sane-project-backends/frontend/gtkglue.h

120 wiersze
3.3 KiB
C

#ifndef gtkglue_h
#define gtkglue_h
#include <sys/types.h>
#include <gtk/gtk.h>
#include <sane/config.h>
#include <sane/sane.h>
struct GSGDialog;
typedef void (*GSGCallback) (struct GSGDialog *dialog, void *arg);
typedef enum
{
GSG_TL_X, /* top-left x */
GSG_TL_Y, /* top-left y */
GSG_BR_X, /* bottom-right x */
GSG_BR_Y /* bottom-right y */
}
GSGCornerCoordinates;
typedef struct
{
/* The option number of the well-known options. Each of these may
be -1 in case the backend doesn't define the respective option. */
int preview;
int dpi;
int coord[4];
}
GSGWellKnownOptions;
typedef struct
{
gchar *label;
struct GSGDialogElement *elem;
gint index;
}
GSGMenuItem;
typedef struct GSGDialogElement
{
struct GSGDialog *dialog; /* wasteful, but is there a better solution? */
GtkWidget *automatic; /* auto button for options that support this */
GtkWidget *widget;
GtkObject *data;
int menu_size; /* # of items in menu (if any) */
GSGMenuItem *menu;
}
GSGDialogElement;
typedef struct GSGDialog
{
GtkWidget *window;
GtkWidget *main_hbox;
GtkWidget *advanced_vbox;
GtkTooltips *tooltips;
GdkColor tooltips_fg;
GdkColor tooltips_bg;
SANE_Handle *dev;
const char *dev_name;
GSGWellKnownOptions well_known;
int num_elements;
GSGDialogElement *element;
gint idle_id;
u_int rebuild : 1;
u_int advanced : 1;
/* This callback gets invoked whenever the backend notifies us
that the option descriptors have changed. */
GSGCallback option_reload_callback;
void *option_reload_arg;
/* This callback gets invoked whenever the backend notifies us
that the parameters have changed. */
GSGCallback param_change_callback;
void *param_change_arg;
}
GSGDialog;
extern int gsg_message_dialog_active;
/* Construct the path and return it in filename_ret (this buffer must
be at least max_len bytes long). The path is constructed as
follows:
~/.sane/${PROG_NAME}/${PREFIX}${DEV_NAME}${POSTFIX}
If PROG_NAME is NULL, an empty string is used and the leading slash
is removed. On success, 0 is returned, on error a negative number and
ERRNO is set to the appropriate value. */
extern int gsg_make_path (size_t max_len, char *filename_ret,
const char *prog_name,
const char *prefix, const char *dev_name,
const char *postfix);
extern void gsg_message (gchar *title, gchar * message);
extern void gsg_error (gchar * error_message);
extern void gsg_warning (gchar * warning_message);
extern int gsg_get_filename (const char *label, const char *default_name,
size_t max_len, char *filename);
extern GSGDialog *gsg_create_dialog (GtkWidget *window,
const char *device_name,
GSGCallback option_reload_callback,
void *option_reload_arg,
GSGCallback param_callback,
void *param_arg);
extern void gsg_sync (GSGDialog *dialog);
extern void gsg_refresh_dialog (GSGDialog *dialog);
extern void gsg_update_scan_window (GSGDialog *dialog);
extern void gsg_set_advanced (GSGDialog *dialog, int advanced);
extern void gsg_set_tooltips (GSGDialog *dialog, int enable);
extern void gsg_set_sensitivity (GSGDialog *dialog, int sensitive);
extern void gsg_destroy_dialog (GSGDialog * dialog);
#define gsg_dialog_get_device(dialog) ((dialog)->dev)
#endif /* gtkglue_h */