mirror
/
sane-project-frontends
kopia lustrzana https://gitlab.com/sane-project/frontends
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność
sane-project-frontends/src/gtkglue.c

1514 wiersze
40 KiB
C
Czysty Bezpośredni odnośnik Wina Historia

/* gtk/SANE-glue -- gtk interfacing routines for SANE
Uses the SANE library.
Copyright (C) 1997 David Mosberger and Tristan Tarrant
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., 675 Mass Ave, Cambridge, MA 02139, USA. */
#ifdef _AIX
# include "../include/lalloca.h" /* MUST come first for AIX! */
#endif
#include "../include/sane/config.h"
#include "../include/lalloca.h"
#include <assert.h>
#include <errno.h>
#include <memory.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h> /* Apollo/DomainOS needs this _before_ sys/stat.h */
#include <sys/stat.h>
#include "gtkglue.h"
#include "preferences.h"
#include <sane/sane.h>
#include <sane/saneopts.h>
#define DBG_fatal 0
#define DBG_error 1
#define DBG_warning 2
#define DBG_info 3
#define DBG_debug 4
#define BACKEND_NAME gtkglue
#include "../include/sane/sanei_debug.h"
int gsg_message_dialog_active = 0;
/* forward declarations: */
static void panel_rebuild (GSGDialog * dialog);
static const char *
unit_string (SANE_Unit unit)
{
double d;
switch (unit)
{
case SANE_UNIT_NONE:
return "none";
case SANE_UNIT_PIXEL:
return "pixel";
case SANE_UNIT_BIT:
return "bit";
case SANE_UNIT_DPI:
return "dpi";
case SANE_UNIT_PERCENT:
return "%";
case SANE_UNIT_MM:
d = preferences.length_unit;
if (d > 9.9 && d < 10.1)
return "cm";
else if (d > 25.3 && d < 25.5)
return "in";
return "mm";
case SANE_UNIT_MICROSECOND:
return "us";
}
return 0;
}
static void
set_tooltip (GtkTooltips * tooltips, GtkWidget * widget, const char *desc)
{
if (desc && desc[0])
#ifdef HAVE_GTK_TOOLTIPS_SET_TIPS
/* pre 0.99.4: */
gtk_tooltips_set_tips (tooltips, widget, (char *) desc);
#else
gtk_tooltips_set_tip (tooltips, widget, desc, 0);
#endif
}
int
gsg_make_path (size_t buf_size, char *buf,
const char *prog_name,
const char *prefix, const char *dev_name, const char *postfix)
{
struct passwd *pw;
size_t len, extra;
int i;
/* first, make sure ~/.sane exists: */
pw = getpwuid (getuid ());
if (!pw)
{
snprintf (buf, buf_size, "Failed to determine home directory: %s.",
strerror (errno));
gsg_error (buf);
return -1;
}
snprintf (buf, buf_size, "%s/.sane", pw->pw_dir);
mkdir (buf, 0777); /* ensure ~/.sane directory exists */
len = strlen (buf);
if (prog_name)
{
extra = strlen (prog_name);
if (len + extra + 1 >= buf_size)
goto filename_too_long;
buf[len++] = '/';
memcpy (buf + len, prog_name, extra);
len += extra;
buf[len] = '\0';
mkdir (buf, 0777); /* ensure ~/.sane/PROG_NAME directory exists */
}
if (len >= buf_size)
goto filename_too_long;
buf[len++] = '/';
if (prefix)
{
extra = strlen (prefix);
if (len + extra >= buf_size)
goto filename_too_long;
memcpy (buf + len, prefix, extra);
len += extra;
}
if (dev_name)
{
/* Turn devicename into valid filename by replacing slashes by
"+-". A lonely `+' gets translated into "++" so we can tell
it from a substituted slash. */
for (i = 0; dev_name[i]; ++i)
{
if (len + 2 >= buf_size)
goto filename_too_long;
switch (dev_name[i])
{
case '/':
buf[len++] = '+';
buf[len++] = '-';
break;
#ifdef HAVE_OS2_H
case ':': /* OS2 can not handle colons in filenames */
buf[len++] = '+';
buf[len++] = '_';
break;
#endif
case '+':
buf[len++] = '+';
default:
buf[len++] = dev_name[i];
break;
}
}
}
if (postfix)
{
extra = strlen (postfix);
if (len + extra >= buf_size)
goto filename_too_long;
memcpy (buf + len, postfix, extra);
len += extra;
}
if (len >= buf_size)
goto filename_too_long;
buf[len++] = '\0';
return 0;
filename_too_long:
gsg_error ("Filename too long.");
errno = E2BIG;
return -1;
}
static void
set_option (GSGDialog * dialog, int opt_num, void *val, SANE_Action action)
{
SANE_Status status;
SANE_Int info;
char buf[256];
status = sane_control_option (dialog->dev, opt_num, action, val, &info);
if (status != SANE_STATUS_GOOD)
{
snprintf (buf, sizeof (buf), "Failed to set value of option %s: %s.",
sane_get_option_descriptor (dialog->dev, opt_num)->name,
sane_strstatus (status));
gsg_error (buf);
return;
}
if (info & SANE_INFO_RELOAD_OPTIONS)
{
panel_rebuild (dialog);
if (dialog->option_reload_callback)
(*dialog->option_reload_callback) (dialog, dialog->option_reload_arg);
}
if ((info & SANE_INFO_RELOAD_PARAMS) && dialog->param_change_callback)
(*dialog->param_change_callback) (dialog, dialog->param_change_arg);
}
void
