debugger: simplify code for inserting new watchitems

share/qtcreator/gdbmacros/dumper.py

@@ -1169,7 +1169,7 @@ class Dumper:
             self.put('name="%s",' % escapedExp)
             self.put('exp="%s",' % escapedExp)
             handled = False
-            if exp == "<Edit>" or len(exp) == 0:
+            if len(exp) == 0: # The <Edit> case
                 self.putValue(" ")
                 self.putType(" ")
                 self.putNumChild(0)

src/plugins/debugger/debuggerconstants.h

@@ -214,7 +214,6 @@ enum ModelRoles
     LocalsPointerValueRole, // Pointer value (address) as quint64
     LocalsIsWatchpointAtAddressRole,
     LocalsIsWatchpointAtPointerValueRole,
-    WatcherEditPlaceHolderRole,
     RequestWatchPointRole,
     RequestToggleWatchRole,
     RequestToolTipByExpressionRole,

src/plugins/debugger/gdb/pythongdbengine.cpp

@@ -72,9 +72,6 @@ void GdbEngine::updateLocalsPython(const QByteArray &varList)
         it.next();
         if (!watchers.isEmpty())
             watchers += "##";
-        if (it.key() == WatchHandler::watcherEditPlaceHolder().toLatin1())
-            watchers += "<Edit>#watch." + QByteArray::number(it.value());
-        else
         watchers += it.key() + "#watch." + QByteArray::number(it.value());
     }
 

src/plugins/debugger/pdb/pdbengine.cpp

@@ -735,9 +735,6 @@ void PdbEngine::updateLocals()
         it.next();
         if (!watchers.isEmpty())
             watchers += "##";
-        if (it.key() == WatchHandler::watcherEditPlaceHolder().toLatin1())
-            watchers += "<Edit>#watch." + QByteArray::number(it.value());
-        else
         watchers += it.key() + "#watch." + QByteArray::number(it.value());
     }
 

src/plugins/debugger/watchhandler.cpp

@@ -599,26 +599,18 @@ QVariant WatchModel::data(const QModelIndex &idx, int role) const
 
         case EngineActionsEnabledRole:
             return engine()->debuggerActionsEnabled();
-
-        case WatcherEditPlaceHolderRole:
-            return m_handler->watcherEditPlaceHolder();
     }
 
     const WatchItem *item = watchItem(idx);
     const WatchItem &data = *item;
 
-    if (data.name == m_handler->watcherEditPlaceHolder()) {
-        if (idx.column() == 0 &&
-                (role == Qt::EditRole || role == Qt::DisplayRole))
-            return data.name;
-        return QVariant();
-    }
-
     switch (role) {
         case Qt::EditRole:
         case Qt::DisplayRole: {
             switch (idx.column()) {
                 case 0:
+                    if (data.name.isEmpty() && role == Qt::DisplayRole)
+                        return tr("<Edit>");
                     if (data.name == QLatin1String("*") && item->parent)
                         return QVariant(QLatin1Char('*') + item->parent->name);
                     return data.name;
@@ -836,7 +828,7 @@ Qt::ItemFlags WatchModel::flags(const QModelIndex &idx) const
         return editable; // Watcher names are editable.
 
     if (data.isWatcher()) {
-        if (data.name != m_handler->watcherEditPlaceHolder()) {
+        if (!data.name.isEmpty()) {
             // FIXME: Forcing types is not implemented yet.
             //if (idx.column() == 2)
             //    return editable; // Watcher types can be set by force.
@@ -1249,7 +1241,7 @@ QByteArray WatchHandler::watcherName(const QByteArray &exp)
 void WatchHandler::watchExpression(const QString &exp)
 {
     // Do not insert multiple placeholders.
-    if (exp == watcherEditPlaceHolder() && m_watcherNames.contains(exp.toLatin1()))
+    if (exp.isEmpty() && m_watcherNames.contains(QByteArray()))
         return;
 
     // FIXME: 'exp' can contain illegal characters
@@ -1257,7 +1249,7 @@ void WatchHandler::watchExpression(const QString &exp)
     data.exp = exp.toLatin1();
     data.name = exp;
     m_watcherNames[data.exp] = watcherCounter++;
-    if (exp.isEmpty() || exp == watcherEditPlaceHolder())
+    if (exp.isEmpty())
         data.setAllUnneeded();
     data.iname = watcherName(data.exp);
     if (m_engine->isSynchroneous() && !m_engine->isSessionEngine())
@@ -1416,7 +1408,7 @@ QStringList WatchHandler::watchedExpressions() const
     while (it.hasNext()) {
         it.next();
         const QString &watcherName = it.key();
-        if (!watcherName.isEmpty() && watcherName != watcherEditPlaceHolder())
+        if (!watcherName.isEmpty())
             watcherNames.push_back(watcherName);
     }
     return watcherNames;
@@ -1528,12 +1520,6 @@ WatchData *WatchHandler::findItem(const QByteArray &iname) const
     return model->findItem(iname, model->m_root);
 }
 
-QString WatchHandler::watcherEditPlaceHolder()
-{
-    static const QString rc = tr("<Edit>");
-    return rc;
-}
-
 void WatchHandler::setFormat(const QString &type, int format)
 {
     if (format == -1)

src/plugins/debugger/watchhandler.h

@@ -171,7 +171,6 @@ public:
     QByteArray typeFormatRequests() const;
     QByteArray individualFormatRequests() const;
 
-    static QString watcherEditPlaceHolder();
     int format(const QByteArray &iname) const;
 
     void addTypeFormats(const QString &type, const QStringList &formats);

src/plugins/debugger/watchwindow.cpp

@@ -206,9 +206,8 @@ void WatchWindow::mouseDoubleClickEvent(QMouseEvent *ev)
 {
     const QModelIndex idx = indexAt(ev->pos());
     if (!idx.isValid()) {
-        // The "<Edit>" string.
+        // The "<Edit>" case.
-        QVariant placeHolder = model()->data(idx, WatcherEditPlaceHolderRole);
+        watchExpression(QString());
-        setModelData(RequestWatchExpressionRole, placeHolder);
         return;
     }
     QTreeView::mouseDoubleClickEvent(ev);
@@ -410,7 +409,7 @@ void WatchWindow::contextMenuEvent(QContextMenuEvent *ev)
     } else if (act == actAlwaysAdjustColumnWidth) {
         setAlwaysResizeColumnsToContents(!m_alwaysResizeColumnsToContents);
     } else if (act == actInsertNewWatchItem) {
-        watchExpression(WatchHandler::watcherEditPlaceHolder());
+        watchExpression(QString());
     } else if (act == actOpenMemoryEditAtVariableAddress) {
         setModelData(RequestShowMemoryRole, address);
     } else if (act == actOpenMemoryEditAtPointerValue) {