kwin/lib/kwineffects.h
Luboš Luňák d18e4933a0 Make DesktopGrid useful also from keyboard.
svn path=/trunk/KDE/kdebase/workspace/; revision=739147
2007-11-20 16:17:08 +00:00

830 lines
28 KiB
C++

/*****************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2006 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.
******************************************************************/
// TODO MIT or some other license, perhaps move to some lib
#ifndef KWINEFFECTS_H
#define KWINEFFECTS_H
#include <kwinglobals.h>
#include <QtCore/QPair>
#include <QtCore/QRect>
#include <QtGui/QRegion>
#include <QtGui/QFont>
#include <QtCore/QVector>
#include <QtCore/QList>
#include <QtCore/QHash>
#include <KDE/KPluginFactory>
#include <assert.h>
#define KWIN_EFFECT_API_VERSION 0x000100
class KLibrary;
class KConfigGroup;
class QKeyEvent;
namespace KWin
{
class EffectWindow;
class EffectWindowGroup;
class Effect;
class WindowQuad;
class GLRenderTarget;
class GLShader;
class WindowQuadList;
class WindowPrePaintData;
class WindowPaintData;
class ScreenPrePaintData;
class ScreenPaintData;
typedef QPair< QString, Effect* > EffectPair;
typedef QPair< Effect*, Window > InputWindowPair;
typedef QList< EffectWindow* > EffectWindowList;
/**
* @short Base class for all KWin effects
*
* This is the base class for all effects. By reimplementing virtual methods
* of this class, you can customize how the windows are painted.
*
* The virtual methods of this class can broadly be divided into two
* categories: the methods used for painting and those you can use to be
* notified and react to certain events, e.g. that a window was closed.
*
* @section Chaining
* Most methods of this class are called in chain style. This means that when
* effects A and B area active then first e.g. A::paintWindow() is called and
* then from within that method B::paintWindow() is called (although
* indirectly). To achieve this, you need to make sure to call corresponding
* method in EffectsHandler class from each such method (using @ref effects
* pointer):
* @code
* void MyEffect::postPaintScreen()
* {
* // Do your own processing here
* ...
* // Call corresponding EffectsHandler method
* effects->postPaintScreen();
* }
* @endcode
*
* @section Effectsptr Effects pointer
* @ref effects pointer points to the global EffectsHandler object that you can
* use to interact with the windows.
*
* @section painting Painting stages
* Painting of windows is done in three stages:
* @li First, the prepaint pass.<br>
* Here you can specify how the windows will be painted, e.g. that they will
* be translucent and transformed.
* @li Second, the paint pass.<br>
* Here the actual painting takes place. You can change attributes such as
* opacity of windows as well as apply transformations to them. You can also
* paint something onto the screen yourself.
* @li Finally, the postpaint pass.<br>
* Here you can mark windows, part of windows or even the entire screen for
* repainting to create animations.
*
* For each stage there are *Screen() and *Window() methods. The window method
* is called for every window which the screen method is usually called just
* once.
**/
class KWIN_EXPORT Effect
{
public:
/** Flags controlling how painting is done. */
// TODO: is that ok here?
enum
{
/**
* Window (or at least part of it) will be painted opaque.
**/
PAINT_WINDOW_OPAQUE = 1 << 0,
/**
* Window (or at least part of it) will be painted translucent.
**/
PAINT_WINDOW_TRANSLUCENT = 1 << 1,
/**
* Window will be painted with transformed geometry.
**/
PAINT_WINDOW_TRANSFORMED = 1 << 2,
/**
* Paint only a region of the screen (can be optimized, cannot
* be used together with TRANSFORMED flags).
**/
PAINT_SCREEN_REGION = 1 << 3,
/**
* The whole screen will be painted with transformed geometry.
* Forces the entire screen to be painted.
**/
PAINT_SCREEN_TRANSFORMED = 1 << 4,
/**
* At least one window will be painted with transformed geometry.
* Forces the entire screen to be painted.
**/
PAINT_SCREEN_WITH_TRANSFORMED_WINDOWS = 1 << 5,
/**
* Clear whole background as the very first step, without optimizing it
**/
PAINT_SCREEN_BACKGROUND_FIRST = 1 << 6
};
/**
* Constructs new Effect object.
**/
Effect();
/**
* Destructs the Effect object.
