gtk2/gtk/gtkprintbackend.c
Alexander Larsson 27f746fbd0 Merge the gtk-printing branch. For more detailed ChangeLog entries, see
2006-04-21  Alexander Larsson  <alexl@redhat.com>

        Merge the gtk-printing branch.
	For more detailed ChangeLog entries, see the branch.

	* .cvsignore:
	* Makefile.am:
	* configure.in:
	* docs/tools/widgets.c:
	* gtk+-unix-print-2.0.pc.in:
	* gtk/Makefile.am:
	* gtk/gen-paper-names.c:
	* gtk/gtk.h:
	* gtk/gtk.symbols:
	* gtk/gtkenums.h:
	* gtk/gtkiconfactory.c:
	* gtk/gtkmarshalers.list:
	* gtk/gtkpagesetup.[ch]:
	* gtk/gtkpagesetupunixdialog.[ch]:
	* gtk/gtkpapersize.[ch]:
	* gtk/gtkprint-win32.[ch]:
	* gtk/gtkprintbackend.[ch]:
	* gtk/gtkprintcontext.[ch]:
	* gtk/gtkprinter-private.h:
	* gtk/gtkprinter.[ch]:
	* gtk/gtkprinteroption.[ch]:
	* gtk/gtkprinteroptionset.[ch]:
	* gtk/gtkprinteroptionwidget.[ch]:
	* gtk/gtkprintjob.[ch]:
	* gtk/gtkprintoperation-private.h:
	* gtk/gtkprintoperation-unix.c:
	* gtk/gtkprintoperation-win32.c:
	* gtk/gtkprintoperation.[ch]:
	* gtk/gtkprintsettings.[ch]:
	* gtk/gtkprintunixdialog.[ch]:
	* gtk/paper_names.c:
	* gtk/paper_names_offsets.c:
	Platform independent printing API and implementations
	for unix and windows.

	* gtk/gtkstock.h:
	* gtk/stock-icons/24/gtk-orientation-landscape.png:
	* gtk/stock-icons/24/gtk-orientation-portrait.png:
	* gtk/stock-icons/24/gtk-orientation-reverse-landscape.png:
	Add stock icons for page orientation.

	* modules/Makefile.am:
	* modules/printbackends/Makefile.am:
	* modules/printbackends/cups/Makefile.am:
	* modules/printbackends/cups/gtkcupsutils.[ch]:
	* modules/printbackends/cups/gtkprintbackendcups.[ch]:
	* modules/printbackends/cups/gtkprintercups.[ch]:

	Cups printing backend for unix.

	* modules/printbackends/lpr/Makefile.am:
	* modules/printbackends/lpr/gtkprintbackendlpr.[ch]:
	lpr printing backend for unix.

	* modules/printbackends/pdf/Makefile.am:
	* modules/printbackends/pdf/gtkprintbackendpdf.[ch]:
	print-to-pdf printing backend for unix.

	* tests/.cvsignore:
	* tests/Makefile.am:
	* tests/print-editor.c:
	Test application for printing.

	* gdk/gdk.symbols:
	* gdk/win32/gdkevents-win32.c:
	* gdk/win32/gdkwin32.h:
	Add gdk_win32_set_modal_dialog_libgtk_only so that we can pump the
	mainloop while displaying a win32 common dialog.

