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Lymia Aluysia
2017-01-18 08:43:21 -06:00
parent d7f5f0dc3b
commit d2c635f739
329 changed files with 41307 additions and 41496 deletions
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src/util/action_stack.cpp
+70 -70
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@@ -17,107 +17,107 @@ DECLARE_TYPEOF_COLLECTION(Action*);
DECLARE_TYPEOF_COLLECTION(ActionListener*);
ActionStack::ActionStack()
: save_point(nullptr)
, last_was_add(false)
: save_point(nullptr)
, last_was_add(false)
{}
ActionStack::~ActionStack() {
// we own the actions, delete them
FOR_EACH(a, undo_actions) delete a;
FOR_EACH(a, redo_actions) delete a;
// we own the actions, delete them
FOR_EACH(a, undo_actions) delete a;
FOR_EACH(a, redo_actions) delete a;
}
void ActionStack::addAction(Action* action, bool allow_merge) {
if (!action) return; // no action
action->perform(false); // TODO: delete action if perform throws
tellListeners(*action, false);
// clear redo list
if (!redo_actions.empty()) allow_merge = false; // don't merge after undo
FOR_EACH(a, redo_actions) delete a;
redo_actions.clear();
// try to merge?
if (allow_merge && !undo_actions.empty() &&
last_was_add && // never merge with something that was redone once already
undo_actions.back() != save_point && // never merge with the save point
undo_actions.back()->merge(*action) // merged with top undo action
) {
delete action;
} else {
undo_actions.push_back(action);
}
last_was_add = true;
if (!action) return; // no action
action->perform(false); // TODO: delete action if perform throws
tellListeners(*action, false);
// clear redo list
if (!redo_actions.empty()) allow_merge = false; // don't merge after undo
FOR_EACH(a, redo_actions) delete a;
redo_actions.clear();
// try to merge?
if (allow_merge && !undo_actions.empty() &&
last_was_add && // never merge with something that was redone once already
undo_actions.back() != save_point && // never merge with the save point
undo_actions.back()->merge(*action) // merged with top undo action
) {
delete action;
} else {
undo_actions.push_back(action);
}
last_was_add = true;
}
void ActionStack::undo() {
assert(canUndo());
if (!canUndo()) return;
Action* action = undo_actions.back();
action->perform(true);
tellListeners(*action, true);
// move to redo stack
undo_actions.pop_back();
redo_actions.push_back(action);
last_was_add = false;
assert(canUndo());
if (!canUndo()) return;
Action* action = undo_actions.back();
action->perform(true);
tellListeners(*action, true);
// move to redo stack
undo_actions.pop_back();
redo_actions.push_back(action);
last_was_add = false;
}
void ActionStack::redo() {
assert(canRedo());
if (!canRedo()) return;
Action* action = redo_actions.back();
action->perform(false);
tellListeners(*action, false);
// move to undo stack
redo_actions.pop_back();
undo_actions.push_back(action);
last_was_add = false;
assert(canRedo());
if (!canRedo()) return;
Action* action = redo_actions.back();
action->perform(false);
tellListeners(*action, false);
// move to undo stack
redo_actions.pop_back();
undo_actions.push_back(action);
last_was_add = false;
}
bool ActionStack::canUndo() const {
return !undo_actions.empty();
return !undo_actions.empty();
}
bool ActionStack::canRedo() const {
return !redo_actions.empty();
return !redo_actions.empty();
}
String ActionStack::undoName() const {
if (canUndo()) {
return _(" ") + capitalize(undo_actions.back()->getName(true));
} else {
return wxEmptyString;
}
if (canUndo()) {
return _(" ") + capitalize(undo_actions.back()->getName(true));
} else {
return wxEmptyString;
}
}
String ActionStack::redoName() const {
if (canRedo()) {
return _(" ") + capitalize(redo_actions.back()->getName(false));
} else {
return wxEmptyString;
}
if (canRedo()) {
return _(" ") + capitalize(redo_actions.back()->getName(false));
} else {
return wxEmptyString;
}
}
bool ActionStack::atSavePoint() const {
return (undo_actions.empty() && save_point == nullptr)
|| (undo_actions.back() == save_point);
return (undo_actions.empty() && save_point == nullptr)
|| (undo_actions.back() == save_point);
}
void ActionStack::setSavePoint() {
if (undo_actions.empty()) {
save_point = nullptr;
} else {
save_point = undo_actions.back();
}
if (undo_actions.empty()) {
save_point = nullptr;
} else {
save_point = undo_actions.back();
}
}
void ActionStack::addListener(ActionListener* listener) {
listeners.push_back(listener);
listeners.push_back(listener);
}
void ActionStack::removeListener(ActionListener* listener) {
listeners.erase(
std::remove(
listeners.begin(),
listeners.end(),
listener
),
listeners.end()
);
listeners.erase(
std::remove(
listeners.begin(),
listeners.end(),
listener
),
listeners.end()
);
}
void ActionStack::tellListeners(const Action& action, bool undone) {
FOR_EACH(l, listeners) l->onAction(action, undone);
FOR_EACH(l, listeners) l->onAction(action, undone);
}