/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 1474 by schoenebeck, Mon Nov 5 20:47:38 2007 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) 2004-2007, 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     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
# Line 24  Line 24 
24  #include "qsamplerMessages.h"  #include "qsamplerMessages.h"
25    
26  #include <QSocketNotifier>  #include <QSocketNotifier>
27    
28    #include <QFile>
29  #include <QTextEdit>  #include <QTextEdit>
30  #include <QTextCursor>  #include <QTextCursor>
31    #include <QTextStream>
32  #include <QTextBlock>  #include <QTextBlock>
33  #include <QScrollBar>  #include <QScrollBar>
34  #include <QDateTime>  #include <QDateTime>
# Line 35  Line 38 
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 45  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 )  Messages::Messages ( QWidget *pParent )
59      : QDockWidget(pParent)          : QDockWidget(pParent)
60  {  {
61          // Surely a name is crucial (e.g.for storing geometry settings)          // Surely a name is crucial (e.g.for storing geometry settings)
62          QDockWidget::setObjectName("qsamplerMessages");          QDockWidget::setObjectName("qsamplerMessages");
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          // Create local text view widget.          // Create local text view widget.
70          m_pTextView = new QTextEdit(this);          m_pMessagesTextView = new QTextEdit(this);
71  //  QFont font(m_pTextView->font());  //  QFont font(m_pMessagesTextView->font());
72  //  font.setFamily("Fixed");  //  font.setFamily("Fixed");
73  //  m_pTextView->setFont(font);  //  m_pMessagesTextView->setFont(font);
74          m_pTextView->setLineWrapMode(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_pTextView->setTextFormat(Qt::LogText);  //      m_pMessagesTextView->setTextFormat(Qt::LogText);
78    
79          // Initialize default message limit.          // Initialize default message limit.
80          m_iMessagesLines = 0;          m_iMessagesLines = 0;
81          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);
82    
83            m_pMessagesLog = NULL;
84    
85          // Prepare the dockable window stuff.          // Prepare the dockable window stuff.
86          QDockWidget::setWidget(m_pTextView);          QDockWidget::setWidget(m_pMessagesTextView);
87          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);
88          QDockWidget::setAllowedAreas(          QDockWidget::setAllowedAreas(
89                  Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);                  Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
# Line 91  qsamplerMessages::qsamplerMessages ( QWi Line 99  qsamplerMessages::qsamplerMessages ( QWi
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;  
   
     // No need to delete child widgets, Qt does it all for us.  
 }  
106    
107            // No more notifications.
108            if (m_pStdoutNotifier)
109                    delete m_pStdoutNotifier;
110    
111  void qsamplerMessages::showEvent (QShowEvent* event)          // No need to delete child widgets, Qt does it all for us.
 {  
     QDockWidget::showEvent(event);  
     emit visibilityChanged(isVisible());  
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.lastIndexOf('\n');          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 + 1);                  m_sStdoutBuffer.remove(0, iLength + 1);
138                  QStringList list = sTemp.split('\n');                  QStringList list = sTemp.split('\n');
139                  QStringListIterator iter(list);                  QStringListIterator iter(list);
# Line 140  void qsamplerMessages::appendStdoutBuffe Line 144  void qsamplerMessages::appendStdoutBuffe
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.
# Line 170  void qsamplerMessages::setCaptureEnabled Line 174  void qsamplerMessages::setCaptureEnabled
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                  }                  }
                 if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {  
                         ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);  
                         m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;  
                 }  
177          }          }
178          // Are we going to make up the capture?          // Are we going to make up the capture?
179          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
# Line 190  void qsamplerMessages::setCaptureEnabled Line 190  void qsamplerMessages::setCaptureEnabled
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  }  }
215    
216    // Messages logging stuff.
217    bool Messages::isLogging (void) const
218    {
219            return (m_pMessagesLog != NULL);
220    }
221    
222  // The main utility methods.  void Messages::setLogging ( bool bEnabled, const QString& sFilename )
 void qsamplerMessages::appendMessages ( const QString& s )  
223  {  {
224      appendMessagesColor(s, "#999999");          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  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  
245    // Messages log output method.
246    void Messages::appendMessagesLog ( const QString& s )
247  {  {
248          appendMessagesText("<font color=\"" + c + "\">"          if (m_pMessagesLog) {
249                  + QTime::currentTime().toString("hh:mm:ss.zzz")                  QTextStream(m_pMessagesLog) << s << endl;
250                  + ' ' + s + "</font>");                  m_pMessagesLog->flush();
251            }
252  }  }
253    
254  void qsamplerMessages::appendMessagesText ( const QString& s )  // Messages widget output method.
255    void Messages::appendMessagesLine ( const QString& s )
256  {  {
257      // Check for message line limit...          // Check for message line limit...
258      if (m_iMessagesLines > m_iMessagesHigh) {          if (m_iMessagesLines > m_iMessagesHigh) {
259                  m_pTextView->setUpdatesEnabled(false);                  m_pMessagesTextView->setUpdatesEnabled(false);
260                  QTextCursor textCursor(m_pTextView->document()->begin());                  QTextCursor textCursor(m_pMessagesTextView->document()->begin());
261                  while (m_iMessagesLines > m_iMessagesLimit) {                  while (m_iMessagesLines > m_iMessagesLimit) {
262                          // Move cursor extending selection                          // Move cursor extending selection
263                          // from start to next line-block...                          // from start to next line-block...
# Line 242  void qsamplerMessages::appendMessagesTex Line 267  void qsamplerMessages::appendMessagesTex
267                  }                  }
268                  // Remove the excessive line-blocks...                  // Remove the excessive line-blocks...
269                  textCursor.removeSelectedText();                  textCursor.removeSelectedText();
270                  m_pTextView->setUpdatesEnabled(true);                  m_pMessagesTextView->setUpdatesEnabled(true);
271      }          }
272    
273          // Count always as a new line out there...          m_pMessagesTextView->append(s);
         m_pTextView->append(s);  
274          m_iMessagesLines++;          m_iMessagesLines++;
275  }  }
276    
277    
278    // The main utility methods.
279    void Messages::appendMessages ( const QString& s )
280    {
281            appendMessagesColor(s, "#999999");
282    }
283    
284    void Messages::appendMessagesColor ( const QString& s, const QString &c )
285    {
286            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 Messages::appendMessagesText ( const QString& s )
292    {
293            appendMessagesLine(s);
294            appendMessagesLog(s);
295    }
296    
297    
298  // History reset.  // History reset.
299  void qsamplerMessages::clear (void)  void Messages::clear (void)
300  {  {
301          m_iMessagesLines = 0;          m_iMessagesLines = 0;
302          m_pTextView->clear();          m_pMessagesTextView->clear();
303  }  }
304    
305    } // namespace QSampler
306    
307    
308  // end of qsamplerMessages.cpp  // end of qsamplerMessages.cpp
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