347 lines
11 KiB
C++
347 lines
11 KiB
C++
#include "Document/ProjectWorkspace.h"
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#include "IO/ImageFileDrop.h"
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#include "Logging.h"
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#include <QFileDialog>
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#include <QFileInfo>
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#include <QTimer>
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const QString ProjectWorkspace::layerType = QStringLiteral("com.compositor.layer-row");
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ProjectTab::ProjectTab(QString name) : defaultName(std::move(name)), controller(session) {}
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QString ProjectTab::nameWithoutSuffix(const QString &path)
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{
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// As Swift's deletingPathExtension: `.comp` alone is all name.
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const QString name = QFileInfo(path).fileName();
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const qsizetype dot = name.lastIndexOf(QLatin1Char('.'));
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return dot > 0 && dot < name.size() - 1 ? name.left(dot) : name;
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}
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QString ProjectTab::title() const
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{
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return session.projectPath() ? nameWithoutSuffix(*session.projectPath()) : defaultName;
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}
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ProjectWorkspace::ProjectWorkspace()
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{
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const auto first = std::make_shared<ProjectTab>(QStringLiteral("Untitled"));
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first->session.skipsInitialClipboardCanvasSize = true;
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first->controller.workspace = this;
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m_tabs = {first};
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m_selectedID = first->id;
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}
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std::shared_ptr<ProjectTab> ProjectWorkspace::tab(QUuid id) const
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{
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for (const std::shared_ptr<ProjectTab> &each : m_tabs) {
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if (each->id == id)
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return each;
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}
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return nullptr;
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}
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ProjectTab &ProjectWorkspace::current() const
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{
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const std::shared_ptr<ProjectTab> selected = tab(m_selectedID);
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return selected ? *selected : *m_tabs.front();
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}
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bool ProjectWorkspace::canSwitch() const
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{
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return !m_isManaging && current().session.canStartProjectOperation() && !current().session.hueSaturation() && !current().session.filterEdit()
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&& !current().session.gradientEdit() && !current().session.pixelMove() && !current().session.colorPicker();
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}
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void ProjectWorkspace::setManaging(bool managing)
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{
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m_isManaging = managing;
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emit changed();
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}
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void ProjectWorkspace::finish(const std::function<void()> &done)
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{
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// The caller goes on first, like a resumed Swift task.
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if (done)
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QMetaObject::invokeMethod(this, done, Qt::QueuedConnection);
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}
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void ProjectWorkspace::finish(const std::function<void(bool)> &done, bool value)
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{
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if (done)
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QMetaObject::invokeMethod(this, [done, value] { done(value); }, Qt::QueuedConnection);
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}
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ProjectTab &ProjectWorkspace::addTab(bool reuseEmpty)
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{
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if (reuseEmpty && m_tabs.size() == 1 && !current().session.document())
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return current();
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const auto added = std::make_shared<ProjectTab>(QStringLiteral("Untitled %1").arg(m_nextNumber));
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m_nextNumber += 1;
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added->controller.workspace = this;
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added->controller.window = window;
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m_tabs.push_back(added);
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m_selectedID = added->id;
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emit changed();
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return *added;
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}
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void ProjectWorkspace::select(QUuid id)
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{
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if (id == m_selectedID || !canSwitch() || !tab(id))
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return;
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current().session.commitTransform();
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m_selectedID = id;
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current().controller.window = window;
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emit changed();
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}
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void ProjectWorkspace::newCanvas()
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{
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if (!canSwitch())
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return;
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current().session.commitTransform();
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addTab(false);
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}
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void ProjectWorkspace::open(std::optional<QString> path, std::function<void(bool)> done)
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{
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if (!canSwitch()) {
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finish(done, false);
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return;
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}
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setManaging(true);
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const auto end = [this, done](bool opened) {
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setManaging(false);
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finish(done, opened);
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};
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if (path) {
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loadProject(*path, end);
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return;
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}
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// A project is a folder here: one a dialog.
