feat(#6716): ✨ added effect categories

include/EffectCategory.h

@@ -0,0 +1,49 @@
+/*
+ * EffectCategory - Associates an effect to a category (for grouping/filtering afterwards)
+ *
+ * This file is part of LMMS - https://lmms.io
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program (see COPYING); if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef LMMS_EFFECT_CATEGORY_H
+#define LMMS_EFFECT_CATEGORY_H
+
+#include <qlabel.h>
+#include <qlist.h>
+#include <qobject.h>
+
+#include "lmms_export.h"
+namespace lmms 
+{
+
+class LMMS_EXPORT EffectCategory
+{
+public:
+	static EffectCategory* instance();
+	QString getCategoryName(QString effectName);
+	QStringList* getCategories();
+private:
+	static std::unique_ptr<EffectCategory> s_instance;
+	QStringList* m_categories;
+	QStringList* getCategoriesFromMap(std::map<QString,QString> map);
+};
+
+// Short-hand function
+LMMS_EXPORT EffectCategory* getEffectCategory();
+} // namespace lmms
+#endif // LMMS_EFFECT_CATEGORY_H

include/EffectSelectDialog.h

@@ -20,7 +20,6 @@
  * License along with this program (see COPYING); if not, write to the
  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301 USA.
- *
  */
 
 #ifndef LMMS_GUI_EFFECT_SELECT_DIALOG_H
@@ -32,6 +31,7 @@
 #include <QRegularExpression>
 #include <QSortFilterProxyModel>
 #include <QStandardItemModel>
+#include <qboxlayout.h>
 
 class QScrollArea;
 class QTableView;
@@ -40,11 +40,11 @@ class QLineEdit;
 namespace lmms::gui
 {
 
-class DualColumnFilterProxyModel : public QSortFilterProxyModel
+class MultipleColumnFilterProxyModel : public QSortFilterProxyModel
 {
 	Q_OBJECT
 public:
-	DualColumnFilterProxyModel(QObject* parent = nullptr) : QSortFilterProxyModel(parent)
+	MultipleColumnFilterProxyModel(QObject* parent = nullptr) : QSortFilterProxyModel(parent)
 	{
 	}
 
@@ -54,27 +54,36 @@ class DualColumnFilterProxyModel : public QSortFilterProxyModel
 		invalidateFilter();
 	}
 
+	void setEffectCategoryFilter(const QString& filter)
+	{
+		m_effectCategoryFilter = filter;
+		invalidateFilter();
+	}
+
 protected:
 	bool filterAcceptsRow(int source_row, const QModelIndex& source_parent) const override
 	{
 		QModelIndex nameIndex = sourceModel()->index(source_row, 0, source_parent);
-		QModelIndex typeIndex = sourceModel()->index(source_row, 1, source_parent);
+		QModelIndex categoryIndex = sourceModel()->index(source_row, 1, source_parent);
+		QModelIndex typeIndex = sourceModel()->index(source_row, 2, source_parent);
 
 		QString name = sourceModel()->data(nameIndex, Qt::DisplayRole).toString();
+		QString category = sourceModel()->data(categoryIndex, Qt::DisplayRole).toString();
 		QString type = sourceModel()->data(typeIndex, Qt::DisplayRole).toString();
 
 		QRegularExpression nameRegularExpression(filterRegularExpression());
 		nameRegularExpression.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
 
 		bool nameFilterPassed = nameRegularExpression.match(name).capturedStart() != -1;
-
 		bool typeFilterPassed = type.contains(m_effectTypeFilter, Qt::CaseInsensitive);
+		bool categoryFilterPassed = category.contains(m_effectCategoryFilter, Qt::CaseInsensitive);
 
-		return nameFilterPassed && typeFilterPassed;
+		return nameFilterPassed && typeFilterPassed && categoryFilterPassed;
 	}
 
 private:
 	QString m_effectTypeFilter;
+	QString m_effectCategoryFilter;
 };
 
 
@@ -98,11 +107,14 @@ protected slots:
 	EffectKey m_currentSelection;
 
 	QStandardItemModel m_sourceModel;
-	DualColumnFilterProxyModel m_model;
+	MultipleColumnFilterProxyModel m_model;
 	QWidget* m_descriptionWidget;
 	QTableView* m_pluginList;
 	QScrollArea* m_scrollArea;
 	QLineEdit* m_filterEdit;
+	QHBoxLayout* buildFiltersLayout();
+	QHBoxLayout* buildTypeFilterLayout();
+	QHBoxLayout* buildCategoryFilterLayout();
 };
 
 } // namespace lmms::gui

src/core/CMakeLists.txt

@@ -21,6 +21,7 @@ set(LMMS_SRCS
 	core/DataFile.cpp
 	core/DrumSynth.cpp
 	core/Effect.cpp
+	core/EffectCategory.cpp
 	core/EffectChain.cpp
 	core/Engine.cpp
 	core/EnvelopeAndLfoParameters.cpp