private void _drawItem(
DrawingHandleScreen handle, ref float vOffset, float hOffset, Item item,
SpriteFont font, StyleBox itemSelected)
{
var itemHeight = font.GetHeight(UIScale) + itemSelected.MinimumSize.Y;
var selected = item.Index == _selectedIndex;
if (selected)
{
itemSelected.Draw(handle, UIBox2.FromDimensions(hOffset, vOffset, PixelWidth - hOffset, itemHeight));
}
if (!string.IsNullOrWhiteSpace(item.Text))
{
var offset = itemSelected.GetContentOffset(Vector2.Zero);
var baseLine = offset + new Vector2(hOffset, vOffset + font.GetAscent(UIScale));
foreach (var chr in item.Text)
{
baseLine += new Vector2(font.DrawChar(handle, chr, baseLine, UIScale, Color.White), 0);
}
}
vOffset += itemHeight;
hOffset += 5;
foreach (var child in item.Children)
{
_drawItem(handle, ref vOffset, hOffset, child, font, itemSelected);
}
}
public void Draw(
DrawingHandleScreen handle,
SpriteFont font,
UIBox2 drawBox,
float verticalOffset,
// A stack for format tags.
// This stack contains the format tag to RETURN TO when popped off.
// So when a new color tag gets hit this stack gets the previous color pushed on.
Stack <FormattedMessage.Tag> formatStack, float uiScale)
{
// The tag currently doing color.
var currentColorTag = TagBaseColor;
var globalBreakCounter = 0;
var lineBreakIndex = 0;
var baseLine = drawBox.TopLeft + new Vector2(0, font.GetAscent(uiScale) + verticalOffset);
formatStack.Clear();
foreach (var tag in Message.Tags)
{
switch (tag)
{
case FormattedMessage.TagColor tagColor:
formatStack.Push(currentColorTag);
currentColorTag = tagColor;
break;
case FormattedMessage.TagPop _:
var popped = formatStack.Pop();
switch (popped)
{
case FormattedMessage.TagColor tagColor:
currentColorTag = tagColor;
break;
default:
throw new InvalidOperationException();
}
break;
case FormattedMessage.TagText tagText:
{
var text = tagText.Text;
for (var i = 0; i < text.Length; i++, globalBreakCounter++)
{
var chr = text[i];
if (lineBreakIndex < LineBreaks.Count &&
LineBreaks[lineBreakIndex] == globalBreakCounter)
{
baseLine = new Vector2(drawBox.Left, baseLine.Y + font.GetLineHeight(uiScale));
lineBreakIndex += 1;
}
var advance = font.DrawChar(handle, chr, baseLine, uiScale, currentColorTag.Color);
baseLine += new Vector2(advance, 0);
}
break;
}
}
}
}