summaryrefslogtreecommitdiffstats
path: root/ksysguard/gui/Workspace.cc
blob: 3c1a92a56313a35d5fc8cc99a6558ed6babc6de3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
/*
    KSysGuard, the KDE System Guard

    Copyright (c) 1999 - 2002 Chris Schlaeger <cs@kde.org>

    This program is free software; you can redistribute it and/or
    modify it under the terms of version 2 of the GNU General Public
    License as published by the Free Software Foundation.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

    KSysGuard is currently maintained by Chris Schlaeger <cs@kde.org>.
    Please do not commit any changes without consulting me first. Thanks!

*/

#include <tqlineedit.h>
#include <tqspinbox.h>
#include <tqwhatsthis.h>

#include <kdebug.h>
#include <kfiledialog.h>
#include <kio/netaccess.h>
#include <klocale.h>
#include <kmessagebox.h>
#include <kstandarddirs.h>
#include <kaccelmanager.h>

#include "WorkSheet.h"
#include "WorkSheetSettings.h"
#include "ProcessController.h"

#include "Workspace.h"

Workspace::Workspace( TQWidget* parent, const char* name )
  : TQTabWidget( parent, name )
{
  KAcceleratorManager::setNoAccel(this);
 
  mSheetList.setAutoDelete( true );
  mAutoSave = true;

  connect( this, TQT_SIGNAL( currentChanged( TQWidget* ) ),
           TQT_SLOT( updateCaption( TQWidget* ) ) );

  TQWhatsThis::add( this, i18n( "This is your work space. It holds your worksheets. You need "
                               "to create a new worksheet (Menu File->New) before "
                               "you can drag sensors here." ) );
}

Workspace::~Workspace()
{
  /* This workaround is necessary to prevent a crash when the last
   * page is not the current page. It seems like the the signal/slot
   * administration data is already deleted but slots are still
   * being triggered. TODO: I need to ask the Trolls about this. */

  disconnect( this, TQT_SIGNAL( currentChanged( TQWidget* ) ), this,
              TQT_SLOT( updateCaption( TQWidget* ) ) );
}

void Workspace::saveProperties( KConfig *cfg )
{
  cfg->writePathEntry( "WorkDir", mWorkDir );
  cfg->writeEntry( "CurrentSheet", tabLabel( currentPage() ) );

  TQPtrListIterator<WorkSheet> it( mSheetList);

  TQStringList list;
  for ( int i = 0; it.current(); ++it, ++i )
    if ( !(*it)->fileName().isEmpty() )
      list.append( (*it)->fileName() );

  cfg->writePathEntry( "Sheets", list );
}

void Workspace::readProperties( KConfig *cfg )
{
  TQString currentSheet;

  mWorkDir = cfg->readPathEntry( "WorkDir" );

  if ( mWorkDir.isEmpty() ) {
    /* If workDir is not specified in the config file, it's
     * probably the first time the user has started KSysGuard. We
     * then "restore" a special default configuration. */
    KStandardDirs* kstd = KGlobal::dirs();
    kstd->addResourceType( "data", "share/apps/ksysguard" );

    mWorkDir = kstd->saveLocation( "data", "ksysguard" );

    TQString origFile = kstd->findResource( "data", "SystemLoad.sgrd" );
    TQString newFile = mWorkDir + "/" + i18n( "System Load" ) + ".sgrd";
    if ( !origFile.isEmpty() )
      restoreWorkSheet( origFile, newFile );

    origFile = kstd->findResource( "data", "ProcessTable.sgrd" );
    newFile = mWorkDir + "/" + i18n( "Process Table" ) + ".sgrd";
    if ( !origFile.isEmpty() )
      restoreWorkSheet( origFile, newFile );

    currentSheet = i18n( "System Load" );
  } else {
    currentSheet = cfg->readEntry( "CurrentSheet" );
    TQStringList list = cfg->readPathListEntry( "Sheets" );
    for ( TQStringList::Iterator it = list.begin(); it != list.end(); ++it )
      restoreWorkSheet( *it );
  }

  // Determine visible sheet.
  TQPtrListIterator<WorkSheet> it( mSheetList );
  for ( ; it.current(); ++it )
    if ( currentSheet == tabLabel(*it) ) {
      showPage( *it );
      break;
    }
}

void Workspace::newWorkSheet()
{
  /* Find a name of the form "Sheet %d" that is not yet used by any
   * of the existing worksheets. */
  TQString sheetName;
  bool found;

  int i = 1;
  do {
    sheetName = i18n( "Sheet %1" ).arg( i++ );
    TQPtrListIterator<WorkSheet> it( mSheetList );
    found = false;
    for ( ; it.current() && !found; ++it )
      if ( tabLabel(*it) == sheetName )
        found = true;
  } while ( found );

