist Up"),     OP_EDITOR_HISTORY_UP },
  { N_("Hist Down"),   OP_EDITOR_HISTORY_DOWN },
  { N_("Hist Search"), OP_EDITOR_HISTORY_SEARCH },
  { N_("Begin Line"),  OP_EDITOR_BOL },
  { N_("End Line"),    OP_EDITOR_EOL },
  { N_("Kill Line"),   OP_EDITOR_KILL_LINE },
  { N_("Kill Word"),   OP_EDITOR_KILL_WORD },
  { NULL, 0 },
  
}

Help Bar for the Command Line Editor.

Definition at line 50 of file mutt_window.c.