mirror of https://github.com/anoshenko/rui.git
Refactoring
This commit is contained in:
Alexei Anoshenko
parent
bed6c1bf41
commit
f81ffe6bed
192
background.go
192
background.go
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@ -2,62 +2,9 @@ package rui
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import (
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import (
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"fmt"
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"fmt"
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"strings"
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)
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)
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// Constants related to view's background description
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const (
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const (
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// NoRepeat is value of the Repeat property of an background image:
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// The image is not repeated (and hence the background image painting area
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// will not necessarily be entirely covered). The position of the non-repeated
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// background image is defined by the background-position CSS property.
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NoRepeat = 0
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// RepeatXY is value of the Repeat property of an background image:
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// The image is repeated as much as needed to cover the whole background
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// image painting area. The last image will be clipped if it doesn't fit.
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RepeatXY = 1
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// RepeatX is value of the Repeat property of an background image:
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// The image is repeated horizontally as much as needed to cover
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// the whole width background image painting area. The image is not repeated vertically.
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// The last image will be clipped if it doesn't fit.
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RepeatX = 2
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// RepeatY is value of the Repeat property of an background image:
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// The image is repeated vertically as much as needed to cover
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// the whole height background image painting area. The image is not repeated horizontally.
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// The last image will be clipped if it doesn't fit.
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RepeatY = 3
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// RepeatRound is value of the Repeat property of an background image:
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// As the allowed space increases in size, the repeated images will stretch (leaving no gaps)
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// until there is room (space left >= half of the image width) for another one to be added.
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// When the next image is added, all of the current ones compress to allow room.
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RepeatRound = 4
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// RepeatSpace is value of the Repeat property of an background image:
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// The image is repeated as much as possible without clipping. The first and last images
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// are pinned to either side of the element, and whitespace is distributed evenly between the images.
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RepeatSpace = 5
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// ScrollAttachment is value of the Attachment property of an background image:
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// The background is fixed relative to the element itself and does not scroll with its contents.
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// (It is effectively attached to the element's border.)
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ScrollAttachment = 0
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// FixedAttachment is value of the Attachment property of an background image:
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// The background is fixed relative to the viewport. Even if an element has
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// a scrolling mechanism, the background doesn't move with the element.
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FixedAttachment = 1
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// LocalAttachment is value of the Attachment property of an background image:
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// The background is fixed relative to the element's contents. If the element has a scrolling mechanism,
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// the background scrolls with the element's contents, and the background painting area
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// and background positioning area are relative to the scrollable area of the element
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// rather than to the border framing them.
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LocalAttachment = 2
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// BorderBox is the value of the following properties:
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// BorderBox is the value of the following properties:
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//
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//
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// * BackgroundClip - The background extends to the outside edge of the border (but underneath the border in z-ordering).
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// * BackgroundClip - The background extends to the outside edge of the border (but underneath the border in z-ordering).
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@ -111,10 +58,6 @@ type backgroundElement struct {
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dataProperty
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dataProperty
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}
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}
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type backgroundImage struct {
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backgroundElement
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}
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// NewBackgroundImage creates the new background image
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// NewBackgroundImage creates the new background image
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func createBackground(obj DataObject) BackgroundElement {
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func createBackground(obj DataObject) BackgroundElement {
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var result BackgroundElement = nil
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var result BackgroundElement = nil
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@ -148,141 +91,6 @@ func createBackground(obj DataObject) BackgroundElement {
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return result
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return result
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}
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}
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// NewBackgroundImage creates the new background image
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func NewBackgroundImage(params Params) BackgroundElement {
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result := new(backgroundImage)
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result.init()
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for tag, value := range params {
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result.Set(tag, value)
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}
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return result
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}
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func (image *backgroundImage) init() {
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image.backgroundElement.init()
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image.normalize = normalizeBackgroundImageTag
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image.supportedProperties = []PropertyName{
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Attachment, Width, Height, Repeat, ImageHorizontalAlign, ImageVerticalAlign, backgroundFit, Source,
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}
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}
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func (image *backgroundImage) Tag() string {
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return "image"
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}
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func (image *backgroundImage) Clone() BackgroundElement {
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result := NewBackgroundImage(nil)
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for tag, value := range image.properties {
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result.setRaw(tag, value)
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}
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return result
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}
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func normalizeBackgroundImageTag(tag PropertyName) PropertyName {
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tag = defaultNormalize(tag)
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switch tag {
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case "source":
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tag = Source
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case Fit:
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tag = backgroundFit
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case HorizontalAlign:
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tag = ImageHorizontalAlign
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case VerticalAlign:
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tag = ImageVerticalAlign
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}
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return tag
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}
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func (image *backgroundImage) cssStyle(session Session) string {
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if src, ok := imageProperty(image, Source, session); ok && src != "" {
