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Qt 4.8
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Qt 4.8
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The QStyleOptionHeader class is used to describe the parameters for drawing a header. More...
#include <qstyleoption.h>
Public Types | |
| enum | SectionPosition { Beginning, Middle, End, OnlyOneSection } |
| This enum lets you know where the section's position is in relation to the other sections. More... | |
| enum | SelectedPosition { NotAdjacent, NextIsSelected, PreviousIsSelected, NextAndPreviousAreSelected } |
| This enum lets you know where the section's position is in relation to the selected section. More... | |
| enum | SortIndicator { None, SortUp, SortDown } |
| Indicates which direction the sort indicator should be drawn. More... | |
| enum | StyleOptionType { Type = SO_Header } |
| This enum is used to hold information about the type of the style option, and is defined for each QStyleOption subclass. More... | |
| enum | StyleOptionVersion { Version = 1 } |
| This enum is used to hold information about the version of the style option, and is defined for each QStyleOption subclass. More... | |
 Public Types inherited from QStyleOption | |
| enum | OptionType { SO_Default, SO_FocusRect, SO_Button, SO_Tab, SO_MenuItem, SO_Frame, SO_ProgressBar, SO_ToolBox, SO_Header, SO_Q3DockWindow, SO_DockWidget, SO_Q3ListViewItem, SO_ViewItem, SO_TabWidgetFrame, SO_TabBarBase, SO_RubberBand, SO_ToolBar, SO_GraphicsItem, SO_Complex = 0xf0000, SO_Slider, SO_SpinBox, SO_ToolButton, SO_ComboBox, SO_Q3ListView, SO_TitleBar, SO_GroupBox, SO_SizeGrip, SO_CustomBase = 0xf00, SO_ComplexCustomBase = 0xf000000 } |
| This enum is used internally by QStyleOption, its subclasses, and qstyleoption_cast() to determine the type of style option. More... | |
| enum | StyleOptionType { Type = SO_Default } |
| This enum is used to hold information about the type of the style option, and is defined for each QStyleOption subclass. More... | |
| enum | StyleOptionVersion { Version = 1 } |
| This enum is used to hold information about the version of the style option, and is defined for each QStyleOption subclass. More... | |
Public Functions | |
| QStyleOptionHeader () | |
| Constructs a QStyleOptionHeader, initializing the members variables to their default values. More... | |
| QStyleOptionHeader (const QStyleOptionHeader &other) | |
| Constructs a copy of the other style option. More... | |
| Public Functions inherited from QStyleOption | |
| void | init (const QWidget *w) |
| Use initFrom(widget) instead. More... | |
| void | initFrom (const QWidget *w) |
| QStyleOption & | operator= (const QStyleOption &other) |
| Assign other to this QStyleOption. More... | |
| QStyleOption (int version=QStyleOption::Version, int type=SO_Default) | |
| Constructs a QStyleOption with the specified version and type. More... | |
| QStyleOption (const QStyleOption &other) | |
| Constructs a copy of other. More... | |
| ~QStyleOption () | |
| Destroys this style option object. More... | |
Public Variables | |
| QIcon | icon |
| the icon of the header More... | |
| Qt::Alignment | iconAlignment |
| the alignment flags for the icon of the header More... | |
| Qt::Orientation | orientation |
| the header's orientation (horizontal or vertical) More... | |
| SectionPosition | position |
| the section's position in relation to the other sections More... | |
| int | section |
| which section of the header is being painted More... | |
| SelectedPosition | selectedPosition |
| the section's position in relation to the selected section More... | |
| SortIndicator | sortIndicator |
| the direction the sort indicator should be drawn More... | |
| QString | text |
| the text of the header More... | |
| Qt::Alignment | textAlignment |
| the alignment flags for the text of the header More... | |
| Public Variables inherited from QStyleOption | |
| Qt::LayoutDirection | direction |
| the text layout direction that should be used when drawing text in the control More... | |
| QFontMetrics | fontMetrics |
| the font metrics that should be used when drawing text in the control More... | |
| QPalette | palette |
| the palette that should be used when painting the control More... | |
| QRect | rect |
| the area that should be used for various calculations and painting More... | |
| QStyle::State | state |
| the style flags that are used when drawing the control More... | |
| int | type |
| the option type of the style option More... | |
| int | version |
| the version of the style option More... | |
Protected Functions | |
| QStyleOptionHeader (int version) | |
Additional Inherited Members | |
| Related Functions inherited from QStyleOption | |
| T | qstyleoption_cast (const QStyleOption *option) |
| T | qstyleoption_cast (QStyleOption *option) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. More... | |
The QStyleOptionHeader class is used to describe the parameters for drawing a header.
