w32fns.c 401 KB
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/* Graphical user interface functions for the Microsoft W32 API.
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   Copyright (C) 1989, 92, 93, 94, 95, 1996, 1997, 1998, 1999, 2000, 2001
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     Free Software Foundation, Inc.
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This file is part of GNU Emacs.

GNU Emacs 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, or (at your option)
any later version.

GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */
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/* Added by Kevin Gallo */

#include <config.h>
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#include <signal.h>
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#include <stdio.h>
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#include <limits.h>
#include <errno.h>
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#include "lisp.h"
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#include "charset.h"
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#include "dispextern.h"
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#include "w32term.h"
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#include "keyboard.h"
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#include "frame.h"
#include "window.h"
#include "buffer.h"
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#include "fontset.h"
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#include "intervals.h"
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#include "blockinput.h"
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#include "epaths.h"
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#include "w32heap.h"
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#include "termhooks.h"
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#include "coding.h"
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#include "ccl.h"
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#include "systime.h"

#include "bitmaps/gray.xbm"
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#include <commdlg.h>
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#include <shellapi.h>
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#include <ctype.h>
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#include <dlgs.h>
#define FILE_NAME_TEXT_FIELD edt1

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void syms_of_w32fns ();
void globals_of_w32fns ();
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static void init_external_image_libraries ();
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extern void free_frame_menubar ();
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extern double atof ();
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extern int w32_console_toggle_lock_key P_ ((int, Lisp_Object));
extern void w32_menu_display_help P_ ((HWND, HMENU, UINT, UINT));
extern void w32_free_menu_strings P_ ((HWND));

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extern int quit_char;
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extern char *lispy_function_keys[];

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/* The gray bitmap `bitmaps/gray'.  This is done because w32term.c uses
   it, and including `bitmaps/gray' more than once is a problem when
   config.h defines `static' as an empty replacement string.  */

int gray_bitmap_width = gray_width;
int gray_bitmap_height = gray_height;
unsigned char *gray_bitmap_bits = gray_bits;

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/* The colormap for converting color names to RGB values */
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Lisp_Object Vw32_color_map;
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/* Non nil if alt key presses are passed on to Windows.  */
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Lisp_Object Vw32_pass_alt_to_system;
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/* Non nil if alt key is translated to meta_modifier, nil if it is translated
   to alt_modifier.  */
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Lisp_Object Vw32_alt_is_meta;
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/* If non-zero, the windows virtual key code for an alternative quit key. */
Lisp_Object Vw32_quit_key;

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/* Non nil if left window key events are passed on to Windows (this only
   affects whether "tapping" the key opens the Start menu).  */
Lisp_Object Vw32_pass_lwindow_to_system;

/* Non nil if right window key events are passed on to Windows (this
   only affects whether "tapping" the key opens the Start menu).  */
Lisp_Object Vw32_pass_rwindow_to_system;

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/* Virtual key code used to generate "phantom" key presses in order
   to stop system from acting on Windows key events.  */
Lisp_Object Vw32_phantom_key_code;

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/* Modifier associated with the left "Windows" key, or nil to act as a
   normal key.  */
Lisp_Object Vw32_lwindow_modifier;

/* Modifier associated with the right "Windows" key, or nil to act as a
   normal key.  */
Lisp_Object Vw32_rwindow_modifier;

/* Modifier associated with the "Apps" key, or nil to act as a normal
   key.  */
Lisp_Object Vw32_apps_modifier;

/* Value is nil if Num Lock acts as a function key.  */
Lisp_Object Vw32_enable_num_lock;

/* Value is nil if Caps Lock acts as a function key.  */
Lisp_Object Vw32_enable_caps_lock;

/* Modifier associated with Scroll Lock, or nil to act as a normal key.  */
Lisp_Object Vw32_scroll_lock_modifier;
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/* Switch to control whether we inhibit requests for synthesized bold
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   and italic versions of fonts.  */
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int w32_enable_synthesized_fonts;
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/* Enable palette management. */
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Lisp_Object Vw32_enable_palette;
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/* Control how close left/right button down events must be to
   be converted to a middle button down event. */
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Lisp_Object Vw32_mouse_button_tolerance;
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/* Minimum interval between mouse movement (and scroll bar drag)
   events that are passed on to the event loop. */
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Lisp_Object Vw32_mouse_move_interval;
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/* Flag to indicate if XBUTTON events should be passed on to Windows.  */
int w32_pass_extra_mouse_buttons_to_system;

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/* Non nil if no window manager is in use.  */
Lisp_Object Vx_no_window_manager;

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/* Non-zero means we're allowed to display a hourglass pointer.  */
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int display_hourglass_p;
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/* The background and shape of the mouse pointer, and shape when not
   over text or in the modeline.  */
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Lisp_Object Vx_pointer_shape, Vx_nontext_pointer_shape, Vx_mode_pointer_shape;
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Lisp_Object Vx_hourglass_pointer_shape, Vx_window_horizontal_drag_shape, Vx_hand_shape;
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/* The shape when over mouse-sensitive text.  */
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Lisp_Object Vx_sensitive_text_pointer_shape;

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#ifndef IDC_HAND
#define IDC_HAND MAKEINTRESOURCE(32649)
#endif

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/* Color of chars displayed in cursor box.  */
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Lisp_Object Vx_cursor_fore_pixel;

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/* Nonzero if using Windows.  */
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static int w32_in_use;

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/* Search path for bitmap files.  */
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Lisp_Object Vx_bitmap_file_path;

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/* Regexp matching a font name whose width is the same as `PIXEL_SIZE'.  */
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Lisp_Object Vx_pixel_size_width_font_regexp;

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/* Alist of bdf fonts and the files that define them.  */
Lisp_Object Vw32_bdf_filename_alist;

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/* A flag to control whether fonts are matched strictly or not.  */
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int w32_strict_fontnames;

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/* A flag to control whether we should only repaint if GetUpdateRect
   indicates there is an update region.  */
int w32_strict_painting;

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/* Associative list linking character set strings to Windows codepages. */
Lisp_Object Vw32_charset_info_alist;

/* VIETNAMESE_CHARSET is not defined in some versions of MSVC.  */
#ifndef VIETNAMESE_CHARSET
#define VIETNAMESE_CHARSET 163
#endif

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Lisp_Object Qnone;
Lisp_Object Qsuppress_icon;
Lisp_Object Qundefined_color;
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Lisp_Object Qcenter;
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Lisp_Object Qcancel_timer;
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Lisp_Object Qhyper;
Lisp_Object Qsuper;
Lisp_Object Qmeta;
Lisp_Object Qalt;
Lisp_Object Qctrl;
Lisp_Object Qcontrol;
Lisp_Object Qshift;

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Lisp_Object Qw32_charset_ansi;
Lisp_Object Qw32_charset_default;
Lisp_Object Qw32_charset_symbol;
Lisp_Object Qw32_charset_shiftjis;
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Lisp_Object Qw32_charset_hangeul;
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Lisp_Object Qw32_charset_gb2312;
Lisp_Object Qw32_charset_chinesebig5;
Lisp_Object Qw32_charset_oem;

