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+#ifndef _KKEYSERVER_X11_H
+#define _KKEYSERVER_X11_H
+
+#include "kshortcut.h"
+#include "kkeynative.h"
+
+/**
+ * A collection of functions for the conversion of key presses and
+ * their modifiers from the window system (X11) specific format
+ * to the generic format and vice-versa.
+ */
+namespace KKeyServer
+{
+ /**
+ * Supplement enum KKey::ModFlag
+ * @since 3.1
+ */
+ enum ExtraModFlag { MODE_SWITCH = 0x2000 };
+
+ /**
+ * Represents a key symbol.
+ * @see KKey
+ * @see KKeyServer
+ */
+ struct Sym
+ {
+ public:
+ /// the actual value of the symbol
+ uint m_sym;
+
+ /// Creates a null symbol.
+ Sym()
+ { m_sym = 0; }
+ /**
+ * Creates asymbol with the given value.
+ * @param sym the value
+ */
+ Sym( uint sym )
+ { m_sym = sym; }
+ /**
+ * Creates a symbol from the given string description.
+ * @param s the description of the symbol
+ * @see toString()
+ */
+ Sym( const QString& s )
+ { init( s ); }
+
+ /**
+ * Initializes the symbol with the given Qt key code.
+ * @param keyQt the qt key code
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ */
+ bool initQt( int keyQt );
+
+ /**
+ * Initializes the key with the given string description.
+ * @param s the string description
+ * @return true if successful, false otherwise
+ * @see toString()
+ */
+ bool init( const QString &s );
+
+ /**
+ * Returns the qt key code of the symbol.
+ * @return the qt key code
+ */
+ int qt() const;
+
+ /**
+ * @internal
+ */
+ QString toStringInternal() const;
+
+ /**
+ * Returns the string representation of the symbol.
+ * @return the string representation of the symbol
+ */
+ QString toString() const;
+
+ /**
+ * Returns the mods that are required for this symbol as
+ * ORed KKey::ModFlag's. For example, Break requires a
+ * Ctrl to be valid.
+ * @return the required KKey::ModFlag's
+ * @see KKey::ModFlag
+ */
+ uint getModsRequired() const;
+
+ /**
+ * TODO: please find out what this method does and document it
+ */
+ uint getSymVariation() const;
+
+ /**
+ * Casts the symbol to its integer representation.
+ */
+ operator uint() const { return m_sym; }
+
+ /**
+ * Overloaded operator to convert ints to Sym.
+ */
+ Sym& operator =( uint sym ) { m_sym = sym; return *this; }
+
+ private:
+ QString toString( bool bUserSpace ) const;
+
+ static void capitalizeKeyname( QString& );
+ };
+
+ /**
+ * Represents a key press.
+ * @see KKey
+ */
+ struct Key
+ {
+ /// Code for native Keys in Qt
+ enum { CODE_FOR_QT = 256 };
+
+ /// The code of the key
+ uint m_code;
+
+ /// The modifiers of the key
+ uint m_mod;
+
+ /// The symbol of the key
+ uint m_sym;
+
+ /**
+ * Initializes the key with a KKey.
+ * @param key the key to get the data from
+ * @param bQt true to take the Qt keycode, false
+ * for the native key code
+ * @see Qt::Key
+ * @see KKeyNative
+ */
+ bool init( const KKey& key, bool bQt );
+
+ /**
+ * Checks whether the key code is a native code.
+ * @return true if native code of the window system,
+ * false if it is a Qt keycode
+ * @see Qt::Key
+ * @see KKeyNative
+ */
+ bool isNative() const { return m_code != CODE_FOR_QT; }
+
+ /**
+ * Returns the code of the key.
+ * @return the code of the key
+ */
+ uint code() const { return m_code; }
+
+ /**
+ * Returns the modifiers of the key.
+ * @return the modifiers of the key
+ */
+ uint mod() const { return m_mod; }
+
+ /**
+ * Returns the symbol of the key.
+ * @return the symbol of the key
+ */
+ uint sym() const { return m_sym; }
+
+ /**
+ * Returns the qt key code.
