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-rw-r--r--libopie/big-screen/omodalhelper.cpp160
-rw-r--r--libopie/big-screen/omodalhelper.h121
2 files changed, 263 insertions, 18 deletions
diff --git a/libopie/big-screen/omodalhelper.cpp b/libopie/big-screen/omodalhelper.cpp
new file mode 100644
index 0000000..e3d1c70
--- a/dev/null
+++ b/libopie/big-screen/omodalhelper.cpp
@@ -0,0 +1,160 @@
+/*
+               =. This file is part of the OPIE Project
+             .=l. Copyright (c) 2003 hOlgAr <zecke@handhelds.org>
+           .>+-=
+ _;:,     .>    :=|. This library is free software; you can
+.> <`_,   >  .   <= redistribute it and/or modify it under
+:`=1 )Y*s>-.--   : the terms of the GNU Library General Public
+.="- .-=="i,     .._ License as published by the Free Software
+ - .   .-<_>     .<> Foundation; either version 2 of the License,
+     ._= =}       : or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s. 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.
+
+*/
+
+#include <qpushbutton.h>
+#include <qvbox.h>
+#include <qlayout.h>
+#include <qlabel.h>
+
+#include "omodalhelper.h"
+
+
+/* SIgnal handling */
+OModalHelperSignal::OModalHelperSignal( OModalHelperBase* base, QObject* parent )
+ : QObject( parent, "OModal Helper Signal" ), m_base( base ) {
+}
+
+OModalHelperSignal::~OModalHelperSignal() {
+ /* special the ancestor deletes its creator */
+ delete m_base;
+}
+
+
+/* Helper Controler */
+/*
+ * the dialogs signal will be slotted here
+ * and we will call into m_base
+ */
+OModalHelperControler::OModalHelperControler( OModalHelperBase* base, QObject* parent )
+ : QObject(parent, "OModal Helper Controler" ), m_base( base ), m_dia( 0 ), m_id( -1 )
+{
+}
+
+TransactionID OModalHelperControler::transactionID()const {
+ return m_id;
+}
+
+void OModalHelperControler::setTransactionID( TransactionID id ) {
+ m_dia = 0;
+ m_id = id;
+}
+
+QDialog* OModalHelperControler::dialog()const {
+ return m_dia;
+}
+
+/*
+ * If we're in the New mode we will map the QDialog
+ * to the TransactionID
+ */
+void OModalHelperControler::done( int result ) {
+ if ( sender() && !sender()->isA("OModalQueuedDialog") )
+ m_dia = static_cast<QDialog*>( sender() );
+
+ m_base->done( m_id );
+}
+
+void OModalHelperControler::next() {
+ m_base->next( m_id );
+}
+
+void OModalHelperControler::prev() {
+ m_base->prev( m_id );
+}
+
+/* The Queued Dialog inclusive QueuedBar */
+struct OModalQueueBar : public QHBox {
+ QPushButton* next;
+ QPushButton* prev;
+ QLabel * label;
+
+ OModalQueueBar( QWidget* parent );
+ void setText( const QString& str );
+};
+
+OModalQueueBar::OModalQueueBar( QWidget* parent )
+ : QWidget( parent, "OModal Queue Bar" ) {
+ prev = new QPushButton( this );
+ prev->setText( OModalQueuedDialog::tr("Prev") );
+
+ label = new QLabel(this);
+
+ next = new QPushButton( this );
+ next->setText( OModalQueuedDialog::tr("Next") );
+}
+
+void OModalQueueBar::setText( const QString& str ) {
+ label->setText( str );
+}
+
+
+OModalQueuedDialog::OModalQueuedDialog( QDialog* mainWidget )
+ : QDialog(0, "OModal Queued Dialog" )
+{
+ QVBoxLayout *lay = new QVBoxLayout( this );
+
+ m_bar = new OModalQueueBar( this );
+ lay->addWidget( m_bar );
+
+ m_center = mainWidget;
+ m_center->reparent(this, 0, QPoint(0, 0) );
+ lay->addWidget( m_center );
+
+
+ connect(m_bar->next, SIGNAL(clicked() ), this,
+ SIGNAL(next() ) );
+ connect(m_bar->prev, SIGNAL(clicked() ), this,
+ SIGNAL(prev() ) );
+
+}
+
+OModalQueuedDialog::~OModalQueuedDialog() {
+}
+
+QDialog* OModalQueuedDialog::centerDialog()const {
+ return m_center;
+}
+
+void OModalQueuedDialog::setQueueBarEnabled( bool b) {
+ /* in Qt3 use setEnabled( bool ) */
+ if (b)
+ m_bar->show();
+ else
+ m_bar->hide();
+}
+
+void OModalQueuedDialog::setRecord( int record, int count ) {
+ if (!record && !count ) {
+ hide();
+ return;
+ }else
+ show();
+
+ m_bar->setText( tr("Editing record %1 out of %2",
+ "Shows the current edited record out of an array of records").arg( record ). arg( count ) );
+}
diff --git a/libopie/big-screen/omodalhelper.h b/libopie/big-screen/omodalhelper.h
index c483403..bc20d10 100644
--- a/libopie/big-screen/omodalhelper.h
+++ b/libopie/big-screen/omodalhelper.h
@@ -9,312 +9,397 @@
 - .   .-<_>     .<> Foundation; either version 2 of the License,
     ._= =}       : or (at your option) any later version.
