DsRenderer is a class that implements all the drawing operations. More...

#include <ds_renderer.h>

Public Member Functions
void	setSurface (DsSurface &surface)
	Sets the underlying surface used for drawing.

DsSurface &	getSurface (void)
	Gets the underlying surface used for drawing.

void	pushClipRegion (DsRegion &region)
	Pushes a clipping region to the clipping region stack.

void	popClipRegion (void)
	Pops a clipping region from the clipping region stack.

void	unrollClipRegions (uint8_t level)
	Unrolls the clipping region stack back to a specific number of clip regions.

void	clearClipRegions (void)
	Clears all the clipping regions.

DsRenderer	newRenderer (DsSurface &surface)
	Creates a new child renderer for the specified surface.

void	setSupersampling (int32_t ss)
	Sets the supersampling factor.

void	drawLine (DsPoint p0, DsPoint p1, DsColor color)
	Draws a non-antialiased line of thickness 1 in between two points.

void	drawRectangle (DsRect rect, uint16_t thickness, DsColor color)
	Draws a rectangle with lines of specified thickness.

void	drawRoundedRectangle (DsRect rect, DsColor color, uint16_t corner_radius)
	Draws a non-antialiased rectangle with rounded corners using lines of thickness 1.

void	drawRoundedRectangle (DsRect rect, DsColor color, uint16_t corner_radius_tl, uint16_t corner_radius_tr, uint16_t corner_radius_br, uint16_t corner_radius_bl)
	Draws a non-antialiased rectangle with rounded corners using lines of thickness 1.

void	fillRectangle (DsRect rect, DsColor color)
	Fills a rectangle using the specified color.

void	fillRoundedRectangle (DsRect rect, DsColor color, uint16_t corner_radius)
	Fills a rectangle with rounded corners using the specified color.

void	fillRoundedRectangle (DsRect rect, DsColor color, uint16_t corner_radius_tl, uint16_t corner_radius_tr, uint16_t corner_radius_br, uint16_t corner_radius_bl)
	Fills a rectangle with rounded corners using the specified color.

void	drawPoly (const DsPoint *points, uint32_t np, DsColor color)
	Draws a non-antialiased closed polygon using lines of thickness 1.

void	fillPoly (const DsPoint *points, uint32_t np, DsColor color)
	Fills a non-antialiased closed polygon.

void	drawCircle (DsFPoint center, float radius, float thickness, DsColor color)
	Draws a non-antialiased circle of specified thickness.

void	fillCircle (DsFPoint center, float radius, DsColor color)
	Fills a non-antialiased circle.

void	drawEllipse (DsEllipse ellipse, float thickness, DsColor color)
	Draws a non-antialiased ellipse of specified thickness.

void	fillEllipse (DsEllipse ellipse, DsColor color)
	Fills a non-antialiased ellipse.

void	drawEllipseArc (DsEllipse ellipse, float thickness, float start_angle, float end_angle, DsColor color)
	Draws a non-antialiased ellipse arc of specified thickness.

void	fillEllipseArc (DsEllipse ellipse, float start_angle, float end_angle, DsColor color)
	Fills a non-antialiased ellipse arc.

void	drawCircleArc (DsFPoint center, float radius, float thickness, float start_angle, float end_angle, DsColor color)
	Draws a non-antialiased circle arc of specified thickness.

void	fillCircleArc (DsFPoint center, float radius, float start_angle, float end_angle, DsColor color)
	Fills a non-antialiased circle arc.

void	drawLineAA (const DsFPoint &p0, const DsFPoint &p1, float thickness, DsColor color)
	Draws an antialiased line of specified thickness between two points.

void	drawPolyAA (const DsFPoint *points, uint32_t np, float thickness, DsColor color)
	Draws an antialiased closed polygon using lines of specified thickness.

void	fillPolyAA (const DsFPoint *points, uint32_t np, DsColor color)
	Fills an antialiased closed polygon.

