| 1 | /* Definitions and headers for communication on the Microsoft W32 API. |
| 2 | Copyright (C) 1995, 2001 Free Software Foundation, Inc. |
| 3 | |
| 4 | This file is part of GNU Emacs. |
| 5 | |
| 6 | GNU Emacs is free software; you can redistribute it and/or modify |
| 7 | it under the terms of the GNU General Public License as published by |
| 8 | the Free Software Foundation; either version 2, or (at your option) |
| 9 | any later version. |
| 10 | |
| 11 | GNU Emacs is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | GNU General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU General Public License |
| 17 | along with GNU Emacs; see the file COPYING. If not, write to |
| 18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 19 | Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | /* Added by Kevin Gallo */ |
| 22 | |
| 23 | #include "w32gui.h" |
| 24 | |
| 25 | /* The class of this X application. */ |
| 26 | #define EMACS_CLASS "Emacs" |
| 27 | \f |
| 28 | #define BLACK_PIX_DEFAULT(f) PALETTERGB(0,0,0) |
| 29 | #define WHITE_PIX_DEFAULT(f) PALETTERGB(255,255,255) |
| 30 | |
| 31 | #define FONT_WIDTH(f) \ |
| 32 | ((f)->bdf ? (f)->bdf->width : (f)->tm.tmAveCharWidth) |
| 33 | #define FONT_HEIGHT(f) \ |
| 34 | ((f)->bdf ? (f)->bdf->height : (f)->tm.tmHeight) |
| 35 | #define FONT_BASE(f) \ |
| 36 | ((f)->bdf ? (f)->bdf->ury : (f)->tm.tmAscent) |
| 37 | #define FONT_DESCENT(f) \ |
| 38 | ((f)->bdf ? -((f)->bdf->lly) : (f)->tm.tmDescent) |
| 39 | #define FONT_MAX_WIDTH(f) \ |
| 40 | ((f)->bdf ? (f)->bdf->width : (f)->tm.tmMaxCharWidth) |
| 41 | |
| 42 | #define CP_DEFAULT 1004 |
| 43 | /* Special pseudo-codepages. */ |
| 44 | #define CP_8BIT -1 |
| 45 | #define CP_UNICODE -2 |
| 46 | #define CP_UNKNOWN -3 |
| 47 | |
| 48 | #define CHECK_W32_FRAME(f, frame) \ |
| 49 | if (NILP (frame)) \ |
| 50 | f = SELECTED_FRAME (); \ |
| 51 | else \ |
| 52 | { \ |
| 53 | CHECK_LIVE_FRAME (frame, 0); \ |
| 54 | f = XFRAME (frame); \ |
| 55 | } \ |
| 56 | if (! FRAME_W32_P (f)) |
| 57 | |
| 58 | /* Indicates whether we are in the readsocket call and the message we |
| 59 | are processing in the current loop */ |
| 60 | |
| 61 | extern MSG CurMsg; |
| 62 | extern BOOL bUseDflt; |
| 63 | |
| 64 | extern struct frame *x_window_to_frame (); |
| 65 | |
| 66 | /* Structure recording bitmaps and reference count. |
| 67 | If REFCOUNT is 0 then this record is free to be reused. */ |
| 68 | |
| 69 | struct w32_bitmap_record |
| 70 | { |
| 71 | Pixmap pixmap; |
| 72 | char *file; |
| 73 | HINSTANCE hinst; /* Used to load the file */ |
| 74 | int refcount; |
| 75 | /* Record some info about this pixmap. */ |
| 76 | int height, width, depth; |
| 77 | }; |
| 78 | |
| 79 | /* Palette book-keeping stuff for mapping requested colors into the |
| 80 | system palette. Keep a ref-counted list of requested colors and |
| 81 | regenerate the app palette whenever the requested list changes. */ |
| 82 | |
| 83 | extern Lisp_Object Vw32_enable_palette; |
| 84 | |
| 85 | struct w32_palette_entry { |
| 86 | struct w32_palette_entry * next; |
| 87 | PALETTEENTRY entry; |
| 88 | #if 0 |
| 89 | unsigned refcount; |
| 90 | #endif |
| 91 | }; |
| 92 | |
| 93 | extern void w32_regenerate_palette(struct frame *f); |
| 94 | |
| 95 | \f |
| 96 | /* For each display (currently only one on w32), we have a structure that |
| 97 | records information about it. */ |
| 98 | |
| 99 | struct w32_display_info |
| 100 | { |
| 101 | /* Chain of all w32_display_info structures. */ |
| 102 | struct w32_display_info *next; |
| 103 | |
| 104 | /* This is a cons cell of the form (NAME . FONT-LIST-CACHE). |
| 105 | The same cons cell also appears in x_display_name_list. */ |
| 106 | Lisp_Object name_list_element; |
| 107 | |
| 108 | /* Number of frames that are on this display. */ |
| 109 | int reference_count; |
| 110 | |
| 111 | /* Dots per inch of the screen. */ |
| 112 | double resx, resy; |
| 113 | |
| 114 | /* Number of planes on this screen. */ |
| 115 | int n_planes; |
| 116 | |
| 117 | /* Number of bits per pixel on this screen. */ |
| 118 | int n_cbits; |
| 119 | |
| 120 | /* Dimensions of this screen. */ |
| 121 | int height, width; |
| 122 | int height_in,width_in; |
| 123 | |
| 124 | /* Mask of things that cause the mouse to be grabbed. */ |
| 125 | int grabbed; |
| 126 | |
| 127 | /* Emacs bitmap-id of the default icon bitmap for this frame. |
| 128 | Or -1 if none has been allocated yet. */ |
| 129 | int icon_bitmap_id; |