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#ifndef JOHAB_CHARSET
#define JOHAB_CHARSET 130
#endif
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#ifdef JOHAB_CHARSET
Lisp_Object Qw32_charset_easteurope;
Lisp_Object Qw32_charset_turkish;
Lisp_Object Qw32_charset_baltic;
Lisp_Object Qw32_charset_russian;
Lisp_Object Qw32_charset_arabic;
Lisp_Object Qw32_charset_greek;
Lisp_Object Qw32_charset_hebrew;
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Lisp_Object Qw32_charset_vietnamese;
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Lisp_Object Qw32_charset_thai;
Lisp_Object Qw32_charset_johab;
Lisp_Object Qw32_charset_mac;
#endif

#ifdef UNICODE_CHARSET
Lisp_Object Qw32_charset_unicode;
#endif

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/* State variables for emulating a three button mouse. */
#define LMOUSE 1
#define MMOUSE 2
#define RMOUSE 4

static int button_state = 0;
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static W32Msg saved_mouse_button_msg;
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static unsigned mouse_button_timer = 0;	/* non-zero when timer is active */
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static W32Msg saved_mouse_move_msg;
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static unsigned mouse_move_timer = 0;
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/* Window that is tracking the mouse.  */
static HWND track_mouse_window;
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typedef BOOL (WINAPI * TrackMouseEvent_Proc) (
    IN OUT LPTRACKMOUSEEVENT lpEventTrack
    );

TrackMouseEvent_Proc track_mouse_event_fn=NULL;
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/* W95 mousewheel handler */
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unsigned int msh_mousewheel = 0;
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/* Timers */
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#define MOUSE_BUTTON_ID	1
#define MOUSE_MOVE_ID	2
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#define MENU_FREE_ID 3
/* The delay (milliseconds) before a menu is freed after WM_EXITMENULOOP
   is received.  */
#define MENU_FREE_DELAY 1000
static unsigned menu_free_timer = 0;
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/* The below are defined in frame.c.  */
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extern Lisp_Object Vwindow_system_version;

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#ifdef GLYPH_DEBUG
int image_cache_refcount, dpyinfo_refcount;
#endif


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/* From w32term.c. */
extern Lisp_Object Vw32_num_mouse_buttons;
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extern Lisp_Object Vw32_recognize_altgr;
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extern HWND w32_system_caret_hwnd;
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extern int w32_system_caret_height;
extern int w32_system_caret_x;
extern int w32_system_caret_y;
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extern int w32_use_visible_system_caret;

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static HWND w32_visible_system_caret_hwnd;
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/* Error if we are not connected to MS-Windows.  */
void
check_w32 ()
{
  if (! w32_in_use)
    error ("MS-Windows not in use or not initialized");
}

/* Nonzero if we can use mouse menus.
   You should not call this unless HAVE_MENUS is defined.  */
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int
have_menus_p ()
{
  return w32_in_use;
}

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/* Extract a frame as a FRAME_PTR, defaulting to the selected frame
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   and checking validity for W32.  */
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FRAME_PTR
check_x_frame (frame)
     Lisp_Object frame;
{
  FRAME_PTR f;

  if (NILP (frame))
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    frame = selected_frame;
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  CHECK_LIVE_FRAME (frame);
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  f = XFRAME (frame);
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  if (! FRAME_W32_P (f))
    error ("non-w32 frame used");
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  return f;
}

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/* Let the user specify a display with a frame.
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   nil stands for the selected frame--or, if that is not a w32 frame,
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   the first display on the list.  */

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struct w32_display_info *
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check_x_display_info (frame)
     Lisp_Object frame;
{
  if (NILP (frame))
    {
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      struct frame *sf = XFRAME (selected_frame);
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      if (FRAME_W32_P (sf) && FRAME_LIVE_P (sf))
	return FRAME_W32_DISPLAY_INFO (sf);
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      else
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	return &one_w32_display_info;
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    }
  else if (STRINGP (frame))
    return x_display_info_for_name (frame);
  else
    {
      FRAME_PTR f;

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      CHECK_LIVE_FRAME (frame);
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      f = XFRAME (frame);
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      if (! FRAME_W32_P (f))
	error ("non-w32 frame used");
      return FRAME_W32_DISPLAY_INFO (f);
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    }
}

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/* Return the Emacs frame-object corresponding to an w32 window.
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   It could be the frame's main window or an icon window.  */

/* This function can be called during GC, so use GC_xxx type test macros.  */

struct frame *
x_window_to_frame (dpyinfo, wdesc)
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     struct w32_display_info *dpyinfo;
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     HWND wdesc;
{
  Lisp_Object tail, frame;
  struct frame *f;

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  for (tail = Vframe_list; GC_CONSP (tail); tail = XCDR (tail))
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    {
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      frame = XCAR (tail);
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      if (!GC_FRAMEP (frame))
        continue;
      f = XFRAME (frame);
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      if (!FRAME_W32_P (f) || FRAME_W32_DISPLAY_INFO (f) != dpyinfo)
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	continue;
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      if (f->output_data.w32->hourglass_window == wdesc)
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        return f;

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      if (FRAME_W32_WINDOW (f) == wdesc)
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        return f;
    }
  return 0;
}



/* Code to deal with bitmaps.  Bitmaps are referenced by their bitmap
   id, which is just an int that this section returns.  Bitmaps are
   reference counted so they can be shared among frames.

   Bitmap indices are guaranteed to be > 0, so a negative number can
   be used to indicate no bitmap.

   If you use x_create_bitmap_from_data, then you must keep track of
   the bitmaps yourself.  That is, creating a bitmap from the same
   data more than once will not be caught.  */


/* Functions to access the contents of a bitmap, given an id.  */

int
x_bitmap_height (f, id)
     FRAME_PTR f;
     int id;
{
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  return FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].height;
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}

int
x_bitmap_width (f, id)
     FRAME_PTR f;
     int id;
{
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  return FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].width;
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}

int
x_bitmap_pixmap (f, id)
     FRAME_PTR f;
     int id;
{
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  return (int) FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].pixmap;
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}


/* Allocate a new bitmap record.  Returns index of new record.  */

static int
x_allocate_bitmap_record (f)
     FRAME_PTR f;
{
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  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
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  int i;

  if (dpyinfo->bitmaps == NULL)
    {
      dpyinfo->bitmaps_size = 10;
      dpyinfo->bitmaps
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	= (struct w32_bitmap_record *) xmalloc (dpyinfo->bitmaps_size * sizeof (struct w32_bitmap_record));
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      dpyinfo->bitmaps_last = 1;
      return 1;
    }

  if (dpyinfo->bitmaps_last < dpyinfo->bitmaps_size)
    return ++dpyinfo->bitmaps_last;

  for (i = 0; i < dpyinfo->bitmaps_size; ++i)
    if (dpyinfo->bitmaps[i].refcount == 0)
      return i + 1;

  dpyinfo->bitmaps_size *= 2;
  dpyinfo->bitmaps
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    = (struct w32_bitmap_record *) xrealloc (dpyinfo->bitmaps,
					   dpyinfo->bitmaps_size * sizeof (struct w32_bitmap_record));
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  return ++dpyinfo->bitmaps_last;
}

