debugger: start reviving graphical data display

share/qtcreator/gdbmacros/dumper.py

@@ -439,10 +439,13 @@ def findFirstZero(p, max):
         p = p + 1
     return -1
 
-def encodeCharArray(p, maxsize):
+def encodeCharArray(p, maxsize, size = -1):
     t = gdb.lookup_type("unsigned char").pointer()
     p = p.cast(t)
-    i = findFirstZero(p, maxsize)
+    if size == -1:
+        i = findFirstZero(p, maxsize)
+    else:
+        i = size
     limit = select(i < 0, maxsize, i)
     s = ""
     for i in xrange(limit):
@@ -823,7 +826,7 @@ class Dumper:
         self.put('},')
 
     def beginItem(self, name):
-        self.put('%s="' %s)
+        self.put('%s="' % name)
 
     def endItem(self):
         self.put('",')
@@ -978,6 +981,12 @@ class Dumper:
         if isSimpleType(item.value.type):
             self.safePutItemHelper(item)
 
+    def itemFormat(self, item):
+        format = self.formats.get(item.iname)
+        if format is None:
+            format = self.typeformats.get(stripClassTag(str(item.value.type)))
+        return format
+
     def safePutItem(self, item):
         self.beginHash()
         self.safePutItemHelper(item)
@@ -1091,9 +1100,7 @@ class Dumper:
         elif type.code == gdb.TYPE_CODE_PTR:
             isHandled = False
 
-            format = self.formats.get(item.iname)
-            if format is None:
-                format = self.typeformats.get(str(value.type))
+            format = self.itemFormat(item)
 
             if not format is None:
                 self.putAddress(value.address)

share/qtcreator/gdbmacros/gdbmacros.py

@@ -390,6 +390,8 @@ def qdump__QImage(d, item):
     else:
         checkRef(d_ptr["ref"])
         d.putValue("(%dx%d)" % (d_ptr["width"], d_ptr["height"]))
+    bits = d_ptr["data"]
+    nbytes = d_ptr["nbytes"]
     d.putNumChild(0)
     #d.putNumChild(1)
     if d.isExpanded(item):
@@ -398,13 +400,25 @@ def qdump__QImage(d, item):
         d.putName("data")
         d.putType(" ");
         d.putNumChild(0)
-        bits = d_ptr["data"]
-        nbytes = d_ptr["nbytes"]
         d.putValue("size: %s bytes" % nbytes);
-        d.putField("valuetooltipencoded", "6")
-        d.putField("valuetooltip", encodeCharArray(bits, nbytes))
+        #d.putField("valuetooltipencoded", "6")
+        #d.putField("valuetooltip", encodeCharArray(bits, nbytes))
         d.endHash()
         d.endChildren()
+    format = d.itemFormat(item)
+    if format == 1:
+        d.beginItem("editvalue")
+        d.put("%02x" % 1)  # Magic marker for "QImage" data.
+        d.put("%08x" % int(d_ptr["width"]))
+        d.put("%08x" % int(d_ptr["height"]))
+        d.put("%08x" % int(d_ptr["format"]))
+        # Take 4 at a time, this is critical for performance.
+        # In fact, even 4 at a time is too slow beyond 100x100 or so.
+        p = bits.cast(gdb.lookup_type("unsigned int").pointer())
+        for i in xrange(nbytes / 4):
+            d.put("%08x" % int(p.dereference()))
+            p += 1
+        d.endItem()
 
 
 def qdump__QLinkedList(d, item):

src/plugins/debugger/gdb/gdbengine.cpp

@@ -3293,8 +3293,6 @@ void GdbEngine::sendWatchParameters(const QByteArray &params0)
 void GdbEngine::handleVarAssign(const GdbResponse &)
 {
     // Everything might have changed, force re-evaluation.
-    // FIXME: Speed this up by re-using variables and only
-    // marking values as 'unknown'
     setTokenBarrier();
     updateLocals();
 }
@@ -3370,13 +3368,6 @@ void GdbEngine::handleChildren(const WatchData &data0, const GdbMi &item,
     if (children.isValid() || !manager()->watchHandler()->isExpandedIName(data.iname))
         data.setChildrenUnneeded();
 
