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616 lines
22 KiB
616 lines
22 KiB
/* This file is part of the KDE Libraries
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* Copyright (C) 1999-2000 Espen Sand (espen@kde.org)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _KJANUS_WIDGET_H_
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#define _KJANUS_WIDGET_H_
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#include <tqptrlist.h>
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#include <tqpixmap.h>
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#include <tqsplitter.h>
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#include <klistbox.h>
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#include <tqstringlist.h>
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#include <tqmap.h>
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class KListView;
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class TQGrid;
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class TQHBox;
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class TQLabel;
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class TQTabWidget;
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class TQVBox;
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class TQWidgetStack;
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class KSeparator;
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class TQListViewItem;
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class KGuiItem;
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/**
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* @short Easy to use widget with many layouts
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*
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* Provides a number of ready to use layouts (faces). It is used
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* as an internal widget in KDialogBase, but can also used as a
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* widget of its own.
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*
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* This class provides KJanusWidget::TreeList, KJanusWidget::IconList,
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* KJanusWidget::Tabbed, KJanusWidget::Plain and KJanusWidget::Swallow layouts.
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*
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* For all modes it is important that you specify the TQWidget::tqminimumSize()
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* on the page, plain widget or the swallowed widget. If you use a QLayout
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* on the page, plain widget or the swallowed widget this will be taken care
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* of automatically. The size is used when the KJanusWidget determines its
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* own minimum size. You get the minimum size by using the
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* tqminimumSizeHint() or tqsizeHint() methods.
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*
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* Pages that have been added in TreeList, IconList or Tabbed mode can be
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* removed by simply deleting the page. However, it would be preferable to use
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* the TQObject::deleteLater() function on the page as the main event loop
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* may have optimized UI update events of the page by scheduling them for later.
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*
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* @author Espen Sand (espen@kde.org)
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*/
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class KDEUI_EXPORT KJanusWidget : public TQWidget
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{
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Q_OBJECT
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private:
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class IconListBox : public KListBox
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{
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friend class KJanusWidget;
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public:
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IconListBox( TQWidget *parent=0, const char *name=0, WFlags f=0 );
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void updateMinimumHeight();
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void updateWidth();
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void invalidateHeight();
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void invalidateWidth();
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void setShowAll( bool showAll );
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protected:
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void slotOnItem( TQListBoxItem *item );
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virtual void leaveEvent( TQEvent * );
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private:
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bool mShowAll;
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bool mHeightValid;
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bool mWidthValid;
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TQListBoxItem *mOldItem;
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};
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public:
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enum Face
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{
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/**
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* The TreeList face provides a list in the left area and pages in the
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* right. The area are separated by a movable splitter. The style is somewhat
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* similar to the layout in the Control Center. A page is raised by
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* selecting the corresponding tree list item.
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*/
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TreeList = 0,
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/** The Tabbed face is a common tabbed widget. The procedure for creating a
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* page is similar for creating a TreeList. This has the advantage that if
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* your widget contain too many pages it is trivial to convert it into a
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* TreeList. Just change the face in the KJanusWidget constructor to
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* KJanusWidget::TreeList and you have a tree list layout instead.
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*/
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Tabbed,
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/**
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* The Plain face provides an empty widget (TQFrame) where you can place your
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* widgets. The KJanusWidget makes no assumptions regarding the contents so
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* you are free to add whatever you want.
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*/
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Plain,
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/**
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* The Swallow face is provided in order to simplify the usage of existing
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* widgets and to allow changing the visible widget. You specify the widget
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* to be displayed by setSwallowedWidget(). Your widget will be
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* reparented inside the widget. You can specify a Null (0) widget. A empty
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* space is then displayed.
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*/
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Swallow,
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/**
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* The IconList face provides an icon list in the left area and pages in the
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* right. For each entry the Icon is on top with the text below. The style
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* is somewhat similar to the layout of the Eudora configuation dialog box.
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* A page is raised by selecting the corresponding icon list item. The
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* preferred icon size is 32x32 pixels.
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*/
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IconList
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};
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public:
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/**
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* Constructor where you specify the face.
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*
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* @param parent Parent of the widget.
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* @param name Widget name.
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* @param face The kind of dialog, Use TreeList, Tabbed, Plain or
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* Swallow.
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*/
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KJanusWidget( TQWidget *parent=0, const char *name=0, int face=Plain );
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/**
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* Destructor.
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*/
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~KJanusWidget();
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/**
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* Raises the page which was added by addPage().
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*
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* @param index The index of the page you want to raise.
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*/
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virtual bool showPage( int index );
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/**
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* Returns the index of the page that are currently displayed.
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*
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* @return The index or -1 if the face is not Tabbed, TreeList or
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* IconList.