**/
virtual ~Effect();
/**
* Called before starting to paint the screen.
* In this method you can:
* @li set whether the windows or the entire screen will be transformed
* @li change the region of the screen that will be painted
* @li do various housekeeping tasks such as initing your effect's variables
for the upcoming paint pass or updating animation's progress
**/
virtual void prePaintScreen( ScreenPrePaintData& data, int time );
/**
* In this method you can:
* @li paint something on top of the windows (by painting after calling
* effects->paintScreen())
* @li paint multiple desktops and/or multiple copies of the same desktop
* by calling effects->paintScreen() multiple times
**/
virtual void paintScreen( int mask, QRegion region, ScreenPaintData& data );
/**
* Called after all the painting has been finished.
* In this method you can:
* @li schedule next repaint in case of animations
* You shouldn't paint anything here.
**/
virtual void postPaintScreen();
/**
* Called for every window before the actual paint pass
* In this method you can:
* @li enable or disable painting of the window (e.g. enable paiting of minimized window)
* @li set window to be painted with translucency
* @li set window to be transformed
* @li request the window to be divided into multiple parts
**/
virtual void prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time );
/**
* This is the main method for painting windows.
* In this method you can:
* @li do various transformations
* @li change opacity of the window
* @li change brightness and/or saturation, if it's supported
**/
virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data );
/**
* Called for every window after all painting has been finished.
* In this method you can:
* @li schedule next repaint for individual window(s) in case of animations
* You shouldn't paint anything here.
**/
virtual void postPaintWindow( EffectWindow* w );
/**
* Can be called to draw multiple copies (e.g. thumbnails) of a window.
* You can change window's opacity/brightness/etc here, but you can't
* do any transformations
**/
virtual void drawWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data );
/**
* This function is used e.g. by the shadow effect which adds area around windows
* that needs to be painted as well - e.g. when a window is hidden and the workspace needs
* to be repainted at that area, shadow's transformWindowDamage() adds the shadow area
* to it, so that it is repainted as well.
**/
virtual QRect transformWindowDamage( EffectWindow* w, const QRect& r );
/** called when moved/resized or once after it's finished */
virtual void windowUserMovedResized( EffectWindow* c, bool first, bool last );
virtual void windowOpacityChanged( EffectWindow* c, double old_opacity );
virtual void windowAdded( EffectWindow* c );
virtual void windowClosed( EffectWindow* c );
virtual void windowDeleted( EffectWindow* c );
virtual void windowActivated( EffectWindow* c );
virtual void windowMinimized( EffectWindow* c );
virtual void windowUnminimized( EffectWindow* c );
virtual void windowInputMouseEvent( Window w, QEvent* e );
virtual void desktopChanged( int old );
virtual void windowDamaged( EffectWindow* w, const QRect& r );
virtual void windowGeometryShapeChanged( EffectWindow* w, const QRect& old );
virtual void mouseChanged( const QPoint& pos, const QPoint& old,
Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers );
virtual void grabbedKeyboardEvent( QKeyEvent* e );
virtual void tabBoxAdded( int mode );
virtual void tabBoxClosed();
virtual void tabBoxUpdated();
virtual bool borderActivated( ElectricBorder border );
static int displayWidth();
static int displayHeight();
static QPoint cursorPos();
/**
* Linearly interpolates between @p x and @p y.
*
* Returns @p x when @p a = 0; returns @p y when @p a = 1.
**/
static double interpolate(double x, double y, double a)
{
return x * (1 - a) + y * a;
}
/** Helper to set WindowPaintData and QRegion to necessary transformations so that
* a following drawWindow() would put the window at the requested geometry (useful for thumbnails)
**/
static void setPositionTransformations( WindowPaintData& data, QRect& region, EffectWindow* w,
const QRect& r, Qt::AspectRatioMode aspect );
};
/**
* Defines the class to be used for effect with given name.
* The name must be same as effect's X-KDE-PluginInfo-Name values in .desktop
* file, but without the "kwin4_effect_" prefix.
* E.g. KWIN_EFFECT( flames, MyFlameEffect )
* In this case object of MyFlameEffect class would be created when effect
* "flames" (which has X-KDE-PluginInfo-Name=kwin4_effect_flames in .desktop
* file) is loaded.
