kdbg/brkpt.cpp

   1 // $Id$
   2
   3 // Copyright by Johannes Sixt
   4 // This file is under GPL, the GNU General Public Licence
   5
   6 #include <kapp.h>                       /* i18n */
   7 #include <klocale.h>                    /* i18n */
   8 #include <kiconloader.h>
   9 #include <ksimpleconfig.h>
  10 #include <qdialog.h>
  11 #include <qkeycode.h>
  12 #include <qpainter.h>
  13 #include <qlabel.h>
  14 #include <qbitmap.h>
  15 #include "debugger.h"
  16 #include "brkpt.h"
  17 #include "dbgdriver.h"
  18 #include <ctype.h>
  19 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22 #include "mydebug.h"
  23
  24
  25 class BreakpointItem : public QListViewItem, public Breakpoint
  26 {
  27 public:
  28     BreakpointItem(QListView* list, const Breakpoint& bp);
  29     void updateFrom(const Breakpoint& bp);
  30     void display();                     /* sets icon and visible texts */
  31     bool enabled() const { return Breakpoint::enabled; }
  32 };
  33
  34
  35 BreakpointTable::BreakpointTable(QWidget* parent, const char* name) :
  36         QWidget(parent, name),
  37         m_debugger(0),
  38         m_bpEdit(this, "bpedit"),
  39         m_list(this, "bptable"),
  40         m_btAddBP(this, "addbp"),
  41         m_btAddWP(this, "addwp"),
  42         m_btRemove(this, "remove"),
  43         m_btEnaDis(this, "enadis"),
  44         m_btViewCode(this, "view"),
  45         m_btConditional(this, "conditional"),
  46         m_layout(this, 8),
  47         m_listandedit(8),
  48         m_buttons(8)
  49 {
  50     m_bpEdit.setMinimumSize(m_bpEdit.sizeHint());
  51     connect(&m_bpEdit, SIGNAL(returnPressed()), this, SLOT(addBP()));
  52
  53     initListAndIcons();
  54     connect(&m_list, SIGNAL(currentChanged(QListViewItem*)), SLOT(updateUI()));
  55     // double click on item is same as View code
  56     connect(&m_list, SIGNAL(doubleClicked(QListViewItem*)), this, SLOT(viewBP()));
  57
  58     // need mouse button events
  59     m_list.viewport()->installEventFilter(this);
  60
  61     m_btAddBP.setText(i18n("Add &Breakpoint"));
  62     m_btAddBP.setMinimumSize(m_btAddBP.sizeHint());
  63     connect(&m_btAddBP, SIGNAL(clicked()), this, SLOT(addBP()));
  64
  65     m_btAddWP.setText(i18n("Add &Watchpoint"));
  66     m_btAddWP.setMinimumSize(m_btAddWP.sizeHint());
  67     connect(&m_btAddWP, SIGNAL(clicked()), this, SLOT(addWP()));
  68
  69     m_btRemove.setText(i18n("&Remove"));
  70     m_btRemove.setMinimumSize(m_btRemove.sizeHint());
  71     connect(&m_btRemove, SIGNAL(clicked()), this, SLOT(removeBP()));
  72
  73     // the Enable/Disable button changes its label
  74     m_btEnaDis.setText(i18n("&Disable"));
  75     // make a dummy button to get the size of the alternate label
  76     {
  77         QSize size = m_btEnaDis.sizeHint();
  78         QPushButton dummy(this);
  79         dummy.setText(i18n("&Enable"));
  80         QSize sizeAlt = dummy.sizeHint();
  81         if (sizeAlt.width() > size.width())
  82             size.setWidth(sizeAlt.width());
  83         if (sizeAlt.height() > size.height())
  84             size.setHeight(sizeAlt.height());
  85         m_btEnaDis.setMinimumSize(size);
  86     }
  87     connect(&m_btEnaDis, SIGNAL(clicked()), this, SLOT(enadisBP()));
  88
  89     m_btViewCode.setText(i18n("&View Code"));
  90     m_btViewCode.setMinimumSize(m_btViewCode.sizeHint());
