CLIM 2 User Guide

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[This page intentionally left blank.] 26 CLIM 2.2 User Guide
Chapter 3 Drawing graphics in CLIM 3.1 Concepts of drawing graphics in CLIM CLIM offers a set of drawing functions that enable you to draw points, lines, polygons, rectangles, ellipses, circles, and text. You can affect the way the geometric objects are drawn by supplying drawing options to the drawing functions. The drawing options support clipping, transformation, line style, text style, ink, and other aspects of the graphic to be drawn (see the section 4.2 Using CLIM drawing options). In many cases, it is convenient to use with-drawing-options to surround several calls to drawing functions, each using the same options. You can override one or more drawing options in any given call by supplying keywords to the drawing functions themselves. This can also be more efficient, as passing drawing options to each drawing function can cons new short-lived objects; using with-drawing-options around several drawing functions will cons these objects only once. 3.1.1 The drawing plane When drawing graphics in CLIM, you imagine that they appear on a drawing plane. The drawing plane extends infinitely in four directions and has infinite resolution (no pixels). A line that you draw on the drawing plane is infinitely thin. The drawing plane provides an idealized version of the graphics you draw. The drawing plane has no material existence and cannot be viewed directly. Of course, you intend that the graphics should be visible to the user, and must be presented on a real display device. CLIM transfers the graphics from the drawing plane to the window via the rendering process. Because the window lives on hardware that has physical constraints, the rendering process is forced to compromise when it draws the graphics on the window. The actual visual appearance of the window is only an approximation of the idealized drawing plane. CLIM 2.2 User Guide 27
Page 1 and 2: CLIM 2 User Guide version 2.2 June,
Page 3 and 4: Contents 1 Introduction and notatio
Page 5 and 6: Dynamic colors 88 Layered colors 89
Page 7 and 8: 9.3.1 Initializing application fram
Page 9 and 10: Command processor gestures 308 17.1
Page 11 and 12: Chapter 1 Introduction and notation
Page 13 and 14: → symbol means ‘evaluates to’
Page 15 and 16: • Exhibits. Provide us with the s
Page 17 and 18: Chapter 2 Getting started with CLIM
Page 19 and 20: (display :application)) (:layouts (
Page 21 and 22: 2.2 Window-manager-specific informa
Page 23 and 24: Reinitializing resources This is ha
Page 25: Getting hyper and super keys Most k
Page 29 and 30: mation which informs CLIM how to ma
Page 31 and 32: draw-point* [Function] Arguments: m
Page 33 and 34: This function is the same as draw-p
Page 35 and 36: draw-ellipse* [Function] Arguments:
Page 37 and 38: This function is the same as draw-t
Page 39 and 40: ■ The pixels are copied as if wit
Page 41 and 42: draw-pixmap* [Function] Arguments:
Page 43 and 44: (clim:draw-rectangle* mv 0 0 90 90
Page 45 and 46: ■ The result of region-union alwa
Page 47 and 48: The classes that correspond to poly
Page 49 and 50: line-start-point* [Generic function
Page 51 and 52: 3.6.7 Bounding Rectangles in CLIM E
Page 53 and 54: For example, the size of a piece of
Page 55 and 56: ellipse-center-point Arguments: ell
Page 57 and 58: Chapter 4 The CLIM drawing environm
Page 59 and 60: medium-line-style Arguments: medium
Page 61 and 62: • a color • a dynamic color •
Page 63 and 64: The following readers are provided
Page 65 and 66: make-contrasting-dash-patterns Argu
Page 67 and 68: 4.4.2 CLIM transformation construct
Page 69 and 70: transformation-equal Arguments: tra
Page 71 and 72: (clim:make-translation-transformati
Page 73 and 74: with-scaling [Macro] Arguments: (me
Page 75 and 76: 4.4.5 Applying CLIM transformations
Page 77 and 78:
Chapter 5 Text styles in CLIM 5.1 C
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parse-text-style Arguments: text-st
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family One of :fix, :serif, :sans-s
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Chapter 6 Drawing in color in CLIM
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make-palette Arguments: port [Gener
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make-gray-color Arguments: luminanc
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(setf dynamic-color-color) Argument
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find-named-color Arguments: name pa
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Chapter 7 Drawing with designs in C
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+flipping-ink+ [Constant] ■ A fli
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make-stencil Arguments: array [Func
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Use make-opacity or make-stencil to
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■ Composes a design by using the
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Drawing in color Specify :ink +gree
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Chapter 8 Presentation types in CLI
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In the presence of a presentation t
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ecorded in the window's output hist
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sensitive If nil, no presentation i
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8.4.1 CLIM operators for accepting
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prompt-mode Can be :normal (which i
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8.5.2 Numeric presentation types in
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value-key A function that returns a
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sequence Arguments: element-type [P
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form [Presentation type] ■ The pr
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These are the definitions of the ap
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Test this by evaluating the followi
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Type the following at the prompt: s
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8.6.5 Examples of more complex pres
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inherit-from A form that evaluates
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apply-presentation-generic-function
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The present method can specialize o
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presentation-refined-position-test
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(define-presentation-method accept
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default for value key is second (th
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(unless (eql char #\space) (clim:un
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(clim:with-accept-help ((:subhelp "
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Presentation type float integer str
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+gadget-menu-view+ [Constant] ■ A
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are sensitive, so the user can poin
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tester Either a function or a list
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4. Translators from the current com
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from-type The presentation type of
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‘(com-hardcopy-file ,object ,dest
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name). Acceptable keyboard input is
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Keyboard gestures Most keyboard ges
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8.7.8 Events in CLIM An event is a
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pointer-button-release-event [Class
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The returned values are the same as
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Chapter 9 Defining application fram
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Some examples name-and-options is a
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make-application-frame [Function] A
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9.2.2 Basic pane construction Appli
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the :scroll-bars argument can be a
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For command-menu-pane, the default
