summaryrefslogtreecommitdiff
path: root/examples/simple-pim/simple.cpp
blob: 029e71b7fb0b53eef8aed37127fd0ba5730bb090 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
#include <qaction.h> // action
#include <qmenubar.h> // menubar
#include <qtoolbar.h> // toolbar
#include <qlabel.h> // a label
#include <qpushbutton.h> // the header file for the QPushButton
#include <qlayout.h>
#include <qtimer.h> // we use it for the singleShot
#include <qdatetime.h> // for QDate
#include <qtextview.h> // a rich text widget
#include <qdialog.h>
#include <qwhatsthis.h> // for whats this

#include <qpe/qpeapplication.h> // the QPEApplication
#include <qpe/resource.h>
#include <qpe/sound.h>
#include <qpe/qcopenvelope_qws.h>
#include <qpe/datebookmonth.h>
#include <qpe/timestring.h>

#include <opie/oapplicationfactory.h> // a template + macro to save the main method and allow quick launching
#include <opie/otabwidget.h>
#include <opie/owait.h>

#include "simple.h"

/*
 * implementation of simple
 */

/*
 * The factory is used for quicklaunching
 * It needs a constructor ( c'tor ) with at least QWidget, const char* and WFlags as parameter and a static QString appName() matching the TARGET of the .pro
 *
 * Depending on the global quick launch setting this will create
 * either a main method or one for our component plugin system
 */

OPIE_EXPORT_APP( OApplicationFactory<MainWindow> )

MainWindow::MainWindow(QWidget *parent,  const char* name, WFlags fl )
    : QMainWindow( parent, name, fl ) {
    setCaption(tr("My MainWindow") );

    m_desktopChannel = 0;
    m_loading = 0;

    initUI();


    /*
     * Tab widget as central
     */
    m_tab = new OTabWidget(this);

    setCentralWidget( m_tab );

    m_todoView = new PIMListView(m_tab, "Todo view" );
    m_tab->addTab( m_todoView,"todo/TodoList", tr("Todos") );

    m_dateView = new PIMListView(m_tab, "Datebook view" );
    m_tab->addTab( m_dateView, "datebook/DateBook", tr("Events") );

    /* now connect the actions */
    /*
     * we connect the activated to our show
     * and on activation we will show a detailed
     * summary of the record
     */
    connect(m_fire, SIGNAL(activated() ),
            this, SLOT(slotShow() ) );

    /*
     * We will change the date
     */
    connect(m_dateAction, SIGNAL(activated() ),
            this, SLOT(slotDate() ) );

    /*
     * connect the show signal of the PIMListView
     * to a slot to show a dialog
     */
    connect(m_todoView, SIGNAL(showRecord(const OPimRecord&) ),
            this, SLOT(slotShowRecord(const OPimRecord&) ) );
    connect(m_dateView, SIGNAL(showRecord(const OPimRecord&) ),
            this, SLOT(slotShowRecord(const OPimRecord&) ) );

    /*
     * Now comes the important lines of code for this example
     * We do not directly call load but delay loading until
     * all Events are dispatches and handled.
     * SO we will load once our window is mapped to screen
     * to achieve that we use a QTimer::singleShot
     * After 10 milli seconds the timer fires and on TimerEvent
     * out slot slotLoad will be called
     * Remember this a Constructor to construct your object and not
     * to load
     */
    QTimer::singleShot( 10, this, SLOT(slotLoad() ) );
}

MainWindow::~MainWindow() {
    // again nothing to delete because Qt takes care
}


void MainWindow::setDocument( const QString& /*str*/ ) {
}


void MainWindow::initUI() {

    setToolBarsMovable( false );

    QToolBar *menuBarHolder = new QToolBar( this );

    menuBarHolder->setHorizontalStretchable( true );
    QMenuBar *mb = new QMenuBar( menuBarHolder );
    QToolBar *tb = new QToolBar( this );

    QPopupMenu *fileMenu = new QPopupMenu( this );


    QAction *a = new QAction( tr("Quit"), Resource::loadIconSet("quit_icon"),
                              QString::null, 0, this, "quit_action" );
    /*
     * Connect quit to the QApplication quit slot
     */
    connect(a, SIGNAL(activated() ),
            qApp, SLOT(quit() ) );
    a->addTo( fileMenu );

    a =  new QAction(tr("View Current"),
                     Resource::loadIconSet("zoom"),
                     QString::null, 0, this, "view current");
    /* a simple whats this online explanation of out button */
    a->setWhatsThis(tr("Views the current record")  );
    /* or QWhatsThis::add(widget, "description" ); */

