public void GetParagraphIndents(RPLFormat.Directions direction, float dpiX, out float leftIndent, out float rightIndent, out float hangingIndent)
{
leftIndent = (float)TextBox.ConvertToPixels(this.m_paragraphProps.LeftIndent, dpiX);
rightIndent = (float)TextBox.ConvertToPixels(this.m_paragraphProps.RightIndent, dpiX);
hangingIndent = (float)TextBox.ConvertToPixels(this.m_paragraphProps.HangingIndent, dpiX);
if (hangingIndent < 0.0)
{
if (direction == RPLFormat.Directions.LTR)
{
leftIndent -= hangingIndent;
}
else
{
rightIndent -= hangingIndent;
}
}
if (this.m_paragraphProps.ListLevel > 0)
{
float num = (float)(this.m_paragraphProps.ListLevel * TextBox.ConvertToPixels(10.583333f, dpiX));
if (direction == RPLFormat.Directions.LTR)
{
leftIndent += num;
}
else
{
rightIndent += num;
}
}
}
public static void Render(TextBox textBox, List <Paragraph> paragraphs, Win32DCSafeHandle hdc, FontCache fontCache, PointF offset, RectangleF layoutRectangle, float dpiX, bool unitsInMM)
{
if (paragraphs != null && paragraphs.Count != 0)
{
Rectangle layoutRectangle2;
Point point;
if (unitsInMM)
{
layoutRectangle2 = new Rectangle(TextBox.ConvertToPixels(layoutRectangle.X, dpiX), TextBox.ConvertToPixels(layoutRectangle.Y, dpiX), TextBox.ConvertToPixels(layoutRectangle.Width, dpiX), TextBox.ConvertToPixels(layoutRectangle.Height, dpiX));
point = new Point(TextBox.ConvertToPixels(offset.X, dpiX), TextBox.ConvertToPixels(offset.Y, dpiX));
}
else
{
layoutRectangle2 = new Rectangle((int)layoutRectangle.X, (int)layoutRectangle.Y, (int)layoutRectangle.Width, (int)layoutRectangle.Height);
point = new Point((int)offset.X, (int)offset.Y);
}
uint fMode = Win32.SetTextAlign(hdc, 24u);
int iBkMode = Win32.SetBkMode(hdc, 1);
Win32ObjectSafeHandle win32ObjectSafeHandle = Win32.SelectObject(hdc, Win32ObjectSafeHandle.Zero);
try
{
fontCache.WritingMode = textBox.TextBoxProps.WritingMode;
int y = point.Y;
for (int i = 0; i < paragraphs.Count; i++)
{
TextBox.RenderParagraph(textBox, paragraphs[i], hdc, fontCache, point.X, ref y, layoutRectangle2, dpiX);
}
}
finally
{
fMode = Win32.SetTextAlign(hdc, fMode);
iBkMode = Win32.SetBkMode(hdc, iBkMode);
if (!win32ObjectSafeHandle.IsInvalid)
{
Win32ObjectSafeHandle win32ObjectSafeHandle2 = Win32.SelectObject(hdc, win32ObjectSafeHandle);
win32ObjectSafeHandle2.SetHandleAsInvalid();
win32ObjectSafeHandle.SetHandleAsInvalid();
}
}
}
}
private Point GetParagraphAndRunCoordinates(Win32DCSafeHandle hdc, TextBoxContext location, bool moveCaretToNextLine, out int lineYOffset, out int lineHeight, out TextRun textRun, out int textRunCharacterIndex, out bool isFirstLine, out bool isLastLine)
{
int num = 0;
int textRunIndex = location.TextRunIndex;
textRunCharacterIndex = location.TextRunCharacterIndex;
lineYOffset = 0;
lineHeight = 0;
textRun = null;
isFirstLine = true;
isLastLine = true;
List <Paragraph> rTParagraphs = this.RTParagraphs;
if (rTParagraphs != null && location.ParagraphIndex < rTParagraphs.Count)
{
Paragraph paragraph = rTParagraphs[location.ParagraphIndex];
int num2 = paragraph.OffsetY + TextBox.ConvertToPixels(paragraph.ParagraphProps.SpaceBefore, this.Dpi);
int num3 = TextBox.ConvertToPixels(paragraph.ParagraphProps.LeftIndent, this.Dpi);
int num4 = TextBox.ConvertToPixels(paragraph.ParagraphProps.RightIndent, this.Dpi);
int num5 = TextBox.ConvertToPixels(paragraph.ParagraphProps.HangingIndent, this.Dpi);
bool flag = this.m_rttextbox.TextBoxProps.Direction == RPLFormat.Directions.LTR;
if (num5 < 0)
{
if (flag)
{
num3 -= num5;
}
else
{
num4 -= num5;
}
}
