/* This file is part of the KDE Libraries * Copyright (C) 1999-2000 Espen Sand (espen@kde.org) * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public License * along with this library; see the file COPYING.LIB. If not, write to * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef _KJANUS_WIDGET_H_ #define _KJANUS_WIDGET_H_ #include #include #include #include //Added by qt3to4: #include #include #include #include #include #include /*US #include #include #include #include #include */ class KSeparator; class KListView; class Q3WidgetStack; class QLabel; class QTabWidget; class Q3ListViewItem; class Q3VBox; class Q3HBox; /** * Provides a number of ready to use layouts (faces). It is used * as an internal widget in @ref 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 @ref #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 @ref 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 * @ref #minimumSizeHint() or @ref #sizeHint() methods. * * Pages that have been added in TreeList, IconList or Tabbed mode can be * removed by simply deleting the page. However, it would be preferable to use * the QObject::deleteLater() function on the page as the main event loop * may have optimized UI update events of the page by scheduling them for later. * * @short Easy to use widget with many layouts * @author Espen Sand (espen@kde.org) */ class KJanusWidget : public QWidget { Q_OBJECT private: class IconListBox : public KListBox { public: IconListBox( QWidget *parent=0, const char *name=0, Qt::WFlags f=0 ); void updateMinimumHeight(); void updateWidth(); void invalidateHeight(); void invalidateWidth(); void setShowAll( bool showAll ); private: bool mShowAll; bool mHeightValid; bool mWidthValid; }; public: enum Face { TreeList = 0, Tabbed, Plain, Swallow, IconList }; public: /** * Constructor where you specify the face. * * @param parent Parent of the widget. * @param name Widget name. * @param int face The kind of dialog, Use TreeList, Tabbed, Plain or * Swallow. */ KJanusWidget( QWidget *parent=0, const char *name=0, int face=Plain ); /** * Destructor. */ ~KJanusWidget(); /** * Raises the page which was added by @ref addPage(). * * @param index The index of the page you want to raise. */ virtual bool showPage( int index ); /** * Returns the index of the page that are currently displayed. * * @return The index or -1 if the face is not Tabbed, TreeList or * IconList. */ virtual int activePageIndex() const; /** * Use this to verify * that no memory allocation failed. * * @return true if the widget was properly created. */ virtual bool isValid() const; /** * Returns the face type. * * @return The face type. */ virtual int face() const; /** * Returns the minimum size that must be made available for the widget * so that UIs can be displayed properly * * @return The minimum size. */ virtual QSize minimumSizeHint() const; /** * Returns the recommended size for the widget in order to be displayed * properly. * * @return The recommended size. */ virtual QSize sizeHint() const; /** * Returns the empty widget that is available in Plain mode. * * @return The widget or 0 if the face in not Plain. */ virtual Q3Frame *plainPage(); /** * 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. * * @param item String used in the list or Tab item. * @param 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. * @param pixmap Used in IconList mode or in TreeList mode. You should * prefer a pixmap with size 32x32 pixels. * * @return The empty page or 0 if the face is not TreeList, IconList or * Tabbed. */ virtual Q3Frame *addPage(const QString &item,const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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 Q3Frame *addPage(const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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 @ref 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. * * @param item String used in the list or Tab item. * @param 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. * @param pixmap Used in IconList mode or in TreeList mode. You should * prefer a pixmap with size 32x32 pixels. * * @return The empty page or 0 if the face is not TreeList, IconList or * Tabbed. */ virtual Q3VBox *addVBoxPage( const QString &item, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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 Q3VBox *addVBoxPage( const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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 @ref 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. * * @param item String used in the list or Tab item. * @param 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. * @param pixmap Used in IconList mode or in TreeList mode. You should * prefer a pixmap with size 32x32 pixels. * * @return The empty page or 0 if the face is not TreeList, IconList or * Tabbed. */ virtual Q3HBox *addHBoxPage( const QString &itemName, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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 Q3HBox *addHBoxPage( const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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 @ref 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. * * @param