QtAutoUic: Add INTERFACE_AUTOUIC_OPTIONS target property.

Transitively consume the property from linked dependents.

Implement configuration-specific support by following the pattern
set out for compile definitions and includes in cmQtAutoGenerators.

Implement support for origin-tracking with CMAKE_DEBUG_TARGET_PROPERTIES.

This is motivated by the needs of KDE, which provides a separate
translation system based on gettext instead of the Qt linguist
translation system. The Qt uic tool provides command line options
for configuring the method used to translate text, and to add an
include directive to the generated file to provide the method.

 http://thread.gmane.org/gmane.comp.kde.devel.frameworks/7930/focus=7992

Implement the interface to provide the uic options as a usage-requirement
on the KI18n target, as designed for KDE.

1 files changed, 144 insertions, 0 deletions

diff --git a/Source/cmTarget.cxx b/Source/cmTarget.cxx
index 2423b27..fe68a8a 100644
--- a/Source/cmTarget.cxx
+++ b/Source/cmTarget.cxx
@@ -135,6 +135,7 @@ public:
   };
   std::vector<TargetPropertyEntry*> IncludeDirectoriesEntries;
   std::vector<TargetPropertyEntry*> CompileOptionsEntries;
+  std::vector<TargetPropertyEntry*> AutoUicOptionsEntries;
   std::vector<TargetPropertyEntry*> CompileDefinitionsEntries;
   std::vector<cmValueWithOrigin> LinkInterfacePropertyEntries;
 
@@ -143,11 +144,14 @@ public:
   mutable std::map<std::string, std::vector<TargetPropertyEntry*> >
                                 CachedLinkInterfaceCompileOptionsEntries;
   mutable std::map<std::string, std::vector<TargetPropertyEntry*> >
+                                CachedLinkInterfaceAutoUicOptionsEntries;
+  mutable std::map<std::string, std::vector<TargetPropertyEntry*> >
                                 CachedLinkInterfaceCompileDefinitionsEntries;
 
   mutable std::map<std::string, bool> CacheLinkInterfaceIncludeDirectoriesDone;
   mutable std::map<std::string, bool> CacheLinkInterfaceCompileDefinitionsDone;
   mutable std::map<std::string, bool> CacheLinkInterfaceCompileOptionsDone;
+  mutable std::map<std::string, bool> CacheLinkInterfaceAutoUicOptionsDone;
 };
 
 //----------------------------------------------------------------------------
@@ -182,6 +186,7 @@ cmTargetInternals::~cmTargetInternals()
 {
   deleteAndClear(this->CachedLinkInterfaceIncludeDirectoriesEntries);
   deleteAndClear(this->CachedLinkInterfaceCompileOptionsEntries);
+  deleteAndClear(this->CachedLinkInterfaceAutoUicOptionsEntries);
   deleteAndClear(this->CachedLinkInterfaceCompileDefinitionsEntries);
 }
 
@@ -1473,6 +1478,17 @@ void cmTarget::SetProperty(const char* prop, const char* value)
                           new cmTargetInternals::TargetPropertyEntry(cge));
     return;
     }
+  if(strcmp(prop,"AUTOUIC_OPTIONS") == 0)
+    {
+    cmListFileBacktrace lfbt;
+    this->Makefile->GetBacktrace(lfbt);
+    cmGeneratorExpression ge(lfbt);
+    deleteAndClear(this->Internal->AutoUicOptionsEntries);
+    cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(value);
+    this->Internal->AutoUicOptionsEntries.push_back(
+                          new cmTargetInternals::TargetPropertyEntry(cge));
+    return;
+    }
   if(strcmp(prop,"COMPILE_DEFINITIONS") == 0)
     {
     cmListFileBacktrace lfbt;
@@ -1547,6 +1563,15 @@ void cmTarget::AppendProperty(const char* prop, const char* value,
               new cmTargetInternals::TargetPropertyEntry(ge.Parse(value)));
     return;
     }
+  if(strcmp(prop,"AUTOUIC_OPTIONS") == 0)
+    {
+    cmListFileBacktrace lfbt;
+    this->Makefile->GetBacktrace(lfbt);
+    cmGeneratorExpression ge(lfbt);
+    this->Internal->AutoUicOptionsEntries.push_back(
+              new cmTargetInternals::TargetPropertyEntry(ge.Parse(value)));
+    return;
+    }
   if(strcmp(prop,"COMPILE_DEFINITIONS") == 0)
     {
     cmListFileBacktrace lfbt;
@@ -2043,6 +2068,106 @@ static void processCompileOptions(cmTarget const* tgt,
 }
 