-    if (manager()->watchHandler()->isDisplayedIName(data.iname)) {
-        GdbMi editvalue = item.findChild("editvalue");
-        if (editvalue.isValid()) {
-            setWatchDataEditValue(data, editvalue);
-            manager()->watchHandler()->showEditValue(data);
-        }
-    }
     setWatchDataType(data, item.findChild("type"));
     setWatchDataEditValue(data, item.findChild("editvalue"));
     setWatchDataValue(data, item.findChild("value"),
@@ -4204,13 +4195,13 @@ void GdbEngine::handleAdapterCrashed(const QString &msg)
         showMessageBox(QMessageBox::Critical, tr("Adapter crashed"), msg);
 }
 
-void GdbEngine::addOptionPages(QList<Core::IOptionsPage*> *opts) const
+void GdbEngine::addOptionPages(QList<Core::IOptionsPage *> *opts) const
 {
     opts->push_back(new GdbOptionsPage);
     opts->push_back(new TrkOptionsPage(m_trkOptions));
 }
 
-QMessageBox * GdbEngine::showMessageBox(int icon, const QString &title,
+QMessageBox *GdbEngine::showMessageBox(int icon, const QString &title,
     const QString &text, int buttons)
 {
     return m_manager->showMessageBox(icon, title, text, buttons);

src/plugins/debugger/gdb/gdbengine.h

@@ -47,12 +47,9 @@
 #include <QtCore/QVariant>
 
 QT_BEGIN_NAMESPACE
-class QAbstractItemModel;
-class QAction;
 class QMainWindow;
 class QMessageBox;
 class QTimer;
-class QWidget;
 QT_END_NAMESPACE
 
 namespace Debugger {

src/plugins/debugger/watchhandler.cpp

@@ -259,7 +259,8 @@ QString WatchData::toString() const
         str << "value=\"" << value << doubleQuoteComma;
 
     if (!editvalue.isEmpty())
-        str << "editvalue=\"" << editvalue << doubleQuoteComma;
+        str << "editvalue=\"<...>\",";
+    //    str << "editvalue=\"" << editvalue << doubleQuoteComma;
 
     if (isTypeNeeded())
         str << "type=<needed>,";
@@ -281,8 +282,9 @@ QString WatchData::toString() const
     return res + QLatin1Char('}');
 }
 
-// Format a tooltip fow with aligned colon
-static void formatToolTipRow(QTextStream &str, const QString &category, const QString &value)
+// Format a tooltip fow with aligned colon.
+static void formatToolTipRow(QTextStream &str,
+    const QString &category, const QString &value)
 {
     str << "<tr><td>" << category << "</td><td> : </td><td>"
         << Qt::escape(value) << "</td></tr>";
@@ -815,10 +817,6 @@ QVariant WatchModel::data(const QModelIndex &idx, int role) const
         case ExpandedRole:
             return m_handler->m_expandedINames.contains(data.iname);
 
-        case ActiveDataRole:
-            qDebug() << "ASK FOR" << data.iname;
-            return true;
-
         case TypeFormatListRole:
             if (isIntType(data.type))
                 return QStringList() << tr("decimal") << tr("hexadecimal")
@@ -830,6 +828,10 @@ QVariant WatchModel::data(const QModelIndex &idx, int role) const
                     << tr("UTF8 string")
                     << tr("UTF16 string")
                     << tr("UCS4 string");
+            if (data.type.endsWith(QLatin1String("QImage")))
+                return QStringList()
+                    << tr("normal")
+                    << tr("displayed");
             break;
 
