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QtGui Module

The QtGui module extends QtCore with GUI functionality. More...

Types

class QAbstractButton
class QAbstractGraphicsShapeItem
class QAbstractItemDelegate
class QAbstractItemView
class QAbstractPrintDialog
class QAbstractProxyModel
class QAbstractScrollArea
class QAbstractSlider
class QAbstractSpinBox
class QAbstractTextDocumentLayout
class QAction
class QActionEvent
class QActionGroup
class QApplication
class QBitmap
class QBoxLayout
class QBrush
class QButtonGroup
class QCalendarWidget
class QCheckBox
class QClipboard
class QCloseEvent
class QColor
class QColorDialog
class QColumnView
class QComboBox
class QCompleter
class QConicalGradient
class QContextMenuEvent
class QCursor
class QDataWidgetMapper
class QDateEdit
class QDateTimeEdit
class QDesktopServices
class QDesktopWidget
class QDial
class QDialog
class QDialogButtonBox
class QDirModel
class QDockWidget
class QDoubleSpinBox
class QDoubleValidator
class QDrag
class QDragEnterEvent
class QDragLeaveEvent
class QDragMoveEvent
class QDropEvent
class QErrorMessage
class QFileDialog
class QFileIconProvider
class QFileOpenEvent
class QFocusEvent
class QFocusFrame
class QFont
class QFontComboBox
class QFontDatabase
class QFontDialog
class QFontInfo
class QFontMetrics
class QFontMetricsF
class QFrame
class QGradient
class QGraphicsEllipseItem
class QGraphicsItem
class QGraphicsItemAnimation
class QGraphicsItemGroup
class QGraphicsLineItem
class QGraphicsPathItem
class QGraphicsPixmapItem
class QGraphicsPolygonItem
class QGraphicsRectItem
class QGraphicsScene
class QGraphicsSceneContextMenuEvent
class QGraphicsSceneDragDropEvent
class QGraphicsSceneEvent
class QGraphicsSceneHelpEvent
class QGraphicsSceneHoverEvent
class QGraphicsSceneMouseEvent
class QGraphicsSceneWheelEvent
class QGraphicsSimpleTextItem
class QGraphicsTextItem
class QGraphicsView
class QGridLayout
class QGroupBox
class QHBoxLayout
class QHeaderView
class QHelpEvent
class QHideEvent
class QHoverEvent
class QIcon
class QIconDragEvent
class QIconEngine
class QIconEngineV2
class QImage
class QImageIOHandler
class QImageReader
class QImageWriter
class QInputContext
class QInputDialog
class QInputEvent
class QInputMethodEvent
class QIntValidator
class QItemDelegate
class QItemEditorCreatorBase
class QItemEditorFactory
class QItemSelection
class QItemSelectionModel
class QItemSelectionRange
class QKeyEvent
class QKeySequence
class QLabel
class QLayout
class QLayoutItem
class QLCDNumber
class QLinearGradient
class QLineEdit
class QListView
class QListWidget
class QListWidgetItem
class QMainWindow
class QMatrix
class QMdiArea
class QMdiSubWindow
class QMenu
class QMenuBar
class QMessageBox
class QMimeSource
class QMouseEvent
class QMoveEvent
class QMovie
class QPageSetupDialog
class QPaintDevice
class QPaintEngine
class QPaintEngineState
class QPainter
class QPainterPath
class QPainterPathStroker
class QPaintEvent
class QPalette
class QPen
class QPicture
class QPictureIO
class QPixmap
class QPixmapCache
class QPolygon
class QPolygonF
class QPrintDialog
class QPrintEngine
class QPrinter
class QProgressBar
class QProgressDialog
class QProxyModel
class QPushButton
class QRadialGradient
class QRadioButton
class QRegExpValidator
class QRegion
class QResizeEvent
class QRubberBand
class QScrollArea
class QScrollBar
class QSessionManager
class QShortcut
class QShortcutEvent
class QShowEvent
class QSizeGrip
class QSizePolicy
class QSlider
class QSortFilterProxyModel
class QSound
class QSpacerItem
class QSpinBox
class QSplashScreen
class QSplitter
class QSplitterHandle
class QStackedLayout
class QStackedWidget
class QStandardItem
class QStandardItemModel
class QStatusBar
class QStatusTipEvent
class QStringListModel
class QStyle
class QStyleFactory
class QStyleHintReturn
class QStyleHintReturnMask
class QStyleHintReturnVariant
class QStyleOption
class QStyleOptionButton
class QStyleOptionComboBox
class QStyleOptionComplex
class QStyleOptionDockWidget
class QStyleOptionDockWidgetV2
class QStyleOptionFocusRect
class QStyleOptionFrame
class QStyleOptionFrameV2
class QStyleOptionGraphicsItem
class QStyleOptionGroupBox
class QStyleOptionHeader
class QStyleOptionMenuItem
class QStyleOptionProgressBar
class QStyleOptionProgressBarV2
class QStyleOptionRubberBand
class QStyleOptionSizeGrip
class QStyleOptionSlider
class QStyleOptionSpinBox
class QStyleOptionTab
class QStyleOptionTabBarBase
class QStyleOptionTabV2
class QStyleOptionTabWidgetFrame
class QStyleOptionTitleBar
class QStyleOptionToolBar
class QStyleOptionToolBox
class QStyleOptionToolBoxV2
class QStyleOptionToolButton
class QStyleOptionViewItem
class QStyleOptionViewItemV2
class QStyleOptionViewItemV3
class QStylePainter
class QSyntaxHighlighter
class QSystemTrayIcon
class QTabBar
class QTabletEvent
class QTableView
class QTableWidget
class QTableWidgetItem
class QTableWidgetSelectionRange
class QTabWidget
class QTextBlock
class QTextBlockFormat
class QTextBlockGroup
class QTextBlockUserData
class QTextBrowser
class QTextCharFormat
class QTextCursor
class QTextDocument
class QTextDocumentFragment
class QTextEdit
class QTextFormat
class QTextFragment
class QTextFrame
class QTextFrameFormat
class QTextImageFormat
class QTextInlineObject
class QTextItem
class QTextLayout
class QTextLength
class QTextLine
class QTextList
class QTextListFormat
class QTextObject
class QTextOption
class QTextTable
class QTextTableCell
class QTextTableFormat
class QTimeEdit
class QToolBar
class QToolBox
class QToolButton
class QToolTip
class QTransform
class QTreeView
class QTreeWidget
class QTreeWidgetItem
class QTreeWidgetItemIterator
class QUndoCommand
class QUndoGroup
class QUndoStack
class QUndoView
class QValidator
class QVBoxLayout
class QWhatsThis
class QWhatsThisClickedEvent
class QWheelEvent
class QWidget
class QWidgetAction
class QWidgetItem
class QWindowStateChangeEvent
class QWizard
class QWizardPage
class QWorkspace
class QX11EmbedContainer
class QX11EmbedWidget
class QX11Info

