w32term.c 178 KB
Newer Older
1
/* Implementation of GUI terminal on the Microsoft W32 API.
2 3
   Copyright (C) 1989, 1993, 1994, 1995, 1996, 1997, 1998,
                 1999, 2000, 2001, 2002, 2003, 2004, 2005,
Glenn Morris's avatar
Glenn Morris committed
4
                 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
Geoff Voelker's avatar
Geoff Voelker committed
5 6 7

This file is part of GNU Emacs.

8
GNU Emacs is free software: you can redistribute it and/or modify
Geoff Voelker's avatar
Geoff Voelker committed
9
it under the terms of the GNU General Public License as published by
10 11
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Geoff Voelker's avatar
Geoff Voelker committed
12 13 14 15 16 17 18

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

#include <config.h>
22
#include <signal.h>
Geoff Voelker's avatar
Geoff Voelker committed
23
#include <stdio.h>
24
#include <stdlib.h>
25
#include <setjmp.h>
Geoff Voelker's avatar
Geoff Voelker committed
26 27
#include "lisp.h"
#include "blockinput.h"
28
#include "w32term.h"
Geoff Voelker's avatar
Geoff Voelker committed
29 30 31 32 33 34 35

#include "systty.h"
#include "systime.h"

#include <ctype.h>
#include <errno.h>
#include <sys/stat.h>
36
#include <imm.h>
Geoff Voelker's avatar
Geoff Voelker committed
37

38 39 40 41
#include "charset.h"
#include "character.h"
#include "coding.h"
#include "ccl.h"
Geoff Voelker's avatar
Geoff Voelker committed
42 43
#include "frame.h"
#include "dispextern.h"
44
#include "fontset.h"
Geoff Voelker's avatar
Geoff Voelker committed
45 46 47 48 49 50
#include "termhooks.h"
#include "termopts.h"
#include "termchar.h"
#include "disptab.h"
#include "buffer.h"
#include "window.h"
51
#include "keyboard.h"
Geoff Voelker's avatar
Geoff Voelker committed
52
#include "intervals.h"
53 54 55 56 57 58
#include "process.h"
#include "atimer.h"
#include "keymap.h"

#include "w32heap.h"
#include <shellapi.h>
Geoff Voelker's avatar
Geoff Voelker committed
59

Jason Rumney's avatar
Jason Rumney committed
60
#include "font.h"
61
#include "w32font.h"
62

Kim F. Storm's avatar
Kim F. Storm committed
63
/* Fringe bitmaps.  */
64

65 66
static int max_fringe_bmp = 0;
static HBITMAP *fringe_bmp = 0;
67

68
/* Non-nil means Emacs uses toolkit scroll bars.  */
69

70
Lisp_Object Vx_toolkit_scroll_bars;
71

72
/* Temporary variables for w32_read_socket.  */
73

74 75
static int last_mousemove_x = 0;
static int last_mousemove_y = 0;
76

77 78 79 80 81
/* Define GET_WHEEL_DELTA_WPARAM macro if system headers don't.  */
#ifndef GET_WHEEL_DELTA_WPARAM
#define GET_WHEEL_DELTA_WPARAM(wparam) ((short)HIWORD (wparam))
#endif

82 83 84 85 86
/* Non-zero means that a HELP_EVENT has been generated since Emacs
   start.  */

static int any_help_event_p;

87 88 89
/* Last window where we saw the mouse.  Used by mouse-autoselect-window.  */
static Lisp_Object last_window;

90
/* Non-zero means make use of UNDERLINE_POSITION font properties.  */
91 92
int x_use_underline_position_properties;

93 94 95 96
/* Non-zero means to draw the underline at the same place as the descent line.  */

int x_underline_at_descent_line;

Geoff Voelker's avatar
Geoff Voelker committed
97 98
extern unsigned int msh_mousewheel;

99
extern void free_frame_menubar (struct frame *);
Geoff Voelker's avatar
Geoff Voelker committed
100

101
extern int w32_codepage_for_font (char *fontname);
102
extern Cursor w32_load_cursor (LPCTSTR name);
103

Geoff Voelker's avatar
Geoff Voelker committed
104 105
extern Lisp_Object Vwindow_system;

Geoff Voelker's avatar
Geoff Voelker committed
106 107 108 109
#define x_any_window_to_frame x_window_to_frame
#define x_top_window_to_frame x_window_to_frame


110 111
/* This is display since w32 does not support multiple ones.  */
struct w32_display_info one_w32_display_info;
Andrew Innes's avatar
Andrew Innes committed
112
struct w32_display_info *x_display_list;
Geoff Voelker's avatar
Geoff Voelker committed
113 114

/* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE),
115
   one for each element of w32_display_list and in the same order.
Geoff Voelker's avatar
Geoff Voelker committed
116 117
   NAME is the name of the frame.
   FONT-LIST-CACHE records previous values returned by x-list-fonts.  */
118
Lisp_Object w32_display_name_list;
Geoff Voelker's avatar
Geoff Voelker committed
119

120 121 122 123 124 125 126 127 128 129 130

#ifndef GLYPHSET
/* Pre Windows 2000, this was not available, but define it here so
   that Emacs compiled on such a platform will run on newer versions.  */

typedef struct tagWCRANGE
{
  WCHAR wcLow;
  USHORT cGlyphs;
} WCRANGE;

Juanma Barranquero's avatar
Juanma Barranquero committed
131
typedef struct tagGLYPHSET
132 133 134 135 136 137
{
  DWORD cbThis;
  DWORD flAccel;
  DWORD cGlyphsSupported;
  DWORD cRanges;
  WCRANGE ranges[1];
Juanma Barranquero's avatar
Juanma Barranquero committed
138
} GLYPHSET;
139 140 141

#endif

142
/* Dynamic linking to SetLayeredWindowAttribute (only since 2000).  */
143
BOOL (WINAPI *pfnSetLayeredWindowAttributes) (HWND, COLORREF, BYTE, DWORD);
144 145 146 147

#ifndef LWA_ALPHA
#define LWA_ALPHA 0x02
#endif
148 149 150 151 152
/* WS_EX_LAYERED is defined unconditionally by MingW, but only for W2K and
   later targets by MSVC headers.  */
#ifndef WS_EX_LAYERED
#define WS_EX_LAYERED 0x80000
#endif
153

