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gimp/plug-ins/print/print-page-layout.c

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/* GIMP - The GNU Image Manipulation Program
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <libgimp/gimp.h>
#include <libgimp/gimpui.h>
#include "print.h"
#include "print-page-layout.h"
#include "libgimp/stdplugins-intl.h"
typedef struct
{
PrintData *data;
gint image_width;
gint image_height;
GimpSizeEntry *size_entry;
GimpSizeEntry *resolution_entry;
GimpChainButton *chain;
GtkWidget *area_label;
} PrintSizeInfo;
static void run_page_setup_dialog (GtkWidget *widget,
PrintData *data);
static GtkWidget * print_size_frame (PrintData *data);
static void print_size_info_size_changed (GtkWidget *widget);
static void print_size_info_resolution_changed (GtkWidget *widget);
static void print_size_info_unit_changed (GtkWidget *widget);
static void print_size_info_chain_toggled (GtkWidget *widget);
static void print_size_info_set_size (PrintSizeInfo *info,
gdouble width,
gdouble height);
static void print_size_info_set_resolution (PrintSizeInfo *info,
gdouble xres,
gdouble yres);
static void print_size_info_set_page_setup (PrintSizeInfo *info);
static PrintSizeInfo info;
GtkWidget *
print_page_layout_gui (PrintData *data)
{
GtkWidget *main_vbox;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *label;
GtkWidget *frame;
memset (&info, 0, sizeof (PrintSizeInfo));
info.data = data;
info.image_width = gimp_image_width (data->image_id);
info.image_height = gimp_image_height (data->image_id);
main_vbox = gtk_vbox_new (FALSE, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = gtk_button_new_with_mnemonic (_("_Adjust Page Size "
"and Orientation"));
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (run_page_setup_dialog),
data);
gtk_widget_show (button);
#if 0
/* Commented out until the header becomes a little more configurable
* and we can provide a user interface to include/exclude information.
*/
button = gtk_check_button_new_with_label ("Print image header");
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button),
data->show_info_header);
gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
g_signal_connect (G_OBJECT (button), "toggled",
G_CALLBACK (gimp_toggle_button_update),
&data->show_info_header);
gtk_widget_show (button);
#endif
/* label for the printable area */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new (_("Printable area:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
label = gtk_label_new (NULL);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.0);
gimp_label_set_attributes (GTK_LABEL (label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
info.area_label = label;
gtk_box_pack_start (GTK_BOX (hbox), info.area_label, FALSE, FALSE, 0);
gtk_widget_show (info.area_label);
/* size entry area for the image's print size */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (main_vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
frame = print_size_frame (data);
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
print_size_info_set_page_setup (&info);
return main_vbox;
}
static void
run_page_setup_dialog (GtkWidget *widget,
PrintData *data)
{
GtkPrintOperation *operation;
GtkPrintSettings *settings;
GtkPageSetup *page_setup;
GtkWidget *toplevel;
operation = data->operation;
/* find a transient parent if possible */
toplevel = gtk_widget_get_toplevel (widget);
if (! GTK_WIDGET_TOPLEVEL (toplevel))
toplevel = NULL;
settings = gtk_print_operation_get_print_settings (operation);
if (! settings)
settings = gtk_print_settings_new ();
page_setup = gtk_print_operation_get_default_page_setup (operation);
page_setup = gtk_print_run_page_setup_dialog (GTK_WINDOW (toplevel),
page_setup, settings);
gtk_print_operation_set_default_page_setup (operation, page_setup);
print_size_info_set_page_setup (&info);
}
#define SB_WIDTH 8
static GtkWidget *
print_size_frame (PrintData *data)
{
GtkWidget *entry;
GtkWidget *height;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *chain;
GtkWidget *frame;
GtkWidget *label;
GtkSizeGroup *label_group;
GtkSizeGroup *entry_group;
GtkObject *adj;
gdouble image_width;
gdouble image_height;
image_width = (info.image_width *
