renderer

package
v0.0.0-...-0b4b87a Latest Latest
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 Go to latest Published: Feb 18, 2019 License: MIT Imports: 22 Imported by: 0

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Index

Constants

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Variables

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Functions

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Types

type AreaMapping 

type AreaMapping struct {
	Area    image.Rectangle
	Content *RenderableDomElement
}

type BoxBorder 

type BoxBorder struct {
	BoxOffset
	Color color.Color
	Style string
}

type BoxBorders 

type BoxBorders struct {
	Top    BoxBorder
	Bottom BoxBorder
	Left   BoxBorder
	Right  BoxBorder
}

type BoxMargin 

type BoxMargin BoxOffset

type BoxMargins 

type BoxMargins struct {
	Top    BoxMargin
	Bottom BoxMargin
	Left   BoxMargin
	Right  BoxMargin
}

type BoxOffset 

type BoxOffset struct {
	Width int
}

type BoxPadding 

type BoxPadding BoxOffset

type BoxPaddings 

type BoxPaddings struct {
	Top    BoxPadding
	Bottom BoxPadding
	Left   BoxPadding
	Right  BoxPadding
}

type DynamicMemoryDrawer 

type DynamicMemoryDrawer struct {
	// contains filtered or unexported fields
}

func NewDynamicMemoryDrawer 

func NewDynamicMemoryDrawer(r image.Rectangle) *DynamicMemoryDrawer

func (*DynamicMemoryDrawer) At 

func (d *DynamicMemoryDrawer) At(x, y int) color.Color

func (*DynamicMemoryDrawer) Bounds 

func (d *DynamicMemoryDrawer) Bounds() image.Rectangle

func (*DynamicMemoryDrawer) ColorModel 

func (d *DynamicMemoryDrawer) ColorModel() color.Model

func (*DynamicMemoryDrawer) GrowBounds 

func (d *DynamicMemoryDrawer) GrowBounds(r image.Rectangle)

func (*DynamicMemoryDrawer) Set 

func (d *DynamicMemoryDrawer) Set(x, y int, c color.Color)

type FloatStack 

type FloatStack []*RenderableDomElement

A FloatStack represents the floating elements that haven't yet been cleared. There's generally two FloatStacks, one for the left elements, and one for the right elements. Once dot advances past the FloatStack, they're removed from the stack.

func (FloatStack) ClearFloats 

func (f FloatStack) ClearFloats(dot image.Point) FloatStack

Remove any floats that are past dot from the float stack and return the floats that have not yet been cleared.

func (FloatStack) MaxX 

func (f FloatStack) MaxX(loc image.Point) int

MaxX returns the highest X coordinate in the FloatStack, at height loc. This is mostly used to get the left edge of left floats at a certain height.

func (FloatStack) NextFloatHeight 

func (f FloatStack) NextFloatHeight() int

func (FloatStack) WidthAt 

func (f FloatStack) WidthAt(loc image.Point) int

type ImageMap 

type ImageMap []AreaMapping

func NewImageMap 

func NewImageMap() ImageMap

func (*ImageMap) Add 

func (imap *ImageMap) Add(el *RenderableDomElement, location image.Rectangle)

func (ImageMap) At 

func (imap ImageMap) At(x, y int) *RenderableDomElement

type Page 

type Page struct {
	Content    *RenderableDomElement
	Background color.Color
	URL        *url.URL
	// contains filtered or unexported fields
}

Represents a page to be rendered

func LoadPage 

func LoadPage(r io.Reader, loader net.URLReader, urlContext *url.URL) Page

Parses an io.Reader into a Page object.

func (*Page) ReapplyStyles 

func (p *Page) ReapplyStyles()

type RenderableDomElement 

type RenderableDomElement struct {
	*dom.Element
	Styles            *css.StyledElement
	ConditionalStyles struct {
		Unconditional          *css.StyledElement
		FirstLine, FirstLetter *css.StyledElement
	}

	Parent      *RenderableDomElement
	FirstChild  *RenderableDomElement
	NextSibling *RenderableDomElement
	PrevSibling *RenderableDomElement

	CSSOuterBox    image.Image
	ContentOverlay image.Image

	// The location within the parent to draw the OverlayedContent
	//DrawRectangle    image.Rectangle
	//BoxOrigin        image.Point
	BoxDrawRectangle    image.Rectangle
	BoxContentRectangle image.Rectangle

