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KJanusWidget Class Reference

Easy to use widget with many layouts. More...

#include <kjanuswidget.h>

List of all members.

Public Slots

virtual void setFocus ()

Public Methods

 KJanusWidget (QWidget *parent=0, const char *name=0, int face=Plain)
 ~KJanusWidget ()
virtual bool showPage (int index)
virtual int activePageIndex () const
virtual bool isValid () const
virtual int face () const
virtual QSize minimumSizeHint () const
virtual QSize sizeHint () const
virtual QFrame * plainPage ()
virtual QFrame * addPage (const QString &item, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QFrame * addPage (const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QVBox * addVBoxPage (const QString &item, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QVBox * addVBoxPage (const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QHBox * addHBoxPage (const QString &itemName, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QHBox * addHBoxPage (const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QGrid * addGridPage (int n, Orientation dir, const QString &itemName, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
virtual QGrid * addGridPage (int n, Orientation dir, const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap())
void removePage (QWidget *page)
 Removes a page created with addPage, addVBoxPage, addHBoxPage or addGridPage. If the page has already been deleted or has already been removed, nothing happens. The widget itself is not deleted.

virtual int pageIndex (QWidget *widget) const
virtual bool setSwallowedWidget (QWidget *widget)
virtual void setTreeListAutoResize (bool state)
virtual void setShowIconsInTreeList (bool state)
virtual void setRootIsDecorated (bool state)
virtual void setIconListAllVisible (bool state)
virtual void setFolderIcon (const QStringList &path, const QPixmap &pixmap)

Protected Methods

virtual void showEvent (QShowEvent *)
virtual bool eventFilter (QObject *o, QEvent *e)


Detailed Description

Easy to use widget with many layouts.

Provides a number of ready to use layouts (faces). It is used as an internal widget in KDialogBase, but can also used as a widget of its own.

It provides TreeList, IconList, Tabbed, Plain and Swallow layouts.

The TreeList face provides a list in the left area and pages in the right. The area are separated by a movable splitter. The style is somewhat similar to the layout in the Control Center. A page is raised by selecting the corresponding tree list item.

The IconList face provides an icon list in the left area and pages in the right. For each entry the Icon is on top with the text below. The style is somewhat similar to the layout of the Eudora configuation dialog box. A page is raised by selecting the corresponding icon list item. The preferred icon size is 32x32 pixels.

The Tabbed face is a common tabbed widget. The procedure for creating a page is similar for creating a TreeList. This has the advantage that if your widget contain too many pages it is trivial to convert it into a TreeList. Just change the face in the KJanusWidget constructor to KJanusWidget::TreeList and you have a tree list layout instead.

The Plain face provides an empty widget (QFrame) where you can place your widgets. The KJanusWidget makes no assumptions regarding the contents so you are free to add whatever you want.

The Swallow face is provided in order to simplify the usage of existing widgets and to allow changing the visible widget. You specify the widget to be displayed by setSwallowedWidget(). Your widget will be reparented inside the widget. You can specify a Null (0) widget. A empty space is then displayed.

For all modes it is important that you specify the QWidget::minimumSize() on the page, plain widget or the swallowed widget. If you use a QLayout on the page, plain widget or the swallowed widget this will be taken care of automatically. The size is used when the KJanusWidget determines its own minimum size. You get the minimum size by using the minimumSizeHint() or sizeHint() methods.

Pages that have been added in TreeList, IconList or Tabbed mode can be removed by simply deleting the page.

Author:
Espen Sand (espen@kde.org)

Definition at line 89 of file kjanuswidget.h.


Constructor & Destructor Documentation

KJanusWidget::KJanusWidget QWidget *    parent = 0,
const char *    name = 0,
int    face = Plain
 

Constructor where you specify the face.

Parameters:
parent  Parent of the widget.
name  Widget name.
int  face The kind of dialog, Use TreeList, Tabbed, Plain or Swallow.

KJanusWidget::~KJanusWidget  
 

Destructor.


Member Function Documentation

virtual int KJanusWidget::activePageIndex   [virtual]
 

Returns the index of the page that are currently displayed.

