Added OGL to contrib
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@6407 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
756
contrib/src/ogl/ogldiag.cpp
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756
contrib/src/ogl/ogldiag.cpp
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@@ -0,0 +1,756 @@
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/////////////////////////////////////////////////////////////////////////////
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// Name: ogldiag.cpp
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// Purpose: wxDiagram
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// Author: Julian Smart
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// Modified by:
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// Created: 12/07/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "ogldiag.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include <wx/wxprec.h>
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include <wx/wx.h>
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#endif
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#include <wx/wxexpr.h>
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#if wxUSE_IOSTREAMH
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#include <iostream.h>
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#include <fstream.h>
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#else
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#include <iostream>
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#include <fstream>
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#ifdef _MSC_VER
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using namespace std;
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#endif
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#endif
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#include <ctype.h>
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#include <math.h>
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#include <stdlib.h>
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#include <wx/ogl/basic.h>
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#include <wx/ogl/basicp.h>
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#include <wx/ogl/canvas.h>
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#include <wx/ogl/ogldiag.h>
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#include <wx/ogl/lines.h>
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#include <wx/ogl/composit.h>
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#include <wx/ogl/misc.h>
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IMPLEMENT_DYNAMIC_CLASS(wxDiagram, wxObject)
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// Object canvas
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wxDiagram::wxDiagram()
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{
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m_diagramCanvas = NULL;
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m_quickEditMode = FALSE;
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m_snapToGrid = TRUE;
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m_gridSpacing = 5.0;
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m_shapeList = new wxList;
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m_mouseTolerance = DEFAULT_MOUSE_TOLERANCE;
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}
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wxDiagram::~wxDiagram()
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{
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if (m_shapeList)
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delete m_shapeList;
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}
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void wxDiagram::SetSnapToGrid(bool snap)
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{
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m_snapToGrid = snap;
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}
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void wxDiagram::SetGridSpacing(double spacing)
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{
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m_gridSpacing = spacing;
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}
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void wxDiagram::Snap(double *x, double *y)
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{
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if (m_snapToGrid)
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{
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*x = m_gridSpacing * ((int)(*x/m_gridSpacing + 0.5));
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*y = m_gridSpacing * ((int)(*y/m_gridSpacing + 0.5));
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}
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}
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void wxDiagram::Redraw(wxDC& dc)
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{
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if (m_shapeList)
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{
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if (GetCanvas())
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GetCanvas()->SetCursor(* wxHOURGLASS_CURSOR);
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wxNode *current = m_shapeList->First();
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while (current)
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{
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wxShape *object = (wxShape *)current->Data();
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if (!object->GetParent())
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object->Draw(dc);
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current = current->Next();
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}
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if (GetCanvas())
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GetCanvas()->SetCursor(* wxSTANDARD_CURSOR);
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}
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}
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void wxDiagram::Clear(wxDC& dc)
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{
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dc.Clear();
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}
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// Insert object after addAfter, or at end of list.
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void wxDiagram::AddShape(wxShape *object, wxShape *addAfter)
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{
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wxNode *nodeAfter = NULL;
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if (addAfter)
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nodeAfter = m_shapeList->Member(addAfter);
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if (!m_shapeList->Member(object))
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{
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if (nodeAfter)
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{
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if (nodeAfter->Next())
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m_shapeList->Insert(nodeAfter->Next(), object);
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else
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m_shapeList->Append(object);
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}
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else
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m_shapeList->Append(object);
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object->SetCanvas(GetCanvas());
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}
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}
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void wxDiagram::InsertShape(wxShape *object)
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{
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m_shapeList->Insert(object);
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object->SetCanvas(GetCanvas());
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}
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void wxDiagram::RemoveShape(wxShape *object)
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{
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m_shapeList->DeleteObject(object);
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}
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// Should this delete the actual objects too? I think not.
