AlderconeStudio/PIKApp
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PIKApp/plug-ins/print/print.c

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <libpika/pika.h>
#include <libpika/pikaui.h>
#include "print.h"
#include "print-settings.h"
#include "print-page-layout.h"
#include "print-page-setup.h"
#include "print-draw-page.h"
#include "libpika/stdplugins-intl.h"
#define PLUG_IN_BINARY "print"
#define PLUG_IN_ROLE "pika-print"
#define PRINT_PROC_NAME "file-print-gtk"
#ifndef EMBED_PAGE_SETUP
#define PAGE_SETUP_PROC_NAME "file-print-gtk-page-setup"
#define PRINT_TEMP_PROC_NAME "file-print-gtk-page-setup-notify-temp"
#endif
G_DEFINE_QUARK (pika-plugin-print-error-quark, pika_plugin_print_error)
typedef struct _Print Print;
typedef struct _PrintClass PrintClass;
struct _Print
{
PikaPlugIn parent_instance;
};
struct _PrintClass
{
PikaPlugInClass parent_class;
};
#define PRINT_TYPE (print_get_type ())
#define PRINT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), PRINT_TYPE, Print))
GType print_get_type (void) G_GNUC_CONST;
static GList * print_query_procedures (PikaPlugIn *plug_in);
static PikaProcedure * print_create_procedure (PikaPlugIn *plug_in,
const gchar *name);
static PikaValueArray * print_run (PikaProcedure *procedure,
PikaRunMode run_mode,
PikaImage *image,
gint n_drawables,
PikaDrawable **drawables,
PikaProcedureConfig *config,
gpointer run_data);
static PikaPDBStatusType print_image (PikaImage *image,
gboolean interactive,
GError **error);
#ifndef EMBED_PAGE_SETUP
static PikaPDBStatusType page_setup (PikaImage *image);
#endif
static void print_show_error (const gchar *message);
static void print_operation_set_name (GtkPrintOperation *operation,
PikaImage *image);
static void begin_print (GtkPrintOperation *operation,
GtkPrintContext *context,
PrintData *data);
static void end_print (GtkPrintOperation *operation,
GtkPrintContext *context,
PikaLayer **layer);
static void draw_page (GtkPrintOperation *print,
GtkPrintContext *context,
gint page_nr,
PrintData *data);
static GtkWidget * create_custom_widget (GtkPrintOperation *operation,
PrintData *data);
#ifndef EMBED_PAGE_SETUP
static gchar * print_temp_proc_name (PikaImage *image);
static gchar * print_temp_proc_install (PikaImage *image);
/* Keep a reference to the current GtkPrintOperation
* for access by the temporary procedure.
*/
static GtkPrintOperation *print_operation = NULL;
#endif
G_DEFINE_TYPE (Print, print, PIKA_TYPE_PLUG_IN)
PIKA_MAIN (PRINT_TYPE)
DEFINE_STD_SET_I18N
static void
print_class_init (PrintClass *klass)
{
PikaPlugInClass *plug_in_class = PIKA_PLUG_IN_CLASS (klass);
plug_in_class->query_procedures = print_query_procedures;
plug_in_class->create_procedure = print_create_procedure;
plug_in_class->set_i18n = STD_SET_I18N;
}
static void
print_init (Print *print)
{
}
static GList *
print_query_procedures (PikaPlugIn *plug_in)
{
GList *list = NULL;
list = g_list_append (list, g_strdup (PRINT_PROC_NAME));
#ifndef EMBED_PAGE_SETUP
list = g_list_append (list, g_strdup (PAGE_SETUP_PROC_NAME));
#endif
return list;
}
static PikaProcedure *
print_create_procedure (PikaPlugIn *plug_in,
const gchar *name)
{
PikaProcedure *procedure = NULL;
if (! strcmp (name, PRINT_PROC_NAME))
{
procedure = pika_image_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
print_run, NULL, NULL);
pika_procedure_set_image_types (procedure, "*");
pika_procedure_set_sensitivity_mask (procedure,
PIKA_PROCEDURE_SENSITIVE_DRAWABLE |
PIKA_PROCEDURE_SENSITIVE_DRAWABLES |
PIKA_PROCEDURE_SENSITIVE_NO_DRAWABLES);
pika_procedure_set_menu_label (procedure, _("_Print..."));
pika_procedure_set_icon_name (procedure, PIKA_ICON_DOCUMENT_PRINT);
pika_procedure_add_menu_path (procedure, "<Image>/File/[Send]");
pika_procedure_set_documentation (procedure,
_("Print the image"),
"Print the image using the "
"GTK+ Print API.",
name);
pika_procedure_set_attribution (procedure,
"Bill Skaggs, Sven Neumann, Stefan Röllin",
"Bill Skaggs <weskaggs@primate.ucdavis.edu>",
"2006 - 2008");
}
#ifndef EMBED_PAGE_SETUP
else if (! strcmp (name, PAGE_SETUP_PROC_NAME))
{