Module Functions

int qAlpha (unsigned long rgb)
int qBlue (unsigned long rgb)
qDrawPlainRect (QPainter p, int x, int y, int w, int h, QColor, int lineWidth = 1, QBrush fill = None)
qDrawPlainRect (QPainter p, QRect r, QColor, int lineWidth = 1, QBrush fill = None)
qDrawShadeLine (QPainter p, int x1, int y1, int x2, int y2, QPalette pal, bool sunken = True, int lineWidth = 1, int midLineWidth = 0)
qDrawShadeLine (QPainter p, QPoint p1, QPoint p2, QPalette pal, bool sunken = True, int lineWidth = 1, int midLineWidth = 0)
qDrawShadePanel (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, int lineWidth = 1, QBrush fill = None)
qDrawShadePanel (QPainter p, QRect r, QPalette pal, bool sunken = False, int lineWidth = 1, QBrush fill = None)
qDrawShadeRect (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, int lineWidth = 1, int midLineWidth = 0, QBrush fill = None)
qDrawShadeRect (QPainter p, QRect r, QPalette pal, bool sunken = False, int lineWidth = 1, int midLineWidth = 0, QBrush fill = None)
qDrawWinButton (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, QBrush fill = None)
qDrawWinButton (QPainter p, QRect r, QPalette pal, bool sunken = False, QBrush fill = None)
qDrawWinPanel (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, QBrush fill = None)
qDrawWinPanel (QPainter p, QRect r, QPalette pal, bool sunken = False, QBrush fill = None)
int qGray (int r, int g, int b)
int qGray (unsigned long rgb)
int qGreen (unsigned long rgb)
bool qIsGray (unsigned long rgb)
int qRed (unsigned long rgb)
unsigned long qRgb (int r, int g, int b)
unsigned long qRgba (int r, int g, int b, int a)
qSwap (QBitmap value1, QBitmap value2)
qSwap (QBrush value1, QBrush value2)
qSwap (QIcon value1, QIcon value2)
qSwap (QImage value1, QImage value2)
qSwap (QKeySequence value1, QKeySequence value2)
qSwap (QPen value1, QPen value2)
qSwap (QPicture value1, QPicture value2)
qSwap (QPixmap value1, QPixmap value2)
qt_set_sequence_auto_mnemonic (bool enable)
qt_x11_wait_for_window_manager (QWidget widget)

