Qt/GameConfigWidget: Complete overhaul

8 files changed, 554 insertions, 61 deletions

diff --git a/Source/Core/DolphinQt/CMakeLists.txt b/Source/Core/DolphinQt/CMakeLists.txt
index 3d987cae90..04100f7465 100644
--- a/Source/Core/DolphinQt/CMakeLists.txt
+++ b/Source/Core/DolphinQt/CMakeLists.txt
@@ -30,6 +30,8 @@ add_executable(dolphin-emu
   Config/CheatWarningWidget.cpp
   Config/ControllersWindow.cpp
   Config/FilesystemWidget.cpp
+  Config/GameConfigEdit.cpp
+  Config/GameConfigHighlighter.cpp
   Config/GameConfigWidget.cpp
   Config/GeckoCodeWidget.cpp
   Config/Graphics/AdvancedWidget.cpp
diff --git a/Source/Core/DolphinQt/Config/GameConfigEdit.cpp b/Source/Core/DolphinQt/Config/GameConfigEdit.cpp
new file mode 100644
index 0000000000..762445e2c9
--- /dev/null
+++ b/Source/Core/DolphinQt/Config/GameConfigEdit.cpp
@@ -0,0 +1,311 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "DolphinQt/Config/GameConfigEdit.h"
+
+#include <QAbstractItemView>
+#include <QCompleter>
+#include <QDesktopServices>
+#include <QFile>
+#include <QMenu>
+#include <QMenuBar>
+#include <QMessageBox>
+#include <QScrollBar>
+#include <QStringListModel>
+#include <QTextCursor>
+#include <QTextEdit>
+#include <QToolButton>
+#include <QVBoxLayout>
+#include <QWhatsThis>
+
+#include "DolphinQt/Config/GameConfigHighlighter.h"
+
+GameConfigEdit::GameConfigEdit(QWidget* parent, const QString& path, bool read_only)
+    : m_path(path), m_read_only(read_only)
+{
+  CreateWidgets();
+
+  LoadFile();
+
+  new GameConfigHighlighter(m_edit->document());
+
+  AddDescription(QStringLiteral("Core"),
+                 tr("Section that contains most CPU and Hardware related settings."));
+
+  AddDescription(QStringLiteral("CPUThread"), tr("Controls whether or not Dual Core should be "
+                                                 "enabled. Can improve performance but can also "
+                                                 "cause issues. Defaults to <b>True</b>"));
+
+  AddDescription(QStringLiteral("FastDiscSpeed"),
+                 tr("Shortens loading times but may break some games. Can have negative effects on "
+                    "performance. Defaults to <b>False</b>"));
+
+  AddDescription(QStringLiteral("MMU"), tr("Controls whether or not the Memory Management Unit "
+                                           "should be emulated fully. Few games require it."));
+
+  AddDescription(
+      QStringLiteral("DSPHLE"),
+      tr("Controls whether to use high or low-level DSP emulation. Defaults to <b>True</b>"));
+
+  AddDescription(
+      QStringLiteral("JITFollowBranch"),
+      tr("Tries to translate branches ahead of time, improving performance in most cases. Defaults "
+         "to <b>True</b>"));
+
+  AddDescription(QStringLiteral("Gecko"), tr("Section that contains all Gecko cheat codes."));
+
+  AddDescription(QStringLiteral("ActionReplay"),
+                 tr("Section that contains all Action Replay cheat codes."));
+
+  AddDescription(QStringLiteral("Video_Settings"),
+                 tr("Section that contains all graphics related settings."));
+
+  m_completer = new QCompleter(m_edit);
+
+  auto* completion_model = new QStringListModel;
+  completion_model->setStringList(m_completions);
+
+  m_completer->setModel(completion_model);
+  m_completer->setModelSorting(QCompleter::UnsortedModel);
+  m_completer->setCompletionMode(QCompleter::PopupCompletion);
+  m_completer->setWidget(m_edit);
+
+  AddMenubarOptions();
+  ConnectWidgets();
+}
+
+void GameConfigEdit::CreateWidgets()
+{
+  m_menu = new QMenu;
+
+  m_edit = new QTextEdit;
+  m_edit->setReadOnly(m_read_only);
+  m_edit->setAcceptRichText(false);
+
+  auto* layout = new QVBoxLayout;
+
+  auto* menu_button = new QToolButton;
+
+  menu_button->setText(tr("Presets") + QStringLiteral(" "));