int listLevel = paragraph.ParagraphProps.ListLevel;
if (listLevel > 0)
{
int num6 = listLevel * TextBox.ConvertToPixels(10.583333f, this.Dpi);
if (flag)
{
num3 += num6;
}
else
{
num4 += num6;
}
}
for (int i = 0; i < paragraph.TextLines.Count; i++)
{
TextLine textLine = paragraph.TextLines[i];
int descent = textLine.GetDescent(hdc, this.FontCache);
lineHeight = textLine.GetHeight(hdc, this.FontCache);
lineYOffset = num2;
num2 += lineHeight;
RPLFormat.TextAlignments textAlignments = paragraph.ParagraphProps.Alignment;
if (textAlignments == RPLFormat.TextAlignments.General)
{
textAlignments = this.m_rttextbox.TextBoxProps.DefaultAlignment;
if (!flag)
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Left:
textAlignments = RPLFormat.TextAlignments.Right;
break;
case RPLFormat.TextAlignments.Right:
textAlignments = RPLFormat.TextAlignments.Left;
break;
}
}
}
switch (textAlignments)
{
case RPLFormat.TextAlignments.Center:
num = num3 + (this.WidthInPX - num3 - num4) / 2 - textLine.GetWidth(hdc, this.FontCache) / 2;
break;
case RPLFormat.TextAlignments.Right:
num = this.WidthInPX - textLine.GetWidth(hdc, this.FontCache) - num4;
break;
default:
num = num3;
break;
}
if (textLine.FirstLine && num5 != 0)
{
if (flag)
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Left:
num += num5;
break;
case RPLFormat.TextAlignments.Center:
num += num5 / 2;
break;
}
}
else
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Right:
num -= num5;
break;
case RPLFormat.TextAlignments.Center:
num -= num5 / 2;
break;
}
}
}
int count = textLine.VisualRuns.Count;
for (int j = 0; j < count; num += textRun.GetWidth(hdc, this.FontCache), j++)
{
textRun = textLine.VisualRuns[j];
if (textRun.TextRunProperties.IndexInParagraph == textRunIndex && textRunCharacterIndex >= textRun.CharacterIndexInOriginal)
{
bool flag2 = (moveCaretToNextLine || textRun.CharacterCount <= 0 || textRun.Text[textRun.CharacterCount - 1] != '\n') ? (textRunCharacterIndex <= textRun.CharacterIndexInOriginal + textRun.CharacterCount) : (textRunCharacterIndex < textRun.CharacterIndexInOriginal + textRun.CharacterCount);
if (!flag2 && (i + 1 != paragraph.TextLines.Count || j + 1 != count))
{
continue;
}
if (moveCaretToNextLine && textRunCharacterIndex == textRun.CharacterIndexInOriginal + textRun.CharacterCount && j + 1 == count && i + 1 < paragraph.TextLines.Count)
{
location = location.Clone();
if (paragraph.TextLines[i + 1].VisualRuns[0].TextRunProperties.IndexInParagraph != textRunIndex)
{
location.TextRunIndex++;
location.TextRunCharacterIndex = 0;
}
Point paragraphAndRunCoordinates = this.GetParagraphAndRunCoordinates(hdc, location, false, out lineYOffset, out lineHeight, out textRun, out textRunCharacterIndex, out isFirstLine, out isLastLine);
textRunCharacterIndex = Math.Max(textRunCharacterIndex - 1, 0);
return(paragraphAndRunCoordinates);
}
textRunCharacterIndex -= textRun.CharacterIndexInOriginal;
isFirstLine = textLine.FirstLine;
isLastLine = textLine.LastLine;
return(new Point(num, num2 - descent));
}
}
}
textRun = null;
return(Point.Empty);
}
return(Point.Empty);
}
private TextBoxContext GetParagraphAndRunIndex(Graphics g, Paragraph paragraph, int leftIndent, int rightIndent, int hangingIndent, int x, int y, bool isLTR, bool lastParagraph, out TextRun run, out int runX, out bool atEndOfLine)
{
Win32DCSafeHandle win32DCSafeHandle = null;
bool flag = false;
try
{
if (g == null)
{
flag = true;
g = Graphics.FromHwnd(IntPtr.Zero);
}
win32DCSafeHandle = new Win32DCSafeHandle(g.GetHdc(), false);
runX = x;
run = null;