Module Members

QApplication qApp

Detailed Description

The QtGui module extends QtCore with GUI functionality.

To import the module use, for example, the following statement:

from PyQt4 import QtGui

Function Documentation

int qAlpha (unsigned long rgb)

Returns the alpha component of the ARGB quadruplet rgba.

int qBlue (unsigned long rgb)

Returns the blue component of the ARGB quadruplet rgb.

qDrawPlainRect (QPainter p, int x, int y, int w, int h, QColor, int lineWidth = 1, QBrush fill = None)

Draws the plain rectangle beginning at (x, y) with the given width and height, using the specified painter, lineColor and lineWidth. The rectangle's interior is filled with the fill brush unless fill is 0.

Warning: This function does not look at QWidget.style() or QApplication.style(). Use the drawing functions in QStyle to make widgets that follow the current GUI style.

Alternatively you can use a QFrame widget and apply the QFrame.setFrameStyle() function to display a plain rectangle:

 QFrame frame:
 frame.setFrameStyle(QFrame.Box | QFrame.Plain);

qDrawPlainRect (QPainter p, QRect r, QColor, int lineWidth = 1, QBrush fill = None)

qDrawShadeLine (QPainter p, int x1, int y1, int x2, int y2, QPalette pal, bool sunken = True, int lineWidth = 1, int midLineWidth = 0)

Draws a horizontal (y1 == y2) or vertical (x1 == x2) shaded line using the given painter. Note that nothing is drawn if y1 != y2 and x1 != x2 (i.e. the line is neither horizontal nor vertical).

The provided palette specifies the shading colors (light, dark and middle colors). The given lineWidth specifies the line width for each of the lines; it is not the total line width. The given midLineWidth specifies the width of a middle line drawn in the QPalette.mid() color.

The line appears sunken if sunken is true, otherwise raised.

Warning: This function does not look at QWidget.style() or QApplication.style(). Use the drawing functions in QStyle to make widgets that follow the current GUI style.

Alternatively you can use a QFrame widget and apply the QFrame.setFrameStyle() function to display a shaded line:

 QFrame frame:
 frame.setFrameStyle(QFrame.HLine | QFrame.Sunken);

See also qDrawShadeRect(), qDrawShadePanel(), and QStyle.

qDrawShadeLine (QPainter p, QPoint p1, QPoint p2, QPalette pal, bool sunken = True, int lineWidth = 1, int midLineWidth = 0)

qDrawShadePanel (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, int lineWidth = 1, QBrush fill = None)

Draws the shaded panel beginning at (x, y) with the given width and height using the provided painter and the given lineWidth.

The given palette specifies the shading colors (light, dark and middle colors). The panel's interior is filled with the fill brush unless fill is 0.

The panel appears sunken if sunken is true, otherwise raised.

Warning: This function does not look at QWidget.style() or QApplication.style(). Use the drawing functions in QStyle to make widgets that follow the current GUI style.

Alternatively you can use a QFrame widget and apply the QFrame.setFrameStyle() function to display a shaded panel:

 QFrame frame:
 frame.setFrameStyle( QFrame.Panel | QFrame.Sunken);

See also qDrawWinPanel(), qDrawShadeLine(), qDrawShadeRect(), and QStyle.

qDrawShadePanel (QPainter p, QRect r, QPalette pal, bool sunken = False, int lineWidth = 1, QBrush fill = None)

qDrawShadeRect (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, int lineWidth = 1, int midLineWidth = 0, QBrush fill = None)

Draws the shaded rectangle beginning at (x, y) with the given width and height using the provided painter.

