| 1 | @c This is part of the Emacs manual. |
| 2 | @c Copyright (C) 1987, 1993, 1994, 1995, 1997, 2001, 2002, 2003, |
| 3 | @c 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
| 4 | @c See file emacs.texi for copying conditions. |
| 5 | @node X Resources, Antinews, Emacs Invocation, Top |
| 6 | @appendix X Options and Resources |
| 7 | |
| 8 | You can customize some X-related aspects of Emacs behavior using X |
| 9 | resources, as is usual for programs that use X. On MS-Windows, you |
| 10 | can customize some of the same aspects using the system registry. |
| 11 | @xref{MS-Windows Registry}. Likewise, Emacs on MacOS Carbon emulates X |
| 12 | resources using the Preferences system. @xref{Mac Environment Variables}. |
| 13 | |
| 14 | When Emacs is built using an ``X toolkit'', such as Lucid or |
| 15 | LessTif, you need to use X resources to customize the appearance of |
| 16 | the widgets, including the menu-bar, scroll-bar, and dialog boxes. |
| 17 | This is because the libraries that implement these don't provide for |
| 18 | customization through Emacs. GTK+ widgets use a separate system of |
| 19 | @ifnottex |
| 20 | ``GTK resources'', which we will also describe. |
| 21 | @end ifnottex |
| 22 | @iftex |
| 23 | ``GTK resources.'' In this chapter we describe the most commonly used |
| 24 | resource specifications. For full documentation, see the online |
| 25 | manual. |
| 26 | |
| 27 | @c Add xref for LessTif/Motif menu resources. |
| 28 | @end iftex |
| 29 | |
| 30 | |
| 31 | @menu |
| 32 | * Resources:: Using X resources with Emacs (in general). |
| 33 | * Table of Resources:: Table of specific X resources that affect Emacs. |
| 34 | * Face Resources:: X resources for customizing faces. |
| 35 | * Lucid Resources:: X resources for Lucid menus. |
| 36 | * LessTif Resources:: X resources for LessTif and Motif menus. |
| 37 | * GTK resources:: Resources for GTK widgets. |
| 38 | @end menu |
| 39 | |
| 40 | @node Resources |
| 41 | @appendixsec X Resources |
| 42 | @cindex resources |
| 43 | @cindex X resources |
| 44 | @cindex @file{~/.Xdefaults} file |
| 45 | @cindex @file{~/.Xresources} file |
| 46 | |
| 47 | Programs running under the X Window System organize their user |
| 48 | options under a hierarchy of classes and resources. You can specify |
| 49 | default values for these options in your X resources file, usually |
| 50 | named @file{~/.Xdefaults} or @file{~/.Xresources}. |
| 51 | If changes in @file{~/.Xdefaults} do not |
| 52 | take effect, it is because your X server stores its own list of |
| 53 | resources; to update them, use the shell command @command{xrdb}---for |
| 54 | instance, @samp{xrdb ~/.Xdefaults}. |
| 55 | |
| 56 | Each line in the file specifies a value for one option or for a |
| 57 | collection of related options, for one program or for several programs |
| 58 | (optionally even for all programs). |
| 59 | |
| 60 | @cindex Registry (MS-Windows) |
| 61 | MS-Windows systems do not support @file{~/.Xdefaults} files, so |
| 62 | instead Emacs compiled for Windows looks for X resources in the |
| 63 | Windows Registry, first under the key |
| 64 | @samp{HKEY_CURRENT_USER\SOFTWARE\GNU\Emacs} and then under the key |
| 65 | @samp{HKEY_LOCAL_MACHINE\SOFTWARE\GNU\Emacs}. The menu and scroll |
| 66 | bars are native widgets on MS-Windows, so they are only customizable |
| 67 | via the system-wide settings in the Display Control Panel. You can |
| 68 | also set resources using the @samp{-xrm} command line option (see |
| 69 | below.) |
| 70 | |
| 71 | @iftex |
| 72 | Applications such as Emacs look for resources with specific names |
| 73 | and their particular meanings. Case distinctions are significant in |
| 74 | these names. Each resource specification in @file{~/.Xdefaults} |
| 75 | states the name of the program and the name of the resource. For |
| 76 | Emacs, the program name is @samp{Emacs}. It looks like this: |
| 77 | |
| 78 | @example |
| 79 | Emacs.borderWidth: 2 |
| 80 | @end example |
| 81 | @end iftex |
| 82 | @ifnottex |
| 83 | Programs define named resources with particular meanings. They also |
| 84 | define how to group resources into named classes. For instance, in |
| 85 | Emacs, the @samp{internalBorder} resource controls the width of the |
| 86 | internal border, and the @samp{borderWidth} resource controls the width |
| 87 | of the external border. Both of these resources are part of the |
| 88 | @samp{BorderWidth} class. Case distinctions are significant in these |
| 89 | names. |
| 90 | |
| 91 | Every resource definition is associated with a specific program |
| 92 | name---the name of the executable file that you ran. For Emacs, that |
| 93 | is normally @samp{emacs}. To specify a definition for all instances |
| 94 | of Emacs, regardless of their names, use @samp{Emacs}. |
| 95 | |
| 96 | In @file{~/.Xdefaults}, you can specify a value for a single resource |
| 97 | on one line, like this: |
| 98 | |
| 99 | @example |
| 100 | emacs.borderWidth: 2 |
| 101 | @end example |
| 102 | |
| 103 | @noindent |
| 104 | Or you can use a class name to specify the same value for all resources |
| 105 | in that class. Here's an example: |
| 106 | |
| 107 | @example |
| 108 | emacs.BorderWidth: 2 |
| 109 | @end example |
| 110 | |
| 111 | If you specify a value for a class, it becomes the default for all |
| 112 | resources in that class. You can specify values for individual |
| 113 | resources as well; these override the class value, for those particular |
| 114 | resources. Thus, this example specifies 2 as the default width for all |
| 115 | borders, but overrides this value with 4 for the external border: |
| 116 | |
| 117 | @example |
| 118 | emacs.BorderWidth: 2 |
| 119 | emacs.borderWidth: 4 |
| 120 | @end example |
| 121 | @end ifnottex |
| 122 | |
| 123 | The order in which the lines appear in the file does not matter. |
| 124 | Also, command-line options always override the X resources file. |
| 125 | |
| 126 | @ifnottex |
| 127 | Here is a list of X command-line options and their corresponding |
| 128 | resource names. |
| 129 | |
| 130 | @table @samp |
| 131 | @item -name @var{name} |
| 132 | @opindex --name |
| 133 | @itemx --name=@var{name} |
| 134 | @cindex resource name, command-line argument |
| 135 | Use @var{name} as the resource name (and the title) for the initial |
| 136 | Emacs frame. This option does not affect subsequent frames, but Lisp |
| 137 | programs can specify frame names when they create frames. |
| 138 | |
| 139 | If you don't specify this option, the default is to use the Emacs |
| 140 | executable's name as the resource name. |
| 141 | |
| 142 | @item -xrm @var{resource-values} |
| 143 | @opindex --xrm |
| 144 | @itemx --xrm=@var{resource-values} |
| 145 | @cindex resource values, command-line argument |
