CalLite: Flag days in Finland

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Flag days in Finland.png

TCalendarLite is a lightweight calendar component. This demo shows how CalLite can be used to display flag days in Finland in the calendar as small icons


unit uFinlandFlagDays

unit uFinlandFlagDays;
 
{$mode objfpc}{$H+}
 
interface
 
uses
  Classes, SysUtils, CalendarLite, DateUtils;
 
procedure CalendarGetFlagDaysInFinland( AMonth, AYear: Integer;
  var Holidays: THolidays);
 
implementation
const
  SATURDAY = 6;
  SUNDAY   = 7;
  FEBRUARY =  2;
  MARCH    =  3;
  APRIL    =  4;
  MAY      =  5;
  JUNE     =  6;
  JULY     =  7;
  OCTOBER  = 10;
  NOVEMBER = 11;
  DECEMBER = 12;
 
function MothersDay(year:integer):integer;
var
  day  : integer;
  a_date : TDateTime;
begin
  day := 7;
  repeat
    inc(day);
    a_date := EncodeDate(year, MAY, day);
  until  DayOfTheWeek( a_date ) = SUNDAY;
  result := day;
end;
 
function FathersDay(year:integer):integer;
var
  day  : integer;
  a_date : TDateTime;
begin
  day := 7;
  repeat
    inc(day);
    a_date := EncodeDate(year, NOVEMBER, day);
  until  DayOfTheWeek( a_date ) = SUNDAY;
  result := day;
end;
 
function MidsummerDay(year:integer):integer;
var
  day  : integer;
  a_date : TDateTime;
begin
  day := 20-1;
  repeat
    inc(day);
    a_date := EncodeDate(year, JUNE, day);
  until  DayOfTheWeek( a_date ) = SATURDAY;
  result := day;
end;
 
function MemorialDayWarDead(year:integer):integer; //memorial day for the war dead
var
  day  : integer;
  a_date : TDateTime;
begin
  day := MothersDay(year);
  repeat
    inc(day);
    a_date := EncodeDate(year, MAY, day);
  until  DayOfTheWeek( a_date ) = SUNDAY;
  result := day;
end;
 
procedure CalendarGetFlagDaysInFinland( AMonth, AYear: Integer;
  var Holidays: THolidays);
begin
  ClearHolidays(Holidays);
  begin
    case AMonth of
      FEBRUARY: begin
            AddHoliday( 5, Holidays);//Birthday of the national poet JL Runeberg
            AddHoliday(28, Holidays);//Day of Kalevala
          end;
      MARCH: AddHoliday(19, Holidays);// Birthday of novelist and playwright
                                      // Minna Canth, Day of Equality
      APRIL: begin
            AddHoliday( 9, Holidays);// The day Mikael Agricola, also celebrated
                                     // as the Day of the Finnish language
            AddHoliday(27, Holidays);// National War Veterans' Day
         end;
      MAY: begin
            AddHoliday( 1, Holidays);// 1 May, Vappu, the Day of Finnish Labour
            AddHoliday( 9, Holidays);// Europe Day
            AddHoliday(12, Holidays);// Day of the Finnish Identity, birthday
                                     // of the statesman J V Snellman
            AddHoliday(MothersDay(AYear), Holidays); // Mother's Day
            AddHoliday(MemorialDayWarDead(AYear), Holidays);//Memorial day for
                                                            //the war dead
          end;
      JUNE: begin
            AddHoliday( 4, Holidays);// Flag Day of the Finnish Defence Forces
            AddHoliday(MidsummerDay(AYear), Holidays);// Midsummer Day
          end;
      JULY: AddHoliday( 6, Holidays);// Birthday of the poet Eino Leino
      OCTOBER: begin
            AddHoliday(10, Holidays);// Birthday of the National writer
                                     // Aleksis Kivi, also celebrated as the
                                     // Day of Finnish literature
            AddHoliday(24, Holidays);// Day of the United Nations
          end;
      NOVEMBER: begin
            AddHoliday( 6, Holidays);// Finnish Swedish Heritage Day
            AddHoliday(FathersDay(AYear), Holidays);//Father's Day
          end;
      DECEMBER: begin
            AddHoliday( 6, Holidays);// Independence Day
            AddHoliday( 8, Holidays);// Birthday of the composer Jean Sibelius
                                     // also celebrated as the Day of Finnish
                                     // music
          end;
    end;
  end;
end;
 
end.

unit unitFinlandFlagDays

unit unitFinlandFlagDays;
 
