package main
import (
- "os"
+ "fmt"
+ "reflect"
+ "strconv"
"strings"
"time"
- "github.com/mitchellh/go-homedir"
"github.com/zyedidia/tcell"
)
+// The ViewType defines what kind of view this is
type ViewType struct {
- readonly bool // The file cannot be edited
- scratch bool // The file cannot be saved
+ Kind int
+ Readonly bool // The file cannot be edited
+ Scratch bool // The file cannot be saved
}
var (
- vtDefault = ViewType{false, false}
- vtHelp = ViewType{true, true}
- vtLog = ViewType{true, true}
- vtScratch = ViewType{false, true}
+ vtDefault = ViewType{0, false, false}
+ vtHelp = ViewType{1, true, true}
+ vtLog = ViewType{2, true, true}
+ vtScratch = ViewType{3, false, true}
+ vtRaw = ViewType{4, true, true}
+ vtTerm = ViewType{5, true, true}
)
// The View struct stores information about a view into a buffer.
// The buffer
Buf *Buffer
// The statusline
- sline Statusline
+ sline *Statusline
// Since tcell doesn't differentiate between a mouse release event
// and a mouse move event with no keys pressed, we need to keep
// mouse release events
mouseReleased bool
+ // We need to keep track of insert key press toggle
+ isOverwriteMode bool
// This stores when the last click was
// This is useful for detecting double and triple clicks
lastClickTime time.Time
+ lastLoc Loc
// lastCutTime stores when the last ctrl+k was issued.
// It is used for clearing the clipboard to replace it with fresh cut lines.
// Same here, just to keep track for mouse move events
tripleClick bool
+ // The cellview used for displaying and syntax highlighting
cellview *CellView
splitNode *LeafNode
+
+ // The scrollbar
+ scrollbar *ScrollBar
+
+ // Virtual terminal
+ term *Terminal
}
// NewView returns a new fullscreen view
v.messages = make(map[string][]GutterMessage)
- v.sline = Statusline{
+ v.sline = &Statusline{
+ view: v,
+ }
+
+ v.scrollbar = &ScrollBar{
view: v,
}
v.Height--
}
+ v.term = new(Terminal)
+
for pl := range loadedPlugins {
_, err := Call(pl+".onViewOpen", v)
if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
}
}
+// StartTerminal execs a command in this view
+func (v *View) StartTerminal(execCmd []string, wait bool, getOutput bool, luaCallback string) error {
+ err := v.term.Start(execCmd, v, getOutput)
+ v.term.wait = wait
+ v.term.callback = luaCallback
+ if err == nil {
+ v.term.Resize(v.Width, v.Height)
+ v.Type = vtTerm
+ }
+ return err
+}
+
+// CloseTerminal shuts down the tty running in this view
+// and returns it to the default view type
+func (v *View) CloseTerminal() {
+ v.term.Stop()
+}
+
// ToggleTabbar creates an extra row for the tabbar if necessary
func (v *View) ToggleTabbar() {
if len(tabs) > 1 {
}
func (v *View) paste(clip string) {
- leadingWS := GetLeadingWhitespace(v.Buf.Line(v.Cursor.Y))
+ leadingWS := ""
+ if v.Cursor.X > 0 {
+ leadingWS = GetLeadingWhitespace(v.Buf.Line(v.Cursor.Y))
+ }
if v.Cursor.HasSelection() {
v.Cursor.DeleteSelection()
}
clip = strings.Replace(clip, "\n", "\n"+leadingWS, -1)
v.Buf.Insert(v.Cursor.Loc, clip)
- v.Cursor.Loc = v.Cursor.Loc.Move(Count(clip), v.Buf)
+ // v.Cursor.Loc = v.Cursor.Loc.Move(Count(clip), v.Buf)
v.freshClip = false
messenger.Message("Pasted clipboard")
}
// ScrollDown scrolls the view down n lines (if possible)
func (v *View) ScrollDown(n int) {
// Try to scroll by n but if it would overflow, scroll by 1
- if v.Topline+n <= v.Buf.NumLines-v.Height {
+ if v.Topline+n <= v.Buf.NumLines {
v.Topline += n
- } else if v.Topline < v.Buf.NumLines-v.Height {
+ } else if v.Topline < v.Buf.NumLines-1 {
v.Topline++
}
}
// If there are unsaved changes, the user will be asked if the view can be closed
// causing them to lose the unsaved changes
func (v *View) CanClose() bool {
- if v.Type == vtDefault && v.Buf.IsModified {
- var char rune
+ if v.Type == vtDefault && v.Buf.Modified() {
+ var choice bool
var canceled bool
if v.Buf.Settings["autosave"].(bool) {
- char = 'y'
+ choice = true
} else {
- char, canceled = messenger.LetterPrompt("Save changes to "+v.Buf.GetName()+" before closing? (y,n,esc) ", 'y', 'n')
+ choice, canceled = messenger.YesNoPrompt("Save changes to " + v.Buf.GetName() + " before closing? (y,n,esc) ")
}
if !canceled {
- if char == 'y' {
+ //if char == 'y' {
+ if choice {
v.Save(true)
- return true
- } else if char == 'n' {
- return true
}
+ } else {
+ return false
}
- } else {
- return true
}
- return false
+ return true
}
// OpenBuffer opens a new buffer in this view.
