Add support for predefined data views

libshvvisu/include/shv/visu/logview/dataviewwidget.h

@@ -21,13 +21,17 @@ class SHVVISU_DECL_EXPORT DataViewWidget : public QWidget
 	~DataViewWidget() override;
 
 	void init(const QString &site_path, timeline::Graph *graph);
+	void setPredefinedViews(const QVector<timeline::Graph::VisualSettings> &views);
+	const QVector<timeline::Graph::VisualSettings> &predefinedViews();
+	void applyPredefinedView(const QString &name);
 
 private:
 	void onShowChannelFilterClicked();
 	void onShowRawDataClicked();
 
 	timeline::Graph *m_graph = nullptr;
 	QString m_sitePath;
+	QVector<timeline::Graph::VisualSettings> m_predefinedViews;
 
 	Ui::DataViewWidget *ui;
 };

libshvvisu/include/shv/visu/timeline/channelfilterdialog.h

@@ -20,7 +20,7 @@ class SHVVISU_DECL_EXPORT ChannelFilterDialog : public QDialog
 	Q_OBJECT
 
 public:
-	explicit ChannelFilterDialog(QWidget *parent, const QString &site_path, Graph *graph);
+	explicit ChannelFilterDialog(QWidget *parent, const QString &site_path, Graph *graph, const QVector<Graph::VisualSettings> &views = {});
 	~ChannelFilterDialog() override;
 
 	std::optional<ChannelFilter> channelFilter();
@@ -58,6 +58,7 @@ class SHVVISU_DECL_EXPORT ChannelFilterDialog : public QDialog
 	ChannelFilterSortFilterProxyModel *m_channelsFilterProxyModel = nullptr;
 	QString m_sitePath;
 	QString m_recentSettingsDir;
+	QVector<timeline::Graph::VisualSettings> m_predefinedDataViews;
 
 	QAction *m_saveViewAction = nullptr;
 	QAction *m_saveViewAsAction = nullptr;

libshvvisu/src/logview/dataviewwidget.cpp

@@ -42,9 +42,29 @@ void DataViewWidget::init(const QString &site_path, timeline::Graph *graph)
 	ui->pbShowRawData->setIcon(m_graph->style().isRawDataVisible()? QIcon(QStringLiteral(":/shv/visu/images/raw.svg")): QIcon(QStringLiteral(":/shv/visu/images/raw-off.svg")));
 }
 
+void DataViewWidget::setPredefinedViews(const QVector<timeline::Graph::VisualSettings> &views)
+{
+	m_predefinedViews = views;
+}
+
+const QVector<timeline::Graph::VisualSettings> &DataViewWidget::predefinedViews()
+{
+	return m_predefinedViews;
+}
+
+void DataViewWidget::applyPredefinedView(const QString &name)
+{
+	for (const auto &v: m_predefinedViews) {
+		if (v.name == name) {
+			m_graph->setVisualSettingsAndChannelFilter(v);
+			return;
+		}
+	}
+}
+
 void DataViewWidget::onShowChannelFilterClicked()
 {
-	auto *channel_filter_dialog = new tl::ChannelFilterDialog(this, m_sitePath, m_graph);
+	auto *channel_filter_dialog = new tl::ChannelFilterDialog(this, m_sitePath, m_graph, m_predefinedViews);
 
 	if (channel_filter_dialog->exec() == QDialog::Accepted) {
 		m_graph->setChannelFilter(channel_filter_dialog->channelFilter());

libshvvisu/src/timeline/channelfilterdialog.cpp

@@ -17,7 +17,7 @@ namespace shv::visu::timeline {
 
 static const QString FLATLINE_VIEW_SETTINGS_FILE_EXTENSION = QStringLiteral(".fvs");
 
