quality.cpp

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// $Id: quality.cpp 1361 2006-06-25 16:43:38Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
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LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

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=================================XARAHEADEREND============================
 */

// Quality class used for controlling rendering quality (known as WYSIWYG in ArtWorks)

/*
*/

#include "camtypes.h"
#include "qualattr.h"
//#include "ensure.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "rndrgn.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ink.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "tim.h"
//#include "attrmgr.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "layer.h"

#include "cxftags.h"
//#include "cxfdefs.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "cxfrec.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "camfiltr.h" - in camtypes.h [AUTOMATICALLY REMOVED]

// For now all GetxxxQuality fns are based on ArtWorks values. Once we are happy
// with them they should be made inline fns.

CC_IMPLEMENT_DYNCREATE(QualityAttribute, AttributeValue)
CC_IMPLEMENT_DYNCREATE(AttrQuality, NodeAttribute)

DocColour* AttrQuality::pCurrentColour = NULL;

// Give this file in memory dumps
// Declare smart memory handling in Debug builds
#define new CAM_DEBUG_NEW

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

    Preference: DefaultQuality
    Section:    Rendering
    Range:      10 to 110.
    Purpose:    The quality level to give to new views.

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

Quality Quality::DefaultQuality;



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

>   enum Quality::Line Quality::GetLineQuality() const

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Determines how lines should be rendered based on the quality. Returns
                Quality::NoLine, ThinLine or FullLine.

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

enum Quality::Line Quality::GetLineQuality() const
{
    if (QualityValue > 50 || QualityValue == QualityGuideLayer)
        return ((enum Quality::Line) FullLine);
    else if (QualityValue > 30)
        return (enum Quality::Line) ThinLine;
    else
        return (enum Quality::Line) BlackLine;
}

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

>   enum Quality::Fill Quality::GetFillQuality() const

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Determines how fills should be rendered based on the quality. Returns
                Quality::NoFill, Solid or Graduated.

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

enum Quality::Fill Quality::GetFillQuality() const
{
    if (QualityValue >= 60)
        return (enum Quality::Fill) Graduated;
    else if (QualityValue > 30)
        return (enum Quality::Fill) Solid;
    else if (QualityValue > 10)
        return (enum Quality::Fill) Bitmaps;
    else
        return (enum Quality::Fill) NoFill;
}

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

>   enum Quality::Blend Quality::GetBlendQuality() const

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Determines how Blends should be rendered based on the quality. Returns
                Quality::NoBlend, StartAndEnd or FullBlend.

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

enum Quality::Blend Quality::GetBlendQuality() const
{
    if (QualityValue <= 20)
        return (enum Quality::Blend) StartAndEnd;
    else
        return (enum Quality::Blend) FullBlend;
}

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

>   enum Quality::Transparency Quality::GetTransparencyQuality() const

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Determines how Transparencys should be rendered based on the quality. Returns
                Quality::NoTransparency, or FullTransparency. NOTE: ALWAYS NOTRANS currently.

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

enum Quality::Transparency Quality::GetTransparencyQuality() const
{
    // don't know how this is going to work yet
    return (enum Quality::Transparency) NoTransparency;
}

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

>   enum Quality::Antialias Quality::GetAntialiasQuality() const

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Determines how Antialiass should be rendered based on the quality. Returns
                Quality::NoAntialias, or FullAntialias

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

enum Quality::Antialias Quality::GetAntialiasQuality() const
{
    if (QualityValue <= 100)
        return (enum Quality::Antialias) NoAntialias;
    else
        return (enum Quality::Antialias) FullAntialias;
}

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

>   void Quality::SetDefault()

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    22/4/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Resets value to the default value, whatever that might be.
    Errors:     ENSUREs if out of range.
    Scope:      Public

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

void Quality::SetDefault()
{
    QualityValue = QUALITY_DEFAULT;
}

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

>   BOOL Quality::SetQuality(INT32 NewQuality)

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     NewQuality should be from 0 to MAX_QUALITY.
    Returns:    TRUE if changed, FALSE if out of range OR STAYED SAME.
    Purpose:    Sets numeric value for quality. You should be using this, except in very
                special situations.
    Errors:     ENSUREs if out of range.
    SeeAlso:    Quality::GetQuality

