w32fns.c 280 KB
Newer Older
1
/* Graphical user interface functions for the Microsoft Windows API.
2

Paul Eggert's avatar
Paul Eggert committed
3
Copyright (C) 1989, 1992-2015 Free Software Foundation, Inc.
Geoff Voelker's avatar
Geoff Voelker committed
4 5 6

This file is part of GNU Emacs.

7
GNU Emacs is free software: you can redistribute it and/or modify
Geoff Voelker's avatar
Geoff Voelker committed
8
it under the terms of the GNU General Public License as published by
9 10
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Geoff Voelker's avatar
Geoff Voelker committed
11 12 13 14 15 16 17

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
18
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
Geoff Voelker's avatar
Geoff Voelker committed
19 20 21 22

/* Added by Kevin Gallo */

#include <config.h>
23 24

#include <signal.h>
Geoff Voelker's avatar
Geoff Voelker committed
25
#include <stdio.h>
26 27
#include <limits.h>
#include <errno.h>
Jason Rumney's avatar
Jason Rumney committed
28
#include <math.h>
29
#include <fcntl.h>
30
#include <unistd.h>
Geoff Voelker's avatar
Geoff Voelker committed
31

32 33
#include <c-ctype.h>

Geoff Voelker's avatar
Geoff Voelker committed
34 35 36 37
#include "lisp.h"
#include "w32term.h"
#include "frame.h"
#include "window.h"
38
#include "character.h"
Geoff Voelker's avatar
Geoff Voelker committed
39
#include "buffer.h"
40
#include "intervals.h"
41 42
#include "dispextern.h"
#include "keyboard.h"
Geoff Voelker's avatar
Geoff Voelker committed
43
#include "blockinput.h"
44
#include "epaths.h"
45
#include "charset.h"
46
#include "coding.h"
47
#include "ccl.h"
48
#include "fontset.h"
49
#include "systime.h"
50
#include "termhooks.h"
Daniel Colascione's avatar
Daniel Colascione committed
51

Daniel Colascione's avatar
Daniel Colascione committed
52 53 54
#include "w32common.h"

#ifdef WINDOWSNT
55
#include "w32heap.h"
56
#include <mbstring.h>
Daniel Colascione's avatar
Daniel Colascione committed
57
#endif /* WINDOWSNT */
Daniel Colascione's avatar
Daniel Colascione committed
58 59 60 61

#if CYGWIN
#include "cygw32.h"
#else
Eli Zaretskii's avatar
Eli Zaretskii committed
62
#include "w32.h"
Daniel Colascione's avatar
Daniel Colascione committed
63
#endif
64 65

#include "bitmaps/gray.xbm"
Geoff Voelker's avatar
Geoff Voelker committed
66

67
#include <commctrl.h>
Geoff Voelker's avatar
Geoff Voelker committed
68
#include <commdlg.h>
Richard M. Stallman's avatar
Richard M. Stallman committed
69
#include <shellapi.h>
70
#include <ctype.h>
Kenichi Handa's avatar
Kenichi Handa committed
71
#include <winspool.h>
72
#include <objbase.h>
Geoff Voelker's avatar
Geoff Voelker committed
73

74
#include <dlgs.h>
Jason Rumney's avatar
Jason Rumney committed
75
#include <imm.h>
76

77
#include "font.h"
78
#include "w32font.h"
79

80 81 82 83
#ifndef FOF_NO_CONNECTED_ELEMENTS
#define FOF_NO_CONNECTED_ELEMENTS 0x2000
#endif

84 85
void syms_of_w32fns (void);
void globals_of_w32fns (void);
86

87
extern void free_frame_menubar (struct frame *);
88 89 90 91
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 **);
Daniel Colascione's avatar
Daniel Colascione committed
92
extern char * w32_strerror (int error_no);
93

94 95 96 97
#ifndef IDC_HAND
#define IDC_HAND MAKEINTRESOURCE(32649)
#endif

98 99 100 101
/* Prefix for system colors.  */
#define SYSTEM_COLOR_PREFIX "System"
#define SYSTEM_COLOR_PREFIX_LEN (sizeof (SYSTEM_COLOR_PREFIX) - 1)

102 103 104 105 106 107
/* State variables for emulating a three button mouse. */
#define LMOUSE 1
#define MMOUSE 2
#define RMOUSE 4

static int button_state = 0;
108
static W32Msg saved_mouse_button_msg;
109
static unsigned mouse_button_timer = 0;	/* non-zero when timer is active */
110
static W32Msg saved_mouse_move_msg;
111
static unsigned mouse_move_timer = 0;
112

