oilcoord.cpp

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// $Id: oilcoord.cpp 1282 2006-06-09 09:46:49Z alex $
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               Xara LX, a vector drawing and manipulation program.
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 */


#include "camtypes.h"

//#include "oilcoord.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "node.h"  - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "wrkcoord.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "rect.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "document.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "paper.h"
//#include "xmatrix.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ensure.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "spread.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "chapter.h"
//#include "view.h" - in camtypes.h [AUTOMATICALLY REMOVED]

DECLARE_SOURCE("$Revision: 1282 $");




/*********************************************************************************************
>   OilCoord::OilCoord(MILLIPOINT xx, MILLIPOINT yy)

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27th August 1993
    Inputs:     Two INT32s (measured in millipoints).
    Outputs:    -
    Returns:    -
    Purpose:    Constructs an OIL coordinate.
    Errors:     -
    Scope:      Public

**********************************************************************************************/ 

OilCoord::OilCoord(MILLIPOINT xx, MILLIPOINT yy) : Coord(xx, yy)
{
}









/********************************************************************************************

>   WinCoord OilCoord::ToWin(View *pView) const;

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    5/8/93
    Inputs:     The view we are converting to.
    Purpose:    Converts an OilCoord to a WinCoord.

********************************************************************************************/

WinCoord OilCoord::ToWin(View *pView) const
{
    // Note that we have to negate the y coord, because Windows starts with 0 at the top
    // and then positive coordinates in a downward direction, i.e. the opposite to
    // Camelot's coordinate systems.

    // NB. More importantly, we add 1 to the y coord, because the flipping of the y axis
    //     causes a misalignment in the pixel systems.  This is because Camelot coords
    //     specify the bottom left of the pixel, whereas GDI coords specify the top-left.
    //     (See coord.doc for more details)

//  return WinCoord(INT32(MPtoPixel(x, xPixelScale)), -INT32(MPtoPixel(y, yPixelScale) + 1));

    // New info: (Phil, 17/11/94)
    // The one pixel bodge is no longer required because the pixel model has been modified
    // so that pixel coordinates are in the centres of pixels, not on any edge.
    // This allows coordinate systems to be negated without any extra work.

    // Get pixel size for this view
    FIXED16 PixelWidth, PixelHeight;
    pView->GetPixelSize(&PixelWidth, &PixelHeight);

    // Do the conversion and return the results.
    return WinCoord(INT32(MPtoPixel(x, PixelWidth)), -INT32(MPtoPixel(y, PixelHeight) ));
}


/********************************************************************************************

>   WinCoord OilCoord::ToWin( const INT32 dpi ) const;

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/11/93
    Inputs:     Transform Matrix.
                dpi the value of the destination dpi rather than assuming screen dpi 
    Outputs:    None
    Returns:    None.
    Purpose:    Same as above in that it converts an OilCoord to a WinCoord but instead of
                assuming screen dpi, as in using x/yPixelScale, it uses the specified dpi
                to work out the transformation.
    Errors:     None.

********************************************************************************************/

//WinCoord OilCoord::ToWin( const INT32 dpi ) const
//{
    // See above ToWin routine for conversion comments
    // Work out our x and y pixel scaling factors for the specified destination dpi
//  FIXED16 PixScale = 72000.0/dpi;

//  return WinCoord(INT32(MPtoPixel(x, PixScale)), -INT32(MPtoPixel(y, PixScale) ));
//}

/********************************************************************************************

>   WinCoord OilCoord::ToWin( const double dpi ) const;

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/11/93
    Inputs:     Transform Matrix.
                dpi the value of the destination dpi rather than assuming screen dpi 
    Outputs:    None
    Returns:    None.
    Purpose:    Same as above in that it converts an OilCoord to a WinCoord but instead of
                assuming screen dpi, as in using x/yPixelScale, it uses the specified dpi
                to work out the transformation.
                Different to above in that it takes a double dpi instead of a INT32 dpi. Now
                superceeds the above. Changed 12/12/95.
    Errors:     None.

********************************************************************************************/

WinCoord OilCoord::ToWin( const double dpi ) const
{
    // See above ToWin routine for conversion comments
    // Work out our x and y pixel scaling factors for the specified destination dpi
    FIXED16 PixScale = 72000.0/dpi;

    return WinCoord(INT32(MPtoPixel(x, PixScale)), -INT32(MPtoPixel(y, PixScale) ));
}




/********************************************************************************************

>   WorkCoord OilCoord::ToWork(const WorkCoord& ScrollOffset) const

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    5/8/93
    Inputs:     Scroll offset.
    Outputs:    None
    Returns:    None.
    Purpose:    Converts an OilCoord to a WorkCoord.
    Errors:     None.

********************************************************************************************/

WorkCoord OilCoord::ToWork(const WorkCoord& ScrollOffset) const
{
    // Add the scroll offsets to get workarea values...
    return WorkCoord(ScrollOffset.x + x, ScrollOffset.y + y);
}




/********************************************************************************************

>   void OilCoord::ToWork(const WorkCoord& scrollOffset, WorkCoord* result ) const

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    5/8/93
    Inputs:     Scroll offset.
    Outputs:    None
    Returns:    None.
    Purpose:    Converts an OilCoord to a WorkCoord.
    Errors:     None.

********************************************************************************************/
/*
Technical notes:

********************************************************************************************/

void OilCoord::ToWork(const WorkCoord& scrollOffset, WorkCoord* result ) const
{
// Implementation...
    // Then add the scroll offsets to get workarea values...
    result->x = scrollOffset.x + x; 
    result->y = scrollOffset.y + y;
}




/********************************************************************************************

>   DocCoord OilCoord::ToDoc(const Spread* pSpread, View *pView) const

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    22/12/93
    Inputs:     pSpread - The spread that we know that the oil coord is in
                View - the view to use when converting.
    Returns:    This coordinate as measured in DocCoords
    Purpose:    Convert an OilCoord to a DocCoord

********************************************************************************************/

DocCoord OilCoord::ToDoc(const Spread* pSpread, View* pView) const
{
    DocCoord    Return;
    WorkCoord   Point((XLONG)(this->x), (XLONG)(this->y));

    // First, convert the OilCoord into a LogicalCoord...
    FIXED16 ViewScale = pView->GetViewScale();
    WorkCoord ScrollOffset = pView->GetScrollOffsets();

    Point.x = MakeXLong( double(Point.x + ScrollOffset.x) / ViewScale.MakeDouble());
    Point.y = MakeXLong( double(Point.y + ScrollOffset.y) / ViewScale.MakeDouble());

    // Find the parent chapter
    Chapter* pChapter = (Chapter*) pSpread->FindParent();
    ENSURE( pChapter != NULL, "Spread had no parent" );
    ENSURE( pChapter->IsKindOf(CC_RUNTIME_CLASS(Chapter)), "Chapter is not a chapter" );

    // Find the depth of the chapter
    XLONG ChapDepth = pChapter->GetChapterDepth();

    // Find the chapters position
    DocCoord ChapterPos;
    ChapterPos.x = pChapter->GetPasteboardRect(TRUE, pView).lo.x; 
    ChapterPos.y = pChapter->GetPasteboardRect(TRUE, pView).hi.y;

    // Build the return value up
    Return.x = Point.x + ChapterPos.x;
    Return.y = Point.y + MakeXLong(ChapterPos.y) + ChapDepth;

    return (Return);
    
}

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