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-rw-r--r--examples/listviews/listviews.cpp260
-rw-r--r--examples/listviews/listviews.doc30
-rw-r--r--examples/listviews/listviews.h166
-rw-r--r--examples/listviews/listviews.pro11
-rw-r--r--examples/listviews/main.cpp24
5 files changed, 491 insertions, 0 deletions
diff --git a/examples/listviews/listviews.cpp b/examples/listviews/listviews.cpp
new file mode 100644
index 0000000..057b7b6
--- /dev/null
+++ b/examples/listviews/listviews.cpp
@@ -0,0 +1,260 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for Qt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "listviews.h"
+
+#include <qlabel.h>
+#include <qpainter.h>
+#include <qpalette.h>
+#include <qobjectlist.h>
+#include <qpopupmenu.h>
+#include <qheader.h>
+#include <qregexp.h>
+
+// -----------------------------------------------------------------
+
+MessageHeader::MessageHeader( const MessageHeader &mh )
+{
+ msender = mh.msender;
+ msubject = mh.msubject;
+ mdatetime = mh.mdatetime;
+}
+
+MessageHeader &MessageHeader::operator=( const MessageHeader &mh )
+{
+ msender = mh.msender;
+ msubject = mh.msubject;
+ mdatetime = mh.mdatetime;
+
+ return *this;
+}
+
+// -----------------------------------------------------------------
+
+Folder::Folder( Folder *parent, const QString &name )
+ : QObject( parent, name ), fName( name )
+{
+ lstMessages.setAutoDelete( TRUE );
+}
+
+// -----------------------------------------------------------------
+
+FolderListItem::FolderListItem( QListView *parent, Folder *f )
+ : QListViewItem( parent )
+{
+ myFolder = f;
+ setText( 0, f->folderName() );
+
+ if ( myFolder->children() )
+ insertSubFolders( myFolder->children() );
+}
+
+FolderListItem::FolderListItem( FolderListItem *parent, Folder *f )
+ : QListViewItem( parent )
+{
+ myFolder = f;
+
+ setText( 0, f->folderName() );
+
+ if ( myFolder->children() )
+ insertSubFolders( myFolder->children() );
+}
+
+void FolderListItem::insertSubFolders( const QObjectList *lst )
+{
+ Folder *f;
+ for ( f = ( Folder* )( ( QObjectList* )lst )->first(); f; f = ( Folder* )( ( QObjectList* )lst )->next() )
+ (void)new FolderListItem( this, f );
+}
+
+// -----------------------------------------------------------------
+
+MessageListItem::MessageListItem( QListView *parent, Message *m )
+ : QListViewItem( parent )
+{
+ myMessage = m;
+ setText( 0, myMessage->header().sender() );
+ setText( 1, myMessage->header().subject() );
+ setText( 2, myMessage->header().datetime().toString() );
+}
+
+void MessageListItem::paintCell( QPainter *p, const QColorGroup &cg,
+ int column, int width, int alignment )
+{
+ QColorGroup _cg( cg );
+ QColor c = _cg.text();
+
+ if ( myMessage->state() == Message::Unread )
+ _cg.setColor( QColorGroup::Text, Qt::red );
+
+ QListViewItem::paintCell( p, _cg, column, width, alignment );
+
+ _cg.setColor( QColorGroup::Text, c );
+}
+
+// -----------------------------------------------------------------
+
+ListViews::ListViews( QWidget *parent, const char *name )
+ : QSplitter( Qt::Horizontal, parent, name )
+{
+ lstFolders.setAutoDelete( TRUE );
+
+ folders = new QListView( this );
+ folders->header()->setClickEnabled( FALSE );
+ folders->addColumn( "Folder" );
+
+ initFolders();
+ setupFolders();
+
+ folders->setRootIsDecorated( TRUE );
+ setResizeMode( folders, QSplitter::KeepSize );
+
+ QSplitter *vsplitter = new QSplitter( Qt::Vertical, this );
+
+ messages = new QListView( vsplitter );
+ messages->addColumn( "Sender" );
+ messages->addColumn( "Subject" );
+ messages->addColumn( "Date" );
+ messages->setColumnAlignment( 1, Qt::AlignRight );
+ messages->setAllColumnsShowFocus( TRUE );
+ messages->setShowSortIndicator( TRUE );
+ menu = new QPopupMenu( messages );
+ for( int i = 1; i <= 10; i++ )
+ menu->insertItem( QString( "Context Item %1" ).arg( i ) );
+ connect(messages, SIGNAL( contextMenuRequested( QListViewItem *, const QPoint& , int ) ),
+ this, SLOT( slotRMB( QListViewItem *, const QPoint &, int ) ) );
+ vsplitter->setResizeMode( messages, QSplitter::KeepSize );
+
+ message = new QLabel( vsplitter );
