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kwin/utils.h

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/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 1999, 2000 Matthias Ettrich <ettrich@kde.org>
Copyright (C) 2003 Lubos Lunak <l.lunak@kde.org>
You can Freely distribute this program under the GNU General Public
License. See the file "COPYING" for the exact licensing terms.
******************************************************************/
#ifndef KWIN_UTILS_H
#define KWIN_UTILS_H
#include <config.h>
#include <config-X11.h>
#include <config-kwin.h>
#include <X11/Xlib.h>
#ifdef HAVE_XRANDR
#include <X11/extensions/Xrandr.h>
#endif
#ifdef HAVE_XCOMPOSITE
#include <X11/extensions/Xcomposite.h>
#if XCOMPOSITE_MAJOR > 0 || XCOMPOSITE_MINOR >= 3
#define HAVE_XCOMPOSITE_OVERLAY
#endif
#endif
#ifdef HAVE_XDAMAGE
#include <X11/extensions/Xdamage.h>
#endif
#ifdef HAVE_XFIXES
#include <X11/extensions/Xfixes.h>
#endif
#include <fixx11h.h>
#include <QWidget>
#include <kmanagerselection.h>
#include <netwm_def.h>
//#include <kshortcutdialog.h> //you really want to use KKeySequenceWidget
#include <limits.h>
#include <QX11Info>
namespace KWinInternal
{
#ifndef HAVE_XDAMAGE
typedef long Damage;
struct XDamageNotifyEvent
{
};
#endif
const int SUPPORTED_WINDOW_TYPES_MASK = NET::NormalMask | NET::DesktopMask | NET::DockMask
| NET::ToolbarMask | NET::MenuMask | NET::DialogMask /*| NET::OverrideMask*/ | NET::TopMenuMask
| NET::UtilityMask | NET::SplashMask | NET::DropdownMenuMask | NET::PopupMenuMask
| NET::TooltipMask | NET::NotificationMask | NET::ComboBoxMask | NET::DNDIconMask;
const long ClientWinMask = KeyPressMask | KeyReleaseMask |
ButtonPressMask | ButtonReleaseMask |
KeymapStateMask |
ButtonMotionMask |
PointerMotionMask | // need this, too!
EnterWindowMask | LeaveWindowMask |
FocusChangeMask |
ExposureMask |
StructureNotifyMask |
SubstructureRedirectMask;
const QPoint invalidPoint( INT_MIN, INT_MIN );
class Toplevel;
class Client;
class Unmanaged;
class Deleted;
class Group;
class Options;
typedef QList< Toplevel* > ToplevelList;
typedef QList< const Toplevel* > ConstToplevelList;
typedef QList< Client* > ClientList;
typedef QList< const Client* > ConstClientList;
typedef QList< Unmanaged* > UnmanagedList;
typedef QList< const Unmanaged* > ConstUnmanagedList;
typedef QList< Deleted* > DeletedList;
typedef QList< const Deleted* > ConstDeletedList;
typedef QList< Group* > GroupList;
typedef QList< const Group* > ConstGroupList;
extern Options* options;
enum Layer
{
UnknownLayer = -1,
FirstLayer = 0,
DesktopLayer = FirstLayer,
BelowLayer,
NormalLayer,
DockLayer,
AboveLayer,
ActiveLayer, // active fullscreen, or active dialog
NumLayers // number of layers, must be last
};
// yes, I know this is not 100% like standard operator++
inline void operator++( Layer& lay )
{
lay = static_cast< Layer >( lay + 1 );
}
// for Client::takeActivity()
enum ActivityFlags
{
ActivityFocus = 1 << 0, // focus the window
ActivityFocusForce = 1 << 1, // focus even if Dock etc.
ActivityRaise = 1 << 2 // raise the window
};
// Some KWin classes, mainly Client and Workspace, are very tighly coupled,
// and some of the methods of one class may be called only from speficic places.
// Those methods have additional allowed_t argument. If you pass Allowed
// as an argument to any function, make sure you really know what you're doing.
enum allowed_t { Allowed };
// some enums to have more readable code, instead of using bools
enum ForceGeometry_t { NormalGeometrySet, ForceGeometrySet };
// Areas, mostly related to Xinerama
enum clientAreaOption
{
PlacementArea, // geometry where a window will be initially placed after being mapped
MovementArea, // ??? window movement snapping area? ignore struts
MaximizeArea, // geometry to which a window will be maximized
MaximizeFullArea, // like MaximizeArea, but ignore struts - used e.g. for topmenu
FullScreenArea, // area for fullscreen windows
// these below don't depend on xinerama settings
WorkArea, // whole workarea (all screens together)
FullArea, // whole area (all screens together), ignore struts
ScreenArea // one whole screen, ignore struts
};
enum ShadeMode
{
ShadeNone, // not shaded
ShadeNormal, // normally shaded - isShade() is true only here
ShadeHover, // "shaded", but visible due to hover unshade
ShadeActivated // "shaded", but visible due to alt+tab to the window
};
enum ElectricBorder
{
ElectricTop,
ElectricTopRight,
ElectricRight,
ElectricBottomRight,
ElectricBottom,
ElectricBottomLeft,
ElectricLeft,
ElectricTopLeft,
ELECTRIC_COUNT,
ElectricNone
};
class Extensions
{
public:
static void init();
static bool shapeAvailable() { return has_shape; }
static int shapeNotifyEvent();
static bool randrAvailable() { return has_randr; }
static int randrNotifyEvent();
static bool damageAvailable() { return has_damage; }
static int damageNotifyEvent();
static bool compositeAvailable() { return has_composite; }
static bool compositeOverlayAvailable() { return has_composite && has_composite_overlay; }
static bool fixesAvailable() { return has_fixes; }
static bool hasShape( Window w );
private:
static bool has_shape;
static int shape_event_base;
static bool has_randr;
static int randr_event_base;
static bool has_damage;
static int damage_event_base;
static bool has_composite;
static bool has_composite_overlay;
static bool has_fixes;
};
class Motif
{
public:
static void readFlags( WId w, bool& noborder, bool& resize, bool& move,
bool& minimize, bool& maximize, bool& close );
struct MwmHints
{
ulong flags;
ulong functions;
ulong decorations;
long input_mode;
ulong status;
};
enum {
MWM_HINTS_FUNCTIONS = (1L << 0),
MWM_HINTS_DECORATIONS = (1L << 1),
MWM_FUNC_ALL = (1L << 0),
MWM_FUNC_RESIZE = (1L << 1),
MWM_FUNC_MOVE = (1L << 2),
MWM_FUNC_MINIMIZE = (1L << 3),
MWM_FUNC_MAXIMIZE = (1L << 4),
MWM_FUNC_CLOSE = (1L << 5)
};
};
class KWinSelectionOwner
: public KSelectionOwner
{
Q_OBJECT
public:
KWinSelectionOwner( int screen );
protected:
virtual bool genericReply( Atom target, Atom property, Window requestor );
virtual void replyTargets( Atom property, Window requestor );
virtual void getAtoms();
private:
Atom make_selection_atom( int screen );
static Atom xa_version;
};
// Class which saves original value of the variable, assigns the new value
// to it, and in the destructor restores the value.
