'\" '\" iwidgets::canvasprintbox (c) 1995 Tako Schotanus '\" '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" '\" '\" The definitions below are for supplemental macros used in Tcl/Tk '\" manual entries. '\" '\" .HS name section [date [version]] '\" Replacement for .TH in other man pages. See below for valid '\" section names. '\" '\" .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. '\" '\" .VS '\" Begin vertical sidebar, for use in marking newly-changed parts '\" of man pages. '\" '\" .VE '\" End of vertical sidebar. '\" '\" .DS '\" Begin an indented unfilled display. '\" '\" .DE '\" End of indented unfilled display. '\" '\" @(#) man.macros 1.1 94/08/09 13:07:19 .\" '\" # Heading for Tcl/Tk man pages .de HS .ds ^3 \\0 .if !"\\$3"" .ds ^3 \\$3 .if '\\$2'cmds' .TH "\\$1" 1 "\\*(^3" "\\$4" "\\$5" .if '\\$2'lib' .TH "\\$1" 3 "\\*(^3" "\\$4" "\\$5" .if '\\$2'ncmds' .TH "\\$1" n "\\*(^3" "\\$4" "\\$5" .if '\\$2'tcl' .TH "\\$1" n "\\*(^3" Tcl "Tcl Built-In Commands" .if '\\$2'tk' .TH "\\$1" n "\\*(^3" Tk "Tk Commands" .if '\\$2'tclc' .TH "\\$1" 3 "\\*(^3" Tcl "Tcl Library Procedures" .if '\\$2'tkc' .TH "\\$1" 3 "\\*(^3" Tk "Tk Library Procedures" .if '\\$2'tclcmds' .TH "\\$1" 1 "\\*(^3" Tk "Tcl Applications" .if '\\$2'tkcmds' .TH "\\$1" 1 "\\*(^3" Tk "Tk Applications" .if '\\$2'iwid' .TH "\\$1" 1 "\\*(^3" Tk "[incr Widgets]" .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 .\} .ie !"\\$3"" \{\ .ta \\n()Au \\n()Bu \&\\$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 .. '\" # 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 .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 .. .HS iwidgets::canvasprintbox iwid .BS '\" Note: do not modify the .SH NAME line immediately below! .SH NAME iwidgets::canvasprintbox \- Create and manipulate a canvas print box widget .SH SYNOPSIS \fBiwidgets::canvasprintbox\fI \fIpathName \fR?\fIoptions\fR? .SH "INHERITANCE" itk::Widget <- iwidgets::Canvasprintbox .SH "STANDARD OPTIONS" .LP .nf .ta 4c 8c 12c \fB activeBackground background borderWidth cursor foreground highlightBackground highlightColor highlightThickness insertBackground insertBorderWidth insertOffTime insertOnTime insertWidth relief repeatDelay repeatInterval selectBackground selectBorderWidth selectForeground\fR .fi .LP See the "options" manual entry for details on the standard options. .SH "ASSOCIATED OPTIONS" .IP .LP .SH "WIDGET-SPECIFIC OPTIONS" .LP .nf Name: \fBfilename\fR Class: \fBFileName\fR Command-Line Switch: \fB-filename\fR .fi .IP The file to write the postscript output to (Only when output is set to "file"). If posterizing is turned on and \fBhpagecnt\fR and/or \fBvpagecnt\fR is more than 1, x.y is appended to the filename where x is the horizontal page number and y the vertical page number. .LP .nf Name: \fBhpagecnt\fR Class: \fBPageCnt\fR Command-Line Switch: \fB-hpagecnt\fR .fi .IP Is used in combination with \fBposterize\fR to determine over how many pages the output should be distributed. This attribute specifies how many pages should be used horizontaly. Any change to this attribute will automatically update the "stamp". Defaults to 1. .LP .nf Name: \fBorient\fR Class: \fBOrient\fR Command-Line Switch: \fB-orient\fR .fi .IP Determines the orientation of the output to the printer (or file). It can take the value "portrait" or "landscape" (default). Changes to this attribute will be reflected immediately in the "stamp". Defaults to "landscape" but will be changed automaticaly to the value deemed appropiate for the current canvas. Setting this attribute when the canvasprintbox is first constructed (instead of using the "configure" method) will turn off the auto adjustment of this attribute. .LP .nf Name: \fBoutput\fR Class: \fBOutput\fR Command-Line Switch: \fB-output\fR .fi .IP Specifies where the postscript output should go: to the printer or to a file. Can take on the values "printer" or "file". The corresponding entry-widget will reflect the contents of either the \fBprintcmd\fR attribute or the \fBfilename\fR attribute. Defaults to "printer". .LP .nf Name: \fBpageSize\fR Class: \fBPageSize\fR Command-Line Switch: \fB-pagesize\fR .fi .IP The pagesize the printer supports. Changes to this attribute will be reflected immediately in the "stamp". Defaults to "a4". .LP .nf Name: \fBposterize\fR Class: \fBPosterize\fR Command-Line Switch: \fB-posterize\fR .fi .IP Indicates if posterizing is turned on or not. Posterizing the output means that it is possible to distribute the output over more than one page. This way it is possible to print a canvas/region which is larger than the specified pagesize without stretching. If used in combination with stretching it can be used to "blow up" the contents of a canvas to as large as size as you want (See attributes: hpagecnt and vpagecnt). Any change to this attribute will automatically update the "stamp". Defaults to 0. .LP .nf Name: \fBprintCmd\fR Class: \fBPrintCmd\fR Command-Line Switch: \fB-printcmd\fR .fi .IP The command to execute when printing the postscript