From 5cc4475370002bdd8d68c3bd22b257958fa8728d Mon Sep 17 00:00:00 2001 From: Alexei Anoshenko <2277098+anoshenko@users.noreply.github.com> Date: Mon, 25 Nov 2024 12:03:08 +0200 Subject: [PATCH] * Added "push-perspective", "push-rotate-x", "push-rotate-y", "push-rotate-z", "push-rotate", "push-skew-x", "push-skew-y", "push-scale-x", "push-scale-y", "push-scale-z", "push-translate-x", "push-translate-y", "push-translate-z" properties. --- CHANGELOG.md | 2 + stackLayout.go | 198 ++++++++++++++++++++++++++++++++++++++++++++++++ transform.go | 86 ++++++++++++--------- view.go | 7 +- viewStyleSet.go | 6 +- 5 files changed, 260 insertions(+), 39 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 38b90f2..979568a 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -7,6 +7,8 @@ * Changed Push and Pop method of StackLayout interface. * Removed DefaultAnimation, StartToEndAnimation, EndToStartAnimation, TopDownAnimation, and BottomUpAnimation constants. * Added "push-transform", "push-duration", "push-timing", and "move-to-front-animation" properties. +* Added "push-perspective", "push-rotate-x", "push-rotate-y", "push-rotate-z", "push-rotate", "push-skew-x", "push-skew-y", +"push-scale-x", "push-scale-y", "push-scale-z", "push-translate-x", "push-translate-y", "push-translate-z" properties. * Added GetPushTransform, GetPushDuration, GetPushTiming, and IsMoveToFrontAnimation functions. * Added LineJoin type. Type of constants MiterJoin, RoundJoin, and BevelJoin changed to LineJoin. Type of Canvas.SetLineJoin function argument changed to LineJoin. * Added LineCap type. Type of constants ButtCap, RoundCap, and SquareCap changed to LineCap. Type of Canvas.SetLineCap function argument changed to LineCap. diff --git a/stackLayout.go b/stackLayout.go index 1ea0eea..1d77b6e 100644 --- a/stackLayout.go +++ b/stackLayout.go @@ -58,6 +58,191 @@ const ( // `true` or `1` or "true", "yes", "on", "1" - animation is used (default value). // `false` or `0` or "false", "no", "off", "0" - animation is not used. MoveToFrontAnimation = "move-to-front-animation" + + // PushPerspective is the constant for "push-perspective" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "perspective" property of StackLayout "push-transform" property: + // Distance between the z-plane and the user in order to give a 3D-positioned element some perspective. Each 3D element + // with z > 0 becomes larger, each 3D-element with z < 0 becomes smaller. The default value is 0 (no 3D effects). + // + // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. + // + // Internal type is `SizeUnit`, other types converted to it during assignment. + // See `SizeUnit` description for more details. + PushPerspective PropertyName = "push-perspective" + + // PushTranslateX is the constant for "push-translate-x" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "translate-x" property of StackLayout "push-transform" property: + // x-axis translation value of a 2D/3D translation. + // + // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. + // + // Internal type is `SizeUnit`, other types converted to it during assignment. + // See `SizeUnit` description for more details. + PushTranslateX PropertyName = "push-translate-x" + + // PushTranslateY is the constant for "push-translate-y" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "translate-y" property of StackLayout "push-transform" property: + // y-axis translation value of a 2D/3D translation. + // + // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. + // + // Internal type is `SizeUnit`, other types converted to it during assignment. + // See `SizeUnit` description for more details. + PushTranslateY PropertyName = "push-translate-y" + + // PushTranslateZ is the constant for "push-translate-z" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "translate-z" property of StackLayout "push-transform" property: + // z-axis translation value of a 3D translation. + // + // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. + // + // Internal type is `SizeUnit`, other types converted to it during assignment. + // See `SizeUnit` description for more details. + PushTranslateZ PropertyName = "push-translate-z" + + // PushScaleX is the constant for "push-scale-x" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "scale-x" property of StackLayout "push-transform" property: + // x-axis scaling value of a 2D/3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original + // scale, more than 1 - to increase. The default value is 1. + // + // Supported types: `float`, `int`, `string`. + // + // Internal type is `float`, other types converted to it during assignment. + PushScaleX PropertyName = "push-scale-x" + + // PushScaleY is the constant for "push-scale-y" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "scale-y" property of StackLayout "push-transform" property: + // y-axis scaling value of a 2D/3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original + // scale, more than 1 - to increase. The default value is 1. + // + // Supported types: `float`, `int`, `string`. + // + // Internal type is `float`, other types converted to it during assignment. + PushScaleY PropertyName = "push-scale-y" + + // PushScaleZ is the constant for "push-scale-z" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "scale-z" property of StackLayout "push-transform" property: + // z-axis scaling value of a 3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original + // scale, more than 1 - to increase. The default value is 1. + // + // Supported types: `float`, `int`, `string`. + // + // Internal type is `float`, other types converted to it during assignment. + PushScaleZ PropertyName = "push-scale-z" + + // PushRotate is the constant for "push-rotate" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "rotate" property of StackLayout "push-transform" property: + // Angle of the view rotation. A positive angle denotes a clockwise rotation, a negative angle a counter-clockwise. + // + // Supported types: `AngleUnit`, `string`, `float`, `int`. + // + // Internal type is `AngleUnit`, other types will be converted to it during assignment. + // See `AngleUnit` description for more details. + // + // Conversion rules: + // `AngleUnit` - stored as is, no conversion performed. + // `string` - must contain string representation of `AngleUnit`. If numeric value will be provided without any suffix then `AngleUnit` with value and `Radian` value type will be created. + // `float` - a new `AngleUnit` value will be created with `Radian` as a type. + // `int` - a new `AngleUnit` value will be created with `Radian` as a type. + PushRotate PropertyName = "push-rotate" + + // PushRotateX is the constant for "push-rotate-x" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "rotate-x" property of StackLayout "push-transform" property: + // x-coordinate of the vector denoting the axis of rotation in range 0 to 1. + // + // Supported types: `float`, `int`, `string`. + // + // Internal type is `float`, other types converted to it during assignment. + PushRotateX PropertyName = "push-rotate-x" + + // PushRotateY is the constant for "push-rotate-y" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "rotate-y" property of StackLayout "push-transform" property: + // y-coordinate of the vector denoting the axis of rotation in range 0 to 1. + // + // Supported types: `float`, `int`, `string`. + // + // Internal type is `float`, other types converted to it during assignment. + PushRotateY PropertyName = "push-rotate-y" + + // PushRotateZ is the constant for "push-rotate-z" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "rotate-z" property of StackLayout "push-transform" property: + // z-coordinate of the vector denoting the axis of rotation in range 0 to 1. + // + // Supported types: `float`, `int`, `string`. + // + // Internal type is `float`, other types converted to it during assignment. + PushRotateZ PropertyName = "push-rotate-z" + + // PushSkewX is the constant for "push-skew-x" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "skew-x" property of StackLayout "push-transform" property: + // Angle to use to distort the element along the abscissa. The default value is 0. + // + // Supported types: `AngleUnit`, `string`, `float`, `int`. + // + // Internal type is `AngleUnit`, other types will be converted to it during assignment. + // See `AngleUnit` description for more details. + // + // Conversion rules: + // `AngleUnit` - stored as is, no conversion performed. + // `string` - must contain string representation of `AngleUnit`. If numeric value will be provided without any suffix then `AngleUnit` with value and `Radian` value type will be created. + // `float` - a new `AngleUnit` value will be created with `Radian` as a type. + // `int` - a new `AngleUnit` value will be created with `Radian` as a type. + PushSkewX PropertyName = "push-skew-x" + + // PushSkewY is the constant for "push-skew-y" property tag. + // + // Used by `StackLayout`. + // + // Used to access the "skew-y" property of StackLayout "push-transform" property: + // Angle to use to distort the element along the ordinate. The default value is 0. + // + // Supported types: `AngleUnit`, `string`, `float`, `int`. + // + // Internal type is `AngleUnit`, other types will be converted to it during assignment. + // See `AngleUnit` description for more details. + // + // Conversion rules: + // `AngleUnit` - stored as is, no conversion performed. + // `string` - must contain string representation of `AngleUnit`. If numeric value will be provided without any suffix then `AngleUnit` with value and `Radian` value type will be created. + // `float` - a new `AngleUnit` value will be created with `Radian` as a type. + // `int` - a new `AngleUnit` value will be created with `Radian` as a type. + PushSkewY PropertyName = "push-skew-y" ) // StackLayout represents a StackLayout view @@ -137,6 +322,7 @@ func (layout *stackLayoutData) init(session Session) { layout.onMoveFinished = map[string]popFinished{} layout.set = layout.setFunc layout.remove = layout.removeFunc + layout.changed = layout.propertyChanged layout.setRaw(TransitionEndEvent, []func(View, PropertyName){layout.transitionFinished}) if session.TextDirection() == RightToLeftDirection { @@ -253,6 +439,18 @@ func (layout *stackLayoutData) setFunc(tag PropertyName, value any) []PropertyNa return layout.viewsContainerData.setFunc(tag, value) } +func (layout *stackLayoutData) propertyChanged(tag PropertyName) { + switch tag { + case PushTransform, PushTiming, PushDuration, MoveToFrontAnimation, + PushPerspective, PushRotateX, PushRotateY, PushRotateZ, PushRotate, PushSkewX, PushSkewY, + PushScaleX, PushScaleY, PushScaleZ, PushTranslateX, PushTranslateY, PushTranslateZ: + // do nothing + + default: + layout.viewsContainerData.propertyChanged(tag) + } +} + func (layout *stackLayoutData) removeFunc(tag PropertyName) []PropertyName { switch tag { case TransitionEndEvent: diff --git a/transform.go b/transform.go index fefe2fd..c9a9756 100644 --- a/transform.go +++ b/transform.go @@ -19,12 +19,12 @@ const ( // // Conversion rules: // `TransformProperty` - stored as is, no conversion performed. - // `string` - string representation of `Transform` interface. Example: "_{translate-x = 10px, scale-y = 1.1}". + // `string` - string representation of `TransformProperty` interface. Example: "_{translate-x = 10px, scale-y = 1.1}". Transform PropertyName = "transform" // Perspective is the constant for "perspective" property tag. // - // Used by `View`. + // Used by `View`, `TransformProperty`. // Distance between the z-plane and the user in order to give a 3D-positioned element some perspective. Each 3D element // with z > 0 becomes larger, each 3D-element with z < 0 becomes smaller. The default value is 0 (no 3D effects). // @@ -70,7 +70,7 @@ const ( // `false` or `0` or "false", "no", "off", "0" - Back face is hidden, effectively making the view invisible when turned away from the user. BackfaceVisible PropertyName = "backface-visibility" - // OriginX is the constant for "origin-x" property tag. + // TransformOriginX is the constant for "transform-origin-x" property tag. // // Used by `View`. // x-coordinate of the point around which a view transformation is applied. The default value is 50%. @@ -81,7 +81,7 @@ const ( // See `SizeUnit` description for more details. TransformOriginX PropertyName = "transform-origin-x" - // OriginY is the constant for "origin-y" property tag. + // TransformOriginY is the constant for "transform-origin-y" property tag. // // Used by `View`. // y-coordinate of the point around which a view transformation is applied. The default value is 50%. @@ -92,7 +92,7 @@ const ( // See `SizeUnit` description for more details. TransformOriginY PropertyName = "transform-origin-y" - // OriginZ is the constant for "origin-z" property tag. + // TransformOriginZ is the constant for "transform-origin-z" property tag. // // Used by `View`. // z-coordinate of the point around which a view transformation is applied. The default value is 50%. @@ -105,7 +105,7 @@ const ( // TranslateX is the constant for "translate-x" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // x-axis translation value of a 2D/3D translation. @@ -115,7 +115,7 @@ const ( // Internal type is `SizeUnit`, other types converted to it during assignment. // See `SizeUnit` description for more details. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // x-axis translation value of a 2D/3D translation. // // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. @@ -126,7 +126,7 @@ const ( // TranslateY is the constant for "translate-y" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // y-axis translation value of a 2D/3D translation. @@ -136,7 +136,7 @@ const ( // Internal type is `SizeUnit`, other types converted to it during assignment. // See `SizeUnit` description for more details. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // x-axis translation value of a 2D/3D translation. // // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. @@ -147,7 +147,7 @@ const ( // TranslateZ is the constant for "translate-z" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // z-axis translation value of a 3D translation. @@ -157,7 +157,7 @@ const ( // Internal type is `SizeUnit`, other types converted to it during assignment. // See `SizeUnit` description for more details. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // z-axis translation value of a 3D translation. // // Supported types: `SizeUnit`, `SizeFunc`, `string`, `float`, `int`. @@ -168,7 +168,7 @@ const ( // ScaleX is the constant for "scale-x" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // x-axis scaling value of a 2D/3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original @@ -178,7 +178,7 @@ const ( // // Internal type is `float`, other types converted to it during assignment. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // x-axis scaling value of a 2D/3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original // scale, more than 1 - to increase. The default value is 1. // @@ -189,7 +189,7 @@ const ( // ScaleY is the constant for "scale-y" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // y-axis scaling value of a 2D/3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original @@ -199,7 +199,7 @@ const ( // // Internal type is `float`, other types converted to it during assignment. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // y-axis scaling value of a 2D/3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original // scale, more than 1 - to increase. The default value is 1. // @@ -210,7 +210,7 @@ const ( // ScaleZ is the constant for "scale-z" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // z-axis scaling value of a 3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original @@ -220,7 +220,7 @@ const ( // // Internal type is `float`, other types converted to it during assignment. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // z-axis scaling value of a 3D scale. The original scale is 1. Values between 0 and 1 are used to decrease original // scale, more than 1 - to increase. The default value is 1. // @@ -231,7 +231,7 @@ const ( // Rotate is the constant for "rotate" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // Angle of the view rotation. A positive angle denotes a clockwise rotation, a negative angle a counter-clockwise. @@ -247,7 +247,7 @@ const ( // `float` - a new `AngleUnit` value will be created with `Radian` as a type. // `int` - a new `AngleUnit` value will be created with `Radian` as a type. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // Angle of the view rotation. A positive angle denotes a clockwise rotation, a negative angle a counter-clockwise. // // Supported types: `AngleUnit`, `string`, `float`, `int`. @@ -264,7 +264,7 @@ const ( // RotateX is the constant for "rotate-x" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // x-coordinate of the vector denoting the axis of rotation in range 0 to 1. @@ -273,7 +273,7 @@ const ( // // Internal type is `float`, other types converted to it during assignment. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // x-coordinate of the vector denoting the axis of rotation in range 0 to 1. // // Supported types: `float`, `int`, `string`. @@ -283,7 +283,7 @@ const ( // RotateY is the constant for "rotate-y" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // y-coordinate of the vector denoting the axis of rotation in range 0 to 1. @@ -292,7 +292,7 @@ const ( // // Internal type is `float`, other types converted to it during assignment. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // y-coordinate of the vector denoting the axis of rotation in range 0 to 1. // // Supported types: `float`, `int`, `string`. @@ -302,7 +302,7 @@ const ( // RotateZ is the constant for "rotate-z" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // z-coordinate of the vector denoting the axis of rotation in range 0 to 1. @@ -311,7 +311,7 @@ const ( // // Internal type is `float`, other types converted to it during assignment. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // z-coordinate of the vector denoting the axis of rotation in range 0 to 1. // // Supported types: `float`, `int`, `string`. @@ -321,7 +321,7 @@ const ( // SkewX is the constant for "skew-x" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // Angle to use to distort the element along the abscissa. The default value is 0. @@ -337,7 +337,7 @@ const ( // `float` - a new `AngleUnit` value will be created with `Radian` as a type. // `int` - a new `AngleUnit` value will be created with `Radian` as a type. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // Angle to use to distort the element along the abscissa. The default value is 0. // // Supported types: `AngleUnit`, `string`, `float`, `int`. @@ -354,7 +354,7 @@ const ( // SkewY is the constant for "skew-y" property tag. // - // Used by `View`, `Transform`. + // Used by `View`, `TransformProperty`. // // Usage in `View`: // Angle to use to distort the element along the ordinate. The default value is 0. @@ -370,7 +370,7 @@ const ( // `float` - a new `AngleUnit` value will be created with `Radian` as a type. // `int` - a new `AngleUnit` value will be created with `Radian` as a type. // - // Usage in `Transform`: + // Usage in `TransformProperty`: // Angle to use to distort the element along the ordinate. The default value is 0. // // Supported types: `AngleUnit`, `string`, `float`, `int`. @@ -416,6 +416,7 @@ func NewTransformProperty(params Params) TransformProperty { func (transform *transformPropertyData) init() { transform.dataProperty.init() + transform.normalize = normalizeTransformTag transform.set = transformSet transform.supportedProperties = []PropertyName{ RotateX, RotateY, RotateZ, Rotate, SkewX, SkewY, ScaleX, ScaleY, ScaleZ, @@ -423,6 +424,17 @@ func (transform *transformPropertyData) init() { } } +func normalizeTransformTag(tag PropertyName) PropertyName { + tag = defaultNormalize(tag) + + name := string(tag) + if strings.HasPrefix(name, "push-") { + tag = PropertyName(name[5:]) + } + + return tag +} + func (transform *transformPropertyData) String() string { buffer := allocStringBuilder() defer freeStringBuilder(buffer) @@ -527,25 +539,27 @@ func getTransformProperty(properties Properties, tag PropertyName) TransformProp return nil } -func setTransformPropertyElement(properties Properties, tag PropertyName, value any) []PropertyName { +func setTransformPropertyElement(properties Properties, tag, transformTag PropertyName, value any) []PropertyName { + srcTag := tag + tag = normalizeTransformTag(tag) switch tag { case Perspective, RotateX, RotateY, RotateZ, Rotate, SkewX, SkewY, ScaleX, ScaleY, ScaleZ, TranslateX, TranslateY, TranslateZ: var result []PropertyName = nil - if transform := getTransformProperty(properties, Transform); transform != nil { + if transform := getTransformProperty(properties, transformTag); transform != nil { if result = transformSet(transform, tag, value); result != nil { - result = append(result, Transform) + result = []PropertyName{srcTag, transformTag} } } else { transform := NewTransformProperty(nil) if result = transformSet(transform, tag, value); result != nil { - properties.setRaw(Transform, transform) - result = append(result, Transform) + properties.setRaw(transformTag, transform) + result = []PropertyName{srcTag, transformTag} } } return result } - ErrorLogF(`"Transform" interface does not support the "%s" property`, tag) + ErrorLogF(`"TransformProperty" interface does not support the "%s" property`, tag) return nil } @@ -698,7 +712,7 @@ func (style *viewStyle) writeViewTransformCSS(builder cssBuilder, session Sessio } if transform := getTransformProperty(style, Transform); transform != nil { - builder.add(`transform`, transform.transformCSS(session)) + builder.add(`TransformProperty`, transform.transformCSS(session)) } } diff --git a/view.go b/view.go index e1923b0..c999658 100644 --- a/view.go +++ b/view.go @@ -705,14 +705,17 @@ func (view *viewData) propertyChanged(tag PropertyName) { x, y, z := getTransformOrigin(view, session) session.updateCSSProperty(htmlID, "transform-origin", transformOriginCSS(x, y, z, view.Session())) - case Transform, Perspective, SkewX, SkewY, TranslateX, TranslateY, TranslateZ, - ScaleX, ScaleY, ScaleZ, Rotate, RotateX, RotateY, RotateZ: + case Transform: css := "" if transform := getTransformProperty(view, Transform); transform != nil { css = transform.transformCSS(session) } session.updateCSSProperty(htmlID, "transform", css) + case Perspective, SkewX, SkewY, TranslateX, TranslateY, TranslateZ, + ScaleX, ScaleY, ScaleZ, Rotate, RotateX, RotateY, RotateZ: + // do nothing + case FocusEvent, LostFocusEvent, ResizeEvent, ScrollEvent, KeyDownEvent, KeyUpEvent, ClickEvent, DoubleClickEvent, MouseDown, MouseUp, MouseMove, MouseOut, MouseOver, ContextMenuEvent, PointerDown, PointerUp, PointerMove, PointerOut, PointerOver, PointerCancel, diff --git a/viewStyleSet.go b/viewStyleSet.go index 1aac7ed..942951d 100644 --- a/viewStyleSet.go +++ b/viewStyleSet.go @@ -354,7 +354,11 @@ func viewStyleSet(style Properties, tag PropertyName, value any) []PropertyName case Perspective, RotateX, RotateY, RotateZ, Rotate, SkewX, SkewY, ScaleX, ScaleY, ScaleZ, TranslateX, TranslateY, TranslateZ: - return setTransformPropertyElement(style, tag, value) + return setTransformPropertyElement(style, tag, Transform, value) + + case PushPerspective, PushRotateX, PushRotateY, PushRotateZ, PushRotate, PushSkewX, PushSkewY, + PushScaleX, PushScaleY, PushScaleZ, PushTranslateX, PushTranslateY, PushTranslateZ: + return setTransformPropertyElement(style, tag, PushTransform, value) case Orientation: if text, ok := value.(string); ok {