Geoff Voelker's avatar
Geoff Voelker committed
154 155
/* Frame being updated by update_frame.  This is declared in term.c.
   This is set by update_begin and looked at by all the
156
   w32 functions.  It is zero while not inside an update.
157
   In that case, the w32 functions assume that `SELECTED_FRAME ()'
Geoff Voelker's avatar
Geoff Voelker committed
158 159 160 161 162 163
   is the frame to apply to.  */
extern struct frame *updating_frame;

/* This is a frame waiting to be autoraised, within w32_read_socket.  */
struct frame *pending_autoraise_frame;

164 165 166 167 168
/* The handle of the frame that currently owns the system caret.  */
HWND w32_system_caret_hwnd;
int w32_system_caret_height;
int w32_system_caret_x;
int w32_system_caret_y;
169
int w32_use_visible_system_caret;
170

171 172
DWORD dwWindowsThreadId = 0;
HANDLE hWindowsThread = NULL;
Geoff Voelker's avatar
Geoff Voelker committed
173 174 175
DWORD dwMainThreadId = 0;
HANDLE hMainThread = NULL;

176 177 178 179 180 181
int vertical_scroll_bar_min_handle;
int vertical_scroll_bar_top_border;
int vertical_scroll_bar_bottom_border;

int last_scroll_bar_drag_pos;

Geoff Voelker's avatar
Geoff Voelker committed
182 183 184 185
/* Mouse movement. */

/* Where the mouse was last time we reported a mouse event.  */
static RECT last_mouse_glyph;
186
static FRAME_PTR last_mouse_glyph_frame;
187
static Lisp_Object last_mouse_press_frame;
Geoff Voelker's avatar
Geoff Voelker committed
188

189
int w32_num_mouse_buttons;
Geoff Voelker's avatar
Geoff Voelker committed
190

191
Lisp_Object Vw32_swap_mouse_buttons;
Geoff Voelker's avatar
Geoff Voelker committed
192

193 194 195 196 197 198
/* Control whether x_raise_frame also sets input focus.  */
Lisp_Object Vw32_grab_focus_on_raise;

/* Control whether Caps Lock affects non-ascii characters.  */
Lisp_Object Vw32_capslock_is_shiftlock;

199 200 201
/* Control whether right-alt and left-ctrl should be recognized as AltGr.  */
Lisp_Object Vw32_recognize_altgr;

Geoff Voelker's avatar
Geoff Voelker committed
202 203 204
/* The scroll bar in which the last motion event occurred.

   If the last motion event occurred in a scroll bar, we set this
205
   so w32_mouse_position can know whether to report a scroll bar motion or
Geoff Voelker's avatar
Geoff Voelker committed
206 207 208
   an ordinary motion.

   If the last motion event didn't occur in a scroll bar, we set this
209
   to Qnil, to tell w32_mouse_position to return an ordinary motion event.  */
210 211
static Lisp_Object last_mouse_scroll_bar;
static int last_mouse_scroll_bar_pos;
Geoff Voelker's avatar
Geoff Voelker committed
212

213
/* This is a hack.  We would really prefer that w32_mouse_position would
Geoff Voelker's avatar
Geoff Voelker committed
214
   return the time associated with the position it returns, but there
215
   doesn't seem to be any way to wrest the time-stamp from the server
Geoff Voelker's avatar
Geoff Voelker committed
216 217 218
   along with the position query.  So, we just keep track of the time
   of the last movement we received, and return that in hopes that
   it's somewhat accurate.  */
219 220 221 222
static Time last_mouse_movement_time;

/* Incremented by w32_read_socket whenever it really tries to read
   events.  */
Geoff Voelker's avatar
Geoff Voelker committed
223 224 225 226 227 228 229 230 231
#ifdef __STDC__
static int volatile input_signal_count;
#else
static int input_signal_count;
#endif

extern Lisp_Object Vcommand_line_args, Vsystem_name;

/* A mask of extra modifier bits to put into every keyboard char.  */
232
extern EMACS_INT extra_keyboard_modifiers;
Geoff Voelker's avatar
Geoff Voelker committed
233

234 235 236
/* Keyboard code page - may be changed by language-change events.  */
static int keyboard_codepage;

237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
static void x_update_window_end (struct window *, int, int);
static void w32_handle_tool_bar_click (struct frame *,
                                       struct input_event *);
static void w32_define_cursor (Window, Cursor);

void x_lower_frame (struct frame *);
void x_scroll_bar_clear (struct frame *);
void x_wm_set_size_hint (struct frame *, long, int);
void x_raise_frame (struct frame *);
void x_set_window_size (struct frame *, int, int, int);
void x_wm_set_window_state (struct frame *, int);
void x_wm_set_icon_pixmap (struct frame *, int);
static void w32_initialize (void);
static void x_update_end (struct frame *);
static void w32_frame_up_to_date (struct frame *);
static void w32_set_terminal_modes (struct terminal *);
static void w32_reset_terminal_modes (struct terminal *);
static void x_clear_frame (struct frame *);
static void frame_highlight (struct frame *);
static void frame_unhighlight (struct frame *);
static void x_new_focus_frame (struct w32_display_info *,
                               struct frame *);
static void x_focus_changed (int, int, struct w32_display_info *,
                             struct frame *, struct input_event *);
static void w32_detect_focus_change (struct w32_display_info *,
                                     W32Msg *, struct input_event *);
static void w32_frame_rehighlight (struct frame *);
static void x_frame_rehighlight (struct w32_display_info *);
static void x_draw_hollow_cursor (struct window *, struct glyph_row *);
static void x_draw_bar_cursor (struct window *, struct glyph_row *, int,
                               enum text_cursor_kinds);
static void w32_clip_to_row (struct window *, struct glyph_row *, int, HDC);
static BOOL my_show_window (struct frame *, HWND, int);
static void my_set_window_pos (HWND, HWND, int, int, int, int, UINT);
static void my_set_focus (struct frame *, HWND);
static void my_set_foreground_window (HWND);
static void my_destroy_window (struct frame *, HWND);
274

Geoff Voelker's avatar
Geoff Voelker committed
275 276 277
static Lisp_Object Qvendor_specific_keysyms;


278 279 280 281
/***********************************************************************
			      Debugging
 ***********************************************************************/

Geoff Voelker's avatar
Geoff Voelker committed
282
#if 0
283 284 285

/* This is a function useful for recording debugging information about
   the sequence of occurrences in this file.  */
Geoff Voelker's avatar
Geoff Voelker committed
286

