/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 1474 by schoenebeck, Mon Nov 5 20:47:38 2007 UTC revision 3357 by capela, Tue Oct 17 21:44:20 2017 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) 2004-2017, 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>
35  #include <QIcon>  #include <QIcon>
36    
37  #if !defined(WIN32)  #if !defined(_WIN32)
38  #include <unistd.h>  #include <unistd.h>
39    #include <fcntl.h>
40  #endif  #endif
41    
42    
43    namespace QSampler {
44    
45  // The default maximum number of message lines.  // The default maximum number of message lines.
46  #define QSAMPLER_MESSAGES_MAXLINES  1000  #define QSAMPLER_MESSAGES_MAXLINES  1000
47    
# Line 45  Line 52 
52    
53    
54  //-------------------------------------------------------------------------  //-------------------------------------------------------------------------
55  // qsamplerMessages - Messages log dockable window.  // QSampler::Messages - Messages log dockable window.
56  //  //
57    
58  // Constructor.  // Constructor.
59  qsamplerMessages::qsamplerMessages ( QWidget *pParent )  Messages::Messages ( QWidget *pParent )
60      : QDockWidget(pParent)          : QDockWidget(pParent)
61  {  {
62          // Surely a name is crucial (e.g.for storing geometry settings)          // Surely a name is crucial (e.g.for storing geometry settings)
63          QDockWidget::setObjectName("qsamplerMessages");          QDockWidget::setObjectName("qsamplerMessages");
64    
65      // Intialize stdout capture stuff.          // Intialize stdout capture stuff.
66      m_pStdoutNotifier = NULL;          m_pStdoutNotifier = NULL;
67      m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
68      m_fdStdout[QSAMPLER_MESSAGES_FDWRITE] = QSAMPLER_MESSAGES_FDNIL;          m_fdStdout[QSAMPLER_MESSAGES_FDWRITE] = QSAMPLER_MESSAGES_FDNIL;
69    
70          // Create local text view widget.          // Create local text view widget.
71          m_pTextView = new QTextEdit(this);          m_pMessagesTextView = new QTextEdit(this);
72  //  QFont font(m_pTextView->font());  //  QFont font(m_pMessagesTextView->font());
73  //  font.setFamily("Fixed");  //  font.setFamily("Fixed");
74  //  m_pTextView->setFont(font);  //  m_pMessagesTextView->setFont(font);
75          m_pTextView->setLineWrapMode(QTextEdit::NoWrap);          m_pMessagesTextView->setLineWrapMode(QTextEdit::NoWrap);
76          m_pTextView->setReadOnly(true);          m_pMessagesTextView->setReadOnly(true);
77          m_pTextView->setUndoRedoEnabled(false);          m_pMessagesTextView->setUndoRedoEnabled(false);
78  //      m_pTextView->setTextFormat(Qt::LogText);  //      m_pMessagesTextView->setTextFormat(Qt::LogText);
79    
80          // Initialize default message limit.          // Initialize default message limit.
81          m_iMessagesLines = 0;          m_iMessagesLines = 0;
82          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);
83    
84            m_pMessagesLog = NULL;
85    
86          // Prepare the dockable window stuff.          // Prepare the dockable window stuff.
87          QDockWidget::setWidget(m_pTextView);          QDockWidget::setWidget(m_pMessagesTextView);
88          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);
89          QDockWidget::setAllowedAreas(          QDockWidget::setAllowedAreas(
90                  Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);                  Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
# Line 91  qsamplerMessages::qsamplerMessages ( QWi Line 100  qsamplerMessages::qsamplerMessages ( QWi
100    
101    
102  // Destructor.  // Destructor.
103  qsamplerMessages::~qsamplerMessages (void)  Messages::~Messages (void)
104  {  {
105      // No more notifications.          // Turn off and close logging.
106      if (m_pStdoutNotifier)          setLogging(false);
         delete m_pStdoutNotifier;  
107    
108      // No need to delete child widgets, Qt does it all for us.          // No more notifications.
109            if (m_pStdoutNotifier)
110                    delete m_pStdoutNotifier;
111    
112            // No need to delete child widgets, Qt does it all for us.
113  }  }
114    
115    
116  void qsamplerMessages::showEvent (QShowEvent* event)  // Set stdout/stderr blocking mode.
117    bool Messages::stdoutBlock ( int fd, bool bBlock ) const
118  {  {
119      QDockWidget::showEvent(event);  #if !defined(_WIN32)
120      emit visibilityChanged(isVisible());          const int iFlags = ::fcntl(fd, F_GETFL, 0);
121            const bool bNonBlock = bool(iFlags & O_NONBLOCK);
122            if (bBlock && bNonBlock)
123                    bBlock = (::fcntl(fd, F_SETFL, iFlags & ~O_NONBLOCK) == 0);
124            else
125            if (!bBlock && !bNonBlock)
126                    bBlock = (::fcntl(fd, F_SETFL, iFlags |  O_NONBLOCK) != 0);
127    #endif
128            return bBlock;
129  }  }
130    
131    
132  // Own stdout/stderr socket notifier slot.  // Own stdout/stderr socket notifier slot.
133  void qsamplerMessages::stdoutNotify ( int fd )  void Messages::stdoutNotify ( int fd )
134  {  {
135  #if !defined(WIN32)  #if !defined(_WIN32)
136      char achBuffer[1024];          // Set non-blocking reads, if not already...
137      int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);          const bool bBlock = stdoutBlock(fd, false);
138      if (cchBuffer > 0) {          // Read as much as is available...
139          achBuffer[cchBuffer] = (char) 0;          QString sTemp;
140          appendStdoutBuffer(achBuffer);          char achBuffer[1024];
141      }          const int cchBuffer = sizeof(achBuffer) - 1;
142            int cchRead = ::read(fd, achBuffer, cchBuffer);
143            while (cchRead > 0) {
144                    achBuffer[cchRead] = (char) 0;
145                    sTemp.append(achBuffer);
146                    cchRead = (bBlock ? 0 : ::read(fd, achBuffer, cchBuffer));
147            }
148            // Needs to be non-empty...
149            if (!sTemp.isEmpty())
150                    appendStdoutBuffer(sTemp);
151  #endif  #endif
152  }  }
153    
154    
155  // Stdout buffer handler -- now splitted by complete new-lines...  // Stdout buffer handler -- now splitted by complete new-lines...
156  void qsamplerMessages::appendStdoutBuffer ( const QString& s )  void Messages::appendStdoutBuffer ( const QString& s )
157  {  {
158          m_sStdoutBuffer.append(s);          m_sStdoutBuffer.append(s);
159    
160          int iLength = m_sStdoutBuffer.lastIndexOf('\n');          const int iLength = m_sStdoutBuffer.lastIndexOf('\n');
161          if (iLength > 0) {          if (iLength > 0) {
162                  QString sTemp = m_sStdoutBuffer.left(iLength);                  const QString& sTemp = m_sStdoutBuffer.left(iLength);
163                  m_sStdoutBuffer.remove(0, iLength + 1);                  m_sStdoutBuffer.remove(0, iLength + 1);
164                  QStringList list = sTemp.split('\n');                  QStringList list = sTemp.split('\n');
165                  QStringListIterator iter(list);                  QStringListIterator iter(list);
# Line 140  void qsamplerMessages::appendStdoutBuffe Line 170  void qsamplerMessages::appendStdoutBuffe
170    
171    
172  // Stdout flusher -- show up any unfinished line...  // Stdout flusher -- show up any unfinished line...
173  void qsamplerMessages::flushStdoutBuffer (void)  void Messages::flushStdoutBuffer (void)
174  {  {
175      if (!m_sStdoutBuffer.isEmpty()) {          if (!m_sStdoutBuffer.isEmpty()) {
176          appendMessagesText(m_sStdoutBuffer);                  appendMessagesText(m_sStdoutBuffer);
177          m_sStdoutBuffer.truncate(0);                  m_sStdoutBuffer.clear();
178      }          }
179  }  }
180    
181    
182  // Stdout capture accessors.  // Stdout capture accessors.
183  bool qsamplerMessages::isCaptureEnabled (void)  bool Messages::isCaptureEnabled (void)
184  {  {
185      return (bool) (m_pStdoutNotifier != NULL);          return (m_pStdoutNotifier != NULL);
186  }  }
187    
188  void qsamplerMessages::setCaptureEnabled ( bool bCapture )  void Messages::setCaptureEnabled ( bool bCapture )
189  {  {
190      // Flush current buffer.          // Flush current buffer.
191      flushStdoutBuffer();          flushStdoutBuffer();
192    
193  #if !defined(WIN32)  #if !defined(_WIN32)
194          // Destroy if already enabled.          // Destroy if already enabled.
195          if (!bCapture && m_pStdoutNotifier) {          if (!bCapture && m_pStdoutNotifier) {
196                  delete m_pStdoutNotifier;                  delete m_pStdoutNotifier;
# Line 170  void qsamplerMessages::setCaptureEnabled Line 200  void qsamplerMessages::setCaptureEnabled
200                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
201                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
202                  }                  }
                 if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {  
                         ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);  
                         m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;  
                 }  
203          }          }
204          // Are we going to make up the capture?          // Are we going to make up the capture?
205          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
# Line 190  void qsamplerMessages::setCaptureEnabled Line 216  void qsamplerMessages::setCaptureEnabled
216    
217    
218  // Message font accessors.  // Message font accessors.
219  QFont qsamplerMessages::messagesFont (void)  QFont Messages::messagesFont (void)
220  {  {
221      return m_pTextView->font();          return m_pMessagesTextView->font();
222  }  }
223    
224  void qsamplerMessages::setMessagesFont( const QFont& font )  void Messages::setMessagesFont ( const QFont& font )
225  {  {
226      m_pTextView->setFont(font);          m_pMessagesTextView->setFont(font);
227  }  }
228    
229    
230  // Maximum number of message lines accessors.  // Maximum number of message lines accessors.
231  int qsamplerMessages::messagesLimit (void)  int Messages::messagesLimit (void)
232  {  {
233      return m_iMessagesLimit;          return m_iMessagesLimit;
234  }  }
235    
236  void qsamplerMessages::setMessagesLimit ( int iMessagesLimit )  void Messages::setMessagesLimit ( int iMessagesLimit )
237  {  {
238      m_iMessagesLimit = iMessagesLimit;          m_iMessagesLimit = iMessagesLimit;
239      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);          m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);
240  }  }
241    
242    // Messages logging stuff.
243    bool Messages::isLogging (void) const
244    {
245            return (m_pMessagesLog != NULL);
246    }
247    
248  // The main utility methods.  void Messages::setLogging ( bool bEnabled, const QString& sFilename )
 void qsamplerMessages::appendMessages ( const QString& s )  
249  {  {
250      appendMessagesColor(s, "#999999");          if (m_pMessagesLog) {
251                    appendMessages(tr("Logging stopped --- %1 ---")
252                            .arg(QDateTime::currentDateTime().toString()));
253                    m_pMessagesLog->close();
254                    delete m_pMessagesLog;
255                    m_pMessagesLog = NULL;
256            }
257    
258            if (bEnabled) {
259                    m_pMessagesLog = new QFile(sFilename);
260                    if (m_pMessagesLog->open(QIODevice::Text | QIODevice::Append)) {
261                            appendMessages(tr("Logging started --- %1 ---")
262                                    .arg(QDateTime::currentDateTime().toString()));
263                    } else {
264                            delete m_pMessagesLog;
265                            m_pMessagesLog = NULL;
266                    }
267            }
268  }  }
269    
270  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  
271    // Messages log output method.
272    void Messages::appendMessagesLog ( const QString& s )
273  {  {
274          appendMessagesText("<font color=\"" + c + "\">"          if (m_pMessagesLog) {
275                  + QTime::currentTime().toString("hh:mm:ss.zzz")                  QTextStream(m_pMessagesLog) << s << endl;
276                  + ' ' + s + "</font>");                  m_pMessagesLog->flush();
277            }
278  }  }
279    
280  void qsamplerMessages::appendMessagesText ( const QString& s )  // Messages widget output method.
281    void Messages::appendMessagesLine ( const QString& s )
282  {  {
283      // Check for message line limit...          // Check for message line limit...
284      if (m_iMessagesLines > m_iMessagesHigh) {          if (m_iMessagesLines > m_iMessagesHigh) {
285                  m_pTextView->setUpdatesEnabled(false);                  m_pMessagesTextView->setUpdatesEnabled(false);
286                  QTextCursor textCursor(m_pTextView->document()->begin());                  QTextCursor textCursor(m_pMessagesTextView->document()->begin());
287                  while (m_iMessagesLines > m_iMessagesLimit) {                  while (m_iMessagesLines > m_iMessagesLimit) {
288                          // Move cursor extending selection                          // Move cursor extending selection
289                          // from start to next line-block...                          // from start to next line-block...
# Line 242  void qsamplerMessages::appendMessagesTex Line 293  void qsamplerMessages::appendMessagesTex
293                  }                  }
294                  // Remove the excessive line-blocks...                  // Remove the excessive line-blocks...
295                  textCursor.removeSelectedText();                  textCursor.removeSelectedText();
296                  m_pTextView->setUpdatesEnabled(true);                  m_pMessagesTextView->setUpdatesEnabled(true);
297      }          }
298    
299          // Count always as a new line out there...          m_pMessagesTextView->append(s);
         m_pTextView->append(s);  
300          m_iMessagesLines++;          m_iMessagesLines++;
301  }  }
302    
303    
304    // The main utility methods.
305    void Messages::appendMessages ( const QString& s )
306    {
307            appendMessagesColor(s, "#999999");
308    }
309    
310    void Messages::appendMessagesColor ( const QString& s, const QString &c )
311    {
312            const QString& sText
313                    = QTime::currentTime().toString("hh:mm:ss.zzz") + ' ' + s;
314            appendMessagesLine("<font color=\"" + c + "\">" + sText + "</font>");
315            appendMessagesLog(sText);
316    }
317    
318    void Messages::appendMessagesText ( const QString& s )
319    {
320            appendMessagesLine(s);
321            appendMessagesLog(s);
322    }
323    
324    
325  // History reset.  // History reset.
326  void qsamplerMessages::clear (void)  void Messages::clear (void)
327  {  {
328          m_iMessagesLines = 0;          m_iMessagesLines = 0;
329          m_pTextView->clear();          m_pMessagesTextView->clear();
330  }  }
331    
332    } // namespace QSampler
333    
334    
335  // end of qsamplerMessages.cpp  // end of qsamplerMessages.cpp
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