protected virtual void DrawForeground(IGuiContext context, IGuiRenderer renderer, float deltaSeconds, TextInfo textInfo)
{
if (!string.IsNullOrWhiteSpace(textInfo.Text))
{
renderer.DrawText(textInfo.Font, textInfo.Text, textInfo.Position + TextOffset, textInfo.Color, textInfo.ClippingRectangle);
}
}
public override void Draw(IGuiContext context, IGuiRenderer renderer, float deltaSeconds)
{
base.Draw(context, renderer, deltaSeconds);
if (IsOpen)
{
var dropDownRectangle = GetListAreaRectangle(context);
if (DropDownRegion != null)
{
renderer.DrawRegion(DropDownRegion, dropDownRectangle, DropDownColor);
}
else
{
renderer.FillRectangle(dropDownRectangle, DropDownColor);
renderer.DrawRectangle(dropDownRectangle, BorderColor);
}
DrawItemList(context, renderer);
}
var selectedTextInfo = GetItemTextInfo(context, ContentRectangle, SelectedItem);
if (!string.IsNullOrWhiteSpace(selectedTextInfo.Text))
{
renderer.DrawText(selectedTextInfo.Font, selectedTextInfo.Text, selectedTextInfo.Position + TextOffset, selectedTextInfo.Color, selectedTextInfo.ClippingRectangle);
}
}
//private bool _startSelectionBox = false;
//private Stack<int> _selectionIndexes = new Stack<int>();
public override void Draw(IGuiContext context, IGuiRenderer renderer, float deltaSeconds)
{
base.Draw(context, renderer, deltaSeconds);
var text = PasswordCharacter.HasValue ? new string(PasswordCharacter.Value, Text.Length) : Text;
var textInfo = GetTextInfo(context, text, ContentRectangle, HorizontalTextAlignment, VerticalTextAlignment);
if (!string.IsNullOrWhiteSpace(textInfo.Text))
{
renderer.DrawText(textInfo.Font, textInfo.Text, textInfo.Position + TextOffset, textInfo.Color,
textInfo.ClippingRectangle);
}
if (IsFocused)
{
var caretRectangle = GetCaretRectangle(textInfo, SelectionStart);
if (_isCaretVisible)
{
renderer.DrawRectangle(caretRectangle, TextColor);
}
_nextCaretBlink -= deltaSeconds;
if (_nextCaretBlink <= 0)
{
_isCaretVisible = !_isCaretVisible;
_nextCaretBlink = _caretBlinkRate;
}
//if (_selectionIndexes.Count > 1)
//{
// var start = 0;
// var end = 0;
// var point = Point2.Zero;
// if (_selectionIndexes.Last() > _selectionIndexes.Peek())
// {
// start = _selectionIndexes.Peek();
// end = _selectionIndexes.Last();
// point = caretRectangle.Position;
// }
// else
// {
// start = _selectionIndexes.Last();
// end = _selectionIndexes.Peek();
// point = GetCaretRectangle(textInfo, start).Position;
// }
// var selectionRectangle = textInfo.Font.GetStringRectangle(textInfo.Text.Substring(start, end - start), point);
// renderer.FillRectangle((Rectangle)selectionRectangle, Color.Black * 0.25f);
//}
}
}
public override void Draw(IGuiContext context, IGuiRenderer renderer, float deltaSeconds)
{
base.Draw(context, renderer, deltaSeconds);
var text = Math.Round(Value, DecimalPlaces).ToString() + Suffix;
var textInfo = GetTextInfo(context, text, ContentRectangle, HorizontalTextAlignment, VerticalTextAlignment);
if (!string.IsNullOrWhiteSpace(textInfo.Text))
{
renderer.DrawText(textInfo.Font, textInfo.Text, textInfo.Position + TextOffset, textInfo.Color, textInfo.ClippingRectangle);
}
}
/// <summary>
/// Draws colored text line
/// </summary>
/// <param name="context">gui context</param>
/// <param name="renderer">gui renderer</param>
/// <param name="line">scroll line to draw</param>
/// <param name="lineIndex">current line index</param>
private void DrawColoredText(IGuiContext context, IGuiRenderer renderer, string line, int lineIndex)
{
string remainingLine = line;
var currentDrawPos = new Vector2(this.ContentRectangle.X, this.ContentRectangle.Y + (lineIndex * 16.0f));
Color currentColor = this.TextColor;
while (remainingLine.Any())
{
int colorModifierPos = remainingLine.IndexOf(ColorModifierChar);
string linePart = colorModifierPos == -1
? remainingLine
: remainingLine.Substring(0, colorModifierPos);
if (linePart.Any())
{
renderer.DrawText(
context.DefaultFont,
linePart,
currentDrawPos,
currentColor);
currentDrawPos.X += (linePart.Length - 1) * 16.0f;
}
if (colorModifierPos != -1)
{
Debug.Assert(
colorModifierPos + 1 < remainingLine.Length,
"after the ~ the color character must follow");
char colorChar = char.ToLowerInvariant(remainingLine[colorModifierPos + 1]);
int colorIndex = colorChar >= '0' && colorChar <= '9' ? colorChar - '0' : colorChar - 'a' + 10;
Debug.Assert(
colorIndex < ColorByIndex.Count,
"invalid color modifier character");
if (colorIndex < ColorByIndex.Count)
{
currentColor = ColorByIndex[colorIndex];
}
}
int charsToSkip = linePart.Length + (colorModifierPos != -1 ? 2 : 0);
remainingLine = remainingLine.Substring(charsToSkip);
}
}
protected void DrawItemList(IGuiContext context, IGuiRenderer renderer)
{
var listRectangle = GetListAreaRectangle(context);
for (var i = FirstIndex; i < Items.Count; i++)
{
var item = Items[i];
var itemRectangle = GetItemRectangle(context, i - FirstIndex, listRectangle);
var itemTextInfo = GetItemTextInfo(context, itemRectangle, item);
var textColor = i == SelectedIndex ? SelectedTextColor : itemTextInfo.Color;
if (SelectedIndex == i)
{
renderer.FillRectangle(itemRectangle, SelectedItemColor, listRectangle);
}
renderer.DrawText(itemTextInfo.Font, itemTextInfo.Text, itemTextInfo.Position + TextOffset, textColor, itemTextInfo.ClippingRectangle);
}
}
/// <summary>
/// Draws all text lines
/// </summary>
/// <param name="context">gui context</param>
/// <param name="renderer">gui renderer</param>
/// <param name="scrollLines">all scroll lines to draw</param>
private void DrawTextLines(IGuiContext context, IGuiRenderer renderer, IEnumerable <string> scrollLines)
{
int lineIndex = 0;
foreach (string line in scrollLines)
{
Color currentColor = this.TextColor;
if (!line.Contains(ColorModifierChar))
{
renderer.DrawText(
context.DefaultFont,
line,
new Vector2(this.ContentRectangle.X, this.ContentRectangle.Y + (lineIndex * 16.0f)),
currentColor);
}
else
{
this.DrawColoredText(context, renderer, line, lineIndex);
}
lineIndex++;
}
}
