tt::draw_context Class Reference

#include <ttauri/GUI/draw_context.hpp>

Public Member Functions
	draw_context (draw_context const &rhs) noexcept=default
	draw_context (draw_context &&rhs) noexcept=default
draw_context &	operator= (draw_context const &rhs) noexcept=default
draw_context &	operator= (draw_context &&rhs) noexcept=default
	draw_context (gui_window &window, aarectangle scissor_rectangle, vspan< pipeline_flat::vertex > &flatVertices, vspan< pipeline_box::vertex > &boxVertices, vspan< pipeline_image::vertex > &imageVertices, vspan< pipeline_SDF::vertex > &sdfVertices) noexcept
draw_context	make_child_context (matrix3 parent_to_local, matrix3 local_to_window, aarectangle clipping_rectangle) const noexcept
aarectangle	clipping_rectangle () const noexcept
void	set_clipping_rectangle (aarectangle clipping_rectangle) noexcept
matrix3	transform () const noexcept
gui_window &	window () const noexcept
gui_device &	device () const noexcept
void	draw_filled_quad (point3 p1, point3 p2, point3 p3, point3 p4, color fill_color) const noexcept
	Draw a polygon with four corners of one color.
void	draw_filled_quad (rectangle r, color fill_color) const noexcept
	Draw a rectangle of one color.
void	draw_box (rectangle box, color fill_color, color line_color, float line_width=1.0, tt::corner_shapes corner_shapes=tt::corner_shapes{}) const noexcept
	Draw an axis aligned box This function will draw the given box.
void	draw_box (rectangle box, color fill_color, color line_color, tt::corner_shapes corner_shapes) const noexcept
void	draw_box (rectangle box, color fill_color, tt::corner_shapes corner_shapes) const noexcept
void	draw_box_with_border_inside (rectangle rectangle, color fill_color, color line_color, float line_width=1.0, tt::corner_shapes corner_shapes=tt::corner_shapes{}) const noexcept
	Draw an axis aligned box This function will shrink to include the size of the border inside the given rectangle.
void	draw_box_with_border_inside (rectangle rectangle, color fill_color, color line_color, tt::corner_shapes corner_shapes) const noexcept
void	draw_box_with_border_outside (rectangle rectangle, color fill_color, color line_color, float line_width=1.0, tt::corner_shapes corner_shapes=tt::corner_shapes{}) const noexcept
	Draw an axis aligned box This function will expand to include the size of the border outside the given rectangle.
void	draw_box_with_border_outside (rectangle rectangle, color fill_color, color line_color, tt::corner_shapes corner_shapes) const noexcept
void	draw_image (pipeline_image::Image &image, matrix3 image_transform) const noexcept
	Draw an image This function will draw an image.
void	draw_text (shaped_text const &text, std::optional< color > text_color={}, matrix3 transform=geo::identity{}) const noexcept
	Draw shaped text.
void	draw_glyph (font_glyph_ids const &glyph, rectangle box, color text_color) const noexcept

Friends
bool	overlaps (draw_context const &context, aarectangle const &rectangle) noexcept

Detailed Description

Draw context for drawing using the TTauri shaders.

Member Function Documentation

draw_box()

void tt::draw_context::draw_box ( rectangle box, color fill_color, color line_color, float line_width = 1.0, tt::corner_shapes corner_shapes = tt::corner_shapes{} ) const

inlinenoexcept

Draw an axis aligned box This function will draw the given box.

This will use the current:

• transform, to transform the opposite corner (rotation is not recommended).
• clippingRectangle
• fillColor
• borderSize
• borderColor
• shadowSize
• cornerShapes

draw_box_with_border_inside()

void tt::draw_context::draw_box_with_border_inside ( rectangle rectangle, color fill_color, color line_color, float line_width = 1.0, tt::corner_shapes corner_shapes = tt::corner_shapes{} ) const

inlinenoexcept

Draw an axis aligned box This function will shrink to include the size of the border inside the given rectangle.

This will make the border be drawn sharply.

This will also adjust rounded corners to the shrunk box.

This function will draw the given box. This will use the current:

• transform, to transform the opposite corner (rotation is not recommended).
• clipping_rectangle
• fill_color
• border_size
• border_color
• corner_shapes

draw_box_with_border_outside()

void tt::draw_context::draw_box_with_border_outside ( rectangle rectangle, color fill_color, color line_color, float line_width = 1.0, tt::corner_shapes corner_shapes = tt::corner_shapes{} ) const

inlinenoexcept

Draw an axis aligned box This function will expand to include the size of the border outside the given rectangle.

This will make the border be drawn sharply.

This will also adjust rounded corners to the shrunk box.

This function will draw the given box. This will use the current:

• transform, to transform the opposite corner (rotation is not recommended).
• clippingRectangle
• fillColor
• borderSize
• borderColor
• shadowSize
• cornerShapes

draw_filled_quad() [1/2]

void tt::draw_context::draw_filled_quad ( point3 p1, point3 p2, point3 p3, point3 p4, color fill_color ) const

inlinenoexcept

Draw a polygon with four corners of one color.

This function will draw a polygon between the four given points. This will use the current:

• transform, to transform each point.
• clippingRectangle
• fillColor

draw_filled_quad() [2/2]

void tt::draw_context::draw_filled_quad ( rectangle r, color fill_color ) const

inlinenoexcept

Draw a rectangle of one color.

This function will draw the given rectangle. This will use the current:

• transform, to transform each corner of the rectangle.
• clippingRectangle
• fillColor

draw_image()

void tt::draw_context::draw_image ( pipeline_image::Image & image, matrix3 image_transform ) const

inlinenoexcept

Draw an image This function will draw an image.

This will use the current:

• transform, to transform the image.
• clippingRectangle

draw_text()

void tt::draw_context::draw_text ( shaped_text const & text, std::optional< color > text_color = {}, matrix3 transform = geo::identity{} ) const

inlinenoexcept

Draw shaped text.

This function will draw the shaped text. The SDF-image-atlas needs to be prepared ahead of time. This will use the current:

• transform, to transform the shaped-text's bounding box
• clippingRectangle

Parameters

text	The shaped text to draw.
useContextColor	When true display the text in the context's color, if false use text style color

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The documentation for this class was generated from the following file:

• hikogui/src/ttauri/GUI/draw_context.hpp