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auto *panel = new QFileDialog(window, QStringLiteral("Open Project"));
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panel->setAttribute(Qt::WA_DeleteOnClose);
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panel->setFileMode(QFileDialog::Directory);
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connect(panel, &QDialog::finished, this, [this, panel, end](int result) {
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if (result != QDialog::Accepted) {
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end(false);
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return;
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}
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loadProject(panel->selectedFiles().value(0), end);
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});
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panel->open();
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}
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void ProjectWorkspace::loadProject(const QString &path, std::function<void(bool)> then)
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{
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for (const std::shared_ptr<ProjectTab> &existing : m_tabs) {
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if (ProjectController::samePlace(existing->session.projectPath(), path)) {
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m_selectedID = existing->id;
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emit changed();
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then(true);
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return;
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}
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}
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// Loaded unattached: a failed open leaves no broken tab.
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const auto loading = std::make_shared<ProjectTab>(ProjectTab::nameWithoutSuffix(path));
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loading->controller.window = window;
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// That tab's controller answers, perhaps after this is gone.
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loading->controller.open(path, [self = QPointer<ProjectWorkspace>(this), loading, then](bool opened) {
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if (!self)
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return;
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if (!opened) {
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then(false);
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return;
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}
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if (self->m_tabs.size() == 1 && !self->current().session.document())
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self->m_tabs.clear();
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loading->controller.workspace = self;
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self->m_tabs.push_back(loading);
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self->m_selectedID = loading->id;
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emit self->changed();
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then(true);
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});
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}
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void ProjectWorkspace::close(QUuid id, std::function<void()> done)
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{
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const std::shared_ptr<ProjectTab> closing = tab(id);
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if (!canSwitch() || !closing) {
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finish(done);
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return;
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}
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setManaging(true);
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closing->controller.window = window;
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// Held here, the tab outlives its own controller's answer.
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closing->controller.confirmQuit([self = QPointer<ProjectWorkspace>(this), closing, done](bool confirmed) {
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if (!self)
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return;
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if (confirmed)
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self->removeTab(closing->id);
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self->setManaging(false);
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self->finish(done);
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});
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}
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void ProjectWorkspace::removeTab(QUuid id)
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{
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size_t index = 0;
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while (index < m_tabs.size() && m_tabs[index]->id != id)
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index += 1;
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// Nothing erased is nothing changed: no iterator to trust.
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if (std::erase_if(m_tabs, [&](const std::shared_ptr<ProjectTab> &each) { return each->id == id; }) == 0)
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return;
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if (m_tabs.empty())
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addTab(false);
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else if (m_selectedID == id)
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m_selectedID = m_tabs[std::min(index, m_tabs.size() - 1)]->id;
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emit changed();
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}
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std::vector<std::shared_ptr<ProjectTab>> ProjectWorkspace::quitOrder() const
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{
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// The project on screen first, then the rest in order.
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std::vector<std::shared_ptr<ProjectTab>> order{tab(current().id)};
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for (const std::shared_ptr<ProjectTab> &each : m_tabs) {
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if (each->id != current().id)
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order.push_back(each);
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}
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return order;
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}
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void ProjectWorkspace::confirmQuit(std::function<void(bool)> done)
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{
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if (!canSwitch()) {
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finish(done, false);
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return;
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}
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setManaging(true);
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askNext(quitOrder(), 0, std::move(done));
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}
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void ProjectWorkspace::askNext(std::vector<std::shared_ptr<ProjectTab>> order, size_t index, std::function<void(bool)> done)
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{
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if (index == order.size()) {
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setManaging(false);
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finish(done, true);
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return;
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}
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const std::shared_ptr<ProjectTab> asked = order[index];
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m_selectedID = asked->id;
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asked->controller.window = window;
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emit changed();
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asked->controller.confirmQuit([self = QPointer<ProjectWorkspace>(this), order, index, done](bool confirmed) {
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if (!self)
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return;
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if (confirmed) {
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self->askNext(order, index + 1, done);
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return;
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}
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self->setManaging(false);
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self->finish(done, false);
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});
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}
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void ProjectWorkspace::closeWindow(QWidget *closing)
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{
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confirmQuit([this, closing = QPointer<QWidget>(closing)](bool confirmed) {
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if (!confirmed)
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return;
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m_tabs.clear();
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addTab(false);
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// The window's close asks us; this mark lets it through.
