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| QgsFieldExpressionWidget (QWidget *parent=nullptr) |
| QgsFieldExpressionWidget creates a widget with a combo box to display the fields and expression and a button to open the expression dialog. More...
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QString | asExpression () const |
| Returns the currently selected field or expression. More...
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QString | currentField (bool *isExpression=nullptr, bool *isValid=nullptr) const |
| currentField returns the currently selected field or expression if allowed More...
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QString | currentText () const |
| Return the current text that is set in the expression area. More...
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const QString | expressionDialogTitle () |
| return the title used for the expression dialog More...
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QgsFieldProxyModel::Filters | filters () const |
| currently used filter on list of fields More...
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bool | isExpression () const |
| If the content is not just a simple field this method will return true. More...
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bool | isValidExpression (QString *expressionError=nullptr) const |
| Return true if the current expression is valid. More...
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QgsVectorLayer * | layer () const |
| Returns the currently used layer. More...
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void | registerGetExpressionContextCallback (ExpressionContextCallback fnGetExpressionContext, const void *context) |
| Register callback function for retrieving the expression context for the expression. More...
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void | setExpressionDialogTitle (const QString &title) |
| define the title used in the expression dialog More...
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void | setFilters (const QgsFieldProxyModel::Filters &filters) |
| setFilters allows fitering according to the type of field More...
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void | setGeomCalculator (const QgsDistanceArea &da) |
| set the geometry calculator used in the expression dialog More...
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void | setLeftHandButtonStyle (bool isLeft) |
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| QWidget (QWidget *parent, QFlags< Qt::WindowType > f) |
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| QWidget (QWidget *parent, const char *name, QFlags< Qt::WindowType > f) |
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| ~QWidget () |
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bool | acceptDrops () const |
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QString | accessibleDescription () const |
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QString | accessibleName () const |
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QList< QAction * > | actions () const |
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void | activateWindow () |
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void | addAction (QAction *action) |
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void | addActions (QList< QAction * > actions) |
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void | adjustSize () |
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bool | autoFillBackground () const |
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Qt::BackgroundMode | backgroundMode () const |
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QPoint | backgroundOffset () const |
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BackgroundOrigin | backgroundOrigin () const |
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QPalette::ColorRole | backgroundRole () const |
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QSize | baseSize () const |
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QString | caption () const |
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QWidget * | childAt (int x, int y, bool includeThis) const |
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QWidget * | childAt (const QPoint &p, bool includeThis) const |
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QWidget * | childAt (int x, int y) const |
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QWidget * | childAt (const QPoint &p) const |
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QRect | childrenRect () const |
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QRegion | childrenRegion () const |
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void | clearFocus () |
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void | clearMask () |
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bool | close (bool alsoDelete) |
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bool | close () |
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QColorGroup | colorGroup () const |
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void | constPolish () const |
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QMargins | contentsMargins () const |
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QRect | contentsRect () const |
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QCursor | cursor () const |
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void | drawText (const QPoint &p, const QString &s) |
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void | drawText (int x, int y, const QString &s) |
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WId | effectiveWinId () const |
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void | ensurePolished () const |
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void | erase () |
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void | erase (const QRect &rect) |
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void | erase (const QRegion &rgn) |
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void | erase (int x, int y, int w, int h) |
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Qt::FocusPolicy | focusPolicy () const |
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QWidget * | focusProxy () const |
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QWidget * | focusWidget () const |
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const QFont & | font () const |
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QFontInfo | fontInfo () const |
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QFontMetrics | fontMetrics () const |
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QPalette::ColorRole | foregroundRole () const |
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QRect | frameGeometry () const |
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QSize | frameSize () const |
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const QRect & | geometry () const |
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void | getContentsMargins (int *left, int *top, int *right, int *bottom) const |
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virtual HDC | getDC () const |
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void | grabGesture (Qt::GestureType gesture, QFlags< Qt::GestureFlag > flags) |
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void | grabKeyboard () |
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void | grabMouse () |
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void | grabMouse (const QCursor &cursor) |
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int | grabShortcut (const QKeySequence &key, Qt::ShortcutContext context) |
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QGraphicsEffect * | graphicsEffect () const |
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QGraphicsProxyWidget * | graphicsProxyWidget () const |
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bool | hasEditFocus () const |
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bool | hasFocus () const |
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bool | hasMouse () const |
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bool | hasMouseTracking () const |
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int | height () const |
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virtual int | heightForWidth (int w) const |
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void | hide () |
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const QPixmap * | icon () const |
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void | iconify () |
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QString | iconText () const |
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QInputContext * | inputContext () |
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Qt::InputMethodHints | inputMethodHints () const |
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virtual QVariant | inputMethodQuery (Qt::InputMethodQuery query) const |
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void | insertAction (QAction *before, QAction *action) |
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void | insertActions (QAction *before, QList< QAction * > actions) |
