Fixed the Pdf interface to be implemented by Fpdf and Tpl again. Added tests to ensure they will always implement (#212)

2 files changed, 9 insertions, 1 deletions

diff --git a/def.go b/def.go
index 2bbb572..b1dbc8c 100644
--- a/def.go
+++ b/def.go
@@ -430,7 +430,8 @@ type Pdf interface {
 	SetLineWidth(width float64)
 	SetLink(link int, y float64, page int)
 	SetMargins(left, top, right float64)
-	SetPageBox(t string, pb PageBox)
+	SetPageBoxRec(t string, pb PageBox)
+	SetPageBox(t string, x, y, wd, ht float64)
 	SetProtection(actionFlag byte, userPassStr, ownerPassStr string)
 	SetRightMargin(margin float64)
 	SetSubject(subjectStr string, isUTF8 bool)
diff --git a/fpdf_test.go b/fpdf_test.go
index 61dc6f9..9594431 100644
--- a/fpdf_test.go
+++ b/fpdf_test.go
@@ -57,6 +57,13 @@ func cleanup() {
 		})
 }
 
+func TestFpdfImplementPdf(t *testing.T) {
+	// this will not compile if Fpdf and Tpl
+	// do not implement Pdf
+	var _ gofpdf.Pdf = (*gofpdf.Fpdf)(nil)
+	var _ gofpdf.Pdf = (*gofpdf.Tpl)(nil)
+}
+
 // TestIssue0116 addresses issue 116 in which library silently fails after
 // calling CellFormat when no font has been set.
 func TestIssue0116(t *testing.T) {