atEndOfLine = false;
int num = 0;
while (num < paragraph.TextLines.Count)
{
TextLine textLine = paragraph.TextLines[num];
y -= textLine.GetHeight(win32DCSafeHandle, this.FontCache);
if (textLine.FirstLine)
{
y -= TextBox.ConvertToPixels(paragraph.ParagraphProps.SpaceBefore, this.Dpi);
}
else if (textLine.LastLine)
{
y -= TextBox.ConvertToPixels(paragraph.ParagraphProps.SpaceAfter, this.Dpi);
}
if (y >= 0 && num + 1 != paragraph.TextLines.Count)
{
num++;
continue;
}
int width = textLine.GetWidth(win32DCSafeHandle, this.FontCache);
if (x > this.WidthInPX)
{
atEndOfLine = (width > 0);
int num2 = default(int);
bool flag2 = default(bool);
run = this.GetLastNonLineBreakRun(textLine.LogicalRuns, out num2, out flag2);
TextBoxContext textBoxContext = new TextBoxContext();
textBoxContext.TextRunIndex = run.TextRunProperties.IndexInParagraph;
if (flag2 && run.CharacterCount > 0)
{
textBoxContext.TextRunCharacterIndex = run.CharacterIndexInOriginal + num2 + 1;
}
else
{
textBoxContext.TextRunCharacterIndex = run.CharacterIndexInOriginal;
}
run = null;
return(textBoxContext);
}
if (x < 0)
{
atEndOfLine = false;
int num3 = default(int);
run = this.GetFirstNonLineBreakRun(textLine.LogicalRuns, out num3);
TextBoxContext textBoxContext2 = new TextBoxContext();
textBoxContext2.TextRunIndex = run.TextRunProperties.IndexInParagraph;
textBoxContext2.TextRunCharacterIndex = run.CharacterIndexInOriginal + num3;
run = null;
return(textBoxContext2);
}
RPLFormat.TextAlignments textAlignments = paragraph.ParagraphProps.Alignment;
if (textAlignments == RPLFormat.TextAlignments.General)
{
textAlignments = this.m_rttextbox.TextBoxProps.DefaultAlignment;
if (!isLTR)
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Left:
textAlignments = RPLFormat.TextAlignments.Right;
break;
case RPLFormat.TextAlignments.Right:
textAlignments = RPLFormat.TextAlignments.Left;
break;
}
}
}
switch (textAlignments)
{
case RPLFormat.TextAlignments.Center:
runX = x - (leftIndent + (this.WidthInPX - leftIndent - rightIndent) / 2 - width / 2);
break;
case RPLFormat.TextAlignments.Right:
runX = x - (this.WidthInPX - width - rightIndent);
break;
default:
runX = x - leftIndent;
break;
}
if (textLine.FirstLine && hangingIndent != 0)
{
if (isLTR)
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Left:
runX -= hangingIndent;
break;
case RPLFormat.TextAlignments.Center:
runX -= hangingIndent / 2;
break;
}
}
else
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Right:
runX += hangingIndent;
break;
case RPLFormat.TextAlignments.Center:
runX += hangingIndent / 2;
break;
}
}
}
runX = Math.Max(0, runX);
return(this.GetParagraphAndRunIndex(win32DCSafeHandle, paragraph, textLine, x, width, lastParagraph, out run, ref runX, out atEndOfLine));
}
return(null);
}
finally
{
if (!win32DCSafeHandle.IsInvalid)
{
g.ReleaseHdc();
}
if (flag)
{
g.Dispose();
g = null;
}
}
}
private TextBoxContext GetParagraphAndRunIndex(Graphics g, int x, int y, out TextRun run, out int runX, out bool atEndOfLine)
{
List <Paragraph> rTParagraphs = this.RTParagraphs;
Paragraph paragraph = null;
int num = 0;
int num2 = 0;
int num3 = 0;
int i = 0;
bool flag = true;
run = null;
runX = 0;
atEndOfLine = false;
if (rTParagraphs != null && rTParagraphs.Count != 0)
{
if (y < 0)
{
y = 0;
}
for (; i < rTParagraphs.Count; i++)
{
paragraph = rTParagraphs[i];
if (y >= paragraph.OffsetY && y < paragraph.OffsetY + paragraph.Height)
{
goto IL_006f;
}
if (i + 1 == rTParagraphs.Count)
{
goto IL_006f;
}
continue;
IL_006f:
y -= paragraph.OffsetY;
