Merge branch 'lua-console' into 'development'

Lua console

Finished a quick and dirty implementation of a Lua console in CampvisApplication.

CMakeLists.txt

@@ -48,8 +48,10 @@ IF(CAMPVIS_BUILD_LIB_TGT)
 ENDIF()
 
 IF(CAMPVIS_BUILD_LIB_LUA)
-    # Keep LUA_BUILD_AS_DLL in sync with BUILD_SHARED_LIBS
-    SET(LUA_BUILD_AS_DLL ${BUILD_SHARED_LIBS} CACHE BOOL "Build Lua library as DLL" FORCE)
+    IF(WIN32)
+        # Keep LUA_BUILD_AS_DLL in sync with BUILD_SHARED_LIBS
+        SET(LUA_BUILD_AS_DLL ${BUILD_SHARED_LIBS} CACHE BOOL "Build Lua library as DLL" FORCE)
+    ENDIF(WIN32)
 
     ADD_SUBDIRECTORY(ext/lua EXCLUDE_FROM_ALL)
 
@@ -69,6 +71,17 @@ ENDIF()
 
 
 IF(CAMPVIS_ENABLE_SCRIPTING)
+    # First, find Lua to setup paths for all projects correctly
+    FIND_PACKAGE(Lua REQUIRED)
+    IF(LUA_FOUND)
+        MESSAGE(STATUS "* Found Lua")
+        LIST(APPEND CampvisGlobalDefinitions ${LUA_DEFINITIONS})
+        LIST(APPEND CampvisGlobalIncludeDirs ${LUA_INCLUDE_DIR})
+        LIST(APPEND CampvisGlobalExternalLibs ${LUA_LIBRARY})
+    ELSE(LUA_FOUND)
+        MESSAGE(FATAL_ERROR "Lua not found!")
+    ENDIF(LUA_FOUND)
+    
     ADD_SUBDIRECTORY(scripting)
     LIST(APPEND CampvisGlobalDefinitions "-DCAMPVIS_HAS_SCRIPTING")
 ENDIF()

application/CMakeLists.txt

@@ -38,6 +38,7 @@ SET(CampvisApplicationToBeMocced
     gui/qtdatahandle.h
     gui/logviewerwidget.h
     gui/loghighlighter.h
+    gui/scriptingwidget.h
     gui/mdi/mdidockarea.h
     gui/mdi/mdidockablewindow.h
     gui/mdi/mdidockedwindow.h

application/campvisapplication.cpp

@@ -59,6 +59,7 @@ namespace campvis {
         , _localContext(0)
         , _mainWindow(0)
         , _errorTexture(nullptr)
+        , _luaVmState(nullptr)
         , _initialized(false)
         , _argc(argc)
         , _argv(argv)
@@ -77,11 +78,9 @@ namespace campvis {
         tgtAssert(_initialized == false, "Destructing initialized CampVisApplication, deinitialize first!");
 
         // delete everything in the right order:
-        for (std::vector< std::pair<AbstractPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
-            delete it->second;
-        }
-        for (std::vector<AbstractPipeline*>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
-            delete *it;
+        for (std::vector<PipelineRecord>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
+            delete it->_painter;
+            delete it->_pipeline;
         }
         for (std::vector<DataContainer*>::iterator it = _dataContainers.begin(); it != _dataContainers.end(); ++it) {
             delete *it;
@@ -147,6 +146,29 @@ namespace campvis {
         tgt::TextureReaderTga trt;
         _errorTexture = trt.loadTexture(CAMPVIS_SOURCE_DIR "/application/data/no_input.tga", tgt::Texture::LINEAR);
 