         case TypeFormatRole:
@@ -1202,13 +1204,12 @@ void WatchHandler::endCycle()
 void WatchHandler::cleanup()
 {
     m_expandedINames.clear();
-    m_displayedINames.clear();
     m_locals->reinitialize();
     m_tooltips->reinitialize();
     m_locals->m_fetchTriggered.clear();
     m_watchers->m_fetchTriggered.clear();
     m_tooltips->m_fetchTriggered.clear();
-#if 0
+#if 1
     for (EditWindows::ConstIterator it = m_editWindows.begin();
             it != m_editWindows.end(); ++it) {
         if (!it.value().isNull())
@@ -1233,6 +1234,7 @@ void WatchHandler::insertData(const WatchData &data)
             __FILE__, __LINE__, qPrintable(data.toString()));
         return;
     }
+
     if (data.isSomethingNeeded() && data.iname.contains('.')) {
         MODEL_DEBUG("SOMETHING NEEDED: " << data.toString());
         IDebuggerEngine *engine = m_manager->currentEngine();
@@ -1253,6 +1255,9 @@ void WatchHandler::insertData(const WatchData &data)
         QTC_ASSERT(model, return);
         MODEL_DEBUG("NOTHING NEEDED: " << data.toString());
         model->insertData(data);
+
+        if (!data.editvalue.isEmpty())
+            showEditValue(data);
     }
 }
 
@@ -1331,79 +1336,57 @@ void WatchHandler::watchExpression(const QString &exp)
     saveWatchers();
 }
 
-void WatchHandler::setDisplayedIName(const QString &iname, bool on)
+static void swapEndian(char *d, int nchar)
 {
-    Q_UNUSED(iname)
-    Q_UNUSED(on)
-/*
-    WatchData *d = findData(iname);
-    if (!on || !d) {
-        delete m_editWindows.take(iname);
-        m_displayedINames.remove(iname);
-        return;
-    }
-    if (d->exp.isEmpty()) {
-        //emit statusMessageRequested(tr("Sorry. Cannot visualize objects without known address."), 5000);
-        return;
+    QTC_ASSERT(nchar % 4 == 0, return);
+    for (int i = 0; i < nchar; i += 4) {
+        char c = d[i];
+        d[i] = d[i + 3];
+        d[i + 3] = c;
+        c = d[i + 1];
+        d[i + 1] = d[i + 2];
+        d[i + 2] = c;
     }
-    d->setValueNeeded();
-    m_displayedINames.insert(iname);
-    insertData(*d);
-*/
 }
 
 void WatchHandler::showEditValue(const WatchData &data)
 {
-    // editvalue is always base64 encoded
-    QByteArray ba = QByteArray::fromBase64(data.editvalue);
-    //QByteArray ba = data.editvalue;
+    // Editvalue is always hex encoded.
+    QByteArray ba = QByteArray::fromHex(data.editvalue);
     QWidget *w = m_editWindows.value(data.iname);
-    qDebug() << "SHOW_EDIT_VALUE " << data.toString() << data.type
-            << data.iname << w;
-    if (data.type == QLatin1String("QImage")) {
+    const int format = ba.at(0);
+    if (format == 0x1) {
+        // QImage
         if (!w) {
             w = new QLabel;
             m_editWindows[data.iname] = w;
         }
-        QDataStream ds(&ba, QIODevice::ReadOnly);
-        QVariant v;
-        ds >> v;
-        QString type = QString::fromAscii(v.typeName());
-        QImage im = v.value<QImage>();
-        if (QLabel *l = qobject_cast<QLabel *>(w))
+        if (QLabel *l = qobject_cast<QLabel *>(w)) {
+            char *d = ba.data() + 1;
+            swapEndian(d, ba.size() - 1);
+            const int *header = (int *)(d);
+            const uchar *data = 12 + (uchar *)(d);
+            QImage im(data, header[0], header[1], QImage::Format(header[2]));
             l->setPixmap(QPixmap::fromImage(im));
-    } else if (data.type == QLatin1String("QPixmap")) {
-        if (!w) {
-            w = new QLabel;
-            m_editWindows[data.iname] = w;
+            l->resize(header[0], header[1]);
+            l->show();
         }
-        QDataStream ds(&ba, QIODevice::ReadOnly);
-        QVariant v;
-        ds >> v;
-        QString type = QString::fromAscii(v.typeName());
-        QPixmap im = v.value<QPixmap>();
-        if (QLabel *l = qobject_cast<QLabel *>(w))
-            l->setPixmap(im);
-    } else if (data.type == QLatin1String("QString")) {
+    } else if (format == 0x2) {
+        // QString
         if (!w) {
             w = new QTextEdit;
             m_editWindows[data.iname] = w;
         }
-#if 0
-        QDataStream ds(&ba, QIODevice::ReadOnly);
-        QVariant v;
-        ds >> v;
-        QString type = QString::fromAscii(v.typeName());
-        QString str = v.value<QString>();
-#else
         MODEL_DEBUG("DATA: " << ba);
         QString str = QString::fromUtf16((ushort *)ba.constData(), ba.size()/2);
-#endif
-        if (QTextEdit *t = qobject_cast<QTextEdit *>(w))
+        if (QTextEdit *t = qobject_cast<QTextEdit *>(w)) {
             t->setText(str);
+            t->resize(400, 200);
+            t->show();
+        }
+    } else {
+        QTC_ASSERT(false, qDebug() << "Display format: " << format);
     }
-    if (w)
-        w->show();
 }
 
