/*
* LibrePCB - Professional EDA for everyone!
* Copyright (C) 2013 LibrePCB Developers, see AUTHORS.md for contributors.
* https://librepcb.org/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
/*******************************************************************************
* Includes
******************************************************************************/
#include "undostackactiongroup.h"
#include "../undostack.h"
#include
#include
/*******************************************************************************
* Namespace
******************************************************************************/
namespace librepcb {
/*******************************************************************************
* Constructors / Destructor
******************************************************************************/
UndoStackActionGroup::UndoStackActionGroup(QAction& undo, QAction& redo,
QAction* save, UndoStack* stack,
QWidget* msgBoxParent) noexcept
: QObject(nullptr),
mUndo(undo),
mRedo(redo),
mSave(save),
mStack(nullptr),
mMsgBoxParent(msgBoxParent) {
connect(&mUndo, &QAction::triggered, this,
&UndoStackActionGroup::undoTriggered);
connect(&mRedo, &QAction::triggered, this,
&UndoStackActionGroup::redoTriggered);
registerToStack(stack);
}
UndoStackActionGroup::~UndoStackActionGroup() noexcept {
unregisterFromStack();
}
/*******************************************************************************
* General Methods
******************************************************************************/
void UndoStackActionGroup::setUndoStack(UndoStack* stack) noexcept {
if (stack != mStack) {
unregisterFromStack();
registerToStack(stack);
}
}
/*******************************************************************************
* Private Methods
******************************************************************************/
void UndoStackActionGroup::undoTriggered() noexcept {
try {
if (mStack) mStack->undo();
} catch (const Exception& e) {
QMessageBox::critical(mMsgBoxParent, tr("Undo failed"), e.getMsg());
}
}
void UndoStackActionGroup::redoTriggered() noexcept {
try {
if (mStack) mStack->redo();
} catch (const Exception& e) {
QMessageBox::critical(mMsgBoxParent, tr("Redo failed"), e.getMsg());
}
}
void UndoStackActionGroup::unregisterFromStack() noexcept {
while (mConnections.count() > 0) {
disconnect(mConnections.takeLast());
}
mUndo.setText(QString());
mUndo.setEnabled(false);
mRedo.setText(QString());
mRedo.setEnabled(false);
if (mSave) mSave->setEnabled(false);
mStack = nullptr;
}
void UndoStackActionGroup::registerToStack(UndoStack* stack) noexcept {
Q_ASSERT(!mStack);
if (stack) {
mConnections.append(
connect(stack, &UndoStack::undoTextChanged, &mUndo, &QAction::setText));
mUndo.setText(stack->getUndoText());
mConnections.append(connect(stack, &UndoStack::canUndoChanged, &mUndo,
&QAction::setEnabled));
mUndo.setEnabled(stack->canUndo());
mConnections.append(
connect(stack, &UndoStack::redoTextChanged, &mRedo, &QAction::setText));
mRedo.setText(stack->getRedoText());
mConnections.append(connect(stack, &UndoStack::canRedoChanged, &mRedo,
&QAction::setEnabled));
mRedo.setEnabled(stack->canRedo());
if (mSave) {
mConnections.append(connect(stack, &UndoStack::cleanChanged, mSave,
&QAction::setDisabled));
mSave->setDisabled(stack->isClean());
}
}
mStack = stack;
}
/*******************************************************************************
* End of File
******************************************************************************/
} // namespace librepcb