crdiagram.c

这个工具集提供以下结构化分析和UML分析中所用的图形化绘图工具：ER-diagrams, data and event flow diagrams and state-transition diagr

////////////////////////////////////////////////////////////////////////////////
//
// This file is part of Toolkit for Conceptual Modeling (TCM).
// (c) copyright 1995, Vrije Universiteit Amsterdam.
// Author: Frank Dehne ([e-mail]).
//
// TCM is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// TCM 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with TCM; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.
////////////////////////////////////////////////////////////////////////////////
#include "crgraph.h"
#include "crwindow.h"
#include "crviewer.h"
#include "crchecks.h"
#include "messagedialog.h"
#include "grafport.h"
#include "tripleclassbox.h"
#include "doubleclassbox.h"
#include "c1arrow.h"
#include "c2r2line.h"
#include "binaryrelationship.h"
#include "componentfunction.h"
#include "isarelationship.h"
#include "modejunction.h"
#include "emptyedge.h"
#include "miniellipse.h"
#include "textbox.h"
#include "comment.h"
#include "crdiagram.h"
#include <limits.h>

CRDiagram::CRDiagram(Config *c, CRWindow *d, CRViewer *v, CRGraph *g): 
	   ERDiagram(c, d, v, g) {
	UpdateNodeType(1);
        UpdateEdgeType(1);
	crChecks = new CRChecks(this, g);
}

CRDiagram::~CRDiagram() {
	delete crChecks;
}

Thing *CRDiagram::CreateThing(int classNr) {
	Grafport *g = GetDiagramViewer()->GetGrafport();
	ShapeView *v = GetDiagramViewer()->GetCurView();
	CRGraph *cg = (CRGraph *)GetGraph();
	Thing *thing = 0;
	// view
	if (classNr == Code::VIEW)
		thing = new ShapeView(GetDiagramViewer());

	// node shapes
	else if (classNr==Code::TRIPLE_BOX)
		thing = new TripleClassBox(v, g, 0, 0); 
	else if (classNr==Code::DOUBLE_BOX)
		thing = new DoubleClassBox(v, g, 0, 0); 
	else if (classNr==Code::BOX)
		thing = new Box(v, g, 0, 0); 
	else if (classNr == Code::MINI_ELLIPSE) {
		MiniEllipse *ellipse = new MiniEllipse(v, g, 0, 0);
		// extra for older diagram versions.
		ellipse->SetFixedName(False); 
		thing = ellipse;
	}
	else if (classNr==Code::TEXT_BOX)
		thing = new TextBox(v, g, 0, 0); 

	// lines
	else if (classNr==Code::T1_LINE)
		thing = new C1Arrow(v, g, 0, 0, 0);
	else if (classNr==Code::T4_LINE || classNr==Code::C2R2_LINE)
		thing = new C2R2Line(v, g, 0, 0, 0);
	else if (classNr==Code::LINE)
		thing = new Line(v, g, 0, 0, 0);

	// (T1_)ARROW and DOUBLE_ARROW from old file formats.
	else if (classNr==Code::T1_ARROW)
		thing = new C1Arrow(v, g, 0, 0, 0);
	else if (classNr==Code::ARROW) {
		Line *line = new Line(v, g, 0, 0, 0);
		line->SetEnd2(LineEnd::FILLED_ARROW);
		line->SetFixedName(True);
		thing = line;
	}
	else if (classNr==Code::DOUBLE_ARROW) {
		Line *line = new Line(v, g, 0, 0, 0);
		line->SetEnd1(LineEnd::FILLED_ARROW);
		line->SetEnd2(LineEnd::FILLED_ARROW);
		thing = line;
	}

	// nodes
	else if (classNr==Code::CLASS_NODE)
		thing = new ClassNode(cg);
	else if (classNr==Code::TAXONOMY_JUNCTION)
		thing = new TaxonomyJunction(cg);
	else if (classNr==Code::MODE_JUNCTION)
		thing = new ModeJunction(cg);
	else if (classNr==Code::COMMENT)
		thing = new Comment(cg);

	// edges
	else if (classNr==Code::BINARY_RELATIONSHIP)
		thing = new BinaryRelationship(cg, 0, 0);
	else if (classNr==Code::FUNCTION)
		thing = new Function(cg, 0, 0);
	else if (classNr==Code::COMPONENT_FUNCTION)
		thing = new ComponentFunction(cg, 0, 0);
	else if (classNr==Code::EMPTY_EDGE)
		thing = new EmptyEdge(cg, 0, 0);
	else if (classNr==Code::ISA_RELATIONSHIP)
		thing = new IsaRelationship(cg, 0, 0);
	else
		error("%s, line %d: impl error: wrong class number %d\n", 
			__FILE__, __LINE__, classNr);
	return thing;
}
 
Node *CRDiagram::CreateNode(){
	Node *node = 0;
	CRGraph *g = (CRGraph *)GetGraph();
	if (GetNodeType()==Code::MODE_JUNCTION)
		node = new ModeJunction(g);
	else if (GetNodeType()==Code::TAXONOMY_JUNCTION)
		node = new TaxonomyJunction(g);
	else if (GetNodeType()==Code::CLASS_NODE)
		node = new ClassNode(g);
	else if (GetNodeType()==Code::COMMENT)
		node = new Comment(g);
	else
		error( "%s, line %d: impl error: unknown node type\n", 
			__FILE__, __LINE__);
	return node;
}