num = TextBox.ConvertToPixels(paragraph.ParagraphProps.LeftIndent, this.Dpi);
num2 = TextBox.ConvertToPixels(paragraph.ParagraphProps.RightIndent, this.Dpi);
num3 = TextBox.ConvertToPixels(paragraph.ParagraphProps.HangingIndent, this.Dpi);
flag = (this.m_rttextbox.TextBoxProps.Direction == RPLFormat.Directions.LTR);
if (num3 < 0)
{
if (flag)
{
num -= num3;
}
else
{
num2 -= num3;
}
}
int listLevel = paragraph.ParagraphProps.ListLevel;
if (listLevel > 0)
{
int num4 = listLevel * TextBox.ConvertToPixels(10.583333f, this.Dpi);
if (flag)
{
num += num4;
}
else
{
num2 += num4;
}
}
break;
}
TextBoxContext paragraphAndRunIndex = this.GetParagraphAndRunIndex(g, paragraph, num, num2, num3, x, y, flag, i == rTParagraphs.Count - 1, out run, out runX, out atEndOfLine);
if (paragraphAndRunIndex != null)
{
paragraphAndRunIndex.ParagraphIndex = i;
}
return(paragraphAndRunIndex);
}
return(null);
}
public Rectangle GetTextBoundingBoxPx(Rectangle rect, RPLFormat.VerticalAlignments vAlign)
{
if (this.RTParagraphs == null)
{
return(new Rectangle(rect.Location, Size.Empty));
}
Rectangle rectangle = Rectangle.Empty;
Size size = default(Size);
int num = rect.Top;
Size size2 = rect.Size;
if (this.RTTextbox.VerticalText)
{
size2 = new Size(size2.Height, size2.Width);
}
foreach (Paragraph rTParagraph in this.RTParagraphs)
{
int num2 = 0;
if (rTParagraph.TextLines.Count == 1 && rTParagraph.ParagraphProps.HangingIndent > 0.0)
{
num2 += TextBox.ConvertToPixels(rTParagraph.ParagraphProps.HangingIndent, this.Dpi);
}
foreach (TextLine textLine in rTParagraph.TextLines)
{
size.Width = Math.Max(Math.Max(size.Width, textLine.GetWidth(Win32DCSafeHandle.Zero, this.FontCache)), 10);
size.Height += textLine.GetHeight(Win32DCSafeHandle.Zero, this.FontCache);
}
switch (rTParagraph.ParagraphProps.Alignment)
{
case RPLFormat.TextAlignments.General:
if (this.RTTextbox.TextBoxProps.Direction != RPLFormat.Directions.RTL)
{
goto case RPLFormat.TextAlignments.Left;
}
goto case RPLFormat.TextAlignments.Right;
case RPLFormat.TextAlignments.Left:
num2 += rect.Left;
break;
case RPLFormat.TextAlignments.Center:
num2 += rect.Left + (size2.Width - size.Width) / 2;
break;
case RPLFormat.TextAlignments.Right:
num2 += rect.Left + size2.Width - size.Width;
break;
default:
throw new ArgumentException("Unknown TextAlignment: " + rTParagraph.ParagraphProps.Alignment.ToString());
}
num2 = ((this.RTTextbox.TextBoxProps.Direction != 0) ? (num2 - TextBox.ConvertToPixels((float)(rTParagraph.ParagraphProps.RightIndent + 10.583333015441895 * (float)rTParagraph.ParagraphProps.ListLevel), this.Dpi)) : (num2 + TextBox.ConvertToPixels((float)(rTParagraph.ParagraphProps.LeftIndent + 10.583333015441895 * (float)rTParagraph.ParagraphProps.ListLevel), this.Dpi)));
Rectangle rectangle2 = new Rectangle(new Point(num2, num), size);
num += size.Height;
rectangle = ((!rectangle.IsEmpty) ? Rectangle.Union(rectangle, rectangle2) : rectangle2);
}
if (rectangle.Height < size2.Height)
{
switch (vAlign)
{
case RPLFormat.VerticalAlignments.Middle:
rectangle.Y += (size2.Height - rectangle.Height) / 2;
break;
case RPLFormat.VerticalAlignments.Bottom:
rectangle.Y = rect.Top + size2.Height - rectangle.Height;
break;
}
}
if (this.RTTextbox.VerticalText)
{
Point location = new Point(rect.Right - (rectangle.Top - rect.Top) - rectangle.Height, rectangle.Left);
Size size3 = new Size(rectangle.Height, rectangle.Width);
rectangle = new Rectangle(location, size3);
}
return(Rectangle.Intersect(rect, rectangle));
}
public void Render(Graphics g, RectangleF rectangle, PointF offset, IEnumerable <RTSelectionHighlight> highlights, bool unitsInMM)
