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137 lines
4.7 KiB
C++
137 lines
4.7 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 License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#pragma once
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#include "divview.h"
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//-----------------------------------
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class CExpansionData
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// persistent data about both states of a CExpandable.
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//-----------------------------------
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{
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public:
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virtual void ReadStatus(LStream* inStream) = 0;
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virtual void WriteStatus(LStream* inStream) = 0;
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}; // class CExpansionData
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enum { closed_state = false, open_state = true };
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typedef Boolean ExpandStateT;
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//======================================
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class CExpandable
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//======================================
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{
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public:
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virtual void ReadStatus(LStream* inStream);
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virtual void WriteStatus(LStream* inStream);
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ExpandStateT GetExpandState() const { return mExpandState; }
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void NoteExpandState(ExpandStateT inExpanded) { mExpandState = inExpanded; }
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protected:
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virtual void SetExpandState(ExpandStateT inExpanded) = 0;
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private:
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virtual void StoreDimensions(CExpansionData& outState) = 0;
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virtual void RecallDimensions(const CExpansionData& inState) = 0;
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protected:
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CExpandable(CExpansionData* closedState, CExpansionData* openState);
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// clients that mix this class in should have two members that are
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// CExpansionData, and pass the references in here.
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protected:
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void StoreCurrentDimensions();
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void RecallCurrentDimensions();
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void RecallOtherDimensions();
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protected:
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ExpandStateT mExpandState;
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CExpansionData* mStates[2];
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}; // class CExpandable
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//======================================
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class CExpandoListener : public LListener, public CExpandable
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//======================================
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{
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public:
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enum { msg_TwistieMessage = 'Twst' }; // Broadcast by twistie control
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CExpandoListener(
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CExpansionData* closedState, CExpansionData* openState)
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: CExpandable(closedState, openState) {}
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virtual void ListenToMessage(MessageT inMessage, void *ioParam);
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// Listen to the twistie
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}; // class CExpandoListener
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//======================================
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class CDividerData : public CExpansionData
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//======================================
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{
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public:
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CDividerData();
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// default is set for the open state, because the closed state is in the PPOb.
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// Overrides
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virtual void ReadStatus(LStream* inStream);
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virtual void WriteStatus(LStream* inStream);
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// Data
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SInt32 mDividerPosition;
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}; // class CDividerData
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//======================================
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class CExpandoDivider : public LDividedView, public CExpandable
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// This class acts like a divider between two panes, one above the other.
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// In addition to the LDividedView behavior, it also has an "expando" twistie, that
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// hides/shows the bottom pane.
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//======================================
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{
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private:
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typedef LDividedView Inherited;
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public:
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enum { class_ID = 'Expo' };
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CExpandoDivider(LStream* inStream);
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virtual ~CExpandoDivider();
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// PowerPlant overrides
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protected:
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virtual void FinishCreateSelf();
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virtual void ClickSelf(const SMouseDownEvent& inMouseDown);
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virtual void AdjustCursorSelf(Point inPortPt, const EventRecord& inMacEvent);
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public:
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virtual void ResizeFrameBy(
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Int16 inWidthDelta,
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Int16 inHeightDelta,
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Boolean inRefresh);
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// CExpandable overrides
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public:
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virtual void SetExpandState(ExpandStateT inExpanded);
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virtual void StoreDimensions(CExpansionData& outState);
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virtual void RecallDimensions(const CExpansionData& inState);
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// Special interfaces
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public:
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Int16 GetCorrectDistanceFromBottom() const { return mDistanceFromWindowBottom; }
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Int16 GetCorrectDividerDistanceFromBottom() const
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{ return mDividerDistanceFromWindowBottom; }
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// Down to business:
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protected:
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virtual void ChangeDividerPosition(Int16 delta); // also changes the twistie+caption
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virtual void ChangeTwistiePosition(Int16 delta); // only changes the twistie+caption
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void SetStickToBottom(LPane* inPane, Boolean inStick);
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void SetStickToBottom(Boolean inStick);
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// Data:
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protected:
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Int16 mDistanceFromWindowBottom;
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Int16 mDividerDistanceFromWindowBottom;
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LPane *mTwistie, *mCaption;
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CDividerData mClosedData, mOpenData;
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}; // class CExpandoDivider
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