src/nsterm.h

   1 /* Definitions and headers for communication with NeXT/Open/GNUstep API.
   2    Copyright (C) 1989, 1993, 2005, 2008-2017 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 #endif
 384 @public
 385   int nextappdefined;
 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_height;
 680    enum scroll_bar_part last_hit_part;
 681
 682    BOOL condemned;
 683
 684    /* optimize against excessive positioning calls generated by emacs */
 685    int em_position;
 686    int em_portion;
 687    int em_whole;
 688    }
 689
 690 - initFrame: (NSRect )r window: (Lisp_Object)win;
 691 - (void)setFrame: (NSRect)r;
 692
 693 - setPosition: (int) position portion: (int) portion whole: (int) whole;
 694 - (int) checkSamePosition: (int)position portion: (int)portion
 695                     whole: (int)whole;
 696 - (void) sendScrollEventAtLoc: (float)loc fromEvent: (NSEvent *)e;
 697 - repeatScroll: (NSTimer *)sender;
 698 - condemn;
 699 - reprieve;
 700 - (bool)judge;
 701 + (CGFloat)scrollerWidth;
 702 @end
 703
 704
 705 /* ==========================================================================
 706
 707    Rendering
 708
 709    ========================================================================== */
 710
 711 #ifdef NS_IMPL_COCOA
 712 /* rendering util */
 713 @interface EmacsGlyphStorage : NSObject <NSGlyphStorage>
 714 {
 715 @public
 716   NSAttributedString *attrStr;
 717   NSMutableDictionary *dict;
 718   CGGlyph *cglyphs;
 719   unsigned long maxChar, maxGlyph;
 720   long i, len;
 721 }
 722 - initWithCapacity: (unsigned long) c;
 723 - (void) setString: (NSString *)str font: (NSFont *)font;
 724 @end
 725 #endif  /* NS_IMPL_COCOA */
 726
 727 extern NSArray *ns_send_types, *ns_return_types;
 728 extern NSString *ns_app_name;
 729 extern EmacsMenu *mainMenu, *svcsMenu, *dockMenu;
 730
 731 /* Apple removed the declaration, but kept the implementation */
 732 #if defined (NS_IMPL_COCOA)
 733 @interface NSApplication (EmacsApp)
 734 - (void)setAppleMenu: (NSMenu *)menu;
 735 @end
 736 #endif
 737
 738 #endif  /* __OBJC__ */
 739
 740
 741
 742 /* ==========================================================================
 743
 744    Non-OO stuff
 745
 746    ========================================================================== */
 747
 748 /* Special keycodes that we pass down the event chain */
 749 #define KEY_NS_POWER_OFF               ((1<<28)|(0<<16)|1)
 750 #define KEY_NS_OPEN_FILE               ((1<<28)|(0<<16)|2)
 751 #define KEY_NS_OPEN_TEMP_FILE          ((1<<28)|(0<<16)|3)
 752 #define KEY_NS_CHANGE_FONT             ((1<<28)|(0<<16)|7)
 753 #define KEY_NS_OPEN_FILE_LINE          ((1<<28)|(0<<16)|8)
 754 #define KEY_NS_PUT_WORKING_TEXT        ((1<<28)|(0<<16)|9)
 755 #define KEY_NS_UNPUT_WORKING_TEXT      ((1<<28)|(0<<16)|10)
 756 #define KEY_NS_SPI_SERVICE_CALL        ((1<<28)|(0<<16)|11)
 757 #define KEY_NS_NEW_FRAME               ((1<<28)|(0<<16)|12)
 758 #define KEY_NS_TOGGLE_TOOLBAR          ((1<<28)|(0<<16)|13)
 759 #define KEY_NS_SHOW_PREFS              ((1<<28)|(0<<16)|14)
 760
 761 /* could use list to store these, but rest of emacs has a big infrastructure
 762    for managing a table of bitmap "records" */
 763 struct ns_bitmap_record
 764 {
 765 #ifdef __OBJC__
 766   EmacsImage *img;
 767 #else
 768   void *img;
 769 #endif
 770   char *file;
 771   int refcount;
 772   int height, width, depth;
 773 };
 774
 775 /* this to map between emacs color indices and NSColor objects */
 776 struct ns_color_table
 777 {
 778   ptrdiff_t size;
 779   ptrdiff_t avail;
 780 #ifdef __OBJC__
 781   NSColor **colors;
 782   NSMutableSet *empty_indices;
 783 #else
 784   void **items;