+
+#ifdef CAMPVIS_HAS_SCRIPTING
+        // create and store Lua VM for this very pipeline
+        _luaVmState = new LuaVmState();
+        _luaVmState->redirectLuaPrint();
+
+        // Let Lua know where CAMPVis modules are located
+        if (! _luaVmState->execString("package.cpath = '" CAMPVIS_LUA_MODS_PATH "'"))
+            LERROR("Error setting up Lua VM.");
+
+        // Load CAMPVis' core Lua module to have SWIG glue for AutoEvaluationPipeline available
+        if (! _luaVmState->execString("require(\"campvis\")"))
+            LERROR("Error setting up Lua VM.");
+        if (! _luaVmState->execString("require(\"tgt\")"))
+            LERROR("Error setting up Lua VM.");
+
+        if (! _luaVmState->execString("pipelines = {}"))
+            LERROR("Error setting up Lua VM.");
+
+        if (! _luaVmState->execString("inspect = require 'inspect'"))
+            LERROR("Error setting up Lua VM.");
+#endif
+
         // parse argument list and create pipelines
         QStringList pipelinesToAdd = this->arguments();
         for (int i = 1; i < pipelinesToAdd.size(); ++i) {
@@ -170,14 +192,10 @@ namespace campvis {
 
             delete _errorTexture;
 
-            // Deinit pipeline first
-            for (std::vector<AbstractPipeline*>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
-                (*it)->deinit();
-            }
-
-            // Now deinit painters:
-            for (std::vector< std::pair<AbstractPipeline*, CampVisPainter*> >::iterator it = _visualizations.begin(); it != _visualizations.end(); ++it) {
-                it->second->deinit();
+            // Deinit pipeline and painter first
+            for (std::vector<PipelineRecord>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
+                it->_pipeline->deinit();
+                it->_painter->deinit();
             }
 
             _mainWindow->deinit();
@@ -227,8 +245,8 @@ namespace campvis {
         pipeline->setCanvas(canvas);
         painter->setErrorTexture(_errorTexture);
 
-        _visualizations.push_back(std::make_pair(pipeline, painter));
-        _pipelines.push_back(pipeline);
+        PipelineRecord pr = { pipeline, painter };
+        _pipelines.push_back(pr);
 
         _mainWindow->addVisualizationPipelineWidget(name, canvas);
 
@@ -238,6 +256,14 @@ namespace campvis {
             makeJobOnHeap<CampVisApplication, tgt::GLCanvas*, AbstractPipeline*>(this, &CampVisApplication::initGlContextAndPipeline, canvas, pipeline), 
             OpenGLJobProcessor::SerialJob);
 
+#ifdef CAMPVIS_HAS_SCRIPTING
+        if (! _luaVmState->injectObjectPointerToTable(pipeline, "campvis::AutoEvaluationPipeline *", "pipelines", static_cast<int>(_pipelines.size())))
+        //if (! _luaVmState->injectObjectPointerToTableField(pipeline, "campvis::AutoEvaluationPipeline *", "pipelines", name))
+            LERROR("Could not inject the pipeline into the Lua VM.");
+
+        _luaVmState->execString("inspect(pipelines)");
+#endif
+
         s_PipelinesChanged();
     }
 
@@ -284,8 +310,8 @@ namespace campvis {
             LINFO("Rebuilding shaders from file successful.");
         }
 
-        for (std::vector<AbstractPipeline*>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
-            for (std::vector<AbstractProcessor*>::const_iterator pit = (*it)->getProcessors().begin(); pit != (*it)->getProcessors().end(); ++pit) {
+        for (std::vector<PipelineRecord>::iterator it = _pipelines.begin(); it != _pipelines.end(); ++it) {
+            for (std::vector<AbstractProcessor*>::const_iterator pit = it->_pipeline->getProcessors().begin(); pit != it->_pipeline->getProcessors().end(); ++pit) {
                 if (VisualizationProcessor* tester = dynamic_cast<VisualizationProcessor*>(*pit)) {
                 	tester->invalidate(AbstractProcessor::INVALID_RESULT);
                 }
@@ -293,5 +319,11 @@ namespace campvis {
         }
     }
 