287
struct record
Geoff Voelker's avatar
Geoff Voelker committed
288 289 290 291 292 293 294 295 296
{
  char *locus;
  int type;
};

struct record event_record[100];

int event_record_index;

297
record_event (char *locus, int type)
Geoff Voelker's avatar
Geoff Voelker committed
298 299 300 301 302 303 304 305 306 307 308
{
  if (event_record_index == sizeof (event_record) / sizeof (struct record))
    event_record_index = 0;

  event_record[event_record_index].locus = locus;
  event_record[event_record_index].type = type;
  event_record_index++;
}

#endif /* 0 */

309

310
void
311
XChangeGC (void *ignore, XGCValues *gc, unsigned long mask,
312
	   XGCValues *xgcv)
313 314 315 316 317 318 319 320 321
{
  if (mask & GCForeground)
    gc->foreground = xgcv->foreground;
  if (mask & GCBackground)
    gc->background = xgcv->background;
  if (mask & GCFont)
    gc->font = xgcv->font;
}

322 323
XGCValues *
XCreateGC (void *ignore, Window window, unsigned long mask, XGCValues *xgcv)
324 325
{
  XGCValues *gc = (XGCValues *) xmalloc (sizeof (XGCValues));
326
  memset (gc, 0, sizeof (XGCValues));
327 328 329 330 331 332

  XChangeGC (ignore, gc, mask, xgcv);

  return gc;
}

333
void
334 335
XGetGCValues (void *ignore, XGCValues *gc,
	      unsigned long mask, XGCValues *xgcv)
336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375
{
  XChangeGC (ignore, xgcv, mask, gc);
}

static void
w32_set_clip_rectangle (HDC hdc, RECT *rect)
{
  if (rect)
    {
      HRGN clip_region = CreateRectRgnIndirect (rect);
      SelectClipRgn (hdc, clip_region);
      DeleteObject (clip_region);
    }
  else
    SelectClipRgn (hdc, NULL);
}


/* Draw a hollow rectangle at the specified position.  */
void
w32_draw_rectangle (HDC hdc, XGCValues *gc, int x, int y,
                    int width, int height)
{
  HBRUSH hb, oldhb;
  HPEN hp, oldhp;

  hb = CreateSolidBrush (gc->background);
  hp = CreatePen (PS_SOLID, 0, gc->foreground);
  oldhb = SelectObject (hdc, hb);
  oldhp = SelectObject (hdc, hp);

  Rectangle (hdc, x, y, x + width, y + height);

  SelectObject (hdc, oldhb);
  SelectObject (hdc, oldhp);
  DeleteObject (hb);
  DeleteObject (hp);
}

/* Draw a filled rectangle at the specified position. */
376
void
377
w32_fill_rect (FRAME_PTR f, HDC hdc, COLORREF pix, RECT *lprect)
Geoff Voelker's avatar
Geoff Voelker committed
378 379
{
  HBRUSH hb;
380

Geoff Voelker's avatar
Geoff Voelker committed
381 382 383 384 385
  hb = CreateSolidBrush (pix);
  FillRect (hdc, lprect, hb);
  DeleteObject (hb);
}

386
void
387
w32_clear_window (FRAME_PTR f)
Geoff Voelker's avatar
Geoff Voelker committed
388 389
{
  RECT rect;
390
  HDC hdc = get_frame_dc (f);
Geoff Voelker's avatar
Geoff Voelker committed
391

392 393 394 395 396 397 398 399 400
  /* Under certain conditions, this can be called at startup with
     a console frame pointer before the GUI frame is created. An HDC
     of 0 indicates this. */
  if (hdc)
    {
      GetClientRect (FRAME_W32_WINDOW (f), &rect);
      w32_clear_rect (f, hdc, &rect);
    }

401
  release_frame_dc (f, hdc);
Geoff Voelker's avatar
Geoff Voelker committed
402 403
}

404 405 406
#define OPAQUE_FRAME 255

void
407
x_set_frame_alpha (struct frame *f)
408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429
{
  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
  double alpha = 1.0;
  double alpha_min = 1.0;
  BYTE opac;
  LONG ex_style;
  HWND window = FRAME_W32_WINDOW (f);

  /* Older versions of Windows do not support transparency.  */
  if (!pfnSetLayeredWindowAttributes)
    return;

  if (dpyinfo->x_highlight_frame == f)
    alpha = f->alpha[0];
  else
    alpha = f->alpha[1];

  if (FLOATP (Vframe_alpha_lower_limit))
    alpha_min = XFLOAT_DATA (Vframe_alpha_lower_limit);
  else if (INTEGERP (Vframe_alpha_lower_limit))
    alpha_min = (XINT (Vframe_alpha_lower_limit)) / 100.0;

430 431 432
  if (alpha < 0.0)
    return;
  else if (alpha > 1.0)
433 434 435 436 437 438 439 440 441
    alpha = 1.0;
  else if (alpha < alpha_min && alpha_min <= 1.0)
    alpha = alpha_min;

  opac = alpha * OPAQUE_FRAME;

  ex_style = GetWindowLong (window, GWL_EXSTYLE);

  if (opac == OPAQUE_FRAME)
Jason Rumney's avatar
Jason Rumney committed
442
    ex_style &= ~WS_EX_LAYERED;
443 444 445 446 447 448 449 450 451
  else
    ex_style |= WS_EX_LAYERED;

  SetWindowLong (window, GWL_EXSTYLE, ex_style);

  if (opac != OPAQUE_FRAME)
    pfnSetLayeredWindowAttributes (window, 0, opac, LWA_ALPHA);
}

452
int
453
x_display_pixel_height (struct w32_display_info *dpyinfo)
454
{
455 456 457 458
  HDC dc = GetDC (NULL);
  int pixels = GetDeviceCaps (dc, VERTRES);
  ReleaseDC (NULL, dc);
  return pixels;
459 460 461
}

int
462
x_display_pixel_width (struct w32_display_info *dpyinfo)
463
{
464 465 466 467
  HDC dc = GetDC (NULL);
  int pixels = GetDeviceCaps (dc, HORZRES);
  ReleaseDC (NULL, dc);
  return pixels;
468 469
}

Geoff Voelker's avatar
Geoff Voelker committed
470

471 472 473
/***********************************************************************
		    Starting and ending an update
 ***********************************************************************/
474