| 130 | |
| 131 | /* The root window of this screen. */ |
| 132 | Window root_window; |
| 133 | |
| 134 | /* The cursor to use for vertical scroll bars. */ |
| 135 | Cursor vertical_scroll_bar_cursor; |
| 136 | |
| 137 | /* color palette information. */ |
| 138 | int has_palette; |
| 139 | struct w32_palette_entry * color_list; |
| 140 | unsigned num_colors; |
| 141 | HPALETTE palette; |
| 142 | |
| 143 | /* deferred action flags checked when starting frame update. */ |
| 144 | int regen_palette; |
| 145 | |
| 146 | /* Keystroke that has been faked by Emacs and will be ignored when |
| 147 | received; value is reset after key is received. */ |
| 148 | int faked_key; |
| 149 | |
| 150 | /* A table of all the fonts we have already loaded. */ |
| 151 | struct font_info *font_table; |
| 152 | |
| 153 | /* The current capacity of font_table. */ |
| 154 | int font_table_size; |
| 155 | |
| 156 | /* Minimum width over all characters in all fonts in font_table. */ |
| 157 | int smallest_char_width; |
| 158 | |
| 159 | /* Minimum font height over all fonts in font_table. */ |
| 160 | int smallest_font_height; |
| 161 | |
| 162 | /* Reusable Graphics Context for drawing a cursor in a non-default face. */ |
| 163 | XGCValues *scratch_cursor_gc; |
| 164 | |
| 165 | /* These variables describe the range of text currently shown in its |
| 166 | mouse-face, together with the window they apply to. As long as |
| 167 | the mouse stays within this range, we need not redraw anything on |
| 168 | its account. Rows and columns are glyph matrix positions in |
| 169 | MOUSE_FACE_WINDOW. */ |
| 170 | int mouse_face_beg_row, mouse_face_beg_col; |
| 171 | int mouse_face_beg_x, mouse_face_beg_y; |
| 172 | int mouse_face_end_row, mouse_face_end_col; |
| 173 | int mouse_face_end_x, mouse_face_end_y; |
| 174 | int mouse_face_past_end; |
| 175 | Lisp_Object mouse_face_window; |
| 176 | int mouse_face_face_id; |
| 177 | Lisp_Object mouse_face_overlay; |
| 178 | |
| 179 | /* 1 if a mouse motion event came and we didn't handle it right away because |
| 180 | gc was in progress. */ |
| 181 | int mouse_face_deferred_gc; |
| 182 | |
| 183 | /* FRAME and X, Y position of mouse when last checked for |
| 184 | highlighting. X and Y can be negative or out of range for the frame. */ |
| 185 | struct frame *mouse_face_mouse_frame; |
| 186 | int mouse_face_mouse_x, mouse_face_mouse_y; |
| 187 | |
| 188 | /* Nonzero means defer mouse-motion highlighting. */ |
| 189 | int mouse_face_defer; |
| 190 | |
| 191 | /* Nonzero means that the mouse highlight should not be shown. */ |
| 192 | int mouse_face_hidden; |
| 193 | |
| 194 | int mouse_face_image_state; |
| 195 | |
| 196 | char *w32_id_name; |
| 197 | |
| 198 | /* The number of fonts actually stored in w32_font_table. |
| 199 | font_table[n] is used and valid iff 0 <= n < n_fonts. 0 <= |
| 200 | n_fonts <= font_table_size. and font_table[i].name != 0. */ |
| 201 | int n_fonts; |
| 202 | |
| 203 | /* Pointer to bitmap records. */ |
| 204 | struct w32_bitmap_record *bitmaps; |
| 205 | |
| 206 | /* Allocated size of bitmaps field. */ |
| 207 | int bitmaps_size; |
| 208 | |
| 209 | /* Last used bitmap index. */ |
| 210 | int bitmaps_last; |
| 211 | |
| 212 | /* The frame (if any) which has the window that has keyboard focus. |
| 213 | Zero if none. This is examined by Ffocus_frame in w32fns.c. Note |
| 214 | that a mere EnterNotify event can set this; if you need to know the |
| 215 | last frame specified in a FocusIn or FocusOut event, use |
| 216 | w32_focus_event_frame. */ |
| 217 | struct frame *w32_focus_frame; |
| 218 | |
| 219 | /* The last frame mentioned in a FocusIn or FocusOut event. This is |
| 220 | separate from w32_focus_frame, because whether or not LeaveNotify |
| 221 | events cause us to lose focus depends on whether or not we have |
| 222 | received a FocusIn event for it. */ |
| 223 | struct frame *w32_focus_event_frame; |
| 224 | |
| 225 | /* The frame which currently has the visual highlight, and should get |
| 226 | keyboard input (other sorts of input have the frame encoded in the |
| 227 | event). It points to the focus frame's selected window's |
| 228 | frame. It differs from w32_focus_frame when we're using a global |
| 229 | minibuffer. */ |
| 230 | struct frame *x_highlight_frame; |
| 231 | |
| 232 | /* Cache of images. */ |
| 233 | struct image_cache *image_cache; |
| 234 | }; |
| 235 | |
| 236 | /* This is a chain of structures for all the displays currently in use. */ |