+ * @return the qt key code
+ */
+ int keyCodeQt() const { return (int) m_sym; }
+
+ /**
+ * Sets the qt key code.
+ * @param keyQt the qt key code
+ */
+ void setKeycodeQt( int keyQt )
+ { m_code = CODE_FOR_QT; m_sym = keyQt; }
+
+ /**
+ * Initializes this key with a KKeyNative.
+ * @return this key
+ */
+ Key& operator =( const KKeyNative& key );
+
+ /**
+ * Compares this key with the given Key object. Returns a
+ * negative number if the given Key is larger, 0 if they
+ * are equal and a positive number this Key is larger. The
+ * returned value is the difference between the symbol, modifier
+ * or code, whatever is non-zero first.
+ *
+ * @param key the key to compare with this key
+ * @return a negative number if the given Key is larger, 0 if
+ * they are equal and a positive number this Key is larger
+ */
+ int compare( const Key& key ) const;
+
+ /**
+ * Compares the symbol, modifiers and code of both keys.
+ * @see compare()
+ */
+ bool operator ==( const Key& b ) const
+ { return compare( b ) == 0; }
+
+ /**
+ * Compares the symbol, modifiers and code of both keys.
+ * @see compare()
+ */
+ bool operator <( const Key& b ) const
+ { return compare( b ) < 0; }
+
+ /**
+ * Converts this Key to a KKey.
+ * @return the KKey
+ */
+ KKey key() const;
+ };
+
+ /**
+ * TODO: please document this class
+ */
+ struct Variations
+ {
+ enum { MAX_VARIATIONS = 4 };
+
+ Key m_rgkey[MAX_VARIATIONS];
+ uint m_nVariations;
+
+ Variations() { m_nVariations = 0; }
+
+ void init( const KKey&, bool bQt );
+
+ uint count() const { return m_nVariations; }
+ const Key& key( uint i ) const { return m_rgkey[i]; }
+ };
+
+ /// TODO: please document
+ bool initializeMods();
+
+ /**
+ * Returns the equivalent X modifier mask of the given modifier flag.
+ * @param modFlag the generic flags to check
+ * @return the window system specific flags
+ */
+ uint modX( KKey::ModFlag modFlag );
+
+ /**
+ * Returns true if the current keyboard layout supports the Win key.
+ * Specifically, whether the Super or Meta keys are assigned to an X modifier.
+ * @return true if the keyboard has a Win key
+ * @see modXWin()
+ */
+ bool keyboardHasWinKey();
+
+ /**
+ * Returns the X11 Shift modifier mask/flag.
+ * @return the X11 Shift modifier mask/flag.
+ * @see accelModMaskX()
+ */
+ uint modXShift();
+
+ /**
+ * Returns the X11 Lock modifier mask/flag.
+ * @return the X11 Lock modifier mask/flag.
+ * @see accelModMaskX()
+ */
+ uint modXLock();
+
+ /**
+ * Returns the X11 Ctrl modifier mask/flag.
+ * @return the X11 Ctrl modifier mask/flag.
+ * @see accelModMaskX()
+ */
+ uint modXCtrl();
+
+ /**
+ * Returns the X11 Alt (Mod1) modifier mask/flag.
+ * @return the X11 Alt (Mod1) modifier mask/flag.
+ * @see accelModMaskX()
+ */
+ uint modXAlt();
+
+ /**
+ * Returns the X11 NumLock modifier mask/flag.
+ * @return the X11 NumLock modifier mask/flag.
+ * @see accelModMaskX()
+ */
+ uint modXNumLock();
+
+ /**
+ * Returns the X11 Win (Mod3) modifier mask/flag.
+ * @return the X11 Win (Mod3) modifier mask/flag.
+ * @see keyboardHasWinKey()
+ * @see accelModMaskX()
+ */
+ uint modXWin();
+
+ /**
+ * Returns the X11 ScrollLock modifier mask/flag.
+ * @return the X11 ScrollLock modifier mask/flag.