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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buffer.WriteString(`url(`)
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buffer.WriteString(src)
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buffer.WriteRune(')')
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attachment, _ := enumProperty(image, Attachment, session, NoRepeat)
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values := enumProperties[Attachment].values
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if attachment > 0 && attachment < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[attachment])
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}
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align, _ := enumProperty(image, ImageHorizontalAlign, session, LeftAlign)
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values = enumProperties[ImageHorizontalAlign].values
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if align >= 0 && align < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[align])
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} else {
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buffer.WriteString(` left`)
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}
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align, _ = enumProperty(image, ImageVerticalAlign, session, TopAlign)
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values = enumProperties[ImageVerticalAlign].values
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if align >= 0 && align < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[align])
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} else {
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buffer.WriteString(` top`)
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}
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fit, _ := enumProperty(image, backgroundFit, session, NoneFit)
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values = enumProperties[backgroundFit].values
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if fit > 0 && fit < len(values) {
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buffer.WriteString(` / `)
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buffer.WriteString(values[fit])
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} else {
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width, _ := sizeProperty(image, Width, session)
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height, _ := sizeProperty(image, Height, session)
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if width.Type != Auto || height.Type != Auto {
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buffer.WriteString(` / `)
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buffer.WriteString(width.cssString("auto", session))
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buffer.WriteRune(' ')
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buffer.WriteString(height.cssString("auto", session))
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}
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}
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repeat, _ := enumProperty(image, Repeat, session, NoRepeat)
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values = enumProperties[Repeat].values
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if repeat >= 0 && repeat < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[repeat])
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} else {
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buffer.WriteString(` no-repeat`)
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}
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return buffer.String()
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}
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return ""
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}
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func (image *backgroundImage) writeString(buffer *strings.Builder, indent string) {
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image.writeToBuffer(buffer, indent, image.Tag(), []PropertyName{
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Source,
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Width,
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Height,
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ImageHorizontalAlign,
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ImageVerticalAlign,
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backgroundFit,
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Repeat,
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Attachment,
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})
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}
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func (image *backgroundImage) String() string {
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return runStringWriter(image)
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}
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func parseBackgroundValue(value any) []BackgroundElement {
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func parseBackgroundValue(value any) []BackgroundElement {
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switch value := value.(type) {
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switch value := value.(type) {
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@ -0,0 +1,198 @@
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package rui
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import (
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"strings"
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)
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// Constants related to view's background description
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const (
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// NoRepeat is value of the Repeat property of an background image:
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// The image is not repeated (and hence the background image painting area
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// will not necessarily be entirely covered). The position of the non-repeated
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// background image is defined by the background-position CSS property.
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NoRepeat = 0
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// RepeatXY is value of the Repeat property of an background image:
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// The image is repeated as much as needed to cover the whole background
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// image painting area. The last image will be clipped if it doesn't fit.
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RepeatXY = 1
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// RepeatX is value of the Repeat property of an background image:
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// The image is repeated horizontally as much as needed to cover
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// the whole width background image painting area. The image is not repeated vertically.
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// The last image will be clipped if it doesn't fit.
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RepeatX = 2
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// RepeatY is value of the Repeat property of an background image:
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// The image is repeated vertically as much as needed to cover
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// the whole height background image painting area. The image is not repeated horizontally.
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// The last image will be clipped if it doesn't fit.
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RepeatY = 3
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// RepeatRound is value of the Repeat property of an background image:
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// As the allowed space increases in size, the repeated images will stretch (leaving no gaps)
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// until there is room (space left >= half of the image width) for another one to be added.
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// When the next image is added, all of the current ones compress to allow room.
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RepeatRound = 4
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// RepeatSpace is value of the Repeat property of an background image:
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// The image is repeated as much as possible without clipping. The first and last images
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// are pinned to either side of the element, and whitespace is distributed evenly between the images.
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RepeatSpace = 5
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// ScrollAttachment is value of the Attachment property of an background image:
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// The background is fixed relative to the element itself and does not scroll with its contents.
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// (It is effectively attached to the element's border.)
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ScrollAttachment = 0
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// FixedAttachment is value of the Attachment property of an background image:
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// The background is fixed relative to the viewport. Even if an element has
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// a scrolling mechanism, the background doesn't move with the element.
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FixedAttachment = 1
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// LocalAttachment is value of the Attachment property of an background image:
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// The background is fixed relative to the element's contents. If the element has a scrolling mechanism,
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// the background scrolls with the element's contents, and the background painting area
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// and background positioning area are relative to the scrollable area of the element
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// rather than to the border framing them.
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LocalAttachment = 2
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)
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type backgroundImage struct {
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backgroundElement
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}
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// NewBackgroundImage creates the new background image
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func NewBackgroundImage(params Params) BackgroundElement {
