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A label class that supports displaying an active hyperlink.
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.
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&)));
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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.
| KURLLabel (QWidget* parent = 0L, const char* name = 0L)
| KURLLabel |
Default constructor.
Use setURL() and setText() or QListView::setPixmap() to set the resp. properties.
| KURLLabel (const QString& url, const QString& text = QString::null,
QWidget* parent = 0L, const char* name = 0L)
| KURLLabel |
Convenience constructor.
parent and name are passed to QLabel.
Parameters:
| url | is the URL emitted when the label is clicked. |
| text | is the displayed string. If it's equal to QString::null
the url will be used instead.
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| ~KURLLabel ()
| ~KURLLabel |
[virtual]
Destructor.
| const QString& url ()
| url |
[const]
Retreive the URL.
Returns: the URL.
| const QString& tipText ()
| tipText |
[const]
Retreive the tooltip text.
Returns: the current tooltip text.
| bool useTips ()
| useTips |
[const]
Returns: true if a tooltip will be displayed.
See also: setTipText()
| bool useCursor ()
| useCursor |
[const]
Returns: true if the cursor will change while over the URL.
See also: setUseCursor, ()
| bool isGlowEnabled ()
| isGlowEnabled |
[const]
When this is on, the text will switch to the selected color whenever the mouse passes over it.
| bool isFloatEnabled ()
| isFloatEnabled |
[const]
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.
| const QPixmap* altPixmap ()
| altPixmap |
[const]
Returns: the alternate pixmap (may be 0L if none was set).
| void setUnderline (bool on = true)
| setUnderline |
[slot]
Turn on or off the underlining.
When this is on, the
text will be underlined. By default, it is true.
| void setURL (const QString& url)
| setURL |
[slot]
Sets the URL for this label to url.
See also: url
| void setFont (const QFont&)
| setFont |
[virtual slot]
Overridden for internal reasons; the API remains unaffected.
| void setUseTips (bool on = true)
| setUseTips |
[slot]
Turn 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.
| void setTipText (const QString& tip)
| setTipText |
[slot]
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()
| void setHighlightedColor (const QColor& highcolor)
| setHighlightedColor |
[slot]
Set the highlight color.
This is the default foreground
color (non-selected). By default, it is blue.
| void setHighlightedColor (const QString& highcolor)
| setHighlightedColor |
[slot]
This is an overloaded version for convenience.
See also: setHighlightedColor()
| void setSelectedColor (const QColor& selcolor)
| setSelectedColor |
[slot]
Set the selected color.
This is the color the text will change
to when either a mouse passes over it and "glow" mode is on or
when it is selected (clicked). By default, it is red.
| void setSelectedColor (const QString& selcolor)
| setSelectedColor |
[slot]
This is an overloaded version for convenience.
See also: setSelectedColor()
| void setUseCursor (bool on, QCursor* cursor = 0L)
| setUseCursor |
[slot]
Turn 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".
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| void setGlow (bool glow = true)
| setGlow |
[slot]
Turn 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.
| void setFloat (bool do_float = true)
| setFloat |
[slot]
Turn 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.
| void setAltPixmap (const QPixmap& altPix)
| setAltPixmap |
[slot]
Set 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: altPixmap()
| void enteredURL (const QString& url)
| enteredURL |
[signal]
The mouse has passed over the label.
Parameters:
| url | The URL for this label. |
| void enteredURL ()
| enteredURL |
[signal]
The mouse has passed over the label.
| void leftURL (const QString& url)
| leftURL |
[signal]
The mouse is no longer over the label.
Parameters:
| url | The URL for this label. |
| void leftURL ()
| leftURL |
[signal]
The mouse is no longer over the label.
| void leftClickedURL (const QString& url)
| leftClickedURL |
[signal]
The user clicked the left mouse button on this label.
Parameters:
| url | The URL for this label. |
| void leftClickedURL ()
| leftClickedURL |
[signal]
The user clicked the left mouse button on this label.
| void rightClickedURL (const QString& url)
| rightClickedURL |
[signal]
The user clicked the right mouse button on this label.
Parameters:
| url | The URL for this label. |
| void rightClickedURL ()
| rightClickedURL |
[signal]
The user clicked the left mouse button on this label.
| void middleClickedURL (const QString& url)
| middleClickedURL |
[signal]
The user clicked the middle mouse button on this label.
Parameters:
| url | The URL for this label. |
| void middleClickedURL ()
| middleClickedURL |
[signal]
The user clicked the left mouse button on this label.
| void mousePressEvent (QMouseEvent*)
| mousePressEvent |
[protected virtual]
Overridden for internal reasons; the API remains unaffected.
| void mouseReleaseEvent (QMouseEvent*)
| mouseReleaseEvent |
[protected virtual]
Overridden for internal reasons; the API remains unaffected.
| void enterEvent (QEvent*)
| enterEvent |
[protected virtual]
Overridden for internal reasons; the API remains unaffected.
| void leaveEvent (QEvent*)
| leaveEvent |
[protected virtual]
Overridden for internal reasons; the API remains unaffected.