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Set foreground color without affecting background

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Close #712
pull/714/merge
Junegunn Choi 8 years ago
parent cfdb00b971
commit 0a8d2996dc
No known key found for this signature in database
GPG Key ID: 254BC280FEF9C627
6 changed files with 73 additions and 76 deletions
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117
src/curses/curses.go
Unescape Escape View File

@ -113,7 +113,8 @@ const (
// Pallete
const (
ColNormal = iota
_ = iota
ColNormal
ColPrompt
ColMatch
ColCurrent
@ -134,7 +135,6 @@ const (
)
type ColorTheme struct {
UseDefault bool
Fg int16
Bg int16
DarkBg int16
@ -168,7 +168,8 @@ type MouseEvent struct {
var (
_buf []byte
_in *os.File
_color func(int, Attr) C.int
_color bool
_colorFn func(int, Attr) C.int
_colorMap map[int]int
_prevDownTime time.Time
_clickY []int
@ -176,10 +177,6 @@ var (
Default16 *ColorTheme
Dark256 *ColorTheme
Light256 *ColorTheme
FG int
CurrentFG int
BG int
DarkBG int
)
type Window struct {
@ -192,12 +189,16 @@ type Window struct {
func NewWindow(top int, left int, width int, height int, border bool) *Window {
win := C.newwin(C.int(height), C.int(width), C.int(top), C.int(left))
if _color {
C.wbkgd(win, C.chtype(C.COLOR_PAIR(ColNormal)))
}
if border {
attr := _color(ColBorder, 0)
attr := _colorFn(ColBorder, 0)
C.wattron(win, attr)
C.box(win, 0, 0)
C.wattroff(win, attr)
}
return &Window{
win: win,
Top: top,
@ -209,7 +210,6 @@ func NewWindow(top int, left int, width int, height int, border bool) *Window {
func EmptyTheme() *ColorTheme {
return &ColorTheme{
UseDefault: true,
Fg: colUndefined,
Bg: colUndefined,
DarkBg: colUndefined,
@ -230,9 +230,8 @@ func init() {
_clickY = []int{}
_colorMap = make(map[int]int)
Default16 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
Fg: colDefault,
Bg: colDefault,
DarkBg: C.COLOR_BLACK,
Prompt: C.COLOR_BLUE,
Match: C.COLOR_GREEN,
@ -245,9 +244,8 @@ func init() {
Header: C.COLOR_CYAN,
Border: C.COLOR_BLACK}
Dark256 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
Fg: colDefault,
Bg: colDefault,
DarkBg: 236,
Prompt: 110,
Match: 108,
@ -260,9 +258,8 @@ func init() {
Header: 109,
Border: 59}
Light256 = &ColorTheme{
UseDefault: true,
Fg: 15,
Bg: 0,
Fg: colDefault,
Bg: colDefault,
DarkBg: 251,
Prompt: 25,
Match: 66,
@ -278,7 +275,7 @@ func init() {
func attrColored(pair int, a Attr) C.int {
var attr C.int
if pair > ColNormal {
if pair > 0 {
attr = C.COLOR_PAIR(C.int(pair))
}
return attr | C.int(a)
@ -344,7 +341,8 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
C.noecho()
C.raw() // stty dsusp undef
if theme != nil {
_color = theme != nil
if _color {
C.start_color()
var baseTheme *ColorTheme
if C.tigetnum(C.CString("colors")) >= 256 {
@ -353,52 +351,57 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
baseTheme = Default16
}
initPairs(baseTheme, theme, black)
_color = attrColored
C.bkgd(C.chtype(C.COLOR_PAIR(ColNormal)))
_colorFn = attrColored
} else {
_color = attrMono
_colorFn = attrMono
}
}
func override(a int16, b int16) C.short {
if b == colUndefined {
return C.short(a)
func override(baseTheme *ColorTheme, theme *ColorTheme) {
o := func(a int16, b int16) int16 {
if b == colUndefined {
return a
}
return b
}
return C.short(b)
theme.Fg = o(baseTheme.Fg, theme.Fg)
theme.Bg = o(baseTheme.Bg, theme.Bg)
theme.DarkBg = o(baseTheme.DarkBg, theme.DarkBg)
