Copyright	(c) 2018 Francisco Vallarino
License	BSD-3-Clause (see the LICENSE file)
Maintainer	fjvallarino@gmail.com
Stability	experimental
Portability	non-portable
Safe Haskell	None
Language	Haskell2010

Monomer.Widgets.Util.Drawing

Description

Utility drawing functions. Built on top the lower level primitives provided by Monomer.Graphics.Types.Renderer.

Synopsis

drawInScissor :: Renderer -> Bool -> Rect -> IO () -> IO ()
drawInTranslation :: Renderer -> Point -> IO () -> IO ()
drawInScale :: Renderer -> Point -> IO () -> IO ()
drawInRotation :: Renderer -> Double -> IO () -> IO ()
drawInAlpha :: Renderer -> Double -> IO () -> IO ()
drawTextLine :: Renderer -> StyleState -> TextLine -> IO ()
drawLine :: Renderer -> Point -> Point -> Double -> Maybe Color -> IO ()
drawRect :: Renderer -> Rect -> Maybe Color -> Maybe Radius -> IO ()
drawRectBorder :: Renderer -> Rect -> Border -> Maybe Radius -> IO ()
drawArc :: Renderer -> Rect -> Double -> Double -> Winding -> Maybe Color -> IO ()
drawArcBorder :: Renderer -> Rect -> Double -> Double -> Winding -> Maybe Color -> Double -> IO ()
drawEllipse :: Renderer -> Rect -> Maybe Color -> IO ()
drawEllipseBorder :: Renderer -> Rect -> Maybe Color -> Double -> IO ()
drawArrowUp :: Renderer -> Rect -> Maybe Color -> IO ()
drawArrowDown :: Renderer -> Rect -> Maybe Color -> IO ()
drawTimesX :: Renderer -> Rect -> Double -> Maybe Color -> IO ()
drawStyledAction :: Renderer -> Rect -> StyleState -> (Rect -> IO ()) -> IO ()
drawStyledAction_ :: Renderer -> Bool -> Rect -> StyleState -> (Rect -> IO ()) -> IO ()
drawRoundedRect :: Renderer -> Rect -> Radius -> IO ()
drawRoundedRectBorder :: Renderer -> Rect -> Border -> Radius -> IO ()

Documentation

drawInScissor Source #

Arguments

:: Renderer	The renderer.
-> Bool	Whether to apply the scissor (useful to selectively apply).
-> Rect	Scissor rect, where drawing will be visible.
-> IO ()	Drawing operations.
-> IO ()	The resulting action.

Performs the provided drawing operations with an active scissor, and then | disables it.

drawInTranslation Source #

Arguments

:: Renderer	The renderer.
-> Point	The offset to apply.
-> IO ()	Drawing operations.
-> IO ()	The resulting action.

Performs the provided drawing operations displaced by the given offset.

drawInScale Source #

Arguments

:: Renderer	The renderer.
-> Point	The horizontal and vertical scale factor to apply.
-> IO ()	Drawing operations.
-> IO ()	The resulting action.

Performs the provided drawing operations with the given resize scale.

drawInRotation Source #

Arguments

:: Renderer	The renderer.
-> Double	The angle in degrees.
-> IO ()	Drawing operations.
-> IO ()	The resulting action.

Performs the provided drawing operations with the given rotation angle.

drawInAlpha Source #

Arguments

:: Renderer	The renderer.
-> Double	The global alpha to apply.
-> IO ()	Drawing operations.
-> IO ()	The resulting action.

Performs the provided drawing operations with a global alpha applied.

drawTextLine Source #

Arguments

:: Renderer	The renderer.
-> StyleState	The style to apply.
-> TextLine	The TextLine with the text to render.
-> IO ()	The resulting action.

Draws a TextLine with the provided style. Font and size must be the same | as when the TextLine was created, but color and decorations can change.

drawLine Source #

Arguments

:: Renderer	The renderer.
-> Point	The start point.
-> Point	The end point.
-> Double	The line width.
-> Maybe Color	The color. If Nothing, the line will not be drawn.
-> IO ()	The resulting action.

Draws a line with the given width and color.

drawRect Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rectangle to be drawn.
-> Maybe Color	The color. If Nothing, the rect will not be drawn.
-> Maybe Radius	The optional radius config.
-> IO ()	The resulting action.

Draws a filled rect with the given color and radius.

drawRectBorder Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rectangle to be drawn.
-> Border	The border config.
-> Maybe Radius	The optional radius config.
-> IO ()	The resulting action.

Draws a rect's border, with an optional radius.

drawArc Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the arc area.
-> Double	The start angle in degrees.
-> Double	The end angle in degrees.
-> Winding	The direction in which the arc is drawn.
-> Maybe Color	The color. If Nothing, the arc will not be drawn.
-> IO ()	The resulting action.

Draws a filled arc, delimited by a rect and within the given angles.

drawArcBorder Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the arc area.
-> Double	The start angle in degrees.
-> Double	The end angle in degrees.
-> Winding	The direction in which the arc is drawn.
-> Maybe Color	The color. If Nothing, the arc will not be drawn.
-> Double	The arc width.
-> IO ()	The resulting action.

Draws an arc's border, delimited by a rect and within the given angles.

drawEllipse Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the ellipse.
-> Maybe Color	The color. If Nothing, the ellipse will not be drawn.
-> IO ()	The resulting action.

Draws a filled ellipse, delimited by a rect.

drawEllipseBorder Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the ellipse.
-> Maybe Color	The color. If Nothing, the ellipse will not be drawn.
-> Double	The border width.
-> IO ()	The resulting action.

Draws an ellipse's border, delimited by a rect.

drawArrowUp Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the arrow.
-> Maybe Color	The color. If Nothing, the arrow will not be drawn.
-> IO ()	The resulting action.

Draws a triangular arrow pointing up, delimited by the given rect.

drawArrowDown Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the arrow.
-> Maybe Color	The color. If Nothing, the arrow will not be drawn.
-> IO ()	The resulting action.

Draws a triangular arrow pointing down, delimited by the given rect.

drawTimesX Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect delimiting the arrow.
-> Double	The width of the lines.
-> Maybe Color	The color. If Nothing, the X will not be drawn.
-> IO ()	The resulting action.

Draws an X, delimited by the given rect.

drawStyledAction Source #

Arguments

:: Renderer	The renderer.
-> Rect	The rect where background and border will be drawn.
-> StyleState	The style defining background and border.
-> (Rect -> IO ())	The drawing actions. They receive the content area.
-> IO ()	The resulting action.

Runs a set of rendering operations after drawing the style's background, and before drawing the style's border.

drawStyledAction_ Source #

Arguments

:: Renderer	The renderer.
-> Bool	Whether background and border should be drawn.
-> Rect	The rect where background and border will be drawn.
-> StyleState	The style defining background and border.
-> (Rect -> IO ())	The drawing actions. They receive the content area.
-> IO ()	The resulting action.

Runs a set of rendering operations after conditionally drawing the style's background, and before drawing the style's border.

drawRoundedRect :: Renderer -> Rect -> Radius -> IO () Source #

Draws a rounded rect with the provided radius config.

drawRoundedRectBorder :: Renderer -> Rect -> Border -> Radius -> IO () Source #

Draws the border of a rounded rect. Borders' widths may not match.