/* Add one reference to the reference count of the bitmap with id ID.  */

void
x_reference_bitmap (f, id)
     FRAME_PTR f;
     int id;
{
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  ++FRAME_W32_DISPLAY_INFO (f)->bitmaps[id - 1].refcount;
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}

/* Create a bitmap for frame F from a HEIGHT x WIDTH array of bits at BITS.  */

int
x_create_bitmap_from_data (f, bits, width, height)
     struct frame *f;
     char *bits;
     unsigned int width, height;
{
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  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
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  Pixmap bitmap;
  int id;

  bitmap = CreateBitmap (width, height,
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			 FRAME_W32_DISPLAY_INFO (XFRAME (frame))->n_planes,
			 FRAME_W32_DISPLAY_INFO (XFRAME (frame))->n_cbits,
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			 bits);

  if (! bitmap)
    return -1;

  id = x_allocate_bitmap_record (f);
  dpyinfo->bitmaps[id - 1].pixmap = bitmap;
  dpyinfo->bitmaps[id - 1].file = NULL;
  dpyinfo->bitmaps[id - 1].hinst = NULL;
  dpyinfo->bitmaps[id - 1].refcount = 1;
  dpyinfo->bitmaps[id - 1].depth = 1;
  dpyinfo->bitmaps[id - 1].height = height;
  dpyinfo->bitmaps[id - 1].width = width;

  return id;
}

/* Create bitmap from file FILE for frame F.  */

int
x_create_bitmap_from_file (f, file)
     struct frame *f;
     Lisp_Object file;
{
  return -1;
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#if 0 /* TODO : bitmap support */
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  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
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  unsigned int width, height;
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  HBITMAP bitmap;
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  int xhot, yhot, result, id;
  Lisp_Object found;
  int fd;
  char *filename;
  HINSTANCE hinst;

  /* Look for an existing bitmap with the same name.  */
  for (id = 0; id < dpyinfo->bitmaps_last; ++id)
    {
      if (dpyinfo->bitmaps[id].refcount
	  && dpyinfo->bitmaps[id].file
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	  && !strcmp (dpyinfo->bitmaps[id].file, (char *) SDATA (file)))
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	{
	  ++dpyinfo->bitmaps[id].refcount;
	  return id + 1;
	}
    }

  /* Search bitmap-file-path for the file, if appropriate.  */
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  fd = openp (Vx_bitmap_file_path, file, Qnil, &found, Qnil);
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  if (fd < 0)
    return -1;
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  emacs_close (fd);
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  filename = (char *) SDATA (found);
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  hinst = LoadLibraryEx (filename, NULL, LOAD_LIBRARY_AS_DATAFILE);

  if (hinst == NULL)
      return -1;

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  result = XReadBitmapFile (FRAME_W32_DISPLAY (f), FRAME_W32_WINDOW (f),
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			    filename, &width, &height, &bitmap, &xhot, &yhot);
  if (result != BitmapSuccess)
    return -1;

  id = x_allocate_bitmap_record (f);
  dpyinfo->bitmaps[id - 1].pixmap = bitmap;
  dpyinfo->bitmaps[id - 1].refcount = 1;
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  dpyinfo->bitmaps[id - 1].file = (char *) xmalloc (SCHARS (file) + 1);
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  dpyinfo->bitmaps[id - 1].depth = 1;
  dpyinfo->bitmaps[id - 1].height = height;
  dpyinfo->bitmaps[id - 1].width = width;
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  strcpy (dpyinfo->bitmaps[id - 1].file, SDATA (file));
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  return id;
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#endif  /* TODO */
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}

/* Remove reference to bitmap with id number ID.  */

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void
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x_destroy_bitmap (f, id)
     FRAME_PTR f;
     int id;
{
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  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
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  if (id > 0)
    {
      --dpyinfo->bitmaps[id - 1].refcount;
      if (dpyinfo->bitmaps[id - 1].refcount == 0)
	{
	  BLOCK_INPUT;
	  DeleteObject (dpyinfo->bitmaps[id - 1].pixmap);
	  if (dpyinfo->bitmaps[id - 1].file)
	    {
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	      xfree (dpyinfo->bitmaps[id - 1].file);
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	      dpyinfo->bitmaps[id - 1].file = NULL;
	    }
	  UNBLOCK_INPUT;
	}
    }
}

/* Free all the bitmaps for the display specified by DPYINFO.  */

static void
x_destroy_all_bitmaps (dpyinfo)
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     struct w32_display_info *dpyinfo;
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{
  int i;
  for (i = 0; i < dpyinfo->bitmaps_last; i++)
    if (dpyinfo->bitmaps[i].refcount > 0)
      {
	DeleteObject (dpyinfo->bitmaps[i].pixmap);
	if (dpyinfo->bitmaps[i].file)
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	  xfree (dpyinfo->bitmaps[i].file);
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      }
  dpyinfo->bitmaps_last = 0;
}

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BOOL my_show_window P_ ((struct frame *, HWND, int));
void my_set_window_pos P_ ((HWND, HWND, int, int, int, int, UINT));
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static Lisp_Object unwind_create_frame P_ ((Lisp_Object));
static Lisp_Object unwind_create_tip_frame P_ ((Lisp_Object));
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/* TODO: Native Input Method support; see x_create_im.  */
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void x_set_foreground_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_background_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_mouse_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_cursor_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_border_color P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_cursor_type P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_icon_type P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_icon_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_explicitly_set_name P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_menu_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_title P_ ((struct frame *, Lisp_Object, Lisp_Object));
void x_set_tool_bar_lines P_ ((struct frame *, Lisp_Object, Lisp_Object));
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static void x_edge_detection P_ ((struct frame *, struct image *, Lisp_Object,
				  Lisp_Object));
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/* Store the screen positions of frame F into XPTR and YPTR.
   These are the positions of the containing window manager window,
   not Emacs's own window.  */

void
x_real_positions (f, xptr, yptr)
     FRAME_PTR f;
     int *xptr, *yptr;
{
  POINT pt;
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  RECT rect;
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  GetClientRect(FRAME_W32_WINDOW(f), &rect);
  AdjustWindowRect(&rect, f->output_data.w32->dwStyle, FRAME_EXTERNAL_MENU_BAR(f));

  pt.x = rect.left;
  pt.y = rect.top;
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  ClientToScreen (FRAME_W32_WINDOW(f), &pt);
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  /* Remember x_pixels_diff and y_pixels_diff.  */
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  f->x_pixels_diff = pt.x - rect.left;
  f->y_pixels_diff = pt.y - rect.top;
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  *xptr = pt.x;
  *yptr = pt.y;
}



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DEFUN ("w32-define-rgb-color", Fw32_define_rgb_color,
       Sw32_define_rgb_color, 4, 4, 0,
       doc: /* Convert RGB numbers to a windows color reference and associate with NAME.
This adds or updates a named color to w32-color-map, making it
available for use.  The original entry's RGB ref is returned, or nil
if the entry is new.  */)
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    (red, green, blue, name)
    Lisp_Object red, green, blue, name;
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{
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  Lisp_Object rgb;
  Lisp_Object oldrgb = Qnil;
  Lisp_Object entry;

