src/nsterm.h

   1 /* Definitions and headers for communication with NeXT/Open/GNUstep API.
   2    Copyright (C) 1989, 1993, 2005, 2008-2016 Free Software Foundation,
   3    Inc.
   4
   5 This file is part of GNU Emacs.
   6
   7 GNU Emacs is free software: you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation, either version 3 of the License, or (at
  10 your option) any later version.
  11
  12 GNU Emacs is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 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/>.  */
  19
  20
  21 #include "dispextern.h"
  22 #include "frame.h"
  23 #include "character.h"
  24 #include "font.h"
  25 #include "sysselect.h"
  26
  27 #ifdef HAVE_NS
  28
  29 #ifdef NS_IMPL_COCOA
  30 #ifndef MAC_OS_X_VERSION_10_6
  31 #define MAC_OS_X_VERSION_10_6 1060
  32 #endif
  33 #ifndef MAC_OS_X_VERSION_10_7
  34 #define MAC_OS_X_VERSION_10_7 1070
  35 #endif
  36 #ifndef MAC_OS_X_VERSION_10_8
  37 #define MAC_OS_X_VERSION_10_8 1080
  38 #endif
  39 #ifndef MAC_OS_X_VERSION_10_9
  40 #define MAC_OS_X_VERSION_10_9 1090
  41 #endif
  42
  43 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
  44 #define HAVE_NATIVE_FS
  45 #endif
  46
  47 #endif /* NS_IMPL_COCOA */
  48
  49 #ifdef __OBJC__
  50
  51 /* CGFloat on GNUstep may be 4 or 8 byte, but functions expect float* for some
  52    versions.
  53    On Cocoa >= 10.5, functions expect CGFloat*. Make compatible type.  */
  54 #ifdef NS_IMPL_COCOA
  55 typedef CGFloat EmacsCGFloat;
  56 #elif GNUSTEP_GUI_MAJOR_VERSION > 0 || GNUSTEP_GUI_MINOR_VERSION >= 22
  57 typedef CGFloat EmacsCGFloat;
  58 #else
  59 typedef float EmacsCGFloat;
  60 #endif
  61
  62 /* ==========================================================================
  63
  64    Trace support
  65
  66    ========================================================================== */
  67
  68 /* Uncomment the following line to enable trace.
  69
  70    Uncomment suitable NSTRACE_GROUP_xxx lines to trace more.
  71
  72    Hint: keep the trailing whitespace -- the version control system
  73    will reject accidental commits. */
  74
  75 /* #define NSTRACE_ENABLED 1          */
  76
  77
  78 /* When non-zero, trace output is enabled for all parts, except those
  79    explicitly disabled. */
  80 /* #define NSTRACE_ALL_GROUPS     1     */
  81
  82 /* When non-zero, trace output is enabled in the corresponding part. */
  83 /* #define NSTRACE_GROUP_EVENTS  1     */
  84 /* #define NSTRACE_GROUP_UPDATES 1     */
  85 /* #define NSTRACE_GROUP_FRINGE  1     */
  86 /* #define NSTRACE_GROUP_COLOR   1     */
  87 /* #define NSTRACE_GROUP_GLYPHS  1     */
  88 /* #define NSTRACE_GROUP_FOCUS   1     */
  89
  90
  91 /* Print a call tree containing all annotated functions.
  92
  93    The call structure of the functions is represented using
  94    indentation and vertical lines.  Extra information is printed using
  95    horizontal lines that connect to the vertical line.
  96
  97    The return value is represented using the arrow "->>".  For simple
  98    functions, the arrow can be printed on the same line as the
  99    function name.  If more output is printed, it is connected to the
 100    vertical line of the function.
 101
 102    The first column contains the file name, the second the line
 103    number, and the third a number increasing for each trace line.
 104
 105    Note, when trace output from several threads are mixed, the output
 106    can become misaligned, as all threads (currently) share one state.
 107    This is post prominent when the EVENTS part is enabled.
 108
 109    Note that the trace system, when enabled, use the GCC/Clang
 110    "cleanup" extension. */
 111
 112 /*   For example, the following is the output of `M-x
 113      toggle-frame-maximized RET'.
 114
 115      (Long lines manually split to reduced width):
 116
 117 nsterm.m  : 1608: [  354]  ns_fullscreen_hook
 118 nsterm.m  : 7180: [  355]  | [EmacsView handleFS]
 119 nsterm.m  : 7209: [  356]  | +--- FULLSCREEN_MAXIMIZED
 120 nsterm.m  : 7706: [  357]  | | [EmacsWindow performZoom:]
 121 nsterm.m  : 7715: [  358]  | | | [EmacsWindow zoom:]
 122 nsterm.m  :  882: [  359]  | | | | ns_update_auto_hide_menu_bar
 123 nsterm.m  : 6752: [  360]  | | | |
 124   [EmacsView windowWillUseStandardFrame:defaultFrame:(X:0 Y:0)/(W:1600 H:1177)]
 125 nsterm.m  : 6753: [  361]  | | | | +--- fs_state: FULLSCREEN_NONE
 126 nsterm.m  : 6754: [  362]  | | | | +--- fs_before_fs: -1
 127 nsterm.m  : 6755: [  363]  | | | | +--- next_maximized: FULLSCREEN_MAXIMIZED
 128 nsterm.m  : 6756: [  364]  | | | | +--- ns_userRect: (X:0 Y:0)/(W:0 H:0)
 129 nsterm.m  : 6757: [  365]  | | | | +---
 130                                       [sender frame]: (X:0 Y:626)/(W:595 H:551)
 131 nsterm.m  : 6781: [  366]  | | | | +---
 132                                      ns_userRect (2): (X:0 Y:626)/(W:595 H:551)
 133 nsterm.m  : 6821: [  367]  | | | | +--- FULLSCREEN_MAXIMIZED
 134 nsterm.m  : 7232: [  368]  | | | | |
 135                                     [EmacsView setFSValue:FULLSCREEN_MAXIMIZED]
 136 nsterm.m  : 6848: [  369]  | | | | +---
 137                                    Final ns_userRect: (X:0 Y:626)/(W:595 H:551)
 138 nsterm.m  : 6849: [  370]  | | | | +--- Final maximized_width: 1600
 139 nsterm.m  : 6850: [  371]  | | | | +--- Final maximized_height: 1177
 140 nsterm.m  : 6851: [  372]  | | | | +--- Final next_maximized: -1
 141 nsterm.m  : 6322: [  373]  | | | | |
