[2] | 1 | /****************************************************************************
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| 2 | **
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[846] | 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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[561] | 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation ([email protected])
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[2] | 6 | **
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| 7 | ** This file is part of the QtSCriptTools module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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[561] | 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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[2] | 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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[561] | 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at [email protected].
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[2] | 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #include "qscriptdebuggerlocalswidget_p.h"
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| 43 | #include "qscriptdebuggerlocalswidgetinterface_p_p.h"
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| 44 | #include "qscriptdebuggerlocalsmodel_p.h"
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| 45 | #include "qscriptcompletionproviderinterface_p.h"
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| 46 | #include "qscriptcompletiontaskinterface_p.h"
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| 47 |
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| 48 | #include <QtCore/qdebug.h>
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| 49 | #include <QtGui/qheaderview.h>
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| 50 | #include <QtGui/qcompleter.h>
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| 51 | #include <QtGui/qstringlistmodel.h>
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| 52 | #include <QtGui/qtreeview.h>
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| 53 | #include <QtGui/qboxlayout.h>
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| 54 | #include <QtGui/qsortfilterproxymodel.h>
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| 55 | #include <QtGui/qlineedit.h>
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| 56 | #include <QtGui/qstyleditemdelegate.h>
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| 57 | #include <QtGui/qevent.h>
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| 58 | #include <QtGui/qmessagebox.h>
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| 59 | #include <QtScript/qscriptengine.h>
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| 60 |
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| 61 | QT_BEGIN_NAMESPACE
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| 62 |
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| 63 | namespace {
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| 64 |
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| 65 | class CustomProxyModel : public QSortFilterProxyModel
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| 66 | {
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| 67 | public:
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| 68 | CustomProxyModel(QObject *parent = 0)
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| 69 | : QSortFilterProxyModel(parent) {}
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| 70 |
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| 71 | bool hasChildren(const QModelIndex &parent) const
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| 72 | {
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[846] | 73 | if (!sourceModel())
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| 74 | return false;
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[2] | 75 | QModelIndex sourceParent = mapToSource(parent);
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| 76 | if (parent.isValid() && !sourceParent.isValid())
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| 77 | return false;
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| 78 | return sourceModel()->hasChildren(sourceParent);
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| 79 | }
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| 80 | };
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| 81 |
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| 82 | } // namespace
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| 83 |
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| 84 | class QScriptDebuggerLocalsWidgetPrivate
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| 85 | : public QScriptDebuggerLocalsWidgetInterfacePrivate
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| 86 | {
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| 87 | Q_DECLARE_PUBLIC(QScriptDebuggerLocalsWidget)
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| 88 | public:
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| 89 | QScriptDebuggerLocalsWidgetPrivate();
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| 90 | ~QScriptDebuggerLocalsWidgetPrivate();
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| 91 |
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| 92 | void complete(QLineEdit *le);
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| 93 |
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| 94 | // private slots
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| 95 | void _q_onCompletionTaskFinished();
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| 96 | void _q_insertCompletion(const QString &text);
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| 97 | void _q_expandIndex(const QModelIndex &index);
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| 98 |
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| 99 | QTreeView *view;
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| 100 | QPointer<QLineEdit> completingEditor;
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| 101 | QCompleter *completer;
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| 102 | CustomProxyModel *proxy;
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| 103 | };
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| 104 |
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| 105 | QScriptDebuggerLocalsWidgetPrivate::QScriptDebuggerLocalsWidgetPrivate()
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| 106 | {
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| 107 | completingEditor = 0;
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| 108 | completer = 0;
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| 109 | proxy = 0;
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| 110 | }
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| 111 |
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| 112 | QScriptDebuggerLocalsWidgetPrivate::~QScriptDebuggerLocalsWidgetPrivate()
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| 113 | {
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| 114 | }
