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diff --git a/doc/ttk_treeview.n b/doc/ttk_treeview.n new file mode 100644 index 0000000..c24b7f8 --- /dev/null +++ b/doc/ttk_treeview.n @@ -0,0 +1,401 @@ +'\" +'\" Copyright (c) 2004 Joe English +'\" +.so man.macros +.TH ttk_treeview n 8.5 Tk "Tk Themed Widget" +.SH NAME +ttk::treeview \- hierarchical multicolumn data display widget +.SH SYNOPSIS +\fBttk::treeview\fR \fIpathname \fR?\fIoptions\fR? +.SH "DESCRIPTION" +The treeview widget displays a hierarchical collection of items. +Each item has a textual label, an optional image, +and an optional list of data values. +The data values are displayed in successive columns after +the tree label. +.PP +The order in which data values are displayed may be controlled +by setting the \fB-displaycolumns\fR widget option. +The tree widget can also display column headings. +Columns may be accessed by number or by symbolic names +listed in the \fB-columns\fR widget option; +see \fBCOLUMN IDENTIFIERS\fR. +.PP +Each item is identified by a unique name. +The widget will generate item IDs if they are not supplied by the caller. +There is a distinguished root item, named \fB{}\fR. +The root item itself is not displayed; +its children appear at the top level of the hierarchy. +.PP +Each item also has a list of \fItags\fR, +which can be used to associate event bindings with individual items +and control the appearance of the item. +.\" .PP +.\" @@@HERE: describe selection, focus item +.PP +Treeview widgets support vertical scrolling with the +standard \fB-yscrollcommand\fR option and \fByview\fR widget command. +They probably ought to support horizontal scrolling as well. +.SO +\-class \-cursor \-takefocus \-style +\-yscrollcommand +.SE +.SH "WIDGET OPTIONS" +.OP \-columns columns Columns +A list of column identifiers, +specifying the number of columns and their names. +.\"X: This is a read-only option; it may only be set when the widget is created. +.OP \-displaycolumns displayColumns DisplayColumns +A list of column identifiers +(either symbolic names or integer indices) +specifying which data columns are displayed +and the order in which they appear. +.br +If empty (the default), all columns are shown in the order given. +.OP \-height height Height +Specifies the number of rows which should be visible. +Note: +the requested width is determined from the sum of the column widths. +.OP \-padding padding Padding +Specifies the internal padding for the widget. +The padding is a list of up to four length specifications; +see \fBTtk_GetPaddingFromObj()\fR for details. +.OP \-selectmode selectMode SelectMode +Controls how the built-in class bindings manage the selection. +One of \fBextended\fR, \fBbrowse\fR, or \fBnone\fR. +.br +If set to \fBextended\fR (the default), multiple items may be selected. +If \fBbrowse\fR, only a single item will be selected at a time. +If \fBnone\fR, the selection will not be changed. +.br +Note that application code and tag bindings can set the selection +however they wish, regardless of the value of \fB-selectmode\fR. +.OP \-show show Show +A list containing zero or more of the following values, specifying +which elements of the tree to display. +.RS +.IP \fBtree\fR +Display tree labels in column #0. +.IP \fBheadings\fR +Display the heading row. +.PP +The default is \fBtree headings\fR, i.e., show all elements. +.PP +\fBNOTE:\fR Column #0 always refers to the tree column, +even if \fB-show tree\fR is not specified. +.RE +.SH "WIDGET COMMAND" +.TP +\fIpathname \fBbbox\fR \fIitem\fR ?\fIcolumn\fR? +Returns the bounding box (relative to the treeview widget's window) +of the specified \fIitem\fR +in the form \fIx y width height\fR. +If \fIcolumn\fR is specified, returns the bounding box of that cell. +If the \fIitem\fR is not visible +(i.e., if it is a descendant of a closed item or is scrolled offscreen), +returns the empty list. +.TP +\fIpathname \fBcget\fR \fIoption\fR +Returns the current value of the specified \fIoption\fR; see \fIwidget(n)\fR. +.TP +\fIpathname \fBchildren\fR \fIitem\fR ?