	ImageMap     ImageMap
	PageLocation *url.URL

	State css.State
	// contains filtered or unexported fields
}

func (*RenderableDomElement) FontVariant 

func (e *RenderableDomElement) FontVariant() string

func (RenderableDomElement) GetBackgroundColor 

func (e RenderableDomElement) GetBackgroundColor() color.Color

func (*RenderableDomElement) GetBackgroundImage 

func (e *RenderableDomElement) GetBackgroundImage() image.Image

func (*RenderableDomElement) GetBackgroundRepeat 

func (e *RenderableDomElement) GetBackgroundRepeat() string

func (RenderableDomElement) GetBorderBottomColor 

func (e RenderableDomElement) GetBorderBottomColor() color.Color

func (RenderableDomElement) GetBorderBottomStyle 

func (e RenderableDomElement) GetBorderBottomStyle() string

func (RenderableDomElement) GetBorderBottomWidth 

func (e RenderableDomElement) GetBorderBottomWidth() int

func (RenderableDomElement) GetBorderLeftColor 

func (e RenderableDomElement) GetBorderLeftColor() color.Color

func (RenderableDomElement) GetBorderLeftStyle 

func (e RenderableDomElement) GetBorderLeftStyle() string

func (RenderableDomElement) GetBorderLeftWidth 

func (e RenderableDomElement) GetBorderLeftWidth() int

func (RenderableDomElement) GetBorderRightColor 

func (e RenderableDomElement) GetBorderRightColor() color.Color

func (RenderableDomElement) GetBorderRightStyle 

func (e RenderableDomElement) GetBorderRightStyle() string

func (RenderableDomElement) GetBorderRightWidth 

func (e RenderableDomElement) GetBorderRightWidth() int

func (RenderableDomElement) GetBorderTopColor 

func (e RenderableDomElement) GetBorderTopColor() color.Color

func (RenderableDomElement) GetBorderTopStyle 

func (e RenderableDomElement) GetBorderTopStyle() string

func (RenderableDomElement) GetBorderTopWidth 

func (e RenderableDomElement) GetBorderTopWidth() int

func (RenderableDomElement) GetColor 

func (e RenderableDomElement) GetColor() color.Color

func (RenderableDomElement) GetContainerWidth 

func (e RenderableDomElement) GetContainerWidth(containerWidth int) int

func (RenderableDomElement) GetDisplayProp 

func (e RenderableDomElement) GetDisplayProp() string

func (RenderableDomElement) GetFloat 

func (e RenderableDomElement) GetFloat() string

func (*RenderableDomElement) GetFontFace 

func (e *RenderableDomElement) GetFontFace(fsize int) font.Face

func (*RenderableDomElement) GetFontFamily 

func (e *RenderableDomElement) GetFontFamily() css.FontFamily

func (*RenderableDomElement) GetFontSize 

func (e *RenderableDomElement) GetFontSize() int

func (*RenderableDomElement) GetFontStyle 

func (e *RenderableDomElement) GetFontStyle() font.Style

func (*RenderableDomElement) GetFontWeight 

func (e *RenderableDomElement) GetFontWeight() font.Weight

func (RenderableDomElement) GetHeight 

func (e RenderableDomElement) GetHeight() int

func (*RenderableDomElement) GetLineHeight 

func (e *RenderableDomElement) GetLineHeight() int

func (*RenderableDomElement) GetListStyleType 

func (e *RenderableDomElement) GetListStyleType() string

func (RenderableDomElement) GetMarginBottomSize 

func (e RenderableDomElement) GetMarginBottomSize() int

func (RenderableDomElement) GetMarginLeftSize 

func (e RenderableDomElement) GetMarginLeftSize() int

func (RenderableDomElement) GetMarginRightSize 

func (e RenderableDomElement) GetMarginRightSize() int

func (RenderableDomElement) GetMarginTopSize 

func (e RenderableDomElement) GetMarginTopSize() int

func (RenderableDomElement) GetMaxHeight 

func (e RenderableDomElement) GetMaxHeight() int

func (RenderableDomElement) GetMaxWidth 

func (e RenderableDomElement) GetMaxWidth() int

func (RenderableDomElement) GetMinHeight 

func (e RenderableDomElement) GetMinHeight() int

func (RenderableDomElement) GetMinWidth 

func (e RenderableDomElement) GetMinWidth() int

func (*RenderableDomElement) GetOverflow 

func (e *RenderableDomElement) GetOverflow() string

func (RenderableDomElement) GetPaddingBottom 

func (e RenderableDomElement) GetPaddingBottom() int

func (RenderableDomElement) GetPaddingLeft 

func (e RenderableDomElement) GetPaddingLeft() int

func (RenderableDomElement) GetPaddingRight 

func (e RenderableDomElement) GetPaddingRight() int

func (RenderableDomElement) GetPaddingTop 

func (e RenderableDomElement) GetPaddingTop() int

func (*RenderableDomElement) GetTextDecoration 

func (e *RenderableDomElement) GetTextDecoration() string

func (RenderableDomElement) GetTextIndent 

func (e RenderableDomElement) GetTextIndent(containerWidth int) int

func (RenderableDomElement) GetTextTransform 

func (e RenderableDomElement) GetTextTransform() string

func (*RenderableDomElement) GetVerticalAlign 

func (e *RenderableDomElement) GetVerticalAlign() string

func (*RenderableDomElement) GetWhiteSpace 

func (e *RenderableDomElement) GetWhiteSpace() string

func (RenderableDomElement) GetWidth 

func (e RenderableDomElement) GetWidth() int

func (*RenderableDomElement) InvalidateLayout 

func (e *RenderableDomElement) InvalidateLayout()

func (*RenderableDomElement) Layout 

func (e *RenderableDomElement) Layout(ctx context.Context, viewportSize image.Point) error

Lays out the element into a viewport of size viewportSize.

func (*RenderableDomElement) RenderInto 

func (e *RenderableDomElement) RenderInto(ctx context.Context, dst draw.Image, cursor image.Point) error

func (RenderableDomElement) String 

func (e RenderableDomElement) String() string

func (*RenderableDomElement) Walk 

func (e *RenderableDomElement) Walk(callback func(*RenderableDomElement))

type Renderer 

type Renderer interface {
	// Lays out an element in preparation for rendering
	Layout(ctx context.Context, viewportSize image.Point) error

	// Draws the element into dst, scrolled so that the top left of the
	// image is at cursor. Layout must be called before RenderInto.
	RenderInto(ctx context.Context, dst draw.Image, cursor image.Point) error
}

A RenderableElement is something that can be rendered to an image.

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