зеркало из https://github.com/mozilla/gecko-dev.git
109 строки
4.0 KiB
C++
109 строки
4.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsLeafFrame.h"
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#include "nsIStyleContext.h"
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#include "nsCSSRendering.h"
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nsLeafFrame::nsLeafFrame(nsIContent* aContent, nsIFrame* aParentFrame)
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: nsFrame(aContent, aParentFrame)
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{
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}
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nsLeafFrame::~nsLeafFrame()
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{
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}
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NS_METHOD nsLeafFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect)
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{
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nsStyleDisplay* disp =
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(nsStyleDisplay*)mStyleContext->GetData(eStyleStruct_Display);
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if (disp->mVisible) {
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nsStyleColor* myColor =
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(nsStyleColor*)mStyleContext->GetData(eStyleStruct_Color);
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nsStyleSpacing* mySpacing =
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(nsStyleSpacing*)mStyleContext->GetData(eStyleStruct_Spacing);
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
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aDirtyRect, mRect, *myColor);
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nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this,
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aDirtyRect, mRect, *mySpacing, 0);
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}
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return NS_OK;
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}
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NS_METHOD nsLeafFrame::Reflow(nsIPresContext* aPresContext,
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nsReflowMetrics& aDesiredSize,
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const nsReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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NS_PRECONDITION(mState & NS_FRAME_IN_REFLOW, "frame is not in reflow");
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// XXX add in code to check for width/height being set via css
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// and if set use them instead of calling GetDesiredSize.
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GetDesiredSize(aPresContext, aReflowState, aDesiredSize);
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AddBordersAndPadding(aPresContext, aDesiredSize);
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if (nsnull != aDesiredSize.maxElementSize) {
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aDesiredSize.maxElementSize->width = aDesiredSize.width;
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aDesiredSize.maxElementSize->height = aDesiredSize.height;
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}
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aStatus = NS_FRAME_COMPLETE;
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return NS_OK;
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}
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// XXX how should border&padding effect baseline alignment?
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// => descent = borderPadding.bottom for example
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void nsLeafFrame::AddBordersAndPadding(nsIPresContext* aPresContext,
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nsReflowMetrics& aDesiredSize)
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{
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nsStyleSpacing* space =
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(nsStyleSpacing*)mStyleContext->GetData(eStyleStruct_Spacing);
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nsMargin borderPadding;
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space->CalcBorderPaddingFor(this, borderPadding);
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aDesiredSize.width += borderPadding.left + borderPadding.right;
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aDesiredSize.height += borderPadding.top + borderPadding.bottom;
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aDesiredSize.ascent = aDesiredSize.height;
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aDesiredSize.descent = 0;
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}
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void nsLeafFrame::GetInnerArea(nsIPresContext* aPresContext,
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nsRect& aInnerArea) const
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{
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nsStyleSpacing* space =
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(nsStyleSpacing*)mStyleContext->GetData(eStyleStruct_Spacing);
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nsMargin borderPadding;
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space->CalcBorderPaddingFor(this, borderPadding);
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aInnerArea.x = borderPadding.left;
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aInnerArea.y = borderPadding.top;
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aInnerArea.width = mRect.width -
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(borderPadding.left + borderPadding.right);
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aInnerArea.height = mRect.height -
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(borderPadding.top + borderPadding.bottom);
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}
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NS_METHOD nsLeafFrame::CreateContinuingFrame(nsIPresContext* aPresContext,
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nsIFrame* aParent,
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nsIFrame*& aContinuingFrame)
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{
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NS_NOTREACHED("Attempt to split the unsplittable");
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aContinuingFrame = nsnull;
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return NS_OK;
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}
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