diff options
Diffstat (limited to 'vendor/github.com/peterh/liner/output_windows.go')
-rw-r--r-- | vendor/github.com/peterh/liner/output_windows.go | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/vendor/github.com/peterh/liner/output_windows.go b/vendor/github.com/peterh/liner/output_windows.go new file mode 100644 index 000000000..63c9c5d75 --- /dev/null +++ b/vendor/github.com/peterh/liner/output_windows.go @@ -0,0 +1,76 @@ +package liner + +import ( + "unsafe" +) + +type coord struct { + x, y int16 +} +type smallRect struct { + left, top, right, bottom int16 +} + +type consoleScreenBufferInfo struct { + dwSize coord + dwCursorPosition coord + wAttributes int16 + srWindow smallRect + dwMaximumWindowSize coord +} + +func (s *State) cursorPos(x int) { + var sbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(s.hOut), uintptr(unsafe.Pointer(&sbi))) + procSetConsoleCursorPosition.Call(uintptr(s.hOut), + uintptr(int(x)&0xFFFF|int(sbi.dwCursorPosition.y)<<16)) +} + +func (s *State) eraseLine() { + var sbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(s.hOut), uintptr(unsafe.Pointer(&sbi))) + var numWritten uint32 + procFillConsoleOutputCharacter.Call(uintptr(s.hOut), uintptr(' '), + uintptr(sbi.dwSize.x-sbi.dwCursorPosition.x), + uintptr(int(sbi.dwCursorPosition.x)&0xFFFF|int(sbi.dwCursorPosition.y)<<16), + uintptr(unsafe.Pointer(&numWritten))) +} + +func (s *State) eraseScreen() { + var sbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(s.hOut), uintptr(unsafe.Pointer(&sbi))) + var numWritten uint32 + procFillConsoleOutputCharacter.Call(uintptr(s.hOut), uintptr(' '), + uintptr(sbi.dwSize.x)*uintptr(sbi.dwSize.y), + 0, + uintptr(unsafe.Pointer(&numWritten))) + procSetConsoleCursorPosition.Call(uintptr(s.hOut), 0) +} + +func (s *State) moveUp(lines int) { + var sbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(s.hOut), uintptr(unsafe.Pointer(&sbi))) + procSetConsoleCursorPosition.Call(uintptr(s.hOut), + uintptr(int(sbi.dwCursorPosition.x)&0xFFFF|(int(sbi.dwCursorPosition.y)-lines)<<16)) +} + +func (s *State) moveDown(lines int) { + var sbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(s.hOut), uintptr(unsafe.Pointer(&sbi))) + procSetConsoleCursorPosition.Call(uintptr(s.hOut), + uintptr(int(sbi.dwCursorPosition.x)&0xFFFF|(int(sbi.dwCursorPosition.y)+lines)<<16)) +} + +func (s *State) emitNewLine() { + // windows doesn't need to omit a new line +} + +func (s *State) getColumns() { + var sbi consoleScreenBufferInfo + procGetConsoleScreenBufferInfo.Call(uintptr(s.hOut), uintptr(unsafe.Pointer(&sbi))) + s.columns = int(sbi.dwSize.x) + if s.columns > 1 { + // Windows 10 needs a spare column for the cursor + s.columns-- + } +} |