 //----------------------------------------------------------------------------
+void cmTarget::GetAutoUicOptions(std::vector<std::string> &result,
+                                 const char *config) const
+{
+  std::set<std::string> uniqueOptions;
+  cmListFileBacktrace lfbt;
+
+  cmGeneratorExpressionDAGChecker dagChecker(lfbt,
+                                              this->GetName(),
+                                              "AUTOUIC_OPTIONS", 0, 0);
+
+  std::vector<std::string> debugProperties;
+  const char *debugProp =
+              this->Makefile->GetDefinition("CMAKE_DEBUG_TARGET_PROPERTIES");
+  if (debugProp)
+    {
+    cmSystemTools::ExpandListArgument(debugProp, debugProperties);
+    }
+
+  bool debugOptions = !this->DebugCompileOptionsDone
+                    && std::find(debugProperties.begin(),
+                                 debugProperties.end(),
+                                 "AUTOUIC_OPTIONS")
+                        != debugProperties.end();
+
+  if (this->Makefile->IsGeneratingBuildSystem())
+    {
+    this->DebugAutoUicOptionsDone = true;
+    }
+
+  processCompileOptions(this,
+                            this->Internal->AutoUicOptionsEntries,
+                            result,
+                            uniqueOptions,
+                            &dagChecker,
+                            config,
+                            debugOptions);
+
+  std::string configString = config ? config : "";
+  if (!this->Internal->CacheLinkInterfaceAutoUicOptionsDone[configString])
+    {
+    for (std::vector<cmValueWithOrigin>::const_iterator
+        it = this->Internal->LinkInterfacePropertyEntries.begin(),
+        end = this->Internal->LinkInterfacePropertyEntries.end();
+        it != end; ++it)
+      {
+      if (!cmGeneratorExpression::IsValidTargetName(it->Value)
+          && cmGeneratorExpression::Find(it->Value) == std::string::npos)
+        {
+        continue;
+        }
+      {
+      cmGeneratorExpression ge(lfbt);
+      cmsys::auto_ptr<cmCompiledGeneratorExpression> cge =
+                                                        ge.Parse(it->Value);
+      std::string targetResult = cge->Evaluate(this->Makefile, config,
+                                        false, this, 0, 0);
+      if (!this->Makefile->FindTargetToUse(targetResult.c_str()))
+        {
+        continue;
+        }
+      }
+      std::string optionGenex = "$<TARGET_PROPERTY:" +
+                              it->Value + ",INTERFACE_AUTOUIC_OPTIONS>";
+      if (cmGeneratorExpression::Find(it->Value) != std::string::npos)
+        {
+        // Because it->Value is a generator expression, ensure that it
+        // evaluates to the non-empty string before being used in the
+        // TARGET_PROPERTY expression.
+        optionGenex = "$<$<BOOL:" + it->Value + ">:" + optionGenex + ">";
+        }
+      cmGeneratorExpression ge(it->Backtrace);
+      cmsys::auto_ptr<cmCompiledGeneratorExpression> cge = ge.Parse(
+                                                                optionGenex);
+
+      this->Internal
+        ->CachedLinkInterfaceAutoUicOptionsEntries[configString].push_back(
+                        new cmTargetInternals::TargetPropertyEntry(cge,
+                                                              it->Value));
+      }
+    }
+
+  processCompileOptions(this,
+    this->Internal->CachedLinkInterfaceAutoUicOptionsEntries[configString],
+                            result,
+                            uniqueOptions,
+                            &dagChecker,
+                            config,
+                            debugOptions);
+
+  if (!this->Makefile->IsGeneratingBuildSystem())
+    {
+    deleteAndClear(this->Internal->CachedLinkInterfaceAutoUicOptionsEntries);
+    }
+  else
+    {
+    this->Internal->CacheLinkInterfaceAutoUicOptionsDone[configString] = true;
+    }
+}
+
+//----------------------------------------------------------------------------
 void cmTarget::GetCompileOptions(std::vector<std::string> &result,
                                  const char *config) const
 {
@@ -2749,6 +2874,24 @@ const char *cmTarget::GetProperty(const char* prop,
       }
     return output.c_str();
     }
+  if(strcmp(prop,"AUTOUIC_OPTIONS") == 0)
+    {
+    static std::string output;
+    output = "";
+    std::string sep;
+    typedef cmTargetInternals::TargetPropertyEntry
+                                TargetPropertyEntry;
+    for (std::vector<TargetPropertyEntry*>::const_iterator
+        it = this->Internal->AutoUicOptionsEntries.begin(),
+        end = this->Internal->AutoUicOptionsEntries.end();
+        it != end; ++it)
+      {
+      output += sep;
+      output += (*it)->ge->GetInput();
+      sep = ";";
+      }
+    return output.c_str();
+    }
   if(strcmp(prop,"COMPILE_DEFINITIONS") == 0)
     {
     static std::string output;
@@ -5958,6 +6101,7 @@ cmTargetInternalPointer::~cmTargetInternalPointer()
 {
   deleteAndClear(this->Pointer->IncludeDirectoriesEntries);
   deleteAndClear(this->Pointer->CompileOptionsEntries);
+  deleteAndClear(this->Pointer->AutoUicOptionsEntries);
   deleteAndClear(this->Pointer->CompileDefinitionsEntries);
   delete this->Pointer;
 }