// Set mouseReleased to true because we assume the mouse is not being pressed when
// the editor is opened
v.mouseReleased = true
+ // Set isOverwriteMode to false, because we assume we are in the default mode when editor
+ // is opened
+ v.isOverwriteMode = false
v.lastClickTime = time.Time{}
+
+ GlobalPluginCall("onBufferOpen", v.Buf)
+ GlobalPluginCall("onViewOpen", v)
}
// Open opens the given file in the view
-func (v *View) Open(filename string) {
- home, _ := homedir.Dir()
- filename = strings.Replace(filename, "~", home, 1)
- file, err := os.Open(filename)
- defer file.Close()
-
- var buf *Buffer
+func (v *View) Open(path string) {
+ buf, err := NewBufferFromFile(path)
if err != nil {
- messenger.Message(err.Error())
- // File does not exist -- create an empty buffer with that name
- buf = NewBuffer(strings.NewReader(""), filename)
- } else {
- buf = NewBuffer(file, filename)
+ messenger.Error(err)
+ return
}
v.OpenBuffer(buf)
}
// HSplit opens a horizontal split with the given buffer
func (v *View) HSplit(buf *Buffer) {
i := 0
- if v.Buf.Settings["splitBottom"].(bool) {
+ if v.Buf.Settings["splitbottom"].(bool) {
i = 1
}
v.splitNode.HSplit(buf, v.Num+i)
// VSplit opens a vertical split with the given buffer
func (v *View) VSplit(buf *Buffer) {
i := 0
- if v.Buf.Settings["splitRight"].(bool) {
+ if v.Buf.Settings["splitright"].(bool) {
i = 1
}
v.splitNode.VSplit(buf, v.Num+i)
return 0, 0
}
+// Bottomline returns the line number of the lowest line in the view
+// You might think that this is obviously just v.Topline + v.Height
+// but if softwrap is enabled things get complicated since one buffer
+// line can take up multiple lines in the view
func (v *View) Bottomline() int {
if !v.Buf.Settings["softwrap"].(bool) {
return v.Topline + v.Height
if cy > v.Topline+height-1-scrollmargin && cy < v.Buf.NumLines-scrollmargin {
v.Topline = cy - height + 1 + scrollmargin
ret = true
- } else if cy >= v.Buf.NumLines-scrollmargin && cy > height {
+ } else if cy >= v.Buf.NumLines-scrollmargin && cy >= height {
v.Topline = v.Buf.NumLines - height
ret = true
}
return ret
}
+// GetMouseClickLocation gets the location in the buffer from a mouse click
+// on the screen
+func (v *View) GetMouseClickLocation(x, y int) (int, int) {
+ x -= v.lineNumOffset - v.leftCol + v.x
+ y += v.Topline - v.y
+
+ if y-v.Topline > v.Height-1 {
+ v.ScrollDown(1)
+ y = v.Height + v.Topline - 1
+ }
+ if y < 0 {
+ y = 0
+ }
+ if x < 0 {
+ x = 0
+ }
+
+ newX, newY := v.GetSoftWrapLocation(x, y)
+ if newX > Count(v.Buf.Line(newY)) {
+ newX = Count(v.Buf.Line(newY))
+ }
+
+ return newX, newY
+}
+
// MoveToMouseClick moves the cursor to location x, y assuming x, y were given
// by a mouse click
func (v *View) MoveToMouseClick(x, y int) {
}
x, y = v.GetSoftWrapLocation(x, y)
- // x = v.Cursor.GetCharPosInLine(y, x)
if x > Count(v.Buf.Line(y)) {
x = Count(v.Buf.Line(y))
}
v.Cursor.LastVisualX = v.Cursor.GetVisualX()
}
+// Execute actions executes the supplied actions
+func (v *View) ExecuteActions(actions []func(*View, bool) bool) bool {
+ relocate := false
+ readonlyBindingsList := []string{"Delete", "Insert", "Backspace", "Cut", "Play", "Paste", "Move", "Add", "DuplicateLine", "Macro"}
+ for _, action := range actions {
+ readonlyBindingsResult := false
+ funcName := ShortFuncName(action)
+ curv := CurView()
+ if curv.Type.Readonly == true {
+ // check for readonly and if true only let key bindings get called if they do not change the contents.