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if (closing) {
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closing->setProperty("closeConfirmed", true);
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closing->close();
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}
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});
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}
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void ProjectWorkspace::receive(const QList<QUrl> &urls, std::optional<QUuid> destination, std::optional<QPointF> point,
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std::function<void()> done)
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{
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// Swift sleeps 30 ms between looks; so does this.
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if (!canSwitch()) {
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QTimer::singleShot(30, this, [=, this] { receive(urls, destination, point, done); });
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return;
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}
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setManaging(true);
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receiveNext(urls, destination, point, std::move(done));
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}
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void ProjectWorkspace::receiveNext(QList<QUrl> urls, std::optional<QUuid> destination, std::optional<QPointF> point,
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std::function<void()> done)
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{
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if (urls.isEmpty()) {
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setManaging(false);
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finish(done);
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return;
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}
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const QUrl url = urls.takeFirst();
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const auto next = [=, this] { receiveNext(urls, destination, point, done); };
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// A project opens its own tab; a picture joins one.
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if (ProjectController::isProject(url)) {
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loadProject(url.toLocalFile(), [next](bool) { next(); });
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return;
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}
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const std::shared_ptr<ProjectTab> into = destination ? tab(*destination) : tab(addTab().id);
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if (!into) {
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next();
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return;
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}
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m_selectedID = into->id;
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emit changed();
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// The callback keeps the tab alive, as Swift's await does.
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into->session.importImages({url}, point, [self = QPointer<ProjectWorkspace>(this), into, next] {
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if (self)
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next();
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});
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}
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void ProjectWorkspace::receiveProviders(const QMimeData &data, std::optional<QUuid> destination, std::optional<QPointF> point,
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std::function<void()> done)
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{
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if (data.hasFormat(layerType))
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copyNext(layerIDs(data), destination, point, std::move(done));
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else
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importNext(ImageFileDrop::providers(data), destination, point, std::move(done));
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}
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// One provider after another, as Swift awaits each.
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void ProjectWorkspace::importNext(std::vector<std::shared_ptr<QMimeData>> providers, std::optional<QUuid> destination, std::optional<QPointF> point,
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std::function<void()> done)
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{
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if (providers.empty()) {
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finish(done);
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return;
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}
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const std::shared_ptr<QMimeData> provider = providers.front();
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providers.erase(providers.begin());
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// The front tab hears what failed; it stays alive.
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const std::shared_ptr<ProjectTab> front = tab(m_selectedID);
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ImageFileDrop::importProviders(*provider, front->session, point, this, destination,
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[self = QPointer<ProjectWorkspace>(this), front, providers = std::move(providers), destination, point, done]() mutable {
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if (self)
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self->importNext(std::move(providers), destination, point, std::move(done));
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});
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}
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std::optional<QUuid> ProjectWorkspace::layerID(const QString &text)
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{
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const QString trimmed = text.trimmed();
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const QUuid id = QUuid::fromString(trimmed);
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if (uuidString(id).compare(trimmed, Qt::CaseInsensitive) != 0)
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return std::nullopt;
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return id;
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}
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std::vector<QUuid> ProjectWorkspace::layerIDs(const QMimeData &data)
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{
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std::vector<QUuid> ids;
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for (const QString &line : QString::fromUtf8(data.data(layerType)).split(QLatin1Char('\n'))) {
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if (const std::optional<QUuid> id = layerID(line))
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ids.push_back(*id);
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}
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return ids;
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}
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