+#ifdef CAMPVIS_HAS_SCRIPTING
+    LuaVmState* CampVisApplication::getLuaVmState() {
+        return _luaVmState;
+    }
+
+#endif
 
 }

application/campvisapplication.h

@@ -35,6 +35,10 @@
 
 #include "core/datastructures/datacontainer.h"
 
+#ifdef CAMPVIS_HAS_SCRIPTING
+#include "scripting/glue/luavmstate.h"
+#endif
+
 namespace tgt {
     class GLCanvas;
     class QtThreadedCanvas;
@@ -45,6 +49,7 @@ namespace campvis {
     class AbstractPipeline;
     class MainWindow;
     class CampVisPainter;
+    class LuaVmState;
 
     /**
      * The CampVisApplication class wraps Pipelines, Evaluators and Painters all together and takes
@@ -62,6 +67,12 @@ namespace campvis {
     friend class MainWindow;
 
     public:
+        /// Record storing a pipeline together with its painter and Lua VM state.
+        struct PipelineRecord {
+            AbstractPipeline* _pipeline;
+            CampVisPainter* _painter;
+        };
+
         /**
          * Creates a new CampVisApplication.
          * \param   argc        number of passed arguments
@@ -124,6 +135,15 @@ namespace campvis {
          */
         void rebuildAllShadersFromFiles();
 
+
+#ifdef CAMPVIS_HAS_SCRIPTING
+        /**
+         * Returns the global LuaVmState of this application.
+         */
+        LuaVmState* getLuaVmState();
+#endif
+
+
         /// Signal emitted when the collection of pipelines has changed.
         sigslot::signal0<> s_PipelinesChanged;
 
@@ -135,9 +155,7 @@ namespace campvis {
 
 
         /// All pipelines 
-        std::vector<AbstractPipeline*> _pipelines;
-        /// All visualisations (i.e. Pipelines with their corresponding painters/canvases)
-        std::vector< std::pair<AbstractPipeline*, CampVisPainter*> > _visualizations;
+        std::vector<PipelineRecord> _pipelines;
 
         /// All DataContainers
         std::vector<DataContainer*> _dataContainers;
@@ -153,8 +171,12 @@ namespace campvis {
         /// Main window hosting GUI stuff
         MainWindow* _mainWindow;
 
+        /// Error texture to show if there is no output found
         tgt::Texture* _errorTexture;
 
+        /// the global LuaVmState of this application
+        LuaVmState* _luaVmState;
+
         /// Flag, whether CampVisApplication was correctly initialized
         bool _initialized;
 

application/gui/mainwindow.cpp

@@ -58,6 +58,7 @@ namespace campvis {
         , _selectedProcessor(0)
         , _selectedDataContainer(0)
         , _logViewer(0)
+        , _scriptingConsoleWidget(nullptr)
     {
         tgtAssert(_application != 0, "Application must not be 0.");
         ui.setupUi(this);
@@ -130,6 +131,12 @@ namespace campvis {
         _logViewer = new LogViewerWidget(this);
         ui.logViewerDock->setWidget(_logViewer);
 
+#ifdef CAMPVIS_HAS_SCRIPTING
+        _scriptingConsoleWidget = new ScriptingWidget(this);
+        ui.scriptingConsoleDock->setWidget(_scriptingConsoleWidget);
+        connect(_scriptingConsoleWidget, SIGNAL(s_commandExecuted(const QString&)), this, SLOT(onLuaCommandExecuted(const QString&)));
+#endif
+
         _dcInspectorWidget = new DataContainerInspectorWidget();
         this->populateMainMenu();
 
