Golang View.Buffer方法代码示例

func (t *tbfe) VisibleRegion(v *backend.View) Region {
	t.lock.Lock()
	r, ok := t.layout[v]
	t.lock.Unlock()
	if !ok || r.lastUpdate != v.Buffer().ChangeCount() {
		t.Show(v, r.visible)
		t.lock.Lock()
		r = t.layout[v]
		t.lock.Unlock()
	}
	return r.visible
}

func new_view(v *backend.View) {
	log4go.Debug("new_view entered")
	defer log4go.Debug("new_view exited")
	qw := wnds[v.Window()]
	w := newQLimeView(v)
	v.Settings().Set("syntax", "../../3rdparty/bundles/GoSublime/GoSublime.tmLanguage")

	w.SetSizev(600, 400)
	// w := qt5.NewWidget()
	sa := qt5.NewScrollArea()
	sa.SetWidget(w)
	qw.tw.AddTab(sa, v.Buffer().Name(), nil)
}

func (t *tbfe) FormatLine(v *backend.View, line int) string {
	buf := bytes.NewBuffer(nil)
	vr := v.Buffer().Line(v.Buffer().TextPoint(line, 0))
	log4go.Debug("FormatLine: %d, %s", line, vr)
	if vr.Size() == 0 {
		return ""
	}
	recipie := v.Transform(scheme, vr).Transcribe()
	highlight_line := false
	if b, ok := v.Settings().Get("highlight_line", highlight_line).(bool); ok {
		highlight_line = b
	}
	lastEnd := vr.Begin()
	for _, reg := range recipie {
		if lastEnd != reg.Region.Begin() {
			fmt.Fprintf(buf, "<span>%s</span>", v.Buffer().Substr(Region{lastEnd, reg.Region.Begin()}))
		}
		fmt.Fprintf(buf, "<span style=\"white-space:pre; color:#%s; background:#%s\">%s</span>", htmlcol(reg.Flavour.Foreground), htmlcol(reg.Flavour.Background), v.Buffer().Substr(reg.Region))
		lastEnd = reg.Region.End()
	}
	if lastEnd != vr.End() {
		io.WriteString(buf, v.Buffer().Substr(Region{lastEnd, vr.End()}))
	}
	return buf.String()
}

func (t *tbfe) clip(v *backend.View, s, e int) Region {
	p := util.Prof.Enter("clip")
	defer p.Exit()
	h := t.layout[v].height
	if e-s > h {
		e = s + h
	} else if e-s < h {
		s = e - h
	}
	if e2, _ := v.Buffer().RowCol(v.Buffer().TextPoint(e, 0)); e2 < e {
		e = e2
	}
	if s < 0 {
		s = 0
	}
	e = s + h
	r := Region{v.Buffer().TextPoint(s, 0), v.Buffer().TextPoint(e, 0)}
	return v.Buffer().LineR(r)
}

func (t tbfe) setupCallbacks(view *backend.View) {
	// Ensure that the visible region currently presented is
	// inclusive of the insert/erase delta.
	view.Buffer().AddCallback(func(b Buffer, pos, delta int) {
		visible := t.layout[view].visible
		t.Show(view, Region{visible.Begin(), visible.End() + delta})
	})

	backend.OnNew.Add(func(v *backend.View) {
		v.Settings().AddOnChange("lime.frontend.termbox.render", func(name string) { t.render() })
	})

	backend.OnModified.Add(func(v *backend.View) {
		t.render()
	})

	backend.OnSelectionModified.Add(func(v *backend.View) {
		t.render()
	})
}

func (t *tbfe) renderView(wr io.Writer, v *backend.View, lay layout) {
	p := util.Prof.Enter("render")
	defer p.Exit()

	vr := lay.visible
	runes := v.Buffer().Substr(vr)
	recipie := v.Transform(scheme, vr).Transcribe()
	highlight_line := false
	if b, ok := v.Settings().Get("highlight_line", highlight_line).(bool); ok {
		highlight_line = b
	}
	lastEnd := 0
	for _, reg := range recipie {
		if lastEnd != reg.Region.Begin() {
			io.WriteString(wr, runes[lastEnd:reg.Region.Begin()])
		}
		fmt.Fprintf(wr, "<span style=\"color:#%s; background-color:#%s\">%s</span>", htmlcol(reg.Flavour.Foreground), htmlcol(reg.Flavour.Background), runes[reg.Region.Begin():reg.Region.End()])
		lastEnd = reg.Region.End()
	}
	if lastEnd != vr.End() {
		io.WriteString(wr, v.Buffer().Substr(Region{lastEnd, vr.End()}))
	}
}

