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- // custmenu.cpp : custom menu
- //
- // This is a part of the Microsoft Foundation Classes C++ library.
- // Copyright (C) 1992 Microsoft Corporation
- // All rights reserved.
- //
- // This source code is only intended as a supplement to the
- // Microsoft Foundation Classes Reference and Microsoft
- // QuickHelp documentation provided with the library.
- // See these sources for detailed information regarding the
- // Microsoft Foundation Classes product.
-
- #include "ctrltest.h"
-
- /////////////////////////////////////////////////////////////////////////////
-
- // for owner draw menus, the CMenu object is embedded in the main frame window
- // the CMenu stays attached to the HMENU while it is running so that
- // owner draw messages are delegated to this class.
- // Since we attach the HMENU to a menu bar (with ModifyMenu below), we
- // don't want to delete the menu twice - so we detach on the destructor.
-
- CColorMenu::CColorMenu()
- {
- VERIFY(CreateMenu());
- }
-
- CColorMenu::~CColorMenu()
- {
- Detach();
- ASSERT(m_hMenu == NULL); // defaul CMenu::~CMenu will destroy
- }
-
- void CColorMenu::AppendColorMenuItem(UINT nID, COLORREF color)
- {
- VERIFY(AppendMenu(MF_ENABLED | MF_OWNERDRAW, nID, (LPCSTR)color));
- }
-
- /////////////////////////////////////////////////////////////////////////////
-
- #define COLOR_BOX_WIDTH 20
- #define COLOR_BOX_HEIGHT 20
-
-
- void CColorMenu::MeasureItem(LPMEASUREITEMSTRUCT lpMIS)
- {
- // all items are of fixed size
- lpMIS->itemWidth = COLOR_BOX_WIDTH;
- lpMIS->itemHeight = COLOR_BOX_HEIGHT;
- }
-
- void CColorMenu::DrawItem(LPDRAWITEMSTRUCT lpDIS)
- {
- CDC* pDC = CDC::FromHandle(lpDIS->hDC);
- COLORREF cr = lpDIS->itemData; // RGB in item data
-
- if (lpDIS->itemAction & ODA_DRAWENTIRE)
- {
- // Paint the color item in the color requested
- CBrush br(cr);
- pDC->FillRect(&lpDIS->rcItem, &br);
- }
-
- if ((lpDIS->itemState & ODS_SELECTED) &&
- (lpDIS->itemAction & (ODA_SELECT | ODA_DRAWENTIRE)))
- {
- // item has been selected - hilite frame
- COLORREF crHilite = RGB(255-GetRValue(cr),
- 255-GetGValue(cr), 255-GetBValue(cr));
- CBrush br(crHilite);
- pDC->FrameRect(&lpDIS->rcItem, &br);
- }
-
- if (!(lpDIS->itemState & ODS_SELECTED) &&
- (lpDIS->itemAction & ODA_SELECT))
- {
- // Item has been de-selected -- remove frame
- CBrush br(cr);
- pDC->FrameRect(&lpDIS->rcItem, &br);
- }
- }
-
- /////////////////////////////////////////////////////////////////////////////
-
- // Call AttachCustomMenu once
- // it will replace the menu item with the ID 'IDM_TEST_CUSTOM_MENU'
- // with a color menu popup
- // Replace the specified menu item with a color popup
- void CTestWindow::AttachCustomMenu()
- {
- // now add a few new menu items
- for (int iColor = 0; iColor <= (IDM_COLOR_LAST-IDM_COLOR_FIRST); iColor++)
- {
- // 3 bit encoded RGB values
- BYTE red = (iColor & 4) * 255;
- BYTE green = (iColor & 2) * 255;
- BYTE blue = (iColor & 1) * 255;
-
- m_colorMenu.AppendColorMenuItem(IDM_COLOR_FIRST + iColor,
- RGB(red, green, blue));
- }
-
- // Replace the specified menu item with a color popup
- // (note: will only work once)
- CMenu* pMenuBar = GetMenu();
- ASSERT(pMenuBar != NULL);
- char szString[256]; // don't change the string
-
- pMenuBar->GetMenuString(IDM_TEST_CUSTOM_MENU, szString, sizeof(szString),
- MF_BYCOMMAND);
- VERIFY(GetMenu()->ModifyMenu(IDM_TEST_CUSTOM_MENU, MF_BYCOMMAND | MF_POPUP,
- (UINT)m_colorMenu.m_hMenu, szString));
- }
-
- /////////////////////////////////////////////////////////////////////////////
-
- char* colorNames[] =
- {
- "black", "blue", "green", "cyan",
- "red", "magenta", "yellow", "white"
- };
-
- BOOL CTestWindow::OnCommand(UINT wParam, LONG lParam)
- {
- if (wParam < IDM_COLOR_FIRST || wParam > IDM_COLOR_LAST)
- return CFrameWnd::OnCommand(wParam, lParam); // default
-
- // special color selected
- char szT[256];
- sprintf(szT, "You picked %s", colorNames[wParam - IDM_COLOR_FIRST]);
- MessageBox(szT, "MenuTest");
- return TRUE;
- }
-
- /////////////////////////////////////////////////////////////////////////////
-