michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: // vim:cindent:ts=4:et:sw=4:
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * interface for the set of algorithms that determine column and table
michael@0:  * widths
michael@0:  */
michael@0: 
michael@0: #ifndef nsITableLayoutStrategy_h_
michael@0: #define nsITableLayoutStrategy_h_
michael@0: 
michael@0: #include "nscore.h"
michael@0: #include "nsCoord.h"
michael@0: 
michael@0: class nsRenderingContext;
michael@0: struct nsHTMLReflowState;
michael@0: 
michael@0: class nsITableLayoutStrategy
michael@0: {
michael@0: public:
michael@0:     virtual ~nsITableLayoutStrategy() {}
michael@0: 
michael@0:     /** Implement nsIFrame::GetMinWidth for the table */
michael@0:     virtual nscoord GetMinWidth(nsRenderingContext* aRenderingContext) = 0;
michael@0: 
michael@0:     /** Implement nsIFrame::GetPrefWidth for the table */
michael@0:     virtual nscoord GetPrefWidth(nsRenderingContext* aRenderingContext,
michael@0:                                  bool aComputingSize) = 0;
michael@0: 
michael@0:     /** Implement nsIFrame::MarkIntrinsicWidthsDirty for the table */
michael@0:     virtual void MarkIntrinsicWidthsDirty() = 0;
michael@0: 
michael@0:     /**
michael@0:      * Compute final column widths based on the intrinsic width data and
michael@0:      * the available width.
michael@0:      */
michael@0:     virtual void ComputeColumnWidths(const nsHTMLReflowState& aReflowState) = 0;
michael@0: 
michael@0:     /**
michael@0:      * Return the type of table layout strategy, without the cost of
michael@0:      * a virtual function call
michael@0:      */
michael@0:     enum Type { Auto, Fixed };
michael@0:     Type GetType() const { return mType; }
michael@0: 
michael@0: protected:
michael@0:     nsITableLayoutStrategy(Type aType) : mType(aType) {}
michael@0: private:
michael@0:     Type mType;
michael@0: };
michael@0: 
michael@0: #endif /* !defined(nsITableLayoutStrategy_h_) */