static gboolean _lib_histogram_button_press_callback(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
/* check if exposure hooks are available */
gboolean hooks_available = dt_dev_exposure_hooks_available(darktable.develop);
if(!hooks_available)
return TRUE;
if(event->type == GDK_2BUTTON_PRESS)
{
dt_dev_exposure_reset_defaults(darktable.develop);
}
else
{
d->dragging = 1;
if(d->highlight == 2)
d->white = dt_dev_exposure_get_white(darktable.develop);
if(d->highlight == 1)
d->black = dt_dev_exposure_get_black(darktable.develop);
d->button_down_x = event->x;
d->button_down_y = event->y;
}
return TRUE;
}
static gboolean _lib_histogram_button_press_callback(GtkWidget *widget, GdkEventButton *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
/* check if exposure hooks are available */
gboolean hooks_available = dt_dev_exposure_hooks_available(darktable.develop);
if(!hooks_available)
return TRUE;
if(event->type == GDK_2BUTTON_PRESS)
{
dt_dev_exposure_reset_defaults(darktable.develop);
}
else
{
if(d->highlight == 3) // mode button
{
darktable.develop->histogram_type = (darktable.develop->histogram_type + 1) % DT_DEV_HISTOGRAM_N;
dt_conf_set_string("plugins/darkroom/histogram/mode", dt_dev_histogram_type_names[darktable.develop->histogram_type]);
}
else if(d->highlight == 4) // red button
{
d->red = !d->red;
dt_conf_set_bool("plugins/darkroom/histogram/show_red", d->red);
}
else if(d->highlight == 5) // green button
{
d->green = !d->green;
dt_conf_set_bool("plugins/darkroom/histogram/show_green", d->green);
}
else if(d->highlight == 6) // blue button
{
d->blue = !d->blue;
dt_conf_set_bool("plugins/darkroom/histogram/show_blue", d->blue);
}
else
{
d->dragging = 1;
if(d->highlight == 2)
d->white = dt_dev_exposure_get_white(darktable.develop);
if(d->highlight == 1)
d->black = dt_dev_exposure_get_black(darktable.develop);
d->button_down_x = event->x;
d->button_down_y = event->y;
}
}
// update for good measure
dt_control_queue_redraw_widget(self->widget);
return TRUE;
}
static gboolean _lib_histogram_scroll_callback(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
float ce = dt_dev_exposure_get_exposure(darktable.develop);
float cb = dt_dev_exposure_get_black(darktable.develop);
if(event->direction == GDK_SCROLL_UP && d->highlight == 2)
dt_dev_exposure_set_exposure(darktable.develop, ce + 0.15);
if(event->direction == GDK_SCROLL_DOWN && d->highlight == 2)
dt_dev_exposure_set_exposure(darktable.develop, ce - 0.15);
if(event->direction == GDK_SCROLL_UP && d->highlight == 1)
dt_dev_exposure_set_black(darktable.develop, cb - 0.001);
if(event->direction == GDK_SCROLL_DOWN && d->highlight == 1)
dt_dev_exposure_set_black(darktable.develop, cb + 0.001);
return TRUE;
}
static gboolean _lib_histogram_scroll_callback(GtkWidget *widget, GdkEventScroll *event, gpointer user_data)
{
dt_lib_module_t *self = (dt_lib_module_t *)user_data;
dt_lib_histogram_t *d = (dt_lib_histogram_t *)self->data;
float ce = dt_dev_exposure_get_exposure(darktable.develop);
float cb = dt_dev_exposure_get_black(darktable.develop);
int delta_y;
// note are using unit rather than smooth scroll events, as
// exposure changes can get laggy if handling a multitude of smooth
// scroll events
if(dt_gui_get_scroll_unit_deltas(event, NULL, &delta_y))
{
if(d->highlight == 2)
dt_dev_exposure_set_exposure(darktable.develop, ce - 0.15f * delta_y);
else if(d->highlight == 1)
dt_dev_exposure_set_black(darktable.develop, cb + 0.001f * delta_y);
}
return TRUE;
}