theme.Prompt = o(baseTheme.Prompt, theme.Prompt)
theme.Match = o(baseTheme.Match, theme.Match)
theme.Current = o(baseTheme.Current, theme.Current)
theme.CurrentMatch = o(baseTheme.CurrentMatch, theme.CurrentMatch)
theme.Spinner = o(baseTheme.Spinner, theme.Spinner)
theme.Info = o(baseTheme.Info, theme.Info)
theme.Cursor = o(baseTheme.Cursor, theme.Cursor)
theme.Selected = o(baseTheme.Selected, theme.Selected)
theme.Header = o(baseTheme.Header, theme.Header)
theme.Border = o(baseTheme.Border, theme.Border)
}
func initPairs(baseTheme *ColorTheme, theme *ColorTheme, black bool) {
fg := override(baseTheme.Fg, theme.Fg)
bg := override(baseTheme.Bg, theme.Bg)
if black {
bg = C.COLOR_BLACK
} else if theme.UseDefault {
fg = colDefault
bg = colDefault
C.use_default_colors()
}
if theme.UseDefault {
FG = colDefault
BG = colDefault
} else {
FG = int(fg)
BG = int(bg)
C.assume_default_colors(C.int(override(baseTheme.Fg, theme.Fg)), C.int(bg))
theme.Bg = C.COLOR_BLACK
}
// Updates theme
override(baseTheme, theme)
currentFG := override(baseTheme.Current, theme.Current)
darkBG := override(baseTheme.DarkBg, theme.DarkBg)
CurrentFG = int(currentFG)
DarkBG = int(darkBG)
C.init_pair(ColPrompt, override(baseTheme.Prompt, theme.Prompt), bg)
C.init_pair(ColMatch, override(baseTheme.Match, theme.Match), bg)
C.init_pair(ColCurrent, currentFG, darkBG)
C.init_pair(ColCurrentMatch, override(baseTheme.CurrentMatch, theme.CurrentMatch), darkBG)
C.init_pair(ColSpinner, override(baseTheme.Spinner, theme.Spinner), bg)
C.init_pair(ColInfo, override(baseTheme.Info, theme.Info), bg)
C.init_pair(ColCursor, override(baseTheme.Cursor, theme.Cursor), darkBG)
C.init_pair(ColSelected, override(baseTheme.Selected, theme.Selected), darkBG)
C.init_pair(ColHeader, override(baseTheme.Header, theme.Header), bg)
C.init_pair(ColBorder, override(baseTheme.Border, theme.Border), bg)
C.assume_default_colors(C.int(theme.Fg), C.int(theme.Bg))
initPair := func(group C.short, fg int16, bg int16) {
C.init_pair(group, C.short(fg), C.short(bg))
}
initPair(ColNormal, theme.Fg, theme.Bg)
initPair(ColPrompt, theme.Prompt, theme.Bg)
initPair(ColMatch, theme.Match, theme.Bg)
initPair(ColCurrent, theme.Current, theme.DarkBg)
initPair(ColCurrentMatch, theme.CurrentMatch, theme.DarkBg)
initPair(ColSpinner, theme.Spinner, theme.Bg)
initPair(ColInfo, theme.Info, theme.Bg)
initPair(ColCursor, theme.Cursor, theme.DarkBg)
initPair(ColSelected, theme.Selected, theme.DarkBg)
initPair(ColHeader, theme.Header, theme.Bg)
initPair(ColBorder, theme.Border, theme.Bg)
}
func Close() {
@ -656,7 +659,7 @@ func (w *Window) Print(text string) {
}
func (w *Window) CPrint(pair int, a Attr, text string) {
attr := _color(pair, a)
attr := _colorFn(pair, a)
C.wattron(w.win, attr)
w.Print(text)
C.wattroff(w.win, attr)
@ -683,7 +686,7 @@ func (w *Window) Fill(str string) bool {
}
func (w *Window) CFill(str string, fg int, bg int, a Attr) bool {
attr := _color(PairFor(fg, bg), a)
attr := _colorFn(PairFor(fg, bg), a)
C.wattron(w.win, attr)
ret := w.Fill(str)
C.wattroff(w.win, attr)

2
src/options.go
Unescape Escape View File

@ -499,10 +499,8 @@ func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme
switch pair[0] {
case "fg":
theme.Fg = ansi
theme.UseDefault = theme.UseDefault && ansi < 0
case "bg":
theme.Bg = ansi
theme.UseDefault = theme.UseDefault && ansi < 0
case "fg+":
theme.Current = ansi
case "bg+":

