/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape 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/NPL/ * * 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.org 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): * * 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 NPL, 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 NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #ifndef nsTableColGroupFrame_h__ #define nsTableColGroupFrame_h__ #include "nscore.h" #include "nsHTMLContainerFrame.h" #include "nsTableColFrame.h" class nsTableColFrame; class nsTableFrame; enum nsTableColGroupType { eColGroupContent = 0, // there is real col group content associated eColGroupAnonymousCol = 1, // the result of a col eColGroupAnonymousCell = 2 // the result of a cell alone }; /** * nsTableColGroupFrame * data structure to maintain information about a single table cell's frame * * @author sclark */ class nsTableColGroupFrame : public nsHTMLContainerFrame { public: // default constructor supplied by the compiler /** instantiate a new instance of nsTableColGroupFrame. * @param aResult the new object is returned in this out-param * * @return NS_OK if the frame was properly allocated, otherwise an error code */ friend nsresult NS_NewTableColGroupFrame(nsIPresShell* aPresShell, nsIFrame** aResult); NS_IMETHOD Init(nsIPresContext* aPresContext, nsIContent* aContent, nsIFrame* aParent, nsIStyleContext* aContext, nsIFrame* aPrevInFlow); NS_IMETHOD SetInitialChildList(nsIPresContext* aPresContext, nsIAtom* aListName, nsIFrame* aChildList); nsTableColGroupType GetType() const; void SetType(nsTableColGroupType aType); static PRBool GetLastRealColGroup(nsTableFrame* aTableFrame, nsIFrame** aLastColGroup); static nsTableColGroupFrame* FindParentForAppendedCol(nsTableFrame* aTableFrame, nsTableColType aColType); NS_IMETHOD AppendFrames(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aFrameList); NS_IMETHOD InsertFrames(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aPrevFrame, nsIFrame* aFrameList); NS_IMETHOD RemoveFrame(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aOldFrame); void RemoveChild(nsIPresContext& aPresContext, nsTableColFrame& aLastChild, PRBool aResetColIndices); void RemoveChildrenAtEnd(nsIPresContext& aPresContext, PRInt32 aNumChildrenToRemove); NS_IMETHOD Paint(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsFramePaintLayer aWhichLayer, PRUint32 aFlags = 0); NS_IMETHOD GetFrameForPoint(nsIPresContext* aPresContext, const nsPoint& aPoint, nsFramePaintLayer aWhichLayer, nsIFrame** aFrame); /** reflow of a column group is a trivial matter of reflowing * the col group's children (columns), and setting this frame * to 0-size. Since tables are row-centric, column group frames * don't play directly in the rendering game. They do however * maintain important state that effects table and cell layout. */ NS_IMETHOD Reflow(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus); /** * Get the "type" of the frame * * @see nsLayoutAtoms::tableColGroupFrame */ NS_IMETHOD GetFrameType(nsIAtom** aType) const; NS_IMETHOD AddColsToTable(nsIPresContext& aPresContext, PRInt32 aFirstColIndex, PRBool aResetSubsequentColIndices, nsIFrame* aFirstFrame, nsIFrame* aLastFrame = nsnull); #ifdef DEBUG NS_IMETHOD GetFrameName(nsAString& aResult) const; NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const; #endif /** returns the number of columns represented by this group. * if there are col children, count them (taking into account the span of each) * else, check my own span attribute. */ virtual PRInt32 GetColCount() const; virtual nsTableColFrame * GetFirstColumn(); virtual nsTableColFrame * GetNextColumn(nsIFrame *aChildFrame); virtual nsTableColFrame * GetColumnAt(PRInt32 aColIndex); virtual PRInt32 GetStartColumnIndex(); /** sets mStartColIndex to aIndex. * @return the col count * has the side effect of setting all child COL indexes */ virtual PRInt32 SetStartColumnIndex(PRInt32 aIndex); /** helper method to get the span attribute for this colgroup */ PRInt32 GetSpan(); /** helper method returns PR_TRUE if this colgroup exists without any * colgroup or col content in the table backing it. */ //PRBool IsManufactured(); void DeleteColFrame(nsIPresContext* aPresContext, nsTableColFrame* aColFrame); static nsTableColGroupFrame* GetColGroupFrameContaining(nsIPresContext* aPresContext, nsFrameList& aColGroupList, nsTableColFrame& aColFrame); nsFrameList& GetChildList(); static void ResetColIndices(nsIPresContext* aPresContext, nsIFrame* aFirstColGroup, PRInt32 aFirstColIndex, nsIFrame* aStartColFrame = nsnull); protected: nsTableColGroupFrame(); void InsertColsReflow(nsIPresContext& aPresContext, nsIPresShell& aPresShell, PRInt32 aColIndex, nsIFrame* aFirstFrame, nsIFrame* aLastFrame = nsnull); /** implement abstract method on nsHTMLContainerFrame */ virtual PRIntn GetSkipSides() const; NS_IMETHOD IncrementalReflow(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus); NS_IMETHOD IR_TargetIsMe(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus); NS_IMETHOD IR_StyleChanged(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus); NS_IMETHOD IR_TargetIsChild(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus, nsIFrame * aNextFrame); // data members PRInt32 mColCount; // the starting column index this col group represents. Must be >= 0. PRInt32 mStartColIndex; }; inline nsTableColGroupFrame::nsTableColGroupFrame() : mColCount(0), mStartColIndex(0) { SetType(eColGroupContent); } inline PRInt32 nsTableColGroupFrame::GetStartColumnIndex() { return mStartColIndex; } inline PRInt32 nsTableColGroupFrame::GetColCount() const { return mColCount; } inline nsFrameList& nsTableColGroupFrame::GetChildList() { return mFrames; } #endif