 142                            [EmacsView windowWillResize:toSize: (W:1600 H:1177)]
 143 nsterm.m  : 6323: [  374]  | | | | | +---
 144                                       [sender frame]: (X:0 Y:626)/(W:595 H:551)
 145 nsterm.m  : 6324: [  375]  | | | | | +--- fs_state: FULLSCREEN_MAXIMIZED
 146 nsterm.m  : 7027: [  376]  | | | | | | [EmacsView isFullscreen]
 147 nsterm.m  : 6387: [  377]  | | | | | +--- cols: 223  rows: 79
 148 nsterm.m  : 6412: [  378]  | | | | | +->> (W:1596 H:1167)
 149 nsterm.m  : 6855: [  379]  | | | | +->> (X:0 Y:0)/(W:1600 H:1177)
 150 */
 151
 152 #ifndef NSTRACE_ENABLED
 153 #define NSTRACE_ENABLED 0
 154 #endif
 155
 156 #if NSTRACE_ENABLED
 157
 158 #ifndef NSTRACE_ALL_GROUPS
 159 #define NSTRACE_ALL_GROUPS 0
 160 #endif
 161
 162 #ifndef NSTRACE_GROUP_EVENTS
 163 #define NSTRACE_GROUP_EVENTS NSTRACE_ALL_GROUPS
 164 #endif
 165
 166 #ifndef NSTRACE_GROUP_UPDATES
 167 #define NSTRACE_GROUP_UPDATES NSTRACE_ALL_GROUPS
 168 #endif
 169
 170 #ifndef NSTRACE_GROUP_FRINGE
 171 #define NSTRACE_GROUP_FRINGE NSTRACE_ALL_GROUPS
 172 #endif
 173
 174 #ifndef NSTRACE_GROUP_COLOR
 175 #define NSTRACE_GROUP_COLOR NSTRACE_ALL_GROUPS
 176 #endif
 177
 178 #ifndef NSTRACE_GROUP_GLYPHS
 179 #define NSTRACE_GROUP_GLYPHS NSTRACE_ALL_GROUPS
 180 #endif
 181
 182 #ifndef NSTRACE_GROUP_FOCUS
 183 #define NSTRACE_GROUP_FOCUS NSTRACE_ALL_GROUPS
 184 #endif
 185
 186 extern volatile int nstrace_num;
 187 extern volatile int nstrace_depth;
 188 extern volatile int nstrace_enabled_global;
 189
 190 void nstrace_leave(int *);
 191 void nstrace_restore_global_trace_state(int *);
 192 char const * nstrace_fullscreen_type_name (int);
 193
 194 /* printf-style trace output.  Output is aligned with contained heading. */
 195 #define NSTRACE_MSG_NO_DASHES(...)                                          \
 196   do                                                                        \
 197     {                                                                       \
 198       if (nstrace_enabled)                                                  \
 199         {                                                                   \
 200           fprintf (stderr, "%-10s:%5d: [%5d]%.*s",                          \
 201                    __FILE__, __LINE__, nstrace_num++,                       \
 202                    2*nstrace_depth, "  | | | | | | | | | | | | | | | ..");  \
 203           fprintf (stderr, __VA_ARGS__);                                    \
 204           fprintf (stderr, "\n");                                           \
 205         }                                                                   \
 206     }                                                                       \
 207   while(0)
 208
 209 #define NSTRACE_MSG(...) NSTRACE_MSG_NO_DASHES("+--- " __VA_ARGS__)
 210
 211
 212
 213 /* Macros for printing complex types.
 214
 215    NSTRACE_FMT_what     -- Printf format string for "what".
 216    NSTRACE_ARG_what(x)  -- Printf argument for "what". */
 217
 218 #define NSTRACE_FMT_SIZE        "(W:%.0f H:%.0f)"
 219 #define NSTRACE_ARG_SIZE(elt)   (elt).width, (elt).height
 220
 221 #define NSTRACE_FMT_POINT       "(X:%.0f Y:%.0f)"
 222 #define NSTRACE_ARG_POINT(elt)  (elt).x, (elt).y
 223
 224 #define NSTRACE_FMT_RECT        NSTRACE_FMT_POINT "/" NSTRACE_FMT_SIZE
 225 #define NSTRACE_ARG_RECT(elt)   \
 226   NSTRACE_ARG_POINT((elt).origin), NSTRACE_ARG_SIZE((elt).size)
 227
 228 #define NSTRACE_FMT_FSTYPE      "%s"
 229 #define NSTRACE_ARG_FSTYPE(elt) nstrace_fullscreen_type_name(elt)
 230
 231
 232 /* Macros for printing complex types as extra information. */
 233
 234 #define NSTRACE_SIZE(str,size)                                          \
 235   NSTRACE_MSG (str ": " NSTRACE_FMT_SIZE,                               \
 236                NSTRACE_ARG_SIZE (size));
 237
 238 #define NSTRACE_POINT(str,point)                                        \
 239   NSTRACE_MSG (str ": " NSTRACE_FMT_POINT,                              \
 240                NSTRACE_ARG_POINT (point));
 241
 242 #define NSTRACE_RECT(str,rect)                                          \
 243   NSTRACE_MSG (str ": " NSTRACE_FMT_RECT,                               \
 244                NSTRACE_ARG_RECT (rect));
 245
 246 #define NSTRACE_FSTYPE(str,fs_type)                                     \
 247   NSTRACE_MSG (str ": " NSTRACE_FMT_FSTYPE,                             \
 248                NSTRACE_ARG_FSTYPE (fs_type));
 249
 250
 251 /* Return value macros.
 252
 253    NSTRACE_RETURN(fmt, ...) - Print a return value, support printf-style
 254                               format string and arguments.
 255
 256    NSTRACE_RETURN_what(obj) - Print a return value of kind WHAT.
 257
 258    NSTRACE_FMT_RETURN - A string literal representing a returned
 259                         value.  Useful when creating a format string
 260                         to printf-like constructs like NSTRACE(). */
 261
 262 #define NSTRACE_FMT_RETURN "->>"
 263
 264 #define NSTRACE_RETURN(...) \
 265   NSTRACE_MSG_NO_DASHES ("+" NSTRACE_FMT_RETURN " " __VA_ARGS__)
 266
 267 #define NSTRACE_RETURN_SIZE(size) \
 268   NSTRACE_RETURN(NSTRACE_FMT_SIZE, NSTRACE_ARG_SIZE(size))
 269
 270 #define NSTRACE_RETURN_POINT(point) \
 271   NSTRACE_RETURN(NSTRACE_FMT_POINT, NSTRACE_ARG_POINT(point))
 272
 273 #define NSTRACE_RETURN_RECT(rect) \
 274   NSTRACE_RETURN(NSTRACE_FMT_RECT, NSTRACE_ARG_RECT(rect))
 275
 276
 277 /* Function enter macros.
