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layout/xul/nsSprocketLayout.h@8bccb770b82d (annotated)

layout/xul/nsSprocketLayout.h

Wed, 31 Dec 2014 13:27:57 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 13:27:57 +0100

branch

TOR_BUG_3246

changeset 6

8bccb770b82d

permissions

-rw-r--r--

Ignore runtime configuration files generated during quality assurance.

michael@0	1	/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	#ifndef nsSprocketLayout_h___
michael@0	7	#define nsSprocketLayout_h___
michael@0	8
michael@0	9	#include "mozilla/Attributes.h"
michael@0	10	#include "nsBoxLayout.h"
michael@0	11	#include "nsCOMPtr.h"
michael@0	12	#include "nsIFrame.h"
michael@0	13
michael@0	14	class nsBoxSize
michael@0	15	{
michael@0	16	public:
michael@0	17
michael@0	18	nsBoxSize();
michael@0	19
michael@0	20	nscoord pref;
michael@0	21	nscoord min;
michael@0	22	nscoord max;
michael@0	23	nscoord flex;
michael@0	24	nscoord left;
michael@0	25	nscoord right;
michael@0	26	bool collapsed;
michael@0	27	bool bogus;
michael@0	28
michael@0	29	nsBoxSize* next;
michael@0	30
michael@0	31	void* operator new(size_t sz, nsBoxLayoutState& aState) CPP_THROW_NEW;
michael@0	32	void operator delete(void* aPtr, size_t sz);
michael@0	33	};
michael@0	34
michael@0	35	class nsComputedBoxSize
michael@0	36	{
michael@0	37	public:
michael@0	38	nsComputedBoxSize();
michael@0	39
michael@0	40	nscoord size;
michael@0	41	bool valid;
michael@0	42	bool resized;
michael@0	43	nsComputedBoxSize* next;
michael@0	44
michael@0	45	void* operator new(size_t sz, nsBoxLayoutState& aState) CPP_THROW_NEW;
michael@0	46	void operator delete(void* aPtr, size_t sz);
michael@0	47	};
michael@0	48
michael@0	49	#define GET_WIDTH(size, isHorizontal) (isHorizontal ? size.width : size.height)
michael@0	50	#define GET_HEIGHT(size, isHorizontal) (isHorizontal ? size.height : size.width)
michael@0	51	#define GET_X(size, isHorizontal) (isHorizontal ? size.x : size.y)
michael@0	52	#define GET_Y(size, isHorizontal) (isHorizontal ? size.y : size.x)
michael@0	53	#define GET_COORD(aX, aY, isHorizontal) (isHorizontal ? aX : aY)
michael@0	54
michael@0	55	#define SET_WIDTH(size, coord, isHorizontal) if (isHorizontal) { (size).width = (coord); } else { (size).height = (coord); }
michael@0	56	#define SET_HEIGHT(size, coord, isHorizontal) if (isHorizontal) { (size).height = (coord); } else { (size).width = (coord); }
michael@0	57	#define SET_X(size, coord, isHorizontal) if (isHorizontal) { (size).x = (coord); } else { (size).y = (coord); }
michael@0	58	#define SET_Y(size, coord, isHorizontal) if (isHorizontal) { (size).y = (coord); } else { (size).x = (coord); }
michael@0	59
michael@0	60	#define SET_COORD(aX, aY, coord, isHorizontal) if (isHorizontal) { aX = (coord); } else { aY = (coord); }
michael@0	61
michael@0	62	nsresult NS_NewSprocketLayout(nsIPresShell* aPresShell, nsCOMPtr<nsBoxLayout>& aNewLayout);
michael@0	63
michael@0	64	class nsSprocketLayout : public nsBoxLayout {
michael@0	65
michael@0	66	public:
michael@0	67
michael@0	68	friend nsresult NS_NewSprocketLayout(nsIPresShell* aPresShell, nsCOMPtr<nsBoxLayout>& aNewLayout);