func (t *tbfe) Show(v *backend.View, r Region) {
	t.lock.Lock()
	l := t.layout[v]
	t.lock.Unlock()
	if l.visible.Covers(r) {
		return
	}
	p := util.Prof.Enter("show")
	defer p.Exit()

	lv := l.visible

	s1, _ := v.Buffer().RowCol(lv.Begin())
	e1, _ := v.Buffer().RowCol(lv.End())
	s2, _ := v.Buffer().RowCol(r.Begin())
	e2, _ := v.Buffer().RowCol(r.End())

	r1 := Region{s1, e1}
	r2 := Region{s2, e2}

	r3 := r1.Cover(r2)
	diff := 0
	if d1, d2 := Abs(r1.Begin()-r3.Begin()), Abs(r1.End()-r3.End()); d1 > d2 {
		diff = r3.Begin() - r1.Begin()
	} else {
		diff = r3.End() - r1.End()
	}
	r3.A = r1.Begin() + diff
	r3.B = r1.End() + diff

	r3 = t.clip(v, r3.A, r3.B)
	l.visible = r3
	t.lock.Lock()
	t.layout[v] = l
	t.lock.Unlock()
	t.render()
}

func (t *tbfe) renderView(sx, sy, w, h int, v *backend.View) {
	sel := v.Sel()
	substr := v.Buffer().Data()
	vr := t.VisibleRegion(v)
	lines := strings.Split(substr, "\n")
	s, _ := v.Buffer().RowCol(vr.Begin())
	e, _ := v.Buffer().RowCol(vr.End())
	if e > 1 {
		e = e - 1
		if e > h {
			s = e - h
		}
	}
	off := len(strings.Join(lines[:s], "\n"))
	lines = lines[s:e]
	runes := []rune(strings.Join(lines, "\n"))
	x, y := sx, sy
	ex, ey := sx+w, sy+h

	sub2 := ""
	var (
		lastScope string
		lfg, lbg  = defaultFg, defaultBg
	)

	tab_size, ok := v.Settings().Get("tab_size", 4).(int)
	if !ok {
		tab_size = 4
	}
	caret_style := termbox.AttrUnderline
	if b, ok := v.Settings().Get("caret_style", "underline").(string); ok {
		if b == "block" {
			caret_style = termbox.AttrReverse
		}
	}
	if b, ok := v.Settings().Get("inverse_caret_state", false).(bool); !b && ok {
		if caret_style == termbox.AttrReverse {
			caret_style = termbox.AttrUnderline
		} else {
			caret_style = termbox.AttrReverse
		}
	}
	caret_blink := true
	if b, ok := v.Settings().Get("caret_blink", true).(bool); ok {
		caret_blink = b
	}

	for i := range runes {
		sub2 += string(runes[i])

		if x < ex {
			o := off + len(sub2)
			r := primitives.Region{o, o}
			fg, bg := lfg, lbg
			scope := v.ScopeName(o)
			if scope != lastScope {
				fg, bg = defaultFg, defaultBg
				lastScope = scope
				na := scope
				for len(na) > 0 {
					sn := na
					i := strings.LastIndex(sn, " ")
					if i != -1 {
						sn = sn[i+1:]
					}
					if c, ok := schemelut[sn]; ok {
						fg, bg = c[0], c[1]
						break
					}
					if i2 := strings.LastIndex(na, "."); i2 == -1 {
						break
					} else if i > i2 {
						na = na[:i]
					} else {
						na = strings.TrimSpace(na[:i2])
					}
				}
				lfg, lbg = fg, bg
			} else {
				fg, bg = lfg, lbg
			}
			for _, r2 := range sel.Regions() {
				if r2.B == r.B {
					if !caret_blink || blink {
						if r2.Contains(o) {
							fg |= termbox.AttrReverse
						} else {
							fg |= caret_style
						}
					}
					break
				} else if r2.Contains(o) {
					fg |= termbox.AttrReverse
					break
				}
			}
			if runes[i] == '\t' {
				add := (x + 1 + (tab_size - 1)) &^ (tab_size - 1)

				for x < add {
//.........这里部分代码省略.........

func (t *tbfe) Show(v *backend.View, r primitives.Region) {
	t.visibleregion[v] = t.clip(v, primitives.Region{r.Begin(), v.Buffer().Size()})
}

func (t *tbfe) clip(v *backend.View, r primitives.Region) primitives.Region {
	s, _ := v.Buffer().RowCol(r.Begin())
	e, _ := v.Buffer().RowCol(r.End())

