236 lines
7.0 KiB
C#
236 lines
7.0 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;
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using System.Drawing;
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namespace OpenRA.Widgets
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{
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public class ButtonWidget : Widget
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{
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public Func<ButtonWidget, Hotkey> GetKey = _ => Hotkey.Invalid;
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public Hotkey Key
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{
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get { return GetKey(this); }
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set { GetKey = _ => value; }
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}
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[Translate] public string Text = "";
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public string Background = "button";
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public bool Depressed = false;
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public int VisualHeight = ChromeMetrics.Get<int>("ButtonDepth");
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public string Font = ChromeMetrics.Get<string>("ButtonFont");
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public Color TextColor = ChromeMetrics.Get<Color>("ButtonTextColor");
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public Color TextColorDisabled = ChromeMetrics.Get<Color>("ButtonTextColorDisabled");
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public bool Contrast = ChromeMetrics.Get<bool>("ButtonTextContrast");
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public Color ContrastColor = ChromeMetrics.Get<Color>("ButtonTextContrastColor");
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public bool Disabled = false;
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public bool Highlighted = false;
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public Func<string> GetText;
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public Func<Color> GetColor;
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public Func<Color> GetColorDisabled;
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public Func<Color> GetContrastColor;
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public Func<bool> IsDisabled;
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public Func<bool> IsHighlighted;
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public Action<MouseInput> OnMouseDown = _ => {};
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public Action<MouseInput> OnMouseUp = _ => {};
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Lazy<TooltipContainerWidget> tooltipContainer;
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public readonly string TooltipContainer;
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public readonly string TooltipTemplate = "BUTTON_TOOLTIP";
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[Translate] public string TooltipText;
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// Equivalent to OnMouseUp, but without an input arg
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public Action OnClick = () => {};
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public Action OnDoubleClick = () => {};
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public Action<KeyInput> OnKeyPress = _ => {};
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readonly Ruleset modRules;
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[ObjectCreator.UseCtor]
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public ButtonWidget(Ruleset modRules)
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{
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this.modRules = modRules;
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GetText = () => Text;
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GetColor = () => TextColor;
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GetColorDisabled = () => TextColorDisabled;
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GetContrastColor = () => ContrastColor;
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OnMouseUp = _ => OnClick();
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OnKeyPress = _ => OnClick();
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IsDisabled = () => Disabled;
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IsHighlighted = () => Highlighted;
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tooltipContainer = Exts.Lazy(() =>
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Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
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}
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protected ButtonWidget(ButtonWidget other)
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: base(other)
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{
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this.modRules = other.modRules;
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Text = other.Text;
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Font = other.Font;
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TextColor = other.TextColor;
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TextColorDisabled = other.TextColorDisabled;
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Contrast = other.Contrast;
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ContrastColor = other.ContrastColor;
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Depressed = other.Depressed;
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Background = other.Background;
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VisualHeight = other.VisualHeight;
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GetText = other.GetText;
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GetColor = other.GetColor;
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GetColorDisabled = other.GetColorDisabled;
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GetContrastColor = other.GetContrastColor;
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OnMouseDown = other.OnMouseDown;
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Disabled = other.Disabled;
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IsDisabled = other.IsDisabled;
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Highlighted = other.Highlighted;
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IsHighlighted = other.IsHighlighted;
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OnMouseUp = mi => OnClick();
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OnKeyPress = _ => OnClick();
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TooltipTemplate = other.TooltipTemplate;
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TooltipText = other.TooltipText;
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TooltipContainer = other.TooltipContainer;
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tooltipContainer = Exts.Lazy(() =>
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Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
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}
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public override bool YieldMouseFocus(MouseInput mi)
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{
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Depressed = false;
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return base.YieldMouseFocus(mi);
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}
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public override bool HandleKeyPress(KeyInput e)
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{
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if (Hotkey.FromKeyInput(e) != Key || e.Event != KeyInputEvent.Down)
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return false;
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if (!IsDisabled())
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{
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OnKeyPress(e);