| 146 | Specify X resource values for this Emacs job (see below). |
| 147 | @end table |
| 148 | |
| 149 | For consistency, @samp{-name} also specifies the name to use for |
| 150 | other resource values that do not belong to any particular frame. |
| 151 | |
| 152 | The resources that name Emacs invocations also belong to a class; its |
| 153 | name is @samp{Emacs}. If you write @samp{Emacs} instead of |
| 154 | @samp{emacs}, the resource applies to all frames in all Emacs jobs, |
| 155 | regardless of frame titles and regardless of the name of the executable |
| 156 | file. Here is an example: |
| 157 | |
| 158 | @example |
| 159 | Emacs.BorderWidth: 2 |
| 160 | Emacs.borderWidth: 4 |
| 161 | @end example |
| 162 | |
| 163 | You can specify a string of additional resource values for Emacs to |
| 164 | use with the command line option @samp{-xrm @var{resources}}. The text |
| 165 | @var{resources} should have the same format that you would use inside a file |
| 166 | of X resources. To include multiple resource specifications in |
| 167 | @var{resources}, put a newline between them, just as you would in a file. |
| 168 | You can also use @samp{#include "@var{filename}"} to include a file full |
| 169 | of resource specifications. Resource values specified with @samp{-xrm} |
| 170 | take precedence over all other resource specifications. |
| 171 | |
| 172 | One way to experiment with the effect of different resource settings |
| 173 | is to use the @code{editres} program. Select @samp{Get Tree} from the |
| 174 | @end ifnottex |
| 175 | @iftex |
| 176 | You can experiment with the effect of different resource settings |
| 177 | with the @code{editres} program. Select @samp{Get Tree} from the |
| 178 | @end iftex |
| 179 | @samp{Commands} menu, then click on an Emacs frame. This will display |
| 180 | a tree showing the structure of X toolkit widgets used in an Emacs |
| 181 | frame. Select one of them, such as @samp{menubar}, then select |
| 182 | @samp{Show Resource Box} from the @samp{Commands} menu. This displays |
| 183 | a list of all the meaningful X resources for that widget, and allows |
| 184 | you to edit them. Changes take effect when you click on the |
| 185 | @samp{Apply} button. (See the @code{editres} man page for more |
| 186 | details.) |
| 187 | |
| 188 | @node Table of Resources |
| 189 | @appendixsec Table of X Resources for Emacs |
| 190 | |
| 191 | This table lists the resource names that designate options for |
| 192 | Emacs, not counting those for the appearance of the menu bar, each |
| 193 | with the class that it belongs to: |
| 194 | |
| 195 | @table @asis |
| 196 | @item @code{background} (class @code{Background}) |
| 197 | Background color name. |
| 198 | |
| 199 | @ifnottex |
| 200 | @item @code{bitmapIcon} (class @code{BitmapIcon}) |
| 201 | Use a bitmap icon (a picture of a gnu) if @samp{on}, let the window |
| 202 | manager choose an icon if @samp{off}. |
| 203 | @end ifnottex |
| 204 | |
| 205 | @item @code{borderColor} (class @code{BorderColor}) |
| 206 | Color name for the external border. |
| 207 | |
| 208 | @ifnottex |
| 209 | @item @code{borderWidth} (class @code{BorderWidth}) |
| 210 | Width in pixels of the external border. |
| 211 | @end ifnottex |
| 212 | |
| 213 | @item @code{cursorColor} (class @code{Foreground}) |
| 214 | Color name for text cursor (point). |
| 215 | |
| 216 | @ifnottex |
| 217 | @item @code{cursorBlink} (class @code{CursorBlink}) |
| 218 | Specifies whether to make the cursor blink. The default is @samp{on}. Use |
| 219 | @samp{off} or @samp{false} to turn cursor blinking off. |
| 220 | @end ifnottex |
| 221 | |
| 222 | @item @code{font} (class @code{Font}) |
| 223 | Font name (or fontset name, @pxref{Fontsets}) for @code{default} font. |
| 224 | |
| 225 | @item @code{foreground} (class @code{Foreground}) |
| 226 | Color name for text. |
| 227 | |
| 228 | @item @code{geometry} (class @code{Geometry}) |
| 229 | Window size and position. Be careful not to specify this resource as |
| 230 | @samp{emacs*geometry}, because that may affect individual menus as well |
| 231 | as the Emacs frame itself. |
| 232 | |
| 233 | If this resource specifies a position, that position applies only to the |
| 234 | initial Emacs frame (or, in the case of a resource for a specific frame |
| 235 | name, only that frame). However, the size, if specified here, applies to |
| 236 | all frames. |
| 237 | |
| 238 | @ifnottex |
| 239 | @item @code{fullscreen} (class @code{Fullscreen}) |
| 240 | The desired fullscreen size. The value can be one of @code{fullboth}, |
| 241 | @code{fullwidth} or @code{fullheight}, which correspond to |
| 242 | the command-line options @samp{-fs}, @samp{-fw}, and @samp{-fh} |
| 243 | (@pxref{Window Size X}). |
| 244 | |
| 245 | Note that this applies to the initial frame only. |
| 246 | @end ifnottex |
| 247 | |
| 248 | @item @code{iconName} (class @code{Title}) |
| 249 | Name to display in the icon. |
| 250 | |
| 251 | @item @code{internalBorder} (class @code{BorderWidth}) |
| 252 | Width in pixels of the internal border. |
| 253 | |
| 254 | @item @code{lineSpacing} (class @code{LineSpacing}) |
| 255 | @cindex line spacing |
| 256 | @cindex leading |
| 257 | Additional space (@dfn{leading}) between lines, in pixels. |
| 258 | |
| 259 | @item @code{menuBar} (class @code{MenuBar}) |
| 260 | @cindex menu bar |
| 261 | Give frames menu bars if @samp{on}; don't have menu bars if @samp{off}. |
| 262 | @ifnottex |
| 263 | @xref{Lucid Resources}, and @ref{LessTif Resources}, |
| 264 | @end ifnottex |
| 265 | @iftex |
| 266 | @xref{Lucid Resources}, |
| 267 | @end iftex |
| 268 | for how to control the appearance of the menu bar if you have one. |
| 269 | |
| 270 | @ifnottex |
| 271 | @item @code{minibuffer} (class @code{Minibuffer}) |
| 272 | If @samp{none}, don't make a minibuffer in this frame. |
| 273 | It will use a separate minibuffer frame instead. |
| 274 | |
| 275 | @item @code{paneFont} (class @code{Font}) |
| 276 | @cindex font for menus |
| 277 | Font name for menu pane titles, in non-toolkit versions of Emacs. |
| 278 | @end ifnottex |
| 279 | |
| 280 | @item @code{pointerColor} (class @code{Foreground}) |
| 281 | Color of the mouse cursor. |
| 282 | |
| 283 | @ifnottex |
| 284 | @item @code{privateColormap} (class @code{PrivateColormap}) |
| 285 | If @samp{on}, use a private color map, in the case where the ``default |
| 286 | visual'' of class PseudoColor and Emacs is using it. |
| 287 | |
| 288 | @item @code{reverseVideo} (class @code{ReverseVideo}) |
| 289 | Switch foreground and background default colors if @samp{on}, use colors as |
| 290 | specified if @samp{off}. |
| 291 | @end ifnottex |
| 292 | |
| 293 | @item @code{screenGamma} (class @code{ScreenGamma}) |