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  CHECK_NUMBER (red);
  CHECK_NUMBER (green);
  CHECK_NUMBER (blue);
  CHECK_STRING (name);
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  XSET (rgb, Lisp_Int, RGB(XUINT (red), XUINT (green), XUINT (blue)));
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  BLOCK_INPUT;
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  /* replace existing entry in w32-color-map or add new entry. */
  entry = Fassoc (name, Vw32_color_map);
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  if (NILP (entry))
    {
      entry = Fcons (name, rgb);
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      Vw32_color_map = Fcons (entry, Vw32_color_map);
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    }
  else
    {
      oldrgb = Fcdr (entry);
      Fsetcdr (entry, rgb);
    }

  UNBLOCK_INPUT;

  return (oldrgb);
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}

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DEFUN ("w32-load-color-file", Fw32_load_color_file,
       Sw32_load_color_file, 1, 1, 0,
       doc: /* Create an alist of color entries from an external file.
Assign this value to w32-color-map to replace the existing color map.

The file should define one named RGB color per line like so:
  R G B   name
where R,G,B are numbers between 0 and 255 and name is an arbitrary string.  */)
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    (filename)
    Lisp_Object filename;
{
  FILE *fp;
  Lisp_Object cmap = Qnil;
  Lisp_Object abspath;

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  CHECK_STRING (filename);
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  abspath = Fexpand_file_name (filename, Qnil);

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  fp = fopen (SDATA (filename), "rt");
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  if (fp)
    {
      char buf[512];
      int red, green, blue;
      int num;

      BLOCK_INPUT;

      while (fgets (buf, sizeof (buf), fp) != NULL) {
	if (sscanf (buf, "%u %u %u %n", &red, &green, &blue, &num) == 3)
	  {
	    char *name = buf + num;
	    num = strlen (name) - 1;
	    if (name[num] == '\n')
	      name[num] = 0;
	    cmap = Fcons (Fcons (build_string (name),
				 make_number (RGB (red, green, blue))),
			  cmap);
	  }
      }
      fclose (fp);

      UNBLOCK_INPUT;
    }

  return cmap;
}
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/* The default colors for the w32 color map */
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typedef struct colormap_t
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{
  char *name;
  COLORREF colorref;
} colormap_t;