475 476 477
/* Start an update of frame F.  This function is installed as a hook
   for update_begin, i.e. it is called when update_begin is called.
   This function is called prior to calls to x_update_window_begin for
478
   each window being updated.  */
Geoff Voelker's avatar
Geoff Voelker committed
479

480
static void
481
x_update_begin (struct frame *f)
Geoff Voelker's avatar
Geoff Voelker committed
482
{
483 484
  struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);

Andrew Innes's avatar
Andrew Innes committed
485 486 487
  if (! FRAME_W32_P (f))
    return;

488 489 490 491 492 493 494
  /* Regenerate display palette before drawing if list of requested
     colors has changed. */
  if (display_info->regen_palette)
  {
    w32_regenerate_palette (f);
    display_info->regen_palette = FALSE;
  }
495
}
Geoff Voelker's avatar
Geoff Voelker committed
496

497 498 499 500 501 502

/* Start update of window W.  Set the global variable updated_window
   to the window being updated and set output_cursor to the cursor
   position of W.  */

static void
503
x_update_window_begin (struct window *w)
504 505 506 507
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
  struct w32_display_info *display_info = FRAME_W32_DISPLAY_INFO (f);

508
  /* Hide the system caret during an update.  */
509 510 511 512
  if (w32_use_visible_system_caret && w32_system_caret_hwnd)
    {
      SendMessage (w32_system_caret_hwnd, WM_EMACS_HIDE_CARET, 0, 0);
    }
513

514 515
  updated_window = w;
  set_output_cursor (&w->cursor);
Geoff Voelker's avatar
Geoff Voelker committed
516 517 518

  BLOCK_INPUT;

519
  if (f == display_info->mouse_face_mouse_frame)
Geoff Voelker's avatar
Geoff Voelker committed
520 521
    {
      /* Don't do highlighting for mouse motion during the update.  */
522
      display_info->mouse_face_defer = 1;
Geoff Voelker's avatar
Geoff Voelker committed
523

524 525
      /* If F needs to be redrawn, simply forget about any prior mouse
	 highlighting.  */
Geoff Voelker's avatar
Geoff Voelker committed
526
      if (FRAME_GARBAGED_P (f))
527 528
	display_info->mouse_face_window = Qnil;

529 530 531 532 533 534
#if 0 /* Rows in a current matrix containing glyphs in mouse-face have
	 their mouse_face_p flag set, which means that they are always
	 unequal to rows in a desired matrix which never have that
	 flag set.  So, rows containing mouse-face glyphs are never
	 scrolled, and we don't have to switch the mouse highlight off
	 here to prevent it from being scrolled.  */
535

536 537 538 539 540 541 542
      /* Can we tell that this update does not affect the window
	 where the mouse highlight is?  If so, no need to turn off.
	 Likewise, don't do anything if the frame is garbaged;
	 in that case, the frame's current matrix that we would use
	 is all wrong, and we will redisplay that line anyway.  */
      if (!NILP (display_info->mouse_face_window)
	  && w == XWINDOW (display_info->mouse_face_window))
Geoff Voelker's avatar
Geoff Voelker committed
543
	{
544
	  int i;
Geoff Voelker's avatar
Geoff Voelker committed
545

546 547
          for (i = 0; i < w->desired_matrix->nrows; ++i)
	    if (MATRIX_ROW_ENABLED_P (w->desired_matrix, i))
Geoff Voelker's avatar
Geoff Voelker committed
548 549
	      break;

550 551
	  if (i < w->desired_matrix->nrows)
	    clear_mouse_face (display_info);
Geoff Voelker's avatar
Geoff Voelker committed
552
	}
553
#endif /* 0 */
Geoff Voelker's avatar
Geoff Voelker committed
554 555 556 557 558
    }

  UNBLOCK_INPUT;
}

559
/* Draw a vertical window border from (x,y0) to (x,y1)  */
560

561
static void
562
w32_draw_vertical_window_border (struct window *w, int x, int y0, int y1)
Geoff Voelker's avatar
Geoff Voelker committed
563
{
564
  struct frame *f = XFRAME (WINDOW_FRAME (w));
565 566
  RECT r;
  HDC hdc;
567
  struct face *face;
568

569 570 571 572
  r.left = x;
  r.right = x + 1;
  r.top = y0;
  r.bottom = y1;
573

574
  hdc = get_frame_dc (f);
575 576 577 578 579 580
  face = FACE_FROM_ID (f, VERTICAL_BORDER_FACE_ID);
  if (face)
    w32_fill_rect (f, hdc, face->foreground, &r);
  else
    w32_fill_rect (f, hdc, FRAME_FOREGROUND_PIXEL (f), &r);

581
  release_frame_dc (f, hdc);
582
}
Geoff Voelker's avatar
Geoff Voelker committed
583

584

585 586 587 588 589 590 591 592 593 594 595 596
/* End update of window W (which is equal to updated_window).

   Draw vertical borders between horizontally adjacent windows, and
   display W's cursor if CURSOR_ON_P is non-zero.

   MOUSE_FACE_OVERWRITTEN_P non-zero means that some row containing
   glyphs in mouse-face were overwritten.  In that case we have to
   make sure that the mouse-highlight is properly redrawn.

   W may be a menu bar pseudo-window in case we don't have X toolkit
   support. Such windows don't have a cursor, so don't display it
   here. */
597 598

static void
599 600
x_update_window_end (struct window *w, int cursor_on_p,
		     int mouse_face_overwritten_p)
601
{
602
  struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (XFRAME (w->frame));
603

604 605 606
  if (!w->pseudo_window_p)
    {
      BLOCK_INPUT;
607

608
      if (cursor_on_p)
609 610 611
	display_and_set_cursor (w, 1, output_cursor.hpos,
				output_cursor.vpos,
				output_cursor.x, output_cursor.y);
612

613 614
      if (draw_window_fringes (w, 1))
	x_draw_vertical_border (w);
Kenichi Handa's avatar
Kenichi Handa committed
615

616 617
      UNBLOCK_INPUT;
    }
618 619 620 621 622 623 624 625 626 627

  /* If a row with mouse-face was overwritten, arrange for
     XTframe_up_to_date to redisplay the mouse highlight.  */
  if (mouse_face_overwritten_p)
    {
      dpyinfo->mouse_face_beg_row = dpyinfo->mouse_face_beg_col = -1;
      dpyinfo->mouse_face_end_row = dpyinfo->mouse_face_end_col = -1;
      dpyinfo->mouse_face_window = Qnil;
    }