10
src/options_test.go
Unescape Escape View File

@ -299,20 +299,14 @@ func TestColorSpec(t *testing.T) {
}
customized.Fg = curses.Dark256.Fg
customized.Bg = curses.Dark256.Bg
if *curses.Dark256 == *customized {
t.Errorf("colors should now be equivalent")
if *curses.Dark256 != *customized {
t.Errorf("colors should now be equivalent: %v, %v", curses.Dark256, customized)
}
customized = parseTheme(theme, "fg:231,dark,bg:232")
if customized.Fg != curses.Dark256.Fg || customized.Bg == curses.Dark256.Bg {
t.Errorf("color not customized")
}
if customized.UseDefault {
t.Errorf("not using default colors")
}
if !curses.Dark256.UseDefault {
t.Errorf("using default colors")
}
}
func TestParseNilTheme(t *testing.T) {

12
src/result.go
Unescape Escape View File

@ -92,13 +92,13 @@ func minRank() rank {
return rank{index: 0, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
}
func (result *Result) colorOffsets(matchOffsets []Offset, color int, attr curses.Attr, current bool) []colorOffset {
func (result *Result) colorOffsets(matchOffsets []Offset, theme *curses.ColorTheme, color int, attr curses.Attr, current bool) []colorOffset {
itemColors := result.item.Colors()
// No ANSI code, or --color=no
if len(itemColors) == 0 {
var offsets []colorOffset
for _, off := range matchOffsets {
offsets = append(offsets, colorOffset{offset: [2]int32{off[0], off[1]}, color: color, attr: attr})
}
return offsets
@ -149,17 +149,17 @@ func (result *Result) colorOffsets(matchOffsets []Offset, color int, attr curses
fg := ansi.color.fg
if fg == -1 {
if current {
fg = curses.CurrentFG
fg = int(theme.Current)
} else {
fg = curses.FG
fg = int(theme.Fg)
}
}
bg := ansi.color.bg
if bg == -1 {
if current {
bg = curses.DarkBG
bg = int(theme.DarkBg)
} else {
bg = curses.BG
bg = int(theme.Bg)
}
}
colors = append(colors, colorOffset{

2
src/result_test.go
Unescape Escape View File

@ -103,7 +103,7 @@ func TestColorOffset(t *testing.T) {
ansiOffset{[2]int32{33, 40}, ansiState{4, 8, curses.Bold}}}}}
// [{[0 5] 9 false} {[5 15] 99 false} {[15 20] 9 false} {[22 25] 10 true} {[25 35] 99 false} {[35 40] 11 true}]
colors := item.colorOffsets(offsets, 99, 0, true)
colors := item.colorOffsets(offsets, curses.Dark256, 99, 0, true)
assert := func(idx int, b int32, e int32, c int, bold bool) {
var attr curses.Attr
if bold {

6
src/terminal.go
Unescape Escape View File

@ -90,6 +90,7 @@ type Terminal struct {
suppress bool
startChan chan bool
slab *util.Slab
theme *C.ColorTheme
}
type selectedItem struct {
@ -295,6 +296,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
mutex: sync.Mutex{},
suppress: true,
slab: util.MakeSlab(slab16Size, slab32Size),
theme: opts.Theme,
startChan: make(chan bool, 1),
initFunc: func() {
C.Init(opts.Theme, opts.Black, opts.Mouse)
@ -637,7 +639,7 @@ func (t *Terminal) printItem(result *Result, i int, current bool) {
} else {
t.window.Print(" ")
}
t.printHighlighted(result, 0, 0, C.ColMatch, false)
t.printHighlighted(result, 0, C.ColNormal, C.ColMatch, false)
}
}
@ -718,7 +720,7 @@ func (t *Terminal) printHighlighted(result *Result, attr C.Attr, col1 int, col2
maxe = util.Max(maxe, int(offset[1]))
}
offsets := result.colorOffsets(charOffsets, col2, attr, current)
offsets := result.colorOffsets(charOffsets, t.theme, col2, attr, current)
maxWidth := t.window.Width - 3
maxe = util.Constrain(maxe+util.Min(maxWidth/2-2, t.hscrollOff), 0, len(text))
if overflow(text, maxWidth) {

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