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colormap_t w32_color_map[] =
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{
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  {"snow"                      , PALETTERGB (255,250,250)},
  {"ghost white"               , PALETTERGB (248,248,255)},
  {"GhostWhite"                , PALETTERGB (248,248,255)},
  {"white smoke"               , PALETTERGB (245,245,245)},
  {"WhiteSmoke"                , PALETTERGB (245,245,245)},
  {"gainsboro"                 , PALETTERGB (220,220,220)},
  {"floral white"              , PALETTERGB (255,250,240)},
  {"FloralWhite"               , PALETTERGB (255,250,240)},
  {"old lace"                  , PALETTERGB (253,245,230)},
  {"OldLace"                   , PALETTERGB (253,245,230)},
  {"linen"                     , PALETTERGB (250,240,230)},
  {"antique white"             , PALETTERGB (250,235,215)},
  {"AntiqueWhite"              , PALETTERGB (250,235,215)},
  {"papaya whip"               , PALETTERGB (255,239,213)},
  {"PapayaWhip"                , PALETTERGB (255,239,213)},
  {"blanched almond"           , PALETTERGB (255,235,205)},
  {"BlanchedAlmond"            , PALETTERGB (255,235,205)},
  {"bisque"                    , PALETTERGB (255,228,196)},
  {"peach puff"                , PALETTERGB (255,218,185)},
  {"PeachPuff"                 , PALETTERGB (255,218,185)},
  {"navajo white"              , PALETTERGB (255,222,173)},
  {"NavajoWhite"               , PALETTERGB (255,222,173)},
  {"moccasin"                  , PALETTERGB (255,228,181)},
  {"cornsilk"                  , PALETTERGB (255,248,220)},
  {"ivory"                     , PALETTERGB (255,255,240)},
  {"lemon chiffon"             , PALETTERGB (255,250,205)},
  {"LemonChiffon"              , PALETTERGB (255,250,205)},
  {"seashell"                  , PALETTERGB (255,245,238)},
  {"honeydew"                  , PALETTERGB (240,255,240)},
  {"mint cream"                , PALETTERGB (245,255,250)},
  {"MintCream"                 , PALETTERGB (245,255,250)},
  {"azure"                     , PALETTERGB (240,255,255)},
  {"alice blue"                , PALETTERGB (240,248,255)},
  {"AliceBlue"                 , PALETTERGB (240,248,255)},
  {"lavender"                  , PALETTERGB (230,230,250)},
  {"lavender blush"            , PALETTERGB (255,240,245)},
  {"LavenderBlush"             , PALETTERGB (255,240,245)},
  {"misty rose"                , PALETTERGB (255,228,225)},
  {"MistyRose"                 , PALETTERGB (255,228,225)},
  {"white"                     , PALETTERGB (255,255,255)},
  {"black"                     , PALETTERGB (  0,  0,  0)},
  {"dark slate gray"           , PALETTERGB ( 47, 79, 79)},
  {"DarkSlateGray"             , PALETTERGB ( 47, 79, 79)},
  {"dark slate grey"           , PALETTERGB ( 47, 79, 79)},
  {"DarkSlateGrey"             , PALETTERGB ( 47, 79, 79)},
  {"dim gray"                  , PALETTERGB (105,105,105)},
  {"DimGray"                   , PALETTERGB (105,105,105)},
  {"dim grey"                  , PALETTERGB (105,105,105)},
  {"DimGrey"                   , PALETTERGB (105,105,105)},
  {"slate gray"                , PALETTERGB (112,128,144)},
  {"SlateGray"                 , PALETTERGB (112,128,144)},
  {"slate grey"                , PALETTERGB (112,128,144)},
  {"SlateGrey"                 , PALETTERGB (112,128,144)},
  {"light slate gray"          , PALETTERGB (119,136,153)},
  {"LightSlateGray"            , PALETTERGB (119,136,153)},
  {"light slate grey"          , PALETTERGB (119,136,153)},
  {"LightSlateGrey"            , PALETTERGB (119,136,153)},
  {"gray"                      , PALETTERGB (190,190,190)},
  {"grey"                      , PALETTERGB (190,190,190)},
  {"light grey"                , PALETTERGB (211,211,211)},
  {"LightGrey"                 , PALETTERGB (211,211,211)},
  {"light gray"                , PALETTERGB (211,211,211)},
  {"LightGray"                 , PALETTERGB (211,211,211)},
  {"midnight blue"             , PALETTERGB ( 25, 25,112)},
  {"MidnightBlue"              , PALETTERGB ( 25, 25,112)},
  {"navy"                      , PALETTERGB (  0,  0,128)},
  {"navy blue"                 , PALETTERGB (  0,  0,128)},
  {"NavyBlue"                  , PALETTERGB (  0,  0,128)},
  {"cornflower blue"           , PALETTERGB (100,149,237)},
  {"CornflowerBlue"            , PALETTERGB (100,149,237)},
  {"dark slate blue"           , PALETTERGB ( 72, 61,139)},
  {"DarkSlateBlue"             , PALETTERGB ( 72, 61,139)},
  {"slate blue"                , PALETTERGB (106, 90,205)},
  {"SlateBlue"                 , PALETTERGB (106, 90,205)},
  {"medium slate blue"         , PALETTERGB (123,104,238)},
  {"MediumSlateBlue"           , PALETTERGB (123,104,238)},
  {"light slate blue"          , PALETTERGB (132,112,255)},
  {"LightSlateBlue"            , PALETTERGB (132,112,255)},
  {"medium blue"               , PALETTERGB (  0,  0,205)},
  {"MediumBlue"                , PALETTERGB (  0,  0,205)},
  {"royal blue"                , PALETTERGB ( 65,105,225)},
  {"RoyalBlue"                 , PALETTERGB ( 65,105,225)},
  {"blue"                      , PALETTERGB (  0,  0,255)},
  {"dodger blue"               , PALETTERGB ( 30,144,255)},
  {"DodgerBlue"                , PALETTERGB ( 30,144,255)},
  {"deep sky blue"             , PALETTERGB (  0,191,255)},
  {"DeepSkyBlue"               , PALETTERGB (  0,191,255)},
  {"sky blue"                  , PALETTERGB (135,206,235)},
  {"SkyBlue"                   , PALETTERGB (135,206,235)},
  {"light sky blue"            , PALETTERGB (135,206,250)},
  {"LightSkyBlue"              , PALETTERGB (135,206,250)},
  {"steel blue"                , PALETTERGB ( 70,130,180)},
  {"SteelBlue"                 , PALETTERGB ( 70,130,180)},
  {"light steel blue"          , PALETTERGB (176,196,222)},
  {"LightSteelBlue"            , PALETTERGB (176,196,222)},
  {"light blue"                , PALETTERGB (173,216,230)},
  {"LightBlue"                 , PALETTERGB (173,216,230)},
  {"powder blue"               , PALETTERGB (176,224,230)},
  {"PowderBlue"                , PALETTERGB (176,224,230)},
  {"pale turquoise"            , PALETTERGB (175,238,238)},
  {"PaleTurquoise"             , PALETTERGB (175,238,238)},
  {"dark turquoise"            , PALETTERGB (  0,206,209)},
  {"DarkTurquoise"             , PALETTERGB (  0,206,209)},
  {"medium turquoise"          , PALETTERGB ( 72,209,204)},
  {"MediumTurquoise"           , PALETTERGB ( 72,209,204)},
  {"turquoise"                 , PALETTERGB ( 64,224,208)},
  {"cyan"                      , PALETTERGB (  0,255,255)},
  {"light cyan"                , PALETTERGB (224,255,255)},
  {"LightCyan"                 , PALETTERGB (224,255,255)},
  {"cadet blue"                , PALETTERGB ( 95,158,160)},
  {"CadetBlue"                 , PALETTERGB ( 95,158,160)},
  {"medium aquamarine"         , PALETTERGB (102,205,170)},
  {"MediumAquamarine"          , PALETTERGB (102,205,170)},
  {"aquamarine"                , PALETTERGB (127,255,212)},
  {"dark green"                , PALETTERGB (  0,100,  0)},
  {"DarkGreen"                 , PALETTERGB (  0,100,  0)},
  {"dark olive green"          , PALETTERGB ( 85,107, 47)},
  {"DarkOliveGreen"            , PALETTERGB ( 85,107, 47)},
  {"dark sea green"            , PALETTERGB (143,188,143)},
  {"DarkSeaGreen"              , PALETTERGB (143,188,143)},
  {"sea green"                 , PALETTERGB ( 46,139, 87)},
  {"SeaGreen"                  , PALETTERGB ( 46,139, 87)},
  {"medium sea green"          , PALETTERGB ( 60,179,113)},
  {"MediumSeaGreen"            , PALETTERGB ( 60,179,113)},
  {"light sea green"           , PALETTERGB ( 32,178,170)},
  {"LightSeaGreen"             , PALETTERGB ( 32,178,170)},
  {"pale green"                , PALETTERGB (152,251,152)},
  {"PaleGreen"                 , PALETTERGB (152,251,152)},
  {"spring green"              , PALETTERGB (  0,255,127)},
  {"SpringGreen"               , PALETTERGB (  0,255,127)},
  {"lawn green"                , PALETTERGB (124,252,  0)},
  {"LawnGreen"                 , PALETTERGB (124,252,  0)},
  {"green"                     , PALETTERGB (  0,255,  0)},
  {"chartreuse"                , PALETTERGB (127,255,  0)},
  {"medium spring green"       , PALETTERGB (  0,250,154)},
  {"MediumSpringGreen"         , PALETTERGB (  0,250,154)},
  {"green yellow"              , PALETTERGB (173,255, 47)},
  {"GreenYellow"               , PALETTERGB (173,255, 47)},
  {"lime green"                , PALETTERGB ( 50,205, 50)},
  {"LimeGreen"                 , PALETTERGB ( 50,205, 50)},
  {"yellow green"              , PALETTERGB (154,205, 50)},
  {"YellowGreen"               , PALETTERGB (154,205, 50)},
  {"forest green"              , PALETTERGB ( 34,139, 34)},
  {"ForestGreen"               , PALETTERGB ( 34,139, 34)},
  {"olive drab"                , PALETTERGB (107,142, 35)},
  {"OliveDrab"                 , PALETTERGB (107,142, 35)},
  {"dark khaki"                , PALETTERGB (189,183,107)},
  {"DarkKhaki"                 , PALETTERGB (189,183,107)},
  {"khaki"                     , PALETTERGB (240,230,140)},
  {"pale goldenrod"            , PALETTERGB (238,232,170)},
  {"PaleGoldenrod"             , PALETTERGB (238,232,170)},
  {"light goldenrod yellow"    , PALETTERGB (250,250,210)},
  {"LightGoldenrodYellow"      , PALETTERGB (250,250,210)},
  {"light yellow"              , PALETTERGB (255,255,224)},
  {"LightYellow"               , PALETTERGB (255,255,224)},
  {"yellow"                    , PALETTERGB (255,255,  0)},
  {"gold"                      , PALETTERGB (255,215,  0)},
  {"light goldenrod"           , PALETTERGB (238,221,130)},
  {"LightGoldenrod"            , PALETTERGB (238,221,130)},
  {"goldenrod"                 , PALETTERGB (218,165, 32)},
  {"dark goldenrod"            , PALETTERGB (184,134, 11)},
  {"DarkGoldenrod"             , PALETTERGB (184,134, 11)},
  {"rosy brown"                , PALETTERGB (188,143,143)},
  {"RosyBrown"                 , PALETTERGB (188,143,143)},
  {"indian red"                , PALETTERGB (205, 92, 92)},
  {"IndianRed"                 , PALETTERGB (205, 92, 92)},
  {"saddle brown"              , PALETTERGB (139, 69, 19)},
  {"SaddleBrown"               , PALETTERGB (139, 69, 19)},
  {"sienna"                    , PALETTERGB (160, 82, 45)},
  {"peru"                      , PALETTERGB (205,133, 63)},
  {"burlywood"                 , PALETTERGB (222,184,135)},
  {"beige"                     , PALETTERGB (245,245,220)},
  {"wheat"                     , PALETTERGB (245,222,179)},
  {"sandy brown"               , PALETTERGB (244,164, 96)},
  {"SandyBrown"                , PALETTERGB (244,164, 96)},
  {"tan"                       , PALETTERGB (210,180,140)},
  {"chocolate"                 , PALETTERGB (210,105, 30)},
  {"firebrick"                 , PALETTERGB (178,34, 34)},
  {"brown"                     , PALETTERGB (165,42, 42)},
  {"dark salmon"               , PALETTERGB (233,150,122)},
  {"DarkSalmon"                , PALETTERGB (233,150,122)},
  {"salmon"                    , PALETTERGB (250,128,114)},
  {"light salmon"              , PALETTERGB (255,160,122)},
  {"LightSalmon"               , PALETTERGB (255,160,122)},
  {"orange"                    , PALETTERGB (255,165,  0)},
  {"dark orange"               , PALETTERGB (255,140,  0)},
  {"DarkOrange"                , PALETTERGB (255,140,  0)},
  {"coral"                     , PALETTERGB (255,127, 80)},
  {"light coral"               , PALETTERGB (240,128,128)},
  {"LightCoral"                , PALETTERGB (240,128,128)},
  {"tomato"                    , PALETTERGB (255, 99, 71)},
  {"orange red"                , PALETTERGB (255, 69,  0)},
  {"OrangeRed"                 , PALETTERGB (255, 69,  0)},
  {"red"                       , PALETTERGB (255,  0,  0)},
  {"hot pink"                  , PALETTERGB (255,105,180)},
  {"HotPink"                   , PALETTERGB (255,105,180)},
  {"deep pink"                 , PALETTERGB (255, 20,147)},
  {"DeepPink"                  , PALETTERGB (255, 20,147)},
  {"pink"                      , PALETTERGB (255,192,203)},
  {"light pink"                , PALETTERGB (255,182,193)},
  {"LightPink"                 , PALETTERGB (255,182,193)},
  {"pale violet red"           , PALETTERGB (219,112,147)},
  {"PaleVioletRed"             , PALETTERGB (219,112,147)},
  {"maroon"                    , PALETTERGB (176, 48, 96)},
  {"medium violet red"         , PALETTERGB (199, 21,133)},
  {"MediumVioletRed"           , PALETTERGB (199, 21,133)},
  {"violet red"                , PALETTERGB (208, 32,144)},
  {"VioletRed"                 , PALETTERGB (208, 32,144)},
  {"magenta"                   , PALETTERGB (255,  0,255)},
  {"violet"                    , PALETTERGB (238,130,238)},
  {"plum"                      , PALETTERGB (221,160,221)},
  {"orchid"                    , PALETTERGB (218,112,214)},
  {"medium orchid"             , PALETTERGB (186, 85,211)},
  {"MediumOrchid"              , PALETTERGB (186, 85,211)},
  {"dark orchid"               , PALETTERGB (153, 50,204)},
  {"DarkOrchid"                , PALETTERGB (153, 50,204)},
  {"dark violet"               , PALETTERGB (148,  0,211)},
  {"DarkViolet"                , PALETTERGB (148,  0,211)},
  {"blue violet"               , PALETTERGB (138, 43,226)},
  {"BlueViolet"                , PALETTERGB (138, 43,226)},
  {"purple"                    , PALETTERGB (160, 32,240)},
  {"medium purple"             , PALETTERGB (147,112,219)},
  {"MediumPurple"              , PALETTERGB (147,112,219)},
  {"thistle"                   , PALETTERGB (216,191,216)},
  {"gray0"                     , PALETTERGB (  0,  0,  0)},
  {"grey0"                     , PALETTERGB (  0,  0,  0)},
  {"dark grey"                 , PALETTERGB (169,169,169)},
  {"DarkGrey"                  , PALETTERGB (169,169,169)},
  {"dark gray"                 , PALETTERGB (169,169,169)},
  {"DarkGray"                  , PALETTERGB (169,169,169)},
  {"dark blue"                 , PALETTERGB (  0,  0,139)},
  {"DarkBlue"                  , PALETTERGB (  0,  0,139)},
  {"dark cyan"                 , PALETTERGB (  0,139,139)},
  {"DarkCyan"                  , PALETTERGB (  0,139,139)},
  {"dark magenta"              , PALETTERGB (139,  0,139)},
  {"DarkMagenta"               , PALETTERGB (139,  0,139)},
  {"dark red"                  , PALETTERGB (139,  0,  0)},
  {"DarkRed"                   , PALETTERGB (139,  0,  0)},
  {"light green"               , PALETTERGB (144,238,144)},
  {"LightGreen"                , PALETTERGB (144,238,144)},
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};