void	fillRectangleAA (DsFRect rect, DsColor color)
	Fills an antialiased rectangle using the specified color.

void	drawRoundedRectangleAA (DsFRect rect, DsColor color, float thickness, float corner_radius)
	Draws an antialiased rectangle with rounded corners and lines of specified thickness.

void	drawRoundedRectangleAA (DsFRect rect, DsColor color, float thickness, float corner_radius_tl, float corner_radius_tr, float corner_radius_br, float corner_radius_bl)
	Draws an antialiased rectangle with rounded corners and lines of specified thickness.

void	fillRoundedRectangleAA (DsFRect rect, DsColor color, float corner_radius)
	Fills an antialiased rectangle with rounded corners using the specified color.

void	fillRoundedRectangleAA (DsFRect rect, DsColor color, float corner_radius_tl, float corner_radius_tr, float corner_radius_br, float corner_radius_bl)
	Fills an antialiased rectangle with rounded corners using the specified color.

void	drawEllipseAA (DsEllipse ellipse, float thickness, DsColor color)
	Draws an antialiased ellipse of specified thickness.

void	fillEllipseAA (DsEllipse ellipse, DsColor color)
	Fills an antialiased ellipse.

void	drawCircleAA (DsFPoint center, float radius, float thickness, DsColor color)
	Draws an antialiased circle of specified thickness.

void	fillCircleAA (DsFPoint center, float radius, DsColor color)
	Fills an antialiased circle.

void	drawEllipseArcAA (DsEllipse ellipse, float thickness, float start, float end, DsColor color)
	Draws an antialiased ellipse arc of specified thickness.

void	fillEllipseArcAA (DsEllipse ellipse, float start, float end, DsColor color)
	Fills an antialiased ellipse arc.

void	drawCircleArcAA (DsFPoint center, float radius, float thickness, float start, float end, DsColor color)
	Draws an antialiased circle arc of specified thickness.

void	fillCircleArcAA (DsFPoint center, float radius, float start, float end, DsColor color)
	Fills an antialiased circle arc.

DsRect	renderText (DsPoint pos, const ds_bitmap_font_t font, DsColor color, const char text, size_t length=DsString::npos)
	Renders text.

DsRect	renderMultilineText (DsPoint pos, const ds_bitmap_font_t font, DsColor color, const DsAlignment &line_alignment, float row_spacing, const char text, size_t length=DsString::npos)
	Renders multiline text. It does this by interpreting the CR and LF characters.

DsRect	renderTextAligned (const DsRect &boundary, const DsAlignment &alignment, const DsPoint &offset, const ds_bitmap_font_t font, DsColor color, const char text, size_t length=DsString::npos)
	Renders text in aligned mode.

DsRect	renderMultilineTextAligned (const DsRect &boundary, const DsAlignment &text_alignment, const DsPoint &offset, const ds_bitmap_font_t font, DsColor color, const DsAlignment &line_alignment, float row_spacing, const char text, size_t length=DsString::npos)
	Renders multiline text in aligned mode. It does this by interpreting the CR and LF characters.

DsRect	renderTextCentered (DsPoint pos, const ds_bitmap_font_t font, DsColor color, const char text, size_t length=DsString::npos)
	Renders text centered on a point.

DsRect	renderMultilineTextCentered (DsPoint pos, const ds_bitmap_font_t font, DsColor color, const DsAlignment &line_alignment, float row_spacing, const char text, size_t length=DsString::npos)
	Renders multiline text centered on a point. It does this by interpreting the CR and LF characters.

void	moveClipRegions (const DsFPoint &offset)

Static Public Member Functions
static bool	clipLine (const DsRect &bounds, int32_t &x0, int32_t &y0, int32_t &x1, int32_t &y1)

Friends
class	DsScreen

Detailed Description

DsRenderer is a class that implements all the drawing operations.

