1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the Qt Designer of the Qt Toolkit.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "connectdialog_p.h"

    43 #include "signalslot_utils_p.h"

    44 

    45 #include <signalslotdialog_p.h>

    46 #include <metadatabase_p.h>

    47 

    48 #include <QtDesigner/QDesignerFormWindowInterface>

    49 #include <QtDesigner/QDesignerFormEditorInterface>

    50 #include <QtDesigner/QDesignerWidgetDataBaseInterface>

    51 #include <QtDesigner/QExtensionManager>

    52 #include <QtDesigner/QDesignerLanguageExtension>

    53 

    54 #include <QtGui/QPushButton>

    55 

    56 QT_BEGIN_NAMESPACE

    57 

    58 namespace {

    59     typedef QList<QListWidgetItem*> ListWidgetItems;

    60 }

    61 

    62 static QString realClassName(QDesignerFormEditorInterface *core, QWidget *widget)

    63 {

    64     QString class_name = QLatin1String(widget->metaObject()->className());

    65     const QDesignerWidgetDataBaseInterface *wdb = core->widgetDataBase();

    66     const int idx = wdb->indexOfObject(widget);

    67     if (idx != -1)

    68         class_name = wdb->item(idx)->name();

    69     return class_name;

    70 }

    71 

    72 static QString widgetLabel(QDesignerFormEditorInterface *core, QWidget *widget)

    73 {

    74     return QString::fromUtf8("%1 (%2)")

    75             .arg(qdesigner_internal::realObjectName(core, widget))

    76             .arg(realClassName(core, widget));

    77 }

    78 

    79 namespace qdesigner_internal {

    80 

    81 ConnectDialog::ConnectDialog(QDesignerFormWindowInterface *formWindow,

    82                              QWidget *source, QWidget *destination,

    83                              QWidget *parent) :

    84     QDialog(parent),

    85     m_source(source),

    86     m_destination(destination),

    87     m_sourceMode(widgetMode(m_source, formWindow)),

    88     m_destinationMode(widgetMode(m_destination, formWindow)),

    89     m_formWindow(formWindow)

    90 {

    91     m_ui.setupUi(this);

    92 

    93     setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);

    94 

    95     connect(m_ui.signalList, SIGNAL(itemClicked(QListWidgetItem*)),

    96             this, SLOT(selectSignal(QListWidgetItem*)));

    97     connect(m_ui.slotList, SIGNAL(itemClicked(QListWidgetItem*)),

    98             this,  SLOT(selectSlot(QListWidgetItem*)));

    99     m_ui.slotList->setEnabled(false);

   100 

   101     QPushButton *ok_button = okButton();

   102     ok_button->setDefault(true);

   103     ok_button->setEnabled(false);

   104 

   105     connect(m_ui.showAllCheckBox, SIGNAL(toggled(bool)), this, SLOT(populateLists()));

   106 

   107     QDesignerFormEditorInterface *core = m_formWindow->core();

   108     m_ui.signalGroupBox->setTitle(widgetLabel(core, source));

   109     m_ui.slotGroupBox->setTitle(widgetLabel(core, destination));

   110 

   111     m_ui.editSignalsButton->setEnabled(m_sourceMode != NormalWidget);

   112     connect(m_ui.editSignalsButton, SIGNAL(clicked()), this, SLOT(editSignals()));

   113 

   114     m_ui.editSlotsButton->setEnabled(m_destinationMode != NormalWidget);

   115     connect(m_ui.editSlotsButton,   SIGNAL(clicked()), this, SLOT(editSlots()));

   116 

   117     populateLists();

   118 }

   119 

   120 ConnectDialog::WidgetMode ConnectDialog::widgetMode(QWidget *w,  QDesignerFormWindowInterface *formWindow)

   121 {

   122     QDesignerFormEditorInterface *core = formWindow->core();

   123     if (qt_extension<QDesignerLanguageExtension*>(core->extensionManager(), core))

   124         return NormalWidget;