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

BOOL Quality::SetQuality(INT32 NewQuality)
{
    if ( (NewQuality < 0 || NewQuality > QUALITY_MAX) && NewQuality != QUALITY_GUIDELAYER)
    {
        ENSURE(FALSE, "Bad quality in SetQuality");
        return FALSE;
    }
    else
    {
        if (QualityValue != NewQuality)
        {
            QualityValue = NewQuality;
            return TRUE;
        }
        else
            return FALSE;                               // not an error, just 'no-change'
    }
}

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

>   INT32 Quality::GetQuality() const

    Author:     Andy_Pennell (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/4/94
    Inputs:     -
    Outputs:    -
    Returns:    Numeric value for quality.
    Purpose:    You should use the GetxxxQuality fns. Only in very special situations are
                you allowed to call this function. It was Protected to stop you from using
                it, but this has had to change for technical reasons.
                So, what does this function actually do. It tells you the numical value of
                the quality.
    SeeAlso:    Quality::SetQuality

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

INT32 Quality::GetQuality() const
{
    return QualityValue;
}


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

>   void QualityAttribute::Render(RenderRegion *pRegion)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Inputs:     pRegion - the render region to render this attribute into.
    Purpose:    Sets the quality attribute for the given render region.
    SeeAlso:    QualityAttribute; RenderStack; AttributeValue; NodeAttribute;
                QualityAttribute::Restore; QualityAttribute::SimpleCopy;
                AttributeValue::Render; AttributeValue::Restore; AttributeValue::SimpleCopy

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

void QualityAttribute::Render(RenderRegion *pRegion, BOOL Temp)
{
    pRegion->SetQuality(this, Temp);
}

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

>   void QualityAttribute::Restore(RenderRegion *pRegion, BOOL Temp)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Inputs:     pRegion - the render region to restore the attribute into.
                Temp    - TRUE if this is a temporary attribute, FALSE if it is
                          permanent (e.g. it's in a document tree).
    Purpose:    Restores the quality attribute for the given render region.
    SeeAlso:    QualityAttribute; RenderStack; AttributeValue; NodeAttribute;
                QualityAttribute::Render; QualityAttribute::SimpleCopy;
                AttributeValue::Render; AttributeValue::Restore; AttributeValue::SimpleCopy

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

void QualityAttribute::Restore(RenderRegion *pRegion, BOOL Temp)
{
    pRegion->RestoreQuality(this, Temp);
}

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

>   void QualityAttribute::SimpleCopy(AttributeValue *pValue)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Inputs:     pAttr - pointer to the AttributeValue to copy.
    Purpose:    See AttributeValue::SimpleCopy
    SeeAlso:    QualityAttribute; RenderStack; AttributeValue; NodeAttribute;
                QualityAttribute::Render; QualityAttribute::Restore;
                AttributeValue::Render; AttributeValue::Restore; AttributeValue::SimpleCopy

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

void QualityAttribute::SimpleCopy(AttributeValue *pValue)
{
    QualityValue = ((QualityAttribute *) pValue)->QualityValue;
}

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

>   BOOL QualityAttribute::Init()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Returns:    TRUE - initialised ok; FALSE if not.
    Purpose:    Registers quality attribute, and provides a default attribute.
    Errors:     Out of memory.
    SeeAlso:    AttributeManager

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

BOOL QualityAttribute::Init()
{
    // Defaults to QUALITY_DEFAULT (not surprisingly)
    QualityAttribute *pAttr = new QualityAttribute;
    if (pAttr == NULL)
        return FALSE;

    UINT32 ID = AttributeManager::RegisterDefaultAttribute(CC_RUNTIME_CLASS(NodeRenderableInk), 
                                                         pAttr);
    if (ID == ATTR_BAD_ID)
        return FALSE;
    ENSURE(ID == ATTR_QUALITY, "Incorrect ID for attribute!");
    return TRUE;
}

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

>   NodeAttribute *QualityAttribute::MakeNode()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Returns:    Pointer to the new node, or NULL if out of memory.
    Purpose:    Make a AttrQuality node from this line width attribute.
    Errors:     Out of memory
    SeeAlso:    AttributeValue::MakeNode

