readmail.cpp

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/**********************************************************************
** Copyright (C) 2001 Trolltech AS.  All rights reserved.
**
** This file is part of Qt Palmtop Environment.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "readmail.h"
#include <qimage.h>
#include <qwhatsthis.h>
#include <qmime.h>
#include <qaction.h>
#include <qpopupmenu.h>
#include <qpe/resource.h>

ReadMail::ReadMail( QWidget* parent,  const char* name, WFlags fl )
        : QMainWindow(parent, name, fl)
{
        plainTxt = FALSE;
        
        init();
        viewAtt = new ViewAtt(0, "View Attatchments");
}

ReadMail::~ReadMail()
{
        delete emailView->mimeSourceFactory();
        delete viewAtt;
}

void ReadMail::init()
{
        setToolBarsMovable(FALSE);
        
        QPopupMenu* mailaction=new QPopupMenu(this);
        
        bar = new QToolBar(this);
        bar->setHorizontalStretchable( TRUE );

        menu = new QMenuBar( bar );

        viewMenu = new QPopupMenu(menu);
        menu->insertItem( tr( "&View" ), viewMenu);

        mailMenu = new QPopupMenu(menu);
        menu->insertItem( tr( "&Mail" ), mailMenu);

        bar = new QToolBar(this);
        
        downloadButton = new QAction( tr( "Download" ), Resource::loadPixmap( "mailit/download" ),QString::null, 0, this, 0 );
        connect(downloadButton, SIGNAL(activated()), this, SLOT(download()) );
        downloadButton->setWhatsThis(tr("Click here to download the selected mail"));
        
                
        previousButton = new QAction( tr( "Previous" ), Resource::loadPixmap( "back" ), QString::null, 0, this, 0 );
        connect( previousButton, SIGNAL( activated() ), this, SLOT( previous() ) );
        previousButton->addTo(bar);
        previousButton->addTo(viewMenu);
        previousButton->setWhatsThis(tr("Read the previous mail in the list"));

        nextButton = new QAction( tr( "Next" ), Resource::loadPixmap( "forward" ), QString::null, 0, this, 0 );
        connect( nextButton, SIGNAL( activated() ), this, SLOT( next() ) );
        nextButton->addTo(bar);
        nextButton->addTo(viewMenu);
        previousButton->setWhatsThis(tr("Read the next mail in the list"));

        attachmentButton = new QAction( tr( "Attatchments" ), Resource::loadPixmap( "mailit/attach" ), QString::null, 0, this, 0 );
        connect( attachmentButton, SIGNAL( activated() ), this,
                SLOT( viewAttachments() ) );
        attachmentButton->addTo(bar);
        attachmentButton->addTo(viewMenu);
        attachmentButton->setWhatsThis(tr("Click here to add attachments to your mail"));
        
        plainTextButton = new QAction( tr( "Text Format" ), Resource::loadPixmap( "DocsIcon" ), QString::null, 0, this, 0, TRUE);
        connect( plainTextButton, SIGNAL( activated() ), this, SLOT( shiftText() ) );
        plainTextButton->addTo(bar);
        plainTextButton->addTo(viewMenu);
        plainTextButton->setWhatsThis(tr("The mail view has 2 modes:\n"
        "<LI><B>RichText</B> shows the mail as HTML with reach features (no standard line breaks)</LI>"
        "<LI><B>Plain</B> shows the mail as standard plain text</LI>"
        "Click here to switch between those view modes" ));

        //reply dependant on viewing inbox
        replyButton = new QToolButton(Resource::loadPixmap("mailit/reply"),tr("reply"),tr("reply to mail"), this,SLOT(reply()),bar);
        QWhatsThis::add(replyButton,tr("Click here to reply to the selected mail\nPress and hold for more options."));
        replyButton->setPopup(mailaction);
                
        replyAllButton = new QAction( tr( "Reply all" ), Resource::loadPixmap( "mailit/reply" ),QString::null, 0, this, 0 );
        connect(replyAllButton, SIGNAL(activated()), this, SLOT(replyAll()));
        replyAllButton->setWhatsThis(tr("Click here to reply to the selected mail to CC: addresses also"));
        replyAllButton->addTo(mailaction);      
        
        forwardButton = new QAction( tr( "Forward" ), Resource::loadPixmap( "mailit/forward" ),
        QString::null, 0, this, 0 );
        connect(forwardButton, SIGNAL(activated()), this, SLOT(forward()));
        forwardButton->setWhatsThis(tr("Click here to forward the selected mail"));
        forwardButton->addTo(mailaction);
        