| 237 | extern struct w32_display_info *x_display_list; |
| 238 | extern struct w32_display_info one_w32_display_info; |
| 239 | |
| 240 | /* This is a list of cons cells, each of the form (NAME . FONT-LIST-CACHE), |
| 241 | one for each element of w32_display_list and in the same order. |
| 242 | NAME is the name of the frame. |
| 243 | FONT-LIST-CACHE records previous values returned by x-list-fonts. */ |
| 244 | extern Lisp_Object w32_display_name_list; |
| 245 | |
| 246 | /* Regexp matching a font name whose width is the same as `PIXEL_SIZE'. */ |
| 247 | extern Lisp_Object Vx_pixel_size_width_font_regexp; |
| 248 | |
| 249 | /* A flag to control how to display unibyte 8-bit character. */ |
| 250 | extern int unibyte_display_via_language_environment; |
| 251 | |
| 252 | struct w32_display_info *x_display_info_for_name (); |
| 253 | |
| 254 | extern struct w32_display_info *w32_term_init (); |
| 255 | \f |
| 256 | extern Lisp_Object w32_list_fonts P_ ((struct frame *, Lisp_Object, int, int)); |
| 257 | extern struct font_info *w32_get_font_info (), *w32_query_font (); |
| 258 | extern void w32_cache_char_metrics (XFontStruct *font); |
| 259 | extern void w32_find_ccl_program(); |
| 260 | \f |
| 261 | #define PIX_TYPE COLORREF |
| 262 | |
| 263 | /* Each W32 frame object points to its own struct w32_display object |
| 264 | in the output_data.w32 field. The w32_display structure contains all |
| 265 | the information that is specific to W32 windows. */ |
| 266 | |
| 267 | /* Put some things in x_output for compatibility. |
| 268 | NTEMACS_TODO: Move all common things here to eliminate unneccesary |
| 269 | diffs between X and w32 code. */ |
| 270 | struct x_output |
| 271 | { |
| 272 | PIX_TYPE background_pixel; |
| 273 | PIX_TYPE foreground_pixel; |
| 274 | }; |
| 275 | |
| 276 | |
| 277 | struct w32_output |
| 278 | { |
| 279 | /* Placeholder for things accessed through output_data.x. */ |
| 280 | struct x_output x_compatible; |
| 281 | |
| 282 | /* Menubar "widget" handle. */ |
| 283 | HMENU menubar_widget; |
| 284 | |
| 285 | /* Original palette (used to deselect real palette after drawing) */ |
| 286 | HPALETTE old_palette; |
| 287 | |
| 288 | /* Position of the W32 window (x and y offsets in root window). */ |
| 289 | int left_pos; |
| 290 | int top_pos; |
| 291 | |
| 292 | /* Border width of the W32 window as known by the window system. */ |
| 293 | int border_width; |
| 294 | |
| 295 | /* Size of the W32 window in pixels. */ |
| 296 | int pixel_height, pixel_width; |
| 297 | |
| 298 | /* Height of a line, in pixels. */ |
| 299 | int line_height; |
| 300 | |
| 301 | /* Here are the Graphics Contexts for the default font. */ |
| 302 | XGCValues *cursor_gc; /* cursor drawing */ |
| 303 | |
| 304 | /* Width of the internal border. This is a line of background color |
| 305 | just inside the window's border. When the frame is selected, |
| 306 | a highlighting is displayed inside the internal border. */ |
| 307 | int internal_border_width; |
| 308 | |
| 309 | /* The window used for this frame. |
| 310 | May be zero while the frame object is being created |
| 311 | and the window has not yet been created. */ |
| 312 | Window window_desc; |
| 313 | |
| 314 | /* The window that is the parent of this window. |
| 315 | Usually this is a window that was made by the window manager, |
| 316 | but it can be the root window, and it can be explicitly specified |
| 317 | (see the explicit_parent field, below). */ |
| 318 | Window parent_desc; |
| 319 | |
| 320 | /* Default ASCII font of this frame. */ |
| 321 | XFontStruct *font; |
| 322 | |
| 323 | /* The baseline offset of the default ASCII font. */ |
| 324 | int baseline_offset; |
| 325 | |
| 326 | /* If a fontset is specified for this frame instead of font, this |
| 327 | value contains an ID of the fontset, else -1. */ |
| 328 | int fontset; |
| 329 | |
| 330 | /* Pixel values used for various purposes. |
| 331 | border_pixel may be -1 meaning use a gray tile. */ |
| 332 | COLORREF cursor_pixel; |
| 333 | COLORREF border_pixel; |
| 334 | COLORREF mouse_pixel; |
| 335 | COLORREF cursor_foreground_pixel; |
| 336 | |
| 337 | /* Foreground color for scroll bars. A value of -1 means use the |
| 338 | default (black for non-toolkit scroll bars). */ |
| 339 | COLORREF scroll_bar_foreground_pixel; |
| 340 | |
| 341 | /* Background color for scroll bars. A value of -1 means use the |
