/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 338 by capela, Wed Jan 12 10:43:37 2005 UTC revision 2582 by capela, Fri May 30 20:58:26 2014 UTC
# Line 1  Line 1 
1  // qsamplerMessages.cpp  // qsamplerMessages.cpp
2  //  //
3  /****************************************************************************  /****************************************************************************
4     Copyright (C) 2003-2005, rncbc aka Rui Nuno Capela. All rights reserved.     Copyright (C) 2004-2014, rncbc aka Rui Nuno Capela. All rights reserved.
5       Copyright (C) 2007, Christian Schoenebeck
6    
7     This program is free software; you can redistribute it and/or     This program is free software; you can redistribute it and/or
8     modify it under the terms of the GNU General Public License     modify it under the terms of the GNU General Public License
# Line 13  Line 14 
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15     GNU General Public License for more details.     GNU General Public License for more details.
16    
17     You should have received a copy of the GNU General Public License     You should have received a copy of the GNU General Public License along
18     along with this program; if not, write to the Free Software     with this program; if not, write to the Free Software Foundation, Inc.,
19     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20    
21  *****************************************************************************/  *****************************************************************************/
22    
23    #include "qsamplerAbout.h"
24  #include "qsamplerMessages.h"  #include "qsamplerMessages.h"
25    
26  #include <qsocketnotifier.h>  #include <QSocketNotifier>
 #include <qstringlist.h>  
 #include <qtextedit.h>  
 #include <qdatetime.h>  
 #include <qtooltip.h>  
 #include <qpixmap.h>  
27    
28  #include "config.h"  #include <QFile>
29    #include <QTextEdit>
30    #include <QTextCursor>
31    #include <QTextStream>
32    #include <QTextBlock>
33    #include <QScrollBar>
34    #include <QDateTime>
35    #include <QIcon>
36    
37  #if !defined(WIN32)  #if !defined(WIN32)
38  #include <unistd.h>  #include <unistd.h>
39  #endif  #endif
40    
41    
42    namespace QSampler {
43    
44  // The default maximum number of message lines.  // The default maximum number of message lines.
45  #define QSAMPLER_MESSAGES_MAXLINES  1000  #define QSAMPLER_MESSAGES_MAXLINES  1000
46    
# Line 44  Line 51 
51    
52    
53  //-------------------------------------------------------------------------  //-------------------------------------------------------------------------
54  // qsamplerMessages - Messages log dockable window.  // QSampler::Messages - Messages log dockable window.
55  //  //
56    
57  // Constructor.  // Constructor.
58  qsamplerMessages::qsamplerMessages ( QWidget *pParent, const char *pszName )  Messages::Messages ( QWidget *pParent )
59      : QDockWindow(pParent, pszName)          : QDockWidget(pParent)
60  {  {
61  #if QT_VERSION >= 0x030200          // Surely a name is crucial (e.g.for storing geometry settings)
62      m_pTextView->setTextFormat(Qt::LogText);          QDockWidget::setObjectName("qsamplerMessages");
 #endif  
     // Initialize default message limit.  
     setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);  
63    
64      // Intialize stdout capture stuff.          // Intialize stdout capture stuff.
65      m_pStdoutNotifier = NULL;          m_pStdoutNotifier = NULL;
66      m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
67      m_fdStdout[QSAMPLER_MESSAGES_FDWRITE] = QSAMPLER_MESSAGES_FDNIL;          m_fdStdout[QSAMPLER_MESSAGES_FDWRITE] = QSAMPLER_MESSAGES_FDNIL;
68    
69      // Surely a name is crucial (e.g.for storing geometry settings)          // Create local text view widget.
