SerialConnect: fix mixup of file panels

- Use separate file panels for "load" and "save" directions
- Change the message sent by the "load" panel according to the protocol
  to use (it just forwards the one from the BMenuItem used to invoke it,
  which already has the protocol information).

src/apps/serialconnect/SerialWindow.cpp

@@ -42,6 +42,7 @@ SerialWindow::SerialWindow()
 	: BWindow(BRect(100, 100, 400, 400), SerialWindow::kWindowTitle,
 		B_DOCUMENT_WINDOW, B_QUIT_ON_WINDOW_CLOSE | B_AUTO_UPDATE_SIZE_LIMITS)
 	, fLogFilePanel(NULL)
+	, fSendFilePanel(NULL)
 {
 	BMenuBar* menuBar = new BMenuBar(Bounds(), "menuBar");
 	menuBar->ResizeToPreferred();
@@ -249,6 +250,7 @@ SerialWindow::SerialWindow()
 SerialWindow::~SerialWindow()
 {
 	delete fLogFilePanel;
+	delete fSendFilePanel;
 }
 
 
@@ -325,18 +327,27 @@ void SerialWindow::MessageReceived(BMessage* message)
 			return;
 		}
 		case kMsgLogfile:
-		case kMsgSendFile:
 		{
 			// Let's lazy init the file panel
 			if (fLogFilePanel == NULL) {
-				fLogFilePanel = new BFilePanel(
-					message->what == kMsgSendFile ? B_OPEN_PANEL : B_SAVE_PANEL,
+				fLogFilePanel = new BFilePanel(B_SAVE_PANEL,
 					&be_app_messenger, NULL, B_FILE_NODE, false);
 				fLogFilePanel->SetMessage(message);
 			}
 			fLogFilePanel->Show();
 			return;
 		}
+		case kMsgSendFile:
+		{
+			// Let's lazy init the file panel
+			if (fSendFilePanel == NULL) {
+				fSendFilePanel = new BFilePanel(B_OPEN_PANEL,
+					&be_app_messenger, NULL, B_FILE_NODE, false);
+			}
+			fSendFilePanel->SetMessage(message);
+			fSendFilePanel->Show();
+			return;
+		}
 		case kMsgSettings:
 		{
 			int32 baudrate;

src/apps/serialconnect/SerialWindow.h

@@ -35,6 +35,7 @@ class SerialWindow: public BWindow
 						BMenu*			fLineTerminatorMenu;
 						BMenu*			fFileMenu;
 						BFilePanel*		fLogFilePanel;
+						BFilePanel*		fSendFilePanel;
 						BStatusBar*		fStatusBar;
 
 		static const	int				kBaudrates[];