467 lines
17 KiB
C++
467 lines
17 KiB
C++
/***************************************************************************
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* Copyright (c) 2004 Jürgen Riegel <juergen.riegel@web.de> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <cfloat>
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# include <Inventor/nodes/SoAnnotation.h>
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# include <Inventor/nodes/SoBaseColor.h>
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# include <Inventor/nodes/SoDepthBuffer.h>
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# include <Inventor/nodes/SoDrawStyle.h>
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# include <Inventor/nodes/SoLineSet.h>
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# include <Inventor/nodes/SoMaterial.h>
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# include <Inventor/nodes/SoPickStyle.h>
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# include <Inventor/nodes/SoSeparator.h>
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# include <Inventor/nodes/SoVertexProperty.h>
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#endif
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#include <App/Application.h>
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#include <Base/Console.h>
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#include <Base/Parameter.h>
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#include <Base/Reader.h>
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#include <Gui/Inventor/SoFCBoundingBox.h>
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#include "ViewProvider2DObject.h"
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#include <Inventor/nodes/SoFaceSet.h>
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#include <Inventor/nodes/SoShapeHints.h>
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#include <Inventor/nodes/SoSwitch.h>
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using namespace PartGui;
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using namespace std;
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//**************************************************************************
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// Construction/Destruction
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const char* ViewProvider2DObjectGrid::GridStyleEnums[]= {"Dashed","Light",nullptr};
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App::PropertyQuantityConstraint::Constraints ViewProvider2DObjectGrid::GridSizeRange = {0.001,DBL_MAX,1.0};
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PROPERTY_SOURCE(PartGui::ViewProvider2DObjectGrid, PartGui::ViewProvider2DObject)
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ViewProvider2DObjectGrid::ViewProvider2DObjectGrid()
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{
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ADD_PROPERTY_TYPE(ShowGrid,(false),"Grid",(App::PropertyType)(App::Prop_None),"Switch the grid on/off");
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ADD_PROPERTY_TYPE(ShowOnlyInEditMode,(true),"Grid",(App::PropertyType)(App::Prop_None),"Show only while in edit mode");
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ADD_PROPERTY_TYPE(GridSize,(10.0),"Grid",(App::PropertyType)(App::Prop_None),"Gap size of the grid");
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ADD_PROPERTY_TYPE(GridStyle,(0L),"Grid",(App::PropertyType)(App::Prop_None),"Appearance style of the grid");
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ADD_PROPERTY_TYPE(TightGrid,(true),"Grid",(App::PropertyType)(App::Prop_None),"Switch the tight grid mode on/off");
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ADD_PROPERTY_TYPE(GridSnap,(false),"Grid",(App::PropertyType)(App::Prop_None),"Switch the grid snap on/off");
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ADD_PROPERTY_TYPE(GridAutoSize,(true),"Grid",(App::PropertyType)(App::Prop_Hidden),"Autosize grid based on shape boundbox");
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ADD_PROPERTY_TYPE(maxNumberOfLines,(10000),"Grid",(App::PropertyType)(App::Prop_None),"Maximum Number of Lines in grid");
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GridRoot = new SoAnnotation();
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GridRoot->ref();
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GridRoot->setName("GridRoot");
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MinX = MinY = -100;
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MaxX = MaxY = 100;
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GridStyle.setEnums(GridStyleEnums);
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GridSize.setConstraints(&GridSizeRange);
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pcRoot->addChild(GridRoot);
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sPixmap = "Part_2D_object";
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}
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ViewProvider2DObjectGrid::~ViewProvider2DObjectGrid()
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{
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GridRoot->unref();
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}
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// **********************************************************************************
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SoSeparator* ViewProvider2DObjectGrid::createGrid()
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{
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float Step = GridSize.getValue(); //pow(10,floor(log10(Size/5.0)));
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float MiX, MaX, MiY, MaY;
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if (TightGrid.getValue()) {
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MiX = MinX - (MaxX-MinX)*0.2f;
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MaX = MaxX + (MaxX-MinX)*0.2f;
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MiY = MinY - (MaxY-MinY)*0.2f;
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MaY = MaxY + (MaxY-MinY)*0.2f;
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}
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else {
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// make sure that nine of the numbers are exactly zero because log(0)
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// is not defined
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float xMin = std::abs(MinX) < FLT_EPSILON ? 0.01f : MinX;
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float xMax = std::abs(MaxX) < FLT_EPSILON ? 0.01f : MaxX;
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float yMin = std::abs(MinY) < FLT_EPSILON ? 0.01f : MinY;
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float yMax = std::abs(MaxY) < FLT_EPSILON ? 0.01f : MaxY;
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MiX = -exp(ceil(log(std::abs(xMin))));
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MiX = std::min<float>(MiX,(float)-exp(ceil(log(std::abs(0.1f*xMax)))));
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MaX = exp(ceil(log(std::abs(xMax))));
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MaX = std::max<float>(MaX,(float)exp(ceil(log(std::abs(0.1f*xMin)))));
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MiY = -exp(ceil(log(std::abs(yMin))));
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MiY = std::min<float>(MiY,(float)-exp(ceil(log(std::abs(0.1f*yMax)))));
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MaY = exp(ceil(log(std::abs(yMax))));
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MaY = std::max<float>(MaY,(float)exp(ceil(log(std::abs(0.1f*yMin)))));
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}
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//Round the values otherwise grid is not aligned with center
