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ENH: StateHandler as wxEvtHandler and attach child

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Change-Id: I1183b97983907f297888d81809be60e3016ae305
This commit is contained in:
chunmao.guo 2022-08-09 11:03:14 +08:00 • committed by Lane.Wei
parent 2c99301fe6
commit b96ca57fde
4 changed files with 72 additions and 39 deletions
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69
src/slic3r/GUI/Widgets/StateHandler.cpp
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@ -5,24 +5,44 @@ wxDEFINE_EVENT(EVT_ENABLE_CHANGED, wxCommandEvent);
StateHandler::StateHandler(wxWindow * owner)
: owner_(owner)
{
owner_->PushEventHandler(this);
if (owner->IsEnabled())
states_ |= Enabled;
if (owner->HasFocus())
states_ |= Focused;
}
StateHandler::~StateHandler() { owner_->RemoveEventHandler(this); }
void StateHandler::attach(StateColor const &color)
{
colors_.push_back(&color);
}
void StateHandler::attach(std::vector<StateColor const *> const & colors)
{
colors_.insert(colors_.end(), colors.begin(), colors.end());
}
void StateHandler::attach_child(wxWindow *child)
{
auto ch = new StateHandler(this, child);
children_.emplace_back(ch);
ch->update_binds();
states2_ |= ch->states();
}
void StateHandler::remove_child(wxWindow *child)
{
children_.erase(std::remove_if(children_.begin(), children_.end(),
[child](auto &c) { return c->owner_ == child; }), children_.end());
states2_ = 0;
for (auto & c : children_) states2_ |= c->states();
}
void StateHandler::update_binds()
{
int bind_states = 0;
int bind_states = parent_ ? (parent_->bind_states_ & ~Enabled) : 0;
for (auto c : colors_) {
bind_states |= c->states();
}
@ -35,45 +55,68 @@ void StateHandler::update_binds()
int s = states[i];
if (diff & s) {
if (bind_states & s) {
owner_->Bind(events[i], &StateHandler::changed, this);
Bind(events[i], &StateHandler::changed, this);
if (events2[i])
owner_->Bind(events2[i], &StateHandler::changed, this);
Bind(events2[i], &StateHandler::changed, this);
} else {
owner_->Unbind(events[i], &StateHandler::changed, this);
Unbind(events[i], &StateHandler::changed, this);
if (events2[i])
owner_->Unbind(events2[i], &StateHandler::changed, this);
}
}
}
bind_states_ = bind_states;
owner_->Refresh();
for (auto &c : children_) c->update_binds();
}
void StateHandler::changed(wxEvent & event)
StateHandler::StateHandler(StateHandler *parent, wxWindow *owner)
: StateHandler(owner)
{
states_ &= ~Enabled;
parent_ = parent;
}
void StateHandler::changed(wxEvent &event)
{
event.Skip();
wxEventType events[] = {EVT_ENABLE_CHANGED, wxEVT_CHECKBOX, wxEVT_SET_FOCUS, wxEVT_ENTER_WINDOW, wxEVT_LEFT_DOWN};
wxEventType events2[] = {{0}, {0}, wxEVT_KILL_FOCUS, wxEVT_LEAVE_WINDOW, wxEVT_LEFT_UP};
int old = states2_ | states_;
int old = states_;
// some events are from another window (ex: text_ctrl of TextInput), save state in states2_ to avoid conflicts
int & states = event.GetEventObject() == owner_ ? states_ : states2_;
for (int i = 0; i < 5; ++i) {
if (events2[i]) {
if (event.GetEventType() == events[i]) {
states |= 1 << i;
states_ |= 1 << i;
break;
} else if (event.GetEventType() == events2[i]) {
states &= ~(1 << i);
states_ &= ~(1 << i);
break;
}
}
else {
if (event.GetEventType() == events[i]) {
states ^= (1 << i);
states_ ^= (1 << i);
break;
}
}
}
if (old != (states2_ | states_))
owner_->Refresh();
if (old != states_ && (old | states2_) != (states_ | states2_)) {
if (parent_)
parent_->changed(states_ | states2_);
else
owner_->Refresh();
}
}
void StateHandler::changed(int)
{
int old = states2_;
states2_ = 0;
for (auto &c : children_) states2_ |= c->states();
if (old != states2_ && (old | states_) != (states_ | states2_)) {
if (parent_)
parent_->changed(states_ | states2_);
else
owner_->Refresh();
}
}