CMSCOPE changed

author: Shashank 2017-05-29 12:40:26 +0530
committer: Shashank 2017-05-29 12:40:26 +0530
commit: 0345245e860375a32c9a437c4a9d9cae807134e9 (patch)
tree: ad51ecbfa7bcd3cc5f09834f1bb8c08feaa526a4 /usr/man/mann/ttk::intro.n
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+'\"
+'\" Copyright (c) 2004 Joe English
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\" 
+.\" The -*- nroff -*- definitions below are for supplemental macros used
+.\" in Tcl/Tk manual entries.
+.\"
+.\" .AP type name in/out ?indent?
+.\"	Start paragraph describing an argument to a library procedure.
+.\"	type is type of argument (int, etc.), in/out is either "in", "out",
+.\"	or "in/out" to describe whether procedure reads or modifies arg,
+.\"	and indent is equivalent to second arg of .IP (shouldn't ever be
+.\"	needed;  use .AS below instead)
+.\"
+.\" .AS ?type? ?name?
+.\"	Give maximum sizes of arguments for setting tab stops.  Type and
+.\"	name are examples of largest possible arguments that will be passed
+.\"	to .AP later.  If args are omitted, default tab stops are used.
+.\"
+.\" .BS
+.\"	Start box enclosure.  From here until next .BE, everything will be
+.\"	enclosed in one large box.
+.\"
+.\" .BE
+.\"	End of box enclosure.
+.\"
+.\" .CS
+.\"	Begin code excerpt.
+.\"
+.\" .CE
+.\"	End code excerpt.
+.\"
+.\" .VS ?version? ?br?
+.\"	Begin vertical sidebar, for use in marking newly-changed parts
+.\"	of man pages.  The first argument is ignored and used for recording
+.\"	the version when the .VS was added, so that the sidebars can be
+.\"	found and removed when they reach a certain age.  If another argument
+.\"	is present, then a line break is forced before starting the sidebar.
+.\"
+.\" .VE
+.\"	End of vertical sidebar.
+.\"
+.\" .DS
+.\"	Begin an indented unfilled display.
+.\"
+.\" .DE
+.\"	End of indented unfilled display.
+.\"
+.\" .SO ?manpage?
+.\"	Start of list of standard options for a Tk widget. The manpage
+.\"	argument defines where to look up the standard options; if
+.\"	omitted, defaults to "options". The options follow on successive
+.\"	lines, in three columns separated by tabs.
+.\"
+.\" .SE
+.\"	End of list of standard options for a Tk widget.
+.\"
+.\" .OP cmdName dbName dbClass
+.\"	Start of description of a specific option.  cmdName gives the
+.\"	option's name as specified in the class command, dbName gives
+.\"	the option's name in the option database, and dbClass gives
+.\"	the option's class in the option database.
+.\"
+.\" .UL arg1 arg2
+.\"	Print arg1 underlined, then print arg2 normally.
+.\"
+.\" .QW arg1 ?arg2?
+.\"	Print arg1 in quotes, then arg2 normally (for trailing punctuation).
+.\"
+.\" .PQ arg1 ?arg2?
+.\"	Print an open parenthesis, arg1 in quotes, then arg2 normally
+.\"	(for trailing punctuation) and then a closing parenthesis.
+.\"
+.\"	# Set up traps and other miscellaneous stuff for Tcl/Tk man pages.
+.if t .wh -1.3i ^B
+.nr ^l \n(.l
+.ad b
+.\"	# Start an argument description
+.de AP
+.ie !"\\$4"" .TP \\$4
+.el \{\
+.   ie !"\\$2"" .TP \\n()Cu
+.   el          .TP 15
+.\}
+.ta \\n()Au \\n()Bu
+.ie !"\\$3"" \{\
+\&\\$1 \\fI\\$2\\fP (\\$3)
+.\".b
+.\}
+.el \{\
+.br
+.ie !"\\$2"" \{\
+\&\\$1	\\fI\\$2\\fP
+.\}
+.el \{\
+\&\\fI\\$1\\fP
+.\}
+.\}
+..
+.\"	# define tabbing values for .AP
+.de AS
+.nr )A 10n
+.if !"\\$1"" .nr )A \\w'\\$1'u+3n
+.nr )B \\n()Au+15n
+.\"
+.if !"\\$2"" .nr )B \\w'\\$2'u+\\n()Au+3n
+.nr )C \\n()Bu+\\w'(in/out)'u+2n
+..