+ * @see accelModMaskX()
+ */
+ uint modXScrollLock();
+
+ /**
+ * Returns bitwise OR'ed mask containing Shift, Ctrl, Alt, and
+ * Win (if available).
+ * @see modXShift()
+ * @see modXLock()
+ * @see modXCtrl()
+ * @see modXAlt()
+ * @see modXNumLock()
+ * @see modXWin()
+ * @see modXScrollLock()
+ */
+ uint accelModMaskX();
+
+ /**
+ * Extracts the symbol from the given Qt key and
+ * converts it to a symbol.
+ * @param keyQt the qt key code
+ * @param sym if successful, the symbol will be written here
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ * @see Sym
+ */
+ bool keyQtToSym( int keyQt, uint& sym );
+
+ /**
+ * Extracts the modifiers from the given Qt key and
+ * converts them in a mask of ORed KKey::ModFlag modifiers.
+ * @param keyQt the qt key code
+ * @param mod if successful, the modifiers will be written here
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ */
+ bool keyQtToMod( int keyQt, uint& mod );
+
+ /**
+ * Converts the given symbol to a Qt key code.
+ * @param sym the symbol
+ * @param keyQt if successful, the qt key code will be written here
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ * @see Sym
+ */
+ bool symToKeyQt( uint sym, int& keyQt );
+
+ /**
+ * Converts the mask of ORed KKey::ModFlag modifiers to
+ * a mask of ORed Qt key code modifiers.
+ * @param mod the mask of KKey::ModFlag modifiers
+ * @param modQt the mask of Qt key code modifiers will be written here,
+ * if successful
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ * @see KKey
+ */
+ bool modToModQt( uint mod, int& modQt );
+
+ /**
+ * Converts the mask of ORed KKey::ModFlag modifiers to
+ * a mask of ORed X11 modifiers.
+ * @param mod the mask of KKey::ModFlag modifiers
+ * @param modX the mask of X11 modifiers will be written here,
+ * if successful
+ * @return true if successful, false otherwise
+ * @see KKey
+ */
+ bool modToModX( uint mod, uint& modX );
+
+ /**
+ * Converts the mask of ORed X11 modifiers to
+ * a mask of ORed Qt key code modifiers.
+ * @param modX the mask of X11 modifiers
+ * @param modQt the mask of Qt key code modifiers will be written here
+ * if successful
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ */
+ bool modXToModQt( uint modX, int& modQt );
+
+ /**
+ * Converts the mask of ORed X11 modifiers to
+ * a mask of ORed KKey::ModFlag modifiers.
+ * @param modX the mask of X11 modifiers
+ * @param mod the mask of KKey::ModFlag modifiers will be written here,
+ * if successful
+ * @return true if successful, false otherwise
+ * @see KKey
+ */
+ bool modXToMod( uint modX, uint& mod );
+
+ /**
+ * Converts a X11 key code and a mask of ORed X11 modifiers
+ * into a X11 symbol.
+ * converts it to a symbol.
+ * @param codeX the X11 key code
+ * @param modX the mask of ORed X11 modifiers
+ * @param symX if successful, the X11 symbol will be written here
+ * @return true if successful, false otherwise
+ * @see Qt::Key
+ * @see Sym
+ */
+ bool codeXToSym( uchar codeX, uint modX, uint& symX );
+
+ /**
+ * @internal
+ */
+ QString modToStringInternal( uint mod );
+
+ /**
+ * Converts the mask of ORed KKey::ModFlag modifiers to a
+ * user-readable string.
+ * @param mod the mask of ORed KKey::ModFlag modifiers
+ * @return the user-readable string
+ */
+ QString modToStringUser( uint mod );
+
+ /**
+ * @internal
+ * Unimplemented?
+ */
+ bool stringToSymMod( const QString&, uint& sym, uint& mod );
+
+ /**
+ * @internal
+ * Unimplemented?
+ */
+ void keyQtToKeyX( uint keyCombQt, unsigned char *pKeyCodeX, uint *pKeySymX, uint *pKeyModX );
+}
+
+#endif // !_KKEYSERVER_X11_H