Cleanup: remove EDIT_TEXT and EDIT_VALUE macros in maintab.cpp

These functions are now performed by the edit commands and the
macros have no users. Remove them.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

7 files changed, 215 insertions, 62 deletions

diff --git a/desktop-widgets/command.cpp b/desktop-widgets/command.cpp
index 0486b2bce..07c8be61d 100644
--- a/desktop-widgets/command.cpp
+++ b/desktop-widgets/command.cpp
@@ -200,4 +200,9 @@ void editDiveMaster(const QStringList &newList, bool currentDiveOnly)
 	execute(new EditDiveMaster(newList, currentDiveOnly));
 }
 
+void pasteDives(const dive *d, dive_components what)
+{
+	execute(new PasteDives(d, what));
+}
+
 } // namespace Command
diff --git a/desktop-widgets/command.h b/desktop-widgets/command.h
index 7667f3482..6cfd7fc4e 100644
--- a/desktop-widgets/command.h
+++ b/desktop-widgets/command.h
@@ -66,6 +66,7 @@ void editDiveSiteNew(const QString &newName, bool currentDiveOnly);
 void editTags(const QStringList &newList, bool currentDiveOnly);
 void editBuddies(const QStringList &newList, bool currentDiveOnly);
 void editDiveMaster(const QStringList &newList, bool currentDiveOnly);
+void pasteDives(const dive *d, dive_components what);
 
 } // namespace Command
 
diff --git a/desktop-widgets/command_edit.cpp b/desktop-widgets/command_edit.cpp
index f92d045aa..106670978 100644
--- a/desktop-widgets/command_edit.cpp
+++ b/desktop-widgets/command_edit.cpp
@@ -4,6 +4,7 @@
 #include "command_private.h"
 #include "core/divelist.h"
 #include "core/qthelper.h" // for copy_qstring
+#include "core/subsurface-string.h"
 #include "desktop-widgets/mapwidget.h" // TODO: Replace desktop-dependency by signal
 
 namespace Command {
@@ -598,4 +599,177 @@ DiveField EditDiveMaster::fieldId() const
 	return DiveField::DIVEMASTER;
 }
 