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result := new(backgroundImage)
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result.init()
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for tag, value := range params {
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result.Set(tag, value)
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}
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return result
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}
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func (image *backgroundImage) init() {
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image.backgroundElement.init()
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image.normalize = normalizeBackgroundImageTag
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image.supportedProperties = []PropertyName{
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Attachment, Width, Height, Repeat, ImageHorizontalAlign, ImageVerticalAlign, backgroundFit, Source,
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}
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}
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func (image *backgroundImage) Tag() string {
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return "image"
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}
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func (image *backgroundImage) Clone() BackgroundElement {
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result := NewBackgroundImage(nil)
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for tag, value := range image.properties {
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result.setRaw(tag, value)
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}
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return result
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}
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func normalizeBackgroundImageTag(tag PropertyName) PropertyName {
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tag = defaultNormalize(tag)
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switch tag {
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case "source":
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tag = Source
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case Fit:
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tag = backgroundFit
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case HorizontalAlign:
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tag = ImageHorizontalAlign
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case VerticalAlign:
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tag = ImageVerticalAlign
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}
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return tag
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}
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func (image *backgroundImage) cssStyle(session Session) string {
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if src, ok := imageProperty(image, Source, session); ok && src != "" {
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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buffer.WriteString(`url(`)
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buffer.WriteString(src)
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buffer.WriteRune(')')
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attachment, _ := enumProperty(image, Attachment, session, NoRepeat)
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values := enumProperties[Attachment].values
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if attachment > 0 && attachment < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[attachment])
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}
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align, _ := enumProperty(image, ImageHorizontalAlign, session, LeftAlign)
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values = enumProperties[ImageHorizontalAlign].values
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if align >= 0 && align < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[align])
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} else {
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buffer.WriteString(` left`)
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}
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align, _ = enumProperty(image, ImageVerticalAlign, session, TopAlign)
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values = enumProperties[ImageVerticalAlign].values
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if align >= 0 && align < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[align])
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} else {
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buffer.WriteString(` top`)
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}
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fit, _ := enumProperty(image, backgroundFit, session, NoneFit)
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values = enumProperties[backgroundFit].values
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if fit > 0 && fit < len(values) {
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buffer.WriteString(` / `)
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buffer.WriteString(values[fit])
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} else {
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width, _ := sizeProperty(image, Width, session)
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height, _ := sizeProperty(image, Height, session)
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if width.Type != Auto || height.Type != Auto {
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buffer.WriteString(` / `)
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buffer.WriteString(width.cssString("auto", session))
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buffer.WriteRune(' ')
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buffer.WriteString(height.cssString("auto", session))
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}
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}
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repeat, _ := enumProperty(image, Repeat, session, NoRepeat)
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values = enumProperties[Repeat].values
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if repeat >= 0 && repeat < len(values) {
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buffer.WriteRune(' ')
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buffer.WriteString(values[repeat])
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} else {
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buffer.WriteString(` no-repeat`)
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}
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return buffer.String()
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}
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return ""
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}
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func (image *backgroundImage) writeString(buffer *strings.Builder, indent string) {
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image.writeToBuffer(buffer, indent, image.Tag(), []PropertyName{
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Source,
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Width,
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||||||
|
Height,
|
||||||
|
ImageHorizontalAlign,
|
||||||
|
ImageVerticalAlign,
|
||||||
|
backgroundFit,
|
||||||
|
Repeat,
|
||||||
|
Attachment,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
func (image *backgroundImage) String() string {
|
||||||
|
return runStringWriter(image)
|
||||||
|
}
|
||||||
|
|
@ -4,47 +4,29 @@ import "strings"
|
||||||
|
|
||||||
// Constants related to view's background gradient description
|
// Constants related to view's background gradient description
|
||||||
const (
|
const (
|
||||||
|
|
||||||
// ToTopGradient is value of the Direction property of a linear gradient. The value is equivalent to the 0deg angle
|
// ToTopGradient is value of the Direction property of a linear gradient. The value is equivalent to the 0deg angle
|
||||||
ToTopGradient = 0
|
ToTopGradient = 0
|
||||||
|
|
||||||
// ToRightTopGradient is value of the Direction property of a linear gradient.
|
// ToRightTopGradient is value of the Direction property of a linear gradient.
|
||||||
ToRightTopGradient = 1
|
ToRightTopGradient = 1
|
||||||
|
|
||||||
// ToRightGradient is value of the Direction property of a linear gradient. The value is equivalent to the 90deg angle
|
// ToRightGradient is value of the Direction property of a linear gradient. The value is equivalent to the 90deg angle
|
||||||
ToRightGradient = 2
|
ToRightGradient = 2
|
||||||
|
|
||||||
// ToRightBottomGradient is value of the Direction property of a linear gradient.
|
// ToRightBottomGradient is value of the Direction property of a linear gradient.
|
||||||
ToRightBottomGradient = 3
|
ToRightBottomGradient = 3
|
||||||
|
|
||||||
// ToBottomGradient is value of the Direction property of a linear gradient. The value is equivalent to the 180deg angle
|
// ToBottomGradient is value of the Direction property of a linear gradient. The value is equivalent to the 180deg angle
|
||||||
ToBottomGradient = 4
|
ToBottomGradient = 4
|
||||||
|
|
||||||
// ToLeftBottomGradient is value of the Direction property of a linear gradient.
|
// ToLeftBottomGradient is value of the Direction property of a linear gradient.
|
||||||
ToLeftBottomGradient = 5
|
ToLeftBottomGradient = 5
|
||||||
|
|
||||||
// ToLeftGradient is value of the Direction property of a linear gradient. The value is equivalent to the 270deg angle
|
// ToLeftGradient is value of the Direction property of a linear gradient. The value is equivalent to the 270deg angle
|
||||||
ToLeftGradient = 6
|
ToLeftGradient = 6
|
||||||
|
|
||||||
// ToLeftTopGradient is value of the Direction property of a linear gradient.
|
// ToLeftTopGradient is value of the Direction property of a linear gradient.
|
||||||
ToLeftTopGradient = 7
|
ToLeftTopGradient = 7
|
||||||
|
|
||||||
// EllipseGradient is value of the Shape property of a radial gradient background:
|
|
||||||
// the shape is an axis-aligned ellipse
|
|
||||||
EllipseGradient = 0
|
|
||||||
// CircleGradient is value of the Shape property of a radial gradient background:
|
|
||||||
// the gradient's shape is a circle with constant radius
|
|
||||||
CircleGradient = 1
|
|
||||||
|
|
||||||
// ClosestSideGradient is value of the Radius property of a radial gradient background:
|
|
||||||
// The gradient's ending shape meets the side of the box closest to its center (for circles)
|
|
||||||
// or meets both the vertical and horizontal sides closest to the center (for ellipses).
|
|
||||||
ClosestSideGradient = 0
|
|
||||||
// ClosestCornerGradient is value of the Radius property of a radial gradient background:
|
|
||||||
// The gradient's ending shape is sized so that it exactly meets the closest corner
|
|
||||||
// of the box from its center.
