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| //---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
//resource contenant les images pour le bouton
#pragma resource "bt.res"
#include "MyButton.h"
#pragma package(smart_init)
//---------------------------------------------------------------------------
// ValidCtrCheck est utilisé pour vérifier que les composants créés n'ont
// aucune fonction virtuelle pure.
//
static inline void ValidCtrCheck(TMyButton *)
{
new TMyButton(NULL);
}
//---------------------------------------------------------------------------
__fastcall TMyButton::TMyButton(TComponent* Owner)
: TCustomControl(Owner)
{
Width = 81;
Height = 33;
FEtat = false;
//charge les images du bouton depuis la resource
BtOn = new Graphics::TBitmap();
BtOn->LoadFromResourceName((int)HInstance,"BT_ON");
BtOff = new Graphics::TBitmap();
BtOff->LoadFromResourceName((int)HInstance, "BT_OFF");
BtOn->Transparent= true;
BtOff->Transparent=true;
Caption = "MyButton";
}
//---------------------------------------------------------------------------
__fastcall TMyButton::~TMyButton()
{
delete BtOn;
delete BtOff;
}
//---------------------------------------------------------------------------
void __fastcall TMyButton::Paint()
{
if (FEtat == true)
Canvas->Draw(0,0,BtOn);
else
Canvas->Draw(0,0,BtOff);
// écrit le texte du bouton
TRect RText;
RText = ClientRect;
RText.top = 6;
HDC hdc = GetDC(Handle);
SetBkMode(hdc, TRANSPARENT);
HPEN pen = CreatePen(PS_DASH,0,RGB(0,0,0));
SelectObject(hdc, pen);
DrawText(hdc, FCaption.c_str(), FCaption.Length(), &RText, DT_VCENTER|DT_CENTER);
}
//---------------------------------------------------------------------------
void __fastcall TMyButton::SetEtat(bool AEtat)
{
if(FEtat!=AEtat)
{
FEtat = AEtat;
if(OnClickChange!=NULL) OnClickChange(this);
Invalidate();
}
}
//---------------------------------------------------------------------------
void __fastcall TMyButton::SetCaption(AnsiString ACaption)
{
if(FCaption != ACaption)
FCaption = ACaption ;
Invalidate();
}
//---------------------------------------------------------------------------
void __fastcall TMyButton::MouseDown(TMouseButton Button, Classes::TShiftState Shift, int X, int Y)
{
Etat = true;
}
//---------------------------------------------------------------------------
void __fastcall TMyButton::MouseUp(TMouseButton Button, Classes::TShiftState Shift, int X, int Y)
{
Etat = false;
}
//---------------------------------------------------------------------------
namespace Mybutton
{
void __fastcall PACKAGE Register()
{
TComponentClass classes[1] = {__classid(TMyButton)};
RegisterComponents("Perso", classes, 0);
}
} |
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