зеркало из https://github.com/mozilla/gecko-dev.git
125 строки
3.6 KiB
C++
125 строки
3.6 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
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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 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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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ISCROLLBAR_IID)
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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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