+ for _, readonlyBindings := range readonlyBindingsList {
+ if strings.Contains(funcName, readonlyBindings) {
+ readonlyBindingsResult = true
+ }
+ }
+ }
+ if !readonlyBindingsResult {
+ // call the key binding
+ relocate = action(curv, true) || relocate
+ // Macro
+ if funcName != "ToggleMacro" && funcName != "PlayMacro" {
+ if recordingMacro {
+ curMacro = append(curMacro, action)
+ }
+ }
+ }
+ }
+
+ return relocate
+}
+
+// SetCursor sets the view's and buffer's cursor
+func (v *View) SetCursor(c *Cursor) bool {
+ if c == nil {
+ return false
+ }
+ v.Cursor = c
+ v.Buf.curCursor = c.Num
+
+ return true
+}
+
// HandleEvent handles an event passed by the main loop
func (v *View) HandleEvent(event tcell.Event) {
+ if v.Type == vtTerm {
+ v.term.HandleEvent(event)
+ return
+ }
+
+ if v.Type == vtRaw {
+ v.Buf.Insert(v.Cursor.Loc, reflect.TypeOf(event).String()[7:])
+ v.Buf.Insert(v.Cursor.Loc, fmt.Sprintf(": %q\n", event.EscSeq()))
+
+ switch e := event.(type) {
+ case *tcell.EventKey:
+ if e.Key() == tcell.KeyCtrlQ {
+ v.Quit(true)
+ }
+ }
+
+ return
+ }
+
// This bool determines whether the view is relocated at the end of the function
// By default it's true because most events should cause a relocate
relocate := true
v.Buf.CheckModTime()
switch e := event.(type) {
+ case *tcell.EventRaw:
+ for key, actions := range bindings {
+ if key.keyCode == -1 {
+ if e.EscSeq() == key.escape {
+ for _, c := range v.Buf.cursors {
+ ok := v.SetCursor(c)
+ if !ok {
+ break
+ }
+ relocate = false
+ relocate = v.ExecuteActions(actions) || relocate
+ }
+ v.SetCursor(&v.Buf.Cursor)
+ v.Buf.MergeCursors()
+ break
+ }
+ }
+ }
case *tcell.EventKey:
// Check first if input is a key binding, if it is we 'eat' the input and don't insert a rune
isBinding := false
- if e.Key() != tcell.KeyRune || e.Modifiers() != 0 {
- for key, actions := range bindings {
- if e.Key() == key.keyCode {
- if e.Key() == tcell.KeyRune {
- if e.Rune() != key.r {
- continue
- }
+ for key, actions := range bindings {
+ if e.Key() == key.keyCode {
+ if e.Key() == tcell.KeyRune {
+ if e.Rune() != key.r {
+ continue
}
- if e.Modifiers() == key.modifiers {
+ }
+ if e.Modifiers() == key.modifiers {
+ for _, c := range v.Buf.cursors {
+ ok := v.SetCursor(c)
+ if !ok {
+ break
+ }
relocate = false
isBinding = true
- for _, action := range actions {
- relocate = action(v, true) || relocate
- funcName := FuncName(action)
- if funcName != "main.(*View).ToggleMacro" && funcName != "main.(*View).PlayMacro" {
- if recordingMacro {
- curMacro = append(curMacro, action)
- }
- }
- }
- break
+ relocate = v.ExecuteActions(actions) || relocate
}
+ v.SetCursor(&v.Buf.Cursor)
+ v.Buf.MergeCursors()
+ break
}
}
}
+
if !isBinding && e.Key() == tcell.KeyRune {
- // Insert a character
- if v.Cursor.HasSelection() {
- v.Cursor.DeleteSelection()
- v.Cursor.ResetSelection()
- }
- v.Buf.Insert(v.Cursor.Loc, string(e.Rune()))
- v.Cursor.Right()
+ // Check viewtype if readonly don't insert a rune (readonly help and log view etc.)
+ if v.Type.Readonly == false {
+ for _, c := range v.Buf.cursors {
+ v.SetCursor(c)
+
+ // Insert a character
+ if v.Cursor.HasSelection() {
+ v.Cursor.DeleteSelection()
+ v.Cursor.ResetSelection()
+ }
- for pl := range loadedPlugins {
- _, err := Call(pl+".onRune", string(e.Rune()), v)
- if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
- TermMessage(err)
- }
- }
+ if v.isOverwriteMode {
+ next := v.Cursor.Loc
+ next.X++
+ v.Buf.Replace(v.Cursor.Loc, next, string(e.Rune()))
+ } else {
+ v.Buf.Insert(v.Cursor.Loc, string(e.Rune()))
+ }
- if recordingMacro {
- curMacro = append(curMacro, e.Rune())
+ for pl := range loadedPlugins {
+ _, err := Call(pl+".onRune", string(e.Rune()), v)
+ if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
+ TermMessage(err)
+ }
+ }
+
+ if recordingMacro {
+ curMacro = append(curMacro, e.Rune())
+ }
+ }
+ v.SetCursor(&v.Buf.Cursor)
}
}
case *tcell.EventPaste:
- if !PreActionCall("Paste", v) {
- break
- }
+ // Check viewtype if readonly don't paste (readonly help and log view etc.)
+ if v.Type.Readonly == false {
+ if !PreActionCall("Paste", v) {
+ break
+ }
- v.paste(e.Text())
+ for _, c := range v.Buf.cursors {
+ v.SetCursor(c)
+ v.paste(e.Text())
+ }
+ v.SetCursor(&v.Buf.Cursor)
- PostActionCall("Paste", v)
+ PostActionCall("Paste", v)
+ }
case *tcell.EventMouse:
- x, y := e.Position()
- x -= v.lineNumOffset - v.leftCol + v.x
- y += v.Topline - v.y
// Don't relocate for mouse events
relocate = false
button := e.Buttons()
- switch button {
- case tcell.Button1:
- // Left click
- if v.mouseReleased {
- v.MoveToMouseClick(x, y)