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| 115 |
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| 116 | void QScriptDebuggerLocalsWidgetPrivate::complete(QLineEdit *le)
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| 117 | {
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| 118 | Q_Q(QScriptDebuggerLocalsWidget);
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| 119 | QScriptCompletionTaskInterface *task = 0;
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| 120 | // ### need to pass the current frame #
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| 121 | task = completionProvider->createCompletionTask(
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| 122 | le->text(), le->cursorPosition(),
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| 123 | q->localsModel()->frameIndex(), /*options=*/0);
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| 124 | QObject::connect(task, SIGNAL(finished()),
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| 125 | q, SLOT(_q_onCompletionTaskFinished()));
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| 126 | completingEditor = le;
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| 127 | task->start();
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| 128 | }
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| 129 |
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| 130 | void QScriptDebuggerLocalsWidgetPrivate::_q_onCompletionTaskFinished()
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| 131 | {
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| 132 | Q_Q(QScriptDebuggerLocalsWidget);
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| 133 | QScriptCompletionTaskInterface *task = 0;
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| 134 | task = qobject_cast<QScriptCompletionTaskInterface*>(q_func()->sender());
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| 135 | if (!completingEditor) {
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| 136 | task->deleteLater();
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| 137 | return;
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| 138 | }
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| 139 |
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| 140 | if (task->resultCount() == 1) {
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| 141 | // do the completion right away
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| 142 | QString completion = task->resultAt(0);
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| 143 | completion.append(task->appendix());
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| 144 | QString tmp = completingEditor->text();
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| 145 | tmp.remove(task->position(), task->length());
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| 146 | tmp.insert(task->position(), completion);
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| 147 | completingEditor->setText(tmp);
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| 148 | completingEditor = 0;
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| 149 | } else if (task->resultCount() > 1) {
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| 150 | // popup completion
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| 151 | if (!completer) {
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| 152 | completer = new QCompleter(q);
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| 153 | completer->setCompletionMode(QCompleter::PopupCompletion);
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| 154 | completer->setCaseSensitivity(Qt::CaseSensitive);
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| 155 | completer->setWrapAround(false);
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| 156 | QObject::connect(completer, SIGNAL(activated(QString)),
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| 157 | q, SLOT(_q_insertCompletion(QString)));
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| 158 | }
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| 159 | QStringListModel *model = qobject_cast<QStringListModel*>(completer->model());
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| 160 | if (!model) {
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| 161 | model = new QStringListModel(q);
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| 162 | completer->setModel(model);
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| 163 | }
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| 164 | QStringList strings;
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| 165 | for (int i = 0; i < task->resultCount(); ++i)
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| 166 | strings.append(task->resultAt(i));
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| 167 | model->setStringList(strings);
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| 168 | QString prefix = completingEditor->text().mid(task->position(), task->length());
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| 169 | completer->setCompletionPrefix(prefix);
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| 170 | completingEditor->setCompleter(completer);
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| 171 | // we want to handle the insertion ourselves
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| 172 | QObject::disconnect(completer, 0, completingEditor, 0);
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| 173 | completer->complete();
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| 174 | }
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| 175 | task->deleteLater();
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| 176 | }
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| 177 |
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| 178 | void QScriptDebuggerLocalsWidgetPrivate::_q_insertCompletion(const QString &text)
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| 179 | {
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| 180 | Q_ASSERT(completingEditor != 0);
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| 181 | QString tmp = completingEditor->text();
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| 182 | tmp.insert(completingEditor->cursorPosition(), text.mid(completer->completionPrefix().length()));
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| 183 | completingEditor->setText(tmp);
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| 184 | completingEditor = 0;
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| 185 | }
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| 186 |
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| 187 | void QScriptDebuggerLocalsWidgetPrivate::_q_expandIndex(const QModelIndex &index)
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| 188 | {
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[846] | 189 | if (view->model() == index.model())
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| 190 | view->expand(proxy->mapFromSource(index));
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[2] | 191 | }