n Specifies the number of columns if 'dir' is QGrid::Horizontal * or the number of rows if 'dir' is QGrid::Vertical. * @param dir Can be QGrid::Horizontal or QGrid::Vertical. * @param item String used in the list or Tab item. * @param 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. * @param pixmap Used in IconList mode or in TreeList mode. You should * prefer a pixmap with size 32x32 pixels. * * @return The empty page or 0 if the face is not TreeList, IconList or * Tabbed. */ //US changed Orientation into Direction for compatibility virtual Q3Grid *addGridPage( int n, Qt::Orientation dir, const QString &itemName, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * 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. **/ //US changed Orientation into Direction for compatibility virtual Q3Grid *addGridPage( int n, Qt::Orientation dir, const QStringList &items, const QString &header=QString::null, const QPixmap &pixmap=QPixmap() ); /** * @short Removes a page created with @ref addPage, @ref addVBoxPage, * @ref addHBoxPage or @ref addGridPage. If the page has already * been deleted or has already been removed, nothing happens. The widget * itself is not deleted. * * @param page The widget returned by @ref addPage , @ref addVBoxPage , * @ref addHBoxPage or @ref addGridPage . */ void removePage( QWidget *page ); /** * Returns the index of a page created with @ref addPage , * @ref addVBoxPage , @ref addHBoxPage or @ref addGridPage . * You can can compare this index with the value returned from * @ref 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. * * @param widget The widget returned by @ref addPage , @ref addVBoxPage , * @ref addHBoxPage or @ref addGridPage . * * @return The index or -1 if the face is not Tabbed, TreeList or * IconList */ virtual int pageIndex( QWidget *widget ) const; /** * Defines the widget to be swallowed. * * This method can be used several * times. Only the latest defined widget will be shown. * * @param widget The widget to be swallowed. If 0, then an empty rectangle * is displayed. */ virtual bool setSwallowedWidget( QWidget *widget ); /** * 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. * * @param state The resize mode. If false (default) the TreeList keeps * its current width when the widget becomes wider. */ virtual void setTreeListAutoResize( bool state ); /** * This function has only effect in TreeList mode. * * This tells the widgets whether the icons given in the @ref addPage, * @ref addVBoxPage, @ref addHBoxPage, or @ref 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. * * @param state If true the icons are shown. **/ virtual void setShowIconsInTreeList(bool state); /** * This function has only effect in TreeList mode. * * This tells the widgets whether the root should be decorated. * For details see @ref QListView::setRootIsDecorated * * @param state Root will be decorated if true. **/ virtual void setRootIsDecorated( bool state ); /** * This function has only effect in TreeList mode. * * This tells the TreeList to unfold the whole tree so that all entries * are visible. * * If the list is empty when you call this method newly created entries * will not automatically be opened. If the @p persist flag is set opened * entries cannot be closed again, though. * * @param persist If true the tree always stays unfolded. * @since 3.2 */ /*virtual*/ void unfoldTreeList( bool persist = false ); //### KDE4 BIC add 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. * * @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 QStringList &path, const QPixmap &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 @ref #pageIndex() * @since 3.2 */ /*virtual*/ QString 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 @ref #pageIndex() * @since 3.2 */ /*virtual*/ QWidget *pageWidget(int index) const; signals: void aboutToShowPage(QWidget *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( QShowEvent * ); /** * 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( QObject *o, QEvent *e ); private slots: bool slotShowPage(); //US not yet implemented void slotFontChanged(); void slotItemClicked(Q3ListViewItem *it); void pageGone( QObject *obj); // signal from the added page's "destroyed" signal void slotReopen(Q3ListViewItem *item); protected: bool showPage( QWidget *w ); void addPageWidget( Q3Frame *page, const QStringList &items, const QString &header, const QPixmap &pixmap ); void InsertTreeListItem(const QStringList &items, const QPixmap &pixmap, Q3Frame *page); QWidget *FindParent(); private: bool mValid; // Obsolete members. Remove in KDE 4. Q3PtrList *mPageList; QStringList *mTitleList; int mFace; KListView *mTreeList; IconListBox *mIconList; Q3WidgetStack *mPageStack; QLabel *mTitleLabel; QTabWidget *mTabControl; Q3Frame *mPlainPage; QWidget *mSwallowPage; QWidget *mActivePageWidget; KSeparator *mTitleSep; //US QSplitter::ResizeMode mTreeListResizeMode; bool mShowIconsInTreeList; QMap mTreeListToPageStack; QMap mIconListToPageStack; QMap mFolderIconMap; QMap mChildrenNames; QMap mChildPages; public: class IconListItem; protected: virtual void virtual_hook( int id, void* data ); private: class KJanusWidgetPrivate; KJanusWidgetPrivate *d; }; #endif