bscalendar.pas
上传用户:hylc_2004
上传日期:2014-01-23
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文件大小:12k
- {*******************************************************************}
- { }
- { Almediadev Visual Component Library }
- { BusinessSkinForm }
- { Version 1.98 }
- { }
- { Copyright (c) 2000-2003 Almediadev }
- { ALL RIGHTS RESERVED }
- { }
- { Home: http://www.almdev.com }
- { Support: support@almdev.com }
- { }
- {*******************************************************************}
- unit bsCalendar;
- interface
- uses Windows, SysUtils, Messages, Classes, Graphics, Controls, Forms,
- Buttons, bsSkinCtrls, bsSkinData, ExtCtrls;
- type
- TbsDaysOfWeek = (Sun, Mon, Tue, Wed, Thu, Fri, Sat);
- TbsSkinMonthCalendar = class(TbsSkinPanel)
- protected
- FTodayDefault: Boolean;
- BevelTop, CellW, CellH: Integer;
- FBtns: array[0..3] of TbsSkinSpeedButton;
- MonthYearLabel: TbsSkinStdLabel;
- FDate: TDate;
- FFirstDayOfWeek: TbsDaysOfWeek;
- CalFontColor: TColor;
- CalActiveFontColor: TColor;
- FOnNumberClick: TNotifyEvent;
- procedure Loaded; override;
- procedure SetTodayDefault(Value: Boolean);
- procedure OffsetMonth(AOffset: Integer);
- procedure OffsetYear(AOffset: Integer);
- procedure SetFirstDayOfWeek(Value: TbsDaysOfWeek);
- procedure UpdateCalendar;
- procedure ArangeControls;
- procedure WMSIZE(var Message: TWMSIZE); message WM_SIZE;
- procedure SetSkinData(Value: TbsSkinData); override;
- procedure CreateControlDefaultImage(B: TBitMap); override;
- procedure CreateControlSkinImage(B: TBitMap); override;
- procedure SetDate(Value: TDate);
- procedure DrawCalendar(Cnvs: TCanvas);
- function DaysThisMonth: Integer;
- function GetMonthOffset: Integer;
- procedure MouseUp(Button: TMouseButton; Shift: TShiftState;
- X, Y: Integer); override;
- function DayNumFromPoint(X, Y: Integer): Word;
- procedure NextMButtonClick(Sender: TObject);
- procedure PriorMButtonClick(Sender: TObject);
- procedure NextYButtonClick(Sender: TObject);
- procedure PriorYButtonClick(Sender: TObject);
- procedure SetCaptionMode(Value: Boolean); override;
- procedure SetDefaultCaptionHeight(Value: Integer); override;
- public
- constructor Create(AOwner: TComponent); override;
- procedure ChangeSkinData; override;
- published
- property Date: TDate read FDate write SetDate;
- property TodayDefault: Boolean read FTodayDefault write SetTodayDefault;
- property FirstDayOfWeek: TbsDaysOfWeek read FFirstDayOfWeek write SetFirstDayOfWeek;
- property OnNumberClick: TNotifyEvent
- read FOnNumberClick write FOnNumberClick;
- end;
- implementation
- Uses bsUtils;
- {$R *.res}
- const
- BSize = 20;
- RepeatInt = 250;
- constructor TbsSkinMonthCalendar.Create;
- begin
- inherited;
- BorderStyle := bvFrame;
- FBtns[0] := TbsSkinSpeedButton.Create(Self);
- with FBtns[0] do
- begin
- RepeatMode := True;
- RepeatInterval := RepeatInt;
- SkinDataName := 'resizebutton';
- Width := BSize;
- Height := BSize;
- NumGlyphs := 1;
- Glyph.Handle := LoadBitmap(hInstance, 'BS_PRIORMONTH');
- OnClick := PriorMButtonClick;
- Parent := Self;
- end;
- FBtns[1] := TbsSkinSpeedButton.Create(Self);
- with FBtns[1] do
- begin
- RepeatMode := True;
- RepeatInterval := RepeatInt;
- SkinDataName := 'resizebutton';
- Width := BSize;
- Height := BSize;
- NumGlyphs := 1;
- Glyph.Handle := LoadBitmap(hInstance, 'BS_NEXTMONTH');
- OnClick := NextMButtonClick;
- Parent := Self;
- end;
- FBtns[2] := TbsSkinSpeedButton.Create(Self);
- with FBtns[2] do
- begin
- RepeatMode := True;
- RepeatInterval := RepeatInt - 150;
- SkinDataName := 'resizebutton';
- Width := BSize;
- Height := BSize;
- NumGlyphs := 1;
- Glyph.Handle := LoadBitmap(hInstance, 'BS_PRIORYEAR');
