GetFieldHeight returns this primitive's field height. This is the image's height or 8 if the height is 0 or less.

GetFieldHeight returns the height of the form item's field (the area which is manipulated by the user). This value must be greater than 0.

GetFieldWidth returns the width of the form item's field (the area which is manipulated by the user) in number of screen cells. A value of 0 indicates

GetLabelStyle returns the style of the label.

GetLabelWidth returns the screen width of the label.

GetPlaceholderStyle returns the style of the input area (when a placeholder is shown).

GetTextLength returns the string length of the text in the text area.

Insert a new empty column at the given position by shifting all columns at that position and to the right by one to the right. Implementers may decide

InsertItem adds a new item to the list at the specified index. An index of 0 will insert the item at the beginning, an index of 1 before the second it

Insert a new empty row at the given position by shifting all rows at that position and below down by one. Implementers may decide what to do with out

IsDisabled returns whether or not the button is disabled.

NewRadioButtons returns a new radio button primitive.

Remove the column at the given position by shifting all following columns left by one. Out of range positions may be ignored.

RemoveItem removes all items for the given primitive from the grid, keeping the order of the remaining items intact.

RemovePage removes the page with the given name. If that page was the only visible page, visibility is assigned to the last page.

Remove the row at the given position by shifting all following rows up by one. Out of range positions may be ignored.

Select selects a section of the text. The start and end positions refer to index positions within the entire text string (as a half-open interval). Th

SetActivatedStyle sets the style of the button used when it is focused.

SetAutocompletedFunc sets a callback function which is invoked when the user selects an entry from the autocomplete drop-down list. The function is pa

SetBorderAttributes sets the border's style attributes. You can combine different attributes using bitmask operations: box.SetBorderAttributes(tcell

SetBordersColor sets the color of the item borders.

SetButtonBackgroundColor sets the background color of the buttons.

SetButtonTextColor sets the color of the button texts.

SetButtonsAlign sets how the buttons align horizontally, one of AlignLeft (the default), AlignCenter, and AlignRight. This is only

SetCancelFunc sets a handler which is called when the user hits the Escape key.

SetCell sets the content of a cell the specified position. It is ok to directly instantiate a TableCell object. If the cell has content, at least the

SetCellSimple calls SetCell() with the given text, left-aligned, in white.

SetChecked sets the state of the checkbox. This also triggers the "changed" callback if the state changes with this call.

SetClipboard allows you to implement your own clipboard by providing a function that is called when the user wishes to store text in the clipboard (co

SetCurrentOption sets the index of the currently selected option. This may be a negative value to indicate that no option is currently selected. Calli

SetDisabled sets whether or not the item is disabled / read-only. A form must have at least one item that is not disabled.

SetDisabledStyle sets the style of the button used when it is disabled.

SetExitFunc sets a handler which is called when the user leaves the button. The callback function is provided with the key that was pressed, which is

SetExpansion sets the value by which the column of this cell expands if the available width for the table is more than the table width (prior to apply

SetFieldBackgroundColor sets the background color of the input area.

SetFieldStyle sets the style of the options area.

SetFieldTextColor sets the text color of the input area.

SetFinishedFunc sets the handler function for when the user finished entering data into the item. The handler may receive events for the Enter key (we

SetFocusFunc sets a callback function which is invoked when this primitive receives focus. Container primitives such as [Flex] or [Grid] may not be no

SetHighlightedFunc sets a handler which is called when the list of currently highlighted regions change. It receives a list of region IDs which were n

SetInputCapture sets a function which captures all key events before they are forwarded to the key event handler of the primitive which currently has

SetItemText sets an item's main and secondary text. Panics if the index is out of range.

SetLabelColor sets the color of the label.

SetLabelColor sets the color of the label.

SetLabelStyle sets the style of the label.

SetLabelStyle sets the style of the label.

SetMaskCharacter sets a character that masks user input on a screen. A value of 0 disables masking.

SetMaxLength sets the maximum number of bytes allowed in the text area. A value of 0 means there is no limit. If the text area currently contains more

SetMovedFunc sets a handler which is called whenever the cursor position or the text selection has changed.

SetPlaceholderStyle sets the style of the input area (when a placeholder is shown).

SetRect sets a new position of the primitive. Note that this has no effect if this primitive is part of a layout (e.g. Flex, Grid) or if it was added

SetSelectedFunc sets a handler which is called when the user changes the drop-down's option. This handler will be called in addition and prior to an o

SetStyle sets the style of the button used when it is not focused.

SetText sets the text of the text area. All existing text is deleted and replaced with the new text. Any edits are discarded, no undos are available.

SetUseStyleTags sets a flag which determines whether style tags are used in the main and secondary texts. The default is true.

SetWordWrap sets the flag that causes lines that are longer than the available width to be wrapped onto the next line at spaces or after punctuation m

WordWrap splits a text such that each resulting line does not exceed the given screen width. Split points are determined using the algorithm described

Write lets us implement the io.Writer interface.

Write parses the given text as a string of runes, translates ANSI escape codes to style tags and writes them to the output writer.

alert shows a confirmation dialog.

deleteLine deletes all characters between the last newline before the cursor and the next newline after the cursor (inclusive).

drawPlaceholder draws the placeholder text into the given rectangle. It does not do anything if the text area already contains text or if there is no

evalPrefix selects an item in the drop-down list based on the current prefix.

fireMouseActions analyzes the provided mouse event, derives mouse actions from it and then forwards them to the corresponding primitives.

indexAtPoint returns the index of the list item found at the given position or a negative value if there is no such list item.

render re-populates the [Image.pixels] slice based on the current settings, if [Image.lastWidth] and [Image.lastHeight] don't match the current image'

resize resizes the image to the current size and returns the result as a slice of pixels. It is assumed that [Image.lastWidth] (w) and [Image.lastHeig

setMinCursorPadding sets a minimum width to be reserved left and right of the cursor. This is ignored if wrapping is enabled.

stamp takes the pixels generated by [Image.resize] and populates the [Image.pixels] slice accordingly.

AddFormItem adds a new item to the form. This can be used to add your own objects to the form. Note, however, that the Form class will override some o

AddItem adds a new item to the container. The "fixedSize" argument is a width or height that may not be changed by the layout algorithm. A value of 0

AddItem calls [List.InsertItem] with an index of -1.

BatchWriter returns a new writer that can be used to write into the buffer but without Locking/Unlocking the buffer on every write, as [TextView.Write

Blur is called when this primitive loses focus.

Blur is called when this primitive loses focus.

Clear removes all items from the grid.

Clear does not do anything.

Clear clears all data.

Clear removes all table data.

Clear removes all items from the container.

Clear removes all input elements from the form, including the buttons if specified.

Clear removes all text from the buffer.

Clear removes all text from the buffer. This triggers the "changed" callback.

Clear removes all text from the frame.

Clear removes all items from the list.

ClearButtons removes all buttons from the window.

ClearChildren removes all child nodes from this node.

Close implements io.Closer for the writer by unlocking the original TextView.

Collapse makes the child nodes of this node disappear.

Colors demonstrates how to use colors.

Cover returns the cover page.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.

Draw draws this primitive onto the screen.