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More drawtext conversions. This isn't going to be fun; let's try a different approach (one that's also more Go-like).

This commit is contained in:
Pietro Gagliardi 2018-08-16 10:28:57 -04:00
parent c1f1aad090
commit 75e67484a3
1 changed files with 54 additions and 39 deletions
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93
drawtext.go
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@ -97,9 +97,10 @@ func (a *Attribute) Size() float64 {
// Note that due to restrictions in early versions of Windows, some
// fonts have "special" weights be exposed in many programs as
// separate font families. This is perhaps most notable with
// Arial Black. libui does not do this, even on Windows (because the
// DirectWrite API libui uses on Windows does not do this); to
// specify Arial Black, use family Arial and weight TextWeightBlack.
// Arial Black. Package ui does not do this, even on Windows
// (because the DirectWrite API libui uses on Windows does not do
// this); to specify Arial Black, use family Arial and weight
// TextWeightBlack.
type TextWeight int
const (
TextWeightMinimum = 0,
@ -133,59 +134,73 @@ func (a *Attribute) Weight() TextWeight {
return TextWeight(C.uiAttributeWeight(a.a))
}
////// TODOTODO
// uiTextItalic represents possible italic modes for a font. Italic
// TextItalic represents possible italic modes for a font. Italic
// represents "true" italics where the slanted glyphs have custom
// shapes, whereas oblique represents italics that are merely slanted
// versions of the normal glyphs. Most fonts usually have one or the
// other.
_UI_ENUM(uiTextItalic) {
uiTextItalicNormal,
uiTextItalicOblique,
uiTextItalicItalic,
};
type TextItalic int
const (
TextItalicNormal TextItalic = iota
TextItalicOblique
TextItalicItalic
)
// uiNewItalicAttribute() creates a new uiAttribute that changes the
// NewItalicAttribute creates a new Attribute that changes the
// italic mode of the text it is applied to. It is an error to specify an
// italic mode not specified in uiTextItalic.
_UI_EXTERN uiAttribute *uiNewItalicAttribute(uiTextItalic italic);
// italic mode not specified in TextItalic.
func NewItalicAttribute(italic TextItalic) *Attribute {
return &Attribute{
a: C.uiNewItalicAttribute(C.uiTextItalic(italic)),
}
}
// uiAttributeItalic() returns the font italic mode stored in a. It is an
// error to call this on a uiAttribute that does not hold a font italic
// Italic returns the font italic mode stored in a. It is an
// error to call this on an Attribute that does not hold a font italic
// mode.
_UI_EXTERN uiTextItalic uiAttributeItalic(const uiAttribute *a);
func (a *Attribute) Italic() TextItalic {
return TextItalic(C.uiAttributeItalic(a.a))
}
// uiTextStretch represents possible stretches (also called "widths")
// TextStretch represents possible stretches (also called "widths")
// of a font.
//
// Note that due to restrictions in early versions of Windows, some
// fonts have "special" stretches be exposed in many programs as
// separate font families. This is perhaps most notable with
// Arial Condensed. libui does not do this, even on Windows (because
// the DirectWrite API libui uses on Windows does not do this); to
// specify Arial Condensed, use family Arial and stretch
// uiTextStretchCondensed.
_UI_ENUM(uiTextStretch) {
uiTextStretchUltraCondensed,
uiTextStretchExtraCondensed,
uiTextStretchCondensed,
uiTextStretchSemiCondensed,
uiTextStretchNormal,
uiTextStretchSemiExpanded,
uiTextStretchExpanded,
uiTextStretchExtraExpanded,
uiTextStretchUltraExpanded,
};
// Arial Condensed. Package ui does not do this, even on Windows
// (because the DirectWrite API package ui uses on Windows does
// not do this); to specify Arial Condensed, use family Arial and
// stretch TextStretchCondensed.
type TextStretch int
const (
TextStretchUltraCondensed TextStretch = iota
TextStretchExtraCondensed
TextStretchCondensed
TextStretchSemiCondensed
TextStretchNormal
TextStretchSemiExpanded
TextStretchExpanded
TextStretchExtraExpanded
TextStretchUltraExpanded
)
// uiNewStretchAttribute() creates a new uiAttribute that changes the
// NewStretchAttribute creates a new Attribute that changes the
// stretch of the text it is applied to. It is an error to specify a strech
// not specified in uiTextStretch.
_UI_EXTERN uiAttribute *uiNewStretchAttribute(uiTextStretch stretch);
// not specified in TextStretch.
func NewStretchAttribute(stretch TextStretch) *Attribute {
return &Attribute{
a: C.uiNewStretchAttribute(C.uiTextStretch(stretch)),
}
}
// uiAttributeStretch() returns the font stretch stored in a. It is an
// error to call this on a uiAttribute that does not hold a font stretch.
_UI_EXTERN uiTextStretch uiAttributeStretch(const uiAttribute *a);
// Stretch returns the font stretch stored in a. It is an
// error to call this on an Attribute that does not hold a font stretch.
func (a *Attribute) Stretch() TextStretch {
return TextStretch(C.uiAttributeStretch(a.a))
}
/////// TODOTODO
// uiNewColorAttribute() creates a new uiAttribute that changes the
// color of the text it is applied to. It is an error to specify an invalid