152 lines
4.2 KiB
C++
152 lines
4.2 KiB
C++
// custmenu.cpp : custom menu
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//
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// This is a part of the Microsoft Foundation Classes C++ library.
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// Copyright (C) 1992-1998 Microsoft Corporation
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// All rights reserved.
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//
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// This source code is only intended as a supplement to the
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// Microsoft Foundation Classes Reference and related
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// electronic documentation provided with the library.
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// See these sources for detailed information regarding the
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// Microsoft Foundation Classes product.
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#include "stdafx.h"
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#include "ctrltest.h"
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/////////////////////////////////////////////////////////////////////////////
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// for owner draw menus, the CMenu object is embedded in the main frame window
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// the CMenu stays attached to the HMENU while it is running so that
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// owner draw messages are delegated to this class.
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// Since we attach the HMENU to a menu bar (with ModifyMenu below), we
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// don't want to delete the menu twice - so we detach on the destructor.
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CColorMenu::CColorMenu()
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{
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VERIFY(CreateMenu());
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}
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CColorMenu::~CColorMenu()
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{
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Detach();
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ASSERT(m_hMenu == NULL); // defaul CMenu::~CMenu will destroy
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}
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void CColorMenu::AppendColorMenuItem(UINT nID, COLORREF color)
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{
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VERIFY(AppendMenu(MF_ENABLED | MF_OWNERDRAW, nID, (LPCTSTR)color));
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}
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/////////////////////////////////////////////////////////////////////////////
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#define COLOR_BOX_WIDTH 20
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#define COLOR_BOX_HEIGHT 20
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void CColorMenu::MeasureItem(LPMEASUREITEMSTRUCT lpMIS)
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{
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// all items are of fixed size
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lpMIS->itemWidth = COLOR_BOX_WIDTH;
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lpMIS->itemHeight = COLOR_BOX_HEIGHT;
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}
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void CColorMenu::DrawItem(LPDRAWITEMSTRUCT lpDIS)
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{
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CDC* pDC = CDC::FromHandle(lpDIS->hDC);
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COLORREF cr = (COLORREF)lpDIS->itemData; // RGB in item data
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if (lpDIS->itemAction & ODA_DRAWENTIRE)
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{
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// Paint the color item in the color requested
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CBrush br(cr);
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pDC->FillRect(&lpDIS->rcItem, &br);
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}
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if ((lpDIS->itemState & ODS_SELECTED) &&
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(lpDIS->itemAction & (ODA_SELECT | ODA_DRAWENTIRE)))
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{
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// item has been selected - hilite frame
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COLORREF crHilite = RGB(255-GetRValue(cr),
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255-GetGValue(cr), 255-GetBValue(cr));
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CBrush br(crHilite);
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pDC->FrameRect(&lpDIS->rcItem, &br);
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}
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if (!(lpDIS->itemState & ODS_SELECTED) &&
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(lpDIS->itemAction & ODA_SELECT))
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{
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// Item has been de-selected -- remove frame
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CBrush br(cr);
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pDC->FrameRect(&lpDIS->rcItem, &br);
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}
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}
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/////////////////////////////////////////////////////////////////////////////
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// custom menu test - menu ids: index of color.
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static COLORREF colors[] = {
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0x00000000, // black
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0x00FF0000, // blue
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0x0000FF00, // green
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0x00FFFF00, // cyan
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0x000000FF, // red
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0x00FF00FF, // magenta
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0x0000FFFF, // yellow
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0x00FFFFFF // white
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};
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const int nColors = sizeof(colors)/sizeof(colors[0]);
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/////////////////////////////////////////////////////////////////////////////
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// Call AttachCustomMenu once
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// it will replace the menu item with the ID 'IDM_TEST_CUSTOM_MENU'
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// with a color menu popup
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// Replace the specified menu item with a color popup
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void CTestWindow::AttachCustomMenu()
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{
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// now add a few new menu items
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for (int iColor = 0; iColor < nColors; iColor++)
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m_colorMenu.AppendColorMenuItem(IDS_COLOR_NAME_FIRST + iColor, colors[iColor]);
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// Replace the specified menu item with a color popup
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// (note: will only work once)
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CMenu* pMenuBar = GetMenu();
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ASSERT(pMenuBar != NULL);
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TCHAR szString[256]; // don't change the string
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pMenuBar->GetMenuString(IDM_TEST_CUSTOM_MENU, szString, sizeof(szString),
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MF_BYCOMMAND);
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VERIFY(GetMenu()->ModifyMenu(IDM_TEST_CUSTOM_MENU, MF_BYCOMMAND | MF_POPUP,
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(UINT)m_colorMenu.m_hMenu, szString));
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}
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/////////////////////////////////////////////////////////////////////////////
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BOOL CTestWindow::OnCommand(WPARAM wParam, LPARAM lParam)
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{
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if (wParam < IDS_COLOR_NAME_FIRST || wParam >= IDS_COLOR_NAME_FIRST + nColors)
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return CFrameWnd::OnCommand(wParam, lParam); // default
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// special color selected
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CString strYouPicked;
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strYouPicked.LoadString(IDS_YOU_PICKED_COLOR);
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CString strColor;
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strColor.LoadString(wParam);
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CString strMsg;
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strMsg.Format(strYouPicked, (LPCTSTR)strColor);
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CString strMenuTest;
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strMenuTest.LoadString(IDS_MENU_TEST);
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MessageBox(strMsg, strMenuTest);
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return TRUE;
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}
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/////////////////////////////////////////////////////////////////////////////
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