70      if (pszName == 0)          m_pMessagesTextView = new QTextEdit(this);
71          QDockWindow::setName("qsamplerMessages");  //  QFont font(m_pMessagesTextView->font());
   
     // Create local text view widget.  
     m_pTextView = new QTextEdit(this);  
 //  QFont font(m_pTextView->font());  
72  //  font.setFamily("Fixed");  //  font.setFamily("Fixed");
73  //  m_pTextView->setFont(font);  //  m_pMessagesTextView->setFont(font);
74      m_pTextView->setWordWrap(QTextEdit::NoWrap);          m_pMessagesTextView->setLineWrapMode(QTextEdit::NoWrap);
75      m_pTextView->setReadOnly(true);          m_pMessagesTextView->setReadOnly(true);
76      m_pTextView->setUndoRedoEnabled(false);          m_pMessagesTextView->setUndoRedoEnabled(false);
77    //      m_pMessagesTextView->setTextFormat(Qt::LogText);
78      // Prepare the dockable window stuff.  
79      QDockWindow::setWidget(m_pTextView);          // Initialize default message limit.
80      QDockWindow::setOrientation(Qt::Horizontal);          m_iMessagesLines = 0;
81      QDockWindow::setCloseMode(QDockWindow::Always);          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);
82      QDockWindow::setResizeEnabled(true);  
83            m_pMessagesLog = NULL;
84      // Finally set the default caption and tooltip.  
85      QString sCaption = tr("Messages");          // Prepare the dockable window stuff.
86      QToolTip::add(this, sCaption);          QDockWidget::setWidget(m_pMessagesTextView);
87      QDockWindow::setCaption(sCaption);          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);
88            QDockWidget::setAllowedAreas(
89                    Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
90            // Some specialties to this kind of dock window...
91            QDockWidget::setMinimumHeight(120);
92    
93            // Finally set the default caption and tooltip.
94            const QString& sCaption = tr("Messages");
95            QDockWidget::setWindowTitle(sCaption);
96    //      QDockWidget::setWindowIcon(QIcon(":/icons/qsamplerMessages.png"));
97            QDockWidget::setToolTip(sCaption);
98  }  }
99    
100    
101  // Destructor.  // Destructor.
102  qsamplerMessages::~qsamplerMessages (void)  Messages::~Messages (void)
103  {  {
104      // No more notifications.          // Turn off and close logging.
105      if (m_pStdoutNotifier)          setLogging(false);
         delete m_pStdoutNotifier;  
106    
107      // No need to delete child widgets, Qt does it all for us.          // No more notifications.
108            if (m_pStdoutNotifier)
109                    delete m_pStdoutNotifier;
110    
111            // No need to delete child widgets, Qt does it all for us.
112  }  }
113    
114    
115  // Own stdout/stderr socket notifier slot.  // Own stdout/stderr socket notifier slot.
116  void qsamplerMessages::stdoutNotify ( int fd )  void Messages::stdoutNotify ( int fd )
117  {  {
118  #if !defined(WIN32)  #if !defined(WIN32)
119      char achBuffer[1024];          char achBuffer[1024];
120      int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);          const int cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);
121      if (cchBuffer > 0) {          if (cchBuffer > 0) {
122          achBuffer[cchBuffer] = (char) 0;                  achBuffer[cchBuffer] = (char) 0;
123          appendStdoutBuffer(achBuffer);                  appendStdoutBuffer(achBuffer);
124      }          }
125  #endif  #endif
126  }  }
127    
128    
129  // Stdout buffer handler -- now splitted by complete new-lines...  // Stdout buffer handler -- now splitted by complete new-lines...
130  void qsamplerMessages::appendStdoutBuffer ( const QString& s )  void Messages::appendStdoutBuffer ( const QString& s )
131  {  {
132      m_sStdoutBuffer.append(s);          m_sStdoutBuffer.append(s);
133    
134      int iLength = m_sStdoutBuffer.findRev('\n') + 1;          const int iLength = m_sStdoutBuffer.lastIndexOf('\n');
135      if (iLength > 0) {          if (iLength > 0) {
136          QString sTemp = m_sStdoutBuffer.left(iLength);                  const QString& sTemp = m_sStdoutBuffer.left(iLength);
137          m_sStdoutBuffer.remove(0, iLength);                  m_sStdoutBuffer.remove(0, iLength + 1);
138          QStringList list = QStringList::split('\n', sTemp, true);                  QStringList list = sTemp.split('\n');
139          for (QStringList::Iterator iter = list.begin(); iter != list.end(); iter++)                  QStringListIterator iter(list);
140              appendMessagesText(*iter);                  while (iter.hasNext())
141      }                          appendMessagesText(iter.next());
142            }
143  }  }
144    
145    
146  // Stdout flusher -- show up any unfinished line...  // Stdout flusher -- show up any unfinished line...
