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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 Mozilla Communicator client code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Eric D Vaughan (original author)
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either 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 nsGrid_h___
- #define nsGrid_h___
-
- #include "nsStackLayout.h"
- #include "nsIGridPart.h"
- #include "nsCOMPtr.h"
- #include "nsIFrame.h"
-
- class nsGridRowGroupLayout;
- class nsGridRowLayout;
- class nsBoxLayoutState;
- class nsGridCell;
-
- //#define DEBUG_grid 1
-
- class nsGrid
- {
- public:
- nsGrid();
- ~nsGrid();
-
- nsGridRow* GetColumnAt(PRInt32 aIndex, PRBool aIsHorizontal = PR_TRUE);
- nsGridRow* GetRowAt(PRInt32 aIndex, PRBool aIsHorizontal = PR_TRUE);
- nsGridCell* GetCellAt(PRInt32 aX, PRInt32 aY);
-
- void NeedsRebuild(nsBoxLayoutState& aBoxLayoutState);
- void RebuildIfNeeded();
-
- nsresult GetPrefRowSize(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nsSize& aSize, PRBool aIsHorizontal = PR_TRUE);
- nsresult GetMinRowSize(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nsSize& aSize, PRBool aIsHorizontal = PR_TRUE);
- nsresult GetMaxRowSize(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nsSize& aSize, PRBool aIsHorizontal = PR_TRUE);
- nsresult GetRowFlex(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nscoord& aSize, PRBool aIsHorizontal = PR_TRUE);
-
- nsresult GetPrefRowHeight(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nscoord& aHeight, PRBool aIsHorizontal = PR_TRUE);
- nsresult GetMinRowHeight(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nscoord& aHeight, PRBool aIsHorizontal = PR_TRUE);
- nsresult GetMaxRowHeight(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, nscoord& aHeight, PRBool aIsHorizontal = PR_TRUE);
- void GetRowOffsets(nsBoxLayoutState& aState, PRInt32 aIndex, nscoord& aTop, nscoord& aBottom, PRBool aIsHorizontal = PR_TRUE);
-
- void RowChildIsDirty(nsBoxLayoutState& aBoxLayoutState, PRInt32 aRowIndex, PRInt32 aColumnIndex, PRBool aIsHorizontal = PR_TRUE);
- void RowIsDirty(nsBoxLayoutState& aBoxLayoutState, PRInt32 aIndex, PRBool aIsHorizontal = PR_TRUE);
- void RowAddedOrRemoved(nsBoxLayoutState& aBoxLayoutState, PRInt32 aIndex, PRBool aIsHorizontal = PR_TRUE);
- void CellAddedOrRemoved(nsBoxLayoutState& aBoxLayoutState, PRInt32 aIndex, PRBool aIsHorizontal = PR_TRUE);
- void DirtyRows(nsIBox* aRowBox, nsBoxLayoutState& aState);
- #ifdef DEBUG_grid
- void PrintCellMap();
- #endif
- PRInt32 GetExtraColumnCount(PRBool aIsHorizontal = PR_TRUE);
- PRInt32 GetExtraRowCount(PRBool aIsHorizontal = PR_TRUE);
-
- // accessors
- void SetBox(nsIBox* aBox) { mBox = aBox; }
- nsIBox* GetBox() { return mBox; }
- nsIBox* GetRowBox() { return mRowBox; }
- nsIBox* GetColumnBox() { return mColumnBox; }
- nsGridRow* GetColumns();
- nsGridRow* GetRows();
- PRInt32 GetRowCount(PRInt32 aIsHorizontal = PR_TRUE);
- PRInt32 GetColumnCount(PRInt32 aIsHorizontal = PR_TRUE);
-
- static nsIBox* GetScrolledBox(nsIBox* aChild);
- static nsIBox* GetScrollBox(nsIBox* aChild);
- void GetFirstAndLastRow(nsBoxLayoutState& aState,
- PRInt32& aFirstIndex,
- PRInt32& aLastIndex,
- nsGridRow*& aFirstRow,
- nsGridRow*& aLastRow,
- PRBool aIsHorizontal);
-
- private:
- void GetPartFromBox(nsIBox* aBox, nsIGridPart** aPart);
- void GetBoxTotalMargin(nsIBox* aBox, nsMargin& aMargin, PRBool aIsHorizontal = PR_TRUE);
-
- void FreeMap();
- void FindRowsAndColumns(nsIBox** aRows, nsIBox** aColumns);
- void BuildRows(nsIBox* aBox, PRBool aSize, nsGridRow** aColumnsRows, PRBool aIsHorizontal = PR_TRUE);
- void BuildCellMap(PRInt32 aRows, PRInt32 aColumns, nsGridCell** aCells);
- void PopulateCellMap(nsGridRow* aRows, nsGridRow* aColumns, PRInt32 aRowCount, PRInt32 aColumnCount, PRBool aIsHorizontal = PR_TRUE);
- void CountRowsColumns(nsIBox* aBox, PRInt32& aRowCount, PRInt32& aComputedColumnCount);
- void SetLargestSize(nsSize& aSize, nscoord aHeight, PRBool aIsHorizontal = PR_TRUE);
- void SetSmallestSize(nsSize& aSize, nscoord aHeight, PRBool aIsHorizontal = PR_TRUE);
- PRBool IsGrid(nsIBox* aBox);
-
- // the box that implement the <grid> tag
- nsIBox* mBox;
-
- // an array of row object
- nsGridRow* mRows;
-
- // an array of columns objects.
- nsGridRow* mColumns;
-
- // the first in the <grid> that implements the <rows> tag.
- nsIBox* mRowBox;
-
- // the first in the <grid> that implements the <columns> tag.
- nsIBox* mColumnBox;
-
- // a flag that is false tells us to rebuild the who grid
- PRBool mNeedsRebuild;
-
- // number of rows and columns as defined by the XUL
- PRInt32 mRowCount;
- PRInt32 mColumnCount;
-
- // number of rows and columns that are implied but not
- // explicitly defined int he XUL
- PRInt32 mExtraRowCount;
- PRInt32 mExtraColumnCount;
-
- // x,y array of cells in the rows and columns
- nsGridCell* mCellMap;
-
- // a flag that when true suppresses all other MarkDirties. This
- // prevents lots of extra work being done.
- PRBool mMarkingDirty;
- };
-
- #endif
-
-