gsg_close_dialog_callback (GtkWidget * widget, gpointer data)
{
gtk_widget_destroy (data);
gsg_message_dialog_active = 0;
}
void
gsg_message (gchar * title, gchar * message)
{
GtkWidget *main_vbox, *label;
GtkWidget *button, *message_dialog;
if (gsg_message_dialog_active)
{
fprintf (stderr, "%s: %s\n", title, message);
return;
}
gsg_message_dialog_active = 1;
message_dialog = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_position (GTK_WINDOW (message_dialog), GTK_WIN_POS_MOUSE);
gtk_window_set_title (GTK_WINDOW (message_dialog), title);
/* create the main vbox */
main_vbox = gtk_vbox_new (TRUE, 5);
gtk_container_border_width (GTK_CONTAINER (main_vbox), 5);
gtk_widget_show (main_vbox);
gtk_container_add (GTK_CONTAINER (message_dialog), main_vbox);
/* the message */
label = gtk_label_new (message);
gtk_container_add (GTK_CONTAINER (main_vbox), label);
gtk_widget_show (label);
/* the confirmation button */
button = gtk_button_new_with_label ("OK");
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) gsg_close_dialog_callback,
message_dialog);
gtk_container_add (GTK_CONTAINER (main_vbox), button);
gtk_widget_show (button);
gtk_widget_show (message_dialog);
}
void
gsg_error (gchar * error)
{
gsg_message ("Error", error);
}
void
gsg_warning (gchar * warning)
{
gsg_message ("Warning", warning);
}
static void
get_filename_button_clicked (GtkWidget * w, gpointer data)
{
int *clicked = data;
*clicked = 1;
}
int
gsg_get_filename (const char *label, const char *default_name,
size_t max_len, char *filename)
{
int cancel = 0, ok = 0;
GtkWidget *filesel;
filesel = gtk_file_selection_new ((char *) label);
gtk_window_set_modal (GTK_WINDOW (filesel), TRUE);
gtk_signal_connect (GTK_OBJECT
(GTK_FILE_SELECTION (filesel)->cancel_button),
"clicked", (GtkSignalFunc) get_filename_button_clicked,
&cancel);
gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION (filesel)->ok_button),
"clicked", (GtkSignalFunc) get_filename_button_clicked,
&ok);
if (default_name)
gtk_file_selection_set_filename (GTK_FILE_SELECTION (filesel),
(char *) default_name);
gtk_widget_show (filesel);
while (!cancel && !ok)
{
if (!gtk_events_pending ())
usleep (100000);
gtk_main_iteration ();
}
if (ok)
{
size_t len, cwd_len;
char *cwd;
strncpy (filename,
gtk_file_selection_get_filename (GTK_FILE_SELECTION (filesel)),
max_len - 1);
filename[max_len - 1] = '\0';
len = strlen (filename);
cwd = alloca (len + 2);
getcwd (cwd, len + 1);
cwd_len = strlen (cwd);
cwd[cwd_len++] = '/';
cwd[cwd_len] = '\0';
if (strncmp (filename, cwd, cwd_len) == 0)
memcpy (filename, filename + cwd_len, len - cwd_len + 1);
}
gtk_widget_destroy (filesel);
return cancel ? -1 : 0;
}
static gint
autobutton_update (GtkWidget * widget, GSGDialogElement * elem)
{
GSGDialog *dialog = elem->dialog;
int opt_num = elem - dialog->element;
const SANE_Option_Descriptor *opt;
SANE_Status status;
SANE_Word val;
char buf[256];
opt = sane_get_option_descriptor (dialog->dev, opt_num);
if (GTK_TOGGLE_BUTTON (widget)->active)
set_option (dialog, opt_num, 0, SANE_ACTION_SET_AUTO);
else
{
status = sane_control_option (dialog->dev, opt_num,
SANE_ACTION_GET_VALUE, &val, 0);
if (status != SANE_STATUS_GOOD)
{
snprintf (buf, sizeof (buf),
"Failed to obtain value of option %s: %s.",
opt->name, sane_strstatus (status));
gsg_error (buf);
}
set_option (dialog, opt_num, &val, SANE_ACTION_SET_VALUE);
}
return FALSE;
}
static void
autobutton_new (GtkWidget * parent, GSGDialogElement * elem,
GtkWidget * label, GtkTooltips * tooltips)
{
GtkWidget *button, *alignment;
button = gtk_check_button_new ();
gtk_container_border_width (GTK_CONTAINER (button), 0);
gtk_widget_set_usize (button, 20, 20);
gtk_signal_connect (GTK_OBJECT (button), "toggled",
(GtkSignalFunc) autobutton_update, elem);
set_tooltip (tooltips, button, "Turns on automatic mode.");
alignment = gtk_alignment_new (0.0, 1.0, 0.5, 0.5);
gtk_container_add (GTK_CONTAINER (alignment), button);
gtk_box_pack_end (GTK_BOX (parent), label, FALSE, FALSE, 0);
gtk_box_pack_end (GTK_BOX (parent), alignment, FALSE, FALSE, 2);
gtk_widget_show (alignment);
gtk_widget_show (button);
}
static gint
button_update (GtkWidget * widget, GSGDialogElement * elem)
{
GSGDialog *dialog = elem->dialog;
int opt_num = elem - dialog->element;
// const SANE_Option_Descriptor *opt;
SANE_Word val = SANE_FALSE;
// opt = sane_get_option_descriptor (dialog->dev, opt_num);
if (GTK_TOGGLE_BUTTON (widget)->active)
val = SANE_TRUE;
set_option (dialog, opt_num, &val, SANE_ACTION_SET_VALUE);