113 114
/* Window that is tracking the mouse.  */
static HWND track_mouse_window;
115

116 117 118 119 120
/* 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
121 122 123 124 125 126 127 128 129
#ifndef MONITORINFOF_PRIMARY
#define MONITORINFOF_PRIMARY 1
#endif
#ifndef SM_XVIRTUALSCREEN
#define SM_XVIRTUALSCREEN 76
#endif
#ifndef SM_YVIRTUALSCREEN
#define SM_YVIRTUALSCREEN 77
#endif
130 131 132 133 134 135 136 137 138 139
/* 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;
};

140 141 142 143 144 145 146 147 148 149 150 151
#ifndef CCHDEVICENAME
#define CCHDEVICENAME 32
#endif
struct MONITOR_INFO_EX
{
    DWORD   cbSize;
    RECT    rcMonitor;
    RECT    rcWork;
    DWORD   dwFlags;
    char    szDevice[CCHDEVICENAME];
};

152
/* Reportedly, MSVC does not have this in its headers.  */
153
#if defined (_MSC_VER) && _WIN32_WINNT < 0x0500
154 155 156
DECLARE_HANDLE(HMONITOR);
#endif

157 158
typedef BOOL (WINAPI * TrackMouseEvent_Proc)
  (IN OUT LPTRACKMOUSEEVENT lpEventTrack);
Jason Rumney's avatar
Jason Rumney committed
159 160 161
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);
162 163
typedef BOOL (WINAPI * ImmReleaseContext_Proc) (IN HWND wnd, IN HIMC context);
typedef BOOL (WINAPI * ImmSetCompositionWindow_Proc) (IN HIMC context,
164
						      IN COMPOSITIONFORM *form);
165 166 167
typedef HMONITOR (WINAPI * MonitorFromPoint_Proc) (IN POINT pt, IN DWORD flags);
typedef BOOL (WINAPI * GetMonitorInfo_Proc)
  (IN HMONITOR monitor, OUT struct MONITOR_INFO* info);
168 169
typedef HMONITOR (WINAPI * MonitorFromWindow_Proc)
  (IN HWND hwnd, IN DWORD dwFlags);
170 171 172 173
typedef BOOL CALLBACK (* MonitorEnum_Proc)
  (IN HMONITOR monitor, IN HDC hdc, IN RECT *rcMonitor, IN LPARAM dwData);
typedef BOOL (WINAPI * EnumDisplayMonitors_Proc)
  (IN HDC hdc, IN RECT *rcClip, IN MonitorEnum_Proc fnEnum, IN LPARAM dwData);
174

175
TrackMouseEvent_Proc track_mouse_event_fn = NULL;
Jason Rumney's avatar
Jason Rumney committed
176 177
ImmGetCompositionString_Proc get_composition_string_fn = NULL;
ImmGetContext_Proc get_ime_context_fn = NULL;
178 179
ImmReleaseContext_Proc release_ime_context_fn = NULL;
ImmSetCompositionWindow_Proc set_ime_composition_window_fn = NULL;
180 181
MonitorFromPoint_Proc monitor_from_point_fn = NULL;
GetMonitorInfo_Proc get_monitor_info_fn = NULL;
182
MonitorFromWindow_Proc monitor_from_window_fn = NULL;
183
EnumDisplayMonitors_Proc enum_display_monitors_fn = NULL;
Jason Rumney's avatar
Jason Rumney committed
184

Daniel Colascione's avatar
Daniel Colascione committed
185 186 187
#ifdef NTGUI_UNICODE
#define unicode_append_menu AppendMenuW
#else /* !NTGUI_UNICODE */
188
extern AppendMenuW_Proc unicode_append_menu;
Daniel Colascione's avatar
Daniel Colascione committed
189
#endif /* NTGUI_UNICODE */
190

Jason Rumney's avatar
Jason Rumney committed
191 192 193
/* Flag to selectively ignore WM_IME_CHAR messages.  */
static int ignore_ime_char = 0;

194
/* W95 mousewheel handler */
Juanma Barranquero's avatar
Juanma Barranquero committed
195
unsigned int msh_mousewheel = 0;
196

197
/* Timers */
198 199
#define MOUSE_BUTTON_ID	1
#define MOUSE_MOVE_ID	2
200 201 202 203 204
#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;
205