	_, h := termbox.Size()
	h -= console_height
	if e-s > h {
		e = s + h
	}
	if e2, _ := v.Buffer().RowCol(v.Buffer().TextPoint(e, 1)); e2 < e {
		e = e2
	}
	if e-s < h {
		s = e - h
	}
	if s < 1 {
		s = 1
	}
	r.A = v.Buffer().Line(v.Buffer().TextPoint(s, 1)).A
	r.B = v.Buffer().Line(v.Buffer().TextPoint(e, 1)).B
	return r
}

func (t *tbfe) renderView(v *backend.View, lay layout) {
	p := util.Prof.Enter("render")
	defer p.Exit()

	sx, sy, w, h := lay.x, lay.y, lay.width, lay.height
	sel := v.Sel()
	vr := lay.visible
	runes := v.Buffer().SubstrR(vr)
	x, y := sx, sy
	ex, ey := sx+w, sy+h

	var (
		lastScope string
		lfg, lbg  = defaultFg, defaultBg
	)

	tab_size, ok := v.Settings().Get("tab_size", 4).(int)
	if !ok {
		tab_size = 4
	}
	caret_style := termbox.AttrUnderline
	if b, ok := v.Settings().Get("caret_style", "underline").(string); ok {
		if b == "block" {
			caret_style = termbox.AttrReverse
		}
	}
	if b, ok := v.Settings().Get("inverse_caret_state", false).(bool); !b && ok {
		if caret_style == termbox.AttrReverse {
			caret_style = termbox.AttrUnderline
		} else {
			caret_style = termbox.AttrReverse
		}
	}
	caret_blink := true
	if b, ok := v.Settings().Get("caret_blink", true).(bool); ok {
		caret_blink = b
	}

	highlight_line := false
	if b, ok := v.Settings().Get("highlight_line", highlight_line).(bool); ok {
		highlight_line = b
	}

	// TODO: much of this belongs in backend as it's not specific to any particular frontend
	for i := range runes {
		o := vr.Begin() + i
		fg, bg := lfg, lbg
		scope := v.ScopeName(o)
		var lr Region
		if highlight_line {
			lr = v.Buffer().Line(o)
		}
		if scope != lastScope {
			fg, bg = defaultFg, defaultBg
			lastScope = scope
			na := scope
			for len(na) > 0 {
				sn := na
				i := strings.LastIndex(sn, " ")
				if i != -1 {
					sn = sn[i+1:]
				}
				if c, ok := schemelut[sn]; ok {
					fg, bg = c[0], c[1]
					break
				}
				if i2 := strings.LastIndex(na, "."); i2 == -1 {
					break
				} else if i > i2 {
					na = na[:i]
				} else {
					na = strings.TrimSpace(na[:i2])
				}
			}
			lfg, lbg = fg, bg
		} else {
			fg, bg = lfg, lbg
		}
		for _, r2 := range sel.Regions() {
			if highlight_line && (lr.Contains(r2.A) || lr.Contains(r2.B)) {
				// TODO: highlight color
				bg |= termbox.AttrReverse
				continue
			}
			if r2.Contains(o) {
				if r2.Size() == 0 {
					if !caret_blink || blink {
						fg |= caret_style
					}
					break
				} else if r2.Contains(o + 1) {
					// TODO: selection color
					fg |= termbox.AttrReverse
					break
				}
			}
		}
		if runes[i] == '\t' {
			add := (x + 1 + (tab_size - 1)) &^ (tab_size - 1)
			for x < add {
//.........这里部分代码省略.........

func TestSublime(t *testing.T) {
	ed := backend.GetEditor()
	ed.Console().Buffer().AddCallback(func(b primitives.Buffer, pos, delta int) {
		t.Logf("%s", b.Substr(primitives.Region{pos, pos + delta}))
	})
	w := ed.NewWindow()
	Init()
	l := py.NewLock()
	py.AddToPath("testdata")
	py.AddToPath("testdata/plugins")
	if m, err := py.Import("sublime_plugin"); err != nil {
		t.Fatal(err)
	} else {
		scanpath("testdata/", m)
	}

	subl, err := py.Import("sublime")
	if err != nil {
		t.Fatal(err)
	}

	if w, err := _windowClass.Alloc(1); err != nil {
		t.Fatal(err)
	} else {
		(w.(*Window)).data = &backend.Window{}
		subl.AddObject("test_window", w)
	}