|
|
||||||
ClosestCornerGradient = 1
|
|
||||||
// FarthestSideGradient is value of the Radius property of a radial gradient background:
|
|
||||||
// Similar to closest-side, except the ending shape is sized to meet the side of the box
|
|
||||||
// farthest from its center (or vertical and horizontal sides).
|
|
||||||
FarthestSideGradient = 2
|
|
||||||
// FarthestCornerGradient is value of the Radius property of a radial gradient background:
|
|
||||||
// The default value, the gradient's ending shape is sized so that it exactly meets
|
|
||||||
// the farthest corner of the box from its center.
|
|
||||||
FarthestCornerGradient = 3
|
|
||||||
)
|
)
|
||||||
|
|
||||||
// BackgroundGradientPoint define point on gradient straight line
|
// BackgroundGradientPoint define point on gradient straight line
|
||||||
|
|
@ -65,10 +47,6 @@ type backgroundLinearGradient struct {
|
||||||
backgroundGradient
|
backgroundGradient
|
||||||
}
|
}
|
||||||
|
|
||||||
type backgroundRadialGradient struct {
|
|
||||||
backgroundGradient
|
|
||||||
}
|
|
||||||
|
|
||||||
// NewBackgroundLinearGradient creates the new background linear gradient
|
// NewBackgroundLinearGradient creates the new background linear gradient
|
||||||
func NewBackgroundLinearGradient(params Params) BackgroundElement {
|
func NewBackgroundLinearGradient(params Params) BackgroundElement {
|
||||||
result := new(backgroundLinearGradient)
|
result := new(backgroundLinearGradient)
|
||||||
|
|
@ -79,16 +57,6 @@ func NewBackgroundLinearGradient(params Params) BackgroundElement {
|
||||||
return result
|
return result
|
||||||
}
|
}
|
||||||
|
|
||||||
// NewBackgroundRadialGradient creates the new background radial gradient
|
|
||||||
func NewBackgroundRadialGradient(params Params) BackgroundElement {
|
|
||||||
result := new(backgroundRadialGradient)
|
|
||||||
result.init()
|
|
||||||
for tag, value := range params {
|
|
||||||
result.Set(tag, value)
|
|
||||||
}
|
|
||||||
return result
|
|
||||||
}
|
|
||||||
|
|
||||||
func parseGradientText(value string) []BackgroundGradientPoint {
|
func parseGradientText(value string) []BackgroundGradientPoint {
|
||||||
elements := strings.Split(value, ",")
|
elements := strings.Split(value, ",")
|
||||||
count := len(elements)
|
count := len(elements)
|
||||||
|
|
@ -422,261 +390,3 @@ func (gradient *backgroundLinearGradient) writeString(buffer *strings.Builder, i
|
||||||
func (gradient *backgroundLinearGradient) String() string {
|
func (gradient *backgroundLinearGradient) String() string {
|
||||||
return runStringWriter(gradient)
|
return runStringWriter(gradient)
|
||||||
}
|
}
|
||||||
|
|
||||||
func (gradient *backgroundRadialGradient) init() {
|
|
||||||
gradient.backgroundElement.init()
|
|
||||||
gradient.normalize = normalizeRadialGradientTag
|
|
||||||
gradient.set = backgroundRadialGradientSet
|
|
||||||
gradient.supportedProperties = []PropertyName{
|
|
||||||
RadialGradientRadius, RadialGradientShape, CenterX, CenterY, Gradient, Repeating,
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
func (gradient *backgroundRadialGradient) Tag() string {
|
|
||||||
return "radial-gradient"
|
|
||||||
}
|
|
||||||
|
|
||||||
func (image *backgroundRadialGradient) Clone() BackgroundElement {
|
|
||||||
result := NewBackgroundRadialGradient(nil)
|
|
||||||
for tag, value := range image.properties {
|
|
||||||
result.setRaw(tag, value)
|
|
||||||
}
|
|
||||||
return result
|
|
||||||
}
|
|
||||||
|
|
||||||
func normalizeRadialGradientTag(tag PropertyName) PropertyName {
|
|
||||||
tag = defaultNormalize(tag)
|
|
||||||
switch tag {
|
|
||||||
case Radius:
|
|
||||||
tag = RadialGradientRadius
|
|
||||||
|
|
||||||
case Shape:
|
|
||||||
tag = RadialGradientShape
|
|
||||||
|
|
||||||
case "x-center":
|
|
||||||
tag = CenterX
|
|
||||||
|
|
||||||
case "y-center":
|
|
||||||
tag = CenterY
|
|
||||||
}
|
|
||||||
|
|
||||||
return tag
|
|
||||||
}
|
|
||||||
|
|
||||||
func backgroundRadialGradientSet(properties Properties, tag PropertyName, value any) []PropertyName {
|
|
||||||
switch tag {
|
|
||||||
case RadialGradientRadius:
|
|
||||||
switch value := value.(type) {
|
|
||||||
case []SizeUnit:
|
|
||||||
switch len(value) {
|
|
||||||
case 0:
|
|
||||||
properties.setRaw(RadialGradientRadius, nil)
|
|
||||||
|
|
||||||
case 1:
|
|
||||||
if value[0].Type == Auto {
|
|
||||||
properties.setRaw(RadialGradientRadius, nil)
|
|
||||||
} else {