DsRenderer has member functions which perform both antialiased and non-antialiased drawing. The rendered holds a reference to a DsSurface which is the destination for all drawing operations. Use setSurface() / getSurface() to set and get the drawing surface. The antialiasing supersampling level can be set using the setSupersampling() member function.

Member Function Documentation

◆ drawCircle()

void DsRenderer::drawCircle	(	DsFPoint	center,
		float	radius,
		float	thickness,
		DsColor	color
	)

inline

Draws a non-antialiased circle of specified thickness.

Parameters

center	Coordinate of the center
radius	Radius in pixels
thickness	Thickness in pixels
color	Color to use

◆ drawCircleAA()

void DsRenderer::drawCircleAA	(	DsFPoint	center,
		float	radius,
		float	thickness,
		DsColor	color
	)

inline

Draws an antialiased circle of specified thickness.

Parameters

center	Coordinate of the center
radius	Radius in pixels
thickness	Thickness in pixels
color	Color to use

◆ drawCircleArc()

void DsRenderer::drawCircleArc	(	DsFPoint	center,
		float	radius,
		float	thickness,
		float	start_angle,
		float	end_angle,
		DsColor	color
	)

inline

Draws a non-antialiased circle arc of specified thickness.

Parameters

center	Coordinate of the center
radius	Radius in pixels
thickness	Thickness in pixels
start_angle	Start angle in degrees
end_angle	End angle in degrees
color	Color to use

◆ drawCircleArcAA()

void DsRenderer::drawCircleArcAA	(	DsFPoint	center,
		float	radius,
		float	thickness,
		float	start,
		float	end,
		DsColor	color
	)

inline

Draws an antialiased circle arc of specified thickness.

Parameters

center	Coordinate of the center
radius	Radius in pixels
thickness	Thickness in pixels
start	Start angle in degrees
end	End angle in degrees
color	Color to use

◆ drawEllipse()

void DsRenderer::drawEllipse	(	DsEllipse	ellipse,
		float	thickness,
		DsColor	color
	)

Draws a non-antialiased ellipse of specified thickness.

The ellipse can only be drawed in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
thickness	Thickness in pixels
color	Color to use

◆ drawEllipseAA()

void DsRenderer::drawEllipseAA	(	DsEllipse	ellipse,
		float	thickness,
		DsColor	color
	)

Draws an antialiased ellipse of specified thickness.

The ellipse can only be drawed in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
thickness	Thickness in pixels
color	Color to use

◆ drawEllipseArc()

void DsRenderer::drawEllipseArc	(	DsEllipse	ellipse,
		float	thickness,
		float	start_angle,
		float	end_angle,
		DsColor	color
	)

Draws a non-antialiased ellipse arc of specified thickness.

The ellipse arc can only be drawed in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
thickness	Thickness in pixels
start_angle	Start angle in degrees
end_angle	End angle in degrees
color	Color to use

◆ drawEllipseArcAA()

void DsRenderer::drawEllipseArcAA	(	DsEllipse	ellipse,
		float	thickness,
		float	start,
		float	end,
		DsColor	color
	)

Draws an antialiased ellipse arc of specified thickness.

The ellipse arc can only be drawed in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
thickness	Thickness in pixels
start	Start angle in degrees
end	End angle in degrees
color	Color to use

◆ drawLine()

void DsRenderer::drawLine	(	DsPoint	p0,
		DsPoint	p1,
		DsColor	color
	)

Draws a non-antialiased line of thickness 1 in between two points.

Parameters

p0	First point
p1	Second point
color	Color to use

◆ drawLineAA()

void DsRenderer::drawLineAA	(	const DsFPoint &	p0,
		const DsFPoint &	p1,
		float	thickness,
		DsColor	color
	)

Draws an antialiased line of specified thickness between two points.

Parameters

p0	First point
p1	Second point
thickness	Thickness in pixels
color	Color to use

◆ drawPoly()

void DsRenderer::drawPoly	(	const DsPoint *	points,
		uint32_t	np,
		DsColor	color
	)

Draws a non-antialiased closed polygon using lines of thickness 1.