    .%`+i>       _;_.
    .i_,=:_.      -<s. 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 HAZE_OMODAL_HELPER_H
#define HAZE_OMODAL_HELPER_H
#include <qdialog.h>
#include <qwidget.h>
#include <qvaluelist.h>
#include <qmap.h>
typedef int TransactionID;
class OModalHelperControler;
class OModalHelperSignal;
class QDialog;
struct OModalHelperBase {
virtual void done( TransactionID ) = 0;
virtual void next( TransactionID ) = 0;
virtual void prev( TransactionID ) = 0;
};
/**
* Modality sucks! ;) But it is easy to work with
* do exec() on a dialog and you know everything is funky.
* You only need to have one Dialog loaded and so on.
* This class helps you to work like with modality and help
* you to keep things in sync
* It's a template class but it sends signals once one Item is ready
* the signals contains the status and id of the item and then you
- * can fetch it.
+ * need fetch it.
+ * Handled Records will stay available until the first call to retrieve
+ * either the record via the TransactionID or via the QValueList<Record>. Note
+ * that most functions do not take handled records into account.
* Also if you edit an record external you can tell this class and it'll
* call the merge() function of your widget to maybe merge in these changes.
* It also supports multiple modes. Either it can create new dialogs
* for each item or it can queue them depending on your usage. But it is
* so smart that if only one item is shown that the queue bar is not shown
* See the example for simple usage.
*
* @short helps to life without modaility
* @author hOlgAr
* @version 0.01
*/
template<class Dialog, class Record, typename Id = int>
class OModalHelper : private OModalHelperBase{
friend class OModalHelperSignal;
friend class OModalHelperControler;
public:
typedef QValueList<Record> RecordList;
typedef QMap<Id, Record> IdMap;
typedef QMap<TransactionID, Id> TransactionMap;
typedef QMap<QDialog*, TransactionID> DialogMap
enum Mode { Queue, New };
OModalHelper(enum Mode mode, QObject* parnet );
bool handles( Id id)const;
+ TransactionID transactionID( Id id)const;
void cancel();
void cancel( TransactionID );
void connectDone( QObject* rec, const char* slot );
void connectAccepted( QObject* rec, const char* slot );
void connectRejected( QObject* rec, const char* slot );
TransactionID handle( Id id, const Record& rec = Record() );
void edited( TransactionID, int what, const QString& data );
Record record( TransactionID )const;
RecordList done()const;
private:
- virtual void done( TransactionID, QDialog* );
- virtual void next( TransactionID, OModalHelperControler * );
- virtual void prev( TransactionID, OModalHelperControler * );
+ virtual void done( TransactionID );
+ virtual void next( TransactionID );
+ virtual void prev( TransactionID );
Record nextRecord( TransactionID, int * )const;
Record prevRecord( TransactionID, int * )const;
private:
OModalHelperDialog *queuedDialog()const; // generate or recycle
OModalHelperDialog *m_dialog;
OModalHelperSignal *m_signal; // our signal
OModalHelperControler *m_controler;
IdMap m_ids; // maps ids (uids) to a record
+ IdMap m_doneIds;
TransactionMap m_transactions; // activate transactions
TransactionMap m_done; // done and waiting for getting picked
DialogMap m_editing; // only used for New Mode
enum Mode m_mode; // the mode we're in
};
/* ### FIXME use namespace with Qt3 */
/*
* A note on flow. The Signal is used for QT Signals when
* a record is done.
* There is either one controler and this controler slot will
* be connected to a dialog signal.