return FALSE;
}
static void
button_new (GtkWidget * parent, const char *name, SANE_Word val,
GSGDialogElement * elem, GtkTooltips * tooltips, const char *desc,
gint is_settable)
{
GtkWidget *button;
button = gtk_check_button_new_with_label ((char *) name);
gtk_toggle_button_set_state (GTK_TOGGLE_BUTTON (button), val);
gtk_signal_connect (GTK_OBJECT (button), "toggled",
(GtkSignalFunc) button_update, elem);
gtk_box_pack_start (GTK_BOX (parent), button, FALSE, TRUE, 0);
if (!is_settable)
gtk_widget_set_sensitive (GTK_WIDGET (button), FALSE);
gtk_widget_show (button);
set_tooltip (tooltips, button, desc);
elem->widget = button;
}
static void
scale_update (GtkAdjustment * adj_data, GSGDialogElement * elem)
{
const SANE_Option_Descriptor *opt;
GSGDialog *dialog = elem->dialog;
SANE_Word val, new_val;
int opt_num;
double d;
SANE_Status status;
DBG_INIT ();
DBG (DBG_debug, "scale_update\n");
opt_num = elem - dialog->element;
opt = sane_get_option_descriptor (dialog->dev, opt_num);
switch (opt->type)
{
case SANE_TYPE_INT:
val = adj_data->value + 0.5;
break;
case SANE_TYPE_FIXED:
d = adj_data->value;
if (opt->unit == SANE_UNIT_MM)
d *= preferences.length_unit;
val = SANE_FIX (d);
break;
default:
fprintf (stderr, "scale_update: unknown type %d\n", opt->type);
return;
}
set_option (dialog, opt_num, &val, SANE_ACTION_SET_VALUE);
status =
sane_control_option (dialog->dev, opt_num, SANE_ACTION_GET_VALUE,
&new_val, 0);
if (status != SANE_STATUS_GOOD)
{
DBG (DBG_fatal, "scale_update: sane_control_option failed: %s\n",
sane_strstatus (status));
return;
}
if (new_val != val)
{
val = new_val;
goto value_changed;
}
return; /* value didn't change */
value_changed:
switch (opt->type)
{
case SANE_TYPE_INT:
adj_data->value = val;
break;
case SANE_TYPE_FIXED:
d = SANE_UNFIX (val);
if (opt->unit == SANE_UNIT_MM)
d /= preferences.length_unit;
adj_data->value = d;
break;
default:
break;
}
/* Let widget know that value changed _again_. This must converge
quickly---otherwise things would get very slow very quickly (as
in "infinite recursion"): */
gtk_signal_emit_by_name (GTK_OBJECT (adj_data), "value_changed");
return;
}
static void
scale_new (GtkWidget * parent, const char *name, gfloat val,
gfloat min, gfloat max, gfloat quant, int automatic,
GSGDialogElement * elem, GtkTooltips * tooltips, const char *desc,
gint is_settable)
{
GtkWidget *hbox, *label, *scale;
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_border_width (GTK_CONTAINER (hbox), 0);
gtk_box_pack_start (GTK_BOX (parent), hbox, FALSE, FALSE, 0);
label = gtk_label_new ((char *) name);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 2);
elem->data = gtk_adjustment_new (val, min, max, quant, 1.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (elem->data));
set_tooltip (tooltips, scale, desc);
gtk_widget_set_usize (scale, 200, 0);
if (automatic)
autobutton_new (hbox, elem, scale, tooltips);
else
gtk_box_pack_end (GTK_BOX (hbox), scale, FALSE, FALSE, 0);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_CONTINUOUS);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
if (quant - (int) quant == 0.0)
gtk_scale_set_digits (GTK_SCALE (scale), 0);
else
/* one place behind decimal point */
gtk_scale_set_digits (GTK_SCALE (scale), 1);
gtk_signal_connect (elem->data, "value_changed",
(GtkSignalFunc) scale_update, elem);
gtk_widget_show (label);
gtk_widget_show (scale);
if (!is_settable)
gtk_widget_set_sensitive (GTK_WIDGET (hbox), FALSE);
gtk_widget_show (hbox);
elem->widget = scale;
}
static void
push_button_callback (GtkWidget * widget, gpointer data)
{
GSGDialogElement *elem = data;
GSGDialog *dialog = elem->dialog;
int opt_num;
opt_num = elem - dialog->element;
set_option (dialog, opt_num, 0, SANE_ACTION_SET_VALUE);
}
static int
option_menu_lookup (GSGMenuItem menu_items[], const char *string)
{
int i;
for (i = 0; strcmp (menu_items[i].label, string) != 0; ++i);
return i;
}
static void
option_menu_callback (GtkWidget * widget, gpointer data)
{
GSGMenuItem *menu_item = data;
GSGDialogElement *elem = menu_item->elem;
const SANE_Option_Descriptor *opt;
GSGDialog *dialog = elem->dialog;
int opt_num;
double dval;
SANE_Word val;
void *valp = &val;
opt_num = elem - dialog->element;
opt = sane_get_option_descriptor (dialog->dev, opt_num);
switch (opt->type)
{
case SANE_TYPE_INT:
sscanf (menu_item->label, "%d", &val);
break;
case SANE_TYPE_FIXED:
sscanf (menu_item->label, "%lg", &dval);
val = SANE_FIX (dval);
break;
case SANE_TYPE_STRING:
valp = menu_item->label;
