[Interest] Use Book and Medium weight Gotham font from QML?

[Allan Sandfeld Jensen]

On Monday 04 April 2016, Elvis Stansvik wrote:
> Hi all,
> 
> I'm targeting Qt 5.4.1 and it seems there's no Font.Medium enumeration
> value there? I get:
> 
>     Unable to assign [undefined] to int
> 
> The font we're using for this app is our company font, which is Gotham
> from Hoefler & Co. The weights we need in the UI are Book and Medium,
> each defined in its own .otf (but under the same family name
> "Gotham"), as shown by the fc-scan output below:
> 
> estan at newton:~$ fc-scan Gotham-Book.otf
> Pattern has 22 elts (size 32)
>         family: "Gotham"(s) "Gotham Book"(s)
>         familylang: "en"(s) "en"(s)
>         style: "Book"(s) "Regular"(s)
>         stylelang: "en"(s) "en"(s)
>         fullname: "Gotham-Book"(s)
>         fullnamelang: "en"(s)
>         slant: 0(i)(s)
>         weight: 50(i)(s)
>         width: 100(i)(s)
>         foundry: "unknown"(s)
>         file: "Gotham-Book.otf"(s)
>         index: 0(i)(s)
>         outline: True(s)
>         scalable: True(s)
>         charset:
>         0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffdfcfaf
> ffffffff ffffffff
>         0001: cffffcff fec3fccf cffff1ff 7ffffc3f 00040000 00000000
> 00000000 fc000000
>         0002: 03000000 00000000 02000000 00000000 00000000 00000000
> 3f0000c0 00000000
>         0003: 00000000 00000040 00000000 00000000 00000000 00000000
> 00000000 00000000
>         000e: 00000000 80000000 00000000 00000000 00000000 00000000
> 00000000 00000000
>         001e: 00000000 00000000 00000000 00000000 0000003f 00000000
> 00000000 000c0000
>         0020: 771806bc 06010047 00000010 03f10000 000003ff 00021742
> 00000000 00000000
>         0021: 00800000 00000005 7ff80000 00000000 00000000 00000000
> 00000000 00000000
>         0022: 00040000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
>         00fb: 0000001f 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> (s)
>         lang:
> aa|ay|bi|br|bs|ca|ch|co|cs|cy|da|de|en|es|et|eu|fi|fj|fo|fr|fur|fy|gd|gl|g
> v|ho|hr|hu|ia|id|ie|io|is|it|la|lb|lt|lv|mg|mh|mt|nb|nds|nl|nn|no|nr|nso|ny
> |oc|om|pl|pt|rm|sk|sl|sma|smj|so|sq|ss|st|sv|sw|tk|tl|tn|tr|ts|uz|vo|vot|wa
> |wen|xh|yap|zu|an|crh|csb|fil|hsb|ht|jv|kj|ku-tr|kwm|li|ms|ng|pap-an|pap-aw
> |rn|rw|sc|sg|sn|su|za(s) fontversion: 144179(i)(s)
>         capability: "otlayout:     otlayout:latn"(s)
>         fontformat: "CFF"(s)
>         decorative: False(s)
>         hash:
> "sha256:3083f405cb35b16e06d0108836dd6552630c85c7fc5412a5de724e57e6fd7348"(
> s) postscriptname: "Gotham-Book"(s)
> 
> estan at newton:~$ fc-scan Gotham-Medium.otf
> Pattern has 22 elts (size 32)
>         family: "Gotham"(s) "Gotham Medium"(s)
>         familylang: "en"(s) "en"(s)
>         style: "Medium"(s) "Regular"(s)
>         stylelang: "en"(s) "en"(s)
>         fullname: "Gotham-Medium"(s)
>         fullnamelang: "en"(s)
>         slant: 0(i)(s)
>         weight: 80(i)(s)
>         width: 100(i)(s)
>         foundry: "unknown"(s)
>         file: "Gotham-Medium.otf"(s)
>         index: 0(i)(s)
>         outline: True(s)
>         scalable: True(s)
>         charset:
>         0000: 00000000 ffffffff ffffffff 7fffffff 00000000 ffdfcfaf
> ffffffff ffffffff
>         0001: cffffcff fec3fccf cffff1ff 7ffffc3f 00040000 00000000
> 00000000 fc000000
>         0002: 03000000 00000000 02000000 00000000 00000000 00000000
> 3f0000c0 00000000
>         0003: 00000000 00000040 00000000 00000000 00000000 00000000
> 00000000 00000000
>         000e: 00000000 80000000 00000000 00000000 00000000 00000000
> 00000000 00000000
>         001e: 00000000 00000000 00000000 00000000 0000003f 00000000
> 00000000 000c0000
>         0020: 771806bc 06010047 00000010 03f10000 000003ff 00021742
> 00000000 00000000
>         0021: 00800000 00000005 7ff80000 00000000 00000000 00000000
> 00000000 00000000
>         0022: 00040000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
>         00fb: 0000001f 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> (s)
>         lang:
> aa|ay|bi|br|bs|ca|ch|co|cs|cy|da|de|en|es|et|eu|fi|fj|fo|fr|fur|fy|gd|gl|g
> v|ho|hr|hu|ia|id|ie|io|is|it|la|lb|lt|lv|mg|mh|mt|nb|nds|nl|nn|no|nr|nso|ny
> |oc|om|pl|pt|rm|sk|sl|sma|smj|so|sq|ss|st|sv|sw|tk|tl|tn|tr|ts|uz|vo|vot|wa
> |wen|xh|yap|zu|an|crh|csb|fil|hsb|ht|jv|kj|ku-tr|kwm|li|ms|ng|pap-an|pap-aw
> |rn|rw|sc|sg|sn|su|za(s) fontversion: 144179(i)(s)
>         capability: "otlayout:     otlayout:latn"(s)
>         fontformat: "CFF"(s)
>         decorative: False(s)
>         hash:
> "sha256:bc397773a547218b8c334f9a40ea8e58f55198fab6095b103e598634fe273450"(
> s) postscriptname: "Gotham-Medium"(s)
> 
> estan at newton:~/orexplore/doc/GrafiskProfil/Typsnitt/Gotham$
> 
> And I'm loading these as follows:
> 
> Style {
>     readonly property string mediumFontFamily: __gothamMediumLoader.name
>     readonly property string regularFontFamily: __gothamBookLoader.name
> 
>     property FontLoader __gothamBookLoader: FontLoader {
>         source: "fonts/Gotham-Book.otf"
>     }
> 
>     property FontLoader __gothamMediumLoader: FontLoader {
>         source: "fonts/Gotham-Medium.otf"
>     }
> 
>     ...
> }
> 
> and trying to use them with:
> 
> Text {
>     text: "Foo"
>     font.family: Style.regularFontFamily
>     font.weight: Font.Normal
> }
> 
> Text {
>     text: "Foo"
>     font.family: Style.mediumFontFamily
>     font.weight: Font.Medium
> }
> 
Have you tried:
font.styleName: "Medium"

styleName is the most direct way to select a specific style of a font without 
having to go through matching of style property which may be wrongly encoded 
in the font .

Best regards
`Allan