\fInewchildren\fR? +If \fInewchildren\fR is not specified, +returns the list of children belonging to \fIitem\fR. +.br +If \fInewchildren\fR is specified, replaces \fIitem\fR's child list +with \fInewchildren\fR. +Items in the old child list not present in the new child list +are detached from the tree. +None of the items in \fInewchildren\fR may be an ancestor +of \fIitem\fR. +.TP +\fIpathname \fBcolumn\fR \fIcolumn\fR ?\fI-option \fR?\fIvalue -option value...\fR? +Query or modify the options for the specified \fIcolumn\fR. +If no \fI-option\fR is specified, +returns a dictionary of option/value pairs. +If a single \fI-option\fR is specified, +returns the value of that option. +Otherwise, the options are updated with the specified values. +The following options may be set on each column: +.RS +.TP +\fB-id \fIname\fR +The column name. This is a read-only option. +For example, [\fI$pathname \fBcolumn #\fIn \fB-id\fR] +returns the data column associated with data column #\fIn\fR. +.TP +\fB-anchor\fR +Specifies how the text in this column should be aligned +with respect to the cell. One of +\fBn\fR, \fBne\fR, \fBe\fR, \fBse\fR, +\fBs\fR, \fBsw\fR, \fBw\fR, \fBnw\fR, or \fBcenter\fR. +.TP +\fB-width \fIw\fR +The width of the column in pixels. Default is something reasonable, +probably 200 or so. +.PP +Use \fIpathname column #0\fR to configure the tree column. +.RE +.TP +\fIpathname \fBconfigure\fR ?\fIoption\fR? ?\fIvalue option value ...\fR? +Modify or query widget options; see \fIwidget(n)\fR. +.TP +\fIpathname \fBdelete\fR \fIitemList\fR +Deletes each of the items in \fIitemList\fR and all of their descendants. +The root item may not be deleted. +See also: \fBdetach\fR. +.TP +\fIpathname \fBdetach\fR \fIitemList\fR +Unlinks all of the specified items in \fIitemList\fR from the tree. +The items and all of their descendants are still present +and may be reinserted at another point in the tree +but will not be displayed. +The root item may not be detached. +See also: \fBdelete\fR. +.TP +\fIpathname \fBexists \fIitem\fR +Returns 1 if the specified \fIitem\fR is present in the tree, +0 otherwise. +.TP +\fIpathname \fBfocus \fR?\fIitem\fR? +If \fIitem\fR is specified, sets the focus item to \fIitem\fR. +Otherwise, returns the current focus item, or \fB{}\fR if there is none. +.\" Need: way to clear the focus item. {} works for this... +.TP +\fIpathname \fBheading\fR \fIcolumn\fR ?\fI-option \fR?\fIvalue -option value...\fR? +Query or modify the heading options for the specified \fIcolumn\fR. +Valid options are: +.RS +.TP +\fB-text \fItext\fR +The text to display in the column heading. +.TP +\fB-image \fIimageName\fR +Specifies an image to display to the right of the column heading. +.TP +\fB-anchor \fIanchor\fR +Specifies how the heading text should be aligned. +One of the standard Tk anchor values. +.TP +\fB-command \fIscript\fR +A script to evaluate when the heading label is pressed. +.PP +Use \fIpathname heading #0\fR to configure the tree column heading. +.RE +.TP +\fIpathname \fBidentify \fIcomponent x y\fR +Returns a description of the specified \fIcomponent\fR +under the point given by \fIx\fR and \fIy\fR, +or the empty string if no such \fIcomponent\fR is present at that position. +The following subcommands are supported: +.RS +.TP +\fIpathname \fBidentify row\fR \fIx y\fR +Returns the item ID of the item at position \fIy\fR. +.TP +\fIpathname \fBidentify column\fR \fIx y\fR +Returns the data column identifier of the cell at position \fIx\fR. +The tree column has ID \fB#0\fR. +.PP +See \fBCOLUMN IDENTIFIERS\fR for a discussion of display columns +and data columns. +.RE +.TP +\fIpathname \fBindex \fIitem\fR +Returns the integer index of \fIitem\fR within its parent's list of children. +.TP +\fIpathname \fBinsert\fR \fIparent\fR \fIindex\fR ?