 278
 279    NSTRACE (fmt, ...) -- Enable trace output in current block
 280                          (typically a function).  Accepts printf-style
 281                          arguments.
 282
 283    NSTRACE_WHEN (cond, fmt, ...) -- Enable trace output when COND is true.
 284
 285    NSTRACE_UNLESS (cond, fmt, ...) -- Enable trace output unless COND is
 286                                       true. */
 287
 288
 289
 290 #define NSTRACE_WHEN(cond, ...)                                         \
 291   __attribute__((cleanup(nstrace_restore_global_trace_state)))          \
 292   int nstrace_saved_enabled_global = nstrace_enabled_global;            \
 293   __attribute__((cleanup(nstrace_leave)))                               \
 294   int nstrace_enabled = nstrace_enabled_global && (cond);               \
 295   if (nstrace_enabled) { ++nstrace_depth; }                             \
 296   else { nstrace_enabled_global = 0; }                                  \
 297   NSTRACE_MSG_NO_DASHES(__VA_ARGS__);
 298
 299 /* Unsilence called functions.
 300
 301    Concretely, this us used to allow "event" functions to be silenced
 302    while trace output can be printed for functions they call. */
 303 #define NSTRACE_UNSILENCE() do { nstrace_enabled_global = 1; } while(0)
 304
 305 #endif /* NSTRACE_ENABLED */
 306
 307 #define NSTRACE(...)              NSTRACE_WHEN(1, __VA_ARGS__)
 308 #define NSTRACE_UNLESS(cond, ...) NSTRACE_WHEN(!(cond), __VA_ARGS__)
 309
 310 /* Non-trace replacement versions. */
 311 #ifndef NSTRACE_WHEN
 312 #define NSTRACE_WHEN(...)
 313 #endif
 314
 315 #ifndef NSTRACE_MSG
 316 #define NSTRACE_MSG(...)
 317 #endif
 318
 319 #ifndef NSTRACE_SIZE
 320 #define NSTRACE_SIZE(str,size)
 321 #endif
 322
 323 #ifndef NSTRACE_POINT
 324 #define NSTRACE_POINT(str,point)
 325 #endif
 326
 327 #ifndef NSTRACE_RECT
 328 #define NSTRACE_RECT(str,rect)
 329 #endif
 330
 331 #ifndef NSTRACE_FSTYPE
 332 #define NSTRACE_FSTYPE(str,fs_type)
 333 #endif
 334
 335 #ifndef NSTRACE_RETURN_SIZE
 336 #define NSTRACE_RETURN_SIZE(size)
 337 #endif
 338
 339 #ifndef NSTRACE_RETURN_POINT
 340 #define NSTRACE_RETURN_POINT(point)
 341 #endif
 342
 343 #ifndef NSTRACE_RETURN_RECT
 344 #define NSTRACE_RETURN_RECT(rect)
 345 #endif
 346
 347 #ifndef NSTRACE_RETURN_FSTYPE
 348 #define NSTRACE_RETURN_FSTYPE(fs_type)
 349 #endif
 350
 351 #ifndef NSTRACE_UNSILENCE
 352 #define NSTRACE_UNSILENCE()
 353 #endif
 354
 355
 356 /* ==========================================================================
 357
 358    NSColor, EmacsColor category.
 359
 360    ========================================================================== */
 361 @interface NSColor (EmacsColor)
 362 + (NSColor *)colorForEmacsRed:(CGFloat)red green:(CGFloat)green
 363                          blue:(CGFloat)blue alpha:(CGFloat)alpha;
 364 - (NSColor *)colorUsingDefaultColorSpace;
 365
 366 @end
 367
 368 /* ==========================================================================
 369
 370    The Emacs application
 371
 372    ========================================================================== */
 373
 374 /* We override sendEvent: as a means to stop/start the event loop */
 375 @interface EmacsApp : NSApplication
 376 {
 377 #ifdef NS_IMPL_COCOA
 378   BOOL shouldKeepRunning;
 379   BOOL isFirst;
 380 #endif
 381 #ifdef NS_IMPL_GNUSTEP
 382   BOOL applicationDidFinishLaunchingCalled;
 383 @public
 384   int nextappdefined;
 385 #endif
 386 }
 387 - (void)logNotification: (NSNotification *)notification;
 388 - (void)antialiasThresholdDidChange:(NSNotification *)notification;
 389 - (void)sendEvent: (NSEvent *)theEvent;
 390 - (void)showPreferencesWindow: (id)sender;
 391 - (BOOL) openFile: (NSString *)fileName;
 392 - (void)fd_handler: (id)unused;
 393 - (void)timeout_handler: (NSTimer *)timedEntry;
 394 - (BOOL)fulfillService: (NSString *)name withArg: (NSString *)arg;
 395 #ifdef NS_IMPL_GNUSTEP
 396 - (void)sendFromMainThread:(id)unused;
 397 #endif
 398 @end
 399
 400 #ifdef NS_IMPL_GNUSTEP
 401 /* Dummy class to get rid of startup warnings.  */
 402 @interface EmacsDocument : NSDocument
 403 {
 404 }
 405 @end
 406 #endif
 407
 408 /* ==========================================================================
 409
 410    The main Emacs view
 411
 412    ========================================================================== */
 413
 414 @class EmacsToolbar;
 415
 416 #ifdef NS_IMPL_COCOA
 417 @interface EmacsView : NSView <NSTextInput, NSWindowDelegate>
 418 #else
 419 @interface EmacsView : NSView <NSTextInput>
 420 #endif
 421    {
 422 #ifdef NS_IMPL_COCOA
 423    char *old_title;
 424    BOOL maximizing_resize;
 425 #endif
 426    BOOL windowClosing;
 427    NSString *workingText;
 428    BOOL processingCompose;
 429    int fs_state, fs_before_fs, next_maximized;
 430    int tibar_height, tobar_height, bwidth;
 431    int maximized_width, maximized_height;
 432    NSWindow *nonfs_window;
 433    BOOL fs_is_native;
 434 @public
 435    struct frame *emacsframe;
 436    int rows, cols;
 437    int scrollbarsNeedingUpdate;
 438    EmacsToolbar *toolbar;
 439    NSRect ns_userRect;
 440    BOOL wait_for_tool_bar;
 441    }
 442
 443 /* AppKit-side interface */
 444 - menuDown: (id)sender;
 445 - toolbarClicked: (id)item;