{
List <Paragraph> rTParagraphs = this.RTParagraphs;
if (rTParagraphs != null && rTParagraphs.Count != 0)
{
using (RevertingDeviceContext revertingDeviceContext = new RevertingDeviceContext(g, this.Dpi))
{
Win32DCSafeHandle hdc = revertingDeviceContext.Hdc;
if (highlights != null)
{
RPLFormat.Directions direction = this.RTTextbox.TextBoxProps.Direction;
foreach (RTSelectionHighlight highlight in highlights)
{
if (!RichTextRenderer.HighlightStartLessThanOrEqualToEnd(highlight.SelectionStart, highlight.SelectionEnd))
{
TextBoxContext selectionStart = highlight.SelectionStart;
highlight.SelectionStart = highlight.SelectionEnd;
highlight.SelectionEnd = selectionStart;
}
TextRun textRun = default(TextRun);
CaretInfo caretInfo = this.MapLocation(hdc, highlight.SelectionStart, true, true, out textRun);
TextRun textRun2 = default(TextRun);
CaretInfo caretInfo2 = this.MapLocation(hdc, highlight.SelectionEnd, true, true, out textRun2);
if (caretInfo != null && caretInfo2 != null && textRun != null && textRun2 != null)
{
this.SetHighlighting(rTParagraphs, hdc, highlight, textRun, textRun2, caretInfo.Position.X, caretInfo2.Position.X);
}
}
}
Rectangle rectangle2 = (!unitsInMM) ? Rectangle.Round(rectangle) : new Rectangle(TextBox.ConvertToPixels(rectangle.X, this.m_dpi), TextBox.ConvertToPixels(rectangle.Y, this.m_dpi), TextBox.ConvertToPixels(rectangle.Width, this.m_dpi), TextBox.ConvertToPixels(rectangle.Height, this.m_dpi));
revertingDeviceContext.XForm.Transform(ref rectangle2);
Win32ObjectSafeHandle win32ObjectSafeHandle = Win32.CreateRectRgn(rectangle2.Left - 1, rectangle2.Top - 1, rectangle2.Right + 1, rectangle2.Bottom + 1);
if (!win32ObjectSafeHandle.IsInvalid)
{
try
{
if (Win32.SelectClipRgn(hdc, win32ObjectSafeHandle) == 0)
{
Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
}
}
finally
{
win32ObjectSafeHandle.Close();
}
}
TextBox.Render(this.RTTextbox, rTParagraphs, hdc, this.FontCache, offset, rectangle, this.m_dpi, unitsInMM);
if (Win32.SelectClipRgn(hdc, Win32ObjectSafeHandle.Zero) == 0)
{
Marshal.ThrowExceptionForHR(Marshal.GetHRForLastWin32Error());
}
}
}
}
public int GetHeightInPX()
{
return(TextBox.ConvertToPixels(this.GetHeight(), this.Dpi));
}
private static void RenderParagraph(TextBox textBox, Paragraph paragraph, Win32DCSafeHandle hdc, FontCache fontCache, int offsetX, ref int offsetY, Rectangle layoutRectangle, float dpiX)
{
List <TextLine> textLines = paragraph.TextLines;
IParagraphProps paragraphProps = paragraph.ParagraphProps;
bool flag = textBox.TextBoxProps.Direction == RPLFormat.Directions.LTR;
RPLFormat.TextAlignments textAlignments = paragraphProps.Alignment;
if (textAlignments == RPLFormat.TextAlignments.General)
{
textAlignments = textBox.TextBoxProps.DefaultAlignment;
if (!flag)
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Right:
textAlignments = RPLFormat.TextAlignments.Left;
break;
case RPLFormat.TextAlignments.Left:
textAlignments = RPLFormat.TextAlignments.Right;
break;
}
}
}
int num = TextBox.ConvertToPixels(paragraphProps.LeftIndent, dpiX);
int num2 = TextBox.ConvertToPixels(paragraphProps.RightIndent, dpiX);
int num3 = TextBox.ConvertToPixels(paragraphProps.HangingIndent, dpiX);
if (num3 < 0)
{
if (flag)
{
num -= num3;
}
else
{
num2 -= num3;
}
}
if (paragraphProps.ListLevel > 0)
{
int num4 = paragraphProps.ListLevel * TextBox.ConvertToPixels(10.583333f, dpiX);
if (flag)
{
num += num4;
}
else
{
num2 += num4;
}
}
if (textLines == null || textLines.Count == 0)
{