Returns:
The index or -1 if the face is not Tabbed, TreeList or IconList.

virtual QGrid* KJanusWidget::addGridPage int    n,
Orientation    dir,
const QStringList &    items,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

This is like addGridPage just above, with the difference that the first element is a list of strings. These strings are used to form a path of folders down to the given page. The initial elements are names for the folders, while the last element is the name of the page. Note: This does yet only work for the TreeList face. Later this may be added for the IconList face too. In other faces than the TreeList, all the strings except the last one is ignored.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

virtual QGrid* KJanusWidget::addGridPage int    n,
Orientation    dir,
const QString &    itemName,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

Add a new page when the class is used in either TreeList or Tabbed mode. The returned widget is empty and you must add your widgets as children to this widget. The returned widget is a QGrid so it contains a QGridLayout layout that places up the child widgets in a grid.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

Parameters:
n  Specifies the number of columns if 'dir' is QGrid::Horizontal or the number of rows if 'dir' is QGrid::Vertical.
dir  Can be QGrid::Horizontal or QGrid::Vertical.
item  String used in the list or Tab item.
header  A longer string used in TreeList and IconList mode to describe the contents of a page. If empty, the item string will be used instead.
pixmap  Used in IconList mode or in TreeList mode. You should prefer a pixmap with size 32x32 pixels.
Returns:
The empty page or 0 if the face is not TreeList, IconList or Tabbed.

virtual QHBox* KJanusWidget::addHBoxPage const QStringList &    items,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

This is like addHBoxPage just above, with the difference that the first element is a list of strings. These strings are used to form a path of folders down to the given page. The initial elements are names for the folders, while the last element is the name of the page. Note: This does yet only work for the TreeList face. Later this may be added for the IconList face too. In other faces than the TreeList, all the strings except the last one is ignored.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

virtual QHBox* KJanusWidget::addHBoxPage const QString &    itemName,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

Add a new page when the class is used in TreeList, IconList or Tabbed mode. The returned widget is empty and you must add your widgets as children to this widget. The returned widget is a QHBox so it contains a QHBoxLayout layout that lines up the child widgets are horizontally.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

Parameters:
item  String used in the list or Tab item.
header  A longer string used in TreeList and IconList mode to describe the contents of a page. If empty, the item string will be used instead.
pixmap  Used in IconList mode or in TreeList mode. You should prefer a pixmap with size 32x32 pixels.
Returns:
The empty page or 0 if the face is not TreeList, IconList or Tabbed.

virtual QFrame* KJanusWidget::addPage const QStringList &    items,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

This is like addPage just above, with the difference that the first element is a list of strings. These strings are used to form a path of folders down to the given page. The initial elements are names for the folders, while the last element is the name of the page. Note: This does yet only work for the TreeList face. Later this may be added for the IconList face too. In other faces than the TreeList, all the strings except the last one is ignored. Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

virtual QFrame* KJanusWidget::addPage const QString &    item,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

Add a new page when the class is used in TreeList, IconList or Tabbed mode. The returned widget is empty and you must add your widgets as children to this widget. In most cases you must create a layout manager and associate it with this widget as well.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

Parameters:
item  String used in the list or Tab item.
header  A longer string used in TreeList and IconList mode to describe the contents of a page. If empty, the item string will be used instead.
pixmap  Used in IconList mode or in TreeList mode. You should prefer a pixmap with size 32x32 pixels.
Returns:
The empty page or 0 if the face is not TreeList, IconList or Tabbed.

virtual QVBox* KJanusWidget::addVBoxPage const QStringList &    items,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

This is like addVBoxPage just above, with the difference that the first element is a list of strings. These strings are used to form a path of folders down to the given page. The initial elements are names for the folders, while the last element is the name of the page. Note: This does yet only work for the TreeList face. Later this may be added for the IconList face too. In other faces than the TreeList, all the strings except the last one is ignored.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

virtual QVBox* KJanusWidget::addVBoxPage const QString &    item,
const QString &    header = QString::null,
const QPixmap &    pixmap = QPixmap()
[virtual]
 

Add a new page when the class is used in TreeList, IconList or Tabbed mode. The returned widget is empty and you must add your widgets as children to this widget. The returned widget is a QVBox so it contains a QVBoxLayout layout that lines up the child widgets are vertically.

Deleting the returned frame will cause the listitem or tab to be removed (you can re-add a page with the same name later.

Parameters:
item  String used in the list or Tab item.
header  A longer string used in TreeList and IconList mode to describe the contents of a page. If empty, the item string will be used instead.
pixmap  Used in IconList mode or in TreeList mode. You should prefer a pixmap with size 32x32 pixels.
Returns:
The empty page or 0 if the face is not TreeList, IconList or Tabbed.

virtual bool KJanusWidget::eventFilter QObject *    o,
QEvent *    e
[protected, virtual]
 

This function is used internally when in IconList mode. If you reimplement this class a make your own event filter, make sure to call this function from your filter.