gimp_unit_get_factor (data->unit) / data->xres);
image_height = (info.image_height *
gimp_unit_get_factor (data->unit) / data->yres);
frame = gimp_frame_new (_("Image Size"));
vbox = gtk_vbox_new (FALSE, 12);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
label_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
entry_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
/* the print size entry */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
entry = gimp_size_entry_new (1, data->unit, "%p",
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_NONE);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
info.size_entry = GIMP_SIZE_ENTRY (entry);
gtk_table_set_row_spacings (GTK_TABLE (entry), 2);
gtk_table_set_col_spacing (GTK_TABLE (entry), 0, 6);
gtk_table_set_col_spacing (GTK_TABLE (entry), 2, 6);
height = gimp_spin_button_new (&adj, 1, 1, 1, 1, 10, 0, 1, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (height), NULL);
gtk_table_attach_defaults (GTK_TABLE (entry), height, 1, 2, 0, 1);
gtk_widget_show (height);
gtk_size_group_add_widget (entry_group, height);
g_object_unref (entry_group);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_Width:"), 0, 0, 0.0);
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_Height:"), 1, 0, 0.0);
gtk_size_group_add_widget (label_group, label);
g_object_unref (label_group);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (entry), 0,
data->xres, FALSE);
gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (entry), 1,
data->yres, FALSE);
gimp_size_entry_set_value (GIMP_SIZE_ENTRY (entry), 0, image_width);
gimp_size_entry_set_value (GIMP_SIZE_ENTRY (entry), 1, image_height);
/* the resolution entry */
hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
entry = gimp_size_entry_new (1, gimp_image_get_unit (data->image_id),
_("pixels/%a"),
FALSE, FALSE, FALSE, SB_WIDTH,
GIMP_SIZE_ENTRY_UPDATE_RESOLUTION);
gtk_box_pack_start (GTK_BOX (hbox), entry, FALSE, FALSE, 0);
gtk_widget_show (entry);
info.resolution_entry = GIMP_SIZE_ENTRY (entry);
gtk_table_set_row_spacings (GTK_TABLE (entry), 2);
gtk_table_set_col_spacing (GTK_TABLE (entry), 0, 6);
gtk_table_set_col_spacing (GTK_TABLE (entry), 2, 6);
height = gimp_spin_button_new (&adj, 1, 1, 1, 1, 10, 0, 1, 2);
gimp_size_entry_add_field (GIMP_SIZE_ENTRY (entry),
GTK_SPIN_BUTTON (height), NULL);
gtk_table_attach_defaults (GTK_TABLE (entry), height, 1, 2, 0, 1);
gtk_widget_show (height);
gtk_size_group_add_widget (entry_group, height);
gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_X resolution:"), 0, 0, 0.0);
label = gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (entry),
_("_Y resolution:"), 1, 0, 0.0);
gtk_size_group_add_widget (label_group, label);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (entry), 0,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (entry), 1,
GIMP_MIN_RESOLUTION,
GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 0, data->xres);
gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (entry), 1, data->yres);
chain = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chain), TRUE);
gtk_table_attach (GTK_TABLE (entry), chain, 2, 3, 0, 2,
GTK_SHRINK | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
gtk_widget_show (chain);
info.chain = GIMP_CHAIN_BUTTON (chain);
g_signal_connect (info.size_entry, "value-changed",
G_CALLBACK (print_size_info_size_changed),
NULL);
g_signal_connect (info.resolution_entry, "value-changed",
G_CALLBACK (print_size_info_resolution_changed),
NULL);
g_signal_connect (info.size_entry, "unit-changed",
G_CALLBACK (print_size_info_unit_changed),
NULL);
g_signal_connect (info.chain, "toggled",
G_CALLBACK (print_size_info_chain_toggled),
NULL);
return frame;
}
static void
print_size_info_size_changed (GtkWidget *widget)
{
gdouble width;
gdouble height;
gdouble xres;
gdouble yres;
gdouble scale;
scale = gimp_unit_get_factor (gimp_size_entry_get_unit (info.size_entry));
width = gimp_size_entry_get_value (info.size_entry, 0);
height = gimp_size_entry_get_value (info.size_entry, 1);
xres = scale * info.image_width / MAX (0.0001, width);
yres = scale * info.image_height / MAX (0.0001, height);
print_size_info_set_resolution (&info, xres, yres);