+ message->setAlignment( Qt::AlignTop );
+ message->setBackgroundMode( PaletteBase );
+
+ connect( folders, SIGNAL( selectionChanged( QListViewItem* ) ),
+ this, SLOT( slotFolderChanged( QListViewItem* ) ) );
+ connect( messages, SIGNAL( selectionChanged() ),
+ this, SLOT( slotMessageChanged() ) );
+ connect( messages, SIGNAL( currentChanged( QListViewItem * ) ),
+ this, SLOT( slotMessageChanged() ) );
+
+ messages->setSelectionMode( QListView::Extended );
+ // some preparations
+ folders->firstChild()->setOpen( TRUE );
+ folders->firstChild()->firstChild()->setOpen( TRUE );
+ folders->setCurrentItem( folders->firstChild()->firstChild()->firstChild() );
+ folders->setSelected( folders->firstChild()->firstChild()->firstChild(), TRUE );
+
+ messages->setSelected( messages->firstChild(), TRUE );
+ messages->setCurrentItem( messages->firstChild() );
+ message->setMargin( 5 );
+
+ QValueList<int> lst;
+ lst.append( 170 );
+ setSizes( lst );
+}
+
+void ListViews::initFolders()
+{
+ unsigned int mcount = 1;
+
+ for ( unsigned int i = 1; i < 20; i++ ) {
+ QString str;
+ str = QString( "Folder %1" ).arg( i );
+ Folder *f = new Folder( 0, str );
+ for ( unsigned int j = 1; j < 5; j++ ) {
+ QString str2;
+ str2 = QString( "Sub Folder %1" ).arg( j );
+ Folder *f2 = new Folder( f, str2 );
+ for ( unsigned int k = 1; k < 3; k++ ) {
+ QString str3;
+ str3 = QString( "Sub Sub Folder %1" ).arg( k );
+ Folder *f3 = new Folder( f2, str3 );
+ initFolder( f3, mcount );
+ }
+ }
+ lstFolders.append( f );
+ }
+}
+
+void ListViews::initFolder( Folder *folder, unsigned int &count )
+{
+ for ( unsigned int i = 0; i < 15; i++, count++ ) {
+ QString str;
+ str = QString( "Message %1 " ).arg( count );
+ QDateTime dt = QDateTime::currentDateTime();
+ dt = dt.addSecs( 60 * count );
+ MessageHeader mh( "Trolltech <info@trolltech.com> ", str, dt );
+
+ QString body;
+ body = QString( "This is the message number %1 of this application, \n"
+ "which shows how to use QListViews, QListViewItems, \n"
+ "QSplitters and so on. The code should show how easy\n"
+ "this can be done in Qt." ).arg( count );
+ Message *msg = new Message( mh, body );
+ folder->addMessage( msg );
+ }
+}
+
+void ListViews::setupFolders()
+{
+ folders->clear();
+
+ for ( Folder* f = lstFolders.first(); f; f = lstFolders.next() )
+ (void)new FolderListItem( folders, f );
+}
+
+void ListViews::slotRMB( QListViewItem* Item, const QPoint & point, int )
+{
+ if( Item )
+ menu->popup( point );
+}
+
+
+void ListViews::slotFolderChanged( QListViewItem *i )
+{
+ if ( !i )
+ return;
+ messages->clear();
+ message->setText( "" );
+
+ FolderListItem *item = ( FolderListItem* )i;
+
+ for ( Message* msg = item->folder()->firstMessage(); msg;
+ msg = item->folder()->nextMessage() )
+ (void)new MessageListItem( messages, msg );
+}
+
+void ListViews::slotMessageChanged()
+{
+ QListViewItem *i = messages->currentItem();
+ if ( !i )
+ return;
+
+ if ( !i->isSelected() ) {
+ message->setText( "" );
+ return;
+ }
+
+ MessageListItem *item = ( MessageListItem* )i;
+ Message *msg = item->message();
+
+ QString text;
+ QString tmp = msg->header().sender();
+ tmp = tmp.replace( "<", "&lt;" );
+ tmp = tmp.replace( ">", "&gt;" );
+ text = QString( "<b><i>From:</i></b> <a href=\"mailto:info@trolltech.com\">%1</a><br>"
+ "<b><i>Subject:</i></b> <big><big><b>%2</b></big></big><br>"
+ "<b><i>Date:</i></b> %3<br><br>"
+ "%4" ).
+ arg( tmp ).arg( msg->header().subject() ).
+ arg( msg->header().datetime().toString() ).arg( msg->body() );
+
+ message->setText( text );
+
+ msg->setState( Message::Read );
+}
diff --git a/examples/listviews/listviews.doc b/examples/listviews/listviews.doc
new file mode 100644
index 0000000..6e31f78
--- /dev/null
+++ b/examples/listviews/listviews.doc
@@ -0,0 +1,30 @@
+/*
+*/
+/*! \page listviews-example.html
+
+ \ingroup examples
+ \title Listviews
+
+ This examples shows how to work with listviews (hierarchical and multi-column).
+ It also shows how to subclass listview items for special reasons. It looks
+ and works like the main window of a mail client.