@@ -185,11 +192,17 @@ namespace campvis {
     }
 
     void MainWindow::onPipelinesChanged() {
-        emit updatePipelineWidget(_application->_dataContainers, _application->_pipelines);
+        std::vector<AbstractPipeline*> pipelines;
+        std::for_each(_application->_pipelines.begin(), _application->_pipelines.end(), [&] (const CampVisApplication::PipelineRecord& pr) { pipelines.push_back(pr._pipeline); });
+
+        emit updatePipelineWidget(_application->_dataContainers, pipelines);
     }
 
     void MainWindow::onDataContainersChanged() {
-        emit updatePipelineWidget(_application->_dataContainers, _application->_pipelines);
+        std::vector<AbstractPipeline*> pipelines;
+        std::for_each(_application->_pipelines.begin(), _application->_pipelines.end(), [&] (const CampVisApplication::PipelineRecord& pr) { pipelines.push_back(pr._pipeline); });
+
+        emit updatePipelineWidget(_application->_dataContainers, pipelines);
     }
 
     void MainWindow::onPipelineWidgetItemClicked(const QModelIndex& index) {
@@ -263,6 +276,9 @@ namespace campvis {
             _dcInspectorWidget->init();
 
         _logViewer->init();
+
+        if (_scriptingConsoleWidget)
+            _scriptingConsoleWidget->init();
     }
 
     void MainWindow::deinit() {
@@ -270,6 +286,9 @@ namespace campvis {
             _dcInspectorWidget->deinit();
 
         _logViewer->deinit();
+
+        if (_scriptingConsoleWidget)
+            _scriptingConsoleWidget->deinit();
     }
 
     void MainWindow::addVisualizationPipelineWidget(const std::string& name, QWidget* canvas) {
@@ -311,4 +330,12 @@ namespace campvis {
         _application->rebuildAllShadersFromFiles();
     }
 
+    void MainWindow::onLuaCommandExecuted(const QString& cmd) {
+#ifdef CAMPVIS_HAS_SCRIPTING
+        if (_application->getLuaVmState() != nullptr) {
+            _application->getLuaVmState()->execString(cmd.toStdString());
+        }
+#endif
+    }
+
 }

application/gui/mainwindow.h

@@ -31,6 +31,7 @@
 #include "application/gui/pipelinetreewidget.h"
 #include "application/gui/properties/propertycollectionwidget.h"
 #include "application/gui/logviewerwidget.h"
+#include "application/gui/scriptingwidget.h"
 #include "application/tools/qtexteditlog.h"
 #include "application/ui_mainwindow.h"
 
@@ -105,7 +106,7 @@ namespace campvis {
         /// Qt signal for updating the PropertyCollectionWidget
         void updatePropCollectionWidget(HasPropertyCollection*, DataContainer*);
 
-    private slots:
+    public slots:
         /**
          * Slot to be called by the PipelineWidget when the selected item changes.
          * \param   index   Index of the selected item
@@ -128,6 +129,9 @@ namespace campvis {
         /// Slot to be called when all shaders shall be rebuilt.
         void onRebuildShadersClicked();
 
+        /// Slot to be called when a Lua command shall be executed.
+        void onLuaCommandExecuted(const QString& cmd);
+
     private:
 
         /**
@@ -185,6 +189,8 @@ namespace campvis {
         DataContainer* _selectedDataContainer;              ///< currently selected DataContainer
 
         LogViewerWidget* _logViewer;                        ///< Widget displaying log messages
+        ScriptingWidget* _scriptingConsoleWidget;           ///< Widget showing the scripting console (if available)
+
         std::vector<QDockWidget*> _primaryDocks;            ///< Docks located in top docking area of the main window
     };
 }

