mirror of
https://github.com/kovidgoyal/kitty
synced 2026-07-06 08:01:58 +02:00
Implement toggling of boolean features
This commit is contained in:
Kovid Goyal
@@ -4,6 +4,7 @@ import (
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"fmt"
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"maps"
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"math"
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"slices"
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"strconv"
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"strings"
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"sync"
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@@ -280,133 +281,8 @@ func (self *face_panel) set(setting string) {
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}
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}
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type ParsedFontFeature struct {
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tag string
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val uint
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is_bool bool
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}
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func (self ParsedFontFeature) String() string {
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if self.is_bool {
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return utils.IfElse(self.val == 0, "-", "+") + self.tag
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}
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return fmt.Sprintf("%s=%d", self.tag, self.val)
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}
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type settable_string struct {
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val string
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is_set bool
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}
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type FontSpec struct {
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family, style, postscript_name, full_name, system, variable_name settable_string
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axes map[string]float64
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features []ParsedFontFeature
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}
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func (self FontSpec) String() string {
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if self.system.val != "" {
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return self.system.val
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}
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ans := strings.Builder{}
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a := func(k string, v settable_string) {
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if v.is_set {
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ans.WriteString(fmt.Sprintf(" %s=%s", k, shlex.Quote(v.val)))
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}
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}
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a(`family`, self.family)
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a(`style`, self.style)
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a(`postscript_name`, self.postscript_name)
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a(`full_name`, self.full_name)
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a(`variable_name`, self.variable_name)
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for name, val := range self.axes {
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a(name, settable_string{strconv.FormatFloat(val, 'f', -1, 64), true})
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}
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if len(self.features) > 0 {
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buf := strings.Builder{}
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for _, f := range self.features {
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buf.WriteString(f.String())
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buf.WriteString(" ")
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}
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a(`features`, settable_string{strings.TrimSpace(buf.String()), true})
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}
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return strings.TrimSpace(ans.String())
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}
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func NewParsedFontFeature(x string) (ans ParsedFontFeature, err error) {
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if x != "" {
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if x[0] == '+' || x[1] == '-' {
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return ParsedFontFeature{x[1:], utils.IfElse(x[0] == '+', uint(1), uint(0)), true}, nil
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} else {
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tag, val, found := strings.Cut(x, "=")
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pff := ParsedFontFeature{tag: tag}
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if found {
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v, err := strconv.ParseUint(val, 10, 0)
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if err != nil {
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return ans, err
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}
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pff.val = uint(v)
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}
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return pff, nil
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}
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}
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return
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}
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func NewFontSpec(spec string) (ans FontSpec, err error) {
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if spec == "" || spec == "auto" {
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ans.system = settable_string{"auto", true}
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return
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}
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parts, err := shlex.Split(spec)
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if err != nil {
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return
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}
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if !strings.Contains(parts[0], "=") {
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ans.system = settable_string{spec, true}
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return
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}
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for _, item := range parts {
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k, v, found := strings.Cut(item, "=")
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if !found {
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return ans, fmt.Errorf(fmt.Sprintf("The font specification %s is invalid as %s does not contain an =", spec, item))
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}
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switch k {
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case "family":
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ans.family = settable_string{v, true}
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case "style":
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ans.style = settable_string{v, true}
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case "full_name":
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ans.full_name = settable_string{v, true}
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case "postscript_name":
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ans.postscript_name = settable_string{v, true}
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case "variable_name":
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ans.variable_name = settable_string{v, true}
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case "features":
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for _, x := range utils.NewSeparatorScanner(v, " ").Split(v) {
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pff, err := NewParsedFontFeature(x)
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if err != nil {
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return ans, err
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}
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ans.features = append(ans.features, pff)
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}
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default:
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f, err := strconv.ParseFloat(v, 64)
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if err != nil {
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return ans, err
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}
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ans.axes[k] = f
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}
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}
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return
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}
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func (self *face_panel) update_feature_in_setting(value string) error {
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fs, err := NewFontSpec(self.get())
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if err != nil {
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return err
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}
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pff, err := NewParsedFontFeature(value)
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func (self *face_panel) update_feature_in_setting(pff ParsedFontFeature) error {
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fs, err := NewFontSpec(self.get(), self.current_preview.Features)
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if err != nil {
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return err
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}
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@@ -419,7 +295,21 @@ func (self *face_panel) update_feature_in_setting(value string) error {
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}
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}
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if !found {
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fs.features = append(fs.features, pff)
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fs.features = append(fs.features, &pff)
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}
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self.set(fs.String())
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return nil
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}
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func (self *face_panel) remove_feature_in_setting(tag string) error {
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fs, err := NewFontSpec(self.get(), self.current_preview.Features)
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if err != nil {
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return err
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}
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if len(fs.features) > 0 {
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fs.features = slices.DeleteFunc(fs.features, func(x *ParsedFontFeature) bool {
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return x.tag == tag
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})
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}
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self.set(fs.String())
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return nil
