w32fns.c 222 KB
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/* Graphical user interface functions for the Microsoft W32 API.
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Copyright (C) 1989, 1992-2011  Free Software Foundation, Inc.
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This file is part of GNU Emacs.

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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
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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
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along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
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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 <math.h>
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#include <setjmp.h>
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#include "lisp.h"
#include "w32term.h"
#include "frame.h"
#include "window.h"
#include "buffer.h"
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#include "intervals.h"
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#include "dispextern.h"
#include "keyboard.h"
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#include "blockinput.h"
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#include "epaths.h"
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#include "character.h"
#include "charset.h"
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#include "coding.h"
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#include "ccl.h"
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#include "fontset.h"
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#include "systime.h"
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#include "termhooks.h"
#include "w32heap.h"
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#include "w32.h"
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#include "bitmaps/gray.xbm"
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#include <commctrl.h>
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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 <winspool.h>
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#include <objbase.h>
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#include <dlgs.h>
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#include <imm.h>
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#define FILE_NAME_TEXT_FIELD edt1
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#define FILE_NAME_COMBO_BOX cmb13
#define FILE_NAME_LIST lst1
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#include "font.h"
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#include "w32font.h"
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#ifndef FOF_NO_CONNECTED_ELEMENTS
#define FOF_NO_CONNECTED_ELEMENTS 0x2000
#endif

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void syms_of_w32fns (void);
void globals_of_w32fns (void);
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extern void free_frame_menubar (struct frame *);
extern double atof (const char *);
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extern int w32_console_toggle_lock_key (int, Lisp_Object);
extern void w32_menu_display_help (HWND, HMENU, UINT, UINT);
extern void w32_free_menu_strings (HWND);
extern const char *map_w32_filename (const char *, const char **);
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/* If non-zero, a w32 timer that, when it expires, displays an
   hourglass cursor on all frames.  */
static unsigned hourglass_timer = 0;
static HWND hourglass_hwnd = NULL;

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

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

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Lisp_Object Qnone;
Lisp_Object Qsuppress_icon;
Lisp_Object Qundefined_color;
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Lisp_Object Qcancel_timer;
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Lisp_Object Qfont_param;
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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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/* Prefix for system colors.  */
#define SYSTEM_COLOR_PREFIX "System"
#define SYSTEM_COLOR_PREFIX_LEN (sizeof (SYSTEM_COLOR_PREFIX) - 1)

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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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/* Multi-monitor API definitions that are not pulled from the headers
   since we are compiling for NT 4.  */
#ifndef MONITOR_DEFAULT_TO_NEAREST
#define MONITOR_DEFAULT_TO_NEAREST 2
#endif
/* MinGW headers define MONITORINFO unconditionally, but MSVC ones don't.
   To avoid a compile error on one or the other, redefine with a new name.  */
struct MONITOR_INFO
{
    DWORD   cbSize;
    RECT    rcMonitor;
    RECT    rcWork;
    DWORD   dwFlags;
};

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/* Reportedly, VS 6 does not have this in its headers.  */
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#if defined (_MSC_VER) && _MSC_VER < 1300
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DECLARE_HANDLE(HMONITOR);
#endif

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typedef BOOL (WINAPI * TrackMouseEvent_Proc)
  (IN OUT LPTRACKMOUSEEVENT lpEventTrack);
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typedef LONG (WINAPI * ImmGetCompositionString_Proc)
  (IN HIMC context, IN DWORD index, OUT LPVOID buffer, IN DWORD bufLen);
typedef HIMC (WINAPI * ImmGetContext_Proc) (IN HWND window);
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typedef HWND (WINAPI * ImmReleaseContext_Proc) (IN HWND wnd, IN HIMC context);
typedef HWND (WINAPI * ImmSetCompositionWindow_Proc) (IN HIMC context,
						      IN COMPOSITIONFORM *form);
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typedef HMONITOR (WINAPI * MonitorFromPoint_Proc) (IN POINT pt, IN DWORD flags);
typedef BOOL (WINAPI * GetMonitorInfo_Proc)
  (IN HMONITOR monitor, OUT struct MONITOR_INFO* info);
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TrackMouseEvent_Proc track_mouse_event_fn = NULL;
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ImmGetCompositionString_Proc get_composition_string_fn = NULL;
ImmGetContext_Proc get_ime_context_fn = NULL;
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ImmReleaseContext_Proc release_ime_context_fn = NULL;
ImmSetCompositionWindow_Proc set_ime_composition_window_fn = NULL;
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MonitorFromPoint_Proc monitor_from_point_fn = NULL;
GetMonitorInfo_Proc get_monitor_info_fn = NULL;
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extern AppendMenuW_Proc unicode_append_menu;
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/* Flag to selectively ignore WM_IME_CHAR messages.  */
static int ignore_ime_char = 0;