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bool | isActiveWindow () const |
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bool | isAncestorOf (const QWidget *child) const |
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bool | isDesktop () const |
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bool | isDialog () const |
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bool | isEnabled () const |
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bool | isEnabledTo (QWidget *ancestor) const |
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bool | isEnabledToTLW () const |
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bool | isFullScreen () const |
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bool | isHidden () const |
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bool | isInputMethodEnabled () const |
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bool | isMaximized () const |
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bool | isMinimized () const |
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bool | isModal () const |
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bool | isShown () const |
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bool | isTopLevel () const |
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bool | isUpdatesEnabled () const |
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bool | isVisible () const |
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bool | isVisibleTo (QWidget *ancestor) const |
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bool | isVisibleToTLW () const |
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bool | isWindow () const |
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bool | isWindowModified () const |
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QLayout * | layout () const |
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Qt::LayoutDirection | layoutDirection () const |
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QLocale | locale () const |
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void | lower () |
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Qt::HANDLE | macCGHandle () const |
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Qt::HANDLE | macQDHandle () const |
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QPoint | mapFrom (QWidget *parent, const QPoint &pos) const |
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QPoint | mapFromGlobal (const QPoint &pos) const |
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QPoint | mapFromParent (const QPoint &pos) const |
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QPoint | mapTo (QWidget *parent, const QPoint &pos) const |
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QPoint | mapToGlobal (const QPoint &pos) const |
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QPoint | mapToParent (const QPoint &pos) const |
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QRegion | mask () const |
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int | maximumHeight () const |
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QSize | maximumSize () const |
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int | maximumWidth () const |
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int | minimumHeight () const |
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QSize | minimumSize () const |
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virtual QSize | minimumSizeHint () const |
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int | minimumWidth () const |
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void | move (int x, int y) |
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void | move (const QPoint &) |
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QWidget * | nativeParentWidget () const |
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QWidget * | nextInFocusChain () const |
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QRect | normalGeometry () const |
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void | overrideWindowFlags (QFlags< Qt::WindowType > flags) |
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bool | ownCursor () const |
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bool | ownFont () const |
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bool | ownPalette () const |
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virtual QPaintEngine * | paintEngine () const |
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const QPalette & | palette () const |
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QWidget * | parentWidget (bool sameWindow) const |
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QWidget * | parentWidget () const |
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QPlatformWindow * | platformWindow () const |
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QPlatformWindowFormat | platformWindowFormat () const |
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void | polish () |
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QPoint | pos () const |
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QWidget * | previousInFocusChain () const |
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void | raise () |
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void | recreate (QWidget *parent, QFlags< Qt::WindowType > f, const QPoint &p, bool showIt) |
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QRect | rect () const |
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virtual void | releaseDC (HDC hdc) const |
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void | releaseKeyboard () |
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void | releaseMouse () |
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void | releaseShortcut (int id) |
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void | removeAction (QAction *action) |
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void | render (QPaintDevice *target, const QPoint &targetOffset, const QRegion &sourceRegion, QFlags< QWidget::RenderFlag > renderFlags) |
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void | render (QPainter *painter, const QPoint &targetOffset, const QRegion &sourceRegion, QFlags< QWidget::RenderFlag > renderFlags) |
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void | repaint (int x, int y, int w, int h, bool b) |
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void | repaint (const QRegion &rgn, bool b) |
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void | repaint () |
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void | repaint (int x, int y, int w, int h) |
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void | repaint (const QRegion &rgn) |
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void | repaint (bool b) |
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void | repaint (const QRect &rect) |
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void | repaint (const QRect &r, bool b) |
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void | reparent (QWidget *parent, QFlags< Qt::WindowType > f, const QPoint &p, bool showIt) |
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void | reparent (QWidget *parent, const QPoint &p, bool showIt) |
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void | resize (int w, int h) |
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void | resize (const QSize &) |
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bool | restoreGeometry (const QByteArray &geometry) |
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QByteArray | saveGeometry () const |
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void | scroll (int dx, int dy) |
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void | scroll (int dx, int dy, const QRect &r) |
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void | setAcceptDrops (bool on) |
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void | setAccessibleDescription (const QString &description) |
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void | setAccessibleName (const QString &name) |
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void | setActiveWindow () |
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void | setAttribute (Qt::WidgetAttribute attribute, bool on) |
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void | setAutoFillBackground (bool enabled) |
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void | setBackgroundColor (const QColor &color) |
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void | setBackgroundMode (Qt::BackgroundMode widgetBackground, Qt::BackgroundMode paletteBackground) |
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void | setBackgroundOrigin (BackgroundOrigin background) |
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void | setBackgroundPixmap (const QPixmap &pixmap) |
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void | setBackgroundRole (QPalette::ColorRole role) |
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void | setBaseSize (const QSize &) |
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void | setBaseSize (int basew, int baseh) |
