]> git.lizzy.rs Git - micro.git/blobdiff - cmd/micro/view.go
Fix redrawing for splits
[micro.git] / cmd / micro / view.go
index bf9f2bde27a9b79837d7bfb1c131cb041e42f248..44fa6f8accee1cde6d0cdbc47716b7a16a250429 100644 (file)
@@ -7,6 +7,7 @@ import (
        "strings"
        "time"
 
+       "github.com/mattn/go-runewidth"
        "github.com/zyedidia/tcell"
 )
 
@@ -30,6 +31,9 @@ type View struct {
        width  int
        height int
 
+       // Where this view is located
+       x, y int
+
        // How much to offset because of line numbers
        lineNumOffset int
 
@@ -39,6 +43,11 @@ type View struct {
        // Is the help text opened in this view
        helpOpen bool
 
+       // This is the index of this view in the views array
+       Num int
+       // What tab is this view stored in
+       TabNum int
+
        // Is this view modifiable?
        Modifiable bool
 
@@ -90,6 +99,8 @@ func NewView(buf *Buffer) *View {
 func NewViewWidthHeight(buf *Buffer, w, h int) *View {
        v := new(View)
 
+       v.x, v.y = 0, 0
+
        v.widthPercent = w
        v.heightPercent = h
        v.Resize(screen.Size())
@@ -112,6 +123,13 @@ func NewViewWidthHeight(buf *Buffer, w, h int) *View {
 func (v *View) Resize(w, h int) {
        // Always include 1 line for the command line at the bottom
        h--
+       if len(tabs) > 1 {
+               // Include one line for the tab bar at the top
+               h--
+               v.y = 1
+       } else {
+               v.y = 0
+       }
        v.width = int(float32(w) * float32(v.widthPercent) / 100)
        // We subtract 1 for the statusline
        v.height = int(float32(h) * float32(v.heightPercent) / 100)
@@ -147,7 +165,7 @@ func (v *View) ScrollDown(n int) {
 // The message is what to print after saying "You have unsaved changes. "
 func (v *View) CanClose(msg string) bool {
        if v.Buf.IsModified {
-               quit, canceled := messenger.Prompt("You have unsaved changes. "+msg, "Unsaved")
+               quit, canceled := messenger.Prompt("You have unsaved changes. "+msg, "Unsaved", NoCompletion)
                if !canceled {
                        if strings.ToLower(quit) == "yes" || strings.ToLower(quit) == "y" {
                                return true
@@ -172,6 +190,7 @@ func (v *View) OpenBuffer(buf *Buffer) {
        v.Topline = 0
        v.leftCol = 0
        v.Cursor.ResetSelection()
+       v.Relocate()
        v.messages = make(map[string][]GutterMessage)
 
        v.matches = Match(v)
@@ -199,6 +218,20 @@ func (v *View) ReOpen() {
        }
 }
 
+func (v *View) VSplit() bool {
+       v.widthPercent /= 2
+       v.Resize(screen.Size())
+
+       newView := NewViewWidthHeight(NewBuffer([]byte{}, ""), v.widthPercent, v.heightPercent)
+       newView.TabNum = v.TabNum
+       newView.x = v.x + v.width
+       tab := tabs[v.TabNum]
+       tab.curView++
+       newView.Num = len(tab.views)
+       tab.views = append(tab.views, newView)
+       return false
+}
+
 // Relocate moves the view window so that the cursor is in view
 // This is useful if the user has scrolled far away, and then starts typing
 func (v *View) Relocate() bool {
@@ -250,8 +283,8 @@ func (v *View) MoveToMouseClick(x, y int) {
        }
 
