v0.0.494 add tables to wpdf

imageext/image.go

@@ -169,7 +169,7 @@ func EncodeImage(img image.Image, compression ImageCompresson) (bytes.Buffer, st
 	}
 }
 
-func ObjectFitImage(img image.Image, bbw float64, bbh float64, fit ImageFit, fillColor color.Color) (image.Image, error) {
+func ObjectFitImage(img image.Image, bbw float64, bbh float64, fit ImageFit, fillColor color.Color) (image.Image, PercentageRectangle, error) {
 
 	iw := img.Bounds().Size().X
 	ih := img.Bounds().Size().Y
@@ -214,12 +214,12 @@ func ObjectFitImage(img image.Image, bbw float64, bbh float64, fit ImageFit, fil
 		draw.Draw(newImg, newImg.Bounds(), &image.Uniform{C: fillColor}, image.Pt(0, 0), draw.Src)
 		draw.Draw(newImg, newImg.Bounds(), img, image.Pt(0, 0), draw.Over)
 
-		return newImg, nil
+		return newImg, newImg.Bounds(), nil
 	}
 
 	if fit == ImageFitContainCenter || fit == ImageFitContainTopLeft || fit == ImageFitContainTopRight || fit == ImageFitContainBottomLeft || fit == ImageFitContainBottomRight {
 
-		// image-fit:cover fills the target-bounding-box with the image, there is potentially empty-space, it potentially cuts parts of the image away
+		// image-fit:contain fills the target-bounding-box with the image, there is potentially empty-space, it potentially cuts parts of the image away
 
 		// we use the bigger (!) value of facW and facH,
 		// because the image is made to fit the bounding-box, the bigger factor (= the dimension the image is stretched less) is relevant
@@ -266,7 +266,7 @@ func ObjectFitImage(img image.Image, bbw float64, bbh float64, fit ImageFit, fil
 		draw.Draw(newImg, newImg.Bounds(), &image.Uniform{C: fillColor}, image.Pt(0, 0), draw.Src)
 		draw.Draw(newImg, destBounds, img, image.Pt(0, 0), draw.Over)
 
-		return newImg, nil
+		return newImg, destBounds, nil
 	}
 
 	if fit == ImageFitStretch {
@@ -293,10 +293,10 @@ func ObjectFitImage(img image.Image, bbw float64, bbh float64, fit ImageFit, fil
 		draw.Draw(newImg, newImg.Bounds(), &image.Uniform{C: fillColor}, image.Pt(0, 0), draw.Src)
 		draw.Draw(newImg, newImg.Bounds(), img, image.Pt(0, 0), draw.Over)
 
-		return newImg, nil
+		return newImg, newImg.Bounds(), nil
 	}
 
-	return nil, exerr.New(exerr.TypeInternal, fmt.Sprintf("unknown image-fit: '%s'", fit)).Build()
+	return nil, image.Rectangle{}, exerr.New(exerr.TypeInternal, fmt.Sprintf("unknown image-fit: '%s'", fit)).Build()
 }
 
 func VerifyAndDecodeImage(data io.Reader, mime string) (image.Image, error) {

imageext/types.go

@@ -0,0 +1,24 @@
+package imageext
+
+type Rectangle struct {
+	X float64
+	Y float64
+	W float64
+	H float64
+}
+
+type PercentageRectangle struct {
+	X float64 // [0..1]
+	Y float64 // [0..1]
+	W float64 // [0..1]
+	H float64 // [0..1]
+}
+
+func (r PercentageRectangle) Of(ref Rectangle) Rectangle {
+	return Rectangle{
+		X: ref.X + r.X*ref.W,
+		Y: ref.Y + r.Y*ref.H,
+		W: r.W * ref.W,
+		H: r.H * ref.H,
+	}
+}