Basic Calendar
Java Source:
/*
Copyright (C) 2000 Erik Bonder
e-mail: ropez@mail.lv
Project: calendar
Version: 0.1
Filename: calendar.java
Date&Time: 22.09.2000 19:33
*/
/*
TODO
23.09.2000 22:13 Configurable date format (url)
*/
/*
Parameters
* color1, ... Colors
* url Url base
* date Current date, format: MM.YYYY
* datelist Existing dates: 18.08.2000-24.08.2000&10.09.2000&20.09.2000
* dateformat Format of the date: DD.MM.YYYY
* monthnames Names of monthes: Ubauba&AAAA&...
* daysofweek Names of day of week (seven chars): PDFGHJJ
*/
/*
** Includes
*/
import java.awt.*;
import java.applet.*;
import java.io.*;
import java.util.*;
import java.net.*;
/*
** Classes
*/
/*---------------------------*/
public class calendar extends Applet
{
/*
** Variables
*/
Color[] colormap = new Color[7];
Cursor[] cursors = new Cursor[2];
Rectangle[] controls = new Rectangle[5];
int year, month;
int firstday, daycnt = 30;
String[] monthnames = new String[12];
String[] daysofweek = new String[7];
boolean[] urlexist = new boolean[31];
String urlbase;
int datelistsize;
int[] datelist1, datelist2;
Image gimg;
Graphics g;
Font fnt = new Font( "Courier New", Font.PLAIN, 12 );
FontMetrics fntm = getFontMetrics( fnt );
/*
** Functions
*/
/*---------------------------*/
String genurl( int day )
{
return urlbase + ( day < 10 ? "0" : "" ) + String.valueOf( day ) + "." +
( month < 9 ? "0" : "" ) + String.valueOf( month + 1 ) + "." +
String.valueOf( year );
}
/*---------------------------*/
Color str2col( String hex )
{
return new Color( ( Integer.decode( "0x" + hex.substring( 0, 2 ) ) ).intValue(),
( Integer.decode( "0x" + hex.substring( 2, 4 ) ) ).intValue(),
( Integer.decode( "0x" + hex.substring( 4, 6 ) ) ).intValue() );
}
/*---------------------------*/
int daysellapsed( int d, int m, int y )
{
int a, b;
int[] c = { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334 };
a = y - 1;
b = a * 365 + a / 4 - a / 100 + a / 400 + c[m];
if ( ( ( y % 4 ) == 0 && ( ( y % 100 ) != 0 || ( y % 400 ) == 0 ) ) && m > 1 ) b++;
return b + d;
}
/*---------------------------*/
void parsedatelist( String str )
{
int i, a, b, i1, i2;
for ( b = a = 0; ( b = str.indexOf( '&', b + 1 ) + 1 ) > 0; a++ );
a++;
datelistsize = a;
datelist1 = new int[a];
datelist2 = new int[a];
for ( i1 = i = 0; i < a; i++ )
{
datelist1[i] = daysellapsed( Integer.parseInt( str.substring( i1, i1 + 2 ) ),
Integer.parseInt( str.substring( i1 + 3, i1 + 5 ) ) - 1,
Integer.parseInt( str.substring( i1 + 6, i1 + 10 ) ) );
b = i1;
i1 = str.indexOf( '-', b ) + 1;
i2 = str.indexOf( '&', b ) + 1;
if ( i1 == 0 ) i1 = 99999;
if ( i2 == 0 ) i2 = 99999;
if ( i1 < i2 )
{
datelist2[i] = daysellapsed( Integer.parseInt( str.substring( i1, i1 + 2 ) ),
Integer.parseInt( str.substring( i1 + 3, i1 + 5 ) ) - 1,
Integer.parseInt( str.substring( i1 + 6, i1 + 10 ) ) );
} else datelist2[i] = datelist1[i];
i1 = i2;
}
}
/*---------------------------*/
void updatemonth()
{
int i, a, b;
int c[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
c[1] = ( ( year % 4 ) == 0 && ( ( year % 100 ) != 0 || ( year % 400 ) == 0 ) ) ? 29 : 28;
firstday = ( daysellapsed( 1, month, year ) + 6 ) % 7;
daycnt = c[month];
b = daysellapsed( 1, month, year );
for ( i = 0; i < daycnt; i++, b++ )
{
for ( a = 0; a < datelistsize; a++ ) if ( b >= datelist1[a] && b <= datelist2[a] ) break;
urlexist[i] = ( ( a == datelistsize ) ? false : true );
}
}
/*---------------------------*/
public void init()
{
int i, a, b;
String str;
str = getParameter( "monthnames" );
for ( a = i = 0; i < 11; i++ )
{
b = str.indexOf( '&', a );
monthnames[i] = str.substring( a, b );
a = b + 1;
}
monthnames[11] = str.substring( a );
str = getParameter( "daysofweek" );
