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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- #ifndef __H_CDeviceLoop
- #define __H_CDeviceLoop
- #pragma once
-
- /*======================================================================================
-
- DESCRIPTION: Implements an optimized stack-based device loop object.
-
- Example:
-
- Int16 depth;
- TDeviceLoop theLoop(frame, depth);
-
- if ( depth ) do {
- switch ( depth ) {
-
- case 1: // Black & white
- break;
-
- case 4: // 16 colors
- break;
-
- case 8: // 256 colors
- break;
-
- case 16: // Thousands of colors
- break;
-
- case 32: // Millions of colors
- break;
- }
- } while ( theLoop.NextDepth(depth) );
-
- MODIFICATIONS:
-
- Date Person Description
- ---- ------ -----------
- ======================================================================================*/
-
-
- /*====================================================================================*/
- #pragma mark INCLUDE FILES
- /*====================================================================================*/
-
-
- /*====================================================================================*/
- #pragma mark TYPEDEFS
- /*====================================================================================*/
-
-
- /*====================================================================================*/
- #pragma mark CONSTANTS
- /*====================================================================================*/
-
-
- /*====================================================================================*/
- #pragma mark CLASS DECLARATIONS
- /*====================================================================================*/
-
- #pragma mark -
-
- class CDeviceLoop {
-
- public:
-
- CDeviceLoop(const Rect &inLocalRect, Int16 &outFirstDepth);
- ~CDeviceLoop(void);
-
- Boolean NextDepth(Int16 &outNextDepth);
-
- protected:
-
- void ClipToIntersection(const Rect &inLocalRect);
-
- // Instance variables
-
- Rect mGlobalRect;
- GDHandle mCurrentDevice;
- RgnHandle mSaveClip;
-
- };
-
- #endif // __H_CDeviceLoop
-
-