  91     connect(&m_btViewCode, SIGNAL(clicked()), this, SLOT(viewBP()));
  92
  93     m_btConditional.setText(i18n("&Conditional..."));
  94     m_btConditional.setMinimumSize(m_btConditional.sizeHint());
  95     connect(&m_btConditional, SIGNAL(clicked()), this, SLOT(conditionalBP()));
  96
  97     m_layout.addLayout(&m_listandedit, 10);
  98     m_layout.addLayout(&m_buttons);
  99     m_listandedit.addWidget(&m_bpEdit);
 100     m_listandedit.addWidget(&m_list, 10);
 101     m_buttons.addWidget(&m_btAddBP);
 102     m_buttons.addWidget(&m_btAddWP);
 103     m_buttons.addWidget(&m_btRemove);
 104     m_buttons.addWidget(&m_btEnaDis);
 105     m_buttons.addWidget(&m_btViewCode);
 106     m_buttons.addWidget(&m_btConditional);
 107     m_buttons.addStretch(10);
 108
 109     m_layout.activate();
 110
 111     resize(350, 300);
 112
 113     m_bpEdit.setFocus();
 114 }
 115
 116 BreakpointTable::~BreakpointTable()
 117 {
 118 }
 119
 120 void BreakpointTable::updateBreakList()
 121 {
 122     QList<BreakpointItem> deletedItems;
 123
 124     for (QListViewItem* it = m_list.firstChild(); it != 0; it = it->nextSibling()) {
 125         deletedItems.append(static_cast<BreakpointItem*>(it));
 126     }
 127
 128     // get the new list
 129     for (int i = m_debugger->numBreakpoints()-1; i >= 0; i--) {
 130         const Breakpoint* bp = m_debugger->breakpoint(i);
 131         // look up this item
 132         for (BreakpointItem* oldbp = deletedItems.first(); oldbp != 0;
 133              oldbp = deletedItems.next())
 134         {
 135             if (oldbp->id == bp->id) {
 136                 oldbp->updateFrom(*bp);
 137                 deletedItems.take();    /* don't delete */
 138                 goto nextItem;
 139             }
 140         }
 141         // not in the list; add it
 142         new BreakpointItem(&m_list, *bp);
 143 nextItem:;
 144     }
 145
 146     // delete all untouched breakpoints
 147     deletedItems.setAutoDelete(true);
 148 }
 149
 150 BreakpointItem::BreakpointItem(QListView* list, const Breakpoint& bp) :
 151         QListViewItem(list),
 152         Breakpoint(bp)
 153 {
 154     display();
 155 }
 156
 157 void BreakpointItem::updateFrom(const Breakpoint& bp)
 158 {
 159     Breakpoint::operator=(bp);          /* assign new values */
 160     display();
 161 }
 162
 163 void BreakpointTable::addBP()
 164 {
 165     // set a breakpoint at the specified text
 166     QString bpText = m_bpEdit.text();
 167     bpText = bpText.stripWhiteSpace();
 168     if (m_debugger->isReady())
 169     {
 170         Breakpoint* bp = new Breakpoint;
 171         bp->text = bpText;
 172
 173         m_debugger->setBreakpoint(bp, false);
 174     }
 175 }
 176
 177 void BreakpointTable::addWP()
 178 {
 179     // set a watchpoint for the specified expression
 180     QString wpExpr = m_bpEdit.text();
 181     wpExpr = wpExpr.stripWhiteSpace();
 182     if (m_debugger->isReady()) {
 183         Breakpoint* bp = new Breakpoint;
 184         bp->type = Breakpoint::watchpoint;
 185         bp->text = wpExpr;
 186
 187         m_debugger->setBreakpoint(bp, false);
 188     }
 189 }
 190
 191 void BreakpointTable::removeBP()
 192 {
 193     BreakpointItem* bp = static_cast<BreakpointItem*>(m_list.currentItem());
 194     if (bp == 0)
 195         return;
 196
 197     Breakpoint* brk = m_debugger->breakpointById(bp->id);
 198     if (brk != 0) {
 199         m_debugger->deleteBreakpoint(brk);
