136 lines
3.8 KiB
C#
136 lines
3.8 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 DropDownButtonWidget : ButtonWidget
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{
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Widget panel;
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MaskWidget fullscreenMask;
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public DropDownButtonWidget()
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: base()
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{
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}
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protected DropDownButtonWidget(DropDownButtonWidget widget)
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: base(widget)
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{
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}
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public override void Draw()
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{
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base.Draw();
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var stateOffset = (Depressed) ? new int2(VisualHeight, VisualHeight) : new int2(0, 0);
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var image = ChromeProvider.GetImage("scrollbar", IsDisabled() ? "down_pressed" : "down_arrow");
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var rb = RenderBounds;
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WidgetUtils.DrawRGBA( image,
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stateOffset + new float2( rb.Right - rb.Height + 4,
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rb.Top + (rb.Height - image.bounds.Height) / 2 ));
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WidgetUtils.FillRectWithColor(new Rectangle(stateOffset.X + rb.Right - rb.Height,
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stateOffset.Y + rb.Top + 3, 1, rb.Height - 6),
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Color.White);
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}
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public override Widget Clone() { return new DropDownButtonWidget(this); }
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// This is crap
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public override int UsableWidth { get { return Bounds.Width - Bounds.Height; } } /* space for button */
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public override void Removed()
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{
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base.Removed();
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RemovePanel();
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}
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public void RemovePanel()
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{
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if (panel == null)
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return;
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Widget.RootWidget.RemoveChild(fullscreenMask);
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Widget.RootWidget.RemoveChild(panel);
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panel = fullscreenMask = null;
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}
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public void AttachPanel(Widget p)
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{
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if (panel != null)
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throw new InvalidOperationException("Attempted to attach a panel to an open dropdown");
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panel = p;
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// Mask to prevent any clicks from being sent to other widgets
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fullscreenMask = new MaskWidget();
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fullscreenMask.Bounds = new Rectangle(0, 0, Game.viewport.Width, Game.viewport.Height);
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fullscreenMask.OnMouseDown = mi => RemovePanel();
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Widget.RootWidget.AddChild(fullscreenMask);
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var oldBounds = panel.Bounds;
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panel.Bounds = new Rectangle(RenderOrigin.X, RenderOrigin.Y + Bounds.Height, oldBounds.Width, oldBounds.Height);
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Widget.RootWidget.AddChild(panel);
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}
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public void ShowDropDown<T>(string panelTemplate, int height, List<T> options, Func<T, ScrollItemWidget, ScrollItemWidget> setupItem)
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{
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var substitutions = new Dictionary<string,int>() {{ "DROPDOWN_WIDTH", Bounds.Width }};
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var panel = (ScrollPanelWidget)Widget.LoadWidget(panelTemplate, null, new WidgetArgs()
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{{ "substitutions", substitutions }});
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var itemTemplate = panel.GetWidget<ScrollItemWidget>("TEMPLATE");
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panel.RemoveChildren();
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foreach (var option in options)
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{
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var o = option;
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ScrollItemWidget item = setupItem(o, itemTemplate);
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var onClick = item.OnClick;
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item.OnClick = () => { onClick(); RemovePanel(); };
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panel.AddChild(item);
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}
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panel.Bounds.Height = Math.Min(height, panel.ContentHeight);
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AttachPanel(panel);
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}
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}
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public class MaskWidget : Widget
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{
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public Action<MouseInput> OnMouseDown = _ => {};
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public MaskWidget() : base() { }
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public MaskWidget(MaskWidget other)
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: base(other)
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{
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OnMouseDown = other.OnMouseDown;
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}
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public override bool HandleMouseInput(MouseInput mi)
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{
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if (mi.Event != MouseInputEvent.Down && mi.Event != MouseInputEvent.Up)
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return false;
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if (mi.Event == MouseInputEvent.Down)
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OnMouseDown(mi);
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return true;
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}
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public override string GetCursor(int2 pos) { return null; }
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public override Widget Clone() { return new MaskWidget(this); }
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}
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} |