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DEFUN ("w32-default-color-map", Fw32_default_color_map, Sw32_default_color_map,
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       0, 0, 0, doc: /* Return the default color map.  */)
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     ()
{
  int i;
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  colormap_t *pc = w32_color_map;
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  Lisp_Object cmap;
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  BLOCK_INPUT;
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  cmap = Qnil;
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  for (i = 0; i < sizeof (w32_color_map) / sizeof (w32_color_map[0]);
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       pc++, i++)
    cmap = Fcons (Fcons (build_string (pc->name),
			 make_number (pc->colorref)),
		  cmap);
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  UNBLOCK_INPUT;
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  return (cmap);
}

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Lisp_Object
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w32_to_x_color (rgb)
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     Lisp_Object rgb;
{
  Lisp_Object color;
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  CHECK_NUMBER (rgb);
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  BLOCK_INPUT;
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  color = Frassq (rgb, Vw32_color_map);
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  UNBLOCK_INPUT;
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  if (!NILP (color))
    return (Fcar (color));
  else
    return Qnil;
}

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COLORREF
w32_color_map_lookup (colorname)
     char *colorname;
{
  Lisp_Object tail, ret = Qnil;

  BLOCK_INPUT;

  for (tail = Vw32_color_map; !NILP (tail); tail = Fcdr (tail))
    {
      register Lisp_Object elt, tem;

      elt = Fcar (tail);
      if (!CONSP (elt)) continue;

      tem = Fcar (elt);

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      if (lstrcmpi (SDATA (tem), colorname) == 0)
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	{
	  ret = XUINT (Fcdr (elt));
	  break;
	}

      QUIT;
    }


  UNBLOCK_INPUT;

  return ret;
}

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COLORREF
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x_to_w32_color (colorname)
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     char * colorname;
{
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  register Lisp_Object ret = Qnil;

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  BLOCK_INPUT;
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  if (colorname[0] == '#')
    {
      /* Could be an old-style RGB Device specification.  */
      char *color;
      int size;
      color = colorname + 1;
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      size = strlen(color);
      if (size == 3 || size == 6 || size == 9 || size == 12)
	{
	  UINT colorval;
	  int i, pos;
	  pos = 0;
	  size /= 3;
	  colorval = 0;
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	  for (i = 0; i < 3; i++)
	    {
	      char *end;
	      char t;
	      unsigned long value;

