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  ** Copyright (C) 2016 The Qt Company Ltd.
  ** Contact: https://www.qt.io/licensing/
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  ** This file is part of the QtGui module of the Qt Toolkit.
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  ** accordance with the commercial license agreement provided with the
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  ****************************************************************************/
  
  #ifndef QPLATFORMTHEME_H
  #define QPLATFORMTHEME_H
  
  //
  //  W A R N I N G
  //  -------------
  //
  // This file is part of the QPA API and is not meant to be used
  // in applications. Usage of this API may make your code
  // source and binary incompatible with future versions of Qt.
  //
  
  #include <QtGui/qtguiglobal.h>
  #include <QtCore/QScopedPointer>
  #include <QtGui/QKeySequence>
  
  QT_BEGIN_NAMESPACE
  
  class QIcon;
  class QIconEngine;
  class QMenu;
  class QMenuBar;
  class QPlatformMenuItem;
  class QPlatformMenu;
  class QPlatformMenuBar;
  class QPlatformDialogHelper;
  class QPlatformSystemTrayIcon;
  class QPlatformThemePrivate;
  class QVariant;
  class QPalette;
  class QFont;
  class QPixmap;
  class QSizeF;
  class QFileInfo;
  
  class Q_GUI_EXPORT QPlatformTheme
  {
      Q_DECLARE_PRIVATE(QPlatformTheme)
  public:
      Q_DISABLE_COPY_MOVE(QPlatformTheme)
  
      enum ThemeHint {
          CursorFlashTime,
          KeyboardInputInterval,
          MouseDoubleClickInterval,
          StartDragDistance,
          StartDragTime,
          KeyboardAutoRepeatRate,
          PasswordMaskDelay,
          StartDragVelocity,
          TextCursorWidth,
          DropShadow,
          MaximumScrollBarDragDistance,
          ToolButtonStyle,
          ToolBarIconSize,
          ItemViewActivateItemOnSingleClick,
          SystemIconThemeName,
          SystemIconFallbackThemeName,
          IconThemeSearchPaths,
          StyleNames,
          WindowAutoPlacement,
          DialogButtonBoxLayout,
          DialogButtonBoxButtonsHaveIcons,
          UseFullScreenForPopupMenu,
          KeyboardScheme,
          UiEffects,
          SpellCheckUnderlineStyle,
  #if QT_VERSION >= QT_VERSION_CHECK(6,0,0)
          TabFocusBehavior,
  #else
          TabAllWidgets,
          TabFocusBehavior = TabAllWidgets,
  #endif
          IconPixmapSizes,
          PasswordMaskCharacter,
          DialogSnapToDefaultButton,
          ContextMenuOnMouseRelease,
          MousePressAndHoldInterval,
          MouseDoubleClickDistance,
          WheelScrollLines,
          TouchDoubleTapDistance,
          ShowShortcutsInContextMenus,
          IconFallbackSearchPaths,
          MouseQuickSelectionThreshold
      };
  
      enum DialogType {
          FileDialog,
          ColorDialog,
          FontDialog,
          MessageDialog
      };
  
      enum Palette {
          SystemPalette,
          ToolTipPalette,
          ToolButtonPalette,
          ButtonPalette,
          CheckBoxPalette,
          RadioButtonPalette,
          HeaderPalette,
          ComboBoxPalette,
          ItemViewPalette,
          MessageBoxLabelPelette,
          MessageBoxLabelPalette = MessageBoxLabelPelette,
          TabBarPalette,
          LabelPalette,
          GroupBoxPalette,
          MenuPalette,
          MenuBarPalette,
          TextEditPalette,
          TextLineEditPalette,
          NPalettes
      };
  
      enum Font {
          SystemFont,
          MenuFont,
          MenuBarFont,
          MenuItemFont,
          MessageBoxFont,
          LabelFont,
          TipLabelFont,
          StatusBarFont,
          TitleBarFont,
          MdiSubWindowTitleFont,
          DockWidgetTitleFont,
          PushButtonFont,
          CheckBoxFont,
          RadioButtonFont,
          ToolButtonFont,
          ItemViewFont,
          ListViewFont,
          HeaderViewFont,
          ListBoxFont,
          ComboMenuItemFont,
          ComboLineEditFont,
          SmallFont,
          MiniFont,
          FixedFont,
          GroupBoxTitleFont,
          TabButtonFont,
          EditorFont,
          NFonts
      };
  