+  menu_button->setMenu(m_menu);
+
+  connect(menu_button, &QToolButton::pressed, [menu_button] { menu_button->showMenu(); });
+
+  layout->addWidget(menu_button);
+  layout->addWidget(m_edit);
+
+  setLayout(layout);
+}
+
+void GameConfigEdit::AddDescription(const QString& keyword, const QString& description)
+{
+  m_keyword_map[keyword] = description;
+  m_completions << keyword;
+}
+
+void GameConfigEdit::LoadFile()
+{
+  QFile file(m_path);
+  if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+    return;
+
+  m_edit->setPlainText(QString::fromStdString(file.readAll().toStdString()));
+}
+
+void GameConfigEdit::SaveFile()
+{
+  if (!isVisible() || m_read_only)
+    return;
+
+  QFile file(m_path);
+
+  if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text))
+    return;
+
+  const QByteArray contents = m_edit->toPlainText().toUtf8();
+
+  if (!file.write(contents))
+    QMessageBox::warning(this, tr("Warning"), tr("Failed to write config file!"));
+}
+
+void GameConfigEdit::ConnectWidgets()
+{
+  connect(m_edit, &QTextEdit::textChanged, this, &GameConfigEdit::SaveFile);
+  connect(m_edit, &QTextEdit::selectionChanged, this, &GameConfigEdit::OnSelectionChanged);
+  connect(m_completer, static_cast<void (QCompleter::*)(const QString&)>(&QCompleter::activated),
+          this, &GameConfigEdit::OnAutoComplete);
+}
+
+void GameConfigEdit::OnSelectionChanged()
+{
+  const QString& keyword = m_edit->textCursor().selectedText();
+
+  if (m_keyword_map.count(keyword))
+    QWhatsThis::showText(QCursor::pos(), m_keyword_map[keyword], this);
+}
+
+void GameConfigEdit::AddBoolOption(QMenu* menu, const QString& name, const QString& section,
+                                   const QString& key)
+{
+  auto* option = menu->addMenu(name);
+
+  option->addAction(tr("On"), this,
+                    [this, section, key] { SetOption(section, key, QStringLiteral("True")); });
+  option->addAction(tr("Off"), this,
+                    [this, section, key] { SetOption(section, key, QStringLiteral("False")); });
+}
+
+void GameConfigEdit::SetOption(const QString& section, const QString& key, const QString& value)
+{
+  auto section_cursor =
+      m_edit->document()->find(QRegExp(QStringLiteral("^\\[%1\\]").arg(section)), 0);
+
+  // Check if the section this belongs in can be found
+  if (section_cursor.isNull())
+  {
+    m_edit->append(QStringLiteral("[%1]\n\n%2 = %3\n").arg(section).arg(key).arg(value));
+  }
+  else
+  {
+    auto value_cursor =
+        m_edit->document()->find(QRegExp(QStringLiteral("^%1 = .*").arg(key)), section_cursor);
+
+    const QString new_line = QStringLiteral("%1 = %2").arg(key).arg(value);
+
+    // Check if the value that has to be set already exists
+    if (value_cursor.isNull())
+    {
+      section_cursor.clearSelection();
+      section_cursor.insertText(QStringLiteral("\n") + new_line);
+    }
+    else
+    {
+      value_cursor.insertText(new_line);
+    }
+  }
+}
+
+QString GameConfigEdit::GetTextUnderCursor()
+{
+  QTextCursor tc = m_edit->textCursor();
+  tc.select(QTextCursor::WordUnderCursor);
+  return tc.selectedText();
+}
+
+void GameConfigEdit::AddMenubarOptions()
+{
+  auto* editor = m_menu->addMenu(tr("Editor"));
+
+  editor->addAction(tr("Refresh"), this, &GameConfigEdit::LoadFile);
+  editor->addAction(tr("Open in External Editor"), this, &GameConfigEdit::OpenExternalEditor);
+
+  if (!m_read_only)
+  {
+    m_menu->addSeparator();
+    auto* core_menubar = m_menu->addMenu(tr("Core"));
+
+    AddBoolOption(core_menubar, tr("Dual Core"), QStringLiteral("Core"),
+                  QStringLiteral("CPUThread"));
+    AddBoolOption(core_menubar, tr("MMU"), QStringLiteral("Core"), QStringLiteral("MMU"));
+
+    auto* video_menubar = m_menu->addMenu(tr("Video"));
+
+    AddBoolOption(video_menubar, tr("Store EFB Copies to Texture Only"),