206
#ifdef GLYPH_DEBUG
Paul Eggert's avatar
Paul Eggert committed
207
static int image_cache_refcount, dpyinfo_refcount;
208 209
#endif

210
static HWND w32_visible_system_caret_hwnd;
211

212 213
static int w32_unicode_gui;

214 215
/* From w32menu.c  */
extern HMENU current_popup_menu;
216
int menubar_in_use = 0;
217

218
/* From w32uniscribe.c  */
219
extern void syms_of_w32uniscribe (void);
220 221
extern int uniscribe_available;

Daniel Colascione's avatar
Daniel Colascione committed
222
#ifdef WINDOWSNT
Paul Eggert's avatar
Paul Eggert committed
223
/* From w32inevt.c */
Daniel Colascione's avatar
Daniel Colascione committed
224 225 226 227 228 229 230 231 232
extern int faked_key;
#endif /* WINDOWSNT */

/* This gives us the page size and the size of the allocation unit on NT.  */
SYSTEM_INFO sysinfo_cache;

/* This gives us version, build, and platform identification.  */
OSVERSIONINFO osinfo_cache;

233
DWORD_PTR syspage_mask = 0;
Daniel Colascione's avatar
Daniel Colascione committed
234 235 236 237 238 239 240 241 242 243 244 245 246 247 248

/* The major and minor versions of NT.  */
int w32_major_version;
int w32_minor_version;
int w32_build_number;

/* Distinguish between Windows NT and Windows 95.  */
int os_subtype;

#ifdef HAVE_NTGUI
HINSTANCE hinst = NULL;
#endif

static unsigned int sound_type = 0xFFFFFFFF;
#define MB_EMACS_SILENT (0xFFFFFFFF - 1)
249

Juanma Barranquero's avatar
Juanma Barranquero committed
250
/* Let the user specify a display with a frame.
251
   nil stands for the selected frame--or, if that is not a w32 frame,
Geoff Voelker's avatar
Geoff Voelker committed
252 253
   the first display on the list.  */

254
struct w32_display_info *
255
check_x_display_info (Lisp_Object object)
Geoff Voelker's avatar
Geoff Voelker committed
256
{
257
  if (NILP (object))
Geoff Voelker's avatar
Geoff Voelker committed
258
    {
259
      struct frame *sf = XFRAME (selected_frame);
Juanma Barranquero's avatar
Juanma Barranquero committed
260

261
      if (FRAME_W32_P (sf) && FRAME_LIVE_P (sf))
262
	return FRAME_DISPLAY_INFO (sf);
Geoff Voelker's avatar
Geoff Voelker committed
263
      else
264
	return &one_w32_display_info;
Geoff Voelker's avatar
Geoff Voelker committed
265
    }
266 267
  else if (TERMINALP (object))
    {
268
      struct terminal *t = decode_live_terminal (object);
269 270 271 272 273 274 275 276

      if (t->type != output_w32)
        error ("Terminal %d is not a W32 display", t->id);

      return t->display_info.w32;
    }
  else if (STRINGP (object))
    return x_display_info_for_name (object);
Geoff Voelker's avatar
Geoff Voelker committed
277 278
  else
    {
Dmitry Antipov's avatar
Dmitry Antipov committed
279
      struct frame *f;
Geoff Voelker's avatar
Geoff Voelker committed
280

281 282
      CHECK_LIVE_FRAME (object);
      f = XFRAME (object);
283
      if (! FRAME_W32_P (f))
284
	error ("Non-W32 frame used");
285
      return FRAME_DISPLAY_INFO (f);
Geoff Voelker's avatar
Geoff Voelker committed
286 287 288
    }
}

289
/* Return the Emacs frame-object corresponding to an w32 window.
Geoff Voelker's avatar
Geoff Voelker committed
290 291 292
   It could be the frame's main window or an icon window.  */

struct frame *
293
x_window_to_frame (struct w32_display_info *dpyinfo, HWND wdesc)
Geoff Voelker's avatar
Geoff Voelker committed
294 295 296 297
{
  Lisp_Object tail, frame;
  struct frame *f;

298
  FOR_EACH_FRAME (tail, frame)
Geoff Voelker's avatar
Geoff Voelker committed
299 300
    {
      f = XFRAME (frame);
301
      if (!FRAME_W32_P (f) || FRAME_DISPLAY_INFO (f) != dpyinfo)
Geoff Voelker's avatar
Geoff Voelker committed
302
	continue;
303