The provide palette specifies the shading colors (light, dark and middle colors. The given lineWidth specifies the line width for each of the lines; it is not the total line width. The midLineWidth specifies the width of a middle line drawn in the QPalette.mid() color. The rectangle's interior is filled with the fill brush unless fill is 0.

The rectangle appears sunken if sunken is true, otherwise raised.

Warning: This function does not look at QWidget.style() or QApplication.style(). Use the drawing functions in QStyle to make widgets that follow the current GUI style.

Alternatively you can use a QFrame widget and apply the QFrame.setFrameStyle() function to display a shaded rectangle:

 QFrame frame:
 frame.setFrameStyle(QFrame.Box | QFrame.Raised);

See also qDrawShadeLine(), qDrawShadePanel(), qDrawPlainRect(), and QStyle.

qDrawShadeRect (QPainter p, QRect r, QPalette pal, bool sunken = False, int lineWidth = 1, int midLineWidth = 0, QBrush fill = None)

qDrawWinButton (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, QBrush fill = None)

Draws the Windows-style button specified by the given point (x, y}, width and height using the provided painter with a line width of 2 pixels. The button's interior is filled with the fill brush unless fill is 0.

The given palette specifies the shading colors (light, dark and middle colors).

The button appears sunken if sunken is true, otherwise raised.

Warning: This function does not look at QWidget.style() or QApplication.style()-> Use the drawing functions in QStyle to make widgets that follow the current GUI style.

qDrawWinButton (QPainter p, QRect r, QPalette pal, bool sunken = False, QBrush fill = None)

qDrawWinPanel (QPainter p, int x, int y, int w, int h, QPalette pal, bool sunken = False, QBrush fill = None)

Draws the Windows-style panel specified by the given point(x, y), width and height using the provided painter with a line width of 2 pixels. The button's interior is filled with the fill brush unless fill is 0.

The given palette specifies the shading colors. The panel appears sunken if sunken is true, otherwise raised.

Warning: This function does not look at QWidget.style() or QApplication.style(). Use the drawing functions in QStyle to make widgets that follow the current GUI style.

Alternatively you can use a QFrame widget and apply the QFrame.setFrameStyle() function to display a shaded panel:

 QFrame frame:
 frame.setFrameStyle(QFrame.WinPanel | QFrame.Raised);

See also qDrawShadePanel(), qDrawWinButton(), and QStyle.

qDrawWinPanel (QPainter p, QRect r, QPalette pal, bool sunken = False, QBrush fill = None)

int qGray (int r, int g, int b)

Returns a gray value (0 to 255) from the (r, g, b) triplet.

The gray value is calculated using the formula (r * 11 + g * 16 + b * 5)/32.

int qGray (unsigned long rgb)

This is an overloaded member function, provided for convenience.

Returns a gray value (0 to 255) from the given ARGB quadruplet rgb.

The gray value is calculated using the formula (R * 11 + G * 16 + B * 5)/32. Note that the alpha-channel is ignored.

int qGreen (unsigned long rgb)

Returns the green component of the ARGB quadruplet rgb.

bool qIsGray (unsigned long rgb)

qSwap (QBitmap value1, QBitmap value2)

qSwap (QBrush value1, QBrush value2)

qSwap (QIcon value1, QIcon value2)

qSwap (QImage value1, QImage value2)

qSwap (QKeySequence value1, QKeySequence value2)

qSwap (QPen value1, QPen value2)

qSwap (QPicture value1, QPicture value2)

qSwap (QPixmap value1, QPixmap value2)

qt_set_sequence_auto_mnemonic (bool enable)

qt_x11_wait_for_window_manager (QWidget widget)

Member Documentation

QApplication qApp

This member should be treated as a constant.

A global pointer referring to the unique application object. It is equivalent to the pointer returned by the QCoreApplication.instance() function except that, in GUI applications, it is a pointer to a QApplication instance.

Only one application object can be created.