/// <summary>Select an item in the list matching the given value.</summary>
/// <param name="value">The value to search.</param>
/// <returns>Returns whether an item was selected.</returns>
public bool TrySelect(TItem value)
{
var entry = this.Items.FirstOrDefault(p =>
(p.Value == null && value == null) ||
p.Value?.Equals(value) == true
);
if (entry == null)
{
return(false);
}
this.Selected = entry;
return(true);
}
/// <summary>Select an item in the list if it's under the cursor.</summary>
/// <param name="x">The X-position of the item in the UI.</param>
/// <param name="y">The Y-position of the item in the UI.</param>
/// <param name="selected">The selected item, if found.</param>
/// <returns>Returns whether an item was selected.</returns>
public bool TrySelect(int x, int y, out TItem selected)
{
for (int i = 0; i < this.ItemComponents.Count; i++)
{
var component = this.ItemComponents[i];
if (component.containsPoint(x, y))
{
this.Selected = this.Items[i];
selected = this.SelectedItem;
return(true);
}
}
selected = default;
return(false);
}
/// <summary>
/// Trigger of the translate.
/// </summary>
private void TriggerActive()
{
DropListItem selectedInputType = ((ComboBoxItem)comBoxInputType.SelectedItem).Tag as DropListItem;
DropListItem selectTargetType = ((ComboBoxItem)comBoxOutPut.SelectedItem).Tag as DropListItem;
if (null != selectedInputType && null != selectTargetType && !string.IsNullOrEmpty(txtBoxInput.Text.Trim()))
{
string[] args =
{
txtBoxInput.Text,
selectedInputType.Code,
selectTargetType.Code
};
back.RunWorkerAsync(args);
}
}
public TextNDropTestDialog()
: base("TextField and DropList Test", 200, 200, 320, 200)
{
girdLayout = new GirdLayout(4, 1);
girdLayout.Right = 16;
girdLayout.Left = 16;
girdLayout.Top = 8;
girdLayout.Bottom = 8;
girdLayout.Spacer = 4;
girdLayout.SetHorizontalAlignment(1, 0, EHAlignment.HLeft);
girdLayout.SetHorizontalAlignment(2, 0, EHAlignment.HCenter);
girdLayout.SetHorizontalAlignment(3, 0, EHAlignment.HRight);
closeButton = new Button("Close");
//textField=new TextField(160);
dropList = new DropList();
option1 = new DropListItem("Option one");
option2 = new DropListItem("Option Two");
option3 = new DropListItem("Option Three");
dropList.Add(option1);
dropList.Add(option2);
dropList.Add(option3);
textLabel = new Label("Text input here:");
optionLabel = new Label("Drop List test:");
Layout = girdLayout;
Add(textLabel);
//Add(textField);
Add(optionLabel);
Add(dropList);
Add(closeButton);
Pack();
closeButton.MouseReleasedEvent += new MouseReleasedHandler(closeButton_MouseReleasedEvent);
}
private Collection <DropListItem> InitDropList()
{
list = new Collection <DropListItem>();
XmlDocument doc = new XmlDocument();
doc.Load(Environment.CurrentDirectory + @"\Configuration\BaseConfiguration.xml");
XmlNode xmlRoot = doc.SelectSingleNode("dropitems");
XmlNodeList xnl = xmlRoot.ChildNodes;
DropListItem item;
foreach (var i in xnl)
{
item = new DropListItem();
XmlElement xe = (XmlElement)i;
item.DisplayName = xe.GetAttribute("displayname");
item.Code = xe.GetAttribute("code");
list.Add(item);
}
return(list);
}
/*********
** Public methods
*********/
/// <summary>Construct an instance.</summary>
/// <param name="selectedItem">The selected item.</param>
/// <param name="items">The items in the list.</param>
/// <param name="getLabel">Get the display label for an item.</param>
/// <param name="x">The X-position from which to render the list.</param>
/// <param name="y">The Y-position from which to render the list.</param>
/// <param name="font">The font with which to render text.</param>
public DropdownList(TItem selectedItem, TItem[] items, Func <TItem, string> getLabel, int x, int y, SpriteFont font)
: base(new Rectangle(), nameof(DropdownList <TItem>))
{
// save values
this.Items = items
.Select((item, index) => new DropListItem(index, getLabel(item), item))
.ToArray();
this.Font = font;
