PostProcessing: Refactor config to use separate sections

src/duckstation-qt/postprocessingsettingswidget.h

@@ -2,34 +2,74 @@
 // SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
 
 #pragma once
-#include "postprocessingchainconfigwidget.h"
-#include "postprocessingshaderconfigwidget.h"
+
 #include "ui_postprocessingsettingswidget.h"
+
+#include "util/postprocessing.h"
+
 #include <QtWidgets/QWidget>
 
 class SettingsDialog;
+class PostProcessingShaderConfigWidget;
 
 class PostProcessingSettingsWidget : public QWidget
 {
   Q_OBJECT
 
+  friend PostProcessingShaderConfigWidget;
+
 public:
   PostProcessingSettingsWidget(SettingsDialog* dialog, QWidget* parent);
   ~PostProcessingSettingsWidget();
 
 private Q_SLOTS:
-  void onChainAboutToChange();
-  void onChainSelectedShaderChanged(qint32 index);
-  void onConfigChanged(const std::string& new_config);
-  void onReloadClicked();
+  void onAddButtonClicked();
+  void onRemoveButtonClicked();
+  void onClearButtonClicked();
+  void onMoveUpButtonClicked();
+  void onMoveDownButtonClicked();
+  void onReloadButtonClicked();
+  void onSelectedShaderChanged();
 
 private:
+  SettingsInterface& getSettingsInterfaceToUpdate();
+  void commitSettingsUpdate();
+
   void connectUi();
-  void updateShaderConfigPanel(s32 index);
-  
+  void updateButtonsAndConfigPane(std::optional<u32> index);
+  std::optional<u32> getSelectedIndex() const;
+  void selectIndex(s32 index);
+  void updateList(const SettingsInterface& si);
+  void updateList();
+
   SettingsDialog* m_dialog;
 
   Ui::PostProcessingSettingsWidget m_ui;
 
   PostProcessingShaderConfigWidget* m_shader_config = nullptr;
 };
+
+class PostProcessingShaderConfigWidget : public QWidget
+{
+  Q_OBJECT
+
+public:
+  PostProcessingShaderConfigWidget(QWidget* parent, PostProcessingSettingsWidget* widget, u32 stage_index,
+                                   std::vector<PostProcessing::ShaderOption> options);
+  ~PostProcessingShaderConfigWidget();
+
+private Q_SLOTS:
+  void onResetDefaultsClicked();
+
+protected:
+  void createUi();
+  void updateConfigForOption(const PostProcessing::ShaderOption& option);
+
+  QGridLayout* m_layout;
+
+  PostProcessingSettingsWidget* m_widget;
+  std::vector<QWidget*> m_widgets;
+
+  u32 m_stage_index;
+  std::vector<PostProcessing::ShaderOption> m_options;
+};