application/gui/scriptingwidget.cpp

+// ================================================================================================
+// 
+// This file is part of the CAMPVis Software Framework.
+// 
+// If not explicitly stated otherwise: Copyright (C) 2012-2014, all rights reserved,
+//      Christian Schulte zu Berge <christian.szb@in.tum.de>
+//      Chair for Computer Aided Medical Procedures
+//      Technische Universitaet Muenchen
+//      Boltzmannstr. 3, 85748 Garching b. Muenchen, Germany
+// 
+// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
+// 
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 
+// except in compliance with the License. You may obtain a copy of the License at
+// 
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software distributed under the 
+// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+// 
+// ================================================================================================
+
+#include "scriptingwidget.h"
+
+#include <QKeyEvent>
+
+namespace campvis {
+
+    ScriptingWidget::ScriptingWidget(QWidget* parent)
+        : QWidget(parent)
+        , _consoleDisplay(nullptr)
+        , _editCommand(nullptr)
+        , _btnExecute(nullptr)
+        , _btnClear(nullptr)
+        , _currentPosition(-1)
+    {
+        setupGUI();
+        addCat("", true, tgt::LuaInfo);
+    }
+
+    ScriptingWidget::~ScriptingWidget() {
+    }
+
+    void ScriptingWidget::init() {
+        LogMgr.addLog(this);
+    }
+
+    void ScriptingWidget::deinit() {
+        LogMgr.removeLog(this);
+    }
+
+    void ScriptingWidget::setupGUI() {
+        setWindowTitle(tr("Scripting Console"));
+
+        QVBoxLayout* mainLayout = new QVBoxLayout(this);
+
+        QHBoxLayout* controlsLayout = new QHBoxLayout();
+        mainLayout->addLayout(controlsLayout);
+
+        _consoleDisplay = new QTextEdit(this);
+        _consoleDisplay->setReadOnly(true);
+        mainLayout->addWidget(_consoleDisplay);
+
+        // Use the system's default monospace font at the default size in the log viewer
+        QFont monoFont = QFont("Monospace");
+        monoFont.setStyleHint(QFont::TypeWriter);
+        monoFont.setPointSize(QFont().pointSize() + 1);
+
+        _consoleDisplay->document()->setDefaultFont(monoFont);
+        _editCommand = new QLineEdit(this);
+        _editCommand->setPlaceholderText(tr("Enter Lua commands here..."));
+        _editCommand->installEventFilter(this);
+        controlsLayout->addWidget(_editCommand);
+
+        _btnExecute = new QPushButton(tr("&Execute"), this);
+        controlsLayout->addWidget(_btnExecute);
+
+        _btnClear = new QPushButton(tr("&Clear"), this);
+        controlsLayout->addWidget(_btnClear);
+
+
+        connect(_btnClear, SIGNAL(clicked()), this, SLOT(clearLog()));
+        connect(_btnExecute, SIGNAL(clicked()), this, SLOT(execute()));
+        connect(_editCommand, SIGNAL(returnPressed()), this, SLOT(execute()));
+    }
+
+    void ScriptingWidget::appendMessage(const QString& message) {
+        _consoleDisplay->append(message);
+    }
+
+    void ScriptingWidget::clearLog() {
+        _consoleDisplay->clear();
+    }
+
+    void ScriptingWidget::execute() {
+        QString command = _editCommand->text();
+        appendMessage(tr("> ") + command);
+
+        emit s_commandExecuted(command);
+
+        _history.push_front(command);
+        _currentPosition = -1;
+        _editCommand->clear();
+    }
+
+    bool ScriptingWidget::eventFilter(QObject* obj, QEvent* event) {
+        if (obj == _editCommand && event->type() == QEvent::KeyPress) {
+            QKeyEvent* e = static_cast<QKeyEvent*>(event);
+            if (e->key() == Qt::Key_Up && _currentPosition < static_cast<int>(_history.size())-1) {
+                ++_currentPosition;
+                _editCommand->setText(_history[_currentPosition]);
+                return true;
+            }
+            if (e->key() == Qt::Key_Down && _currentPosition >= 0) {
+                --_currentPosition;
+                if (_currentPosition >= 0)
+                    _editCommand->setText(_history[_currentPosition]);
+                else
+                    _editCommand->setText(tr(""));
+
+                return true;
+            }
+        }
+
+        return QObject::eventFilter(obj, event);
+    }
+
+    void ScriptingWidget::logFiltered(const std::string &cat, tgt::LogLevel level, const std::string& msg, const std::string& extendedInfo/*=""*/) {
+        if (level == tgt::LuaInfo || level == tgt::LuaError) {
+            appendMessage(QString::fromStdString(msg));
+        }
+    }
+
+
+
+
+}