- if time.Since(v.lastClickTime)/time.Millisecond < doubleClickThreshold {
- if v.doubleClick {
- // Triple click
- v.lastClickTime = time.Now()
-
- v.tripleClick = true
- v.doubleClick = false
-
- v.Cursor.SelectLine()
- v.Cursor.CopySelection("primary")
- } else {
- // Double click
- v.lastClickTime = time.Now()
-
- v.doubleClick = true
- v.tripleClick = false
-
- v.Cursor.SelectWord()
- v.Cursor.CopySelection("primary")
+ for key, actions := range bindings {
+ if button == key.buttons && e.Modifiers() == key.modifiers {
+ for _, c := range v.Buf.cursors {
+ ok := v.SetCursor(c)
+ if !ok {
+ break
}
- } else {
- v.doubleClick = false
- v.tripleClick = false
- v.lastClickTime = time.Now()
-
- v.Cursor.OrigSelection[0] = v.Cursor.Loc
- v.Cursor.CurSelection[0] = v.Cursor.Loc
- v.Cursor.CurSelection[1] = v.Cursor.Loc
+ relocate = v.ExecuteActions(actions) || relocate
}
- v.mouseReleased = false
- } else if !v.mouseReleased {
- v.MoveToMouseClick(x, y)
- if v.tripleClick {
- v.Cursor.AddLineToSelection()
- } else if v.doubleClick {
- v.Cursor.AddWordToSelection()
- } else {
- v.Cursor.SetSelectionEnd(v.Cursor.Loc)
- v.Cursor.CopySelection("primary")
+ v.SetCursor(&v.Buf.Cursor)
+ v.Buf.MergeCursors()
+ }
+ }
+
+ for key, actions := range mouseBindings {
+ if button == key.buttons && e.Modifiers() == key.modifiers {
+ for _, action := range actions {
+ action(v, true, e)
}
}
- case tcell.Button2:
- // Middle mouse button was clicked,
- // We should paste primary
- v.PastePrimary(true)
+ }
+
+ switch button {
case tcell.ButtonNone:
// Mouse event with no click
if !v.mouseReleased {
// Mouse was just released
+ x, y := e.Position()
+ x -= v.lineNumOffset - v.leftCol + v.x
+ y += v.Topline - v.y
+
// Relocating here isn't really necessary because the cursor will
// be in the right place from the last mouse event
// However, if we are running in a terminal that doesn't support mouse motion
}
v.mouseReleased = true
}
- case tcell.WheelUp:
- // Scroll up
- scrollspeed := int(v.Buf.Settings["scrollspeed"].(float64))
- v.ScrollUp(scrollspeed)
- case tcell.WheelDown:
- // Scroll down
- scrollspeed := int(v.Buf.Settings["scrollspeed"].(float64))
- v.ScrollDown(scrollspeed)
}
}
if relocate {
v.Relocate()
+ // We run relocate again because there's a bug with relocating with softwrap
+ // when for example you jump to the bottom of the buffer and it tries to
+ // calculate where to put the topline so that the bottom line is at the bottom
+ // of the terminal and it runs into problems with visual lines vs real lines.
+ // This is (hopefully) a temporary solution
+ v.Relocate()
}
}
+func (v *View) mainCursor() bool {
+ return v.Buf.curCursor == len(v.Buf.cursors)-1
+}
+
// GutterMessage creates a message in this view's gutter
func (v *View) GutterMessage(section string, lineN int, msg string, kind int) {
lineN--
if data, err := FindRuntimeFile(RTHelp, helpPage).Data(); err != nil {
TermMessage("Unable to load help text", helpPage, "\n", err)
} else {
- helpBuffer := NewBuffer(strings.NewReader(string(data)), helpPage+".md")
+ helpBuffer := NewBufferFromString(string(data), helpPage+".md")
helpBuffer.name = "Help"
if v.Type == vtHelp {
}
}
-func (v *View) drawCell(x, y int, ch rune, combc []rune, style tcell.Style) {
- if x >= v.x && x < v.x+v.Width && y >= v.y && y < v.y+v.Height {
- screen.SetContent(x, y, ch, combc, style)
- }
-}
-
-// DisplayView renders the view to the screen
-// func (v *View) DisplayView() {
-// if v.Type == vtLog {
-// // Log views should always follow the cursor...
-// v.Relocate()
-// }
-//
-// if v.Buf.Settings["syntax"].(bool) {
-// v.matches = Match(v)
-// }
-//
-// // The charNum we are currently displaying
-// // starts at the start of the viewport
-// charNum := Loc{0, v.Topline}
-//
-// // Convert the length of buffer to a string, and get the length of the string
-// // We are going to have to offset by that amount
-// maxLineLength := len(strconv.Itoa(v.Buf.NumLines))
-//
-// if v.Buf.Settings["ruler"] == true {
-// // + 1 for the little space after the line number
-// v.lineNumOffset = maxLineLength + 1
-// } else {
-// v.lineNumOffset = 0
-// }
-//
-// // We need to add to the line offset if there are gutter messages
-// var hasGutterMessages bool
-// for _, v := range v.messages {
-// if len(v) > 0 {
-// hasGutterMessages = true
-// }
-// }
-// if hasGutterMessages {
-// v.lineNumOffset += 2
-// }
-//
-// if v.x != 0 {
-// // One space for the extra split divider
-// v.lineNumOffset++
-// }
-//
-// // These represent the current screen coordinates
-// screenX, screenY := v.x, v.y-1
-//
-// highlightStyle := defStyle
-// curLineN := 0
