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 QtSCriptTools module 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

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    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.

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

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

    30 **

    31 **

    32 **

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    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

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

    41 

    42 #include "qscriptdebuggercodeview_p.h"

    43 #include "qscriptdebuggercodeviewinterface_p_p.h"

    44 

    45 #include "qscriptedit_p.h"

    46 

    47 #include <QtGui/qboxlayout.h>

    48 #include <QtGui/qtextobject.h>

    49 #include <QtCore/qdebug.h>

    50 

    51 QT_BEGIN_NAMESPACE

    52 

    53 class QScriptDebuggerCodeViewPrivate

    54     : public QScriptDebuggerCodeViewInterfacePrivate

    55 {

    56     Q_DECLARE_PUBLIC(QScriptDebuggerCodeView)

    57 public:

    58     QScriptDebuggerCodeViewPrivate();

    59     ~QScriptDebuggerCodeViewPrivate();

    60 

    61     QScriptEdit *editor;

    62 };

    63 

    64 QScriptDebuggerCodeViewPrivate::QScriptDebuggerCodeViewPrivate()

    65 {

    66 }

    67 

    68 QScriptDebuggerCodeViewPrivate::~QScriptDebuggerCodeViewPrivate()

    69 {

    70 }

    71 

    72 QScriptDebuggerCodeView::QScriptDebuggerCodeView(QWidget *parent)

    73     : QScriptDebuggerCodeViewInterface(*new QScriptDebuggerCodeViewPrivate, parent, 0)

    74 {

    75     Q_D(QScriptDebuggerCodeView);

    76     d->editor = new QScriptEdit();

    77     d->editor->setReadOnly(true);

    78     d->editor->setBackgroundVisible(false);

    79     QObject::connect(d->editor, SIGNAL(breakpointToggleRequest(int,bool)),

    80                      this, SIGNAL(breakpointToggleRequest(int,bool)));

    81     QObject::connect(d->editor, SIGNAL(breakpointEnableRequest(int,bool)),

    82                      this, SIGNAL(breakpointEnableRequest(int,bool)));

    83     QVBoxLayout *vbox = new QVBoxLayout(this);

    84     vbox->setMargin(0);

    85     vbox->addWidget(d->editor);

    86 }

    87 

    88 QScriptDebuggerCodeView::~QScriptDebuggerCodeView()

    89 {

    90 }

    91 

    92 QString QScriptDebuggerCodeView::text() const

    93 {

    94     Q_D(const QScriptDebuggerCodeView);

    95     return d->editor->toPlainText();

    96 }

    97 

    98 void QScriptDebuggerCodeView::setText(const QString &text)

    99 {

   100     Q_D(QScriptDebuggerCodeView);

   101     d->editor->setPlainText(text);

   102 }

   103 

   104 int QScriptDebuggerCodeView::cursorLineNumber() const

   105 {

   106     Q_D(const QScriptDebuggerCodeView);

   107     return d->editor->currentLineNumber();

   108 }

   109 

   110 void QScriptDebuggerCodeView::gotoLine(int lineNumber)

   111 {

   112     Q_D(QScriptDebuggerCodeView);

   113     d->editor->gotoLine(lineNumber);

   114 }

   115 

   116 int QScriptDebuggerCodeView::find(const QString &exp, int options)

   117 {

   118     Q_D(QScriptDebuggerCodeView);

   119     QPlainTextEdit *ed = (QPlainTextEdit*)d->editor;

   120     QTextCursor cursor = ed->textCursor();

   121     if (options & 0x100) {

   122         // start searching from the beginning of selection

   123         if (cursor.hasSelection()) {

   124             int len = cursor.selectedText().length();

   125             cursor.clearSelection();

   126             cursor.setPosition(cursor.position() - len);

   127             ed->setTextCursor(cursor);

   128         }

   129         options &= ~0x100;

   130     }

   131     int ret = 0;

   132     if (ed->find(exp, QTextDocument::FindFlags(options))) {

   133         ret |= 0x1;

   134     } else {

   135         QTextCursor curse = cursor;

   136         curse.movePosition(QTextCursor::Start);

   137         ed->setTextCursor(curse);

   138         if (ed->find(exp, QTextDocument::FindFlags(options)))

   139             ret |= 0x1 | 0x2;

   140         else

   141             ed->setTextCursor(cursor);

   142     }

   143     return ret;

   144 }

   145 

   146 void QScriptDebuggerCodeView::setExecutionLineNumber(int lineNumber, bool error)

