Replace Mask ScreenCorners with Canvas
ScreenCorners: replace Mask with Canvas, RAM usage seems fine
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2 changed files with 169 additions and 81 deletions
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@ -19,20 +19,15 @@ Loader {
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readonly property real scaling: ScalingService.scale(screen)
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screen: modelData
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// Visible color
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property color ringColor: Qt.rgba(Color.mSurface.r, Color.mSurface.g, Color.mSurface.b,
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Settings.data.bar.backgroundOpacity)
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// The amount subtracted from full size for the inner cutout
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// Inner size = full size - borderWidth (per axis)
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property int borderWidth: Style.borderM
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// Rounded radius for the inner cutout
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property int innerRadius: 20
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property color cornerColor: Qt.rgba(Color.mSurface.r, Color.mSurface.g, Color.mSurface.b,
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Settings.data.bar.backgroundOpacity)
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property real cornerRadius: 20 * scaling
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property real cornerSize: 20 * scaling
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color: Color.transparent
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WlrLayershell.exclusionMode: ExclusionMode.Ignore
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WlrLayershell.namespace: "quickshell-corner"
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// Do not take keyboard focus and make the surface click-through
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WlrLayershell.keyboardFocus: WlrKeyboardFocus.None
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anchors {
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@ -51,100 +46,194 @@ Loader {
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&& Settings.data.bar.backgroundOpacity > 0 ? Math.round(Style.barHeight * scaling) : 0
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}
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// Source we want to show only as a ring
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Rectangle {
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id: overlaySource
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anchors.fill: parent
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color: root.ringColor
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}
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// Texture for overlaySource
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ShaderEffectSource {
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id: overlayTexture
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anchors.fill: parent
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sourceItem: overlaySource
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hideSource: true
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live: true
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visible: false
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}
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// Mask via Canvas: paint opaque white, then punch rounded inner hole
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// Top-left concave corner
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Canvas {
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id: maskSource
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anchors.fill: parent
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id: topLeftCorner
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anchors.top: parent.top
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anchors.left: parent.left
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width: cornerSize
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height: cornerSize
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antialiasing: true
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renderTarget: Canvas.FramebufferObject
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smooth: false
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onPaint: {
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const ctx = getContext("2d")
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if (!ctx)
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return
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ctx.reset()
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ctx.clearRect(0, 0, width, height)
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// Solid white base (alpha=1)
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ctx.globalCompositeOperation = "source-over"
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ctx.fillStyle = "#ffffffff"
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// Fill the entire area with the corner color
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ctx.fillStyle = Qt.rgba(root.cornerColor.r, root.cornerColor.g, root.cornerColor.b, root.cornerColor.a)
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ctx.fillRect(0, 0, width, height)
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// Punch hole using destination-out with rounded rect path
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const x = Math.round(root.borderWidth / 2)
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const y = Math.round(root.borderWidth / 2)
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const w = Math.max(0, width - root.borderWidth)
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const h = Math.max(0, height - root.borderWidth)
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const r = Math.max(0, Math.min(root.innerRadius, Math.min(w, h) / 2))
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// Cut out the rounded corner using destination-out
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ctx.globalCompositeOperation = "destination-out"
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ctx.fillStyle = "#ffffffff"
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ctx.fillStyle = "#ffffff"
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ctx.beginPath()
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// rounded rectangle path using arcTo
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ctx.moveTo(x + r, y)
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ctx.lineTo(x + w - r, y)
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ctx.arcTo(x + w, y, x + w, y + r, r)
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ctx.lineTo(x + w, y + h - r)
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ctx.arcTo(x + w, y + h, x + w - r, y + h, r)
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ctx.lineTo(x + r, y + h)
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ctx.arcTo(x, y + h, x, y + h - r, r)
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ctx.lineTo(x, y + r)
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ctx.arcTo(x, y, x + r, y, r)
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ctx.closePath()
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ctx.arc(width, height, root.cornerRadius, 0, 2 * Math.PI)
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ctx.fill()
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}
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onWidthChanged: requestPaint()
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onHeightChanged: requestPaint()
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onWidthChanged: if (available)
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requestPaint()
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onHeightChanged: if (available)
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requestPaint()
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Connections {
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target: root
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function onCornerColorChanged() {
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if (topLeftCorner.available)
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topLeftCorner.requestPaint()
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}
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function onCornerRadiusChanged() {
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if (topLeftCorner.available)
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topLeftCorner.requestPaint()
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}
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}
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}
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// Repaint mask when properties change
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Connections {
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function onBorderWidthChanged() {
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maskSource.requestPaint()
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// Top-right concave corner
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Canvas {
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id: topRightCorner
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anchors.top: parent.top
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anchors.right: parent.right
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width: cornerSize
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height: cornerSize
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antialiasing: true
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renderTarget: Canvas.FramebufferObject
