/[svn]/qsampler/trunk/src/qsamplerMessages.cpp
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revision 338 by capela, Wed Jan 12 10:43:37 2005 UTC revision 2459 by capela, Mon Jul 8 10:06:57 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);
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.          // No need to delete child widgets, Qt does it all for us.
111  }  }
112    
113    
114  // Own stdout/stderr socket notifier slot.  // Own stdout/stderr socket notifier slot.
115  void qsamplerMessages::stdoutNotify ( int fd )  void Messages::stdoutNotify ( int fd )
116  {  {
117  #if !defined(WIN32)  #if !defined(WIN32)
118      char achBuffer[1024];          char achBuffer[1024];
119      int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);          int  cchBuffer = ::read(fd, achBuffer, sizeof(achBuffer) - 1);
120      if (cchBuffer > 0) {          if (cchBuffer > 0) {
121          achBuffer[cchBuffer] = (char) 0;                  achBuffer[cchBuffer] = (char) 0;
122          appendStdoutBuffer(achBuffer);                  appendStdoutBuffer(achBuffer);
123      }          }
124  #endif  #endif
125  }  }
126    
127    
128  // Stdout buffer handler -- now splitted by complete new-lines...  // Stdout buffer handler -- now splitted by complete new-lines...
129  void qsamplerMessages::appendStdoutBuffer ( const QString& s )  void Messages::appendStdoutBuffer ( const QString& s )
130  {  {
131      m_sStdoutBuffer.append(s);          m_sStdoutBuffer.append(s);
132    
133      int iLength = m_sStdoutBuffer.findRev('\n') + 1;          int iLength = m_sStdoutBuffer.lastIndexOf('\n');
134      if (iLength > 0) {          if (iLength > 0) {
135          QString sTemp = m_sStdoutBuffer.left(iLength);                  QString sTemp = m_sStdoutBuffer.left(iLength);
136          m_sStdoutBuffer.remove(0, iLength);                  m_sStdoutBuffer.remove(0, iLength + 1);
137          QStringList list = QStringList::split('\n', sTemp, true);                  QStringList list = sTemp.split('\n');
138          for (QStringList::Iterator iter = list.begin(); iter != list.end(); iter++)                  QStringListIterator iter(list);
139              appendMessagesText(*iter);                  while (iter.hasNext())
140      }                          appendMessagesText(iter.next());
141            }
142  }  }
143    
144    
145  // Stdout flusher -- show up any unfinished line...  // Stdout flusher -- show up any unfinished line...
146  void qsamplerMessages::flushStdoutBuffer (void)  void Messages::flushStdoutBuffer (void)
147  {  {
148      if (!m_sStdoutBuffer.isEmpty()) {          if (!m_sStdoutBuffer.isEmpty()) {
149          appendMessagesText(m_sStdoutBuffer);                  appendMessagesText(m_sStdoutBuffer);
150          m_sStdoutBuffer.truncate(0);                  m_sStdoutBuffer.truncate(0);
151      }          }
152  }  }
153    
154    
155  // Stdout capture accessors.  // Stdout capture accessors.
156  bool qsamplerMessages::isCaptureEnabled (void)  bool Messages::isCaptureEnabled (void)
157  {  {
158      return (bool) (m_pStdoutNotifier != NULL);          return (bool) (m_pStdoutNotifier != NULL);
159  }  }
160    
161  void qsamplerMessages::setCaptureEnabled ( bool bCapture )  void Messages::setCaptureEnabled ( bool bCapture )
162  {  {
163      // Flush current buffer.          // Flush current buffer.
164      flushStdoutBuffer();          flushStdoutBuffer();
165    
166  #if !defined(WIN32)  #if !defined(WIN32)
167      // Destroy if already enabled.          // Destroy if already enabled.
168      if (!bCapture && m_pStdoutNotifier) {          if (!bCapture && m_pStdoutNotifier) {
169          delete m_pStdoutNotifier;                  delete m_pStdoutNotifier;
170          m_pStdoutNotifier = NULL;                  m_pStdoutNotifier = NULL;
171          // Close the notification pipes.                  // Close the notification pipes.
172          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
173              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
174              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
175          }                  }
176          if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {                  if (m_fdStdout[QSAMPLER_MESSAGES_FDREAD] != QSAMPLER_MESSAGES_FDNIL) {
177              ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);                          ::close(m_fdStdout[QSAMPLER_MESSAGES_FDREAD]);
178              m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD]  = QSAMPLER_MESSAGES_FDNIL;
179          }                  }
180      }          }
181      // Are we going to make up the capture?          // Are we going to make up the capture?
182      if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {          if (bCapture && m_pStdoutNotifier == NULL && ::pipe(m_fdStdout) == 0) {
183          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDOUT_FILENO);
184          ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);                  ::dup2(m_fdStdout[QSAMPLER_MESSAGES_FDWRITE], STDERR_FILENO);
185          m_pStdoutNotifier = new QSocketNotifier(m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);                  m_pStdoutNotifier = new QSocketNotifier(
186          QObject::connect(m_pStdoutNotifier, SIGNAL(activated(int)), this, SLOT(stdoutNotify(int)));                          m_fdStdout[QSAMPLER_MESSAGES_FDREAD], QSocketNotifier::Read, this);
187      }                  QObject::connect(m_pStdoutNotifier,
188                            SIGNAL(activated(int)),
189                            SLOT(stdoutNotify(int)));
190            }
191  #endif  #endif
192  }  }
193    
194    
195  // Message font accessors.  // Message font accessors.