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void wxDiagram::RemoveAllShapes()
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{
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m_shapeList->Clear();
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}
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void wxDiagram::DeleteAllShapes()
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{
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wxNode *node = m_shapeList->First();
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while (node)
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{
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wxShape *shape = (wxShape *)node->Data();
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if (!shape->GetParent())
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{
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RemoveShape(shape);
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delete shape;
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node = m_shapeList->First();
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}
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else
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node = node->Next();
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}
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}
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void wxDiagram::ShowAll(bool show)
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{
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wxNode *current = m_shapeList->First();
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while (current)
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{
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wxShape *object = (wxShape *)current->Data();
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object->Show(show);
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current = current->Next();
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}
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}
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void wxDiagram::DrawOutline(wxDC& dc, double x1, double y1, double x2, double y2)
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{
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wxPen dottedPen(wxColour(0, 0, 0), 1, wxDOT);
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dc.SetPen(dottedPen);
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dc.SetBrush((* wxTRANSPARENT_BRUSH));
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wxPoint points[5];
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points[0].x = (int) x1;
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points[0].y = (int) y1;
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points[1].x = (int) x2;
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points[1].y = (int) y1;
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points[2].x = (int) x2;
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points[2].y = (int) y2;
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points[3].x = (int) x1;
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points[3].y = (int) y2;
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points[4].x = (int) x1;
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points[4].y = (int) y1;
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dc.DrawLines(5, points);
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}
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// Make sure all text that should be centred, is centred.
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void wxDiagram::RecentreAll(wxDC& dc)
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{
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wxNode *object_node = m_shapeList->First();
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while (object_node)
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{
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wxShape *obj = (wxShape *)object_node->Data();
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obj->Recentre(dc);
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object_node = object_node->Next();
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}
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}
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// Input/output
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#ifdef PROLOGIO
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bool wxDiagram::SaveFile(const wxString& filename)
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{
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wxBeginBusyCursor();
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wxExprDatabase *database = new wxExprDatabase;
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// First write the diagram type
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wxExpr *header = new wxExpr("diagram");
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OnHeaderSave(*database, *header);
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database->Append(header);
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wxNode *node = m_shapeList->First();
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while (node)
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{
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wxShape *shape = (wxShape *)node->Data();
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if (!shape->IsKindOf(CLASSINFO(wxControlPoint)))
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{
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wxExpr *expr = NULL;
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if (shape->IsKindOf(CLASSINFO(wxLineShape)))
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expr = new wxExpr("line");
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else
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expr = new wxExpr("shape");
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OnShapeSave(*database, *shape, *expr);
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}
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node = node->Next();
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}
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OnDatabaseSave(*database);
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char tempFile[400];
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wxGetTempFileName("diag", tempFile);
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FILE* file = fopen(tempFile, "w");
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if (! file)
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{
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wxEndBusyCursor();
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delete database;
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return FALSE;
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}
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database->Write(file);
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fclose(file);
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delete database;
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/*
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// Save backup
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if (FileExists(filename))
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{
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char buf[400];
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#ifdef __X__
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sprintf(buf, "%s.bak", filename);
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#endif
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#ifdef __WXMSW__
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sprintf(buf, "_diagram.bak");
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#endif
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if (FileExists(buf)) wxRemoveFile(buf);
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if (!wxRenameFile(filename, buf))
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{
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wxCopyFile(filename, buf);
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wxRemoveFile(filename);
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}
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}
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*/
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// Copy the temporary file to the correct filename
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if (!wxRenameFile(tempFile, filename))
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{
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wxCopyFile(tempFile, filename);
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wxRemoveFile(tempFile);
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}
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wxEndBusyCursor();
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return TRUE;
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}
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bool wxDiagram::LoadFile(const wxString& filename)
