C++ Builder XE4 > TStringGrid: 달력 표시(색상) > 월 변경 가능 | 클릭할 때 해당 날짜를 [DateTimePicker1]로 설정

C++ Builder XE4

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구현

//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
#include <Vcl.ComCtrls.hpp>
#include <Vcl.Grids.hpp>
#include <Vcl.Samples.Calendar.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:    // IDE で管理されるコンポーネント
    TButton *B_copy;
    TCalendar *Calendar1;
    TStringGrid *StringGrid1;
    TButton *B_forward;
    TButton *B_backward;
    TLabel *L_datetime;
    TDateTimePicker *DateTimePicker1;
    void __fastcall B_copyClick(TObject *Sender);
    void __fastcall StringGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect,
          TGridDrawState State);
    void __fastcall B_forwardClick(TObject *Sender);
    void __fastcall B_backwardClick(TObject *Sender);
    void __fastcall StringGrid1Click(TObject *Sender);

private:    // ユーザー宣言
    TDateTime m_calendarDate;
public:     // ユーザー宣言
    __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include <memory>
#include <DateUtils.hpp>
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
    m_calendarDate = Now();
}
//---------------------------------------------------------------------------
void __fastcall TForm1::StringGrid1DrawCell(TObject *Sender, int ACol, int ARow, TRect &Rect,
          TGridDrawState State)
{
    String str = StringGrid1->Cells[ACol][ARow];

    if (str.Length() == 0) {
        return;
    }

    // 奇数日だけ色を縫る
    int aday = StrToIntDef(str, 0);
    if (aday % 2 == 1) {
        // 背景を塗る
        StringGrid1->Canvas->Brush->Color = clOlive;
        StringGrid1->Canvas->FillRect(Rect);
        // 元の背景色で文字を描画
        StringGrid1->Canvas->Brush->Color = clWhite;
        String str = StringGrid1->Cells[ACol][ARow];
        DrawText(StringGrid1->Canvas->Handle, str.c_str(), str.Length(), &Rect, Position);
    }
}
//---------------------------------------------------------------------------

void __fastcall TForm1::B_copyClick(TObject *Sender)
{
    // 1. ラベルの表記
    L_datetime->Caption = m_calendarDate.FormatString(L"yyyy/mm");

    // 2. カレンダー文字列のコピー
    //
    StringGrid1->RowCount = 7;
    StringGrid1->ColCount = 7;
    StringGrid1->DefaultColWidth = Calendar1->Width / 7;
    StringGrid1->FixedRows = 1;
    StringGrid1->FixedCols = 0;
    //
    for(int ri=0; ri<7; ri++) {
        for(int ci=0; ci<7; ci++) {
            StringGrid1->Cells[ci][ri] = Calendar1->CellText[ci][ri];
        }
    }
}

void __fastcall TForm1::B_forwardClick(TObject *Sender)
{
    m_calendarDate = IncMonth(m_calendarDate, 1);
    Calendar1->CalendarDate = m_calendarDate;

    B_copyClick(Sender);
}

void __fastcall TForm1::B_backwardClick(TObject *Sender)
{
    m_calendarDate = IncMonth(m_calendarDate, -1);
    Calendar1->CalendarDate = m_calendarDate;

    B_copyClick(Sender);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::StringGrid1Click(TObject *Sender)
{
    // クリックした位置の日付を[DateTimePicker1]に設定する

    int arow = StringGrid1->Row;
    int acol = StringGrid1->Col;
    String str = StringGrid1->Cells[acol][arow];
    if (str.Length() == 0) {
        return;
    }
    TDate adt = VarToDateTime(L_datetime->Caption + "/" + str);
    DateTimePicker1->Date = adt;
}
//---------------------------------------------------------------------------

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