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https://github.com/subsurface/subsurface.git
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c88d22462d
This rarely gets seen / looked at, but it can help make it easier to understand what a user was doing when trying to restore dives that were inadvertantly deleted. Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
135 lines
3.4 KiB
C++
135 lines
3.4 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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#include "command.h"
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#include "command_base.h"
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#include "core/globals.h"
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#include "core/qthelper.h" // for updateWindowTitle()
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#include "core/subsurface-qt/divelistnotifier.h"
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#include <QVector>
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namespace Command {
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static QUndoStack *undoStack;
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// forward declaration
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QString changesMade();
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// General commands
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void init()
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{
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undoStack = make_global<QUndoStack>();
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QObject::connect(undoStack, &QUndoStack::cleanChanged, &updateWindowTitle);
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QObject::connect(&diveListNotifier, &DiveListNotifier::dataReset, &Command::clear);
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changesCallback = &changesMade;
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}
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void clear()
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{
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undoStack->clear();
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}
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void setClean()
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{
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undoStack->setClean();
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}
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bool isClean()
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{
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return undoStack->isClean();
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}
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// this can be used to get access to the signals emitted by the QUndoStack
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QUndoStack *getUndoStack()
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{
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return undoStack;
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}
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QAction *undoAction(QObject *parent)
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{
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return undoStack->createUndoAction(parent, QCoreApplication::translate("Command", "&Undo"));
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}
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QAction *redoAction(QObject *parent)
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{
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return undoStack->createRedoAction(parent, QCoreApplication::translate("Command", "&Redo"));
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}
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QString diveNumberOrDate(struct dive *d)
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{
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if (d->number != 0)
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return QStringLiteral("#%1").arg(d->number);
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else
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return QStringLiteral("@%1").arg(get_short_dive_date_string(d->when));
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}
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QString getListOfDives(const std::vector<struct dive*> &dives)
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{
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QString listOfDives;
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if ((int)dives.size() == dive_table.nr)
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return Base::tr("all dives");
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int i = 0;
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for (dive *d: dives) {
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// we show a maximum of five dive numbers, or 4 plus ellipsis
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if (++i == 4 && dives.size() >= 5)
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return listOfDives + "...";
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listOfDives += diveNumberOrDate(d) + ", ";
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}
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if (!listOfDives.isEmpty())
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listOfDives.truncate(listOfDives.length() - 2);
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return listOfDives;
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}
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QString getListOfDives(QVector<struct dive *> dives)
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{
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return getListOfDives(std::vector<struct dive *>(dives.begin(), dives.end()));
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}
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// return a string that can be used for the commit message and should list the changes that
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// were made to the dive list
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// keep in mind that the changes could have been a number of undo commands, so we might have
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// to go backwards from the last one written; this isn't perfect as a user could undo a command
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// and then do something else instead of redoing that undo - the undo information is then lost
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// for the changelog -- but of course the git history will show what happened
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QString changesMade()
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{
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static int nextToWrite = 0;
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int curIdx = undoStack->index();
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QString changeTexts;
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if (curIdx > nextToWrite) {
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for (int i = nextToWrite; i < curIdx; i++)
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changeTexts += undoStack->text(i) + "\n";
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} else if (curIdx < nextToWrite) { // we walked back undoing things
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for (int i = nextToWrite - 1; i >= curIdx; i--)
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changeTexts += "(undo) " + undoStack->text(i) + "\n";
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} else if (curIdx > 0) {
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// so this means we undid something (or more than one thing) and then did something else
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// so we lost the information of what was undone - and how many things were changed;
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// just show the last change
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changeTexts += undoStack->text(curIdx - 1) + "\n";
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}
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nextToWrite = curIdx;
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return changeTexts;
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}
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static bool executingCommand = false;
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bool execute(Base *cmd)
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{
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if (cmd->workToBeDone()) {
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executingCommand = true;
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undoStack->push(cmd);
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executingCommand = false;
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emit diveListNotifier.commandExecuted();
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return true;
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} else {
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delete cmd;
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return false;
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}
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}
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bool placingCommand()
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{
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return executingCommand;
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}
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} // namespace Command
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