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KUrlLabel Class Reference

from PyKDE4.kdeui import *

Inherits: QLabel → QFrame → QWidget → QObject

Detailed Description

A drop-in replacement for QLabel that displays hyperlinks.

KUrlLabel is a drop-in replacement for QLabel that handles text in a fashion similar to how an HTML widget handles hyperlinks. The text can be underlined (or not) and set to different colors. It can also "glow" (cycle colors) when the mouse passes over it.

KUrlLabel also provides signals for several events, including the mouse leaving and entering the text area and all forms of mouse clicking.

By default KUrlLabel accepts focus. When focused, standard focus rectangle is displayed as in HTML widget. Pressing Enter key accepts the focused label.

A typical usage would be something like so:

 KUrlLabel *address = new KUrlLabel(this);
 address->setText("My homepage");
 address->setUrl("http://www.home.com/~me");
 connect(address, SIGNAL(leftClickedUrl(const QString&)),
                  SLOT(processMyUrl(const QString&)));

In this example, the text "My homepage" would be displayed as blue, underlined text. When the mouse passed over it, it would "glow" red. When the user clicks on the text, the signal leftClickedUrl() would be emitted with "http://www.home.com/~me" as its argument.

"KDE URL Label"

Author:
Kurt Granroth <granroth@kde.org> (Interface)
Author:
Peter Putzer <putzer@kde.org> (Rewrite)


Signals

 enteredUrl (QString url)
 enteredUrl ()
 leftClickedUrl (QString url)
 leftClickedUrl ()
 leftUrl (QString url)
 leftUrl ()
 middleClickedUrl (QString url)
 middleClickedUrl ()
 rightClickedUrl (QString url)
 rightClickedUrl ()

Methods

 __init__ (self, QWidget parent=0)
 __init__ (self, QString url, QString text=QString(), QWidget parent=0)
QPixmap alternatePixmap (self)
 enterEvent (self, QEvent a0)
bool event (self, QEvent a0)
bool isFloatEnabled (self)
bool isGlowEnabled (self)
 leaveEvent (self, QEvent a0)
 mouseReleaseEvent (self, QMouseEvent a0)
 setAlternatePixmap (self, QPixmap pixmap)
 setFloatEnabled (self, bool do_float=1)
 setFont (self, QFont font)
 setGlowEnabled (self, bool glow=1)
 setHighlightedColor (self, QColor highcolor)
 setHighlightedColor (self, QString highcolor)
 setSelectedColor (self, QColor color)
 setSelectedColor (self, QString color)
 setTipText (self, QString tip)
 setUnderline (self, bool on=1)
 setUrl (self, QString url)
 setUseCursor (self, bool on, QCursor cursor=0)
 setUseTips (self, bool on=1)
QString tipText (self)
QString url (self)
bool useCursor (self)
bool useTips (self)

Signal Documentation

enteredUrl ( QString  url
)

Emitted when the mouse has passed over the label.

Signal syntax:
QObject.connect(source, SIGNAL("enteredUrl(const QString&)"), target_slot)
enteredUrl (   )

Emitted when the mouse has passed over the label.

Signal syntax:
QObject.connect(source, SIGNAL("enteredUrl()"), target_slot)
leftClickedUrl ( QString  url
)

Emitted when the user clicked the left mouse button on this label.

Signal syntax:
QObject.connect(source, SIGNAL("leftClickedUrl(const QString&)"), target_slot)
leftClickedUrl (   )

Emitted when the user clicked the left mouse button on this label.

Signal syntax:
QObject.connect(source, SIGNAL("leftClickedUrl()"), target_slot)
leftUrl ( QString  url
)

Emitted when the mouse is no longer over the label.

Signal syntax:
QObject.connect(source, SIGNAL("leftUrl(const QString&)"), target_slot)
leftUrl (   )

Emitted when the mouse is no longer over the label.

Signal syntax:
QObject.connect(source, SIGNAL("leftUrl()"), target_slot)
middleClickedUrl ( QString  url
)

Emitted when the user clicked the left mouse button on this label.

Signal syntax:
QObject.connect(source, SIGNAL("middleClickedUrl(const QString&)"), target_slot)
middleClickedUrl (   )

Emitted when the user clicked the left mouse button on this label.

Signal syntax:
QObject.connect(source, SIGNAL("middleClickedUrl()"), target_slot)
rightClickedUrl ( QString  url
)

Emitted when the user clicked the right mouse button on this label.

