A cursor for iterating the theme bitmap. More...

#include <Theme.h>

Public Member Functions
	FlowPacker (int width)

	~FlowPacker ()

void	GetNextPosition (int xSize, int ySize)

void	SetNewGroup (int iGroupSize)

void	SetColourGroup ()

wxRect	Rect ()

wxRect	RectInner ()

void	RectMid (int &x, int &y)

Public Attributes
int	mFlags = resFlagPaired

int	mxPos = 0

int	myPos = 0

int	myHeight = 0

int	mBorderWidth = 1

Private Attributes
int	iImageGroupSize = 1

int	iImageGroupIndex = -1

int	mOldFlags = resFlagPaired

int	myPosBase = 0

int	mxCacheWidth = 0

int	mComponentWidth = 0

int	mComponentHeight = 0

Detailed Description

A cursor for iterating the theme bitmap.

Packs rectangular boxes into a rectangle, using simple first fit.

This class is currently used by Theme to pack its images into the image cache. Perhaps someday we will improve FlowPacker and make it more flexible, and use it for toolbar and window layouts too.

Definition at line 69 of file Theme.h.

Constructor & Destructor Documentation

◆ FlowPacker()

FlowPacker::FlowPacker ( int width )

explicit

Definition at line 469 of file Theme.cpp.

   : mxCacheWidth{ width }
{
   SetNewGroup(1);
}

References SetNewGroup().

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◆ ~FlowPacker()

FlowPacker::~FlowPacker ( )

inline

Definition at line 73 of file Theme.h.

73{}

Member Function Documentation

◆ GetNextPosition()

void FlowPacker::GetNextPosition	(	int	xSize,
		int	ySize
	)

Definition at line 496 of file Theme.cpp.

{
   xSize += 2*mBorderWidth;
   ySize += 2*mBorderWidth;
   // if the height has increased, then we are on a NEW group.
   if(( ySize > myHeight )||(((mFlags ^ mOldFlags )& ~resFlagSkip)!=0))
   {
      SetNewGroup( ((mFlags & resFlagPaired)!=0) ? 2 : 1 );
      myHeight = ySize;
//      mFlags &= ~resFlagNewLine;
//      mOldFlags = mFlags;
   }
 
   iImageGroupIndex++;
   if( iImageGroupIndex == iImageGroupSize )
   {
      iImageGroupIndex = 0;
      mxPos += mComponentWidth;
   }
 
   if(mxPos > (mxCacheWidth - xSize ))
   {
      SetNewGroup(iImageGroupSize);
      iImageGroupIndex++;
      myHeight = ySize;
   }
   myPos = myPosBase + iImageGroupIndex * myHeight;
 
   mComponentWidth = xSize;
   mComponentHeight = ySize;
}

References iImageGroupIndex, iImageGroupSize, mBorderWidth, mComponentHeight, mComponentWidth, mFlags, mOldFlags, mxCacheWidth, mxPos, myHeight, myPos, myPosBase, resFlagPaired, resFlagSkip, and SetNewGroup().

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◆ Rect()

wxRect FlowPacker::Rect ( )

Definition at line 528 of file Theme.cpp.

{
   return wxRect( mxPos, myPos, mComponentWidth, mComponentHeight);
}

References mComponentHeight, mComponentWidth, mxPos, and myPos.

Referenced by RectInner().

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◆ RectInner()

wxRect FlowPacker::RectInner ( )

Definition at line 533 of file Theme.cpp.

{
   return Rect().Deflate( mBorderWidth, mBorderWidth );
}

References mBorderWidth, and Rect().

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◆ RectMid()

void FlowPacker::RectMid	(	int &	x,
		int &	y
	)

Definition at line 538 of file Theme.cpp.

{
   x = mxPos + mComponentWidth/2;
   y = myPos + mComponentHeight/2;
}

References mComponentHeight, mComponentWidth, mxPos, and myPos.

◆ SetColourGroup()

void FlowPacker::SetColourGroup ( )

Definition at line 485 of file Theme.cpp.

{
   myPosBase = 750;
   mxPos =0;
   mOldFlags = mFlags;
   iImageGroupSize = 1;
   iImageGroupIndex = -1;
   mComponentWidth=0;
   myHeight = 11;
}

References iImageGroupIndex, iImageGroupSize, mComponentWidth, mFlags, mOldFlags, mxPos, myHeight, and myPosBase.

◆ SetNewGroup()

void FlowPacker::SetNewGroup ( int iGroupSize )

Definition at line 475 of file Theme.cpp.

{
   myPosBase +=myHeight * iImageGroupSize;
   mxPos =0;
   mOldFlags = mFlags;
   iImageGroupSize = iGroupSize;
   iImageGroupIndex = -1;
   mComponentWidth=0;
}