AddItem adds a primitive and its position to the grid. The top-left corner of the primitive will be located in the top-left corner of the grid cell at

HasFocus determines if the primitive has focus. This function must return true also if one of this primitive's child elements has focus.

GetInnerRect returns the position of the inner rectangle (x, y, width, height), without the border and without any padding. Width and height values wi

NewBox returns a Box without a border.

SetBorder sets the flag indicating whether or not the box should have a border.

SetContent sets a new content type for this table. This allows you to back the table by a data structure of your own, for example one that cannot be f

SetTitle sets the box's title.

findCursor determines the cursor position if its "row" value is < 0 (=unknown) but only its span position ("pos" value) is known. If the cursor positi

SetText sets the message text of the window. The text may contain line breaks but style tag states will not transfer to following lines. Note that wor

printWithStyle works like [Print] but it takes a style instead of just a foreground color. The skipWidth parameter specifies the number of cells skipp

EnableMouse enables mouse events or disables them (if "false" is provided).

NewApplication creates and returns a new application.

Run starts the application and thus the event loop. This function returns when [Application.Stop] was called. Note that while an application is runni

NewTextView returns a new text view.

DrawForSubclass draws this box under the assumption that primitive p is a subclass of this box. This is needed e.g. to draw proper box frames which de

SetDoneFunc sets a function which is called when the user presses the Escape key.

SetRect sets a new position of the primitive.

InRect returns true if the given coordinate is within the bounds of the box's rectangle.

SetBorders sets whether or not borders are drawn around grid items. Setting this value to true will cause the gap values (see SetGap()) to be ignored

TaggedStringWidth returns the width of the given string needed to print it on screen. The text may contain style tags which are not counted.

WrapInputHandler wraps an input handler (see [Box.InputHandler]) with the functionality to capture input (see [Box.SetInputCapture]) before passing it

WrapMouseHandler wraps a mouse event handler (see [Box.MouseHandler]) with the functionality to capture mouse events (see [Box.SetMouseCapture]) befor

truncateLines truncates the trailing lines of the [TextArea.lineStarts] slice such that len(lineStarts) <= fromLine. If fromLine is negative, a value

Draw draws this primitive onto the screen. Implementers can call the screen's ShowCursor() function but should only do so when they have focus. (They

InputHandler returns a handler which receives key events when it has focus. It is called by the Application class. A value of nil may also be returne

SetRoot sets the root primitive for this application. If "fullscreen" is set to true, the root primitive's position will be changed to fill the screen

NewFlex returns a new flexbox layout container with no primitives and its direction set to FlexColumn. To add primitives to this layout, see AddItem()

moveCursor sets the cursor's screen position and span position for the given row and column which are screen space coordinates relative to the top-lef

replace deletes a range of text and inserts the given text at that position. If the resulting text would exceed the maximum length, the function does

Remove all table data.

Focus is called by the application when the primitive receives focus. Implementers may call delegate() to pass the focus on to another primitive.

MouseHandler returns a handler which receives mouse events. It is called by the Application class. A value of nil may also be returned to stop the do

SetLabel sets the text to be displayed before the image.

Stop stops the application, causing Run() to return.

step uses uniseg.Step to iterate over the grapheme clusters of a string but (optionally) also parses the string for style or region tags. This functi

AddText adds text to the frame. Set "header" to true if the text is to appear in the header, above the contained primitive. Set it to false for it to

Highlight specifies which regions should be highlighted. If highlight toggling is set to true (see [TextView.SetToggleHighlights]), the highlight of t

SetDynamicColors sets the flag that allows the text color to be changed dynamically with style tags. See class description for details.

SetSelectable sets the flags which determine what can be selected in a table. There are three selection modi: - rows = false, columns = false: Nothin

Width returns the grapheme cluster's width in cells.

draw actually does what Draw() promises to do.

resetIndex resets all indexed data, including the line index.

step is similar to [github.com/rivo/uniseg.StepString] but it iterates over the piece chain, starting with "pos", a span position plus state (which ma

AddPage adds a new page with the given name and primitive. If there was previously a page with the same name, it is overwritten. Leaving the name empt

PrintJoinedSemigraphics prints a semigraphics rune into the screen at the given position with the given style, joining it with any existing semigraphi

SetRoot sets the root node of the tree.

Escape escapes the given text such that color and/or region tags are not recognized and substituted by the print functions of this package. For exampl

Return the cell at the given position or nil if there is no cell. The row and column arguments start at 0 and end at what GetRowCount() and GetColumnC

GetText returns the current text of the input field.