* In Queue we get the next and prev signals and call the Helper.
* this then changes the Record of the dialog and sets the transactionId
* of the controler.
* For the new mode
*
*/
class OModalHelperSignal : public QObject {
Q_OBJECT
public:
OModalHelperSignal(OModalHelperBase* base, QObject* parent);
+ ~OModalHelperSignal();
signals:
done( int status, TransactionID transaction );
accepted( TransactionID transaction );
rejected( TransactionID transaction );
private:
OModalHelperBase* m_base;
};
class OModalHelperControler : public QObject {
Q_OBJECT
public:
OModalHelperControler( OModalHelperBase* , QObject* parent);
virtual TransactionID transactionID()const;
void setTransactionID( TransactionID id );
QDialog* dialog()const;
public slots:
- virtual done(int result );
+ virtual void done(int result );
+ virtual void next();
+ virtual void prev();
private:
QDialog *m_dia;
TransactionID m_id;
OModalHelperBase *m_base;
}
-class OModalQueueBar;
+struct OModalQueueBar;
class OModalQueuedDialog : public QDialog {
Q_OBJECT
public:
- OModalQueuedDialog(QWidget *mainWidget);
+ OModalQueuedDialog(QDialog *mainWidget);
~OModalQueuedDialog();
QDialog* centerDialog()const;
void setQueueBarEnabled( bool = true );
void setRecord( int record, int count );
+
+signals:
+ void next();
+ void prev();
+
private:
OModalQueueBar *m_bar;
+ QDialog *m_center;
};
/*
* Tcpp Template Implementation
*/
/**
* This is the simple Template c'tor. It takes the mode
* this helper should operate in and the parent object.
* This helper will be deleted when the parent gets deleted
* or you delete it yourself.
*
* @param mode The mode this dialog should be in
* @param parent The parent QObject of this helper.
*/
template<class Dialog, class Record, typename Id>
OModalHelper<Dialog, Record, Id>::OModalHelper( enum Mode mode, QObject* parent ) {
m_mode = mode;
m_signal = new OModalHelperSignal( this, parent );
m_controler = new OModalHelperControler( this, m_signal );
+
}
/**
* This functions looks for your record and sees if it is
- * handled with this helper. Note that done and edited records
- * will not be returned. But if you edit an already edited record
- * the done record will be used
+ * handled with this helper. Note that done records
+ * will not be returned.
*
* @return true if the record is currenlty edited otherwise false
*
* @param Id The id which might be handled
*/
template<class Dialog, class Record, typename Id>
bool OModalHelper<Dialog, Record, Id>::handles( Id id )const {
if ( m_transactions.isEmpty() )
return false;
TransactionMap::ConstIterator it = m_transactions.begin();
for ( ; it != m_transactions.end(); ++it )
if ( it.data() == id )
return true;
return false;
}
+
+/**
+ * just like handles( Id ) but returns the TransactionId
+ */
+template<class Dialog, class Record, typename Id>
+TransactionID OModalHelper<Dialog, Record, Id>::transactionID( Id id)const {
+ if ( m_transactions.isEmpty() )
+ return false;
+
+ TransactionMap::ConstIterator it = m_transactions.begin();
+ for ( ; it != m_transactions.end(); ++it )
+ if ( it.data() == id )
+ return true;
+
+ return false;
+}
+
/**
* Cancel will cancel all current operations and clear the list
* of done operations as well.