| 342 | default (background color of the frame for non-toolkit scroll |
| 343 | bars). */ |
| 344 | COLORREF scroll_bar_background_pixel; |
| 345 | |
| 346 | /* Descriptor for the cursor in use for this window. */ |
| 347 | Cursor text_cursor; |
| 348 | Cursor nontext_cursor; |
| 349 | Cursor modeline_cursor; |
| 350 | Cursor cross_cursor; |
| 351 | Cursor hourglass_cursor; |
| 352 | Cursor horizontal_drag_cursor; |
| 353 | Cursor hand_cursor; |
| 354 | |
| 355 | /* Window whose cursor is hourglass_cursor. This window is |
| 356 | temporarily mapped to display an hourglass cursor. */ |
| 357 | Window hourglass_window; |
| 358 | |
| 359 | /* Non-zero means hourglass cursor is currently displayed. */ |
| 360 | unsigned hourglass_p : 1; |
| 361 | |
| 362 | /* Flag to set when the window needs to be completely repainted. */ |
| 363 | int needs_exposure; |
| 364 | |
| 365 | DWORD dwStyle; |
| 366 | |
| 367 | /* The size of the extra width currently allotted for vertical |
| 368 | scroll bars, in pixels. */ |
| 369 | int vertical_scroll_bar_extra; |
| 370 | |
| 371 | /* The extra width currently allotted for the areas in which |
| 372 | truncation marks, continuation marks, and overlay arrows are |
| 373 | displayed. */ |
| 374 | int left_fringe_width, right_fringe_width; |
| 375 | int fringe_cols, fringes_extra; |
| 376 | |
| 377 | /* This is the gravity value for the specified window position. */ |
| 378 | int win_gravity; |
| 379 | |
| 380 | /* The geometry flags for this window. */ |
| 381 | int size_hint_flags; |
| 382 | |
| 383 | /* This is the Emacs structure for the display this frame is on. */ |
| 384 | /* struct w32_display_info *display_info; */ |
| 385 | |
| 386 | /* Nonzero means our parent is another application's window |
| 387 | and was explicitly specified. */ |
| 388 | char explicit_parent; |
| 389 | |
| 390 | /* Nonzero means tried already to make this frame visible. */ |
| 391 | char asked_for_visible; |
| 392 | |
| 393 | /* Nonzero means menubar is currently active. */ |
| 394 | char menubar_active; |
| 395 | |
| 396 | /* Nonzero means a menu command is being processed. */ |
| 397 | char menu_command_in_progress; |
| 398 | |
| 399 | /* Nonzero means menubar is about to become active, but should be |
| 400 | brought up to date first. */ |
| 401 | volatile char pending_menu_activation; |
| 402 | |
| 403 | /* Relief GCs, colors etc. */ |
| 404 | struct relief |
| 405 | { |
| 406 | XGCValues *gc; |
| 407 | unsigned long pixel; |
| 408 | int allocated_p; |
| 409 | } |
| 410 | black_relief, white_relief; |
| 411 | |
| 412 | /* The background for which the above relief GCs were set up. |
| 413 | They are changed only when a different background is involved. */ |
| 414 | unsigned long relief_background; |
| 415 | |
| 416 | /* See enum below */ |
| 417 | int want_fullscreen; |
| 418 | |
| 419 | /* This many pixels are the difference between the outer window (i.e. the |
| 420 | left of the window manager decoration) and FRAME_W32_WINDOW. */ |
| 421 | int x_pixels_diff; |
| 422 | |
| 423 | /* This many pixels are the difference between the outer window (i.e. the |
| 424 | top of the window manager titlebar) and FRAME_W32_WINDOW. */ |
| 425 | int y_pixels_diff; |
| 426 | }; |
| 427 | |
| 428 | extern struct w32_output w32term_display; |
| 429 | |
| 430 | enum |
| 431 | { |
| 432 | /* Values used as a bit mask, BOTH == WIDTH | HEIGHT. */ |
| 433 | FULLSCREEN_NONE = 0, |
| 434 | FULLSCREEN_WIDTH = 1, |
| 435 | FULLSCREEN_HEIGHT = 2, |
| 436 | FULLSCREEN_BOTH = 3, |
| 437 | FULLSCREEN_WAIT = 4, |
| 438 | FULLSCREEN_MOVE_WAIT = 8, |
| 439 | }; |
| 440 | |
| 441 | /* Return the window associated with the frame F. */ |
| 442 | #define FRAME_W32_WINDOW(f) ((f)->output_data.w32->window_desc) |
| 443 | |
| 444 | #define FRAME_FOREGROUND_PIXEL(f) ((f)->output_data.x->foreground_pixel) |
| 445 | #define FRAME_BACKGROUND_PIXEL(f) ((f)->output_data.x->background_pixel) |
| 446 | #define FRAME_FONT(f) ((f)->output_data.w32->font) |
| 447 | #define FRAME_FONTSET(f) ((f)->output_data.w32->fontset) |
| 448 | #define FRAME_INTERNAL_BORDER_WIDTH(f) ((f)->output_data.w32->internal_border_width) |
| 449 | #define FRAME_LINE_HEIGHT(f) ((f)->output_data.w32->line_height) |
| 450 | /* Width of the default font of frame F. Must be defined by each |
| 451 | terminal specific header. */ |
| 452 | #define FRAME_DEFAULT_FONT_WIDTH(F) FONT_WIDTH (FRAME_FONT (F)) |
| 453 | #define FRAME_BASELINE_OFFSET(f) ((f)->output_data.w32->baseline_offset) |