// Used in Client::isMaximizable() and so on.
// It also casts away contness and generally this looks like a hack.
template< typename T >
class TemporaryAssign
{
public:
TemporaryAssign( const T& var, const T& value )
: variable( var ), orig( var )
{
const_cast< T& >( variable ) = value;
}
~TemporaryAssign()
{
const_cast< T& >( variable ) = orig;
}
private:
const T& variable;
T orig;
};
QByteArray getStringProperty(WId w, Atom prop, char separator=0);
void updateXTime();
void grabXServer();
void ungrabXServer();
bool grabbedXServer();
inline
Display* display()
{
return QX11Info::display();
}
inline
Window rootWindow()
{
return QX11Info::appRootWindow();
}
inline
Window xTime()
{
return QX11Info::appTime();
}
inline
int displayWidth()
{
return XDisplayWidth( display(), DefaultScreen( display()));
}
inline
int displayHeight()
{
return XDisplayHeight( display(), DefaultScreen( display()));
}
QPoint cursorPos();
class Scene;
extern Scene* scene;
inline bool compositing() { return scene != NULL; }
// the docs say it's UrgencyHint, but it's often #defined as XUrgencyHint
#ifndef UrgencyHint
#define UrgencyHint XUrgencyHint
#endif
// for STL-like algo's
#define KWIN_CHECK_PREDICATE( name, cls, check ) \
struct name \
{ \
inline bool operator()( const cls* cl ) { return check; }; \
}
#define KWIN_COMPARE_PREDICATE( name, cls, type, check ) \
struct name \
{ \
typedef type type_helper; /* in order to work also with type being 'const Client*' etc. */ \
inline name( const type_helper& compare_value ) : value( compare_value ) {}; \
inline bool operator()( const cls* cl ) { return check; }; \
const type_helper& value; \
}
#define KWIN_PROCEDURE( name, cls, action ) \
struct name \
{ \
inline void operator()( cls* cl ) { action; }; \
}
KWIN_CHECK_PREDICATE( TruePredicate, Client, cl == cl /*true, avoid warning about 'cl' */ );
template< typename T >
Client* findClientInList( const ClientList& list, T predicate )
{
for ( ClientList::ConstIterator it = list.begin(); it != list.end(); ++it)
{
if ( predicate( const_cast< const Client* >( *it)))
return *it;
}
return NULL;
}
template< typename T >
Unmanaged* findUnmanagedInList( const UnmanagedList& list, T predicate )
{
for ( UnmanagedList::ConstIterator it = list.begin(); it != list.end(); ++it)
{
if ( predicate( const_cast< const Unmanaged* >( *it)))
return *it;
}
return NULL;
}
inline
int timestampCompare( Time time1, Time time2 ) // like strcmp()
{
return NET::timestampCompare( time1, time2 );
}
inline
Time timestampDiff( Time time1, Time time2 ) // returns time2 - time1
{
return NET::timestampDiff( time1, time2 );
}
bool isLocalMachine( const QByteArray& host );
// converting between X11 mouse/keyboard state mask and Qt button/keyboard states
int qtToX11Button( Qt::MouseButton button );
Qt::MouseButton x11ToQtMouseButton( int button );
int qtToX11State( Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers );
Qt::MouseButtons x11ToQtMouseButtons( int state );
Qt::KeyboardModifiers x11ToQtKeyboardModifiers( int state );
#ifndef KCMRULES
// Qt dialogs emit no signal when closed :(
// KShortcutDialog is gone, and K(Shortcut/KeySequence)Widget should replace it and be
// good enough to not need any further hacks here. If they aren't, CONTACT ME before
// you add hacks again. --ahartmetz
#if 0
class ShortcutDialog
: public KShortcutDialog
{
Q_OBJECT
public:
ShortcutDialog( const KShortcut& cut );
virtual void accept();
signals:
void dialogDone( bool ok );
protected:
virtual void done( int r ) { KShortcutDialog::done( r ); emit dialogDone( r == Accepted ); }
};
#endif //0
#endif //KCMRULES
} // namespace
#endif
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