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Add horizontal alignment tags for rich text box

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This commit is contained in:
Wojciech Figat
2022-08-05 15:29:37 +02:00
parent 9caf80bdc9
commit f781fd8ab6
4 changed files with 107 additions and 12 deletions
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40
Source/Engine/UI/GUI/Common/RichTextBox.Parsing.cs
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@@ -26,12 +26,12 @@ namespace FlaxEngine.GUI
/// Current caret location for the new text blocks origin.
/// </summary>
public Float2 Caret;
/// <summary>
/// Index of the current line start character.
/// </summary>
public int LineStartCharacterIndex;
/// <summary>
/// Index of the current line start text block.
/// </summary>
@@ -50,12 +50,12 @@ namespace FlaxEngine.GUI
{
// Post-processing
Control.PostProcessBlock?.Invoke(ref this, ref textBlock);
// Add to the text blocks
Control._textBlocks.Add(textBlock);
}
}
/// <summary>
/// The delegate for text blocks post-processing.
/// </summary>
@@ -68,7 +68,7 @@ namespace FlaxEngine.GUI
/// </summary>
[HideInEditor]
public PostProcessBlockDelegate PostProcessBlock;
/// <summary>
/// The delegate for HTML tag processing.
/// </summary>
@@ -91,6 +91,8 @@ namespace FlaxEngine.GUI
{ "size", ProcessSize },
{ "img", ProcessImage },
{ "valign", ProcessVAlign },
{ "align", ProcessAlign },
{ "center", ProcessCenter },
};
private HtmlParser _parser = new HtmlParser();
@@ -104,7 +106,7 @@ namespace FlaxEngine.GUI
ParseTextBlocks(_text, _textBlocks);
return;
}
// Setup parsing
_parser.Reset(_text);
_styleStack.Clear();
@@ -206,7 +208,7 @@ namespace FlaxEngine.GUI
context.AddTextBlock(ref textBlock);
}
// Update the caret location
ref var lastLine = ref lines[lines.Length - 1];
if (lines.Length == 1)
@@ -226,7 +228,7 @@ namespace FlaxEngine.GUI
var lineOrigin = textBlocks[context.LineStartTextBlockIndex].Bounds.Location;
var lineSize = Float2.Zero;
var lineAscender = 0.0f;
for(int i = context.LineStartTextBlockIndex; i < _textBlocks.Count; i++)
for (int i = context.LineStartTextBlockIndex; i < _textBlocks.Count; i++)
{
ref TextBlock textBlock = ref textBlocks[i];
var textBlockSize = textBlock.Bounds.BottomRight - lineOrigin;
@@ -242,10 +244,12 @@ namespace FlaxEngine.GUI
}
// Organize text blocks within line
for(int i = context.LineStartTextBlockIndex; i < _textBlocks.Count; i++)
var horizontalAlignments = TextBlockStyle.Alignments.Baseline;
for (int i = context.LineStartTextBlockIndex; i < _textBlocks.Count; i++)
{
ref TextBlock textBlock = ref textBlocks[i];
var vOffset = lineSize.Y - textBlock.Bounds.Height;
horizontalAlignments |= textBlock.Style.Alignment & TextBlockStyle.Alignments.HorizontalMask;
switch (textBlock.Style.Alignment & TextBlockStyle.Alignments.VerticalMask)
{
case TextBlockStyle.Alignments.Baseline:
@@ -279,6 +283,24 @@ namespace FlaxEngine.GUI
}
}
}
var hOffset = Width - lineSize.X;
if ((horizontalAlignments & TextBlockStyle.Alignments.Center) == TextBlockStyle.Alignments.Center)
{
hOffset *= 0.5f;
for (int i = context.LineStartTextBlockIndex; i < _textBlocks.Count; i++)
{
ref TextBlock textBlock = ref textBlocks[i];
textBlock.Bounds.Location.X += hOffset;
}
}
else if ((horizontalAlignments & TextBlockStyle.Alignments.Right) == TextBlockStyle.Alignments.Right)
{
for (int i = context.LineStartTextBlockIndex; i < _textBlocks.Count; i++)
{
ref TextBlock textBlock = ref textBlocks[i];
textBlock.Bounds.Location.X += hOffset;
}
}
// Move to the next line
context.LineStartCharacterIndex = lineEnd + 1;