628 629 630
  /* Unhide the caret.  This won't actually show the cursor, unless it
     was visible before the corresponding call to HideCaret in
     x_update_window_begin.  */
631 632 633 634
  if (w32_use_visible_system_caret && w32_system_caret_hwnd)
    {
      SendMessage (w32_system_caret_hwnd, WM_EMACS_SHOW_CARET, 0, 0);
    }
635

636 637 638
  updated_window = NULL;
}

639 640 641 642

/* End update of frame F.  This function is installed as a hook in
   update_end.  */

643
static void
644
x_update_end (struct frame *f)
645
{
Andrew Innes's avatar
Andrew Innes committed
646 647 648
  if (! FRAME_W32_P (f))
    return;

649 650
  /* Mouse highlight may be displayed again.  */
  FRAME_W32_DISPLAY_INFO (f)->mouse_face_defer = 0;
Geoff Voelker's avatar
Geoff Voelker committed
651 652
}

653

654 655 656
/* This function is called from various places in xdisp.c whenever a
   complete update has been performed.  The global variable
   updated_window is not available here.  */
Geoff Voelker's avatar
Geoff Voelker committed
657

658
static void
659
w32_frame_up_to_date (struct frame *f)
Geoff Voelker's avatar
Geoff Voelker committed
660
{
661
  if (FRAME_W32_P (f))
Geoff Voelker's avatar
Geoff Voelker committed
662
    {
663
      struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f);
664

665 666 667 668 669 670 671 672 673 674 675
      if (dpyinfo->mouse_face_deferred_gc
	  || f == dpyinfo->mouse_face_mouse_frame)
	{
	  BLOCK_INPUT;
	  if (dpyinfo->mouse_face_mouse_frame)
	    note_mouse_highlight (dpyinfo->mouse_face_mouse_frame,
				  dpyinfo->mouse_face_mouse_x,
				  dpyinfo->mouse_face_mouse_y);
	  dpyinfo->mouse_face_deferred_gc = 0;
	  UNBLOCK_INPUT;
	}
Geoff Voelker's avatar
Geoff Voelker committed
676 677
    }
}
678 679 680


/* Draw truncation mark bitmaps, continuation mark bitmaps, overlay
Kim F. Storm's avatar
Kim F. Storm committed
681
   arrow bitmaps, or clear the fringes if no bitmaps are required
682
   before DESIRED_ROW is made current.  The window being updated is
683
   found in updated_window.  This function is called from
684 685 686 687
   update_window_line only if it is known that there are differences
   between bitmaps to be drawn between current row and DESIRED_ROW.  */

static void
688
x_after_update_window_line (struct glyph_row *desired_row)
689 690
{
  struct window *w = updated_window;
691 692 693
  struct frame *f;
  int width, height;

694
  xassert (w);
695

696
  if (!desired_row->mode_line_p && !w->pseudo_window_p)
Kenichi Handa's avatar
Kenichi Handa committed
697
    desired_row->redraw_fringe_bitmaps_p = 1;
698

699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
  /* When a window has disappeared, make sure that no rest of
     full-width rows stays visible in the internal border.  Could
     check here if updated_window is the leftmost/rightmost window,
     but I guess it's not worth doing since vertically split windows
     are almost never used, internal border is rarely set, and the
     overhead is very small.  */
  if (windows_or_buffers_changed
      && desired_row->full_width_p
      && (f = XFRAME (w->frame),
	  width = FRAME_INTERNAL_BORDER_WIDTH (f),
	  width != 0)
      && (height = desired_row->visible_height,
	  height > 0))
    {
      int y = WINDOW_TO_FRAME_PIXEL_Y (w, max (0, desired_row->y));
714

715 716 717 718
      BLOCK_INPUT;
      {
	HDC hdc = get_frame_dc (f);
	w32_clear_area (f, hdc, 0, y, width, height);
719
	w32_clear_area (f, hdc, FRAME_PIXEL_WIDTH (f) - width,
720 721 722
			y, width, height);
	release_frame_dc (f, hdc);
      }
723 724 725 726 727
      UNBLOCK_INPUT;
    }
}


Kim F. Storm's avatar
Kim F. Storm committed
728
/* Draw the bitmap WHICH in one of the left or right fringes of
729 730 731 732 733
   window W.  ROW is the glyph row for which to display the bitmap; it
   determines the vertical position at which the bitmap has to be
   drawn.  */

static void
734 735
w32_draw_fringe_bitmap (struct window *w, struct glyph_row *row,
			struct draw_fringe_bitmap_params *p)
736 737
{
  struct frame *f = XFRAME (WINDOW_FRAME (w));
Kim F. Storm's avatar
Kim F. Storm committed
738 739 740 741
  HDC hdc;
  struct face *face = p->face;

  hdc = get_frame_dc (f);
742

743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796
  if (!p->overlay_p)
    {
      int bx = p->bx, by = p->by, nx = p->nx, ny = p->ny;

      /* If the fringe is adjacent to the left (right) scroll bar of a
	 leftmost (rightmost, respectively) window, then extend its
	 background to the gap between the fringe and the bar.  */
      if ((WINDOW_LEFTMOST_P (w)
	   && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w))
	  || (WINDOW_RIGHTMOST_P (w)
	      && WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
	{
	  int sb_width = WINDOW_CONFIG_SCROLL_BAR_WIDTH (w);

	  if (sb_width > 0)
	    {
	      int left = WINDOW_SCROLL_BAR_AREA_X (w);
	      int width = (WINDOW_CONFIG_SCROLL_BAR_COLS (w)
			   * FRAME_COLUMN_WIDTH (f));

	      if (bx < 0)
		{
		  /* Bitmap fills the fringe.  */
		  if (left + width == p->x)
		    bx = left + sb_width;
		  else if (p->x + p->wd == left)
		    bx = left;
		  if (bx >= 0)
		    {
		      int header_line_height = WINDOW_HEADER_LINE_HEIGHT (w);

		      nx = width - sb_width;
		      by = WINDOW_TO_FRAME_PIXEL_Y (w, max (header_line_height,
							    row->y));
		      ny = row->visible_height;
		    }
		}
	      else
		{
		  if (left + width == bx)
		    {
		      bx = left + sb_width;
		      nx += width - sb_width;
		    }
		  else if (bx + nx == left)
		    nx += width - sb_width;
		}
	    }
	}

      if (bx >= 0 && nx > 0)
	w32_fill_area (f, hdc, face->background, bx, by, nx, ny);
    }