304
      if (FRAME_W32_WINDOW (f) == wdesc)
Geoff Voelker's avatar
Geoff Voelker committed
305 306 307 308 309 310
        return f;
    }
  return 0;
}


311
static Lisp_Object unwind_create_frame (Lisp_Object);
312
static void unwind_create_tip_frame (Lisp_Object);
313 314
static void my_create_window (struct frame *);
static void my_create_tip_window (struct frame *);
315

316
/* TODO: Native Input Method support; see x_create_im.  */
317 318 319 320 321 322 323 324 325 326 327 328
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);
329
void x_set_internal_border_width (struct frame *f, Lisp_Object, Lisp_Object);
Geoff Voelker's avatar
Geoff Voelker committed
330 331 332 333 334 335 336


/* 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
Dmitry Antipov's avatar
Dmitry Antipov committed
337
x_real_positions (struct frame *f, int *xptr, int *yptr)
Geoff Voelker's avatar
Geoff Voelker committed
338 339
{
  POINT pt;
Jason Rumney's avatar
Jason Rumney committed
340
  RECT rect;
341

342 343
  /* Get the bounds of the WM window.  */
  GetWindowRect (FRAME_W32_WINDOW (f), &rect);
Jason Rumney's avatar
Jason Rumney committed
344

345 346
  pt.x = 0;
  pt.y = 0;
Geoff Voelker's avatar
Geoff Voelker committed
347

348 349
  /* Convert (0, 0) in the client area to screen co-ordinates.  */
  ClientToScreen (FRAME_W32_WINDOW (f), &pt);
Geoff Voelker's avatar
Geoff Voelker committed
350

351 352
  *xptr = rect.left;
  *yptr = rect.top;
Geoff Voelker's avatar
Geoff Voelker committed
353 354
}

355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407
/* Returns the window rectangle appropriate for the given fullscreen mode.
   The normal rect parameter was the window's rectangle prior to entering
   fullscreen mode.  If multiple monitor support is available, the nearest
   monitor to the window is chosen.  */

void
w32_fullscreen_rect (HWND hwnd, int fsmode, RECT normal, RECT *rect)
{
  struct MONITOR_INFO mi = { sizeof(mi) };
  if (monitor_from_window_fn && get_monitor_info_fn)
    {
      HMONITOR monitor =
        monitor_from_window_fn (hwnd, MONITOR_DEFAULT_TO_NEAREST);
      get_monitor_info_fn (monitor, &mi);
    }
  else
    {
      mi.rcMonitor.left = 0;
      mi.rcMonitor.top = 0;
      mi.rcMonitor.right = GetSystemMetrics (SM_CXSCREEN);
      mi.rcMonitor.bottom = GetSystemMetrics (SM_CYSCREEN);
      mi.rcWork.left = 0;
      mi.rcWork.top = 0;
      mi.rcWork.right = GetSystemMetrics (SM_CXMAXIMIZED);
      mi.rcWork.bottom = GetSystemMetrics (SM_CYMAXIMIZED);
    }

  switch (fsmode)
    {
    case FULLSCREEN_BOTH:
      rect->left = mi.rcMonitor.left;
      rect->top = mi.rcMonitor.top;
      rect->right = mi.rcMonitor.right;
      rect->bottom = mi.rcMonitor.bottom;
      break;
    case FULLSCREEN_WIDTH:
      rect->left = mi.rcWork.left;
      rect->top = normal.top;
      rect->right = mi.rcWork.right;
      rect->bottom = normal.bottom;
      break;
    case FULLSCREEN_HEIGHT:
      rect->left = normal.left;
      rect->top = mi.rcWork.top;
      rect->right = normal.right;
      rect->bottom = mi.rcWork.bottom;
      break;
    default:
      *rect = normal;
      break;
    }
}

Geoff Voelker's avatar
Geoff Voelker committed
408 409


410 411
DEFUN ("w32-define-rgb-color", Fw32_define_rgb_color,
       Sw32_define_rgb_color, 4, 4, 0,
412
       doc: /* Convert RGB numbers to a Windows color reference and associate with NAME.
413
This adds or updates a named color to `w32-color-map', making it
414 415
available for use.  The original entry's RGB ref is returned, or nil
if the entry is new.  */)
416
  (Lisp_Object red, Lisp_Object green, Lisp_Object blue, Lisp_Object name)
Geoff Voelker's avatar
Geoff Voelker committed
417
{
418 419 420 421
  Lisp_Object rgb;
  Lisp_Object oldrgb = Qnil;
  Lisp_Object entry;