+.AS Tcl_Interp Tcl_CreateInterp in/out
+.\"	# BS - start boxed text
+.\"	# ^y = starting y location
+.\"	# ^b = 1
+.de BS
+.br
+.mk ^y
+.nr ^b 1u
+.if n .nf
+.if n .ti 0
+.if n \l'\\n(.lu\(ul'
+.if n .fi
+..
+.\"	# BE - end boxed text (draw box now)
+.de BE
+.nf
+.ti 0
+.mk ^t
+.ie n \l'\\n(^lu\(ul'
+.el \{\
+.\"	Draw four-sided box normally, but don't draw top of
+.\"	box if the box started on an earlier page.
+.ie !\\n(^b-1 \{\
+\h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
+.\}
+.el \}\
+\h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\l'|0u-1.5n\(ul'
+.\}
+.\}
+.fi
+.br
+.nr ^b 0
+..
+.\"	# VS - start vertical sidebar
+.\"	# ^Y = starting y location
+.\"	# ^v = 1 (for troff;  for nroff this doesn't matter)
+.de VS
+.if !"\\$2"" .br
+.mk ^Y
+.ie n 'mc \s12\(br\s0
+.el .nr ^v 1u
+..
+.\"	# VE - end of vertical sidebar
+.de VE
+.ie n 'mc
+.el \{\
+.ev 2
+.nf
+.ti 0
+.mk ^t
+\h'|\\n(^lu+3n'\L'|\\n(^Yu-1v\(bv'\v'\\n(^tu+1v-\\n(^Yu'\h'-|\\n(^lu+3n'
+.sp -1
+.fi
+.ev
+.\}
+.nr ^v 0
+..
+.\"	# Special macro to handle page bottom:  finish off current
+.\"	# box/sidebar if in box/sidebar mode, then invoked standard
+.\"	# page bottom macro.
+.de ^B
+.ev 2
+'ti 0
+'nf
+.mk ^t
+.if \\n(^b \{\
+.\"	Draw three-sided box if this is the box's first page,
+.\"	draw two sides but no top otherwise.
+.ie !\\n(^b-1 \h'-1.5n'\L'|\\n(^yu-1v'\l'\\n(^lu+3n\(ul'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
+.el \h'-1.5n'\L'|\\n(^yu-1v'\h'\\n(^lu+3n'\L'\\n(^tu+1v-\\n(^yu'\h'|0u'\c
+.\}
+.if \\n(^v \{\
+.nr ^x \\n(^tu+1v-\\n(^Yu
+\kx\h'-\\nxu'\h'|\\n(^lu+3n'\ky\L'-\\n(^xu'\v'\\n(^xu'\h'|0u'\c
+.\}
+.bp
+'fi
+.ev
+.if \\n(^b \{\
+.mk ^y
+.nr ^b 2
+.\}
+.if \\n(^v \{\
+.mk ^Y
+.\}
+..
+.\"	# DS - begin display
+.de DS
+.RS
+.nf
+.sp
+..
+.\"	# DE - end display
+.de DE
+.fi
+.RE
+.sp
+..
+.\"	# SO - start of list of standard options
+.de SO
+'ie '\\$1'' .ds So \\fBoptions\\fR
+'el .ds So \\fB\\$1\\fR
+.SH "STANDARD OPTIONS"
+.LP
+.nf
+.ta 5.5c 11c
+.ft B
+..
+.\"	# SE - end of list of standard options
+.de SE
+.fi
+.ft R
+.LP
+See the \\*(So manual entry for details on the standard options.
+..
+.\"	# OP - start of full description for a single option
+.de OP
+.LP
+.nf
+.ta 4c
+Command-Line Name:	\\fB\\$1\\fR
+Database Name:	\\fB\\$2\\fR
+Database Class:	\\fB\\$3\\fR
+.fi
+.IP
+..
+.\"	# CS - begin code excerpt
+.de CS
+.RS
+.nf
+.ta .25i .5i .75i 1i
+..
+.\"	# CE - end code excerpt
+.de CE
+.fi
+.RE
+..
+.\"	# UL - underline word
+.de UL
+\\$1\l'|0\(ul'\\$2
+..