| 294 | @cindex gamma correction |
| 295 | Gamma correction for colors, equivalent to the frame parameter |
| 296 | @code{screen-gamma}. |
| 297 | |
| 298 | @item @code{scrollBarWidth} (class @code{ScrollBarWidth}) |
| 299 | @cindex scrollbar width |
| 300 | The scroll bar width in pixels, equivalent to the frame parameter |
| 301 | @code{scroll-bar-width}. |
| 302 | |
| 303 | @ifnottex |
| 304 | @item @code{selectionFont} (class @code{SelectionFont}) |
| 305 | Font name for pop-up menu items, in non-toolkit versions of Emacs. (For |
| 306 | toolkit versions, see @ref{Lucid Resources}, also see @ref{LessTif |
| 307 | Resources}.) |
| 308 | |
| 309 | @item @code{selectionTimeout} (class @code{SelectionTimeout}) |
| 310 | Number of milliseconds to wait for a selection reply. |
| 311 | If the selection owner doesn't reply in this time, we give up. |
| 312 | A value of 0 means wait as long as necessary. |
| 313 | |
| 314 | @item @code{synchronous} (class @code{Synchronous}) |
| 315 | @cindex debugging X problems |
| 316 | @cindex synchronous X mode |
| 317 | Run Emacs in synchronous mode if @samp{on}. Synchronous mode is |
| 318 | useful for debugging X problems. |
| 319 | @end ifnottex |
| 320 | |
| 321 | @item @code{title} (class @code{Title}) |
| 322 | Name to display in the title bar of the initial Emacs frame. |
| 323 | |
| 324 | @item @code{toolBar} (class @code{ToolBar}) |
| 325 | @cindex tool bar |
| 326 | Number of lines to reserve for the tool bar. A zero value suppresses |
| 327 | the tool bar. If the value is non-zero and |
| 328 | @code{auto-resize-tool-bars} is non-@code{nil}, the tool bar's size |
| 329 | will be changed automatically so that all tool bar items are visible. |
| 330 | If the value of @code{auto-resize-tool-bars} is @code{grow-only}, |
| 331 | the tool bar expands automatically, but does not contract automatically. |
| 332 | To contract the tool bar, you must redraw the frame by entering @kbd{C-l}. |
| 333 | |
| 334 | @item @code{useXIM} (class @code{UseXIM}) |
| 335 | @cindex XIM |
| 336 | @cindex X input methods |
| 337 | @cindex input methods, X |
| 338 | Turn off use of X input methods (XIM) if @samp{false} or @samp{off}. |
| 339 | This is only relevant if your Emacs is actually built with XIM |
| 340 | support. It is potentially useful to turn off XIM for efficiency, |
| 341 | especially slow X client/server links. |
| 342 | |
| 343 | @item @code{verticalScrollBars} (class @code{ScrollBars}) |
| 344 | Give frames scroll bars if @samp{on}; don't have scroll bars if |
| 345 | @samp{off}. |
| 346 | |
| 347 | @ifnottex |
| 348 | @item @code{visualClass} (class @code{VisualClass}) |
| 349 | Specify the ``visual'' that X should use. This tells X how to handle |
| 350 | colors. |
| 351 | |
| 352 | The value should start with one of @samp{TrueColor}, |
| 353 | @samp{PseudoColor}, @samp{DirectColor}, @samp{StaticColor}, |
| 354 | @samp{GrayScale}, and @samp{StaticGray}, followed by |
| 355 | @samp{-@var{depth}}, where @var{depth} is the number of color planes. |
| 356 | Most terminals only allow a few ``visuals,'' and the @samp{dpyinfo} |
| 357 | program outputs information saying which ones. |
| 358 | @end ifnottex |
| 359 | @end table |
| 360 | |
| 361 | @node Face Resources |
| 362 | @appendixsec X Resources for Faces |
| 363 | |
| 364 | You can use resources to customize the appearance of particular |
| 365 | faces (@pxref{Faces}): |
| 366 | |
| 367 | @table @code |
| 368 | @item @var{face}.attributeForeground |
| 369 | Foreground color for face @var{face}. |
| 370 | @item @var{face}.attributeBackground |
| 371 | Background color for face @var{face}. |
| 372 | @item @var{face}.attributeUnderline |
| 373 | Underline flag for face @var{face}. Use @samp{on} or @samp{true} for |
| 374 | yes. |
| 375 | @item @var{face}.attributeStrikeThrough |
| 376 | @itemx @var{face}.attributeOverline |
| 377 | @itemx @var{face}.attributeBox |
| 378 | @itemx @var{face}.attributeInverse |
| 379 | Likewise, for other boolean font attributes. |
| 380 | @item @var{face}.attributeStipple |
| 381 | The name of a pixmap data file to use for the stipple pattern, or |
| 382 | @code{false} to not use stipple for the face @var{face}. |
| 383 | @item @var{face}.attributeBackgroundPixmap |
| 384 | The background pixmap for the face @var{face}. Should be a name of a |
| 385 | pixmap file or @code{false}. |
| 386 | @item @var{face}.attributeFont |
| 387 | Font name (full XFD name or valid X abbreviation) for face @var{face}. |
| 388 | Instead of this, you can specify the font through separate attributes. |
| 389 | @end table |
| 390 | |
| 391 | Instead of using @code{attributeFont} to specify a font name, you can |
| 392 | select a font through these separate attributes: |
| 393 | |
| 394 | @table @code |
| 395 | @item @var{face}.attributeFamily |
| 396 | Font family for face @var{face}. |
| 397 | @item @var{face}.attributeHeight |
| 398 | Height of the font to use for face @var{face}: either an integer |
| 399 | specifying the height in units of 1/10@dmn{pt}, or a floating point |
| 400 | number that specifies a scale factor to scale the underlying face's |
| 401 | default font, or a function to be called with the default height which |
| 402 | will return a new height. |
| 403 | @item @var{face}.attributeWidth |
| 404 | @itemx @var{face}.attributeWeight |
| 405 | @itemx @var{face}.attributeSlant |
| 406 | Each of these resources corresponds to a like-named font attribute, |
| 407 | and you write the resource value the same as the symbol you would use |
| 408 | for the font attribute value. |
| 409 | @item @var{face}.attributeBold |
| 410 | Bold flag for face @var{face}---instead of @code{attributeWeight}. Use @samp{on} or @samp{true} for |
| 411 | yes. |
| 412 | @item @var{face}.attributeItalic |
| 413 | Italic flag for face @var{face}---instead of @code{attributeSlant}. |
| 414 | @end table |
| 415 | |
| 416 | @node Lucid Resources |
| 417 | @appendixsec Lucid Menu X Resources |
| 418 | @cindex Menu X Resources (Lucid widgets) |
| 419 | @cindex Lucid Widget X Resources |
| 420 | |
| 421 | @ifnottex |
| 422 | If the Emacs installed at your site was built to use the X toolkit |
| 423 | with the Lucid menu widgets, then the menu bar is a separate widget and |
| 424 | has its own resources. The resource names contain @samp{pane.menubar} |
| 425 | (following, as always, the name of the Emacs invocation, or @samp{Emacs}, |
| 426 | which stands for all Emacs invocations). Specify them like this: |
| 427 | |
| 428 | @example |
| 429 | Emacs.pane.menubar.@var{resource}: @var{value} |
| 430 | @end example |
| 431 | |
| 432 | @noindent |
| 433 | For example, to specify the font @samp{8x16} for the menu-bar items, |
| 434 | write this: |
| 435 | @end ifnottex |
| 436 | @iftex |