 785   void *availIndices;
 786 #endif
 787 };
 788 #define NS_COLOR_CAPACITY 256
 789
 790 #define RGB_TO_ULONG(r, g, b) (((r) << 16) | ((g) << 8) | (b))
 791 #define ARGB_TO_ULONG(a, r, g, b) (((a) << 24) | ((r) << 16) | ((g) << 8) | (b))
 792
 793 #define ALPHA_FROM_ULONG(color) ((color) >> 24)
 794 #define RED_FROM_ULONG(color) (((color) >> 16) & 0xff)
 795 #define GREEN_FROM_ULONG(color) (((color) >> 8) & 0xff)
 796 #define BLUE_FROM_ULONG(color) ((color) & 0xff)
 797
 798 /* Do not change `* 0x101' in the following lines to `<< 8'.  If
 799    changed, image masks in 1-bit depth will not work. */
 800 #define RED16_FROM_ULONG(color) (RED_FROM_ULONG(color) * 0x101)
 801 #define GREEN16_FROM_ULONG(color) (GREEN_FROM_ULONG(color) * 0x101)
 802 #define BLUE16_FROM_ULONG(color) (BLUE_FROM_ULONG(color) * 0x101)
 803
 804 /* this extends font backend font */
 805 struct nsfont_info
 806 {
 807   struct font font;
 808
 809   char *name;  /* PostScript name, uniquely identifies on NS systems */
 810
 811   /* The following metrics are stored as float rather than int. */
 812
 813   float width;  /* Maximum advance for the font.  */
 814   float height;
 815   float underpos;
 816   float underwidth;
 817   float size;
 818 #ifdef __OBJC__
 819   NSFont *nsfont;
 820 #if defined (NS_IMPL_COCOA)
 821   CGFontRef cgfont;
 822 #else /* GNUstep */
 823   void *cgfont;
 824 #endif
 825 #else /* ! OBJC */
 826   void *nsfont;
 827   void *cgfont;
 828 #endif
 829   char bold, ital;  /* convenience flags */
 830   char synthItal;
 831   XCharStruct max_bounds;
 832   /* we compute glyph codes and metrics on-demand in blocks of 256 indexed
 833      by hibyte, lobyte */
 834   unsigned short **glyphs; /* map Unicode index to glyph */
 835   struct font_metrics **metrics;
 836 };
 837
 838
 839 /* init'd in ns_initialize_display_info () */
 840 struct ns_display_info
 841 {
 842   /* Chain of all ns_display_info structures.  */
 843   struct ns_display_info *next;
 844
 845   /* The generic display parameters corresponding to this NS display. */
 846   struct terminal *terminal;
 847
 848   /* This is a cons cell of the form (NAME . FONT-LIST-CACHE).  */
 849   Lisp_Object name_list_element;
 850
 851   /* The number of fonts loaded. */
 852   int n_fonts;
 853
 854   /* Minimum width over all characters in all fonts in font_table.  */
 855   int smallest_char_width;
 856
 857   /* Minimum font height over all fonts in font_table.  */
 858   int smallest_font_height;
 859
 860   struct ns_bitmap_record *bitmaps;
 861   ptrdiff_t bitmaps_size;
 862   ptrdiff_t bitmaps_last;
 863
 864   struct ns_color_table *color_table;
 865
 866   /* DPI resolution of this screen */
 867   double resx, resy;
 868
 869   /* Mask of things that cause the mouse to be grabbed */
 870   int grabbed;
 871
 872   int n_planes;
 873
 874   int color_p;
 875
 876   Window root_window;
 877
 878   /* Xism */
 879   XrmDatabase xrdb;
 880
 881   /* The cursor to use for vertical scroll bars. */
 882   Cursor vertical_scroll_bar_cursor;
 883
 884   /* The cursor to use for horizontal scroll bars. */
 885   Cursor horizontal_scroll_bar_cursor;
 886
 887   /* Information about the range of text currently shown in
 888      mouse-face.  */
 889   Mouse_HLInfo mouse_highlight;
 890
 891   struct frame *x_highlight_frame;
 892   struct frame *x_focus_frame;
 893
 894   /* The frame where the mouse was last time we reported a mouse event.  */
 895   struct frame *last_mouse_frame;
 896
 897   /* The frame where the mouse was last time we reported a mouse motion.  */
 898   struct frame *last_mouse_motion_frame;
 899
 900   /* Position where the mouse was last time we reported a motion.