| 454 | |
| 455 | /* This gives the w32_display_info structure for the display F is on. */ |
| 456 | #define FRAME_W32_DISPLAY_INFO(f) (&one_w32_display_info) |
| 457 | #define FRAME_X_DISPLAY_INFO(f) (&one_w32_display_info) |
| 458 | |
| 459 | /* This is the 'font_info *' which frame F has. */ |
| 460 | #define FRAME_W32_FONT_TABLE(f) (FRAME_W32_DISPLAY_INFO (f)->font_table) |
| 461 | |
| 462 | /* These two really ought to be called FRAME_PIXEL_{WIDTH,HEIGHT}. */ |
| 463 | #define PIXEL_WIDTH(f) ((f)->output_data.w32->pixel_width) |
| 464 | #define PIXEL_HEIGHT(f) ((f)->output_data.w32->pixel_height) |
| 465 | |
| 466 | /* Value is the smallest width of any character in any font on frame F. */ |
| 467 | |
| 468 | #define FRAME_SMALLEST_CHAR_WIDTH(F) \ |
| 469 | FRAME_W32_DISPLAY_INFO(F)->smallest_char_width |
| 470 | |
| 471 | /* Value is the smallest height of any font on frame F. */ |
| 472 | |
| 473 | #define FRAME_SMALLEST_FONT_HEIGHT(F) \ |
| 474 | FRAME_W32_DISPLAY_INFO(F)->smallest_font_height |
| 475 | |
| 476 | /* Return a pointer to the image cache of frame F. */ |
| 477 | |
| 478 | #define FRAME_X_IMAGE_CACHE(F) FRAME_W32_DISPLAY_INFO ((F))->image_cache |
| 479 | |
| 480 | \f |
| 481 | /* Total width of fringes reserved for drawing truncation bitmaps, |
| 482 | continuation bitmaps and alike. The width is in canonical char |
| 483 | units of the frame. This must currently be the case because window |
| 484 | sizes aren't pixel values. If it weren't the case, we wouldn't be |
| 485 | able to split windows horizontally nicely. */ |
| 486 | |
| 487 | #define FRAME_X_FRINGE_COLS(F) ((F)->output_data.w32->fringe_cols) |
| 488 | |
| 489 | /* Total width of fringes in pixels. */ |
| 490 | |
| 491 | #define FRAME_X_FRINGE_WIDTH(F) ((F)->output_data.w32->fringes_extra) |
| 492 | |
| 493 | /* Pixel-width of the left and right fringe. */ |
| 494 | |
| 495 | #define FRAME_X_LEFT_FRINGE_WIDTH(F) ((F)->output_data.w32->left_fringe_width) |
| 496 | #define FRAME_X_RIGHT_FRINGE_WIDTH(F) ((F)->output_data.w32->right_fringe_width) |
| 497 | |
| 498 | |
| 499 | \f |
| 500 | /* W32-specific scroll bar stuff. */ |
| 501 | |
| 502 | /* We represent scroll bars as lisp vectors. This allows us to place |
| 503 | references to them in windows without worrying about whether we'll |
| 504 | end up with windows referring to dead scroll bars; the garbage |
| 505 | collector will free it when its time comes. |
| 506 | |
| 507 | We use struct scroll_bar as a template for accessing fields of the |
| 508 | vector. */ |
| 509 | |
| 510 | struct scroll_bar { |
| 511 | |
| 512 | /* These fields are shared by all vectors. */ |
| 513 | EMACS_INT size_from_Lisp_Vector_struct; |
| 514 | struct Lisp_Vector *next_from_Lisp_Vector_struct; |
| 515 | |
| 516 | /* The window we're a scroll bar for. */ |
| 517 | Lisp_Object window; |
| 518 | |
| 519 | /* The next and previous in the chain of scroll bars in this frame. */ |
| 520 | Lisp_Object next, prev; |
| 521 | |
| 522 | /* The window representing this scroll bar. Since this is a full |
| 523 | 32-bit quantity, we store it split into two 32-bit values. */ |
| 524 | Lisp_Object w32_window_low, w32_window_high; |
| 525 | |
| 526 | /* Same as above for the widget. */ |
| 527 | Lisp_Object w32_widget_low, w32_widget_high; |
| 528 | |
| 529 | /* The position and size of the scroll bar in pixels, relative to the |
| 530 | frame. */ |
| 531 | Lisp_Object top, left, width, height; |
| 532 | |
| 533 | /* The starting and ending positions of the handle, relative to the |
| 534 | handle area (i.e. zero is the top position, not |
| 535 | SCROLL_BAR_TOP_BORDER). If they're equal, that means the handle |
| 536 | hasn't been drawn yet. |
| 537 | |
| 538 | These are not actually the locations where the beginning and end |
| 539 | are drawn; in order to keep handles from becoming invisible when |
| 540 | editing large files, we establish a minimum height by always |
| 541 | drawing handle bottoms VERTICAL_SCROLL_BAR_MIN_HANDLE pixels below |
| 542 | where they would be normally; the bottom and top are in a |
| 543 | different co-ordinate system. */ |
| 544 | Lisp_Object start, end; |
| 545 | |
| 546 | /* If the scroll bar handle is currently being dragged by the user, |
| 547 | this is the number of pixels from the top of the handle to the |
| 548 | place where the user grabbed it. If the handle isn't currently |
| 549 | being dragged, this is Qnil. */ |
