63 lines
1.8 KiB
C#
63 lines
1.8 KiB
C#
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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namespace FlaxEngine.GUI
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{
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/// <summary>
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/// This panel arranges child controls vertically.
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/// </summary>
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/// <seealso cref="FlaxEngine.GUI.PanelWithMargins" />
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public class VerticalPanel : PanelWithMargins
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="VerticalPanel"/> class.
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/// </summary>
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public VerticalPanel()
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{
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}
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/// <inheritdoc />
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protected override void PerformLayoutBeforeChildren()
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{
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base.PerformLayoutBeforeChildren();
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// Pre-set width of all controls
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float w = Width - _margin.Width;
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for (int i = 0; i < _children.Count; i++)
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{
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Control c = _children[i];
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if (c.Visible)
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{
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c.Width = w;
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}
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}
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}
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/// <inheritdoc />
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protected override void PerformLayoutAfterChildren()
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{
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// Sort controls from top to bottom
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float y = _margin.Top;
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float w = Width - _margin.Width;
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bool hasAnyItem = false;
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for (int i = 0; i < _children.Count; i++)
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{
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Control c = _children[i];
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if (c.Visible)
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{
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var h = c.Height;
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c.Bounds = new Rectangle(_margin.Left + _offset.X, y + _offset.Y, w, h);
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y = c.Bottom + _spacing;
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hasAnyItem = true;
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}
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}
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if (hasAnyItem)
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y -= _spacing;
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y += _margin.Bottom;
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// Update size
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if (_autoSize)
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Height = y;
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}
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}
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}
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