 901      This is a position on last_mouse_motion_frame.  */
 902   int last_mouse_motion_x;
 903   int last_mouse_motion_y;
 904
 905   /* Where the mouse was last time we reported a mouse position.  */
 906   NSRect last_mouse_glyph;
 907
 908   /* Time of last mouse movement.  */
 909   Time last_mouse_movement_time;
 910
 911   /* The scroll bar in which the last motion event occurred.  */
 912 #ifdef __OBJC__
 913   EmacsScroller *last_mouse_scroll_bar;
 914 #else
 915   void *last_mouse_scroll_bar;
 916 #endif
 917 };
 918
 919 /* This is a chain of structures for all the NS displays currently in use.  */
 920 extern struct ns_display_info *x_display_list;
 921
 922 extern struct ns_display_info *ns_display_info_for_name (Lisp_Object name);
 923
 924 struct ns_output
 925 {
 926 #ifdef __OBJC__
 927   EmacsView *view;
 928   id miniimage;
 929   NSColor *cursor_color;
 930   NSColor *foreground_color;
 931   NSColor *background_color;
 932   EmacsToolbar *toolbar;
 933 #else
 934   void *view;
 935   void *miniimage;
 936   void *cursor_color;
 937   void *foreground_color;
 938   void *background_color;
 939   void *toolbar;
 940 #endif
 941
 942   /* NSCursors init'ed in initFrameFromEmacs */
 943   Cursor text_cursor;
 944   Cursor nontext_cursor;
 945   Cursor modeline_cursor;
 946   Cursor hand_cursor;
 947   Cursor hourglass_cursor;
 948   Cursor horizontal_drag_cursor;
 949   Cursor vertical_drag_cursor;
 950
 951   /* NS-specific */
 952   Cursor current_pointer;
 953
 954   /* lord knows why Emacs needs to know about our Window ids.. */
 955   Window window_desc, parent_desc;
 956   char explicit_parent;
 957
 958   struct font *font;
 959   int baseline_offset;
 960
 961   /* If a fontset is specified for this frame instead of font, this
 962      value contains an ID of the fontset, else -1.  */
 963   int fontset; /* only used with font_backend */
 964
 965   int icon_top;
 966   int icon_left;
 967
 968   /* The size of the extra width currently allotted for vertical
 969      scroll bars, in pixels.  */
 970   int vertical_scroll_bar_extra;
 971
 972   /* The height of the titlebar decoration (included in NSWindow's frame). */
 973   int titlebar_height;
 974
 975   /* The height of the toolbar if displayed, else 0. */
 976   int toolbar_height;
 977
 978   /* This is the Emacs structure for the NS display this frame is on.  */
 979   struct ns_display_info *display_info;
 980
 981   /* Non-zero if we are zooming (maximizing) the frame.  */
 982   int zooming;
 983
 984   /* Non-zero if we are doing an animation, e.g. toggling the tool bar. */
 985   int in_animation;
 986 };
 987
 988 /* this dummy decl needed to support TTYs */
 989 struct x_output
 990 {
 991   int unused;
 992 };
 993
 994
 995 /* This gives the ns_display_info structure for the display F is on.  */