  WorkSheetSettings dlg( this );
  dlg.setSheetTitle( sheetName );
  if ( dlg.exec() ) {
    WorkSheet* sheet = new WorkSheet( dlg.rows(), dlg.columns(), dlg.interval(), this );
    sheet->setTitle( dlg.sheetTitle() );
    insertTab( sheet, dlg.sheetTitle() );
    mSheetList.append( sheet );
    showPage( sheet );
    connect( sheet, TQT_SIGNAL( sheetModified( TQWidget* ) ),
             TQT_SLOT( updateCaption( TQWidget* ) ) );
    connect( sheet, TQT_SIGNAL( titleChanged( TQWidget* ) ),
             TQT_SLOT( updateSheetTitle( TQWidget* ) ) );
  }
}

bool Workspace::saveOnQuit()
{
  TQPtrListIterator<WorkSheet> it( mSheetList );
  for ( ; it.current(); ++it )
    if ( (*it)->modified() ) {
      if ( !mAutoSave || (*it)->fileName().isEmpty() ) {
        int res = KMessageBox::warningYesNoCancel( this,
                  i18n( "The worksheet '%1' contains unsaved data.\n"
                        "Do you want to save the worksheet?")
                  .arg( tabLabel( *it ) ), TQString::null, KStdGuiItem::save(), KStdGuiItem::discard() );
        if ( res == KMessageBox::Yes )
          saveWorkSheet( *it );
        else if ( res == KMessageBox::Cancel )
          return false; // abort quit
      } else
        saveWorkSheet(*it);
    }

  return true;
}

void Workspace::loadWorkSheet()
{
  KFileDialog dlg( 0, i18n( "*.sgrd|Sensor Files" ), this,
                   "LoadFileDialog", true );

  KURL url = dlg.getOpenURL( mWorkDir, "*.sgrd", 0, i18n( "Select Worksheet to Load" ) );

  loadWorkSheet( url );
}

void Workspace::loadWorkSheet( const KURL &url )
{
  if ( url.isEmpty() )
    return;

  /* It's probably not worth the effort to make this really network
   * transparent. Unless s/o beats me up I use this pseudo transparent
   * code. */
  TQString tmpFile;
  KIO::NetAccess::download( url, tmpFile, this );
  mWorkDir = tmpFile.left( tmpFile.findRev( '/' ) );

  // Load sheet from file.
  if ( !restoreWorkSheet( tmpFile ) )
    return;

  /* If we have loaded a non-local file we clear the file name so that
   * the users is prompted for a new name for saving the file. */
  KURL tmpFileUrl;
  tmpFileUrl.setPath( tmpFile );
  if ( tmpFileUrl != url.url() )
    mSheetList.last()->setFileName( TQString::null );
  KIO::NetAccess::removeTempFile( tmpFile );

  emit announceRecentURL( KURL( url ) );
}

void Workspace::saveWorkSheet()
{
  saveWorkSheet( (WorkSheet*)currentPage() );
}

void Workspace::saveWorkSheetAs()
{
  saveWorkSheetAs( (WorkSheet*)currentPage() );
}

void Workspace::saveWorkSheet( WorkSheet *sheet )
{
  if ( !sheet ) {
    KMessageBox::sorry( this, i18n( "You do not have a worksheet that could be saved." ) );
    return;
  }

  TQString fileName = sheet->fileName();
  if ( fileName.isEmpty() ) {
    KFileDialog dlg( 0, i18n( "*.sgrd|Sensor Files" ), this,
                     "LoadFileDialog", true );
    fileName = dlg.getSaveFileName( mWorkDir + "/" + tabLabel( sheet ) +
                                    ".sgrd", "*.sgrd", 0,
                                    i18n( "Save Current Worksheet As" ) );
    if ( fileName.isEmpty() )
      return;

    mWorkDir = fileName.left( fileName.findRev( '/' ) );

    // extract filename without path
    TQString baseName = fileName.right( fileName.length() - fileName.findRev( '/' ) - 1 );

    // chop off extension (usually '.sgrd')
    baseName = baseName.left( baseName.findRev( '.' ) );
    changeTab( sheet, baseName );
  }

  /* If we cannot save the file is probably write protected. So we need
   * to ask the user for a new name. */
  if ( !sheet->save( fileName ) ) {
    saveWorkSheetAs( sheet );
    return;
  }

  /* Add file to recent documents menue. */
  KURL url;
  url.setPath( fileName );
  emit announceRecentURL( url );
}

void Workspace::saveWorkSheetAs( WorkSheet *sheet )
{
  if ( !sheet ) {
    KMessageBox::sorry( this, i18n( "You do not have a worksheet that could be saved." ) );
    return;
  }

  TQString fileName;
  do {
    KFileDialog dlg( 0, "*.sgrd", this, "LoadFileDialog", true );
    fileName = dlg.getSaveFileName( mWorkDir + "/" + tabLabel( currentPage() ) +
                                    ".sgrd", "*.sgrd" );
    if ( fileName.isEmpty() )
      return;

    mWorkDir = fileName.left( fileName.findRev( '/' ) );

    // extract filename without path
    TQString baseName = fileName.right( fileName.length() - fileName.findRev( '/' ) - 1 );

    // chop off extension (usually '.sgrd')
    baseName = baseName.left( baseName.findRev( '.' ) );
    changeTab( sheet, baseName );
  } while ( !sheet->save( fileName ) );