 200         // note that both brk and bp may be deleted by now
 201         // (if bp was an orphaned breakpoint)
 202     }
 203 }
 204
 205 void BreakpointTable::enadisBP()
 206 {
 207     BreakpointItem* bp = static_cast<BreakpointItem*>(m_list.currentItem());
 208     if (bp == 0)
 209         return;
 210
 211     Breakpoint* brk = m_debugger->breakpointById(bp->id);
 212     if (brk != 0) {
 213         m_debugger->enableDisableBreakpoint(brk);
 214     }
 215 }
 216
 217 void BreakpointTable::viewBP()
 218 {
 219     BreakpointItem* bp = static_cast<BreakpointItem*>(m_list.currentItem());
 220     if (bp == 0)
 221         return;
 222
 223     emit activateFileLine(bp->fileName, bp->lineNo, bp->address);
 224 }
 225
 226 void BreakpointTable::updateUI()
 227 {
 228     bool enableChkpt = m_debugger->canChangeBreakpoints();
 229     m_btAddBP.setEnabled(enableChkpt);
 230     m_btAddWP.setEnabled(enableChkpt);
 231
 232     BreakpointItem* bp = static_cast<BreakpointItem*>(m_list.currentItem());
 233     m_btViewCode.setEnabled(bp != 0);
 234
 235     if (bp == 0) {
 236         enableChkpt = false;
 237     } else {
 238         if (bp->enabled()) {
 239             m_btEnaDis.setText(i18n("&Disable"));
 240         } else {
 241             m_btEnaDis.setText(i18n("&Enable"));
 242         }
 243     }
 244     m_btRemove.setEnabled(enableChkpt);
 245     m_btEnaDis.setEnabled(enableChkpt);
 246     m_btConditional.setEnabled(enableChkpt);
 247 }
 248
 249 bool BreakpointTable::eventFilter(QObject* ob, QEvent* ev)
 250 {
 251     if (ev->type() == QEvent::MouseButtonPress)
 252     {
 253         QMouseEvent* mev = static_cast<QMouseEvent*>(ev);
 254         if (mev->button() == MidButton) {
 255             // enable or disable the clicked-on item
 256             BreakpointItem* bp =
 257                 static_cast<BreakpointItem*>(m_list.itemAt(mev->pos()));
 258             if (bp != 0)
 259             {
 260                 Breakpoint* brk = m_debugger->breakpointById(bp->id);
 261                 if (brk != 0) {
 262                     m_debugger->enableDisableBreakpoint(brk);
 263                 }
 264             }
 265             return true;
 266         }
 267     }
 268     return QWidget::eventFilter(ob, ev);
 269 }
 270
 271 class ConditionalDlg : public QDialog
 272 {
 273 public:
 274     ConditionalDlg(QWidget* parent);
 275     ~ConditionalDlg();
 276
 277     void setCondition(const char* text) { m_condition.setText(text); }
 278     const char* condition() { return m_condition.text(); }
 279     void setIgnoreCount(uint count);
 280     uint ignoreCount();
 281
 282 protected:
 283     QLabel m_conditionLabel;
 284     QLineEdit m_condition;
 285     QLabel m_ignoreLabel;
 286     QLineEdit m_ignoreCount;
 287     QPushButton m_buttonOK;
 288     QPushButton m_buttonCancel;
 289     QVBoxLayout m_layout;
 290     QGridLayout m_inputs;
 291     QHBoxLayout m_buttons;
 292 };
 293
 294 void BreakpointTable::conditionalBP()
 295 {
 296     BreakpointItem* bp = static_cast<BreakpointItem*>(m_list.currentItem());
 297     if (bp == 0)
 298         return;
 299
 300     /*
 301      * Important: we must not keep a pointer to the Breakpoint around,
 302      * since it may vanish while the modal dialog is open through other
 303      * user interactions (like clicking at the breakpoint in the source
 304      * window)!