offsetY += TextBox.ConvertToPixels(paragraphProps.SpaceBefore, dpiX);
offsetY += TextBox.ConvertToPixels(paragraphProps.SpaceAfter, dpiX);
}
else
{
Graphics graphics = null;
try
{
for (int i = 0; i < textLines.Count; i++)
{
TextLine textLine = textLines[i];
int ascent = textLine.GetAscent(hdc, fontCache);
textLine.GetDescent(hdc, fontCache);
int height = textLine.GetHeight(hdc, fontCache);
if (textLine.FirstLine)
{
offsetY += TextBox.ConvertToPixels(paragraphProps.SpaceBefore, dpiX);
}
int baselineY = offsetY + ascent;
offsetY += height;
int num5;
switch (textAlignments)
{
case RPLFormat.TextAlignments.Left:
num5 = num;
break;
case RPLFormat.TextAlignments.Center:
{
int num6 = 0;
num6 = ((!textBox.HorizontalText) ? layoutRectangle.Height : layoutRectangle.Width);
num5 = num + (num6 - num - num2) / 2 - textLine.GetWidth(hdc, fontCache) / 2;
break;
}
default:
num5 = ((!textBox.HorizontalText) ? (layoutRectangle.Height - num2 - textLine.GetWidth(hdc, fontCache)) : (layoutRectangle.Width - num2 - textLine.GetWidth(hdc, fontCache)));
break;
}
if (textLine.Prefix != null && textLine.Prefix.Count > 0)
{
int num7 = (!flag) ? (num5 + textLine.GetWidth(hdc, fontCache) + TextBox.ConvertToPixels(4.233333f, dpiX)) : (num5 - TextBox.ConvertToPixels(4.233333f, dpiX) - textLine.GetPrefixWidth(hdc, fontCache));
if (num3 < 0)
{
if (flag && textAlignments == RPLFormat.TextAlignments.Left)
{
num7 += num3;
}
else if (!flag && textAlignments == RPLFormat.TextAlignments.Right)
{
num7 -= num3;
}
}
for (int j = 0; j < textLine.Prefix.Count; j++)
{
TextRun textRun = textLine.Prefix[j];
textBox.TextBoxProps.DrawTextRun(textRun, paragraph, hdc, dpiX, fontCache, num7, offsetY, baselineY, height, layoutRectangle);
num7 += textRun.GetWidth(hdc, fontCache);
}
}
if (textLine.FirstLine && num3 != 0)
{
if (flag)
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Left:
num5 += num3;
break;
case RPLFormat.TextAlignments.Center:
num5 += num3 / 2;
break;
}
}
else
{
switch (textAlignments)
{
case RPLFormat.TextAlignments.Right:
num5 -= num3;
break;
case RPLFormat.TextAlignments.Center:
num5 -= num3 / 2;
break;
}
}
}
int prevRunWidth = 0;
int prevRunX = 0;
TextRun prevRun = null;
int count = textLine.VisualRuns.Count;
for (int k = 0; k < count; k++)
{
TextRun textRun2 = textLine.VisualRuns[k];
int width = textRun2.GetWidth(hdc, fontCache, k == count - 1);
if (!textRun2.IsHighlightTextRun)
{
if (width > 0)
{
textBox.TextBoxProps.DrawTextRun(textRun2, paragraph, hdc, dpiX, fontCache, num5, offsetY, baselineY, height, layoutRectangle);
}
}
else
{
bool flag2 = (flag && k + 1 == count) || (!flag && k == 0);
if (width > 0 || flag2)
{
if (graphics == null)
{
graphics = Graphics.FromHdc(hdc.Handle);
}
TextBox.RenderHighlightedTextRun(textBox, paragraph, textRun2, prevRun, hdc, graphics, fontCache, dpiX, num5, offsetY, baselineY, height, layoutRectangle, width, prevRunWidth, prevRunX, flag2, textLine.LastLine);
}
}
prevRunX = num5;
prevRunWidth = width;
num5 += width;
prevRun = textRun2;
}
if (textLine.LastLine)
{
offsetY += TextBox.ConvertToPixels(paragraphProps.SpaceAfter, dpiX);
}
}
}
finally
{
if (graphics != null)
{
graphics.Dispose();
graphics = null;
}
}
}
}
public static List <Paragraph> Flow(TextBox textBox, Win32DCSafeHandle hdc, float dpiX, FontCache fontCache, FlowContext flowContext, bool keepLines, out float height)
{
if (!(flowContext.Height <= 0.0) && !(flowContext.Width <= 0.0))
{
int num = TextBox.ConvertToPixels(flowContext.ContentOffset, dpiX);
int pixels = num;
TextBoxContext context = flowContext.Context;
