[Measure] Add features, viewproviders and preferences for unified measurement facility

src/Mod/Measure/Gui/ViewProviderMeasureBase.h

@@ -0,0 +1,159 @@
+/***************************************************************************
+ *   Copyright (c) 2023 David Friedli <david[at]friedli-be.ch>             *
+ *                                                                         *
+ *   This file is part of FreeCAD.                                         *
+ *                                                                         *
+ *   FreeCAD is free software: you can redistribute it and/or modify it    *
+ *   under the terms of the GNU Lesser General Public License as           *
+ *   published by the Free Software Foundation, either version 2.1 of the  *
+ *   License, or (at your option) any later version.                       *
+ *                                                                         *
+ *   FreeCAD is distributed in the hope that it will be useful, but        *
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of            *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      *
+ *   Lesser General Public License for more details.                       *
+ *                                                                         *
+ *   You should have received a copy of the GNU Lesser General Public      *
+ *   License along with FreeCAD. If not, see                               *
+ *   <https://www.gnu.org/licenses/>.                                      *
+ *                                                                         *
+ **************************************************************************/
+
+#ifndef GUI_VIEWPROVIDER_MEASUREMENTBASE_H
+#define GUI_VIEWPROVIDER_MEASUREMENTBASE_H
+
+#include <Mod/Measure/MeasureGlobal.h>
+
+#include <QString>
+
+#include <App/Application.h>
+#include <App/PropertyStandard.h>
+#include <Base/Parameter.h>
+#include <Gui/ViewProviderDocumentObject.h>
+#include <Gui/SoTextLabel.h>
+
+#include <Mod/Measure/App/MeasureBase.h>
+
+//NOLINTBEGIN
+class SbVec2s;
+class SoFontStyle;
+class SoBaseColor;
+class SoText2;
+class SoTranslation;
+class SoPickStyle;
+class SoCoordinate3;
+class SoIndexedLineSet;
+class SoTranslate2Dragger;
+//NOLINTEND
+
+
+namespace MeasureGui {
+
+//NOLINTBEGIN
+class MeasureGuiExport ViewProviderMeasureBase :public Gui::ViewProviderDocumentObject
+{
+    PROPERTY_HEADER_WITH_OVERRIDE(ViewProviderMeasureBase);
+
+public:
+    /// constructor.
+    ViewProviderMeasureBase();
+
+    /// destructor.
+    ~ViewProviderMeasureBase() override;
+
+    // Display properties
+    App::PropertyColor          TextColor;
+    App::PropertyColor          TextBackgroundColor;
+    App::PropertyColor          LineColor;
+    App::PropertyInteger        FontSize;
+//NOLINTEND
+
+    /**
+     * Attaches the document object to this view provider.
+     */
+    bool isPartOfPhysicalObject() const override {return false;};
+    void attach(App::DocumentObject *pcObj) override;
+    void updateData(const App::Property* prop) override;
+    virtual void positionAnno(const Measure::MeasureBase* measureObject);
+    void finishRestoring() override;
+
+    bool useNewSelectionModel() const override {return true;}
+    std::vector<std::string> getDisplayModes() const override;
+    void setDisplayMode(const char* ModeName) override;
+    /// Show the annotation in the 3d window
+    void show() override;
+
+    virtual void redrawAnnotation();
+    Measure::MeasureBase* getMeasureObject();
+
+    virtual bool isSubjectVisible();
+
+    static Base::Vector3d toVector3d(SbVec3f svec) { return Base::Vector3d(svec[0], svec[1], svec[2]); }
+    static SbVec3f toSbVec3f(Base::Vector3d vec3) { return SbVec3f(vec3.x, vec3.y, vec3.z); }
+
+    void onSubjectVisibilityChanged(const App::DocumentObject& docObj, const App::Property& prop);
+    void connectToSubject(App::DocumentObject* subject);
+    void connectToSubject(std::vector<App::DocumentObject*> subject);
+
+protected:
+    static void draggerChangedCallback(void* data, SoDragger*);
+    void onChanged(const App::Property* prop) override;
+    virtual void onLabelMoved() {};
+    void setLabelValue(const Base::Quantity& value);
+    void setLabelValue(const QString& value);
+    void setLabelTranslation(const SbVec3f& position);
+
+    SoPickStyle* getSoPickStyle();
+    SoDrawStyle* getSoLineStylePrimary();
+    SoDrawStyle* getSoLineStyleSecondary();
+    SoSeparator* getSoSeparatorText();
+
+    static constexpr double defaultTolerance = 10e-6;
+    virtual Base::Vector3d getTextDirection(Base::Vector3d elementDirection, double tolerance = defaultTolerance);
+
+
+    // TODO: getters & setters and move variables to private?
+    bool _mShowTree = true;
+
+    Gui::SoFrameLabel * pLabel;
+    SoTranslate2Dragger* pDragger;
+    SoTransform* pDraggerOrientation;
+    SoTransform    * pLabelTranslation;
+    SoBaseColor      * pColor;
+    SoSeparator* pRootSeparator;
+    SoSeparator* pTextSeparator;
+    SoSeparator* pLineSeparator;
+    SoSeparator* pLineSeparatorSecondary;
+private:
+    boost::signals2::connection _mVisibilityChangedConnection;
+};
+
+//NOLINTBEGIN
+class MeasureGuiExport ViewProviderMeasure : public MeasureGui::ViewProviderMeasureBase
+{
+    PROPERTY_HEADER_WITH_OVERRIDE(MeasureGui::ViewProviderMeasure);
+//NOLINTEND
+
+public:
+    /// Constructor
+    ViewProviderMeasure();
+    ~ViewProviderMeasure() override;
+
+    void redrawAnnotation() override;
+    void positionAnno(const Measure::MeasureBase* measureObject) override;
+
+protected:
+    void onChanged(const App::Property* prop) override;
+
+    virtual Base::Vector3d getBasePosition();
+    virtual Base::Vector3d getTextPosition();
+
+private:
+    SoCoordinate3    * pCoords;
+    SoIndexedLineSet * pLines;
+};
+
+} // namespace Gui
+
+#endif // GUI_VIEWPROVIDER_MEASUREMENTBASE_H
+