/// <summary> /// Paints the text decoration /// </summary> /// <param name="g"></param> /// <param name="rectangle"> </param> /// <param name="isFirst"> </param> /// <param name="isLast"> </param> private void PaintDecoration(Graphics g, RectangleF rectangle, bool isFirst, bool isLast) { if (string.IsNullOrEmpty(TextDecoration) || TextDecoration == CssConstants.None || IsImage) { return; } float desc = CssUtils.GetDescent(ActualFont); float asc = CssUtils.GetAscent(ActualFont); float y = 0f; if (TextDecoration == CssConstants.Underline) { y = rectangle.Bottom - desc + 0.6f; } else if (TextDecoration == CssConstants.LineThrough) { y = rectangle.Bottom - desc - asc / 2; } else if (TextDecoration == CssConstants.Overline) { y = rectangle.Bottom - desc - asc - 2; } y -= ActualPaddingBottom - ActualBorderBottomWidth; float x1 = rectangle.X; float x2 = rectangle.Right; if (isFirst) { x1 += ActualPaddingLeft + ActualBorderLeftWidth; } if (isLast) { x2 -= ActualPaddingRight + ActualBorderRightWidth; x2 -= ActualWordSpacing + 0.8f * CssUtils.GetWordEndWhitespace(ActualFont); } g.DrawLine(new Pen(ActualColor), x1, y, x2, y); }
/// <summary> /// Recursively flows the content of the box using the inline model /// </summary> /// <param name="g">Device Info</param> /// <param name="blockbox">Blockbox that contains the text flow</param> /// <param name="box">Current box to flow its content</param> /// <param name="maxright">Maximum reached right</param> /// <param name="linespacing">Space to use between rows of text</param> /// <param name="startx">x starting coordinate for when breaking lines of text</param> /// <param name="line">Current linebox being used</param> /// <param name="curx">Current x coordinate that will be the left of the next word</param> /// <param name="cury">Current y coordinate that will be the top of the next word</param> /// <param name="maxbottom">Maximum bottom reached so far</param> private static void FlowBox(Graphics g, CssBox blockbox, CssBox box, float maxright, float linespacing, float startx, ref CssLineBox line, ref float curx, ref float cury, ref float maxbottom) { var startY = cury; box.FirstHostingLineBox = line; foreach (CssBox b in box.Boxes) { float leftspacing = b.ActualMarginLeft + b.ActualBorderLeftWidth + b.ActualPaddingLeft; float rightspacing = b.ActualMarginRight + b.ActualBorderRightWidth + b.ActualPaddingRight; b.RectanglesReset(); b.MeasureWordsSize(g); curx += leftspacing; if (b.Words.Count > 0) { // fix word space for first word in inline tag if (!b.Words[0].IsImage && b.Words[0].HasSpaceBefore && b.Display == CssConstants.Inline) { var sib = DomUtils.GetPreviousContainingBlockSibling(b); if (sib != null && sib.Display == CssConstants.Inline) { curx += b.ActualWordSpacing; } } foreach (var word in b.Words) { if (maxbottom - cury < box.ActualLineHeight) { maxbottom += box.ActualLineHeight - (maxbottom - cury); } if ((b.WhiteSpace != CssConstants.Nowrap && curx + word.Width + rightspacing > maxright) || word.IsLineBreak) { curx = startx; cury = maxbottom + linespacing; line = new CssLineBox(blockbox); if (word.IsImage || word.Equals(b.FirstWord)) { curx += leftspacing; } } // atodo: why? line.ReportExistanceOf(word); word.Left = curx; // -word.LastMeasureOffset.X + 1; word.Top = cury; // - word.LastMeasureOffset.Y; curx = word.Right + (word.IsImage ? b.ActualWordSpacing : 0); // +word.SpacesAfterWidth; maxbottom = Math.Max(maxbottom, word.Bottom); //+ (word.IsImage ? topspacing + bottomspacing : 0)); } // fix word space for last word that is right before inline tag var lastWord = b.Words[b.Words.Count - 1]; if (!lastWord.IsImage && !lastWord.HasSpaceAfter) { var next = DomUtils.GetNextSibling(b); if (next == null || next.Display == CssConstants.Inline) { curx -= b.ActualWordSpacing + CssUtils.GetWordEndWhitespace(b.ActualFont); } } } else { FlowBox(g, blockbox, b, maxright, linespacing, startx, ref line, ref curx, ref cury, ref maxbottom); } curx += rightspacing; } // handle height setting if (maxbottom - startY < box.ActualHeight) { maxbottom += box.ActualHeight - (maxbottom - startY); } // handle box that is only a whitespace if (box.Text == " " && !box.IsImage && box.IsInline && box.Boxes.Count == 0 && box.Words.Count == 0) { curx += box.ActualWordSpacing; } box.LastHostingLineBox = line; }