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- //***********************************************************************
- //
- // DlgDemo3.cpp
- //
- //***********************************************************************
-
- #include <afxwin.h>
- #include <stdlib.h>
- #include "Resource.h"
- #include "DlgDemo3.h"
-
- CMyApp myApp;
-
- /////////////////////////////////////////////////////////////////////////
- // CMyApp member functions
-
- BOOL CMyApp::InitInstance ()
- {
- m_pMainWnd = new CMainWindow;
- m_pMainWnd->ShowWindow (m_nCmdShow);
- m_pMainWnd->UpdateWindow ();
- return TRUE;
- }
-
- /////////////////////////////////////////////////////////////////////////
- // CMainWindow message map and member functions
-
- BEGIN_MESSAGE_MAP (CMainWindow, CFrameWnd)
- ON_WM_ERASEBKGND ()
- ON_WM_PAINT ()
- ON_COMMAND (IDM_OPTIONS_SETTINGS, OnOptionsSettings)
- ON_COMMAND (IDM_OPTIONS_EXIT, OnOptionsExit)
- ON_COMMAND (IDM_OPTIONS_ABOUT, OnOptionsAbout)
- END_MESSAGE_MAP ()
-
- CMainWindow::CMainWindow ()
- {
- m_nFillType = 1;
- m_nFillColor = 2;
- m_text = "Hello, MFC";
- m_nHeight = 72;
- m_bBold = TRUE;
- m_bItalic = TRUE;
-
- Create (NULL, "DlgDemo3", WS_OVERLAPPEDWINDOW, rectDefault, NULL,
- MAKEINTRESOURCE (IDR_MAINFRAME));
- }
-
- BOOL CMainWindow::OnEraseBkgnd (CDC* pDC)
- {
- CRect rect;
- GetClientRect (&rect);
-
- m_nFillType == 1 ? DoGradientFill (pDC, &rect) :
- DoSolidFill (pDC, &rect);
- return TRUE;
- }
-
- void CMainWindow::OnPaint ()
- {
- CRect rect;
- GetClientRect (&rect);
-
- CPaintDC dc (this);
- DoDrawText (&dc, &rect);
- }
-
- void CMainWindow::OnOptionsSettings ()
- {
- CSettingsDialog dlg (this);
-
- dlg.m_nFillType = m_nFillType;
- dlg.m_nFillColor = m_nFillColor;
- dlg.m_text = m_text;
- dlg.m_nHeight = m_nHeight;
- dlg.m_bBold = m_bBold;
- dlg.m_bItalic = m_bItalic;
-
- if (dlg.DoModal () == IDOK) {
- m_nFillType = dlg.m_nFillType;
- m_nFillColor = dlg.m_nFillColor;
- m_text = dlg.m_text;
- m_nHeight = dlg.m_nHeight;
- m_bBold = dlg.m_bBold;
- m_bItalic = dlg.m_bItalic;
-
- Invalidate ();
- }
- }
-
- void CMainWindow::OnOptionsExit ()
- {
- SendMessage (WM_CLOSE, 0, 0);
- }
-
- void CMainWindow::OnOptionsAbout ()
- {
- CAboutDialog dlg (this);
- dlg.DoModal ();
- }
-
- void CMainWindow::DoSolidFill (CDC* pDC, CRect* pRect)
- {
- static COLORREF crColor[5] = {
- RGB (255, 0, 0),
- RGB ( 0, 255, 0),
- RGB ( 0, 0, 255),
- RGB (255, 0, 255),
- RGB ( 0, 255, 255),
- };
-
- CBrush brush (crColor[m_nFillColor]);
- pDC->FillRect (pRect, &brush);
- }
-
- void CMainWindow::DoGradientFill (CDC* pDC, CRect* pRect)
- {
- CBrush* pBrush[64];
- for (int i=0; i<64; i++) {
- switch (m_nFillColor) {
-
- case 0:
- pBrush[i] = new CBrush (RGB (255 - (i * 4), 0, 0));
- break;
-
- case 1:
- pBrush[i] = new CBrush (RGB (0, 255 - (i * 4), 0));
- break;
-
- case 2:
- pBrush[i] = new CBrush (RGB (0, 0, 255 - (i * 4)));
- break;
-
- case 3:
- pBrush[i] = new CBrush (RGB (255 - (i * 4), 0,
- 255 - (i * 4)));
- break;
-
- case 4:
- pBrush[i] = new CBrush (RGB (0, 255 - (i * 4),
- 255 - (i * 4)));
- break;
- }
- }
-
- int nWidth = pRect->Width ();
- int nHeight = pRect->Height ();
- CRect rect;
-
- for (i=0; i<nHeight; i++) {
- rect.SetRect (0, i, nWidth, i + 1);
- pDC->FillRect (&rect, pBrush[(i * 63) / nHeight]);
- }
-
- for (i=0; i<64; i++)
- delete pBrush[i];
- }
-
- void CMainWindow::DoDrawText (CDC* pDC, CRect* pRect)
- {
- CFont font;
- int nHeight = -((pDC->GetDeviceCaps (LOGPIXELSY) * m_nHeight) / 72);
-