**/
#define KWIN_EFFECT( name, classname ) \
extern "C" { \
KWIN_EXPORT Effect* effect_create_kwin4_effect_##name() { return new classname; } \
}
/**
* Defines the function used to check whether an effect is supported
* E.g. KWIN_EFFECT_SUPPORTED( flames, MyFlameEffect::supported() )
**/
#define KWIN_EFFECT_SUPPORTED( name, function ) \
extern "C" { \
KWIN_EXPORT bool effect_supported_kwin4_effect_##name() { return function; } \
}
/**
* Defines the function used to retrieve an effect's config widget
* E.g. KWIN_EFFECT_CONFIG( flames, MyFlameEffectConfig )
**/
#define KWIN_EFFECT_CONFIG( name, classname ) \
K_PLUGIN_FACTORY(name##_factory, registerPlugin<classname>();) \
K_EXPORT_PLUGIN(name##_factory("kcm_kwineffect_" #name))
/**
* The declaration of the factory to export the effect
**/
#define KWIN_EFFECT_CONFIG_FACTORY K_PLUGIN_FACTORY_DECLARATION(EffectFactory)
/**
* @short Manager class that handles all the effects.
*
* This class creates Effect objects and calls it's appropriate methods.
*
* Effect objects can call methods of this class to interact with the
* workspace, e.g. to activate or move a specific window, change current
* desktop or create a special input window to receive mouse and keyboard
* events.
**/
class KWIN_EXPORT EffectsHandler
{
friend class Effect;
public:
EffectsHandler(CompositingType type);
virtual ~EffectsHandler();
// for use by effects
virtual void prePaintScreen( ScreenPrePaintData& data, int time ) = 0;
virtual void paintScreen( int mask, QRegion region, ScreenPaintData& data ) = 0;
virtual void postPaintScreen() = 0;
virtual void prePaintWindow( EffectWindow* w, WindowPrePaintData& data, int time ) = 0;
virtual void paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data ) = 0;
virtual void postPaintWindow( EffectWindow* w ) = 0;
virtual void drawWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data ) = 0;
virtual QRect transformWindowDamage( EffectWindow* w, const QRect& r );
// Functions for handling input - e.g. when an Expose-like effect is shown, an input window
// covering the whole screen is created and all mouse events will be intercepted by it.
// The effect's windowInputMouseEvent() will get called with such events.
virtual Window createInputWindow( Effect* e, int x, int y, int w, int h, const QCursor& cursor ) = 0;
virtual Window createInputWindow( Effect* e, const QRect& r, const QCursor& cursor );
virtual Window createFullScreenInputWindow( Effect* e, const QCursor& cursor );
virtual void destroyInputWindow( Window w ) = 0;
virtual QPoint cursorPos() const = 0;
virtual bool grabKeyboard( Effect* effect ) = 0;
virtual void ungrabKeyboard() = 0;
virtual void checkElectricBorder(const QPoint &pos, Time time) = 0;
virtual void reserveElectricBorder( ElectricBorder border ) = 0;
virtual void unreserveElectricBorder( ElectricBorder border ) = 0;
virtual void reserveElectricBorderSwitching( bool reserve ) = 0;
// functions that allow controlling windows/desktop
virtual void activateWindow( EffectWindow* c ) = 0;
virtual EffectWindow* activeWindow() const = 0 ;
virtual void moveWindow( EffectWindow* w, const QPoint& pos ) = 0;
virtual void windowToDesktop( EffectWindow* w, int desktop ) = 0;
//
virtual int currentDesktop() const = 0;
virtual int numberOfDesktops() const = 0;
virtual void setCurrentDesktop( int desktop ) = 0;
virtual QString desktopName( int desktop ) const = 0;
virtual QRect clientArea( clientAreaOption, const QPoint& p, int desktop ) const = 0;
virtual void calcDesktopLayout(int* x, int* y, Qt::Orientation* orientation) const = 0;
virtual bool optionRollOverDesktops() const = 0;
virtual int desktopToLeft( int desktop, bool wrap ) const = 0;
virtual int desktopToRight( int desktop, bool wrap ) const = 0;
virtual int desktopUp( int desktop, bool wrap ) const = 0;
virtual int desktopDown( int desktop, bool wrap ) const = 0;
virtual EffectWindowList stackingOrder() const = 0;
// window will be temporarily painted as if being at the top of the stack
virtual void setElevatedWindow( EffectWindow* w, bool set ) = 0;
virtual void setTabBoxWindow(EffectWindow*) = 0;
virtual void setTabBoxDesktop(int) = 0;
virtual EffectWindowList currentTabBoxWindowList() const = 0;
virtual void refTabBox() = 0;
virtual void unrefTabBox() = 0;
virtual void closeTabBox() = 0;
virtual QList< int > currentTabBoxDesktopList() const = 0;
virtual int currentTabBoxDesktop() const = 0;
virtual EffectWindow* currentTabBoxWindow() const = 0;
virtual void setActiveFullScreenEffect( Effect* e ) = 0;
virtual Effect* activeFullScreenEffect() const = 0;
virtual void pushRenderTarget(GLRenderTarget* target) = 0;
virtual GLRenderTarget* popRenderTarget() = 0;
/**
* Schedules the entire workspace to be repainted next time.