 996 #define FRAME_DISPLAY_INFO(f) ((f)->output_data.ns->display_info)
 997 #define FRAME_X_OUTPUT(f) ((f)->output_data.ns)
 998 #define FRAME_NS_WINDOW(f) ((f)->output_data.ns->window_desc)
 999 #define FRAME_X_WINDOW(f) ((f)->output_data.ns->window_desc)
1000
1001 /* This is the `Display *' which frame F is on.  */
1002 #define FRAME_NS_DISPLAY(f) (0)
1003 #define FRAME_X_DISPLAY(f) (0)
1004 #define FRAME_X_SCREEN(f) (0)
1005 #define FRAME_X_VISUAL(f) FRAME_DISPLAY_INFO(f)->visual
1006
1007 #define FRAME_FOREGROUND_COLOR(f) ((f)->output_data.ns->foreground_color)
1008 #define FRAME_BACKGROUND_COLOR(f) ((f)->output_data.ns->background_color)
1009
1010 #define NS_FACE_FOREGROUND(f) ((f)->foreground)
1011 #define NS_FACE_BACKGROUND(f) ((f)->background)
1012 #define FRAME_NS_TITLEBAR_HEIGHT(f) ((f)->output_data.ns->titlebar_height)
1013 #define FRAME_TOOLBAR_HEIGHT(f) ((f)->output_data.ns->toolbar_height)
1014
1015 #define FRAME_DEFAULT_FACE(f) FACE_FROM_ID (f, DEFAULT_FACE_ID)
1016
1017 #define FRAME_NS_VIEW(f) ((f)->output_data.ns->view)
1018 #define FRAME_CURSOR_COLOR(f) ((f)->output_data.ns->cursor_color)
1019 #define FRAME_POINTER_TYPE(f) ((f)->output_data.ns->current_pointer)
1020
1021 #define FRAME_FONT(f) ((f)->output_data.ns->font)
1022
1023 #ifdef __OBJC__
1024 #define XNS_SCROLL_BAR(vec) ((id) XSAVE_POINTER (vec, 0))
1025 #else
1026 #define XNS_SCROLL_BAR(vec) XSAVE_POINTER (vec, 0)
1027 #endif
1028
1029 /* Compute pixel size for vertical scroll bars */
1030 #define NS_SCROLL_BAR_WIDTH(f)                                          \
1031   (FRAME_HAS_VERTICAL_SCROLL_BARS (f)                                   \
1032    ? rint (FRAME_CONFIG_SCROLL_BAR_WIDTH (f) > 0                        \
1033            ? FRAME_CONFIG_SCROLL_BAR_WIDTH (f)                          \
1034            : (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)))      \
1035    : 0)
1036
1037 /* Compute pixel size for horizontal scroll bars */
1038 #define NS_SCROLL_BAR_HEIGHT(f)                                         \
1039   (FRAME_HAS_HORIZONTAL_SCROLL_BARS (f)                                 \
1040    ? rint (FRAME_CONFIG_SCROLL_BAR_HEIGHT (f) > 0                       \
1041            ? FRAME_CONFIG_SCROLL_BAR_HEIGHT (f)                         \
1042            : (FRAME_SCROLL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)))      \
1043    : 0)
1044
1045 /* Difference btwn char-column-calculated and actual SB widths.
1046    This is only a concern for rendering when SB on left. */
1047 #define NS_SCROLL_BAR_ADJUST(w, f)                              \
1048   (WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_LEFT (w) ?                 \
1049    (FRAME_SCROLL_BAR_COLS (f) * FRAME_COLUMN_WIDTH (f)          \
1050     - NS_SCROLL_BAR_WIDTH (f)) : 0)
1051
1052 /* Difference btwn char-line-calculated and actual SB heights.