147  void qsamplerMessages::flushStdoutBuffer (void)  void Messages::flushStdoutBuffer (void)
148  {  {
149      if (!m_sStdoutBuffer.isEmpty()) {          if (!m_sStdoutBuffer.isEmpty()) {
150          appendMessagesText(m_sStdoutBuffer);                  appendMessagesText(m_sStdoutBuffer);
151          m_sStdoutBuffer.truncate(0);                  m_sStdoutBuffer.truncate(0);
152      }          }
153  }  }
154    
155    
156  // Stdout capture accessors.  // Stdout capture accessors.
157  bool qsamplerMessages::isCaptureEnabled (void)  bool Messages::isCaptureEnabled (void)
158  {  {
159      return (bool) (m_pStdoutNotifier != NULL);          return (m_pStdoutNotifier != NULL);
160  }  }
161    
162  void qsamplerMessages::setCaptureEnabled ( bool bCapture )  void Messages::setCaptureEnabled ( bool bCapture )
163  {  {
164      // Flush current buffer.          // Flush current buffer.
165      flushStdoutBuffer();          flushStdoutBuffer();
166    
167  #if !defined(WIN32)  #if !defined(WIN32)
168      // Destroy if already enabled.          // Destroy if already enabled.
169      if (!bCapture && m_pStdoutNotifier) {          if (!bCapture && m_pStdoutNotifier) {
170          delete m_pStdoutNotifier;                  delete m_pStdoutNotifier;
171          m_pStdoutNotifier = NULL;                  m_pStdoutNotifier = NULL;
172          // Close the notification pipes.                  // Close the notification pipes.
173          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
174              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
175              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
176          }                  }
177          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {          }
178              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);          // Are we going to make up the capture?
179              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
180          }                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);
181      }                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);
182      // Are we going to make up the capture?                  m_pStdoutNotifier = new QSocketNotifier(
183      if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);
184          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);                  QObject::connect(m_pStdoutNotifier,
185          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);                          SIGNAL(activated(int)),
186          m_pStdoutNotifier = new QSocketNotifier(m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);                          SLOT(stdoutNotify(int)));
187          QObject::connect(m_pStdoutNotifier, SIGNAL(activated(int)), this, SLOT(stdoutNotify(int)));          }
     }  
188  #endif  #endif
189  }  }
190    
191    
192  // Message font accessors.  // Message font accessors.
193  QFont qsamplerMessages::messagesFont (void)  QFont Messages::messagesFont (void)
194  {  {
195      return m_pTextView->font();          return m_pMessagesTextView->font();
196  }  }
197    
198  void qsamplerMessages::setMessagesFont( const QFont& font )  void Messages::setMessagesFont ( const QFont& font )
199  {  {
200      m_pTextView->setFont(font);          m_pMessagesTextView->setFont(font);
201  }  }
202    
203    
204  // Maximum number of message lines accessors.  // Maximum number of message lines accessors.
205  int qsamplerMessages::messagesLimit (void)  int Messages::messagesLimit (void)
206  {  {
207      return m_iMessagesLimit;          return m_iMessagesLimit;
208  }  }
209    
210  void qsamplerMessages::setMessagesLimit ( int iMessagesLimit )  void Messages::setMessagesLimit ( int iMessagesLimit )
211  {  {
212      m_iMessagesLimit = iMessagesLimit;          m_iMessagesLimit = iMessagesLimit;
213      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);          m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);
214  #if QT_VERSION >= 0x030200  }
215          m_pTextView->setMaxLogLines(iMessagesLimit);  
216  #endif  // Messages logging stuff.
217    bool Messages::isLogging (void) const
218    {
219            return (m_pMessagesLog != NULL);
220    }
221    
222    void Messages::setLogging ( bool bEnabled, const QString& sFilename )
223    {
224            if (m_pMessagesLog) {
225                    appendMessages(tr("Logging stopped --- %1 ---")
226                            .arg(QDateTime::currentDateTime().toString()));
227                    m_pMessagesLog->close();
228                    delete m_pMessagesLog;
229                    m_pMessagesLog = NULL;
230            }
231    
232            if (bEnabled) {
233                    m_pMessagesLog = new QFile(sFilename);
234                    if (m_pMessagesLog->open(QIODevice::Text | QIODevice::Append)) {
235                            appendMessages(tr("Logging started --- %1 ---")
236                                    .arg(QDateTime::currentDateTime().toString()));
237                    } else {
238                            delete m_pMessagesLog;
239                            m_pMessagesLog = NULL;
240                    }
241            }
242    }
243    
244    
245    // Messages log output method.
246    void Messages::appendMessagesLog ( const QString& s )
247    {
248            if (m_pMessagesLog) {
249                    QTextStream(m_pMessagesLog) << s << endl;
250                    m_pMessagesLog->flush();
251            }
252    }
253    
254    // Messages widget output method.
255    void Messages::appendMessagesLine ( const QString& s )
256    {
257            // Check for message line limit...
258            if (m_iMessagesLines > m_iMessagesHigh) {
259                    m_pMessagesTextView->setUpdatesEnabled(false);
260                    QTextCursor textCursor(m_pMessagesTextView->document()->begin());
261                    while (m_iMessagesLines > m_iMessagesLimit) {
262                            // Move cursor extending selection
263                            // from start to next line-block...
264                            textCursor.movePosition(
265                                    QTextCursor::NextBlock, QTextCursor::KeepAnchor);
266                            m_iMessagesLines--;
267                    }
268                    // Remove the excessive line-blocks...
269                    textCursor.removeSelectedText();
270                    m_pMessagesTextView->setUpdatesEnabled(true);
271            }
272    
273            m_pMessagesTextView->append(s);
274            m_iMessagesLines++;
275  }  }
276    
277    
278  // The main utility methods.  // The main utility methods.
279  void qsamplerMessages::appendMessages ( const QString& s )  void Messages::appendMessages ( const QString& s )
280  {  {
281      appendMessagesColor(s, "#999999");          appendMessagesColor(s, "#999999");
282  }  }
283    
284  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  void Messages::appendMessagesColor ( const QString& s, const QString &c )
285  {  {
286      appendMessagesText("<font color=\"" + c + "\">" + QTime::currentTime().toString("hh:mm:ss.zzz") + " " + s + "</font>");          const QString& sText = QTime::currentTime().toString("hh:mm:ss.zzz") + ' ' + s;
287            appendMessagesLine("<font color=\"" + c + "\">" + sText + "</font>");
288            appendMessagesLog(sText);
289  }  }
290    
291  void qsamplerMessages::appendMessagesText ( const QString& s )  void Messages::appendMessagesText ( const QString& s )
292  {  {
293  #if QT_VERSION < 0x030200          appendMessagesLine(s);
294      // Check for message line limit...          appendMessagesLog(s);
     if (m_iMessagesLimit > 0) {  
         int iParagraphs = m_pTextView->paragraphs();  
         if (iParagraphs > m_iMessagesHigh) {  
             m_pTextView->setUpdatesEnabled(false);  
             while (iParagraphs > m_iMessagesLimit) {  
                 m_pTextView->removeParagraph(0);  
                 iParagraphs--;  
             }  
             m_pTextView->scrollToBottom();  
             m_pTextView->setUpdatesEnabled(true);  
         }  
     }  
 #endif  
     m_pTextView->append(s);  
295  }  }
296    
297    
298  // One time scroll to the most recent message.  // History reset.
299  void qsamplerMessages::scrollToBottom (void)  void Messages::clear (void)
300  {  {
301      flushStdoutBuffer();          m_iMessagesLines = 0;
302      m_pTextView->scrollToBottom();          m_pMessagesTextView->clear();
303  }  }
304    
305    } // namespace QSampler
306    
307    
308  // end of qsamplerMessages.cpp  // end of qsamplerMessages.cpp
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