C++ BFilePanel::SetSaveText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;
}

//.........这里部分代码省略.........


	//bool handled (false);

// ignore this part until some minor details with DCC Prefs are worked out
/*
		const char *directory = "/boot/home/";
		entry_ref ref;
		BEntry entry;

		create_directory (directory, 0777);
		if (entry.SetTo (directory) == B_NO_ERROR 
		if (entry.GetRef (&ref)     == B_NO_ERROR)
		{
			BDirectory dir (&ref);
			BEntry file_entry; 
			struct stat s;

			if (file_entry.SetTo (&dir, file.String()) == B_NO_ERROR
			&&  file_entry.GetStat (&s)       == B_NO_ERROR
			&&  S_ISREG (s.st_mode))
			{
				BString buffer;
				BAlert *alert;
				int32 which;

				buffer << "The file \""
					<< file
					<< "\" already exists in the specified folder.  "
						"Do you want to continue the transfer?";

				alert = new BAlert (
					"DCC Request",
					buffer.String(),
					"Refuse",
					"Get",
					"Resume",
					B_WIDTH_AS_USUAL,
					B_OFFSET_SPACING,
					B_WARNING_ALERT);

				which = alert->Go();

				if (which == 0)
				{
					return;
				}

				if (which == 2)
				{
					BFile file (&file_entry, B_READ_ONLY);
					off_t position;
					BPath path;

					file.GetSize (&position);
					file_entry.GetPath (&path);
					msg.AddString ("path", path.Path());
					msg.AddInt64 ("pos", position);

					AddResumeData (&msg);
					return;
				}
			}

			msg.AddRef ("directory", &ref);
			msg.AddString ("name", file);
			sMsgr.SendMessage (&msg);
			handled = true;
		}
	}
*/
	BFilePanel *panel;
	BString text;

	text << nick
		<< ": "
		<< file
		<< " ("
		<< size
		<< " bytes)";

	panel = new BFilePanel (
		B_SAVE_PANEL,
		&sMsgr,
		0,
		0,
		false,
		&msg);
	panel->SetButtonLabel (B_DEFAULT_BUTTON, "Accept");
	panel->SetButtonLabel (B_CANCEL_BUTTON, "Refuse");
	panel->SetSaveText (file.String());

	if (panel->Window()->Lock())
	{
		panel->Window()->SetTitle (text.String());
		panel->Window()->AddFilter (new DCCFileFilter (panel, msg));
		panel->Window()->Unlock();
	}
	panel->Show();
}

/*
	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
ServerAgent::DCCGetDialog (
	BString nick,
	BString file,
	BString size,
	BString ip,
	BString port)
{
	BMessage msg (M_DCC_ACCEPT), reply;
	
	msg.AddString ("vision:nick", nick.String());
	msg.AddString ("vision:file", file.String());
	msg.AddString ("vision:size", size.String());
	msg.AddString ("vision:ip", ip.String());
	msg.AddString ("vision:port", port.String());

      BFilePanel *panel;
	  BString text;

	  text << nick
        << ": "
        << file
        << " ("
        << size
        << " bytes)";

	  panel = new BFilePanel (
        B_SAVE_PANEL,
        &fSMsgr,
        0,
        0,
        false,
        &msg);
      panel->SetButtonLabel (B_DEFAULT_BUTTON, "Accept");
      panel->SetButtonLabel (B_CANCEL_BUTTON, "Refuse");
      panel->SetSaveText (file.String());
      
      BWindow *panelWindow (panel->Window());

      if (panelWindow->Lock())
      {
        panelWindow->SetTitle (text.String());
        panelWindow->SetFlags (panelWindow->Flags() | B_AVOID_FOCUS); 
        panelWindow->AddFilter (new DCCFileFilter (panel, msg));
        if (vision_app->GetBool ("dccAutoAccept"))
        {
          BDirectory path (vision_app->GetString ("dccDefPath"));
          if (path.InitCheck() == B_OK)
            panel->SetPanelDirectory(&path);
        }
        if (vision_app->GetBool ("dccAutoAccept"))
        {
          panelWindow->Hide();
          BButton *button (dynamic_cast<BButton *>(panel->Window()->FindView ("default button")));
          if (button)
            button->Invoke();
        }
        panelWindow->Unlock();
        panel->Show();
        // hack trick to ensure that the file panel doesn't take over the keyboard focus
        // when it pops up
        panelWindow->Lock();
        panelWindow->SetFlags (panelWindow->Flags() & ~B_AVOID_FOCUS);
        panelWindow->Unlock();
      }
}

BEntry *YabFilePanel::MyFilePanel(const char *name, const char *directory, const char* filename, int mode)
{
	BEntry *myEntry = NULL;
	entry_ref ref;

	sem_id semaphore = create_sem(0, "yabfilepanel");
	YabFilePanelLooper *myLooper = new YabFilePanelLooper(semaphore);
	myLooper->Run();
	
	if(directory)
	{
		myEntry=new BEntry(directory);
		if(myEntry->GetRef(&ref)!=B_OK)
		{
			myEntry->Unset();
			myEntry->SetTo("/boot/home/");
			myEntry->GetRef(&ref);
		}
		myEntry->Unset();
		delete myEntry;
	}

	BFilePanel *myFilePanel = NULL; 
	switch(mode)
	{
		case 0:
			myFilePanel = new BFilePanel(B_OPEN_PANEL, new BMessenger(myLooper, myLooper), &ref, B_FILE_NODE, false, NULL, NULL, true, true);
			break;
		case 1:
			myFilePanel = new BFilePanel(B_SAVE_PANEL, new BMessenger(myLooper, myLooper), &ref, B_FILE_NODE, false, NULL, NULL, true, true);
			if (filename) myFilePanel->SetSaveText(filename);
			break;
		case 2:
			myFilePanel = new BFilePanel(B_OPEN_PANEL, new BMessenger(myLooper, myLooper), &ref, B_DIRECTORY_NODE, false, NULL, NULL, true, true);
			break;
		case 3:
			myFilePanel = new BFilePanel(B_OPEN_PANEL, new BMessenger(myLooper, myLooper), &ref, B_FILE_NODE|B_DIRECTORY_NODE, false, NULL, NULL, true, true);
			break;
	}

	if(name) myFilePanel->Window()->SetTitle(name);
	myFilePanel->Show();

	bool inloop = true;
	while(inloop)
	{
		while(acquire_sem_etc(semaphore, 1, B_RELATIVE_TIMEOUT, 10000)==B_TIMED_OUT) ;

		myEntry = myLooper->GetChosenFile();
		inloop = false;
/*
		if(mode!=2) 
			inloop = false;
		else
		{
			if(myEntry->IsDirectory())
				inloop = false;
			else
			{
				myFilePanel->Show();
			}
		}
*/
	}
	myLooper->Lock();
	myLooper->Quit();

	delete_sem(semaphore);
	delete myFilePanel;
	return myEntry;
}