PasteHandler returns a handler which receives pasted text. It is called by the Application class. A value of nil may also be returned to stop the dow

WrapPasteHandler wraps a paste handler (see [Box.PasteHandler]).

extendLines traverses the current text and extends [TextArea.lineStarts] such that it describes at least maxLines+1 lines (or less if the text is shor

getSelection returns the current selection as span locations where the first returned location is always before or the same as the second returned loc

GetLabel returns the item's label text.

NewList returns a new list.

SetBorderPadding sets the size of the borders around the box content.

SetSelectedFunc sets the function which is called when the user selects a list item by pressing Enter on the current selection. The function receives

SetWrap sets the flag that, if true, leads to lines that are longer than the available width being wrapped onto the next line. If false, any character

AddButton adds a new button to the form. The "selected" function is called when the user selects this button. It may be nil.

Focus is called by the application when the primitive receives focus.

GrossLength returns the grapheme cluster's length in bytes, including any tags that were parsed but not explicitly returned.

HasFocus returns whether or not this primitive has focus.

NewInputField returns a new input field.

ScrollToHighlight will cause the visible area to be scrolled so that the highlighted regions appear in the visible area of the text view. This reposit

SetAlign sets the vertical and horizontal alignment of the image within the widget's space. The possible values are [AlignTop], [AlignCenter], and [Al

SetInputCapture installs a function which captures key events before they are forwarded to the primitive's default key event handler. This function ca

parseAhead parses the text buffer starting at the last line in [TextView.lineIndex] until either the end of the buffer or until stop returns true for

EnablePaste enables the capturing of paste events or disables them (if "false" is provided). This must be supported by the terminal. Widgets won't in

NewPages returns a new Pages object.

Replace replaces a section of the text with new text. The start and end positions refer to index positions within the entire text string (as a half-op

SetBackgroundColor sets the box's background color.

SetChangedFunc sets the function which is called when the user navigates to a list item. The function receives the item's index in the list of items (

SetCurrentItem sets the currently selected item by its index, starting at 0 for the first item. If a negative index is provided, items are referred to

SetDirection sets the direction in which the contained primitives are distributed. This can be either FlexColumn (default) or FlexRow. Note that these

SetFocus sets the focus to a new primitive. All key events will be directed down the hierarchy (starting at the root) until a primitive handles them,

ShowSecondaryText determines whether or not to show secondary item texts.

AddButtons adds buttons to the window. There must be at least one button and a "done" handler so the window can be closed again.

AddInputField adds an input field to the form. It has a label, an optional initial value, a field width (a value of 0 extends it as far as possible),

Autocomplete invokes the autocomplete callback (if there is one, see [InputField.SetAutocompleteFunc]). If the length of the returned autocomplete ent

Blur is called by the application when the primitive loses focus.

Return the total number of rows in the table.

NewFrame returns a new frame around the given primitive. The primitive's size will be changed to fit within this frame. The primitive may be nil, in w

NewGrid returns a new grid-based layout container with no initial primitives. Note that Box, the superclass of Grid, will be transparent so that any

NewModal returns a new modal message window.

Print prints text onto the screen into the given box at (x,y,maxWidth,1), not exceeding that box. "align" is one of AlignLeft, AlignCenter, or AlignRi

SetColors sets the number of colors to use. This should be the number of colors supported by the terminal. If 0, the number of colors is chosen based

SetFieldWidth sets the screen width of the options area. A value of 0 means extend to as long as the longest option text.

SetRows defines how the rows of the grid are distributed. These values behave the same as the column values provided with [Grid.SetColumns], see there

SetSeparator sets the character used to fill the space between two neighboring cells. This is a space character ' ' per default but you may want to se

SetTextColor sets the color of the message text.

moveWordLeft moves the cursor to the beginning of the current or previous word. If clamp is true, the cursor will be visible during the next call to [

stripTags strips style tags from the given string. (Region tags are not stripped.)

Center returns a new primitive which shows the provided primitive in its center, given the provided primitive's size.

Code returns a primitive which displays the given primitive (with the given size) on the left side and its source code on the right side.

GetDisabled returns whether or not the item is disabled / read-only.

GetHighlights returns the IDs of all currently highlighted regions.

GetText returns the entire text of the text area. Note that this will newly allocate the entire text.

NewForm returns a new form.

NewTable returns a new table.

NewTableCell returns a new table cell with sensible defaults. That is, left aligned text with the primary text color (see Styles) and a transparent ba