+ * This also clears all done operations you did not popped
*/
template<class Dialog, class Record, typename Id>
void OModalHelper<Dialog, Record, Id>::cancel() {
m_ids.clear();
+ m_doneIds.clear();
m_done.clear();
m_transactions.clear();
/* we also need to remove the QDialogs */
/* and hide the queue dialog if present */
if (m_mode == New && !m_editing.isEmpty() ) {
for (DialogMap::Iterator it = m_editing.begin(); it != m_editing.end(); ++it )
delete it.key();
m_editing.clear();
}else if (m_dialog )
queuedDialog()->setRecord( 0, 0 );
-
+ m_controler->setTransactionID( -1 );
}
/**
* This cancels editing of the record behind the Transaction Number
* Note that if editing is already done it will also be removed from this list
*/
template<class Dialog, class Record, typename Id>
void OModalHelper::cancel( TransactionID tid ) {
/* wrong tid */
if (!m_transactions.contains( tid ) && !m_done.contains( tid) )
return;
if (m_mode == New )
/* reverse map eek */
for (DialogMap::Iterator it = m_editing.begin(); it != m_editing.end(); ++it )
if ( it.data() == tid ) {
it.key()->hide();
delete it.key();
it = m_editing.remove( it );
break;
}
else if ( m_transactions.contains( tid ) ) {
/* need to stop editing from the queue block */
/* if we're currently editing actiavte the previous */
#if 0
if (tid == m_controler->transactionID() ) {
}
#endif
/* now either activate the previous again or hide */
if (! m_transactions.count() -1 )
queuedDialog()->setRecord( 0, 0 );
else {
int pos;
Record rec = prevRecord( tid, &pos );
static_cast<Dialog*>( queuedDialog()->centerDialog() )->setRecord( rec );
queuedDialog()->setRecord( pos, m_transactions.count() );
+ m_controler->setTransactionID( tid );
}
}
- /* now remove from the various maps */
- m_ids.remove( m_transactions.contains( tid ) ? m_transactions[tid] : m_done[tid ] );
+ /* now remove from the various maps done and currently editing map*/
+ if (m_transactions.contains( tid ) )
+ m_ids.remove( m_transactions[tid] );
+ if (m_done.contains( tid ) )
+ m_doneIds.remove( m_done[tid ] );
+
m_done.remove( tid );
m_transactions.remove( tid );
}
/**
* Connect to the done Signal. SIGNAL( done(int, TransactionID ) )
* This signal gets emitted whenever a Record was accepted or rejected
*
* @param rec The object where the slot belongs to
* @param slot The slot which should be called. See the needed parameter above
*/
template<class Dialog, class Record, typename Id>
void OModalHelper<Dialog, Record, Id>::connectDone( QObject* rec, const char* slot ) {
QObject::connect(m_signal, SIGNAL(done(int, TransactionID) ),
rec, slot );
}
/**
- * Connect to the accepted Signal. SIGNAL( done(int, TransactionID ) )
- * This signal gets emitted whenever a Record was accepted or rejected
+ * Connect to the accepted Signal. SIGNAL( accepted(TransactionID ) )
+ * This signal gets emitted whenever a Record was accepted
*
* @param rec The object where the slot belongs to
* @param slot The slot which should be called. See the needed parameter above
*/
template<class Dialog, class Record, typename Id>
-void OModalHelper<Dialog, Record, Id>::( QObject* rec, const char* slot ) {
-
+void OModalHelper<Dialog, Record, Id>::connectAccepted( QObject* rec, const char* slot ) {
+ QObject::connect(m_signal, SIGNAL(accepted(TransactionID) ),
+ rec, slot );
}
+/**
+ * Same as the accepted method but this one gets emitted if the dialog
+ * got rejected.
+ * SIGNAL( rejected(TransactionID) )
+ *
+ * @param rec The QObject of the slot
+ * @param slot The slot make sure the signature is correct
+ */
+template<class Dialog, class Record, typename Id>
+void OModalHelper<Dialog, Record, Id>::connectRejected( QObject* rec, const char* slot ) {
+ QObject::connect(m_signal, SIGNAL(rejected(TransactionID) ),
+ rec, slot );
+}
+/**
+ * Tell the helper to handle a record. If the record is currently handled
+ * it will be made active.
+ * Already handled record which are waiting getting popped are not taken into account
+ * Otherwise this helpers make the record editable.
+ * The record supplied needs to have a valid copy operator and constructor.
+ * In the case where the record is already present the parameter gets discarded.
+ * If you want the new record to be taken you need to cancel the Transaction first
+ *
+ * @param id The Identification of the Record. For PIM it would uid()
+ * @param rec The record we want to be edited
+ *
+ * @returns This functions returns the TransactionId assigned to the record
+ *
+ */
template<class Dialog, class Record, typename Id>
-void OModalHelper<Dialog, Record, Id>::( QObject* rec, const char* slot ) {
+TransactionID OModalHelper<Dialog, Record, Id>::handle( Id id, const Record& rec ) {
+ static TransactionID t_id = 0;
+ t_id++;
+ /*
+ *this method consists out of two parts divided each into New and Queued Mode.
+ * Either we have the dialog already, in this case we need to highlight the widget
+ * Or we need to add it.
+ */
+ TransactionID tid = 0;
+ /* we already have the record lets see if it was done or not */
+ if ( m_ids.contains( id ) ) {
+ }
+
+ /* fall through if the record is in the done list */
+ tid = t_id;
+
+
+ return;
}
+
#endif