RPLFormat.Directions direction = textBox.TextBoxProps.Direction;
List <Paragraph> list = new List <Paragraph>();
Win32ObjectSafeHandle win32ObjectSafeHandle = Win32.SelectObject(hdc, Win32ObjectSafeHandle.Zero);
SizeF flowContextSize;
if (textBox.VerticalText)
{
flowContext.VerticalCanGrow = textBox.TextBoxProps.CanGrow;
flowContextSize = new SizeF((float)TextBox.ConvertToPixels(flowContext.Height, dpiX), (float)TextBox.ConvertToPixels(flowContext.Width, dpiX));
}
else
{
flowContextSize = new SizeF((float)TextBox.ConvertToPixels(flowContext.Width, dpiX), (float)TextBox.ConvertToPixels(flowContext.Height, dpiX));
}
fontCache.WritingMode = textBox.TextBoxProps.WritingMode;
try
{
while (context.ParagraphIndex < textBox.Paragraphs.Count)
{
Paragraph paragraph = textBox.Paragraphs[context.ParagraphIndex];
paragraph.OffsetY = num;
bool flag = LineBreaker.FlowParagraph(paragraph, direction, hdc, dpiX, fontCache, flowContext, keepLines, flowContextSize, ref pixels);
num += paragraph.Height;
if (!keepLines)
{
paragraph.TextLines = null;
}
if (!flag)
{
break;
}
list.Add(paragraph);
if ((float)num >= flowContextSize.Height)
{
if (paragraph.AtEndOfParagraph(context))
{
context.IncrementParagraph();
}
break;
}
context.IncrementParagraph();
}
if ((float)num < flowContextSize.Height)
{
flowContext.AtEndOfTextBox = true;
}
}
finally
{
if (!win32ObjectSafeHandle.IsInvalid)
{
Win32ObjectSafeHandle win32ObjectSafeHandle2 = Win32.SelectObject(hdc, win32ObjectSafeHandle);
win32ObjectSafeHandle2.SetHandleAsInvalid();
win32ObjectSafeHandle.SetHandleAsInvalid();
}
}
height = TextBox.ConvertToMillimeters(num, dpiX);
flowContext.ContentOffset = TextBox.ConvertToMillimeters(pixels, dpiX);
return(list);
}
height = 0f;
return(null);
}
private static bool FlowParagraph(Paragraph paragraph, RPLFormat.Directions direction, Win32DCSafeHandle hdc, float dpiX, FontCache fontCache, FlowContext flowContext, bool keepLines, SizeF flowContextSize, ref int contentOffset)
{
List <TextLine> list = new List <TextLine>();
TextBoxContext context = flowContext.Context;
int num = paragraph.OffsetY;
paragraph.ProcessedEmptyParagraph = false;
bool flag = false;
IParagraphProps paragraphProps = paragraph.ParagraphProps;
if (!flowContext.Updatable || !paragraph.Updated)
{
flag = (context.TextRunIndex == 0 && context.TextRunCharacterIndex == 0);
}
if (flag)
{
num += TextBox.ConvertToPixels(paragraphProps.SpaceBefore, dpiX);
if ((float)num >= flowContextSize.Height)
{
paragraph.Height = num - paragraph.OffsetY;
return(false);
}
}
int num2 = contentOffset;
float num3 = 0f;
float num4 = 0f;
float num5 = 0f;
paragraph.GetParagraphIndents(direction, dpiX, out num3, out num4, out num5);
Stack <int> stack = null;
Stack <int> stack2 = null;
TextLine textLine = null;
while (true)
{
float num6 = num3;
float num7 = num4;
if (flag)
{
if (direction == RPLFormat.Directions.LTR)
{
num6 += num5;
}
else
{
num7 += num5;
}
}
stack = new Stack <int>();
stack2 = new Stack <int>();
textLine = new TextLine();
if (flag)
{
textLine.Prefix = LineBreaker.CreateLinePrefix(paragraph, direction);
textLine.FirstLine = true;
}
if (!LineBreaker.GetLine(paragraph, textLine, hdc, fontCache, flowContext, num6, flowContextSize.Width - num7, flowContextSize.Height - (float)num, stack, stack2, (int)(num6 + num7)))
{
if (list.Count > 0)
{
list[list.Count - 1].LastLine = true;
}
num += TextBox.ConvertToPixels(paragraphProps.SpaceAfter, dpiX);
break;
}
if (keepLines)
{
textLine.ScriptLayout(hdc, fontCache);
}
num += textLine.GetHeight(hdc, fontCache);
