89 lines
3.5 KiB
C
89 lines
3.5 KiB
C
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//=============================================================================
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// CPageBase defines a class which is an interface from which the tab page
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// classes will inherit (using multiple inheritance). These methods will be
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// called by the main MSConfig control to create and manipulate the pages.
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//=============================================================================
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#pragma once
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extern BOOL FileExists(const CString & strFile);
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class CPageBase
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{
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public:
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//-------------------------------------------------------------------------
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// This enumeration is used by the tab to communicate its state. NORMAL
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// means that the tab has made no changes to the system. DIAGNOSTIC
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// means the tab has disabled as much as possible. USER means an in-
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// between state (the user has disabled some things).
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//-------------------------------------------------------------------------
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typedef enum { NORMAL, DIAGNOSTIC, USER } TabState;
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public:
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CPageBase() : m_fMadeChange(FALSE), m_fInitialized(FALSE) { }
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virtual ~CPageBase() { }
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//-------------------------------------------------------------------------
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// Get the tab state. These two functions will return the current tab
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// state, or the state which was last applied to the system.
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//
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// For the default implementation, the base pages should not override the
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// GetAppliedTabState() function, as long as they call
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// CPageBase::SetAppliedState() when changes are applied.
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//-------------------------------------------------------------------------
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virtual TabState GetCurrentTabState() = 0;
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virtual TabState GetAppliedTabState();
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//-------------------------------------------------------------------------
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// CommitChanges() is called when the changes made by this tab are to be
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// made permanent. This base class version can be called if the derived
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// class is letting the base class maintain the applied state.
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//-------------------------------------------------------------------------
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virtual void CommitChanges()
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{
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SetAppliedState(NORMAL);
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}
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//-------------------------------------------------------------------------
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// MadeChanges() should return TRUE if this tab has applied changes to the
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// system. This is checked when determining if the computer should be
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// restarted when MSConfig exits. If the tab maintains the m_fMadeChange
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// variable, this doesn't need to be overridden.
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//-------------------------------------------------------------------------
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virtual BOOL HasAppliedChanges()
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{
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return m_fMadeChange;
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}
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//-------------------------------------------------------------------------
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// GetName() should return the name of this tab. This is an internal,
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// non-localized name.
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//-------------------------------------------------------------------------
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virtual LPCTSTR GetName() = 0;
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//-------------------------------------------------------------------------
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// The following two member functions are called to when the user makes
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// a global change to a tab's state (on the general tab).
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//-------------------------------------------------------------------------
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virtual void SetNormal() = 0;
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virtual void SetDiagnostic() = 0;
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protected:
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//-------------------------------------------------------------------------
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// Sets the applied tab state (if the derived class is allowing the base
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// class to maintain this).
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//-------------------------------------------------------------------------
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void SetAppliedState(TabState state);
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protected:
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BOOL m_fMadeChange; // has the tab applied changes to the system?
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BOOL m_fInitialized; // has OnInitDialog() been called?
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};
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