422 423 424 425
  CHECK_NUMBER (red);
  CHECK_NUMBER (green);
  CHECK_NUMBER (blue);
  CHECK_STRING (name);
Geoff Voelker's avatar
Geoff Voelker committed
426

427
  XSETINT (rgb, RGB (XUINT (red), XUINT (green), XUINT (blue)));
Geoff Voelker's avatar
Geoff Voelker committed
428

429
  block_input ();
Geoff Voelker's avatar
Geoff Voelker committed
430

431 432
  /* replace existing entry in w32-color-map or add new entry. */
  entry = Fassoc (name, Vw32_color_map);
433 434 435
  if (NILP (entry))
    {
      entry = Fcons (name, rgb);
436
      Vw32_color_map = Fcons (entry, Vw32_color_map);
437 438 439 440 441 442 443
    }
  else
    {
      oldrgb = Fcdr (entry);
      Fsetcdr (entry, rgb);
    }

444
  unblock_input ();
445 446

  return (oldrgb);
Geoff Voelker's avatar
Geoff Voelker committed
447 448
}

449
/* The default colors for the w32 color map */
Juanma Barranquero's avatar
Juanma Barranquero committed
450
typedef struct colormap_t
Geoff Voelker's avatar
Geoff Voelker committed
451 452 453 454 455
{
  char *name;
  COLORREF colorref;
} colormap_t;

Juanma Barranquero's avatar
Juanma Barranquero committed
456
colormap_t w32_color_map[] =
Geoff Voelker's avatar
Geoff Voelker committed
457
{
458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697
  {"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)},
Geoff Voelker's avatar
Geoff Voelker committed
698 699
};

700 701
static Lisp_Object
w32_default_color_map (void)
Geoff Voelker's avatar
Geoff Voelker committed
702 703
{
  int i;
704
  colormap_t *pc = w32_color_map;
Geoff Voelker's avatar
Geoff Voelker committed
705
  Lisp_Object cmap;
Juanma Barranquero's avatar
Juanma Barranquero committed
706

707
  block_input ();
Juanma Barranquero's avatar
Juanma Barranquero committed
708

Geoff Voelker's avatar
Geoff Voelker committed
709
  cmap = Qnil;
Juanma Barranquero's avatar
Juanma Barranquero committed
710

711
  for (i = 0; i < ARRAYELTS (w32_color_map); pc++, i++)
Geoff Voelker's avatar
Geoff Voelker committed
712 713 714
    cmap = Fcons (Fcons (build_string (pc->name),
			 make_number (pc->colorref)),
		  cmap);
Juanma Barranquero's avatar
Juanma Barranquero committed
715

716
  unblock_input ();
Juanma Barranquero's avatar
Juanma Barranquero committed
717

Geoff Voelker's avatar
Geoff Voelker committed
718 719 720
  return (cmap);
}

721 722 723 724 725 726 727
DEFUN ("w32-default-color-map", Fw32_default_color_map, Sw32_default_color_map,
       0, 0, 0, doc: /* Return the default color map.  */)
  (void)
{
  return w32_default_color_map ();
}

728
static Lisp_Object
729
w32_color_map_lookup (const char *colorname)
730 731 732
{
  Lisp_Object tail, ret = Qnil;

733
  block_input ();
734

735
  for (tail = Vw32_color_map; CONSP (tail); tail = XCDR (tail))
736 737 738
    {
      register Lisp_Object elt, tem;

739
      elt = XCAR (tail);
740 741
      if (!CONSP (elt)) continue;

742
      tem = XCAR (elt);
743

744
      if (lstrcmpi (SDATA (tem), colorname) == 0)
745
	{
746
	  ret = Fcdr (elt);
747 748 749 750 751 752
	  break;
	}

      QUIT;
    }

753
  unblock_input ();
754 755 756 757

  return ret;
}

758 759

static void
760
add_system_logical_colors_to_map (Lisp_Object *system_colors)
761 762 763 764
{
  HKEY colors_key;

  /* Other registry operations are done with input blocked.  */
765
  block_input ();
766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802

  /* 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);
    }

803
  unblock_input ();
804 805 806
}


807
static Lisp_Object
808
x_to_w32_color (const char * colorname)
Geoff Voelker's avatar
Geoff Voelker committed
809
{
810 811
  register Lisp_Object ret = Qnil;

