/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 338 by capela, Wed Jan 12 10:43:37 2005 UTC revision 2441 by capela, Wed Apr 10 09:11:37 2013 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) 2004-2013, 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 42  Line 49 
49  #define QSAMPLER_MESSAGES_FDREAD    0  #define QSAMPLER_MESSAGES_FDREAD    0
50  #define QSAMPLER_MESSAGES_FDWRITE   1  #define QSAMPLER_MESSAGES_FDWRITE   1
51    
   
52  //-------------------------------------------------------------------------  //-------------------------------------------------------------------------
53  // qsamplerMessages - Messages log dockable window.  // QSampler::Messages - Messages log dockable window.
54  //  //
55    
56  // Constructor.  // Constructor.
57  qsamplerMessages::qsamplerMessages ( QWidget *pParent, const char *pszName )  Messages::Messages ( QWidget *pParent )
58      : QDockWindow(pParent, pszName)          : QDockWidget(pParent)
59  {  {
60  #if QT_VERSION >= 0x030200          // Surely a name is crucial (e.g.for storing geometry settings)
61      m_pTextView->setTextFormat(Qt::LogText);          QDockWidget::setObjectName("qsamplerMessages");
 #endif  
     // Initialize default message limit.  
     setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);  
62    
63      // Intialize stdout capture stuff.          // Intialize stdout capture stuff.
64      m_pStdoutNotifier = NULL;          m_pStdoutNotifier = NULL;
65      m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
66      m_fdStdout[QSAMPLER_MESSAGES_FDWRITE] = QSAMPLER_MESSAGES_FDNIL;          m_fdStdout[QSAMPLER_MESSAGES_FDWRITE] = QSAMPLER_MESSAGES_FDNIL;
67    
68      // Surely a name is crucial (e.g.for storing geometry settings)          // Create local text view widget.
69      if (pszName == 0)          m_pMessagesTextView = new QTextEdit(this);
70          QDockWindow::setName("qsamplerMessages");  //  QFont font(m_pMessagesTextView->font());
   
     // Create local text view widget.  
     m_pTextView = new QTextEdit(this);  
 //  QFont font(m_pTextView->font());  
71  //  font.setFamily("Fixed");  //  font.setFamily("Fixed");
72  //  m_pTextView->setFont(font);  //  m_pMessagesTextView->setFont(font);
73      m_pTextView->setWordWrap(QTextEdit::NoWrap);          m_pMessagesTextView->setLineWrapMode(QTextEdit::NoWrap);
74      m_pTextView->setReadOnly(true);          m_pMessagesTextView->setReadOnly(true);
75      m_pTextView->setUndoRedoEnabled(false);          m_pMessagesTextView->setUndoRedoEnabled(false);
76    //      m_pMessagesTextView->setTextFormat(Qt::LogText);
77      // Prepare the dockable window stuff.  
78      QDockWindow::setWidget(m_pTextView);          // Initialize default message limit.
79      QDockWindow::setOrientation(Qt::Horizontal);          m_iMessagesLines = 0;
80      QDockWindow::setCloseMode(QDockWindow::Always);          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);
81      QDockWindow::setResizeEnabled(true);  
82            m_pMessagesLog = NULL;
83      // Finally set the default caption and tooltip.  
84      QString sCaption = tr("Messages");          // Prepare the dockable window stuff.
85      QToolTip::add(this, sCaption);          QDockWidget::setWidget(m_pMessagesTextView);
86      QDockWindow::setCaption(sCaption);          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);
87            QDockWidget::setAllowedAreas(
88                    Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
89            // Some specialties to this kind of dock window...
90            QDockWidget::setMinimumHeight(120);
91    
92            // Finally set the default caption and tooltip.
93            const QString& sCaption = tr("Messages");
94            QDockWidget::setWindowTitle(sCaption);
95    //      QDockWidget::setWindowIcon(QIcon(":/icons/qsamplerMessages.png"));
96            QDockWidget::setToolTip(sCaption);
97  }  }
98    
99    
100  // Destructor.  // Destructor.
101  qsamplerMessages::~qsamplerMessages (void)  Messages::~Messages (void)
102  {  {
103      // No more notifications.          // Turn off and close logging.
104      if (m_pStdoutNotifier)          setLogging(false);
         delete m_pStdoutNotifier;  
105    
106      // No need to delete child widgets, Qt does it all for us.          // No more notifications.
107            if (m_pStdoutNotifier)
108                    delete m_pStdoutNotifier;
109    
110            // No need to delete child widgets, Qt does it all for us.
111  }  }
112    
113    
114    #if QT_VERSION < 0x040300
115    void Messages::showEvent ( QShowEvent *pEvent )
116    {
117            QDockWidget::showEvent(pEvent);
118            emit visibilityChanged(isVisible());
119    }
120    #endif
121    
122  // Own stdout/stderr socket notifier slot.  // Own stdout/stderr socket notifier slot.
123  void qsamplerMessages::stdoutNotify ( int fd )  void Messages::stdoutNotify ( int fd )
124  {  {
125  #if !defined(WIN32)  #if !defined(WIN32)
126      char achBuffer[1024];          char achBuffer[1024];
127      int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);          int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);
128      if (cchBuffer > 0) {          if (cchBuffer > 0) {
129          achBuffer[cchBuffer] = (char) 0;                  achBuffer[cchBuffer] = (char) 0;
130          appendStdoutBuffer(achBuffer);                  appendStdoutBuffer(achBuffer);
131      }          }
132  #endif  #endif
133  }  }
134    
135    
136  // Stdout buffer handler -- now splitted by complete new-lines...  // Stdout buffer handler -- now splitted by complete new-lines...
137  void qsamplerMessages::appendStdoutBuffer ( const QString& s )  void Messages::appendStdoutBuffer ( const QString& s )
138  {  {
139      m_sStdoutBuffer.append(s);          m_sStdoutBuffer.append(s);
140    
141      int iLength = m_sStdoutBuffer.findRev('\n') + 1;          int iLength = m_sStdoutBuffer.lastIndexOf('\n');
142      if (iLength > 0) {          if (iLength > 0) {
143          QString sTemp = m_sStdoutBuffer.left(iLength);                  QString sTemp = m_sStdoutBuffer.left(iLength);
144          m_sStdoutBuffer.remove(0, iLength);                  m_sStdoutBuffer.remove(0, iLength + 1);
145          QStringList list = QStringList::split('\n', sTemp, true);                  QStringList list = sTemp.split('\n');
146          for (QStringList::Iterator iter = list.begin(); iter != list.end(); iter++)                  QStringListIterator iter(list);
147              appendMessagesText(*iter);                  while (iter.hasNext())
148      }                          appendMessagesText(iter.next());
149            }
150  }  }
151    
152    
153  // Stdout flusher -- show up any unfinished line...  // Stdout flusher -- show up any unfinished line...
154  void qsamplerMessages::flushStdoutBuffer (void)  void Messages::flushStdoutBuffer (void)
155  {  {
156      if (!m_sStdoutBuffer.isEmpty()) {          if (!m_sStdoutBuffer.isEmpty()) {
157          appendMessagesText(m_sStdoutBuffer);                  appendMessagesText(m_sStdoutBuffer);
158          m_sStdoutBuffer.truncate(0);                  m_sStdoutBuffer.truncate(0);
159      }          }
160  }  }
161    
162    
163  // Stdout capture accessors.  // Stdout capture accessors.
164  bool qsamplerMessages::isCaptureEnabled (void)  bool Messages::isCaptureEnabled (void)
165  {  {
166      return (bool) (m_pStdoutNotifier != NULL);          return (bool) (m_pStdoutNotifier != NULL);
167  }  }
168    
169  void qsamplerMessages::setCaptureEnabled ( bool bCapture )  void Messages::setCaptureEnabled ( bool bCapture )
170  {  {
171      // Flush current buffer.          // Flush current buffer.
172      flushStdoutBuffer();          flushStdoutBuffer();
173    
174  #if !defined(WIN32)  #if !defined(WIN32)
175      // Destroy if already enabled.          // Destroy if already enabled.
176      if (!bCapture && m_pStdoutNotifier) {          if (!bCapture && m_pStdoutNotifier) {
177          delete m_pStdoutNotifier;                  delete m_pStdoutNotifier;
178          m_pStdoutNotifier = NULL;                  m_pStdoutNotifier = NULL;
179          // Close the notification pipes.                  // Close the notification pipes.
180          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
181              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
182              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
183          }                  }
184          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
185              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
186              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
187          }                  }
188      }          }
189      // Are we going to make up the capture?          // Are we going to make up the capture?
190      if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
191          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);
192          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);
193          m_pStdoutNotifier = new QSocketNotifier(m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);                  m_pStdoutNotifier = new QSocketNotifier(
194          QObject::connect(m_pStdoutNotifier, SIGNAL(activated(int)), this, SLOT(stdoutNotify(int)));                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);
195      }                  QObject::connect(m_pStdoutNotifier,
196                            SIGNAL(activated(int)),
197                            SLOT(stdoutNotify(int)));
198            }
199  #endif  #endif
200  }  }
201    
202    
203  // Message font accessors.  // Message font accessors.
204  QFont qsamplerMessages::messagesFont (void)  QFont Messages::messagesFont (void)
205  {  {
206      return m_pTextView->font();          return m_pMessagesTextView->font();
207  }  }
208    
209  void qsamplerMessages::setMessagesFont( const QFont& font )  void Messages::setMessagesFont ( const QFont& font )
210  {  {
211      m_pTextView->setFont(font);          m_pMessagesTextView->setFont(font);
212  }  }
213    
214    
215  // Maximum number of message lines accessors.  // Maximum number of message lines accessors.
216  int qsamplerMessages::messagesLimit (void)  int Messages::messagesLimit (void)
217  {  {
218      return m_iMessagesLimit;          return m_iMessagesLimit;
219  }  }
220    
221  void qsamplerMessages::setMessagesLimit ( int iMessagesLimit )  void Messages::setMessagesLimit ( int iMessagesLimit )
222  {  {
223      m_iMessagesLimit = iMessagesLimit;          m_iMessagesLimit = iMessagesLimit;
224      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);          m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);
225  #if QT_VERSION >= 0x030200  }
226          m_pTextView->setMaxLogLines(iMessagesLimit);  
227  #endif  // Messages logging stuff.
228    bool Messages::isLogging (void) const
229    {
230            return (m_pMessagesLog != NULL);
231    }
232    
233    void Messages::setLogging ( bool bEnabled, const QString& sFilename )
234    {
235            if (m_pMessagesLog) {
236                    appendMessages(tr("Logging stopped --- %1 ---")
237                            .arg(QDateTime::currentDateTime().toString()));
238                    m_pMessagesLog->close();
239                    delete m_pMessagesLog;
240                    m_pMessagesLog = NULL;
241            }
242    
243            if (bEnabled) {
244                    m_pMessagesLog = new QFile(sFilename);
245                    if (m_pMessagesLog->open(QIODevice::Text | QIODevice::Append)) {
246                            appendMessages(tr("Logging started --- %1 ---")
247                                    .arg(QDateTime::currentDateTime().toString()));
248                    } else {
249                            delete m_pMessagesLog;
250                            m_pMessagesLog = NULL;
251                    }
252            }
253    }
254    
255    
256    // Messages log output method.
257    void Messages::appendMessagesLog ( const QString& s )
258    {
259            if (m_pMessagesLog) {
260                    QTextStream(m_pMessagesLog) << s << endl;
261                    m_pMessagesLog->flush();
262            }
263    }
264    
265    // Messages widget output method.
266    void Messages::appendMessagesLine ( const QString& s )
267    {
268            // Check for message line limit...
269            if (m_iMessagesLines > m_iMessagesHigh) {
270                    m_pMessagesTextView->setUpdatesEnabled(false);
271                    QTextCursor textCursor(m_pMessagesTextView->document()->begin());
272                    while (m_iMessagesLines > m_iMessagesLimit) {
273                            // Move cursor extending selection
274                            // from start to next line-block...
275                            textCursor.movePosition(
276                                    QTextCursor::NextBlock, QTextCursor::KeepAnchor);
277                            m_iMessagesLines--;
278                    }
279                    // Remove the excessive line-blocks...
280                    textCursor.removeSelectedText();
281                    m_pMessagesTextView->setUpdatesEnabled(true);
282            }
283    
284            m_pMessagesTextView->append(s);
285            m_iMessagesLines++;
286  }  }
287    
288    
289  // The main utility methods.  // The main utility methods.
290  void qsamplerMessages::appendMessages ( const QString& s )  void Messages::appendMessages ( const QString& s )
291  {  {
292      appendMessagesColor(s, "#999999");          appendMessagesColor(s, "#999999");
293  }  }
294    
295  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  void Messages::appendMessagesColor ( const QString& s, const QString &c )
296  {  {
297      appendMessagesText("<font color=\"" + c + "\">" + QTime::currentTime().toString("hh:mm:ss.zzz") + " " + s + "</font>");          QString sText = QTime::currentTime().toString("hh:mm:ss.zzz") + ' ' + s;
298            appendMessagesLine("<font color=\"" + c + "\">" + sText + "</font>");
299            appendMessagesLog(sText);
300  }  }
301    
302  void qsamplerMessages::appendMessagesText ( const QString& s )  void Messages::appendMessagesText ( const QString& s )
303  {  {
304  #if QT_VERSION < 0x030200          appendMessagesLine(s);
305      // 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);  
306  }  }
307    
308    
309  // One time scroll to the most recent message.  // History reset.
310  void qsamplerMessages::scrollToBottom (void)  void Messages::clear (void)
311  {  {
312      flushStdoutBuffer();          m_iMessagesLines = 0;
313      m_pTextView->scrollToBottom();          m_pMessagesTextView->clear();
314  }  }
315    
316    } // namespace QSampler
317    
318    
319  // end of qsamplerMessages.cpp  // end of qsamplerMessages.cpp
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