| 437 | If the Emacs installed at your site was built to use the X toolkit |
| 438 | with the Lucid menu widgets, then the menu bar is a separate widget |
| 439 | and has its own resources. The resource specifications start with |
| 440 | @samp{Emacs.pane.menubar}---for instance, to specify the font |
| 441 | @samp{8x16} for the menu-bar items, write this: |
| 442 | @end iftex |
| 443 | |
| 444 | @example |
| 445 | Emacs.pane.menubar.font: 8x16 |
| 446 | @end example |
| 447 | |
| 448 | @noindent |
| 449 | Resources for @emph{non-menubar} toolkit pop-up menus have |
| 450 | @samp{menu*} instead of @samp{pane.menubar}. For example, to specify |
| 451 | the font @samp{8x16} for the pop-up menu items, write this: |
| 452 | |
| 453 | @example |
| 454 | Emacs.menu*.font: 8x16 |
| 455 | @end example |
| 456 | |
| 457 | @noindent |
| 458 | For dialog boxes, use @samp{dialog*}: |
| 459 | |
| 460 | @example |
| 461 | Emacs.dialog*.font: 8x16 |
| 462 | @end example |
| 463 | |
| 464 | @noindent |
| 465 | The Lucid menus can display multilingual text in your locale. For |
| 466 | more information about fontsets see the man page for |
| 467 | @code{XCreateFontSet}. To enable multilingual menu text you specify a |
| 468 | @code{fontSet} resource instead of the font resource. If both |
| 469 | @code{font} and @code{fontSet} resources are specified, the |
| 470 | @code{fontSet} resource is used. |
| 471 | |
| 472 | Thus, to specify @samp{-*-helvetica-medium-r-*--*-120-*-*-*-*-*-*,*} |
| 473 | for both the popup and menu bar menus, write this: |
| 474 | |
| 475 | @example |
| 476 | Emacs*menu*fontSet: -*-helvetica-medium-r-*--*-120-*-*-*-*-*-*,* |
| 477 | @end example |
| 478 | |
| 479 | @noindent |
| 480 | The @samp{*menu*} as a wildcard matches @samp{pane.menubar} and |
| 481 | @samp{menu@dots{}}. |
| 482 | |
| 483 | Experience shows that on some systems you may need to add |
| 484 | @samp{shell.}@: before the @samp{pane.menubar} or @samp{menu*}. On |
| 485 | some other systems, you must not add @samp{shell.}. The generic wildcard |
| 486 | approach should work on both kinds of systems. |
| 487 | |
| 488 | Here is a list of the specific resources for menu bars and pop-up menus: |
| 489 | |
| 490 | @table @code |
| 491 | @item font |
| 492 | Font for menu item text. |
| 493 | @item fontSet |
| 494 | Fontset for menu item text. |
| 495 | @item foreground |
| 496 | Color of the foreground. |
| 497 | @item background |
| 498 | Color of the background. |
| 499 | @item buttonForeground |
| 500 | In the menu bar, the color of the foreground for a selected item. |
| 501 | @ifnottex |
| 502 | @item horizontalSpacing |
| 503 | Horizontal spacing in pixels between items. Default is 3. |
| 504 | @item verticalSpacing |
| 505 | Vertical spacing in pixels between items. Default is 2. |
| 506 | @item arrowSpacing |
| 507 | Horizontal spacing between the arrow (which indicates a submenu) and |
| 508 | the associated text. Default is 10. |
| 509 | @item shadowThickness |
| 510 | Thickness of shadow line around the widget. Default is 1. |
| 511 | |
| 512 | Also determines the thickness of shadow lines around other objects, |
| 513 | for instance 3D buttons and arrows. If you have the impression that |
| 514 | the arrows in the menus do not stand out clearly enough or that the |
| 515 | difference between ``in'' and ``out'' buttons is difficult to see, set |
| 516 | this to 2. If you have no problems with visibility, the default |
| 517 | probably looks better. The background color may also have some effect |
| 518 | on the contrast. |
| 519 | @end ifnottex |
| 520 | @item margin |
| 521 | The margin of the menu bar, in characters. Default is 1. |
| 522 | @end table |
| 523 | |
| 524 | @ifnottex |
| 525 | @node LessTif Resources |
| 526 | @appendixsec LessTif Menu X Resources |
| 527 | @cindex Menu X Resources (LessTif widgets) |
| 528 | @cindex LessTif Widget X Resources |
| 529 | |
| 530 | If the Emacs installed at your site was built to use the X toolkit |
| 531 | with the LessTif or Motif widgets, then the menu bar, the dialog |
| 532 | boxes, the pop-up menus, and the file-selection box are separate |
| 533 | widgets and have their own resources. |
| 534 | |
| 535 | The resource names for the menu bar contain @samp{pane.menubar} |
| 536 | (following, as always, the name of the Emacs invocation, or |
| 537 | @samp{Emacs}, which stands for all Emacs invocations). Specify them |
| 538 | like this: |
| 539 | |
| 540 | @smallexample |
| 541 | Emacs.pane.menubar.@var{subwidget}.@var{resource}: @var{value} |
| 542 | @end smallexample |
| 543 | |
| 544 | Each individual string in the menu bar is a subwidget; the subwidget's |
| 545 | name is the same as the menu item string. For example, the word |
| 546 | @samp{File} in the menu bar is part of a subwidget named |
| 547 | @samp{emacs.pane.menubar.File}. Most likely, you want to specify the |
| 548 | same resources for the whole menu bar. To do this, use @samp{*} instead |
| 549 | of a specific subwidget name. For example, to specify the font |
| 550 | @samp{8x16} for the menu-bar items, write this: |
| 551 | |
| 552 | @smallexample |
| 553 | Emacs.pane.menubar.*.fontList: 8x16 |
| 554 | @end smallexample |
| 555 | |
| 556 | @noindent |
| 557 | This also specifies the resource value for submenus. |
| 558 | |
| 559 | Each item in a submenu in the menu bar also has its own name for X |
| 560 | resources; for example, the @samp{File} submenu has an item named |
| 561 | @samp{Save (current buffer)}. A resource specification for a submenu |
| 562 | item looks like this: |
| 563 | |
| 564 | @smallexample |
| 565 | Emacs.pane.menubar.popup_*.@var{menu}.@var{item}.@var{resource}: @var{value} |
| 566 | @end smallexample |
| 567 | |
| 568 | @noindent |
| 569 | For example, here's how to specify the font for the @samp{Save (current |
| 570 | buffer)} item: |
| 571 | |
| 572 | @smallexample |
| 573 | Emacs.pane.menubar.popup_*.File.Save (current buffer).fontList: 8x16 |
| 574 | @end smallexample |
| 575 | |
| 576 | @noindent |
| 577 | For an item in a second-level submenu, such as @samp{Complete Word} |
| 578 | under @samp{Spell Checking} under @samp{Tools}, the resource fits this |
| 579 | template: |
| 580 | |
| 581 | @smallexample |
| 582 | Emacs.pane.menubar.popup_*.popup_*.@var{menu}.@var{resource}: @var{value} |
| 583 | @end smallexample |
| 584 | |
| 585 | @noindent |
| 586 | For example, |
| 587 | |
| 588 | @smallexample |
| 589 | Emacs.pane.menubar.popup_*.popup_*.Spell Checking.Complete Word: @var{value} |
| 590 | @end smallexample |
| 591 | |
| 592 | @noindent |
| 593 | (This should be one long line.) |
| 594 | |
| 595 | It's impossible to specify a resource for all the menu-bar items |
| 596 | without also specifying it for the submenus as well. So if you want the |
