105 lines
2.7 KiB
C#
105 lines
2.7 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2010 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 LICENSE.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using OpenRA.Orders;
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using OpenRA.Traits;
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using OpenRA.FileFormats;
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namespace OpenRA.Widgets
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{
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[Flags]
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public enum ScrollDirection
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{
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None = 0,
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Up = 1,
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Left = 2,
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Down = 4,
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Right = 8
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}
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class ViewportScrollControllerWidget : Widget
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{
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public ViewportScrollControllerWidget() : base() {}
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protected ViewportScrollControllerWidget(ViewportScrollControllerWidget widget) : base(widget) {}
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public override void DrawInner( World world ) {}
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ScrollDirection Scroll;
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public override bool HandleInputInner(MouseInput mi)
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{
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if (mi.Event == MouseInputEvent.Move &&
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(mi.Button == MouseButton.Middle || mi.Button == (MouseButton.Left | MouseButton.Right)))
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{
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Game.viewport.Scroll(Widget.LastMousePos - mi.Location);
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return true;
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}
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return false;
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}
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public override string GetCursor(int2 pos)
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{
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return null;
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}
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public override bool LoseFocus (MouseInput mi)
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{
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Scroll = ScrollDirection.None;
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return base.LoseFocus(mi);
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}
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public override bool HandleKeyPressInner(KeyInput e)
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{
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switch (e.KeyName)
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{
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case "up": Scroll = Scroll.Set(ScrollDirection.Up, (e.Event == KeyInputEvent.Down)); return true;
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case "down": Scroll = Scroll.Set(ScrollDirection.Down, (e.Event == KeyInputEvent.Down)); return true;
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case "left": Scroll = Scroll.Set(ScrollDirection.Left, (e.Event == KeyInputEvent.Down)); return true;
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case "right": Scroll = Scroll.Set(ScrollDirection.Right, (e.Event == KeyInputEvent.Down)); return true;
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}
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return false;
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}
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public override void Tick(World world)
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{
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var scroll = new float2(0,0);
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if (Scroll.Includes(ScrollDirection.Up))
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scroll += new float2(0, -10);
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if (Scroll.Includes(ScrollDirection.Right))
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scroll += new float2(10, 0);
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if (Scroll.Includes(ScrollDirection.Down))
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scroll += new float2(0, 10);
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if (Scroll.Includes(ScrollDirection.Left))
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scroll += new float2(-10, 0);
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Game.viewport.Scroll(scroll);
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}
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public override Widget Clone() { return new ViewportScrollControllerWidget(this); }
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}
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public static class ViewportExts
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{
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public static bool Includes(this ScrollDirection d, ScrollDirection s)
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{
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return (d & s) == s;
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}
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public static ScrollDirection Set(this ScrollDirection d, ScrollDirection s, bool val)
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{
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return (d.Includes(s) != val) ? d ^ s : d;
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}
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}
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} |