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*/
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virtual int activePageIndex() const;
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/**
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* Use this to verify
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* that no memory allocation failed.
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*
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* @return true if the widget was properly created.
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*/
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virtual bool isValid() const;
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/**
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* Returns the face type.
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*
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* @return The face type.
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*/
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virtual int face() const;
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/**
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* Returns the minimum size that must be made available for the widget
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* so that UIs can be displayed properly
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*
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* @return The minimum size.
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*/
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virtual TQSize tqminimumSizeHint() const;
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/**
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* Returns the recommended size for the widget in order to be displayed
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* properly.
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*
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* @return The recommended size.
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*/
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virtual TQSize tqsizeHint() const;
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/**
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* Returns the empty widget that is available in Plain mode.
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*
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* @return The widget or 0 if the face in not Plain.
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*/
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virtual TQFrame *plainPage();
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/**
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* Add a new page when the class is used in TreeList, IconList or Tabbed
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* mode. The returned widget is empty and you must add your widgets
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* as children to this widget. In most cases you must create a layout
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* manager and associate it with this widget as well.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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*
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* @param item String used in the list or Tab item.
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* @param header A longer string used in TreeList and IconList mode to
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* describe the contents of a page. If empty, the item string
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* will be used instead.
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* @param pixmap Used in IconList mode or in TreeList mode. You should
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* prefer a pixmap with size 32x32 pixels.
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*
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* @return The empty page or 0 if the face is not TreeList, IconList or
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* Tabbed.
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*/
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virtual TQFrame *addPage(const TQString &item,const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* This is like addPage just above, with the difference that the first
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* element is a list of strings. These strings are used to form a path
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* of folders down to the given page. The initial elements are names
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* for the folders, while the last element is the name of the page.
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* Note: This does yet only work for the TreeList face. Later this may
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* be added for the IconList face too. In other faces than the
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* TreeList, all the strings except the last one is ignored.
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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**/
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virtual TQFrame *addPage(const TQStringList &items, const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* Add a new page when the class is used in TreeList, IconList or Tabbed
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* mode. The returned widget is empty and you must add your widgets
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* as children to this widget. The returned widget is a QVBox
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* so it contains a TQVBoxLayout layout that lines up the child widgets
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* are vertically.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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*
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* @param item String used in the list or Tab item.
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* @param header A longer string used in TreeList and IconList mode to
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* describe the contents of a page. If empty, the item string
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* will be used instead.
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* @param pixmap Used in IconList mode or in TreeList mode. You should
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* prefer a pixmap with size 32x32 pixels.
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*
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* @return The empty page or 0 if the face is not TreeList, IconList or
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* Tabbed. */
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virtual TQVBox *addVBoxPage( const TQString &item,
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const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* This is like addVBoxPage just above, with the difference that the first
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* element is a list of strings. These strings are used to form a path
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* of folders down to the given page. The initial elements are names
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* for the folders, while the last element is the name of the page.
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* Note: This does yet only work for the TreeList face. Later this may
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* be added for the IconList face too. In other faces than the
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* TreeList, all the strings except the last one is ignored.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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**/
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virtual TQVBox *addVBoxPage( const TQStringList &items,
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const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* Add a new page when the class is used in TreeList, IconList or Tabbed
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* mode. The returned widget is empty and you must add your widgets
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* as children to this widget. The returned widget is a QHBox
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* so it contains a TQHBoxLayout layout that lines up the child widgets
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* are horizontally.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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*
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* @param itemName String used in the list or Tab item.
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* @param header A longer string used in TreeList and IconList mode to
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* describe the contents of a page. If empty, the item string
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* will be used instead.
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* @param pixmap Used in IconList mode or in TreeList mode. You should
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* prefer a pixmap with size 32x32 pixels.
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*
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* @return The empty page or 0 if the face is not TreeList, IconList or
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* Tabbed.
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*/
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virtual TQHBox *addHBoxPage( const TQString &itemName,
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const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* This is like addHBoxPage just above, with the difference that the first
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* element is a list of strings. These strings are used to form a path
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* of folders down to the given page. The initial elements are names
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* for the folders, while the last element is the name of the page.
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* Note: This does yet only work for the TreeList face. Later this may
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* be added for the IconList face too. In other faces than the
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* TreeList, all the strings except the last one is ignored.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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**/
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virtual TQHBox *addHBoxPage( const TQStringList &items,
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const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* Add a new page when the class is used in either TreeList or Tabbed
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* mode. The returned widget is empty and you must add your widgets
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* as children to this widget. The returned widget is a QGrid
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* so it contains a TQGridLayout layout that places up the child widgets
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* in a grid.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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*
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* @param n Specifies the number of columns if 'dir' is TQGrid::Horizontal
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* or the number of rows if 'dir' is TQGrid::Vertical.