Signal syntax:
QObject.connect(source, SIGNAL("rightClickedUrl(const QString&)"), target_slot)
rightClickedUrl (   )

Emitted when the user clicked the right mouse button on this label.

Signal syntax:
QObject.connect(source, SIGNAL("rightClickedUrl()"), target_slot)

Method Documentation

__init__ (  self,
QWidget  parent=0
)

Default constructor.

Use setUrl() and setText() or QListView.setPixmap() to set the resp. properties.

__init__ (  self,
QString  url,
QString  text=QString(),
QWidget  parent=0
)

Convenience constructor.

Parameters:
url  is the URL emitted when the label is clicked.
text  is the displayed string. If it's equal to QString() the url will be used instead.
parent  Passed to lower level constructor

parent and name are passed to QLabel, which in turn passes them further down

QPixmap alternatePixmap (   self )

Returns:
the alternate pixmap (may be 0L if none was set).

enterEvent (  self,
QEvent  a0
)

Overridden for internal reasons; the API remains unaffected.

bool event (  self,
QEvent  a0
)

Catch parent palette changes

bool isFloatEnabled (   self )

This feature is very similar to the "glow" feature in that the color of the label switches to the selected color when the cursor passes over it. In addition, underlining is turned on for as long as the mouse is overhead. Note that if "glow" and underlining are both already turned on, this feature will have no visible effect.

bool isGlowEnabled (   self )

When this is on, the text will switch to the selected color whenever the mouse passes over it.

leaveEvent (  self,
QEvent  a0
)

Overridden for internal reasons; the API remains unaffected.

mouseReleaseEvent (  self,
QMouseEvent  a0
)

Overridden for internal reasons; the API remains unaffected.

setAlternatePixmap (  self,
QPixmap  pixmap
)

Sets the "alt" pixmap.

This pixmap will be displayed when the cursor passes over the label. The effect is similar to the trick done with 'onMouseOver' in javascript.

See also:
alternatePixmap()

setFloatEnabled (  self,
bool  do_float=1
)

Turns on or off the "float" feature.

This feature is very similar to the "glow" feature in that the color of the label switches to the selected color when the cursor passes over it. In addition, underlining is turned on for as long as the mouse is overhead. Note that if "glow" and underlining are both already turned on, this feature will have no visible effect. By default, it is false.

setFont (  self,
QFont  font
)

Overridden for internal reasons; the API remains unaffected.

setGlowEnabled (  self,
bool  glow=1
)

Turns on or off the "glow" feature.

When this is on, the text will switch to the selected color whenever the mouse passes over it. By default, it is true.

setHighlightedColor (  self,
QColor  highcolor
)

This is an overloaded version for convenience.

See also:
setHighlightedColor()

setHighlightedColor (  self,
QString  highcolor
)

This is an overloaded version for convenience.

See also:
setHighlightedColor()

setSelectedColor (  self,
QColor  color
)

This is an overloaded version for convenience.

See also:
setSelectedColor()

setSelectedColor (  self,
QString  color
)

This is an overloaded version for convenience.

See also:
setSelectedColor()

setTipText (  self,
QString  tip
)

Specifies what text to display when tooltips are turned on.

If this is not used, the tip will default to the URL.

See also:
setUseTips()

setUnderline (  self,
bool  on=1
)

Turns on or off the underlining.

When this is on, the text will be underlined. By default, it is true.

setUrl (  self,
QString  url
)

Sets the URL for this label to url.

See also:
url

setUseCursor (  self,
bool  on,
QCursor  cursor=0
)

Turns the custom cursor feature on or off.

When this is on, the cursor will change to a custom cursor (default is a "pointing hand") whenever the cursor passes over the label. By default, it is on.

Parameters:
on  whether a custom cursor should be displayed.
cursor  is the custom cursor. 0L indicates the default "hand cursor".

setUseTips (  self,
bool  on=1
)

Turns on or off the tool tip feature.

When this is on, the URL will be displayed as a tooltip whenever the mouse passes passes over it. By default, it is false.

QString tipText (   self )

Returns the current tooltip text.

QString url (   self )

Returns the URL.

bool useCursor (   self )

Returns:
true if the cursor will change while over the URL.

See also:
setUseCursor ()

bool useTips (   self )

Returns:
true if a tooltip will be displayed.

See also:
setTipText()

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