+// Helper function to copy cylinders. This supposes that the destination
+// cylinder is uninitialized. I.e. the old description is not freed!
+static void copy_cylinder(const cylinder_t &s, cylinder_t &d)
+{
+	d.type.description = copy_string(s.type.description);
+	d.type.size = s.type.size;
+	d.type.workingpressure = s.type.workingpressure;
+	d.gasmix = s.gasmix;
+	d.cylinder_use = s.cylinder_use;
+	d.depth = s.depth;
+}
+
+static void swapCandQString(QString &q, char *&c)
+{
+	QString tmp(c);
+	free(c);
+	c = copy_qstring(q);
+	q = std::move(tmp);
+}
+
+PasteState::PasteState(dive *dIn, const dive *data, dive_components what) : d(dIn),
+	tags(nullptr)
+{
+	memset(&cylinders[0], 0, sizeof(cylinders));
+	memset(&weightsystems[0], 0, sizeof(weightsystems));
+	if (what.notes)
+		notes = data->notes;
+	if (what.divemaster)
+		divemaster = data->divemaster;
+	if (what.buddy)
+		buddy = data->buddy;
+	if (what.suit)
+		suit = data->suit;
+	if (what.rating)
+		rating = data->rating;
+	if (what.visibility)
+		visibility = data->visibility;
+	if (what.divesite)
+		divesite = data->dive_site;
+	if (what.tags)
+		tags = taglist_copy(data->tag_list);
+	if (what.cylinders) {
+		for (int i = 0; i < MAX_CYLINDERS; ++i)
+			copy_cylinder(data->cylinder[i], cylinders[i]);
+	}
+	if (what.weights) {
+		for (int i = 0; i < MAX_WEIGHTSYSTEMS; ++i) {
+			weightsystems[i] = data->weightsystem[i];
+			weightsystems[i].description = copy_string(data->weightsystem[i].description);
+		}
+	}
+}
+
+PasteState::~PasteState()
+{
+	taglist_free(tags);
+	for (cylinder_t &c: cylinders)
+		free((void *)c.type.description);
+	for (weightsystem_t &w: weightsystems)
+		free((void *)w.description);
+}
+
+void PasteState::swap(dive_components what)
+{
+	if (what.notes)
+		swapCandQString(notes, d->notes);
+	if (what.divemaster)
+		swapCandQString(divemaster, d->divemaster);
+	if (what.buddy)
+		swapCandQString(buddy, d->buddy);
+	if (what.suit)
+		swapCandQString(suit, d->suit);
+	if (what.rating)
+		std::swap(rating, d->rating);
+	if (what.visibility)
+		std::swap(visibility, d->visibility);
+	if (what.divesite)
+		std::swap(divesite, d->dive_site);
+	if (what.tags)
+		std::swap(tags, d->tag_list);
+	if (what.cylinders)
+		std::swap(cylinders, d->cylinder);
+	if (what.weights)
+		std::swap(weightsystems, d->weightsystem);
+}
+
+// ***** Paste *****
+PasteDives::PasteDives(const dive *data, dive_components whatIn) : what(whatIn),
+	current(current_dive)
+{
+	std::vector<dive *> selection = getDiveSelection();
+	dives.reserve(selection.size());
+	for (dive *d: selection)
+		dives.emplace_back(d, data, what);
+
+	setText(tr("Paste onto %n dive(s)", "", dives.size()));
+}
+
+bool PasteDives::workToBeDone()
+{
+	return !dives.empty();
+}
+
+void PasteDives::undo()
+{
+	bool diveSiteListChanged = false;
+
+	// If we had taken ownership of dive sites, readd them to the system
+	for (OwningDiveSitePtr &ds: ownedDiveSites) {
+		register_dive_site(ds.release());
+		diveSiteListChanged = true;
+	}
+	ownedDiveSites.clear();
+
+	std::vector<dive *> divesToNotify; // Remember dives so that we can send signals later
+	divesToNotify.reserve(dives.size());
+	for (PasteState &state: dives) {
+		divesToNotify.push_back(state.d);
+		state.swap(what);
+		invalidate_dive_cache(state.d); // Ensure that dive is written in git_save()
+	}
+
+	// If dive sites were pasted, collect all overwritten dive sites
+	// and remove those which don't have users anymore from the core.
+	// But keep an owning pointer. Thus if this undo command is freed, the
+	// dive-site will be automatically deleted and on redo() it can be
+	// readded to the system
+	if (what.divesite) {
+		std::vector<dive_site *> divesites;
+		for (const PasteState &d: dives) {
+			if (std::find(divesites.begin(), divesites.end(), d.divesite) == divesites.end())
+				divesites.push_back(d.divesite);
+		}
+		for (dive_site *ds: divesites) {
+			unregister_dive_site(ds);
+			ownedDiveSites.emplace_back(ds);
+			diveSiteListChanged = true;
+		}
+	}
+
+	// Send signals.
+	// TODO: We send one signal per changed field. This means that the dive list may
+	// update the entry numerous times. Perhaps change the field-id into flags?
+	// There seems to be a number of enums / flags describing dive fields. Perhaps unify them all?
+	processByTrip(divesToNotify, [&](dive_trip *trip, const QVector<dive *> &divesInTrip) {
+		if (what.notes)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::NOTES);
+		if (what.divemaster)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::DIVEMASTER);
+		if (what.buddy)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::BUDDY);
+		if (what.suit)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::SUIT);
+		if (what.rating)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::RATING);
+		if (what.visibility)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::VISIBILITY);
+		if (what.divesite)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::DIVESITE);
+		if (what.tags)
+			emit diveListNotifier.divesChanged(trip, divesInTrip, DiveField::TAGS);
+	});
+
+	if (diveSiteListChanged)
+		MapWidget::instance()->reload();
+}
+
+// Redo and undo do the same
+void PasteDives::redo()
+{
+	undo();
+}
+
 } // namespace Command
diff --git a/desktop-widgets/command_edit.h b/desktop-widgets/command_edit.h
index 9b5923af2..1f627c7ef 100644
--- a/desktop-widgets/command_edit.h
+++ b/desktop-widgets/command_edit.h
@@ -211,6 +211,38 @@ public:
 	DiveField fieldId() const override;
 };
 