- font.CreateFont (nHeight, 0, 0, 0, m_bBold ? FW_BOLD : FW_NORMAL,
- m_bItalic, 0, 0, DEFAULT_CHARSET, OUT_CHARACTER_PRECIS,
- CLIP_CHARACTER_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH |
- FF_DONTCARE, "Times New Roman");
-
- pDC->SetBkMode (TRANSPARENT);
- pDC->SetTextColor (RGB (255, 255, 255));
-
- CFont* pOldFont = pDC->SelectObject (&font);
- pDC->DrawText (m_text, -1, pRect, DT_SINGLELINE | DT_CENTER |
- DT_VCENTER);
-
- pDC->SelectObject (pOldFont);
- }
-
- /////////////////////////////////////////////////////////////////////////
- // CSettingsDialog message map and member functions
-
- BEGIN_MESSAGE_MAP (CSettingsDialog, CDialog)
- ON_BN_CLICKED (IDC_DEFAULTS, OnDefaults)
- END_MESSAGE_MAP ()
-
- BOOL CSettingsDialog::OnInitDialog ()
- {
- CDialog::OnInitDialog ();
-
- CheckRadioButton (IDC_SOLID, IDC_GRADIENT, IDC_SOLID + m_nFillType);
- CheckRadioButton (IDC_RED, IDC_CYAN, IDC_RED + m_nFillColor);
-
- ctlText ().SetWindowText (m_text);
- ctlText ().LimitText (32);
-
- char szHeight[4];
- _itoa (m_nHeight, szHeight, 10);
- ctlHeight ().SetWindowText (szHeight);
- ctlHeight ().LimitText (3);
-
- ctlBold ().SetCheck (m_bBold ? BST_CHECKED : BST_UNCHECKED);
- ctlItalic ().SetCheck (m_bItalic ? BST_CHECKED : BST_UNCHECKED);
- return TRUE;
- }
-
- void CSettingsDialog::OnOK ()
- {
- m_nFillType = GetCheckedRadioButton (IDC_SOLID, IDC_GRADIENT);
- m_nFillColor = GetCheckedRadioButton (IDC_RED, IDC_CYAN);
-
- ctlText ().GetWindowText (m_text);
-
- char szHeight[4];
- ctlHeight ().GetWindowText (szHeight, 4);
- m_nHeight = atoi (szHeight);
-
- if ((m_nHeight < 8) || (m_nHeight > 144)) {
- MessageBox ("Text height must be an integer from 8 through 144");
- ctlHeight ().SetFocus ();
- ctlHeight ().SetSel (0, -1);
- return;
- }
-
- m_bBold = (ctlBold ().GetCheck () == BST_CHECKED) ? TRUE : FALSE;
- m_bItalic = (ctlItalic ().GetCheck () == BST_CHECKED) ? TRUE : FALSE;
-
- CDialog::OnOK ();
- }
-
- void CSettingsDialog::OnDefaults ()
- {
- CheckRadioButton (IDC_SOLID, IDC_GRADIENT, IDC_GRADIENT);
- CheckRadioButton (IDC_RED, IDC_CYAN, IDC_BLUE);
-
- ctlText ().SetWindowText ("Hello, MFC");
- ctlHeight ().SetWindowText ("72");
-
- ctlBold ().SetCheck (BST_CHECKED);
- ctlItalic ().SetCheck (BST_CHECKED);
- }
-
- int CSettingsDialog::GetCheckedRadioButton (int nFirst, int nLast)
- {
- int nCount = nLast - nFirst + 1;
-
- for (int i=0; i<nCount; i++)
- if (IsDlgButtonChecked (nFirst + i))
- return i;
-
- return -1;
- }
-
- /////////////////////////////////////////////////////////////////////////
- // CAboutDialog message map and member functions
-
- BEGIN_MESSAGE_MAP (CAboutDialog, CDialog)
- ON_WM_PAINT ()
- END_MESSAGE_MAP ()
-
- BOOL CAboutDialog::OnInitDialog ()
- {
- CDialog::OnInitDialog ();
-
- CStatic* pStatic = (CStatic*) GetDlgItem (IDC_ICONRECT);
- pStatic->GetWindowRect (&m_rect);
- pStatic->DestroyWindow ();
- ScreenToClient (&m_rect);
-
- return TRUE;
- }
-
- void CAboutDialog::OnPaint ()
- {
- CPaintDC dc (this);
- HICON hIcon = (HICON) ::GetClassLong (AfxGetMainWnd ()->m_hWnd,
- GCL_HICON);
-
- if (hIcon != NULL) {
- CDC dcMem;
- dcMem.CreateCompatibleDC (&dc);
-
- CBitmap bitmap;
- bitmap.CreateCompatibleBitmap (&dc, 32, 32);
- CBitmap* pOldBitmap = dcMem.SelectObject (&bitmap);
-
- CBrush brush (::GetSysColor (COLOR_3DFACE));
- dcMem.FillRect (CRect (0, 0, 32, 32), &brush);
- dcMem.DrawIcon (0, 0, hIcon);
-
- dc.StretchBlt (m_rect.left, m_rect.top, m_rect.Width(),
- m_rect.Height (), &dcMem, 0, 0, 32, 32, SRCCOPY);
-
- dcMem.SelectObject (pOldBitmap);
- }
- }
-