        
        deleteButton = new QAction( tr( "Delete" ), Resource::loadPixmap( "trash" ), QString::null, 0, this, 0 );
        connect( deleteButton, SIGNAL( activated() ), this, SLOT( deleteItem() ) );
        deleteButton->addTo(bar);
        deleteButton->addTo(mailMenu);
        deleteButton->setWhatsThis(tr("Click here to remove the selected mail"));

        viewMenu->insertItem(Resource::loadPixmap("close"), "Close", this, SLOT(close()));
                
        emailView = new QTextView( this, "emailView" );
        
        setCentralWidget(emailView);

        mime = new QMimeSourceFactory();
        emailView->setMimeSourceFactory(mime);
}

void ReadMail::updateView()
{
        Enclosure *ePtr;
        QString mailStringSize;
        QString text, temp;
        
        mail->read = TRUE;                      //mark as read
        inbox = mail->received;
        
        replyButton->setEnabled(false);
        /*replyButton->removeFrom(bar);
        forwardButton->removeFrom(mailMenu);
        forwardButton->removeFrom(bar);*/
        downloadButton->removeFrom(bar);
        
        //downloadButton->setEnabled(!mail->downloaded);
        
                
        if (inbox == TRUE) {
                replyButton->setEnabled(true);
                /*replyButton->addTo(mailMenu);
                forwardButton->addTo(bar);
                forwardButton->addTo(mailMenu);*/

                                
                if (!mail->downloaded) {
                        
                        downloadButton->addTo(bar);
                        
                        //report currently viewed mail so that it will be
                        //placed first in the queue of new mails to download
                        emit viewingMail(mail);
                        
                        double mailSize = (double) mail->size;
                        if (mailSize < 1024) {
                                mailStringSize.setNum(mailSize);
                                mailStringSize += " Bytes";
                        } else if (mailSize < 1024*1024) {
                                mailStringSize.setNum( (mailSize / 1024), 'g', 2 );
                                mailStringSize += " Kb";
                        } else {
                                mailStringSize.setNum( (mailSize / (1024*1024)), 'g', 3);
                                mailStringSize += " Mb";
                        }
                }
        }

        QMimeSourceFactory *mime = emailView->mimeSourceFactory();
        
        if (! plainTxt) {                                               //use RichText, inline pics etc.
                emailView->setTextFormat(QTextView::RichText);
                text = "<b><big><center><font color=\"blue\">" + mail->subject
                        +"</font></center></big></b><br>";
                text += "<b>From: </b>" + mail->from + " <i>" +
                        mail->fromMail + "</i><br>";
        
                text +="<b>To: </b>";
                for (QStringList::Iterator it = mail->recipients.begin();
                        it != mail->recipients.end(); ++it ) {
                        text += *it + " ";
                }

                text +="<br><b>CC: </b>";
                for (QStringList::Iterator it = mail->carbonCopies.begin();
                        it != mail->carbonCopies.end(); ++it ) {
                        text += *it + " ";
                }
                
                text += "<br>"  + mail->date;
        
                if (mail->files.count() > 0) {
                        text += "<br><b>Attatchments: </b>";
                        
                        for ( ePtr=mail->files.first(); ePtr != 0; ePtr=mail->files.next() ) {
                                text += ePtr->originalName + " ";
                        }
                        text += "<hr><br>" + mail->body;
                
                        if (inbox) {
                                for ( ePtr=mail->files.first(); ePtr != 0; ePtr=mail->files.next() ) {

                                        text += "<br><hr><b>Attatchment: </b>" +
                                                ePtr->originalName + "<hr>";
                                
                                        if (ePtr->contentType == "TEXT") {
                                                QFile f(ePtr->path + ePtr->name);
                                        
                                                if (f.open(IO_ReadOnly) ) {
                                                        QTextStream t(&f);
                                                        temp = t.read();
                                                        text += temp + "<br>";
                                                        f.close();
                                                } else {
                                                        text += "<b>Could not locate file</b><br>";
                                                }
                                        