812
  block_input ();
813 814 815 816

  if (colorname[0] == '#')
    {
      /* Could be an old-style RGB Device specification.  */
817 818
      int size = strlen (colorname + 1);
      char *color = alloca (size + 1);
Juanma Barranquero's avatar
Juanma Barranquero committed
819

820
      strcpy (color, colorname + 1);
821 822 823 824 825 826 827
      if (size == 3 || size == 6 || size == 9 || size == 12)
	{
	  UINT colorval;
	  int i, pos;
	  pos = 0;
	  size /= 3;
	  colorval = 0;
Juanma Barranquero's avatar
Juanma Barranquero committed
828

829 830 831 832 833 834 835 836 837
	  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.  */
838
	      if (!isxdigit (color[0]) || color[1] == 'x')
839 840 841
		break;
	      t = color[size];
	      color[size] = '\0';
842
	      value = strtoul (color, &end, 16);
843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863
	      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)
		{
864
		  unblock_input ();
865 866
		  XSETINT (ret, colorval);
		  return ret;
867 868 869 870 871
		}
	      color = end;
	    }
	}
    }
872
  else if (strnicmp (colorname, "rgb:", 4) == 0)
873
    {
874
      const char *color;
875 876 877 878 879 880 881 882 883 884
      UINT colorval;
      int i, pos;
      pos = 0;

      colorval = 0;
      color = colorname + 4;
      for (i = 0; i < 3; i++)
	{
	  char *end;
	  unsigned long value;
Juanma Barranquero's avatar
Juanma Barranquero committed
885

886 887 888
	  /* 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.  */
889
	  if (!isxdigit (color[0]) || color[1] == 'x')
890
	    break;
891
	  value = strtoul (color, &end, 16);
892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917
	  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;
918
	      unblock_input ();
919 920
	      XSETINT (ret, colorval);
	      return ret;
921 922 923 924 925 926
	    }
	  if (*end != '/')
	    break;
	  color = end + 1;
	}
    }
927
  else if (strnicmp (colorname, "rgbi:", 5) == 0)
928 929
    {
      /* This is an RGB Intensity specification.  */
930
      const char *color;
931 932 933 934 935 936 937 938 939 940 941 942
      UINT colorval;
      int i, pos;
      pos = 0;

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

943
	  value = strtod (color, &end);
944 945 946 947 948
	  if (errno == ERANGE)
	    break;
	  if (value < 0.0 || value > 1.0)
	    break;
	  val = (UINT)(0x100 * value);
Juanma Barranquero's avatar
Juanma Barranquero committed
949
	  /* We used 0x100 instead of 0xFF to give a continuous
950 951 952 953 954 955 956 957 958 959
             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;
960
	      unblock_input ();
961 962
	      XSETINT (ret, colorval);
	      return ret;
963 964 965 966 967 968 969 970 971
	    }
	  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.  */
972 973

  /* If we fail to lookup the color name in w32_color_map, then check the
Juanma Barranquero's avatar
Juanma Barranquero committed
974
     colorname to see if it can be crudely approximated: If the X color
975 976 977
     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);
Juanma Barranquero's avatar
Juanma Barranquero committed
978
  if (NILP (ret))
Geoff Voelker's avatar
Geoff Voelker committed
979
    {
980
      int len = strlen (colorname);
Geoff Voelker's avatar
Geoff Voelker committed
981

Juanma Barranquero's avatar
Juanma Barranquero committed
982
      if (isdigit (colorname[len - 1]))
983
	{
984
	  char *ptr, *approx = alloca (len + 1);
Geoff Voelker's avatar
Geoff Voelker committed
985

986 987
	  strcpy (approx, colorname);
	  ptr = &approx[len - 1];
Juanma Barranquero's avatar
Juanma Barranquero committed
988
	  while (ptr > approx && isdigit (*ptr))
989
	      *ptr-- = '\0';
Geoff Voelker's avatar
Geoff Voelker committed
990

991
	  ret = w32_color_map_lookup (approx);
Geoff Voelker's avatar
Geoff Voelker committed
992 993
	}
    }
Juanma Barranquero's avatar
Juanma Barranquero committed
994

995
  unblock_input ();
Geoff Voelker's avatar
Geoff Voelker committed
996 997 998
  return ret;
}