Parameters

points	Pointer to an array of DsPoint objects defining the vertices
np	Number of points in the "points" array (minimum 3)
color	Color to use

◆ drawPolyAA()

void DsRenderer::drawPolyAA	(	const DsFPoint *	points,
		uint32_t	np,
		float	thickness,
		DsColor	color
	)

Draws an antialiased closed polygon using lines of specified thickness.

Parameters

points	Pointer to an array of DsFPoint objects defining the vertices
np	Number of points in the "points" array (minimum 3)
thickness	Line thickness in pixels
color	Color to use

◆ drawRectangle()

void DsRenderer::drawRectangle	(	DsRect	rect,
		uint16_t	thickness,
		DsColor	color
	)

Draws a rectangle with lines of specified thickness.

The rectangle size applies to the outside of the lines (in case the line thickness is higher than 1).

Parameters

rect	The rectangle to draw
thickness	Thickness in pixels of the lines used for drawing the rectangle
color	Color to use

◆ drawRoundedRectangle() [1/2]

void DsRenderer::drawRoundedRectangle	(	DsRect	rect,
		DsColor	color,
		uint16_t	corner_radius
	)

inline

Draws a non-antialiased rectangle with rounded corners using lines of thickness 1.

Parameters

rect	The rectangle to draw
color	Color to use
corner_radius	Corner radius

◆ drawRoundedRectangle() [2/2]

void DsRenderer::drawRoundedRectangle	(	DsRect	rect,
		DsColor	color,
		uint16_t	corner_radius_tl,
		uint16_t	corner_radius_tr,
		uint16_t	corner_radius_br,
		uint16_t	corner_radius_bl
	)

Draws a non-antialiased rectangle with rounded corners using lines of thickness 1.

Parameters

rect	The rectangle to draw
color	Color to use
corner_radius_tl	Top left corner radius
corner_radius_tr	Top right corner radius
corner_radius_br	Bottom right corner radius
corner_radius_bl	Bottom left corner radius

◆ drawRoundedRectangleAA() [1/2]

void DsRenderer::drawRoundedRectangleAA	(	DsFRect	rect,
		DsColor	color,
		float	thickness,
		float	corner_radius
	)

inline

Draws an antialiased rectangle with rounded corners and lines of specified thickness.

Parameters

rect	The rectangle to draw
color	Color to use
thickness	Thickness in pixels of the lines used for drawing the rectangle
corner_radius	Corner radius

◆ drawRoundedRectangleAA() [2/2]

void DsRenderer::drawRoundedRectangleAA	(	DsFRect	rect,
		DsColor	color,
		float	thickness,
		float	corner_radius_tl,
		float	corner_radius_tr,
		float	corner_radius_br,
		float	corner_radius_bl
	)

Draws an antialiased rectangle with rounded corners and lines of specified thickness.

Parameters

rect	The rectangle to draw
color	Color to use
thickness	Thickness in pixels of the lines used for drawing the rectangle
corner_radius_tl	Top left corner radius
corner_radius_tr	Top right corner radius
corner_radius_br	Bottom right corner radius
corner_radius_bl	Bottom left corner radius

◆ fillCircle()

void DsRenderer::fillCircle	(	DsFPoint	center,
		float	radius,
		DsColor	color
	)

inline

Fills a non-antialiased circle.

Parameters

center	Coordinate of the center
radius	Radius in pixels
color	Color to use

◆ fillCircleAA()

void DsRenderer::fillCircleAA	(	DsFPoint	center,
		float	radius,
		DsColor	color
	)

inline

Fills an antialiased circle.

Parameters

center	Coordinate of the center
radius	Radius in pixels
color	Color to use

◆ fillCircleArc()

void DsRenderer::fillCircleArc	(	DsFPoint	center,
		float	radius,
		float	start_angle,
		float	end_angle,
		DsColor	color
	)

inline

Fills a non-antialiased circle arc.