break;
default:
fprintf (stderr, "option_menu_callback: unexpected type %d\n",
opt->type);
break;
}
set_option (dialog, opt_num, valp, SANE_ACTION_SET_VALUE);
}
static void
option_menu_new (GtkWidget * parent, const char *name, char *str_list[],
const char *val, GSGDialogElement * elem,
GtkTooltips * tooltips, const char *desc, gint is_settable)
{
GtkWidget *hbox, *label, *option_menu, *menu, *item;
GSGMenuItem *menu_items;
int i, num_items;
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_border_width (GTK_CONTAINER (hbox), 0);
gtk_box_pack_start (GTK_BOX (parent), hbox, FALSE, FALSE, 0);
label = gtk_label_new ((char *) name);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 2);
for (num_items = 0; str_list[num_items]; ++num_items);
menu_items = malloc (num_items * sizeof (menu_items[0]));
menu = gtk_menu_new ();
for (i = 0; i < num_items; ++i)
{
item = gtk_menu_item_new_with_label (str_list[i]);
gtk_container_add (GTK_CONTAINER (menu), item);
gtk_signal_connect (GTK_OBJECT (item), "activate",
(GtkSignalFunc) option_menu_callback,
menu_items + i);
gtk_widget_show (item);
menu_items[i].label = str_list[i];
menu_items[i].elem = elem;
menu_items[i].index = i;
}
option_menu = gtk_option_menu_new ();
gtk_box_pack_end (GTK_BOX (hbox), option_menu, FALSE, FALSE, 2);
gtk_option_menu_set_menu (GTK_OPTION_MENU (option_menu), menu);
gtk_option_menu_set_history (GTK_OPTION_MENU (option_menu),
option_menu_lookup (menu_items, val));
set_tooltip (tooltips, option_menu, desc);
gtk_widget_show (label);
gtk_widget_show (option_menu);
if (!is_settable)
gtk_widget_set_sensitive (GTK_WIDGET (hbox), FALSE);
gtk_widget_show (hbox);
elem->widget = option_menu;
elem->menu_size = num_items;
elem->menu = menu_items;
}
static void
text_entry_callback (GtkWidget * w, gpointer data)
{
GSGDialogElement *elem = data;
const SANE_Option_Descriptor *opt;
GSGDialog *dialog = elem->dialog;
const gchar *text;
int opt_num;
char *buf;
opt_num = elem - dialog->element;
opt = sane_get_option_descriptor (dialog->dev, opt_num);
buf = alloca (opt->size);
buf[0] = '\0';
text = gtk_entry_get_text (GTK_ENTRY (elem->widget));
if (text)
strncpy (buf, text, opt->size);
buf[opt->size - 1] = '\0';
set_option (dialog, opt_num, buf, SANE_ACTION_SET_VALUE);
if (strcmp (buf, text) != 0)
/* the backend modified the option value; update widget: */
gtk_entry_set_text (GTK_ENTRY (elem->widget), buf);
}
static void
text_entry_new (GtkWidget * parent, const char *name, const char *val,
GSGDialogElement * elem,
GtkTooltips * tooltips, const char *desc, gint is_settable)
{
GtkWidget *hbox, *text, *label;
hbox = gtk_hbox_new (FALSE, 2);
gtk_container_border_width (GTK_CONTAINER (hbox), 0);
gtk_box_pack_start (GTK_BOX (parent), hbox, FALSE, FALSE, 0);
label = gtk_label_new ((char *) name);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 2);
text = gtk_entry_new ();
gtk_entry_set_text (GTK_ENTRY (text), (char *) val);
gtk_box_pack_start (GTK_BOX (hbox), text, FALSE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (text), "changed",
(GtkSignalFunc) text_entry_callback, elem);
set_tooltip (tooltips, text, desc);
gtk_widget_show (hbox);
if (!is_settable)
gtk_widget_set_sensitive (GTK_WIDGET (hbox), FALSE);
gtk_widget_show (label);
gtk_widget_show (text);
elem->widget = text;
}
static GtkWidget *
group_new (GtkWidget * parent, const char *title)
{
GtkWidget *frame, *vbox;
frame = gtk_frame_new ((char *) title);
gtk_container_border_width (GTK_CONTAINER (frame), 4);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_ETCHED_IN);
gtk_box_pack_start (GTK_BOX (parent), frame, FALSE, FALSE, 0);
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
return vbox;
}
static GtkWidget *
curve_new (GSGDialog * dialog, int optnum)
{
const SANE_Option_Descriptor *opt;
gfloat fmin, fmax, val, *vector;
SANE_Word *optval, min, max;
GtkWidget *curve, *gamma;
SANE_Status status;
SANE_Handle dev;
int i, optlen;
gamma = gtk_gamma_curve_new ();
curve = GTK_GAMMA_CURVE (gamma)->curve;
dev = dialog->dev;
opt = sane_get_option_descriptor (dev, optnum);
optlen = opt->size / sizeof (SANE_Word);
vector = alloca (optlen * (sizeof (vector[0]) + sizeof (optval[0])));
optval = (SANE_Word *) (vector + optlen);
min = max = 0;
switch (opt->constraint_type)
{
case SANE_CONSTRAINT_RANGE:
min = opt->constraint.range->min;
max = opt->constraint.range->max;
break;
case SANE_CONSTRAINT_WORD_LIST:
if (opt->constraint.word_list[0] > 1)
{
min = max = opt->constraint.word_list[1];
