static int
camera_cam_desc_get_widget (Camera *camera, CameraRegisterType *reg_p,
CameraWidget *section, GPContext *context)
{
int ind, vind, ret, value;
int mask;
char buff[1024];
CameraWidget *child;
RegisterDescriptorType *reg_desc_p;
GP_DEBUG ("register %d", reg_p->reg_number);
if (reg_p->reg_len == 0) {
/*
* This is 0 for GP_WIDGET_BUTTON (callbacks), since is no
* register for call backs. Frontends "get" the value, and
* call the function directly.
*/
ret = GP_OK;
} else if (reg_p->reg_len == 4) {
int rval;
ret = sierra_get_int_register (camera, reg_p->reg_number,
&rval,
context);
reg_p->reg_value = rval;
} else if (reg_p->reg_len == 8) {
/*
* reg_value is 8 bytes maximum. If you need a bigger
* value, change the reg_value size, or allocate space on
* the fly and make a union with reg_value and a void*.
*/
ret = sierra_get_string_register (camera, reg_p->reg_number,
-1, NULL, (unsigned char *)buff, (unsigned int *)&value, context);
if ((ret == GP_OK) && value != reg_p->reg_len) {
GP_DEBUG ("Bad length result %d", value);
return (GP_ERROR);
}
memcpy (®_p->reg_value, buff, reg_p->reg_len);
} else {
GP_DEBUG ("Bad register length %d", reg_p->reg_number);
return (GP_ERROR);
}
GP_DEBUG ("... '%s'.", gp_result_as_string (ret));
if (ret < 0) {
return (ret);
}
for (ind = 0; ind < reg_p->reg_desc_cnt; ind++) {
reg_desc_p = ®_p->reg_desc[ind];
mask = reg_desc_p->regs_mask;
GP_DEBUG ("window name is %s", reg_desc_p->regs_long_name);
gp_widget_new (reg_desc_p->reg_widget_type,
_(reg_desc_p->regs_long_name), &child);
gp_widget_set_name (child, reg_desc_p->regs_short_name);
/*
* Setting the info for the preference settings does not
* make sense like it does for an icon button. This is
* used as the tool-tip field (mouse over hint that pops
* up after a second in gtkam). We don't want this used
* at all; setting it to space doesn't work well, so just
* set it to the same as regs_long_name.
*/
gp_widget_set_info (child, _(reg_desc_p->regs_long_name));
GP_DEBUG ("reg_value 0x%016llx", (long long unsigned)reg_p->reg_value);
for (vind = 0; vind < reg_desc_p->reg_val_name_cnt; vind++) {
camera_cam_desc_get_value (®_desc_p->regs_value_names[vind],
reg_desc_p->reg_widget_type, reg_p->reg_len,
(char*) ®_p->reg_value, mask, child);
}
/*
* For radio and menu values: if there has been no change, it
* means the value was not set, and so it is unknown.
*/
if (((reg_desc_p->reg_widget_type == GP_WIDGET_RADIO) ||
(reg_desc_p->reg_widget_type == GP_WIDGET_MENU)) &&
!gp_widget_changed (child)) {
sprintf (buff, _("%lld (unknown)"), (long long)reg_p->reg_value);
gp_widget_add_choice (child, buff);
gp_widget_set_value (child, buff);
}
gp_widget_append (section, child);
}
return (GP_OK);
}
/**
* Retrieve a single configuration \c widget for the \c camera.
*
* @param camera a #Camera
* @param name the name of a configuration widget
* @param widget a #CameraWidget
* @param context a #GPContext
* @return gphoto2 error code
*
* This \c widget will then contain the current and the possible values and the type.
*
*/
int
gp_camera_get_single_config (Camera *camera, const char *name, CameraWidget **widget, GPContext *context)
{
CameraWidget *rootwidget, *child;
CameraWidgetType type;
const char *label;
int ret, ro;
C_PARAMS (camera);
CHECK_INIT (camera, context);
if (camera->functions->get_single_config) {
CHECK_RESULT_OPEN_CLOSE (camera, camera->functions->get_single_config (
camera, name, widget, context), context);
CAMERA_UNUSED (camera, context);
return GP_OK;
}
if (!camera->functions->get_config) {
gp_context_error (context, _("This camera does not provide any configuration options."));
CAMERA_UNUSED (camera, context);
return GP_ERROR_NOT_SUPPORTED;
}
/* emulate it ... */
CHECK_OPEN (camera, context);
ret = camera->functions->get_config ( camera, &rootwidget, context);
if (ret != GP_OK) {
CHECK_CLOSE (camera, context);
CAMERA_UNUSED (camera, context);
return ret;
}
ret = gp_widget_get_child_by_name (rootwidget, name, &child);
if (ret != GP_OK) {
gp_widget_free (rootwidget);
CHECK_CLOSE (camera, context);
CAMERA_UNUSED (camera, context);
return ret;
}
/* We need to duplicate the widget, as we will free the widgettree */
gp_widget_get_type (child, &type);
gp_widget_get_label (child, &label);
gp_widget_get_readonly (child, &ro);
ret = gp_widget_new (type, label, widget);
if (ret != GP_OK)
goto out;
gp_widget_set_name (*widget, name);
gp_widget_set_readonly (*widget, ro);
switch (type) {
case GP_WIDGET_MENU:
case GP_WIDGET_RADIO: {
char *value;
int i, nrofchoices;
nrofchoices = gp_widget_count_choices (child);
for (i = 0; i < nrofchoices; i++) {
const char *choice;
gp_widget_get_choice (child, i, &choice);
gp_widget_add_choice (*widget, choice);
}
gp_widget_get_value (child, &value);
gp_widget_set_value (*widget, value);
break;
}
case GP_WIDGET_TEXT: {
char *value;
gp_widget_get_value (child, &value);
gp_widget_set_value (*widget, value);
break;
}
case GP_WIDGET_RANGE: {
float value, rmin, rmax, rstep;
gp_widget_get_range (child, &rmin, &rmax, &rstep);
gp_widget_set_range (*widget, rmin, rmax, rstep);
gp_widget_get_value (child, &value);
gp_widget_set_value (*widget, &value);
break;
}
case GP_WIDGET_TOGGLE:
case GP_WIDGET_DATE: {
int value;
gp_widget_get_value (child, &value);
gp_widget_set_value (*widget, &value);
break;
}
case GP_WIDGET_BUTTON:
case GP_WIDGET_SECTION:
case GP_WIDGET_WINDOW:
default:
ret = GP_ERROR_BAD_PARAMETERS;
break;
}
out:
gp_widget_free (rootwidget);
CHECK_CLOSE (camera, context);
CAMERA_UNUSED (camera, context);
return ret;
}