\fB-id \fIid\fR? \fIoptions...\fR +Creates a new item. +\fIparent\fR is the item ID of the parent item, +or the empty string \fB{}\fR +to create a new top-level item. +\fIindex\fR is an integer, or the value \fBend\fR, specifying where in the +list of \fIparent\fR's children to insert the new item. +If \fIindex\fR is less than or equal to zero, +the new node is inserted at the beginning; +if \fIindex\fR is greater than or equal to the current number of children, +it is inserted at the end. +If \fB-id\fR is specified, it is used as the item identifier; +\fIid\fR must not already exist in the tree. +Otherwise, a new unique identifier is generated. +.br +\fIpathname \fBinsert\fR returns the item identifier of the +newly created item. +See \fBITEM OPTIONS\fR for the list of available options. +.TP +\fIpathname \fBinstate \fIstatespec\fR ?\fIscript\fR? +Test the widget state; see \fIwidget(n)\fR. +.TP +\fIpathname \fBitem\fR \fIitem\fR ?\fI-option \fR?\fIvalue -option value...\fR? +Query or modify the options for the specified \fIitem\fR. +If no \fI-option\fR is specified, +returns a dictionary of option/value pairs. +If a single \fI-option\fR is specified, +returns the value of that option. +Otherwise, the item's options are updated with the specified values. +See \fBITEM OPTIONS\fR for the list of available options. +.TP +\fIpathname \fBmove \fIitem parent index\fR +Moves \fIitem\fR to position \fIindex\fR in \fIparent\fR's list of children. +It is illegal to move an item under one of its descendants. +.br +If \fIindex\fR is less than or equal to zero, \fIitem\fR is moved +to the beginning; if greater than or equal to the number of children, +it's moved to the end. +.TP +\fIpathname \fBnext \fIitem\fR +Returns the identifier of \fIitem\fR's next sibling, +or \fB{}\fR if \fIitem\fR is the last child of its parent. +.TP +\fIpathname \fBparent \fIitem\fR +Returns the ID of the parent of \fIitem\fR, +or \fB{}\fR if \fIitem\fR is at the top level of the hierarchy. +.TP +\fIpathname \fBprev \fIitem\fR +Returns the identifier of \fIitem\fR's previous sibling, +or \fB{}\fR if \fIitem\fR is the first child of its parent. +.TP +\fIpathname \fBsee\fR \fIitem\fR +Ensure that \fIitem\fR is visible: +sets all of \fIitem\fR's ancestors to \fB-open true\fR, +and scrolls the widget if necessary so that \fIitem\fR is +within the visible portion of the tree. +.TP +\fIpathname \fBselection\fR ?\fIselop\fR \fIitemList\fR? +If \fIselop\fR is not specified, returns the list of selected items. +Otherwise, \fIselop\fR is one of the following: +.RS +.TP +\fIpathname \fBselection set \fIitemList\fR +\fIitemList\fR becomes the new selection. +.TP +\fIpathname \fBselection add \fIitemList\fR +Add \fIitemList\fR to the selection +.TP +\fIpathname \fBselection remove \fIitemList\fR +Remove \fIitemList\fR from the selection +.TP +\fIpathname \fBselection toggle \fIitemList\fR +Toggle the selection state of each item in \fIitemList\fR. +.RE +.TP +\fIpathname \fBset\fR \fIitem\fR ?\fIcolumn\fR ?\fIvalue\fR?? +With one argument, returns a dictionary of column/value pairs +for the specified \fIitem\fR. +With two arguments, returns the current value of the specified \fIcolumn\fR. +With three arguments, sets the value of column \fIcolumn\fR +in item \fIitem\fR to the specified \fIvalue\fR. +See also \fBCOLUMN IDENTIFIERS\fR. +.TP +\fIpathname \fBstate\fR ?\fIstateSpec\fR? +Modify or query the widget state; see \fIwidget(n)\fR. +.TP +\fIpathName \fBtag \fIargs...\fR +.RS +.TP +\fIpathName \fBtag bind \fItagName \fR?\fIsequence \fR?