this.MaxLabelHeight = (int)font.MeasureString("abcdefghijklmnopqrstuvwxyz").Y;
this.GetLabel = getLabel;
// set initial selection
int selectedIndex = Array.IndexOf(items, selectedItem);
this.Selected = selectedIndex >= 0
? this.Items[selectedIndex]
: this.Items.First();
// initialize UI
this.bounds.X = x;
this.bounds.Y = y;
this.ReinitializeComponents();
}
/// <summary>Render the UI.</summary>
/// <param name="sprites">The sprites to render.</param>
/// <param name="opacity">The opacity at which to draw.</param>
public void Draw(SpriteBatch sprites, float opacity = 1)
{
// draw dropdown items
foreach (ClickableComponent component in this.ItemComponents)
{
// draw background
if (component.containsPoint(Game1.getMouseX(), Game1.getMouseY()))
{
sprites.Draw(Sprites.DropDown.Sheet, component.bounds, Sprites.DropDown.HoverBackground, Color.White * opacity);
}
else if (component.name.Equals(this.SelectedIndex.ToString()))
{
sprites.Draw(Sprites.DropDown.Sheet, component.bounds, Sprites.DropDown.ActiveBackground, Color.White * opacity);
}
else
{
sprites.Draw(Sprites.DropDown.Sheet, component.bounds, Sprites.DropDown.InactiveBackground, Color.White * opacity);
}
// draw text
DropListItem <TItem> item = this.Items.First(p => p.Index == int.Parse(component.name));
Vector2 position = this.ToRight
? new Vector2(component.bounds.X + DROPDOWN_PADDING, component.bounds.Y + Game1.tileSize / 16)
: new Vector2(component.bounds.X + component.bounds.Width - this.Font.MeasureString(item.Name).X - DROPDOWN_PADDING, component.bounds.Y + Game1.tileSize / 16);
sprites.DrawString(this.Font, item.Name, position, Color.Black * opacity);
}
// draw up/down arrows
if (this.FirstVisibleIndex > 0)
{
sprites.Draw(Sprites.Icons.Sheet, new Vector2(this.bounds.X - Sprites.Icons.UpArrow.Width, this.bounds.Y), Sprites.Icons.UpArrow, Color.White * opacity);
}
if (this.FirstVisibleIndex < this.MaxFirstVisibleIndex)
{
sprites.Draw(Sprites.Icons.Sheet, new Vector2(this.bounds.X - Sprites.Icons.UpArrow.Width, this.bounds.Y + this.bounds.Height - Sprites.Icons.DownArrow.Height), Sprites.Icons.DownArrow, Color.White * opacity);
}
}
/// <summary>Render the UI.</summary>
/// <param name="sprites">The sprites to render.</param>
/// <param name="opacity">The opacity at which to draw.</param>
public void Draw(SpriteBatch sprites, float opacity = 1)
{
// draw dropdown items
for (int i = 0; i < this.ItemComponents.Count; i++)
{
var component = this.ItemComponents[i];
// draw background
if (component.containsPoint(Game1.getMouseX(), Game1.getMouseY()))
{
sprites.Draw(CommonSprites.DropDown.Sheet, component.bounds, CommonSprites.DropDown.HoverBackground, Color.White * opacity);
}
else if (i == this.Selected.Index)
{
sprites.Draw(CommonSprites.DropDown.Sheet, component.bounds, CommonSprites.DropDown.ActiveBackground, Color.White * opacity);
}
else
{
sprites.Draw(CommonSprites.DropDown.Sheet, component.bounds, CommonSprites.DropDown.InactiveBackground, Color.White * opacity);
}
// draw text
DropListItem item = this.Items.First(p => p.Index == int.Parse(component.name));
Vector2 position = new Vector2(component.bounds.X + DropdownList <TItem> .DropdownPadding, component.bounds.Y + Game1.tileSize / 16);
sprites.DrawString(this.Font, item.Name, position, Color.Black * opacity);
}
// draw up/down arrows
if (this.FirstVisibleIndex > 0)
{
sprites.Draw(CommonSprites.Icons.Sheet, new Vector2(this.bounds.X - CommonSprites.Icons.UpArrow.Width, this.bounds.Y), CommonSprites.Icons.UpArrow, Color.White * opacity);
}
if (this.FirstVisibleIndex < this.MaxFirstVisibleIndex)
{
sprites.Draw(CommonSprites.Icons.Sheet, new Vector2(this.bounds.X - CommonSprites.Icons.UpArrow.Width, this.bounds.Y + this.bounds.Height - CommonSprites.Icons.DownArrow.Height), CommonSprites.Icons.DownArrow, Color.White * opacity);
}
}
public abstract void PaintDropListItem(DropListItem component);
public abstract Size GetDropListItemPreferedSize(DropListItem component);