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Buffer fix (#201) 

* bug fix: Save/Restore Cursor mess + some refactoring

* typo fix
This commit is contained in:
rrrooommmaaa 2019-02-11 23:26:44 +03:00 committed by Liam Galvin
parent 1ca1b7c246
commit bc1b3f0dfd
3 changed files with 20 additions and 19 deletions
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33
buffer/buffer.go
View File

@ -10,10 +10,11 @@ import (
)
type SelectionMode int
const (
SelectionChar SelectionMode = iota // char-by-char selection
SelectionWord SelectionMode = iota // by word selection
SelectionLine SelectionMode = iota // whole line selection
SelectionChar SelectionMode = iota // char-by-char selection
SelectionWord SelectionMode = iota // by word selection
SelectionLine SelectionMode = iota // whole line selection
)
type Buffer struct {
@ -214,7 +215,7 @@ func (buffer *Buffer) StartSelection(col uint16, viewRow uint16, mode SelectionM
buffer.selectionEnd = nil
} else {
buffer.selectionEnd = &Position {
Col: int(col),
Col: int(col),
Line: int(row),
}
}
@ -240,7 +241,7 @@ func (buffer *Buffer) ExtendSelection(col uint16, viewRow uint16, complete bool)
row := buffer.convertViewLineToRawLine(viewRow) - uint64(buffer.terminalState.scrollLinesFromBottom)
buffer.selectionEnd = &Position {
Col: int(col),
Col: int(col),
Line: int(row),
}
@ -665,7 +666,7 @@ func (buffer *Buffer) Write(runes ...rune) {
}
for int(buffer.CursorColumn()) >= len(line.cells) {
line.cells = append(line.cells, buffer.terminalState.DefaultCell(int(buffer.CursorColumn()) == len(line.cells)))
line.Append(buffer.terminalState.DefaultCell(int(buffer.CursorColumn()) == len(line.cells)))
}
line.cells[buffer.terminalState.cursorX].attr = buffer.terminalState.CursorAttr
line.cells[buffer.terminalState.cursorX].setRune(r)
@ -681,7 +682,7 @@ func (buffer *Buffer) Write(runes ...rune) {
newLine := buffer.getCurrentLine()
if len(newLine.cells) == 0 {
newLine.cells = append(newLine.cells, buffer.terminalState.DefaultCell(true))
newLine.Append(buffer.terminalState.DefaultCell(true))
}
cell := &newLine.cells[0]
cell.setRune(r)
@ -696,7 +697,7 @@ func (buffer *Buffer) Write(runes ...rune) {
} else {
for int(buffer.CursorColumn()) >= len(line.cells) {
line.cells = append(line.cells, buffer.terminalState.DefaultCell(int(buffer.CursorColumn()) == len(line.cells)))
line.Append(buffer.terminalState.DefaultCell(int(buffer.CursorColumn()) == len(line.cells)))
}
cell := &line.cells[buffer.CursorColumn()]
@ -909,14 +910,12 @@ func (buffer *Buffer) EraseLineFromCursor() {
line.cells = line.cells[:buffer.terminalState.cursorX]
}
}
max := int(buffer.ViewWidth()) - len(line.cells)
buffer.SaveCursor()
for i := 0; i < max; i++ {
buffer.Write(0)
line.Append(buffer.terminalState.DefaultCell(true))
}
buffer.RestoreCursor()
}
func (buffer *Buffer) EraseDisplay() {
@ -969,11 +968,9 @@ func (buffer *Buffer) EraseDisplayFromCursor() {
}
line.cells = line.cells[:max]
for i := buffer.terminalState.cursorY + 1; i < buffer.ViewHeight(); i++ {
rawLine := buffer.convertViewLineToRawLine(i)
if int(rawLine) < len(buffer.lines) {
buffer.lines[int(rawLine)].cells = []Cell{}
}
for rawLine := buffer.convertViewLineToRawLine(buffer.terminalState.cursorY) + 1; int(rawLine) < len(buffer.lines); rawLine++ {
buffer.lines[int(rawLine)].cells = []Cell{}
}
}
@ -1061,7 +1058,7 @@ func (buffer *Buffer) ResizeView(width uint16, height uint16) {
if moveCount > len(nextLine.cells) {
moveCount = len(nextLine.cells)
}
line.cells = append(line.cells, nextLine.cells[:moveCount]...)
line.Append(nextLine.cells[:moveCount]...)
if moveCount == len(nextLine.cells) {
if i+offset <= int(buffer.terminalState.cursorY) {

4
buffer/line.go
View File

@ -75,4 +75,8 @@ func (line *Line) CutCellsFromEnd(n int) []Cell {
return cut
}
func (line *Line) Append(cells ...Cell) {
line.cells = append(line.cells, cells...)
}
// -------------------------------------------------------

2
terminal/csi.go
View File

@ -37,7 +37,7 @@ var csiSequences = []csiMapping{
{id: 'D', handler: csiCursorBackwardHandler, description: "Cursor Backward Ps Times (default = 1) (CUB)"},
{id: 'E', handler: csiCursorNextLineHandler, description: "Cursor Next Line Ps Times (default = 1) (CNL)"},
{id: 'F', handler: csiCursorPrecedingLineHandler, description: "Cursor Preceding Line Ps Times (default = 1) (CPL)"},
{id: 'G', handler: csiCursorCharacterAbsoluteHandler, description: "Cursor Character Absolute [column] (default = [row,1]) (CHA)"},
{id: 'G', handler: csiCursorCharacterAbsoluteHandler, description: "Cursor Horizontal Absolute [column] (default = [row,1]) (CHA)"},
{id: 'H', handler: csiCursorPositionHandler, description: "Cursor Position [row;column] (default = [1,1]) (CUP)"},
{id: 'J', handler: csiEraseInDisplayHandler, description: "Erase in Display (ED), VT100"},
{id: 'K', handler: csiEraseInLineHandler, description: "Erase in Line (EL), VT100"},