\fIscript\fR?? +Add a Tk binding script for the event sequence \fIsequence\fR +to the tag \fItagName\fR. When an X event is delivered to an item, +binding scripts for each of the item's \fB-tags\fR are evaluated +in order as per \fIbindtags(n)\fR. +.br +\fB<KeyPress>\fR, \fB<KeyRelease>\fR, and virtual events +are sent to the focus item. +\fB<ButtonPress>\fR, \fB<ButtonRelease>\fR, and \fB<Motion>\fR events +are sent to the item under the mouse pointer. +No other event types are supported. +.br +The binding \fIscript\fR undergoes \fB%\fR-substitutions before +evaluation; see \fBbind(n)\fR for details. +.TP +\fIpathName \fBtag configure\fR ?\fIoption\fR? ?\fIvalue option value ...\fR? +Query or modify the options for the specified \fItagName\fR. +If one or more \fIoption/value\fR pairs are specified, +sets the value of those options for the specified tag. +If a single \fIoption\fR is specified, +returns the value of that option +(or the empty string if the option has not been specified for \fItagName\fR). +With no additional arguments, +returns a dictionary of the option settings for \fItagName\fR. +See \fBTAG OPTIONS\fR for the list of available options. +.RE +.TP +\fIpathName \fByview \fIargs\fR +Standard command for vertical scrolling; see \fIwidget(n)\fR. + +.PP +.SH "ITEM OPTIONS" +The following item options may be specified for items +in the \fBinsert\fR and \fBitem\fR widget commands. +.OP \-text text Text +The textual label to display for the item. +.OP \-image image Image +A Tk image, displayed to the left of the label. +.OP \-values values Values +The list of values associated with the item. +.br +Each item should have the same number of values as +the \fB-columns\fR widget option. +If there are fewer values than columns, +the remaining values are assumed empty. +If there are more values than columns, +the extra values are ignored. +.OP \-open open Open +A boolean value indicating whether the items's children +should be displayed (\fB-open true\fR) or hidden (\fB-open false\fR). +.OP \-tags tags Tags +A list of tags associated with this item. +.SH "TAG OPTIONS" +The following options may be specified on tags: +.IP \-foreground +Specifies the text foreground color. +.IP \-background +Specifies the cell or item background color. +.IP \-font +Specifies the font to use when drawing text. +.\" ??? Maybe: .IP \-anchor +.\" ??? Maybe: .IP \-padding +.\" ??? Maybe: .IP \-text +.IP \-image +Specifies the item image, in case the item's \fB-image\fR option is empty. +.PP +\fI(@@@ TODO: sort out order of precedence for options)\fR +.SH "COLUMN IDENTIFIERS" +Column identifiers take any of the following forms: +.IP \(bu +A symbolic name from the list of \fB-columns\fR. +.IP \(bu +An integer \fIn\fR, specifying the \fIn\fRth data column. +.IP \(bu +A string of the form \fB#\fIn\fR, where \fIn\fR is an integer, +specifying the \fIn\fRth display column. +.PP +\fBNOTE:\fR +Item \fB-values\fR may be displayed in a different order than +the order in which they are stored. +.PP +\fBNOTE:\fR Column #0 always refers to the tree column, +even if \fB-show tree\fR is not specified. +.PP +A \fIdata column number\fR is an index into an item's \fB-values\fR list; +a \fIdisplay column number\fR is the column number in the tree +where the values are displayed. +Tree labels are displayed in column #0. +If \fB-displaycolumns\fR is not set, +then data column \fIn\fR is displayed in display column \fB#\fIn+1\fR. +Again, \fBcolumn #0 always refers to the tree column\fR. +.SH "VIRTUAL EVENTS" +The treeview widget generates the following virtual events. +.IP <<TreeviewSelect>> +Generated whenever the selection changes. +.IP <<TreeviewOpen>> +Generated just before setting the focus item to \fB-open true\fR. +.IP <<TreeviewClose>> +Generated just after setting the focus item to \fB-open false\fR. +.PP +The \fBfocus\fR and \fBselection\fR widget commands can be used +to determine the affected item or items. +In Tk 8.5, the affected item is also passed as the \fB-detail\fR field +of the virtual event. +.SH "SEE ALSO" +widget(n), listbox(n), image(n), bind(n) |