febugger: prepare for saner handling of changed breakpoints

src/plugins/debugger/breakhandler.cpp

@@ -1092,21 +1092,21 @@ void BreakHandler::setResponse(BreakpointId id,
     updateMarker(id);
 }
 
-void BreakHandler::setBreakpointData(BreakpointId id,
-    const BreakpointParameters &data)
+void BreakHandler::changeBreakpointData(BreakpointId id,
+    const BreakpointParameters &data, BreakpointParts parts)
 {
     Iterator it = m_storage.find(id);
     QTC_ASSERT(it != m_storage.end(), return);
     if (data == it->data)
         return;
     it->data = data;
-    if (it->needsChange() && it->engine && it->state != BreakpointNew) {
-        setState(id, BreakpointChangeRequested);
-        scheduleSynchronization();
-    } else {
+    if (parts == NoParts) {
         it->destroyMarker();
         updateMarker(id);
         layoutChanged();
+    } else if (it->needsChange() && it->engine && it->state != BreakpointNew) {
+        setState(id, BreakpointChangeRequested);
+        scheduleSynchronization();
     }
 }
 

src/plugins/debugger/breakhandler.h

@@ -121,7 +121,8 @@ public:
     quint64 address(BreakpointId id) const;
     void setAddress(BreakpointId id, const quint64 &address);
     int lineNumber(BreakpointId id) const;
-    void setBreakpointData(BreakpointId id, const BreakpointParameters &data);
+    void changeBreakpointData(BreakpointId id, const BreakpointParameters &data,
+        BreakpointParts parts);
     const BreakpointParameters &breakpointData(BreakpointId id) const;
     BreakpointState state(BreakpointId id) const;
     bool isEnabled(BreakpointId id) const;

src/plugins/debugger/breakpoint.cpp

@@ -58,21 +58,42 @@ BreakpointParameters::BreakpointParameters(BreakpointType t)
     tracepoint(false)
 {}
 
+BreakpointParts BreakpointParameters::differencesTo
+    (const BreakpointParameters &rhs) const
+{
+    BreakpointParts parts = BreakpointParts();
+    if (type != rhs.type)
+        parts |= TypePart;
+    if (enabled != rhs.enabled)
+        parts |= EnabledPart;
+    if (pathUsage != rhs.pathUsage)
+        parts |= PathUsagePart;
+    if (fileName != rhs.fileName)
+        parts |= FileAndLinePart;
+    if (conditionsMatch(rhs.condition))
+        parts |= ConditionPart;
+    if (ignoreCount != rhs.ignoreCount)
+        parts |= IgnoreCountPart;
+    if (lineNumber != rhs.lineNumber)
+        parts |= FileAndLinePart;
+    if (address != rhs.address)
+        parts |= AddressPart;
+    if (threadSpec != rhs.threadSpec)
+        parts |= ThreadSpecPart;
+    if (functionName != rhs.functionName)
+        parts |= FunctionPart;
+    if (tracepoint != rhs.tracepoint)
+        parts |= TracePointPart;
+    if (module != rhs.module)
+        parts |= ModulePart;
+    if (command != rhs.command)
+        parts |= CommandPart;
+    return parts;
+}
+
 bool BreakpointParameters::equals(const BreakpointParameters &rhs) const
 {
-    return type == rhs.type
-        && enabled == rhs.enabled
-        && pathUsage == rhs.pathUsage
-        && fileName == rhs.fileName
-        && conditionsMatch(rhs.condition)
-        && ignoreCount == rhs.ignoreCount
-        && lineNumber == rhs.lineNumber
-        && address == rhs.address
-        && threadSpec == rhs.threadSpec
-        && functionName == rhs.functionName
-        && tracepoint == rhs.tracepoint
-        && module == rhs.module
-        && command == rhs.command;
+    return !differencesTo(rhs);
 }
 
 bool BreakpointParameters::conditionsMatch(const QByteArray &other) const

src/plugins/debugger/breakpoint.h

@@ -88,10 +88,40 @@ enum BreakpointPathUsage
     BreakpointUseShortPath            //!< Use filename only, in case source files are relocated.
 };
 