	* gdk/directfb/Makefile.am:
	Whitespace cleanup.
2006-04-21 15:09:32 +00:00

380 lines
9.6 KiB
C

/* GTK - The GIMP Toolkit
* gtkprintbackend.h: Abstract printer backend interfaces
* Copyright (C) 2003, Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gmodule.h>
#include "gtkintl.h"
#include "gtkmodules.h"
#include "gtkprivate.h"
#include "gtkprintbackend.h"
#include "gtkalias.h"
static void gtk_print_backend_base_init (gpointer g_class);
GQuark
gtk_print_backend_error_quark (void)
{
static GQuark quark = 0;
if (quark == 0)
quark = g_quark_from_static_string ("gtk-print-backend-error-quark");
return quark;
}
/*****************************************
* GtkPrintBackendModule modules *
*****************************************/
typedef struct _GtkPrintBackendModule GtkPrintBackendModule;
typedef struct _GtkPrintBackendModuleClass GtkPrintBackendModuleClass;
struct _GtkPrintBackendModule
{
GTypeModule parent_instance;
GModule *library;
void (*init) (GTypeModule *module);
void (*exit) (void);
GtkPrintBackend* (*create) (void);
gchar *path;
};
struct _GtkPrintBackendModuleClass
{
GTypeModuleClass parent_class;
};
G_DEFINE_TYPE (GtkPrintBackendModule, _gtk_print_backend_module, G_TYPE_TYPE_MODULE);
#define GTK_TYPE_PRINT_BACKEND_MODULE (_gtk_print_backend_module_get_type ())
#define GTK_PRINT_BACKEND_MODULE(module) (G_TYPE_CHECK_INSTANCE_CAST ((module), GTK_TYPE_PRINT_BACKEND_MODULE, GtkPrintBackendModule))
static GSList *loaded_backends;
static gboolean
gtk_print_backend_module_load (GTypeModule *module)
{
GtkPrintBackendModule *pb_module = GTK_PRINT_BACKEND_MODULE (module);
gpointer initp, exitp, createp;
pb_module->library = g_module_open (pb_module->path, G_MODULE_BIND_LAZY | G_MODULE_BIND_LOCAL);
if (!pb_module->library)
{
g_warning (g_module_error());
return FALSE;
}
/* extract symbols from the lib */
if (!g_module_symbol (pb_module->library, "pb_module_init",
&initp) ||
!g_module_symbol (pb_module->library, "pb_module_exit",
&exitp) ||
!g_module_symbol (pb_module->library, "pb_module_create",
&createp))
{
g_warning (g_module_error());
g_module_close (pb_module->library);
return FALSE;
}
pb_module->init = initp;
pb_module->exit = exitp;
pb_module->create = createp;
/* call the filesystems's init function to let it */
/* setup anything it needs to set up. */
pb_module->init (module);
return TRUE;
}
static void
gtk_print_backend_module_unload (GTypeModule *module)
{
GtkPrintBackendModule *pb_module = GTK_PRINT_BACKEND_MODULE (module);
pb_module->exit();
g_module_close (pb_module->library);
pb_module->library = NULL;
pb_module->init = NULL;
pb_module->exit = NULL;
pb_module->create = NULL;
}
/* This only will ever be called if an error occurs during
* initialization
*/
static void
gtk_print_backend_module_finalize (GObject *object)
{
GtkPrintBackendModule *module = GTK_PRINT_BACKEND_MODULE (object);
g_free (module->path);
G_OBJECT_CLASS (_gtk_print_backend_module_parent_class)->finalize (object);
}
static void
_gtk_print_backend_module_class_init (GtkPrintBackendModuleClass *class)
{
GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (class);
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
module_class->load = gtk_print_backend_module_load;
module_class->unload = gtk_print_backend_module_unload;
gobject_class->finalize = gtk_print_backend_module_finalize;
}
static void
_gtk_print_backend_module_init (GtkPrintBackendModule *pb_module)
{
}
static GtkPrintBackend *
_gtk_print_backend_module_create (GtkPrintBackendModule *pb_module)
{
GtkPrintBackend *pb;
if (g_type_module_use (G_TYPE_MODULE (pb_module)))
{
pb = pb_module->create ();
g_type_module_unuse (G_TYPE_MODULE (pb_module));
return pb;
}
return NULL;
}
GtkPrintBackend *
_gtk_print_backend_create (const char *backend_name)
{
GSList *l;
char *module_path;
char *full_name;
GtkPrintBackendModule *pb_module;
GtkPrintBackend *pb;
/* TODO: make module loading code work */
for (l = loaded_backends; l != NULL; l = l->next)
{
pb_module = l->data;
if (strcmp (G_TYPE_MODULE (pb_module)->name, backend_name) == 0)