999
void
Dmitry Antipov's avatar
Dmitry Antipov committed
1000
w32_regenerate_palette (struct frame *f)
1001
{
1002
  struct w32_palette_entry * list;
1003 1004 1005 1006 1007
  LOGPALETTE *          log_palette;
  HPALETTE              new_palette;
  int                   i;

  /* don't bother trying to create palette if not supported */
1008
  if (! FRAME_DISPLAY_INFO (f)->has_palette)
1009 1010 1011 1012
    return;

  log_palette = (LOGPALETTE *)
    alloca (sizeof (LOGPALETTE) +
1013
	     FRAME_DISPLAY_INFO (f)->num_colors * sizeof (PALETTEENTRY));
1014
  log_palette->palVersion = 0x300;
1015
  log_palette->palNumEntries = FRAME_DISPLAY_INFO (f)->num_colors;
1016

1017
  list = FRAME_DISPLAY_INFO (f)->color_list;
1018
  for (i = 0;
1019
       i < FRAME_DISPLAY_INFO (f)->num_colors;
1020 1021 1022 1023 1024 1025 1026
       i++, list = list->next)
    log_palette->palPalEntry[i] = list->entry;

  new_palette = CreatePalette (log_palette);

  enter_crit ();

1027 1028 1029
  if (FRAME_DISPLAY_INFO (f)->palette)
    DeleteObject (FRAME_DISPLAY_INFO (f)->palette);
  FRAME_DISPLAY_INFO (f)->palette = new_palette;
1030 1031 1032 1033 1034 1035 1036

  /* Realize display palette and garbage all frames. */
  release_frame_dc (f, get_frame_dc (f));

  leave_crit ();
}

1037 1038
#define W32_COLOR(pe)  RGB (pe.peRed, pe.peGreen, pe.peBlue)
#define SET_W32_COLOR(pe, color) \
1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049
  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
Dmitry Antipov's avatar
Dmitry Antipov committed
1050
w32_map_color (struct frame *f, COLORREF color)
1051
{
1052
  struct w32_palette_entry * list = FRAME_DISPLAY_INFO (f)->color_list;
1053

1054
  if (NILP (Vw32_enable_palette))
1055 1056 1057 1058 1059
    return;

  /* check if color is already mapped */
  while (list)
    {
1060
      if (W32_COLOR (list->entry) == color)
1061 1062 1063 1064 1065 1066 1067 1068
        {
	  ++list->refcount;
	  return;
	}
      list = list->next;
    }

  /* not already mapped, so add to list and recreate Windows palette */
Dmitry Antipov's avatar
Dmitry Antipov committed
1069
  list = xmalloc (sizeof (struct w32_palette_entry));
1070
  SET_W32_COLOR (list->entry, color);
1071
  list->refcount = 1;
1072 1073 1074
  list->next = FRAME_DISPLAY_INFO (f)->color_list;
  FRAME_DISPLAY_INFO (f)->color_list = list;
  FRAME_DISPLAY_INFO (f)->num_colors++;
1075 1076

  /* set flag that palette must be regenerated */
1077
  FRAME_DISPLAY_INFO (f)->regen_palette = TRUE;
1078 1079 1080
}

void
Dmitry Antipov's avatar
Dmitry Antipov committed
1081
w32_unmap_color (struct frame *f, COLORREF color)
1082
{
1083 1084
  struct w32_palette_entry * list = FRAME_DISPLAY_INFO (f)->color_list;
  struct w32_palette_entry **prev = &FRAME_DISPLAY_INFO (f)->color_list;
1085

1086
  if (NILP (Vw32_enable_palette))
1087 1088 1089 1090 1091
    return;

  /* check if color is already mapped */
  while (list)
    {
1092
      if (W32_COLOR (list->entry) == color)
1093 1094 1095 1096 1097
        {
	  if (--list->refcount == 0)
	    {
	      *prev = list->next;
	      xfree (list);
1098
	      FRAME_DISPLAY_INFO (f)->num_colors--;
1099 1100 1101 1102 1103 1104 1105 1106 1107 1108
	      break;
	    }
	  else
	    return;
	}
      prev = &list->next;
      list = list->next;
    }

  /* set flag that palette must be regenerated */
1109
  FRAME_DISPLAY_INFO (f)->regen_palette = TRUE;
1110 1111 1112
}
#endif

1113 1114 1115 1116

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

void
1117
gamma_correct (struct frame *f, COLORREF *color)
1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128
{
  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);
    }
}


