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AbstractPainterGRAY4

touchgfx/widgets/canvas/AbstractPainterGRAY4.hpp

The AbstractPainterGRAY4 class is an abstract class for creating a painter to draw on a GRAY4 display using CanvasWidgetRenderer.

See: AbstractPainter

Inherits from: AbstractPainter

Inherited by: PainterGRAY4, PainterGRAY4Bitmap

Public Functions

Additional inherited members

Public Functions inherited from AbstractPainter

AbstractPainter()
Initializes a new instance of the AbstractPainter class.
voidframebufferToDisplay(int16_t & widgetX, int16_t & widgetY) const
Convert Framebuffer widget coordinates to display widget coordinates.
virtual HAL::RenderingMethodgetRenderingMethod() const
Return the applicable rendering method of the painter.
virtual voidpaint(uint8_t * destination, int16_t offset, int16_t widgetX, int16_t widgetY, int16_t count, uint8_t alpha) const =0
Paints a streak of pixels (all with the same alpha) in the framebuffer.
virtual boolsetup(const Rect & widgetRect) const
This function is called before any actual paint operation is started.
virtual voidtearDown() const
This function is called after all paint operation have finished.
virtual ~AbstractPainter()
Finalizes an instance of the AbstractPainter class.

Protected Functions inherited from AbstractPainter

FORCE_INLINE_FUNCTION boolcompatibleFramebuffer(Bitmap::BitmapFormat format)
Helper function to check if the provided bitmap format matches the current framebuffer format.

Protected Attributes inherited from AbstractPainter

int16_twidgetWidth
The width of the widget on screen, used by framebufferToDisplay()

Public Functions Documentation

AbstractPainterGRAY4