Parameters

center	Coordinate of the center
radius	Radius in pixels
start_angle	Start angle in degrees
end_angle	End angle in degrees
color	Color to use

◆ fillCircleArcAA()

void DsRenderer::fillCircleArcAA	(	DsFPoint	center,
		float	radius,
		float	start,
		float	end,
		DsColor	color
	)

inline

Fills an antialiased circle arc.

Parameters

center	Coordinate of the center
radius	Radius in pixels
start	Start angle in degrees
end	End angle in degrees
color	Color to use

◆ fillEllipse()

void DsRenderer::fillEllipse	(	DsEllipse	ellipse,
		DsColor	color
	)

Fills a non-antialiased ellipse.

The ellipse can only be filled in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
color	Color to use

◆ fillEllipseAA()

void DsRenderer::fillEllipseAA	(	DsEllipse	ellipse,
		DsColor	color
	)

Fills an antialiased ellipse.

The ellipse can only be filled in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
color	Color to use

◆ fillEllipseArc()

void DsRenderer::fillEllipseArc	(	DsEllipse	ellipse,
		float	start_angle,
		float	end_angle,
		DsColor	color
	)

Fills a non-antialiased ellipse arc.

The ellipse arc can only be drawed in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
start_angle	Start angle in degrees
end_angle	End angle in degrees
color	Color to use

◆ fillEllipseArcAA()

void DsRenderer::fillEllipseArcAA	(	DsEllipse	ellipse,
		float	start,
		float	end,
		DsColor	color
	)

Fills an antialiased ellipse arc.

The ellipse arc can only be drawed in a fixed rotation, by specifying the X and Y radii.

Parameters

ellipse	DsEllipse object describing the geometry of the ellipse
start	Start angle in degrees
end	End angle in degrees
color	Color to use

◆ fillPoly()

void DsRenderer::fillPoly	(	const DsPoint *	points,
		uint32_t	np,
		DsColor	color
	)

Fills a non-antialiased closed polygon.

Parameters

points	Pointer to an array of DsPoint objects defining the vertices
np	Number of points in the "points" array (minumum 3)
color	Color to use

◆ fillPolyAA()

void DsRenderer::fillPolyAA	(	const DsFPoint *	points,
		uint32_t	np,
		DsColor	color
	)

Fills an antialiased closed polygon.

Parameters

points	Pointer to an array of DsFPoint objects defining the vertices
np	Number of points in the "points" array (minimum 3)
color	Color to use

◆ fillRectangle()

void DsRenderer::fillRectangle	(	DsRect	rect,
		DsColor	color
	)

Fills a rectangle using the specified color.

Parameters

rect	The rectangle to draw
color	Color to use

◆ fillRectangleAA()

void DsRenderer::fillRectangleAA	(	DsFRect	rect,
		DsColor	color
	)

inline

Fills an antialiased rectangle using the specified color.

Parameters

rect	The rectangle to draw
color	Color to use

◆ fillRoundedRectangle() [1/2]

void DsRenderer::fillRoundedRectangle	(	DsRect	rect,
		DsColor	color,
		uint16_t	corner_radius
	)

inline

Fills a rectangle with rounded corners using the specified color.

Parameters

rect	The rectangle to draw
color	Color to use
corner_radius	Corner radius

◆ fillRoundedRectangle() [2/2]

void DsRenderer::fillRoundedRectangle	(	DsRect	rect,
		DsColor	color,
		uint16_t	corner_radius_tl,
		uint16_t	corner_radius_tr,
		uint16_t	corner_radius_br,
		uint16_t	corner_radius_bl
	)

Fills a rectangle with rounded corners using the specified color.

Parameters

rect	The rectangle to draw
color	Color to use
corner_radius_tl	Top left corner radius
corner_radius_tr	Top right corner radius
corner_radius_br	Bottom right corner radius
corner_radius_bl	Bottom left corner radius

◆ fillRoundedRectangleAA() [1/2]

void DsRenderer::fillRoundedRectangleAA	(	DsFRect	rect,
		DsColor	color,
		float	corner_radius
	)

inline

Fills an antialiased rectangle with rounded corners using the specified color.

