Support negative X position when placing image

1 files changed, 20 insertions, 0 deletions

diff --git a/fpdf_test.go b/fpdf_test.go
index 9f0ee96..d9fa429 100644
--- a/fpdf_test.go
+++ b/fpdf_test.go
@@ -714,6 +714,26 @@ func ExampleFpdf_Image() {
 	// Successfully generated pdf/Fpdf_Image.pdf
 }
 
+// This example demonstrates how the AllowNegativePosition field of the
+// ImageOption struct can be used to affect horizontal image placement.
+func ExampleFpdf_ImageOption() {
+	var opt gofpdf.ImageOptions
+
+	pdf := gofpdf.New("P", "mm", "A4", "")
+	pdf.AddPage()
+	pdf.SetFont("Arial", "", 11)
+	pdf.SetX(60)
+	opt.ImageType = "png"
+	pdf.ImageOptions(example.ImageFile("logo.png"), -10, 10, 30, 0, false, opt, 0, "")
+	opt.AllowNegativePosition = true
+	pdf.ImageOptions(example.ImageFile("logo.png"), -10, 50, 30, 0, false, opt, 0, "")
+	fileStr := example.Filename("Fpdf_ImageOption")
+	err := pdf.OutputFileAndClose(fileStr)
+	example.Summary(err, fileStr)
+	// Output:
+	// Successfully generated pdf/Fpdf_ImageOption.pdf
+}
+
 // This examples demonstrates Landscape mode with images.
 func ExampleFpdf_SetAcceptPageBreakFunc() {
 	var y0 float64