+                  QStringLiteral("Video_Settings"), QStringLiteral("EFBToTextureEnable"));
+
+    AddBoolOption(video_menubar, tr("Store XFB Copies to Texture Only"),
+                  QStringLiteral("Video_Settings"), QStringLiteral("XFBToTextureEnable"));
+
+    {
+      auto* texture_cache = video_menubar->addMenu(tr("Texture Cache"));
+      texture_cache->addAction(tr("Safe"), this, [this] {
+        SetOption(QStringLiteral("Video_Settings"), QStringLiteral("SafeTextureCacheColorSamples"),
+                  QStringLiteral("0"));
+      });
+      texture_cache->addAction(tr("Medium"), this, [this] {
+        SetOption(QStringLiteral("Video_Settings"), QStringLiteral("SafeTextureCacheColorSamples"),
+                  QStringLiteral("512"));
+      });
+      texture_cache->addAction(tr("Fast"), this, [this] {
+        SetOption(QStringLiteral("Video_Settings"), QStringLiteral("SafeTextureCacheColorSamples"),
+                  QStringLiteral("128"));
+      });
+    }
+  }
+}
+
+void GameConfigEdit::OnAutoComplete(const QString& completion)
+{
+  QTextCursor cursor = m_edit->textCursor();
+  int extra = completion.length() - m_completer->completionPrefix().length();
+  cursor.movePosition(QTextCursor::Left);
+  cursor.movePosition(QTextCursor::EndOfWord);
+  cursor.insertText(completion.right(extra));
+  m_edit->setTextCursor(cursor);
+}
+
+void GameConfigEdit::OpenExternalEditor()
+{
+  QFile file(m_path);
+
+  if (!file.exists())
+  {
+    if (m_read_only)
+      return;
+
+    file.open(QIODevice::WriteOnly);
+    file.close();
+  }
+
+  QDesktopServices::openUrl(QUrl::fromLocalFile(m_path));
+}
+
+void GameConfigEdit::keyPressEvent(QKeyEvent* e)
+{
+  if (m_completer->popup()->isVisible())
+  {
+    // The following keys are forwarded by the completer to the widget
+    switch (e->key())
+    {
+    case Qt::Key_Enter:
+    case Qt::Key_Return:
+    case Qt::Key_Escape:
+    case Qt::Key_Tab:
+    case Qt::Key_Backtab:
+      e->ignore();
+      return;  // let the completer do default behavior
+    default:
+      break;
+    }
+  }
+
+  QWidget::keyPressEvent(e);
+
+  const static QString end_of_word = QStringLiteral("~!@#$%^&*()_+{}|:\"<>?,./;'\\-=");
+
+  QString completion_prefix = GetTextUnderCursor();
+
+  if (e->text().isEmpty() || completion_prefix.length() < 2 ||
+      end_of_word.contains(e->text().right(1)))
+  {
+    m_completer->popup()->hide();
+    return;
+  }
+
+  if (completion_prefix != m_completer->completionPrefix())
+  {
+    m_completer->setCompletionPrefix(completion_prefix);
+    m_completer->popup()->setCurrentIndex(m_completer->completionModel()->index(0, 0));
+  }
+  QRect cr = m_edit->cursorRect();
+  cr.setWidth(m_completer->popup()->sizeHintForColumn(0) +
+              m_completer->popup()->verticalScrollBar()->sizeHint().width());
+  m_completer->complete(cr);  // popup it up!
+}
+
+void GameConfigEdit::focusInEvent(QFocusEvent* e)
+{
+  m_completer->setWidget(m_edit);
+  QWidget::focusInEvent(e);
+}
diff --git a/Source/Core/DolphinQt/Config/GameConfigEdit.h b/Source/Core/DolphinQt/Config/GameConfigEdit.h
new file mode 100644
index 0000000000..7eeca57b2d
--- /dev/null
+++ b/Source/Core/DolphinQt/Config/GameConfigEdit.h
@@ -0,0 +1,57 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QMap>
+#include <QString>
+#include <QStringList>
+#include <QWidget>
+
+class QCompleter;
+class QMenu;
+class QTextEdit;
+
+class GameConfigEdit : public QWidget
+{
+public:
+  explicit GameConfigEdit(QWidget* parent, const QString& path, bool read_only);
+
+protected:
+  void keyPressEvent(QKeyEvent* e) override;
+  void focusInEvent(QFocusEvent* e) override;
+
+private:
+  void CreateWidgets();
+  void ConnectWidgets();
+  void AddMenubarOptions();
+
+  void LoadFile();
+  void SaveFile();
+