Parameters

rect	The rectangle to draw
color	Color to use
corner_radius	Corner radius

◆ fillRoundedRectangleAA() [2/2]

void DsRenderer::fillRoundedRectangleAA	(	DsFRect	rect,
		DsColor	color,
		float	corner_radius_tl,
		float	corner_radius_tr,
		float	corner_radius_br,
		float	corner_radius_bl
	)

Fills an antialiased rectangle with rounded corners using the specified color.

Parameters

rect	The rectangle to draw
color	Color to use
corner_radius_tl	Top left corner radius
corner_radius_tr	Top right corner radius
corner_radius_br	Bottom right corner radius
corner_radius_bl	Bottom left corner radius

◆ getSurface()

DsSurface & DsRenderer::getSurface ( void )

Gets the underlying surface used for drawing.

Returns: The DsSurface object

◆ newRenderer()

DsRenderer DsRenderer::newRenderer ( DsSurface & surface )

Creates a new child renderer for the specified surface.

The new child rendered shares all resources with the parent renderer.

Parameters

surface The DsSurface object

◆ pushClipRegion()

void DsRenderer::pushClipRegion ( DsRegion & region )

Pushes a clipping region to the clipping region stack.

Parameters

region Clipping region. This is a class derived from DsRegion.

◆ renderMultilineText()

DsRect DsRenderer::renderMultilineText	(	DsPoint	pos,
		const ds_bitmap_font_t *	font,
		DsColor	color,
		const DsAlignment &	line_alignment,
		float	row_spacing,
		const char *	text,
		size_t	length = `DsString::npos`
	)

Renders multiline text. It does this by interpreting the CR and LF characters.

Parameters

pos	Coordinate of the rendering operation
font	Pointer to the font to use
color	Text color
line_alignment	The line alignment mode
row_spacing	Row spacing multiplier (1.0 means keep original font row spacing)
text	Null termianted string representing the text to render
length	Maximum number of characters to render (default is all characters)

Returns: Rectangle enclosing the rendered text

◆ renderMultilineTextAligned()

DsRect DsRenderer::renderMultilineTextAligned	(	const DsRect &	boundary,
		const DsAlignment &	text_alignment,
		const DsPoint &	offset,
		const ds_bitmap_font_t *	font,
		DsColor	color,
		const DsAlignment &	line_alignment,
		float	row_spacing,
		const char *	text,
		size_t	length = `DsString::npos`
	)

Renders multiline text in aligned mode. It does this by interpreting the CR and LF characters.

Parameters

boundary	Rectangle representing the boundary for rendering the text
alignment	The alighment mode inside the boundary
ofset	The offset to apply to the aligned text
font	Pointer to the font to use
color	Text color
line_alignment	The line alignment mode
row_spacing	Row spacing multiplier (1.0 means keep original font row spacing)
text	Null termianted string representing the text to render
length	Maximum number of characters to render (default is all characters)

Returns: Rectangle enclosing the rendered text

◆ renderMultilineTextCentered()

DsRect DsRenderer::renderMultilineTextCentered	(	DsPoint	pos,
		const ds_bitmap_font_t *	font,
		DsColor	color,
		const DsAlignment &	line_alignment,
		float	row_spacing,
		const char *	text,
		size_t	length = `DsString::npos`
	)

Renders multiline text centered on a point. It does this by interpreting the CR and LF characters.

Parameters

pos	The position to center the text on
font	Pointer to the font to use
color	Text color
line_alignment	The line alignment mode
row_spacing	Row spacing multiplier (1.0 means keep original font row spacing)
text	Null termianted string representing the text to render
length	Maximum number of characters to render (default is all characters)

Returns: Rectangle enclosing the rendered text

◆ renderText()

DsRect DsRenderer::renderText	(	DsPoint	pos,
		const ds_bitmap_font_t *	font,
		DsColor	color,
		const char *	text,
		size_t	length = `DsString::npos`
	)

Renders text.