application/gui/scriptingwidget.h

+// ================================================================================================
+// 
+// This file is part of the CAMPVis Software Framework.
+// 
+// If not explicitly stated otherwise: Copyright (C) 2012-2014, all rights reserved,
+//      Christian Schulte zu Berge <christian.szb@in.tum.de>
+//      Chair for Computer Aided Medical Procedures
+//      Technische Universitaet Muenchen
+//      Boltzmannstr. 3, 85748 Garching b. Muenchen, Germany
+// 
+// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".
+// 
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 
+// except in compliance with the License. You may obtain a copy of the License at
+// 
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software distributed under the 
+// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 
+// either express or implied. See the License for the specific language governing permissions 
+// and limitations under the License.
+// 
+// ================================================================================================
+
+#ifndef SCRIPTINGWIDGET_H__
+#define SCRIPTINGWIDGET_H__
+
+#include "sigslot/sigslot.h"
+#include "tgt/logmanager.h"
+#include "tgt/painter.h"
+#include "tbb/mutex.h"
+
+#include "application/tools/bufferinglog.h"
+#include "application/gui/loghighlighter.h"
+
+#include <deque>
+
+#include <QComboBox>
+#include <QLabel>
+#include <QWidget>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QString>
+#include <QPushButton>
+#include <QLineEdit>
+#include <QTextEdit>
+
+namespace campvis {
+    /**
+     * Qt widget providing a console-like interface to the Lua VM of CampvisApplication.
+     */
+    class ScriptingWidget : public QWidget, tgt::Log {
+        Q_OBJECT;
+
+    public:
+        /**
+         * Creates a new ScriptingWidget.
+         * \param   parent          Parent Qt widget, may be 0 (default)
+         */
+        explicit ScriptingWidget(QWidget* parent = 0);
+
+        /**
+         * Destructor.
+         */
+        ~ScriptingWidget();
+
+        bool isOpen() { return true; }
+        
+        /**
+         * Initializes the underlying log and registers it with tgt.
+         */
+        void init();
+
+        /**
+         * Deinitializes the underlying log and deregisters it from tgt.
+         */
+        void deinit();
+
+    protected:
+        /**
+         * Setup the the log viewer's GUI
+         */
+        void setupGUI();
+
+        bool eventFilter(QObject* obj, QEvent* event);
+
+        void logFiltered(const std::string &cat, tgt::LogLevel level, const std::string& msg, const std::string& extendedInfo="");
+
+    public slots:
+        /**
+         * Append the given message to the log viewer
+         *
+         * This function adds the specified message to the log viewer's message cache and
+         * displays it.
+         *
+         * \param message message to append to the log viewer
+         */
+        void appendMessage(const QString& message);
+
+    private slots:
+        /**
+         * Delete all messages from the log viewer
+         */
+        void clearLog();
+
+        void execute();
+
+    signals:
+        void s_commandExecuted(const QString& cmd);
+
+    private:
+        QTextEdit* _consoleDisplay;         ///< Text edit to hold the console output
+        QLineEdit* _editCommand;            ///< Text field to enter Lua commands
+        QPushButton* _btnExecute;           ///< Button to execute command
+        QPushButton* _btnClear;             ///< Button to clear the console output
+
+        std::deque<QString> _history;       ///< History of executed commands
+        int _currentPosition;               ///< Current position in command history
+    };
+}
+
+#endif // SCRIPTINGWIDGET_H__

application/lua/inspect.lua

+inspect ={
+  _VERSION = 'inspect.lua 2.0.0',
+  _URL = 'http://github.com/kikito/inspect.lua',
+  _DESCRIPTION = 'human-readable representations of tables',
+  _LICENSE = [[
+MIT LICENSE
+
+Copyright (c) 2013 Enrique García Cota
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be included