* If you call it during painting (including prepaint) then it does not
* affect the current painting.
**/
virtual void addRepaintFull() = 0;
virtual void addRepaint( const QRect& r ) = 0;
virtual void addRepaint( int x, int y, int w, int h ) = 0;
CompositingType compositingType() const;
virtual unsigned long xrenderBufferPicture() = 0;
virtual void reconfigure() = 0;
/**
* Paints given text onto screen, possibly in elided form
* @param text
* @param center center point of the painted text
* @param maxwidth if text is longer than this, is will be elided
* @param color color of the text, may contain alpha
* @param font font for the text
**/
bool paintText( const QString& text, const QPoint& center, int maxwidth,
const QColor& color, const QFont& font = QFont() );
bool paintTextWithBackground( const QString& text, const QPoint& center, int maxwidth,
const QColor& color, const QColor& bgcolor,
const QFont& font = QFont() );
/**
* Sends message over DCOP to reload given effect.
* @param effectname effect's name without "kwin4_effect_" prefix.
* Can be called from effect's config module to apply config changes.
**/
static void sendReloadMessage( const QString& effectname );
/**
* @return @ref KConfigGroup which holds given effect's config options
**/
static KConfigGroup effectConfig( const QString& effectname );
protected:
QVector< EffectPair > loaded_effects;
QHash< QString, KLibrary* > effect_libraries;
QList< InputWindowPair > input_windows;
//QHash< QString, EffectFactory* > effect_factories;
int current_paint_screen;
int current_paint_window;
int current_draw_window;
int current_transform;
CompositingType compositing_type;
};
/**
* @short Representation of a window used by/for Effect classes.
*
* The purpose is to hide internal data and also to serve as a single
* representation for the case when Client/Unmanaged becomes Deleted.
**/
class KWIN_EXPORT EffectWindow
{
public:
/** Flags explaining why painting should be disabled */
enum
{
/** Window will not be painted */
PAINT_DISABLED = 1 << 0,
/** Window will not be painted because it is deleted */
PAINT_DISABLED_BY_DELETE = 1 << 1,
/** Window will not be painted because of which desktop it's on */
PAINT_DISABLED_BY_DESKTOP = 1 << 2,
/** Window will not be painted because it is minimized */
PAINT_DISABLED_BY_MINIMIZE = 1 << 3
};
EffectWindow();
virtual ~EffectWindow();
virtual void enablePainting( int reason ) = 0;
virtual void disablePainting( int reason ) = 0;
virtual bool isPaintingEnabled() = 0;
virtual void addRepaint( const QRect& r ) = 0;
virtual void addRepaint( int x, int y, int w, int h ) = 0;
virtual void addRepaintFull() = 0;
virtual void refWindow() = 0;
virtual void unrefWindow() = 0;
virtual bool isDeleted() const = 0;
virtual bool isMinimized() const = 0;
virtual double opacity() const = 0;
virtual bool isOnDesktop( int d ) const;
virtual bool isOnCurrentDesktop() const;
virtual bool isOnAllDesktops() const = 0;
virtual int desktop() const = 0; // prefer isOnXXX()
virtual int x() const = 0;
virtual int y() const = 0;
virtual int width() const = 0;
virtual int height() const = 0;
virtual QRect geometry() const = 0;
virtual QPoint pos() const = 0;
virtual QSize size() const = 0;
virtual QRect rect() const = 0;
virtual bool isMovable() const = 0;
virtual bool isUserMove() const = 0;
virtual bool isUserResize() const = 0;
virtual QRect iconGeometry() const = 0;
/**
* Geometry of the actual window contents inside the whole (including decorations) window.
