* update year in copyright
* added a bit more (visual) information about the spool file format
* rename Configuration to PrintServerMessenger (still not the best name)
* remove ConfigPage{Job}Thread as both share the same code and make it privte in PrintServerMessenger
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25966 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Karsten Heimrich
parent
5fcf3f86e8
commit
6af681d7e6
@ -1,5 +1,5 @@
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/*
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* Copyright 2001-2006, Haiku.
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* Copyright 2001-2008, Haiku.
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* Distributed under the terms of the MIT license.
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*
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* Authors:
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@ -9,8 +9,6 @@
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* julun <host.haiku@gmx.de>
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*/
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// TODO refactor (avoid code duplications, decrease method sizes)
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#include <Alert.h>
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#include <Application.h>
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#include <Button.h>
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@ -36,27 +34,39 @@
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#include <string.h>
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static const int kSemTimeOut = 50000;
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static const char *kPrintServerNotRespondingText = "Print Server is not responding.";
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static const char *kNoPagesToPrintText = "No Pages to print!";
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/* !
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*
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* Summery of R5 spool file:
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*
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* |-------------------------|
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* | print_file_header |
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* |-------------------------|
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* | BMessage |
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* |-------------------------|
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* | _page_header_ |
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* | BPoint |
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* | BRect |
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* | BPicture |
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* |-------------------------|
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* | _page_header_ |
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* | BPoint |
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* | BRect |
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* | BPicture |
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* |-------------------------|
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* | _page_header_ |
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* |-------------------------|
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*
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* BeOS R5 print_file_header.version is 1 << 16
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* BeOS R5 print_file_header.first_page is -1
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*
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* remaining pages start at _page_header_.next_page of previous _page_header_
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*
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* See also: "How to Write a BeOS R5 Printer Driver" for description of spool
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* file format: http://haiku-os.org/documents/dev/how_to_write_a_printer_driver
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*
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*/
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// Summery of spool file format:
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// See articel "How to Write a BeOS R5 Printer Driver" for description
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// of spool file format:
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// http://haiku-os.org/documents/dev/how_to_write_a_printer_driver
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// print_file_header header
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// On BeOS R5 header.version is 1 << 16 and
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// header.first_page is -1.
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// BMessage job_settings
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// _page_header_ page_header
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// followed by number_of_pictures:
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// BPoint where
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// BRect bounds
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// BPicture picture
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// remaining pages start at page_header.next_page of previous page_header
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struct _page_header_ {
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int32 number_of_pictures;
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off_t next_page;
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@ -64,14 +74,6 @@ struct _page_header_ {
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};
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static status_t
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GetPrinterServerMessenger(BMessenger& messenger)
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{
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messenger = BMessenger(PSRV_SIGNATURE_TYPE);
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return messenger.IsValid() ? B_OK : B_ERROR;
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}
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static void
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ShowError(const char *message)
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{
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@ -80,155 +82,45 @@ ShowError(const char *message)
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}
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// #pragma mark -- PrintServerMessenger
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namespace BPrivate {
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class Configuration {
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public:
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Configuration(uint32 what, BMessage *input);
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~Configuration();
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status_t SendRequest(thread_func function);
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class PrintServerMessenger {
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public:
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PrintServerMessenger(uint32 what, BMessage *input);
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~PrintServerMessenger();
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BMessage* Request();
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BMessage* Request();
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status_t SendRequest();
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void SetResult(BMessage* result);
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BMessage* Result() const { return fResult; }
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void SetResult(BMessage* result);
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BMessage* Result() const { return fResult; }
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private:
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void RejectUserInput();
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void AllowUserInput();
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void DeleteSemaphore();
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static status_t GetPrintServerMessenger(BMessenger& msngr);
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uint32 fWhat;
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BMessage *fInput;
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BMessage *fRequest;
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BMessage *fResult;
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sem_id fThreadCompleted;
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BAlert *fHiddenApplicationModalWindow;
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private:
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void RejectUserInput();
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void AllowUserInput();
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void DeleteSemaphore();
