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Improve Fl_GTK_Printer_Driver::begin_job()

This commit is contained in:
ManoloFLTK 2024-04-08 16:29:25 +02:00
parent 5b802be52b
commit 2662cad50b
1 changed files with 34 additions and 3 deletions
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37
src/drivers/Posix/Fl_Posix_Printer_Driver.cxx
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@ -37,6 +37,9 @@ class Fl_Posix_Printer_Driver : public Fl_PostScript_File_Device {
#include <FL/filename.H>
#include "Fl_Posix_System_Driver.H"
#define GTK_PAPER_NAME_LETTER "na_letter"
#define GTK_PAPER_NAME_LEGAL "na_legal"
#define GTK_PAPER_NAME_A3 "iso_a3"
#define GTK_PAPER_NAME_A5 "iso_a5"
#define GTK_RESPONSE_NONE 0
#define GTK_RESPONSE_OK -5
#define GTK_PRINT_PAGES_RANGES 2
@ -85,7 +88,12 @@ public:
struct GtkPageRange { int start, end; };
typedef GtkPageRange* (*gtk_print_settings_get_page_ranges_t)(GtkPrintSettings*, int*);
typedef void (*g_object_unref_t)(void* object);
typedef struct _GClosure GClosure;
typedef void (*GClosureNotify)(void* data, GClosure *closure);
typedef void (*GCallback)(void);
typedef void (*g_signal_connect_data_t)(void *,const char *, GCallback, void*, GClosureNotify, int);
typedef void (*gtk_print_unix_dialog_set_embed_page_setup_t)(GtkPrintUnixDialog *dialog, gboolean embed);
typedef void (*gtk_widget_show_now_t)(GtkPrintUnixDialog *dialog);
typedef const char * (*gtk_check_version_t)(unsigned, unsigned, unsigned);
};
@ -101,6 +109,16 @@ bool Fl_GTK_Printer_Driver::probe_for_GTK() {
return Fl_Posix_System_Driver::probe_for_GTK(2, 10, &ptr_gtk);
}
static void run_response_handler(void *dialog, int response_id, void* data)
{
int *ri = (int *)data;
*ri = response_id;
}
static int no_dispatch(int /*event*/, Fl_Window* /*win*/) {
return 0;
}
int Fl_GTK_Printer_Driver::begin_job(int pagecount, int *firstpage, int *lastpage, char **perr_message) {
enum Fl_Paged_Device::Page_Format format = Fl_Paged_Device::A4;
@ -116,7 +134,18 @@ int Fl_GTK_Printer_Driver::begin_job(int pagecount, int *firstpage, int *lastpag
CALL_GTK(gtk_print_settings_set)(psettings, "output-uri", line); //2.10
CALL_GTK(gtk_print_unix_dialog_set_settings)(pdialog, psettings); //2.10
CALL_GTK(g_object_unref)(psettings);
int response_id = CALL_GTK(gtk_dialog_run)((GtkDialog*)pdialog);
int response_id = GTK_RESPONSE_NONE;
CALL_GTK(g_signal_connect_data)(pdialog, "response", GCallback(run_response_handler), &response_id, NULL, 0);
gtk_events_pending_t fl_gtk_events_pending = CALL_GTK(gtk_events_pending);
gtk_main_iteration_t fl_gtk_main_iteration = CALL_GTK(gtk_main_iteration);
CALL_GTK(gtk_widget_show_now)(pdialog); // map the GTK window on screen
Fl_Event_Dispatch old_dispatch = Fl::event_dispatch();
// prevent FLTK from processing any event
Fl::event_dispatch(no_dispatch);
while (response_id == GTK_RESPONSE_NONE) { // loop that shows the GTK dialog window
fl_gtk_main_iteration(); // one iteration of the GTK event loop
while (Fl::ready()) Fl::check(); // queued iterations of the FLTK event loop
}
if (response_id == GTK_RESPONSE_OK) {
GtkPageSetup *psetup = CALL_GTK(gtk_print_unix_dialog_get_page_setup)(pdialog); //2.10
GtkPageOrientation orient = CALL_GTK(gtk_page_setup_get_orientation)(psetup); //2.10
@ -124,6 +153,9 @@ int Fl_GTK_Printer_Driver::begin_job(int pagecount, int *firstpage, int *lastpag
GtkPaperSize* psize = CALL_GTK(gtk_page_setup_get_paper_size)(psetup); //2.10
const char *pname = CALL_GTK(gtk_paper_size_get_name)(psize); //2.10
if (strcmp(pname, GTK_PAPER_NAME_LETTER) == 0) format = Fl_Paged_Device::LETTER;
else if (strcmp(pname, GTK_PAPER_NAME_LEGAL) == 0) format = Fl_Paged_Device::LEGAL;
else if (strcmp(pname, GTK_PAPER_NAME_A3) == 0) format = Fl_Paged_Device::A3;
else if (strcmp(pname, GTK_PAPER_NAME_A5) == 0) format = Fl_Paged_Device::A5;
GtkPrinter *gprinter = CALL_GTK(gtk_print_unix_dialog_get_selected_printer)(pdialog); //2.10
psettings = CALL_GTK(gtk_print_unix_dialog_get_settings)(pdialog); //2.10
const char* p = CALL_GTK(gtk_print_settings_get)(psettings, "output-uri"); //2.10
@ -183,10 +215,9 @@ int Fl_GTK_Printer_Driver::begin_job(int pagecount, int *firstpage, int *lastpag
CALL_GTK(g_object_unref)(psettings);
}
CALL_GTK(gtk_widget_hide)((GtkWidget*)pdialog);
gtk_events_pending_t fl_gtk_events_pending = CALL_GTK(gtk_events_pending);
gtk_main_iteration_t fl_gtk_main_iteration = CALL_GTK(gtk_main_iteration);
while (fl_gtk_events_pending()) fl_gtk_main_iteration();
CALL_GTK(gtk_widget_destroy)((GtkWidget*)pdialog);
Fl::event_dispatch(old_dispatch);
Fl_Window *first = Fl::first_window();
if (first) {
Fl_Surface_Device::push_current(Fl_Display_Device::display_device());