QStyleOptionHeader contains all the information that QStyle functions need to draw the item views' header pane, header sort arrow, and header label.
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 used by the style functions.
For an example demonstrating how style options can be used, see the widgets/styles{Styles} example.
Definition at line 251 of file qstyleoption.h.
This enum lets you know where the section's position is in relation to the other sections.
| Enumerator | |
|---|---|
| Beginning | |
| Middle | |
| End | |
| OnlyOneSection | |
Definition at line 257 of file qstyleoption.h.
This enum lets you know where the section's position is in relation to the selected section.
| Enumerator | |
|---|---|
| NotAdjacent | |
| NextIsSelected | |
| PreviousIsSelected | |
| NextAndPreviousAreSelected | |
Definition at line 258 of file qstyleoption.h.
Indicates which direction the sort indicator should be drawn.
| Enumerator | |
|---|---|
| None | |
| SortUp | |
| SortDown | |
Definition at line 260 of file qstyleoption.h.
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.
| Enumerator | |
|---|---|
| Type | |
Definition at line 254 of file qstyleoption.h.
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.
| Enumerator | |
|---|---|
| Version | |
Definition at line 255 of file qstyleoption.h.
| QStyleOptionHeader::QStyleOptionHeader | ( | ) |
Constructs a QStyleOptionHeader, initializing the members variables to their default values.
Definition at line 1494 of file qstyleoption.cpp.
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inline |
Constructs a copy of the other style option.
Definition at line 273 of file qstyleoption.h.
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protected |
Definition at line 1506 of file qstyleoption.cpp.
| QStyleOptionHeader::icon |
the icon of the header
The default value is an empty icon, i.e. an icon with neither a pixmap nor a filename.
Definition at line 265 of file qstyleoption.h.
Referenced by QHeaderView::paintSection(), and QHeaderView::sectionSizeFromContents().
| QStyleOptionHeader::iconAlignment |
the alignment flags for the icon of the header
The default value is Qt::AlignLeft.
Definition at line 266 of file qstyleoption.h.
Referenced by QHeaderView::paintSection().
| QStyleOptionHeader::orientation |
the header's orientation (horizontal or vertical)
The default orientation is Qt::Horizontal
Definition at line 270 of file qstyleoption.h.
Referenced by QHeaderView::initStyleOption(), and QHeaderView::paintSection().
| QStyleOptionHeader::position |
the section's position in relation to the other sections
The default value is QStyleOptionHeader::Beginning.
Definition at line 267 of file qstyleoption.h.
Referenced by QTableCornerButton::paintEvent(), and QHeaderView::paintSection().
| QStyleOptionHeader::section |
which section of the header is being painted
The default value is 0.
Definition at line 262 of file qstyleoption.h.
Referenced by QHeaderView::initStyleOption(), QHeaderView::paintSection(), and QHeaderView::sectionSizeFromContents().
| QStyleOptionHeader::selectedPosition |
the section's position in relation to the selected section
The default value is QStyleOptionHeader::NotAdjacent
Definition at line 268 of file qstyleoption.h.
Referenced by QHeaderView::paintSection().
| QStyleOptionHeader::sortIndicator |
the direction the sort indicator should be drawn
The default value is QStyleOptionHeader::None.
Definition at line 269 of file qstyleoption.h.
Referenced by QHeaderView::paintSection().
| QStyleOptionHeader::text |
the text of the header
The default value is an empty string.
Definition at line 263 of file qstyleoption.h.
Referenced by QHeaderView::paintSection(), QHeaderView::sectionSizeFromContents(), and QMacStyle::sizeFromContents().
| QStyleOptionHeader::textAlignment |
the alignment flags for the text of the header
The default value is Qt::AlignLeft.
Definition at line 264 of file qstyleoption.h.
Referenced by QHeaderView::paintSection().