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smooth: true
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onPaint: {
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const ctx = getContext("2d")
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if (!ctx)
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return
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ctx.reset()
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ctx.clearRect(0, 0, width, height)
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ctx.fillStyle = Qt.rgba(root.cornerColor.r, root.cornerColor.g, root.cornerColor.b, root.cornerColor.a)
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ctx.fillRect(0, 0, width, height)
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ctx.globalCompositeOperation = "destination-out"
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ctx.fillStyle = "#ffffff"
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ctx.beginPath()
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ctx.arc(0, height, root.cornerRadius, 0, 2 * Math.PI)
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ctx.fill()
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}
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function onRingColorChanged() {}
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onWidthChanged: if (available)
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requestPaint()
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onHeightChanged: if (available)
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requestPaint()
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function onInnerRadiusChanged() {
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maskSource.requestPaint()
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Connections {
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target: root
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function onCornerColorChanged() {
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if (topRightCorner.available)
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topRightCorner.requestPaint()
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}
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function onCornerRadiusChanged() {
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if (topRightCorner.available)
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topRightCorner.requestPaint()
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}
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}
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}
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// Bottom-left concave corner
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Canvas {
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id: bottomLeftCorner
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anchors.bottom: parent.bottom
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anchors.left: parent.left
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width: cornerSize
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height: cornerSize
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antialiasing: true
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renderTarget: Canvas.FramebufferObject
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smooth: true
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onPaint: {
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const ctx = getContext("2d")
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if (!ctx)
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return
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ctx.reset()
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ctx.clearRect(0, 0, width, height)
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ctx.fillStyle = Qt.rgba(root.cornerColor.r, root.cornerColor.g, root.cornerColor.b, root.cornerColor.a)
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ctx.fillRect(0, 0, width, height)
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ctx.globalCompositeOperation = "destination-out"
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ctx.fillStyle = "#ffffff"
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ctx.beginPath()
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ctx.arc(width, 0, root.cornerRadius, 0, 2 * Math.PI)
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ctx.fill()
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}
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target: root
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onWidthChanged: if (available)
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requestPaint()
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onHeightChanged: if (available)
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requestPaint()
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Connections {
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target: root
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function onCornerColorChanged() {
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if (bottomLeftCorner.available)
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bottomLeftCorner.requestPaint()
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}
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function onCornerRadiusChanged() {
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if (bottomLeftCorner.available)
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bottomLeftCorner.requestPaint()
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}
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}
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}
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// Texture for maskSource; hides the original
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ShaderEffectSource {
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id: maskTexture
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// Bottom-right concave corner
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Canvas {
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id: bottomRightCorner
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anchors.bottom: parent.bottom
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anchors.right: parent.right
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width: cornerSize
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height: cornerSize
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antialiasing: true
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renderTarget: Canvas.FramebufferObject
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smooth: true
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anchors.fill: parent
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sourceItem: maskSource
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hideSource: true
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live: true
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visible: false
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}
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onPaint: {
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const ctx = getContext("2d")
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if (!ctx)
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return
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// Apply mask to show only the ring area
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MultiEffect {
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anchors.fill: parent
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source: overlayTexture
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maskEnabled: true
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maskSource: maskTexture
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maskInverted: false
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maskSpreadAtMax: 0.75
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ctx.reset()
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ctx.clearRect(0, 0, width, height)
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ctx.fillStyle = Qt.rgba(root.cornerColor.r, root.cornerColor.g, root.cornerColor.b, root.cornerColor.a)
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ctx.fillRect(0, 0, width, height)
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ctx.globalCompositeOperation = "destination-out"
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ctx.fillStyle = "#ffffff"
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ctx.beginPath()
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ctx.arc(0, 0, root.cornerRadius, 0, 2 * Math.PI)
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ctx.fill()
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}
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onWidthChanged: if (available)
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requestPaint()
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onHeightChanged: if (available)
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requestPaint()
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Connections {
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target: root
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function onCornerColorChanged() {
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if (bottomRightCorner.available)
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bottomRightCorner.requestPaint()
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}
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function onCornerRadiusChanged() {
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if (bottomRightCorner.available)
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bottomRightCorner.requestPaint()
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}
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}
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}
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mask: Region {}
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