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* @param dir Can be TQGrid::Horizontal or TQGrid::Vertical.
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* @param itemName String used in the list or Tab item.
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* @param header A longer string used in TreeList and IconList mode to
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* describe the contents of a page. If empty, the item string
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* will be used instead.
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* @param pixmap Used in IconList mode or in TreeList mode. You should
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* prefer a pixmap with size 32x32 pixels.
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*
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* @return The empty page or 0 if the face is not TreeList, IconList or
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* Tabbed.
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*/
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virtual TQGrid *addGridPage( int n, Orientation dir,
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const TQString &itemName,
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const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* This is like addGridPage just above, with the difference that the first
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* element is a list of strings. These strings are used to form a path
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* of folders down to the given page. The initial elements are names
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* for the folders, while the last element is the name of the page.
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* Note: This does yet only work for the TreeList face. Later this may
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* be added for the IconList face too. In other faces than the
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* TreeList, all the strings except the last one is ignored.
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*
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* Deleting the returned frame will cause the listitem or tab to be
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* removed (you can re-add a page with the same name later.
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**/
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virtual TQGrid *addGridPage( int n, Orientation dir,
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const TQStringList &items,
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const TQString &header=TQString::null,
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const TQPixmap &pixmap=TQPixmap() );
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/**
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* @short Removes a page created with addPage, addVBoxPage,
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* addHBoxPage or addGridPage. If the page has already
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* been deleted or has already been removed, nothing happens. The widget
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* itself is not deleted.
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*
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* @param page The widget returned by addPage , addVBoxPage ,
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* addHBoxPage or addGridPage .
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*/
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void removePage( TQWidget *page );
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/**
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* Returns the index of a page created with addPage ,
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* addVBoxPage , addHBoxPage or addGridPage .
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* You can can compare this index with the value returned from
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* activePageIndex if you need to do some page specific actions
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* in your code.
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*
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* The returned index will never change so you can safely use this
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* function once and save the value.
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*
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* @param widget The widget returned by addPage , addVBoxPage ,
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* addHBoxPage or addGridPage .
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*
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* @return The index or -1 if the face is not Tabbed, TreeList or
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* IconList
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*/
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virtual int pageIndex( TQWidget *widget ) const;
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/**
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* Defines the widget to be swallowed.
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*
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* This method can be used several
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* times. Only the latest defined widget will be shown.
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*
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* @param widget The widget to be swallowed. If 0, then an empty rectangle
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* is displayed.
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*/
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virtual bool setSwallowedWidget( TQWidget *widget );
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/**
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* This function has only effect in TreeList mode.
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*
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* Defines how the tree list is resized when the widget is resized
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* horizontally. By default the tree list keeps its width when the
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* widget becomes wider.
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*
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* @param state The resize mode. If false (default) the TreeList keeps
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* its current width when the widget becomes wider.
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*/
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virtual void setTreeListAutoResize( bool state );
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/**
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* This function has only effect in TreeList mode.
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*
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* This tells the widgets whether the icons given in the addPage,
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* addVBoxPage, addHBoxPage, or addGridPage methods should
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* be shown in the TreeList.
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*
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* Note: This method must be called before calling any of the methods
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* which add icons to the page.
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*
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* @param state If true the icons are shown.
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**/
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virtual void setShowIconsInTreeList(bool state);
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/**
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* This function has only effect in TreeList mode.
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*
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* This tells the widgets whether the root should be decorated.
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* For details see TQListView::setRootIsDecorated
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*
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* @param state Root will be decorated if true.
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**/
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virtual void setRootIsDecorated( bool state );
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/**
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* This function has only effect in TreeList mode.
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*
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* This tells the TreeList to unfold the whole tree so that all entries
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* are visible.
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*
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* If the list is empty when you call this method newly created entries
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* will not automatically be opened. If the @p persist flag is set opened
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* entries cannot be closed again, though.
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*
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* @param persist If true the tree always stays unfolded.
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* @since 3.2
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*/
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/*virtual*/ void unfoldTreeList( bool persist = false ); //### KDE4 BIC add virtual
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/**
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* Add a widget at the bottom of the TreeList/IconList.
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*
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* @param widget The widget to be added. It will be reparented into the
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* KJanusWidget, therefor it will be deleted with the
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* KJanusWidget, too. To be on the save side just don't keep
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* the pointer to this widget.
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*/
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/*virtual*/ void addWidgetBelowList( TQWidget * widget ); // ### KDE4
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/**
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* Add a button at the bottom of the TreeList/IconList.
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*
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* @param text The text on the PushButton.
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* @param recv The object that is to receive the signal when the button
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* is clicked.
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* @param slot The slot to connect to the clicked signal of the button.