    /* see  the power? */
    a->addTo( fileMenu );
    a->addTo( tb );
    m_fire = a;

    a = new QAction(tr("Choose Date"),
                    Resource::loadIconSet("day"),
                    QString::null, 0, this, "choose date" );
    a->addTo( fileMenu );
    a->addTo( tb );
    m_dateAction = a;

    mb->insertItem(tr("File"), fileMenu );

}

void MainWindow::slotLoad() {
    /*
     * There is no real shared access in the PIM API
     * It wasn't finish cause of health problems of one
     * of the authors so we do something fancy and use QCOP
     * the IPC system to get a current copy
     */
    /* NOTES to QCOP: QCOP operates over channels and use QDataStream
     * to send data. You can check if a channel isRegistered or hook
     * yourself to that channel. A Channel is QCString and normally
     * prefix with QPE/ and then the system in example QPE/System,
     * QPE/Desktop a special channel is the application channel
     * it QPE/Application/appname this channel gets created on app
     * startup by QPEApplication. QCOP is asynchronous
     *
     * To send you'll use QCopEnevelope
     *
     */
    /*
     * What we will do is first is get to know if either
     * datebook or todolist are running if so we will kindly
     * asked to save the data for us.
     * If neither are running we can load directly
     */
    if (!QCopChannel::isRegistered("QPE/Application/todolist") &&
        !QCopChannel::isRegistered("QPE/Application/datebook") ) {
        m_db.load();
        m_tb.load();
        return slotLoadForDay( QDate::currentDate() );
    }

    /*
     * prepare our answer machine the QCopChannel
     * QPE/Desktop will send "flushDone(QString)" when
     * the flush is done it emits a signal on receive
     */
    m_desktopChannel = new QCopChannel("QPE/Desktop");
    connect(m_desktopChannel, SIGNAL(received(const QCString&,const QByteArray&) ),
            this, SLOT(slotDesktopReceive(const QCString&,const QByteArray&) ) );
    /* the numberof synced channels will be set to zero */
    m_synced = 0;

    /*
     * We use {} around the QCopEnvelope because it sends its
     * data on destruction of QCopEnvelope with
     */
    /* check again  if not present increment synced*/
    if ( QCopChannel::isRegistered("QPE/Application/todolist") ) {
        QCopEnvelope env("QPE/Application/todolist", "flush()" );
        // env << data; but we do not have any parameters here
    }else
        m_synced++;

    if ( QCopChannel::isRegistered("QPE/Application/datebook") ) {
        QCopEnvelope env("QPE/Application/datebook", "flush()" );
    }else
        m_synced++;

    /* we will provide a wait scrren */
    m_loading = new OWait(this, "wait screen" );
}

void MainWindow::slotDesktopReceive(const QCString& cmd, const QByteArray& data ) {
    /* the bytearray was filled with the QDataStream now
     * we open it read only to get the value(s)
     */
    QDataStream stream(data, IO_ReadOnly );
    /*
     * we're only interested in the flushDone
     */
    if ( cmd == "flushDone(QString)" ) {
        QString appname;
        stream >> appname; // get the first argument out of stream
        if (appname == QString::fromLatin1("datebook") ||
            appname == QString::fromLatin1("todolist") )
            m_synced++;
    }

    /*
     * If we synced both we can go ahead
     * In future this is not needed anymore when we finally
     * implemented X-Ref and other PIM features
     */
    if (m_synced >= 2 ) {
        delete m_loading;
        delete m_desktopChannel;
        /* now we finally can start doing the actual loading */
        m_tb.load();
        m_db.load();
        {
            /* tell the applications to reload */
            QCopEnvelope("QPE/Application/todolist", "reload()");
            QCopEnvelope("QPE/Application/datebook", "reload()");
        }
        slotLoadForDay( QDate::currentDate() );
    }

}

/* overloaded member for shortcoming of libqpe */
void MainWindow::slotLoadForDay(int y, int m, int d) {
    /* year,month, day */
    slotLoadForDay( QDate(y, m, d ) );
}

void MainWindow::slotLoadForDay(const QDate& date) {


    /* all todos for today including the ones without dueDate */
    m_todoView->set( m_tb.effectiveToDos(date, date ) );
    m_dateView->set( m_db.effectiveEvents( date, date ) );
}

/* we want to show the current record */
void MainWindow::slotShow() {
    /* we only added PIMListViews so we can safely cast */
    PIMListView *view = static_cast<PIMListView*>(m_tab->currentWidget() );

    /* ask the view to send a signal */
    view->showCurrentRecord();

}

/* as answer this slot will be called */
void MainWindow::slotShowRecord( const OPimRecord& rec) {
    /* got a parent but still is a toplevel MODAL dialog */
    QDialog* dia = new QDialog(this,"dialog",TRUE );
    QVBoxLayout *box = new QVBoxLayout( dia );
    dia->setCaption( tr("View Record") );


