diff options
Diffstat (limited to 'def.go')
| -rw-r--r-- | def.go | 16 |
1 files changed, 13 insertions, 3 deletions
@@ -71,6 +71,7 @@ type ImageInfoType struct { dp string trns []int scale float64 // document scaling factor + dpi float64 } // PointConvert returns the value of pt, expressed in points (1/72 inch), as a @@ -97,17 +98,26 @@ func (f *Fpdf) UnitToPointConvert(u float64) (pt float64) { // Extent returns the width and height of the image in the units of the Fpdf // object. func (info *ImageInfoType) Extent() (wd, ht float64) { - return info.w / info.scale, info.h / info.scale + return info.Width(), info.Height() } // Width returns the width of the image in the units of the Fpdf object. func (info *ImageInfoType) Width() float64 { - return info.w / info.scale + return info.w / (info.scale * info.dpi / 72) } // Height returns the height of the image in the units of the Fpdf object. func (info *ImageInfoType) Height() float64 { - return info.h / info.scale + return info.h / (info.scale * info.dpi / 72) +} + +// Dpi sets the dots per inch for an image +// PNG images MAY have their dpi set automatically, if the image +// specifies it. DPI information is not currently available +// automatically for JPG and GIF images, so if it's important to +// you, you can set it here. It defaults to 72 dpi. +func (info *ImageInfoType) SetDpi(dpi float64) { + info.dpi = dpi } type fontFileType struct { |