LCOV - code coverage report
Current view: directory - layout/xul/base/src - nsBox.h (source / functions) Found Hit Coverage
Test: app.info Lines: 2 0 0.0 %
Date: 2012-06-02 Functions: 2 0 0.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Mozilla Communicator client code.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either of the GNU General Public License Version 2 or later (the "GPL"),
      26                 :  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #ifndef nsBox_h___
      39                 : #define nsBox_h___
      40                 : 
      41                 : #include "nsIFrame.h"
      42                 : 
      43                 : class nsITheme;
      44                 : 
      45                 : #define NS_STATE_IS_ROOT        NS_FRAME_STATE_BIT(24)
      46                 : #define NS_STATE_SET_TO_DEBUG   NS_FRAME_STATE_BIT(26)
      47                 : #define NS_STATE_DEBUG_WAS_SET  NS_FRAME_STATE_BIT(27)
      48                 : 
      49                 : class nsBox : public nsIFrame {
      50                 : 
      51                 : public:
      52                 : 
      53                 :   friend class nsIFrame;
      54                 : 
      55                 :   static void Shutdown();
      56                 : 
      57                 :   virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState);
      58                 :   virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState);
      59                 :   virtual nsSize GetMaxSize(nsBoxLayoutState& aBoxLayoutState);
      60                 :   virtual nscoord GetFlex(nsBoxLayoutState& aBoxLayoutState);
      61                 :   virtual nscoord GetBoxAscent(nsBoxLayoutState& aBoxLayoutState);
      62                 : 
      63                 :   virtual nsSize GetMinSizeForScrollArea(nsBoxLayoutState& aBoxLayoutState);
      64                 : 
      65                 :   virtual bool IsCollapsed();
      66                 : 
      67                 :   virtual void SetBounds(nsBoxLayoutState& aBoxLayoutState, const nsRect& aRect,
      68                 :                          bool aRemoveOverflowAreas = false);
      69                 : 
      70                 :   NS_IMETHOD GetBorder(nsMargin& aBorderAndPadding);
      71                 :   NS_IMETHOD GetPadding(nsMargin& aBorderAndPadding);
      72                 :   NS_IMETHOD GetMargin(nsMargin& aMargin);
      73                 : 
      74               0 :   virtual Valignment GetVAlign() const { return vAlign_Top; }
      75               0 :   virtual Halignment GetHAlign() const { return hAlign_Left; }
      76                 : 
      77                 :   NS_IMETHOD RelayoutChildAtOrdinal(nsBoxLayoutState& aState, nsIBox* aChild);
      78                 : 
      79                 : #ifdef DEBUG_LAYOUT
      80                 :   NS_IMETHOD GetDebugBoxAt(const nsPoint& aPoint, nsIBox** aBox);
      81                 :   NS_IMETHOD GetDebug(bool& aDebug);
      82                 :   NS_IMETHOD SetDebug(nsBoxLayoutState& aState, bool aDebug);
      83                 : 
      84                 :   NS_IMETHOD DumpBox(FILE* out);
      85                 :   NS_HIDDEN_(void) PropagateDebug(nsBoxLayoutState& aState);
      86                 : #endif
      87                 : 
      88                 :   nsBox();
      89                 :   virtual ~nsBox();
      90                 : 
      91                 :   /**
      92                 :    * Returns true if this box clips its children, e.g., if this box is an sc
      93                 : rollbox.
      94                 :   */
      95                 :   virtual bool DoesClipChildren();
      96                 :   virtual bool ComputesOwnOverflowArea() = 0;
      97                 : 
      98                 :   NS_HIDDEN_(nsresult) SyncLayout(nsBoxLayoutState& aBoxLayoutState);
      99                 : 
     100                 :   bool DoesNeedRecalc(const nsSize& aSize);
     101                 :   bool DoesNeedRecalc(nscoord aCoord);
     102                 :   void SizeNeedsRecalc(nsSize& aSize);
     103                 :   void CoordNeedsRecalc(nscoord& aCoord);
     104                 : 
     105                 :   void AddBorderAndPadding(nsSize& aSize);
     106                 : 
     107                 :   static void AddBorderAndPadding(nsIBox* aBox, nsSize& aSize);
     108                 :   static void AddMargin(nsIBox* aChild, nsSize& aSize);
     109                 :   static void AddMargin(nsSize& aSize, const nsMargin& aMargin);
     110                 : 
     111                 :   static nsSize BoundsCheckMinMax(const nsSize& aMinSize, const nsSize& aMaxSize);
     112                 :   static nsSize BoundsCheck(const nsSize& aMinSize, const nsSize& aPrefSize, const nsSize& aMaxSize);
     113                 :   static nscoord BoundsCheck(nscoord aMinSize, nscoord aPrefSize, nscoord aMaxSize);
     114                 : 
     115                 : protected:
     116                 : 
     117                 : #ifdef DEBUG_LAYOUT
     118                 :   virtual void AppendAttribute(const nsAutoString& aAttribute, const nsAutoString& aValue, nsAutoString& aResult);
     119                 : 
     120                 :   virtual void ListBox(nsAutoString& aResult);
     121                 : #endif
     122                 :   
     123                 :   virtual void GetLayoutFlags(PRUint32& aFlags);
     124                 : 
     125                 :   NS_HIDDEN_(nsresult) BeginLayout(nsBoxLayoutState& aState);
     126                 :   NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState);
     127                 :   NS_HIDDEN_(nsresult) EndLayout(nsBoxLayoutState& aState);
     128                 : 
     129                 : #ifdef DEBUG_LAYOUT
     130                 :   virtual void GetBoxName(nsAutoString& aName);
     131                 :   NS_HIDDEN_(void) PropagateDebug(nsBoxLayoutState& aState);
     132                 : #endif
     133                 : 
     134                 :   static bool gGotTheme;
     135                 :   static nsITheme* gTheme;
     136                 : 
     137                 :   enum eMouseThrough {
     138                 :     unset,
     139                 :     never,
     140                 :     always
     141                 :   };
     142                 : 
     143                 : private:
     144                 : 
     145                 :   //nscoord mX;
     146                 :   //nscoord mY;
     147                 : };
     148                 : 
     149                 : #ifdef DEBUG_LAYOUT
     150                 : #define NS_BOX_ASSERTION(box,expr,str) \
     151                 :   if (!(expr)) { \
     152                 :        box->DumpBox(stdout); \
     153                 :        NS_DebugBreak(NSDebugAssertion, str, #expr, __FILE__, __LINE__); \
     154                 :   }
     155                 : #else
     156                 : #define NS_BOX_ASSERTION(box,expr,str) {}
     157                 : #endif
     158                 : 
     159                 : #endif
     160                 : 

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