| 597 | submenu items to look different from the menu bar itself, you must ask |
| 598 | for that in two steps. First, specify the resource for all of them; |
| 599 | then, override the value for submenus alone. Here is an example: |
| 600 | |
| 601 | @smallexample |
| 602 | Emacs.pane.menubar.*.fontList: 8x16 |
| 603 | Emacs.pane.menubar.popup_*.fontList: 8x16 |
| 604 | @end smallexample |
| 605 | |
| 606 | @noindent |
| 607 | For LessTif pop-up menus, use @samp{menu*} instead of |
| 608 | @samp{pane.menubar}. For example, to specify the font @samp{8x16} for |
| 609 | the pop-up menu items, write this: |
| 610 | |
| 611 | @smallexample |
| 612 | Emacs.menu*.fontList: 8x16 |
| 613 | @end smallexample |
| 614 | |
| 615 | @noindent |
| 616 | For LessTif dialog boxes, use @samp{dialog} instead of @samp{menu}: |
| 617 | |
| 618 | @example |
| 619 | Emacs.dialog*.fontList: 8x16 |
| 620 | Emacs.dialog*.foreground: hotpink |
| 621 | @end example |
| 622 | |
| 623 | To specify resources for the LessTif file-selection box, use |
| 624 | @samp{fsb*}, like this: |
| 625 | |
| 626 | @example |
| 627 | Emacs.fsb*.fontList: 8x16 |
| 628 | @end example |
| 629 | |
| 630 | @iftex |
| 631 | @medbreak |
| 632 | @end iftex |
| 633 | Here is a list of the specific resources for LessTif menu bars and |
| 634 | pop-up menus: |
| 635 | |
| 636 | @table @code |
| 637 | @item armColor |
| 638 | The color to show in an armed button. |
| 639 | @item fontList |
| 640 | The font to use. |
| 641 | @item marginBottom |
| 642 | @itemx marginHeight |
| 643 | @itemx marginLeft |
| 644 | @itemx marginRight |
| 645 | @itemx marginTop |
| 646 | @itemx marginWidth |
| 647 | Amount of space to leave around the item, within the border. |
| 648 | @item borderWidth |
| 649 | The width of the border around the menu item, on all sides. |
| 650 | @item shadowThickness |
| 651 | The width of the border shadow. |
| 652 | @item bottomShadowColor |
| 653 | The color for the border shadow, on the bottom and the right. |
| 654 | @item topShadowColor |
| 655 | The color for the border shadow, on the top and the left. |
| 656 | @end table |
| 657 | @end ifnottex |
| 658 | |
| 659 | |
| 660 | @node GTK resources |
| 661 | @appendixsec GTK resources |
| 662 | @iftex |
| 663 | The most common way to customize the GTK widgets Emacs uses (menus, dialogs |
| 664 | tool bars and scroll bars) is by choosing an appropriate theme, for example |
| 665 | with the GNOME theme selector. You can also do Emacs specific customization |
| 666 | by inserting GTK style directives in the file @file{~/.emacs.d/gtkrc}. Some GTK |
| 667 | themes ignore customizations in @file{~/.emacs.d/gtkrc} so not everything |
| 668 | works with all themes. To customize Emacs font, background, faces, etc., use |
| 669 | the normal X resources (@pxref{Resources}). We will present some examples of |
| 670 | customizations here, but for a more detailed description, see the online manual |
| 671 | |
| 672 | The first example is just one line. It changes the font on all GTK widgets |
| 673 | to courier with size 12: |
| 674 | |
| 675 | @smallexample |
| 676 | gtk-font-name = "courier 12" |
| 677 | @end smallexample |
| 678 | |
| 679 | The thing to note is that the font name is not an X font name, like |
| 680 | -*-helvetica-medium-r-*--*-120-*-*-*-*-*-*, but a Pango font name. A Pango |
| 681 | font name is basically of the format "family style size", where the style |
| 682 | is optional as in the case above. A name with a style could be for example: |
| 683 | |
| 684 | @smallexample |
| 685 | gtk-font-name = "helvetica bold 10" |
| 686 | @end smallexample |
| 687 | |
| 688 | To customize widgets you first define a style and then apply the style to |
| 689 | the widgets. Here is an example that sets the font for menus, but not |
| 690 | for other widgets: |
| 691 | |
| 692 | @smallexample |
| 693 | # @r{Define the style @samp{menufont}.} |
| 694 | style "menufont" |
| 695 | @{ |
| 696 | font_name = "helvetica bold 14" # This is a Pango font name |
| 697 | @} |
| 698 | |
| 699 | # @r{Specify that widget type @samp{*emacs-menuitem*} uses @samp{menufont}.} |
| 700 | widget "*emacs-menuitem*" style "menufont" |
| 701 | @end smallexample |
| 702 | |
| 703 | The widget name in this example contains wildcards, so the style will be |
| 704 | applied to all widgets that match "*emacs-menuitem*". The widgets are |
| 705 | named by the way they are contained, from the outer widget to the inner widget. |
| 706 | So to apply the style "my_style" (not shown) with the full, absolute name, for |
| 707 | the menubar and the scroll bar in Emacs we use: |
| 708 | |
| 709 | @smallexample |
| 710 | widget "Emacs.pane.menubar" style "my_style" |
| 711 | widget "Emacs.pane.emacs.verticalScrollBar" style "my_style" |
| 712 | @end smallexample |
| 713 | |
| 714 | But to avoid having to type it all, wildcards are often used. @samp{*} |
| 715 | matches zero or more characters and @samp{?} matches one character. So "*" |
| 716 | matches all widgets. |
| 717 | |
| 718 | Each widget has a class (for example GtkMenuItem) and a name (emacs-menuitem). |
| 719 | You can assign styles by name or by class. In this example we have used the |
| 720 | class: |
| 721 | |
| 722 | @smallexample |
| 723 | style "menufont" |
| 724 | @{ |
| 725 | font_name = "helvetica bold 14" |
| 726 | @} |
| 727 | |
| 728 | widget_class "*GtkMenuBar" style "menufont" |
| 729 | @end smallexample |
| 730 | |
| 731 | @noindent |
| 732 | The names and classes for the GTK widgets Emacs uses are: |
| 733 | |
| 734 | @multitable {@code{verticalScrollbar plus}} {@code{GtkFileSelection} and some} |
| 735 | @item @code{emacs-filedialog} |
| 736 | @tab @code{GtkFileSelection} |
| 737 | @item @code{emacs-dialog} |
| 738 | @tab @code{GtkDialog} |
| 739 | @item @code{Emacs} |
| 740 | @tab @code{GtkWindow} |
| 741 | @item @code{pane} |
| 742 | @tab @code{GtkVHbox} |
| 743 | @item @code{emacs} |
| 744 | @tab @code{GtkFixed} |
| 745 | @item @code{verticalScrollBar} |
| 746 | @tab @code{GtkVScrollbar} |
| 747 | @item @code{emacs-toolbar} |
| 748 | @tab @code{GtkToolbar} |
| 749 | @item @code{menubar} |
| 750 | @tab @code{GtkMenuBar} |
| 751 | @item @code{emacs-menuitem} |
| 752 | @tab anything in menus |
| 753 | @end multitable |
| 754 | |
| 755 | GTK absolute names are quite strange when it comes to menus |
| 756 | and dialogs. The names do not start with @samp{Emacs}, as they are |
| 757 | free-standing windows and not contained (in the GTK sense) by the |
| 758 | Emacs GtkWindow. To customize the dialogs and menus, use wildcards like this: |
| 759 | |
| 760 | @smallexample |
| 761 | widget "*emacs-dialog*" style "my_dialog_style" |
| 762 | widget "*emacs-filedialog* style "my_file_style" |
