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C++ Builder XE4 > TeeChart > フォント > グラフタイトル | 左軸ラベル | 下軸 (時間軸)ラベルのフォントサイズを大きくするコード

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動作環境
C++ Builder XE4

処理概要

  • TeeChartのフォントサイズを変更する
    • グラフタイトル
    • 左軸ラベル
    • 下軸ラベル

参考

実装

Unit1.h
//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include <System.Classes.hpp>
#include <Vcl.Controls.hpp>
#include <Vcl.StdCtrls.hpp>
#include <Vcl.Forms.hpp>
#include <Vcl.ExtCtrls.hpp>
#include <VCLTee.Chart.hpp>
#include <VCLTee.Series.hpp>
#include <VCLTee.TeEngine.hpp>
#include <VCLTee.TeeProcs.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published:    // IDE で管理されるコンポーネント
    TChart *Chart1;
    TFastLineSeries *Series1;
    TButton *Button1;
    void __fastcall Button1Click(TObject *Sender);
private:    // ユーザー宣言
public:     // ユーザー宣言
    __fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif
Unit1.cpp
//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop

#include <DateUtils.hpp>
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
    // ダミーデータ作成

    Chart1->Series[0]->XValues->DateTime = true;
    Chart1->BottomAxis->DateTimeFormat = L"nn:ss";

    TDateTime dt;

    dt = Now();

    double yval;
    for (int idx=0; idx < 10; idx++) {
        yval = (1+ idx) % 2;
        Series1->AddXY(dt, yval, "", clRed);
        dt = IncSecond(dt, 1);
    }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
    // グラフタイトル
    Chart1->Title->Font->Size += 2;

    // 左軸
    Chart1->Axes->Left->LabelsFont->Size += 2;

    // 下軸 (時間軸)
    Chart1->Axes->Bottom->LabelsFont->Size += 2;
}
//---------------------------------------------------------------------------

動作例

起動直後
2018-11-23_16h38_05.png

Button1を五回押下後
2018-11-23_16h38_10.png

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