	      /* The check for 'x' in the following conditional takes into
		 account the fact that strtol allows a "0x" in front of
		 our numbers, and we don't.  */
	      if (!isxdigit(color[0]) || color[1] == 'x')
		break;
	      t = color[size];
	      color[size] = '\0';
	      value = strtoul(color, &end, 16);
	      color[size] = t;
	      if (errno == ERANGE || end - color != size)
		break;
	      switch (size)
		{
		case 1:
		  value = value * 0x10;
		  break;
		case 2:
		  break;
		case 3:
		  value /= 0x10;
		  break;
		case 4:
		  value /= 0x100;
		  break;
		}
	      colorval |= (value << pos);
	      pos += 0x8;
	      if (i == 2)
		{
		  UNBLOCK_INPUT;
		  return (colorval);
		}
	      color = end;
	    }
	}
    }
  else if (strnicmp(colorname, "rgb:", 4) == 0)
    {
      char *color;
      UINT colorval;
      int i, pos;
      pos = 0;

      colorval = 0;
      color = colorname + 4;
      for (i = 0; i < 3; i++)
	{
	  char *end;
	  unsigned long value;
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	  /* The check for 'x' in the following conditional takes into
	     account the fact that strtol allows a "0x" in front of
	     our numbers, and we don't.  */
	  if (!isxdigit(color[0]) || color[1] == 'x')
	    break;
	  value = strtoul(color, &end, 16);
	  if (errno == ERANGE)
	    break;
	  switch (end - color)
	    {
	    case 1:
	      value = value * 0x10 + value;
	      break;
	    case 2:
	      break;
	    case 3:
	      value /= 0x10;
	      break;
	    case 4:
	      value /= 0x100;
	      break;
	    default:
	      value = ULONG_MAX;
	    }
	  if (value == ULONG_MAX)
	    break;
	  colorval |= (value << pos);
	  pos += 0x8;
	  if (i == 2)
	    {
	      if (*end != '\0')
		break;
	      UNBLOCK_INPUT;
	      return (colorval);
	    }
	  if (*end != '/')
	    break;
	  color = end + 1;
	}
    }
  else if (strnicmp(colorname, "rgbi:", 5) == 0)
    {
      /* This is an RGB Intensity specification.  */
      char *color;
      UINT colorval;
      int i, pos;
      pos = 0;

      colorval = 0;
      color = colorname + 5;
      for (i = 0; i < 3; i++)
	{
	  char *end;
	  double value;
	  UINT val;

	  value = strtod(color, &end);
	  if (errno == ERANGE)
	    break;
	  if (value < 0.0 || value > 1.0)
	    break;
	  val = (UINT)(0x100 * value);
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	  /* We used 0x100 instead of 0xFF to give a continuous
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             range between 0.0 and 1.0 inclusive.  The next statement
             fixes the 1.0 case.  */
	  if (val == 0x100)
	    val = 0xFF;
	  colorval |= (val << pos);
	  pos += 0x8;
	  if (i == 2)
	    {
	      if (*end != '\0')
		break;
	      UNBLOCK_INPUT;
	      return (colorval);
	    }
	  if (*end != '/')
	    break;
	  color = end + 1;
	}
    }
  /* I am not going to attempt to handle any of the CIE color schemes
     or TekHVC, since I don't know the algorithms for conversion to
     RGB.  */
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  /* If we fail to lookup the color name in w32_color_map, then check the
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     colorname to see if it can be crudely approximated: If the X color
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     ends in a number (e.g., "darkseagreen2"), strip the number and
     return the result of looking up the base color name.  */
  ret = w32_color_map_lookup (colorname);
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  if (NILP (ret))
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    {
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      int len = strlen (colorname);
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      if (isdigit (colorname[len - 1]))
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	{
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	  char *ptr, *approx = alloca (len + 1);
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	  strcpy (approx, colorname);
	  ptr = &approx[len - 1];
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	  while (ptr > approx && isdigit (*ptr))
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	      *ptr-- = '\0';
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	  ret = w32_color_map_lookup (approx);
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	}
    }
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  UNBLOCK_INPUT;
  return ret;
}

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void
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w32_regenerate_palette (FRAME_PTR f)
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{
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  struct w32_palette_entry * list;
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  LOGPALETTE *          log_palette;
  HPALETTE              new_palette;
  int                   i;

  /* don't bother trying to create palette if not supported */
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  if (! FRAME_W32_DISPLAY_INFO (f)->has_palette)
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    return;

  log_palette = (LOGPALETTE *)
    alloca (sizeof (LOGPALETTE) +
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	     FRAME_W32_DISPLAY_INFO (f)->num_colors * sizeof (PALETTEENTRY));
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  log_palette->palVersion = 0x300;
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  log_palette->palNumEntries = FRAME_W32_DISPLAY_INFO (f)->num_colors;
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  list = FRAME_W32_DISPLAY_INFO (f)->color_list;
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  for (i = 0;
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       i < FRAME_W32_DISPLAY_INFO (f)->num_colors;
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       i++, list = list->next)
    log_palette->palPalEntry[i] = list->entry;

  new_palette = CreatePalette (log_palette);

  enter_crit ();

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  if (FRAME_W32_DISPLAY_INFO (f)->palette)
    DeleteObject (FRAME_W32_DISPLAY_INFO (f)->palette);
  FRAME_W32_DISPLAY_INFO (f)->palette = new_palette;
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  /* Realize display palette and garbage all frames. */
  release_frame_dc (f, get_frame_dc (f));

  leave_crit ();
}

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#define W32_COLOR(pe)  RGB (pe.peRed, pe.peGreen, pe.peBlue)
#define SET_W32_COLOR(pe, color) \
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  do \
    { \
      pe.peRed = GetRValue (color); \
      pe.peGreen = GetGValue (color); \
      pe.peBlue = GetBValue (color); \
      pe.peFlags = 0; \
    } while (0)

#if 0
/* Keep these around in case we ever want to track color usage. */
void
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w32_map_color (FRAME_PTR f, COLORREF color)
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{
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  struct w32_palette_entry * list = FRAME_W32_DISPLAY_INFO (f)->color_list;
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  if (NILP (Vw32_enable_palette))
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    return;

  /* check if color is already mapped */
  while (list)
    {
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      if (W32_COLOR (list->entry) == color)
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        {
	  ++list->refcount;
	  return;
	}
      list = list->next;
    }

  /* not already mapped, so add to list and recreate Windows palette */
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  list = (struct w32_palette_entry *)
    xmalloc (sizeof (struct w32_palette_entry));
  SET_W32_COLOR (list->entry, color);
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  list->refcount = 1;
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  list->next = FRAME_W32_DISPLAY_INFO (f)->color_list;
  FRAME_W32_DISPLAY_INFO (f)->color_list = list;
  FRAME_W32_DISPLAY_INFO (f)->num_colors++;
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  /* set flag that palette must be regenerated */
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  FRAME_W32_DISPLAY_INFO (f)->regen_palette = TRUE;
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}

void
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w32_unmap_color (FRAME_PTR f, COLORREF color)
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{
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  struct w32_palette_entry * list = FRAME_W32_DISPLAY_INFO (f)->color_list;
  struct w32_palette_entry **prev = &FRAME_W32_DISPLAY_INFO (f)->color_list;
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  if (NILP (Vw32_enable_palette))
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    return;

