diff options
Diffstat (limited to 'fpdf.go')
| -rw-r--r-- | fpdf.go | 41 |
1 files changed, 41 insertions, 0 deletions
@@ -2160,6 +2160,47 @@ func (f *Fpdf) WriteLinkID(h float64, displayStr string, linkID int) { f.write(h, displayStr, linkID, "") } +// WriteAligned is an implementation of Write that makes it possible to align +// text. +// +// width indicates the width of the box the text will be drawn in. This is in +// the unit of measure specified in New(). If it is set to 0, the bounding box +//of the page will be taken (pageWidth - leftMargin - rightMargin). +// +// lineHeight indicates the line height in the unit of measure specified in +// New(). +// +// alignStr sees to horizontal alignment of the given textStr. The options are +// "L", "C" and "R" (Left, Center, Right). The default is "L". +func (f *Fpdf) WriteAligned(width, lineHeight float64, textStr, alignStr string) { + lMargin, _, rMargin, _ := f.GetMargins() + + if width == 0 { + pageWidth, _ := f.GetPageSize() + width = pageWidth - (lMargin + rMargin) + } + + lines := f.SplitLines([]byte(textStr), width) + + for _, lineBt := range lines { + lineStr := string(lineBt[:]) + lineWidth := f.GetStringWidth(lineStr) + + switch alignStr { + case "C": + f.SetLeftMargin(lMargin + ((width - lineWidth) / 2)) + f.Write(lineHeight, lineStr) + f.SetLeftMargin(lMargin) + case "R": + f.SetLeftMargin(lMargin + (width - lineWidth) - rMargin) + f.Write(lineHeight, lineStr) + f.SetLeftMargin(lMargin) + default: + f.Write(lineHeight, lineStr) + } + } +} + // Ln performs a line break. The current abscissa goes back to the left margin // and the ordinate increases by the amount passed in parameter. A negative // value of h indicates the height of the last printed cell. |