| 550 | Lisp_Object dragging; |
| 551 | }; |
| 552 | |
| 553 | /* The number of elements a vector holding a struct scroll_bar needs. */ |
| 554 | #define SCROLL_BAR_VEC_SIZE \ |
| 555 | ((sizeof (struct scroll_bar) \ |
| 556 | - sizeof (EMACS_INT) - sizeof (struct Lisp_Vector *)) \ |
| 557 | / sizeof (Lisp_Object)) |
| 558 | |
| 559 | /* Turning a lisp vector value into a pointer to a struct scroll_bar. */ |
| 560 | #define XSCROLL_BAR(vec) ((struct scroll_bar *) XVECTOR (vec)) |
| 561 | |
| 562 | |
| 563 | /* Building a 32-bit C integer from two 16-bit lisp integers. */ |
| 564 | #define SCROLL_BAR_PACK(low, high) (XINT (high) << 16 | XINT (low)) |
| 565 | |
| 566 | /* Setting two lisp integers to the low and high words of a 32-bit C int. */ |
| 567 | #define SCROLL_BAR_UNPACK(low, high, int32) \ |
| 568 | (XSETINT ((low), (int32) & 0xffff), \ |
| 569 | XSETINT ((high), ((int32) >> 16) & 0xffff)) |
| 570 | |
| 571 | |
| 572 | /* Extract the window id of the scroll bar from a struct scroll_bar. */ |
| 573 | #define SCROLL_BAR_W32_WINDOW(ptr) \ |
| 574 | ((Window) SCROLL_BAR_PACK ((ptr)->w32_window_low, (ptr)->w32_window_high)) |
| 575 | |
| 576 | /* Store a window id in a struct scroll_bar. */ |
| 577 | #define SET_SCROLL_BAR_W32_WINDOW(ptr, id) \ |
| 578 | (SCROLL_BAR_UNPACK ((ptr)->w32_window_low, (ptr)->w32_window_high, (int) id)) |
| 579 | |
| 580 | /* Extract the X widget of the scroll bar from a struct scroll_bar. */ |
| 581 | #define SCROLL_BAR_X_WIDGET(ptr) \ |
| 582 | ((Widget) SCROLL_BAR_PACK ((ptr)->x_widget_low, (ptr)->x_widget_high)) |
| 583 | |
| 584 | /* Store a widget id in a struct scroll_bar. */ |
| 585 | #define SET_SCROLL_BAR_X_WIDGET(ptr, w) \ |
| 586 | (SCROLL_BAR_UNPACK ((ptr)->x_widget_low, (ptr)->x_widget_high, (int) w)) |
| 587 | |
| 588 | /* Return the inside width of a vertical scroll bar, given the outside |
| 589 | width. */ |
| 590 | #define VERTICAL_SCROLL_BAR_INSIDE_WIDTH(f,width) \ |
| 591 | ((width) \ |
| 592 | - VERTICAL_SCROLL_BAR_LEFT_BORDER \ |
| 593 | - VERTICAL_SCROLL_BAR_RIGHT_BORDER \ |
| 594 | - VERTICAL_SCROLL_BAR_WIDTH_TRIM * 2) |
| 595 | |
| 596 | /* Return the length of the rectangle within which the top of the |
| 597 | handle must stay. This isn't equivalent to the inside height, |
| 598 | because the scroll bar handle has a minimum height. |
| 599 | |
| 600 | This is the real range of motion for the scroll bar, so when we're |
| 601 | scaling buffer positions to scroll bar positions, we use this, not |
| 602 | VERTICAL_SCROLL_BAR_INSIDE_HEIGHT. */ |
| 603 | #define VERTICAL_SCROLL_BAR_TOP_RANGE(f,height) \ |
| 604 | (VERTICAL_SCROLL_BAR_INSIDE_HEIGHT (f, height) - VERTICAL_SCROLL_BAR_MIN_HANDLE) |
| 605 | |
| 606 | /* Return the inside height of vertical scroll bar, given the outside |
| 607 | height. See VERTICAL_SCROLL_BAR_TOP_RANGE too. */ |
| 608 | #define VERTICAL_SCROLL_BAR_INSIDE_HEIGHT(f,height) \ |
| 609 | ((height) - VERTICAL_SCROLL_BAR_TOP_BORDER - VERTICAL_SCROLL_BAR_BOTTOM_BORDER) |
| 610 | |
| 611 | |
| 612 | /* Border widths for scroll bars. |
| 613 | |
| 614 | Scroll bar windows don't have any borders; their border width is |
| 615 | set to zero, and we redraw borders ourselves. This makes the code |
| 616 | a bit cleaner, since we don't have to convert between outside width |
| 617 | (used when relating to the rest of the screen) and inside width |
| 618 | (used when sizing and drawing the scroll bar window itself). |
| 619 | |
| 620 | The handle moves up and down/back and forth in a rectangle inset |
| 621 | from the edges of the scroll bar. These are widths by which we |
| 622 | inset the handle boundaries from the scroll bar edges. */ |
| 623 | #define VERTICAL_SCROLL_BAR_LEFT_BORDER (0) |
| 624 | #define VERTICAL_SCROLL_BAR_RIGHT_BORDER (0) |
| 625 | #define VERTICAL_SCROLL_BAR_TOP_BORDER (vertical_scroll_bar_top_border) |
| 626 | #define VERTICAL_SCROLL_BAR_BOTTOM_BORDER (vertical_scroll_bar_bottom_border) |
| 627 | |
| 628 | /* Minimum lengths for scroll bar handles, in pixels. */ |
| 629 | #define VERTICAL_SCROLL_BAR_MIN_HANDLE (vertical_scroll_bar_min_handle) |
| 630 | |
| 631 | /* Trimming off a few pixels from each side prevents |
| 632 | text from glomming up against the scroll bar */ |
| 633 | #define VERTICAL_SCROLL_BAR_WIDTH_TRIM (0) |
| 634 | |
| 635 | \f |
| 636 | /* Manipulating pixel sizes and character sizes. |
| 637 | Knowledge of which factors affect the overall size of the window should |