for ( i = 0; i < 7; i++ ) daysofweek[i] = String.valueOf( str.charAt( i ) );
str = getParameter( "date" );
if ( str == null )
{
Date d = new Date();
month = d.getMonth();
year = d.getYear() + 1900;
} else
{
month = Integer.parseInt( str.substring( 0, 2 ) ) - 1;
year = Integer.parseInt( str.substring( 3, 7 ) );
}
urlbase = getParameter( "url" );
parsedatelist( getParameter( "datelist" ) );
updatemonth();
colormap[0] = str2col( getParameter( "color0" ) );
colormap[1] = str2col( getParameter( "color1" ) );
colormap[2] = str2col( getParameter( "color2" ) );
colormap[3] = str2col( getParameter( "color3" ) );
colormap[4] = str2col( getParameter( "color4" ) );
colormap[5] = str2col( getParameter( "color5" ) );
colormap[6] = str2col( getParameter( "color6" ) );
cursors[0] = new Cursor( Frame.DEFAULT_CURSOR );
cursors[1] = new Cursor( Frame.HAND_CURSOR );
controls[0] = new Rectangle( 2, 0, fntm.stringWidth( "<<" ), 16 );
controls[1] = new Rectangle( 108 - fntm.stringWidth( ">>" ), 0, fntm.stringWidth( ">>" ), 16 );
controls[2] = new Rectangle( 116, 0, fntm.stringWidth( "<<" ), 16 );
controls[3] = new Rectangle( 180 - fntm.stringWidth( ">>" ), 0, fntm.stringWidth( ">>" ), 16 );
controls[4] = new Rectangle( 0, 32, 182, 96 );
gimg = createImage( 182, 128 );
g = gimg.getGraphics();
}
/*---------------------------*/
public boolean mouseDown( Event evt, int x, int y )
{
int i, a;
for ( i = 0; i < 5; i++ ) if ( controls[i].inside( x, y ) ) break;
switch ( i)
{
case 0:
month = ( month + 11 ) % 12;
break;
case 1:
month = ( month + 1 ) % 12;
break;
case 2:
year--;
break;
case 3:
year++;
break;
case 4:
a = ( ( y - 32 ) / 16 ) * 7 + x / 26 - firstday;
if ( a >= 0 && a < daycnt )
if ( urlexist[a] )
{
URL url;
try { url = new URL( getDocumentBase(), genurl( a + 1 ) ); }
catch( MalformedURLException _ex ) { break; }
getAppletContext().showDocument( url );
}
break;
default:
return true;
}
if ( i < 4 ) updatemonth();
repaint();
return true;
}
/*---------------------------*/
public boolean mouseMove( Event evt, int x, int y )
{
int i, a = 0;
boolean c = false;
for ( i = 0; i < 5; i++ ) if ( controls[i].inside( x, y ) ) break;
if ( i < 4 ) c = true; else
if ( i == 4 )
{
a = ( ( y - 32 ) / 16 ) * 7 + x / 26 - firstday;
if ( a >= 0 && a < daycnt ) c = urlexist[a];
}
if ( c )
{
if ( i == 4 ) showStatus( genurl( a + 1 ) );
setCursor( cursors[1] );
} else
{
showStatus( "" );
setCursor( cursors[0] );
}
return true;
}
/*---------------------------*/
public void update( Graphics gc )
{
paint( gc );
}
/*---------------------------*/
public void paint( Graphics gc )
{
int i, x, y;
String str;
g.setFont( fnt );
g.setColor( colormap[3] );
g.fillRect( 0, 0, 182, 16 );
for ( y = 0; y < 7; y++ )
for ( x = 0; x < 7; x++)
{
g.setColor( colormap[( ( y & 1 ) << 1 ) + ( x & 1 ) + 1] );
g.fillRect( x * 26, y * 16 + 16, 26, 16 );
}
g.setColor( colormap[0] );
g.drawString( "<<", controls[0].x, 13 );
g.drawString( ">>", controls[1].x, 13 );
g.drawString( "<<", controls[2].x, 13 );
g.drawString( ">>", controls[3].x, 13 );
str = monthnames[month];
g.drawString( str, 55 - fntm.stringWidth( str ) / 2, 13 );
str = String.valueOf( year );
g.drawString( str, 150 - fntm.stringWidth( str ) / 2, 13 );
for ( i = 0; i < 7; i++ ) g.drawString( daysofweek[i], i * 26 + 13 - fntm.stringWidth( daysofweek[i] ) / 2, 29 );
for ( i = 0; i < daycnt; i++ )
{
str = String.valueOf( i + 1 );
g.setColor( colormap[urlexist[i] ? 6 : 5] );
g.drawString( str, ( ( i + firstday ) % 7 ) * 26 + 20 - fntm.stringWidth( str ), ( ( i + firstday ) / 7 ) * 16 + 45 );
}
gc.drawImage( gimg, 0, 0, this );
}
}
/*---------------------------*/
Back to Basic Calendar
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