for (i = 2; i < opt->constraint.word_list[0]; ++i)
{
if (opt->constraint.word_list[i] < min)
min = opt->constraint.word_list[i];
if (opt->constraint.word_list[i] > max)
max = opt->constraint.word_list[i];
}
}
break;
default:
break;
}
if (min == max)
{
fprintf (stderr,
"curve_new: warning: option `%s' has no value constraint\n",
opt->name);
fmin = 0;
fmax = 255;
}
else if (opt->type == SANE_TYPE_FIXED)
{
fmin = SANE_UNFIX (min);
fmax = SANE_UNFIX (max);
}
else
{
fmin = min;
fmax = max;
}
gtk_curve_set_range (GTK_CURVE (curve), 0, optlen - 1, fmin, fmax);
status = sane_control_option (dev, optnum, SANE_ACTION_GET_VALUE,
optval, 0);
if (status == SANE_STATUS_GOOD)
{
for (i = 0; i < optlen; ++i)
{
if (opt->type == SANE_TYPE_FIXED)
val = SANE_UNFIX (optval[i]);
else
val = optval[i];
vector[i] = val;
}
gtk_curve_set_vector (GTK_CURVE (curve), optlen, vector);
}
else
gtk_widget_set_sensitive (gamma, FALSE);
return gamma;
}
static void
vector_new (GSGDialog * dialog, GtkWidget * vbox, int num_vopts, int *vopts)
{
GtkWidget *notebook, *label, *curve;
const SANE_Option_Descriptor *opt;
int i;
notebook = gtk_notebook_new ();
gtk_container_border_width (GTK_CONTAINER (notebook), 4);
gtk_box_pack_start (GTK_BOX (vbox), notebook, TRUE, TRUE, 0);
for (i = 0; i < num_vopts; ++i)
{
opt = sane_get_option_descriptor (dialog->dev, vopts[i]);
label = gtk_label_new ((char *) opt->title);
vbox = gtk_vbox_new ( /* homogeneous */ FALSE, 0);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook), vbox, label);
gtk_widget_show (vbox);
gtk_widget_show (label);
curve = curve_new (dialog, vopts[i]);
gtk_container_border_width (GTK_CONTAINER (curve), 4);
gtk_box_pack_start (GTK_BOX (vbox), curve, TRUE, TRUE, 0);
gtk_widget_show (curve);
dialog->element[vopts[i]].widget = curve;
}
gtk_widget_show (notebook);
}
static void
panel_destroy (GSGDialog * dialog)
{
const SANE_Option_Descriptor *opt;
GSGDialogElement *elem;
int i, j;
#ifdef HAVE_GTK_TOOLTIPS_SET_TIPS
/* pre 0.99.4: */
gtk_tooltips_unref (dialog->tooltips);
#else
# if GTK_MAJOR_VERSION == 2
gtk_object_sink (GTK_OBJECT (dialog->tooltips));
# else
gtk_object_unref (GTK_OBJECT (dialog->tooltips));
# endif /* GTK_MAJOR_VERSION == 2 */
#endif
gtk_widget_destroy (dialog->main_hbox);
/* free the menu labels of integer/fix-point word-lists: */
for (i = 0; i < dialog->num_elements; ++i)
{
if (dialog->element[i].menu)
{
opt = sane_get_option_descriptor (dialog->dev, i);
elem = dialog->element + i;
if (opt->type != SANE_TYPE_STRING)
for (j = 0; j < elem->menu_size; ++j)
if (elem->menu[j].label)
{
free (elem->menu[j].label);
elem->menu[j].label = 0;
}
free (elem->menu);
elem->menu = 0;
}
}
memset (dialog->element, 0,
dialog->num_elements * sizeof (dialog->element[0]));
}
static void
panel_build (GSGDialog * dialog)
{
GtkWidget *main_hbox, *standard_vbox, *advanced_vbox, *option_vbox;
GtkWidget *parent, *vbox, *button, *label;
const SANE_Option_Descriptor *opt;
SANE_Handle dev = dialog->dev;
double dval, dmin, dmax, dquant;
char *buf, str[16], title[256];
GSGDialogElement *elem;
SANE_Word quant, val;
SANE_Status status;
SANE_Int num_words;
char **str_list;
int i, j;
int num_vector_opts = 0, *vector_opts;
SANE_Bool val_in_list;
main_hbox = gtk_hbox_new (FALSE, 2);
if (dialog->twocolumn)
{
option_vbox = gtk_hbox_new (FALSE, 2); /* two column display */
}
else
{
option_vbox = gtk_vbox_new (FALSE, 2); /* one column display */
}
gtk_box_pack_start (GTK_BOX (main_hbox), option_vbox, FALSE, FALSE, 0);
gtk_widget_show (option_vbox);
/* standard options vbox */
standard_vbox = gtk_vbox_new ( /* homogeneous */ FALSE, 0);
gtk_widget_show (standard_vbox);
gtk_box_pack_start (GTK_BOX (option_vbox), standard_vbox, FALSE, FALSE, 0);
/* advanced options page */
advanced_vbox = gtk_vbox_new ( /* homogeneous */ FALSE, 0);
gtk_box_pack_start (GTK_BOX (option_vbox), advanced_vbox, TRUE, TRUE, 0);
/* use black as foreground: */
dialog->tooltips = gtk_tooltips_new ();
dialog->tooltips_fg.red = 0;
dialog->tooltips_fg.green = 0;
dialog->tooltips_fg.blue = 0;
/* postit yellow (khaki) as background: */
gdk_color_alloc (gtk_widget_get_colormap (main_hbox), &dialog->tooltips_fg);
dialog->tooltips_bg.red = 61669;
dialog->tooltips_bg.green = 59113;
dialog->tooltips_bg.blue = 35979;
gdk_color_alloc (gtk_widget_get_colormap (main_hbox), &dialog->tooltips_bg);
/* GTK2 doesn't have the function (seems like it's not needed with GTK2 anyway) */
#if GTK_MAJOR_VERSION < 2
gtk_tooltips_set_colors (dialog->tooltips,
&dialog->tooltips_bg, &dialog->tooltips_fg);