- OnClick := PriorYButtonClick;
- Parent := Self;
- end;
- FBtns[3] := TbsSkinSpeedButton.Create(Self);
- with FBtns[3] do
- begin
- RepeatMode := True;
- RepeatInterval := RepeatInt - 150;
- SkinDataName := 'resizebutton';
- Width := BSize;
- Height := BSize;
- NumGlyphs := 1;
- Glyph.Handle := LoadBitmap(hInstance, 'BS_NEXTYEAR');
- OnClick := NextYButtonClick;
- Parent := Self;
- end;
- Width := 200;
- Height := 150;
- Date := Now;
- FTodayDefault := False;
- end;
- procedure TbsSkinMonthCalendar.SetTodayDefault;
- begin
- FTodayDefault := Value;
- if FTodayDefault then Date := Now;
- end;
- procedure TbsSkinMonthCalendar.SetCaptionMode;
- begin
- inherited;
- ArangeControls;
- UpdateCalendar;
- end;
- procedure TbsSkinMonthCalendar.SetDefaultCaptionHeight;
- begin
- inherited;
- ArangeControls;
- UpdateCalendar;
- end;
- procedure TbsSkinMonthCalendar.ChangeSkinData;
- var
- I: Integer;
- begin
- I := FSD.GetControlIndex('stdlabel');
- if I <> -1
- then
- if TbsDataSkinControl(FSD.CtrlList.Items[I]) is TbsDataSkinStdLabelControl
- then
- with TbsDataSkinStdLabelControl(FSD.CtrlList.Items[I]) do
- begin
- CalFontColor := FontColor;
- CalActiveFontColor := ActiveFontColor;
- end
- else
- begin
- CalFontColor := Font.Color;
- CalActiveFontColor := Font.Color;
- end;
- inherited;
- ArangeControls;
- end;
- procedure TbsSkinMonthCalendar.NextMButtonClick(Sender: TObject);
- begin
- OffsetMonth(1);
- Click;
- end;
- procedure TbsSkinMonthCalendar.PriorMButtonClick(Sender: TObject);
- begin
- OffsetMonth(-1);
- Click;
- end;
- procedure TbsSkinMonthCalendar.NextYButtonClick(Sender: TObject);
- begin
- OffsetYear(1);
- Click;
- end;
- procedure TbsSkinMonthCalendar.PriorYButtonClick(Sender: TObject);
- begin
- OffsetYear(-1);
- Click;
- end;
- procedure TbsSkinMonthCalendar.OffsetMonth(AOffset: Integer);
- var
- AYear, AMonth, ADay: Word;
- TempDate: TDate;
- begin
- DecodeDate(FDate, AYear, AMonth, ADay);
- AMonth := AMonth + AOffset;
- if AMonth > 12 then AMonth := 1 else
- if AMonth <= 0 then AMonth := 12;
- if ADay > DaysPerMonth(AYear, AMonth)
- then ADay := DaysPerMonth(AYear, AMonth);
- TempDate := EncodeDate(AYear, AMonth, ADay);
- Date := TempDate;
- end;
- procedure TbsSkinMonthCalendar.OffsetYear(AOffset: Integer);
- var
- AYear, AMonth, ADay: Word;
- TempDate: TDate;
- begin
- DecodeDate(FDate, AYear, AMonth, ADay);
- AYear := AYear + AOffset;
- if AYear <= 1760 then Exit else
- if AYear > 9999 then Exit;
- TempDate := EncodeDate(AYear, AMonth, ADay);
- Date := TempDate;
- end;
- procedure TbsSkinMonthCalendar.SetFirstDayOfWeek(Value: TbsDaysOfWeek);
- begin
- FFirstDayOfWeek := Value;
- UpdateCalendar;
- end;
- procedure TbsSkinMonthCalendar.SetSkinData;
- var
- i: Integer;
- begin
- inherited;
- for i := 0 to 3 do
- if FBtns[i] <> nil then FBtns[i].SkinData := Value;
- end;
- procedure TbsSkinMonthCalendar.ArangeControls;
- var
- R: TRect;
- begin
- R := Rect(0, 0, Width, Height);
- AdjustClientRect(R);
- if FBtns[0] = nil then Exit;
- with FBtns[2] do SetBounds(R.Left + 1, R.Top + 1, Width, Height);
- with FBtns[0] do SetBounds(FBtns[2].Left + BSize + 1, R.Top + 1, Width, Height);
- with FBtns[3] do SetBounds(R.Right - BSize - 1, R.Top + 1, Width, Height);
- with FBtns[1] do SetBounds(FBtns[3].Left - BSize - 1 , R.Top + 1, Width, Height);
- end;
- procedure TbsSkinMonthCalendar.WMSIZE;
- begin
- inherited;
- ArangeControls;
- end;
- procedure TbsSkinMonthCalendar.CreateControlDefaultImage(B: TBitMap);
- begin
- inherited;
- DrawCalendar(B.Canvas);
- end;
- procedure TbsSkinMonthCalendar.CreateControlSkinImage(B: TBitMap);
- begin
- inherited;
- DrawCalendar(B.Canvas);
- end;
