#include <kmessagewidget.h>

Inheritance diagram for KMessageWidget:

Public Types
enum	MessageType { Positive, Information, Warning, Error }
Public Slots
void	animatedHide ()
void	animatedShow ()
void	setCloseButtonVisible (bool visible)
void	setMessageType (KMessageWidget::MessageType type)
void	setText (const QString &text)
void	setWordWrap (bool wordWrap)
Public Member Functions
	KMessageWidget (QWidget *parent=0)
	KMessageWidget (const QString &text, QWidget *parent=0)
	~KMessageWidget ()
void	addAction (QAction *action)
int	heightForWidth (int width) const
bool	isCloseButtonVisible () const
MessageType	messageType () const
QSize	minimumSizeHint () const
void	removeAction (QAction *action)
QSize	sizeHint () const
QString	text () const
bool	wordWrap () const
Protected Member Functions
bool	event (QEvent *event)
void	paintEvent (QPaintEvent *event)
void	resizeEvent (QResizeEvent *event)
void	showEvent (QShowEvent *event)
Properties
bool	closeButtonVisible
MessageType	messageType
QString	text
bool	wordWrap

Detailed Description

A widget to provide feedback or propose opportunistic interactions.

KMessageWidget can be used to provide inline positive or negative feedback, or to implement opportunistic interactions.

As a feedback widget, KMessageWidget provides a less intrusive alternative to "OK Only" message boxes. If you do not need the modalness of KMessageBox, consider using KMessageWidget instead.

Negative feedback

The KMessageWidget can be used as a secondary indicator of failure: the first indicator is usually the fact the action the user expected to happen did not happen.

Example: User fills a form, clicks "Submit".

Expected feedback: form closes
First indicator of failure: form stays there
Second indicator of failure: a KMessageWidget appears on top of the form, explaining the error condition

When used to provide negative feedback, KMessageWidget should be placed close to its context. In the case of a form, it should appear on top of the form entries.

KMessageWidget should get inserted in the existing layout. Space should not be reserved for it, otherwise it becomes "dead space", ignored by the user. KMessageWidget should also not appear as an overlay to prevent blocking access to elements the user needs to interact with to fix the failure.

Positive feedback

KMessageWidget can be used for positive feedback but it shouldn't be overused. It is often enough to provide feedback by simply showing the results of an action.

Examples of acceptable uses:

Confirm success of "critical" transactions
Indicate completion of background tasks

Example of inadapted uses:

Indicate successful saving of a file
Indicate a file has been successfully removed

Opportunistic interaction

Opportunistic interaction is the situation where the application suggests to the user an action he could be interested in perform, either based on an action the user just triggered or an event which the application noticed.

Example of acceptable uses:

A browser can propose remembering a recently entered password
A music collection can propose ripping a CD which just got inserted
A chat application may notify the user a "special friend" just connected

Author:: Aurélien Gâteau <agateau@kde.org>

Since:: 4.7

Definition at line 92 of file kmessagewidget.h.

Member Enumeration Documentation

enum KMessageWidget::MessageType

Enumerator:

Positive
Information
Warning
Error

Definition at line 102 of file kmessagewidget.h.

Constructor & Destructor Documentation

KMessageWidget::KMessageWidget ( QWidget * parent = 0 ) [explicit]

Constructs a KMessageWidget with the specified parent.

Definition at line 205 of file kmessagewidget.cpp.

KMessageWidget::KMessageWidget	(	const QString &	text,
		QWidget *	parent = `0`
	)		`[explicit]`

Definition at line 212 of file kmessagewidget.cpp.

KMessageWidget::~KMessageWidget ( )

Definition at line 220 of file kmessagewidget.cpp.

Member Function Documentation

void KMessageWidget::addAction ( QAction * action )

Definition at line 387 of file kmessagewidget.cpp.

void KMessageWidget::animatedHide ( ) [slot]

Hide the widget using an animation, unless KGlobalSettings::graphicsEffectLevel() does not allow simple effects.

Definition at line 423 of file kmessagewidget.cpp.

void KMessageWidget::animatedShow ( ) [slot]

Show the widget using an animation, unless KGlobalSettings::graphicsEffectLevel() does not allow simple effects.

Definition at line 399 of file kmessagewidget.cpp.

bool KMessageWidget::event ( QEvent * event ) [protected]

Definition at line 315 of file kmessagewidget.cpp.

int KMessageWidget::heightForWidth ( int width ) const

Definition at line 332 of file kmessagewidget.cpp.

bool KMessageWidget::isCloseButtonVisible ( ) const

Definition at line 376 of file kmessagewidget.cpp.

MessageType KMessageWidget::messageType ( ) const

QSize KMessageWidget::minimumSizeHint ( ) const

Definition at line 309 of file kmessagewidget.cpp.

void KMessageWidget::paintEvent ( QPaintEvent * event ) [protected]

Definition at line 338 of file kmessagewidget.cpp.

void KMessageWidget::removeAction ( QAction * action )

Definition at line 393 of file kmessagewidget.cpp.

void KMessageWidget::resizeEvent ( QResizeEvent * event ) [protected]

Definition at line 323 of file kmessagewidget.cpp.

void KMessageWidget::setCloseButtonVisible ( bool visible ) [slot]

Definition at line 381 of file kmessagewidget.cpp.

void KMessageWidget::setMessageType ( KMessageWidget::MessageType type ) [slot]

Definition at line 248 of file kmessagewidget.cpp.

void KMessageWidget::setText ( const QString & text ) [slot]

Definition at line 230 of file kmessagewidget.cpp.

void KMessageWidget::setWordWrap ( bool wordWrap ) [slot]

Definition at line 360 of file kmessagewidget.cpp.

void KMessageWidget::showEvent ( QShowEvent * event ) [protected]

Definition at line 348 of file kmessagewidget.cpp.

QSize KMessageWidget::sizeHint ( void ) const

Definition at line 303 of file kmessagewidget.cpp.

QString KMessageWidget::text ( ) const

bool KMessageWidget::wordWrap ( ) const

Property Documentation

bool KMessageWidget::closeButtonVisible [read, write]

Definition at line 99 of file kmessagewidget.h.

KMessageWidget::MessageType KMessageWidget::messageType [read, write]

Definition at line 100 of file kmessagewidget.h.

QString KMessageWidget::text [read, write]

Definition at line 97 of file kmessagewidget.h.

bool KMessageWidget::wordWrap [read, write]

Definition at line 98 of file kmessagewidget.h.

The documentation for this class was generated from the following files:

KDEUI

Public Types

Public Slots

Public Member Functions

Protected Member Functions