+// Fields we have to remember to undo paste
+struct PasteState {
+	dive *d;
+	dive_site *divesite;
+	QString notes;
+	QString divemaster;
+	QString buddy;
+	QString suit;
+	int rating;
+	int visibility;
+	tag_entry *tags;
+	cylinder_t cylinders[MAX_CYLINDERS];
+	weightsystem_t weightsystems[MAX_WEIGHTSYSTEMS];
+
+	PasteState(dive *d, const dive *data, dive_components what); // Read data from dive data for dive d
+	~PasteState();
+	void swap(dive_components what); // Exchange values here and in dive
+};
+
+class PasteDives  : public Base {
+	dive_components what;
+	std::vector<PasteState> dives;
+	std::vector<OwningDiveSitePtr> ownedDiveSites;
+	dive *current;
+public:
+	PasteDives(const dive *d, dive_components what);
+private:
+	void undo() override;
+	void redo() override;
+	bool workToBeDone() override;
+};
+
 } // namespace Command
 
 #endif
diff --git a/desktop-widgets/mainwindow.cpp b/desktop-widgets/mainwindow.cpp
index a181a8ceb..95b714d00 100644
--- a/desktop-widgets/mainwindow.cpp
+++ b/desktop-widgets/mainwindow.cpp
@@ -1802,9 +1802,7 @@ void MainWindow::on_copy_triggered()
 
 void MainWindow::on_paste_triggered()
 {
-	// take the data in our copyPasteDive and apply it to selected dives
-	selective_copy_dive(&copyPasteDive, &displayed_dive, what, false);
-	mainTab->showAndTriggerEditSelective(what);
+	Command::pasteDives(&copyPasteDive, what);
 }
 
 void MainWindow::on_actionFilterTags_triggered()
diff --git a/desktop-widgets/tab-widgets/maintab.cpp b/desktop-widgets/tab-widgets/maintab.cpp
index 84f64e0d0..8b23eb147 100644
--- a/desktop-widgets/tab-widgets/maintab.cpp
+++ b/desktop-widgets/tab-widgets/maintab.cpp
@@ -47,7 +47,6 @@ MainTab::MainTab(QWidget *parent) : QTabWidget(parent),
 	weightModel(new WeightModel(this)),
 	cylindersModel(new CylindersModel(this)),
 	editMode(NONE),
-	copyPaste(false),
 	lastSelectedDive(true),
 	lastTabSelectedDive(0),
 	lastTabSelectedDiveTrip(0),
@@ -288,7 +287,6 @@ void MainTab::enableEdition(EditMode newEditMode)
 	if (((newEditMode == DIVE || newEditMode == NONE) && current_dive == NULL) || editMode != NONE)
 		return;
 	modified = false;
-	copyPaste = false;
 	if ((newEditMode == DIVE || newEditMode == NONE) &&
 	    !isTripEdit &&
 	    current_dive->dc.model &&
@@ -700,22 +698,11 @@ void MainTab::reload()
 		mark_divelist_changed(true);                 \
 	} while (0)
 
-#define EDIT_TEXT(what)                                          \
-	if (same_string(mydive->what, cd->what) || copyPaste) {  \
-		free(mydive->what);                              \
-		mydive->what = copy_string(displayed_dive.what); \
-	}
-
 MainTab::EditMode MainTab::getEditMode() const
 {
 	return editMode;
 }
 