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{
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wxBeginBusyCursor();
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wxExprDatabase database(wxExprInteger, "id");
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if (!database.Read(filename))
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{
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wxEndBusyCursor();
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return FALSE;
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}
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DeleteAllShapes();
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database.BeginFind();
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wxExpr *header = database.FindClauseByFunctor("diagram");
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if (header)
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OnHeaderLoad(database, *header);
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// Scan through all clauses and register the ids
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wxNode *node = database.First();
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while (node)
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{
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wxExpr *clause = (wxExpr *)node->Data();
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long id = -1;
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clause->GetAttributeValue("id", id);
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wxRegisterId(id);
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node = node->Next();
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}
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ReadNodes(database);
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ReadContainerGeometry(database);
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ReadLines(database);
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OnDatabaseLoad(database);
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wxEndBusyCursor();
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return TRUE;
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}
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void wxDiagram::ReadNodes(wxExprDatabase& database)
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{
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// Find and create the node images
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database.BeginFind();
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wxExpr *clause = database.FindClauseByFunctor("shape");
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while (clause)
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{
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char *type = NULL;
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long parentId = -1;
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clause->AssignAttributeValue("type", &type);
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clause->AssignAttributeValue("parent", &parentId);
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wxClassInfo *classInfo = wxClassInfo::FindClass(type);
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if (classInfo)
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{
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wxShape *shape = (wxShape *)classInfo->CreateObject();
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OnShapeLoad(database, *shape, *clause);
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shape->SetCanvas(GetCanvas());
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shape->Show(TRUE);
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m_shapeList->Append(shape);
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// If child of composite, link up
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if (parentId > -1)
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{
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wxExpr *parentExpr = database.HashFind("shape", parentId);
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if (parentExpr && parentExpr->GetClientData())
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{
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wxShape *parent = (wxShape *)parentExpr->GetClientData();
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shape->SetParent(parent);
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parent->GetChildren().Append(shape);
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}
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}
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clause->SetClientData(shape);
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}
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if (type)
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delete[] type;
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clause = database.FindClauseByFunctor("shape");
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}
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return;
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}
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void wxDiagram::ReadLines(wxExprDatabase& database)
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{
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database.BeginFind();
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wxExpr *clause = database.FindClauseByFunctor("line");
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while (clause)
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{
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wxString type("");
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long parentId = -1;
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clause->GetAttributeValue("type", type);
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clause->GetAttributeValue("parent", parentId);
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wxClassInfo *classInfo = wxClassInfo::FindClass((char*) (const char*) type);
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if (classInfo)
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{
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wxLineShape *shape = (wxLineShape *)classInfo->CreateObject();
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shape->Show(TRUE);
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OnShapeLoad(database, *shape, *clause);
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shape->SetCanvas(GetCanvas());
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long image_to = -1; long image_from = -1;
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clause->GetAttributeValue("to", image_to);
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clause->GetAttributeValue("from", image_from);
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wxExpr *image_to_expr = database.HashFind("shape", image_to);
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if (!image_to_expr)
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{
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// Error
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}
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wxExpr *image_from_expr = database.HashFind("shape", image_from);
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if (!image_from_expr)
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{
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// Error
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}
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if (image_to_expr && image_from_expr)
|
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{
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wxShape *image_to_object = (wxShape *)image_to_expr->GetClientData();
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wxShape *image_from_object = (wxShape *)image_from_expr->GetClientData();
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if (image_to_object && image_from_object)
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{
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image_from_object->AddLine(shape, image_to_object, shape->GetAttachmentFrom(), shape->GetAttachmentTo());
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}
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}
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clause->SetClientData(shape);
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m_shapeList->Append(shape);
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}
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|
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clause = database.FindClauseByFunctor("line");
|
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}
|
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}
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// Containers have divisions that reference adjoining divisions,
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// so we need a separate pass to link everything up.
|
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// Also used by Symbol Library.
