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Qyoto
4.0.5
Qyoto is a C# language binding for Qt
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The QStyleOptionGraphicsItem class is used to describe the parameters needed to draw a QGraphicsItem. More...
Public Types | |
| enum | StyleOptionType { Type = 17 } |
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| enum | StyleOptionVersion { Version = 1 } |
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 Public Types inherited from QtGui.QStyleOption | |
| enum | OptionType { SO_Button = 2, SO_ComboBox = 983044, SO_Complex = 983040, SO_ComplexCustomBase = 251658240, SO_CustomBase = 3840, SO_Default = 0, SO_DockWidget = 10, SO_FocusRect = 1, SO_Frame = 5, SO_GraphicsItem = 17, SO_GroupBox = 983047, SO_Header = 8, SO_MenuItem = 4, SO_ProgressBar = 6, SO_Q3DockWindow = 9, SO_Q3ListView = 983045, SO_Q3ListViewItem = 11, SO_RubberBand = 15, SO_SizeGrip = 983048, SO_Slider = 983041, SO_SpinBox = 983042, SO_Tab = 3, SO_TabBarBase = 14, SO_TabWidgetFrame = 13, SO_TitleBar = 983046, SO_ToolBar = 16, SO_ToolBox = 7, SO_ToolButton = 983043, SO_ViewItem = 12 } |
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| enum | StyleOptionType { Type = 0 } |
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| enum | StyleOptionVersion { Version = 1 } |
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Public Member Functions | |
| QStyleOptionGraphicsItem () | |
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| QStyleOptionGraphicsItem (QStyleOptionGraphicsItem other) | |
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| override void | CreateProxy () |
| new void | Dispose () |
| Public Member Functions inherited from QtGui.QStyleOption | |
| QStyleOption (QStyleOption other) | |
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| QStyleOption (int version=(int) QStyleOption.StyleOptionVersion.Version, int type=(int) QStyleOption.OptionType.SO_Default) | |
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| new void | Init (QWidget w) |
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| new void | InitFrom (QWidget w) |
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| new void | Dispose () |
Static Public Member Functions | |
| static double | LevelOfDetailFromTransform (QTransform worldTransform) |
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Protected Member Functions | |
| QStyleOptionGraphicsItem (System.Type dummy) | |
| QStyleOptionGraphicsItem (int version) | |
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| Protected Member Functions inherited from QtGui.QStyleOption | |
| QStyleOption (System.Type dummy) | |
Properties | |
| new QRectF | ExposedRect [get, set] |
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| new double | LevelOfDetail [get, set] |
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| new QMatrix | Matrix [get, set] |
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| Properties inherited from QtGui.QStyleOption | |
| virtual System.IntPtr | SmokeObject [get, set] |
| new Qt.LayoutDirection | Direction [get, set] |
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| new QFontMetrics | FontMetrics [get, set] |
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| new QPalette | Palette [get, set] |
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| new QRect | Rect [get, set] |
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| new QStyle.StateFlag | State [get, set] |
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| new int | Type [get, set] |
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| new int | Version [get, set] |
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Additional Inherited Members | |
| Protected Attributes inherited from QtGui.QStyleOption | |
| SmokeInvocation | interceptor |
The QStyleOptionGraphicsItem class is used to describe the parameters needed to draw a QGraphicsItem.
For performance reasons, the access to the member variables is direct (i.e., using the . or -> operator). This low-level feel makes the structures straightforward to use and emphasizes that these are simply parameters.
For an example demonstrating how style options can be used, see the Styles example.
See also QStyleOption and QGraphicsItem::paint().
This enum is used to hold information about the type of the style option, and is defined for each QStyleOption subclass.
The type is used internally by QStyleOption, its subclasses, and qstyleoption_cast() to determine the type of style option. In general you do not need to worry about this unless you want to create your own QStyleOption subclass and your own styles.
See also StyleOptionVersion.
This enum is used to hold information about the version of the style option, and is defined for each QStyleOption subclass.
The version is used by QStyleOption subclasses to implement extensions without breaking compatibility. If you use qstyleoption_cast(), you normally do not need to check it.
See also StyleOptionType.
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protected |
| QtGui.QStyleOptionGraphicsItem.QStyleOptionGraphicsItem | ( | ) |
Constructs a QStyleOptionGraphicsItem.
| QtGui.QStyleOptionGraphicsItem.QStyleOptionGraphicsItem | ( | QStyleOptionGraphicsItem | other | ) |
Constructs a copy of other.
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protected |
Constructs a QStyleOptionGraphicsItem.
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virtual |
Reimplemented from QtGui.QStyleOption.
| new void QtGui.QStyleOptionGraphicsItem.Dispose | ( | ) |
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static |
Returns the level of detail from the worldTransform.
Its value represents the maximum value of the height and width of a unity rectangle, mapped using the worldTransform of the painter used to draw the item. By default, if no transformations are applied, its value is 1. If zoomed out 1:2, the level of detail will be 0.5, and if zoomed in 2:1, its value is 2.
This function was introduced in Qt 4.6.
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getset |
This variable holds the exposed rectangle, in item coordinates.
Make use of this rectangle to speed up item drawing when only parts of the item are exposed. If the whole item is exposed, this rectangle will be the same as QGraphicsItem::boundingRect().
This member is only initialized for items that have the QGraphicsItem::ItemUsesExtendedStyleOption flag set.
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getset |
Use QStyleOptionGraphicsItem::levelOfDetailFromTransform() together with QPainter::worldTransform() instead.
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getset |
This variable holds the complete transformation matrix for the item.
The QMatrix provided through this member does include information about any perspective transformations applied to the view or item. To get the correct transformation matrix, use QPainter::transform() on the painter passed into the QGraphicsItem::paint() implementation.
This matrix is the combination of the item's scene matrix and the matrix of the painter used for drawing the item. It is provided for convenience, allowing anvanced level-of-detail metrics that can be used to speed up item drawing.
To find the dimensions of an item in screen coordinates (i.e., pixels), you can use the mapping functions of QMatrix, such as QMatrix::map().
This member is only initialized for items that have the QGraphicsItem::ItemUsesExtendedStyleOption flag set.
See also QStyleOptionGraphicsItem::levelOfDetailFromTransform().
1.8.2 