      enum StandardPixmap {  // Keep in sync with QStyle::StandardPixmap
          TitleBarMenuButton,
          TitleBarMinButton,
          TitleBarMaxButton,
          TitleBarCloseButton,
          TitleBarNormalButton,
          TitleBarShadeButton,
          TitleBarUnshadeButton,
          TitleBarContextHelpButton,
          DockWidgetCloseButton,
          MessageBoxInformation,
          MessageBoxWarning,
          MessageBoxCritical,
          MessageBoxQuestion,
          DesktopIcon,
          TrashIcon,
          ComputerIcon,
          DriveFDIcon,
          DriveHDIcon,
          DriveCDIcon,
          DriveDVDIcon,
          DriveNetIcon,
          DirOpenIcon,
          DirClosedIcon,
          DirLinkIcon,
          DirLinkOpenIcon,
          FileIcon,
          FileLinkIcon,
          ToolBarHorizontalExtensionButton,
          ToolBarVerticalExtensionButton,
          FileDialogStart,
          FileDialogEnd,
          FileDialogToParent,
          FileDialogNewFolder,
          FileDialogDetailedView,
          FileDialogInfoView,
          FileDialogContentsView,
          FileDialogListView,
          FileDialogBack,
          DirIcon,
          DialogOkButton,
          DialogCancelButton,
          DialogHelpButton,
          DialogOpenButton,
          DialogSaveButton,
          DialogCloseButton,
          DialogApplyButton,
          DialogResetButton,
          DialogDiscardButton,
          DialogYesButton,
          DialogNoButton,
          ArrowUp,
          ArrowDown,
          ArrowLeft,
          ArrowRight,
          ArrowBack,
          ArrowForward,
          DirHomeIcon,
          CommandLink,
          VistaShield,
          BrowserReload,
          BrowserStop,
          MediaPlay,
          MediaStop,
          MediaPause,
          MediaSkipForward,
          MediaSkipBackward,
          MediaSeekForward,
          MediaSeekBackward,
          MediaVolume,
          MediaVolumeMuted,
          LineEditClearButton,
          // do not add any values below/greater than this
          CustomBase = 0xf0000000
      };
  
      enum KeyboardSchemes
      {
          WindowsKeyboardScheme,
          MacKeyboardScheme,
          X11KeyboardScheme,
          KdeKeyboardScheme,
          GnomeKeyboardScheme,
          CdeKeyboardScheme
      };
  
      enum UiEffect
      {
          GeneralUiEffect = 0x1,
          AnimateMenuUiEffect = 0x2,
          FadeMenuUiEffect = 0x4,
          AnimateComboUiEffect = 0x8,
          AnimateTooltipUiEffect = 0x10,
          FadeTooltipUiEffect = 0x20,
          AnimateToolBoxUiEffect = 0x40,
          HoverEffect = 0x80
      };
  
      enum IconOption {
          DontUseCustomDirectoryIcons = 0x01
      };
      Q_DECLARE_FLAGS(IconOptions, IconOption)
  
      explicit QPlatformTheme();
      virtual ~QPlatformTheme();
  
      virtual QPlatformMenuItem* createPlatformMenuItem() const;
      virtual QPlatformMenu* createPlatformMenu() const;
      virtual QPlatformMenuBar* createPlatformMenuBar() const;
      virtual void showPlatformMenuBar() {}
  
      virtual bool usePlatformNativeDialog(DialogType type) const;
      virtual QPlatformDialogHelper *createPlatformDialogHelper(DialogType type) const;
  
  #ifndef QT_NO_SYSTEMTRAYICON
      virtual QPlatformSystemTrayIcon *createPlatformSystemTrayIcon() const;
  #endif
  
      virtual const QPalette *palette(Palette type = SystemPalette) const;
  
      virtual const QFont *font(Font type = SystemFont) const;
  
      virtual QVariant themeHint(ThemeHint hint) const;
  
      virtual QPixmap standardPixmap(StandardPixmap sp, const QSizeF &size) const;
      virtual QIcon fileIcon(const QFileInfo &fileInfo,
                             QPlatformTheme::IconOptions iconOptions = nullptr) const;
      virtual QIconEngine *createIconEngine(const QString &iconName) const;
  
  #ifndef QT_NO_SHORTCUT
      virtual QList<QKeySequence> keyBindings(QKeySequence::StandardKey key) const;
  #endif
  
      virtual QString standardButtonText(int button) const;
      virtual QKeySequence standardButtonShortcut(int button) const;
  
      static QVariant defaultThemeHint(ThemeHint hint);
      static QString defaultStandardButtonText(int button);
      static QString removeMnemonics(const QString &original);
  
  protected:
      explicit QPlatformTheme(QPlatformThemePrivate *priv);
      QScopedPointer<QPlatformThemePrivate> d_ptr;
  };
  
  QT_END_NAMESPACE
  
  #endif // QPLATFORMTHEME_H
  