/// <summary>
/// Generates and adds an item with the specified text into the drop-down.
/// </summary>
/// <param name="text">The text of the item.</param>
public void AddItem(string text)
{
XNADropDownItem item = new XNADropDownItem();
item.Text = text;
Items.Add(item);
}
/// <summary>
/// Generates and adds an item with the specified text
/// and text color into the drop-down control.
/// </summary>
/// <param name="text">The text of the item.</param>
/// <param name="color">The color of the item's text.</param>
public void AddItem(string text, Color color)
{
XNADropDownItem item = new XNADropDownItem();
item.Text = text;
item.TextColor = color;
Items.Add(item);
}
/// <summary>
/// Generates and adds an item with the specified text and texture
/// into the drop-down.
/// </summary>
/// <param name="text">The text of the item.</param>
/// <param name="texture">The item's texture.</param>
public void AddItem(string text, Texture2D texture)
{
XNADropDownItem item = new XNADropDownItem();
item.Text = text;
item.Texture = texture;
Items.Add(item);
}
/// <summary>
/// Draws a single drop-down item.
/// This can be overridden in derived classes to customize the drawing code.
/// </summary>
/// <param name="index">The index of the item to be drawn.</param>
/// <param name="y">The Y coordinate of the item's top border.</param>
protected virtual void DrawItem(int index, int y)
{
XNADropDownItem item = Items[index];
if (hoveredIndex == index)
{
FillRectangle(new Rectangle(1, y, Width - 2, ItemHeight), FocusColor);
}
else
{
FillRectangle(new Rectangle(1, y, Width - 2, ItemHeight), BackColor);
}
int textX = 2;
if (item.Texture != null)
{
DrawTexture(item.Texture, new Rectangle(1, y + 1, item.Texture.Width, item.Texture.Height), Color.White);
textX += item.Texture.Width + 1;
}
Color textColor;
if (item.Selectable)
{
textColor = GetItemTextColor(item);
}
else
{
textColor = DisabledItemColor;
}
if (item.Text != null)
{
DrawStringWithShadow(item.Text, FontIndex, new Vector2(textX, y + 1), textColor);
}
}
/// <summary>
/// Draws the drop-down.
/// </summary>
public override void Draw(GameTime gameTime)
{
Rectangle dropDownRect;
if (DropDownState == DropDownState.CLOSED)
{
dropDownRect = new Rectangle(0, 0, Width, Height);
}
else if (DropDownState == DropDownState.OPENED_DOWN)
{
dropDownRect = new Rectangle(0, 0, Width, DropDownTexture.Height);
}
else
{
dropDownRect = new Rectangle(0, Height - DropDownTexture.Height, Width, DropDownTexture.Height);
}
FillRectangle(new Rectangle(dropDownRect.X + 1, dropDownRect.Y + 1,
dropDownRect.Width - 2, dropDownRect.Height - 2), BackColor);
DrawRectangle(dropDownRect, BorderColor);
if (SelectedIndex > -1 && SelectedIndex < Items.Count)
{
XNADropDownItem item = Items[SelectedIndex];
int textX = 3;
if (item.Texture != null)
{
DrawTexture(item.Texture,
new Rectangle(1, dropDownRect.Y + 2,
item.Texture.Width, item.Texture.Height), Color.White);
textX += item.Texture.Width + 1;
}
if (item.Text != null)
{
DrawStringWithShadow(item.Text, FontIndex,
new Vector2(textX, dropDownRect.Y + 2), GetItemTextColor(item));
}
}
if (AllowDropDown)
{
Rectangle ddRectangle = new Rectangle(Width - DropDownTexture.Width,
dropDownRect.Y, DropDownTexture.Width, DropDownTexture.Height);
if (DropDownState != DropDownState.CLOSED)
{
DrawTexture(DropDownOpenTexture,
ddRectangle, RemapColor);
Rectangle listRectangle;
if (DropDownState == DropDownState.OPENED_DOWN)
{
listRectangle = new Rectangle(0, DropDownTexture.Height, Width, Height + 1 - DropDownTexture.Height);
}
else
{
listRectangle = new Rectangle(0, 0, Width, Height - DropDownTexture.Height);
}
DrawRectangle(listRectangle, BorderColor);
for (int i = 0; i < Items.Count; i++)
{
int y = listRectangle.Y + 1 + i * ItemHeight;
DrawItem(i, y);
}
}
else
{
DrawTexture(DropDownTexture, ddRectangle, RemapColor);
}
}
base.Draw(gameTime);
}
/// <summary> /// Gets the text color of a drop-down item. /// </summary> /// <param name="item">The item.</param> protected Color GetItemTextColor(XNADropDownItem item) => item.TextColor ?? TextColor;
/// <summary>
/// Adds an item into the drop-down.
/// </summary>
/// <param name="item">The item.</param>
public void AddItem(XNADropDownItem item)
{
Items.Add(item);
}