#endif /* GTK_MAJOR_VERSION < 2 */
gsg_set_tooltips (dialog, preferences.tooltips_enabled);
gtk_container_add (GTK_CONTAINER (dialog->window), main_hbox);
dialog->main_hbox = main_hbox;
dialog->advanced_vbox = advanced_vbox;
/* reset well-known options: */
dialog->well_known.preview = -1;
dialog->well_known.dpi = -1;
dialog->well_known.coord[GSG_TL_X] = -1;
dialog->well_known.coord[GSG_TL_Y] = -1;
dialog->well_known.coord[GSG_BR_X] = -1;
dialog->well_known.coord[GSG_BR_Y] = -1;
vector_opts = alloca (dialog->num_elements * sizeof (int));
parent = standard_vbox;
for (i = 1; i < dialog->num_elements; ++i)
{
opt = sane_get_option_descriptor (dev, i);
if (!SANE_OPTION_IS_ACTIVE (opt->cap))
continue;
/* pick up well-known options as we go: */
if (opt->name)
{
if (strcmp (opt->name, SANE_NAME_PREVIEW) == 0
&& opt->type == SANE_TYPE_BOOL)
{
dialog->well_known.preview = i;
continue;
}
else if (strcmp (opt->name, SANE_NAME_SCAN_RESOLUTION) == 0
&& opt->unit == SANE_UNIT_DPI
&& (opt->type == SANE_TYPE_INT
|| opt->type == SANE_TYPE_FIXED))
dialog->well_known.dpi = i;
else if (strcmp (opt->name, SANE_NAME_SCAN_TL_X) == 0)
dialog->well_known.coord[GSG_TL_X] = i;
else if (strcmp (opt->name, SANE_NAME_SCAN_TL_Y) == 0)
dialog->well_known.coord[GSG_TL_Y] = i;
else if (strcmp (opt->name, SANE_NAME_SCAN_BR_X) == 0)
dialog->well_known.coord[GSG_BR_X] = i;
else if (strcmp (opt->name, SANE_NAME_SCAN_BR_Y) == 0)
dialog->well_known.coord[GSG_BR_Y] = i;
}
elem = dialog->element + i;
elem->dialog = dialog;
if (opt->unit == SANE_UNIT_NONE)
strncpy (title, opt->title, sizeof (title));
else
snprintf (title, sizeof (title),
"%s [%s]", opt->title, unit_string (opt->unit));
switch (opt->type)
{
case SANE_TYPE_GROUP:
/* group a set of options */
vbox = standard_vbox;
if (opt->cap & SANE_CAP_ADVANCED)
vbox = advanced_vbox;
parent = group_new (vbox, title);
elem->widget = parent;
break;
case SANE_TYPE_BOOL:
if ((opt->cap & SANE_CAP_ADVANCED) && !dialog->advanced)
break;
if (!(opt->cap & SANE_CAP_SOFT_DETECT))
break;
assert (opt->size == sizeof (SANE_Word));
status = sane_control_option (dialog->dev, i, SANE_ACTION_GET_VALUE,
&val, 0);
if (status != SANE_STATUS_GOOD)
goto get_value_failed;
button_new (parent, title, val, elem, dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
gtk_widget_show (parent->parent);
break;
case SANE_TYPE_INT:
if ((opt->cap & SANE_CAP_ADVANCED) && !dialog->advanced)
break;
if (!(opt->cap & SANE_CAP_SOFT_DETECT))
break;
if (opt->size != sizeof (SANE_Word))
{
vector_opts[num_vector_opts++] = i;
break;
}
status = sane_control_option (dialog->dev, i, SANE_ACTION_GET_VALUE,
&val, 0);
if (status != SANE_STATUS_GOOD)
goto get_value_failed;
switch (opt->constraint_type)
{
case SANE_CONSTRAINT_RANGE:
/* use a scale */
quant = opt->constraint.range->quant;
if (quant == 0)
quant = 1;
scale_new (parent, title, val,
opt->constraint.range->min,
opt->constraint.range->max, quant,
(opt->cap & SANE_CAP_AUTOMATIC), elem,
dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
gtk_widget_show (parent->parent);
break;
case SANE_CONSTRAINT_WORD_LIST:
/* use a "list-selection" widget */
num_words = opt->constraint.word_list[0];
if (num_words == 0)
{
fprintf (stderr, "panel_build: empty word list!\n");
break;
}
val_in_list = SANE_FALSE;
str_list = malloc ((num_words + 1) * sizeof (str_list[0]));
for (j = 0; j < num_words; ++j)
{
if (opt->constraint.word_list[j + 1] == val)
val_in_list = SANE_TRUE;
sprintf (str, "%d", opt->constraint.word_list[j + 1]);
str_list[j] = strdup (str);
}
str_list[j] = 0;
if (!val_in_list)
val = opt->constraint.word_list[1];
sprintf (str, "%d", val);
option_menu_new (parent, title, str_list, str, elem,
dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
free (str_list);
gtk_widget_show (parent->parent);
break;
case SANE_CONSTRAINT_NONE:
/* having no constraint for an int is strange but allowed
by the SANE standard so we just ignore such options here */
break;
default:
fprintf (stderr, "panel_build: unknown constraint %d!\n",
opt->constraint_type);
break;
}
break;
case SANE_TYPE_FIXED:
if ((opt->cap & SANE_CAP_ADVANCED) && !dialog->advanced)
break;
if (!(opt->cap & SANE_CAP_SOFT_DETECT))
break;
if (opt->size != sizeof (SANE_Word))
{
vector_opts[num_vector_opts++] = i;
break;
}
status = sane_control_option (dialog->dev, i, SANE_ACTION_GET_VALUE,
&val, 0);
if (status != SANE_STATUS_GOOD)
goto get_value_failed;
switch (opt->constraint_type)
{
case SANE_CONSTRAINT_RANGE:
/* use a scale */