|
|
||||||
properties.setRaw(RadialGradientRadius, value[0])
|
|
||||||
}
|
|
||||||
|
|
||||||
default:
|
|
||||||
properties.setRaw(RadialGradientRadius, value)
|
|
||||||
}
|
|
||||||
return []PropertyName{tag}
|
|
||||||
|
|
||||||
case []any:
|
|
||||||
switch len(value) {
|
|
||||||
case 0:
|
|
||||||
properties.setRaw(RadialGradientRadius, nil)
|
|
||||||
return []PropertyName{tag}
|
|
||||||
|
|
||||||
case 1:
|
|
||||||
return backgroundRadialGradientSet(properties, RadialGradientRadius, value[0])
|
|
||||||
|
|
||||||
default:
|
|
||||||
properties.setRaw(RadialGradientRadius, value)
|
|
||||||
return []PropertyName{tag}
|
|
||||||
}
|
|
||||||
|
|
||||||
case string:
|
|
||||||
if setSimpleProperty(properties, RadialGradientRadius, value) {
|
|
||||||
return []PropertyName{tag}
|
|
||||||
}
|
|
||||||
if size, err := stringToSizeUnit(value); err == nil {
|
|
||||||
if size.Type == Auto {
|
|
||||||
properties.setRaw(RadialGradientRadius, nil)
|
|
||||||
} else {
|
|
||||||
properties.setRaw(RadialGradientRadius, size)
|
|
||||||
}
|
|
||||||
return []PropertyName{tag}
|
|
||||||
}
|
|
||||||
return setEnumProperty(properties, RadialGradientRadius, value, enumProperties[RadialGradientRadius].values)
|
|
||||||
|
|
||||||
case SizeUnit:
|
|
||||||
if value.Type == Auto {
|
|
||||||
properties.setRaw(RadialGradientRadius, nil)
|
|
||||||
} else {
|
|
||||||
properties.setRaw(RadialGradientRadius, value)
|
|
||||||
}
|
|
||||||
return []PropertyName{tag}
|
|
||||||
|
|
||||||
case int:
|
|
||||||
return setEnumProperty(properties, RadialGradientRadius, value, enumProperties[RadialGradientRadius].values)
|
|
||||||
}
|
|
||||||
|
|
||||||
ErrorLogF(`Invalid value of "%s" property: %v`, tag, value)
|
|
||||||
return nil
|
|
||||||
|
|
||||||
case RadialGradientShape, CenterX, CenterY:
|
|
||||||
return propertiesSet(properties, tag, value)
|
|
||||||
}
|
|
||||||
|
|
||||||
return backgroundGradientSet(properties, tag, value)
|
|
||||||
}
|
|
||||||
|
|
||||||
func (gradient *backgroundRadialGradient) cssStyle(session Session) string {
|
|
||||||
buffer := allocStringBuilder()
|
|
||||||
defer freeStringBuilder(buffer)
|
|
||||||
|
|
||||||
if repeating, _ := boolProperty(gradient, Repeating, session); repeating {
|
|
||||||
buffer.WriteString(`repeating-radial-gradient(`)
|
|
||||||
} else {
|
|
||||||
buffer.WriteString(`radial-gradient(`)
|
|
||||||
}
|
|
||||||
|
|
||||||
var shapeText string
|
|
||||||
if shape, ok := enumProperty(gradient, RadialGradientShape, session, EllipseGradient); ok && shape == CircleGradient {
|
|
||||||
shapeText = `circle `
|
|
||||||
} else {
|
|
||||||
shapeText = `ellipse `
|
|
||||||
}
|
|
||||||
|
|
||||||
if value, ok := gradient.properties[RadialGradientRadius]; ok {
|
|
||||||
switch value := value.(type) {
|
|
||||||
case string:
|
|
||||||
if text, ok := session.resolveConstants(value); ok {
|
|
||||||
values := enumProperties[RadialGradientRadius]
|
|
||||||
if n, ok := enumStringToInt(text, values.values, false); ok {
|
|
||||||
buffer.WriteString(shapeText)
|
|
||||||
shapeText = ""
|
|
||||||
buffer.WriteString(values.cssValues[n])
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
} else {
|
|
||||||
if r, ok := StringToSizeUnit(text); ok && r.Type != Auto {
|
|
||||||
buffer.WriteString("ellipse ")
|
|
||||||
shapeText = ""
|
|
||||||
buffer.WriteString(r.cssString("", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
buffer.WriteString(r.cssString("", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
} else {
|
|
||||||
ErrorLog(`Invalid radial gradient radius: ` + text)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
ErrorLog(`Invalid radial gradient radius: ` + value)
|
|
||||||
}
|
|
||||||
|
|
||||||
case int:
|
|
||||||
values := enumProperties[RadialGradientRadius].cssValues
|
|
||||||
if value >= 0 && value < len(values) {
|
|
||||||
buffer.WriteString(shapeText)
|
|
||||||
shapeText = ""
|
|
||||||
buffer.WriteString(values[value])
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
} else {
|
|
||||||
ErrorLogF(`Invalid radial gradient radius: %d`, value)
|
|
||||||
}
|
|
||||||
|
|
||||||
case SizeUnit:
|
|
||||||
if value.Type != Auto {
|
|
||||||
buffer.WriteString("ellipse ")
|
|
||||||
shapeText = ""
|
|
||||||
buffer.WriteString(value.cssString("", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
buffer.WriteString(value.cssString("", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