|
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void wxDiagram::ReadContainerGeometry(wxExprDatabase& database)
|
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{
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database.BeginFind();
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wxExpr *clause = database.FindClauseByFunctor("shape");
|
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while (clause)
|
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{
|
||||
wxShape *image = (wxShape *)clause->GetClientData();
|
||||
if (image && image->IsKindOf(CLASSINFO(wxCompositeShape)))
|
||||
{
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wxCompositeShape *composite = (wxCompositeShape *)image;
|
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wxExpr *divisionExpr = NULL;
|
||||
|
||||
// Find the list of divisions in the composite
|
||||
clause->GetAttributeValue("divisions", &divisionExpr);
|
||||
if (divisionExpr)
|
||||
{
|
||||
int i = 0;
|
||||
wxExpr *idExpr = divisionExpr->Nth(i);
|
||||
while (idExpr)
|
||||
{
|
||||
long divisionId = idExpr->IntegerValue();
|
||||
wxExpr *childExpr = database.HashFind("shape", divisionId);
|
||||
if (childExpr && childExpr->GetClientData())
|
||||
{
|
||||
wxDivisionShape *child = (wxDivisionShape *)childExpr->GetClientData();
|
||||
composite->GetDivisions().Append(child);
|
||||
|
||||
// Find the adjoining shapes
|
||||
long leftSideId = -1;
|
||||
long topSideId = -1;
|
||||
long rightSideId = -1;
|
||||
long bottomSideId = -1;
|
||||
childExpr->GetAttributeValue("left_side", leftSideId);
|
||||
childExpr->GetAttributeValue("top_side", topSideId);
|
||||
childExpr->GetAttributeValue("right_side", rightSideId);
|
||||
childExpr->GetAttributeValue("bottom_side", bottomSideId);
|
||||
if (leftSideId > -1)
|
||||
{
|
||||
wxExpr *leftExpr = database.HashFind("shape", leftSideId);
|
||||
if (leftExpr && leftExpr->GetClientData())
|
||||
{
|
||||
wxDivisionShape *leftSide = (wxDivisionShape *)leftExpr->GetClientData();
|
||||
child->SetLeftSide(leftSide);
|
||||
}
|
||||
}
|
||||
if (topSideId > -1)
|
||||
{
|
||||
wxExpr *topExpr = database.HashFind("shape", topSideId);
|
||||
if (topExpr && topExpr->GetClientData())
|
||||
{
|
||||
wxDivisionShape *topSide = (wxDivisionShape *)topExpr->GetClientData();
|
||||
child->SetTopSide(topSide);
|
||||
}
|
||||
}
|
||||
if (rightSideId > -1)
|
||||
{
|
||||
wxExpr *rightExpr = database.HashFind("shape", rightSideId);
|
||||
if (rightExpr && rightExpr->GetClientData())
|
||||
{
|
||||
wxDivisionShape *rightSide = (wxDivisionShape *)rightExpr->GetClientData();
|
||||
child->SetRightSide(rightSide);
|
||||
}
|
||||
}
|
||||
if (bottomSideId > -1)
|
||||
{
|
||||
wxExpr *bottomExpr = database.HashFind("shape", bottomSideId);
|
||||
if (bottomExpr && bottomExpr->GetClientData())
|
||||
{
|
||||
wxDivisionShape *bottomSide = (wxDivisionShape *)bottomExpr->GetClientData();
|
||||
child->SetBottomSide(bottomSide);
|
||||
}
|
||||
}
|
||||
}
|
||||
i ++;
|
||||
idExpr = divisionExpr->Nth(i);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
clause = database.FindClauseByFunctor("shape");
|
||||
}
|
||||
}
|
||||
|
||||
// Allow for modifying file
|
||||
bool wxDiagram::OnDatabaseLoad(wxExprDatabase& db)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