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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
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#define HOURGLASS_ID 4
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/* 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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#ifdef GLYPH_DEBUG
int image_cache_refcount, dpyinfo_refcount;
#endif

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static HWND w32_visible_system_caret_hwnd;
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/* From w32menu.c  */
extern HMENU current_popup_menu;
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static int menubar_in_use = 0;
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/* From w32uniscribe.c  */
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extern void syms_of_w32uniscribe (void);
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extern int uniscribe_available;

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/* Function prototypes for hourglass support.  */
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static void w32_show_hourglass (struct frame *);
static void w32_hide_hourglass (void);
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/* Error if we are not connected to MS-Windows.  */
void
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check_w32 (void)
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{
  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
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have_menus_p (void)
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{
  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
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check_x_frame (Lisp_Object frame)
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{
  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))
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    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 (Lisp_Object frame)
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{
  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))
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	error ("Non-W32 frame used");
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      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 *
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x_window_to_frame (struct w32_display_info *dpyinfo, HWND wdesc)
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{
  Lisp_Object tail, frame;
  struct frame *f;

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  for (tail = Vframe_list; CONSP (tail); tail = XCDR (tail))
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    {
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      frame = XCAR (tail);
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      if (!FRAMEP (frame))
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        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 (FRAME_W32_WINDOW (f) == wdesc)
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        return f;
    }
  return 0;
}


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static Lisp_Object unwind_create_frame (Lisp_Object);
static Lisp_Object unwind_create_tip_frame (Lisp_Object);
static void my_create_window (struct frame *);
static void my_create_tip_window (struct frame *);
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/* TODO: Native Input Method support; see x_create_im.  */
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void x_set_foreground_color (struct frame *, Lisp_Object, Lisp_Object);
void x_set_background_color (struct frame *, Lisp_Object, Lisp_Object);
void x_set_mouse_color (struct frame *, Lisp_Object, Lisp_Object);
void x_set_cursor_color (struct frame *, Lisp_Object, Lisp_Object);
void x_set_border_color (struct frame *, Lisp_Object, Lisp_Object);
void x_set_cursor_type (struct frame *, Lisp_Object, Lisp_Object);
void x_set_icon_type (struct frame *, Lisp_Object, Lisp_Object);
void x_set_icon_name (struct frame *, Lisp_Object, Lisp_Object);
void x_explicitly_set_name (struct frame *, Lisp_Object, Lisp_Object);
void x_set_menu_bar_lines (struct frame *, Lisp_Object, Lisp_Object);
void x_set_title (struct frame *, Lisp_Object, Lisp_Object);
void x_set_tool_bar_lines (struct frame *, 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
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x_real_positions (FRAME_PTR f, int *xptr, int *yptr)
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{
  POINT pt;
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  RECT rect;
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  /* Get the bounds of the WM window.  */
  GetWindowRect (FRAME_W32_WINDOW (f), &rect);
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  pt.x = 0;
  pt.y = 0;
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  /* Convert (0, 0) in the client area to screen co-ordinates.  */
  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 = rect.left;
  *yptr = rect.top;
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}



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DEFUN ("w32-define-rgb-color", Fw32_define_rgb_color,
       Sw32_define_rgb_color, 4, 4, 0,
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       doc: /* Convert RGB numbers to a Windows color reference and associate with NAME.
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This adds or updates a named color to `w32-color-map', making it
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available for use.  The original entry's RGB ref is returned, or nil
if the entry is new.  */)
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  (Lisp_Object red, Lisp_Object green, Lisp_Object blue, Lisp_Object 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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  XSETINT (rgb, 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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/* 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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  (void)
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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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static Lisp_Object
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w32_color_map_lookup (char *colorname)
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{
  Lisp_Object tail, ret = Qnil;

