QConicalGradient Class Reference

The QConicalGradient class is used in combination with QBrush to specify a conical gradient brush. More...

#include <qbrush.h>

Inheritance diagram for QConicalGradient:

Collaboration diagram for QConicalGradient:

Public Member Functions
	QConicalGradient ()
	QConicalGradient (const QPointF &center, qreal startAngle)
	QConicalGradient (qreal cx, qreal cy, qreal startAngle)
	~QConicalGradient ()
QPointF	center () const
void	setCenter (const QPointF &center)
void	setCenter (qreal x, qreal y)
qreal	angle () const
void	setAngle (qreal angle)
Public Member Functions inherited from QGradient
	QGradient ()
	QGradient (Preset)
	~QGradient ()
Type	type () const
void	setSpread (Spread spread)
Spread	spread () const
void	setColorAt (qreal pos, const QColor &color)
void	setStops (const QGradientStops &stops)
QGradientStops	stops () const
CoordinateMode	coordinateMode () const
void	setCoordinateMode (CoordinateMode mode)
InterpolationMode	interpolationMode () const
void	setInterpolationMode (InterpolationMode mode)
bool	operator== (const QGradient &gradient) const
bool	operator!= (const QGradient &other) const

Additional Inherited Members
Public Types inherited from QGradient
enum	Type { LinearGradient , RadialGradient , ConicalGradient , NoGradient }
enum	Spread { PadSpread , ReflectSpread , RepeatSpread }
enum	CoordinateMode { LogicalMode , StretchToDeviceMode , ObjectBoundingMode , ObjectMode }
enum	InterpolationMode { ColorInterpolation , ComponentInterpolation }
enum	Preset {   WarmFlame = 1 , NightFade = 2 , SpringWarmth = 3 , JuicyPeach = 4 ,   YoungPassion = 5 , LadyLips = 6 , SunnyMorning = 7 , RainyAshville = 8 ,   FrozenDreams = 9 , WinterNeva = 10 , DustyGrass = 11 , TemptingAzure = 12 ,   HeavyRain = 13 , AmyCrisp = 14 , MeanFruit = 15 , DeepBlue = 16 ,   RipeMalinka = 17 , CloudyKnoxville = 18 , MalibuBeach = 19 , NewLife = 20 ,   TrueSunset = 21 , MorpheusDen = 22 , RareWind = 23 , NearMoon = 24 ,   WildApple = 25 , SaintPetersburg = 26 , PlumPlate = 28 , EverlastingSky = 29 ,   HappyFisher = 30 , Blessing = 31 , SharpeyeEagle = 32 , LadogaBottom = 33 ,   LemonGate = 34 , ItmeoBranding = 35 , ZeusMiracle = 36 , OldHat = 37 ,   StarWine = 38 , HappyAcid = 41 , AwesomePine = 42 , NewYork = 43 ,   ShyRainbow = 44 , MixedHopes = 46 , FlyHigh = 47 , StrongBliss = 48 ,   FreshMilk = 49 , SnowAgain = 50 , FebruaryInk = 51 , KindSteel = 52 ,   SoftGrass = 53 , GrownEarly = 54 , SharpBlues = 55 , ShadyWater = 56 ,   DirtyBeauty = 57 , GreatWhale = 58 , TeenNotebook = 59 , PoliteRumors = 60 ,   SweetPeriod = 61 , WideMatrix = 62 , SoftCherish = 63 , RedSalvation = 64 ,   BurningSpring = 65 , NightParty = 66 , SkyGlider = 67 , HeavenPeach = 68 ,   PurpleDivision = 69 , AquaSplash = 70 , SpikyNaga = 72 , LoveKiss = 73 ,   CleanMirror = 75 , PremiumDark = 76 , ColdEvening = 77 , CochitiLake = 78 ,   SummerGames = 79 , PassionateBed = 80 , MountainRock = 81 , DesertHump = 82 ,   JungleDay = 83 , PhoenixStart = 84 , OctoberSilence = 85 , FarawayRiver = 86 ,   AlchemistLab = 87 , OverSun = 88 , PremiumWhite = 89 , MarsParty = 90 ,   EternalConstance = 91 , JapanBlush = 92 , SmilingRain = 93 , CloudyApple = 94 ,   BigMango = 95 , HealthyWater = 96 , AmourAmour = 97 , RiskyConcrete = 98 ,   StrongStick = 99 , ViciousStance = 100 , PaloAlto = 101 , HappyMemories = 102 ,   MidnightBloom = 103 , Crystalline = 104 , PartyBliss = 106 , ConfidentCloud = 107 ,   LeCocktail = 108 , RiverCity = 109 , FrozenBerry = 110 , ChildCare = 112 ,   FlyingLemon = 113 , NewRetrowave = 114 , HiddenJaguar = 115 , AboveTheSky = 116 ,   Nega = 117 , DenseWater = 118 , Seashore = 120 , MarbleWall = 121 ,   CheerfulCaramel = 122 , NightSky = 123 , MagicLake = 124 , YoungGrass = 125 ,   ColorfulPeach = 126 , GentleCare = 127 , PlumBath = 128 , HappyUnicorn = 129 ,   AfricanField = 131 , SolidStone = 132 , OrangeJuice = 133 , GlassWater = 134 ,   NorthMiracle = 136 , FruitBlend = 137 , MillenniumPine = 138 , HighFlight = 139 ,   MoleHall = 140 , SpaceShift = 142 , ForestInei = 143 , RoyalGarden = 144 ,   RichMetal = 145 , JuicyCake = 146 , SmartIndigo = 147 , SandStrike = 148 ,   NorseBeauty = 149 , AquaGuidance = 150 , SunVeggie = 151 , SeaLord = 152 ,   BlackSea = 153 , GrassShampoo = 154 , LandingAircraft = 155 , WitchDance = 156 ,   SleeplessNight = 157 , AngelCare = 158 , CrystalRiver = 159 , SoftLipstick = 160 ,   SaltMountain = 161 , PerfectWhite = 162 , FreshOasis = 163 , StrictNovember = 164 ,   MorningSalad = 165 , DeepRelief = 166 , SeaStrike = 167 , NightCall = 168 ,   SupremeSky = 169 , LightBlue = 170 , MindCrawl = 171 , LilyMeadow = 172 ,   SugarLollipop = 173 , SweetDessert = 174 , MagicRay = 175 , TeenParty = 176 ,   FrozenHeat = 177 , GagarinView = 178 , FabledSunset = 179 , PerfectBlue = 180 ,   NumPresets }
Related Functions inherited from QGradient
	QGradientStop
	QGradientStops