bool wxDiagram::OnDatabaseSave(wxExprDatabase& db)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
bool wxDiagram::OnShapeSave(wxExprDatabase& db, wxShape& shape, wxExpr& expr)
|
||||
{
|
||||
shape.WriteAttributes(&expr);
|
||||
db.Append(&expr);
|
||||
|
||||
if (shape.IsKindOf(CLASSINFO(wxCompositeShape)))
|
||||
{
|
||||
wxNode *node = shape.GetChildren().First();
|
||||
while (node)
|
||||
{
|
||||
wxShape *childShape = (wxShape *)node->Data();
|
||||
wxExpr *childExpr = new wxExpr("shape");
|
||||
OnShapeSave(db, *childShape, *childExpr);
|
||||
node = node->Next();
|
||||
}
|
||||
}
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
bool wxDiagram::OnShapeLoad(wxExprDatabase& db, wxShape& shape, wxExpr& expr)
|
||||
{
|
||||
shape.ReadAttributes(&expr);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
bool wxDiagram::OnHeaderSave(wxExprDatabase& db, wxExpr& expr)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
bool wxDiagram::OnHeaderLoad(wxExprDatabase& db, wxExpr& expr)
|
||||
{
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void wxDiagram::SetCanvas(wxShapeCanvas *can)
|
||||
{
|
||||
m_diagramCanvas = can;
|
||||
}
|
||||
|
||||
// Find a shape by its id
|
||||
wxShape* wxDiagram::FindShape(long id) const
|
||||
{
|
||||
wxNode* node = GetShapeList()->First();
|
||||
while (node)
|
||||
{
|
||||
wxShape* shape = (wxShape*) node->Data();
|
||||
if (shape->GetId() == id)
|
||||
return shape;
|
||||
node = node->Next();
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
//// Crossings classes
|
||||
|
||||
wxLineCrossings::wxLineCrossings()
|
||||
{
|
||||
}
|
||||
|
||||
wxLineCrossings::~wxLineCrossings()
|
||||
{
|
||||
ClearCrossings();
|
||||
}
|
||||
|
||||
void wxLineCrossings::FindCrossings(wxDiagram& diagram)
|
||||
{
|
||||
ClearCrossings();
|
||||
wxNode* node1 = diagram.GetShapeList()->First();
|
||||
while (node1)
|
||||
{
|
||||
wxShape* shape1 = (wxShape*) node1->Data();
|
||||
if (shape1->IsKindOf(CLASSINFO(wxLineShape)))
|
||||
{
|
||||
wxLineShape* lineShape1 = (wxLineShape*) shape1;
|
||||
// Iterate through the segments
|
||||
wxList* pts1 = lineShape1->GetLineControlPoints();
|
||||
int i;
|
||||
for (i = 0; i < (pts1->Number() - 1); i++)
|
||||
{
|
||||
wxRealPoint* pt1_a = (wxRealPoint*) (pts1->Nth(i)->Data());
|
||||
wxRealPoint* pt1_b = (wxRealPoint*) (pts1->Nth(i+1)->Data());
|
||||
|
||||
// Now we iterate through the segments again
|
||||
|
||||
wxNode* node2 = diagram.GetShapeList()->First();
|
||||
while (node2)
|
||||
{
|
||||
wxShape* shape2 = (wxShape*) node2->Data();
|
||||
|
||||
// Assume that the same line doesn't cross itself
|
||||
if (shape2->IsKindOf(CLASSINFO(wxLineShape)) && (shape1 != shape2))
|
||||
{
|
||||
wxLineShape* lineShape2 = (wxLineShape*) shape2;
|
||||
// Iterate through the segments
|
||||
wxList* pts2 = lineShape2->GetLineControlPoints();
|
||||
int j;
|
||||
for (j = 0; j < (pts2->Number() - 1); j++)
|
||||
{
|
||||
wxRealPoint* pt2_a = (wxRealPoint*) (pts2->Nth(j)->Data());
|
||||
wxRealPoint* pt2_b = (wxRealPoint*) (pts2->Nth(j+1)->Data());
|
||||
|
||||
// Now let's see if these two segments cross.
|
||||
double ratio1, ratio2;
|
||||
oglCheckLineIntersection(pt1_a->x, pt1_a->y, pt1_b->x, pt1_b->y,
|
||||
pt2_a->x, pt2_a->y, pt2_b->x, pt2_b->y,
|
||||
& ratio1, & ratio2);
|
||||
|
||||
if ((ratio1 < 1.0) && (ratio1 > -1.0))
|
||||
{
|
||||
// Intersection!
