зеркало из https://github.com/mozilla/gecko-dev.git
77 строки
2.5 KiB
C++
77 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef _MsgLPane_H_
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#define _MsgLPane_H_
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#include "msgpane.h"
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typedef struct MSG_LinedPaneStack MSG_LinedPaneStack;
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class MSG_LinedPane : public MSG_Pane {
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public:
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MSG_LinedPane(MWContext* context, MSG_Master* master);
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virtual ~MSG_LinedPane();
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virtual XP_Bool IsLinePane();
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virtual void ToggleExpansion(MSG_ViewIndex line, int32* numchanged) = 0;
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virtual int32 ExpansionDelta(MSG_ViewIndex line) = 0;
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virtual int32 GetNumLines() = 0;
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virtual void StartingUpdate(MSG_NOTIFY_CODE code, MSG_ViewIndex where,
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int32 num);
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virtual void EndingUpdate(MSG_NOTIFY_CODE code, MSG_ViewIndex where,
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int32 num);
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virtual void OnFolderChanged(MSG_FolderInfo *);
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virtual XP_Bool IsValidIndex(MSG_ViewIndex index);
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protected:
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virtual void FEStart() { // Starting a call from the FE.
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m_fecount++;
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}
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virtual void FEEnd() { // Finished a call from the FE.
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m_fecount--;
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XP_ASSERT(m_fecount >= 0);
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}
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virtual void DisableUpdate(); // Don't actually do anything when calling
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// StartingUpdate() and EndingUpdate().
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virtual void EnableUpdate(); // OK; StartingUpdate() and EndingUpdate()
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// can do things again.
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MSG_LinedPaneStack* m_stack;// Used only when DEBUG is on; helps check
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// that calls to StartingUpdate and
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// EndingUpdate match up correctly.
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// m_numstack is now in the base class because we use it to know if we're nested
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int m_maxstack;
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int m_fecount; // How many calls we've had to FEStart()
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// without a matching call to FEEnd().
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int m_disablecount; // How many calls we've had to DisableUpdate()
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// without a matching call to EnableUpdate().
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};
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#endif /* _MsgLPane_H_ */
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