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MiX = (floor(MiX / Step)-0.5) * Step;
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MaX = (ceil(MaX / Step)+0.5) * Step;
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MiY = (floor(MiY / Step)-0.5) * Step;
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MaY = (ceil(MaY / Step)+0.5) * Step;
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double zGrid = 0.0; // carpet-grid separation
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SoGroup *parent = new Gui::SoSkipBoundingGroup();
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Gui::coinRemoveAllChildren(GridRoot);
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GridRoot->addChild(parent);
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SoBaseColor *mycolor;
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SoVertexProperty *vts;
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// gridlines
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mycolor = new SoBaseColor;
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mycolor->rgb.setValue(0.7f, 0.7f ,0.7f);
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parent->addChild(mycolor);
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if (GridStyle.getValue() == 0) {
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ParameterGrp::handle hGrp = App::GetApplication().GetParameterGroupByPath("User parameter:BaseApp/Preferences/Mod/Part");
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int pattern = hGrp->GetInt("GridLinePattern", 0x0f0f);
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SoDrawStyle* DefaultStyle = new SoDrawStyle;
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DefaultStyle->lineWidth = 1;
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DefaultStyle->linePattern = pattern;
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parent->addChild(DefaultStyle);
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}
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else {
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SoMaterial* LightStyle = new SoMaterial;
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LightStyle->transparency = 0.7f;
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parent->addChild(LightStyle);
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}
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SoPickStyle* PickStyle = new SoPickStyle;
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PickStyle->style = SoPickStyle::UNPICKABLE;
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parent->addChild(PickStyle);
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SoLineSet *grid = new SoLineSet;
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vts = new SoVertexProperty;
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grid->vertexProperty = vts;
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// vertical lines
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int vlines = static_cast<int>((MaX - MiX) / Step + 0.5f);
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// horizontal lines
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int hlines = static_cast<int>((MaY - MiY) / Step + 0.5f);
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int lines = vlines + hlines;
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if (lines > maxNumberOfLines.getValue()) {
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Base::Console().Warning("Grid Disabled: Requested number of lines %d is larger than the maximum configured of %d\n."
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"Either increase the 'GridSize' property to a more reasonable value (recommended) or increase the 'maxNumberOfLines' property.\n", lines, maxNumberOfLines.getValue());
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parent->addChild(vts);
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parent->addChild(grid);
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return GridRoot;
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}
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// set the grid indices
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grid->numVertices.setNum(lines);
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int32_t* vertices = grid->numVertices.startEditing();
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for (int i=0; i<lines; i++)
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vertices[i] = 2;
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grid->numVertices.finishEditing();
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// set the grid coordinates
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vts->vertex.setNum(2*lines);
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SbVec3f* vertex_coords = vts->vertex.startEditing();
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// vertical lines
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int i_offset_x = static_cast<int>(MiX / Step);
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for (int i=0; i<vlines; i++) {
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vertex_coords[2*i].setValue((i+i_offset_x)*Step, MiY, zGrid);
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vertex_coords[2*i+1].setValue((i+i_offset_x)*Step, MaY, zGrid);
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}
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// horizontal lines
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int i_offset_y = static_cast<int>(MiY / Step);
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for (int i=vlines; i<lines; i++) {
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vertex_coords[2*i].setValue(MiX, (i-vlines+i_offset_y)*Step, zGrid);
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vertex_coords[2*i+1].setValue(MaX, (i-vlines+i_offset_y)*Step, zGrid);
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}
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vts->vertex.finishEditing();
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parent->addChild(vts);
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parent->addChild(grid);
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return GridRoot;
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}
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void ViewProvider2DObjectGrid::updateData(const App::Property* prop)
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{
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ViewProvider2DObject::updateData(prop);
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if (prop->is<Part::PropertyPartShape>()) {
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if (GridAutoSize.getValue()) {
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Base::BoundBox3d bbox = static_cast<const Part::PropertyPartShape*>(prop)->getBoundingBox();
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if (!bbox.IsValid())
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return;
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Gui::coinRemoveAllChildren(GridRoot);
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Base::Placement place = static_cast<const Part::PropertyPartShape*>(prop)->getComplexData()->getPlacement();
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place.invert();
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Base::ViewOrthoProjMatrix proj(place.toMatrix());
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Base::BoundBox2d bbox2d = bbox.ProjectBox(&proj);
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this->MinX = bbox2d.MinX;
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this->MaxX = bbox2d.MaxX;
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this->MinY = bbox2d.MinY;
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this->MaxY = bbox2d.MaxY;
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}
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if (ShowGrid.getValue() && !(ShowOnlyInEditMode.getValue() && !this->isEditing()) ) {
