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Added methods UndoManager::getUndoDescriptions() and UndoManager::getRedoDescriptions()

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This commit is contained in:
jules 2018-04-03 12:32:08 +01:00
parent 7bcd6a5ecd
commit f752a3331e
2 changed files with 64 additions and 23 deletions
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32
modules/juce_data_structures/undomanager/juce_UndoManager.cpp
View file

@ -98,7 +98,7 @@ void UndoManager::setMaxNumberOfStoredUnits (int maxUnits, int minTransactions)
}
//==============================================================================
bool UndoManager::perform (UndoableAction* const newAction, const String& actionName)
bool UndoManager::perform (UndoableAction* newAction, const String& actionName)
{
if (perform (newAction))
{
@ -237,8 +237,8 @@ String UndoManager::getCurrentTransactionName() const noexcept
}
//==============================================================================
UndoManager::ActionSet* UndoManager::getCurrentSet() const noexcept { return transactions [nextIndex - 1]; }
UndoManager::ActionSet* UndoManager::getNextSet() const noexcept { return transactions [nextIndex]; }
UndoManager::ActionSet* UndoManager::getCurrentSet() const noexcept { return transactions[nextIndex - 1]; }
UndoManager::ActionSet* UndoManager::getNextSet() const noexcept { return transactions[nextIndex]; }
bool UndoManager::canUndo() const noexcept { return getCurrentSet() != nullptr; }
bool UndoManager::canRedo() const noexcept { return getNextSet() != nullptr; }
@ -297,6 +297,32 @@ String UndoManager::getRedoDescription() const
return {};
}
StringArray UndoManager::getUndoDescriptions() const
{
StringArray descriptions;
for (int i = nextIndex;;)
{
if (auto* t = transactions[--i])
descriptions.add (t->name);
else
return descriptions;
}
}
StringArray UndoManager::getRedoDescriptions() const
{
StringArray descriptions;
for (int i = nextIndex;;)
{
if (auto* t = transactions[i++])
descriptions.add (t->name);
else
return descriptions;
}
}
Time UndoManager::getTimeOfUndoTransaction() const
{
if (auto* s = getCurrentSet())

55
modules/juce_data_structures/undomanager/juce_UndoManager.h
View file

@ -158,14 +158,10 @@ public:
*/
bool canUndo() const noexcept;
/** Returns the name of the transaction that will be rolled-back when undo() is called.
@see undo
*/
String getUndoDescription() const;
/** Tries to roll-back the last transaction.
@returns true if the transaction can be undone, and false if it fails, or
if there aren't any transactions to undo
@see undoCurrentTransactionOnly
*/
bool undo();
@ -184,6 +180,23 @@ public:
*/
bool undoCurrentTransactionOnly();
/** Returns the name of the transaction that will be rolled-back when undo() is called.
@see undo, canUndo, getUndoDescriptions
*/
String getUndoDescription() const;
/** Returns the names of the sequence of transactions that will be performed if undo()
is repeatedly called. Note that for transactions where no name was provided, the
corresponding string will be empty.
@see undo, canUndo, getUndoDescription
*/
StringArray getUndoDescriptions() const;
/** Returns the time to which the state would be restored if undo() was to be called.
If an undo isn't currently possible, it'll return Time().
*/
Time getTimeOfUndoTransaction() const;
/** Returns a list of the UndoableAction objects that have been performed during the
transaction that is currently open.
@ -200,33 +213,35 @@ public:
*/
int getNumActionsInCurrentTransaction() const;
/** Returns the time to which the state would be restored if undo() was to be called.
If an undo isn't currently possible, it'll return Time().
*/
Time getTimeOfUndoTransaction() const;
/** Returns the time to which the state would be restored if redo() was to be called.
If a redo isn't currently possible, it'll return Time::getCurrentTime().
*/
Time getTimeOfRedoTransaction() const;
//==============================================================================
/** Returns true if there's at least one action in the list to redo.
@see getRedoDescription, redo, canUndo
*/
bool canRedo() const noexcept;
/** Returns the name of the transaction that will be redone when redo() is called.
@see redo
*/
String getRedoDescription() const;
/** Tries to redo the last transaction that was undone.
@returns true if the transaction can be redone, and false if it fails, or
if there aren't any transactions to redo
*/
bool redo();
/** Returns the name of the transaction that will be redone when redo() is called.
@see redo, canRedo, getRedoDescriptions
*/
String getRedoDescription() const;
/** Returns the names of the sequence of transactions that will be performed if redo()
is repeatedly called. Note that for transactions where no name was provided, the
corresponding string will be empty.
@see redo, canRedo, getRedoDescription
*/
StringArray getRedoDescriptions() const;
/** Returns the time to which the state would be restored if redo() was to be called.
If a redo isn't currently possible, it'll return Time::getCurrentTime().
@see redo, canRedo
*/
Time getTimeOfRedoTransaction() const;
private:
//==============================================================================