}
static void
print_size_info_resolution_changed (GtkWidget *widget)
{
GimpSizeEntry *entry = info.resolution_entry;
gdouble xres = gimp_size_entry_get_refval (entry, 0);
gdouble yres = gimp_size_entry_get_refval (entry, 1);
print_size_info_set_resolution (&info, xres, yres);
}
static void
print_size_info_unit_changed (GtkWidget *widget)
{
PrintData *data = info.data;
GimpSizeEntry *entry = info.size_entry;
gdouble factor = gimp_unit_get_factor (data->unit);
gdouble w, h;
data->unit = gimp_size_entry_get_unit (entry);
factor = gimp_unit_get_factor (data->unit) / factor;
w = gimp_size_entry_get_value (entry, 0) * factor;
h = gimp_size_entry_get_value (entry, 1) * factor;
print_size_info_set_page_setup (&info);
print_size_info_set_size (&info, w, h);
}
static void
print_size_info_chain_toggled (GtkWidget *widget)
{
print_size_info_set_page_setup (&info);
}
static void
print_size_info_set_size (PrintSizeInfo *info,
gdouble width,
gdouble height)
{
g_signal_handlers_block_by_func (info->size_entry,
print_size_info_size_changed,
NULL);
gimp_size_entry_set_value (info->size_entry, 0, width);
gimp_size_entry_set_value (info->size_entry, 1, height);
g_signal_handlers_unblock_by_func (info->size_entry,
print_size_info_size_changed,
NULL);
}
static void
print_size_info_set_resolution (PrintSizeInfo *info,
gdouble xres,
gdouble yres)
{
PrintData *data = info->data;
xres = CLAMP (xres, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
yres = CLAMP (yres, GIMP_MIN_RESOLUTION, GIMP_MAX_RESOLUTION);
if (info->chain && gimp_chain_button_get_active (info->chain))
{
if (xres != data->xres)
yres = xres;
else
xres = yres;
}
data->xres = xres;
data->yres = yres;
g_signal_handlers_block_by_func (info->resolution_entry,
print_size_info_resolution_changed,
NULL);
gimp_size_entry_set_refval (info->resolution_entry, 0, xres);
gimp_size_entry_set_refval (info->resolution_entry, 1, yres);
g_signal_handlers_unblock_by_func (info->resolution_entry,
print_size_info_resolution_changed,
NULL);
g_signal_handlers_block_by_func (info->size_entry,
print_size_info_size_changed,
NULL);
gimp_size_entry_set_value (info->size_entry, 0,
info->image_width *
gimp_unit_get_factor (data->unit) / xres);
gimp_size_entry_set_value (info->size_entry, 1,
info->image_height *
gimp_unit_get_factor (data->unit) / yres);
g_signal_handlers_unblock_by_func (info->size_entry,
print_size_info_size_changed,
NULL);
}
static void
print_size_info_set_page_setup (PrintSizeInfo *info)
{
GtkPageSetup *setup;
PrintData *data = info->data;
gchar *format;
gchar *text;
gdouble page_width;
gdouble page_height;
gdouble x;
gdouble y;
setup = gtk_print_operation_get_default_page_setup (data->operation);
if (! setup)
{
setup = gtk_page_setup_new ();
gtk_print_operation_set_default_page_setup (data->operation, setup);
}
page_width = (gtk_page_setup_get_page_width (setup, GTK_UNIT_INCH) *
gimp_unit_get_factor (data->unit));
page_height = (gtk_page_setup_get_page_height (setup, GTK_UNIT_INCH) *
gimp_unit_get_factor (data->unit));
format = g_strdup_printf ("%%.%df x %%.%df %s",
gimp_unit_get_digits (data->unit),
gimp_unit_get_digits (data->unit),
gimp_unit_get_plural (data->unit));
text = g_strdup_printf (format, page_width, page_height);
g_free (format);
gtk_label_set_text (GTK_LABEL (info->area_label), text);
g_free (text);
x = page_width;
y = page_height;
if (info->chain && gimp_chain_button_get_active (info->chain))
{
gdouble ratio;
ratio = (gdouble) info->image_width / (gdouble) info->image_height;
if (ratio < 1.0)
x = y * ratio;
else
y = x / ratio;
}
gimp_size_entry_set_value_boundaries (info->size_entry, 0, 0.0, x);
gimp_size_entry_set_value_boundaries (info->size_entry, 1, 0.0, y);
x = info->image_width / page_width;
y = info->image_height / page_height;
if (info->chain && gimp_chain_button_get_active (info->chain))
{
gdouble max = MAX (x, y);
x = y = max;
}
gimp_size_entry_set_refval_boundaries (info->resolution_entry, 0,
x, GIMP_MAX_RESOLUTION);
gimp_size_entry_set_refval_boundaries (info->resolution_entry, 1,
y, GIMP_MAX_RESOLUTION);
/* FIXME: is this still needed at all? */
data->orientation = gtk_page_setup_get_orientation (setup);
}
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