Files
OpenRA/OpenRA.Mods.Cnc/Widgets/ResourceBarWidget.cs
2012-09-25 19:44:20 +12:00

85 lines
2.4 KiB
C#
Executable File

#region Copyright & License Information
/*
* Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
* This file is part of OpenRA, which is free software. It is made
* available to you under the terms of the GNU General Public License
* as published by the Free Software Foundation. For more information,
* see COPYING.
*/
#endregion
using System;
using System.Drawing;
using OpenRA.FileFormats;
using OpenRA.Graphics;
using OpenRA.Traits;
using OpenRA.Widgets;
namespace OpenRA.Mods.Cnc.Widgets
{
public class ResourceBarWidget : Widget
{
public readonly string TooltipTemplate = "SIMPLE_TOOLTIP";
public readonly string TooltipContainer;
Lazy<TooltipContainerWidget> tooltipContainer;
public float LowStorageThreshold = 0.8f;
EWMA providedLerp = new EWMA(0.3f);
EWMA usedLerp = new EWMA(0.3f);
public Func<float> GetProvided = () => 0;
public Func<float> GetUsed = () => 0;
public string TooltipFormat = "";
public bool RightIndicator = false;
public Func<Color> GetBarColor = () => Color.White;
[ObjectCreator.UseCtor]
public ResourceBarWidget(World world)
{
tooltipContainer = Lazy.New(() =>
Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
}
public override void MouseEntered()
{
if (TooltipContainer == null) return;
Func<string> getText = () => TooltipFormat.F(GetUsed(), GetProvided());
tooltipContainer.Value.SetTooltip(TooltipTemplate, new WidgetArgs() {{ "getText", getText }});
}
public override void MouseExited()
{
if (TooltipContainer == null) return;
tooltipContainer.Value.RemoveTooltip();
}
public override void Draw()
{
var scaleBy = 100.0f;
var provided = GetProvided();
var used = GetUsed();
var max = Math.Max(provided, used);
while (max >= scaleBy) scaleBy *= 2;
var providedFrac = providedLerp.Update(provided/scaleBy);
var usedFrac = usedLerp.Update(used/scaleBy);
var color = GetBarColor();
var b = RenderBounds;
var rect = new RectangleF(b.X, float2.Lerp( b.Bottom, b.Top, providedFrac ),
b.Width, providedFrac*b.Height);
Game.Renderer.LineRenderer.FillRect(rect, color);
var indicator = ChromeProvider.GetImage("sidebar-bits",
RightIndicator ? "right-indicator" : "left-indicator");
var indicatorX = RightIndicator ? (b.Right - indicator.size.X) : b.Left;
var pos = new float2(indicatorX, float2.Lerp( b.Bottom, b.Top, usedFrac ) - indicator.size.Y / 2);
Game.Renderer.RgbaSpriteRenderer.DrawSprite(indicator, pos);
}
}
}