Detailed Description

The QConicalGradient class is used in combination with QBrush to specify a conical gradient brush.

\inmodule QtGui

Conical gradients interpolate interpolate colors counter-clockwise around a center point.

The colors in a gradient is defined using stop points of the QGradientStop type, i.e. a position and a color. Use the QGradient::setColorAt() or the QGradient::setStops() function to define the stop points. It is the gradient's complete set of stop points that describes how the gradient area should be filled. If no stop points have been specified, a gradient of black at 0 to white at 1 is used.

In addition to the functions inherited from QGradient, the QConicalGradient class provides the angle() and center() functions returning the start angle and center of the gradient.

Note that the setSpread() function has no effect for conical gradients. The reason is that the conical gradient is closed by definition, i.e. the conical gradient fills the entire circle from 0 - 360 degrees, while the boundary of a radial or a linear gradient can be specified through its radius or final stop points, respectively.

See also

QLinearGradient, QRadialGradient, {painting/gradients}{The Gradients Example}

Definition at line 481 of file qbrush.h.

Constructor & Destructor Documentation

QConicalGradient() [1/3]

QConicalGradient::QConicalGradient

(

)

Constructs a conical with center at (0, 0) starting the interpolation at angle 0.

See also

QGradient::setColorAt(), setCenter(), setAngle()

Definition at line 2430 of file qbrush.cpp.

QConicalGradient() [2/3]

QConicalGradient::QConicalGradient	(	const QPointF &	center,
		qreal	angle
	)

Constructs a conical gradient with the given center, starting the interpolation at the given angle. The angle must be specified in degrees between 0 and 360.

See also

QGradient::setColorAt(), QGradient::setStops()

Definition at line 2392 of file qbrush.cpp.

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QConicalGradient() [3/3]

QConicalGradient::QConicalGradient	(	qreal	cx,
		qreal	cy,
		qreal	angle
	)

Constructs a conical gradient with the given center (cx, cy), starting the interpolation at the given angle. The angle must be specified in degrees between 0 and 360.

See also

QGradient::setColorAt(), QGradient::setStops()

Definition at line 2410 of file qbrush.cpp.

~QConicalGradient()

QConicalGradient::~QConicalGradient

(

)

Definition at line 2418 of file qbrush.cpp.

Member Function Documentation

angle()

qreal QConicalGradient::angle

(

)

const

Returns the start angle of the conical gradient in logical coordinates.

See also

stops()

Definition at line 2486 of file qbrush.cpp.

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center()

QPointF QConicalGradient::center

(

)

const

Returns the center of the conical gradient in logical coordinates.

See also

stops()

Definition at line 2447 of file qbrush.cpp.

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setAngle()

void QConicalGradient::setAngle

(

qreal

angle

)

Since

4.2

Sets angle to be the start angle for this conical gradient in logical coordinates.

See also

angle()

Definition at line 2502 of file qbrush.cpp.

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setCenter() [1/2]

void QConicalGradient::setCenter

(

const QPointF &

center

)

Sets the center of this conical gradient in logical coordinates to center.

See also

center()

Definition at line 2472 of file qbrush.cpp.

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setCenter() [2/2]

void QConicalGradient::setCenter ( qreal  x, qreal  y  )

inline

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

Sets the center of this conical gradient in logical coordinates to (x, y).

See also

center()

Definition at line 491 of file qbrush.h.

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The documentation for this class was generated from the following files:

• src/gui/painting/qbrush.h
• src/gui/painting/qbrush.cpp