Basic working version of DrawViewDraft

src/Mod/TechDraw/App/DrawViewDraft.cpp

@@ -0,0 +1,134 @@
+/***************************************************************************
+ *   Copyright (c) WandererFan - 2016    (wandererfan@gmail.com)           *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  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 Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#include "PreCompiled.h"
+
+#ifndef _PreComp_
+# include <sstream>
+#endif
+
+#include <iomanip>
+#include <boost/regex.hpp>
+
+#include <Base/Console.h>
+#include <Base/Exception.h>
+#include <Base/FileInfo.h>
+#include <Base/Interpreter.h>
+
+#include "DrawViewDraft.h"
+
+using namespace TechDraw;
+using namespace std;
+
+
+//===========================================================================
+// DrawViewDraft
+//===========================================================================
+
+PROPERTY_SOURCE(TechDraw::DrawViewDraft, TechDraw::DrawViewSymbol)
+
+
+DrawViewDraft::DrawViewDraft(void)
+{
+    static const char *group = "Draft view";
+
+    ADD_PROPERTY_TYPE(Source ,(0),group,App::Prop_None,"Draft object for this view");
+    ADD_PROPERTY_TYPE(LineScale,(1.0),group,App::Prop_None,"Line width adjustment factor for this view");
+    ADD_PROPERTY_TYPE(FontSize,(12.0),group,App::Prop_None,"Text size for this view");
+    ScaleType.setValue("Custom");
+}
+
+DrawViewDraft::~DrawViewDraft()
+{
+}
+
+void DrawViewDraft::onChanged(const App::Property* prop)
+{
+    if (!isRestoring()) {
+        if (prop == &Source ||
+            prop == &LineScale ||
+            prop == &FontSize) {
+            try {
+                App::DocumentObjectExecReturn *ret = recompute();
+                delete ret;
+            }
+            catch (...) {
+            }
+        }
+    }
+    TechDraw::DrawViewSymbol::onChanged(prop);
+}
+
+App::DocumentObjectExecReturn *DrawViewDraft::execute(void)
+{
+    App::DocumentObject* sourceObj = Source.getValue();
+    if (sourceObj) {
+        std::string svgFrag;
+        std::string svgHead = getSVGHead();
+        std::string svgTail = getSVGTail();
+        std::string FeatName = getNameInDocument();
+        std::string SourceName = sourceObj->getNameInDocument();
+
+        std::stringstream paramStr;
+        paramStr << ",scale=" << LineScale.getValue() << ",fontsize=" << FontSize.getValue();
+
+// this is ok for a starting point, but should eventually make dedicated Draft functions that build the svg for all the special cases
+// (Arch section, etc)
+// like Draft.makeDrawingView, but we don't need to create the actual document objects in Draft, just the svg.
+        Base::Interpreter().runString("import Draft");
+        Base::Interpreter().runStringArg("svgBody = Draft.getSVG(App.activeDocument().%s %s)",
+                                         SourceName.c_str(),paramStr.str().c_str());
+//        Base::Interpreter().runString("print svgBody");
+        Base::Interpreter().runStringArg("App.activeDocument().%s.Symbol = '%s' + svgBody + '%s'",
+                                          FeatName.c_str(),svgHead.c_str(),svgTail.c_str());
+        }
+    return DrawView::execute();
+}
+
+std::string DrawViewDraft::getSVGHead(void)
+{
+    std::string head = std::string("<svg\\n") +
+                       std::string("	xmlns=\"http://www.w3.org/2000/svg\" version=\"1.1\"\\n") +
+                       std::string("	xmlns:freecad=\"http://www.freecadweb.org/wiki/index.php?title=Svg_Namespace\">\\n");
+    return head;
+}
+
+std::string DrawViewDraft::getSVGTail(void)
+{
+    std::string tail = "\\n</svg>";
+    return tail;
+}
+
+// Python Drawing feature ---------------------------------------------------------
+
+namespace App {
+/// @cond DOXERR
+PROPERTY_SOURCE_TEMPLATE(TechDraw::DrawViewDraftPython, TechDraw::DrawViewDraft)
+template<> const char* TechDraw::DrawViewDraftPython::getViewProviderName(void) const {
+    return "TechDrawGui::ViewProviderSymbol";
+}
+/// @endcond
+
+// explicit template instantiation
+template class TechDrawExport FeaturePythonT<TechDraw::DrawViewDraft>;
+}