        x = v.Cursor.GetCharPosInLine(y, x)
-       if x > Count(v.Buf.Lines[y]) {
-               x = Count(v.Buf.Lines[y])
+       if x > Count(v.Buf.Line(y)) {
+               x = Count(v.Buf.Line(y))
        }
        v.Cursor.X = x
        v.Cursor.Y = y
@@ -271,16 +304,23 @@ func (v *View) HandleEvent(event tcell.Event) {
                // Window resized
                v.Resize(e.Size())
        case *tcell.EventKey:
-               if e.Key() == tcell.KeyRune && e.Modifiers() == 0 {
+               if e.Key() == tcell.KeyRune && (e.Modifiers() == 0 || e.Modifiers() == tcell.ModShift) {
                        // Insert a character
                        if v.Cursor.HasSelection() {
                                v.Cursor.DeleteSelection()
                                v.Cursor.ResetSelection()
                        }
-                       v.Buf.Insert(v.Cursor.Loc(), string(e.Rune()))
+                       v.Buf.Insert(v.Cursor.Loc, string(e.Rune()))
                        v.Cursor.Right()
+
+                       for _, pl := range loadedPlugins {
+                               err := Call(pl+".onRune", []string{string(e.Rune())})
+                               if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
+                                       TermMessage(err)
+                               }
+                       }
                } else {
-                       for key, action := range bindings {
+                       for key, actions := range bindings {
                                if e.Key() == key.keyCode {
                                        if e.Key() == tcell.KeyRune {
                                                if e.Rune() != key.r {
@@ -288,12 +328,15 @@ func (v *View) HandleEvent(event tcell.Event) {
                                                }
                                        }
                                        if e.Modifiers() == key.modifiers {
-                                               relocate = action(v)
-                                               for _, pl := range loadedPlugins {
-                                                       funcName := strings.Split(runtime.FuncForPC(reflect.ValueOf(action).Pointer()).Name(), ".")
-                                                       err := Call(pl+"_on"+funcName[len(funcName)-1], nil)
-                                                       if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
-                                                               TermMessage(err)
+                                               relocate = false
+                                               for _, action := range actions {
+                                                       relocate = action(v) || relocate
+                                                       for _, pl := range loadedPlugins {
+                                                               funcName := strings.Split(runtime.FuncForPC(reflect.ValueOf(action).Pointer()).Name(), ".")
+                                                               err := Call(pl+".on"+funcName[len(funcName)-1], nil)
+                                                               if err != nil && !strings.HasPrefix(err.Error(), "function does not exist") {
+                                                                       TermMessage(err)
+                                                               }
                                                        }
                                                }
                                        }
@@ -306,13 +349,13 @@ func (v *View) HandleEvent(event tcell.Event) {
                        v.Cursor.ResetSelection()
                }
                clip := e.Text()
-               v.Buf.Insert(v.Cursor.Loc(), clip)
-               v.Cursor.SetLoc(v.Cursor.Loc() + Count(clip))
+               v.Buf.Insert(v.Cursor.Loc, clip)
+               v.Cursor.Loc = v.Cursor.Loc.Move(Count(clip), v.Buf)
                v.freshClip = false
        case *tcell.EventMouse:
                x, y := e.Position()
-               x -= v.lineNumOffset - v.leftCol
-               y += v.Topline
+               x -= v.lineNumOffset - v.leftCol + v.x
+               y += v.Topline - v.y
                // Don't relocate for mouse events
                relocate = false
 
@@ -346,10 +389,9 @@ func (v *View) HandleEvent(event tcell.Event) {
                                        v.tripleClick = false
                                        v.lastClickTime = time.Now()
 
-                                       loc := v.Cursor.Loc()
-                                       v.Cursor.OrigSelection[0] = loc
-                                       v.Cursor.CurSelection[0] = loc
-                                       v.Cursor.CurSelection[1] = loc
+                                       v.Cursor.OrigSelection[0] = v.Cursor.Loc
+                                       v.Cursor.CurSelection[0] = v.Cursor.Loc
+                                       v.Cursor.CurSelection[1] = v.Cursor.Loc
                                }
                                v.mouseReleased = false
                        } else if !v.mouseReleased {
@@ -359,7 +401,7 @@ func (v *View) HandleEvent(event tcell.Event) {
                                } else if v.doubleClick {
                                        v.Cursor.AddWordToSelection()
                                } else {
-                                       v.Cursor.CurSelection[1] = v.Cursor.Loc()
+                                       v.Cursor.CurSelection[1] = v.Cursor.Loc
                                }
                        }
                case tcell.ButtonNone:
@@ -375,7 +417,7 @@ func (v *View) HandleEvent(event tcell.Event) {
 
                                if !v.doubleClick && !v.tripleClick {
                                        v.MoveToMouseClick(x, y)
-                                       v.Cursor.CurSelection[1] = v.Cursor.Loc()
+                                       v.Cursor.CurSelection[1] = v.Cursor.Loc
                                }
                                v.mouseReleased = true
                        }
@@ -432,7 +474,7 @@ func (v *View) ClearAllGutterMessages() {
 // DisplayView renders the view to the screen
 func (v *View) DisplayView() {
        // The character number of the character in the top left of the screen
-       charNum := ToCharPos(0, v.Topline, v.Buf)
+       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
@@ -443,7 +485,7 @@ func (v *View) DisplayView() {
        } else {
                v.lineNumOffset = 0
        }
-       var highlightStyle tcell.Style
+       highlightStyle := defStyle
 
        var hasGutterMessages bool
        for _, v := range v.messages {
@@ -456,17 +498,17 @@ func (v *View) DisplayView() {
        }
 
        for lineN := 0; lineN < v.height; lineN++ {
-               var x int
+               x := v.x
                // If the buffer is smaller than the view height
                if lineN+v.Topline >= v.Buf.NumLines {
                        // We have to clear all this space
-                       for i := 0; i < v.width; i++ {
-                               screen.SetContent(i, lineN, ' ', nil, defStyle)
+                       for i := v.x; i < v.width; i++ {
+                               screen.SetContent(i, lineN+v.y, ' ', nil, defStyle)
                        }
 
