mirror of
https://github.com/rn10950/RetroZilla.git
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119 lines
4.6 KiB
C++
119 lines
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsITheme_h_
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#define nsITheme_h_
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#include "nsISupports.h"
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#include "nsCOMPtr.h"
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#include "nsColor.h"
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struct nsRect;
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struct nsSize;
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struct nsFont;
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struct nsMargin;
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class nsPresContext;
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class nsIRenderingContext;
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class nsIDeviceContext;
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class nsIFrame;
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class nsIContent;
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class nsIAtom;
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// IID for the nsITheme interface
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// {75220e36-b77a-464c-bd82-988cf86391cc}
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#define NS_ITHEME_IID \
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{ 0x75220e36, 0xb77a, 0x464c, { 0xbd, 0x82, 0x98, 0x8c, 0xf8, 0x63, 0x91, 0xcc } }
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// {D930E29B-6909-44e5-AB4B-AF10D6923705}
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#define NS_THEMERENDERER_CID \
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{ 0xd930e29b, 0x6909, 0x44e5, { 0xab, 0x4b, 0xaf, 0x10, 0xd6, 0x92, 0x37, 0x5 } }
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class nsITheme: public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ITHEME_IID)
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NS_IMETHOD DrawWidgetBackground(nsIRenderingContext* aContext,
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nsIFrame* aFrame,
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PRUint8 aWidgetType,
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const nsRect& aRect,
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const nsRect& aClipRect)=0;
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NS_IMETHOD GetWidgetBorder(nsIDeviceContext* aContext,
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nsIFrame* aFrame,
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PRUint8 aWidgetType,
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nsMargin* aResult)=0;
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// This method can return PR_FALSE to indicate that the CSS padding value
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// should be used. Otherwise, it will fill in aResult with the desired
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// padding and return PR_TRUE.
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virtual PRBool GetWidgetPadding(nsIDeviceContext* aContext,
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nsIFrame* aFrame,
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PRUint8 aWidgetType,
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nsMargin* aResult) = 0;
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// This method can return PR_FALSE to indicate that no special overflow
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// area is required by the native widget. Otherwise it will fill in
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// aResult with the desired overflow area and return PR_TRUE.
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virtual PRBool GetWidgetOverflow(nsIDeviceContext* aContext,
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nsIFrame* aFrame,
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PRUint8 aWidgetType,
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nsRect* aResult)
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{ return PR_FALSE; }
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NS_IMETHOD GetMinimumWidgetSize(nsIRenderingContext* aContext, nsIFrame* aFrame,
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PRUint8 aWidgetType,
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nsSize* aResult,
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PRBool* aIsOverridable)=0;
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NS_IMETHOD WidgetStateChanged(nsIFrame* aFrame, PRUint8 aWidgetType,
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nsIAtom* aAttribute, PRBool* aShouldRepaint)=0;
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NS_IMETHOD ThemeChanged()=0;
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virtual PRBool ThemeSupportsWidget(nsPresContext* aPresContext,
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nsIFrame* aFrame,
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PRUint8 aWidgetType)=0;
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virtual PRBool WidgetIsContainer(PRUint8 aWidgetType)=0;
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};
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// Creator function
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extern NS_METHOD NS_NewNativeTheme(nsISupports *aOuter, REFNSIID aIID, void **aResult);
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#endif
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