1053    This is only a concern for rendering when SB on top. */
1054 #define NS_SCROLL_BAR_ADJUST_HORIZONTALLY(w, f)         \
1055   (WINDOW_HAS_HORIZONTAL_SCROLL_BARS (w) ?              \
1056    (FRAME_SCROLL_BAR_LINES (f) * FRAME_LINE_HEIGHT (f)  \
1057     - NS_SCROLL_BAR_HEIGHT (f)) : 0)
1058
1059 /* XXX: fix for GNUstep inconsistent accounting for titlebar */
1060 #ifdef NS_IMPL_GNUSTEP
1061 #define NS_TOP_POS(f) ((f)->top_pos + 18)
1062 #else
1063 #define NS_TOP_POS(f) ((f)->top_pos)
1064 #endif
1065
1066 #define FRAME_NS_FONT_TABLE(f) (FRAME_DISPLAY_INFO (f)->font_table)
1067
1068 #define FRAME_FONTSET(f) ((f)->output_data.ns->fontset)
1069
1070 #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.ns->baseline_offset)
1071 #define BLACK_PIX_DEFAULT(f) 0x000000
1072 #define WHITE_PIX_DEFAULT(f) 0xFFFFFF
1073
1074 /* First position where characters can be shown (instead of scrollbar, if
1075    it is on left. */
1076 #define FIRST_CHAR_POSITION(f)                          \
1077   (! (FRAME_HAS_VERTICAL_SCROLL_BARS_ON_LEFT (f)) ? 0   \
1078    : FRAME_SCROLL_BAR_COLS (f))
1079
1080 extern struct ns_display_info *ns_term_init (Lisp_Object display_name);
1081 extern void ns_term_shutdown (int sig);
1082
1083 /* constants for text rendering */
1084 #define NS_DUMPGLYPH_NORMAL             0
1085 #define NS_DUMPGLYPH_CURSOR             1
1086 #define NS_DUMPGLYPH_FOREGROUND         2
1087 #define NS_DUMPGLYPH_MOUSEFACE          3
1088
1089
1090
1091 /* In nsfont, called from fontset.c */
1092 extern void nsfont_make_fontset_for_font (Lisp_Object name,
1093                                          Lisp_Object font_object);
1094
1095 /* In nsfont, for debugging */
1096 struct glyph_string;
1097 void ns_dump_glyphstring (struct glyph_string *s);
1098
1099 /* Implemented in nsterm, published in or needed from nsfns. */
1100 extern Lisp_Object ns_list_fonts (struct frame *f, Lisp_Object pattern,
1101                                   int size, int maxnames);
1102 extern void ns_clear_frame (struct frame *f);
1103
1104 extern const char *ns_xlfd_to_fontname (const char *xlfd);
1105
1106 extern Lisp_Object ns_map_event_to_object (void);
1107 #ifdef __OBJC__
1108 extern Lisp_Object ns_string_from_pasteboard (id pb);
1109 extern void ns_string_to_pasteboard (id pb, Lisp_Object str);
1110 #endif
1111 extern Lisp_Object ns_get_local_selection (Lisp_Object selection_name,
1112                                            Lisp_Object target_type);
1113 extern void nxatoms_of_nsselect (void);
1114 extern int ns_lisp_to_cursor_type (Lisp_Object arg);
1115 extern Lisp_Object ns_cursor_type_to_lisp (int arg);
1116 extern void ns_set_name_as_filename (struct frame *f);
1117 extern void ns_set_doc_edited (void);
1118
1119 extern bool
1120 ns_defined_color (struct frame *f,
1121                   const char *name,
1122                   XColor *color_def, bool alloc,
1123                   bool makeIndex);
1124 extern void
1125 ns_query_color (void *col, XColor *color_def, int setPixel);
1126
1127 #ifdef __OBJC__
1128 extern Lisp_Object ns_color_to_lisp (NSColor *col);
1129 extern int ns_lisp_to_color (Lisp_Object color, NSColor **col);
1130 extern NSColor *ns_lookup_indexed_color (unsigned long idx, struct frame *f);
1131 extern unsigned long ns_index_color (NSColor *color, struct frame *f);
1132 extern void ns_free_indexed_color (unsigned long idx, struct frame *f);
1133 extern const char *ns_get_pending_menu_title (void);
1134 extern void ns_check_menu_open (NSMenu *menu);
1135 extern void ns_check_pending_open_menu (void);
1136 #endif
1137
1138 /* C access to ObjC functionality */
1139 extern void  ns_release_object (void *obj);
1140 extern void  ns_retain_object (void *obj);
1141 extern void *ns_alloc_autorelease_pool (void);
1142 extern void ns_release_autorelease_pool (void *);
1143 extern const char *ns_get_defaults_value (const char *key);
