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1.1 root 1: // This is a part of the Microsoft Foundation Classes C++ library.
2: // Copyright (C) 1992 Microsoft Corporation
3: // All rights reserved.
4: //
5: // This source code is only intended as a supplement to the
6: // Microsoft Foundation Classes Reference and Microsoft
7: // QuickHelp documentation provided with the library.
8: // See these sources for detailed information regarding the
9: // Microsoft Foundation Classes product.
10:
11: #include "minsvrMI.h"
12:
13: // Main window and user interface parts
14:
15: /////////////////////////////////////////////////////////////////////////////
16:
17: // message map since we are a window
18: BEGIN_MESSAGE_MAP(CMiApp, CFrameWnd)
19: // windows messages
20: ON_MESSAGE(WM_CLOSE, OnCloseWindow)
21: // Both CWnd and COleServer have an 'OnClose' member function but
22: // they differ only by the return type.
23: // Unfortunately C++ multiple inheritance rules prevent us from
24: // from overriding either of them. We use the more general
25: // form of message map entries to replace CWnd::OnClose with
26: // CMiApp::OnCloseWindow to get around this restriction of C++.
27:
28: // menu commands
29: ON_COMMAND(IDM_UPDATE, OnUpdateClient)
30: ON_COMMAND(IDM_EXIT, OnFileExit)
31: ON_COMMAND(IDM_CHANGESTRING, OnChangeString)
32: ON_COMMAND(IDM_ABOUT, OnAbout)
33: END_MESSAGE_MAP()
34:
35: /////////////////////////////////////////////////////////////////////////////
36: // File menu commands
37:
38: void CMiApp::OnFileExit()
39: {
40: // to shut-down, just revoke the server, OLE will terminate the app
41: COleServer::BeginRevoke();
42: }
43:
44: LONG CMiApp::OnCloseWindow(UINT, LONG)
45: {
46: OnFileExit();
47: return 0;
48: }
49:
50: void CMiApp::PostNcDestroy()
51: {
52: // CFrameWnd::PostNcDestroy will 'delete this'.
53: // since the CMiApp is-a CFrameWnd we don't want PostNcDestroy
54: // to do anything - so we override it here to remove the default
55: // behaviour.
56: }
57:
58: /////////////////////////////////////////////////////////////////////////////
59:
60: void CMiApp::OnUpdateClient()
61: {
62: TRY
63: {
64: NotifySaved();
65: }
66: CATCH (CException, e)
67: {
68: MessageBox("Couldn't update client");
69: }
70: END_CATCH
71: }
72:
73: // Help menu commands
74: void CMiApp::OnAbout()
75: {
76: CModalDialog dlg("AboutBox");
77: dlg.DoModal();
78: }
79:
80: /////////////////////////////////////////////////////////////////////////////
81: // OLE Item UI
82:
83: OLESTATUS CMiApp::OnShow(BOOL /* bTakeFocus */)
84: {
85: // make sure server is the topmost window
86: BringWindowToTop();
87: return OLE_OK;
88: }
89:
90: ///////////////////////////////////////////
91: // Simple dialog for changing the string
92:
93: class CChangeDlg : public CModalDialog
94: {
95: protected:
96: CString& m_rString;
97:
98: public:
99: CChangeDlg(CString& rString)
100: : CModalDialog("ChangeDlg"), m_rString(rString)
101: { }
102:
103: BOOL OnInitDialog()
104: {
105: GetDlgItem(IDC_EDIT1)->SetWindowText(m_rString);
106: return TRUE;
107: }
108: void OnOK()
109: {
110: GetDlgItem(IDC_EDIT1)->GetWindowText(m_rString);
111: EndDialog(IDOK);
112: }
113: };
114:
115:
116: void CMiApp::OnChangeString()
117: {
118: CChangeDlg dlg(m_data);
119: if (dlg.DoModal() == IDOK && COleServerDoc::IsOpen())
120: OnUpdateClient(); // example of immediately updating client
121: }
122:
123: /////////////////////////////////////////////////////////////////////////////
124: // Drawing items into bitmap or metafile
125:
126: BOOL CMiApp::OnDraw(CMetaFileDC* pDC)
127: {
128: ASSERT_VALID(pDC);
129: CSize textSize;
130:
131: // first calculate the text size in MM_TEXT units
132: {
133: CWindowDC screenDC(NULL);
134: textSize = screenDC.GetTextExtent(m_data, m_data.GetLength());
135: }
136:
137: // if you want the item to always be drawn in a specific mapping
138: // mode set it here.
139:
140: // Otherwise the OLE DLLs will scale the metafile to fit the
141: // client specified size. Setting the viewport size/extent
142: // determines the relative scale of everything.
143:
144: int cx = textSize.cx + 100;
145: int cy = (cx * 4) / 3; // nice aspect ratio
146: TRACE("Item drawing size is %d x %d\n", cx, cy);
147: pDC->SetWindowExt(cx, cy);
148:
149: // Draw a shaded circle
150: pDC->SelectStockObject(LTGRAY_BRUSH);
151: pDC->Ellipse(0, 0, cx, cy);
152:
153: // draw the text in the middle (as best we can)
154: pDC->SetBkMode(TRANSPARENT);
155: pDC->TextOut((cx - textSize.cx) / 2, (cy - textSize.cy) / 2, m_data);
156:
157: return TRUE;
158: }
159:
160: /////////////////////////////////////////////////////////////////////////////
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