}
|
|
||||||
|
|
||||||
case []SizeUnit:
|
|
||||||
count := len(value)
|
|
||||||
if count > 2 {
|
|
||||||
count = 2
|
|
||||||
}
|
|
||||||
buffer.WriteString("ellipse ")
|
|
||||||
shapeText = ""
|
|
||||||
for i := 0; i < count; i++ {
|
|
||||||
buffer.WriteString(value[i].cssString("50%", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
}
|
|
||||||
|
|
||||||
case []any:
|
|
||||||
count := len(value)
|
|
||||||
if count > 2 {
|
|
||||||
count = 2
|
|
||||||
}
|
|
||||||
buffer.WriteString("ellipse ")
|
|
||||||
shapeText = ""
|
|
||||||
for i := 0; i < count; i++ {
|
|
||||||
if value[i] != nil {
|
|
||||||
switch value := value[i].(type) {
|
|
||||||
case SizeUnit:
|
|
||||||
buffer.WriteString(value.cssString("50%", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
|
|
||||||
case string:
|
|
||||||
if text, ok := session.resolveConstants(value); ok {
|
|
||||||
if size, err := stringToSizeUnit(text); err == nil {
|
|
||||||
buffer.WriteString(size.cssString("50%", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
} else {
|
|
||||||
buffer.WriteString("50% ")
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
buffer.WriteString("50% ")
|
|
||||||
}
|
|
||||||
}
|
|
||||||
} else {
|
|
||||||
buffer.WriteString("50% ")
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
x, _ := sizeProperty(gradient, CenterX, session)
|
|
||||||
y, _ := sizeProperty(gradient, CenterX, session)
|
|
||||||
if x.Type != Auto || y.Type != Auto {
|
|
||||||
if shapeText != "" {
|
|
||||||
buffer.WriteString(shapeText)
|
|
||||||
}
|
|
||||||
buffer.WriteString("at ")
|
|
||||||
buffer.WriteString(x.cssString("50%", session))
|
|
||||||
buffer.WriteString(" ")
|
|
||||||
buffer.WriteString(y.cssString("50%", session))
|
|
||||||
} else if shapeText != "" {
|
|
||||||
buffer.WriteString(shapeText)
|
|
||||||
}
|
|
||||||
|
|
||||||
buffer.WriteString(", ")
|
|
||||||
if !gradient.writeGradient(session, buffer) {
|
|
||||||
return ""
|
|
||||||
}
|
|
||||||
|
|
||||||
buffer.WriteString(") ")
|
|
||||||
|
|
||||||
return buffer.String()
|
|
||||||
}
|
|
||||||
func (gradient *backgroundRadialGradient) writeString(buffer *strings.Builder, indent string) {
|
|
||||||
gradient.writeToBuffer(buffer, indent, gradient.Tag(), []PropertyName{
|
|
||||||
Gradient,
|
|
||||||
CenterX,
|
|
||||||
CenterY,
|
|
||||||
Repeating,
|
|
||||||
RadialGradientShape,
|
|
||||||
RadialGradientRadius,
|
|
||||||
})
|
|
||||||
}
|
|
||||||
|
|
||||||
func (gradient *backgroundRadialGradient) String() string {
|
|
||||||
return runStringWriter(gradient)
|
|
||||||
}
|
|
||||||
|
|
@ -0,0 +1,307 @@
|
||||||
|
package rui
|
||||||
|
|
||||||
|
import "strings"
|
||||||
|
|
||||||
|
// Constants related to view's background gradient description
|
||||||
|
const (
|
||||||
|
// EllipseGradient is value of the Shape property of a radial gradient background:
|
||||||
|
// the shape is an axis-aligned ellipse
|
||||||
|
EllipseGradient = 0
|
||||||
|
|
||||||
|
// CircleGradient is value of the Shape property of a radial gradient background:
|
||||||
|
// the gradient's shape is a circle with constant radius
|
||||||
|
CircleGradient = 1
|
||||||
|
|
||||||
|
// ClosestSideGradient is value of the Radius property of a radial gradient background:
|
||||||
|
// The gradient's ending shape meets the side of the box closest to its center (for circles)
|
||||||
|
// or meets both the vertical and horizontal sides closest to the center (for ellipses).
|
||||||
|
ClosestSideGradient = 0
|
||||||
|
|
||||||
|
// ClosestCornerGradient is value of the Radius property of a radial gradient background:
|
||||||
|
// The gradient's ending shape is sized so that it exactly meets the closest corner
|
||||||
|
// of the box from its center.
|
||||||
|
ClosestCornerGradient = 1
|
||||||
|
|
||||||
|
// FarthestSideGradient is value of the Radius property of a radial gradient background:
|
||||||
|
// Similar to closest-side, except the ending shape is sized to meet the side of the box
|
||||||
|
// farthest from its center (or vertical and horizontal sides).
|
||||||
|
FarthestSideGradient = 2
|
||||||
|
|
||||||
|
// FarthestCornerGradient is value of the Radius property of a radial gradient background:
|
||||||
|
// The default value, the gradient's ending shape is sized so that it exactly meets
|
||||||
|
// the farthest corner of the box from its center.
