/* 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 #include #include #include #include #include #include #include #include /* Apollo/DomainOS needs this _before_ sys/stat.h */ #include #include "gtkglue.h" #include "preferences.h" #include #include #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; 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]; str_list = malloc ((num_words + 1) * sizeof (str_list[0])); for (j = 0; j < num_words; ++j) { sprintf (str, "%d", opt->constraint.word_list[j + 1]); str_list[j] = strdup (str); } str_list[j] = 0; 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; /* 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; if (!(opt->cap & SANE_CAP_ALWAYS_SETTABLE)) gtk_widget_set_sensitive (dialog->element[i].widget, sensitive); } } 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); }