                                        }
                                        if (ePtr->contentType == "IMAGE") {
//                                              temp.setNum(emailView->width());        //get display width
//                                              text += "<img width=" + temp +" src =""" +
//                                                      ePtr->originalName + """> </img>";
                                                text += "<img src =""" +
                                                        ePtr->originalName + """> </img>";
                                                mime->setPixmap(ePtr->originalName, QPixmap( (ePtr->path + ePtr->name) ));
                                        }
                                }
                        }
                } else {
                        if (mail->downloaded || !inbox) {
                                text += "<hr><br>" + mail->body;
                        } else {
                                text += "<hr><br><b> Awaiting download </b><br>";
                                text += "Size of mail: " + mailStringSize;
                        }
                }
                emailView->setText(text);
        } else {                                                                                // show plain txt mail
                emailView->setTextFormat(QTextView::PlainText);
                text = "Subject: " + mail->subject + "\n";
                text += "From: " + mail->from + " " + mail->fromMail + "\n";
                text += "To: ";
                for (QStringList::Iterator it = mail->recipients.begin();
                        it != mail->recipients.end(); ++it ) {
                        text += *it + " ";
                }
                
                text += "\nCC: ";
                for (QStringList::Iterator it = mail->carbonCopies.begin();
                        it != mail->carbonCopies.end(); ++it ) {
                        text += *it + " ";
                }

                                
                text += "\nDate: " + mail->date + "\n";
                if (mail->files.count() > 0) {
                        text += "Attatchments: ";
                        for ( ePtr=mail->files.first(); ePtr != 0; ePtr=mail->files.next() ) {
                                text += ePtr->originalName + " ";
                        }
                        text += "\n\n";
                } else text += "\n";
                
                if (!inbox) {
                        text += mail->body;
                } else if (mail->downloaded) {
                        text += mail->bodyPlain;
                } else {
                        text += "\nAwaiting download\n";
                        text += "Size of mail: " + mailStringSize;
                }
                
                emailView->setText(text);
        }
        
        if (mail->files.count() == 0)
                attachmentButton->setEnabled(FALSE);
        else attachmentButton->setEnabled(TRUE);
        
        setCaption("Examining mail: " + mail->subject);
}

//update view with current EmailListItem (item)
void ReadMail::update(QListView *thisView, Email *mailIn)
{
        view = thisView;
        item = (EmailListItem *) view->selectedItem();
        mail = mailIn;
        updateView();
        updateButtons();        
}

void ReadMail::mailUpdated(Email *mailIn)
{
        if (mailIn == mail) {
                updateView();
        } else {
                updateButtons();
        }
}

void ReadMail::close()
{
        emit cancelView();
}

//gets next item in listview, exits if there is no next
void ReadMail::next()
{
        item = (EmailListItem *) item->nextSibling();
        if (item != NULL) {
                mail = item->getMail();
                updateView();
        }
        updateButtons();
}

//gets previous item in listview, exits if there is no previous
void ReadMail::previous()
{
        item = (EmailListItem *) item->itemAbove();
        if (item != NULL) {
                mail = item->getMail();
                updateView();
        }
        updateButtons();
}

//deletes item, tries bringing up next or previous, exits if unsucessful
void ReadMail::deleteItem()
{
        EmailListItem *temp = item;
        temp = (EmailListItem *) item->nextSibling();   //trybelow
        if (temp == NULL)
                temp = (EmailListItem *) item->itemAbove(); //try above
        
        emit removeItem(item, inbox);
        
        item = temp;
        if (item != NULL) {                                                             //more items in list
                mail = item->getMail();
                updateView();
                updateButtons();
        } else close();                                                         //no more items to see
}

void ReadMail::updateButtons()
{
        EmailListItem *temp;
        
        temp = item;
        if ((EmailListItem *) temp->nextSibling() == NULL)
                nextButton->setEnabled(FALSE);
        else nextButton->setEnabled(TRUE);
        
        temp = item;
        if ((EmailListItem *) temp->itemAbove() == NULL)
                previousButton->setEnabled(FALSE);
        else previousButton->setEnabled(TRUE);
}

void ReadMail::shiftText()
{
        plainTxt = ! plainTxt;
        updateView();
}

void ReadMail::viewAttachments()
{
        viewAtt->update(mail, inbox);
        viewAtt->showMaximized();
}

void ReadMail::reply()
{
        emit replyRequested(*mail, (bool&)FALSE);
}

void ReadMail::replyAll()
{
        emit replyRequested(*mail, (bool&)TRUE);
}

void ReadMail::forward()
{
        emit forwardRequested(*mail);
}

void ReadMail::download()
{
        emit download(mail);
}

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