	og, err := py.Import("objgraph")
	if err != nil {
		log4go.Debug(err)
		return
	}
	gr, err := og.Dict().GetItemString("show_growth")
	if err != nil {
		log4go.Debug(err)
		return
	}

	log4go.Debug("Before")
	gr.Base().CallFunctionObjArgs()

	if dir, err := os.Open("testdata"); err != nil {
		t.Error(err)
	} else if files, err := dir.Readdirnames(0); err != nil {
		t.Error(err)
	} else {
		for _, fn := range files {
			if filepath.Ext(fn) == ".py" {
				log4go.Debug("Running %s", fn)
				if _, err := py.Import(fn[:len(fn)-3]); err != nil {
					log4go.Error(err)
					t.Error(err)
				} else {
					log4go.Debug("Ran %s", fn)
				}
			}
		}
	}

	var f func(indent string, v py.Object, buf *bytes.Buffer)
	f = func(indent string, v py.Object, buf *bytes.Buffer) {
		b := v.Base()
		if dir, err := b.Dir(); err != nil {
			t.Error(err)
		} else {
			if l, ok := dir.(*py.List); ok {
				sl := l.Slice()

				if indent == "" {
					for _, v2 := range sl {
						if item, err := b.GetAttr(v2); err != nil {
							t.Error(err)
						} else {
							ty := item.Type()
							line := fmt.Sprintf("%s%s\n", indent, v2)
							buf.WriteString(line)
							if ty == py.TypeType {
								f(indent+"\t", item, buf)
							}
							item.Decref()
						}
					}
				} else {
					for _, v2 := range sl {
						buf.WriteString(fmt.Sprintf("%s%s\n", indent, v2))
					}
				}

			} else {
				ty := dir.Type()
				t.Error("Unexpected type:", ty)
			}
			dir.Decref()
		}
	}
	buf := bytes.NewBuffer(nil)
	f("", subl, buf)

	l.Unlock()
//.........这里部分代码省略.........

func (t *tbfe) renderView(v *backend.View, lay layout) {
	p := util.Prof.Enter("render")
	defer p.Exit()

	sx, sy, w, h := lay.x, lay.y, lay.width, lay.height
	vr := lay.visible
	runes := v.Buffer().Substr(vr)
	x, y := sx, sy
	ex, ey := sx+w, sy+h

	caretStyle := t.settings.caretStyle
	if t.settings.caretBlink && blink {
		t.settings.caretStyle = 0
	}

	recipie := v.Transform(scheme, vr).Transcribe()

	fg, bg := defaultFg, defaultBg
	sel := v.Sel()

	line, _ := v.Buffer().RowCol(vr.Begin())
	eofline, _ := v.Buffer().RowCol(v.Buffer().Size())
	lineNumberRenderSize := len(intToRunes(eofline))

	for i, r := range runes {
		o := vr.Begin() + i
		curr := 0
		fg, bg = defaultFg, defaultBg

		if t.settings.lineNumbers {
			renderLineNumber(&line, &x, y, lineNumberRenderSize, fg, bg)
		}

		for curr < len(recipie) && (o >= recipie[curr].Region.Begin()) {
			if o < recipie[curr].Region.End() {
				fg = palLut(textmate.Color(recipie[curr].Flavour.Foreground))
				bg = palLut(textmate.Color(recipie[curr].Flavour.Background))
			}
			curr++
		}
		if sel.Contains(Region{o, o}) {
			fg = fg | t.settings.caretStyle
		}
		if r == '\t' {
			add := (x + 1 + (t.settings.tabSize - 1)) &^ (t.settings.tabSize - 1)
			for x < add {
				if x < ex {
					termbox.SetCell(x, y, ' ', fg, bg)
				}
				fg = fg &^ termbox.AttrUnderline // Just looks weird with a long underline
				x++
			}
			continue
		} else if r == '\n' {
			x = sx
			y++
			if y > ey {
				break
			}
			continue
		}
		if x < ex {
			termbox.SetCell(x, y, r, fg, bg)
		}
		x++
	}

	if t.settings.lineNumbers {
		renderLineNumber(&line, &x, y, lineNumberRenderSize, fg, bg)
	}