Parameters:
o  Object that has received an event.
e  The event.

virtual int KJanusWidget::face   [virtual]
 

Returns the face type.

Returns:
The face type.

virtual bool KJanusWidget::isValid   [virtual]
 

Use this to verify that no memory allocation failed.

Returns:
true if the widget was properly created.

virtual QSize KJanusWidget::minimumSizeHint   [virtual]
 

Returns the minimum size that must be made available for the widget so that UIs can be displayed properly

Returns:
The minimum size.

virtual int KJanusWidget::pageIndex QWidget *    widget const [virtual]
 

Returns the index of a page created with addPage , addVBoxPage , addHBoxPage or addGridPage . You can can compare this index with the value returned from activePageIndex if you need to do some page specific actions in your code.

The returned index will never change so you can safely use this function once and save the value.

Parameters:
widget  The widget returned by addPage , addVBoxPage , addHBoxPage or addGridPage .
Returns:
The index or -1 if the face is not Tabbed, TreeList or IconList

virtual QFrame* KJanusWidget::plainPage   [virtual]
 

Returns the empty widget that is available in Plain mode.

Returns:
The widget or 0 if the face in not Plain.

void KJanusWidget::removePage QWidget *    page
 

Removes a page created with addPage, addVBoxPage, addHBoxPage or addGridPage. If the page has already been deleted or has already been removed, nothing happens. The widget itself is not deleted.

Parameters:
page  The widget returned by addPage , addVBoxPage , addHBoxPage or addGridPage .

virtual void KJanusWidget::setFocus   [virtual, slot]
 

Give the keyboard input focus to the widget.

virtual void KJanusWidget::setFolderIcon const QStringList &    path,
const QPixmap &    pixmap
[virtual]
 

Sets the icon used in TreeList Mode for the given path.

Parameters:
path  The path for which this icon should be shown.
pixmap  The icon used.

virtual void KJanusWidget::setIconListAllVisible bool    state [virtual]
 

This function has only effect in IconList mode.

Defines how the icon list widget is displayed. By default it is the widgets in the pages that decide the minimum height of the toplevel widget. A vertical scrollbar can be used in the icon list area.

Parameters:
state  The visibility mode. If true, the minimum height is adjusted so that every icon in the list is visible at the same time. The vertical scrollbar will never be visible.

virtual void KJanusWidget::setRootIsDecorated bool    state [virtual]
 

This function has only effect in TreeList mode.

This tells the widgets whether the root should be decorated. For details see QListView::setRootIsDecorated

Parameters:
state  Root will be decorated if true.

virtual void KJanusWidget::setShowIconsInTreeList bool    state [virtual]
 

This function has only effect in TreeList mode.

This tells the widgets whether the icons given in the addPage, addVBoxPage, addHBoxPage, or addGridPage methods should be shown in the TreeList.

Note: This method must be called before calling any of the methods which add icons to the page.

Parameters:
state  If true the icons are shown.

virtual bool KJanusWidget::setSwallowedWidget QWidget *    widget [virtual]
 

Defines the widget to be swallowed.

This method can be used several times. Only the latest defined widget will be shown.

Parameters:
widget  The widget to be swallowed. If 0, then an empty rectangle is displayed.

virtual void KJanusWidget::setTreeListAutoResize bool    state [virtual]
 

This function has only effect in TreeList mode.

Defines how the tree list is resized when the widget is resized horizontally. By default the tree list keeps its width when the widget becomes wider.

Parameters:
state  The resize mode. If false (default) the TreeList keeps its current width when the widget becomes wider.

virtual void KJanusWidget::showEvent QShowEvent *    [protected, virtual]
 

Reimplemented to handle the splitter width when the the face is TreeList

virtual bool KJanusWidget::showPage int    index [virtual]
 

Raises the page which was added by addPage().

Parameters:
index  The index of the page you want to raise.

virtual QSize KJanusWidget::sizeHint   [virtual]
 

Returns the recommended size for the widget in order to be displayed properly.

Returns:
The recommended size.


The documentation for this class was generated from the following file:
Generated on Wed Aug 13 23:30:16 2003 for kdelibs by doxygen1.2.18