Safe Haskell	None
Language	GHC2024

NanoUI.Frame.TextEdit

Contents

Dispatch between field kinds
Context menu
Shared field helpers
Text areas

Description

Text-field editing facade: single-line fields (NanoUI.Frame.TextInput), text areas (NanoUI.Frame.TextArea) and their context menu (NanoUI.Frame.TextEdit.Menu), plus the dispatchers that pick between the two field kinds.

Synopsis

finalizeTextFieldMouse :: Context -> Input -> IO ()
collapseTextFieldSelection :: Context -> WidgetId -> IO ()
applyTextFieldMenuAction :: Context -> WidgetId -> Int -> IO ()
textEditMenuRectAt :: Float -> Float -> Float -> Size -> Rect
textEditMenuWidth :: Context -> IO Float
normalizeTextFieldClicks :: Context -> WidgetId -> Int -> Int -> Int -> Bool -> Int -> IO Int
textWordBounds :: Text -> Int -> (Int, Int)
data TextAreaHit = TextAreaHit {
- tahNodeIdx :: !NodeIdx
- tahFieldRect :: !Rect
- tahContentX :: !Float
- tahLineH :: !Float
- tahWidgetX :: !Float
- tahWidgetY :: !Float
- tahWidgetW :: !Float
- tahWidgetH :: !Float
}
data TextAreaScrollBarLayouts = TextAreaScrollBarLayouts {
- tasbVertical :: !(Maybe ScrollBarLayout)
- tasbHorizontal :: !(Maybe ScrollBarLayout)
}
resolveTextAreaFont :: Context -> NodeIdx -> IO FontMetrics
textAreaContentMetrics :: Context -> NodeIdx -> IO (Float, Float)
textAreaBarLane :: Float
textAreaLineHeight :: FontMetrics -> Float
textAreaHitForWidget :: Context -> WidgetId -> IO (Maybe TextAreaHit)
textAreaScrollBarLayout :: FontMetrics -> Rect -> Float -> Float -> Maybe ScrollBarLayout
textAreaHScrollBarLayout :: FontMetrics -> Rect -> Float -> Float -> Maybe ScrollBarLayout
textAreaScrollBarLayouts :: FontMetrics -> Rect -> Float -> Float -> Float -> Float -> TextAreaScrollBarLayouts

Dispatch between field kinds

finalizeTextFieldMouse :: Context -> Input -> IO () Source #

Mouse selection in the focused field, whichever kind it is. A release ends any drag.

collapseTextFieldSelection :: Context -> WidgetId -> IO () Source #

Context menu

applyTextFieldMenuAction :: Context -> WidgetId -> Int -> IO () Source #

textEditMenuRectAt :: Float -> Float -> Float -> Size -> Rect Source #

Menu rect at the pointer, kept inside the window.

textEditMenuWidth :: Context -> IO Float Source #

Shared field helpers

normalizeTextFieldClicks :: Context -> WidgetId -> Int -> Int -> Int -> Bool -> Int -> IO Int Source #

Count a press as a multi-click only when it lands on the same cell as the previous press; anything else restarts the count at one.

textWordBounds :: Text -> Int -> (Int, Int) Source #

Find the word bounds around a character position in text.

Text areas

data TextAreaHit Source #

Constructors

TextAreaHit
Fields tahNodeIdx :: !NodeIdx tahFieldRect :: !Rect tahContentX :: !Float tahLineH :: !Float tahWidgetX :: !Float tahWidgetY :: !Float tahWidgetW :: !Float tahWidgetH :: !Float

data TextAreaScrollBarLayouts Source #

Constructors

TextAreaScrollBarLayouts
Fields tasbVertical :: !(Maybe ScrollBarLayout) tasbHorizontal :: !(Maybe ScrollBarLayout)

Instances

Instances details

Eq TextAreaScrollBarLayouts Source #
Instance details Defined in NanoUI.Frame.TextArea.Geometry Methods (==) :: TextAreaScrollBarLayouts -> TextAreaScrollBarLayouts -> Bool # (/=) :: TextAreaScrollBarLayouts -> TextAreaScrollBarLayouts -> Bool #
Show TextAreaScrollBarLayouts Source #
Instance details Defined in NanoUI.Frame.TextArea.Geometry Methods showsPrec :: Int -> TextAreaScrollBarLayouts -> ShowS # show :: TextAreaScrollBarLayouts -> String # showList :: [TextAreaScrollBarLayouts] -> ShowS #

resolveTextAreaFont :: Context -> NodeIdx -> IO FontMetrics Source #

Font the text-area content is laid out and painted in. Honors the node's layoutFontSize (set via fontSize on the editor layout) so a single text area can zoom without changing the rest of the UI. A size of 0 means the base UI font.

textAreaContentMetrics :: Context -> NodeIdx -> IO (Float, Float) Source #

Content extent of a text area, (contentWidth, contentHeight). Measuring the width scans every character of the document, so the result is cached per widget and only refreshed when the text changes (the editor clears SlotTextAreaContentFont) or the node font changes.

textAreaBarLane :: Float Source #

Width of the vertical and height of the horizontal scrollbar lane.

textAreaLineHeight :: FontMetrics -> Float Source #

Text area row height, snapped to the device pixel grid.

textAreaHitForWidget :: Context -> WidgetId -> IO (Maybe TextAreaHit) Source #

textAreaScrollBarLayout :: FontMetrics -> Rect -> Float -> Float -> Maybe ScrollBarLayout Source #

textAreaHScrollBarLayout :: FontMetrics -> Rect -> Float -> Float -> Maybe ScrollBarLayout Source #

textAreaScrollBarLayouts :: FontMetrics -> Rect -> Float -> Float -> Float -> Float -> TextAreaScrollBarLayouts Source #