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createGrid();
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}
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else {
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Gui::coinRemoveAllChildren(GridRoot);
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}
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}
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}
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void ViewProvider2DObjectGrid::onChanged(const App::Property* prop)
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{
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// call father
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ViewProviderPart::onChanged(prop);
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if (prop == &ShowGrid || prop == &ShowOnlyInEditMode || prop == &Visibility) {
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if (ShowGrid.getValue() && ((Visibility.getValue() && !ShowOnlyInEditMode.getValue()) || this->isEditing()))
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createGrid();
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else
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Gui::coinRemoveAllChildren(GridRoot);
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}
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if ((prop == &GridSize) || (prop == &GridStyle) || (prop == &TightGrid)) {
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if (ShowGrid.getValue() && !(ShowOnlyInEditMode.getValue() && !this->isEditing())) {
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createGrid();
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}
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}
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}
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void ViewProvider2DObjectGrid::Restore(Base::XMLReader &reader)
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{
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ViewProviderPart::Restore(reader);
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}
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void ViewProvider2DObjectGrid::handleChangedPropertyType(Base::XMLReader &reader,
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const char * TypeName,
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App::Property * prop)
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{
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Base::Type inputType = Base::Type::fromName(TypeName);
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if (prop->isDerivedFrom<App::PropertyFloat>() &&
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inputType.isDerivedFrom(App::PropertyFloat::getClassTypeId())) {
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// Do not directly call the property's Restore method in case the implementation
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// has changed. So, create a temporary PropertyFloat object and assign the value.
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App::PropertyFloat floatProp;
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floatProp.Restore(reader);
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static_cast<App::PropertyFloat*>(prop)->setValue(floatProp.getValue());
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}
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else {
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ViewProviderPart::handleChangedPropertyType(reader, TypeName, prop);
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}
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}
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void ViewProvider2DObjectGrid::attach(App::DocumentObject *pcFeat)
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{
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ViewProvider2DObject::attach(pcFeat);
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if (ShowGrid.getValue() && !(ShowOnlyInEditMode.getValue() && !this->isEditing()))
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createGrid();
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}
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bool ViewProvider2DObjectGrid::setEdit(int)
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{
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if (ShowGrid.getValue())
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createGrid();
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return false;
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}
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void ViewProvider2DObjectGrid::unsetEdit(int)
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{
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if (ShowGrid.getValue() && ShowOnlyInEditMode.getValue())
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Gui::coinRemoveAllChildren(GridRoot);
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}
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void ViewProvider2DObjectGrid::updateGridExtent(float minx, float maxx, float miny, float maxy)
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{
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bool redraw = false;
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if (minx < MinX || maxx > MaxX || miny < MinY || maxy > MaxY)
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redraw = true;
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MinX = minx;
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MaxX = maxx;
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MinY = miny;
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MaxY = maxy;
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if (redraw && ShowGrid.getValue() && !(ShowOnlyInEditMode.getValue() && !this->isEditing()))
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createGrid();
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}
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// -----------------------------------------------------------------------
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PROPERTY_SOURCE(PartGui::ViewProvider2DObject, PartGui::ViewProviderPart)
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ViewProvider2DObject::ViewProvider2DObject()
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: plane(new SoSwitch)
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{
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ADD_PROPERTY_TYPE(ShowPlane,
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(false),
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"Display Options",
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(App::PropertyType)(App::Prop_None),
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"If true, plane related with object is additionally rendered.");
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}
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ViewProvider2DObject::~ViewProvider2DObject() = default;
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void ViewProvider2DObject::attach(App::DocumentObject* documentObject)
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{
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ViewProviderPart::attach(documentObject);
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getAnnotation()->addChild(plane);
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updatePlane();
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}
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void ViewProvider2DObject::updateData(const App::Property* property)
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{
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ViewProviderPart::updateData(property);
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if (dynamic_cast<const Part::PropertyPartShape*>(property)) {
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updatePlane();