  /* Add file to recent documents menue. */
  KURL url;
  url.setPath( fileName );
  emit announceRecentURL( url );
}

void Workspace::deleteWorkSheet()
{
  WorkSheet *current = (WorkSheet*)currentPage();

  if ( current ) {
    if ( current->modified() ) {
      if ( !mAutoSave || current->fileName().isEmpty() ) {
        int res = KMessageBox::warningYesNoCancel( this,
                            i18n( "The worksheet '%1' contains unsaved data.\n"
                                  "Do you want to save the worksheet?" )
                            .arg( tabLabel( current ) ), TQString::null, KStdGuiItem::save(), KStdGuiItem::discard() );
        if ( res == KMessageBox::Cancel )
          return;

        if ( res == KMessageBox::Yes )
          saveWorkSheet( current );
      } else
        saveWorkSheet( current );
    }

    removePage( current );
    mSheetList.remove( current );
  } else {
    TQString msg = i18n( "There are no worksheets that could be deleted." );
    KMessageBox::error( this, msg );
  }
}

void Workspace::removeAllWorkSheets()
{
  WorkSheet *sheet;
  while ( ( sheet = (WorkSheet*)currentPage() ) != 0 ) {
    removePage( sheet );
    mSheetList.remove( sheet );
  }
}

void Workspace::deleteWorkSheet( const TQString &fileName )
{
  TQPtrListIterator<WorkSheet> it( mSheetList );
  for ( ; it.current(); ++it )
    if ( (*it)->fileName() == fileName ) {
      removePage( *it );
      mSheetList.remove( *it );
      return;
    }
}

WorkSheet *Workspace::restoreWorkSheet( const TQString &fileName, const TQString &newName )
{
  /* We might want to save the worksheet under a different name later. This
   * name can be specified by newName. If newName is empty we use the
   * original name to save the work sheet. */
  TQString tmpStr;
  if ( newName.isEmpty() )
    tmpStr = fileName;
  else
    tmpStr = newName;

  // extract filename without path
  TQString baseName = tmpStr.right( tmpStr.length() - tmpStr.findRev( '/' ) - 1 );

  // chop off extension (usually '.sgrd')
  baseName = baseName.left( baseName.findRev( '.' ) );

  WorkSheet *sheet = new WorkSheet( this );
  sheet->setTitle( baseName );
  insertTab( sheet, baseName );
  showPage( sheet );

  if ( !sheet->load( fileName ) ) {
    delete sheet;
    return NULL;
  }
  
  mSheetList.append( sheet );
  connect( sheet, TQT_SIGNAL( sheetModified( TQWidget* ) ),
           TQT_SLOT( updateCaption( TQWidget* ) ) );

  /* Force the file name to be the new name. This also sets the modified
   * flag, so that the file will get saved on exit. */
  if ( !newName.isEmpty() )
    sheet->setFileName( newName );

  return sheet;
}

void Workspace::cut()
{
  WorkSheet *current = (WorkSheet*)currentPage();

  if ( current )
    current->cut();
}

void Workspace::copy()
{
  WorkSheet *current = (WorkSheet*)currentPage();

  if ( current )
    current->copy();
}

void Workspace::paste()
{
  WorkSheet *current = (WorkSheet*)currentPage();

  if ( current )
    current->paste();
}

void Workspace::configure()
{
  WorkSheet *current = (WorkSheet*)currentPage();

  if ( !current )
    return;

  current->settings();
}

void Workspace::updateCaption( TQWidget* wdg )
{
  if ( wdg )
    emit setCaption( tabLabel( wdg ), ((WorkSheet*)wdg)->modified() );
  else
    emit setCaption( TQString::null, false );

  for ( WorkSheet* s = mSheetList.first(); s != 0; s = mSheetList.next() )
    ((WorkSheet*)s)->setIsOnTop( s == wdg );
}

void Workspace::updateSheetTitle( TQWidget* wdg )
{
  if ( wdg )
    changeTab( wdg, static_cast<WorkSheet*>( wdg )->title() );
}

void Workspace::applyStyle()
{
  if ( currentPage() )
    ((WorkSheet*)currentPage())->applyStyle();
}

void Workspace::showProcesses()
{
  KStandardDirs* kstd = KGlobal::dirs();
  kstd->addResourceType( "data", "share/apps/ksysguard" );

  TQString file = kstd->findResource( "data", "ProcessTable.sgrd" );
  if ( file.isEmpty() ) {
    KMessageBox::error( this, i18n( "Cannot find file ProcessTable.sgrd." ) );
    return;
  }
  WorkSheet *processSheet = restoreWorkSheet( file );
  if(!processSheet) return;

  //Set the focus of the search line.  This is nasty I know, but I don't know how better to do this :(
  KSGRD::SensorDisplay *processSensor = processSheet->display( 0,0 );
  if(!processSensor || !processSensor->isA("ProcessController")) return;
  ProcessController *controller = dynamic_cast<ProcessController *>(processSensor);
  if(!controller) return;
  controller->setSearchFocus();

}

#include "Workspace.moc"