+  void OnSelectionChanged();
+  void OnAutoComplete(const QString& completion);
+  void OpenExternalEditor();
+
+  void SetReadOnly(bool read_only);
+
+  QString GetTextUnderCursor();
+
+  void AddBoolOption(QMenu* menu, const QString& name, const QString& section, const QString& key);
+
+  void SetOption(const QString& section, const QString& key, const QString& value);
+
+  void AddDescription(const QString& keyword, const QString& description);
+
+  QCompleter* m_completer;
+  QStringList m_completions;
+  QMenu* m_menu;
+  QTextEdit* m_edit;
+
+  const QString m_path;
+
+  bool m_read_only;
+
+  QMap<QString, QString> m_keyword_map;
+};
diff --git a/Source/Core/DolphinQt/Config/GameConfigHighlighter.cpp b/Source/Core/DolphinQt/Config/GameConfigHighlighter.cpp
new file mode 100644
index 0000000000..d9d2bb55bd
--- /dev/null
+++ b/Source/Core/DolphinQt/Config/GameConfigHighlighter.cpp
@@ -0,0 +1,63 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "DolphinQt/Config/GameConfigHighlighter.h"
+
+struct HighlightingRule
+{
+  QRegularExpression pattern;
+  QTextCharFormat format;
+};
+
+GameConfigHighlighter::~GameConfigHighlighter() = default;
+
+GameConfigHighlighter::GameConfigHighlighter(QTextDocument* parent) : QSyntaxHighlighter(parent)
+{
+  QTextCharFormat equal_format;
+  equal_format.setForeground(Qt::red);
+
+  QTextCharFormat section_format;
+  section_format.setFontWeight(QFont::Bold);
+
+  QTextCharFormat comment_format;
+  comment_format.setForeground(Qt::darkGreen);
+  comment_format.setFontItalic(true);
+
+  QTextCharFormat const_format;
+  const_format.setFontWeight(QFont::Bold);
+  const_format.setForeground(Qt::blue);
+
+  QTextCharFormat num_format;
+  num_format.setForeground(Qt::darkBlue);
+
+  m_rules.emplace_back(HighlightingRule{QRegularExpression(QStringLiteral("=")), equal_format});
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("^\\[.*?\\]")), section_format});
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("\\bTrue\\b")), const_format});
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("\\bFalse\\b")), const_format});
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("\\b[0-9a-fA-F]+\\b")), num_format});
+
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("^#.*")), comment_format});
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("^\\$.*")), comment_format});
+  m_rules.emplace_back(
+      HighlightingRule{QRegularExpression(QStringLiteral("^\\*.*")), comment_format});
+}
+
+void GameConfigHighlighter::highlightBlock(const QString& text)
+{
+  for (const auto& rule : m_rules)
+  {
+    auto it = rule.pattern.globalMatch(text);
+    while (it.hasNext())
+    {
+      auto match = it.next();
+      setFormat(match.capturedStart(), match.capturedLength(), rule.format);
+    }
+  }
+}
diff --git a/Source/Core/DolphinQt/Config/GameConfigHighlighter.h b/Source/Core/DolphinQt/Config/GameConfigHighlighter.h
new file mode 100644
index 0000000000..4b20291e93
--- /dev/null
+++ b/Source/Core/DolphinQt/Config/GameConfigHighlighter.h
@@ -0,0 +1,28 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <vector>
+
+#include <QRegularExpression>
+#include <QSyntaxHighlighter>
+#include <QTextCharFormat>
+
+struct HighlightingRule;
+
+class GameConfigHighlighter : public QSyntaxHighlighter
+{
+  Q_OBJECT
+
+public:
+  explicit GameConfigHighlighter(QTextDocument* parent = nullptr);
+  ~GameConfigHighlighter();
+
+protected:
+  void highlightBlock(const QString& text) override;
+
+private:
+  std::vector<HighlightingRule> m_rules;
+};
diff --git a/Source/Core/DolphinQt/Config/GameConfigWidget.cpp b/Source/Core/DolphinQt/Config/GameConfigWidget.cpp
index c626515ce0..c11ca30ebd 100644
--- a/Source/Core/DolphinQt/Config/GameConfigWidget.cpp
+++ b/Source/Core/DolphinQt/Config/GameConfigWidget.cpp
@@ -6,16 +6,12 @@
 