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@@ -431,14 +321,16 @@ func (self *face_panel) handle_click_on_feature(feat_tag string) error {
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} else {
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for q, serialized := range self.current_preview.Applied_features {
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if q == feat_tag {
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if serialized != "" && (serialized[0] == '+' || strings.HasSuffix(serialized, "=1")) {
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return self.update_feature_in_setting("-" + feat_tag)
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} else {
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return self.update_feature_in_setting("+" + feat_tag)
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if serialized == "" {
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continue
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}
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if serialized[0] == '-' {
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return self.remove_feature_in_setting(feat_tag)
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}
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return self.update_feature_in_setting(ParsedFontFeature{tag: feat_tag, is_bool: true, val: 0})
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}
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}
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return self.update_feature_in_setting("+" + feat_tag)
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return self.update_feature_in_setting(ParsedFontFeature{tag: feat_tag, is_bool: true, val: 1})
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}
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return nil
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}
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@@ -3,7 +3,12 @@ package choose_fonts
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import (
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"fmt"
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"maps"
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"strconv"
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"strings"
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"sync"
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"kitty/tools/utils"
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"kitty/tools/utils/shlex"
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)
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var _ = fmt.Print
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@@ -196,3 +201,128 @@ func has_variable_data_for_font(font ListedFont) bool {
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_, found := _cached_vd(font.cache_key())
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return found
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}
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type ParsedFontFeature struct {
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tag string
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val uint
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is_bool bool
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}
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func (self ParsedFontFeature) String() string {
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if self.is_bool {
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return utils.IfElse(self.val == 0, "-", "+") + self.tag
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}
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return fmt.Sprintf("%s=%d", self.tag, self.val)
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}
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type settable_string struct {
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val string
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is_set bool
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}
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type FontSpec struct {
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family, style, postscript_name, full_name, system, variable_name settable_string
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axes map[string]float64
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features []*ParsedFontFeature
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}
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func (self FontSpec) String() string {
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if self.system.val != "" {
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return self.system.val
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}
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ans := strings.Builder{}
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a := func(k string, v settable_string) {
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if v.is_set {
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ans.WriteString(fmt.Sprintf(" %s=%s", k, shlex.Quote(v.val)))
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}
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}
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a(`family`, self.family)
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a(`style`, self.style)
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a(`postscript_name`, self.postscript_name)
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a(`full_name`, self.full_name)
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a(`variable_name`, self.variable_name)
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for name, val := range self.axes {
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a(name, settable_string{strconv.FormatFloat(val, 'f', -1, 64), true})
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}
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if len(self.features) > 0 {
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buf := strings.Builder{}
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for _, f := range self.features {
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buf.WriteString(f.String())
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buf.WriteString(" ")
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}
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a(`features`, settable_string{strings.TrimSpace(buf.String()), true})
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}
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return strings.TrimSpace(ans.String())
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}
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func NewParsedFontFeature(x string, features map[string]FeatureData) (ans ParsedFontFeature, err error) {
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if x != "" {
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if x[0] == '+' || x[0] == '-' {
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return ParsedFontFeature{x[1:], utils.IfElse(x[0] == '+', uint(1), uint(0)), true}, nil
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} else {
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tag, val, found := strings.Cut(x, "=")
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fd, defn_found := features[tag]
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if defn_found && !fd.Is_index {
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return ParsedFontFeature{tag, 1, true}, nil
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}
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pff := ParsedFontFeature{tag: tag}
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if found {
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v, err := strconv.ParseUint(val, 10, 0)
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if err != nil {
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return ans, err
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}
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pff.val = uint(v)
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}
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return pff, nil
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}
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}
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return
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}
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func NewFontSpec(spec string, features map[string]FeatureData) (ans FontSpec, err error) {
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if spec == "" || spec == "auto" {
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ans.system = settable_string{"auto", true}
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return
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}
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parts, err := shlex.Split(spec)
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if err != nil {
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return
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}
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if !strings.Contains(parts[0], "=") {
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ans.system = settable_string{spec, true}
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return
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}
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for _, item := range parts {
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k, v, found := strings.Cut(item, "=")
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if !found {
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return ans, fmt.Errorf(fmt.Sprintf("The font specification %s is invalid as %s does not contain an =", spec, item))
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}
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switch k {
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case "family":
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ans.family = settable_string{v, true}
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case "style":
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ans.style = settable_string{v, true}
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case "full_name":
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ans.full_name = settable_string{v, true}
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case "postscript_name":
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ans.postscript_name = settable_string{v, true}
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case "variable_name":
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ans.variable_name = settable_string{v, true}
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case "features":
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for _, x := range utils.NewSeparatorScanner(v, " ").Split(v) {
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pff, err := NewParsedFontFeature(x, features)
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if err != nil {
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return ans, err
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}
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ans.features = append(ans.features, &pff)
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}
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default:
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f, err := strconv.ParseFloat(v, 64)
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if err != nil {
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return ans, err
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}
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ans.axes[k] = f
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}
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}
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return
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}
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