- procedure TbsSkinMonthCalendar.SetDate(Value: TDate);
- begin
- FDate := Value;
- UpdateCalendar;
- RePaint;
- end;
- procedure TbsSkinMonthCalendar.UpdateCalendar;
- begin
- RePaint;
- end;
- function TbsSkinMonthCalendar.GetMonthOffset: Integer;
- var
- AYear, AMonth, ADay: Word;
- FirstDate: TDate;
- begin
- DecodeDate(FDate, AYear, AMonth, ADay);
- FirstDate := EncodeDate(AYear, AMonth, 1);
- Result := 2 - ((DayOfWeek(FirstDate) - Ord(FirstDayOfWeek) + 7) mod 7);
- if Result = 2 then Result := -5;
- end;
- procedure TbsSkinMonthCalendar.DrawCalendar(Cnvs: TCanvas);
- var
- R: TRect;
- I, J: Integer;
- FMonthOffset, X, Y, X2, Y2: Integer;
- S: String;
- ADay, DayNum: Word;
- begin
- R := Rect(0, 0, Width, Height);
- AdjustClientRect(R);
- with Cnvs do
- begin
- Font := Self.DefaultFont;
- Brush.Style := bsClear;
- // draw caption
- S := FormatDateTime('MMMM, YYYY', FDate);
- Y := R.Top + 2;
- X := (RectWidth(R) - BSize * 4 - 2) div 2 - TextWidth(S) div 2;
- X := X + FBtns[0].Left + BSize + 1;
- if FIndex <> -1
- then
- Font.Color := CalActiveFontColor;
- Font.Style := [fsBold];
- TextOut(X, Y, S);
- CellW := (RectWidth(R) - 2) div 7;
- // draw week days
- X := R.Left + 1;
- Y := R.Top + BSize + 10;
- for I := 0 to 6 do
- begin
- S := ShortDayNames[(Ord(FirstDayOfWeek) + I) mod 7 + 1];
- X2 := X + CellW div 2 - TextWidth(S) div 2;
- TextOut(X2, Y, S);
- X := X + CellW;
- end;
- // draw bevel
- BevelTop := Y + TextHeight('Wq') + 1;
- Pen.Color := Font.Color;
- MoveTo(R.Left + 1, BevelTop);
- LineTo(R.Right - 1, BevelTop);
- Font.Style := [];
- // draw month numbers
- CellH := (R.Bottom - BevelTop - 4) div 6;
- if FIndex <> -1
- then
- Font.Color := CalFontColor;
- FMonthOffset := GetMonthOffset;
- ADay := ExtractDay(FDate);
- Y := BevelTop + 3;
- for J := 0 to 6 do
- begin
- X := R.Left + 1;
- for I := 0 to 6 do
- begin
- DayNum := FMonthOffset + I + (J - 1) * 7;
- if (DayNum < 1) or (DayNum > DaysThisMonth) then S := ''
- else S := IntToStr(DayNum);
- X2 := X + CellW div 2 - TextWidth(S) div 2;
- Y2 := Y - CellH div 2 - TextHeight(S) div 2;
- if S <> '' then TextOut(X2, Y2, S);
- if DayNum = ADay
- then
- begin
- if FIndex <> -1
- then
- Pen.Color := CalActiveFontColor
- else
- Pen.Color := Font.Color;
- Rectangle(X, Y - CellH, X + CellW, Y);
- end;
- X := X + CellW;
- end;
- Y := Y + CellH;
- end;
- end;
- end;
- function TbsSkinMonthCalendar.DaysThisMonth: Integer;
- begin
- Result := DaysPerMonth(ExtractYear(FDate), ExtractMonth(FDate));
- end;
- function TbsSkinMonthCalendar.DayNumFromPoint;
- var
- R, R1: TRect;
- FMonthOffset, X1, Y1, I, J: Integer;
- begin
- Result := 0;
- R := Rect(0, 0, Width, Height);
- AdjustClientRect(R);
- if not PtInRect(R, Point(X, Y)) then Exit;
- FMonthOffset := GetMonthOffset;
- Y1 := BevelTop + 3;
- for J := 0 to 6 do
- begin
- X1 := R.Left + 1;
- for I := 0 to 6 do
- begin
- R1 := Rect(X1, Y1 - CellH, X1 + CellW, Y1);
- if PtInRect(R1, Point(X, Y))
- then
- begin
- Result := FMonthOffset + I + (J - 1) * 7;
- if (Result < 1) or (Result > DaysThisMonth) then Result := 0;
- Break;
- end;
- X1 := X1 + CellW;
- end;
- Y1 := Y1 + CellH;
- end;
- end;
- procedure TbsSkinMonthCalendar.MouseUp;
- var
- DayNum, AYear, AMonth, ADay: Word;
- TempDate: TDate;
- begin
- inherited;
- if Button <> mbLeft then Exit;
- DayNum := DayNumFromPoint(X, Y);
- if DayNum <> 0
- then
- begin
- DecodeDate(FDate, AYear, AMonth, ADay);
- ADay := DayNum;
- TempDate := EncodeDate(AYear, AMonth, ADay);
- Date := TempDate;
- if Assigned(FOnNumberClick) then FOnNumberClick(Self);
- end;
- end;
- procedure TbsSkinMonthCalendar.Loaded;
- begin
- inherited;
- if FTodayDefault then Date := Now;
- end;
- end.