|
||||||
|
FarthestCornerGradient = 3
|
||||||
|
)
|
||||||
|
|
||||||
|
type backgroundRadialGradient struct {
|
||||||
|
backgroundGradient
|
||||||
|
}
|
||||||
|
|
||||||
|
// NewBackgroundRadialGradient creates the new background radial gradient
|
||||||
|
func NewBackgroundRadialGradient(params Params) BackgroundElement {
|
||||||
|
result := new(backgroundRadialGradient)
|
||||||
|
result.init()
|
||||||
|
for tag, value := range params {
|
||||||
|
result.Set(tag, value)
|
||||||
|
}
|
||||||
|
return result
|
||||||
|
}
|
||||||
|
|
||||||
|
func (gradient *backgroundRadialGradient) init() {
|
||||||
|
gradient.backgroundElement.init()
|
||||||
|
gradient.normalize = normalizeRadialGradientTag
|
||||||
|
gradient.set = backgroundRadialGradientSet
|
||||||
|
gradient.supportedProperties = []PropertyName{
|
||||||
|
RadialGradientRadius, RadialGradientShape, CenterX, CenterY, Gradient, Repeating,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func (gradient *backgroundRadialGradient) Tag() string {
|
||||||
|
return "radial-gradient"
|
||||||
|
}
|
||||||
|
|
||||||
|
func (image *backgroundRadialGradient) Clone() BackgroundElement {
|
||||||
|
result := NewBackgroundRadialGradient(nil)
|
||||||
|
for tag, value := range image.properties {
|
||||||
|
result.setRaw(tag, value)
|
||||||
|
}
|
||||||
|
return result
|
||||||
|
}
|
||||||
|
|
||||||
|
func normalizeRadialGradientTag(tag PropertyName) PropertyName {
|
||||||
|
tag = defaultNormalize(tag)
|
||||||
|
switch tag {
|
||||||
|
case Radius:
|
||||||
|
tag = RadialGradientRadius
|
||||||
|
|
||||||
|
case Shape:
|
||||||
|
tag = RadialGradientShape
|
||||||
|
|
||||||
|
case "x-center":
|
||||||
|
tag = CenterX
|
||||||
|
|
||||||
|
case "y-center":
|
||||||
|
tag = CenterY
|
||||||
|
}
|
||||||
|
|
||||||
|
return tag
|
||||||
|
}
|
||||||
|
|
||||||
|
func backgroundRadialGradientSet(properties Properties, tag PropertyName, value any) []PropertyName {
|
||||||
|
switch tag {
|
||||||
|
case RadialGradientRadius:
|
||||||
|
switch value := value.(type) {
|
||||||
|
case []SizeUnit:
|
||||||
|
switch len(value) {
|
||||||
|
case 0:
|
||||||
|
properties.setRaw(RadialGradientRadius, nil)
|
||||||
|
|
||||||
|
case 1:
|
||||||
|
if value[0].Type == Auto {
|
||||||
|
properties.setRaw(RadialGradientRadius, nil)
|
||||||
|
} else {
|
||||||
|
properties.setRaw(RadialGradientRadius, value[0])
|
||||||
|
}
|
||||||
|
|
||||||
|
default:
|
||||||
|
properties.setRaw(RadialGradientRadius, value)
|
||||||
|
}
|
||||||
|
return []PropertyName{tag}
|
||||||
|
|
||||||
|
case []any:
|
||||||
|
switch len(value) {
|
||||||
|
case 0:
|
||||||
|
properties.setRaw(RadialGradientRadius, nil)
|
||||||
|
return []PropertyName{tag}
|
||||||
|
|
||||||
|
case 1:
|
||||||
|
return backgroundRadialGradientSet(properties, RadialGradientRadius, value[0])
|
||||||
|
|
||||||
|
default:
|
||||||
|
properties.setRaw(RadialGradientRadius, value)
|
||||||
|
return []PropertyName{tag}
|
||||||
|
}
|
||||||
|
|
||||||
|
case string:
|
||||||
|
if setSimpleProperty(properties, RadialGradientRadius, value) {
|
||||||
|
return []PropertyName{tag}
|
||||||
|
}
|
||||||
|
if size, err := stringToSizeUnit(value); err == nil {
|
||||||
|
if size.Type == Auto {
|
||||||
|
properties.setRaw(RadialGradientRadius, nil)
|
||||||
|
} else {
|
||||||
|
properties.setRaw(RadialGradientRadius, size)
|
||||||
|
}
|
||||||
|
return []PropertyName{tag}
|
||||||
|
}
|
||||||
|
return setEnumProperty(properties, RadialGradientRadius, value, enumProperties[RadialGradientRadius].values)
|
||||||
|
|
||||||
|
case SizeUnit:
|
||||||
|
if value.Type == Auto {
|
||||||
|
properties.setRaw(RadialGradientRadius, nil)
|
||||||
|
} else {
|
||||||
|
properties.setRaw(RadialGradientRadius, value)
|
||||||
|
}
|
||||||
|
return []PropertyName{tag}
|
||||||
|
|
||||||
|
case int:
|
||||||
|
return setEnumProperty(properties, RadialGradientRadius, value, enumProperties[RadialGradientRadius].values)
|
||||||
|
}
|
||||||
|
|
||||||
|
ErrorLogF(`Invalid value of "%s" property: %v`, tag, value)
|
||||||
|
return nil
|
||||||
|
|
||||||
|
case RadialGradientShape, CenterX, CenterY:
|
||||||
|
return propertiesSet(properties, tag, value)
|
||||||
|
}
|
||||||
|
|
||||||
|
return backgroundGradientSet(properties, tag, value)
|
||||||
|
}
|
||||||
|
|
||||||
|
func (gradient *backgroundRadialGradient) cssStyle(session Session) string {
|
||||||
|
buffer := allocStringBuilder()
|
||||||
|
defer freeStringBuilder(buffer)
|
||||||
|
|
||||||
|
if repeating, _ := boolProperty(gradient, Repeating, session); repeating {
|
||||||
|
buffer.WriteString(`repeating-radial-gradient(`)
|
||||||
|
} else {
|
||||||
|
buffer.WriteString(`radial-gradient(`)