 305      */
 306     int id = bp->id;
 307
 308     ConditionalDlg dlg(this);
 309     dlg.setCondition(bp->condition);
 310     dlg.setIgnoreCount(bp->ignoreCount);
 311
 312     if (dlg.exec() != QDialog::Accepted)
 313         return;
 314
 315     QString conditionInput = dlg.condition();
 316     int ignoreCount = dlg.ignoreCount();
 317     updateBreakpointCondition(id, conditionInput, ignoreCount);
 318 }
 319
 320 void BreakpointTable::updateBreakpointCondition(int id,
 321                                                 const QString& condition,
 322                                                 int ignoreCount)
 323 {
 324     Breakpoint* brk = m_debugger->breakpointById(id);
 325     if (brk != 0) {
 326         m_debugger->conditionalBreakpoint(brk, condition, ignoreCount);
 327     }
 328 }
 329
 330
 331 void BreakpointTable::initListAndIcons()
 332 {
 333     m_list.addColumn(i18n("Location"), 220);
 334     m_list.addColumn(i18n("Address"), 65);
 335     m_list.addColumn(i18n("Hits"), 30);
 336     m_list.addColumn(i18n("Ignore"), 30);
 337     m_list.addColumn(i18n("Condition"), 200);
 338
 339     m_list.setMinimumSize(200, 100);
 340
 341     m_list.setSorting(-1);
 342
 343     // add pixmaps
 344     QPixmap brkena = BarIcon("brkena.xpm");
 345     QPixmap brkdis = BarIcon("brkdis.xpm");
 346     QPixmap watchena = BarIcon("watchena.xpm");
 347     QPixmap watchdis = BarIcon("watchdis.xpm");
 348     QPixmap brktmp = BarIcon("brktmp.xpm");
 349     QPixmap brkcond = BarIcon("brkcond.xpm");
 350     QPixmap brkorph = BarIcon("brkorph.xpm");
 351
 352     /*
 353      * There are 32 different pixmaps: The basic enabled or disabled
 354      * breakpoint, plus an optional overlaid brktmp icon plus an optional
 355      * overlaid brkcond icon, plus an optional overlaid brkorph icon. Then
 356      * the same sequence for watchpoints.
 357      */
 358     m_icons.setSize(32);
 359     QPixmap canvas(16,16);
 360
 361     for (int i = 0; i < 32; i++) {
 362         {
 363             QPainter p(&canvas);
 364             // clear canvas
 365             p.fillRect(0,0, canvas.width(),canvas.height(), cyan);
 366             // basic icon
 367             if (i & 1) {
 368                 p.drawPixmap(1,1, (i & 8) ? watchena : brkena);
 369             } else {
 370                 p.drawPixmap(1,1, (i & 8) ? watchdis : brkdis);
 371             }
 372             // temporary overlay
 373             if (i & 2) {
 374                 p.drawPixmap(1,1, brktmp);
 375             }
 376             // conditional overlay
 377             if (i & 4) {
 378                 p.drawPixmap(1,1, brkcond);
 379             }
 380             // orphan overlay
 381             if (i & 16) {
 382                 p.drawPixmap(1,1, brkorph);
 383             }
 384         }
 385         canvas.setMask(canvas.createHeuristicMask());
 386         m_icons[i] = canvas;
 387     }
 388 }
 389
 390 void BreakpointItem::display()
 391 {
 392     BreakpointTable* lb = static_cast<BreakpointTable*>(listView()->parent());
 393
 394     /* breakpoint icon code; keep order the same as in BreakpointTable::initListAndIcons */
 395     int code = enabled() ? 1 : 0;
 396     if (temporary)
 397         code += 2;
 398     if (!condition.isEmpty() || ignoreCount > 0)
 399         code += 4;
 400     if (type == watchpoint)
 401         code += 8;
 402     if (isOrphaned())
 403         code += 16;
 404     setPixmap(0, lb->m_icons[code]);
 405
 406     // more breakpoint info
 407     if (!location.isEmpty()) {
 408         setText(0, location);
 409     } else if (!Breakpoint::text.isEmpty()) {
 410         setText(0, Breakpoint::text);
 411     } else if (!fileName.isEmpty()) {
 412         // use only the file name portion