| 763 | widget "*emacs-menuitem* style "my_menu_style" |
| 764 | @end smallexample |
| 765 | |
| 766 | If you specify a customization in @file{~/.emacs.d/gtkrc}, then it |
| 767 | automatically applies only to Emacs, since other programs don't read |
| 768 | that file. For example, the drop down menu in the file dialog can not |
| 769 | be customized by any absolute widget name, only by an absolute class |
| 770 | name. This is because the widgets in the drop down menu do not |
| 771 | have names and the menu is not contained in the Emacs GtkWindow. To |
| 772 | have all menus in Emacs look the same, use this in |
| 773 | @file{~/.emacs.d/gtkrc}: |
| 774 | |
| 775 | @smallexample |
| 776 | widget_class "*Menu*" style "my_menu_style" |
| 777 | @end smallexample |
| 778 | |
| 779 | Here is a more elaborate example, showing how to change the parts of |
| 780 | the scroll bar: |
| 781 | |
| 782 | @smallexample |
| 783 | style "scroll" |
| 784 | @{ |
| 785 | fg[NORMAL] = "red"@ @ @ @ @ # @r{The arrow color.} |
| 786 | bg[NORMAL] = "yellow"@ @ # @r{The thumb and background around the arrow.} |
| 787 | bg[ACTIVE] = "blue"@ @ @ @ # @r{The trough color.} |
| 788 | bg[PRELIGHT] = "white"@ # @r{The thumb color when the mouse is over it.} |
| 789 | @} |
| 790 | |
| 791 | widget "*verticalScrollBar*" style "scroll" |
| 792 | @end smallexample |
| 793 | @end iftex |
| 794 | |
| 795 | @ifnottex |
| 796 | @cindex GTK resources and customization |
| 797 | @cindex resource files for GTK |
| 798 | @cindex @file{~/.gtkrc-2.0} file |
| 799 | @cindex @file{~/.emacs.d/gtkrc} file |
| 800 | |
| 801 | If Emacs was built to use the GTK widget set, then the menu bar, tool bar, |
| 802 | scroll bar and the dialogs are customized with the standard GTK |
| 803 | customization file, @file{~/.gtkrc-2.0}, or with the Emacs specific |
| 804 | file @file{~/.emacs.d/gtkrc}. We recommend that you use |
| 805 | @file{~/.emacs.d/gtkrc} for customizations, since @file{~/.gtkrc-2.0} |
| 806 | seems to be ignored when running GConf with GNOME. These files apply |
| 807 | only to GTK widget features. To customize Emacs font, background, |
| 808 | faces, etc., use the normal X resources (@pxref{Resources}). |
| 809 | |
| 810 | Some GTK themes override these mechanisms, which means that using |
| 811 | these mechanisms will not work to customize them. |
| 812 | |
| 813 | In these files you first define a style and say what it means; then |
| 814 | you specify to apply the style to various widget types (@pxref{GTK |
| 815 | widget names}). Here is an example of how to change the font for |
| 816 | Emacs menus: |
| 817 | |
| 818 | @smallexample |
| 819 | # @r{Define the style @samp{menufont}.} |
| 820 | style "menufont" |
| 821 | @{ |
| 822 | font_name = "helvetica bold 14" # This is a Pango font name |
| 823 | @} |
| 824 | |
| 825 | # @r{Specify that widget type @samp{*emacs-menuitem*} uses @samp{menufont}.} |
| 826 | widget "*emacs-menuitem*" style "menufont" |
| 827 | @end smallexample |
| 828 | |
| 829 | Here is a more elaborate example, showing how to change the parts of |
| 830 | the scroll bar: |
| 831 | |
| 832 | @smallexample |
| 833 | style "scroll" |
| 834 | @{ |
| 835 | fg[NORMAL] = "red"@ @ @ @ @ # @r{The arrow color.} |
| 836 | bg[NORMAL] = "yellow"@ @ # @r{The thumb and background around the arrow.} |
| 837 | bg[ACTIVE] = "blue"@ @ @ @ # @r{The trough color.} |
| 838 | bg[PRELIGHT] = "white"@ # @r{The thumb color when the mouse is over it.} |
| 839 | @} |
| 840 | |
| 841 | widget "*verticalScrollBar*" style "scroll" |
| 842 | @end smallexample |
| 843 | |
| 844 | There are also parameters that affect GTK as a whole. For example, |
| 845 | the property @code{gtk-font-name} sets the default font for GTK. You |
| 846 | must use Pango font names (@pxref{GTK styles}). A GTK resources file |
| 847 | that just sets a default font looks like this: |
| 848 | |
| 849 | @smallexample |
| 850 | gtk-font-name = "courier 12" |
| 851 | @end smallexample |
| 852 | |
| 853 | The GTK resources file is fully described in the GTK API document. |
| 854 | This can be found in |
| 855 | @file{@var{prefix}/share/gtk-doc/html/gtk/gtk-resource-files.html}, |
| 856 | where @file{prefix} is the directory in which the GTK libraries were |
| 857 | installed (usually @file{/usr} or @file{/usr/local}). You can also |
| 858 | find the document online, at |
| 859 | @uref{http://developer.gnome.org/doc/API/2.0/gtk/gtk-Resource-Files.html}. |
| 860 | |
| 861 | @menu |
| 862 | * GTK widget names:: How widgets in GTK are named in general. |
| 863 | * GTK Names in Emacs:: GTK widget names in Emacs. |
| 864 | * GTK styles:: What can be customized in a GTK widget. |
| 865 | @end menu |
| 866 | |
| 867 | @node GTK widget names |
| 868 | @appendixsubsec GTK widget names |
| 869 | @cindex GTK widget names |
| 870 | |
| 871 | A GTK widget is specified by its @dfn{widget class} and |
| 872 | @dfn{widget name}. The widget class is the type of the widget: for |
| 873 | example, @code{GtkMenuBar}. The widget name is the name given to a |
| 874 | specific widget. A widget always has a class, but need not have a |
| 875 | name. |
| 876 | |
| 877 | @dfn{Absolute names} are sequences of widget names or widget |
| 878 | classes, corresponding to hierarchies of widgets embedded within |
| 879 | other widgets. For example, if a @code{GtkWindow} named @code{top} |
| 880 | contains a @code{GtkVBox} named @code{box}, which in turn contains |
| 881 | a @code{GtkMenuBar} called @code{menubar}, the absolute class name |
| 882 | of the menu-bar widget is @code{GtkWindow.GtkVBox.GtkMenuBar}, and |
| 883 | its absolute widget name is @code{top.box.menubar}. |
| 884 | |
| 885 | When assigning a style to a widget, you can use the absolute class |
| 886 | name or the absolute widget name. |
| 887 | |
| 888 | There are two commands to specify changes for widgets: |
| 889 | |
| 890 | @table @asis |
| 891 | @item @code{widget_class} |
| 892 | specifies a style for widgets based on the absolute class name. |
| 893 | |
| 894 | @item @code{widget} |
| 895 | specifies a style for widgets based on the absolute class name, |
| 896 | or just the class. |
| 897 | @end table |
| 898 | |
| 899 | @noindent |
| 900 | You must specify the class and the style in double-quotes, and put |
| 901 | these commands at the top level in the GTK customization file, like |
| 902 | this: |
| 903 | |
| 904 | @smallexample |
| 905 | style "menufont" |
| 906 | @{ |
| 907 | font_name = "helvetica bold 14" |
| 908 | @} |
| 909 | |
| 910 | widget "top.box.menubar" style "menufont" |
| 911 | widget_class "GtkWindow.GtkVBox.GtkMenuBar" style "menufont" |
| 912 | @end smallexample |
| 913 | |
| 914 | Matching of absolute names uses shell wildcard syntax: @samp{*} |
| 915 | matches zero or more characters and @samp{?} matches one character. |