*/
virtual QRect contentsRect() const = 0;
bool hasDecoration() const;
virtual QString caption() const = 0;
virtual QPixmap icon() const = 0;
virtual QString windowClass() const = 0;
virtual QString windowRole() const = 0;
virtual const EffectWindowGroup* group() const = 0;
virtual bool isDesktop() const = 0;
virtual bool isDock() const = 0;
virtual bool isToolbar() const = 0;
virtual bool isTopMenu() const = 0;
virtual bool isMenu() const = 0;
virtual bool isNormalWindow() const = 0; // normal as in 'NET::Normal or NET::Unknown non-transient'
virtual bool isSpecialWindow() const = 0;
virtual bool isDialog() const = 0;
virtual bool isSplash() const = 0;
virtual bool isUtility() const = 0;
virtual bool isDropdownMenu() const = 0;
virtual bool isPopupMenu() const = 0; // a context popup, not dropdown, not torn-off
virtual bool isTooltip() const = 0;
virtual bool isNotification() const = 0;
virtual bool isComboBox() const = 0;
virtual bool isDNDIcon() const = 0;
virtual bool isModal() const = 0;
virtual EffectWindow* findModal() = 0;
virtual EffectWindowList mainWindows() const = 0;
// TODO internal?
virtual WindowQuadList buildQuads() const = 0;
};
class KWIN_EXPORT EffectWindowGroup
{
public:
virtual ~EffectWindowGroup();
virtual EffectWindowList members() const = 0;
};
/**
* @short Vertex class
*
* A vertex is one position in a window. WindowQuad consists of four WindowVertex objects
* and represents one part of a window.
**/
class KWIN_EXPORT WindowVertex
{
public:
double x() const;
double y() const;
void move( double x, double y );
void setX( double x );
void setY( double y );
double originalX() const;
double originalY() const;
WindowVertex();
WindowVertex( double x, double y, double tx, double ty );
private:
friend class WindowQuad;
friend class WindowQuadList;
double px, py; // position
double ox, oy; // origional position
double tx, ty; // texture coords
};
enum WindowQuadType
{
WindowQuadError, // for the stupid default ctor
WindowQuadContents,
WindowQuadDecoration
};
/**
* @short Class representing one area of a window.
*
* WindowQuads consists of four WindowVertex objects and represents one part of a window.
*/
// NOTE: This class expects the (original) vertices to be in the clockwise order starting from topleft.
class KWIN_EXPORT WindowQuad
{
public:
explicit WindowQuad( WindowQuadType type );
WindowQuad makeSubQuad( double x1, double y1, double x2, double y2 ) const;
WindowVertex& operator[]( int index );
const WindowVertex& operator[]( int index ) const;
bool decoration() const;
double left() const;
double right() const;
double top() const;
double bottom() const;
double originalLeft() const;
double originalRight() const;
double originalTop() const;
double originalBottom() const;
bool smoothNeeded() const;
bool isTransformed() const;
private:
friend class WindowQuadList;
WindowVertex verts[ 4 ];
WindowQuadType type; // 0 - contents, 1 - decoration
};
class KWIN_EXPORT WindowQuadList
: public QList< WindowQuad >
{
public:
WindowQuadList splitAtX( double x ) const;
WindowQuadList splitAtY( double y ) const;
WindowQuadList makeGrid( int maxquadsize ) const;
WindowQuadList select( WindowQuadType type ) const;
WindowQuadList filterOut( WindowQuadType type ) const;
bool smoothNeeded() const;
void makeArrays( float** vertices, float** texcoords ) const;
};
class KWIN_EXPORT WindowPrePaintData
{
public:
int mask;
QRegion paint;
QRegion clip;
WindowQuadList quads;
/**
* Simple helper that sets data to say the window will be painted as non-opaque.
* Takes also care of changing the regions.
*/
void setTranslucent();
/**
* Helper to mark that this window will be transformed
**/
void setTransformed();
};
class KWIN_EXPORT WindowPaintData
{
public:
WindowPaintData( EffectWindow* w );
/**
* Window opacity, in range 0 = transparent to 1 = fully opaque
* Opacity for contents is opacity*contents_opacity, the same
* way for decoration.