Geoff Voelker's avatar
Geoff Voelker committed
1129 1130 1131 1132 1133
/* 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
1134 1135
w32_defined_color (struct frame *f, const char *color, XColor *color_def,
		   bool alloc_p)
Geoff Voelker's avatar
Geoff Voelker committed
1136 1137
{
  register Lisp_Object tem;
1138
  COLORREF w32_color_ref;
1139

1140
  tem = x_to_w32_color (color);
1141

Juanma Barranquero's avatar
Juanma Barranquero committed
1142
  if (!NILP (tem))
Geoff Voelker's avatar
Geoff Voelker committed
1143
    {
1144 1145 1146 1147 1148 1149 1150
      if (f)
        {
          /* Apply gamma correction.  */
          w32_color_ref = XUINT (tem);
          gamma_correct (f, &w32_color_ref);
          XSETINT (tem, w32_color_ref);
        }
1151 1152

      /* Map this color to the palette if it is enabled. */
1153
      if (!NILP (Vw32_enable_palette))
1154
	{
1155
	  struct w32_palette_entry * entry =
1156
	    one_w32_display_info.color_list;
1157
	  struct w32_palette_entry ** prev =
1158
	    &one_w32_display_info.color_list;
Juanma Barranquero's avatar
Juanma Barranquero committed
1159

1160 1161 1162
	  /* check if color is already mapped */
	  while (entry)
	    {
1163
	      if (W32_COLOR (entry->entry) == XUINT (tem))
1164 1165 1166 1167 1168
		break;
	      prev = &entry->next;
	      entry = entry->next;
	    }

1169
	  if (entry == NULL && alloc_p)
1170 1171
	    {
	      /* not already mapped, so add to list */
Dmitry Antipov's avatar
Dmitry Antipov committed
1172
	      entry = xmalloc (sizeof (struct w32_palette_entry));
1173
	      SET_W32_COLOR (entry->entry, XUINT (tem));
1174 1175
	      entry->next = NULL;
	      *prev = entry;
1176
	      one_w32_display_info.num_colors++;
1177 1178

	      /* set flag that palette must be regenerated */
1179
	      one_w32_display_info.regen_palette = TRUE;
1180 1181 1182 1183 1184
	    }
	}
      /* 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. */
1185 1186 1187
      w32_color_ref = XUINT (tem) | 0x2000000;

      color_def->pixel = w32_color_ref;
1188 1189 1190
      color_def->red = GetRValue (w32_color_ref) * 256;
      color_def->green = GetGValue (w32_color_ref) * 256;
      color_def->blue = GetBValue (w32_color_ref) * 256;
1191

Geoff Voelker's avatar
Geoff Voelker committed
1192
      return 1;
1193
    }
Juanma Barranquero's avatar
Juanma Barranquero committed
1194
  else
1195 1196 1197
    {
      return 0;
    }
Geoff Voelker's avatar
Geoff Voelker committed
1198 1199 1200 1201 1202 1203 1204 1205
}

/* 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
Dmitry Antipov's avatar
Dmitry Antipov committed
1206
x_decode_color (struct frame *f, Lisp_Object arg, int def)
Geoff Voelker's avatar
Geoff Voelker committed
1207
{
1208
  XColor cdef;
Geoff Voelker's avatar
Geoff Voelker committed
1209

1210
  CHECK_STRING (arg);
Geoff Voelker's avatar
Geoff Voelker committed
1211

1212
  if (strcmp (SDATA (arg), "black") == 0)
Geoff Voelker's avatar
Geoff Voelker committed
1213
    return BLACK_PIX_DEFAULT (f);
1214
  else if (strcmp (SDATA (arg), "white") == 0)
Geoff Voelker's avatar
Geoff Voelker committed
1215 1216
    return WHITE_PIX_DEFAULT (f);

1217
  if ((FRAME_DISPLAY_INFO (f)->n_planes * FRAME_DISPLAY_INFO (f)->n_cbits) == 1)
Geoff Voelker's avatar
Geoff Voelker committed
1218 1219
    return def;

1220
  /* w32_defined_color is responsible for coping with failures
Geoff Voelker's avatar
Geoff Voelker committed
1221
     by looking for a near-miss.  */
1222
  if (w32_defined_color (f, SDATA (arg), &cdef, true))
1223
    return cdef.pixel;
Geoff Voelker's avatar
Geoff Voelker committed
1224 1225 1226 1227 1228

  /* defined_color failed; return an ultimate default.  */
  return def;
}

1229 1230