1144 extern void ns_init_locale (void);
1145
1146
1147 /* in nsmenu */
1148 extern void update_frame_tool_bar (struct frame *f);
1149 extern void free_frame_tool_bar (struct frame *f);
1150 extern void find_and_call_menu_selection (struct frame *f,
1151     int menu_bar_items_used, Lisp_Object vector, void *client_data);
1152 extern Lisp_Object find_and_return_menu_selection (struct frame *f,
1153                                                    bool keymaps,
1154                                                    void *client_data);
1155 extern Lisp_Object ns_popup_dialog (struct frame *, Lisp_Object header,
1156                                     Lisp_Object contents);
1157
1158 #define NSAPP_DATA2_RUNASSCRIPT 10
1159 extern void ns_run_ascript (void);
1160
1161 #define NSAPP_DATA2_RUNFILEDIALOG 11
1162 extern void ns_run_file_dialog (void);
1163
1164 extern const char *ns_etc_directory (void);
1165 extern const char *ns_exec_path (void);
1166 extern const char *ns_load_path (void);
1167 extern void syms_of_nsterm (void);
1168 extern void syms_of_nsfns (void);
1169 extern void syms_of_nsmenu (void);
1170 extern void syms_of_nsselect (void);
1171
1172 /* From nsimage.m, needed in image.c */
1173 struct image;
1174 extern void *ns_image_from_XBM (unsigned char *bits, int width, int height,
1175                                 unsigned long fg, unsigned long bg);
1176 extern void *ns_image_for_XPM (int width, int height, int depth);
1177 extern void *ns_image_from_file (Lisp_Object file);
1178 extern bool ns_load_image (struct frame *f, struct image *img,
1179                            Lisp_Object spec_file, Lisp_Object spec_data);
1180 extern int ns_image_width (void *img);
1181 extern int ns_image_height (void *img);
1182 extern unsigned long ns_get_pixel (void *img, int x, int y);
1183 extern void ns_put_pixel (void *img, int x, int y, unsigned long argb);
1184 extern void ns_set_alpha (void *img, int x, int y, unsigned char a);
1185
1186 extern int x_display_pixel_height (struct ns_display_info *);
1187 extern int x_display_pixel_width (struct ns_display_info *);
1188
1189 /* This in nsterm.m */
1190 extern void x_destroy_window (struct frame *f);
1191 extern int ns_select (int nfds, fd_set *readfds, fd_set *writefds,
1192                       fd_set *exceptfds, struct timespec const *timeout,
1193                       sigset_t const *sigmask);
1194 extern unsigned long ns_get_rgb_color (struct frame *f,
1195                                        float r, float g, float b, float a);
1196
1197 extern void ns_init_events ();
1198 extern void ns_finish_events ();
1199
1200 #ifdef __OBJC__
1201 /* From nsterm.m, needed in nsfont.m. */
1202 extern void
1203 ns_draw_text_decoration (struct glyph_string *s, struct face *face,
1204                          NSColor *defaultCol, CGFloat width, CGFloat x);
1205 /* Needed in nsfns.m.  */
1206 extern void
1207 ns_set_represented_filename (NSString* fstr, struct frame *f);
1208
1209 #endif
1210
1211 #ifdef NS_IMPL_GNUSTEP
1212 extern char gnustep_base_version[];  /* version tracking */
1213 #endif
1214
1215 #define MINWIDTH 10
1216 #define MINHEIGHT 10
1217
1218 /* Screen max coordinate
1219  Using larger coordinates causes movewindow/placewindow to abort */
1220 #define SCREENMAX 16000
1221
1222 #define NS_SCROLL_BAR_WIDTH_DEFAULT     [EmacsScroller scrollerWidth]
1223 #define NS_SCROLL_BAR_HEIGHT_DEFAULT    [EmacsScroller scrollerHeight]
1224 /* This is to match emacs on other platforms, ugly though it is. */
1225 #define NS_SELECTION_BG_COLOR_DEFAULT   @"LightGoldenrod2";
1226 #define NS_SELECTION_FG_COLOR_DEFAULT   @"Black";
1227 #define RESIZE_HANDLE_SIZE 12
1228
1229 /* Little utility macros */
1230 #define IN_BOUND(min, x, max) (((x) < (min)) \
1231                                 ? (min) : (((x)>(max)) ? (max) : (x)))
1232 #define SCREENMAXBOUND(x) (IN_BOUND (-SCREENMAX, x, SCREENMAX))
1233
1234 #endif  /* HAVE_NS */