michael@0	69	static void Shutdown();
michael@0	70
michael@0	71	NS_IMETHOD Layout(nsIFrame* aBox, nsBoxLayoutState& aState) MOZ_OVERRIDE;
michael@0	72
michael@0	73	virtual nsSize GetPrefSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0	74	virtual nsSize GetMinSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0	75	virtual nsSize GetMaxSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0	76	virtual nscoord GetAscent(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) MOZ_OVERRIDE;
michael@0	77
michael@0	78	nsSprocketLayout();
michael@0	79
michael@0	80	static bool IsHorizontal(nsIFrame* aBox);
michael@0	81
michael@0	82	static void SetLargestSize(nsSize& aSize1, const nsSize& aSize2, bool aIsHorizontal);
michael@0	83	static void SetSmallestSize(nsSize& aSize1, const nsSize& aSize2, bool aIsHorizontal);
michael@0	84
michael@0	85	static void AddLargestSize(nsSize& aSize, const nsSize& aSizeToAdd, bool aIsHorizontal);
michael@0	86	static void AddSmallestSize(nsSize& aSize, const nsSize& aSizeToAdd, bool aIsHorizontal);
michael@0	87	static void AddCoord(nscoord& aCoord, nscoord aCoordToAdd);
michael@0	88
michael@0	89	protected:
michael@0	90
michael@0	91
michael@0	92	void ComputeChildsNextPosition(nsIFrame* aBox,
michael@0	93	const nscoord& aCurX,
michael@0	94	const nscoord& aCurY,
michael@0	95	nscoord& aNextX,
michael@0	96	nscoord& aNextY,
michael@0	97	const nsRect& aChildSize);
michael@0	98
michael@0	99	void ChildResized(nsIFrame* aBox,
michael@0	100	nsBoxLayoutState& aState,
michael@0	101	nsIFrame* aChild,
michael@0	102	nsBoxSize* aChildBoxSize,
michael@0	103	nsComputedBoxSize* aChildComputedBoxSize,
michael@0	104	nsBoxSize* aBoxSizes,
michael@0	105	nsComputedBoxSize* aComputedBoxSizes,
michael@0	106	const nsRect& aChildLayoutRect,
michael@0	107	nsRect& aChildActualRect,
michael@0	108	nsRect& aContainingRect,
michael@0	109	int32_t aFlexes,
michael@0	110	bool& aFinished);
michael@0	111
michael@0	112	void AlignChildren(nsIFrame* aBox,
michael@0	113	nsBoxLayoutState& aState);
michael@0	114
michael@0	115	virtual void ComputeChildSizes(nsIFrame* aBox,
michael@0	116	nsBoxLayoutState& aState,
michael@0	117	nscoord& aGivenSize,
michael@0	118	nsBoxSize* aBoxSizes,
michael@0	119	nsComputedBoxSize*& aComputedBoxSizes);
michael@0	120
michael@0	121
michael@0	122	virtual void PopulateBoxSizes(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState,
michael@0	123	nsBoxSize*& aBoxSizes, nscoord& aMinSize,
michael@0	124	nscoord& aMaxSize, int32_t& aFlexes);
michael@0	125
michael@0	126	virtual void InvalidateComputedSizes(nsComputedBoxSize* aComputedBoxSizes);
michael@0	127
michael@0	128	virtual bool GetDefaultFlex(int32_t& aFlex);
michael@0	129
michael@0	130	virtual void GetFrameState(nsIFrame* aBox, nsFrameState& aState);
michael@0	131
michael@0	132	private:
michael@0	133
michael@0	134
michael@0	135	// because the sprocket layout manager has no instance variables. We
michael@0	136	// can make a static one and reuse it everywhere.
michael@0	137	static nsBoxLayout* gInstance;
michael@0	138
michael@0	139	};
michael@0	140
michael@0	141	#endif
michael@0	142