list.Add(textLine);
num2 = num;
if ((float)num >= flowContextSize.Height)
{
break;
}
flag = false;
}
paragraph.Height = num - paragraph.OffsetY;
if ((float)num > flowContextSize.Height)
{
if (list.Count > 0 && (float)num2 > flowContextSize.Height)
{
TextLine textLine2 = list[list.Count - 1];
int textRunIndex = 0;
int textRunCharacterIndex = 0;
while (stack.Count > 0)
{
textRunIndex = stack.Pop();
}
while (stack2.Count > 0)
{
textRunCharacterIndex = stack2.Pop();
}
if (flowContext.LineLimit)
{
context.TextRunIndex = textRunIndex;
context.TextRunCharacterIndex = textRunCharacterIndex;
list.RemoveAt(list.Count - 1);
flowContext.OmittedLineHeight = TextBox.ConvertToMillimeters(textLine2.GetHeight(hdc, fontCache), dpiX);
if (textLine2.FirstLine)
{
num2 -= TextBox.ConvertToPixels(paragraphProps.SpaceBefore, dpiX);
}
}
else
{
TextBoxContext textBoxContext = context.Clone();
textBoxContext.TextRunIndex = textRunIndex;
textBoxContext.TextRunCharacterIndex = textRunCharacterIndex;
flowContext.ClipContext = textBoxContext;
}
num2 -= textLine2.GetHeight(hdc, fontCache);
}
paragraph.AdvanceToNextRun(context, false);
paragraph.AdvanceToNextRun(flowContext.ClipContext, false);
if (list.Count > 0)
{
if (flowContext.ClipContext == null && paragraph.AtEndOfParagraph(context))
{
contentOffset = num;
}
else
{
contentOffset = num2;
}
paragraph.TextLines = list;
return(true);
}
paragraph.TextLines = null;
if (paragraph.AtEndOfParagraph(context))
{
contentOffset = num;
}
return(false);
}
paragraph.AdvanceToNextRun(context);
paragraph.TextLines = list;
contentOffset = num;
return(true);
}
public static float FlowVertical(TextBox textBox, Graphics g, FontCache fontCache, FlowContext flowContext, out float width, out float nextWidth)
{
width = (nextWidth = 0f);
List <Paragraph> list = null;
int num = 0;
int val = 2147483647;
int num2 = 0;
float result = 0f;
int num3 = 0;
List <TextLine> list2 = null;
float dpiX = g.DpiX;
Win32DCSafeHandle win32DCSafeHandle = new Win32DCSafeHandle(g.GetHdc(), false);
if (textBox.VerticalText)
{
flowContext.VerticalCanGrow = textBox.TextBoxProps.CanGrow;
num3 = TextBox.ConvertToPixels(flowContext.Height, dpiX);
}
else
{
num3 = TextBox.ConvertToPixels(flowContext.Width, dpiX);
}
try
{
list = LineBreaker.Flow(textBox, win32DCSafeHandle, dpiX, fontCache, flowContext, true, out result);
if (list != null)
{
for (int i = 0; i < list.Count; i++)
{
list2 = list[i].TextLines;
if (list2 != null)
{
float num4 = 0f;
float num5 = 0f;
float num6 = 0f;
float num7 = 0f;
RPLFormat.Directions direction = textBox.TextBoxProps.Direction;
list[i].GetParagraphIndents(direction, dpiX, out num4, out num5, out num6);
num7 = num4 + num5;
if (list2[0].FirstLine)
{
num7 += num6;
}
num2 = Math.Max(num2, (int)num7);
for (int j = 0; j < list2.Count; j++)
{
num = Math.Max(num, list2[j].GetWidth(win32DCSafeHandle, fontCache, false) + (int)num7);
val = Math.Min(val, list2[j].GetWidth(win32DCSafeHandle, fontCache, false) + (int)num7);
}
list[i].TextLines = null;
}
}
}
val = Math.Max(val, num2);
if (num > 0)
{
int num8 = 0;
if (flowContext.VerticalCanGrow && flowContext.ForcedCharTrim)
{
num8 = flowContext.CharTrimmedRunWidth;
}
else
{
num8 = (num - val) / 2;
if (num8 == 0)
{
num8 = num / 2;
}
else
{
num8 += val;
if (num8 >= num3)
{
num8 /= 2;
}
}
}
width = TextBox.ConvertToMillimeters(num, dpiX);
nextWidth = TextBox.ConvertToMillimeters(num8, dpiX);
return(result);
}
return(result);
}
finally
{
fontCache.ResetGraphics();
if (!win32DCSafeHandle.IsInvalid)
{
g.ReleaseHdc();
}
}
}