145 lines
3.9 KiB
C#
145 lines
3.9 KiB
C#
using Microsoft.Xna.Framework;
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using Microsoft.Xna.Framework.Graphics;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace Barotrauma
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{
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public class GUIDropDown : GUIComponent
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{
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public delegate bool OnSelectedHandler(GUIComponent selected);
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public OnSelectedHandler OnSelected;
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private GUIButton button;
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private GUIListBox listBox;
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public bool Dropped { get; set; }
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public object SelectedItemData
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{
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get
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{
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if (listBox.Selected == null) return null;
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return listBox.Selected.UserData;
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}
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}
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public GUIDropDown(Rectangle rect, string text, GUIStyle style, GUIComponent parent = null)
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: base(style)
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{
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this.rect = rect;
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if (parent != null) parent.AddChild(this);
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button = new GUIButton(Rectangle.Empty, text, Color.White, Alignment.TopLeft, Alignment.TopLeft, null, this);
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button.TextColor = Color.White;
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button.Color = Color.Black * 0.8f;
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button.HoverColor = Color.DarkGray * 0.8f;
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button.OutlineColor = Color.LightGray * 0.8f;
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button.OnClicked = OnClicked;
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listBox = new GUIListBox(new Rectangle(this.rect.X, this.rect.Bottom, this.rect.Width, 200), style, null);
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listBox.OnSelected = SelectItem;
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//listBox.ScrollBarEnabled = false;
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}
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public void AddItem(string text, object userData = null)
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{
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GUITextBlock textBlock = new GUITextBlock(new Rectangle(0,0,0,20), text, GUI.Style, listBox);
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textBlock.UserData = userData;
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//int totalHeight = 0;
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//foreach (GUIComponent child in listBox.children)
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//{
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// totalHeight += child.Rect.Height;
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//}
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//listBox.Rect = new Rectangle(listBox.Rect.X,listBox.Rect.Y,listBox.Rect.Width,totalHeight);
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}
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private bool SelectItem(GUIComponent component, object obj)
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{
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GUITextBlock textBlock = component as GUITextBlock;
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if (textBlock==null) return false;
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button.Text = textBlock.Text;
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Dropped = false;
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if (OnSelected != null) OnSelected(component);
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return true;
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}
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public void SelectItem(object userData)
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{
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//GUIComponent child = listBox.children.FirstOrDefault(c => c.UserData == userData);
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//if (child == null) return;
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listBox.Select(userData);
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//SelectItem(child, userData);
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}
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private bool wasOpened;
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private bool OnClicked(GUIComponent component, object obj)
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{
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if (wasOpened) return false;
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wasOpened = true;
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Dropped = !Dropped;
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if (Dropped && parent.children[parent.children.Count-1]!=this)
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{
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parent.children.Remove(this);
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parent.children.Add(this);
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}
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return true;
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}
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public override void Update(float deltaTime)
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{
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if (!Visible) return;
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wasOpened = false;
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base.Update(deltaTime);
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if (Dropped && PlayerInput.LeftButtonClicked())
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{
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Rectangle listBoxRect = listBox.Rect;
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listBoxRect.Width += 20;
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if (!listBoxRect.Contains(PlayerInput.MousePosition))
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{
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Dropped = false;
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}
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}
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button.Update(deltaTime);
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if (Dropped) listBox.Update(deltaTime);
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}
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public override void Draw(SpriteBatch spriteBatch)
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{
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if (!Visible) return;
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base.Draw(spriteBatch);
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button.Draw(spriteBatch);
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if (!Dropped) return;
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listBox.Draw(spriteBatch);
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}
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}
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}
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