// Actually produce the layout data.
// The algorithm is basically ripped from CSS Flexbox.
//
// 1. Add up all the space each word takes
// 2. Subtract that from the line width (w)
// 3. Save that as the free space (fs)
// 4. Add up each gap's priority value (Σpri)
// 5. Assign each gap a final priority (fp) of ((priMax - pri) / Σpri)
// 6. That space has (fp*fs) pixels.
public static ImmutableArray <Offset> Layout(
ISectionable src,
ImmutableArray <Offset> text,
int w,
IFontLibrary fonts,
float scale = 1.0f,
int lineSpacing = 0,
int wordSpacing = 0,
FontClass?fclass = default,
LayoutOptions options = LayoutOptions.Default
)
{
var lw = new WorkQueue <(
List <Offset> wds,
List <int> gaps,
int lnrem,
int sptot,
int maxPri,
int tPri,
int lnh
)>(postcreate: i => i with
{
wds = new List <Offset>(),
gaps = new List <int>()
});
public static ImmutableArray <Offset> Layout(
ISectionable text,
int w,
IFontLibrary fonts,
float scale = 1.0f,
int lineSpacing = 0,
int wordSpacing = 0,
int runeSpacing = 0,
FontClass?fclass = default,
LayoutOptions options = LayoutOptions.Default
) => Layout(
text,
Split(text, fonts, scale, wordSpacing, runeSpacing, fclass, options),
w,
fonts,
scale,
lineSpacing, wordSpacing,
fclass,
options
);
