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////////////////////////////////////////////////////////////////////////////////
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// This file is part of Toolkit for Conceptual Modeling (TCM).
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// (c) copyright 1996, Vrije Universiteit Amsterdam.
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// Author: Frank Dehne (frank@cs.vu.nl).
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// TCM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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// TCM 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 General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with TCM; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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////////////////////////////////////////////////////////////////////////////////
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#include "inputfile.h"
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#include "outputfile.h"
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#include "linepiece.h"
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LinePiece::LinePiece(Grafport *g, Point *from, Point *to,
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LineStyle::Type t, unsigned n) {
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void LinePiece::Draw() {
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grafport->SetLineWidth(lineWidth);
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grafport->SetLineStyle(lineStyle);
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grafport->DrawLine(beginP.x, beginP.y, endP.x, endP.y);
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void LinePiece::Undraw() {
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void LinePiece::UpdateLineStyle(LineStyle::Type t) {
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void LinePiece::UpdateLineWidth(unsigned n) {
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bool LinePiece::HitLine(int x, int y) {
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// should be like containptline in Line::
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return (beginP.x <= x && x <= endP.x && beginP.y <= y && y <= endP.y);
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void LinePiece::UpdatePoints(const Point *p1, const Point *p2) {
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void LinePiece::UpdateBegin(const Point *p) {
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void LinePiece::UpdateEnd(const Point *p) {
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void LinePiece::Write(OutputFile *ofile) {
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LineStyle::Type2String(lineStyle, &nm);
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(*ofile) << "\t{ LineStyle " << nm << " }\n";
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(*ofile) << "\t{ LineWidth " << lineWidth << " }\n";
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bool LinePiece::Read(InputFile *ifile, double format) {
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visible = False; // avoid multiple redraws
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if (format <= 1.08) {
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if (!ifile->ReadAttribute("LineType", &val))
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if (val.toint() != lineStyle)
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lineStyle = (LineStyle::Type)val.toint();
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if (!ifile->ReadAttribute("LineStyle", &val))
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lineStyle = LineStyle::String2Type(&val);
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if (format >= 1.22) {
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if (!ifile->ReadAttribute("LineWidth", &val))
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lineWidth = val.toint();