 446 - toggleToolbar: (id)sender;
 447 - (void)keyDown: (NSEvent *)theEvent;
 448 - (void)mouseDown: (NSEvent *)theEvent;
 449 - (void)mouseUp: (NSEvent *)theEvent;
 450 - setMiniwindowImage: (BOOL)setMini;
 451
 452 /* Emacs-side interface */
 453 - initFrameFromEmacs: (struct frame *) f;
 454 - (void) setRows: (int) r andColumns: (int) c;
 455 - (void) setWindowClosing: (BOOL)closing;
 456 - (EmacsToolbar *) toolbar;
 457 - (void) deleteWorkingText;
 458 - (void) updateFrameSize: (BOOL) delay;
 459 - (void) handleFS;
 460 - (void) setFSValue: (int)value;
 461 - (void) toggleFullScreen: (id) sender;
 462 - (BOOL) fsIsNative;
 463 - (BOOL) isFullscreen;
 464 #ifdef HAVE_NATIVE_FS
 465 - (void) updateCollectionBehavior;
 466 #endif
 467
 468 #ifdef NS_IMPL_GNUSTEP
 469 - (void)windowDidMove: (id)sender;
 470 #endif
 471 - (int)fullscreenState;
 472
 473 /* Non-notification versions of NSView methods. Used for direct calls. */
 474 - (void)windowWillEnterFullScreen;
 475 - (void)windowDidEnterFullScreen;
 476 - (void)windowWillExitFullScreen;
 477 - (void)windowDidExitFullScreen;
 478 - (void)windowDidBecomeKey;
 479 @end
 480
 481
 482 /* Small utility used for processing resize events under Cocoa. */
 483 @interface EmacsWindow : NSWindow
 484 {
 485   NSPoint grabOffset;
 486 }
 487 @end
 488
 489
 490 /* Fullscreen version of the above.  */
 491 @interface EmacsFSWindow : EmacsWindow
 492 {
 493 }
 494 @end
 495
 496 /* ==========================================================================
 497
 498    The main menu implementation
 499
 500    ========================================================================== */
 501
 502 #ifdef NS_IMPL_COCOA
 503 @interface EmacsMenu : NSMenu  <NSMenuDelegate>
 504 #else
 505 @interface EmacsMenu : NSMenu
 506 #endif
 507 {
 508   struct frame *frame;
 509   unsigned long keyEquivModMask;
 510 }
 511
 512 - initWithTitle: (NSString *)title frame: (struct frame *)f;
 513 - (void)setFrame: (struct frame *)f;
 514 - (void)menuNeedsUpdate: (NSMenu *)menu; /* (delegate method) */
 515 - (NSString *)parseKeyEquiv: (const char *)key;
 516 - (NSMenuItem *)addItemWithWidgetValue: (void *)wvptr;
 517 - (void)fillWithWidgetValue: (void *)wvptr;
 518 - (void)fillWithWidgetValue: (void *)wvptr frame: (struct frame *)f;
 519 - (EmacsMenu *)addSubmenuWithTitle: (const char *)title forFrame: (struct frame *)f;
 520 - (void) clear;
 521 - (Lisp_Object)runMenuAt: (NSPoint)p forFrame: (struct frame *)f
 522                  keymaps: (bool)keymaps;
 523 @end
 524
 525
 526 /* ==========================================================================
 527
 528    Toolbar
 529
 530    ========================================================================== */
 531
 532 @class EmacsImage;
 533
 534 #ifdef NS_IMPL_COCOA
 535 @interface EmacsToolbar : NSToolbar <NSToolbarDelegate>
 536 #else
 537 @interface EmacsToolbar : NSToolbar
 538 #endif
 539    {
 540      EmacsView *emacsView;
 541      NSMutableDictionary *identifierToItem;
 542      NSMutableArray *activeIdentifiers;
 543      NSArray *prevIdentifiers;
 544      unsigned long enablement, prevEnablement;
 545    }
 546 - initForView: (EmacsView *)view withIdentifier: (NSString *)identifier;
 547 - (void) clearActive;
 548 - (void) clearAll;
 549 - (BOOL) changed;
 550 - (void) addDisplayItemWithImage: (EmacsImage *)img
 551                              idx: (int)idx
 552                              tag: (int)tag
 553                         helpText: (const char *)help
 554                          enabled: (BOOL)enabled;
 555
 556 /* delegate methods */
 557 - (NSToolbarItem *)toolbar: (NSToolbar *)toolbar
 558      itemForItemIdentifier: (NSString *)itemIdentifier
 559  willBeInsertedIntoToolbar: (BOOL)flag;
 560 - (NSArray *)toolbarDefaultItemIdentifiers: (NSToolbar *)toolbar;
 561 - (NSArray *)toolbarAllowedItemIdentifiers: (NSToolbar *)toolbar;
 562 @end
 563
 564
 565 /* ==========================================================================
 566
 567    Message / question windows
 568
 569    ========================================================================== */
 570
 571 @interface EmacsDialogPanel : NSPanel
 572    {
 573    NSTextField *command;
 574    NSTextField *title;
 575    NSMatrix *matrix;
 576    int rows, cols;
 577    BOOL timer_fired, window_closed;
 578    Lisp_Object dialog_return;
 579    Lisp_Object *button_values;
 580    }
 581 - initFromContents: (Lisp_Object)menu isQuestion: (BOOL)isQ;
 582 - (void)process_dialog: (Lisp_Object)list;
 583 - (void)addButton: (char *)str value: (int)tag row: (int)row;
 584 - (void)addString: (char *)str row: (int)row;
 585 - (void)addSplit;
 586 - (Lisp_Object)runDialogAt: (NSPoint)p;
 587 - (void)timeout_handler: (NSTimer *)timedEntry;
 588 @end
 589
 590 #ifdef NS_IMPL_COCOA
 591 @interface EmacsTooltip : NSObject <NSWindowDelegate>
 592 #else
 593 @interface EmacsTooltip : NSObject
 594 #endif
 595   {
 596     NSWindow *win;
 597     NSTextField *textField;
 598     NSTimer *timer;
 599   }
 600 - init;
 601 - (void) setText: (char *)text;
 602 - (void) showAtX: (int)x Y: (int)y for: (int)seconds;
 603 - (void) hide;
 604 - (BOOL) isActive;
 605 - (NSRect) frame;
 606 @end
 607
 608
 609 /* ==========================================================================