 #include <QCheckBox>
 #include <QComboBox>
-#include <QDesktopServices>
-#include <QFile>
-#include <QGridLayout>
 #include <QGroupBox>
-#include <QHBoxLayout>
 #include <QLabel>
-#include <QLineEdit>
 #include <QPushButton>
+#include <QSlider>
 #include <QSpinBox>
-#include <QUrl>
+#include <QTabWidget>
 #include <QVBoxLayout>
 
 #include "Common/CommonPaths.h"
@@ -24,6 +20,7 @@
 #include "Core/ConfigLoaders/GameConfigLoader.h"
 #include "Core/ConfigManager.h"
 
+#include "DolphinQt/Config/GameConfigEdit.h"
 #include "DolphinQt/Config/Graphics/GraphicsSlider.h"
 
 #include "UICommon/GameFile.h"
@@ -38,22 +35,51 @@ constexpr const char* DETERMINISM_AUTO_STRING = "auto";
 constexpr const char* DETERMINISM_NONE_STRING = "none";
 constexpr const char* DETERMINISM_FAKE_COMPLETION_STRING = "fake-completion";
 
+static void PopulateTab(QTabWidget* tab, const std::string& path, std::string game_id,
+                        bool read_only)
+{
+  while (!game_id.empty())
+  {
+    const std::string ini_path = path + game_id + ".ini";
+    if (File::Exists(ini_path))
+    {
+      auto* edit =
+          new GameConfigEdit(nullptr, QString::fromStdString(path + game_id + ".ini"), read_only);
+      tab->addTab(edit, QString::fromStdString(game_id));
+    }
+
+    game_id = game_id.substr(0, game_id.size() - 1);
+  }
+}
+
 GameConfigWidget::GameConfigWidget(const UICommon::GameFile& game) : m_game(game)
 {
   m_game_id = m_game.GetGameID();
+
   m_gameini_local_path =
       QString::fromStdString(File::GetUserPath(D_GAMESETTINGS_IDX) + m_game_id + ".ini");
 
   CreateWidgets();
   LoadSettings();
   ConnectWidgets();
+
+  PopulateTab(m_default_tab, File::GetSysDirectory() + "GameSettings/", m_game_id, true);
+  PopulateTab(m_local_tab, File::GetUserPath(D_GAMESETTINGS_IDX), m_game_id, false);
+
+  // Always give the user the opportunity to create a new INI
+  if (m_local_tab->count() == 0)
+  {
+    auto* edit = new GameConfigEdit(
+        nullptr, QString::fromStdString(File::GetUserPath(D_GAMESETTINGS_IDX) + m_game_id + ".ini"),
+        false);
+    m_local_tab->addTab(edit, QString::fromStdString(m_game_id));
+  }
 }
 
 void GameConfigWidget::CreateWidgets()
 {
+  // General
   m_refresh_config = new QPushButton(tr("Refresh"));
-  m_edit_user_config = new QPushButton(tr("Edit User Config"));
-  m_view_default_config = new QPushButton(tr("View Default Config"));
 
   // Core
   auto* core_box = new QGroupBox(tr("Core"));
@@ -128,23 +154,51 @@ void GameConfigWidget::CreateWidgets()
   settings_layout->addWidget(core_box);
   settings_layout->addWidget(stereoscopy_box);
 