-//
-// // ViewLine is the current line from the top of the viewport
-// for viewLine := 0; viewLine < v.Height; viewLine++ {
-// screenY++
-// screenX = v.x
-//
-// // This is the current line number of the buffer that we are drawing
-// curLineN = viewLine + v.Topline
-//
-// if screenY-v.y >= v.Height {
-// break
-// }
-//
-// if v.x != 0 {
-// // Draw the split divider
-// v.drawCell(screenX, screenY, '|', nil, defStyle.Reverse(true))
-// screenX++
-// }
-//
-// // If the buffer is smaller than the view height we have to clear all this space
-// if curLineN >= v.Buf.NumLines {
-// for i := screenX; i < v.x+v.Width; i++ {
-// v.drawCell(i, screenY, ' ', nil, defStyle)
-// }
-//
-// continue
-// }
-// line := v.Buf.Line(curLineN)
-//
-// // If there are gutter messages we need to display the '>>' symbol here
-// if hasGutterMessages {
-// // msgOnLine stores whether or not there is a gutter message on this line in particular
-// msgOnLine := false
-// for k := range v.messages {
-// for _, msg := range v.messages[k] {
-// if msg.lineNum == curLineN {
-// msgOnLine = true
-// gutterStyle := defStyle
-// switch msg.kind {
-// case GutterInfo:
-// if style, ok := colorscheme["gutter-info"]; ok {
-// gutterStyle = style
-// }
-// case GutterWarning:
-// if style, ok := colorscheme["gutter-warning"]; ok {
-// gutterStyle = style
-// }
-// case GutterError:
-// if style, ok := colorscheme["gutter-error"]; ok {
-// gutterStyle = style
-// }
-// }
-// v.drawCell(screenX, screenY, '>', nil, gutterStyle)
-// screenX++
-// v.drawCell(screenX, screenY, '>', nil, gutterStyle)
-// screenX++
-// if v.Cursor.Y == curLineN && !messenger.hasPrompt {
-// messenger.Message(msg.msg)
-// messenger.gutterMessage = true
-// }
-// }
-// }
-// }
-// // If there is no message on this line we just display an empty offset
-// if !msgOnLine {
-// v.drawCell(screenX, screenY, ' ', nil, defStyle)
-// screenX++
-// v.drawCell(screenX, screenY, ' ', nil, defStyle)
-// screenX++
-// if v.Cursor.Y == curLineN && messenger.gutterMessage {
-// messenger.Reset()
-// messenger.gutterMessage = false
-// }
-// }
-// }
-//
-// lineNumStyle := defStyle
-// if v.Buf.Settings["ruler"] == true {
-// // Write the line number
-// if style, ok := colorscheme["line-number"]; ok {
-// lineNumStyle = style
-// }
-// if style, ok := colorscheme["current-line-number"]; ok {
-// if curLineN == v.Cursor.Y && tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() {
-// lineNumStyle = style
-// }
-// }
-//
-// lineNum := strconv.Itoa(curLineN + 1)
-//
-// // Write the spaces before the line number if necessary
-// for i := 0; i < maxLineLength-len(lineNum); i++ {
-// v.drawCell(screenX, screenY, ' ', nil, lineNumStyle)
-// screenX++
-// }
-// // Write the actual line number
-// for _, ch := range lineNum {
-// v.drawCell(screenX, screenY, ch, nil, lineNumStyle)
-// screenX++
-// }
-//
-// // Write the extra space
-// v.drawCell(screenX, screenY, ' ', nil, lineNumStyle)
-// screenX++
-// }
-//
-// // Now we actually draw the line
-// colN := 0
-// strWidth := 0
-// tabSize := int(v.Buf.Settings["tabsize"].(float64))
-// for _, ch := range line {
-// if v.Buf.Settings["softwrap"].(bool) {
-// if screenX-v.x >= v.Width {
-// screenY++
-//
-// x := 0
-// if hasGutterMessages {
-// v.drawCell(v.x+x, screenY, ' ', nil, defStyle)
-// x++
-// v.drawCell(v.x+x, screenY, ' ', nil, defStyle)
-// x++
-// }
-// for i := 0; i < v.lineNumOffset; i++ {
-// screen.SetContent(v.x+i+x, screenY, ' ', nil, lineNumStyle)
-// }
-// screenX = v.x + v.lineNumOffset
-// }
-// }
-//
-// if tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() && v.Cursor.Y == curLineN && colN == v.Cursor.X {
-// v.DisplayCursor(screenX-v.leftCol, screenY)
-// }
-//
-// lineStyle := defStyle
-//
-// if v.Buf.Settings["syntax"].(bool) {
-// // Syntax highlighting is enabled
-// highlightStyle = v.matches[viewLine][colN]
-// }
-//
-// if v.Cursor.HasSelection() &&
-// (charNum.GreaterEqual(v.Cursor.CurSelection[0]) && charNum.LessThan(v.Cursor.CurSelection[1]) ||
-// charNum.LessThan(v.Cursor.CurSelection[0]) && charNum.GreaterEqual(v.Cursor.CurSelection[1])) {
-// // The current character is selected
-// lineStyle = defStyle.Reverse(true)
-//
-// if style, ok := colorscheme["selection"]; ok {
-// lineStyle = style
-// }
-// } else {
-// lineStyle = highlightStyle
-// }
-//
-// // We need to display the background of the linestyle with the correct color if cursorline is enabled
-// // and this is the current view and there is no selection on this line and the cursor is on this line