  /* check if color is already mapped */
  while (list)
    {
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      if (W32_COLOR (list->entry) == color)
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        {
	  if (--list->refcount == 0)
	    {
	      *prev = list->next;
	      xfree (list);
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	      FRAME_W32_DISPLAY_INFO (f)->num_colors--;
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	      break;
	    }
	  else
	    return;
	}
      prev = &list->next;
      list = list->next;
    }

  /* set flag that palette must be regenerated */
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  FRAME_W32_DISPLAY_INFO (f)->regen_palette = TRUE;
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}
#endif

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/* Gamma-correct COLOR on frame F.  */

void
gamma_correct (f, color)
     struct frame *f;
     COLORREF *color;
{
  if (f->gamma)
    {
      *color = PALETTERGB (
        pow (GetRValue (*color) / 255.0, f->gamma) * 255.0 + 0.5,
        pow (GetGValue (*color) / 255.0, f->gamma) * 255.0 + 0.5,
        pow (GetBValue (*color) / 255.0, f->gamma) * 255.0 + 0.5);
    }
}


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/* Decide if color named COLOR is valid for the display associated with
   the selected frame; if so, return the rgb values in COLOR_DEF.
   If ALLOC is nonzero, allocate a new colormap cell.  */

int
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w32_defined_color (f, color, color_def, alloc)
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     FRAME_PTR f;
     char *color;
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     XColor *color_def;
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     int alloc;
{
  register Lisp_Object tem;
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  COLORREF w32_color_ref;
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  tem = x_to_w32_color (color);
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  if (!NILP (tem))
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    {
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      if (f)
        {
          /* Apply gamma correction.  */
          w32_color_ref = XUINT (tem);
          gamma_correct (f, &w32_color_ref);
          XSETINT (tem, w32_color_ref);
        }
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      /* Map this color to the palette if it is enabled. */
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      if (!NILP (Vw32_enable_palette))
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	{
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	  struct w32_palette_entry * entry =
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	    one_w32_display_info.color_list;
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	  struct w32_palette_entry ** prev =
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	    &one_w32_display_info.color_list;
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	  /* check if color is already mapped */
	  while (entry)
	    {
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	      if (W32_COLOR (entry->entry) == XUINT (tem))
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		break;
	      prev = &entry->next;
	      entry = entry->next;
	    }

	  if (entry == NULL && alloc)
	    {
	      /* not already mapped, so add to list */
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	      entry = (struct w32_palette_entry *)
		xmalloc (sizeof (struct w32_palette_entry));
	      SET_W32_COLOR (entry->entry, XUINT (tem));
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	      entry->next = NULL;
	      *prev = entry;
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	      one_w32_display_info.num_colors++;
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	      /* set flag that palette must be regenerated */
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	      one_w32_display_info.regen_palette = TRUE;
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	    }
	}
      /* Ensure COLORREF value is snapped to nearest color in (default)
	 palette by simulating the PALETTERGB macro.  This works whether
	 or not the display device has a palette. */
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      w32_color_ref = XUINT (tem) | 0x2000000;

      color_def->pixel = w32_color_ref;
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      color_def->red = GetRValue (w32_color_ref) * 256;
      color_def->green = GetGValue (w32_color_ref) * 256;
      color_def->blue = GetBValue (w32_color_ref) * 256;
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      return 1;
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    }
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  else
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    {
      return 0;
    }
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}

/* Given a string ARG naming a color, compute a pixel value from it
   suitable for screen F.
   If F is not a color screen, return DEF (default) regardless of what
   ARG says.  */

int
x_decode_color (f, arg, def)
     FRAME_PTR f;
     Lisp_Object arg;
     int def;
{
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  XColor cdef;
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  CHECK_STRING (arg);
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  if (strcmp (SDATA (arg), "black") == 0)
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    return BLACK_PIX_DEFAULT (f);
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  else if (strcmp (SDATA (arg), "white") == 0)
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    return WHITE_PIX_DEFAULT (f);

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  if ((FRAME_W32_DISPLAY_INFO (f)->n_planes * FRAME_W32_DISPLAY_INFO (f)->n_cbits) == 1)
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    return def;

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  /* w32_defined_color is responsible for coping with failures
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     by looking for a near-miss.  */
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  if (w32_defined_color (f, SDATA (arg), &cdef, 1))
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    return cdef.pixel;
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  /* defined_color failed; return an ultimate default.  */
  return def;
}

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/* Functions called only from `x_set_frame_param'
   to set individual parameters.

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   If FRAME_W32_WINDOW (f) is 0,
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   the frame is being created and its window does not exist yet.
   In that case, just record the parameter's new value
   in the standard place; do not attempt to change the window.  */

void
x_set_foreground_color (f, arg, oldval)
     struct frame *f;
     Lisp_Object arg, oldval;
{
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  struct w32_output *x = f->output_data.w32;
  PIX_TYPE fg, old_fg;

  fg = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
  old_fg = FRAME_FOREGROUND_PIXEL (f);
  FRAME_FOREGROUND_PIXEL (f) = fg;
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  if (FRAME_W32_WINDOW (f) != 0)
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    {
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      if (x->cursor_pixel == old_fg)
	x->cursor_pixel = fg;

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      update_face_from_frame_parameter (f, Qforeground_color, arg);
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      if (FRAME_VISIBLE_P (f))
        redraw_frame (f);
    }
}

void
x_set_background_color (f, arg, oldval)
     struct frame *f;
     Lisp_Object arg, oldval;
{
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  FRAME_BACKGROUND_PIXEL (f)
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    = x_decode_color (f, arg, WHITE_PIX_DEFAULT (f));

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  if (FRAME_W32_WINDOW (f) != 0)
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    {
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      SetWindowLong (FRAME_W32_WINDOW (f), WND_BACKGROUND_INDEX,
                     FRAME_BACKGROUND_PIXEL (f));
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      update_face_from_frame_parameter (f, Qbackground_color, arg);
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      if (FRAME_VISIBLE_P (f))
        redraw_frame (f);
    }
}

void
x_set_mouse_color (f, arg, oldval)
     struct frame *f;
     Lisp_Object arg, oldval;
{
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  Cursor cursor, nontext_cursor, mode_cursor, hand_cursor;
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  int count;
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  int mask_color;

  if (!EQ (Qnil, arg))
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    f->output_data.w32->mouse_pixel
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Geoff Voelker committed
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      = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));
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  mask_color = FRAME_BACKGROUND_PIXEL (f);

  /* Don't let pointers be invisible.  */
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  if (mask_color == f->output_data.w32->mouse_pixel
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	&& mask_color == FRAME_BACKGROUND_PIXEL (f))
    f->output_data.w32->mouse_pixel = FRAME_FOREGROUND_PIXEL (f);