| 916 | This example assigns @code{base_style} to all widgets: |
| 917 | |
| 918 | @smallexample |
| 919 | widget "*" style "base_style" |
| 920 | @end smallexample |
| 921 | |
| 922 | Given the absolute class name @code{GtkWindow.GtkVBox.GtkMenuBar} |
| 923 | and the corresponding absolute widget name @code{top.box.menubar}, all |
| 924 | these examples specify @code{my_style} for the menu bar: |
| 925 | |
| 926 | @smallexample |
| 927 | widget_class "GtkWindow.GtkVBox.GtkMenuBar" style "my_style" |
| 928 | widget_class "GtkWindow.*.GtkMenuBar" style "my_style" |
| 929 | widget_class "*GtkMenuBar" style "my_style" |
| 930 | widget "top.box.menubar" style "my_style" |
| 931 | widget "*box*menubar" style "my_style" |
| 932 | widget "*menubar" style "my_style" |
| 933 | widget "*menu*" style "my_style" |
| 934 | @end smallexample |
| 935 | |
| 936 | @node GTK Names in Emacs |
| 937 | @appendixsubsec GTK Widget Names in Emacs |
| 938 | @cindex GTK widget names |
| 939 | @cindex GTK widget classes |
| 940 | |
| 941 | In Emacs, the top level widget for a frame is a @code{GtkWindow} |
| 942 | that contains a @code{GtkVBox}. The @code{GtkVBox} contains the |
| 943 | @code{GtkMenuBar} and a @code{GtkFixed} widget. The vertical scroll |
| 944 | bars, @code{GtkVScrollbar}, are contained in the @code{GtkFixed} |
| 945 | widget. The text you write in Emacs is drawn in the @code{GtkFixed} |
| 946 | widget. |
| 947 | |
| 948 | Dialogs in Emacs are @code{GtkDialog} widgets. The file dialog is a |
| 949 | @code{GtkFileSelection} widget. |
| 950 | |
| 951 | @noindent |
| 952 | To set a style for the menu bar using the absolute class name, use: |
| 953 | |
| 954 | @smallexample |
| 955 | widget_class "GtkWindow.GtkVBox.GtkMenuBar" style "my_style" |
| 956 | @end smallexample |
| 957 | |
| 958 | @noindent |
| 959 | For the scroll bar, the absolute class name is: |
| 960 | |
| 961 | @smallexample |
| 962 | widget_class |
| 963 | "GtkWindow.GtkVBox.GtkFixed.GtkVScrollbar" |
| 964 | style "my_style" |
| 965 | @end smallexample |
| 966 | |
| 967 | @noindent |
| 968 | The names for the emacs widgets, and their classes, are: |
| 969 | |
| 970 | @multitable {@code{verticalScrollbar plus}} {@code{GtkFileSelection} and some} |
| 971 | @item @code{emacs-filedialog} |
| 972 | @tab @code{GtkFileSelection} |
| 973 | @item @code{emacs-dialog} |
| 974 | @tab @code{GtkDialog} |
| 975 | @item @code{Emacs} |
| 976 | @tab @code{GtkWindow} |
| 977 | @item @code{pane} |
| 978 | @tab @code{GtkVHbox} |
| 979 | @item @code{emacs} |
| 980 | @tab @code{GtkFixed} |
| 981 | @item @code{verticalScrollBar} |
| 982 | @tab @code{GtkVScrollbar} |
| 983 | @item @code{emacs-toolbar} |
| 984 | @tab @code{GtkToolbar} |
| 985 | @item @code{menubar} |
| 986 | @tab @code{GtkMenuBar} |
| 987 | @item @code{emacs-menuitem} |
| 988 | @tab anything in menus |
| 989 | @end multitable |
| 990 | |
| 991 | @noindent |
| 992 | Thus, for Emacs you can write the two examples above as: |
| 993 | |
| 994 | @smallexample |
| 995 | widget "Emacs.pane.menubar" style "my_style" |
| 996 | widget "Emacs.pane.emacs.verticalScrollBar" style "my_style" |
| 997 | @end smallexample |
| 998 | |
| 999 | GTK absolute names are quite strange when it comes to menus |
| 1000 | and dialogs. The names do not start with @samp{Emacs}, as they are |
| 1001 | free-standing windows and not contained (in the GTK sense) by the |
| 1002 | Emacs GtkWindow. To customize the dialogs and menus, use wildcards like this: |
| 1003 | |
| 1004 | @smallexample |
| 1005 | widget "*emacs-dialog*" style "my_dialog_style" |
| 1006 | widget "*emacs-filedialog* style "my_file_style" |
| 1007 | widget "*emacs-menuitem* style "my_menu_style" |
| 1008 | @end smallexample |
| 1009 | |
| 1010 | If you specify a customization in @file{~/.emacs.d/gtkrc}, then it |
| 1011 | automatically applies only to Emacs, since other programs don't read |
| 1012 | that file. For example, the drop down menu in the file dialog can not |
| 1013 | be customized by any absolute widget name, only by an absolute class |
| 1014 | name. This is because the widgets in the drop down menu do not |
| 1015 | have names and the menu is not contained in the Emacs GtkWindow. To |
| 1016 | have all menus in Emacs look the same, use this in |
| 1017 | @file{~/.emacs.d/gtkrc}: |
| 1018 | |
| 1019 | @smallexample |
| 1020 | widget_class "*Menu*" style "my_menu_style" |
| 1021 | @end smallexample |
| 1022 | |
| 1023 | @node GTK styles |
| 1024 | @appendixsubsec GTK styles |
| 1025 | @cindex GTK styles |
| 1026 | |
| 1027 | In a GTK style you specify the appearance widgets shall have. You |
| 1028 | can specify foreground and background color, background pixmap and |
| 1029 | font. The edit widget (where you edit the text) in Emacs is a GTK |
| 1030 | widget, but trying to specify a style for the edit widget will have no |
| 1031 | effect. This is so that Emacs compiled for GTK is compatible with |
| 1032 | Emacs compiled for other X toolkits. The settings for foreground, |
| 1033 | background and font for the edit widget is taken from the X resources; |
| 1034 | @pxref{Resources}. Here is an example of two style declarations, |
| 1035 | @samp{default} and @samp{ruler}: |
| 1036 | |
| 1037 | @smallexample |
| 1038 | pixmap_path "/usr/share/pixmaps:/usr/include/X11/pixmaps" |
| 1039 | |
| 1040 | style "default" |
| 1041 | @{ |
| 1042 | font_name = "helvetica 12" |
| 1043 | |
| 1044 | bg[NORMAL] = @{ 0.83, 0.80, 0.73 @} |
| 1045 | bg[SELECTED] = @{ 0.0, 0.55, 0.55 @} |
| 1046 | bg[INSENSITIVE] = @{ 0.77, 0.77, 0.66 @} |
| 1047 | bg[ACTIVE] = @{ 0.0, 0.55, 0.55 @} |
| 1048 | bg[PRELIGHT] = @{ 0.0, 0.55, 0.55 @} |
| 1049 | |
| 1050 | fg[NORMAL] = "black" |
| 1051 | fg[SELECTED] = @{ 0.9, 0.9, 0.9 @} |
| 1052 | fg[ACTIVE] = "black" |
| 1053 | fg[PRELIGHT] = @{ 0.9, 0.9, 0.9 @} |
| 1054 | |
| 1055 | base[INSENSITIVE] = "#777766" |
| 1056 | text[INSENSITIVE] = @{ 0.60, 0.65, 0.57 @} |
| 1057 | |
| 1058 | bg_pixmap[NORMAL] = "background.xpm" |
| 1059 | bg_pixmap[INSENSITIVE] = "background.xpm" |
| 1060 | bg_pixmap[ACTIVE] = "background.xpm" |
| 1061 | bg_pixmap[PRELIGHT] = "<none>" |
| 1062 | |
| 1063 | @} |
| 1064 | |
| 1065 | style "ruler" = "default" |
| 1066 | @{ |
| 1067 | font_name = "helvetica 8" |
| 1068 | @} |
| 1069 | |
| 1070 | @end smallexample |
| 1071 | |
| 1072 | The style @samp{ruler} inherits from @samp{default}. This way you can build |
| 1073 | on existing styles. The syntax for fonts and colors is described below. |
| 1074 | |
| 1075 | As this example shows, it is possible to specify several values for |
| 1076 | foreground and background depending on the widget's @dfn{state}. The |
| 1077 | possible states are: |
| 1078 | |
| 1079 | @table @code |
| 1080 | @item NORMAL |
