Reorganize

terminal/qr.go

@@ -0,0 +1,63 @@
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package terminal
+
+import qrcode "github.com/skip2/go-qrcode"
+
+func GenerateQRCode(message string, colorize bool) (string, error) {
+	q, err := qrcode.New(message, qrcode.Medium)
+	if err != nil {
+		return "", err
+	}
+	return qrCodeToString(q.Bitmap(), colorize), nil
+}
+
+func qrCodeToString(bits [][]bool, colorize bool) string {
+	s := ""
+	for y := -1; y < len(bits); y += 2 {
+		if colorize {
+			s += ForegroundBlack + BackgroundWhite
+		}
+		for x := range bits[0] {
+			upper := false
+			if 0 <= y && y < len(bits) {
+				upper = bits[y][x]
+			}
+			lower := false
+			if 0 <= y+1 && y+1 < len(bits) {
+				lower = bits[y+1][x]
+			}
+			if upper && lower {
+				s += "█"
+			} else if upper && !lower {
+				s += "▀"
+			} else if !upper && lower {
+				s += "▄"
+			} else {
+				s += " "
+			}
+		}
+		if colorize {
+			s += ForegroundReset + BackgroundReset
+		}
+		s += "\n"
+	}
+	return s
+}

terminal/terminal.go

@@ -0,0 +1,27 @@
+/*
+ *    Copyright (c) 2018 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package terminal
+
+const (
+	ForegroundBlack string = "\033[30m"
+	ForegroundReset string = "\033[39m"
+	BackgroundWhite string = "\033[47m"
+	BackgroundReset string = "\033[49m"
+)

terminal/terminal_posix.go

@@ -0,0 +1,39 @@
+//go:build !windows
+
+/*
+ *    Copyright (c) 2018-2019 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package terminal
+
+// #include <unistd.h>
+import "C"
+import "os"
+
+func SupportsColor(fd uintptr) bool {
+	return C.isatty(C.int(fd)) != 0
+}
+
+func SetTitle(title string) bool {
+	if C.isatty(C.int(os.Stdout.Fd())) != 0 {
+		os.Stdout.Write([]byte("\x1b]2;" + title + "\x07"))
+		os.Stdout.Sync()
+		return true
+	}
+	return false
+}

terminal/terminal_windows.go

@@ -0,0 +1,49 @@
+/*
+ *    Copyright (c) 2018-2019 Unrud <unrud@outlook.com>
+ *
+ *    This file is part of Remote-Touchpad.
+ *
+ *    Remote-Touchpad is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    Remote-Touchpad is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with Remote-Touchpad.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package terminal
+
+import (
+	"syscall"
+	"unsafe"
+)
+
+const (
+	enableProcessedOuput            uint32 = 0x1
+	enableWrapAtEolOutput           uint32 = 0x2
+	enableVirtualTerminalProcessing uint32 = 0x4
+)
+
+var (
+	kernel32DLL         = syscall.NewLazyDLL("kernel32.dll")
+	setConsoleModeProc  = kernel32DLL.NewProc("SetConsoleMode")
+	setConsoleTitleProc = kernel32DLL.NewProc("SetConsoleTitleW")
+)
+
+func SupportsColor(fd uintptr) bool {
+	r, _, _ := setConsoleModeProc.Call(fd, uintptr(enableProcessedOuput|
+		enableWrapAtEolOutput|enableVirtualTerminalProcessing))
+	return r != 0
+}
+
+func SetTitle(title string) bool {
+	r, _, _ := setConsoleTitleProc.Call(
+		uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(title))))
+	return r != 0
+}