-#define EDIT_VALUE(what)                             \
-	if (mydive->what == cd->what || copyPaste) { \
-		mydive->what = displayed_dive.what;  \
-	}
-
 void MainTab::refreshDisplayedDiveSite()
 {
 	struct dive_site *ds = get_dive_site_for_dive(&displayed_dive);
@@ -812,7 +799,7 @@ void MainTab::acceptChanges()
 			MODIFY_DIVES(selectedDives,
 				for (int i = 0; i < MAX_CYLINDERS; i++) {
 					if (mydive != cd) {
-						if (same_string(mydive->cylinder[i].type.description, cd->cylinder[i].type.description) || copyPaste) {
+						if (same_string(mydive->cylinder[i].type.description, cd->cylinder[i].type.description)) {
 							// if we started out with the same cylinder description (for multi-edit) or if we do copt & paste
 							// make sure that we have the same cylinder type and copy the gasmix, but DON'T copy the start
 							// and end pressures (those are per dive after all)
@@ -855,7 +842,7 @@ void MainTab::acceptChanges()
 			mark_divelist_changed(true);
 			MODIFY_DIVES(selectedDives,
 				for (int i = 0; i < MAX_WEIGHTSYSTEMS; i++) {
-					if (mydive != cd && (copyPaste || same_string(mydive->weightsystem[i].description, cd->weightsystem[i].description))) {
+					if (mydive != cd && (same_string(mydive->weightsystem[i].description, cd->weightsystem[i].description))) {
 						mydive->weightsystem[i] = displayed_dive.weightsystem[i];
 						mydive->weightsystem[i].description = copy_string(displayed_dive.weightsystem[i].description);
 					}
@@ -1173,8 +1160,6 @@ void MainTab::on_visibility_valueChanged(int value)
 }
 
 #undef MODIFY_DIVES
-#undef EDIT_TEXT
-#undef EDIT_VALUE
 
 void MainTab::editCylinderWidget(const QModelIndex &index)
 {
@@ -1216,43 +1201,3 @@ void MainTab::clearTabs() {
 	}
 	clearEquipment();
 }
-
-#define SHOW_SELECTIVE(_component) \
-	if (what._component)       \
-		ui._component->setText(displayed_dive._component);
-
-void MainTab::showAndTriggerEditSelective(struct dive_components what)
-{
-	// take the data in our copyPasteDive and apply it to selected dives
-	enableEdition();
-	copyPaste = true;
-	SHOW_SELECTIVE(buddy);
-	SHOW_SELECTIVE(divemaster);
-	SHOW_SELECTIVE(suit);
-	if (what.notes) {
-		QString tmp(displayed_dive.notes);
-		if (tmp.contains("<div")) {
-			tmp.replace(QString("\n"), QString("<br>"));
-			ui.notes->setHtml(tmp);
-		} else {
-			ui.notes->setPlainText(tmp);
-		}
-	}
-	if (what.rating)
-		ui.rating->setCurrentStars(displayed_dive.rating);
-	if (what.visibility)
-		ui.visibility->setCurrentStars(displayed_dive.visibility);
-	if (what.divesite)
-		ui.location->setCurrentDiveSite(displayed_dive.dive_site);
-	if (what.tags) {
-		ui.tagWidget->setText(get_taglist_string(displayed_dive.tag_list));
-	}
-	if (what.cylinders) {
-		cylindersModel->updateDive();
-		cylindersModel->changed = true;
-	}
-	if (what.weights) {
-		weightModel->updateDive();
-		weightModel->changed = true;
-	}
-}
diff --git a/desktop-widgets/tab-widgets/maintab.h b/desktop-widgets/tab-widgets/maintab.h
index 5d341d287..83a19895a 100644
--- a/desktop-widgets/tab-widgets/maintab.h
+++ b/desktop-widgets/tab-widgets/maintab.h
@@ -55,7 +55,6 @@ public:
 	void updateCoordinatesText(qreal lat, qreal lon);
 	void refreshDisplayedDiveSite();
 	void nextInputField(QKeyEvent *event);
-	void showAndTriggerEditSelective(struct dive_components what);
 
 signals:
 	void addDiveFinished();
@@ -113,7 +112,6 @@ private:
 	TagCompletionModel tagModel;
 	Completers completers;
 	bool modified;
-	bool copyPaste;
 	bool lastSelectedDive;
 	int lastTabSelectedDive;
 	int lastTabSelectedDiveTrip;