/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 339 by capela, Wed Jan 12 11:05:44 2005 UTC revision 1738 by capela, Wed May 14 15:24:22 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            // Surely a name is crucial (e.g.for storing geometry settings)
61            QDockWidget::setObjectName("qsamplerMessages");
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  #if QT_VERSION >= 0x030200  //      m_pMessagesTextView->setTextFormat(Qt::LogText);
77      m_pTextView->setTextFormat(Qt::LogText);  
78  #endif          // Initialize default message limit.
79      // Initialize default message limit.          m_iMessagesLines = 0;
80      setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);          setMessagesLimit(QSAMPLER_MESSAGES_MAXLINES);
81    
82      // Prepare the dockable window stuff.          m_pMessagesLog = NULL;
83      QDockWindow::setWidget(m_pTextView);  
84      QDockWindow::setOrientation(Qt::Horizontal);          // Prepare the dockable window stuff.
85      QDockWindow::setCloseMode(QDockWindow::Always);          QDockWidget::setWidget(m_pMessagesTextView);
86      QDockWindow::setResizeEnabled(true);          QDockWidget::setFeatures(QDockWidget::AllDockWidgetFeatures);
87            QDockWidget::setAllowedAreas(
88      // Finally set the default caption and tooltip.                  Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
89      QString sCaption = tr("Messages");          // Some specialties to this kind of dock window...
90      QToolTip::add(this, sCaption);          QDockWidget::setMinimumHeight(120);
91      QDockWindow::setCaption(sCaption);  
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            setLogging(false);
104    
105      // No more notifications.      // No more notifications.
106      if (m_pStdoutNotifier)      if (m_pStdoutNotifier)
107          delete m_pStdoutNotifier;          delete m_pStdoutNotifier;
# Line 98  qsamplerMessages::~qsamplerMessages (voi Line 110  qsamplerMessages::~qsamplerMessages (voi
110  }  }
111    
112    
113    void Messages::showEvent ( QShowEvent *pEvent )
114    {
115        QDockWidget::showEvent(pEvent);
116        emit visibilityChanged(isVisible());
117    }
118    
119    
120  // Own stdout/stderr socket notifier slot.  // Own stdout/stderr socket notifier slot.
121  void qsamplerMessages::stdoutNotify ( int fd )  void Messages::stdoutNotify ( int fd )
122  {  {
123  #if !defined(WIN32)  #if !defined(WIN32)
124      char achBuffer[1024];      char achBuffer[1024];
# Line 113  void qsamplerMessages::stdoutNotify ( in Line 132  void qsamplerMessages::stdoutNotify ( in
132    
133    
134  // Stdout buffer handler -- now splitted by complete new-lines...  // Stdout buffer handler -- now splitted by complete new-lines...
135  void qsamplerMessages::appendStdoutBuffer ( const QString& s )  void Messages::appendStdoutBuffer ( const QString& s )
136  {  {
137      m_sStdoutBuffer.append(s);          m_sStdoutBuffer.append(s);
138    
139      int iLength = m_sStdoutBuffer.findRev('\n') + 1;          int iLength = m_sStdoutBuffer.lastIndexOf('\n');
140      if (iLength > 0) {          if (iLength > 0) {
141          QString sTemp = m_sStdoutBuffer.left(iLength);                  QString sTemp = m_sStdoutBuffer.left(iLength);
142          m_sStdoutBuffer.remove(0, iLength);                  m_sStdoutBuffer.remove(0, iLength + 1);
143          QStringList list = QStringList::split('\n', sTemp, true);                  QStringList list = sTemp.split('\n');
144          for (QStringList::Iterator iter = list.begin(); iter != list.end(); iter++)                  QStringListIterator iter(list);
145              appendMessagesText(*iter);                  while (iter.hasNext())
146      }                          appendMessagesText(iter.next());
147            }
148  }  }
149    
150    
151  // Stdout flusher -- show up any unfinished line...  // Stdout flusher -- show up any unfinished line...
152  void qsamplerMessages::flushStdoutBuffer (void)  void Messages::flushStdoutBuffer (void)
153  {  {
154      if (!m_sStdoutBuffer.isEmpty()) {      if (!m_sStdoutBuffer.isEmpty()) {
155          appendMessagesText(m_sStdoutBuffer);          appendMessagesText(m_sStdoutBuffer);
# Line 139  void qsamplerMessages::flushStdoutBuffer Line 159  void qsamplerMessages::flushStdoutBuffer
159    
160    
161  // Stdout capture accessors.  // Stdout capture accessors.
162  bool qsamplerMessages::isCaptureEnabled (void)  bool Messages::isCaptureEnabled (void)
163  {  {
164      return (bool) (m_pStdoutNotifier != NULL);      return (bool) (m_pStdoutNotifier != NULL);
165  }  }
166    
167  void qsamplerMessages::setCaptureEnabled ( bool bCapture )  void Messages::setCaptureEnabled ( bool bCapture )
168  {  {
169      // Flush current buffer.      // Flush current buffer.
170      flushStdoutBuffer();      flushStdoutBuffer();
171    
172  #if !defined(WIN32)  #if !defined(WIN32)
173      // Destroy if already enabled.          // Destroy if already enabled.