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static status_t MessengerThread(void *data);
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uint32 fWhat;
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BMessage* fInput;
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BMessage* fRequest;
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BMessage* fResult;
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sem_id fThreadCompleted;
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BAlert* fHiddenApplicationModalWindow;
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};
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Configuration::Configuration(uint32 what, BMessage *input)
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: fWhat(what),
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fInput(input),
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fRequest(NULL),
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fResult(NULL),
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fThreadCompleted(-1),
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fHiddenApplicationModalWindow(NULL)
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{
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RejectUserInput();
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}
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} // namespace BPrivate
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using namespace BPrivate;
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Configuration::~Configuration()
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{
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DeleteSemaphore();
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// in case SendRequest could not start the thread
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delete fRequest; fRequest = NULL;
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AllowUserInput();
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}
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void
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Configuration::RejectUserInput()
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{
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BAlert* alert = new BAlert("bogus", "app_modal_dialog", "OK");
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fHiddenApplicationModalWindow = alert;
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alert->DefaultButton()->SetEnabled(false);
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alert->SetDefaultButton(NULL);
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alert->MoveTo(-65000, -65000);
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alert->Go(NULL);
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}
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void
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Configuration::AllowUserInput()
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{
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fHiddenApplicationModalWindow->Lock();
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fHiddenApplicationModalWindow->Quit();
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}
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void
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Configuration::DeleteSemaphore()
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{
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if (fThreadCompleted >= B_OK) {
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sem_id id = fThreadCompleted;
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fThreadCompleted = -1;
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delete_sem(id);
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}
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}
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status_t
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Configuration::SendRequest(thread_func function)
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{
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fThreadCompleted = create_sem(0, "Configuration");
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if (fThreadCompleted < B_OK)
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return B_ERROR;
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thread_id id = spawn_thread(function, "async_request", B_NORMAL_PRIORITY, this);
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if (id <= 0 || resume_thread(id) != B_OK)
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return B_ERROR;
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// Code copied from BAlert::Go()
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BWindow* window = dynamic_cast<BWindow*>(BLooper::LooperForThread(find_thread(NULL)));
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// Get the originating window, if it exists
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// Heavily modified from TextEntryAlert code; the original didn't let the
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// blocked window ever draw.
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if (window != NULL) {
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status_t err;
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for (;;) {
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do {
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err = acquire_sem_etc(fThreadCompleted, 1, B_RELATIVE_TIMEOUT,
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kSemTimeOut);
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// We've (probably) had our time slice taken away from us
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} while (err == B_INTERRUPTED);
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if (err == B_BAD_SEM_ID) {
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// Semaphore was finally nuked in SetResult(BMessage *)
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break;
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}
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window->UpdateIfNeeded();
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}
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} else {
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// No window to update, so just hang out until we're done.
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while (acquire_sem(fThreadCompleted) == B_INTERRUPTED);
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}
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status_t status;
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wait_for_thread(id, &status);
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return Result() != NULL ? B_OK : B_ERROR;
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}
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BMessage *
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Configuration::Request()
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{
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if (fRequest != NULL)
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return fRequest;
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if (fInput != NULL) {
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fRequest = new BMessage(*fInput);
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fRequest->what = fWhat;
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} else
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fRequest = new BMessage(fWhat);
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return fRequest;
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}
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void
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Configuration::SetResult(BMessage *result)
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{
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fResult = result;
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DeleteSemaphore();
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// terminate loop in thread spawned by SendRequest
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}
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} // BPrivate
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// #pragma mark -- BPrintJob
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BPrintJob::BPrintJob(const char *job_name)
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@ -261,93 +153,32 @@ BPrintJob::~BPrintJob()
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}
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static status_t
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ConfigPageThread(void *data)
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{
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BPrivate::Configuration* configuration = static_cast<BPrivate::Configuration*>(data);
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BMessenger printServer;
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if (GetPrinterServerMessenger(printServer) != B_OK) {
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ShowError(kPrintServerNotRespondingText);
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configuration->SetResult(NULL);
