ff16690b86
The managed byte buffer is created on demand, meaning a newly allocated sheet will not waste memory holding onto the buffer until some changes are actually required to be written. This avoids a newly allocated sheet wasting memory on buffers that do not differ from their backing texture.
62 lines
1.7 KiB
C#
62 lines
1.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
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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. For more information,
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* see COPYING.
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*/
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#endregion
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using System.Drawing;
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using System.Drawing.Imaging;
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using OpenRA.Graphics;
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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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public HueSliderWidget() { }
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public HueSliderWidget(HueSliderWidget other) : 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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using (var hueBitmap = new Bitmap(256, 256))
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{
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var hueSheet = new Sheet(new Size(256, 256));
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hueSprite = new Sprite(hueSheet, new Rectangle(0, 0, 256, 1), TextureChannel.Alpha);
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var bitmapData = hueBitmap.LockBits(hueBitmap.Bounds(),
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ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
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unsafe
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{
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var c = (int*)bitmapData.Scan0;
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for (var h = 0; h < 256; h++)
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*(c + h) = HSLColor.FromHSV(h / 255f, 1, 1).RGB.ToArgb();
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}
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hueBitmap.UnlockBits(bitmapData);
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hueSheet.Texture.SetData(hueBitmap);
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}
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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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Game.Renderer.RgbaSpriteRenderer.DrawSprite(hueSprite, ro, new float2(rb.Size));
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var sprite = ChromeProvider.GetImage("lobby-bits", "huepicker");
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var pos = RenderOrigin + new int2(PxFromValue(Value).Clamp(0, rb.Width - 1) - sprite.bounds.Width / 2, (rb.Height - sprite.bounds.Height) / 2);
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Game.Renderer.RgbaSpriteRenderer.DrawSprite(sprite, pos);
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}
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}
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}
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