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void | setCaption (const QString &c) |
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void | setContentsMargins (int left, int top, int right, int bottom) |
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void | setContentsMargins (const QMargins &margins) |
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void | setCursor (const QCursor &) |
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void | setDisabled (bool disable) |
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void | setEditFocus (bool enable) |
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void | setEnabled (bool) |
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void | setEraseColor (const QColor &color) |
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void | setErasePixmap (const QPixmap &pixmap) |
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void | setFixedHeight (int h) |
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void | setFixedSize (const QSize &s) |
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void | setFixedSize (int w, int h) |
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void | setFixedWidth (int w) |
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void | setFocus (Qt::FocusReason reason) |
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void | setFocus () |
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void | setFocusPolicy (Qt::FocusPolicy policy) |
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void | setFocusProxy (QWidget *w) |
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void | setFont (const QFont &) |
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void | setFont (const QFont &f, bool b) |
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void | setForegroundRole (QPalette::ColorRole role) |
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void | setGeometry (int x, int y, int w, int h) |
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void | setGeometry (const QRect &) |
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void | setGraphicsEffect (QGraphicsEffect *effect) |
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void | setHidden (bool hidden) |
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void | setIcon (const QPixmap &i) |
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void | setIconText (const QString &it) |
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void | setInputContext (QInputContext *context) |
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void | setInputMethodEnabled (bool enabled) |
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void | setInputMethodHints (QFlags< Qt::InputMethodHint > hints) |
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void | setKeyCompression (bool b) |
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void | setLayout (QLayout *layout) |
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void | setLayoutDirection (Qt::LayoutDirection direction) |
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void | setLocale (const QLocale &locale) |
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void | setMask (const QBitmap &bitmap) |
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void | setMask (const QRegion ®ion) |
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void | setMaximumHeight (int maxh) |
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void | setMaximumSize (const QSize &) |
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void | setMaximumSize (int maxw, int maxh) |
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void | setMaximumWidth (int maxw) |
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void | setMinimumHeight (int minh) |
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void | setMinimumSize (int minw, int minh) |
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void | setMinimumSize (const QSize &) |
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void | setMinimumWidth (int minw) |
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void | setMouseTracking (bool enable) |
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void | setPalette (const QPalette &) |
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void | setPalette (const QPalette &p, bool b) |
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void | setPaletteBackgroundColor (const QColor &color) |
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void | setPaletteBackgroundPixmap (const QPixmap &pixmap) |
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void | setPaletteForegroundColor (const QColor &color) |
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void | setParent (QWidget *parent) |
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void | setParent (QWidget *parent, QFlags< Qt::WindowType > f) |
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void | setPlatformWindow (QPlatformWindow *window) |
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void | setPlatformWindowFormat (const QPlatformWindowFormat &format) |
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void | setShortcutAutoRepeat (int id, bool enable) |
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void | setShortcutEnabled (int id, bool enable) |
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void | setShown (bool shown) |
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void | setSizeIncrement (const QSize &) |
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void | setSizeIncrement (int w, int h) |
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void | setSizePolicy (QSizePolicy::Policy hor, QSizePolicy::Policy ver, bool hfw) |
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void | setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical) |
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void | setSizePolicy (QSizePolicy) |
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void | setStatusTip (const QString &) |
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void | setStyle (QStyle *style) |
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QStyle * | setStyle (const QString &style) |
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void | setStyleSheet (const QString &styleSheet) |
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void | setToolTip (const QString &) |
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void | setUpdatesEnabled (bool enable) |
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void | setupUi (QWidget *widget) |
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virtual void | setVisible (bool visible) |
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void | setWhatsThis (const QString &) |
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void | setWindowFilePath (const QString &filePath) |
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void | setWindowFlags (QFlags< Qt::WindowType > type) |
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void | setWindowIcon (const QIcon &icon) |
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void | setWindowIconText (const QString &) |
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void | setWindowModality (Qt::WindowModality windowModality) |
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void | setWindowModified (bool) |
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void | setWindowOpacity (qreal level) |
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void | setWindowRole (const QString &role) |
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void | setWindowState (QFlags< Qt::WindowState > windowState) |
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void | setWindowSurface (QWindowSurface *surface) |
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void | setWindowTitle (const QString &) |
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void | show () |
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void | showFullScreen () |
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void | showMaximized () |
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void | showMinimized () |
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void | showNormal () |
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QSize | size () const |
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virtual QSize | sizeHint () const |
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QSize | sizeIncrement () const |
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QSizePolicy | sizePolicy () const |
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void | stackUnder (QWidget *w) |
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QString | statusTip () const |
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QStyle * | style () const |
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QString | styleSheet () const |
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bool | testAttribute (Qt::WidgetAttribute attribute) const |
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QString | toolTip () const |
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QWidget * | topLevelWidget () const |
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bool | underMouse () const |