    QTextView *view = new QTextView(dia );
    view->setText( rec.toRichText() );
    box->addWidget( view );
    /*
     * execute via QPEApplication
     * this allows QPEApplication to make a sane decision
     * on the size
     */
    dia->showMaximized();
    QPEApplication::execDialog( dia );
    delete dia;
}


void MainWindow::slotDate() {
    /*
     * called by the action we will show a Popup
     * at the current mouse position with a DateChooser
     * to select the day
     */
    qWarning("slot Date");
    QPopupMenu *menu = new QPopupMenu();
    /* A Month to select a date from TRUE for auto close */
    DateBookMonth *month = new DateBookMonth(menu, 0, true );
    connect(month, SIGNAL(dateClicked(int,int,int) ),
            this, SLOT(slotLoadForDay(int,int,int) ) );

    menu->insertItem( month );

    menu->exec( QCursor::pos() );

    /*
     * we do not need to delete month because
     * we delete its parent menu
     */

    delete menu;
}

/*
 * An anonymous namespace this symbol is only available here
 * so truely private
 */
namespace {
    /* not static cause namespace does that what static would do */
    const int RTTI = 5050;
    /*
     * every ListView got Items. we've special pim items
     * holding ownership and the pointer to a pim record
     * it can't hold a pimrecord directly because this
     * would introduce slicing... any break
     */
    /*
     * A struct is a special class. Everything is public by
     * default.
     */
    struct PIMListViewItem : public QListViewItem {
        /*
         *currently no hierachies are planed for the example
         * so only one constructor with a QListView as parent
         */
        PIMListViewItem( QListView*, OPimRecord* record );
        ~PIMListViewItem();

        /* used by the QListViewItem to easily allow identifiying of different
         * items. Values greater than 1000 should be used */
        int rtti()const;
        OPimRecord* record()const;

    private:
        OPimRecord* m_record;
    };

    PIMListViewItem::PIMListViewItem( QListView *p, OPimRecord* rec )
        : QListViewItem(p), m_record( rec ) {
    }

    PIMListViewItem::~PIMListViewItem() {
        /* we've the onwership so we need to delete it */
        delete m_record;
    }

    OPimRecord* PIMListViewItem::record()const {
        return m_record;
    }

}


PIMListView::PIMListView( QWidget* widget, const char* name, WFlags fl  )
    : QListView(widget, name, fl )
{
    addColumn("Summary");
}

PIMListView::~PIMListView() {

}

void PIMListView::set( OTodoAccess::List list ) {
    /* clear first and then add new items */
    clear();

    OTodoAccess::List::Iterator it;
    for (it = list.begin(); it != list.end(); ++it ) {
        /*
         * make a new item which automatically gets added to the listview
         * and call the copy c'tor to create a new OTodo
         */
        PIMListViewItem *i = new PIMListViewItem(this, new OTodo( *it ) );
        i->setText(0, (*it).summary() );
    }
}

void PIMListView::set( const OEffectiveEvent::ValueList& lst ) {
    /* clear first and then add items */
    clear();

    OEffectiveEvent::ValueList::ConstIterator it;
    for ( it = lst.begin(); it != lst.end(); ++it ) {
        PIMListViewItem *i = new PIMListViewItem(this, new OEvent( (*it).event() ) );
        i->setText( 0, PIMListView::makeString( (*it) ) );
    }

}

void PIMListView::showCurrentRecord() {
    /* it could be possible that their is no currentItem */
    if (!currentItem() )
        return;

    /*
     * we only add PIMListViewItems so it is save
     * to do this case. If this would not be the case
     * use rtti() to check in a switch() case
     */
    PIMListViewItem *item = static_cast<PIMListViewItem*>( currentItem() );

    /* finally you see how to emit a signal */
    emit showRecord( (*item->record() ) );
}

QString PIMListView::makeString( const OEffectiveEvent& ev ) {
    QString str;
    str += ev.description();
    if ( !ev.event().isAllDay() ) {
        if ( ev.startDate() != ev.endDate() ) {
            str += tr("Start ") + TimeString::timeString( ev.event().startDateTime().time() );
            str += " - " + TimeString::longDateString( ev.startDate() );
            str +=  tr("End ") + TimeString::timeString( ev.event().endDateTime().time() );
            str += " - " + TimeString::longDateString( ev.endDate() );
        }else{
            str += tr("Time ") + TimeString::timeString( ev.startTime() );
            str += " - " + TimeString::timeString( ev.endTime() );
        }
    }else
        str += tr(" This is an All-Day Event");

    return str;
}