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Moved performing of Undo/Redo from Editor::Paint to Editor::Scene.

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This commit is contained in:
23rd 2021-07-08 01:03:00 +03:00
parent aef2148ed0
commit 1e3044fbf4
3 changed files with 25 additions and 12 deletions
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16
Telegram/SourceFiles/editor/editor_paint.cpp
View file

@ -67,18 +67,10 @@ Paint::Paint(
// Undo / Redo.
controllers->undoController->performRequestChanges(
) | rpl::start_with_next([=](const Undo &command) {
const auto isUndo = (command == Undo::Undo);
const auto filtered = _scene->items(isUndo
? Qt::DescendingOrder
: Qt::AscendingOrder);
auto proj = [&](const ItemPtr &i) {
return isUndo ? i->isVisible() : isItemHidden(i);
};
const auto it = ranges::find_if(filtered, std::move(proj));
if (it != filtered.end()) {
(*it)->setVisible(!isUndo);
if (command == Undo::Undo) {
_scene->performUndo();
} else {
_scene->performRedo();
}
_hasUndo = _scene->hasUndo();

18
Telegram/SourceFiles/editor/scene/scene.cpp
View file

@ -171,6 +171,24 @@ bool Scene::hasRedo() const {
return ranges::any_of(_items, &NumberedItem::isUndidStatus);
}
void Scene::performUndo() {
const auto filtered = items(Qt::DescendingOrder);
const auto it = ranges::find_if(filtered, &NumberedItem::isNormalStatus);
if (it != filtered.end()) {
(*it)->setStatus(NumberedItem::Status::Undid);
}
}
void Scene::performRedo() {
const auto filtered = items(Qt::AscendingOrder);
const auto it = ranges::find_if(filtered, &NumberedItem::isUndidStatus);
if (it != filtered.end()) {
(*it)->setStatus(NumberedItem::Status::Normal);
}
}
Scene::~Scene() {
// Prevent destroying by scene of all items.
QGraphicsScene::removeItem(_canvas.get());

3
Telegram/SourceFiles/editor/scene/scene.h
View file

@ -52,6 +52,9 @@ public:
[[nodiscard]] bool hasUndo() const;
[[nodiscard]] bool hasRedo() const;
void performUndo();
void performRedo();
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;