import (
"io/ioutil"
+ "reflect"
+ "runtime"
"strconv"
"strings"
"time"
// It stores information about the cursor, and the viewport
// that the user sees the buffer from.
type View struct {
- Cursor Cursor
+ // A pointer to the buffer's cursor for ease of access
+ Cursor *Cursor
// The topmost line, used for vertical scrolling
Topline int
// How much to offset because of line numbers
lineNumOffset int
- // The eventhandler for undo/redo
- eh *EventHandler
-
// Holds the list of gutter messages
- messages []GutterMessage
+ messages map[string][]GutterMessage
// The buffer
Buf *Buffer
v.OpenBuffer(buf)
- v.eh = NewEventHandler(v)
+ v.messages = make(map[string][]GutterMessage)
v.sline = Statusline{
view: v,
h--
v.width = int(float32(w) * float32(v.widthPercent) / 100)
// We subtract 1 for the statusline
- v.height = int(float32(h)*float32(v.heightPercent)/100) - 1
+ v.height = int(float32(h) * float32(v.heightPercent) / 100)
+ if settings["statusline"].(bool) {
+ // Make room for the status line if it is enabled
+ v.height--
+ }
}
// ScrollUp scrolls the view up n lines (if possible)
// causing them to lose the unsaved changes
// The message is what to print after saying "You have unsaved changes. "
func (v *View) CanClose(msg string) bool {
- if v.Buf.IsDirty() {
+ if v.Buf.IsModified {
quit, canceled := messenger.Prompt("You have unsaved changes. " + msg)
if !canceled {
if strings.ToLower(quit) == "yes" || strings.ToLower(quit) == "y" {
// This resets the topline, event handler and cursor.
func (v *View) OpenBuffer(buf *Buffer) {
v.Buf = buf
+ v.Cursor = &buf.Cursor
v.Topline = 0
v.leftCol = 0
- // Put the cursor at the first spot
- v.Cursor = Cursor{
- x: 0,
- y: 0,
- v: v,
- }
v.Cursor.ResetSelection()
+ v.messages = make(map[string][]GutterMessage)
- v.eh = NewEventHandler(v)
v.matches = Match(v)
// Set mouseReleased to true because we assume the mouse is not being pressed when
func (v *View) Relocate() bool {
ret := false
cy := v.Cursor.y
- if cy < v.Topline {
+ scrollmargin := int(settings["scrollmargin"].(float64))
+ if cy < v.Topline+scrollmargin && cy > scrollmargin-1 {
+ v.Topline = cy - scrollmargin
+ ret = true
+ } else if cy < v.Topline {
v.Topline = cy
ret = true
}
- if cy > v.Topline+v.height-1 {
- v.Topline = cy - v.height + 1
+ if cy > v.Topline+v.height-1-scrollmargin {
+ v.Topline = cy - v.height + 1 + scrollmargin
ret = true
}
// Window resized
v.Resize(e.Size())
case *tcell.EventKey:
- if e.Key() == tcell.KeyRune {
+ if e.Key() == tcell.KeyRune && e.Modifiers() == 0 {
// Insert a character
if v.Cursor.HasSelection() {
v.Cursor.DeleteSelection()
v.Cursor.ResetSelection()
}
- v.eh.Insert(v.Cursor.Loc(), string(e.Rune()))
+ v.Buf.Insert(v.Cursor.Loc(), string(e.Rune()))
v.Cursor.Right()
} else {
for key, action := range bindings {
- if e.Key() == key {
- relocate = action(v)
+ if e.Key() == key.keyCode {
+ if e.Key() == tcell.KeyRune {
+ if e.Rune() != key.r {
+ continue
+ }
+ }
+ 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])
+ if err != nil {
+ TermMessage(err)
+ }
+ }
+ }
}
}
}
v.Cursor.ResetSelection()
}
clip := e.Text()
- v.eh.Insert(v.Cursor.Loc(), clip)
+ v.Buf.Insert(v.Cursor.Loc(), clip)
v.Cursor.SetLoc(v.Cursor.Loc() + Count(clip))
v.freshClip = false
case *tcell.EventMouse:
x, y := e.Position()
x -= v.lineNumOffset - v.leftCol
y += v.Topline
+ // Don't relocate for mouse events
+ relocate = false
button := e.Buttons()
switch button {
case tcell.Button1:
// Left click
- if v.mouseReleased && !e.HasMotion() {
+ if v.mouseReleased {
v.MoveToMouseClick(x, y)
if time.Since(v.lastClickTime)/time.Millisecond < doubleClickThreshold {
if v.doubleClick {
}
v.mouseReleased = true
}
- // We don't want to relocate because otherwise the view will be relocated
- // every time the user moves the cursor
- relocate = false
case tcell.WheelUp:
- // Scroll up two lines
- v.ScrollUp(2)
- // We don't want to relocate if the user is scrolling
- relocate = false
+ // Scroll up
+ scrollspeed := int(settings["scrollspeed"].(float64))
+ v.ScrollUp(scrollspeed)