+
+ <hr>
+
+ Header file:
+
+ \include listviews/listviews.h
+
+ <hr>
+
+ Implementation:
+
+ \include listviews/listviews.cpp
+
+ <hr>
+
+ Main:
+
+ \include listviews/main.cpp
+*/
+
diff --git a/examples/listviews/listviews.h b/examples/listviews/listviews.h
new file mode 100644
index 0000000..94a30ee
--- /dev/null
+++ b/examples/listviews/listviews.h
@@ -0,0 +1,166 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for Qt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#ifndef LISTVIEWS_H
+#define LISTVIEWS_H
+
+#include <qsplitter.h>
+#include <qstring.h>
+#include <qobject.h>
+#include <qdatetime.h>
+#include <qptrlist.h>
+#include <qlistview.h>
+
+class QListView;
+class QLabel;
+class QPainter;
+class QColorGroup;
+class QObjectList;
+class QPopupMenu;
+
+// -----------------------------------------------------------------
+
+class MessageHeader
+{
+public:
+ MessageHeader( const QString &_sender, const QString &_subject, const QDateTime &_datetime )
+ : msender( _sender ), msubject( _subject ), mdatetime( _datetime )
+ {}
+
+ MessageHeader( const MessageHeader &mh );
+ MessageHeader &operator=( const MessageHeader &mh );
+
+ QString sender() { return msender; }
+ QString subject() { return msubject; }
+ QDateTime datetime() { return mdatetime; }
+
+protected:
+ QString msender, msubject;
+ QDateTime mdatetime;
+
+};
+
+// -----------------------------------------------------------------
+
+class Message
+{
+public:
+ enum State { Read = 0,
+ Unread};
+
+ Message( const MessageHeader &mh, const QString &_body )
+ : mheader( mh ), mbody( _body ), mstate( Unread )
+ {}
+
+ Message( const Message &m )
+ : mheader( m.mheader ), mbody( m.mbody ), mstate( m.mstate )
+ {}
+
+ MessageHeader header() { return mheader; }
+ QString body() { return mbody; }
+
+ void setState( const State &s ) { mstate = s; }
+ State state() { return mstate; }
+
+protected:
+ MessageHeader mheader;
+ QString mbody;
+ State mstate;
+
+};
+
+// -----------------------------------------------------------------
+
+class Folder : public QObject
+{
+ Q_OBJECT
+
+public:
+ Folder( Folder *parent, const QString &name );
+ ~Folder()
+ {}
+
+ void addMessage( Message *m )
+ { lstMessages.append( m ); }
+
+ QString folderName() { return fName; }
+
+ Message *firstMessage() { return lstMessages.first(); }
+ Message *nextMessage() { return lstMessages.next(); }
+
+protected:
+ QString fName;
+ QPtrList<Message> lstMessages;
+
+};
+
+// -----------------------------------------------------------------
+
+class FolderListItem : public QListViewItem
+{
+public:
+ FolderListItem( QListView *parent, Folder *f );
+ FolderListItem( FolderListItem *parent, Folder *f );
+
+ void insertSubFolders( const QObjectList *lst );
+
+ Folder *folder() { return myFolder; }
+
+protected:
+ Folder *myFolder;
+
+};
+
+// -----------------------------------------------------------------
+
+class MessageListItem : public QListViewItem
+{
+public:
+ MessageListItem( QListView *parent, Message *m );
+
+ virtual void paintCell( QPainter *p, const QColorGroup &cg,
+ int column, int width, int alignment );
+
+ Message *message() { return myMessage; }
+
+protected:
+ Message *myMessage;
+
+};
+
+// -----------------------------------------------------------------
+
+class ListViews : public QSplitter
+{
+ Q_OBJECT
+
+public:
+ ListViews( QWidget *parent = 0, const char *name = 0 );
+ ~ListViews()
+ {}
+
+protected:
+ void initFolders();
+ void initFolder( Folder *folder, unsigned int &count );
+ void setupFolders();
+
+ QListView *messages, *folders;
+ QLabel *message;
+ QPopupMenu* menu;
+
+ QPtrList<Folder> lstFolders;
+
+protected slots:
+ void slotFolderChanged( QListViewItem* );
+ void slotMessageChanged();
+ void slotRMB( QListViewItem*, const QPoint &, int );
+
+};
+
+#endif
diff --git a/examples/listviews/listviews.pro b/examples/listviews/listviews.pro
new file mode 100644
index 0000000..20abc71
--- /dev/null
+++ b/examples/listviews/listviews.pro
@@ -0,0 +1,11 @@
+TEMPLATE = app
+TARGET = listviews
+
+CONFIG += qt warn_on release
+DEPENDPATH = ../../include
+
+REQUIRES = large-config
+
+HEADERS = listviews.h
+SOURCES = listviews.cpp \
+ main.cpp
diff --git a/examples/listviews/main.cpp b/examples/listviews/main.cpp
new file mode 100644
index 0000000..50089da
--- /dev/null
+++ b/examples/listviews/main.cpp
@@ -0,0 +1,24 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of an example program for Qt. This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "listviews.h"
+#include <qapplication.h>
+
+int main( int argc, char **argv )
+{
+ QApplication a( argc, argv );
+
+ ListViews listViews;
+ listViews.resize( 640, 480 );
+ listViews.setCaption( "Qt Example - Listview" );
+ a.setMainWidget( &listViews );
+ listViews.show();
+
+ return a.exec();
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-25 05:56:26 +0000