 610
 611    File open/save panels
 612    This and next override methods to handle keyboard input in panels.
 613
 614    ========================================================================== */
 615
 616 @interface EmacsSavePanel : NSSavePanel
 617 {
 618 }
 619 @end
 620 @interface EmacsOpenPanel : NSOpenPanel
 621 {
 622 }
 623 @end
 624
 625 @interface EmacsFileDelegate : NSObject
 626 {
 627 }
 628 - (BOOL)panel: (id)sender isValidFilename: (NSString *)filename;
 629 - (BOOL)panel: (id)sender shouldShowFilename: (NSString *)filename;
 630 - (NSString *)panel: (id)sender userEnteredFilename: (NSString *)filename
 631           confirmed: (BOOL)okFlag;
 632 @end
 633
 634
 635 /* ==========================================================================
 636
 637    Images and stippling
 638
 639    ========================================================================== */
 640
 641 @interface EmacsImage : NSImage
 642 {
 643   NSBitmapImageRep *bmRep; /* used for accessing pixel data */
 644   unsigned char *pixmapData[5]; /* shortcut to access pixel data */
 645   NSColor *stippleMask;
 646   unsigned long xbm_fg;
 647 }
 648 + allocInitFromFile: (Lisp_Object)file;
 649 - (void)dealloc;
 650 - initFromXBM: (unsigned char *)bits width: (int)w height: (int)h
 651                   fg: (unsigned long)fg bg: (unsigned long)bg;
 652 - setXBMColor: (NSColor *)color;
 653 - initForXPMWithDepth: (int)depth width: (int)width height: (int)height;
 654 - (void)setPixmapData;
 655 - (unsigned long)getPixelAtX: (int)x Y: (int)y;
 656 - (void)setPixelAtX: (int)x Y: (int)y toRed: (unsigned char)r
 657                green: (unsigned char)g blue: (unsigned char)b
 658               alpha:(unsigned char)a;
 659 - (void)setAlphaAtX: (int)x Y: (int)y to: (unsigned char)a;
 660 - (NSColor *)stippleMask;
 661 @end
 662
 663
 664 /* ==========================================================================
 665
 666    Scrollbars
 667
 668    ========================================================================== */
 669
 670 @interface EmacsScroller : NSScroller
 671   {
 672    struct window *window;
 673    struct frame *frame;
 674    NSResponder *prevResponder;
 675
 676    /* offset to the bottom of knob of last mouse down */
 677    CGFloat last_mouse_offset;
 678    float min_portion;
 679    int pixel_length;
 680    enum scroll_bar_part last_hit_part;
 681
 682    BOOL condemned;
 683
 684    BOOL horizontal;
 685
 686    /* optimize against excessive positioning calls generated by emacs */
 687    int em_position;
 688    int em_portion;
 689    int em_whole;
 690    }
 691
 692 - initFrame: (NSRect )r window: (Lisp_Object)win;
 693 - (void)setFrame: (NSRect)r;
 694
 695 - setPosition: (int) position portion: (int) portion whole: (int) whole;
 696 - (int) checkSamePosition: (int)position portion: (int)portion
 697                     whole: (int)whole;
 698 - (void) sendScrollEventAtLoc: (float)loc fromEvent: (NSEvent *)e;
 699 - repeatScroll: (NSTimer *)sender;
 700 - condemn;
 701 - reprieve;
 702 - (bool)judge;
 703 + (CGFloat)scrollerWidth;
 704 @end
 705
 706
 707 /* ==========================================================================
 708
 709    Rendering
 710
 711    ========================================================================== */
 712
 713 #ifdef NS_IMPL_COCOA
 714 /* rendering util */
 715 @interface EmacsGlyphStorage : NSObject <NSGlyphStorage>
 716 {
 717 @public
 718   NSAttributedString *attrStr;
 719   NSMutableDictionary *dict;
 720   CGGlyph *cglyphs;
 721   unsigned long maxChar, maxGlyph;
 722   long i, len;
 723 }
 724 - initWithCapacity: (unsigned long) c;
 725 - (void) setString: (NSString *)str font: (NSFont *)font;
 726 @end
 727 #endif  /* NS_IMPL_COCOA */
 728
 729 extern NSArray *ns_send_types, *ns_return_types;
 730 extern NSString *ns_app_name;
 731 extern EmacsMenu *mainMenu, *svcsMenu, *dockMenu;
 732
 733 /* Apple removed the declaration, but kept the implementation */
 734 #if defined (NS_IMPL_COCOA)
 735 @interface NSApplication (EmacsApp)
 736 - (void)setAppleMenu: (NSMenu *)menu;
 737 @end
 738 #endif
 739
 740 #endif  /* __OBJC__ */
 741
 742
 743
 744 /* ==========================================================================
 745
 746    Non-OO stuff
 747
 748    ========================================================================== */
 749
 750 /* Special keycodes that we pass down the event chain */
 751 #define KEY_NS_POWER_OFF               ((1<<28)|(0<<16)|1)
 752 #define KEY_NS_OPEN_FILE               ((1<<28)|(0<<16)|2)
 753 #define KEY_NS_OPEN_TEMP_FILE          ((1<<28)|(0<<16)|3)
 754 #define KEY_NS_CHANGE_FONT             ((1<<28)|(0<<16)|7)
 755 #define KEY_NS_OPEN_FILE_LINE          ((1<<28)|(0<<16)|8)
 756 #define KEY_NS_PUT_WORKING_TEXT        ((1<<28)|(0<<16)|9)
 757 #define KEY_NS_UNPUT_WORKING_TEXT      ((1<<28)|(0<<16)|10)
 758 #define KEY_NS_SPI_SERVICE_CALL        ((1<<28)|(0<<16)|11)
 759 #define KEY_NS_NEW_FRAME               ((1<<28)|(0<<16)|12)
 760 #define KEY_NS_TOGGLE_TOOLBAR          ((1<<28)|(0<<16)|13)
 761 #define KEY_NS_SHOW_PREFS              ((1<<28)|(0<<16)|14)
 762
 763 /* could use list to store these, but rest of emacs has a big infrastructure
 764    for managing a table of bitmap "records" */
 765 struct ns_bitmap_record
 766 {
 767 #ifdef __OBJC__
 768   EmacsImage *img;
 769 #else
 770   void *img;
 771 #endif
 772   char *file;
 773   int refcount;
 774   int height, width, depth;
 775 };
 776
 777 /* this to map between emacs color indices and NSColor objects */
 778 struct ns_color_table
 779 {
 780   ptrdiff_t size;
 781   ptrdiff_t avail;
 782 #ifdef __OBJC__
 783   NSColor **colors;
 784   NSMutableSet *empty_indices;
 785 #else
 786   void **items;