-  auto* layout = new QGridLayout;
-
-  layout->addWidget(settings_box, 0, 0, 1, -1);
-
-  auto* button_layout = new QHBoxLayout;
-  button_layout->setMargin(0);
+  auto* general_layout = new QGridLayout;
 
-  layout->addLayout(button_layout, 1, 0, 1, -1);
+  general_layout->addWidget(settings_box, 0, 0, 1, -1);
 
-  button_layout->addWidget(m_refresh_config);
-  button_layout->addWidget(m_edit_user_config);
-  button_layout->addWidget(m_view_default_config);
+  general_layout->addWidget(m_refresh_config, 1, 0, 1, -1);
 
   for (QCheckBox* item : {m_enable_dual_core, m_enable_mmu, m_enable_fprf, m_sync_gpu,
                           m_enable_fast_disc, m_use_dsp_hle, m_use_monoscopic_shadows})
     item->setTristate(true);
 
+  auto* general_widget = new QWidget;
+  general_widget->setLayout(general_layout);
+
+  // Advanced
+  auto* advanced_layout = new QVBoxLayout;
+
+  auto* default_group = new QGroupBox(tr("Default Config (Read Only)"));
+  auto* default_layout = new QVBoxLayout;
+  m_default_tab = new QTabWidget;
+
+  default_group->setLayout(default_layout);
+  default_layout->addWidget(m_default_tab);
+
+  auto* local_group = new QGroupBox(tr("User Config"));
+  auto* local_layout = new QVBoxLayout;
+  m_local_tab = new QTabWidget;
+
+  local_group->setLayout(local_layout);
+  local_layout->addWidget(m_local_tab);
+
+  advanced_layout->addWidget(default_group);
+  advanced_layout->addWidget(local_group);
+
+  auto* advanced_widget = new QWidget;
+
+  advanced_widget->setLayout(advanced_layout);
+
+  auto* layout = new QVBoxLayout;
+  auto* tab_widget = new QTabWidget;
+
+  tab_widget->addTab(general_widget, tr("General"));
+  tab_widget->addTab(advanced_widget, tr("Editor"));
+
+  layout->addWidget(tab_widget);
+
   setLayout(layout);
 }
 
@@ -152,8 +206,6 @@ void GameConfigWidget::ConnectWidgets()
 {
   // Buttons
   connect(m_refresh_config, &QPushButton::pressed, this, &GameConfigWidget::LoadSettings);
-  connect(m_edit_user_config, &QPushButton::pressed, this, &GameConfigWidget::EditUserConfig);
-  connect(m_view_default_config, &QPushButton::pressed, this, &GameConfigWidget::ViewDefaultConfig);
 
   for (QCheckBox* box : {m_enable_dual_core, m_enable_mmu, m_enable_fprf, m_sync_gpu,
                          m_enable_fast_disc, m_use_dsp_hle, m_use_monoscopic_shadows})
@@ -347,29 +399,3 @@ void GameConfigWidget::SaveSettings()
   if (success && File::GetSize(m_gameini_local_path.toStdString()) == 0)
     File::Delete(m_gameini_local_path.toStdString());
 }
-
-void GameConfigWidget::EditUserConfig()
-{
-  QFile file(m_gameini_local_path);
-
-  if (!file.exists())
-  {
-    file.open(QIODevice::WriteOnly);
-    file.close();
-  }
-
-  QDesktopServices::openUrl(QUrl::fromLocalFile(m_gameini_local_path));
-}
-
-void GameConfigWidget::ViewDefaultConfig()
-{
-  for (const std::string& filename :
-       ConfigLoaders::GetGameIniFilenames(m_game_id, m_game.GetRevision()))
-  {
-    QString path =
-        QString::fromStdString(File::GetSysDirectory() + GAMESETTINGS_DIR DIR_SEP + filename);
-
-    if (QFile(path).exists())
-      QDesktopServices::openUrl(QUrl::fromLocalFile(path));
-  }
-}
diff --git a/Source/Core/DolphinQt/Config/GameConfigWidget.h b/Source/Core/DolphinQt/Config/GameConfigWidget.h
index bb1c58d803..a8fba742cc 100644
--- a/Source/Core/DolphinQt/Config/GameConfigWidget.h
+++ b/Source/Core/DolphinQt/Config/GameConfigWidget.h
@@ -18,12 +18,10 @@ class GameFile;
 