| 638 | be hidden in these macros, if that's possible. |
| 639 | |
| 640 | Return the upper/left pixel position of the character cell on frame F |
| 641 | at ROW/COL. */ |
| 642 | #define CHAR_TO_PIXEL_ROW(f, row) \ |
| 643 | ((f)->output_data.w32->internal_border_width \ |
| 644 | + (row) * (f)->output_data.w32->line_height) |
| 645 | #define CHAR_TO_PIXEL_COL(f, col) \ |
| 646 | ((f)->output_data.w32->internal_border_width \ |
| 647 | + (col) * FONT_WIDTH ((f)->output_data.w32->font)) |
| 648 | |
| 649 | /* Return the pixel width/height of frame F if it has |
| 650 | WIDTH columns/HEIGHT rows. */ |
| 651 | #define CHAR_TO_PIXEL_WIDTH(f, width) \ |
| 652 | (CHAR_TO_PIXEL_COL (f, width) \ |
| 653 | + (f)->output_data.w32->vertical_scroll_bar_extra \ |
| 654 | + (f)->output_data.w32->fringes_extra \ |
| 655 | + (f)->output_data.w32->internal_border_width) |
| 656 | #define CHAR_TO_PIXEL_HEIGHT(f, height) \ |
| 657 | (CHAR_TO_PIXEL_ROW (f, height) \ |
| 658 | + (f)->output_data.w32->internal_border_width) |
| 659 | |
| 660 | |
| 661 | /* Return the row/column (zero-based) of the character cell containing |
| 662 | the pixel on FRAME at ROW/COL. */ |
| 663 | #define PIXEL_TO_CHAR_ROW(f, row) \ |
| 664 | (((row) - (f)->output_data.w32->internal_border_width) \ |
| 665 | / (f)->output_data.w32->line_height) |
| 666 | #define PIXEL_TO_CHAR_COL(f, col) \ |
| 667 | (((col) - (f)->output_data.w32->internal_border_width) \ |
| 668 | / FONT_WIDTH ((f)->output_data.w32->font)) |
| 669 | |
| 670 | /* How many columns/rows of text can we fit in WIDTH/HEIGHT pixels on |
| 671 | frame F? */ |
| 672 | #define PIXEL_TO_CHAR_WIDTH(f, width) \ |
| 673 | (PIXEL_TO_CHAR_COL (f, ((width) \ |
| 674 | - (f)->output_data.w32->internal_border_width \ |
| 675 | - (f)->output_data.w32->fringes_extra \ |
| 676 | - (f)->output_data.w32->vertical_scroll_bar_extra))) |
| 677 | #define PIXEL_TO_CHAR_HEIGHT(f, height) \ |
| 678 | (PIXEL_TO_CHAR_ROW (f, ((height) \ |
| 679 | - (f)->output_data.w32->internal_border_width))) |
| 680 | |
| 681 | \f |
| 682 | extern void w32_fill_rect (); |
| 683 | extern void w32_clear_window (); |
| 684 | |
| 685 | #define w32_fill_area(f,hdc,pix,x,y,nx,ny) \ |
| 686 | { \ |
| 687 | RECT rect; \ |
| 688 | rect.left = x; \ |
| 689 | rect.top = y; \ |
| 690 | rect.right = x + nx; \ |
| 691 | rect.bottom = y + ny; \ |
| 692 | w32_fill_rect (f,hdc,pix,&rect); \ |
| 693 | } |
| 694 | |
| 695 | #define w32_clear_rect(f,hdc,lprect) \ |
| 696 | w32_fill_rect (f,hdc,f->output_data.x->background_pixel,lprect) |
| 697 | |
| 698 | #define w32_clear_area(f,hdc,px,py,nx,ny) \ |
| 699 | w32_fill_area (f,hdc,f->output_data.x->background_pixel,px,py,nx,ny) |
| 700 | |
| 701 | extern struct font_info *w32_load_font (); |
| 702 | extern void w32_unload_font (); |
| 703 | |
| 704 | extern void x_fullscreen_adjust P_ ((struct frame *f, int *, int *, |
| 705 | int *, int *)); |
| 706 | |
| 707 | /* Define for earlier versions of Visual C */ |
| 708 | #ifndef WM_MOUSEWHEEL |
| 709 | #define WM_MOUSEWHEEL (WM_MOUSELAST + 1) |
| 710 | #endif /* WM_MOUSEWHEEL */ |
| 711 | #ifndef MSH_MOUSEWHEEL |
| 712 | #define MSH_MOUSEWHEEL "MSWHEEL_ROLLMSG" |
| 713 | #endif /* MSH_MOUSEWHEEL */ |
| 714 | #ifndef WM_XBUTTONDOWN |
| 715 | #define WM_XBUTTONDOWN (WM_MOUSEWHEEL + 1) |
| 716 | #define WM_XBUTTONUP (WM_MOUSEWHEEL + 2) |
| 717 | #endif /* WM_XBUTTONDOWN */ |
| 718 | |
| 719 | #define WM_EMACS_START (WM_USER + 1) |
| 720 | #define WM_EMACS_KILL (WM_EMACS_START + 0) |
| 721 | #define WM_EMACS_CREATEWINDOW (WM_EMACS_START + 1) |
| 722 | #define WM_EMACS_DONE (WM_EMACS_START + 2) |
| 723 | #define WM_EMACS_CREATESCROLLBAR (WM_EMACS_START + 3) |
| 724 | #define WM_EMACS_SHOWWINDOW (WM_EMACS_START + 4) |
| 725 | #define WM_EMACS_SETWINDOWPOS (WM_EMACS_START + 5) |
| 726 | #define WM_EMACS_DESTROYWINDOW (WM_EMACS_START + 6) |
| 727 | #define WM_EMACS_TRACKPOPUPMENU (WM_EMACS_START + 7) |
| 728 | #define WM_EMACS_SETFOCUS (WM_EMACS_START + 8) |
| 729 | #define WM_EMACS_SETFOREGROUND (WM_EMACS_START + 9) |
| 730 | #define WM_EMACS_SETLOCALE (WM_EMACS_START + 10) |
| 731 | #define WM_EMACS_SETKEYBOARDLAYOUT (WM_EMACS_START + 11) |
| 732 | #define WM_EMACS_REGISTER_HOT_KEY (WM_EMACS_START + 12) |
| 733 | #define WM_EMACS_UNREGISTER_HOT_KEY (WM_EMACS_START + 13) |
| 734 | #define WM_EMACS_TOGGLE_LOCK_KEY (WM_EMACS_START + 14) |
| 735 | #define WM_EMACS_TRACK_CARET (WM_EMACS_START + 15) |
| 736 | #define WM_EMACS_DESTROY_CARET (WM_EMACS_START + 16) |