797
  /* Must clip because of partially visible lines.  */
798
  w32_clip_to_row (w, row, -1, hdc);
799

800
  if (p->which && p->which < max_fringe_bmp)
Kim F. Storm's avatar
Kim F. Storm committed
801 802 803 804
    {
      HBITMAP pixmap = fringe_bmp[p->which];
      HDC compat_hdc;
      HANDLE horig_obj;
805

Kim F. Storm's avatar
Kim F. Storm committed
806
      compat_hdc = CreateCompatibleDC (hdc);
Kenichi Handa's avatar
Kenichi Handa committed
807

Kim F. Storm's avatar
Kim F. Storm committed
808
      SaveDC (hdc);
809

Kim F. Storm's avatar
Kim F. Storm committed
810
      horig_obj = SelectObject (compat_hdc, pixmap);
811

Kenichi Handa's avatar
Kenichi Handa committed
812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845
      /* Paint overlays transparently.  */
      if (p->overlay_p)
	{
	  HBRUSH h_brush, h_orig_brush;

	  SetTextColor (hdc, BLACK_PIX_DEFAULT (f));
	  SetBkColor (hdc, WHITE_PIX_DEFAULT (f));
	  h_brush = CreateSolidBrush (face->foreground);
	  h_orig_brush = SelectObject (hdc, h_brush);

	  BitBlt (hdc, p->x, p->y, p->wd, p->h,
		  compat_hdc, 0, p->dh,
		  DSTINVERT);
	  BitBlt (hdc, p->x, p->y, p->wd, p->h,
		  compat_hdc, 0, p->dh,
		  0x2E064A);
	  BitBlt (hdc, p->x, p->y, p->wd, p->h,
		  compat_hdc, 0, p->dh,
		  DSTINVERT);

	  SelectObject (hdc, h_orig_brush);
	  DeleteObject (h_brush);
	}
      else
	{
	  SetTextColor (hdc, face->background);
	  SetBkColor (hdc, (p->cursor_p
			    ? f->output_data.w32->cursor_pixel
			    : face->foreground));

	  BitBlt (hdc, p->x, p->y, p->wd, p->h,
		  compat_hdc, 0, p->dh,
		  SRCCOPY);
	}
846

Kim F. Storm's avatar
Kim F. Storm committed
847 848 849
      SelectObject (compat_hdc, horig_obj);
      DeleteDC (compat_hdc);
      RestoreDC (hdc, -1);
850
    }
851

Kim F. Storm's avatar
Kim F. Storm committed
852
  w32_set_clip_rectangle (hdc, NULL);
853 854 855 856

  release_frame_dc (f, hdc);
}

Kenichi Handa's avatar
Kenichi Handa committed
857
static void
858
w32_define_fringe_bitmap (int which, unsigned short *bits, int h, int wd)
Kenichi Handa's avatar
Kenichi Handa committed
859
{
860 861 862 863 864 865 866 867 868
  if (which >= max_fringe_bmp)
    {
      int i = max_fringe_bmp;
      max_fringe_bmp = which + 20;
      fringe_bmp = (HBITMAP *) xrealloc (fringe_bmp, max_fringe_bmp * sizeof (HBITMAP));
      while (i < max_fringe_bmp)
	fringe_bmp[i++] = 0;
    }

Kenichi Handa's avatar
Kenichi Handa committed
869 870 871 872
  fringe_bmp[which] = CreateBitmap (wd, h, 1, 1, bits);
}

static void
873
w32_destroy_fringe_bitmap (int which)
Kenichi Handa's avatar
Kenichi Handa committed
874
{
875 876 877
  if (which >= max_fringe_bmp)
    return;

Kenichi Handa's avatar
Kenichi Handa committed
878 879 880 881 882 883
  if (fringe_bmp[which])
    DeleteObject (fringe_bmp[which]);
  fringe_bmp[which] = 0;
}


Geoff Voelker's avatar
Geoff Voelker committed
884

885 886 887 888
/* This is called when starting Emacs and when restarting after
   suspend.  When starting Emacs, no window is mapped.  And nothing
   must be done to Emacs's own window if it is suspended (though that
   rarely happens).  */
Geoff Voelker's avatar
Geoff Voelker committed
889

890
static void
891
w32_set_terminal_modes (struct terminal *term)
Geoff Voelker's avatar
Geoff Voelker committed
892 893 894
{
}

895 896
/* This is called when exiting or suspending Emacs. Exiting will make
   the W32 windows go away, and suspending requires no action. */
Geoff Voelker's avatar
Geoff Voelker committed
897

898
static void
899
w32_reset_terminal_modes (struct terminal *term)
Geoff Voelker's avatar
Geoff Voelker committed
900 901
{
}
902

903

904

905 906 907 908 909 910
/***********************************************************************
			   Display Iterator
 ***********************************************************************/

/* Function prototypes of this page.  */

911 912 913 914 915 916 917 918 919 920 921
static void x_set_glyph_string_clipping (struct glyph_string *);
static void x_set_glyph_string_gc (struct glyph_string *);
static void x_draw_glyph_string_background (struct glyph_string *,
                                            int);
static void x_draw_glyph_string_foreground (struct glyph_string *);
static void x_draw_composite_glyph_string_foreground (struct glyph_string *);
static void x_draw_glyph_string_box (struct glyph_string *);
static void x_draw_glyph_string  (struct glyph_string *);
static void x_set_cursor_gc (struct glyph_string *);
static void x_set_mode_line_face_gc (struct glyph_string *);
static void x_set_mouse_face_gc (struct glyph_string *);
922
static int w32_alloc_lighter_color (struct frame *, COLORREF *, double, int);
923 924 925 926 927 928 929 930 931 932 933 934 935 936
static void w32_setup_relief_color (struct frame *, struct relief *,
                                    double, int, COLORREF);
static void x_setup_relief_colors (struct glyph_string *);
static void x_draw_image_glyph_string (struct glyph_string *);
static void x_draw_image_relief (struct glyph_string *);
static void x_draw_image_foreground (struct glyph_string *);
static void w32_draw_image_foreground_1 (struct glyph_string *, HBITMAP);
static void x_clear_glyph_string_rect (struct glyph_string *, int,
                                       int, int, int);
static void w32_draw_relief_rect (struct frame *, int, int, int, int,
                                  int, int, int, int, int, int,
                                  RECT *);
static void w32_draw_box_rect (struct glyph_string *, int, int, int, int,
                               int, int, int, RECT *);
937

