C++ BFilePanel::SetMessage方法代码示例

struct gui_download_window *gui_download_window_create(download_context *ctx,
		struct gui_window *parent)
{
	struct gui_download_window *download = (struct gui_download_window*)malloc(sizeof *download);
	if (download == NULL)
		return NULL;

	download->storageLock = new BLocker("storage_lock");
	download->storage = new BMallocIO();
	download->ctx = ctx;

	download->window = new NSDownloadWindow(ctx);

	// Also ask the user where to save the file
	BMessage* msg = new BMessage(B_SAVE_REQUESTED);

	BFilePanel* panel = new BFilePanel(B_SAVE_PANEL,
		new BMessenger(download->window), NULL, 0, false);

	panel->SetSaveText(download_context_get_filename(ctx));

	msg->AddPointer("source", panel);
	msg->AddPointer("dw", download);
	panel->SetMessage(msg);
	
	panel->Show();

	return download;
}

void
FileTypes::MessageReceived(BMessage *message)
{
	switch (message->what) {
		case kMsgSettingsChanged:
			fSettings.UpdateFrom(message);
			break;

		case kMsgOpenTypesWindow:
			if (fTypesWindow == NULL) {
				fTypesWindow = new FileTypesWindow(fSettings.Message());
				fTypesWindow->Show();
				fWindowCount++;
			} else
				fTypesWindow->Activate(true);
			break;
		case kMsgTypesWindowClosed:
			fTypesWindow = NULL;
			_WindowClosed();
			break;

		case kMsgOpenApplicationTypesWindow:
			if (fApplicationTypesWindow == NULL) {
				fApplicationTypesWindow = new ApplicationTypesWindow(
					fSettings.Message());
				fApplicationTypesWindow->Show();
				fWindowCount++;
			} else
				fApplicationTypesWindow->Activate(true);
			break;
		case kMsgApplicationTypesWindowClosed:
			fApplicationTypesWindow = NULL;
			_WindowClosed();
			break;

		case kMsgTypeWindowClosed:
			fTypeWindowCount--;
			// supposed to fall through

		case kMsgWindowClosed:
			_WindowClosed();
			break;


		case kMsgOpenFilePanel:
		{
			// the open file panel sends us a message when it's done
			const char* subTitle;
			if (message->FindString("title", &subTitle) != B_OK)
				subTitle = B_TRANSLATE("Open file");

			int32 what;
			if (message->FindInt32("message", &what) != B_OK)
				what = B_REFS_RECEIVED;

			BMessenger target;
			if (message->FindMessenger("target", &target) != B_OK)
				target = be_app_messenger;

			BString title = B_TRANSLATE("FileTypes");
			if (subTitle != NULL && subTitle[0]) {
				title.Append(": ");
				title.Append(subTitle);
			}

			fFilePanel->SetMessage(new BMessage(what));
			fFilePanel->Window()->SetTitle(title.String());
			fFilePanel->SetTarget(target);

			if (!fFilePanel->IsShowing())
				fFilePanel->Show();
			break;
		}

		case B_SILENT_RELAUNCH:
			// In case we were launched via the add-on, there is no types
			// window yet.
			if (fTypesWindow == NULL)
				PostMessage(kMsgOpenTypesWindow);
			break;

		case B_CANCEL:
			if (fWindowCount == 0)
				PostMessage(B_QUIT_REQUESTED);
			break;

		case B_SIMPLE_DATA:
			RefsReceived(message);
			break;

		default:
			BApplication::MessageReceived(message);
			break;
	}
}

/*
	open a file panel and ask for a PDF file
	the file panel will tell by itself if openning have been cancelled
	or not.
*/
void BepdfApplication::OpenSaveFilePanel(BHandler* handler, bool fileMode, BRefFilter* filter, BMessage* msg, const char* name) {
	BFilePanel* panel = NULL;

	// lazy construct file panel
	if (fileMode) {
		// file panel for selection of file
		if (mSaveFilePanel == NULL) {
			mSaveFilePanel = new BFilePanel (B_SAVE_PANEL,
							NULL, NULL, B_FILE_NODE, false, NULL, NULL, true);
		}

		// hide other file panel
		if (mSaveToDirectoryFilePanel != NULL && mSaveToDirectoryFilePanel->IsShowing()) {
			mSaveToDirectoryFilePanel->Hide();
		}

		panel = mSaveFilePanel;
	} else {
		// file panel for selection of directory
		if (mSaveToDirectoryFilePanel == NULL) {
			mSaveToDirectoryFilePanel = new BFilePanel (B_OPEN_PANEL,
							NULL, NULL, B_DIRECTORY_NODE, false, NULL, NULL, true);
		}

		// hide other file panel
		if (mSaveFilePanel != NULL && mSaveFilePanel->IsShowing()) {
			mSaveFilePanel->Hide();
		}

		panel = mSaveToDirectoryFilePanel;
	}

	// (re)-set to directory of currently opened PDF file
	// TODO decide if directory should be independent from PDF file
	panel->SetPanelDirectory(mSettings->GetPanelDirectory());

	if (name != NULL) {
		panel->SetSaveText(name);
	}
	else if (fileMode) {
		panel->SetSaveText("");
	}

	// set/reset filter
	panel->SetRefFilter(filter);