174      if (!bCapture && m_pStdoutNotifier) {          if (!bCapture && m_pStdoutNotifier) {
175          delete m_pStdoutNotifier;                  delete m_pStdoutNotifier;
176          m_pStdoutNotifier = NULL;                  m_pStdoutNotifier = NULL;
177          // Close the notification pipes.                  // Close the notification pipes.
178          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
179              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
180              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
181          }                  }
182          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
183              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
184              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
185          }                  }
186      }          }
187      // Are we going to make up the capture?          // Are we going to make up the capture?
188      if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
189          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);
190          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);
191          m_pStdoutNotifier = new QSocketNotifier(m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);                  m_pStdoutNotifier = new QSocketNotifier(
192          QObject::connect(m_pStdoutNotifier, SIGNAL(activated(int)), this, SLOT(stdoutNotify(int)));                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);
193      }                  QObject::connect(m_pStdoutNotifier,
194                            SIGNAL(activated(int)),
195                            SLOT(stdoutNotify(int)));
196            }
197  #endif  #endif
198  }  }
199    
200    
201  // Message font accessors.  // Message font accessors.
202  QFont qsamplerMessages::messagesFont (void)  QFont Messages::messagesFont (void)
203  {  {
204      return m_pTextView->font();      return m_pMessagesTextView->font();
205  }  }
206    
207  void qsamplerMessages::setMessagesFont( const QFont& font )  void Messages::setMessagesFont ( const QFont& font )
208  {  {
209      m_pTextView->setFont(font);      m_pMessagesTextView->setFont(font);
210  }  }
211    
212    
213  // Maximum number of message lines accessors.  // Maximum number of message lines accessors.
214  int qsamplerMessages::messagesLimit (void)  int Messages::messagesLimit (void)
215  {  {
216      return m_iMessagesLimit;      return m_iMessagesLimit;
217  }  }
218    
219  void qsamplerMessages::setMessagesLimit ( int iMessagesLimit )  void Messages::setMessagesLimit ( int iMessagesLimit )
220  {  {
221      m_iMessagesLimit = iMessagesLimit;      m_iMessagesLimit = iMessagesLimit;
222      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);
223  #if QT_VERSION >= 0x030200  }
224          m_pTextView->setMaxLogLines(iMessagesLimit);  
225  #endif  // Messages logging stuff.
226    bool Messages::isLogging (void) const
227    {
228            return (m_pMessagesLog != NULL);
229    }
230    
231    void Messages::setLogging ( bool bEnabled, const QString& sFilename )
232    {
233            if (m_pMessagesLog) {
234                    appendMessages(tr("Logging stopped --- %1 ---")
235                            .arg(QDateTime::currentDateTime().toString()));
236                    m_pMessagesLog->close();
237                    delete m_pMessagesLog;
238                    m_pMessagesLog = NULL;
239            }
240    
241            if (bEnabled) {
242                    m_pMessagesLog = new QFile(sFilename);
243                    if (m_pMessagesLog->open(QIODevice::Text | QIODevice::Append)) {
244                            appendMessages(tr("Logging started --- %1 ---")
245                                    .arg(QDateTime::currentDateTime().toString()));
246                    } else {
247                            delete m_pMessagesLog;
248                            m_pMessagesLog = NULL;
249                    }
250            }
251    }
252    
253    
254    // Messages log output method.
255    void Messages::appendMessagesLog ( const QString& s )
256    {
257            if (m_pMessagesLog) {
258                    QTextStream(m_pMessagesLog) << s << endl;
259                    m_pMessagesLog->flush();
260            }
261    }
262    
263    // Messages widget output method.
264    void Messages::appendMessagesLine ( const QString& s )
265    {
266            // Check for message line limit...
267            if (m_iMessagesLines > m_iMessagesHigh) {
268                    m_pMessagesTextView->setUpdatesEnabled(false);
269                    QTextCursor textCursor(m_pMessagesTextView->document()->begin());
270                    while (m_iMessagesLines > m_iMessagesLimit) {
271                            // Move cursor extending selection
272                            // from start to next line-block...
273                            textCursor.movePosition(
274                                    QTextCursor::NextBlock, QTextCursor::KeepAnchor);
275                            m_iMessagesLines--;
276                    }
277                    // Remove the excessive line-blocks...
278                    textCursor.removeSelectedText();
279                    m_pMessagesTextView->setUpdatesEnabled(true);
280            }
281    
282            m_pMessagesTextView->append(s);
283            m_iMessagesLines++;
284  }  }
285    
286    
287  // The main utility methods.  // The main utility methods.
288  void qsamplerMessages::appendMessages ( const QString& s )  void Messages::appendMessages ( const QString& s )
289  {  {
290      appendMessagesColor(s, "#999999");      appendMessagesColor(s, "#999999");
291  }  }
292    
293  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  void Messages::appendMessagesColor ( const QString& s, const QString &c )
294  {  {
295      appendMessagesText("<font color=\"" + c + "\">" + QTime::currentTime().toString("hh:mm:ss.zzz") + " " + s + "</font>");          QString sText = QTime::currentTime().toString("hh:mm:ss.zzz") + ' ' + s;
296            
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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