Tricks of the Windows Gam…ming Gurus (2nd Edition)/Disc2.iso/msdn_vcb/samples/vc98/mfc/general/ctrltest/bbutton.cpp

C/C++ Source or Header | 1998-03-27 | 5.5 KB | 221 lines

// bbutton.cpp : bitmap button test
//
// This is a part of the Microsoft Foundation Classes C++ library.
// Copyright (C) 1992-1998 Microsoft Corporation
// All rights reserved.
//
// This source code is only intended as a supplement to the
// Microsoft Foundation Classes Reference and related
// electronic documentation provided with the library.
// See these sources for detailed information regarding the
// Microsoft Foundation Classes product.

#include "stdafx.h"
#include "ctrltest.h"

/////////////////////////////////////////////////////////////////////////////
// BitmapButton Test dialog #1

// In this example we pass the bitmap resource names to LoadBitmaps
//  OnInitDialog is used to Subclass the buttons so the dialog
//  controls get attached to the MFC WndProc for C++ message map dispatch.

class CBMTest1Dlg : public CDialog
{
protected:
    CBitmapButton button1, button2;
public:
    //{{AFX_DATA(CBMTest1Dlg)
        enum { IDD = IDM_TEST_BITMAP_BUTTON1 };
    //}}AFX_DATA
    CBMTest1Dlg();

    BOOL OnInitDialog();
    //{{AFX_MSG(CBMTest1Dlg)
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()
};

BEGIN_MESSAGE_MAP(CBMTest1Dlg, CDialog)
    //{{AFX_MSG_MAP(CBMTest1Dlg)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()


CBMTest1Dlg::CBMTest1Dlg()
    : CDialog(CBMTest1Dlg::IDD)
{
    // NOTE: The obsolete MFC V1 CBitmapButton constructor with 3 arguments is
    //  replaced by a call to LoadBitmaps.
    if (!button1.LoadBitmaps(_T("Image1Up"), _T("Image1Down"), _T("Image1Focus")) ||
        !button2.LoadBitmaps(_T("Image2Up"), _T("Image2Down"), _T("Image2Focus")))
    {
        TRACE0("Failed to load bitmaps for buttons\n");
        AfxThrowResourceException();
    }
}

BOOL CBMTest1Dlg::OnInitDialog()
{
    // each dialog control has special bitmaps
    VERIFY(button1.SubclassDlgItem(IDOK, this));
    button1.SizeToContent();
    VERIFY(button2.SubclassDlgItem(IDCANCEL, this));
    button2.SizeToContent();

    return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// BitmapButton Test dialog #2

// In this example we use the CBitmapButton AutoLoad member function.
//  Autoload uses the text/title of the button as the base resource name.
//  For this trivial example the buttons are called "OK" and "CANCEL",
//  which use the bitmaps "OKU", "OKD", "OKF", "CANCELU", "CANCELD"
//  and "CANCELF" respectively for the up, down and focused images.

#define ID_BUTTON_MIN       IDOK
#define N_BUTTONS   (IDCANCEL - ID_BUTTON_MIN + 1)

class CBMTest2Dlg : public CDialog
{
protected:
    // array of buttons constructed with no attached bitmap images
    CBitmapButton buttons[N_BUTTONS];
public:
    //{{AFX_DATA(CBMTest2Dlg)
        enum { IDD = IDM_TEST_BITMAP_BUTTON2 };
    //}}AFX_DATA
    CBMTest2Dlg()
        : CDialog(CBMTest2Dlg::IDD)
        { }

    BOOL OnInitDialog();
    //{{AFX_MSG(CBMTest2Dlg)
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()
};

BEGIN_MESSAGE_MAP(CBMTest2Dlg, CDialog)
    //{{AFX_MSG_MAP(CBMTest2Dlg)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()


BOOL CBMTest2Dlg::OnInitDialog()
{
    // load bitmaps for all the bitmap buttons (does SubclassButton as well)
    for (int i = 0; i < N_BUTTONS; i++)
        VERIFY(buttons[i].AutoLoad(ID_BUTTON_MIN + i, this));
    return TRUE;
}

/////////////////////////////////////////////////////////////////////////////
// BitmapButton Test dialog #3

// This is an extension of test dialog 2 using AutoLoad using the disabled
//   state with the "X" suffix.
// Here we use bitmap buttons to select a number between 1 and 10.
// The "PREV" and "NEXT" buttons change the number.  These buttons are
//  disabled when the number hits the limits.

class CBMTest3Dlg : public CDialog
{
protected:
    // construct
    CBitmapButton okButton;
    CBitmapButton prevButton;
    CBitmapButton nextButton;

public:
    int m_nNumber;
    //{{AFX_DATA(CBMTest3Dlg)
        enum { IDD = IDM_TEST_BITMAP_BUTTON3 };
    //}}AFX_DATA

    CBMTest3Dlg()
        : CDialog(CBMTest3Dlg::IDD)
        { }

    BOOL OnInitDialog();
    void Update();

    //{{AFX_MSG(CBMTest3Dlg)
    afx_msg void OnNextNumber();
    afx_msg void OnPrevNumber();
    //}}AFX_MSG
    DECLARE_MESSAGE_MAP()
};

BOOL CBMTest3Dlg::OnInitDialog()
{
    // load bitmaps for all the bitmap buttons (does SubclassButton as well)
    VERIFY(okButton.AutoLoad(IDOK, this));
    VERIFY(prevButton.AutoLoad(ID_PREV, this));
    VERIFY(nextButton.AutoLoad(ID_NEXT, this));
    Update();
    return TRUE;
}

BEGIN_MESSAGE_MAP(CBMTest3Dlg, CDialog)
    //{{AFX_MSG_MAP(CBMTest3Dlg)
    ON_COMMAND(ID_PREV, OnPrevNumber)
    ON_COMMAND(ID_NEXT, OnNextNumber)
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

void CBMTest3Dlg::OnPrevNumber()
{
    m_nNumber--;
    Update();
}

void CBMTest3Dlg::OnNextNumber()
{
    m_nNumber++;
    Update();
}

void CBMTest3Dlg::Update()
{
    SetDlgItemInt(IDC_NUMBEROUT, m_nNumber);
    prevButton.EnableWindow(m_nNumber > 1);
    nextButton.EnableWindow(m_nNumber < 10);
    // move focus to active button
    if (!prevButton.IsWindowEnabled())
        nextButton.SetFocus();
    else if (!nextButton.IsWindowEnabled())
        prevButton.SetFocus();
}

/////////////////////////////////////////////////////////////////////////////
// Test driver routines

void CTestWindow::OnTestBitmapButton1()
{
    CBMTest1Dlg dlg;
    dlg.DoModal();
}

void CTestWindow::OnTestBitmapButton2()
{
    CBMTest2Dlg dlg;
    dlg.DoModal();
}

void CTestWindow::OnTestBitmapButton3()
{
    CBMTest3Dlg dlg;
    dlg.m_nNumber = 5;
    dlg.DoModal();

    CString strYouChose;
    strYouChose.LoadString(IDS_YOU_CHOSE);
    CString strMsg;
    strMsg.Format(strYouChose, dlg.m_nNumber);
    AfxMessageBox(strMsg);
}

/////////////////////////////////////////////////////////////////////////////