  BLOCK_INPUT;

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  for (tail = Vw32_color_map; CONSP (tail); tail = XCDR (tail))
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    {
      register Lisp_Object elt, tem;

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

      tem = Fcar (elt);

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

      QUIT;
    }


  UNBLOCK_INPUT;

  return ret;
}

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static void
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add_system_logical_colors_to_map (Lisp_Object *system_colors)
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{
  HKEY colors_key;

  /* Other registry operations are done with input blocked.  */
  BLOCK_INPUT;

  /* Look for "Control Panel/Colors" under User and Machine registry
     settings.  */
  if (RegOpenKeyEx (HKEY_CURRENT_USER, "Control Panel\\Colors", 0,
		    KEY_READ, &colors_key) == ERROR_SUCCESS
      || RegOpenKeyEx (HKEY_LOCAL_MACHINE, "Control Panel\\Colors", 0,
		       KEY_READ, &colors_key) == ERROR_SUCCESS)
    {
      /* List all keys.  */
      char color_buffer[64];
      char full_name_buffer[MAX_PATH + SYSTEM_COLOR_PREFIX_LEN];
      int index = 0;
      DWORD name_size, color_size;
      char *name_buffer = full_name_buffer + SYSTEM_COLOR_PREFIX_LEN;

      name_size = sizeof (full_name_buffer) - SYSTEM_COLOR_PREFIX_LEN;
      color_size = sizeof (color_buffer);

      strcpy (full_name_buffer, SYSTEM_COLOR_PREFIX);

      while (RegEnumValueA (colors_key, index, name_buffer, &name_size,
			    NULL, NULL, color_buffer, &color_size)
	     == ERROR_SUCCESS)
	{
	  int r, g, b;
	  if (sscanf (color_buffer, " %u %u %u", &r, &g, &b) == 3)
	    *system_colors = Fcons (Fcons (build_string (full_name_buffer),
					   make_number (RGB (r, g, b))),
				    *system_colors);

	  name_size = sizeof (full_name_buffer) - SYSTEM_COLOR_PREFIX_LEN;
	  color_size = sizeof (color_buffer);
	  index++;
	}
      RegCloseKey (colors_key);
    }

  UNBLOCK_INPUT;
}


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static Lisp_Object
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x_to_w32_color (char * colorname)
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{
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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);
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      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.  */
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	      if (!isxdigit (color[0]) || color[1] == 'x')
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		break;
	      t = color[size];
	      color[size] = '\0';
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	      value = strtoul (color, &end, 16);
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	      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;
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		  XSETINT (ret, colorval);
		  return ret;
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		}
	      color = end;
	    }
	}
    }
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  else if (strnicmp (colorname, "rgb:", 4) == 0)
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    {
      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.  */
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	  if (!isxdigit (color[0]) || color[1] == 'x')
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	    break;
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	  value = strtoul (color, &end, 16);
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	  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;
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	      XSETINT (ret, colorval);
	      return ret;
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	    }
	  if (*end != '/')
	    break;
	  color = end + 1;
	}
    }
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  else if (strnicmp (colorname, "rgbi:", 5) == 0)
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    {
      /* 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;

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	  value = strtod (color, &end);
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	  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;
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	      XSETINT (ret, colorval);
	      return ret;
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	    }
	  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
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gamma_correct (struct frame *f, COLORREF *color)
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{
  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 (FRAME_PTR f, char *color, XColor *color_def, int alloc)
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{
  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
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x_decode_color (FRAME_PTR f, Lisp_Object arg, int def)
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{
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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
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x_set_foreground_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
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{
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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)
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	{
	  x->cursor_pixel = fg;
	  x->cursor_gc->background = 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
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x_set_background_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
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{
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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
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x_set_mouse_color (struct frame *f, Lisp_Object arg, Lisp_Object oldval)
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{
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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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      = x_decode_color (f, arg, BLACK_PIX_DEFAULT (f));