|
||||
wxLineCrossing* crossing = new wxLineCrossing;
|
||||
crossing->m_intersect.x = (pt1_a->x + (pt1_b->x - pt1_a->x)*ratio1);
|
||||
crossing->m_intersect.y = (pt1_a->y + (pt1_b->y - pt1_a->y)*ratio1);
|
||||
|
||||
crossing->m_pt1 = * pt1_a;
|
||||
crossing->m_pt2 = * pt1_b;
|
||||
crossing->m_pt3 = * pt2_a;
|
||||
crossing->m_pt4 = * pt2_b;
|
||||
|
||||
crossing->m_lineShape1 = lineShape1;
|
||||
crossing->m_lineShape2 = lineShape2;
|
||||
|
||||
m_crossings.Append(crossing);
|
||||
}
|
||||
}
|
||||
}
|
||||
node2 = node2->Next();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
node1 = node1->Next();
|
||||
}
|
||||
}
|
||||
|
||||
void wxLineCrossings::DrawCrossings(wxDiagram& diagram, wxDC& dc)
|
||||
{
|
||||
dc.SetBrush(*wxTRANSPARENT_BRUSH);
|
||||
|
||||
long arcWidth = 8;
|
||||
|
||||
wxNode* node = m_crossings.First();
|
||||
while (node)
|
||||
{
|
||||
wxLineCrossing* crossing = (wxLineCrossing*) node->Data();
|
||||
// dc.DrawEllipse((long) (crossing->m_intersect.x - (arcWidth/2.0) + 0.5), (long) (crossing->m_intersect.y - (arcWidth/2.0) + 0.5),
|
||||
// arcWidth, arcWidth);
|
||||
|
||||
|
||||
// Let's do some geometry to find the points on either end of the arc.
|
||||
/*
|
||||
|
||||
(x1, y1)
|
||||
|\
|
||||
| \
|
||||
| \
|
||||
| \
|
||||
| \
|
||||
| |\ c c1
|
||||
| a | \
|
||||
| \
|
||||
| - x <-- centre of arc
|
||||
a1 | b |\
|
||||
| | \ c2
|
||||
| a2 | \
|
||||
| - \
|
||||
| b2 \
|
||||
| \
|
||||
|_______________\ (x2, y2)
|
||||
b1
|
||||
|
||||
*/
|
||||
|
||||
double a1 = wxMax(crossing->m_pt1.y, crossing->m_pt2.y) - wxMin(crossing->m_pt1.y, crossing->m_pt2.y) ;
|
||||
double b1 = wxMax(crossing->m_pt1.x, crossing->m_pt2.x) - wxMin(crossing->m_pt1.x, crossing->m_pt2.x) ;
|
||||
double c1 = sqrt( (a1*a1) + (b1*b1) );
|
||||
|
||||
double c = arcWidth / 2.0;
|
||||
double a = c * a1/c1 ;
|
||||
double b = c * b1/c1 ;
|
||||
|
||||
// I'm not sure this is right, since we don't know which direction we should be going in - need
|
||||
// to know which way the line slopes and choose the sign appropriately.
|
||||
double arcX1 = crossing->m_intersect.x - b;
|
||||
double arcY1 = crossing->m_intersect.y - a;
|
||||
|
||||
double arcX2 = crossing->m_intersect.x + b;
|
||||
double arcY2 = crossing->m_intersect.y + a;
|
||||
|
||||
dc.SetPen(*wxBLACK_PEN);
|
||||
dc.DrawArc( (long) arcX1, (long) arcY1, (long) arcX2, (long) arcY2,
|
||||
(long) crossing->m_intersect.x, (long) crossing->m_intersect.y);
|
||||
|
||||
dc.SetPen(*wxWHITE_PEN);
|
||||
dc.DrawLine( (long) arcX1, (long) arcY1, (long) arcX2, (long) arcY2 );
|
||||
|
||||
node = node->Next();
|
||||
}
|
||||
}
|
||||
|
||||
void wxLineCrossings::ClearCrossings()
|
||||
{
|
||||
wxNode* node = m_crossings.First();
|
||||
while (node)
|
||||
{
|
||||
wxLineCrossing* crossing = (wxLineCrossing*) node->Data();
|
||||
delete crossing;
|
||||
node = node->Next();
|
||||
}
|
||||
m_crossings.Clear();
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user