diff options
| author | Yoshinao Muramatu <ysno@ac.auone-net.jp> | 2020-08-10 11:01:05 +0900 |
|---|---|---|
| committer | aycabta <aycabta@gmail.com> | 2020-09-12 08:35:51 +0900 |
| commit | 0862744010907ecda8c8122557e97de9238d51a1 (patch) | |
| tree | ec3fe3dcbcc537c83b440fbb24e4250fda411075 /lib/reline/windows.rb | |
| parent | 770e66030a43967a7aae1050da364ed842f1f544 (diff) | |
[ruby/reline] clear_screen use Windows API
https://github.com/ruby/reline/commit/2c5ee54cb3
Diffstat (limited to 'lib/reline/windows.rb')
| -rw-r--r-- | lib/reline/windows.rb | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/lib/reline/windows.rb b/lib/reline/windows.rb index c229c8536f..6459daa37f 100644 --- a/lib/reline/windows.rb +++ b/lib/reline/windows.rb @@ -92,6 +92,7 @@ class Reline::Windows @@ReadConsoleInput = Win32API.new('kernel32', 'ReadConsoleInput', ['L', 'P', 'L', 'P'], 'L') @@GetFileType = Win32API.new('kernel32', 'GetFileType', ['L'], 'L') @@GetFileInformationByHandleEx = Win32API.new('kernel32', 'GetFileInformationByHandleEx', ['L', 'I', 'P', 'L'], 'I') + @@FillConsoleOutputAttribute = Win32API.new('kernel32', 'FillConsoleOutputAttribute', ['L', 'L', 'L', 'L', 'P'], 'L') @@input_buf = [] @@output_buf = [] @@ -249,9 +250,15 @@ class Reline::Windows end def self.clear_screen - # TODO: Use FillConsoleOutputCharacter and FillConsoleOutputAttribute - write "\e[2J" - write "\e[1;1H" + coord_screen_top_left = 0 + written = 0.chr * 4 + csbi = 0.chr * 22 + return if @@GetConsoleScreenBufferInfo.call(@@hConsoleHandle, csbi) == 0 + con_size = csbi[0, 4].unpack('SS').inject(:*) + attributes = csbi[8, 2].unpack('S').first + @@FillConsoleOutputCharacter.call(@@hConsoleHandle, 0x20, con_size, coord_screen_top_left, written) + @@FillConsoleOutputAttribute.call(@@hConsoleHandle, attributes, con_size, coord_screen_top_left, written) + @@SetConsoleCursorPosition.call(@@hConsoleHandle, coord_screen_top_left) end def self.set_screen_size(rows, columns) |