+.\"	# QW - apply quotation marks to word
+.de QW
+.ie '\\*(lq'"' ``\\$1''\\$2
+.\"" fix emacs highlighting
+.el \\*(lq\\$1\\*(rq\\$2
+..
+.\"	# PQ - apply parens and quotation marks to word
+.de PQ
+.ie '\\*(lq'"' (``\\$1''\\$2)\\$3
+.\"" fix emacs highlighting
+.el (\\*(lq\\$1\\*(rq\\$2)\\$3
+..
+.\"	# QR - quoted range
+.de QR
+.ie '\\*(lq'"' ``\\$1''\\-``\\$2''\\$3
+.\"" fix emacs highlighting
+.el \\*(lq\\$1\\*(rq\\-\\*(lq\\$2\\*(rq\\$3
+..
+.\"	# MT - "empty" string
+.de MT
+.QW ""
+..
+.TH ttk::intro n 8.5 Tk "Tk Themed Widget"
+.BS
+.SH NAME
+ttk::intro \- Introduction to the Tk theme engine
+.BE
+.SH "OVERVIEW"
+.PP
+The Tk themed widget set is based on a revised and enhanced version
+of TIP #48 (http://tip.tcl.tk/48) specified style engine.
+The main concepts are described below.
+The basic idea is to separate, to the extent possible,
+the code implementing a widget's behavior from
+the code implementing its appearance.
+Widget class bindings are primarily responsible for
+maintaining the widget state and invoking callbacks;
+all aspects of the widget's appearance are controlled by the style of
+the widget (i.e. the style of the elements of the widget).
+.SH "THEMES"
+.PP
+A \fItheme\fR is a collection of elements and styles 
+that determine the look and feel of the widget set.
+Themes can be used to:
+.IP \(bu
+isolate platform differences (X11 vs. classic Windows vs. XP vs. Aqua ...)
+.IP \(bu
+adapt to display limitations (low-color, grayscale, monochrome, tiny screens)
+.IP \(bu
+accessibility (high contrast, large type)
+.IP \(bu
+application suite branding
+.IP \(bu
+blend in with the rest of the desktop (Gnome, KDE, Java)
+.IP \(bu
+and, of course: eye candy.
+.SH "ELEMENTS"
+.PP
+An \fIelement\fR displays an individual part of a widget.
+For example, a vertical scrollbar widget contains \fBuparrow\fR,
+\fBdownarrow\fR, \fBtrough\fR and \fBslider\fR elements.
+.PP
+Element names use a recursive dotted notation.
+For example, \fBuparrow\fR identifies a generic arrow element,
+and \fBScrollbar.uparrow\fR and \fBCombobox.uparrow\fR identify 
+widget-specific elements.
+When looking for an element, the style engine looks for
+the specific name first, and if an element of that name is
+not found it looks for generic elements by stripping off
+successive leading components of the element name.
+.PP
+Like widgets, elements have \fIoptions\fR which
+specify what to display and how to display it.
+For example, the \fBtext\fR element 
+(which displays a text string) has
+\fB\-text\fR, \fB\-font\fR, \fB\-foreground\fR, \fB\-background\fR, 
+\fB\-underline\fR, and \fB\-width\fR options.
+The value of an element option is taken from:
+.IP \(bu
+an option of the same name and type in the widget containing the element;
+.IP \(bu
+a dynamic setting specified by \fBstyle map\fR and the current state;
+.IP \(bu
+the default setting specified by \fBstyle configure\fR; or
+.IP \(bu
+the element's built-in default value for the option.
+.SH "LAYOUTS"
+.PP
+A \fIlayout\fR specifies which elements make up a widget
+and how they are arranged.
+The layout engine uses a simplified version of the \fBpack\fR
+algorithm: starting with an initial cavity equal to the size
+of the widget, elements are allocated a parcel within the cavity along
+the side specified by the \fB\-side\fR option,
+and placed within the parcel according to the \fB\-sticky\fR
+option.
+For example, the layout for a horizontal scrollbar is:
+.PP
+.CS
+ttk::\fBstyle layout\fR Horizontal.TScrollbar {
+    Scrollbar.trough \-children {
+	Scrollbar.leftarrow \-side left \-sticky w
+	Scrollbar.rightarrow \-side right \-sticky e
+	Scrollbar.thumb \-side left \-expand true \-sticky ew
+    }
+}
+.CE
+.PP
+By default, the layout for a widget is the same as its class name.