 787   void *availIndices;
 788 #endif
 789 };
 790 #define NS_COLOR_CAPACITY 256
 791
 792 #define RGB_TO_ULONG(r, g, b) (((r) << 16) | ((g) << 8) | (b))
 793 #define ARGB_TO_ULONG(a, r, g, b) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
 794
 795 #define ALPHA_FROM_ULONG(color) ((color) >> 24)
 796 #define RED_FROM_ULONG(color) (((color) >> 16) & 0xff)
 797 #define GREEN_FROM_ULONG(color) (((color) >> 8) & 0xff)
 798 #define BLUE_FROM_ULONG(color) ((color) & 0xff)
 799
 800 /* Do not change `* 0x101' in the following lines to `<< 8'.  If
 801    changed, image masks in 1-bit depth will not work. */
 802 #define RED16_FROM_ULONG(color) (RED_FROM_ULONG(color) * 0x101)
 803 #define GREEN16_FROM_ULONG(color) (GREEN_FROM_ULONG(color) * 0x101)
 804 #define BLUE16_FROM_ULONG(color) (BLUE_FROM_ULONG(color) * 0x101)
 805
 806 /* this extends font backend font */
 807 struct nsfont_info
 808 {
 809   struct font font;
 810
 811   char *name;  /* PostScript name, uniquely identifies on NS systems */
 812
 813   /* The following metrics are stored as float rather than int. */
 814
 815   float width;  /* Maximum advance for the font.  */
 816   float height;
 817   float underpos;
 818   float underwidth;
 819   float size;
 820 #ifdef __OBJC__
 821   NSFont *nsfont;
 822 #if defined (NS_IMPL_COCOA)
 823   CGFontRef cgfont;
 824 #else /* GNUstep */
 825   void *cgfont;
 826 #endif
 827 #else /* ! OBJC */
 828   void *nsfont;
 829   void *cgfont;
 830 #endif
 831   char bold, ital;  /* convenience flags */
 832   char synthItal;
 833   XCharStruct max_bounds;
 834   /* we compute glyph codes and metrics on-demand in blocks of 256 indexed
 835      by hibyte, lobyte */
 836   unsigned short **glyphs; /* map Unicode index to glyph */
 837   struct font_metrics **metrics;
 838 };
 839
 840
 841 /* init'd in ns_initialize_display_info () */
 842 struct ns_display_info
 843 {
 844   /* Chain of all ns_display_info structures.  */
 845   struct ns_display_info *next;
 846
 847   /* The generic display parameters corresponding to this NS display. */
 848   struct terminal *terminal;
 849
 850   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).  */
 851   Lisp_Object name_list_element;
 852
 853   /* The number of fonts loaded. */
 854   int n_fonts;
 855
 856   /* Minimum width over all characters in all fonts in font_table.  */
 857   int smallest_char_width;
 858
 859   /* Minimum font height over all fonts in font_table.  */
 860   int smallest_font_height;
 861
 862   struct ns_bitmap_record *bitmaps;
 863   ptrdiff_t bitmaps_size;
 864   ptrdiff_t bitmaps_last;
 865
 866   struct ns_color_table *color_table;
 867
 868   /* DPI resolution of this screen */
 869   double resx, resy;
 870
 871   /* Mask of things that cause the mouse to be grabbed */
 872   int grabbed;
 873
 874   int n_planes;
 875
 876   int color_p;
 877
 878   Window root_window;
 879
 880   /* Xism */
 881   XrmDatabase xrdb;
 882
 883   /* The cursor to use for vertical scroll bars. */
 884   Cursor vertical_scroll_bar_cursor;
 885
 886   /* The cursor to use for horizontal scroll bars. */
 887   Cursor horizontal_scroll_bar_cursor;
 888
 889   /* Information about the range of text currently shown in
 890      mouse-face.  */
 891   Mouse_HLInfo mouse_highlight;
 892
 893   struct frame *x_highlight_frame;
 894   struct frame *x_focus_frame;
 895
 896   /* The frame where the mouse was last time we reported a mouse event.  */
 897   struct frame *last_mouse_frame;
 898
 899   /* The frame where the mouse was last time we reported a mouse motion.  */
 900   struct frame *last_mouse_motion_frame;
 901
 902   /* Position where the mouse was last time we reported a motion.
 903      This is a position on last_mouse_motion_frame.  */
 904   int last_mouse_motion_x;
 905   int last_mouse_motion_y;
 906
 907   /* Where the mouse was last time we reported a mouse position.  */
 908   NSRect last_mouse_glyph;
 909
 910   /* Time of last mouse movement.  */
 911   Time last_mouse_movement_time;
 912
 913   /* The scroll bar in which the last motion event occurred.  */
 914 #ifdef __OBJC__
 915   EmacsScroller *last_mouse_scroll_bar;
 916 #else
 917   void *last_mouse_scroll_bar;
 918 #endif
 919 };
 920
 921 /* This is a chain of structures for all the NS displays currently in use.  */
 922 extern struct ns_display_info *x_display_list;
 923
 924 extern struct ns_display_info *ns_display_info_for_name (Lisp_Object name);
 925
 926 struct ns_output
 927 {
 928 #ifdef __OBJC__
 929   EmacsView *view;
 930   id miniimage;
 931   NSColor *cursor_color;
 932   NSColor *foreground_color;
 933   NSColor *background_color;
 934   EmacsToolbar *toolbar;
 935 #else
 936   void *view;
 937   void *miniimage;
 938   void *cursor_color;
 939   void *foreground_color;
 940   void *background_color;
 941   void *toolbar;
 942 #endif
 943
 944   /* NSCursors init'ed in initFrameFromEmacs */
 945   Cursor text_cursor;
 946   Cursor nontext_cursor;
 947   Cursor modeline_cursor;
 948   Cursor hand_cursor;
 949   Cursor hourglass_cursor;
 950   Cursor horizontal_drag_cursor;
 951   Cursor vertical_drag_cursor;
 952
 953   /* NS-specific */
 954   Cursor current_pointer;
 955
 956   /* lord knows why Emacs needs to know about our Window ids.. */
 957   Window window_desc, parent_desc;
 958   char explicit_parent;
 959
 960   struct font *font;
 961   int baseline_offset;
 962
 963   /* If a fontset is specified for this frame instead of font, this
 964      value contains an ID of the fontset, else -1.  */
 965   int fontset; /* only used with font_backend */
 966
 967   int icon_top;
 968   int icon_left;
 969
 970   /* The size of the extra width currently allotted for vertical
 971      scroll bars, in pixels.  */