quant = opt->constraint.range->quant;
if (quant == 0)
quant = 1;
dval = SANE_UNFIX (val);
dmin = SANE_UNFIX (opt->constraint.range->min);
dmax = SANE_UNFIX (opt->constraint.range->max);
dquant = SANE_UNFIX (quant);
if (opt->unit == SANE_UNIT_MM)
{
dval /= preferences.length_unit;
dmin /= preferences.length_unit;
dmax /= preferences.length_unit;
dquant /= preferences.length_unit;
}
scale_new (parent, title, dval, dmin, dmax, dquant,
(opt->cap & SANE_CAP_AUTOMATIC), elem,
dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
gtk_widget_show (parent->parent);
break;
case SANE_CONSTRAINT_WORD_LIST:
/* use a "list-selection" widget */
num_words = opt->constraint.word_list[0];
str_list = malloc ((num_words + 1) * sizeof (str_list[0]));
for (j = 0; j < num_words; ++j)
{
sprintf (str, "%g",
SANE_UNFIX (opt->constraint.word_list[j + 1]));
str_list[j] = strdup (str);
}
str_list[j] = 0;
sprintf (str, "%g", SANE_UNFIX (val));
option_menu_new (parent, title, str_list, str, elem,
dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
free (str_list);
gtk_widget_show (parent->parent);
break;
case SANE_CONSTRAINT_NONE:
/* having no constraint for a fixed is strange but allowed
by the SANE standard so we just ignore such options here */
break;
default:
fprintf (stderr, "panel_build: unknown constraint %d!\n",
opt->constraint_type);
break;
}
break;
case SANE_TYPE_STRING:
if ((opt->cap & SANE_CAP_ADVANCED) && !dialog->advanced)
break;
if (!(opt->cap & SANE_CAP_SOFT_DETECT))
break;
buf = malloc (opt->size);
status = sane_control_option (dialog->dev, i, SANE_ACTION_GET_VALUE,
buf, 0);
if (status != SANE_STATUS_GOOD)
{
free (buf);
goto get_value_failed;
}
switch (opt->constraint_type)
{
case SANE_CONSTRAINT_STRING_LIST:
/* use a "list-selection" widget */
option_menu_new (parent, title,
(char **) opt->constraint.string_list, buf,
elem, dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
gtk_widget_show (parent->parent);
break;
case SANE_CONSTRAINT_NONE:
text_entry_new (parent, title, buf, elem,
dialog->tooltips, opt->desc,
SANE_OPTION_IS_SETTABLE (opt->cap));
gtk_widget_show (parent->parent);
break;
default:
fprintf (stderr, "panel_build: unknown constraint %d!\n",
opt->constraint_type);
break;
}
free (buf);
break;
case SANE_TYPE_BUTTON:
if ((opt->cap & SANE_CAP_ADVANCED) && !dialog->advanced)
break;
button = gtk_button_new ();
gtk_signal_connect (GTK_OBJECT (button), "clicked",
(GtkSignalFunc) push_button_callback, elem);
set_tooltip (dialog->tooltips, button, opt->desc);
label = gtk_label_new (title);
gtk_container_add (GTK_CONTAINER (button), label);
gtk_box_pack_start (GTK_BOX (parent), button, FALSE, TRUE, 0);
gtk_widget_show (label);
gtk_widget_show (button);
elem->widget = button;
gtk_widget_show (parent->parent);
break;
default:
fprintf (stderr, "panel_build: Unknown type %d\n", opt->type);
break;
}
continue;
get_value_failed:
{
char msg[256];
sprintf (msg, "Failed to obtain value of option %s: %s.",
opt->name, sane_strstatus (status));
gsg_error (msg);
}
}
/* now add in vector editor, if necessary: */
if (num_vector_opts)
vector_new (dialog, main_hbox, num_vector_opts, vector_opts);
if (dialog->advanced)
gtk_widget_show (dialog->advanced_vbox);
else
gtk_widget_hide (dialog->advanced_vbox);
gtk_widget_show (main_hbox);
}
/* When an setting an option changes the dialog, everything may
change: the option titles, the activity-status of the option, its
constraints or what not. Thus, rather than trying to be clever in
detecting what exactly changed, we use a brute-force method of
rebuilding the entire dialog. */
static void
panel_rebuild (GSGDialog * dialog)
{
panel_destroy (dialog);
panel_build (dialog);
}
GSGDialog *
gsg_create_dialog (GtkWidget * window, const char *device_name,
GSGCallback option_reload_callback,
void *option_reload_arg, GSGCallback param_change_callback,
void *param_change_arg)
{
SANE_Int num_elements;
GSGDialog *dialog;
SANE_Status status;
SANE_Handle dev;
char buf[256];
status = sane_open (device_name, &dev);
if (status != SANE_STATUS_GOOD)
{
sprintf (buf, "Failed to open device `%s': %s.",
device_name, sane_strstatus (status));
gsg_error (buf);
return 0;
}
if (sane_control_option (dev, 0, SANE_ACTION_GET_VALUE, &num_elements, 0)
!= SANE_STATUS_GOOD)
{
gsg_error ("Error obtaining option count.");
sane_close (dev);
return 0;
}
dialog = malloc (sizeof (*dialog));
memset (dialog, 0, sizeof (*dialog));
dialog->window = window;
dialog->dev = dev;
dialog->dev_name = strdup (device_name);