procedure = pika_image_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_PLUGIN,
print_run, NULL, NULL);
pika_procedure_set_image_types (procedure, "*");
pika_procedure_set_menu_label (procedure, _("Page Set_up..."));
pika_procedure_set_icon_name (procedure, PIKA_ICON_DOCUMENT_PAGE_SETUP);
pika_procedure_add_menu_path (procedure, "<Image>/File/[Send]");
pika_procedure_set_documentation (procedure,
_("Adjust page size and orientation "
"for printing"),
"Adjust page size and orientation "
"for printing the image using the "
"GTK+ Print API.",
name);
pika_procedure_set_attribution (procedure,
"Bill Skaggs, Sven Neumann, Stefan Röllin",
"Sven Neumann <sven@gimp.org>",
"2008");
}
#endif
return procedure;
}
static PikaValueArray *
print_run (PikaProcedure *procedure,
PikaRunMode run_mode,
PikaImage *image,
gint n_drawables,
PikaDrawable **drawables,
PikaProcedureConfig *config,
gpointer run_data)
{
PikaPDBStatusType status;
GError *error = NULL;
gegl_init (NULL, NULL);
if (strcmp (pika_procedure_get_name (procedure),
PRINT_PROC_NAME) == 0)
{
status = print_image (image, run_mode == PIKA_RUN_INTERACTIVE, &error);
if (error && run_mode == PIKA_RUN_INTERACTIVE)
{
print_show_error (error->message);
}
}
#ifndef EMBED_PAGE_SETUP
else if (strcmp (pika_procedure_get_name (procedure),
PAGE_SETUP_PROC_NAME) == 0)
{
if (run_mode == PIKA_RUN_INTERACTIVE)
{
status = page_setup (image);
}
else
{
status = PIKA_PDB_CALLING_ERROR;
}
}
#endif
else
{
status = PIKA_PDB_CALLING_ERROR;
}
return pika_procedure_new_return_values (procedure, status, error);
}
static PikaPDBStatusType
print_image (PikaImage *image,
gboolean interactive,
GError **error)
{
GtkPrintOperation *operation;
GtkPrintOperationResult result;
PikaLayer *layer;
PrintData data;
#ifndef EMBED_PAGE_SETUP
gchar *temp_proc;
#endif
/* create a print layer from the projection */
layer = pika_layer_new_from_visible (image, image, PRINT_PROC_NAME);
operation = gtk_print_operation_new ();
gtk_print_operation_set_n_pages (operation, 1);
print_operation_set_name (operation, image);
print_page_setup_load (operation, image);
/* fill in the PrintData struct */
data.image = image;
data.drawable = PIKA_DRAWABLE (layer);
data.unit = pika_get_default_unit ();
data.image_unit = pika_image_get_unit (image);
data.offset_x = 0;
data.offset_y = 0;
data.center = CENTER_BOTH;
data.use_full_page = FALSE;
data.draw_crop_marks = FALSE;
data.operation = operation;
pika_image_get_resolution (image, &data.xres, &data.yres);
print_settings_load (&data);
gtk_print_operation_set_unit (operation, GTK_UNIT_PIXEL);
g_signal_connect (operation, "begin-print",
G_CALLBACK (begin_print),
&data);
g_signal_connect (operation, "draw-page",
G_CALLBACK (draw_page),
&data);
g_signal_connect (operation, "end-print",
G_CALLBACK (end_print),
&layer);
#ifndef EMBED_PAGE_SETUP
print_operation = operation;
temp_proc = print_temp_proc_install (image);
pika_plug_in_extension_enable (pika_get_plug_in ());
#endif
if (interactive)
{
pika_ui_init (PLUG_IN_BINARY);
g_signal_connect_swapped (operation, "end-print",
G_CALLBACK (print_settings_save),
&data);
g_signal_connect (operation, "create-custom-widget",
G_CALLBACK (create_custom_widget),
&data);
gtk_print_operation_set_custom_tab_label (operation, _("Image Settings"));
#ifdef EMBED_PAGE_SETUP
gtk_print_operation_set_embed_page_setup (operation, TRUE);
#endif
result = gtk_print_operation_run (operation,
GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,
NULL, error);
if (result == GTK_PRINT_OPERATION_RESULT_APPLY ||
result == GTK_PRINT_OPERATION_RESULT_IN_PROGRESS)
{
print_page_setup_save (operation, image);
}
}
else
{
result = gtk_print_operation_run (operation,
GTK_PRINT_OPERATION_ACTION_PRINT,
NULL, error);
}
#ifndef EMBED_PAGE_SETUP
pika_plug_in_remove_temp_procedure (pika_get_plug_in (), temp_proc);
g_free (temp_proc);
print_operation = NULL;
#endif
g_object_unref (operation);
if (pika_item_is_valid (PIKA_ITEM (layer)))
pika_item_delete (PIKA_ITEM (layer));
switch (result)
{
case GTK_PRINT_OPERATION_RESULT_APPLY:
case GTK_PRINT_OPERATION_RESULT_IN_PROGRESS:
return PIKA_PDB_SUCCESS;