|
||||||
|
}
|
||||||
|
|
||||||
|
var shapeText string
|
||||||
|
if shape, ok := enumProperty(gradient, RadialGradientShape, session, EllipseGradient); ok && shape == CircleGradient {
|
||||||
|
shapeText = `circle `
|
||||||
|
} else {
|
||||||
|
shapeText = `ellipse `
|
||||||
|
}
|
||||||
|
|
||||||
|
if value, ok := gradient.properties[RadialGradientRadius]; ok {
|
||||||
|
switch value := value.(type) {
|
||||||
|
case string:
|
||||||
|
if text, ok := session.resolveConstants(value); ok {
|
||||||
|
values := enumProperties[RadialGradientRadius]
|
||||||
|
if n, ok := enumStringToInt(text, values.values, false); ok {
|
||||||
|
buffer.WriteString(shapeText)
|
||||||
|
shapeText = ""
|
||||||
|
buffer.WriteString(values.cssValues[n])
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
} else {
|
||||||
|
if r, ok := StringToSizeUnit(text); ok && r.Type != Auto {
|
||||||
|
buffer.WriteString("ellipse ")
|
||||||
|
shapeText = ""
|
||||||
|
buffer.WriteString(r.cssString("", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
buffer.WriteString(r.cssString("", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
} else {
|
||||||
|
ErrorLog(`Invalid radial gradient radius: ` + text)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
ErrorLog(`Invalid radial gradient radius: ` + value)
|
||||||
|
}
|
||||||
|
|
||||||
|
case int:
|
||||||
|
values := enumProperties[RadialGradientRadius].cssValues
|
||||||
|
if value >= 0 && value < len(values) {
|
||||||
|
buffer.WriteString(shapeText)
|
||||||
|
shapeText = ""
|
||||||
|
buffer.WriteString(values[value])
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
} else {
|
||||||
|
ErrorLogF(`Invalid radial gradient radius: %d`, value)
|
||||||
|
}
|
||||||
|
|
||||||
|
case SizeUnit:
|
||||||
|
if value.Type != Auto {
|
||||||
|
buffer.WriteString("ellipse ")
|
||||||
|
shapeText = ""
|
||||||
|
buffer.WriteString(value.cssString("", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
buffer.WriteString(value.cssString("", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
}
|
||||||
|
|
||||||
|
case []SizeUnit:
|
||||||
|
count := len(value)
|
||||||
|
if count > 2 {
|
||||||
|
count = 2
|
||||||
|
}
|
||||||
|
buffer.WriteString("ellipse ")
|
||||||
|
shapeText = ""
|
||||||
|
for i := 0; i < count; i++ {
|
||||||
|
buffer.WriteString(value[i].cssString("50%", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
}
|
||||||
|
|
||||||
|
case []any:
|
||||||
|
count := len(value)
|
||||||
|
if count > 2 {
|
||||||
|
count = 2
|
||||||
|
}
|
||||||
|
buffer.WriteString("ellipse ")
|
||||||
|
shapeText = ""
|
||||||
|
for i := 0; i < count; i++ {
|
||||||
|
if value[i] != nil {
|
||||||
|
switch value := value[i].(type) {
|
||||||
|
case SizeUnit:
|
||||||
|
buffer.WriteString(value.cssString("50%", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
|
||||||
|
case string:
|
||||||
|
if text, ok := session.resolveConstants(value); ok {
|
||||||
|
if size, err := stringToSizeUnit(text); err == nil {
|
||||||
|
buffer.WriteString(size.cssString("50%", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
} else {
|
||||||
|
buffer.WriteString("50% ")
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
buffer.WriteString("50% ")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
buffer.WriteString("50% ")
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
x, _ := sizeProperty(gradient, CenterX, session)
|
||||||
|
y, _ := sizeProperty(gradient, CenterX, session)
|
||||||
|
if x.Type != Auto || y.Type != Auto {
|
||||||
|
if shapeText != "" {
|
||||||
|
buffer.WriteString(shapeText)
|
||||||
|
}
|
||||||
|
buffer.WriteString("at ")
|
||||||
|
buffer.WriteString(x.cssString("50%", session))
|
||||||
|
buffer.WriteString(" ")
|
||||||
|
buffer.WriteString(y.cssString("50%", session))
|
||||||
|
} else if shapeText != "" {
|
||||||
|
buffer.WriteString(shapeText)
|
||||||
|
}
|
||||||
|
|
||||||
|
buffer.WriteString(", ")
|
||||||
|
if !gradient.writeGradient(session, buffer) {
|
||||||
|
return ""
|
||||||
|
}
|
||||||
|
|
||||||
|
buffer.WriteString(") ")
|
||||||
|
|
||||||
|
return buffer.String()
|
||||||
|
}
|
||||||
|
|
||||||
|
func (gradient *backgroundRadialGradient) writeString(buffer *strings.Builder, indent string) {
|
||||||
|
gradient.writeToBuffer(buffer, indent, gradient.Tag(), []PropertyName{
|
||||||
|
Gradient,
|
||||||
|
CenterX,
|
||||||
|
CenterY,
|
||||||
|
Repeating,
|
||||||
|
RadialGradientShape,
|
||||||
|
RadialGradientRadius,
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
func (gradient *backgroundRadialGradient) String() string {
|
||||||
|
return runStringWriter(gradient)
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue