/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 338 by capela, Wed Jan 12 10:43:37 2005 UTC revision 1739 by capela, Wed May 14 17:37:45 2008 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) 2004-2008, 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);
105          delete m_pStdoutNotifier;  
106            // 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      // No need to delete child widgets, Qt does it all for us.  
114    void Messages::showEvent ( QShowEvent *pEvent )
115    {
116            QDockWidget::showEvent(pEvent);
117            emit visibilityChanged(isVisible());
118  }  }
119    
120    
121  // Own stdout/stderr socket notifier slot.  // Own stdout/stderr socket notifier slot.
122  void qsamplerMessages::stdoutNotify ( int fd )  void Messages::stdoutNotify ( int fd )
123  {  {
124  #if !defined(WIN32)  #if !defined(WIN32)
125      char achBuffer[1024];          char achBuffer[1024];
126      int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);          int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);
127      if (cchBuffer > 0) {          if (cchBuffer > 0) {
128          achBuffer[cchBuffer] = (char) 0;                  achBuffer[cchBuffer] = (char) 0;
129          appendStdoutBuffer(achBuffer);                  appendStdoutBuffer(achBuffer);
130      }          }
131  #endif  #endif
132  }  }
133    
134    
135  // Stdout buffer handler -- now splitted by complete new-lines...  // Stdout buffer handler -- now splitted by complete new-lines...
136  void qsamplerMessages::appendStdoutBuffer ( const QString& s )  void Messages::appendStdoutBuffer ( const QString& s )
137  {  {
138      m_sStdoutBuffer.append(s);          m_sStdoutBuffer.append(s);
139    
140      int iLength = m_sStdoutBuffer.findRev('\n') + 1;          int iLength = m_sStdoutBuffer.lastIndexOf('\n');
141      if (iLength > 0) {          if (iLength > 0) {
142          QString sTemp = m_sStdoutBuffer.left(iLength);                  QString sTemp = m_sStdoutBuffer.left(iLength);
143          m_sStdoutBuffer.remove(0, iLength);                  m_sStdoutBuffer.remove(0, iLength + 1);
144          QStringList list = QStringList::split('\n', sTemp, true);                  QStringList list = sTemp.split('\n');
145          for (QStringList::Iterator iter = list.begin(); iter != list.end(); iter++)                  QStringListIterator iter(list);
146              appendMessagesText(*iter);                  while (iter.hasNext())
147      }                          appendMessagesText(iter.next());
148            }
149  }  }
150    
151    
152  // Stdout flusher -- show up any unfinished line...  // Stdout flusher -- show up any unfinished line...
153  void qsamplerMessages::flushStdoutBuffer (void)  void Messages::flushStdoutBuffer (void)
154  {  {
155      if (!m_sStdoutBuffer.isEmpty()) {          if (!m_sStdoutBuffer.isEmpty()) {
156          appendMessagesText(m_sStdoutBuffer);                  appendMessagesText(m_sStdoutBuffer);
157          m_sStdoutBuffer.truncate(0);                  m_sStdoutBuffer.truncate(0);
158      }          }
159  }  }
160    
161    
162  // Stdout capture accessors.  // Stdout capture accessors.
163  bool qsamplerMessages::isCaptureEnabled (void)  bool Messages::isCaptureEnabled (void)
164  {  {
165      return (bool) (m_pStdoutNotifier != NULL);          return (bool) (m_pStdoutNotifier != NULL);
166  }  }
167    
168  void qsamplerMessages::setCaptureEnabled ( bool bCapture )  void Messages::setCaptureEnabled ( bool bCapture )
169  {  {
170      // Flush current buffer.          // Flush current buffer.
171      flushStdoutBuffer();          flushStdoutBuffer();
172    
173  #if !defined(WIN32)  #if !defined(WIN32)
174      // Destroy if already enabled.          // Destroy if already enabled.
175      if (!bCapture && m_pStdoutNotifier) {          if (!bCapture && m_pStdoutNotifier) {
176          delete m_pStdoutNotifier;                  delete m_pStdoutNotifier;
177          m_pStdoutNotifier = NULL;                  m_pStdoutNotifier = NULL;
178          // Close the notification pipes.                  // Close the notification pipes.
179          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
180              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
181              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
182          }                  }
183          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
184              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
185              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
186          }                  }
187      }          }
188      // Are we going to make up the capture?          // Are we going to make up the capture?
189      if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
190          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);
191          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);
192          m_pStdoutNotifier = new QSocketNotifier(m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);                  m_pStdoutNotifier = new QSocketNotifier(
193          QObject::connect(m_pStdoutNotifier, SIGNAL(activated(int)), this, SLOT(stdoutNotify(int)));                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);
194      }                  QObject::connect(m_pStdoutNotifier,
195                            SIGNAL(activated(int)),
196                            SLOT(stdoutNotify(int)));
197            }
198  #endif  #endif
199  }  }
200    
201    
202  // Message font accessors.  // Message font accessors.
203  QFont qsamplerMessages::messagesFont (void)  QFont Messages::messagesFont (void)
204  {  {
205      return m_pTextView->font();          return m_pMessagesTextView->font();
206  }  }
207    
208  void qsamplerMessages::setMessagesFont( const QFont& font )  void Messages::setMessagesFont ( const QFont& font )
209  {  {
210      m_pTextView->setFont(font);          m_pMessagesTextView->setFont(font);
211  }  }
212    
213    
214  // Maximum number of message lines accessors.  // Maximum number of message lines accessors.
215  int qsamplerMessages::messagesLimit (void)  int Messages::messagesLimit (void)
216  {  {
217      return m_iMessagesLimit;          return m_iMessagesLimit;
218  }  }
219    
220  void qsamplerMessages::setMessagesLimit ( int iMessagesLimit )  void Messages::setMessagesLimit ( int iMessagesLimit )
221  {  {
222      m_iMessagesLimit = iMessagesLimit;          m_iMessagesLimit = iMessagesLimit;
223      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);          m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);
224  #if QT_VERSION >= 0x030200  }
225          m_pTextView->setMaxLogLines(iMessagesLimit);  
226  #endif  // Messages logging stuff.
227    bool Messages::isLogging (void) const
228    {
229            return (m_pMessagesLog != NULL);
230    }
231    
232    void Messages::setLogging ( bool bEnabled, const QString& sFilename )
233    {
234            if (m_pMessagesLog) {
235                    appendMessages(tr("Logging stopped --- %1 ---")
236                            .arg(QDateTime::currentDateTime().toString()));
237                    m_pMessagesLog->close();
238                    delete m_pMessagesLog;
239                    m_pMessagesLog = NULL;
240            }
241    
242            if (bEnabled) {
243                    m_pMessagesLog = new QFile(sFilename);
244                    if (m_pMessagesLog->open(QIODevice::Text | QIODevice::Append)) {
245                            appendMessages(tr("Logging started --- %1 ---")
246                                    .arg(QDateTime::currentDateTime().toString()));
247                    } else {
248                            delete m_pMessagesLog;
249                            m_pMessagesLog = NULL;
250                    }
251            }
252    }
253    
254    
255    // Messages log output method.
256    void Messages::appendMessagesLog ( const QString& s )
257    {
258            if (m_pMessagesLog) {
259                    QTextStream(m_pMessagesLog) << s << endl;
260                    m_pMessagesLog->flush();
261            }
262    }
263    
264    // Messages widget output method.
265    void Messages::appendMessagesLine ( const QString& s )
266    {
267            // Check for message line limit...
268            if (m_iMessagesLines > m_iMessagesHigh) {
269                    m_pMessagesTextView->setUpdatesEnabled(false);
270                    QTextCursor textCursor(m_pMessagesTextView->document()->begin());
271                    while (m_iMessagesLines > m_iMessagesLimit) {
272                            // Move cursor extending selection
273                            // from start to next line-block...
274                            textCursor.movePosition(
275                                    QTextCursor::NextBlock, QTextCursor::KeepAnchor);
276                            m_iMessagesLines--;
277                    }
278                    // Remove the excessive line-blocks...
279                    textCursor.removeSelectedText();
280                    m_pMessagesTextView->setUpdatesEnabled(true);
281            }
282    
283            m_pMessagesTextView->append(s);
284            m_iMessagesLines++;
285  }  }
286    
287    
288  // The main utility methods.  // The main utility methods.
289  void qsamplerMessages::appendMessages ( const QString& s )  void Messages::appendMessages ( const QString& s )
290  {  {
291      appendMessagesColor(s, "#999999");          appendMessagesColor(s, "#999999");
292  }  }
293    
294  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  void Messages::appendMessagesColor ( const QString& s, const QString &c )
295  {  {
296      appendMessagesText("<font color=\"" + c + "\">" + QTime::currentTime().toString("hh:mm:ss.zzz") + " " + s + "</font>");          QString sText = QTime::currentTime().toString("hh:mm:ss.zzz") + ' ' + s;
297            appendMessagesLine("<font color=\"" + c + "\">" + sText + "</font>");
298            appendMessagesLog(sText);
299  }  }
300    
301  void qsamplerMessages::appendMessagesText ( const QString& s )  void Messages::appendMessagesText ( const QString& s )
302  {  {
303  #if QT_VERSION < 0x030200          appendMessagesLine(s);
304      // 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);  
305  }  }
306    
307    
308  // One time scroll to the most recent message.  // History reset.
309  void qsamplerMessages::scrollToBottom (void)  void Messages::clear (void)
310  {  {
311      flushStdoutBuffer();          m_iMessagesLines = 0;
312      m_pTextView->scrollToBottom();          m_pMessagesTextView->clear();
313  }  }
314    
315    } // namespace QSampler
316    
317    
318  // end of qsamplerMessages.cpp  // end of qsamplerMessages.cpp
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