938

939 940 941 942
/* Set S->gc to a suitable GC for drawing glyph string S in cursor
   face.  */

static void
943
x_set_cursor_gc (struct glyph_string *s)
944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991
{
  if (s->font == FRAME_FONT (s->f)
      && s->face->background == FRAME_BACKGROUND_PIXEL (s->f)
      && s->face->foreground == FRAME_FOREGROUND_PIXEL (s->f)
      && !s->cmp)
    s->gc = s->f->output_data.w32->cursor_gc;
  else
    {
      /* Cursor on non-default face: must merge.  */
      XGCValues xgcv;
      unsigned long mask;

      xgcv.background = s->f->output_data.w32->cursor_pixel;
      xgcv.foreground = s->face->background;

      /* If the glyph would be invisible, try a different foreground.  */
      if (xgcv.foreground == xgcv.background)
	xgcv.foreground = s->face->foreground;
      if (xgcv.foreground == xgcv.background)
	xgcv.foreground = s->f->output_data.w32->cursor_foreground_pixel;
      if (xgcv.foreground == xgcv.background)
	xgcv.foreground = s->face->foreground;

      /* Make sure the cursor is distinct from text in this face.  */
      if (xgcv.background == s->face->background
	  && xgcv.foreground == s->face->foreground)
	{
	  xgcv.background = s->face->foreground;
	  xgcv.foreground = s->face->background;
	}

      IF_DEBUG (x_check_font (s->f, s->font));
      xgcv.font = s->font;
      mask = GCForeground | GCBackground | GCFont;

      if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
	XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
		   mask, &xgcv);
      else
	FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
	  = XCreateGC (NULL, s->window, mask, &xgcv);

      s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
    }
}


/* Set up S->gc of glyph string S for drawing text in mouse face.  */
992

993
static void
994
x_set_mouse_face_gc (struct glyph_string *s)
995
{
996
  int face_id;
997
  struct face *face;
998

999
  /* What face has to be used last for the mouse face?  */
1000
  face_id = FRAME_W32_DISPLAY_INFO (s->f)->mouse_face_face_id;
1001
  face = FACE_FROM_ID (s->f, face_id);
1002 1003
  if (face == NULL)
    face = FACE_FROM_ID (s->f, MOUSE_FACE_ID);
1004

1005
  if (s->first_glyph->type == CHAR_GLYPH)
1006
    face_id = FACE_FOR_CHAR (s->f, face, s->first_glyph->u.ch, -1, Qnil);
1007
  else
1008
    face_id = FACE_FOR_CHAR (s->f, face, 0, -1, Qnil);
1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020
  s->face = FACE_FROM_ID (s->f, face_id);
  PREPARE_FACE_FOR_DISPLAY (s->f, s->face);

  /* If font in this face is same as S->font, use it.  */
  if (s->font == s->face->font)
    s->gc = s->face->gc;
  else
    {
      /* Otherwise construct scratch_cursor_gc with values from FACE
	 but font FONT.  */
      XGCValues xgcv;
      unsigned long mask;
1021

1022 1023 1024 1025 1026
      xgcv.background = s->face->background;
      xgcv.foreground = s->face->foreground;
      IF_DEBUG (x_check_font (s->f, s->font));
      xgcv.font = s->font;
      mask = GCForeground | GCBackground | GCFont;
1027

1028 1029 1030 1031 1032 1033
      if (FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc)
	XChangeGC (NULL, FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc,
		   mask, &xgcv);
      else
	FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc
	  = XCreateGC (NULL, s->window, mask, &xgcv);
1034

1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046
      s->gc = FRAME_W32_DISPLAY_INFO (s->f)->scratch_cursor_gc;
    }

  xassert (s->gc != 0);
}


/* Set S->gc of glyph string S to a GC suitable for drawing a mode line.
   Faces to use in the mode line have already been computed when the
   matrix was built, so there isn't much to do, here.  */

static INLINE void
1047
x_set_mode_line_face_gc (struct glyph_string *s)
1048
{
1049 1050 1051 1052 1053 1054 1055 1056 1057
  s->gc = s->face->gc;
}


/* Set S->gc of glyph string S for drawing that glyph string.  Set
   S->stippled_p to a non-zero value if the face of S has a stipple
   pattern.  */

static INLINE void
1058
x_set_glyph_string_gc (struct glyph_string *s)
1059
{
1060
  PREPARE_FACE_FOR_DISPLAY (s->f, s->face);
1061

1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102
  if (s->hl == DRAW_NORMAL_TEXT)
    {
      s->gc = s->face->gc;
      s->stippled_p = s->face->stipple != 0;
    }
  else if (s->hl == DRAW_INVERSE_VIDEO)
    {
      x_set_mode_line_face_gc (s);
      s->stippled_p = s->face->stipple != 0;
    }
  else if (s->hl == DRAW_CURSOR)
    {
      x_set_cursor_gc (s);
      s->stippled_p = 0;
    }
  else if (s->hl == DRAW_MOUSE_FACE)
    {
      x_set_mouse_face_gc (s);
      s->stippled_p = s->face->stipple != 0;
    }
  else if (s->hl == DRAW_IMAGE_RAISED
	   || s->hl == DRAW_IMAGE_SUNKEN)
    {
      s->gc = s->face->gc;
      s->stippled_p = s->face->stipple != 0;
    }
  else
    {
      s->gc = s->face->gc;
      s->stippled_p = s->face->stipple != 0;
    }

  /* GC must have been set.  */
  xassert (s->gc != 0);
}


/* Set clipping for output of glyph string S.  S may be part of a mode
   line or menu if we don't have X toolkit support.  */

static INLINE void
1103
x_set_glyph_string_clipping (struct glyph_string *s)
1104
{
1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123
  RECT *r = s->clip;
  int n = get_glyph_string_clip_rects (s, r, 2);

  if (n == 1)
    w32_set_clip_rectangle (s->hdc, r);
  else if (n > 1)
    {
      HRGN full_clip, clip1, clip2;
      clip1 = CreateRectRgnIndirect (r);
      clip2 = CreateRectRgnIndirect (r + 1);
      if (CombineRgn (full_clip, clip1, clip2, RGN_OR) != ERROR)
        {
          SelectClipRgn (s->hdc, full_clip);
        }
      DeleteObject (clip1);
      DeleteObject (clip2);
      DeleteObject (full_clip);
    }
    s->num_clips = n;
1124 1125
}

