mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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271 lines
9.0 KiB
C++
271 lines
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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// YY need to pass isMultiple before create called
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#include "nsBoxFrame.h"
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#include "nsCSSRendering.h"
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#include "nsStyleContext.h"
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#include "nsDisplayList.h"
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class nsGroupBoxFrame : public nsBoxFrame {
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public:
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nsGroupBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext):
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nsBoxFrame(aShell, aContext) {}
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NS_IMETHOD GetBorderAndPadding(nsMargin& aBorderAndPadding);
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NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists);
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const {
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return MakeFrameName(NS_LITERAL_STRING("GroupBoxFrame"), aResult);
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}
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#endif
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void PaintBorderBackground(nsIRenderingContext& aRenderingContext,
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nsPoint aPt, const nsRect& aDirtyRect);
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// make sure we our kids get our orient and align instead of us.
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// our child box has no content node so it will search for a parent with one.
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// that will be us.
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virtual void GetInitialOrientation(PRBool& aHorizontal) { aHorizontal = PR_FALSE; }
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virtual PRBool GetInitialHAlignment(Halignment& aHalign) { aHalign = hAlign_Left; return PR_TRUE; }
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virtual PRBool GetInitialVAlignment(Valignment& aValign) { aValign = vAlign_Top; return PR_TRUE; }
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virtual PRBool GetInitialAutoStretch(PRBool& aStretch) { aStretch = PR_TRUE; return PR_TRUE; }
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nsIBox* GetCaptionBox(nsPresContext* aPresContext, nsRect& aCaptionRect);
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};
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/*
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class nsGroupBoxInnerFrame : public nsBoxFrame {
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public:
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nsGroupBoxInnerFrame(nsIPresShell* aShell, nsStyleContext* aContext):
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nsBoxFrame(aShell, aContext) {}
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsString& aResult) const {
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return MakeFrameName("GroupBoxFrameInner", aResult);
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}
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#endif
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// we are always flexible
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virtual PRBool GetDefaultFlex(PRInt32& aFlex) { aFlex = 1; return PR_TRUE; }
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};
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*/
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nsIFrame*
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NS_NewGroupBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsGroupBoxFrame(aPresShell, aContext);
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}
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class nsDisplayXULGroupBackground : public nsDisplayItem {
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public:
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nsDisplayXULGroupBackground(nsGroupBoxFrame* aFrame) : nsDisplayItem(aFrame) {
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MOZ_COUNT_CTOR(nsDisplayXULGroupBackground);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayXULGroupBackground() {
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MOZ_COUNT_DTOR(nsDisplayXULGroupBackground);
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}
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#endif
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virtual nsIFrame* HitTest(nsDisplayListBuilder* aBuilder, nsPoint aPt,
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HitTestState* aState) { return mFrame; }
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virtual void Paint(nsDisplayListBuilder* aBuilder, nsIRenderingContext* aCtx,
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const nsRect& aDirtyRect);
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NS_DISPLAY_DECL_NAME("XULGroupBackground")
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};
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void
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nsDisplayXULGroupBackground::Paint(nsDisplayListBuilder* aBuilder,
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nsIRenderingContext* aCtx, const nsRect& aDirtyRect)
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{
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static_cast<nsGroupBoxFrame*>(mFrame)->
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PaintBorderBackground(*aCtx, aBuilder->ToReferenceFrame(mFrame), aDirtyRect);
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}
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NS_IMETHODIMP
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nsGroupBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists)
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{
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// Paint our background and border
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if (IsVisibleForPainting(aBuilder)) {
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nsresult rv = aLists.BorderBackground()->AppendNewToTop(new (aBuilder)
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nsDisplayXULGroupBackground(this));
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NS_ENSURE_SUCCESS(rv, rv);
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rv = DisplayOutline(aBuilder, aLists);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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return BuildDisplayListForChildren(aBuilder, aDirtyRect, aLists);
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// REVIEW: Debug borders now painted by nsFrame::BuildDisplayListForChild
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}
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void
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nsGroupBoxFrame::PaintBorderBackground(nsIRenderingContext& aRenderingContext,
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nsPoint aPt, const nsRect& aDirtyRect) {
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PRIntn skipSides = 0;
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const nsStyleBorder* borderStyleData = GetStyleBorder();
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const nsStylePadding* paddingStyleData = GetStylePadding();
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const nsMargin& border = borderStyleData->GetBorder();
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nscoord yoff = 0;
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nsPresContext* presContext = PresContext();
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nsRect groupRect;
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nsIBox* groupBox = GetCaptionBox(presContext, groupRect);
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if (groupBox) {
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// if the border is smaller than the legend. Move the border down
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// to be centered on the legend.
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nsMargin groupMargin;
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groupBox->GetStyleMargin()->GetMargin(groupMargin);
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groupRect.Inflate(groupMargin);
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if (border.top < groupRect.height)
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yoff = (groupRect.height - border.top)/2 + groupRect.y;
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}
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nsRect rect(aPt.x, aPt.y + yoff, mRect.width, mRect.height - yoff);
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groupRect += aPt;
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nsCSSRendering::PaintBackground(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyleData,
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*paddingStyleData, PR_FALSE);
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if (groupBox) {
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// we should probably use PaintBorderEdges to do this but for now just use clipping
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// to achieve the same effect.
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// draw left side
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nsRect clipRect(rect);
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clipRect.width = groupRect.x - rect.x;
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clipRect.height = border.top;
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyleData, mStyleContext, skipSides);
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aRenderingContext.PopState();
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// draw right side
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clipRect = rect;
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clipRect.x = groupRect.XMost();
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clipRect.width = rect.XMost() - groupRect.XMost();
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clipRect.height = border.top;
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyleData, mStyleContext, skipSides);
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aRenderingContext.PopState();
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// draw bottom
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clipRect = rect;
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clipRect.y += border.top;
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clipRect.height = mRect.height - (yoff + border.top);
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyleData, mStyleContext, skipSides);
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aRenderingContext.PopState();
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} else {
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, nsRect(aPt, GetSize()),
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*borderStyleData, mStyleContext, skipSides);
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}
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}
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nsIBox*
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nsGroupBoxFrame::GetCaptionBox(nsPresContext* aPresContext, nsRect& aCaptionRect)
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{
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// first child is our grouped area
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nsIBox* box = GetChildBox();
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// no area fail.
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if (!box)
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return nsnull;
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// get the first child in the grouped area, that is the caption
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box = box->GetChildBox();
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// nothing in the area? fail
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if (!box)
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return nsnull;
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// now get the caption itself. It is in the caption frame.
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nsIBox* child = box->GetChildBox();
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if (child) {
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// convert to our coordinates.
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nsRect parentRect(box->GetRect());
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aCaptionRect = child->GetRect();
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aCaptionRect.x += parentRect.x;
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aCaptionRect.y += parentRect.y;
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}
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return child;
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}
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NS_IMETHODIMP
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nsGroupBoxFrame::GetBorderAndPadding(nsMargin& aBorderAndPadding)
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{
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aBorderAndPadding.SizeTo(0,0,0,0);
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return NS_OK;
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}
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