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| 192 |
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| 193 | class QScriptDebuggerLocalsItemDelegate
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| 194 | : public QStyledItemDelegate
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| 195 | {
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| 196 | Q_OBJECT
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| 197 | public:
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| 198 | QScriptDebuggerLocalsItemDelegate(QObject *parent = 0);
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| 199 |
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| 200 | QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const;
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| 201 | void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const;
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| 202 | void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const;
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| 203 |
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| 204 | bool eventFilter(QObject *watched, QEvent *event);
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| 205 |
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| 206 | private Q_SLOTS:
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| 207 | void validateInput(const QString &text)
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| 208 | {
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| 209 | QWidget *editor = qobject_cast<QWidget*>(sender());
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| 210 | QPalette pal = editor->palette();
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| 211 | QColor col;
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| 212 | bool ok = (QScriptEngine::checkSyntax(text).state() == QScriptSyntaxCheckResult::Valid);
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| 213 | if (ok) {
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| 214 | col = Qt::white;
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| 215 | } else {
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| 216 | QScriptSyntaxCheckResult result = QScriptEngine::checkSyntax(
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| 217 | text + QLatin1Char('\n'));
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| 218 | if (result.state() == QScriptSyntaxCheckResult::Intermediate)
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| 219 | col = QColor(255, 240, 192);
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| 220 | else
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| 221 | col = QColor(255, 102, 102);
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| 222 | }
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| 223 | pal.setColor(QPalette::Active, QPalette::Base, col);
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| 224 | editor->setPalette(pal);
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| 225 | }
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| 226 |
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| 227 | private:
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| 228 | static const QWidget *widget(const QStyleOptionViewItem &option)
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| 229 | {
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| 230 | if (const QStyleOptionViewItemV3 *v3 = qstyleoption_cast<const QStyleOptionViewItemV3 *>(&option))
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| 231 | return v3->widget;
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| 232 | return 0;
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| 233 | }
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| 234 | };
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| 235 |
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| 236 | QScriptDebuggerLocalsItemDelegate::QScriptDebuggerLocalsItemDelegate(
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| 237 | QObject *parent)
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| 238 | : QStyledItemDelegate(parent)
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| 239 | {
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| 240 | }
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| 241 |
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| 242 | QWidget *QScriptDebuggerLocalsItemDelegate::createEditor(
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| 243 | QWidget *parent, const QStyleOptionViewItem &option,
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| 244 | const QModelIndex &index) const
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| 245 | {
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| 246 | QWidget *editor = QStyledItemDelegate::createEditor(parent, option, index);
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| 247 | if (index.column() == 1) {
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| 248 | // value
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| 249 | QLineEdit *le = qobject_cast<QLineEdit*>(editor);
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| 250 | if (le) {
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| 251 | QObject::connect(le, SIGNAL(textEdited(QString)),
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| 252 | this, SLOT(validateInput(QString)));
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| 253 | }
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| 254 | }
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| 255 | return editor;
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| 256 | }
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| 257 |
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| 258 | bool QScriptDebuggerLocalsItemDelegate::eventFilter(QObject *watched, QEvent *event)
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| 259 | {
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| 260 | QLineEdit *le = qobject_cast<QLineEdit*>(watched);
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| 261 | if (!le)
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| 262 | return QStyledItemDelegate::eventFilter(watched, event);
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| 263 |
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| 264 | QScriptDebuggerLocalsWidget *localsWidget = qobject_cast<QScriptDebuggerLocalsWidget*>(parent());
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| 265 | Q_ASSERT(localsWidget != 0);
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| 266 | QScriptDebuggerLocalsWidgetPrivate *lvp =
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| 267 | reinterpret_cast<QScriptDebuggerLocalsWidgetPrivate*>(
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| 268 | QScriptDebuggerLocalsWidgetPrivate::get(localsWidget));
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| 269 |
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| 270 | if ((event->type() == QEvent::FocusIn) && lvp->completingEditor) {
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| 271 | // because QLineEdit insists on being difficult...