	// restore original caretStyle before blink modification
	t.settings.caretStyle = caretStyle
}

func (t *tbfe) renderView(v *backend.View, lay layout) {
	p := util.Prof.Enter("render")
	defer p.Exit()

	sx, sy, w, h := lay.x, lay.y, lay.width, lay.height
	vr := lay.visible
	runes := v.Buffer().Substr(vr)
	x, y := sx, sy
	ex, ey := sx+w, sy+h

	tab_size, ok := v.Settings().Get("tab_size", 4).(int)
	if !ok {
		tab_size = 4
	}

	recipie := v.Transform(scheme, vr).Transcribe()
	highlight_line := false
	if b, ok := v.Settings().Get("highlight_line", highlight_line).(bool); ok {
		highlight_line = b
	}

	if first && len(recipie) > 4 {
		first = false
		for i, v := range recipie {
			log4go.Debug("%d: %+v", i, v)
		}
		log4go.Debug("vr: %+v", vr)
	}

	// TODO: much of this belongs in backend as it's not specific to any particular frontend
	curr := 0
	fg, bg := defaultFg, defaultBg
	_ = render.DRAW_TEXT
	for i, r := range runes {
		o := vr.Begin() + i
		curr = 0
		fg, bg = defaultFg, defaultBg
		for curr < len(recipie) && (o >= recipie[curr].Region.Begin()) {
			// if curr > 0 {
			// 	curr--
			// }
			if o < recipie[curr].Region.End() {
				fg = palLut(textmate.Color(recipie[curr].Flavour.Foreground))
				bg = palLut(textmate.Color(recipie[curr].Flavour.Background))
			}
			curr++
		}
		if r == '\t' {
			add := (x + 1 + (tab_size - 1)) &^ (tab_size - 1)
			for x < add {
				if x < ex {
					termbox.SetCell(x, y, ' ', fg, bg)
				}
				//				fg = fg &^ termbox.AttrUnderline // Just looks weird with a long underline
				x++
			}
			continue
		} else if r == '\n' {
			// for ; x < ex; x++ {
			// 	termbox.SetCell(x, y, ' ', fg, bg)
			// 	if !highlight_line {
			// 		break
			// 	}
			// }
			x = sx
			y++
			if y > ey {
				break
			}
			continue
		}
		if x < ex {
			termbox.SetCell(x, y, r, fg, bg)
		}
		x++
	}
}

func newQLimeView(v *backend.View) *QLimeView {
	log4go.Debug("new_QLimeView entered")
	defer log4go.Debug("new_QLimeView exited")
	var ret QLimeView
	ret.Widget = qt5.NewWidget()
	ret.v = v
	ret.Widget.OnPaintEvent(func(ev *qt5.PaintEvent) {
		p := qt5.NewPainter()
		defer p.Close()
		p.Begin(ret)
		b := v.Buffer()
		ps := p.Font().PointSize()

		pen := qt5.NewPen()
		p.SetPen(pen)
		brush := qt5.NewBrush()
		brush.SetStyle(qt5.SolidPattern)
		def := scheme.Settings[0]
		p.SetBrush(brush)
		f := p.Font()
		f.SetFixedPitch(true)
		p.SetFont(f)

		brush.SetColor(color.RGBA(def.Settings["background"]))
		p.DrawRect(ev.Rect())
		is_widget, ok := v.Settings().Get("is_widget", false).(bool)
		is_widget = ok && is_widget
		pen.SetColor(color.RGBA(def.Settings["background"]))
		p.SetPen(pen)

		for y := 0; y < 20; y++ {
			pos := b.TextPoint(y, 0)
			line := b.Line(pos)

			if is_widget {
				p.DrawText(qt5.Point{0, (y + 1) * (ps + 2)}, b.Substr(line))
			} else {
				for line.Contains(pos) {
					scope := primitives.Region{pos, pos}
					sn := v.ScopeName(pos)
					for line.Contains(pos) {
						pos++
						if v.ScopeName(pos) != sn {
							scope.B = pos
							break
						}
					}
					is := line.Intersection(scope)
					c := color.RGBA(def.Settings["foreground"])
					s := scheme.ClosestMatchingSetting(sn)
					if v, ok := s.Settings["foreground"]; ok {
						c = color.RGBA(v)
					}
					pen.SetColor(c)
					p.SetPen(pen)
					_, col := b.RowCol(line.A)
					p.DrawText(qt5.Point{col * ps / 2, (y + 1) * (ps + 2)}, b.Substr(is))
					line.A = is.End()
				}
			}
		}
	})
	ret.Widget.OnResizeEvent(func(ev *qt5.ResizeEvent) {
		if w, ok := v.Settings().Get("is_widget", false).(bool); ok && !w {
			ret.Widget.SetMinimumSize(qt5.Size{600, 100})
		}
	})
	v.Settings().Set("lime.qt.widget", &ret)
	return &ret
}