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void | ungrabGesture (Qt::GestureType gesture) |
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void | unsetCursor () |
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void | unsetFont () |
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void | unsetLayoutDirection () |
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void | unsetLocale () |
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void | unsetPalette () |
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void | update (const QRect &rect) |
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void | update (const QRegion &rgn) |
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void | update (int x, int y, int w, int h) |
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void | update () |
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void | updateGeometry () |
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bool | updatesEnabled () const |
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QRect | visibleRect () const |
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QRegion | visibleRegion () const |
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QString | whatsThis () const |
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int | width () const |
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QWidget * | window () const |
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QString | windowFilePath () const |
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Qt::WindowFlags | windowFlags () const |
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QIcon | windowIcon () const |
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QString | windowIconText () const |
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Qt::WindowModality | windowModality () const |
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qreal | windowOpacity () const |
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QString | windowRole () const |
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Qt::WindowStates | windowState () const |
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QWindowSurface * | windowSurface () const |
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QString | windowTitle () const |
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Qt::WindowType | windowType () const |
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WId | winId () const |
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int | x () const |
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const QX11Info & | x11Info () const |
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Qt::HANDLE | x11PictureHandle () const |
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int | y () const |
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| QObject (QObject *parent) |
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| QObject (QObject *parent, const char *name) |
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virtual | ~QObject () |
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bool | blockSignals (bool block) |
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QObject * | child (const char *objName, const char *inheritsClass, bool recursiveSearch) const |
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const QObjectList & | children () const |
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const char * | className () const |
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bool | connect (const QObject *sender, const char *signal, const char *method, Qt::ConnectionType type) const |
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void | deleteLater () |
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void | destroyed (QObject *obj) |
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bool | disconnect (const QObject *receiver, const char *method) |
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bool | disconnect (const char *signal, const QObject *receiver, const char *method) |
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void | dumpObjectInfo () |
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void | dumpObjectTree () |
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QList< QByteArray > | dynamicPropertyNames () const |
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virtual bool | eventFilter (QObject *watched, QEvent *event) |
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T | findChild (const QString &name) const |
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QList< T > | findChildren (const QRegExp ®Exp) const |
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QList< T > | findChildren (const QString &name) const |
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bool | inherits (const char *className) const |
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void | insertChild (QObject *object) |
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void | installEventFilter (QObject *filterObj) |
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bool | isA (const char *className) const |
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bool | isWidgetType () const |
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void | killTimer (int id) |
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virtual const QMetaObject * | metaObject () const |
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void | moveToThread (QThread *targetThread) |
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const char * | name () const |
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const char * | name (const char *defaultName) const |
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QString | objectName () const |
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QObject * | parent () const |
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QVariant | property (const char *name) const |
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void | removeChild (QObject *object) |
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void | removeEventFilter (QObject *obj) |
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void | setName (const char *name) |
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void | setObjectName (const QString &name) |
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void | setParent (QObject *parent) |
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bool | setProperty (const char *name, const QVariant &value) |
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bool | signalsBlocked () const |
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int | startTimer (int interval) |
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QThread * | thread () const |
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virtual | ~QPaintDevice () |
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int | colorCount () const |
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int | depth () const |
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int | height () const |
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int | heightMM () const |
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int | logicalDpiX () const |
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int | logicalDpiY () const |
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int | numColors () const |
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virtual QPaintEngine * | paintEngine () const =0 |
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bool | paintingActive () const |
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int | physicalDpiX () const |
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int | physicalDpiY () const |
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int | width () const |
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int | widthMM () const |
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int | x11Cells () const |
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Qt::HANDLE | x11Colormap () const |
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bool | x11DefaultColormap () const |
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bool | x11DefaultVisual () const |
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int | x11Depth () const |
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Display * | x11Display () const |
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int | x11Screen () const |
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void * | x11Visual () const |
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The QgsFieldExpressionWidget class reates a widget to choose fields and edit expressions It contains a combo boxto display the fields and expression and a button to open the expression dialog.
The combo box is editable, allowing expressions to be edited inline. The validity of the expression is checked live on key press, invalid expressions are displayed in red. The expression will be added to the model (and the fieldChanged signals emitted) only when editing in the line edit is finished (focus lost, enter key pressed).
Definition at line 40 of file qgsfieldexpressionwidget.h.