GUIComponent *GUIComponent::get_next_component_in_tree()
{
if (has_child_components())
return get_first_child();
if (impl->next_sibling)
return impl->next_sibling;
GUIComponent *parent = impl->parent;
while (parent)
{
if (parent->get_next_sibling())
return parent->get_next_sibling();
parent = parent->get_parent_component();
}
// Reached end of tree. Return first item.
return get_top_level_component();
}
void GUIFindPreferredHeight::flex_vertical_node(GUIComponent_Impl *node)
{
node->css_used_values.height = node->component->get_preferred_content_height(node->css_used_values.width);
CSSUsedValue preferred_height = 0.0f;
for (GUIComponent *child = node->first_child; child != 0; child = child->get_next_sibling())
{
if (is_normal_flow(child->impl.get()))
{
GUICSSUsedValues &child_used_values = child->impl->css_used_values;
// If the height of the box cannot be determined from CSS, then ask the component:
if (child_used_values.height_undetermined)
{
GUICSSDisplayVisitor::node(child->impl.get());
}
preferred_height += get_used_noncontent_height(child_used_values) + child_used_values.height;
}
}
node->css_used_values.height = std::max(node->css_used_values.height, preferred_height);
GUICSSApplyMinMaxConstraints::visit(node->css_used_values, node->element.get_css_values().get_box(), node->parent->impl->css_used_values);
}
void RadioButton_Impl::on_process_message(std::shared_ptr<GUIMessage> &msg)
{
if (!radio->is_enabled())
return;
std::shared_ptr<GUIMessage_Input> input_msg = std::dynamic_pointer_cast<GUIMessage_Input>(msg);
if (input_msg)
{
const InputEvent &e = input_msg->input_event;
if (e.type == InputEvent::pressed && e.id == mouse_left)
{
part_checker.set_pseudo_class(CssStr::pressed, true);
radio->request_repaint();
msg->consumed = true;
}
else if (e.type == InputEvent::released && e.id == mouse_left)
{
if ((part_checker.get_pseudo_class(CssStr::checked) == false))
{
Callback_v1<RadioButton*> cb = uncheck_radio_buttons(radio->get_parent_component());
part_checker.set_pseudo_class(CssStr::pressed, false);
radio->set_selected(true);
if (!cb.is_null())
cb.invoke(radio);
if (!func_selected.is_null())
func_selected.invoke();
}
else
{
part_checker.set_pseudo_class(CssStr::pressed, false);
radio->request_repaint();
}
radio->set_focus(true);
msg->consumed = true;
}
else if (e.type == InputEvent::pressed && (e.id == keycode_left || e.id == keycode_up))
{
std::vector<GUIComponent*> group = radio->get_parent_component()->get_child_component_group(radio->get_component_group_name());
// find previous visible & enabled radiobutton in the same group:
GUIComponent *comp = radio->get_previous_sibling();
if (comp == 0)
comp = group.back();
while (comp != radio)
{
if (comp->is_visible() && comp->is_enabled() && comp->get_component_group_name() == radio->get_component_group_name())
{
RadioButton *focus_comp = dynamic_cast<RadioButton*>(comp);
if (focus_comp)
{
Callback_v1<RadioButton*> cb = uncheck_radio_buttons(radio->get_parent_component());
focus_comp->set_selected(true);
if (!cb.is_null())
cb.invoke(focus_comp);
if (!focus_comp->func_selected().is_null())
focus_comp->func_selected().invoke();
focus_comp->set_focus();
break;
}
}
if (!comp->get_previous_sibling() || comp->get_previous_sibling()->get_component_group_name() != radio->get_component_group_name())
{
// reach first item in group, loop around from the last:
comp = group.back();
}
else
comp = comp->get_previous_sibling();
}
msg->consumed = true;
}
else if (e.type == InputEvent::pressed && (e.id == keycode_right || e.id == keycode_down))
{
std::vector<GUIComponent*> group = radio->get_parent_component()->get_child_component_group(radio->get_component_group_name());
// find next visible & enabled radiobutton in the same group:
GUIComponent *comp = radio->get_next_sibling();
if (comp == 0 || comp->get_component_group_name() != radio->get_component_group_name())
comp = group.front();
while (comp != radio)
{
if (comp->is_visible() && comp->is_enabled() && comp->get_component_group_name() == radio->get_component_group_name())
{
RadioButton *focus_comp = dynamic_cast<RadioButton*>(comp);
if (focus_comp)
{
Callback_v1<RadioButton*> cb = uncheck_radio_buttons(radio->get_parent_component());
focus_comp->set_selected(true);
if (!cb.is_null())
cb.invoke(focus_comp);
if (!focus_comp->func_selected().is_null())
focus_comp->func_selected().invoke();
focus_comp->set_focus();
break;
}
}
if (!comp->get_previous_sibling() || comp->get_previous_sibling()->get_component_group_name() != radio->get_component_group_name())
{
// reach first item in group, loop around from the last:
comp = group.back();
}
else
comp = comp->get_next_sibling();
}
msg->consumed = true;
}
}
std::shared_ptr<GUIMessage_Pointer> pointer = std::dynamic_pointer_cast<GUIMessage_Pointer>(msg);
if (pointer)
{
if (pointer->pointer_type == GUIMessage_Pointer::pointer_enter)
{
part_checker.set_pseudo_class(CssStr::hover, true);
radio->request_repaint();
}
else
{
part_checker.set_pseudo_class(CssStr::hover, false);
radio->request_repaint();
}
}
std::shared_ptr<GUIMessage_FocusChange> focus_change_msg = std::dynamic_pointer_cast<GUIMessage_FocusChange>(msg);
if (focus_change_msg)
{
if (focus_change_msg->focus_type == GUIMessage_FocusChange::gained_focus)
{
radio->set_pseudo_class(CssStr::focused, true);
if (!radio->is_selected())
{
Callback_v1<RadioButton*> cb = uncheck_radio_buttons(radio->get_parent_component());
radio->set_selected(true);
if (!cb.is_null())
cb.invoke(radio);
if (!func_selected.is_null())
func_selected.invoke();
}
radio->request_repaint();
}
else
{
radio->set_pseudo_class(CssStr::focused, false);
radio->request_repaint();
}
msg->consumed = true;
}
}