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return B_ERROR;
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}
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BMessage *request = configuration->Request();
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if (request == NULL) {
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configuration->SetResult(NULL);
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return B_ERROR;
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}
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BMessage reply;
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if (printServer.SendMessage(request, &reply) != B_OK
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|| reply.what != 'okok') {
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configuration->SetResult(NULL);
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return B_ERROR;
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}
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configuration->SetResult(new BMessage(reply));
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return B_OK;
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}
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status_t
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BPrintJob::ConfigPage()
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{
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BPrivate::Configuration configuration(PSRV_SHOW_PAGE_SETUP, fSetupMessage);
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status_t status = configuration.SendRequest(ConfigPageThread);
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PrintServerMessenger messenger(PSRV_SHOW_PAGE_SETUP, fSetupMessage);
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status_t status = messenger.SendRequest();
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if (status != B_OK)
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return status;
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delete fSetupMessage;
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fSetupMessage = configuration.Result();
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fSetupMessage = messenger.Result();
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_HandlePageSetup(fSetupMessage);
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return B_OK;
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}
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static status_t
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ConfigJobThread(void *data)
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{
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BPrivate::Configuration* configuration = static_cast<BPrivate::Configuration*>(data);
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BMessenger printServer;
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if (GetPrinterServerMessenger(printServer) != B_OK) {
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ShowError(kPrintServerNotRespondingText);
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configuration->SetResult(NULL);
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return B_ERROR;
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}
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BMessage *request = configuration->Request();
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if (request == NULL) {
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configuration->SetResult(NULL);
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return B_ERROR;
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}
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BMessage reply;
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if (printServer.SendMessage(request, &reply) != B_OK
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|| reply.what != 'okok') {
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configuration->SetResult(NULL);
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return B_ERROR;
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}
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configuration->SetResult(new BMessage(reply));
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return B_OK;
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}
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status_t
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BPrintJob::ConfigJob()
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{
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BPrivate::Configuration configuration(PSRV_SHOW_PRINT_SETUP, fSetupMessage);
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status_t status = configuration.SendRequest(ConfigJobThread);
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PrintServerMessenger messenger(PSRV_SHOW_PRINT_SETUP, fSetupMessage);
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status_t status = messenger.SendRequest();
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if (status != B_OK)
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return status;
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delete fSetupMessage;
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fSetupMessage = configuration.Result();
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fSetupMessage = messenger.Result();
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_HandlePrintSetup(fSetupMessage);
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return B_OK;
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@ -427,7 +258,7 @@ BPrintJob::CommitJob()
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return;
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if (fSpoolFileHeader.page_count == 0) {
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ShowError(kNoPagesToPrintText);
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ShowError("No Pages to print!");
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CancelJob();
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return;
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}
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@ -465,7 +296,7 @@ BPrintJob::CommitJob()
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// notify print server
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BMessenger printServer;
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if (GetPrinterServerMessenger(printServer) != B_OK)
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if (PrintServerMessenger::GetPrintServerMessenger(printServer) != B_OK)
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return;
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BMessage request(PSRV_PRINT_SPOOLED_JOB);
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@ -631,12 +462,11 @@ int32
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BPrintJob::PrinterType(void *) const
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{
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BMessenger printServer;
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if (GetPrinterServerMessenger(printServer) != B_OK)
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if (PrintServerMessenger::GetPrintServerMessenger(printServer) != B_OK)
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return B_COLOR_PRINTER; // default
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BMessage message(PSRV_GET_ACTIVE_PRINTER);
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BMessage reply;
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BMessage message(PSRV_GET_ACTIVE_PRINTER);
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printServer.SendMessage(&message, &reply);
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int32 type;
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@ -672,7 +502,7 @@ BPrintJob::_RecurseView(BView *view, BPoint origin, BPicture *picture,
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view->FillRect(rect);
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view->SetHighColor(highColor);
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}
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view->Draw(rect);
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view->PopState();
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view->fIsPrinting = false;
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@ -791,22 +621,23 @@ BPrintJob::_AddPicture(BPicture &picture, BRect &rect, BPoint &where)
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picture.Flatten(fSpoolFile);
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}
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// Returns a copy of the current printer name
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// or NULL if it could not be obtained.
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// Caller is responsible to free the string using free().
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/* !
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*
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* Returns a copy of the applications default printer name or NULL if it
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* could not be obtained. Caller is responsible to free the string using free().
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*
