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fe224e3000
descend from nsIWidget. This conforms better to our standard of not having interfaces inherit from each other. Changed many of the interfaces to be XPCOM complient i.e. all methods return nsresult. Therefore the signature of many of the "getters" changed.
120 lines
3.5 KiB
C++
120 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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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#ifndef nsIScrollbar_h__
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#define nsIScrollbar_h__
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#include "nsIWidget.h"
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// {18032AD2-B265-11d1-AA2A-000000000000}
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#define NS_ISCROLLBAR_IID \
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{ 0x18032ad2, 0xb265, 0x11d1, \
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{ 0xaa, 0x2a, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 } }
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/**
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*
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* Scrollbar, converts mouse input into values that can be used
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* to shift the contents of a window.
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*
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*/
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class nsIScrollbar : public nsISupports
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{
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public:
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/**
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* Set the scrollbar range
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* @param aEndRange set range for scrollbar from 0 to aEndRange
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* @result NS_Ok if no errors
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*
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*/
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NS_IMETHOD SetMaxRange(PRUint32 aEndRange) = 0;
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/**
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* Get the scrollbar range
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* @return the upper end of the scrollbar range
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* @result NS_Ok if no errors
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*/
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NS_IMETHOD GetMaxRange(PRUint32& aMaxRange) = 0;
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/**
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* Set the thumb position.
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* @param aPos a value between (startRange) and (endRange - thumbSize)
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* @result NS_Ok if no errors
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*
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*/
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NS_IMETHOD SetPosition(PRUint32 aPos) = 0;
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/**
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* Get the thumb position.
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* @return a value between (startRange) and (endRange - thumbSize)
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* @result NS_Ok if no errors
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*
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*/
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NS_IMETHOD GetPosition(PRUint32& aPos) = 0;
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/**
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* Set the thumb size.
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* @param aSize size of the thumb. Must be a value between
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* startRange and endRange
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* @result NS_Ok if no errors
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*/
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NS_IMETHOD SetThumbSize(PRUint32 aSize) = 0;
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/**
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* Get the thumb size.
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* @return size of the thumb. The value is between
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* startRange and endRange
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* @result NS_Ok if no errors
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*/
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NS_IMETHOD GetThumbSize(PRUint32& aSize) = 0;
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/**
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* Set the line increment.
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* @param aSize size of the line increment. The value must
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* be between startRange and endRange
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* @result NS_Ok if no errors
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*/
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NS_IMETHOD SetLineIncrement(PRUint32 aSize) = 0;
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/**
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* Get the line increment.
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* @return size of the line increment. The value is
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* between startRange and endRange
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* @result NS_Ok if no errors
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*/
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NS_IMETHOD GetLineIncrement(PRUint32& aSize) = 0;
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/**
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* Set all scrollbar parameters at once
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* @param aMaxRange set range for scrollbar from 0 to aMaxRange
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* @param aThumbSize size of the thumb. Must be a value between
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* startRange and endRange
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* @param aPosition a value between (startRange) and (endRange - thumbSize)
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* @param aLineIncrement size of the line increment. The value must
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* be between startRange and endRange
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* @result NS_Ok if no errors
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*/
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NS_IMETHOD SetParameters(PRUint32 aMaxRange, PRUint32 aThumbSize,
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PRUint32 aPosition, PRUint32 aLineIncrement) = 0;
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};
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#endif // nsIScrollbar_h__
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