-// if v.Buf.Settings["cursorline"].(bool) && tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() && v.Cursor.Y == curLineN {
-// if style, ok := colorscheme["cursor-line"]; ok {
-// fg, _, _ := style.Decompose()
-// lineStyle = lineStyle.Background(fg)
-// }
-// }
-//
-// if ch == '\t' {
-// // If the character we are displaying is a tab, we need to do a bunch of special things
-//
-// // First the user may have configured an `indent-char` to be displayed to show that this
-// // is a tab character
-// lineIndentStyle := defStyle
-// if style, ok := colorscheme["indent-char"]; ok && v.Buf.Settings["indentchar"].(string) != " " {
-// lineIndentStyle = style
-// }
-// if v.Cursor.HasSelection() &&
-// (charNum.GreaterEqual(v.Cursor.CurSelection[0]) && charNum.LessThan(v.Cursor.CurSelection[1]) ||
-// charNum.LessThan(v.Cursor.CurSelection[0]) && charNum.GreaterEqual(v.Cursor.CurSelection[1])) {
-//
-// lineIndentStyle = defStyle.Reverse(true)
-//
-// if style, ok := colorscheme["selection"]; ok {
-// lineIndentStyle = style
-// }
-// }
-// if v.Buf.Settings["cursorline"].(bool) && tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() && v.Cursor.Y == curLineN {
-// if style, ok := colorscheme["cursor-line"]; ok {
-// fg, _, _ := style.Decompose()
-// lineIndentStyle = lineIndentStyle.Background(fg)
-// }
-// }
-// // Here we get the indent char
-// indentChar := []rune(v.Buf.Settings["indentchar"].(string))
-// if screenX-v.x-v.leftCol >= v.lineNumOffset {
-// v.drawCell(screenX-v.leftCol, screenY, indentChar[0], nil, lineIndentStyle)
-// }
-// // Now the tab has to be displayed as a bunch of spaces
-// visLoc := strWidth
-// remainder := tabSize - (visLoc % tabSize)
-// for i := 0; i < remainder-1; i++ {
-// screenX++
-// if screenX-v.x-v.leftCol >= v.lineNumOffset {
-// v.drawCell(screenX-v.leftCol, screenY, ' ', nil, lineStyle)
-// }
-// }
-// strWidth += remainder
-// } else if runewidth.RuneWidth(ch) > 1 {
-// if screenX-v.x-v.leftCol >= v.lineNumOffset {
-// v.drawCell(screenX, screenY, ch, nil, lineStyle)
-// }
-// for i := 0; i < runewidth.RuneWidth(ch)-1; i++ {
-// screenX++
-// if screenX-v.x-v.leftCol >= v.lineNumOffset {
-// v.drawCell(screenX-v.leftCol, screenY, '<', nil, lineStyle)
-// }
-// }
-// strWidth += StringWidth(string(ch), tabSize)
-// } else {
-// if screenX-v.x-v.leftCol >= v.lineNumOffset {
-// v.drawCell(screenX-v.leftCol, screenY, ch, nil, lineStyle)
-// }
-// strWidth += StringWidth(string(ch), tabSize)
-// }
-// charNum = charNum.Move(1, v.Buf)
-// screenX++
-// colN++
-// }
-// // Here we are at a newline
-//
-// if tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() && v.Cursor.Y == curLineN && colN == v.Cursor.X {
-// v.DisplayCursor(screenX-v.leftCol, screenY)
-// }
-//
-// // The newline may be selected, in which case we should draw the selection style
-// // with a space to represent it
-// if v.Cursor.HasSelection() &&
-// (charNum.GreaterEqual(v.Cursor.CurSelection[0]) && charNum.LessThan(v.Cursor.CurSelection[1]) ||
-// charNum.LessThan(v.Cursor.CurSelection[0]) && charNum.GreaterEqual(v.Cursor.CurSelection[1])) {
-//
-// selectStyle := defStyle.Reverse(true)
-//
-// if style, ok := colorscheme["selection"]; ok {
-// selectStyle = style
-// }
-// v.drawCell(screenX, screenY, ' ', nil, selectStyle)
-// screenX++
-// }
-//
-// charNum = charNum.Move(1, v.Buf)
-//
-// for i := 0; i < v.Width; i++ {
-// lineStyle := defStyle
-// if v.Buf.Settings["cursorline"].(bool) && tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() && v.Cursor.Y == curLineN {
-// if style, ok := colorscheme["cursor-line"]; ok {
-// fg, _, _ := style.Decompose()
-// lineStyle = lineStyle.Background(fg)
-// }
-// }
-// if screenX-v.x-v.leftCol+i >= v.lineNumOffset {
-// colorcolumn := int(v.Buf.Settings["colorcolumn"].(float64))
-// if colorcolumn != 0 && screenX-v.lineNumOffset+i == colorcolumn-1 {
-// if style, ok := colorscheme["color-column"]; ok {
-// fg, _, _ := style.Decompose()
-// lineStyle = lineStyle.Background(fg)
-// }
-// }
-// v.drawCell(screenX-v.leftCol+i, screenY, ' ', nil, lineStyle)
-// }
-// }
-// }
-// }
-
-// DisplayCursor draws the current buffer's cursor to the screen
-func (v *View) DisplayCursor(x, y int) {
- // screen.ShowCursor(v.x+v.Cursor.GetVisualX()+v.lineNumOffset-v.leftCol, y)
- screen.ShowCursor(x, y)
+// DisplayView draws the view to the screen
+func (v *View) DisplayView() {
+ if v.Type == vtTerm {
+ v.term.Display()
+ return
+ }
+
+ if v.Buf.Settings["softwrap"].(bool) && v.leftCol != 0 {
+ v.leftCol = 0
+ }
+
+ if v.Type == vtLog || v.Type == vtRaw {
+ // Log or raw views should always follow the cursor...