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}
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}
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void ViewProvider2DObject::onChanged(const App::Property* property)
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{
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ViewProviderPart::onChanged(property);
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if (property == &ShowPlane) {
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plane->whichChild = ShowPlane.getValue() ? SO_SWITCH_ALL : SO_SWITCH_NONE;
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}
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}
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std::vector<std::string> ViewProvider2DObject::getDisplayModes() const
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{
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// get the modes of the father
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std::vector<std::string> StrList = ViewProviderGeometryObject::getDisplayModes();
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// add your own modes
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StrList.emplace_back("Flat Lines");
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//StrList.push_back("Shaded");
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StrList.emplace_back("Wireframe");
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StrList.emplace_back("Points");
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return StrList;
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}
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const char* ViewProvider2DObject::getDefaultDisplayMode() const
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{
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return "Wireframe";
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}
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void ViewProvider2DObject::updatePlane()
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{
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plane->whichChild = ShowPlane.getValue() ? SO_SWITCH_ALL : SO_SWITCH_NONE;
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Gui::coinRemoveAllChildren(plane);
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auto shapeProperty = getObject()->getPropertyByName<Part::PropertyPartShape>("Shape");
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if (!shapeProperty) {
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return;
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}
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auto bbox = shapeProperty->getBoundingBox();
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Base::Placement place = shapeProperty->getComplexData()->getPlacement();
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Base::ViewOrthoProjMatrix proj(place.inverse().toMatrix());
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Base::BoundBox2d bb = bbox.ProjectBox(&proj);
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SbVec3f verts[4] = {
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SbVec3f(bb.MinX - horizontalPlanePadding, bb.MinY - verticalPlanePadding, 0),
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SbVec3f(bb.MinX - horizontalPlanePadding, bb.MaxY + verticalPlanePadding, 0),
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SbVec3f(bb.MaxX + horizontalPlanePadding, bb.MaxY + verticalPlanePadding, 0),
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SbVec3f(bb.MaxX + horizontalPlanePadding, bb.MinY - verticalPlanePadding, 0),
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};
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static const int32_t lines[6] = { 0, 1, 2, 3, 0, -1 };
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auto pCoords = new SoCoordinate3();
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pCoords->point.setNum(4);
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pCoords->point.setValues(0, 4, verts);
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plane->addChild(pCoords);
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auto pLines = new SoIndexedLineSet();
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pLines->coordIndex.setNum(6);
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pLines->coordIndex.setValues(0, 6, lines);
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plane->addChild(pLines);
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// add semi transparent face
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auto faceSeparator = new SoSeparator();
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plane->addChild(faceSeparator);
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auto material = new SoMaterial();
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SbColor color(1.0f, 1.0f, 0.0f);
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material->transparency.setValue(0.85f);
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material->ambientColor.setValue(color);
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material->diffuseColor.setValue(color);
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faceSeparator->addChild(material);
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// disable backface culling and render with two-sided lighting
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auto shapeHints = new SoShapeHints();
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shapeHints->vertexOrdering = SoShapeHints::COUNTERCLOCKWISE;
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shapeHints->shapeType = SoShapeHints::UNKNOWN_SHAPE_TYPE;
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faceSeparator->addChild(shapeHints);
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auto pickStyle = new SoPickStyle();
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pickStyle->style = SoPickStyle::UNPICKABLE;
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faceSeparator->addChild(pickStyle);
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auto faceSet = new SoFaceSet();
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auto vertexProperty = new SoVertexProperty();
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vertexProperty->vertex.setValues(0, 4, verts);
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faceSet->vertexProperty.setValue(vertexProperty);
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faceSeparator->addChild(faceSet);
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auto ps = new SoPickStyle();
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ps->style.setValue(SoPickStyle::BOUNDING_BOX);
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auto dashed = new SoDrawStyle();
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dashed->linePattern = 0xF0F0;
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auto annotation = new SoAnnotation();
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annotation->addChild(dashed);
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annotation->addChild(pLines);
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plane->addChild(annotation);
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plane->addChild(ps);
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}
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namespace Gui {
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/// @cond DOXERR
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PROPERTY_SOURCE_TEMPLATE(PartGui::ViewProvider2DObjectPython, PartGui::ViewProvider2DObject)
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/// @endcond
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// explicit template instantiation
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template class PartGuiExport ViewProviderFeaturePythonT<PartGui::ViewProvider2DObject>;
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}
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