196  QFont qsamplerMessages::messagesFont (void)  QFont Messages::messagesFont (void)
197  {  {
198      return m_pTextView->font();          return m_pMessagesTextView->font();
199  }  }
200    
201  void qsamplerMessages::setMessagesFont( const QFont& font )  void Messages::setMessagesFont ( const QFont& font )
202  {  {
203      m_pTextView->setFont(font);          m_pMessagesTextView->setFont(font);
204  }  }
205    
206    
207  // Maximum number of message lines accessors.  // Maximum number of message lines accessors.
208  int qsamplerMessages::messagesLimit (void)  int Messages::messagesLimit (void)
209  {  {
210      return m_iMessagesLimit;          return m_iMessagesLimit;
211  }  }
212    
213  void qsamplerMessages::setMessagesLimit ( int iMessagesLimit )  void Messages::setMessagesLimit ( int iMessagesLimit )
214  {  {
215      m_iMessagesLimit = iMessagesLimit;          m_iMessagesLimit = iMessagesLimit;
216      m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);          m_iMessagesHigh  = iMessagesLimit + (iMessagesLimit / 3);
217  #if QT_VERSION >= 0x030200  }
218          m_pTextView->setMaxLogLines(iMessagesLimit);  
219  #endif  // Messages logging stuff.
220    bool Messages::isLogging (void) const
221    {
222            return (m_pMessagesLog != NULL);
223    }
224    
225    void Messages::setLogging ( bool bEnabled, const QString& sFilename )
226    {
227            if (m_pMessagesLog) {
228                    appendMessages(tr("Logging stopped --- %1 ---")
229                            .arg(QDateTime::currentDateTime().toString()));
230                    m_pMessagesLog->close();
231                    delete m_pMessagesLog;
232                    m_pMessagesLog = NULL;
233            }
234    
235            if (bEnabled) {
236                    m_pMessagesLog = new QFile(sFilename);
237                    if (m_pMessagesLog->open(QIODevice::Text | QIODevice::Append)) {
238                            appendMessages(tr("Logging started --- %1 ---")
239                                    .arg(QDateTime::currentDateTime().toString()));
240                    } else {
241                            delete m_pMessagesLog;
242                            m_pMessagesLog = NULL;
243                    }
244            }
245    }
246    
247    
248    // Messages log output method.
249    void Messages::appendMessagesLog ( const QString& s )
250    {
251            if (m_pMessagesLog) {
252                    QTextStream(m_pMessagesLog) << s << endl;
253                    m_pMessagesLog->flush();
254            }
255    }
256    
257    // Messages widget output method.
258    void Messages::appendMessagesLine ( const QString& s )
259    {
260            // Check for message line limit...
261            if (m_iMessagesLines > m_iMessagesHigh) {
262                    m_pMessagesTextView->setUpdatesEnabled(false);
263                    QTextCursor textCursor(m_pMessagesTextView->document()->begin());
264                    while (m_iMessagesLines > m_iMessagesLimit) {
265                            // Move cursor extending selection
266                            // from start to next line-block...
267                            textCursor.movePosition(
268                                    QTextCursor::NextBlock, QTextCursor::KeepAnchor);
269                            m_iMessagesLines--;
270                    }
271                    // Remove the excessive line-blocks...
272                    textCursor.removeSelectedText();
273                    m_pMessagesTextView->setUpdatesEnabled(true);
274            }
275    
276            m_pMessagesTextView->append(s);
277            m_iMessagesLines++;
278  }  }
279    
280    
281  // The main utility methods.  // The main utility methods.
282  void qsamplerMessages::appendMessages ( const QString& s )  void Messages::appendMessages ( const QString& s )
283  {  {
284      appendMessagesColor(s, "#999999");          appendMessagesColor(s, "#999999");
285  }  }
286    
287  void qsamplerMessages::appendMessagesColor ( const QString& s, const QString &c )  void Messages::appendMessagesColor ( const QString& s, const QString &c )
288  {  {
289      appendMessagesText("<font color=\"" + c + "\">" + QTime::currentTime().toString("hh:mm:ss.zzz") + " " + s + "</font>");          QString sText = QTime::currentTime().toString("hh:mm:ss.zzz") + ' ' + s;
290            appendMessagesLine("<font color=\"" + c + "\">" + sText + "</font>");
291            appendMessagesLog(sText);
292  }  }
293    
294  void qsamplerMessages::appendMessagesText ( const QString& s )  void Messages::appendMessagesText ( const QString& s )
295  {  {
296  #if QT_VERSION < 0x030200          appendMessagesLine(s);
297      // 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);  
298  }  }
299    
300    
301  // One time scroll to the most recent message.  // History reset.
302  void qsamplerMessages::scrollToBottom (void)  void Messages::clear (void)
303  {  {
304      flushStdoutBuffer();          m_iMessagesLines = 0;
305      m_pTextView->scrollToBottom();          m_pMessagesTextView->clear();
306  }  }
307    
308    } // namespace QSampler
309    
310    
311  // end of qsamplerMessages.cpp  // end of qsamplerMessages.cpp
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