-ChannelFilterDialog::ChannelFilterDialog(QWidget *parent, const QString &site_path, Graph *graph) :
+ChannelFilterDialog::ChannelFilterDialog(QWidget *parent, const QString &site_path, Graph *graph, const QVector<Graph::VisualSettings> &predefined_data_views) :
 	QDialog(parent),
 	ui(new Ui::ChannelFilterDialog)
 {
@@ -48,16 +48,19 @@ ChannelFilterDialog::ChannelFilterDialog(QWidget *parent, const QString &site_pa
 	ui->gbFilterSettings->setChecked(true);
 
 	m_channelsFilterModel->createNodes();
+	m_predefinedDataViews = predefined_data_views;
 
 	loadChannelFilterFomGraph();
 	reloadDataViewsCombobox();
 
 	std::optional<ChannelFilter> chf = m_graph->channelFilter();
 
-	if (chf && !chf.value().name().isEmpty())
+	if (chf && !chf.value().name().isEmpty()) {
 		ui->cbDataView->setCurrentText(chf.value().name());
-	else
+	}
+	else {
 		ui->cbDataView->setCurrentIndex(-1);
+	}
 
 	refreshActions();
 
@@ -97,6 +100,15 @@ void ChannelFilterDialog::applyTextFilter()
 void ChannelFilterDialog::reloadDataViewsCombobox()
 {
 	ui->cbDataView->clear();
+
+	for (const auto &v: m_predefinedDataViews) {
+		ui->cbDataView->addItem(v.name);
+	}
+
+	if (ui->cbDataView->count() > 0) {
+		ui->cbDataView->insertSeparator(ui->cbDataView->count());
+	}
+
 	ui->cbDataView->addItems(m_graph->savedVisualSettingsNames(m_sitePath));
 }
 
@@ -150,9 +162,11 @@ void ChannelFilterDialog::importDataView()
 
 void ChannelFilterDialog::refreshActions()
 {
-	m_saveViewAction->setEnabled(!ui->cbDataView->currentText().isEmpty());
-	m_deleteViewAction->setEnabled(!ui->cbDataView->currentText().isEmpty());
-	m_resetViewAction->setEnabled(!ui->cbDataView->currentText().isEmpty());
+	bool is_action_enabled = (!ui->cbDataView->currentText().isEmpty() && ui->cbDataView->currentIndex() >= m_predefinedDataViews.count());
+
+	m_saveViewAction->setEnabled(is_action_enabled);
+	m_deleteViewAction->setEnabled(is_action_enabled);
+	m_resetViewAction->setEnabled(is_action_enabled);
 }
 
 void ChannelFilterDialog::saveDataView()
@@ -274,7 +288,13 @@ void ChannelFilterDialog::setVisibleItemsCheckState_helper(const QModelIndex &mi
 void ChannelFilterDialog::onDataViewComboboxChanged(int index)
 {
 	if (index >= 0) { //ignore event with index = -1, which is emmited from clear() method
-		m_graph->loadVisualSettings(m_sitePath, ui->cbDataView->currentText());
+		if (index < m_predefinedDataViews.count()) {
+			m_graph->setVisualSettingsAndChannelFilter(m_predefinedDataViews[index]);
+		}
+		else {
+			m_graph->loadVisualSettings(m_sitePath, ui->cbDataView->currentText());
+		}
+
 		loadChannelFilterFomGraph();
 	}
 	refreshActions();

libshvvisu/src/timeline/graph.cpp

@@ -1239,7 +1239,11 @@ void Graph::setVisualSettingsAndChannelFilter(const VisualSettings &settings)
 			GraphChannel *channel = m_channels[j];
 			if (channel->shvPath() == channel_settings.shvPath) {
 				permitted_paths.insert(channel_settings.shvPath);
-				channel->setStyle(channel_settings.style);
+
+				if (!channel_settings.style.isEmpty()) {
+					channel->setStyle(channel_settings.style);;
+				}
+
 				m_channels.insert(i, m_channels.takeAt(j));
 				break;
 			}