116 lines
1.9 KiB
Java
116 lines
1.9 KiB
Java
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//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[ue] [\"{u}]
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//[ae] [\"{a}]
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//[TOC] [\tableofcontents]
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[1] PictureViewable: Class Definitions
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Dezember 2004 Christian Bohnebuck, Uwe Hartmann, Marion Langen and Holger
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M[ue]nx during Prof. G[ue]ting's practical course
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'Extensible Database Systems' at Fernuniversit[ae]t Hagen.
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[TOC]
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1 Introduction
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See the documentation of ~PictureAlgebra.h~ for a general introduction to
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the Picture algebra.
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This module is part of a SECONDO viewer ~PictureViewer~ which shows ~picture~ objects and their ~histograms~.
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2 Includes and other preparations
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*/
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package viewer.pictureviewer;
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import sj.lang.*;
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import javax.swing.*;
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import javax.swing.table.*;
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import java.awt.*;
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import gui.*;
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import java.lang.*;
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/*
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3 Class DisplayPicture
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Superclass for all PictureViewables
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Displays one more graph, histogram, picture, ...
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means add one histogram.
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Pictures and Histograms are headerless
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for Example: Histogram: ( check consistens )
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if (LE.listLength() == 3){
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int colorchannel = LE.first().intValue();
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double maxvalue = (LE.second().realValue());
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if (LE.third().listLength()==256 )
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...
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}
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*/
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abstract public class PictureViewable
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extends JPanel
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{
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/*
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3.1 Function ~set~
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The function ~set~ is the main function of this class. It is responsible for
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the interpretation of the specified parameter ~LE~ which contains all
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data of the object. Then it stores the object for painting.
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*/
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abstract public void set( ListExpr LE );
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/*
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3.2 Function ~removeall~
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This function removes all visible objects.
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Nothing will be painted anymore.
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*/
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abstract public void removeall();
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/*
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3.3 Function ~paint~
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The function ~paint~ displays the objects.
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*/
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abstract public void paint ( Graphics g );
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/*
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3.4 Function ~init~
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The method ~init()~ initializes all, which is not initialized by the Constructor.
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*/
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abstract public void init();
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}
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