 void WatchHandler::removeWatchExpression()

src/plugins/debugger/watchhandler.h

@@ -140,7 +140,7 @@ public:
     bool error;
 
 public:
-    int source;  // Used by some debuggers (CDB) to tell where it originates from (dumper or symbol evaluation)
+    int source;  // Originated from dumper or symbol evaluation? (CDB only)
     int state;
     bool changed;
 };
@@ -149,40 +149,21 @@ enum WatchRoles
 {
     INameRole = Qt::UserRole,
     ExpressionRole,
-    ExpandedRole,    // used to communicate preferred expanded state to the view
-    ActiveDataRole,  // used for tooltip
+    ExpandedRole,    // Used to communicate preferred expanded state to the view.
     TypeFormatListRole,
-    TypeFormatRole,  // used to communicate alternative formats to the view
+    TypeFormatRole,  // Used to communicate alternative formats to the view.
     IndividualFormatRole,
-    AddressRole,     // some memory address related to the object
+    AddressRole,     // Some memory address related to the object.
 };
 
 enum IntegerFormat
 {
-    DecimalFormat = 0, // keep that at 0 as default
+    DecimalFormat = 0, // Keep that at 0 as default.
     HexadecimalFormat,
     BinaryFormat,
     OctalFormat,
 };
 
-
-enum PointerFomat
-{
-    BaldPointerFormat = 0, // keep that at 0 as default
-    Latin1StringFormat,
-    Local8BitStringFormat,
-    Utf8StringFormat,
-    Utf16StringFormat,
-    Ucs4StringFormat,
-};
-
-
-enum DumpableFormat
-{
-    PrettyFormat = 0, // keep that at 0 as default
-    PlainFomat,
-};
-
 class WatchModel : public QAbstractItemModel
 {
     Q_OBJECT
@@ -274,8 +255,6 @@ public:
     void loadSessionData();
     void saveSessionData();
 
-    bool isDisplayedIName(const QByteArray &iname) const
-        { return m_displayedINames.contains(iname); }
     bool isExpandedIName(const QByteArray &iname) const
         { return m_expandedINames.contains(iname); }
     QSet<QByteArray> expandedINames() const
@@ -308,10 +287,7 @@ private:
     QByteArray watcherName(const QByteArray &exp);
     QHash<QString, int> m_typeFormats;
     QHash<QString, int> m_individualFormats;
-
-    void setDisplayedIName(const QString &iname, bool on);
-    QSet<QByteArray> m_expandedINames;  // those expanded in the treeview
-    QSet<QByteArray> m_displayedINames; // those with "external" viewers
+    QSet<QByteArray> m_expandedINames;  // Those expanded in the treeview.
 
     WatchModel *m_locals;
     WatchModel *m_watchers;

src/plugins/debugger/watchutils.cpp

@@ -681,7 +681,7 @@ QString decodeData(const QByteArray &ba, int encoding)
             return doubleQuote + QString::fromUcs4(reinterpret_cast<const uint *>
                 (decodedBa.data()), decodedBa.size() / 4) + doubleQuote;
         }
-        case 11: { //  %02x encoded 16 bit data, Big Endian
+        case 11: { //  %04x encoded 16 bit data, Big Endian
             const QChar doubleQuote(QLatin1Char('"'));
             QByteArray decodedBa = QByteArray::fromHex(ba);
             for (int i = 0; i < decodedBa.size(); i += 2) {