Normalize bar icon size and alignment

2026-10-11 21:39:17 +02:00
1 parent e71a816e90
commit 201de1c0d6
@@ -0,0 +1,115 @@
+import QtQuick
+import QtQuick.Shapes
+
+Item {
+  id: root
+
+  property Item sourceItem: null
+  property Item boundsParent: null
+  property rect mappedBounds: Qt.rect(0, 0, 0, 0)
+  visible: false
+
+  readonly property bool textItem: sourceItem instanceof Text
+  readonly property bool imageItem: sourceItem instanceof Image
+  readonly property bool boxItem: sourceItem instanceof Rectangle
+    || sourceItem instanceof Shape || sourceItem instanceof Canvas || sourceItem instanceof ShaderEffect
+
+  function unionBounds(a, b) {
+    if (b.width <= 0 || b.height <= 0) return a
+    if (a.width <= 0 || a.height <= 0) return b
+    var x = Math.min(a.x, b.x)
+    var y = Math.min(a.y, b.y)
+    return Qt.rect(x, y, Math.max(a.x + a.width, b.x + b.width) - x,
+      Math.max(a.y + a.height, b.y + b.height) - y)
+  }
+
+  readonly property rect paintedBounds: {
+    var item = sourceItem
+    var bounds = Qt.rect(0, 0, 0, 0)
+    if (!item || !item.visible || item.opacity <= 0) return bounds
+    if (textItem) {
+      var ink = textMetrics.tightBoundingRect
+      bounds = Qt.rect(ink.x, item.baselineOffset + ink.y, ink.width, ink.height)
+    } else if (imageItem) {
+      var w = item.paintedWidth
+      var h = item.paintedHeight
+      var x = item.horizontalAlignment === Image.AlignLeft ? 0
+        : (item.horizontalAlignment === Image.AlignRight ? item.width - w : (item.width - w) / 2)
+      var y = item.verticalAlignment === Image.AlignTop ? 0
+        : (item.verticalAlignment === Image.AlignBottom ? item.height - h : (item.height - h) / 2)
+      if (item.fillMode === Image.PreserveAspectFit) {
+        bounds = Qt.rect(x, y, w, h)
+      } else if (item.fillMode === Image.Pad) {
+        var left = Math.max(0, x)
+        var top = Math.max(0, y)
+        bounds = Qt.rect(left, top, Math.max(0, Math.min(item.width, x + w) - left),
+          Math.max(0, Math.min(item.height, y + h) - top))
+      } else {
+        bounds = Qt.rect(0, 0, item.width, item.height)
+      }
+    } else if (boxItem) {
+      bounds = Qt.rect(0, 0, item.width, item.height)
+    }
+    for (var i = 0; i < childrenBounds.count; i++) {
+      var child = childrenBounds.itemAt(i)
+      if (child) bounds = unionBounds(bounds, child.mappedBounds)
+    }
+    if (item.clip && bounds.width > 0 && bounds.height > 0) {
+      var left = Math.max(0, bounds.x)
+      var top = Math.max(0, bounds.y)
+      bounds = Qt.rect(left, top,
+        Math.max(0, Math.min(item.width, bounds.x + bounds.width) - left),
+        Math.max(0, Math.min(item.height, bounds.y + bounds.height) - top))
+    }
+    return bounds
+  }
+
+  function updateMappedBounds() {
+    var b = paintedBounds
+    mappedBounds = sourceItem && boundsParent && b.width > 0 && b.height > 0
+      ? sourceItem.mapToItem(boundsParent, b.x, b.y, b.width, b.height)
+      : b
+  }
+
+  function configureSource() {
+    if (sourceItem instanceof Text) sourceItem.renderType = Text.CurveRendering
+    updateMappedBounds()
+  }
+
+  onPaintedBoundsChanged: updateMappedBounds()
+  onSourceItemChanged: configureSource()
+  onBoundsParentChanged: updateMappedBounds()
+  Component.onCompleted: updateMappedBounds()
+
+  TextMetrics {
+    id: textMetrics
+    font: root.textItem ? root.sourceItem.font : Qt.font({ pixelSize: 12 })
+    text: root.textItem ? root.sourceItem.text : ""
+  }
+
+  Connections {
+    target: root.sourceItem
+    function onXChanged() { root.updateMappedBounds() }
+    function onYChanged() { root.updateMappedBounds() }
+    function onWidthChanged() { root.updateMappedBounds() }
+    function onHeightChanged() { root.updateMappedBounds() }
+    function onScaleChanged() { root.updateMappedBounds() }
+    function onRotationChanged() { root.updateMappedBounds() }
+    function onTransformOriginChanged() { root.updateMappedBounds() }
+  }
+
+  Repeater {
+    id: childrenBounds
+    model: root.sourceItem ? root.sourceItem.children : []
+    delegate: Loader {
+      id: childLoader
+      required property var modelData
+      readonly property rect mappedBounds: item ? item.mappedBounds : Qt.rect(0, 0, 0, 0)
+      source: Qt.resolvedUrl("IconContentBounds.qml")
+      onLoaded: {
+        item.sourceItem = Qt.binding(function() { return childLoader.modelData })
+        item.boundsParent = Qt.binding(function() { return root.sourceItem })
+      }
+    }
+  }
+}