255 lines
7.3 KiB
C#
255 lines
7.3 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
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* This file is part of OpenRA.
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*
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* OpenRA is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OpenRA is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
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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.FileFormats;
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using OpenRA.Widgets.Delegates;
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namespace OpenRA.Widgets
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{
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public abstract class Widget
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{
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// Info defined in YAML
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public string Id = null;
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public string X = "0";
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public string Y = "0";
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public string Width = "0";
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public string Height = "0";
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public string Delegate = null;
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public bool ClickThrough = false;
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public bool Visible = true;
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public readonly List<Widget> Children = new List<Widget>();
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// Calculated internally
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public Rectangle Bounds;
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public Widget Parent = null;
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static List<string> Delegates = new List<string>();
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public static Stack<string> WindowList = new Stack<string>();
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// Common Funcs that most widgets will want
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public Action<object> SpecialOneArg = (arg) => {};
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public Func<MouseInput,bool> OnMouseDown = mi => {return false;};
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public Func<MouseInput,bool> OnMouseUp = mi => {return false;};
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public Func<MouseInput,bool> OnMouseMove = mi => {return false;};
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public Func<System.Windows.Forms.KeyPressEventArgs, Modifiers,bool> OnKeyPress = (e,modifiers) => {return false;};
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public Func<bool> IsVisible;
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public Widget() { IsVisible = () => Visible; }
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public Widget(Widget widget)
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{
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Id = widget.Id;
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X = widget.X;
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Y = widget.Y;
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Width = widget.Width;
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Height = widget.Height;
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Delegate = widget.Delegate;
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ClickThrough = widget.ClickThrough;
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Visible = widget.Visible;
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Bounds = widget.Bounds;
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Parent = widget.Parent;
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OnMouseDown = widget.OnMouseDown;
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OnMouseUp = widget.OnMouseUp;
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OnMouseMove = widget.OnMouseMove;
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OnKeyPress = widget.OnKeyPress;
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IsVisible = widget.IsVisible;
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foreach(var child in widget.Children)
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AddChild(child.Clone());
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}
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public abstract Widget Clone();
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public virtual int2 RenderOrigin
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{
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get {
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var offset = (Parent == null) ? int2.Zero : Parent.ChildOrigin;
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return new int2(Bounds.X, Bounds.Y) + offset;
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}
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}
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public virtual int2 ChildOrigin { get { return RenderOrigin; } }
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public virtual Rectangle RenderBounds { get { return new Rectangle(RenderOrigin.X, RenderOrigin.Y, Bounds.Width, Bounds.Height); } }
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public virtual void Initialize()
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{
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// Parse the YAML equations to find the widget bounds
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Rectangle parentBounds = (Parent == null)
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? new Rectangle(0,0,Game.viewport.Width,Game.viewport.Height)
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: Parent.Bounds;
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Dictionary<string, int> substitutions = new Dictionary<string, int>();
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substitutions.Add("WINDOW_RIGHT", Game.viewport.Width);
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substitutions.Add("WINDOW_BOTTOM", Game.viewport.Height);
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substitutions.Add("PARENT_RIGHT", parentBounds.Width);
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substitutions.Add("PARENT_LEFT", parentBounds.Left);
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substitutions.Add("PARENT_TOP", parentBounds.Top);
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substitutions.Add("PARENT_BOTTOM", parentBounds.Height);
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int width = Evaluator.Evaluate(Width, substitutions);
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int height = Evaluator.Evaluate(Height, substitutions);
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substitutions.Add("WIDTH", width);
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substitutions.Add("HEIGHT", height);
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Bounds = new Rectangle(Evaluator.Evaluate(X, substitutions),
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Evaluator.Evaluate(Y, substitutions),
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width,
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height);
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// Non-static func definitions
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if (Delegate != null && !Delegates.Contains(Delegate))
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Delegates.Add(Delegate);
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foreach (var child in Children)
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child.Initialize();
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}
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public void InitDelegates()
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{
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foreach(var d in Delegates)
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Game.CreateObject<IWidgetDelegate>(d);
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}
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public bool HitTest(int2 xy)
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{
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if (!IsVisible()) return false;
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if (RenderBounds.Contains(xy.ToPoint()) && !ClickThrough) return true;
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return Children.Any(c => c.HitTest(xy));
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}
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public Rectangle GetEventBounds()
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{
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return Children
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.Where(c => c.Visible)
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.Select(c => c.GetEventBounds())
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.Aggregate(RenderBounds, Rectangle.Union);
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}
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public virtual bool HandleInput(MouseInput mi)
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{
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// Are we able to handle this event?
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if (!IsVisible() || !GetEventBounds().Contains(mi.Location.X,mi.Location.Y))
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return false;
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// Can any of our children handle this?
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foreach (var child in Children)
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if (child.HandleInput(mi))
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return true;
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if (mi.Event == MouseInputEvent.Down) return OnMouseDown(mi);
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if (mi.Event == MouseInputEvent.Up) return OnMouseUp(mi);
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if (mi.Event == MouseInputEvent.Move) return OnMouseMove(mi);
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throw new InvalidOperationException("Impossible");
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}
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public virtual bool HandleKeyPress(System.Windows.Forms.KeyPressEventArgs e, Modifiers modifiers)
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{
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// Can any of our children handle this?
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foreach (var child in Children)
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if (child.HandleKeyPress(e, modifiers))
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return true;
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// Have we been assigned an action?
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return OnKeyPress(e,modifiers);
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}
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public abstract void DrawInner( World world );
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public void Draw(World world)
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{
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if (IsVisible())
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{
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DrawInner( world );
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foreach (var child in Children)
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child.Draw(world);
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}
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}
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public virtual void Tick(World world)
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{
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if (IsVisible())
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foreach (var child in Children)
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child.Tick(world);
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}
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public void AddChild(Widget child)
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{
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child.Parent = this;
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Children.Add( child );
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}
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public Widget GetWidget(string id)
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{
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if (this.Id == id)
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return this;
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foreach (var child in Children)
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{
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var w = child.GetWidget(id);
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if (w != null)
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return w;
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}
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return null;
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}
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public T GetWidget<T>(string id) where T : Widget
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{
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return (T)GetWidget(id);
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}
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public void CloseWindow()
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{
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Chrome.rootWidget.GetWidget(WindowList.Pop()).Visible = false;
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if (WindowList.Count > 0)
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Chrome.rootWidget.GetWidget(WindowList.Peek()).Visible = true;
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}
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public Widget OpenWindow(string id)
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{
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if (WindowList.Count > 0)
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Chrome.rootWidget.GetWidget(WindowList.Peek()).Visible = false;
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WindowList.Push(id);
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var window = Chrome.rootWidget.GetWidget(id);
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window.Visible = true;
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return window;
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}
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}
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class ContainerWidget : Widget {
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public ContainerWidget() : base() { }
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public ContainerWidget(Widget other) : base(other) { }
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public override void DrawInner( World world ) { }
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public override Widget Clone() { return new ContainerWidget(this); }
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}
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public interface IWidgetDelegate { }
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} |