Jason Rumney's avatar
Jason Rumney committed
1126 1127 1128 1129 1130
/* Set SRC's clipping for output of glyph string DST.  This is called
   when we are drawing DST's left_overhang or right_overhang only in
   the area of SRC.  */

static void
1131 1132
x_set_glyph_string_clipping_exactly (struct glyph_string *src,
				     struct glyph_string *dst)
Jason Rumney's avatar
Jason Rumney committed
1133 1134 1135
{
  RECT r;

1136 1137 1138 1139 1140 1141
  r.left = src->x;
  r.right = r.left + src->width;
  r.top = src->y;
  r.bottom = r.top + src->height;
  dst->clip[0] = r;
  dst->num_clips = 1;
Jason Rumney's avatar
Jason Rumney committed
1142 1143
  w32_set_clip_rectangle (dst->hdc, &r);
}
1144

1145
/* RIF:
1146
   Compute left and right overhang of glyph string S.  */
1147

1148
static void
1149
w32_compute_glyph_string_overhangs (struct glyph_string *s)
1150
{
1151
  if (s->cmp == NULL
1152 1153
      && s->first_glyph->type == CHAR_GLYPH
      && !s->font_not_found_p)
1154
    {
1155 1156 1157 1158
      unsigned *code = alloca (sizeof (unsigned) * s->nchars);
      struct font *font = s->font;
      struct font_metrics metrics;
      int i;
1159

1160 1161 1162 1163 1164 1165
      for (i = 0; i < s->nchars; i++)
	code[i] = s->char2b[i];
      font->driver->text_extents (font, code, s->nchars, &metrics);
      s->right_overhang = (metrics.rbearing > metrics.width
			   ? metrics.rbearing - metrics.width : 0);
      s->left_overhang = metrics.lbearing < 0 ? -metrics.lbearing : 0;
1166 1167 1168 1169 1170 1171
    }
  else if (s->cmp)
    {
      s->right_overhang = s->cmp->rbearing - s->cmp->pixel_width;
      s->left_overhang = -s->cmp->lbearing;
    }
1172 1173 1174 1175 1176
}

/* Fill rectangle X, Y, W, H with background color of glyph string S.  */

static INLINE void
1177 1178
x_clear_glyph_string_rect (struct glyph_string *s,
			   int x, int y, int w, int h)
1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207
{
  int real_x = x;
  int real_y = y;
  int real_w = w;
  int real_h = h;
#if 0
  /* Take clipping into account.  */
  if (s->gc->clip_mask == Rect)
    {
      real_x = max (real_x, s->gc->clip_rectangle.left);
      real_y = max (real_y, s->gc->clip_rectangle.top);
      real_w = min (real_w, s->gc->clip_rectangle.right
                    - s->gc->clip_rectangle.left);
      real_h = min (real_h, s->gc->clip_rectangle.bottom
                    - s->gc->clip_rectangle.top);
    }
#endif
  w32_fill_area (s->f, s->hdc, s->gc->background, real_x, real_y,
                 real_w, real_h);
}


/* Draw the background of glyph_string S.  If S->background_filled_p
   is non-zero don't draw it.  FORCE_P non-zero means draw the
   background even if it wouldn't be drawn normally.  This is used
   when a string preceding S draws into the background of S, or S
   contains the first component of a composition.  */

static void
1208
x_draw_glyph_string_background (struct glyph_string *s, int force_p)
1209 1210 1211 1212 1213
{
  /* Nothing to do if background has already been drawn or if it
     shouldn't be drawn in the first place.  */
  if (!s->background_filled_p)
    {
1214 1215
      int box_line_width = max (s->face->box_line_width, 0);

1216
#if 0 /* TODO: stipple */
1217 1218 1219 1220 1221
      if (s->stippled_p)
	{
	  /* Fill background with a stipple pattern.  */
	  XSetFillStyle (s->display, s->gc, FillOpaqueStippled);
	  XFillRectangle (s->display, s->window, s->gc, s->x,
1222
			  s->y + box_line_width,
1223
			  s->background_width,
1224
			  s->height - 2 * box_line_width);
1225 1226 1227 1228 1229
	  XSetFillStyle (s->display, s->gc, FillSolid);
	  s->background_filled_p = 1;
	}
      else
#endif
1230
        if (FONT_HEIGHT (s->font) < s->height - 2 * box_line_width
1231 1232 1233 1234
	       || s->font_not_found_p
	       || s->extends_to_end_of_line_p
	       || force_p)
	{
1235
	  x_clear_glyph_string_rect (s, s->x, s->y + box_line_width,
1236
				     s->background_width,
1237
				     s->height - 2 * box_line_width);
1238 1239 1240 1241 1242 1243 1244 1245 1246
	  s->background_filled_p = 1;
	}
    }
}


/* Draw the foreground of glyph string S.  */

static void
1247
x_draw_glyph_string_foreground (struct glyph_string *s)
1248 1249 1250 1251 1252 1253 1254
{
  int i, x;

  /* If first glyph of S has a left box line, start drawing the text
     of S to the right of that box line.  */
  if (s->face->box != FACE_NO_BOX
      && s->first_glyph->left_box_line_p)
Eli Zaretskii's avatar
Eli Zaretskii committed
1255
    x = s->x + eabs (s->face->box_line_width);
1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275
  else
    x = s->x;

  SetTextColor (s->hdc, s->gc->foreground);
  SetBkColor (s->hdc, s->gc->background);
  SetTextAlign (s->hdc, TA_BASELINE | TA_LEFT);

  /* Draw characters of S as rectangles if S's font could not be
     loaded. */
  if (s->font_not_found_p)
    {
      for (i = 0; i < s->nchars; ++i)
        {
          struct glyph *g = s->first_glyph + i;

          w32_draw_rectangle (s->hdc, s->gc, x, s->y, g->pixel_width - 1,
                              s->height - 1);
          x += g->pixel_width;
        }
    }
1276
  else
Jason Rumney's avatar
Jason Rumney committed
1277
    {
1278 1279
      struct font *font = s->font;
      int boff = font->baseline_offset;
Jason Rumney's avatar
Jason Rumney committed
1280
      int y;
1281 1282 1283
      HFONT old_font;

      old_font = SelectObject (s->hdc, FONT_HANDLE (font));
Jason Rumney's avatar
Jason Rumney committed
1284