 413         QString file = fileName;
 414         int slash = file.findRev('/');
 415         if (slash >= 0) {
 416             file = file.mid(slash+1);
 417         }
 418         // correct zero-based line-numbers
 419         setText(0, file + ":" + QString::number(lineNo+1));
 420     } else {
 421         setText(0, "*" + address.asString());
 422     }
 423
 424     int c = 0;
 425     setText(++c, address.asString());
 426     QString tmp;
 427     if (hitCount == 0) {
 428         setText(++c, QString());
 429     } else {
 430         tmp.setNum(hitCount);
 431         setText(++c, tmp);
 432     }
 433     if (ignoreCount == 0) {
 434         setText(++c, QString());
 435     } else {
 436         tmp.setNum(ignoreCount);
 437         setText(++c, tmp);
 438     }
 439     if (condition.isEmpty()) {
 440         setText(++c, QString());
 441     } else {
 442         setText(++c, condition);
 443     }
 444 }
 445
 446
 447 ConditionalDlg::ConditionalDlg(QWidget* parent) :
 448         QDialog(parent, "conditional", true),
 449         m_conditionLabel(this, "condLabel"),
 450         m_condition(this, "condition"),
 451         m_ignoreLabel(this, "ignoreLabel"),
 452         m_ignoreCount(this, "ignoreCount"),
 453         m_buttonOK(this, "ok"),
 454         m_buttonCancel(this, "cancel"),
 455         m_layout(this, 10),
 456         m_inputs(2, 2, 10),
 457         m_buttons(4)
 458 {
 459     QString title = kapp->caption();
 460     title += i18n(": Conditional breakpoint");
 461     setCaption(title);
 462
 463     m_conditionLabel.setText(i18n("&Condition:"));
 464     m_conditionLabel.setMinimumSize(m_conditionLabel.sizeHint());
 465     m_ignoreLabel.setText(i18n("Ignore &next hits:"));
 466     m_ignoreLabel.setMinimumSize(m_ignoreLabel.sizeHint());
 467
 468     m_condition.setMinimumSize(150, 24);
 469     m_condition.setMaxLength(10000);
 470     m_condition.setFrame(true);
 471     m_ignoreCount.setMinimumSize(150, 24);
 472     m_ignoreCount.setMaxLength(10000);
 473     m_ignoreCount.setFrame(true);
 474
 475     m_conditionLabel.setBuddy(&m_condition);
 476     m_ignoreLabel.setBuddy(&m_ignoreCount);
 477
 478     m_buttonOK.setMinimumSize(100, 30);
 479     connect(&m_buttonOK, SIGNAL(clicked()), SLOT(accept()));
 480     m_buttonOK.setText(i18n("OK"));
 481     m_buttonOK.setDefault(true);
 482
 483     m_buttonCancel.setMinimumSize(100, 30);
 484     connect(&m_buttonCancel, SIGNAL(clicked()), SLOT(reject()));
 485     m_buttonCancel.setText(i18n("Cancel"));
 486
 487     m_layout.addLayout(&m_inputs);
 488     m_inputs.addWidget(&m_conditionLabel, 0, 0);
 489     m_inputs.addWidget(&m_condition, 0, 1);
 490     m_inputs.addWidget(&m_ignoreLabel, 1, 0);
 491     m_inputs.addWidget(&m_ignoreCount, 1, 1);
 492     m_inputs.setColStretch(1, 10);
 493     m_layout.addLayout(&m_buttons);
 494     m_layout.addStretch(10);
 495     m_buttons.addStretch(10);
 496     m_buttons.addWidget(&m_buttonOK);
 497     m_buttons.addSpacing(40);
 498     m_buttons.addWidget(&m_buttonCancel);
 499     m_buttons.addStretch(10);
 500
 501     m_layout.activate();
 502
 503     m_condition.setFocus();
 504     resize(400, 100);
 505 }
 506
 507 ConditionalDlg::~ConditionalDlg()
 508 {
 509 }
 510
 511 uint ConditionalDlg::ignoreCount()
 512 {
 513     bool ok;
 514     QString input = m_ignoreCount.text();
 515     uint result = input.toUInt(&ok);
 516     return ok ? result : 0;
 517 }
 518
 519 void ConditionalDlg::setIgnoreCount(uint count)
 520 {
 521     QString text;
 522     // set empty if ignore count is zero
 523     if (count > 0) {
 524         text.setNum(count);
 525     }
 526     m_ignoreCount.setText(text);
 527 }
 528
 529
 530 #include "brkpt.moc"