127 lines
2.8 KiB
C#
Executable File
127 lines
2.8 KiB
C#
Executable File
#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.Drawing;
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using OpenRA.Graphics;
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namespace OpenRA.Widgets
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{
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public class ScrollingTextWidget : Widget
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{
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public string Text = "";
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private string ScrollingText = "";
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public string Background = null;
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public bool Bold = false;
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public int ScrollLength = 200;
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// ticks per single letter scroll
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public int ScrollRate = 4;
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private string ScrollBuffer = "";
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private int ScrollLocation = 0;
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private int ScrollTick = 0;
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public Func<string> GetText;
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public Func<string> GetBackground;
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public ScrollingTextWidget()
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: base()
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{
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GetText = () => Text;
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GetBackground = () => Background;
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}
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protected ScrollingTextWidget(ScrollingTextWidget other)
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: base(other)
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{
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Text = other.Text;
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GetText = other.GetText;
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Bold = other.Bold;
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GetBackground = other.GetBackground;
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}
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public override void Tick()
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{
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if (Text != "")
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{
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ScrollingText = Text;
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Text = "";
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}
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UpdateScrollBuffer();
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}
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public void ResetScroll()
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{
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ScrollLocation = 0;
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ScrollTick = 0;
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}
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private void UpdateScrollBuffer()
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{
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ScrollTick++;
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if (ScrollTick < ScrollRate)
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{
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return;
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}
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ScrollTick = 0;
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ScrollBuffer = "";
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if (ScrollingText.Substring(ScrollingText.Length - 4, 3) != " ")
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{
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ScrollingText += " ";
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}
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int tempScrollLocation = ScrollLocation;
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for (int i = 0; i < ScrollLength; ++i)
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{
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ScrollBuffer += ScrollingText.Substring(tempScrollLocation, 1);
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tempScrollLocation = (tempScrollLocation + 1) % ScrollingText.Length;
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}
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ScrollLocation = (ScrollLocation + 1) % ScrollingText.Length;
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}
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public void SetText(string newText)
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{
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Text = newText.Replace("\n", " ");
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Text = Text.Replace("\r", "");
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}
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public override void DrawInner()
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{
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var bg = GetBackground();
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if (bg != null)
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WidgetUtils.DrawPanel(bg, RenderBounds);
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var font = (Bold) ? Game.Renderer.BoldFont : Game.Renderer.RegularFont;
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var text = GetText();
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if (text == null)
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return;
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int2 textSize = font.Measure(text);
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int2 position = RenderOrigin + new int2(0, (Bounds.Height - textSize.Y) / 2);
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Game.Renderer.EnableScissor(position.X, position.Y, Bounds.Width, Bounds.Height);
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font.DrawText(ScrollBuffer, position, Color.White);
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Game.Renderer.DisableScissor();
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}
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public override Widget Clone() { return new ScrollingTextWidget(this); }
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}
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}
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