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1.1 root 1: // custmenu.cpp : custom menu
2: //
3: // This is a part of the Microsoft Foundation Classes C++ library.
4: // Copyright (C) 1992 Microsoft Corporation
5: // All rights reserved.
6: //
7: // This source code is only intended as a supplement to the
8: // Microsoft Foundation Classes Reference and Microsoft
9: // QuickHelp documentation provided with the library.
10: // See these sources for detailed information regarding the
11: // Microsoft Foundation Classes product.
12:
13: #include "ctrltest.h"
14:
15: /////////////////////////////////////////////////////////////////////////////
16:
17: // for owner draw menus, the CMenu object is embedded in the main frame window
18: // the CMenu stays attached to the HMENU while it is running so that
19: // owner draw messages are delegated to this class.
20: // Since we attach the HMENU to a menu bar (with ModifyMenu below), we
21: // don't want to delete the menu twice - so we detach on the destructor.
22:
23: CColorMenu::CColorMenu()
24: {
25: VERIFY(CreateMenu());
26: }
27:
28: CColorMenu::~CColorMenu()
29: {
30: Detach();
31: ASSERT(m_hMenu == NULL); // defaul CMenu::~CMenu will destroy
32: }
33:
34: void CColorMenu::AppendColorMenuItem(UINT nID, COLORREF color)
35: {
36: VERIFY(AppendMenu(MF_ENABLED | MF_OWNERDRAW, nID, (LPCSTR)color));
37: }
38:
39: /////////////////////////////////////////////////////////////////////////////
40:
41: #define COLOR_BOX_WIDTH 20
42: #define COLOR_BOX_HEIGHT 20
43:
44:
45: void CColorMenu::MeasureItem(LPMEASUREITEMSTRUCT lpMIS)
46: {
47: // all items are of fixed size
48: lpMIS->itemWidth = COLOR_BOX_WIDTH;
49: lpMIS->itemHeight = COLOR_BOX_HEIGHT;
50: }
51:
52: void CColorMenu::DrawItem(LPDRAWITEMSTRUCT lpDIS)
53: {
54: CDC* pDC = CDC::FromHandle(lpDIS->hDC);
55: COLORREF cr = lpDIS->itemData; // RGB in item data
56:
57: if (lpDIS->itemAction & ODA_DRAWENTIRE)
58: {
59: // Paint the color item in the color requested
60: CBrush br(cr);
61: pDC->FillRect(&lpDIS->rcItem, &br);
62: }
63:
64: if ((lpDIS->itemState & ODS_SELECTED) &&
65: (lpDIS->itemAction & (ODA_SELECT | ODA_DRAWENTIRE)))
66: {
67: // item has been selected - hilite frame
68: COLORREF crHilite = RGB(255-GetRValue(cr),
69: 255-GetGValue(cr), 255-GetBValue(cr));
70: CBrush br(crHilite);
71: pDC->FrameRect(&lpDIS->rcItem, &br);
72: }
73:
74: if (!(lpDIS->itemState & ODS_SELECTED) &&
75: (lpDIS->itemAction & ODA_SELECT))
76: {
77: // Item has been de-selected -- remove frame
78: CBrush br(cr);
79: pDC->FrameRect(&lpDIS->rcItem, &br);
80: }
81: }
82:
83: /////////////////////////////////////////////////////////////////////////////
84:
85: // Call AttachCustomMenu once
86: // it will replace the menu item with the ID 'IDM_TEST_CUSTOM_MENU'
87: // with a color menu popup
88: // Replace the specified menu item with a color popup
89: void CTestWindow::AttachCustomMenu()
90: {
91: // now add a few new menu items
92: for (int iColor = 0; iColor <= (IDM_COLOR_LAST-IDM_COLOR_FIRST); iColor++)
93: {
94: // 3 bit encoded RGB values
1.1.1.2 ! root 95: BYTE red = (iColor & 4) ? 0xff : 0;
! 96: BYTE green = (iColor & 2) ? 0xff : 0;
! 97: BYTE blue = (iColor & 1) ? 0xff : 0;
1.1 root 98:
99: m_colorMenu.AppendColorMenuItem(IDM_COLOR_FIRST + iColor,
100: RGB(red, green, blue));
101: }
102:
103: // Replace the specified menu item with a color popup
104: // (note: will only work once)
105: CMenu* pMenuBar = GetMenu();
106: ASSERT(pMenuBar != NULL);
107: char szString[256]; // don't change the string
108:
109: pMenuBar->GetMenuString(IDM_TEST_CUSTOM_MENU, szString, sizeof(szString),
110: MF_BYCOMMAND);
111: VERIFY(GetMenu()->ModifyMenu(IDM_TEST_CUSTOM_MENU, MF_BYCOMMAND | MF_POPUP,
112: (UINT)m_colorMenu.m_hMenu, szString));
113: }
114:
115: /////////////////////////////////////////////////////////////////////////////
116:
117: char* colorNames[] =
118: {
119: "black", "blue", "green", "cyan",
120: "red", "magenta", "yellow", "white"
121: };
122:
123: BOOL CTestWindow::OnCommand(UINT wParam, LONG lParam)
124: {
125: if (wParam < IDM_COLOR_FIRST || wParam > IDM_COLOR_LAST)
126: return CFrameWnd::OnCommand(wParam, lParam); // default
127:
128: // special color selected
129: char szT[256];
130: sprintf(szT, "You picked %s", colorNames[wParam - IDM_COLOR_FIRST]);
131: MessageBox(szT, "MenuTest");
132: return TRUE;
133: }
134:
135: /////////////////////////////////////////////////////////////////////////////
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