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| 272 | return true;
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| 273 | }
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| 274 |
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| 275 | if (event->type() != QEvent::KeyPress)
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| 276 | return QStyledItemDelegate::eventFilter(watched, event);
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| 277 | QKeyEvent *ke = static_cast<QKeyEvent*>(event);
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| 278 | if ((ke->key() == Qt::Key_Enter) || (ke->key() == Qt::Key_Return)) {
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| 279 | if (QScriptEngine::checkSyntax(le->text()).state() != QScriptSyntaxCheckResult::Valid) {
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| 280 | // ignore when script contains syntax error
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| 281 | return true;
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| 282 | }
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| 283 | }
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| 284 | if (ke->key() != Qt::Key_Tab)
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| 285 | return QStyledItemDelegate::eventFilter(watched, event);
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| 286 |
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| 287 | // trigger completion
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| 288 | lvp->complete(le);
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| 289 | return true;
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| 290 | }
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| 291 |
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| 292 | void QScriptDebuggerLocalsItemDelegate::setModelData(
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| 293 | QWidget *editor, QAbstractItemModel *model,
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| 294 | const QModelIndex &index) const
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| 295 | {
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| 296 | if (index.column() == 1) {
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| 297 | // check that the syntax is OK
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| 298 | QString expression = qobject_cast<QLineEdit*>(editor)->text();
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| 299 | if (QScriptEngine::checkSyntax(expression).state() != QScriptSyntaxCheckResult::Valid)
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| 300 | return;
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| 301 | }
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| 302 | QStyledItemDelegate::setModelData(editor, model, index);
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| 303 | }
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| 304 |
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| 305 | void QScriptDebuggerLocalsItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option,
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| 306 | const QModelIndex &index) const
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| 307 | {
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| 308 | QStyledItemDelegate::paint(painter, option, index);
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| 309 | #if 0
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| 310 | QModelIndex parent = index.parent();
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| 311 | if (parent.isValid()) {
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| 312 | QStyledItemDelegate::paint(painter, option, index);
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| 313 | } else {
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| 314 | // this is a top-level item.
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| 315 | const QTreeView *view = qobject_cast<const QTreeView*>(widget(option));
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| 316 | Q_ASSERT(view != 0);
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| 317 |
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| 318 | QStyleOptionButton buttonOption;
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| 319 |
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| 320 | buttonOption.state = option.state;
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| 321 | #ifdef Q_WS_MAC
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| 322 | buttonOption.state |= QStyle::State_Raised;
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| 323 | #endif
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| 324 | buttonOption.state &= ~QStyle::State_HasFocus;
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| 325 |
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| 326 | buttonOption.rect = option.rect;
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| 327 | buttonOption.palette = option.palette;
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| 328 | buttonOption.features = QStyleOptionButton::None;
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| 329 | view->style()->drawControl(QStyle::CE_PushButton, &buttonOption, painter, view);
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| 330 |
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| 331 | QStyleOption branchOption;
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| 332 | static const int i = 9; // ### hardcoded in qcommonstyle.cpp
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| 333 | QRect r = option.rect;
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| 334 | branchOption.rect = QRect(r.left() + i/2, r.top() + (r.height() - i)/2, i, i);
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| 335 | branchOption.palette = option.palette;
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| 336 | branchOption.state = QStyle::State_Children;
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| 337 |
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| 338 | if (view->isExpanded(index))
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| 339 | branchOption.state |= QStyle::State_Open;
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| 340 |
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| 341 | view->style()->drawPrimitive(QStyle::PE_IndicatorBranch, &branchOption, painter, view);
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| 342 |
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| 343 | // draw text
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| 344 | QRect textrect = QRect(r.left() + i*2, r.top(), r.width() - ((5*i)/2), r.height());
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| 345 | QString text = elidedText(option.fontMetrics, textrect.width(), Qt::ElideMiddle,
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| 346 | index.data(Qt::DisplayRole).toString());