return _gtk_print_backend_module_create (pb_module);
}
pb = NULL;
if (g_module_supported ())
{
full_name = g_strconcat ("printbackend-", backend_name, NULL);
module_path = _gtk_find_module (full_name, "printbackends");
g_free (full_name);
if (module_path)
{
pb_module = g_object_new (GTK_TYPE_PRINT_BACKEND_MODULE, NULL);
g_type_module_set_name (G_TYPE_MODULE (pb_module), backend_name);
pb_module->path = g_strdup (module_path);
loaded_backends = g_slist_prepend (loaded_backends,
pb_module);
pb = _gtk_print_backend_module_create (pb_module);
}
g_free (module_path);
}
return pb;
return NULL;
}
static void
gtk_print_backend_initialize (void)
{
static gboolean initialized = FALSE;
if (!initialized)
{
gtk_settings_install_property (g_param_spec_string ("gtk-print-backends",
P_("Default print backend"),
P_("List of the GtkPrintBackend backends to use by default"),
GTK_PRINT_BACKENDS,
GTK_PARAM_READWRITE));
initialized = TRUE;
}
}
GList *
gtk_print_backend_load_modules ()
{
GList *result;
GtkPrintBackend *backend;
gchar *setting;
gchar **backends;
gint i;
GtkSettings *settings;
result = NULL;
gtk_print_backend_initialize ();
settings = gtk_settings_get_default ();
g_object_get (settings, "gtk-print-backends", &setting, NULL);
backends = g_strsplit (setting, ",", -1);
for (i = 0; backends[i]; i++)
{
g_strchug (backends[i]);
g_strchomp (backends[i]);
backend = _gtk_print_backend_create (backends[i]);
if (backend)
result = g_list_append (result, backend);
}
g_strfreev (backends);
g_free (setting);
return result;
}
/*****************************************
* GtkPrintBackend *
*****************************************/
GType
gtk_print_backend_get_type (void)
{
static GType print_backend_type = 0;
if (!print_backend_type)
{
static const GTypeInfo print_backend_info =
{
sizeof (GtkPrintBackendIface), /* class_size */
gtk_print_backend_base_init, /* base_init */
NULL, /* base_finalize */
};
print_backend_type = g_type_register_static (G_TYPE_INTERFACE,
"GtkPrintBackend",
&print_backend_info, 0);
g_type_interface_add_prerequisite (print_backend_type, G_TYPE_OBJECT);
}
return print_backend_type;
}
static void
gtk_print_backend_base_init (gpointer g_class)
{
static gboolean initialized = FALSE;
if (!initialized)
{
GType iface_type = G_TYPE_FROM_INTERFACE (g_class);
g_signal_new ("printer-list-changed",
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkPrintBackendIface, printer_list_changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_signal_new ("printer-added",
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkPrintBackendIface, printer_added),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, G_TYPE_OBJECT);
g_signal_new ("printer-removed",
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkPrintBackendIface, printer_removed),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, G_TYPE_OBJECT);
g_signal_new ("printer-status-changed",
iface_type,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkPrintBackendIface, printer_status_changed),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, G_TYPE_OBJECT);
initialized = TRUE;
}
}
GList *
gtk_print_backend_get_printer_list (GtkPrintBackend *print_backend)
{
g_return_val_if_fail (GTK_IS_PRINT_BACKEND (print_backend), NULL);
return GTK_PRINT_BACKEND_GET_IFACE (print_backend)->get_printer_list (print_backend);
}
GtkPrinter *
gtk_print_backend_find_printer (GtkPrintBackend *print_backend,
const gchar *printer_name)
{
g_return_val_if_fail (GTK_IS_PRINT_BACKEND (print_backend), NULL);
return GTK_PRINT_BACKEND_GET_IFACE (print_backend)->find_printer (print_backend, printer_name);
}
void
gtk_print_backend_print_stream (GtkPrintBackend *print_backend,
GtkPrintJob *job,
gint data_fd,
GtkPrintJobCompleteFunc callback,
gpointer user_data,
GDestroyNotify dnotify)
{
g_return_if_fail (GTK_IS_PRINT_BACKEND (print_backend));
GTK_PRINT_BACKEND_GET_IFACE (print_backend)->print_stream (print_backend,
job,
data_fd,
callback,
user_data,
dnotify);
}
#define __GTK_PRINT_BACKEND_C__
#include "gtkaliasdef.c"