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remove inefficient approach to checking if content stream path has been added #99

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This commit is contained in:
Eliot Jones
2019-12-10 13:20:57 +00:00
parent d0443c6567
commit c89928d976
1 changed files with 12 additions and 28 deletions
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40
src/UglyToad.PdfPig/Graphics/ContentStreamProcessor.cs
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@@ -50,6 +50,7 @@
private Stack<CurrentGraphicsState> graphicsStack = new Stack<CurrentGraphicsState>();
private IFont activeExtendedGraphicsStateFont;
private InlineImageBuilder inlineImageBuilder;
private bool currentPathAdded;
/// <summary>
/// A counter to track individual calls to <see cref="ShowText"/> operations used to determine if letters are likely to be
@@ -215,20 +216,22 @@
? currentState.CurrentNonStrokingColor
: currentState.CurrentStrokingColor;
ShowGlyph(font, transformedGlyphBounds,
var letter = new Letter(unicode, transformedGlyphBounds,
transformedPdfBounds.BottomLeft,
transformedPdfBounds.BottomRight,
transformedPdfBounds.Width,
unicode,
fontSize,
font.Name.Data,
color,
pointSize,
textSequence);
letters.Add(letter);
decimal tx, ty;
if (font.IsVertical)
{
var verticalFont = (IVerticalWritingSupported) font;
var verticalFont = (IVerticalWritingSupported)font;
var displacement = verticalFont.GetDisplacementVector(code);
tx = 0;
ty = (displacement.Y * fontSize) + characterSpacing + wordSpacing;
@@ -352,7 +355,7 @@
{
formMatrix = TransformationMatrix.FromArray(formMatrixToken.Data.OfType<NumericToken>().Select(x => x.Data).ToArray());
}
// 2. Update current transformation matrix.
var resultingTransformationMatrix = startState.CurrentTransformationMatrix.Multiply(formMatrix);
@@ -378,12 +381,13 @@
public void BeginSubpath()
{
if (CurrentPath != null && CurrentPath.Commands.Count > 0 && !paths.Contains(CurrentPath))
if (CurrentPath != null && CurrentPath.Commands.Count > 0 && !currentPathAdded)
{
paths.Add(CurrentPath);
}
CurrentPath = new PdfPath();
currentPathAdded = false;
}
public void StrokePath(bool close)
@@ -395,6 +399,7 @@
else
{
paths.Add(CurrentPath);
currentPathAdded = true;
}
}
@@ -407,6 +412,7 @@
else
{
paths.Add(CurrentPath);
currentPathAdded = true;
}
}
@@ -415,6 +421,7 @@
CurrentPath.ClosePath();
paths.Add(CurrentPath);
CurrentPath = null;
currentPathAdded = false;
}
public void SetNamedGraphicsState(NameToken stateName)
@@ -501,28 +508,5 @@
TextMatrices.TextMatrix = newMatrix;
}
private void ShowGlyph(IFont font, PdfRectangle glyphRectangle,
PdfPoint startBaseLine,
PdfPoint endBaseLine,
decimal width,
string unicode,
decimal fontSize,
IColor color,
decimal pointSize,
int textSequence)
{
var letter = new Letter(unicode, glyphRectangle,
startBaseLine,
endBaseLine,
width,
fontSize,
font.Name.Data,
color,
pointSize,
textSequence);
letters.Add(letter);
}
}
}