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Sound.PlayNotification(modRules, null, "Sounds", "ClickSound", null);
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}
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else
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Sound.PlayNotification(modRules, null, "Sounds", "ClickDisabledSound", null);
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return true;
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}
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public override bool HandleMouseInput(MouseInput mi)
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{
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if (mi.Button != MouseButton.Left)
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return false;
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if (mi.Event == MouseInputEvent.Down && !TakeMouseFocus(mi))
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return false;
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var disabled = IsDisabled();
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if (HasMouseFocus && mi.Event == MouseInputEvent.Up && mi.MultiTapCount == 2)
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{
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if (!disabled)
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{
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OnDoubleClick();
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return YieldMouseFocus(mi);
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}
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}
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// Only fire the onMouseUp event if we successfully lost focus, and were pressed
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else if (HasMouseFocus && mi.Event == MouseInputEvent.Up)
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{
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if (Depressed && !disabled)
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OnMouseUp(mi);
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return YieldMouseFocus(mi);
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}
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if (mi.Event == MouseInputEvent.Down)
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{
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// OnMouseDown returns false if the button shouldn't be pressed
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if (!disabled)
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{
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OnMouseDown(mi);
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Depressed = true;
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Sound.PlayNotification(modRules, null, "Sounds", "ClickSound", null);
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}
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else
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{
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YieldMouseFocus(mi);
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Sound.PlayNotification(modRules, null, "Sounds", "ClickDisabledSound", null);
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}
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}
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else if (mi.Event == MouseInputEvent.Move && HasMouseFocus)
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Depressed = RenderBounds.Contains(mi.Location);
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return Depressed;
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}
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public override void MouseEntered()
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{
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if (TooltipContainer == null) return;
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tooltipContainer.Value.SetTooltip(TooltipTemplate,
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new WidgetArgs() {{ "button", this }});
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}
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public override void MouseExited()
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{
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if (TooltipContainer == null) return;
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tooltipContainer.Value.RemoveTooltip();
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}
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public override int2 ChildOrigin { get { return RenderOrigin +
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((Depressed) ? new int2(VisualHeight, VisualHeight) : new int2(0, 0)); } }
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public override void Draw()
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{
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var rb = RenderBounds;
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var disabled = IsDisabled();
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var highlighted = IsHighlighted();
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var font = Game.Renderer.Fonts[Font];
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var text = GetText();
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var color = GetColor();
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var colordisabled = GetColorDisabled();
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var contrast = GetContrastColor();
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var s = font.Measure(text);
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var stateOffset = (Depressed) ? new int2(VisualHeight, VisualHeight) : new int2(0, 0);
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var position = new int2(rb.X + (UsableWidth - s.X) / 2, rb.Y + (Bounds.Height - s.Y) / 2);
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DrawBackground(rb, disabled, Depressed, Ui.MouseOverWidget == this, highlighted);
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if (Contrast)
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font.DrawTextWithContrast(text, position + stateOffset,
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disabled ? colordisabled : color, contrast, 2);
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else
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font.DrawText(text, position + stateOffset,
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disabled ? colordisabled : color);
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}
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public override Widget Clone() { return new ButtonWidget(this); }
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public virtual int UsableWidth { get { return Bounds.Width; } }
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public virtual void DrawBackground(Rectangle rect, bool disabled, bool pressed, bool hover, bool highlighted)
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{
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DrawBackground(Background, rect, disabled, pressed, hover, highlighted);
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}
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public static void DrawBackground(string baseName, Rectangle rect, bool disabled, bool pressed, bool hover, bool highlighted)
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{
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var variant = highlighted ? "-highlighted" : "";
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var state = disabled ? "-disabled" :
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pressed ? "-pressed" :
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hover ? "-hover" :
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"";
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WidgetUtils.DrawPanel(baseName + variant + state, rect);
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}
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}
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}
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