| 737 | #define WM_EMACS_SHOW_CARET (WM_EMACS_START + 17) |
| 738 | #define WM_EMACS_HIDE_CARET (WM_EMACS_START + 18) |
| 739 | #define WM_EMACS_SETCURSOR (WM_EMACS_START + 19) |
| 740 | #define WM_EMACS_END (WM_EMACS_START + 20) |
| 741 | |
| 742 | #define WND_FONTWIDTH_INDEX (0) |
| 743 | #define WND_LINEHEIGHT_INDEX (4) |
| 744 | #define WND_BORDER_INDEX (8) |
| 745 | #define WND_SCROLLBAR_INDEX (12) |
| 746 | #define WND_BACKGROUND_INDEX (16) |
| 747 | #define WND_LAST_INDEX (20) |
| 748 | |
| 749 | #define WND_EXTRA_BYTES (WND_LAST_INDEX) |
| 750 | |
| 751 | extern DWORD dwWindowsThreadId; |
| 752 | extern HANDLE hWindowsThread; |
| 753 | extern DWORD dwMainThreadId; |
| 754 | extern HANDLE hMainThread; |
| 755 | |
| 756 | typedef struct W32Msg { |
| 757 | MSG msg; |
| 758 | DWORD dwModifiers; |
| 759 | RECT rect; |
| 760 | } W32Msg; |
| 761 | |
| 762 | /* Structure for recording message when input thread must return a |
| 763 | result that depends on lisp thread to compute. Lisp thread can |
| 764 | complete deferred messages out of order. */ |
| 765 | typedef struct deferred_msg |
| 766 | { |
| 767 | struct deferred_msg * next; |
| 768 | W32Msg w32msg; |
| 769 | LRESULT result; |
| 770 | int completed; |
| 771 | } deferred_msg; |
| 772 | |
| 773 | extern CRITICAL_SECTION critsect; |
| 774 | |
| 775 | extern void init_crit (); |
| 776 | extern void delete_crit (); |
| 777 | |
| 778 | extern void signal_quit (); |
| 779 | |
| 780 | #define enter_crit() EnterCriticalSection (&critsect) |
| 781 | #define leave_crit() LeaveCriticalSection (&critsect) |
| 782 | |
| 783 | extern void select_palette (struct frame * f, HDC hdc); |
| 784 | extern void deselect_palette (struct frame * f, HDC hdc); |
| 785 | extern HDC get_frame_dc (struct frame * f); |
| 786 | extern int release_frame_dc (struct frame * f, HDC hDC); |
| 787 | |
| 788 | extern void drain_message_queue (); |
| 789 | |
| 790 | extern BOOL get_next_msg (); |
| 791 | extern BOOL post_msg (); |
| 792 | extern void complete_deferred_msg (HWND hwnd, UINT msg, LRESULT result); |
| 793 | extern void wait_for_sync (); |
| 794 | |
| 795 | extern BOOL parse_button (); |
| 796 | |
| 797 | /* Keypad command key support. W32 doesn't have virtual keys defined |
| 798 | for the function keys on the keypad (they are mapped to the standard |
| 799 | fuction keys), so we define our own. */ |
| 800 | #define VK_NUMPAD_BEGIN 0x92 |
| 801 | #define VK_NUMPAD_CLEAR (VK_NUMPAD_BEGIN + 0) |
| 802 | #define VK_NUMPAD_ENTER (VK_NUMPAD_BEGIN + 1) |
| 803 | #define VK_NUMPAD_PRIOR (VK_NUMPAD_BEGIN + 2) |
| 804 | #define VK_NUMPAD_NEXT (VK_NUMPAD_BEGIN + 3) |
| 805 | #define VK_NUMPAD_END (VK_NUMPAD_BEGIN + 4) |
| 806 | #define VK_NUMPAD_HOME (VK_NUMPAD_BEGIN + 5) |
| 807 | #define VK_NUMPAD_LEFT (VK_NUMPAD_BEGIN + 6) |
| 808 | #define VK_NUMPAD_UP (VK_NUMPAD_BEGIN + 7) |
| 809 | #define VK_NUMPAD_RIGHT (VK_NUMPAD_BEGIN + 8) |
| 810 | #define VK_NUMPAD_DOWN (VK_NUMPAD_BEGIN + 9) |
| 811 | #define VK_NUMPAD_INSERT (VK_NUMPAD_BEGIN + 10) |
| 812 | #define VK_NUMPAD_DELETE (VK_NUMPAD_BEGIN + 11) |
| 813 | |
| 814 | #ifndef VK_LWIN |
| 815 | /* Older compiler environments don't have these defined. */ |
| 816 | #define VK_LWIN 0x5B |
| 817 | #define VK_RWIN 0x5C |
| 818 | #define VK_APPS 0x5D |
| 819 | #endif |
| 820 | |
| 821 | /* Support for treating Windows and Apps keys as modifiers. These |
| 822 | constants must not overlap with any of the dwControlKeyState flags in |
| 823 | KEY_EVENT_RECORD. */ |
| 824 | #define LEFT_WIN_PRESSED 0x8000 |
| 825 | #define RIGHT_WIN_PRESSED 0x4000 |
| 826 | #define APPS_PRESSED 0x2000 |
| 827 | |
| 828 | /* When compiling on Windows 9x/ME and NT 3.x, the following are not defined |
| 829 | (even though they are supported on 98 and ME. */ |
| 830 | #ifndef WM_MOUSELEAVE |
| 831 | #define WM_MOUSELEAVE 0x02A3 |
| 832 | #define TME_LEAVE 0x00000002; |
| 833 | |
| 834 | typedef struct tagTRACKMOUSEEVENT |
| 835 | { |
| 836 | DWORD cbSize; |
| 837 | DWORD dwFlags; |
| 838 | HWND hwndTrack; |
| 839 | DWORD dwHoverTime; |
| 840 | } TRACKMOUSEEVENT; |
| 841 | #endif |
| 842 | |
| 843 | struct image; |
| 844 | struct face; |
| 845 | |
| 846 | XGCValues *XCreateGC (void *, Window, unsigned long, XGCValues *); |
| 847 | struct frame * check_x_frame (Lisp_Object); |
| 848 | EXFUN (Fx_display_color_p, 1); |
| 849 | EXFUN (Fx_display_grayscale_p, 1); |
| 850 | int image_ascent P_ ((struct image *, struct face *)); |