diff options
| -rw-r--r-- | def.go | 4 | ||||
| -rw-r--r-- | fpdf.go | 9 | ||||
| -rw-r--r-- | fpdf_test.go | 23 | ||||
| -rw-r--r-- | pdf/reference/Fpdf_UnderlineThickness.pdf | bin | 0 -> 1156 bytes |
4 files changed, 34 insertions, 2 deletions
@@ -452,6 +452,7 @@ type Pdf interface { SetTextSpotColor(nameStr string, tint byte) SetTitle(titleStr string, isUTF8 bool) SetTopMargin(margin float64) + SetUnderlineThickness(thickness float64) SetXmpMetadata(xmpStream []byte) SetX(x float64) SetXY(x, y float64) @@ -595,7 +596,8 @@ type Fpdf struct { // Composite values of colors draw, fill, text colorType } - spotColorMap map[string]spotColorType // Map of named ink-based colors + spotColorMap map[string]spotColorType // Map of named ink-based colors + userUnderlineThickness float64 // A custom user underline thickness multiplier. } type encType struct { @@ -202,6 +202,7 @@ func fpdfNew(orientationStr, unitStr, sizeStr, fontDirStr string, size SizeType) f.layerInit() f.catalogSort = gl.catalogSort f.creationDate = gl.creationDate + f.userUnderlineThickness = 1 return } @@ -3538,10 +3539,16 @@ func blankCount(str string) (count int) { return } +// SetUnderlineThickness accepts a multiplier for adjusting the text underline +// thickness, defaulting to 1. See SetUnderlineThickness example. +func (f *Fpdf) SetUnderlineThickness(thickness float64) { + f.userUnderlineThickness = thickness +} + // Underline text func (f *Fpdf) dounderline(x, y float64, txt string) string { up := float64(f.currentFont.Up) - ut := float64(f.currentFont.Ut) + ut := float64(f.currentFont.Ut) * f.userUnderlineThickness w := f.GetStringWidth(txt) + f.ws*float64(blankCount(txt)) return sprintf("%.2f %.2f %.2f %.2f re f", x*f.k, (f.h-(y-up/1000*f.fontSize))*f.k, w*f.k, -ut/1000*f.fontSizePt) diff --git a/fpdf_test.go b/fpdf_test.go index c6020f3..43cea30 100644 --- a/fpdf_test.go +++ b/fpdf_test.go @@ -2688,3 +2688,26 @@ func ExampleFpdf_RoundedRect() { // Output: // Successfully generated pdf/Fpdf_RoundedRect.pdf } + +// ExampleFpdf_SetUnderlineThickness demonstrates how to adjust the text +// underline thickness. +func ExampleFpdf_SetUnderlineThickness() { + pdf := gofpdf.New("P", "mm", "A4", "") // 210mm x 297mm + pdf.AddPage() + pdf.SetFont("Arial", "U", 12) + + pdf.SetUnderlineThickness(0.5) + pdf.CellFormat(0, 10, "Thin underline", "", 1, "", false, 0, "") + + pdf.SetUnderlineThickness(1) + pdf.CellFormat(0, 10, "Normal underline", "", 1, "", false, 0, "") + + pdf.SetUnderlineThickness(2) + pdf.CellFormat(0, 10, "Thicker underline", "", 1, "", false, 0, "") + + fileStr := example.Filename("Fpdf_UnderlineThickness") + err := pdf.OutputFileAndClose(fileStr) + example.Summary(err, fileStr) + // Output: + // Successfully generated pdf/Fpdf_UnderlineThickness.pdf +} diff --git a/pdf/reference/Fpdf_UnderlineThickness.pdf b/pdf/reference/Fpdf_UnderlineThickness.pdf Binary files differnew file mode 100644 index 0000000..49ad9b1 --- /dev/null +++ b/pdf/reference/Fpdf_UnderlineThickness.pdf |