+Some widgets may override this (for example, the \fBttk::scrollbar\fR
+widget chooses different layouts based on the \fB\-orient\fR option).
+.SH "STATES"
+.PP
+In standard Tk, many widgets have a \fB\-state\fR option
+which (in most cases) is either \fBnormal\fR or \fBdisabled\fR.
+Some widgets support additional states, such
+as the \fBentry\fR widget which has a \fBreadonly\fR state
+and the various flavors of buttons which have \fBactive\fR state.
+.PP
+The themed Tk widgets generalizes this idea:
+every widget has a bitmap of independent state flags.
+Widget state flags include \fBactive\fR, \fBdisabled\fR,
+\fBpressed\fR, \fBfocus\fR, etc., 
+(see \fIttk::widget(n)\fR for the full list of state flags).
+.PP
+Instead of a \fB\-state\fR option, every widget now has 
+a \fBstate\fR widget command which is used to set or query
+the state.
+A \fIstate specification\fR is a list of symbolic state names
+indicating which bits are set, each optionally prefixed with an 
+exclamation point indicating that the bit is cleared instead.
+.PP
+For example, the class bindings for the \fBttk::button\fR
+widget are:
+.PP
+.CS
+bind TButton <Enter>		{ %W state active }
+bind TButton <Leave>		{ %W state !active }
+bind TButton <ButtonPress-1>	{ %W state pressed }
+bind TButton <Button1-Leave>	{ %W state !pressed }
+bind TButton <Button1-Enter>	{ %W state pressed }
+bind TButton <ButtonRelease-1>	\e
+    { %W instate {pressed} { %W state !pressed ; %W invoke } }
+.CE
+.PP
+This specifies that the widget becomes \fBactive\fR when
+the pointer enters the widget, and inactive when it leaves.
+Similarly it becomes \fBpressed\fR when the mouse button is pressed,
+and \fB!pressed\fR on the ButtonRelease event.
+In addition, the button unpresses if 
+pointer is dragged outside the widget while Button-1 is held down,
+and represses if it's dragged back in.
+Finally, when the mouse button is released, the widget's
+\fB\-command\fR is invoked, but only if the button is currently
+in the \fBpressed\fR state.
+(The actual bindings are a little more complicated than the above,
+but not by much).
+'\" Note to self: rewrite that paragraph.  It's horrible.
+.SH "STYLES"
+.PP
+Each widget is associated with a \fIstyle\fR, 
+which specifies values for element options.
+Style names use a recursive dotted notation like layouts and elements;
+by default, widgets use the class name to look up a style in the current theme.
+For example:
+.PP
+.CS
+ttk::\fBstyle configure\fR TButton \e
+	\-background #d9d9d9 \e
+	\-foreground black \e
+	\-relief raised \e
+	;
+.CE
+.PP
+Many elements are displayed differently depending on the widget state.  
+For example, buttons have a different background when they are active,
+a different foreground when disabled, and a different relief when pressed.
+The \fBstyle map\fR command specifies dynamic option settings
+for a particular style:
+.PP
+.CS
+ttk::\fBstyle map\fR TButton \e
+	\-background [list disabled #d9d9d9  active #ececec] \e
+	\-foreground [list disabled #a3a3a3] \e
+	\-relief [list {pressed !disabled} sunken] \e
+	;
+.CE
+.SH "SEE ALSO"
+ttk::widget(n), ttk::style(n)
+'\" Local Variables:
+'\" mode: nroff
+'\" End:
author	Shashank	2017-05-29 12:40:26 +0530
committer	Shashank	2017-05-29 12:40:26 +0530
commit	0345245e860375a32c9a437c4a9d9cae807134e9 (patch)
tree	ad51ecbfa7bcd3cc5f09834f1bb8c08feaa526a4 /usr/man/mann/ttk::intro.n
download	scilab_for_xcos_on_cloud-0345245e860375a32c9a437c4a9d9cae807134e9.tar.gz scilab_for_xcos_on_cloud-0345245e860375a32c9a437c4a9d9cae807134e9.tar.bz2 scilab_for_xcos_on_cloud-0345245e860375a32c9a437c4a9d9cae807134e9.zip