 972   int vertical_scroll_bar_extra;
 973
 974   /* The height of the titlebar decoration (included in NSWindow's frame). */
 975   int titlebar_height;
 976
 977   /* The height of the toolbar if displayed, else 0. */
 978   int toolbar_height;
 979
 980   /* This is the Emacs structure for the NS display this frame is on.  */
 981   struct ns_display_info *display_info;
 982
 983   /* Non-zero if we are zooming (maximizing) the frame.  */
 984   int zooming;
 985
 986   /* Non-zero if we are doing an animation, e.g. toggling the tool bar. */
 987   int in_animation;
 988 };
 989
 990 /* this dummy decl needed to support TTYs */
 991 struct x_output
 992 {
 993   int unused;
 994 };
 995
 996
 997 /* This gives the ns_display_info structure for the display F is on.  */
 998 #define FRAME_DISPLAY_INFO(f) ((f)->output_data.ns->display_info)
 999 #define FRAME_X_OUTPUT(f) ((f)->output_data.ns)
1000 #define FRAME_NS_WINDOW(f) ((f)->output_data.ns->window_desc)
1001 #define FRAME_X_WINDOW(f) ((f)->output_data.ns->window_desc)
1002
1003 /* This is the `Display *' which frame F is on.  */
1004 #define FRAME_NS_DISPLAY(f) (0)
1005 #define FRAME_X_DISPLAY(f) (0)
1006 #define FRAME_X_SCREEN(f) (0)
1007 #define FRAME_X_VISUAL(f) FRAME_DISPLAY_INFO(f)->visual
1008
1009 #define FRAME_FOREGROUND_COLOR(f) ((f)->output_data.ns->foreground_color)
1010 #define FRAME_BACKGROUND_COLOR(f) ((f)->output_data.ns->background_color)
1011
1012 #define NS_FACE_FOREGROUND(f) ((f)->foreground)
1013 #define NS_FACE_BACKGROUND(f) ((f)->background)
1014 #define FRAME_NS_TITLEBAR_HEIGHT(f) ((f)->output_data.ns->titlebar_height)
1015 #define FRAME_TOOLBAR_HEIGHT(f) ((f)->output_data.ns->toolbar_height)
1016
1017 #define FRAME_DEFAULT_FACE(f) FACE_OPT_FROM_ID (f, DEFAULT_FACE_ID)
1018
1019 #define FRAME_NS_VIEW(f) ((f)->output_data.ns->view)
1020 #define FRAME_CURSOR_COLOR(f) ((f)->output_data.ns->cursor_color)
1021 #define FRAME_POINTER_TYPE(f) ((f)->output_data.ns->current_pointer)
1022
1023 #define FRAME_FONT(f) ((f)->output_data.ns->font)
1024
1025 #ifdef __OBJC__
1026 #define XNS_SCROLL_BAR(vec) ((id) XSAVE_POINTER (vec, 0))
1027 #else
1028 #define XNS_SCROLL_BAR(vec) XSAVE_POINTER (vec, 0)
1029 #endif
1030
1031 /* Compute pixel size for vertical scroll bars */
1032 #define NS_SCROLL_BAR_WIDTH(f)                                          \
1033   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                                   \
1034    ? rint (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0                        \
1035            ? FRAME_CONFIG_SCROLL_BAR_WIDTH (f)                          \
1036            : (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)))      \
1037    : 0)
1038
1039 /* Compute pixel size for horizontal scroll bars */
1040 #define NS_SCROLL_BAR_HEIGHT(f)                                         \
1041   (FRAME_HAS_HORIZONTAL_SCROLL_BARS (f)                                 \
1042    ? rint (FRAME_CONFIG_SCROLL_BAR_HEIGHT (f) > 0                       \
1043            ? FRAME_CONFIG_SCROLL_BAR_HEIGHT (f)                         \
1044            : (FRAME_SCROLL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)))      \
1045    : 0)
1046
1047 /* Difference btwn char-column-calculated and actual SB widths.
1048    This is only a concern for rendering when SB on left. */
1049 #define NS_SCROLL_BAR_ADJUST(w, f)                              \
1050   (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) ?                 \
1051    (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)          \
1052     - NS_SCROLL_BAR_WIDTH (f)) : 0)
1053
1054 /* Difference btwn char-line-calculated and actual SB heights.
1055    This is only a concern for rendering when SB on top. */
1056 #define NS_SCROLL_BAR_ADJUST_HORIZONTALLY(w, f)         \
1057   (WINDOW_HAS_HORIZONTAL_SCROLL_BARS (w) ?              \
1058    (FRAME_SCROLL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)  \
1059     - NS_SCROLL_BAR_HEIGHT (f)) : 0)
1060
1061 /* XXX: fix for GNUstep inconsistent accounting for titlebar */
1062 #ifdef NS_IMPL_GNUSTEP
1063 #define NS_TOP_POS(f) ((f)->top_pos + 18)
1064 #else
1065 #define NS_TOP_POS(f) ((f)->top_pos)
1066 #endif
1067
1068 #define FRAME_NS_FONT_TABLE(f) (FRAME_DISPLAY_INFO (f)->font_table)
1069
1070 #define FRAME_FONTSET(f) ((f)->output_data.ns->fontset)
1071
1072 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.ns->baseline_offset)
1073 #define BLACK_PIX_DEFAULT(f) 0x000000
1074 #define WHITE_PIX_DEFAULT(f) 0xFFFFFF
1075
1076 /* First position where characters can be shown (instead of scrollbar, if
1077    it is on left. */
1078 #define FIRST_CHAR_POSITION(f)                          \
1079   (! (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)) ? 0   \
1080    : FRAME_SCROLL_BAR_COLS (f))
1081
1082 extern struct ns_display_info *ns_term_init (Lisp_Object display_name);
1083 extern void ns_term_shutdown (int sig);
1084
1085 /* constants for text rendering */
1086 #define NS_DUMPGLYPH_NORMAL             0
1087 #define NS_DUMPGLYPH_CURSOR             1
1088 #define NS_DUMPGLYPH_FOREGROUND         2
1089 #define NS_DUMPGLYPH_MOUSEFACE          3
1090
1091
1092
1093 /* In nsfont, called from fontset.c */
1094 extern void nsfont_make_fontset_for_font (Lisp_Object name,
1095                                          Lisp_Object font_object);
1096
1097 /* In nsfont, for debugging */
1098 struct glyph_string;
1099 void ns_dump_glyphstring (struct glyph_string *s);
1100
1101 /* Implemented in nsterm, published in or needed from nsfns. */
1102 extern Lisp_Object ns_list_fonts (struct frame *f, Lisp_Object pattern,
1103                                   int size, int maxnames);
1104 extern void ns_clear_frame (struct frame *f);
1105
