implement entire project in nodes

Project items are now represented directly in nodes opening up more versatility and possibilities. This is the first iteration of this and will be buggy. Need to test thoroughly.

app/dialog/sequence/sequencedialogpresettab.cpp

@@ -79,12 +79,19 @@ SequenceDialogPresetTab::SequenceDialogPresetTab(QWidget* parent) :
   }
 }
 
+SequenceDialogPresetTab::~SequenceDialogPresetTab()
+{
+  qDeleteAll(child_presets_);
+}
+
 void SequenceDialogPresetTab::SaveParametersAsPreset(SequencePreset preset)
 {
-  PresetPtr preset_ptr = std::make_shared<SequencePreset>(preset);
+  Preset* preset_ptr = new SequencePreset(preset);
 
   if (SavePreset(preset_ptr)) {
     AddCustomItem(my_presets_folder_, preset_ptr, GetNumberOfPresets() - 1);
+  } else {
+    delete preset_ptr;
   }
 }
 
@@ -205,19 +212,19 @@ QTreeWidgetItem *SequenceDialogPresetTab::GetSelectedCustomPreset()
   return nullptr;
 }
 
-void SequenceDialogPresetTab::AddStandardItem(QTreeWidgetItem *folder, PresetPtr preset, const QString& description)
+void SequenceDialogPresetTab::AddStandardItem(QTreeWidgetItem *folder, Preset* preset, const QString& description)
 {
   int index = default_preset_data_.size();
   default_preset_data_.append(preset);
   AddItemInternal(folder, preset, false, index, description);
 }
 
-void SequenceDialogPresetTab::AddCustomItem(QTreeWidgetItem *folder, PresetPtr preset, int index, const QString &description)
+void SequenceDialogPresetTab::AddCustomItem(QTreeWidgetItem *folder, Preset* preset, int index, const QString &description)
 {
   AddItemInternal(folder, preset, true, index, description);
 }
 
-void SequenceDialogPresetTab::AddItemInternal(QTreeWidgetItem *folder, PresetPtr preset, bool is_custom, int index, const QString &description)
+void SequenceDialogPresetTab::AddItemInternal(QTreeWidgetItem *folder, Preset* preset, bool is_custom, int index, const QString &description)
 {
   QTreeWidgetItem* item = new QTreeWidgetItem();
 
@@ -228,6 +235,8 @@ void SequenceDialogPresetTab::AddItemInternal(QTreeWidgetItem *folder, PresetPtr
   item->setData(0, kDataPresetIsCustomRole, is_custom);
   item->setData(0, kDataPresetDataRole, index);
 
+  child_presets_.append(preset);
+
   folder->addChild(item);
 }
 
@@ -238,11 +247,11 @@ void SequenceDialogPresetTab::SelectedItemChanged(QTreeWidgetItem* current, QTre
   if (current->data(0, kDataIsPreset).toBool()) {
     int preset_index = current->data(0, kDataPresetDataRole).toInt();
 
-    PresetPtr preset_data = (current->data(0, kDataPresetIsCustomRole).toBool())
+    Preset* preset_data = (current->data(0, kDataPresetIsCustomRole).toBool())
         ? GetPreset(preset_index)
         : default_preset_data_.at(preset_index);
 
-    emit PresetChanged(*static_cast<SequencePreset*>(preset_data.get()));
+    emit PresetChanged(*static_cast<SequencePreset*>(preset_data));
   }
 }