+ v.Relocate()
+ }
+
+ // We need to know the string length of the largest line number
+ // so we can pad appropriately when displaying line numbers
+ maxLineNumLength := len(strconv.Itoa(v.Buf.NumLines))
+
+ if v.Buf.Settings["ruler"] == true {
+ // + 1 for the little space after the line number
+ v.lineNumOffset = maxLineNumLength + 1
+ } else {
+ v.lineNumOffset = 0
+ }
+
+ // We need to add to the line offset if there are gutter messages
+ var hasGutterMessages bool
+ for _, v := range v.messages {
+ if len(v) > 0 {
+ hasGutterMessages = true
+ }
+ }
+ if hasGutterMessages {
+ v.lineNumOffset += 2
+ }
+
+ divider := 0
+ if v.x != 0 {
+ // One space for the extra split divider
+ v.lineNumOffset++
+ divider = 1
+ }
+
+ xOffset := v.x + v.lineNumOffset
+ yOffset := v.y
+
+ height := v.Height
+ width := v.Width
+ left := v.leftCol
+ top := v.Topline
+
+ v.cellview.Draw(v.Buf, top, height, left, width-v.lineNumOffset)
+
+ screenX := v.x
+ realLineN := top - 1
+ visualLineN := 0
+ var line []*Char
+ for visualLineN, line = range v.cellview.lines {
+ var firstChar *Char
+ if len(line) > 0 {
+ firstChar = line[0]
+ }
+
+ var softwrapped bool
+ if firstChar != nil {
+ if firstChar.realLoc.Y == realLineN {
+ softwrapped = true
+ }
+ realLineN = firstChar.realLoc.Y
+ } else {
+ realLineN++
+ }
+
+ colorcolumn := int(v.Buf.Settings["colorcolumn"].(float64))
+ if colorcolumn != 0 && xOffset+colorcolumn-v.leftCol < v.Width {
+ style := GetColor("color-column")
+ fg, _, _ := style.Decompose()
+ st := defStyle.Background(fg)
+ screen.SetContent(xOffset+colorcolumn-v.leftCol, yOffset+visualLineN, ' ', nil, st)
+ }
+
+ screenX = v.x
+
+ // If there are gutter messages we need to display the '>>' symbol here
+ if hasGutterMessages {
+ // msgOnLine stores whether or not there is a gutter message on this line in particular
+ msgOnLine := false
+ for k := range v.messages {
+ for _, msg := range v.messages[k] {
+ if msg.lineNum == realLineN {
+ msgOnLine = true
+ gutterStyle := defStyle
+ switch msg.kind {
+ case GutterInfo:
+ if style, ok := colorscheme["gutter-info"]; ok {
+ gutterStyle = style
+ }
+ case GutterWarning:
+ if style, ok := colorscheme["gutter-warning"]; ok {
+ gutterStyle = style
+ }
+ case GutterError:
+ if style, ok := colorscheme["gutter-error"]; ok {
+ gutterStyle = style
+ }
+ }
+ screen.SetContent(screenX, yOffset+visualLineN, '>', nil, gutterStyle)
+ screenX++
+ screen.SetContent(screenX, yOffset+visualLineN, '>', nil, gutterStyle)
+ screenX++
+ if v.Cursor.Y == realLineN && !messenger.hasPrompt {
+ messenger.Message(msg.msg)
+ messenger.gutterMessage = true
+ }
+ }
+ }
+ }
+ // If there is no message on this line we just display an empty offset
+ if !msgOnLine {
+ screen.SetContent(screenX, yOffset+visualLineN, ' ', nil, defStyle)
+ screenX++
+ screen.SetContent(screenX, yOffset+visualLineN, ' ', nil, defStyle)
+ screenX++
+ if v.Cursor.Y == realLineN && messenger.gutterMessage {
+ messenger.Reset()
+ messenger.gutterMessage = false
+ }
+ }
+ }
+
+ lineNumStyle := defStyle
+ if v.Buf.Settings["ruler"] == true {
+ // Write the line number
+ if style, ok := colorscheme["line-number"]; ok {
+ lineNumStyle = style
+ }
+ if style, ok := colorscheme["current-line-number"]; ok {
+ if realLineN == v.Cursor.Y && tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() {
+ lineNumStyle = style
+ }
+ }
+
+ lineNum := strconv.Itoa(realLineN + 1)
+
+ // Write the spaces before the line number if necessary
+ for i := 0; i < maxLineNumLength-len(lineNum); i++ {
+ screen.SetContent(screenX+divider, yOffset+visualLineN, ' ', nil, lineNumStyle)
+ screenX++
+ }
+ if softwrapped && visualLineN != 0 {
+ // Pad without the line number because it was written on the visual line before
+ for range lineNum {
+ screen.SetContent(screenX+divider, yOffset+visualLineN, ' ', nil, lineNumStyle)
+ screenX++
+ }
+ } else {
+ // Write the actual line number
+ for _, ch := range lineNum {
+ screen.SetContent(screenX+divider, yOffset+visualLineN, ch, nil, lineNumStyle)
+ screenX++
+ }
+ }
+
+ // Write the extra space
+ screen.SetContent(screenX+divider, yOffset+visualLineN, ' ', nil, lineNumStyle)
+ screenX++
+ }
+
+ var lastChar *Char
+ cursorSet := false
+ for _, char := range line {
+ if char != nil {
+ lineStyle := char.style
+
+ colorcolumn := int(v.Buf.Settings["colorcolumn"].(float64))
+ if colorcolumn != 0 && char.visualLoc.X == colorcolumn {
+ style := GetColor("color-column")
+ fg, _, _ := style.Decompose()
+ lineStyle = lineStyle.Background(fg)
+ }