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*
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* @since 3.2
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*/
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/*virtual*/ void addButtonBelowList( const TQString & text, TQObject * recv,
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const char * slot ); //### KDE4
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/**
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* The same as the above function, but with a KGuiItem providing the text
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* and icon for the button at the bottom of the TreeList/IconList.
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*
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* @param guiitem The text and icon on the PushButton.
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* @param recv The object that is to receive the signal when the button
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* is clicked.
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* @param slot The slot to connect to the clicked signal of the button.
|
|
*
|
|
* @since 3.2
|
|
*/
|
|
/*virtual*/ void addButtonBelowList( const KGuiItem & guiitem, TQObject *
|
|
recv, const char * slot ); //### KDE4
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @param 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 setIconListAllVisible( bool state );
|
|
|
|
/**
|
|
* Sets the icon used in TreeList Mode for the given path.
|
|
* @param path The path for which this icon should be shown.
|
|
* @param pixmap The icon used.
|
|
**/
|
|
virtual void setFolderIcon(const TQStringList &path, const TQPixmap &pixmap);
|
|
/**
|
|
* Returns the title string associated with a page index in TreeList or IconList mode.
|
|
* @param index The index of the page or null if there is no such page.
|
|
* @see pageIndex()
|
|
* @since 3.2
|
|
*/
|
|
/*virtual*/ TQString pageTitle(int index) const;
|
|
/**
|
|
* Returns the page widget associated with a page index or null if there is
|
|
* no such page.
|
|
* @param index The index of the page.
|
|
* @see pageIndex()
|
|
* @since 3.2
|
|
*/
|
|
/*virtual*/ TQWidget *pageWidget(int index) const;
|
|
|
|
signals:
|
|
/**
|
|
* This signal is emitted whenever the current page changes.
|
|
* @param page the new page.
|
|
* @since 3.4
|
|
*/
|
|
void aboutToShowPage(TQWidget *page);
|
|
|
|
public slots:
|
|
/**
|
|
* Give the keyboard input focus to the widget.
|
|
*/
|
|
virtual void setFocus();
|
|
|
|
protected:
|
|
/**
|
|
* Reimplemented to handle the splitter width when the the face
|
|
* is TreeList
|
|
*/
|
|
virtual void showEvent( TQShowEvent * );
|
|
|
|
/**
|
|
* 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.
|
|
*
|
|
* @param o Object that has received an event.
|
|
* @param e The event.
|
|
*/
|
|
virtual bool eventFilter( TQObject *o, TQEvent *e );
|
|
|
|
private slots:
|
|
bool slotShowPage();
|
|
void slotFontChanged();
|
|
|
|
void slotOnItem(TQListBoxItem *item);
|
|
void slotItemClicked(TQListViewItem *it);
|
|
void pageGone(TQObject *obj); // signal from the added page's "destroyed" signal
|
|
void slotReopen(TQListViewItem *item);
|
|
|
|
protected:
|
|
bool showPage( TQWidget *w );
|
|
void addPageWidget( TQFrame *page, const TQStringList &items,
|
|
const TQString &header, const TQPixmap &pixmap );
|
|
void InsertTreeListItem(const TQStringList &items, const TQPixmap &pixmap, TQFrame *page);
|
|
TQWidget *FindParent();
|
|
|
|
private:
|
|
bool mValid;
|
|
|
|
// Obsolete members. Remove in KDE 4.
|
|
TQPtrList<TQWidget> *mPageList;
|
|
TQStringList *mTitleList;
|
|
|
|
int mFace;
|
|
KListView *mTreeList;
|
|
IconListBox *mIconList;
|
|
TQWidgetStack *mPageStack;
|
|
TQLabel *mTitleLabel;
|
|
TQTabWidget *mTabControl;
|
|
TQFrame *mPlainPage;
|
|
TQWidget *mSwallowPage;
|
|
TQWidget *mActivePageWidget;
|
|
KSeparator *mTitleSep;
|
|
TQSplitter::ResizeMode mTreeListResizeMode;
|
|
bool mShowIconsInTreeList;
|
|
TQMap<TQListViewItem *, TQWidget *> mTreeListToPageStack;
|
|
TQMap<TQListBoxItem *, TQWidget *> mIconListToPageStack;
|
|
TQMap<TQString, TQPixmap> mFolderIconMap;
|
|
TQMap<TQString, TQStringList> mChildrenNames;
|
|
TQMap<TQString, TQWidget *> mChildPages;
|
|
|
|
public:
|
|
class IconListItem;
|
|
protected:
|
|
virtual void virtual_hook( int id, void* data );
|
|
private:
|
|
class KJanusWidgetPrivate;
|
|
KJanusWidgetPrivate *d;
|
|
};
|
|
|
|
#endif
|