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*/
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char *
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BPrintJob::_GetCurrentPrinterName() const
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{
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BMessenger printServer;
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if (GetPrinterServerMessenger(printServer))
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if (PrintServerMessenger::GetPrintServerMessenger(printServer) != B_OK)
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return NULL;
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BMessage message(PSRV_GET_ACTIVE_PRINTER);
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BMessage reply;
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const char *printerName = NULL;
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BMessage reply;
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BMessage message(PSRV_GET_ACTIVE_PRINTER);
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if (printServer.SendMessage(&message, &reply) == B_OK)
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reply.FindString("printer_name", &printerName);
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@ -821,7 +652,7 @@ void
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BPrintJob::_LoadDefaultSettings()
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{
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BMessenger printServer;
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if (GetPrinterServerMessenger(printServer) != B_OK)
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if (PrintServerMessenger::GetPrintServerMessenger(printServer) != B_OK)
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return;
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BMessage message(PSRV_GET_DEFAULT_SETTINGS);
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@ -842,3 +673,167 @@ void BPrintJob::_ReservedPrintJob1() {}
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void BPrintJob::_ReservedPrintJob2() {}
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void BPrintJob::_ReservedPrintJob3() {}
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void BPrintJob::_ReservedPrintJob4() {}
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// #pragma mark -- PrintServerMessenger
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namespace BPrivate {
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PrintServerMessenger::PrintServerMessenger(uint32 what, BMessage *input)
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: fWhat(what),
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fInput(input),
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fRequest(NULL),
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fResult(NULL),
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fThreadCompleted(-1),
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fHiddenApplicationModalWindow(NULL)
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{
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RejectUserInput();
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}
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PrintServerMessenger::~PrintServerMessenger()
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{
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DeleteSemaphore();
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// in case SendRequest could not start the thread
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delete fRequest; fRequest = NULL;
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AllowUserInput();
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}
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void
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PrintServerMessenger::RejectUserInput()
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{
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fHiddenApplicationModalWindow = new BAlert("bogus", "app_modal", "OK");
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fHiddenApplicationModalWindow->DefaultButton()->SetEnabled(false);
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fHiddenApplicationModalWindow->SetDefaultButton(NULL);
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fHiddenApplicationModalWindow->MoveTo(-65000, -65000);
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fHiddenApplicationModalWindow->Go(NULL);
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}
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void
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PrintServerMessenger::AllowUserInput()
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{
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fHiddenApplicationModalWindow->Lock();
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fHiddenApplicationModalWindow->Quit();
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}
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|
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void
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PrintServerMessenger::DeleteSemaphore()
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{
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if (fThreadCompleted >= B_OK) {
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sem_id id = fThreadCompleted;
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fThreadCompleted = -1;
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delete_sem(id);
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}
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}
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status_t
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PrintServerMessenger::SendRequest()
|
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{
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fThreadCompleted = create_sem(0, "print_server_messenger_sem");
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if (fThreadCompleted < B_OK)
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return B_ERROR;
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thread_id id = spawn_thread(MessengerThread, "async_request",
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B_NORMAL_PRIORITY, this);
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if (id <= 0 || resume_thread(id) != B_OK)
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return B_ERROR;
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// Get the originating window, if it exists
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BWindow* window = dynamic_cast<BWindow*>(BLooper::LooperForThread(find_thread(NULL)));
|
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if (window) {
|
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status_t err;
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while (true) {
|
||||
do {
|
||||
err = acquire_sem_etc(fThreadCompleted, 1, B_RELATIVE_TIMEOUT,
|
||||
50000);
|
||||
// We've (probably) had our time slice taken away from us
|
||||
} while (err == B_INTERRUPTED);
|
||||
|
||||
// Semaphore was finally nuked in SetResult(BMessage *)
|
||||
if (err == B_BAD_SEM_ID)
|
||||
break;
|
||||
window->UpdateIfNeeded();
|
||||
}
|
||||
} else {
|
||||
// No window to update, so just hang out until we're done.
|
||||
while (acquire_sem(fThreadCompleted) == B_INTERRUPTED);
|
||||
}
|
||||
|
||||
status_t status;
|
||||
wait_for_thread(id, &status);
|
||||
|
||||
return Result() != NULL ? B_OK : B_ERROR;
|
||||
}
|
||||
|
||||
|
||||
BMessage *
|
||||
PrintServerMessenger::Request()
|
||||
{
|
||||
if (fRequest != NULL)
|
||||
return fRequest;
|
||||
|
||||
if (fInput != NULL) {
|
||||
fRequest = new BMessage(*fInput);
|
||||
fRequest->what = fWhat;
|
||||
} else
|
||||
fRequest = new BMessage(fWhat);
|
||||
|
||||
return fRequest;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
PrintServerMessenger::SetResult(BMessage *result)
|
||||
{
|
||||
fResult = result;
|
||||
DeleteSemaphore();
|
||||
// terminate loop in thread spawned by SendRequest
|
||||
}
|
||||
|
||||
|
||||
status_t
|
||||
PrintServerMessenger::GetPrintServerMessenger(BMessenger& messenger)
|
||||
{
|
||||
messenger = BMessenger(PSRV_SIGNATURE_TYPE);
|
||||
return messenger.IsValid() ? B_OK : B_ERROR;
|
||||
}
|
||||
|
||||
|
||||
status_t
|
||||
PrintServerMessenger::MessengerThread(void *data)
|
||||
{
|
||||
PrintServerMessenger* messenger = static_cast<PrintServerMessenger*>(data);
|
||||
|
||||
BMessenger printServer;
|
||||
if (messenger->GetPrintServerMessenger(printServer) != B_OK) {
|
||||
ShowError("Print Server is not responding.");
|
||||
messenger->SetResult(NULL);
|
||||
return B_ERROR;
|
||||
}
|
||||
|
||||
BMessage *request = messenger->Request();
|
||||
if (request == NULL) {
|
||||
messenger->SetResult(NULL);
|
||||
return B_ERROR;
|
||||
}
|
||||
|
||||
|
||||
BMessage reply;
|
||||
if (printServer.SendMessage(request, &reply) != B_OK
|
||||
|| reply.what != 'okok') {
|
||||
messenger->SetResult(NULL);
|
||||
return B_ERROR;
|
||||
}
|
||||
|
||||
messenger->SetResult(new BMessage(reply));
|
||||
return B_OK;
|
||||
}
|
||||
|
||||
|
||||
} // namespace BPrivate
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user