125 lines
3.3 KiB
C#
125 lines
3.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2011 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.Collections.Generic;
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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 ButtonWidget : Widget
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{
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public string Text = "";
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public bool Depressed = false;
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public int VisualHeight = ChromeMetrics.GetInt("ButtonDepth");
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public string Font = ChromeMetrics.GetString("ButtonFont");
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public Func<string> GetText;
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public Func<bool> IsDisabled = () => false;
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public Action OnClick = () => {};
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[Obsolete] public bool Bold = false;
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public ButtonWidget()
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: base()
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{
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GetText = () => { return Text; };
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OnMouseUp = mi => { if (!IsDisabled()) OnClick(); return true; };
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}
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protected ButtonWidget(ButtonWidget widget)
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: base(widget)
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{
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Text = widget.Text;
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Font = widget.Font;
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Depressed = widget.Depressed;
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VisualHeight = widget.VisualHeight;
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GetText = widget.GetText;
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OnMouseUp = mi => { if (!IsDisabled()) OnClick(); return true; };
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}
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public override bool LoseFocus(MouseInput mi)
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{
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Depressed = false;
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return base.LoseFocus(mi);
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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 && !TakeFocus(mi))
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return false;
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// Only fire the onMouseUp event if we successfully lost focus, and were pressed
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if (Focused && mi.Event == MouseInputEvent.Up)
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{
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if (Depressed)
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OnMouseUp(mi);
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return LoseFocus(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 (!OnMouseDown(mi))
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Depressed = true;
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else
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LoseFocus(mi);
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}
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else if (mi.Event == MouseInputEvent.Move && Focused)
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{
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Depressed = RenderBounds.Contains(mi.Location.X, mi.Location.Y);
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// All widgets should receive MouseMove events
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OnMouseMove(mi);
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}
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return Depressed;
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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 DrawInner()
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{
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var rb = RenderBounds;
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var disabled = IsDisabled();
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if (Font == "Regular" && Bold)
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Font = "Bold";
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var font = Game.Renderer.Fonts[Font];
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var text = GetText();
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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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DrawBackground(rb, disabled, Depressed, rb.Contains(Viewport.LastMousePos));
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font.DrawText(text, new int2(rb.X + (UsableWidth - s.X)/ 2, rb.Y + (Bounds.Height - s.Y) / 2) + stateOffset,
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disabled ? Color.Gray : Color.White);
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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 static void DrawBackground(Rectangle rect, bool disabled, bool pressed, bool hover)
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{
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var state = disabled ? "button-disabled" :
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pressed ? "button-pressed" :
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hover ? "button-hover" :
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"button";
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WidgetUtils.DrawPanel(state, rect);
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}
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}
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} |