                        continue
                }
-               line := v.Buf.Lines[lineN+v.Topline]
+               line := v.Buf.Line(lineN + v.Topline)
 
                if hasGutterMessages {
                        msgOnLine := false
@@ -474,7 +516,7 @@ func (v *View) DisplayView() {
                                for _, msg := range v.messages[k] {
                                        if msg.lineNum == lineN+v.Topline {
                                                msgOnLine = true
-                                               gutterStyle := tcell.StyleDefault
+                                               gutterStyle := defStyle
                                                switch msg.kind {
                                                case GutterInfo:
                                                        if style, ok := colorscheme["gutter-info"]; ok {
@@ -489,9 +531,9 @@ func (v *View) DisplayView() {
                                                                gutterStyle = style
                                                        }
                                                }
-                                               screen.SetContent(x, lineN, '>', nil, gutterStyle)
+                                               screen.SetContent(x, lineN+v.y, '>', nil, gutterStyle)
                                                x++
-                                               screen.SetContent(x, lineN, '>', nil, gutterStyle)
+                                               screen.SetContent(x, lineN+v.y, '>', nil, gutterStyle)
                                                x++
                                                if v.Cursor.Y == lineN+v.Topline {
                                                        messenger.Message(msg.msg)
@@ -501,9 +543,9 @@ func (v *View) DisplayView() {
                                }
                        }
                        if !msgOnLine {
-                               screen.SetContent(x, lineN, ' ', nil, tcell.StyleDefault)
+                               screen.SetContent(x, lineN+v.y, ' ', nil, defStyle)
                                x++
-                               screen.SetContent(x, lineN, ' ', nil, tcell.StyleDefault)
+                               screen.SetContent(x, lineN+v.y, ' ', nil, defStyle)
                                x++
                                if v.Cursor.Y == lineN+v.Topline && messenger.gutterMessage {
                                        messenger.Reset()
@@ -522,24 +564,24 @@ func (v *View) DisplayView() {
                if settings["ruler"] == true {
                        lineNum = strconv.Itoa(lineN + v.Topline + 1)
                        for i := 0; i < maxLineLength-len(lineNum); i++ {
-                               screen.SetContent(x, lineN, ' ', nil, lineNumStyle)
+                               screen.SetContent(x, lineN+v.y, ' ', nil, lineNumStyle)
                                x++
                        }
                        // Write the actual line number
                        for _, ch := range lineNum {
-                               screen.SetContent(x, lineN, ch, nil, lineNumStyle)
+                               screen.SetContent(x, lineN+v.y, ch, nil, lineNumStyle)
                                x++
                        }
 
                        if settings["ruler"] == true {
                                // Write the extra space
-                               screen.SetContent(x, lineN, ' ', nil, lineNumStyle)
+                               screen.SetContent(x, lineN+v.y, ' ', nil, lineNumStyle)
                                x++
                        }
                }
                // Write the line
                for colN, ch := range line {
-                       var lineStyle tcell.Style
+                       lineStyle := defStyle
 
                        if settings["syntax"].(bool) {
                                // Syntax highlighting is enabled
@@ -547,10 +589,10 @@ func (v *View) DisplayView() {
                        }
 
                        if v.Cursor.HasSelection() &&
-                               (charNum >= v.Cursor.CurSelection[0] && charNum < v.Cursor.CurSelection[1] ||
-                                       charNum < v.Cursor.CurSelection[0] && charNum >= v.Cursor.CurSelection[1]) {
+                               (charNum.GreaterEqual(v.Cursor.CurSelection[0]) && charNum.LessThan(v.Cursor.CurSelection[1]) ||
+                                       charNum.LessThan(v.Cursor.CurSelection[0]) && charNum.GreaterEqual(v.Cursor.CurSelection[1])) {
 
-                               lineStyle = tcell.StyleDefault.Reverse(true)
+                               lineStyle = defStyle.Reverse(true)
 
                                if style, ok := colorscheme["selection"]; ok {
                                        lineStyle = style
@@ -559,7 +601,7 @@ func (v *View) DisplayView() {
                                lineStyle = highlightStyle
                        }
 
-                       if settings["cursorline"].(bool) && v.Cursor.Y == lineN+v.Topline {
+                       if settings["cursorline"].(bool) && !v.Cursor.HasSelection() && v.Cursor.Y == lineN+v.Topline {
                                if style, ok := colorscheme["cursor-line"]; ok {
                                        fg, _, _ := style.Decompose()
                                        lineStyle = lineStyle.Background(fg)
@@ -572,25 +614,37 @@ func (v *View) DisplayView() {
                                        lineIndentStyle = style
                                }
                                if v.Cursor.HasSelection() &&
-                                       (charNum >= v.Cursor.CurSelection[0] && charNum < v.Cursor.CurSelection[1] ||
-                                               charNum < v.Cursor.CurSelection[0] && charNum >= v.Cursor.CurSelection[1]) {
+                                       (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 = tcell.StyleDefault.Reverse(true)
+                                       lineIndentStyle = defStyle.Reverse(true)
 