+enum BreakpointParts
+{
+    NoParts = 0,
+    FileAndLinePart = 0x1,
+    FunctionPart = 0x2,
+    AddressPart = 0x4,
+    ConditionPart = 0x8,
+    IgnoreCountPart = 0x10,
+    ThreadSpecPart = 0x20,
+    AllConditionParts = ConditionPart|IgnoreCountPart|ThreadSpecPart,
+    ModulePart = 0x40,
+    TracePointPart = 0x80,
+
+    EnabledPart = 0x100,
+    TypePart = 0x200,
+    PathUsagePart = 0x400,
+    CommandPart = 0x400,
+
+    AllParts = FileAndLinePart|FunctionPart|AddressPart|ConditionPart
+               |IgnoreCountPart|ThreadSpecPart|ModulePart|TracePointPart
+               |EnabledPart|TypePart|PathUsagePart|CommandPart
+};
+
+inline void operator|=(BreakpointParts &p, BreakpointParts r)
+{
+    p = BreakpointParts(int(p) | int(r));
+}
+
+
 class BreakpointParameters
 {
 public:
     explicit BreakpointParameters(BreakpointType = UnknownType);
+    BreakpointParts differencesTo(const BreakpointParameters &rhs) const;
     bool equals(const BreakpointParameters &rhs) const;
     bool conditionsMatch(const QByteArray &other) const;
     bool isWatchpoint() const { return type == Watchpoint; }

src/plugins/debugger/breakwindow.cpp

@@ -71,7 +71,7 @@ class BreakpointDialog : public QDialog
     Q_OBJECT
 public:
     explicit BreakpointDialog(unsigned engineCapabilities, QWidget *parent = 0);
-    bool showDialog(BreakpointParameters *data);
+    bool showDialog(BreakpointParameters *data, BreakpointParts *parts);
 
     void setParameters(const BreakpointParameters &data);
     BreakpointParameters parameters() const;
@@ -385,7 +385,8 @@ void BreakpointDialog::typeChanged(int)
     }
 }
 
-bool BreakpointDialog::showDialog(BreakpointParameters *data)
+bool BreakpointDialog::showDialog(BreakpointParameters *data,
+    BreakpointParts *parts)
 {
     setParameters(*data);
     if (exec() != QDialog::Accepted)
@@ -393,7 +394,8 @@ bool BreakpointDialog::showDialog(BreakpointParameters *data)
 
     // Check if changed.
     const BreakpointParameters newParameters = parameters();
-    if (data->equals(newParameters))
+    *parts = data->differencesTo(newParameters);
+    if (!*parts)
         return false;
 
     *data = newParameters;
@@ -651,17 +653,19 @@ void BreakWindow::editBreakpoint(BreakpointId id, QWidget *parent)
     unsigned engineCapabilities = AllDebuggerCapabilities;
     if (const DebuggerEngine *engine = breakHandler()->engine(id))
         engineCapabilities = engine->debuggerCapabilities();
+    BreakpointParts parts = NoParts;
     BreakpointDialog dialog(engineCapabilities, parent);
-    if (dialog.showDialog(&data))
-        breakHandler()->setBreakpointData(id, data);
+    if (dialog.showDialog(&data, &parts))
+        breakHandler()->changeBreakpointData(id, data, parts);
 }
 
 void BreakWindow::addBreakpoint()
 {
     BreakpointParameters data(BreakpointByFileAndLine);
+    BreakpointParts parts = NoParts;
     BreakpointDialog dialog(AllDebuggerCapabilities, this);
     dialog.setWindowTitle(tr("Add Breakpoint"));
-    if (dialog.showDialog(&data))
+    if (dialog.showDialog(&data, &parts))
         breakHandler()->appendBreakpoint(data);
 }