   125 

   126     if (w == formWindow || formWindow->mainContainer() == w)

   127         return MainContainer;

   128 

   129     if (isPromoted(formWindow->core(), w))

   130         return PromotedWidget;

   131 

   132     return NormalWidget;

   133 }

   134 

   135 QPushButton *ConnectDialog::okButton()

   136 {

   137     return m_ui.buttonBox->button(QDialogButtonBox::Ok);

   138 }

   139 

   140 void ConnectDialog::setOkButtonEnabled(bool e)

   141 {

   142     okButton()->setEnabled(e);

   143 }

   144 

   145 void ConnectDialog::populateLists()

   146 {

   147     populateSignalList();

   148 }

   149 

   150 void ConnectDialog::setSignalSlot(const QString &signal, const QString &slot)

   151 {

   152     ListWidgetItems sigItems = m_ui.signalList->findItems(signal, Qt::MatchExactly);

   153 

   154     if (sigItems.empty()) {

   155         m_ui.showAllCheckBox->setChecked(true);

   156         sigItems = m_ui.signalList->findItems(signal, Qt::MatchExactly);

   157     }

   158 

   159     if (!sigItems.empty()) {

   160         selectSignal(sigItems.front());

   161         ListWidgetItems slotItems = m_ui.slotList->findItems(slot, Qt::MatchExactly);

   162         if (slotItems.empty()) {

   163             m_ui.showAllCheckBox->setChecked(true);

   164             slotItems = m_ui.slotList->findItems(slot, Qt::MatchExactly);

   165         }

   166         if (!slotItems.empty())

   167             selectSlot(slotItems.front());

   168     }

   169 }

   170 

   171 bool ConnectDialog::showAllSignalsSlots() const

   172 {

   173     return m_ui.showAllCheckBox->isChecked();

   174 }

   175 

   176 void ConnectDialog::setShowAllSignalsSlots(bool showIt)

   177 {

   178     m_ui.showAllCheckBox->setChecked(showIt);

   179 }

   180 

   181 void ConnectDialog::selectSignal(QListWidgetItem *item)

   182 {

   183     if (item) {

   184         m_ui.signalList->setCurrentItem(item);

   185         populateSlotList(item->text());

   186         m_ui.slotList->setEnabled(true);

   187         setOkButtonEnabled(!m_ui.slotList->selectedItems().isEmpty());

   188     } else {

   189         m_ui.signalList->clearSelection();

   190         populateSlotList();

   191         m_ui.slotList->setEnabled(false);

   192         setOkButtonEnabled(false);

   193     }

   194 }

   195 

   196 void ConnectDialog::selectSlot(QListWidgetItem *item)

   197 {

   198     if (item) {

   199         m_ui.slotList->setCurrentItem(item);

   200     } else {

   201         m_ui.slotList->clearSelection();

   202     }

   203     setOkButtonEnabled(true);

   204 }

   205 

   206 QString ConnectDialog::signal() const

   207 {

   208     const ListWidgetItems item_list = m_ui.signalList->selectedItems();

   209     if (item_list.size() != 1)

   210         return QString();

   211     return item_list.at(0)->text();

   212 }

   213 

   214 QString ConnectDialog::slot() const

   215 {

   216     const ListWidgetItems item_list = m_ui.slotList->selectedItems();

   217     if (item_list.size() != 1)

   218         return QString();

   219     return item_list.at(0)->text();

   220 }

   221 

   222 void ConnectDialog::populateSlotList(const QString &signal)

   223 {

   224     QString selectedName;

   225     if (const QListWidgetItem * item = m_ui.slotList->currentItem())

   226         selectedName = item->text();

   227 

   228     m_ui.slotList->clear();

   229 

   230     QMap<QString, QString> memberToClassName = getMatchingSlots(m_formWindow->core(), m_destination, signal, showAllSignalsSlots());

   231 

   232     QFont font = QApplication::font();

   233     font.setItalic(true);