 class QCheckBox;
 class QComboBox;
-class QGroupBox;
-class QLineEdit;
 class QPushButton;
 class QSlider;
 class QSpinBox;
-class QVBoxLayout;
+class QTabWidget;
 
 class GameConfigWidget : public QWidget
 {
@@ -34,38 +32,40 @@ public:
 private:
   void CreateWidgets();
   void ConnectWidgets();
+
   void LoadSettings();
   void SaveSettings();
 
   void EditUserConfig();
-  void ViewDefaultConfig();
 
-  void LoadCheckBox(QCheckBox* checkbox, const std::string& section, const std::string& key);
   void SaveCheckBox(QCheckBox* checkbox, const std::string& section, const std::string& key);
+  void LoadCheckBox(QCheckBox* checkbox, const std::string& section, const std::string& key);
 
-  QPushButton* m_refresh_config;
-  QPushButton* m_edit_user_config;
-  QPushButton* m_view_default_config;
+  QString m_gameini_sys_path;
+  QString m_gameini_local_path;
+
+  QTabWidget* m_default_tab;
+  QTabWidget* m_local_tab;
 
-  // Core
   QCheckBox* m_enable_dual_core;
   QCheckBox* m_enable_mmu;
   QCheckBox* m_enable_fprf;
   QCheckBox* m_sync_gpu;
   QCheckBox* m_enable_fast_disc;
   QCheckBox* m_use_dsp_hle;
+  QCheckBox* m_use_monoscopic_shadows;
+
+  QPushButton* m_refresh_config;
+
   QComboBox* m_deterministic_dual_core;
 
-  // Stereoscopy
   QSlider* m_depth_slider;
+
   QSpinBox* m_convergence_spin;
-  QCheckBox* m_use_monoscopic_shadows;
 
-  QString m_gameini_local_path;
+  const UICommon::GameFile& m_game;
+  std::string m_game_id;
 
   IniFile m_gameini_local;
   IniFile m_gameini_default;
-
-  const UICommon::GameFile& m_game;
-  std::string m_game_id;
 };
diff --git a/Source/Core/DolphinQt/DolphinQt.vcxproj b/Source/Core/DolphinQt/DolphinQt.vcxproj
index 694f7b9f13..0dde566e5a 100644
--- a/Source/Core/DolphinQt/DolphinQt.vcxproj
+++ b/Source/Core/DolphinQt/DolphinQt.vcxproj
@@ -63,6 +63,8 @@
     <QtMoc Include="Config\CheatWarningWidget.h" />
     <QtMoc Include="Config\ControllersWindow.h" />
     <QtMoc Include="Config\FilesystemWidget.h" />
+    <QtMoc Include="Config\GameConfigEdit.h" />
+    <QtMoc Include="Config\GameConfigHighlighter.h" />
     <QtMoc Include="Config\GameConfigWidget.h" />
     <QtMoc Include="Config\GeckoCodeWidget.h" />
     <QtMoc Include="Config\Mapping\GCKeyboardEmu.h" />
@@ -194,6 +196,8 @@
     <ClCompile Include="$(QtMocOutPrefix)GCPadEmu.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GCPadWiiUConfigDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GCTASInputWindow.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GameConfigEdit.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)GameConfigHighlighter.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameConfigWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameCubePane.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)GameList.cpp" />
@@ -275,6 +279,8 @@
     <ClCompile Include="Config\CheatWarningWidget.cpp" />
     <ClCompile Include="Config\ControllersWindow.cpp" />
     <ClCompile Include="Config\FilesystemWidget.cpp" />
+    <ClCompile Include="Config\GameConfigEdit.cpp" />
+    <ClCompile Include="Config\GameConfigHighlighter.cpp" />
     <ClCompile Include="Config\GameConfigWidget.cpp" />
     <ClCompile Include="Config\GeckoCodeWidget.cpp" />
     <ClCompile Include="Config\Graphics\AdvancedWidget.cpp" />