1106 extern const char *ns_xlfd_to_fontname (const char *xlfd);
1107
1108 extern Lisp_Object ns_map_event_to_object (void);
1109 #ifdef __OBJC__
1110 extern Lisp_Object ns_string_from_pasteboard (id pb);
1111 extern void ns_string_to_pasteboard (id pb, Lisp_Object str);
1112 #endif
1113 extern Lisp_Object ns_get_local_selection (Lisp_Object selection_name,
1114                                            Lisp_Object target_type);
1115 extern void nxatoms_of_nsselect (void);
1116 extern int ns_lisp_to_cursor_type (Lisp_Object arg);
1117 extern Lisp_Object ns_cursor_type_to_lisp (int arg);
1118 extern void ns_set_name_as_filename (struct frame *f);
1119 extern void ns_set_doc_edited (void);
1120
1121 extern bool
1122 ns_defined_color (struct frame *f,
1123                   const char *name,
1124                   XColor *color_def, bool alloc,
1125                   bool makeIndex);
1126 extern void
1127 ns_query_color (void *col, XColor *color_def, int setPixel);
1128
1129 #ifdef __OBJC__
1130 extern Lisp_Object ns_color_to_lisp (NSColor *col);
1131 extern int ns_lisp_to_color (Lisp_Object color, NSColor **col);
1132 extern NSColor *ns_lookup_indexed_color (unsigned long idx, struct frame *f);
1133 extern unsigned long ns_index_color (NSColor *color, struct frame *f);
1134 extern void ns_free_indexed_color (unsigned long idx, struct frame *f);
1135 extern const char *ns_get_pending_menu_title (void);
1136 extern void ns_check_menu_open (NSMenu *menu);
1137 extern void ns_check_pending_open_menu (void);
1138 #endif
1139
1140 /* C access to ObjC functionality */
1141 extern void  ns_release_object (void *obj);
1142 extern void  ns_retain_object (void *obj);
1143 extern void *ns_alloc_autorelease_pool (void);
1144 extern void ns_release_autorelease_pool (void *);
1145 extern const char *ns_get_defaults_value (const char *key);
1146 extern void ns_init_locale (void);
1147
1148
1149 /* in nsmenu */
1150 extern void update_frame_tool_bar (struct frame *f);
1151 extern void free_frame_tool_bar (struct frame *f);
1152 extern void find_and_call_menu_selection (struct frame *f,
1153     int menu_bar_items_used, Lisp_Object vector, void *client_data);
1154 extern Lisp_Object find_and_return_menu_selection (struct frame *f,
1155                                                    bool keymaps,
1156                                                    void *client_data);
1157 extern Lisp_Object ns_popup_dialog (struct frame *, Lisp_Object header,
1158                                     Lisp_Object contents);
1159
1160 #define NSAPP_DATA2_RUNASSCRIPT 10
1161 extern void ns_run_ascript (void);
1162
1163 #define NSAPP_DATA2_RUNFILEDIALOG 11
1164 extern void ns_run_file_dialog (void);
1165
1166 extern const char *ns_etc_directory (void);
1167 extern const char *ns_exec_path (void);
1168 extern const char *ns_load_path (void);
1169 extern void syms_of_nsterm (void);
1170 extern void syms_of_nsfns (void);
1171 extern void syms_of_nsmenu (void);
1172 extern void syms_of_nsselect (void);
1173
1174 /* From nsimage.m, needed in image.c */
1175 struct image;
1176 extern void *ns_image_from_XBM (unsigned char *bits, int width, int height,
1177                                 unsigned long fg, unsigned long bg);
1178 extern void *ns_image_for_XPM (int width, int height, int depth);
1179 extern void *ns_image_from_file (Lisp_Object file);
1180 extern bool ns_load_image (struct frame *f, struct image *img,
1181                            Lisp_Object spec_file, Lisp_Object spec_data);
1182 extern int ns_image_width (void *img);
1183 extern int ns_image_height (void *img);
1184 extern unsigned long ns_get_pixel (void *img, int x, int y);
1185 extern void ns_put_pixel (void *img, int x, int y, unsigned long argb);
1186 extern void ns_set_alpha (void *img, int x, int y, unsigned char a);
1187
1188 extern int x_display_pixel_height (struct ns_display_info *);
1189 extern int x_display_pixel_width (struct ns_display_info *);
1190
1191 /* This in nsterm.m */
1192 extern void x_destroy_window (struct frame *f);
1193 extern int ns_select (int nfds, fd_set *readfds, fd_set *writefds,
1194                       fd_set *exceptfds, struct timespec const *timeout,
1195                       sigset_t const *sigmask);
1196 extern unsigned long ns_get_rgb_color (struct frame *f,
1197                                        float r, float g, float b, float a);
1198
1199 extern void ns_init_events ();
1200 extern void ns_finish_events ();
1201
1202 #ifdef __OBJC__
1203 /* From nsterm.m, needed in nsfont.m. */
1204 extern void
1205 ns_draw_text_decoration (struct glyph_string *s, struct face *face,
1206                          NSColor *defaultCol, CGFloat width, CGFloat x);
1207 /* Needed in nsfns.m.  */
1208 extern void
1209 ns_set_represented_filename (NSString* fstr, struct frame *f);
1210
1211 #endif
1212
1213 #ifdef NS_IMPL_GNUSTEP
1214 extern char gnustep_base_version[];  /* version tracking */
1215 #endif
1216
1217 #define MINWIDTH 10
1218 #define MINHEIGHT 10
1219
1220 /* Screen max coordinate
1221  Using larger coordinates causes movewindow/placewindow to abort */
1222 #define SCREENMAX 16000
1223
1224 #define NS_SCROLL_BAR_WIDTH_DEFAULT     [EmacsScroller scrollerWidth]
1225 #define NS_SCROLL_BAR_HEIGHT_DEFAULT    [EmacsScroller scrollerHeight]
1226 /* This is to match emacs on other platforms, ugly though it is. */
1227 #define NS_SELECTION_BG_COLOR_DEFAULT   @"LightGoldenrod2";
1228 #define NS_SELECTION_FG_COLOR_DEFAULT   @"Black";
1229 #define RESIZE_HANDLE_SIZE 12
1230
1231 /* Little utility macros */
1232 #define IN_BOUND(min, x, max) (((x) < (min)) \
1233                                 ? (min) : (((x)>(max)) ? (max) : (x)))
1234 #define SCREENMAXBOUND(x) (IN_BOUND (-SCREENMAX, x, SCREENMAX))
1235
1236 #endif  /* HAVE_NS */