eventBox

Name

eventBox -- A widget which catches events for its child widget.

Synopsis

eventBox [-option value...]

Screenshot

Options

-background

type: color

Background color of the widget.

-child

type: widget-ID

Widget ID of the child.

-dragTargets

type: list of strings

List of source targets (e.g. text/plain or application/x-color) which are supported.

-dropTargets

type: list of strings

List of destination targets (e.g. text/plain or application/x-color) which are supported.

-hasFocus

type: 1

This sets the focus to the widget. To unset the focus it must be set to another widet.

-heightGroup

type: string (default: "")

heightGroup can be an arbitrary string. All widgets with the same heightGroup request the same height. If packed with the fill flag set, they will have nevertheless different heights.

-name

type: string

Name of the widget, can be used to set options in an rc file.

-onButtonPress

type: string (default: "")

Tcl command which is executed if a mouse button is press inside the widget. Before evaluation the following percent strings are substituated: TABLE %% | % %w | widget name %t | type of event: one of buttonPress, button2Press or button3Press %x | x coordinate %y | y coordinate %b | button number %s | state of the buttons and modifiers (bitmask) TABLE

-onButtonRelease

type: string (default: "")

Tcl command which is executed if a mouse button is released inside the widget. Before evaluation the following percent strings are substituated: TABLE %% | % %w | widget name %t | type of event: always buttonRelease %x | x coordinate %y | y coordinate %b | button number %s | state of the buttons and modifiers (bitmask) TABLE

-onDestroy

type: string (default: "")

Tcl command which is executed if the widget is destroyed. Before evaluation the following percent strings are substituated: TABLE %% | % %w | widget name. TABLE

-onDragData

type: string (default: "")

Tcl command which is executed if data is draged from this the widget to another. This command must return the data to be draged. Before evaluation the following percent strings are substituated: TABLE %% | % %w | widget name %t | time %T | type of data TABLE

-onDropData

type: string (default: "")

Tcl command which is executed if data is dropped on the widget. Before evaluation the following percent strings are substituated: TABLE %% | % %w | widget name %d | data %l | length of data %t | time %T | type of data %x | x coordinate %y | y coordinate TABLE

-onMotion

type: string (default: "")

Tcl command which is executed if the mouse is moved inside the widget. Before evaluation the following percent strings are substituated: TABLE %% | % %w | widget name %x | x coordinate %y | y coordinate %s | state of the buttons and modifiers (bitmask) TABLE

-onPopupMenu

type: string (default: "")

Tcl command which is executed if the "popup-menu" signal is recieved, which is normally the case if the user presses Shift-F10. Before evaluation the following percent strings are substituated: %w by widget name.

-onShowHelp

type: string (default: "")

Tcl command which is executed in the global scope if the "show-help" signal is recieved, which is normally the case if the user presses F1 or Ctrl-F1. Before evaluation the following percent strings are substituated TABLE %% | % %w | widget name %h | help type: either "whatsThis" or "tooltip" TABLE

-sensitive

type: boolean (default: 1)

Whether or not the item is sensitve to user input.

-sizeGroup

type: string (default: "")

sizeGroup can be an arbitrary string. All widgets with the same sizeGroup request the same size. If packed with the fill flag set, they will have nevertheless different sizes.

-title

type: string (default: "")

Title of the window.

-tooltip

type: string

Message that appear next to this widget when the mouse pointer is held over it for a short amount of time.

-visible

type: boolean (default: 1)

Whether or not the item is visible.

-widthGroup

type: string (default: "")

widthGroup can be an arbitrary string. All widgets with the same widthGroup request the same width. If packed with the fill flag set, they will have nevertheless different widths.

Description

Some widgets like label do not have an own window. This means that they cannot catch events and cannot set their background color. If put inside an eventBox the latter can handle all these tasks.

Commands

id delete

Deletes the widget and the associated tcl command.

id configure [-option value...]

Configures the widget. Option may have any of the values accepted on creation of the widget.

id cget option

Returns the value for one option. The option may have any of the values accepted by configure.

Example


set label [gnocl::label -text "Some text"]
set box [gnocl::eventBox -child $label -tooltip "Helpful hint" -background lightblue]
gnocl::window -title "EventBox" -child $box 

results in

See also

GtkEventBox