   147 {

   148     Q_D(QScriptDebuggerCodeView);

   149     d->editor->setExecutionLineNumber(lineNumber, error);

   150 }

   151 

   152 void QScriptDebuggerCodeView::setExecutableLineNumbers(const QSet<int> &lineNumbers)

   153 {

   154     Q_D(QScriptDebuggerCodeView);

   155     d->editor->setExecutableLineNumbers(lineNumbers);

   156 }

   157 

   158 int QScriptDebuggerCodeView::baseLineNumber() const

   159 {

   160     Q_D(const QScriptDebuggerCodeView);

   161     return d->editor->baseLineNumber();

   162 }

   163 

   164 void QScriptDebuggerCodeView::setBaseLineNumber(int lineNumber)

   165 {

   166     Q_D(QScriptDebuggerCodeView);

   167     d->editor->setBaseLineNumber(lineNumber);

   168 }

   169 

   170 void QScriptDebuggerCodeView::setBreakpoint(int lineNumber)

   171 {

   172     Q_D(QScriptDebuggerCodeView);

   173     d->editor->setBreakpoint(lineNumber);

   174 }

   175 

   176 void QScriptDebuggerCodeView::deleteBreakpoint(int lineNumber)

   177 {

   178     Q_D(QScriptDebuggerCodeView);

   179     d->editor->deleteBreakpoint(lineNumber);

   180 }

   181 

   182 void QScriptDebuggerCodeView::setBreakpointEnabled(int lineNumber, bool enable)

   183 {

   184     Q_D(QScriptDebuggerCodeView);

   185     d->editor->setBreakpointEnabled(lineNumber, enable);

   186 }

   187 

   188 namespace {

   189 

   190 static bool isIdentChar(const QChar &ch)

   191 {

   192     static QChar underscore = QLatin1Char('_');

   193     return ch.isLetter() || (ch == underscore);

   194 }

   195 

   196 } // namespace

   197 

   198 /*!

   199   \reimp

   200 */

   201 bool QScriptDebuggerCodeView::event(QEvent *e)

   202 {

   203     Q_D(QScriptDebuggerCodeView);

   204     if (e->type() == QEvent::ToolTip) {

   205         if (d->editor->executionLineNumber() == -1)

   206             return false;

   207         QHelpEvent *he = static_cast<QHelpEvent*>(e);

   208         QPoint pt = he->pos();

   209         pt.rx() -= d->editor->extraAreaWidth();

   210         pt.ry() -= 8;

   211         QTextCursor cursor = d->editor->cursorForPosition(pt);

   212         QTextBlock block = cursor.block();

   213         QString contents = block.text();

   214         if (contents.isEmpty())

   215             return false;

   216         int linePosition = cursor.position() - block.position();

   217         if (linePosition < 0)

   218             linePosition = 0;

   219 

   220         // ### generalize -- same as in completiontask

   221 

   222         int pos = linePosition;

   223         if ((pos > 0) && contents.at(pos-1).isNumber()) {

   224             // tooltips for numbers is pointless

   225             return false;

   226         }

   227 

   228         while ((pos > 0) && isIdentChar(contents.at(pos-1)))

   229             --pos;

   230         if ((pos > 0) && ((contents.at(pos-1) == QLatin1Char('\''))

   231                           || (contents.at(pos-1) == QLatin1Char('\"')))) {

   232             // ignore string literals

   233             return false;

   234         }

   235         int pos2 = linePosition - 1;

   236         while ((pos2 < contents.size()-1) && isIdentChar(contents.at(pos2+1)))

   237             ++pos2;

   238         QString ident = contents.mid(pos, pos2 - pos + 1);

   239 

   240         QStringList path;

   241         path.append(ident);

   242         while ((pos > 0) && (contents.at(pos-1) == QLatin1Char('.'))) {

   243             --pos;

   244             pos2 = pos;

   245             while ((pos > 0) && isIdentChar(contents.at(pos-1)))

   246                 --pos;

   247             path.prepend(contents.mid(pos, pos2 - pos));

   248         }

   249 

   250         if (!path.isEmpty()) {

   251             int lineNumber = cursor.blockNumber() + d->editor->baseLineNumber();

   252             emit toolTipRequest(he->globalPos(), lineNumber, path);

   253         }

   254     }

   255     return false;

   256 }

   257 

   258 QT_END_NAMESPACE

   259 

   260 #include "moc_qscriptdebuggercodeview_p.cpp"