- Make NULL value string representation configurable.

- Fix feature updates in feature form from attribute table.

- Add support for NULL values in value maps (comboboxes).

- Support feature form expression fields: line edits on the form which

name prefix "expr_" are evaluated. Their value is interpreted as field

calculator string and replaced with the calculated value.

<LI>Make NULL value string representation configurable.

<LI>Fix feature updates in feature form from attribute table.

<LI>Add support for NULL values in value maps (comboboxes).

<LI>Support feature form expression fields: line edits on the form which

name prefix "expr_" are evaluated. Their value is interpreted as field

calculator string and replaced with the calculated value.

- Make NULL value string representation configurable.

- Fix feature updates in feature form from attribute table.

- Add support for NULL values in value maps (comboboxes).

- Support feature form expression fields: line edits on the form which

name prefix "expr_" are evaluated. Their value is interpreted as field

calculator string and replaced with the calculated value.

{

%Docstring

A cross platform button subclass for selecting colors. Will open a color chooser dialog when clicked.

and pasting colors, picking colors from the screen, and selecting colors from color swatch grids.

.. versionadded:: 2.5

%End

Construct a new color ramp button.

Use ``parent`` to attach a parent QWidget to the dialog.

Use ``cdt`` string to define the title to show in the color ramp dialog

the button will use the global color scheme registry instead

%End

void setShowMenu( const bool showMenu );

%Docstring

show the menu.

.. seealso:: showMenu

%End

bool showMenu() const;

%Docstring

.. seealso:: setShowMenu

:rtype: bool

%End

void setDefaultColor( const QColor &color );

%Docstring

"default color" option.

\param color default color for the button. Set to an invalid QColor to disable the default color

option.

QColor defaultColor() const;

%Docstring

"default color" option.

:return: default color for the button. Returns an invalid QColor if the default color

option is disabled.

void setShowNoColor( const bool showNoColorOption );

%Docstring

the "no color" option sets the color button's color to a totally transparent color.

\param showNoColorOption set to true to show the no color option. This is disabled by default.

.. seealso:: showNoColor

bool showNoColor() const;

%Docstring

the "no color" option sets the color button's color to a totally transparent color.

:return: true if the no color option is shown.

.. seealso:: setShowNoColor

void setNoColorString( const QString &noColorString );

%Docstring

\param noColorString string to use for the "no color" menu option

.. seealso:: noColorString

.. seealso:: setShowNoColor

void setShowNull( bool showNull );

%Docstring

\param showNull set to true to show a null option

.. versionadded:: 2.16

.. seealso:: showNull()

bool showNull() const;

%Docstring

.. versionadded:: 2.16

.. seealso:: setShowNull()

.. seealso:: isNull()

QString noColorString() const;

%Docstring

:return: string used for the "no color" menu option

.. seealso:: setNoColorString

.. seealso:: showNoColor

void setContext( const QString &context );

%Docstring

Sets the context string for the color button. The context string is passed to all color swatch

based on the context.

\param context context string for the color button's color swatch grids

.. seealso:: context

QString context() const;

%Docstring

Returns the context string for the color button. The context string is passed to all color swatch

based on the context.

:return: context string for the color button's color swatch grids

.. seealso:: setContext

void setColorSchemeRegistry( QgsColorSchemeRegistry *registry );

%Docstring

Sets the color scheme registry for the button, which controls the color swatch grids

\param registry color scheme registry for the button. Set to 0 to hide all color

.. seealso:: colorSchemeRegistry

%End

QgsColorSchemeRegistry *colorSchemeRegistry();

%Docstring

Returns the color scheme registry for the button, which controls the color swatch grids

:return: color scheme registry for the button. If returned value is 0 then all color

.. seealso:: setColorSchemeRegistry

:rtype: QgsColorSchemeRegistry

%End

{

%Docstring

A cross platform button subclass for selecting color ramps. Will open color ramp dialogs when clicked.

saved color ramps, as well as option to invert the current color ramp and create new ramps.

.. versionadded:: 3.0

%End

void setShowMenu( const bool showMenu );

%Docstring

show the menu.

.. seealso:: showMenu

%End

bool showMenu() const;

%Docstring

.. seealso:: setShowMenu

:rtype: bool

%End

void setDefaultColorRamp( QgsColorRamp *colorramp );

%Docstring

"default color ramp" option.

\param colorramp default color ramp for the button. Set to a null pointer to disable the default color

ramp option. The ramp will be cloned and ownership is not transferred.

QgsColorRamp *defaultColorRamp() const /Factory/;

%Docstring

"default color ramp" option.

:return: default color ramp for the button. Returns a null pointer if the default color ramp

option is disabled.

void setShowRandomColorRamp( bool showRandom );

%Docstring

\param showRandom set to true to show a random colors option

.. seealso:: showRandom()

%End

bool showRandomColorRamp() const;

%Docstring

.. seealso:: setShowRandom()

:rtype: bool

%End

void setShowNull( bool showNull );

%Docstring

\param showNull set to true to show a null option

.. seealso:: showNull()

.. seealso:: isNull()

%End

bool showNull() const;

%Docstring

.. seealso:: setShowNull()

.. seealso:: isNull()

:rtype: bool

void setContext( const QString &context );

%Docstring

Sets the context string for the color ramp button. The context string is passed to all color ramp

based on the context.

\param context context string for the color dialog button's color ramp preview icons

.. seealso:: context

QString context() const;

%Docstring

Returns the context string for the color ramp button. The context string is passed to all color ramp

based on the context.

:return: context context string for the color dialog button's color ramp preview icons

.. seealso:: setContext

This widget is designed for use in contexts where no layer fields are available for

use in an expression. In contexts where the expression is directly associated with

a layer and fields can be used, then QgsFieldExpressionWidget is a more appropriate

QgsExpressionLineEdit also supports a multiline editor mode which is useful where

more space is available for the widget, but where QgsExpressionBuilderWidget

<h3>Add SpatiaLite Tables</h3>

To define a new connection, click on <label>New</label> button and use the file browser to point to your SpatiaLite database, which is a file with a <i>.sqlite</i> extension.<p>

dreasm:dreams

driectly:directly

drnik:drink

droped:dropped:*

droppped:dropped

druming:drumming

enum ActionWidgetStyle

{

ButtonList, //!< A list of buttons

};

QgsAttributeTableConfig();

enum SchemeFlag

{

ShowInColorDialog = 0x01, //!< Show scheme in color picker dialog

ShowInAllContexts = ShowInColorDialog | ShowInColorButtonMenu //!< Show scheme in all contexts

};

Q_DECLARE_FLAGS( SchemeFlags, SchemeFlag )

setMinimumSize( QSize( 24, 16 ) );

connect( this, &QAbstractButton::clicked, this, &QgsColorButton::buttonClicked );

mMenu = new QMenu( this );

connect( mMenu, &QMenu::aboutToShow, this, &QgsColorButton::prepareMenu );

setMenu( mMenu );

{

if ( !mIconSize.isValid() )

{

QStyleOptionToolButton opt;

initStyleOption( &opt );

QRect buttonSize = QApplication::style()->subControlRect( QStyle::CC_ToolButton, &opt, QStyle::SC_ToolButton,