+
+ charLoc := char.realLoc
+ for _, c := range v.Buf.cursors {
+ v.SetCursor(c)
+ if v.Cursor.HasSelection() &&
+ (charLoc.GreaterEqual(v.Cursor.CurSelection[0]) && charLoc.LessThan(v.Cursor.CurSelection[1]) ||
+ charLoc.LessThan(v.Cursor.CurSelection[0]) && charLoc.GreaterEqual(v.Cursor.CurSelection[1])) {
+ // The current character is selected
+ lineStyle = defStyle.Reverse(true)
+
+ if style, ok := colorscheme["selection"]; ok {
+ lineStyle = style
+ }
+ }
+ }
+ v.SetCursor(&v.Buf.Cursor)
+
+ if v.Buf.Settings["cursorline"].(bool) && tabs[curTab].CurView == v.Num &&
+ !v.Cursor.HasSelection() && v.Cursor.Y == realLineN {
+ style := GetColor("cursor-line")
+ fg, _, _ := style.Decompose()
+ lineStyle = lineStyle.Background(fg)
+ }
+
+ screen.SetContent(xOffset+char.visualLoc.X, yOffset+char.visualLoc.Y, char.drawChar, nil, lineStyle)
+
+ for i, c := range v.Buf.cursors {
+ v.SetCursor(c)
+ if tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() &&
+ v.Cursor.Y == char.realLoc.Y && v.Cursor.X == char.realLoc.X && (!cursorSet || i != 0) {
+ ShowMultiCursor(xOffset+char.visualLoc.X, yOffset+char.visualLoc.Y, i)
+ cursorSet = true
+ }
+ }
+ v.SetCursor(&v.Buf.Cursor)
+
+ lastChar = char
+ }
+ }
+
+ lastX := 0
+ var realLoc Loc
+ var visualLoc Loc
+ var cx, cy int
+ if lastChar != nil {
+ lastX = xOffset + lastChar.visualLoc.X + lastChar.width
+ for i, c := range v.Buf.cursors {
+ v.SetCursor(c)
+ if tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() &&
+ v.Cursor.Y == lastChar.realLoc.Y && v.Cursor.X == lastChar.realLoc.X+1 {
+ ShowMultiCursor(lastX, yOffset+lastChar.visualLoc.Y, i)
+ cx, cy = lastX, yOffset+lastChar.visualLoc.Y
+ }
+ }
+ v.SetCursor(&v.Buf.Cursor)
+ realLoc = Loc{lastChar.realLoc.X + 1, realLineN}
+ visualLoc = Loc{lastX - xOffset, lastChar.visualLoc.Y}
+ } else if len(line) == 0 {
+ for i, c := range v.Buf.cursors {
+ v.SetCursor(c)
+ if tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() &&
+ v.Cursor.Y == realLineN {
+ ShowMultiCursor(xOffset, yOffset+visualLineN, i)
+ cx, cy = xOffset, yOffset+visualLineN
+ }
+ }
+ v.SetCursor(&v.Buf.Cursor)
+ lastX = xOffset
+ realLoc = Loc{0, realLineN}
+ visualLoc = Loc{0, visualLineN}
+ }
+
+ if v.Cursor.HasSelection() &&
+ (realLoc.GreaterEqual(v.Cursor.CurSelection[0]) && realLoc.LessThan(v.Cursor.CurSelection[1]) ||
+ realLoc.LessThan(v.Cursor.CurSelection[0]) && realLoc.GreaterEqual(v.Cursor.CurSelection[1])) {
+ // The current character is selected
+ selectStyle := defStyle.Reverse(true)
+
+ if style, ok := colorscheme["selection"]; ok {
+ selectStyle = style
+ }
+ screen.SetContent(xOffset+visualLoc.X, yOffset+visualLoc.Y, ' ', nil, selectStyle)
+ }
+
+ if v.Buf.Settings["cursorline"].(bool) && tabs[curTab].CurView == v.Num &&
+ !v.Cursor.HasSelection() && v.Cursor.Y == realLineN {
+ for i := lastX; i < xOffset+v.Width-v.lineNumOffset; i++ {
+ style := GetColor("cursor-line")
+ fg, _, _ := style.Decompose()
+ style = style.Background(fg)
+ if !(tabs[curTab].CurView == v.Num && !v.Cursor.HasSelection() && i == cx && yOffset+visualLineN == cy) {
+ screen.SetContent(i, yOffset+visualLineN, ' ', nil, style)
+ }
+ }
+ }
+ }
+
+ if divider != 0 {
+ dividerStyle := defStyle
+ if style, ok := colorscheme["divider"]; ok {
+ dividerStyle = style
+ }
+ for i := 0; i < v.Height; i++ {
+ screen.SetContent(v.x, yOffset+i, '|', nil, dividerStyle.Reverse(true))
+ }
+ }
+}
+
+// ShowMultiCursor will display a cursor at a location
+// If i == 0 then the terminal cursor will be used
+// Otherwise a fake cursor will be drawn at the position
+func ShowMultiCursor(x, y, i int) {
+ if i == 0 {
+ screen.ShowCursor(x, y)
+ } else {
+ r, _, _, _ := screen.GetContent(x, y)
+ screen.SetContent(x, y, r, nil, defStyle.Reverse(true))
+ }
}
// Display renders the view, the cursor, and statusline
func (v *View) Display() {
+ if globalSettings["termtitle"].(bool) {
+ screen.SetTitle("micro: " + v.Buf.GetName())
+ }
v.DisplayView()
// Don't draw the cursor if it is out of the viewport or if it has a selection
- if (v.Cursor.Y-v.Topline < 0 || v.Cursor.Y-v.Topline > v.Height-1) || v.Cursor.HasSelection() {
+ if v.Num == tabs[curTab].CurView && (v.Cursor.Y-v.Topline < 0 || v.Cursor.Y-v.Topline > v.Height-1 || v.Cursor.HasSelection()) {
screen.HideCursor()
}
_, screenH := screen.Size()
+
+ if v.Buf.Settings["scrollbar"].(bool) {
+ v.scrollbar.Display()
+ }
+
if v.Buf.Settings["statusline"].(bool) {
v.sline.Display()
} else if (v.y + v.Height) != screenH-1 {
projects / micro.git / blobdiff