case tcell.WheelDown:
- // Scroll down two lines
- v.ScrollDown(2)
- // We don't want to relocate if the user is scrolling
- relocate = false
+ // Scroll down
+ scrollspeed := int(settings["scrollspeed"].(float64))
+ v.ScrollDown(scrollspeed)
}
}
}
// GutterMessage creates a message in this view's gutter
-func (v *View) GutterMessage(lineN int, msg string, kind int) {
+func (v *View) GutterMessage(section string, lineN int, msg string, kind int) {
lineN--
gutterMsg := GutterMessage{
lineNum: lineN,
msg: msg,
kind: kind,
}
- for _, gmsg := range v.messages {
- if gmsg.lineNum == lineN {
- return
+ for _, v := range v.messages {
+ for _, gmsg := range v {
+ if gmsg.lineNum == lineN {
+ return
+ }
}
}
- v.messages = append(v.messages, gutterMsg)
+ messages := v.messages[section]
+ v.messages[section] = append(messages, gutterMsg)
+}
+
+// ClearGutterMessages clears all gutter messages from a given section
+func (v *View) ClearGutterMessages(section string) {
+ v.messages[section] = []GutterMessage{}
+}
+
+// ClearAllGutterMessages clears all the gutter messages
+func (v *View) ClearAllGutterMessages() {
+ for k := range v.messages {
+ v.messages[k] = []GutterMessage{}
+ }
}
// DisplayView renders the view to the screen
}
var highlightStyle tcell.Style
- if len(v.messages) > 0 {
+ var hasGutterMessages bool
+ for _, v := range v.messages {
+ if len(v) > 0 {
+ hasGutterMessages = true
+ }
+ }
+ if hasGutterMessages {
v.lineNumOffset += 2
}
}
line := v.Buf.Lines[lineN+v.Topline]
- if len(v.messages) > 0 {
+ if hasGutterMessages {
msgOnLine := false
- for _, msg := range v.messages {
- if msg.lineNum == lineN+v.Topline {
- msgOnLine = true
- gutterStyle := tcell.StyleDefault
- switch msg.kind {
- case GutterInfo:
- if style, ok := colorscheme["gutter-info"]; ok {
- gutterStyle = style
+ for k := range v.messages {
+ for _, msg := range v.messages[k] {
+ if msg.lineNum == lineN+v.Topline {
+ msgOnLine = true
+ gutterStyle := tcell.StyleDefault
+ 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
+ }
}
- case GutterWarning:
- if style, ok := colorscheme["gutter-warning"]; ok {
- gutterStyle = style
+ screen.SetContent(x, lineN, '>', nil, gutterStyle)
+ x++
+ screen.SetContent(x, lineN, '>', nil, gutterStyle)
+ x++
+ if v.Cursor.y == lineN+v.Topline {
+ messenger.Message(msg.msg)
+ messenger.gutterMessage = true
}
- case GutterError:
- if style, ok := colorscheme["gutter-error"]; ok {
- gutterStyle = style
- }
- }
- screen.SetContent(x, lineN, '>', nil, gutterStyle)
- x++
- screen.SetContent(x, lineN, '>', nil, gutterStyle)
- x++
- if v.Cursor.y == lineN {
- messenger.Message(msg.msg)
- messenger.gutterMessage = true
}
}
}
x++
screen.SetContent(x, lineN, ' ', nil, tcell.StyleDefault)
x++
- if v.Cursor.y == lineN && messenger.gutterMessage {
+ if v.Cursor.y == lineN+v.Topline && messenger.gutterMessage {
messenger.Reset()
messenger.gutterMessage = false
}
}
if ch == '\t' {
- screen.SetContent(x+tabchars, lineN, ' ', nil, lineStyle)
+ lineIndentStyle := defStyle
+ if style, ok := colorscheme["indent-char"]; ok {
+ 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]) {
+
+ lineIndentStyle = tcell.StyleDefault.Reverse(true)
+
+ if style, ok := colorscheme["selection"]; ok {
+ lineIndentStyle = style
+ }
+ }
+ indentChar := []rune(settings["indentchar"].(string))
+ screen.SetContent(x-v.leftCol+tabchars, lineN, indentChar[0], nil, lineIndentStyle)
tabSize := int(settings["tabsize"].(float64))
for i := 0; i < tabSize-1; i++ {
tabchars++
}
}
+// DisplayCursor draws the current buffer's cursor to the screen
+func (v *View) DisplayCursor() {
+ // 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() {
+ screen.HideCursor()
+ } else {
+ screen.ShowCursor(v.Cursor.GetVisualX()+v.lineNumOffset-v.leftCol, v.Cursor.y-v.Topline)
+ }
+}
+
// Display renders the view, the cursor, and statusline
func (v *View) Display() {
v.DisplayView()
- v.Cursor.Display()
- v.sline.Display()
+ v.DisplayCursor()
+ if settings["statusline"].(bool) {
+ v.sline.Display()
+ }
}
projects / micro.git / blobdiff