	// add kind to message
	BMessage message(B_SAVE_REQUESTED);
	if (msg == NULL) {
		msg = &message;
	}
	panel->SetMessage(msg);

	// set target
	BMessenger msgr(handler);
	panel->SetTarget(msgr);

	panel->Refresh();

	panel->Show();
}

void
FileTypes::MessageReceived(BMessage* message)
{
	switch (message->what) {
		case kMsgSettingsChanged:
			fSettings.UpdateFrom(message);
			break;

		case kMsgOpenTypesWindow:
			if (fTypesWindow == NULL) {
				fTypesWindow = new FileTypesWindow(fSettings.Message());
				if (fArgvType.Length() > 0) {
					// Set the window to the type that was requested on the
					// command line (-type), we do this only once, if we
					// ever opened more than one FileTypesWindow.
					fTypesWindow->SelectType(fArgvType.String());
					fArgvType = "";
				}
				fTypesWindow->Show();
				fWindowCount++;
			} else
				fTypesWindow->Activate(true);
			break;
		case kMsgTypesWindowClosed:
			fTypesWindow = NULL;
			_WindowClosed();
			break;

		case kMsgOpenApplicationTypesWindow:
			if (fApplicationTypesWindow == NULL) {
				fApplicationTypesWindow = new ApplicationTypesWindow(
					fSettings.Message());
				fApplicationTypesWindow->Show();
				fWindowCount++;
			} else
				fApplicationTypesWindow->Activate(true);
			break;
		case kMsgApplicationTypesWindowClosed:
			fApplicationTypesWindow = NULL;
			_WindowClosed();
			break;

		case kMsgTypeWindowClosed:
			fTypeWindowCount--;
			// supposed to fall through

		case kMsgWindowClosed:
			_WindowClosed();
			break;


		case kMsgOpenFilePanel:
		{
			// the open file panel sends us a message when it's done
			const char* subTitle;
			if (message->FindString("title", &subTitle) != B_OK)
				subTitle = B_TRANSLATE("Open file");

			int32 what;
			if (message->FindInt32("message", &what) != B_OK)
				what = B_REFS_RECEIVED;

			BMessenger target;
			if (message->FindMessenger("target", &target) != B_OK)
				target = be_app_messenger;

			BString title = B_TRANSLATE("FileTypes");
			if (subTitle != NULL && subTitle[0]) {
				title.Append(": ");
				title.Append(subTitle);
			}

			uint32 flavors = B_FILE_NODE;
			if (message->FindBool("allowDirs"))
				flavors |= B_DIRECTORY_NODE;
			fFilePanel->SetNodeFlavors(flavors);


			fFilePanel->SetMessage(new BMessage(what));
			fFilePanel->Window()->SetTitle(title.String());
			fFilePanel->SetTarget(target);

			if (!fFilePanel->IsShowing())
				fFilePanel->Show();
			break;
		}

		case B_SILENT_RELAUNCH:
			// In case we were launched via the add-on, there is no types
			// window yet.
			if (fTypesWindow == NULL)
				PostMessage(kMsgOpenTypesWindow);
			break;

		case B_CANCEL:
			if (fWindowCount == 0)
				PostMessage(B_QUIT_REQUESTED);
			break;

		case B_SIMPLE_DATA:
//.........这里部分代码省略.........

//.........这里部分代码省略.........
				strcat(filePath, theFile.LockBuffer(0));
				theFile.UnlockBuffer();
	
				// use BPath to resolve relative pathnames, above code forces it
				// to use /boot/home as a working dir as opposed to the app path
	
				BPath sendPath(filePath, NULL, true);
				
				// the BFile is used to verify if the file exists
				// based off the documentation get_ref_for_path *should*
				// return something other than B_OK if the file doesn't exist
				// but that doesn't seem to be working correctly
				
				BFile sendFile(sendPath.Path(), B_READ_ONLY);
				
				// if the file exists, send, otherwise drop to the file panel
				
				if (sendFile.InitCheck() == B_OK)
				{
					sendFile.Unset();
					entry_ref ref;
					get_ref_for_path(sendPath.Path(), &ref);
					msg->AddRef("refs", &ref);
					sMsgr.SendMessage(msg);	
					return true;	
				}
			}
			BFilePanel *myPanel (new BFilePanel);
			BString myTitle ("Sending a file to ");
	
			myTitle.Append (theNick);
			myPanel->Window()->SetTitle (myTitle.String());
	
			myPanel->SetMessage (msg);
	
			myPanel->SetButtonLabel (B_DEFAULT_BUTTON, "Send");
			myPanel->SetTarget (sMsgr);
			myPanel->Show();
		}
		else if (secondWord.ICompare ("CHAT") == 0
		&&       theNick != "-9z99")
		{
			BMessage msg (CHAT_ACTION);
	
			msg.AddString ("nick", theNick.String());
	
			sMsgr.SendMessage (&msg);
		}
		
		return true;
	}
	
	
	if (firstWord == "/DOP" || firstWord == "/DEOP")
	{
		BString theNick (RestOfString (data, 2));

		if (theNick != "-9z99")
		{
			BMessage send (M_SERVER_SEND);
	
			AddSend (&send, "MODE ");
			AddSend (&send, id);
			AddSend (&send, " -oooo ");
			AddSend (&send, theNick);
			AddSend (&send, endl);