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

NodeAttribute *QualityAttribute::MakeNode()
{
    // Create new attribute node
    AttrQuality *pAttr = new AttrQuality();

    // Copy attribute value into the new node.
    pAttr->Value.SimpleCopy(this);

    // Return the new node
    return pAttr;
}

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

>   BOOL QualityAttribute::IsDifferent(AttributeValue *pAttr)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Purpose:    See base class version.
    Errors:     The two attributes are not of the same type.
    SeeAlso:    AttributeValue::IsDifferent

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

BOOL QualityAttribute::IsDifferent(AttributeValue *pAttr)
{
    ENSURE(GetRuntimeClass() == pAttr->GetRuntimeClass(), 
           "Different attribute types in AttributeValue::IsDifferent()");
    return ((QualityAttribute *) pAttr)->QualityValue != QualityValue;
}


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

>   AttrQuality::AttrQuality(Node* ContextNode,  
                    AttachNodeDirection Direction,  
                    BOOL Locked, 
                    BOOL Mangled,  
                    BOOL Marked, 
                    BOOL Selected    
            ): NodeAttribute(ContextNode, Direction, Locked, Mangled, Marked, Selected, TRUE)  

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Inputs:     See base class
    Purpose:    Creates a Quality Attribute.
    SeeAlso:    NodeAttribute

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

AttrQuality::AttrQuality(Node* ContextNode,  
                    AttachNodeDirection Direction,  
                    BOOL Locked, 
                    BOOL Mangled,  
                    BOOL Marked, 
                    BOOL Selected    
            ): NodeAttribute(ContextNode, Direction, Locked, Mangled, Marked, Selected)  
{                         
} 

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

>   AttrQuality::AttrQuality()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Purpose:    Default constructor for Quality Attribute class

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

AttrQuality::AttrQuality()
{
}

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

>   void AttrQuality::Render( RenderRegion* pRender)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Inputs:     pRender - the render region to render the attribute into.
    Purpose:    Renders a quality attribute.

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

void AttrQuality::Render( RenderRegion* pRender)
{
    pRender->SetQuality(&Value, FALSE);

    Layer* pLayer = (Layer*)FindParent(CC_RUNTIME_CLASS(Layer));
    if (pLayer != NULL)
    {
        // Copy layer's colour
        Colour = *(pLayer->GetGuideColour());

        // Make static reference point to this colour
        pCurrentColour = &Colour;
    }
}

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

>   Node* AttrQuality::SimpleCopy() 

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Returns:    A copy of the node, or NULL if memory runs out 
    Purpose:    This method returns a shallow copy of the node with all Node pointers NULL. 
                The function is virtual, and must be defined for all derived classes.  
    Errors:     If memory runs out when trying to copy, then ERROR is called with an out of 
                memory error and the function returns NULL. 
    Scope:      protected

********************************************************************************************/
     
Node* AttrQuality::SimpleCopy()
{
    AttrQuality* NodeCopy = new AttrQuality();
    if (NodeCopy == NULL)
        return NULL; 
    CopyNodeContents(NodeCopy);
    return NodeCopy;
} 

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

>   INT32 AttrQuality::operator==(const NodeAttribute& Attrib)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Inputs:     Atrib:  The attribute to compare, which must be an AttrQuality 
    Returns:    Non-zero if objects are equal, zero if not.
    Purpose:    A virtual comparison operator. See NodeAttribute::operator== for 
                a description of why it's required. 
    Errors:     An ENSURE failure will occur if Attrib does not have a AttrQuality 
                runtime class.
    SeeAlso:    NodeAttribute::operator==

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

INT32 AttrQuality::operator==(const NodeAttribute& Attrib)
{
    ENSURE(Attrib.IsKindOf(CC_RUNTIME_CLASS(AttrQuality)), 
        "Trying to compare two objects with different types"); 
    AttrQuality* Attr = (AttrQuality*) &Attrib;
    return (Attr->Value.QualityValue == Value.QualityValue);
} 


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

>   virtual UINT32 AttrQuality::GetAttrNameID(void)  

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Returns:    Attribute description ID
    Purpose:    Returns back a string resource ID describing the attribute