                                        if style, ok := colorscheme["selection"]; ok {
                                                lineIndentStyle = style
                                        }
                                }
-                               if settings["cursorline"].(bool) && v.Cursor.Y == lineN+v.Topline {
+                               if settings["cursorline"].(bool) && !v.Cursor.HasSelection() && v.Cursor.Y == lineN+v.Topline {
                                        if style, ok := colorscheme["cursor-line"]; ok {
                                                fg, _, _ := style.Decompose()
                                                lineIndentStyle = lineIndentStyle.Background(fg)
                                        }
                                }
                                indentChar := []rune(settings["indentchar"].(string))
-                               screen.SetContent(x-v.leftCol, lineN, indentChar[0], nil, lineIndentStyle)
+                               if x-v.leftCol >= v.lineNumOffset {
+                                       screen.SetContent(x-v.leftCol, lineN+v.y, indentChar[0], nil, lineIndentStyle)
+                               }
                                tabSize := int(settings["tabsize"].(float64))
                                for i := 0; i < tabSize-1; i++ {
+                                       x++
+                                       if x-v.leftCol >= v.lineNumOffset {
+                                               screen.SetContent(x-v.leftCol, lineN+v.y, ' ', nil, lineStyle)
+                                       }
+                               }
+                       } else if runewidth.RuneWidth(ch) > 1 {
+                               if x-v.leftCol >= v.lineNumOffset {
+                                       screen.SetContent(x-v.leftCol, lineN, ch, nil, lineStyle)
+                               }
+                               for i := 0; i < runewidth.RuneWidth(ch)-1; i++ {
                                        x++
                                        if x-v.leftCol >= v.lineNumOffset {
                                                screen.SetContent(x-v.leftCol, lineN, ' ', nil, lineStyle)
@@ -598,10 +652,10 @@ func (v *View) DisplayView() {
                                }
                        } else {
                                if x-v.leftCol >= v.lineNumOffset {
-                                       screen.SetContent(x-v.leftCol, lineN, ch, nil, lineStyle)
+                                       screen.SetContent(x-v.leftCol, lineN+v.y, ch, nil, lineStyle)
                                }
                        }
-                       charNum++
+                       charNum = charNum.Move(1, v.Buf)
                        x++
                }
                // Here we are at a newline
@@ -609,29 +663,31 @@ func (v *View) DisplayView() {
                // 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 >= v.Cursor.CurSelection[0] && charNum < v.Cursor.CurSelection[1] ||
-                               charNum < v.Cursor.CurSelection[0] && charNum >= v.Cursor.CurSelection[1]) {
+                       (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
                        }
-                       screen.SetContent(x-v.leftCol, lineN, ' ', nil, selectStyle)
+                       screen.SetContent(x-v.leftCol, lineN+v.y, ' ', nil, selectStyle)
                        x++
                }
 
-               charNum++
+               charNum = charNum.Move(1, v.Buf)
 
-               for i := 0; i < v.width-x; i++ {
-                       lineStyle := tcell.StyleDefault
-                       if settings["cursorline"].(bool) && v.Cursor.Y == lineN+v.Topline {
+               for i := 0; i < v.width-((x-v.x)-v.leftCol); i++ {
+                       lineStyle := defStyle
+                       if settings["cursorline"].(bool) && !v.Cursor.HasSelection() && v.Cursor.Y == lineN+v.Topline {
                                if style, ok := colorscheme["cursor-line"]; ok {
                                        fg, _, _ := style.Decompose()
                                        lineStyle = lineStyle.Background(fg)
                                }
                        }
-                       screen.SetContent(x+i, lineN, ' ', nil, lineStyle)
+                       if !(x-v.leftCol < v.lineNumOffset) {
+                               screen.SetContent(x+i, lineN+v.y, ' ', nil, lineStyle)
+                       }
                }
        }
 }
@@ -642,7 +698,7 @@ func (v *View) DisplayCursor() {
        if (v.Cursor.Y-v.Topline < 0 || v.Cursor.Y-v.Topline > v.height-1) || v.Cursor.HasSelection() {
                screen.HideCursor()
        } else {
-               screen.ShowCursor(v.Cursor.GetVisualX()+v.lineNumOffset-v.leftCol, v.Cursor.Y-v.Topline)
+               screen.ShowCursor(v.x+v.Cursor.GetVisualX()+v.lineNumOffset-v.leftCol, v.Cursor.Y-v.Topline+v.y)
        }
 }