75 lines
1.8 KiB
C#
75 lines
1.8 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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using OpenRA.Widgets;
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namespace OpenRA.Mods.Common.Widgets
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{
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public class HueSliderWidget : SliderWidget
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{
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Sprite hueSprite;
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Sprite pickerSprite;
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Sheet hueSheet;
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public HueSliderWidget() { }
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public HueSliderWidget(HueSliderWidget other)
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: base(other) { }
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public override void Initialize(WidgetArgs args)
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{
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base.Initialize(args);
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hueSheet = new Sheet(SheetType.BGRA, new Size(256, 1));
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var buffer = new byte[4 * 256];
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unsafe
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{
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fixed (byte* cc = &buffer[0])
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{
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var c = (uint*)cc;
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for (var h = 0; h < 256; h++)
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{
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*(c + 0 * 256 + h) = Color.FromAhsv(h / 255f, 1, 1).ToArgb();
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}
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}
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}
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var rect = new Rectangle(0, 0, 256, 1);
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hueSprite = new Sprite(hueSheet, new Rectangle(0, 0, 256, 1), TextureChannel.RGBA);
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hueSheet.GetTexture().SetData(buffer, 256, 1);
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pickerSprite = ChromeProvider.GetImage("lobby-bits", "huepicker");
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}
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public override void Draw()
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{
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if (!IsVisible())
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return;
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var ro = RenderOrigin;
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var rb = RenderBounds;
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WidgetUtils.DrawSprite(hueSprite, ro, rb.Size);
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var pos = RenderOrigin + new int2(PxFromValue(Value).Clamp(0, rb.Width - 1) - (int)pickerSprite.Size.X / 2, (rb.Height - (int)pickerSprite.Size.Y) / 2);
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WidgetUtils.DrawSprite(pickerSprite, pos);
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}
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public override void Removed()
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{
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hueSheet?.Dispose();
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base.Removed();
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}
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}
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}
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