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

UINT32 AttrQuality::GetAttrNameID(void)  
{
    return (_R(IDS_QUALITY)); 
}               
                 

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

>   void AttrQuality::CopyNodeContents( AttrQuality* NodeCopy)

    Author:     Simon_Maneggio (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Outputs:    NodeCopy - A copy of this node.
    Purpose:    This method copies the node's contents to the node pointed to by NodeCopy.
    Errors:     An assertion failure will occur if NodeCopy is NULL
    Scope:      protected
                                     
********************************************************************************************/

void AttrQuality::CopyNodeContents( AttrQuality* NodeCopy)
{
    NodeAttribute::CopyNodeContents( NodeCopy );
    
    // Copy contents specific to derived class here
    NodeCopy->Value.QualityValue = Value.QualityValue;
} 



/***********************************************************************************************
>   void AttrQuality::PolyCopyNodeContents(NodeRenderable* pNodeCopy)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/12/2003
    Outputs:    -
    Purpose:    Polymorphically copies the contents of this node to another
    Errors:     An assertion failure will occur if NodeCopy is NULL
    Scope:      protected
                                     
***********************************************************************************************/

void AttrQuality::PolyCopyNodeContents(NodeRenderable* pNodeCopy)
{
    ENSURE(pNodeCopy, "Trying to copy a node's contents into a NULL node");
    ENSURE(IS_A(pNodeCopy, AttrQuality), "PolyCopyNodeContents given wrong dest node type");

    if (IS_A(pNodeCopy, AttrQuality))
        CopyNodeContents((AttrQuality*)pNodeCopy);
}



#ifdef _DEBUG

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

>   void AttrQuality::ShowDebugTreeDetails() const

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Purpose:    Displays debugging info of the tree

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

void AttrQuality::ShowDebugTreeDetails() const
{
    // Display a bit of debugging info
    // For now, we will just call the base class version
    NodeAttribute::ShowDebugTreeDetails();  
}
#endif


void AttrQuality::GetDebugDetails(StringBase* Str)
{
#ifdef _DEBUG
    NodeAttribute::GetDebugDetails( Str );

    String_256 TempStr;
    TempStr._MakeMsg( TEXT("\r\nQuality=#1%ld\r\n"), Value.QualityValue.GetQuality() );
    (*Str) += TempStr;
#endif
}


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

>   virtual UINT32 AttrQuality::GetNodeSize() const

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/04/94
    Returns:    The size of the node in bytes
    Purpose:    For finding the size of the node 
    SeeAlso:    Node::GetSubtreeSize

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

UINT32 AttrQuality::GetNodeSize() const 
{     
    return (sizeof(AttrQuality)); 
}  

//-------------------------------------------------------------------------
//-------------------------------------------------------------------------
//-------------------------------------------------------------------------

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

  > virtual BOOL AttrQuality::WritePreChildrenWeb(BaseCamelotFilter* pFilter)

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    25/7/96
    Inputs:     pFilter = ptr to the filter
    Returns:    TRUE if record is written, FALSE if not
    Purpose:    Writes the quality record to the filter.
                *** DOESN'T WRITE ANYTHING OUT IN THE WEB FORMAT ***
    SeeAlso:    -

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

BOOL AttrQuality::WritePreChildrenWeb(BaseCamelotFilter* pFilter)
{
    return FALSE;
}

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

  > virtual BOOL AttrQuality::WritePreChildrenNative(BaseCamelotFilter* pFilter)

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    25/7/96
    Inputs:     pFilter = ptr to the filter
    Returns:    TRUE if record is written, FALSE if not
    Purpose:    Writes the quality attribute record to the filter.
    SeeAlso:    -

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

BOOL AttrQuality::WritePreChildrenNative(BaseCamelotFilter* pFilter)
{
#ifdef DO_EXPORT
    ERROR2IF(pFilter == NULL,FALSE,"NULL filter param");

    BOOL ok = TRUE;

    CXaraFileRecord Rec(TAG_QUALITY,TAG_QUALITY_SIZE);

    if (ok) ok = Rec.Init();
    if (ok) ok = Rec.WriteINT32(Value.QualityValue.GetQuality());
    if (ok) ok = pFilter->Write(&Rec);

    return ok;
#else
    return FALSE;
#endif
}

---