| 1081 | This is the default state for widgets. |
| 1082 | @item ACTIVE |
| 1083 | This is the state for a widget that is ready to do something. It is |
| 1084 | also for the trough of a scroll bar, i.e. @code{bg[ACTIVE] = "red"} |
| 1085 | sets the scroll bar trough to red. Buttons that have been pressed but |
| 1086 | not released yet (``armed'') are in this state. |
| 1087 | @item PRELIGHT |
| 1088 | This is the state for a widget that can be manipulated, when the mouse |
| 1089 | pointer is over it---for example when the mouse is over the thumb in |
| 1090 | the scroll bar or over a menu item. When the mouse is over a button |
| 1091 | that is not pressed, the button is in this state. |
| 1092 | @item SELECTED |
| 1093 | This is the state for data that has been selected by the user. It can |
| 1094 | be selected text or items selected in a list. This state is not used |
| 1095 | in Emacs. |
| 1096 | @item INSENSITIVE |
| 1097 | This is the state for widgets that are visible, but they can not be |
| 1098 | manipulated in the usual way---for example, buttons that can't be |
| 1099 | pressed, and disabled menu items. To display disabled menu items in |
| 1100 | yellow, use @code{fg[INSENSITIVE] = "yellow"}. |
| 1101 | @end table |
| 1102 | |
| 1103 | Here are the things that can go in a style declaration: |
| 1104 | |
| 1105 | @table @code |
| 1106 | @item bg[@var{state}] = @var{color} |
| 1107 | This specifies the background color for the widget. Note that |
| 1108 | editable text doesn't use @code{bg}; it uses @code{base} instead. |
| 1109 | |
| 1110 | @item base[@var{state}] = @var{color} |
| 1111 | This specifies the background color for editable text. In Emacs, this |
| 1112 | color is used for the background of the text fields in the file |
| 1113 | dialog. |
| 1114 | |
| 1115 | @item bg_pixmap[@var{state}] = "@var{pixmap}" |
| 1116 | This specifies an image background (instead of a background color). |
| 1117 | @var{pixmap} should be the image file name. GTK can use a number of |
| 1118 | image file formats, including XPM, XBM, GIF, JPEG and PNG. If you |
| 1119 | want a widget to use the same image as its parent, use |
| 1120 | @samp{<parent>}. If you don't want any image, use @samp{<none>}. |
| 1121 | @samp{<none>} is the way to cancel a background image inherited from a |
| 1122 | parent style. |
| 1123 | |
| 1124 | You can't specify the file by its absolute file name. GTK looks for |
| 1125 | the pixmap file in directories specified in @code{pixmap_path}. |
| 1126 | @code{pixmap_path} is a colon-separated list of directories within |
| 1127 | double quotes, specified at the top level in a @file{gtkrc} file |
| 1128 | (i.e. not inside a style definition; see example above): |
| 1129 | |
| 1130 | @smallexample |
| 1131 | pixmap_path "/usr/share/pixmaps:/usr/include/X11/pixmaps" |
| 1132 | @end smallexample |
| 1133 | |
| 1134 | @item fg[@var{state}] = @var{color} |
| 1135 | This specifies the foreground color for widgets to use. It is the |
| 1136 | color of text in menus and buttons, and the color for the arrows in |
| 1137 | the scroll bar. For editable text, use @code{text}. |
| 1138 | |
| 1139 | @item text[@var{state}] = @var{color} |
| 1140 | This is the color for editable text. In Emacs, this color is used for the |
| 1141 | text fields in the file dialog. |
| 1142 | |
| 1143 | @item font_name = "@var{font}" |
| 1144 | This specifies the font for text in the widget. @var{font} is a |
| 1145 | Pango font name, for example @samp{Sans Italic 10}, @samp{Helvetica |
| 1146 | Bold 12}, @samp{Courier 14}, @samp{Times 18}. See below for exact |
| 1147 | syntax. The names are case insensitive. |
| 1148 | @end table |
| 1149 | |
| 1150 | There are three ways to specify a color: by name, in hexadecimal |
| 1151 | form, and with an RGB triplet. |
| 1152 | |
| 1153 | @noindent |
| 1154 | A color name is written within double quotes, for example @code{"red"}. |
| 1155 | |
| 1156 | @noindent |
| 1157 | Hexadecimal form is the same as in X: |
| 1158 | @code{#@var{rrrr}@var{gggg}@var{bbbb}}, where all three color specs |
| 1159 | must have the same number of hex digits (1, 2, 3 or 4). |
| 1160 | |
| 1161 | @noindent |
| 1162 | An RGB triplet looks like @code{@{ @var{r}, @var{g}, @var{b} @}}, |
| 1163 | where @var{r}, @var{g} and @var{b} are either integers in the range |
| 1164 | 0-65535 or floats in the range 0.0-1.0. |
| 1165 | |
| 1166 | Pango font names have the form ``@var{family-list} @var{style-options} |
| 1167 | @var{size}.'' |
| 1168 | @cindex Pango font name |
| 1169 | @noindent |
| 1170 | @var{family-list} is a comma separated list of font families optionally |
| 1171 | terminated by a comma. This way you can specify several families and the |
| 1172 | first one found will be used. @var{family} corresponds to the second part in |
| 1173 | an X font name, for example in |
| 1174 | |
| 1175 | @smallexample |
| 1176 | -adobe-times-medium-r-normal--12-120-75-75-p-64-iso10646-1 |
| 1177 | @end smallexample |
| 1178 | |
| 1179 | @noindent |
| 1180 | the family name is @samp{times}. |
| 1181 | |
| 1182 | @noindent |
| 1183 | @var{style-options} is a whitespace separated list of words where each word |
| 1184 | is a style, variant, weight, or stretch. The default value for all of |
| 1185 | these is @code{normal}. |
| 1186 | |
| 1187 | @noindent |
| 1188 | A `style' corresponds to the fourth part of an X font name. In X font |
| 1189 | names it is the character @samp{r}, @samp{i} or @samp{o}; in Pango |
| 1190 | font names the corresponding values are @code{normal}, @code{italic}, |
| 1191 | or @code{oblique}. |
| 1192 | |
| 1193 | @noindent |
| 1194 | A `variant' is either @code{normal} or @code{small-caps}. |
| 1195 | Small caps is a font with the lower case characters replaced by |
| 1196 | smaller variants of the capital characters. |
| 1197 | |
| 1198 | @noindent |
| 1199 | Weight describes the ``boldness'' of a font. It corresponds to the third |
| 1200 | part of an X font name. It is one of @code{ultra-light}, @code{light}, |
| 1201 | @code{normal}, @code{bold}, @code{ultra-bold}, or @code{heavy}. |
| 1202 | |
| 1203 | @noindent |
| 1204 | Stretch gives the width of the font relative to other designs within a |
| 1205 | family. It corresponds to the fifth part of an X font name. It is one of |
| 1206 | @code{ultra-condensed}, @code{extra-condensed}, @code{condensed}, |
| 1207 | @code{semi-condensed}, @code{normal}, @code{semi-expanded}, |
| 1208 | @code{expanded}, @code{extra-expanded}, or @code{ultra-expanded}. |
| 1209 | |
| 1210 | @noindent |
| 1211 | @var{size} is a decimal number that describes the font size in points. |
| 1212 | @end ifnottex |
| 1213 | |
| 1214 | @ignore |
| 1215 | arch-tag: 9b6ff773-48b6-41f6-b2f9-f114b8bdd97f |
| 1216 | @end ignore |