debugger: The DebuggerEngine refactoring.

This replaces the (de facto) singleton engines and data handlers by classes
that are instantiated per run. The DebuggerRunControl will now create an
object of (a class derived from) DebuggerEngine that contains all the relevant
"dynamic" data.

DebuggerManager is no more. The "singleton" bits are merged into DebuggerPlugin,
whereas the data bits went to DebuggerEngine.

There is no formal notion of a "current" DebuggerEngine. However, as there's
only one DebuggerEngine at a time that has its data models connected to the
view, there's still some "de facto" notion of a "current" engine. Calling
SomeModel::setData(int role, QVariant data) with custom role is used as the
primary dispatch mechanism from the views to the "current" data models
(and the engine, as all data models know their engine).

src/plugins/debugger/debuggerconstants.h

@@ -138,36 +138,132 @@ enum DebuggerCapabilities
 
 enum LogChannel
 {
-    LogInput,               // Used for user input
-    LogMiscInput,           // Used for misc stuff in the input pane
-    LogOutput,
-    LogWarning,
-    LogError,
-    LogStatus,              // Used for status changed messages
-    LogTime,                // Used for time stamp messages
-    LogDebug,
-    LogMisc,
-    AppOutput,
-    AppError,
-    StatusBar               // LogStatus and also put to the status bar
-};
+    LogInput,                // Used for user input
+    LogMiscInput,            // Used for misc stuff in the input pane
+    LogOutput,               
+    LogWarning,              
+    LogError,                
+    LogStatus,               // Used for status changed messages
+    LogTime,                 // Used for time stamp messages
+    LogDebug,                
+    LogMisc,                 
+    AppOutput,               
+    AppError,                
+    AppStuff,
+    StatusBar                // LogStatus and also put to the status bar
+};                           
+                             
+enum ModelRoles              
+{                            
+    DisplaySourceRole = 32,  // Qt::UserRole
 
-enum ModelRoles
-{
-    DisplaySourceRole = 32, // Qt::UserRole,
-
-    EngineCapabilityRole,
+    EngineStateRole,
+    EngineCapabilitiesRole,
     EngineActionsEnabledRole,
 
+    // Running
+    RequestExecContinueRole,
+    RequestExecInterruptRole,
+    RequestExecResetRole,
+    RequestExecStepRole,
+    RequestExecStepOutRole,
+    RequestExecNextRole,
+    RequestExecRunToLineRole,
+    RequestExecRunToFunctionRole,
+    RequestExecReturnFromFunctionRole,
+    RequestExecJumpToLineRole,
+    RequestExecWatchRole,
+    RequestExecSnapshotRole,
+    RequestExecFrameDownRole,
+    RequestExecFrameUpRole,
+    RequestExecDetachRole,
+    RequestExecExitRole,
+    RequestLoadSessionDataRole,
+    RequestSaveSessionDataRole,
+
+    // Breakpoints
+    BreakpointEnabledRole,
+    BreakpointUseFullPathRole,
+    BreakpointFunctionNameRole,
+    BreakpointFileNameRole,
+    BreakpointConditionRole,
+    BreakpointIgnoreCountRole,
+    BreakpointThreadSpecRole,
+    RequestActivateBreakpointRole,
+    RequestRemoveBreakpointRole,
+    RequestRemoveBreakpointByIndexRole,
+    RequestSynchronizeBreakpointsRole,
+    RequestBreakByFunctionRole,
+    RequestBreakByFunctionMainRole,
+    RequestFindSimilarBreakpointRole,
+    RequestAppendBreakpointRole,
+    RequestUpdateBreakpointRole,
+
+    // Locals and Watchers
+    LocalsINameRole,
+    LocalsExpressionRole,
+    LocalsExpandedRole,     // The preferred expanded state to the view
+    LocalsTypeFormatListRole,
+    LocalsTypeFormatRole,   // Used to communicate alternative formats to the view
+    LocalsIndividualFormatRole,
+    LocalsAddressRole,      // Memory address of variable as quint64
+    LocalsRawValueRole,     // Unformatted value as string
+    LocalsPointerValueRole, // Pointer value (address) as quint64
+    LocalsIsWatchpointAtAddressRole,
+    LocalsIsWatchpointAtPointerValueRole,
+    RequestToggleWatchRole,
+    RequestClearCppCodeModelSnapshotRole,
+    RequestAssignValueRole,
+    RequestAssignTypeRole,
+
+    // Stack
+    StackFrameAddressRole,
+    RequestActivateFrameRole,
+    RequestReloadFullStackRole,
+    RequestShowMemoryRole,
+    RequestShowDisassemblerRole,
+
+    // Threads
+    CurrentThreadIdRole,
+    RequestSelectThreadRole,
+
     // Modules
     RequestReloadModulesRole,
     RequestModuleSymbolsRole,
     RequestAllSymbolsRole,
+    RequestOpenFileRole,
+
+    // Registers
+    RegisterNumberBaseRole,  // Currently used number base
+    RegisterAddressRole,     // Start value for opening memory view
+    RegisterChangedRole,     // Used for painting changed values
+    RequestSetRegisterRole,
+    RequestReloadRegistersRole,
 
     // Snapshots
     RequestMakeSnapshotRole,
     RequestActivateSnapshotRole,
     RequestRemoveSnapshotRole,
+
+    // Sources
+    RequestReloadSourceFilesRole,
+};
+
+enum DebuggerEngineType
+{
+    NoEngineType      = 0,
+    GdbEngineType     = 0x01,
+    ScriptEngineType  = 0x02,
+    CdbEngineType     = 0x04,
+    PdbEngineType     = 0x08,
+    TcfEngineType     = 0x10,
+    QmlEngineType     = 0x20,
+    AllEngineTypes = GdbEngineType
+        | ScriptEngineType
+        | CdbEngineType
+        | PdbEngineType
+        | TcfEngineType
+        | QmlEngineType
 };
 
 } // namespace Debugger