*/
double opacity;
double contents_opacity;
double decoration_opacity;
double xScale;
double yScale;
int xTranslate;
int yTranslate;
/**
* Saturation of the window, in range [0; 1]
* 1 means that the window is unchanged, 0 means that it's completely
* unsaturated (greyscale). 0.5 would make the colors less intense,
* but not completely grey
**/
double saturation;
/**
* Brightness of the window, in range [0; 1]
* 1 means that the window is unchanged, 0 means that it's completely
* black. 0.5 would make it 50% darker than usual
**/
double brightness;
WindowQuadList quads;
/**
* Shader to be used for rendering, if any.
*/
GLShader* shader;
};
class KWIN_EXPORT ScreenPaintData
{
public:
ScreenPaintData();
double xScale;
double yScale;
int xTranslate;
int yTranslate;
};
class KWIN_EXPORT ScreenPrePaintData
{
public:
int mask;
QRegion paint;
};
/**
* Pointer to the global EffectsHandler object.
**/
extern KWIN_EXPORT EffectsHandler* effects;
/***************************************************************
WindowVertex
***************************************************************/
inline
WindowVertex::WindowVertex()
: px( 0 ), py( 0 ), tx( 0 ), ty( 0 )
{
}
inline
WindowVertex::WindowVertex( double _x, double _y, double _tx, double _ty )
: px( _x ), py( _y ), ox( _x ), oy( _y ), tx( _tx ), ty( _ty )
{
}
inline
double WindowVertex::x() const
{
return px;
}
inline
double WindowVertex::y() const
{
return py;
}
inline
double WindowVertex::originalX() const
{
return ox;
}
inline
double WindowVertex::originalY() const
{
return oy;
}
inline
void WindowVertex::move( double x, double y )
{
px = x;
py = y;
}
inline
void WindowVertex::setX( double x )
{
px = x;
}
inline
void WindowVertex::setY( double y )
{
py = y;
}
/***************************************************************
WindowQuad
***************************************************************/
inline
WindowQuad::WindowQuad( WindowQuadType t )
: type( t )
{
}
inline
WindowVertex& WindowQuad::operator[]( int index )
{
assert( index >= 0 && index < 4 );
return verts[ index ];
}
inline
const WindowVertex& WindowQuad::operator[]( int index ) const
{
assert( index >= 0 && index < 4 );
return verts[ index ];
}
inline
bool WindowQuad::decoration() const
{
assert( type != WindowQuadError );
return type == WindowQuadDecoration;
}
inline
bool WindowQuad::isTransformed() const
{
return !( verts[ 0 ].px == verts[ 0 ].ox && verts[ 0 ].py == verts[ 0 ].oy
&& verts[ 1 ].px == verts[ 1 ].ox && verts[ 1 ].py == verts[ 1 ].oy
&& verts[ 2 ].px == verts[ 2 ].ox && verts[ 2 ].py == verts[ 2 ].oy
&& verts[ 3 ].px == verts[ 3 ].ox && verts[ 3 ].py == verts[ 3 ].oy );
}
inline
double WindowQuad::left() const
{
return qMin( verts[ 0 ].px, qMin( verts[ 1 ].px, qMin( verts[ 2 ].px, verts[ 3 ].px )));
}
inline
double WindowQuad::right() const
{
return qMax( verts[ 0 ].px, qMax( verts[ 1 ].px, qMax( verts[ 2 ].px, verts[ 3 ].px )));
}
inline
double WindowQuad::top() const
{
return qMin( verts[ 0 ].py, qMin( verts[ 1 ].py, qMin( verts[ 2 ].py, verts[ 3 ].py )));
}
inline
double WindowQuad::bottom() const
{
return qMax( verts[ 0 ].py, qMax( verts[ 1 ].py, qMax( verts[ 2 ].py, verts[ 3 ].py )));
}
inline
double WindowQuad::originalLeft() const
{
return verts[ 0 ].ox;
}
inline
double WindowQuad::originalRight() const
{
return verts[ 2 ].ox;
}
inline
double WindowQuad::originalTop() const
{
return verts[ 0 ].oy;
}
inline
double WindowQuad::originalBottom() const
{
return verts[ 2 ].oy;
}
} // namespace
#endif // KWINEFFECTS_H