opt player bottom bar

Signed-off-by: dom <githubaccount56556@proton.me>

lib/common/widgets/custom_height_widget.dart

@@ -57,7 +57,7 @@ class RenderCustomHeightWidget extends RenderProxyBox {
 
   @override
   void performLayout() {
-    child!.layout(constraints, parentUsesSize: true);
+    child!.layout(constraints);
     size = constraints.constrainDimensions(constraints.maxWidth, height);
   }
 

lib/common/widgets/image/custom_grid_view.dart

@@ -415,7 +415,7 @@ class RenderImageGrid extends RenderBox
     while (child != null) {
       final childParentData = child.parentData as MultiChildLayoutParentData;
       final index = childParentData.id as int;
-      child.layout(itemConstraints, parentUsesSize: true);
+      child.layout(itemConstraints);
       childParentData.offset = Offset(
         (space + width) * (index % column),
         (space + height) * (index ~/ column),

lib/common/widgets/player_bar.dart

@@ -0,0 +1,133 @@
+/*
+ * This file is part of PiliPlus
+ *
+ * PiliPlus is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PiliPlus is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with PiliPlus.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import 'dart:math' as math;
+
+import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart'
+    show
+        ContainerRenderObjectMixin,
+        MultiChildLayoutParentData,
+        RenderBoxContainerDefaultsMixin,
+        BoxHitTestResult;
+
+class PlayerBar extends MultiChildRenderObjectWidget {
+  const PlayerBar({
+    super.key,
+    super.children,
+  });
+
+  @override
+  RenderObject createRenderObject(BuildContext context) {
+    return RenderBottomBar();
+  }
+}
+
+class RenderBottomBar extends RenderBox
+    with
+        ContainerRenderObjectMixin<RenderBox, MultiChildLayoutParentData>,
+        RenderBoxContainerDefaultsMixin<RenderBox, MultiChildLayoutParentData> {
+  @override
+  void setupParentData(RenderBox child) {
+    if (child.parentData is! MultiChildLayoutParentData) {
+      child.parentData = MultiChildLayoutParentData();
+    }
+  }
+
+  Matrix4? _transform;
+
+  @override
+  void performLayout() {
+    _transform = null;
+
+    final c = constraints.copyWith(maxWidth: .infinity);
+    final RenderBox first = firstChild!..layout(c, parentUsesSize: true);
+    final RenderBox last = lastChild!..layout(c, parentUsesSize: true);
+
+    final firstSize = first.size;
+    final lastSize = last.size;
+
+    final firstParentData = first.parentData as MultiChildLayoutParentData;
+    final lastParentData = last.parentData as MultiChildLayoutParentData;
+
+    final firstWidth = firstSize.width;
+    final lastWidth = lastSize.width;
+    final totalWidth = firstWidth + lastWidth;
+    final maxWidth = constraints.maxWidth;
+    final height = math.max(firstSize.height, lastSize.height);
+    size = constraints.constrainDimensions(maxWidth, height);
+
+    firstParentData.offset = Offset(0.0, (height - firstSize.height) / 2);
+    if (totalWidth <= maxWidth) {
+      lastParentData.offset = Offset(
+        maxWidth - lastWidth,
+        (height - lastSize.height) / 2,
+      );
+    } else {
+      final scale = maxWidth / totalWidth;
+      _transform = Matrix4.identity()
+        ..translateByDouble(0.0, height * (1 - scale) / 2, 0.0, 1.0)
+        ..scaleByDouble(scale, scale, scale, 1.0);
+      lastParentData.offset = Offset(
+        (maxWidth - lastWidth * scale) / scale,
+        (height - lastSize.height) / 2,
+      );
+    }
+  }
+
+  void _paintChild(PaintingContext context, Offset offset) {
+    RenderBox? child = firstChild;
+    while (child != null) {
+      final childParentData = child.parentData as MultiChildLayoutParentData;
+      context.paintChild(child, childParentData.offset + offset);
+      child = childParentData.nextSibling;
+    }
+  }
+
+  @override
+  void paint(PaintingContext context, Offset offset) {
+    if (_transform != null) {
+      context.pushTransform(needsCompositing, offset, _transform!, _paintChild);
+    } else {
+      _paintChild(context, offset);
+    }
+  }
+
+  @override
+  bool hitTestChildren(BoxHitTestResult result, {required Offset position}) {
+    return result.addWithPaintTransform(
+      transform: _transform,
+      position: position,
+      hitTest: (BoxHitTestResult result, Offset position) {
+        return defaultHitTestChildren(result, position: position);
+      },
+    );
+  }
+
+  @override
+  void applyPaintTransform(RenderBox child, Matrix4 transform) {
+    final childParentData = child.parentData! as MultiChildLayoutParentData;
+    final Offset offset = childParentData.offset;
+    if (_transform != null) {
+      transform
+        ..translateByDouble(offset.dx * _transform!.storage[0], offset.dy, 0, 1)
+        ..multiply(_transform!);
+    } else {
+      transform.translateByDouble(offset.dx, offset.dy, 0, 1);
+    }
+  }
+}