   234     QVariant variantFont = qVariantFromValue(font);

   235 

   236     QListWidgetItem *curr = 0;

   237     QMap<QString, QString>::ConstIterator itMember = memberToClassName.constBegin();

   238     const QMap<QString, QString>::ConstIterator itMemberEnd = memberToClassName.constEnd();

   239     while (itMember != itMemberEnd) {

   240         const QString member = itMember.key();

   241         const bool qt3Slot = isQt3Slot(m_formWindow->core(), m_destination, member);

   242 

   243         QListWidgetItem *item = new QListWidgetItem(m_ui.slotList);

   244         item->setText(member);

   245         if (member == selectedName)

   246             curr = item;

   247 

   248         if (qt3Slot) {

   249             item->setData(Qt::FontRole, variantFont);

   250             item->setData(Qt::ForegroundRole, Qt::red);

   251         }

   252         ++itMember;

   253     }

   254 

   255     if (curr)

   256         m_ui.slotList->setCurrentItem(curr);

   257 

   258     if (m_ui.slotList->selectedItems().isEmpty())

   259         setOkButtonEnabled(false);

   260 }

   261 

   262 void ConnectDialog::populateSignalList()

   263 {

   264     QString selectedName;

   265     if (const QListWidgetItem *item = m_ui.signalList->currentItem())

   266         selectedName = item->text();

   267 

   268     m_ui.signalList->clear();

   269 

   270     QMap<QString, QString> memberToClassName = getSignals(m_formWindow->core(), m_source, showAllSignalsSlots());

   271 

   272     QFont font = QApplication::font();

   273     font.setItalic(true);

   274     QVariant variantFont = qVariantFromValue(font);

   275 

   276     QListWidgetItem *curr = 0;

   277     QMap<QString, QString>::ConstIterator itMember = memberToClassName.constBegin();

   278     const QMap<QString, QString>::ConstIterator itMemberEnd = memberToClassName.constEnd();

   279     while (itMember != itMemberEnd) {

   280         const QString member = itMember.key();

   281         const bool qt3Signal = isQt3Signal(m_formWindow->core(), m_source, member);

   282 

   283         QListWidgetItem *item = new QListWidgetItem(m_ui.signalList);

   284         item->setText(member);

   285         if (!selectedName.isEmpty() && member == selectedName)

   286             curr = item;

   287 

   288         if (qt3Signal) {

   289             item->setData(Qt::FontRole, variantFont);

   290             item->setData(Qt::ForegroundRole, Qt::red);

   291         }

   292         ++itMember;

   293     }

   294 

   295     if (curr) {

   296         m_ui.signalList->setCurrentItem(curr);

   297     } else {

   298         selectedName.clear();

   299     }

   300 

   301     populateSlotList(selectedName);

   302     if (!curr)

   303         m_ui.slotList->setEnabled(false);

   304 }

   305 

   306 void ConnectDialog::editSignals()

   307 {

   308     editSignalsSlots(m_source, m_sourceMode, SignalSlotDialog::FocusSignals);

   309 }

   310 

   311 void ConnectDialog::editSlots()

   312 {

   313     editSignalsSlots(m_destination, m_destinationMode, SignalSlotDialog::FocusSlots);

   314 }

   315 

   316 void ConnectDialog::editSignalsSlots(QWidget *w, WidgetMode mode, int signalSlotDialogModeInt)

   317 {

   318     const SignalSlotDialog::FocusMode signalSlotDialogMode = static_cast<SignalSlotDialog::FocusMode>(signalSlotDialogModeInt);

   319     switch (mode) {

   320     case  NormalWidget:

   321         break;

   322     case MainContainer:

   323         if (SignalSlotDialog::editMetaDataBase(m_formWindow, w, this, signalSlotDialogMode))

   324             populateLists();

   325         break;

   326     case PromotedWidget:

   327         if (SignalSlotDialog::editPromotedClass(m_formWindow->core(), w, this, signalSlotDialogMode))

   328             populateLists();

   329         break;

   330     }

   331 }

   332 

   333 }

   334 

   335 QT_END_NAMESPACE