Parameters

pos	Coordinate of the rendering operation
font	Pointer to the font to use
color	Text color
text	Null termianted string representing the text to render
length	Maximum number of characters to render (default is all characters)

Returns: Rectangle enclosing the rendered text

◆ renderTextAligned()

DsRect DsRenderer::renderTextAligned	(	const DsRect &	boundary,
		const DsAlignment &	alignment,
		const DsPoint &	offset,
		const ds_bitmap_font_t *	font,
		DsColor	color,
		const char *	text,
		size_t	length = `DsString::npos`
	)

Renders text in aligned mode.

Parameters

boundary	Rectangle representing the boundary for rendering the text
alignment	The alighment mode inside the boundary
ofset	The offset to apply to the aligned text
font	Pointer to the font to use
color	Text color
text	Null termianted string representing the text to render
length	Maximum number of characters to render (default is all characters)

Returns: Rectangle enclosing the rendered text

◆ renderTextCentered()

DsRect DsRenderer::renderTextCentered	(	DsPoint	pos,
		const ds_bitmap_font_t *	font,
		DsColor	color,
		const char *	text,
		size_t	length = `DsString::npos`
	)

Renders text centered on a point.

Parameters

pos	The position to center the text on
font	Pointer to the font to use
color	Text color
text	Null termianted string representing the text to render
length	Maximum number of characters to render (default is all characters)

Returns: Rectangle enclosing the rendered text

◆ setSupersampling()

void DsRenderer::setSupersampling ( int32_t ss )

Sets the supersampling factor.

Parameters

ss	Supersampling factor [1 .. 5]. A higher factor produces better antialiased results but requires more processing power. The default value is 3.

◆ setSurface()

void DsRenderer::setSurface ( DsSurface & surface )

Sets the underlying surface used for drawing.

Parameters

surface The DsSurface object

◆ unrollClipRegions()

void DsRenderer::unrollClipRegions ( uint8_t level )

Unrolls the clipping region stack back to a specific number of clip regions.

Parameters

level Number of levels to leave in the stack

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

inc/ds_renderer.h

Public Member Functions

Static Public Member Functions

Friends

Detailed Description

Member Function Documentation

◆ drawCircle()

◆ drawCircleAA()

◆ drawCircleArc()

◆ drawCircleArcAA()

◆ drawEllipse()

◆ drawEllipseAA()

◆ drawEllipseArc()

◆ drawEllipseArcAA()

◆ drawLine()

◆ drawLineAA()

◆ drawPoly()

◆ drawPolyAA()

◆ drawRectangle()

◆ drawRoundedRectangle() [1/2]

◆ drawRoundedRectangle() [2/2]

◆ drawRoundedRectangleAA() [1/2]

◆ drawRoundedRectangleAA() [2/2]

◆ fillCircle()

◆ fillCircleAA()

◆ fillCircleArc()

◆ fillCircleArcAA()

◆ fillEllipse()

◆ fillEllipseAA()

◆ fillEllipseArc()

◆ fillEllipseArcAA()

◆ fillPoly()

◆ fillPolyAA()

◆ fillRectangle()

◆ fillRectangleAA()

◆ fillRoundedRectangle() [1/2]

◆ fillRoundedRectangle() [2/2]

◆ fillRoundedRectangleAA() [1/2]

◆ fillRoundedRectangleAA() [2/2]

◆ getSurface()

◆ newRenderer()

◆ pushClipRegion()

◆ renderMultilineText()

◆ renderMultilineTextAligned()

◆ renderMultilineTextCentered()

◆ renderText()

◆ renderTextAligned()

◆ renderTextCentered()

◆ setSupersampling()

◆ setSurface()

◆ unrollClipRegions()