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| 347 | view->style()->drawItemText(painter, textrect, Qt::AlignCenter,
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| 348 | option.palette, view->isEnabled(), text);
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| 349 | }
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| 350 | #endif
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| 351 | }
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| 352 |
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| 353 | QScriptDebuggerLocalsWidget::QScriptDebuggerLocalsWidget(QWidget *parent)
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| 354 | : QScriptDebuggerLocalsWidgetInterface(*new QScriptDebuggerLocalsWidgetPrivate, parent, 0)
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| 355 | {
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| 356 | Q_D(QScriptDebuggerLocalsWidget);
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| 357 | d->view = new QTreeView();
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| 358 | d->view->setItemDelegate(new QScriptDebuggerLocalsItemDelegate(this));
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| 359 | d->view->setEditTriggers(QAbstractItemView::DoubleClicked);
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| 360 | // d->view->setEditTriggers(QAbstractItemView::NoEditTriggers);
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| 361 | d->view->setEditTriggers(QAbstractItemView::DoubleClicked | QAbstractItemView::SelectedClicked);
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| 362 | d->view->setAlternatingRowColors(true);
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| 363 | d->view->setSelectionBehavior(QAbstractItemView::SelectRows);
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| 364 | d->view->setSortingEnabled(true);
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| 365 | d->view->header()->setDefaultAlignment(Qt::AlignLeft);
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| 366 | // d->view->header()->setSortIndicatorShown(true);
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| 367 | // d->view->header()->setResizeMode(QHeaderView::ResizeToContents);
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| 368 |
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| 369 | QVBoxLayout *vbox = new QVBoxLayout(this);
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| 370 | vbox->setMargin(0);
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| 371 | vbox->addWidget(d->view);
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| 372 | }
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| 373 |
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| 374 | QScriptDebuggerLocalsWidget::~QScriptDebuggerLocalsWidget()
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| 375 | {
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| 376 | }
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| 377 |
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| 378 | /*!
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| 379 | \reimp
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| 380 | */
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| 381 | QScriptDebuggerLocalsModel *QScriptDebuggerLocalsWidget::localsModel() const
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| 382 | {
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| 383 | Q_D(const QScriptDebuggerLocalsWidget);
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| 384 | if (!d->proxy)
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| 385 | return 0;
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| 386 | return qobject_cast<QScriptDebuggerLocalsModel*>(d->proxy->sourceModel());
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| 387 | }
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| 388 |
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| 389 | /*!
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| 390 | \reimp
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| 391 | */
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| 392 | void QScriptDebuggerLocalsWidget::setLocalsModel(QScriptDebuggerLocalsModel *model)
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| 393 | {
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| 394 | Q_D(QScriptDebuggerLocalsWidget);
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| 395 | if (localsModel()) {
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| 396 | QObject::disconnect(localsModel(), 0, d->view, 0);
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| 397 | }
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| 398 | if (model) {
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| 399 | QObject::connect(model, SIGNAL(scopeObjectAvailable(QModelIndex)),
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| 400 | this, SLOT(_q_expandIndex(QModelIndex)));
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| 401 | }
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| 402 | if (!d->proxy) {
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| 403 | d->proxy = new CustomProxyModel(this);
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| 404 | d->view->sortByColumn(0, Qt::AscendingOrder);
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| 405 | }
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| 406 | d->proxy->setSourceModel(model);
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| 407 | d->view->setModel(d->proxy);
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| 408 | }
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| 409 |
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| 410 | /*!
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| 411 | \reimp
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| 412 | */
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| 413 | void QScriptDebuggerLocalsWidget::expand(const QModelIndex &index)
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| 414 | {
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| 415 | Q_D(QScriptDebuggerLocalsWidget);
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| 416 | d->view->expand(index);
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| 417 | d->view->setFirstColumnSpanned(index.row(), QModelIndex(), true);
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| 418 | }
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| 419 |
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| 420 | QT_END_NAMESPACE
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| 421 |
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| 422 | #include "qscriptdebuggerlocalswidget.moc"
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| 423 |
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| 424 | #include "moc_qscriptdebuggerlocalswidget_p.cpp"
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