Edge *CRDiagram::CreateEdge(Subject *subj1, Subject *subj2){
	if (!CheckEdgeConstraints(subj1, subj2))
		return 0;
	Edge *edge = 0;
	CRGraph *g = (CRGraph *)GetGraph();
	if (GetEdgeType() == Code::EMPTY_EDGE)
		edge = new EmptyEdge(g, subj1, subj2);
	else if (GetEdgeType() == Code::FUNCTION)
		edge = new Function(g, subj1, subj2);
	else if (GetEdgeType() == Code::BINARY_RELATIONSHIP)
		edge = new BinaryRelationship(g, subj1, subj2);
	else if (GetEdgeType() == Code::COMPONENT_FUNCTION)
		edge = new ComponentFunction(g, subj1, subj2);
	else if (GetEdgeType() == Code::ISA_RELATIONSHIP)
		edge = new IsaRelationship(g, subj1, subj2);
	else
		error( "%s, line %d: impl error: unknown edge type\n", 
			__FILE__, __LINE__);

	if (GetEdgeType() == Code::EMPTY_EDGE || 
		GetEdgeType() == Code::ISA_RELATIONSHIP) {
		if (!CheckIsaLoop(edge) || !CheckTaxonomyCombination(edge)) {
			delete edge;
			return 0;
		}
	}
	return edge;
}

NodeShape *CRDiagram::CreateNodeShape(Node *node, int x, int y) {
	NodeShape *shape = 0;
	Grafport *g = GetDiagramViewer()->GetGrafport();
	ShapeView *v = GetDiagramViewer()->GetCurView();
	if (GetNodeShapeType() == Code::BOX)
		shape = new Box(v, g, x, y);
	else if (GetNodeShapeType() == Code::MINI_ELLIPSE) {
		shape = new MiniEllipse(v, g, x, y);
		shape->SetFixedName(False);
	}
	else if (GetNodeShapeType() == Code::DOUBLE_BOX)
		shape = new DoubleClassBox(v, g, x, y);
	else if (GetNodeShapeType() == Code::TEXT_BOX)
		shape = new TextBox(v, g, x, y);
	else if (GetNodeShapeType() == Code::TRIPLE_BOX)
		shape = new TripleClassBox(v, g, x, y);
	else
		error( "%s, line %d: impl error: "
			"node shape type doesn't exist\n", __FILE__, __LINE__);
	
	if (check(shape)) {
		shape->SetSubject(node);
		shape->SetTextShape();
	}
	return shape;
}

Line *CRDiagram::CreateLine(
		Edge *edge, GShape *from, GShape *to, List<Point *> *l) {
	Grafport *g = GetDiagramViewer()->GetGrafport();
	ShapeView *v = GetDiagramViewer()->GetCurView();
	Line *line = 0;
	if (GetLineType()== Code::T1_LINE)
		line = new C1Arrow(v, g, from, to, l, IsCurve());
	else if (GetLineType()== Code::C2R2_LINE)
		line = new C2R2Line(v, g, from, to, l, IsCurve());
	else if (GetLineType()== Code::LINE)
		line = new Line(v, g, from, to, l, IsCurve());
	else
		error( "%s, line %d: impl error: "
			"line type does not exist\n", __FILE__, __LINE__);
	
	if (check(line)) {
		line->SetSubject(edge);
		line->SetTextShape();
		line->SetEnd1(GetLineEnd1());
		line->SetEnd2(GetLineEnd2());
		if (GetEdgeType()==Code::EMPTY_EDGE ||
		    GetEdgeType()==Code::ISA_RELATIONSHIP)
			line->SetFixedName(True);
		if (GetLineEnd1()==LineEnd::FILLED_ARROW) {
			if (edge->GetClassType()==Code::FUNCTION) {
				string constr("1");
				((Function *)edge)->SetConstraint(&constr);
			}
		}
	}
	return line;
}

void CRDiagram::UpdateNodeType(int num) {
	((DiagramWindow *)GetMainWindow())->SetNodeName(num);
	switch (num) {
	case 1: SetNodeType(Code::CLASS_NODE);
		SetNodeShapeType(Code::BOX);
		SetNodeLineStyle(LineStyle::SOLID);
		break;
	case 2: SetNodeType(Code::CLASS_NODE);
		SetNodeShapeType(Code::DOUBLE_BOX);
		SetNodeLineStyle(LineStyle::SOLID);
		break;
	case 3: SetNodeType(Code::CLASS_NODE);
		SetNodeShapeType(Code::TRIPLE_BOX);
		SetNodeLineStyle(LineStyle::SOLID);
		break;
	case 4: SetNodeType(Code::TAXONOMY_JUNCTION);
		SetNodeShapeType(Code::MINI_ELLIPSE);
		SetNodeLineStyle(LineStyle::SOLID);
		break;
	case 5: SetNodeType(Code::MODE_JUNCTION);
		SetNodeShapeType(Code::MINI_ELLIPSE);
		SetNodeLineStyle(LineStyle::DASHED);
		break;
	case 6: SetNodeType(Code::COMMENT);
		SetNodeShapeType(Code::TEXT_BOX);
		SetNodeLineStyle(LineStyle::INVISIBLE);
		break;
	default:
		error("%s, line %d: impl error: "
			"unknown node type selected\n", __FILE__,__LINE__);
	}
}

void CRDiagram::UpdateEdgeType(int num) {
	((DiagramWindow *)GetMainWindow())->SetEdgeName(num);
	switch(num) {
	case 1: SetEdgeType(Code::BINARY_RELATIONSHIP);
		SetLineType(Code::C2R2_LINE);
		SetEdgeLineStyle(LineStyle::SOLID);
		SetLineEnd1(LineEnd::EMPTY);