ColourImportContext Class Reference

Provides a colour context to use when importing colours, which allows us to easily import arbitrarily nested linked colours. More...

#include <impcol.h>

Inheritance diagram for ColourImportContext:

List of all members.

Public Member Functions
	ColourImportContext ()
	~ColourImportContext ()
BOOL	Init ()
	Declares a preference that allows you to clear memory in delete().
void	SetContext (IndexedColour *)
IndexedColour *	GetContext ()
BOOL	SaveContext ()
BOOL	RestoreContext ()
BOOL	RestoreContextTo (UINT32)
Private Member Functions
	CC_DECLARE_MEMDUMP (ColourImportContext)

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Detailed Description

Provides a colour context to use when importing colours, which allows us to easily import arbitrarily nested linked colours.

Author:

Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>

Date:

01/12/94

See also:

ContextItem; ImportedColours

Definition at line 259 of file impcol.h.

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Constructor & Destructor Documentation

ColourImportContext::ColourImportContext (   )

Definition at line 184 of file impcol.cpp. { }

ColourImportContext::~ColourImportContext (   )

Definition at line 188 of file impcol.cpp. { // Just lose all the items in our list. DeleteAll(); }

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Member Function Documentation

ColourImportContext::CC_DECLARE_MEMDUMP (  ColourImportContext   )  [private]

IndexedColour * ColourImportContext::GetContext (   )

Definition at line 219 of file impcol.cpp. { // Get the current context item (always the last) ContextItem *pItem = (ContextItem *) GetTail(); // Return its colour pointer return pItem->pCol; }

BOOL ColourImportContext::Init (  void   )

Declares a preference that allows you to clear memory in delete(). Author: Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com> Date: 19/4/94 Returns: TRUE if it worked OK, FALSE if not Reimplemented from SimpleCCObject. Definition at line 194 of file impcol.cpp. { // Add an initial context item ContextItem *pItem = new ContextItem(NULL); if (pItem == NULL) return FALSE; // Add to the list AddTail(pItem); // All ok return TRUE; }

BOOL ColourImportContext::RestoreContext (   )

Definition at line 246 of file impcol.cpp. { // Make sure we can do this - must always have at least one node if (GetCount() <= 1) { ERROR3("Bad call to ColourImportContext::RestoreContext()"); return FALSE; } // Remove and delete the last context item delete RemoveTail(); // All ok return TRUE; }

BOOL ColourImportContext::RestoreContextTo (  UINT32   )

Definition at line 262 of file impcol.cpp. { // How many should we delete? INT32 NumToDelete = (INT32) (GetCount() - NewLevel) - 1; // Make sure this is a legal request. if (NumToDelete < 0) // No - return failure return FALSE; // Ok - delete this many items while (NumToDelete > 0) { if (!RestoreContext()) { ERROR3("Bad call to ColourImportContext::RestoreContextTo()"); return FALSE; } NumToDelete--; } // All ok return TRUE; }

BOOL ColourImportContext::SaveContext (   )

Definition at line 228 of file impcol.cpp. { // Get a pointer to the current context node ContextItem *pCurrentItem = (ContextItem *) GetTail(); // Add a new context node to the end of the list, and give it the same // context as the current context node. ContextItem *pItem = new ContextItem(pCurrentItem->pCol); if (pItem == NULL) return FALSE; // Add to the list AddTail(pItem); // All ok return TRUE; }

void ColourImportContext::SetContext (  IndexedColour *   )

Definition at line 209 of file impcol.cpp. { // Get the current context item (always the last) ContextItem *pItem = (ContextItem *) GetTail(); // Update its colour pointer pItem->pCol = pCol; }

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The documentation for this class was generated from the following files:

• Kernel/impcol.h (r1785/r1282)
• Kernel/impcol.cpp (r1785/r1282)

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