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space-requirement-width Arguments:
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+fill+ [Constant] ■ This constant
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:drag-scroll If non-nil scrolling o
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- - - - commands demo explanation F
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(:pointer-documentation t) (:panes
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(defmethod clim:run-frame-top-level
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:display-function ’draw-display :
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destroy-frame Arguments: frame ■
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frame-current-panes Arguments: fram
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default-frame-top-level [Generic fu
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(setf frame-current-layout) Argumen
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Chapter 10 Commands in CLIM 10.1 In
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The automatically generated command
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(the default) to indicate that the
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command-name-from-symbol Arguments:
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The following functions are provide
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command-not-present [Condition] ■
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cell-align-x Specifies the horizont
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map-over-command-table-menu-items d
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10.5.4 CLIM's keystroke interaction
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(clim:with-command-table-keystrokes
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ead-frame-command Arguments: frame
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■ command-table may be either a c
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Chapter 11 Formatted output in CLIM
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multiple-columns-x-spacing Controls
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min-height is specified in the same
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as a function The function called w
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You should see this table: The tabl
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Formatting a table with irregular g
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• The root node or nodes. • A
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Thi produces the graph on the right
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arc-drawing-options contains keywor
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filling-output [Macro] Arguments: (
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GA> any nation so GA> conceived and
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define-border-type Arguments: shape
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Chapter 12 Hardcopy streams in CLIM
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Chapter 13 Menus and dialogs in CLI
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printer is specified, the visual re
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type The presentation type of the m
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If make-application-frame is called
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prompts "Age" and "Last Name". The
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accept-values-pane-displayer [Funct
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In this example we show a dialog th
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the :value property will be returne
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Chapter 14 Incremental redisplay in
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structure, whose components can cha
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(default display))) (defmethod test
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(defmethod node-object-name ((node
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(setf (node-superiors inferior-node
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Chapter 15 Manipulating the pointer
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stream-set-pointer-position Argumen
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x and y are the transformed x and y
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pointer-input-rectangle [Function]
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Chapter 16 Using gadgets in CLIM 16
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The armed callback and disarmed cal
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drag-callback Arguments: gadget cli
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should use the portable class provi
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A radio box might be created as fol
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:scroll-bars Possible values are ni
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■ The drag-callback callback is i
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with-output-as-gadget [Macro] Argum
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Chapter 17 The CLIM input editor 17
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You can use the function add-input-
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editing commands can modify the sta
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with-input-editor-typeout Arguments
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edraw-input-buffer Arguments: strea
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Chapter 18 Output recordingin CLIM
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invoke-with-new-output-record [Gene
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output-record-count Arguments: reco
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ecompute-extent-for-changed-child [
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standard-sequence-output-history [C
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Chapter 19 Streams and windows in C
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abort-gesture-event Arguments: abor
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cursor-focus Arguments: cursor [Gen
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stream-string-width Arguments: stre
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dotimes-noting-progress Arguments:
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with-end-of-line-action [Macro] Arg
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server-path is a list that specifie
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Chapter 20 The Silica windowing sub
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The input protocol Provides the eve
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map-sheet-position-to-parent Argume
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■ Some sheet classes support only
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medium [Class] ■ The protocol cla
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20.5.1 Associating a medium with a
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a mirrored sheet. A mirrored sheet
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20.7.2 Internal Interfaces for Nati
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Chapter 21 Index A abort-gesture (c
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C call-presentation-menu (function)
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default-view (pane option) 181 defi
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ellipse defined 53 ellipse (class)
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frame-pointer-documentation-output
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layered colors 88 layered-color (ge
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map-over-ports (generic function) 3
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output-record-count (generic functi
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presentation-object (generic functi
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eplay-output-record (generic functi
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stream-recording-p (generic functio
Page 379 and 380:
untransform-position (generic funct
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