SerialConnect: allow to change line terminator

* It can now be used to send AT commands for example, which need \r
  instead of \n.

src/apps/serialconnect/SerialWindow.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014, Adrien Destugues, [email protected]
+ * Copyright 2012-2015, Adrien Destugues, [email protected]
  * Distributed under the terms of the MIT licence.
  */
 
@@ -116,6 +116,9 @@ SerialWindow::SerialWindow()
 	fDatabitsMenu->SetRadioMode(true);
 	settingsMenu->AddItem(fDatabitsMenu);
 
+	fLineTerminatorMenu = new BMenu("Line terminator");
+	fLineTerminatorMenu->SetRadioMode(true);
+	settingsMenu->AddItem(fLineTerminatorMenu);
 
 	BMessage* message = new BMessage(kMsgSettings);
 	message->AddInt32("parity", B_NO_PARITY);
@@ -195,6 +198,22 @@ SerialWindow::SerialWindow()
 	fFlowcontrolMenu->AddItem(noFlow);
 	fFlowcontrolMenu->SetTargetForItems(be_app);
 
+	message = new BMessage(kMsgSettings);
+	message->AddString("terminator", "\n");
+	BMenuItem* lf = new BMenuItem("LF (\\n)", message);
+
+	message = new BMessage(kMsgSettings);
+	message->AddString("terminator", "\r");
+	BMenuItem* cr = new BMenuItem("CR (\\r)", message);
+
+	message = new BMessage(kMsgSettings);
+	message->AddString("terminator", "\r\n");
+	BMenuItem* crlf = new BMenuItem("CR/LF (\\r\\n)", message);
+
+	fLineTerminatorMenu->AddItem(lf);
+	fLineTerminatorMenu->AddItem(cr);
+	fLineTerminatorMenu->AddItem(crlf);
+
 	CenterOnScreen();
 }
 
@@ -283,6 +302,7 @@ void SerialWindow::MessageReceived(BMessage* message)
 			data_bits dataBits;
 			parity_mode parity;
 			uint32 flowcontrol;
+			BString terminator;
 
 			if (message->FindInt32("databits", (int32*)&dataBits) == B_OK) {
 				for (int i = 0; i < fDatabitsMenu->CountItems(); i++) {
@@ -341,6 +361,18 @@ void SerialWindow::MessageReceived(BMessage* message)
 				}
 			}
 
+			if (message->FindString("terminator", &terminator) == B_OK) {
+				fTermView->SetLineTerminator(terminator);
+				for (int i = 0; i < fLineTerminatorMenu->CountItems(); i++) {
+					BMenuItem* item = fLineTerminatorMenu->ItemAt(i);
+					BString code;
+					item->Message()->FindString("terminator", &code);
+
+					if (terminator == code)
+						item->SetMarked(true);
+				}
+			}
+
 			return;
 		}
 	}

src/apps/serialconnect/SerialWindow.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014, Adrien Destugues, [email protected]
+ * Copyright 2012-2015, Adrien Destugues, [email protected]
  * Distributed under the terms of the MIT licence.
  */
 
@@ -31,6 +31,7 @@ class SerialWindow: public BWindow
 						BMenu*			fParityMenu;
 						BMenu*			fFlowcontrolMenu;
 						BMenu*			fBaudrateMenu;
+						BMenu*			fLineTerminatorMenu;
 						BFilePanel*		fLogFilePanel;
 
 		static const	int				kBaudrates[];

src/apps/serialconnect/TermView.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2014, Adrien Destugues, [email protected]
+ * Copyright 2012-2015, Adrien Destugues, [email protected]
  * Distributed under the terms of the MIT licence.
  */
 
@@ -184,6 +184,10 @@ TermView::KeyDown(const char* bytes, int32 numBytes)
 			numBytes = 1;
 			bytes = "\x7F";
 			break;
+		case '\n':
+			numBytes = fLineTerminator.Length();
+			bytes = fLineTerminator.String();
+			break;
 	}
 
 	// Send the bytes to the serial port
@@ -214,6 +218,13 @@ TermView::MessageReceived(BMessage* message)
 }
 
 
+void
+TermView::SetLineTerminator(BString terminator)
+{
+	fLineTerminator = terminator;
+}
+
+
 void
 TermView::PushBytes(const char* bytes, size_t length)
 {
@@ -255,6 +266,7 @@ TermView::_Init()
 	background.alpha = 255;
 
 	SetViewColor(background);
+	SetLineTerminator("\n");
 }
 
 

src/apps/serialconnect/TermView.h

@@ -1,9 +1,10 @@
 /*
- * Copyright 2012-2014, Adrien Destugues, [email protected]
+ * Copyright 2012-2015, Adrien Destugues, [email protected]
  * Distributed under the terms of the MIT licence.
  */
 
 
+#include <String.h>
 #include <View.h>
 
 extern "C" {
@@ -24,6 +25,7 @@ class TermView: public BView
 				void		GetPreferredSize(float* width, float* height);
 				void		KeyDown(const char* bytes, int32 numBytes);
 				void		MessageReceived(BMessage* message);
+				void		SetLineTerminator(BString bytes);
 
 				void		PushBytes(const char* bytes, const size_t length);
 
@@ -56,6 +58,8 @@ class TermView: public BView
 		int fFontWidth;
 		int fFontHeight;
 
+		BString fLineTerminator;
+
 		static const VTermScreenCallbacks sScreenCallbacks;
 
 		static const int kDefaultWidth = 80;