137 lines
4.1 KiB
C++
137 lines
4.1 KiB
C++
#include <wx/window.h>
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#include "StateHandler.hpp"
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wxDEFINE_EVENT(EVT_ENABLE_CHANGED, wxCommandEvent);
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StateHandler::StateHandler(wxWindow * owner)
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: owner_(owner)
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{
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owner_->PushEventHandler(this);
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if (owner->IsEnabled())
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states_ |= Enabled;
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if (owner->HasFocus())
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states_ |= Focused;
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}
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StateHandler::~StateHandler() { owner_->RemoveEventHandler(this); }
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void StateHandler::attach(StateColor const &color)
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{
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colors_.push_back(&color);
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}
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void StateHandler::attach(std::vector<StateColor const *> const & colors)
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{
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colors_.insert(colors_.end(), colors.begin(), colors.end());
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}
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void StateHandler::attach_child(wxWindow *child)
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{
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auto ch = new StateHandler(this, child);
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children_.emplace_back(ch);
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ch->update_binds();
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states2_ |= ch->states();
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}
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void StateHandler::remove_child(wxWindow *child)
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{
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children_.erase(std::remove_if(children_.begin(), children_.end(),
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[child](auto &c) { return c->owner_ == child; }), children_.end());
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states2_ = 0;
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for (auto & c : children_) states2_ |= c->states();
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}
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void StateHandler::update_binds()
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{
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int bind_states = parent_ ? (parent_->bind_states_ & ~Enabled) : 0;
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for (auto c : colors_) {
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bind_states |= c->states();
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}
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bind_states = bind_states | (bind_states >> 16);
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int diff = bind_states ^ bind_states_;
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State states[] = {Enabled, Checked, Focused, Hovered, Pressed};
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wxEventType events[] = {EVT_ENABLE_CHANGED, wxEVT_CHECKBOX, wxEVT_SET_FOCUS, wxEVT_ENTER_WINDOW, wxEVT_LEFT_DOWN};
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wxEventType events2[] = {{0}, {0}, wxEVT_KILL_FOCUS, wxEVT_LEAVE_WINDOW, wxEVT_LEFT_UP};
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for (int i = 0; i < 5; ++i) {
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int s = states[i];
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if (diff & s) {
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if (bind_states & s) {
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Bind(events[i], &StateHandler::changed, this);
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if (events2[i])
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Bind(events2[i], &StateHandler::changed, this);
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} else {
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Unbind(events[i], &StateHandler::changed, this);
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if (events2[i])
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owner_->Unbind(events2[i], &StateHandler::changed, this);
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}
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}
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}
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bind_states_ = bind_states;
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for (auto &c : children_) c->update_binds();
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}
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void StateHandler::set_state(int state, int mask)
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{
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if (states_ & mask == state & mask) return;
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int old = states_;
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states_ = states_ & ~mask | state & mask;
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if (old != states_ && (old | states2_) != (states_ | states2_)) {
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if (parent_)
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parent_->changed(states_ | states2_);
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else
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owner_->Refresh();
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}
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}
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StateHandler::StateHandler(StateHandler *parent, wxWindow *owner)
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: StateHandler(owner)
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{
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states_ &= ~Enabled;
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parent_ = parent;
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}
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void StateHandler::changed(wxEvent &event)
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{
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event.Skip();
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wxEventType events[] = {EVT_ENABLE_CHANGED, wxEVT_CHECKBOX, wxEVT_SET_FOCUS, wxEVT_ENTER_WINDOW, wxEVT_LEFT_DOWN};
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wxEventType events2[] = {{0}, {0}, wxEVT_KILL_FOCUS, wxEVT_LEAVE_WINDOW, wxEVT_LEFT_UP};
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int old = states_;
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// some events are from another window (ex: text_ctrl of TextInput), save state in states2_ to avoid conflicts
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for (int i = 0; i < 5; ++i) {
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if (events2[i]) {
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if (event.GetEventType() == events[i]) {
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states_ |= 1 << i;
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break;
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} else if (event.GetEventType() == events2[i]) {
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states_ &= ~(1 << i);
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break;
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}
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}
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else {
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if (event.GetEventType() == events[i]) {
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states_ ^= (1 << i);
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break;
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}
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}
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}
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if (old != states_ && (old | states2_) != (states_ | states2_)) {
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if (parent_)
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parent_->changed(states_ | states2_);
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else
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owner_->Refresh();
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}
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}
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void StateHandler::changed(int)
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{
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int old = states2_;
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states2_ = 0;
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for (auto &c : children_) states2_ |= c->states();
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if (old != states2_ && (old | states_) != (states_ | states2_)) {
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if (parent_)
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parent_->changed(states_ | states2_);
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else
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owner_->Refresh();
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}
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}
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