dialog->num_elements = num_elements;
dialog->option_reload_callback = option_reload_callback;
dialog->option_reload_arg = option_reload_arg;
dialog->param_change_callback = param_change_callback;
dialog->param_change_arg = param_change_arg;
dialog->advanced = preferences.advanced;
dialog->twocolumn = preferences.twocolumn_enabled;
dialog->element = malloc (num_elements * sizeof (dialog->element[0]));
memset (dialog->element, 0, num_elements * sizeof (dialog->element[0]));
panel_build (dialog);
return dialog;
}
void
gsg_refresh_dialog (GSGDialog * dialog)
{
panel_rebuild (dialog);
if (dialog->param_change_callback)
(*dialog->param_change_callback) (dialog, dialog->param_change_arg);
}
void
gsg_update_scan_window (GSGDialog * dialog)
{
const SANE_Option_Descriptor *opt;
double old_val, new_val;
GSGDialogElement *elem;
SANE_Status status;
SANE_Word word;
int i, optnum;
char str[64];
for (i = 0; i < 4; ++i)
if (dialog->well_known.coord[i] > 0)
{
optnum = dialog->well_known.coord[i];
elem = dialog->element + optnum;
opt = sane_get_option_descriptor (dialog->dev, optnum);
status = sane_control_option (dialog->dev, optnum,
SANE_ACTION_GET_VALUE, &word, 0);
if (status != SANE_STATUS_GOOD)
continue; /* sliently ignore errors */
switch (opt->constraint_type)
{
case SANE_CONSTRAINT_RANGE:
if (opt->type == SANE_TYPE_INT)
{
old_val = GTK_ADJUSTMENT (elem->data)->value;
new_val = word;
GTK_ADJUSTMENT (elem->data)->value = new_val;
}
else
{
old_val = GTK_ADJUSTMENT (elem->data)->value;
new_val = SANE_UNFIX (word);
if (opt->unit == SANE_UNIT_MM)
new_val /= preferences.length_unit;
GTK_ADJUSTMENT (elem->data)->value = new_val;
}
if (old_val != new_val)
gtk_signal_emit_by_name (GTK_OBJECT (elem->data),
"value_changed");
break;
case SANE_CONSTRAINT_WORD_LIST:
if (opt->type == SANE_TYPE_INT)
sprintf (str, "%d", word);
else
sprintf (str, "%g", SANE_UNFIX (word));
/* XXX maybe we should call this only when the value changes... */
gtk_option_menu_set_history (GTK_OPTION_MENU (elem->widget),
option_menu_lookup (elem->menu,
str));
break;
default:
break;
}
}
}
/* Ensure sure the device has up-to-date option values. Except for
vectors, all option values are kept current. Vectors are
downloaded into the device during this call. */
void
gsg_sync (GSGDialog * dialog)
{
const SANE_Option_Descriptor *opt;
gfloat val, *vector;
SANE_Word *optval;
int i, j, optlen;
GtkWidget *curve;
for (i = 1; i < dialog->num_elements; ++i)
{
opt = sane_get_option_descriptor (dialog->dev, i);
if (!SANE_OPTION_IS_ACTIVE (opt->cap))
continue;
if ((opt->type != SANE_TYPE_INT) && (opt->type != SANE_TYPE_FIXED))
continue;
if (opt->size == sizeof (SANE_Word))
continue;
// If curves is hidden (advanced option perhaps) then nothing to do.
if (!dialog->element[i].widget)
continue;
/* ok, we're dealing with an active vector */
optlen = opt->size / sizeof (SANE_Word);
optval = alloca (optlen * sizeof (optval[0]));
vector = alloca (optlen * sizeof (vector[0]));
curve = GTK_GAMMA_CURVE (dialog->element[i].widget)->curve;
gtk_curve_get_vector (GTK_CURVE (curve), optlen, vector);
for (j = 0; j < optlen; ++j)
{
val = vector[j];
if (opt->type == SANE_TYPE_FIXED)
optval[j] = SANE_FIX (val);
else
optval[j] = val + 0.5;
}
set_option (dialog, i, optval, SANE_ACTION_SET_VALUE);
}
}
void
gsg_set_advanced (GSGDialog * dialog, int advanced)
{
dialog->advanced = advanced;
panel_rebuild (dialog);
}
void
gsg_set_tooltips (GSGDialog * dialog, int enable)
{
if (!dialog->tooltips)
return;
if (enable)
gtk_tooltips_enable (dialog->tooltips);
else
gtk_tooltips_disable (dialog->tooltips);
}
void
gsg_set_twocolumn (GSGDialog * dialog, int twocolumn)
{
dialog->twocolumn = twocolumn;
panel_rebuild (dialog);
}
void
gsg_set_sensitivity (GSGDialog * dialog, int sensitive)
{
const SANE_Option_Descriptor *opt;
int i;
for (i = 0; i < dialog->num_elements; ++i)
{
opt = sane_get_option_descriptor (dialog->dev, i);
if (!SANE_OPTION_IS_ACTIVE (opt->cap)
|| opt->type == SANE_TYPE_GROUP || !dialog->element[i].widget)
continue;
#ifdef SANE_CAP_ALWAYS_SETTABLE
if (!(opt->cap & SANE_CAP_ALWAYS_SETTABLE))
gtk_widget_set_sensitive (dialog->element[i].widget, sensitive);
#else
gtk_widget_set_sensitive (dialog->element[i].widget, sensitive);
#endif
}
}
void
gsg_destroy_dialog (GSGDialog * dialog)
{
SANE_Handle dev = dialog->dev;
panel_destroy (dialog);
free ((void *) dialog->dev_name);
free (dialog->element);
free (dialog);
sane_close (dev);
}
Reference in New Issue View Git Blame Kopiuj bezpośredni odnośnik