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