output. The command will get the postscript directed to its standard input (Only when output is set to "printer"). Defaults to "lpr". .LP .nf Name: \fBprintRegion\fR Class: \fBPrintRegion\fR Command-Line Switch: \fB-printregion\fR .fi .IP A list of four coordinates specifying which part of the canvas to print. An empty list means that the canvas' entire \fBscrollregion\fR should be printed. Any change to this attribute will automatically update the "stamp". Defaults to an empty list. .LP .nf Name: \fBstretch\fR Class: \fBStretch\fR Command-Line Switch: \fB-stretch\fR .fi .IP Determines if the output should be stretched to fill the page (as defined by the attribute pagesize) as large as possible. The aspect-ratio of the output will be retained and the output will never fall outside of the boundaries of the page. Defaults to 0 but will be changed automaticaly to the value deemed appropiate for the current canvas. Setting this attribute when the canvasprintbox is first constructed (instead of using the "configure" method) will turn off the auto adjustment of this attribute. .LP .nf Name: \fBvPageCnt\fR Class: \fBPageCnt\fR Command-Line Switch: \fB-vpagecnt\fR .fi .IP Is used in combination with "posterize" to determine over how many pages the output should be distributed. This attribute specifies how many pages should be used verticaly. Any change to this attribute will automatically update the "stamp". Defaults to 1. .LP .BE .SH DESCRIPTION .PP Implements a print box for printing the contents of a canvas widget to a printer or a file. It is possible to specify page orientation, the number of pages to print the image on and if the output should be stretched to fit the page. Options exist to control the appearance and actions of the widget. .SH "METHODS" .PP The \fBiwidgets::canvasprintbox\fR command creates a new Tcl command whose name is \fIpathName\fR. This command may be used to invoke various operations on the widget. It has the following general form: .DS C \fIpathName option \fR?\fIarg arg ...\fR? .DE \fIOption\fR and the \fIarg\fRs determine the exact behavior of the command. The following commands are possible for canvasprintbox widgets: .SH "WIDGET-SPECIFIC METHODS" .TP \fIpathName \fBcget\fR \fIoption\fR Returns the current value of the configuration option given by \fIoption\fR. \fIOption\fR may have any of the values accepted by the \fBiwidgets::canvasprintbox\fR command. .TP \fIpathName\fR \fBconfigure\fR ?\fIoption\fR? ?\fIvalue option value ...\fR? Query or modify the configuration options of the widget. If no \fIoption\fR is specified, returns a list describing all of the available options for \fIpathName\fR (see \fBTk_ConfigureInfo\fR for information on the format of this list). If \fIoption\fR is specified with no \fIvalue\fR, then the command returns a list describing the one named option (this list will be identical to the corresponding sublist of the value returned if no \fIoption\fR is specified). If one or more \fIoption\-value\fR pairs are specified, then the command modifies the given widget option(s) to have the given value(s); in this case the command returns an empty string. \fIOption\fR may have any of the values accepted by the \fBiwidgets::canvasprintbox\fR command. .TP \fIpathName\fR \fBgetoutput\fR Returns the value of the \fBprintercmd\fR or \fBfilename\fR option depending on the current setting of \fBoutput\fR. .TP \fIpathName\fR \fBprint\fR Perfrom the actual printing of the canvas using the current settings of all the attributes. Returns a boolean indicating wether the printing was successful or not. .TP \fIpathName\fR \fBrefresh\fR Retrieves the current value for all edit fields and updates the stamp accordingly. Is useful for Apply-buttons. .TP \fIpathName\fR \fBsetcanvas\fR \fIcanvas\fR This is used to set the \fIcanvas\fR that has to be printed. A stamp-sized copy will automatically be drawn to show how the output would look with the current settings. .TP \fIpathName \fBstop\fR Stops the drawing of the "stamp". I'm currently unable to detect when a Canvasprintbox gets destroyed or withdrawn. It's therefore advised that you perform a stop before you do something like that. .SH "COMPONENTS" .LP .nf Name: \fBprtflentry\fR Class: \fBEntry\fR .fi .IP The prtflentry component is the entry field for user input of the \fBfilename\fR or \fBprinter\fR command (depending on the value of \fBoutput\fR). .LP .nf Name: \fBhpcnt\fR Class: \fBEntry\fR .fi .IP The hpcnt component is the entry field for user input of the number of pages to use horizontaly when \fBposterize\fR is turned on. .fi .nf Name: \fBvpcnt\fR Class: \fBEntry\fR .fi .IP The vpcnt component is the entry field for user input of the number of pages to use verticaly when \fBposterize\fR is turned on. .fi .SH EXAMPLE .DS package require Iwidgets 4.0 iwidgets::canvasprintbox .fsb -orient landscape -stretch 1 pack .fsb -padx 10 -pady 10 -fill both -expand yes .DE .SH AUTHOR Tako Schotanus .LP Tako.Schotanus@bouw.tno.nl .SH KEYWORDS canvasprintbox, widget