120 lines
3.8 KiB
C#
120 lines
3.8 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.Drawing;
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using OpenRA.Graphics;
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namespace OpenRA.Widgets
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{
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class ListBoxWidget : Widget
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{
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public readonly string Background = "dialog3";
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public readonly int ScrollbarWidth = 24;
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public readonly float ScrollVelocity = 4f;
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public readonly int HeaderHeight = 0;
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public int ContentHeight = 0;
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float ListOffset = 0;
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bool UpPressed = false;
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bool DownPressed = false;
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Rectangle upButtonRect;
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Rectangle downButtonRect;
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Rectangle backgroundRect;
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Rectangle scrollbarRect;
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public ListBoxWidget() : base() {}
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protected ListBoxWidget(ListBoxWidget other)
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: base(other)
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{
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Background = other.Background;
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upButtonRect = other.upButtonRect;
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downButtonRect = other.downButtonRect;
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scrollbarRect = other.scrollbarRect;
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backgroundRect = other.backgroundRect;
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UpPressed = other.UpPressed;
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DownPressed = other.DownPressed;
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}
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public override void DrawInner( WorldRenderer wr ) {}
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public override void Draw( WorldRenderer wr )
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{
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if (!IsVisible())
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return;
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backgroundRect = new Rectangle(RenderBounds.X, RenderBounds.Y, RenderBounds.Width - ScrollbarWidth, RenderBounds.Height);
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upButtonRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Y, ScrollbarWidth, ScrollbarWidth);
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downButtonRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Bottom - ScrollbarWidth, ScrollbarWidth, ScrollbarWidth);
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scrollbarRect = new Rectangle(RenderBounds.Right - ScrollbarWidth, RenderBounds.Y + ScrollbarWidth, ScrollbarWidth, RenderBounds.Height - 2 * ScrollbarWidth);
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string upButtonBg = (UpPressed) ? "dialog3" : "dialog2";
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string downButtonBg = (DownPressed) ? "dialog3" : "dialog2";
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string scrollbarBg = "dialog3";
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WidgetUtils.DrawPanel(Background, backgroundRect);
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WidgetUtils.DrawPanel(upButtonBg, upButtonRect);
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WidgetUtils.DrawPanel(downButtonBg, downButtonRect);
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WidgetUtils.DrawPanel(scrollbarBg, scrollbarRect);
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var upOffset = UpPressed ? 4 : 3;
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var downOffset = DownPressed ? 4 : 3;
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WidgetUtils.DrawRGBA(ChromeProvider.GetImage("scrollbar", "up_arrow"),
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new float2(upButtonRect.Left + upOffset, upButtonRect.Top + upOffset));
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WidgetUtils.DrawRGBA(ChromeProvider.GetImage("scrollbar", "down_arrow"),
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new float2(downButtonRect.Left + downOffset, downButtonRect.Top + downOffset));
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Game.Renderer.EnableScissor(backgroundRect.X, backgroundRect.Y + HeaderHeight, backgroundRect.Width, backgroundRect.Height - HeaderHeight);
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foreach (var child in Children)
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child.Draw( wr );
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Game.Renderer.DisableScissor();
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}
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public override int2 ChildOrigin { get { return RenderOrigin + new int2(0, (int)ListOffset); } }
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public override Rectangle GetEventBounds()
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{
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return EventBounds;
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}
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public override void Tick ()
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{
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if (UpPressed && ListOffset <= 0) ListOffset += ScrollVelocity;
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if (DownPressed) ListOffset -= ScrollVelocity;
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}
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public override bool LoseFocus (MouseInput mi)
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{
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UpPressed = DownPressed = false;
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return base.LoseFocus(mi);
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}
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public override bool HandleInputInner(MouseInput mi)
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{
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if (mi.Event == MouseInputEvent.Down && !TakeFocus(mi))
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return false;
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if (!Focused)
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return false;
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UpPressed = upButtonRect.Contains(mi.Location.X,mi.Location.Y);
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DownPressed = downButtonRect.Contains(mi.Location.X,mi.Location.Y);
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if (Focused && mi.Event == MouseInputEvent.Up)
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LoseFocus(mi);
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return (UpPressed || DownPressed);
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}
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public override Widget Clone() { return new ListBoxWidget(this); }
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}
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} |