{$mode objfpc}{$H+}
 
interface
 
uses
  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, CalendarLite,
  Types,  lcltype, uFinlandFlagDays;
 
type
 
  { TForm1 }
 
  TForm1 = class(TForm)
    CalendarLite1: TCalendarLite;
    procedure CalendarLite1DrawCell(Sender: TObject; ACanvas: TCanvas; AYear,
      AMonth, ADay: Word; AState: TCalCellStates; var ARect: TRect;
      var AContinueDrawing: Boolean);
    procedure FormCreate(Sender: TObject);
  private
 
  public
 
  end;
 
var
  Form1: TForm1;
 
implementation
 
procedure FlagOfFinland(var Bitmap: TBitmap);
const
  FFH   = 11; // FinlandFlagHeight
  FFCH1 =  4; // FinlandFlagCrossH1
  FFCH2 =  7; // FinlandFlagCrossH2
  FFW   = 18; // FinlandFlagWidth
  FFCW1 =  5; // FinlandFlagCrossW1
  FFCW2 =  8; // FinlandFlagCrossW2
begin
  Bitmap.Canvas.Pen.Color := clWhite;
  Bitmap.Canvas.Brush.Style:=bsSolid;
  Bitmap.Canvas.Brush.Color:= clWhite;
  Bitmap.Canvas.FillRect(0, 0, Bitmap.Width, Bitmap.Height);
  Bitmap.Canvas.Brush.Color:=RGBToColor(0, 47, 108) ;
  Bitmap.Canvas.FillRect(0,MulDiv(Bitmap.Height,FFCH1,FFH),
    Bitmap.Width,MulDiv(Bitmap.Height,FFCH2,FFH));
  Bitmap.Canvas.FillRect(MulDiv(Bitmap.Width,FFCW1,FFW),
    0,MulDiv(Bitmap.Width,FFCW2,FFW),Bitmap.Height);
end;
 
 
{$R *.lfm}
 
{ TForm1 }
 
procedure TForm1.CalendarLite1DrawCell(Sender: TObject; ACanvas: TCanvas;
  AYear, AMonth, ADay: Word; AState: TCalCellStates; var ARect: TRect;
  var AContinueDrawing: Boolean);
 
var
  Bitmap: TBitmap;
  Flagdays: THolidays;
begin
  CalendarGetFlagDaysInFinland(AMonth,AYear,Flagdays);
  if  IsHoliday(aDay,Flagdays) and not (csOtherMonth in AState) then begin
    Bitmap := TBitmap.Create;
    try
      // Initializes the Bitmap Size
      Bitmap.Height := 11;
      Bitmap.Width := 18;
      FlagOfFinland(Bitmap);
      ACanvas.Draw(ARect.Left, (ARect.Top + ARect.Bottom - Bitmap.Height) div 2,
        Bitmap);
      inc(ARect.Left, Bitmap.Width + 2);
      // Not changing AContinueDrawing from its default value (true) means
      // that the day text is drawn by the built-in procedure into
      // the reduced rectangle
    finally
      Bitmap.Free;
    end;
  end;
end;
 
procedure TForm1.FormCreate(Sender: TObject);
begin
  CalendarLite1.Languages := lgFinnish;
  CalendarLite1.StartingDayOfWeek := dowMonday;
  CalendarLite1.Date:=now;
end;
 
end.

unitFinlandFlagDays.lfm

object Form1: TForm1
  Left = 543
  Height = 278
  Top = 159
  Width = 426
  Caption = 'Flag days in Finland'
  ClientHeight = 278
  ClientWidth = 426
  OnCreate = FormCreate
  LCLVersion = '1.8.0.5'
  object CalendarLite1: TCalendarLite
    Left = 72
    Height = 200
    Top = 56
    Width = 274
    Constraints.MinHeight = 120
    Constraints.MinWidth = 120
    ParentColor = False
    TabOrder = 0
    TabStop = True
    Colors.TodayFrameColor = clGray
    Date = 42993
    DayNames = 'Su,Ma,Ti,ke,To,Pe,La'
    DisplayTexts = '"Tänään on",dd.mm.yyyy,Lomapäivät,"Lomapäiviä ei ole asetettu"'
    MonthNames = 'Tammikuu,Helmikuu,Maaliskuu,Huhtikuu,Toukokuu,Kesäkuu,Heinäkuu,Elokuu,Syyskuu,Lokakuu,Marraskuu,Joulukuu'
    MultiSelect = False
    StartingDayOfWeek = dowMonday
    WeekendDays = [dowSunday, dowSaturday]
    Languages = lgFinnish
    OnDrawCell = CalendarLite1DrawCell
  end
end

program flagdays_project

program flagdays_project;
 
{$mode objfpc}{$H+}
 
uses
  {$IFDEF UNIX}{$IFDEF UseCThreads}
  cthreads,
  {$ENDIF}{$ENDIF}
  Interfaces, // this includes the LCL widgetset
  Forms, unitFinlandFlagDays, uFinlandFlagDays
  { you can add units after this };
 
{$R *.res}
 
begin
  RequireDerivedFormResource:=True;
  Application.Initialize;
  Application.CreateForm(TForm1, Form1);
  Application.Run;
end.