case GTK_PRINT_OPERATION_RESULT_CANCEL:
return PIKA_PDB_CANCEL;
case GTK_PRINT_OPERATION_RESULT_ERROR:
return PIKA_PDB_EXECUTION_ERROR;
}
return PIKA_PDB_EXECUTION_ERROR;
}
#ifndef EMBED_PAGE_SETUP
static PikaPDBStatusType
page_setup (PikaImage *image)
{
GtkPrintOperation *operation;
PikaProcedure *procedure;
PikaValueArray *return_vals;
gchar *name;
pika_ui_init (PLUG_IN_BINARY);
operation = gtk_print_operation_new ();
print_page_setup_load (operation, image);
print_page_setup_dialog (operation);
print_page_setup_save (operation, image);
g_object_unref (operation);
/* now notify a running print procedure about this change */
name = print_temp_proc_name (image);
/* we don't want the core to show an error message if the
* temporary procedure does not exist
*/
pika_plug_in_set_pdb_error_handler (pika_get_plug_in (),
PIKA_PDB_ERROR_HANDLER_PLUGIN);
procedure = pika_pdb_lookup_procedure (pika_get_pdb (), name);
return_vals = pika_procedure_run (procedure, "image", image, NULL);
pika_value_array_unref (return_vals);
g_free (name);
return PIKA_PDB_SUCCESS;
}
#endif
static void
print_show_error (const gchar *message)
{
GtkWidget *dialog;
dialog = gtk_message_dialog_new (NULL, 0,
GTK_MESSAGE_ERROR,
GTK_BUTTONS_OK,
"%s",
_("An error occurred while trying to print:"));
gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog),
"%s", message);
gtk_dialog_run (GTK_DIALOG (dialog));
gtk_widget_destroy (dialog);
}
static void
print_operation_set_name (GtkPrintOperation *operation,
PikaImage *image)
{
gchar *name = pika_image_get_name (image);
gtk_print_operation_set_job_name (operation, name);
g_free (name);
}
static void
begin_print (GtkPrintOperation *operation,
GtkPrintContext *context,
PrintData *data)
{
gtk_print_operation_set_use_full_page (operation, data->use_full_page);
pika_progress_init (_("Printing"));
}
static void
end_print (GtkPrintOperation *operation,
GtkPrintContext *context,
PikaLayer **layer)
{
/* we don't need the print layer any longer, delete it */
if (pika_item_is_valid (PIKA_ITEM (*layer)))
{
pika_item_delete (PIKA_ITEM (*layer));
*layer = NULL;
}
pika_progress_end ();
/* generate events to solve the problems described in bug #466928 */
g_timeout_add_seconds (1, (GSourceFunc) gtk_true, NULL);
}
static void
draw_page (GtkPrintOperation *operation,
GtkPrintContext *context,
gint page_nr,
PrintData *data)
{
GError *error = NULL;
if (print_draw_page (context, data, &error))
{
pika_progress_update (1.0);
}
else
{
print_show_error (error->message);
g_error_free (error);
}
}
/*
* This callback creates a "custom" widget that gets inserted into the
* print operation dialog.
*/
static GtkWidget *
create_custom_widget (GtkPrintOperation *operation,
PrintData *data)
{
return print_page_layout_gui (data, PRINT_PROC_NAME);
}
#ifndef EMBED_PAGE_SETUP
static PikaValueArray *
print_temp_proc_run (PikaProcedure *procedure,
PikaProcedureConfig *config,
gpointer run_data)
{
PikaImage *image;
g_object_get (config, "image", &image, NULL);
if (print_operation)
print_page_setup_load (print_operation, image);
g_object_unref (image);
return pika_procedure_new_return_values (procedure, PIKA_PDB_SUCCESS, NULL);
}
static gchar *
print_temp_proc_name (PikaImage *image)
{
return g_strdup_printf (PRINT_TEMP_PROC_NAME "-%d",
pika_image_get_id (image));
}
static gchar *
print_temp_proc_install (PikaImage *image)
{
PikaPlugIn *plug_in = pika_get_plug_in ();
gchar *name = print_temp_proc_name (image);
PikaProcedure *procedure;
procedure = pika_procedure_new (plug_in, name,
PIKA_PDB_PROC_TYPE_TEMPORARY,
print_temp_proc_run, NULL, NULL);
pika_procedure_set_documentation (procedure,
"DON'T USE THIS ONE",
"Temporary procedure to notify the "
"Print plug-in about changes to the "
"Page Setup.",
NULL);
pika_procedure_set_attribution (procedure,
"Sven Neumann",
"Sven Neumann",
"2008");
PIKA_PROC_ARG_IMAGE (procedure, "image",
"Image",
"The image to notify about",
FALSE,
G_PARAM_READWRITE);
pika_plug_in_add_temp_procedure (plug_in, procedure);
g_object_unref (procedure);
return name;
}
#endif
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