void tslider::set_value(const int value)
{
if(value == get_value()) {
return;
}
if(value < minimum_value_) {
set_value(minimum_value_);
} else if(value > get_maximum_value()) {
set_value(get_maximum_value());
} else {
set_item_position(distance(minimum_value_, value));
}
}
void slider::set_maximum_value(const int maximum_value)
{
if(maximum_value == get_maximum_value()) {
return;
}
/** @todo maybe make it a VALIDATE. */
assert(minimum_value_ <= maximum_value);
const int value = get_value();
// The number of items needs to include the begin and end so distance + step
// size.
set_item_count(maximum_value - minimum_value_ + get_step_size());
if(value > maximum_value) {
set_item_position(get_maximum_value());
}
}
void tslider::set_maximum_value(const int maximum_value)
{
if(maximum_value == get_maximum_value()) {
return;
}
/** @todo maybe make it a VALIDATE. */
VALIDATE(minimum_value_ < maximum_value, null_str);
const int value = get_value();
// The number of items needs to include the begin and end so distance + 1.
set_item_count(distance(minimum_value_, maximum_value) + 1);
if(value > maximum_value) {
set_item_position(get_maximum_value());
} else {
set_item_position(minimum_value_ + value);
}
}
void tslider::set_minimum_value(const int minimum_value)
{
if(minimum_value == minimum_value_) {
return;
}
/** @todo maybe make it a VALIDATE. */
assert(minimum_value <= get_maximum_value());
const int value = get_value();
const int maximum_value = get_maximum_value();
minimum_value_ = minimum_value;
// The number of items needs to include the begin and end so distance + 1.
set_item_count(distance(minimum_value_, maximum_value) + 1);
if(value < minimum_value_) {
set_item_position(0);
} else {
set_item_position(minimum_value_ + value);
}
}
t_string tslider::get_value_label() const
{
if(value_labels_) {
return value_labels_(get_item_position(), get_item_count());
} else if(!minimum_value_label_.empty() && get_value()
== get_minimum_value()) {
return minimum_value_label_;
} else if(!maximum_value_label_.empty() && get_value()
== get_maximum_value()) {
return maximum_value_label_;
} else {
return t_string((formatter() << get_value()).str());
}
}
t_string tslider::get_value_label() const
{
if(!value_labels_.empty()) {
VALIDATE(value_labels_.size() == get_item_count(), null_str);
return value_labels_[get_item_position()];
} else if(!minimum_value_label_.empty()
&& get_value() == get_minimum_value()) {
return minimum_value_label_;
} else if(!maximum_value_label_.empty()
&& get_value() == get_maximum_value()) {
return maximum_value_label_;
} else {
return t_string((formatter() << get_value()).str());
}
}
t_string tslider::get_value_label() const
{
if(!value_labels_.empty()) {
assert(value_labels_.size() == get_item_count());
return value_labels_[get_item_position()];
} else if(!minimum_value_label_.empty()
&& get_value() == get_minimum_value()) {
return minimum_value_label_;
} else if(!maximum_value_label_.empty()
&& get_value() == get_maximum_value()) {
return maximum_value_label_;
} else {
return t_string(formatter_(get_value()));
}
}