ViewList Class Reference

When optimising redraw for a particular View, we try to join all the render regions of a DocView into one if they cover more than 70% of the resulting union. This class is used to remember which Views we have already tried to optimise as we step through the render region list. More...

Inheritance diagram for ViewList:

List of all members.

Public Member Functions
	~ViewList ()
BOOL	AddView (View *)
	Add a View to a list to indicate that it has been optimised.
BOOL	IsViewOptimised (View *)
	Determine whether the given View is recorded in this list as having been optimised or not.

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Detailed Description

When optimising redraw for a particular View, we try to join all the render regions of a DocView into one if they cover more than 70% of the resulting union. This class is used to remember which Views we have already tried to optimise as we step through the render region list.

Author:

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

Date:

07/12/94

See also:

ViewItem; RenderRegionList

Definition at line 161 of file rgnlist.cpp.

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Constructor & Destructor Documentation

ViewList::~ViewList (   )  [inline]

Definition at line 166 of file rgnlist.cpp. { DeleteAll(); }

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Member Function Documentation

BOOL ViewList::AddView (  View *  pView  )

Add a View to a list to indicate that it has been optimised. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 07/12/94 Parameters: pView  - pointer to the View to add to the list (only this pointer [INPUTS] is stored in the list). Returns: TRUE if View was added ok; FALSE if not => ERROR1 Errors: Out of memory => ERROR1 See also: ViewList; ViewList::IsViewOptimised Definition at line 198 of file rgnlist.cpp. { // Try to create the new item ViewItem *pItem = new ViewItem(pView); if (pItem == NULL) // Failed - flag error to caller return FALSE; // Ok - add to list and return success AddTail(pItem); return TRUE; }

BOOL ViewList::IsViewOptimised (  View *  pView  )

Determine whether the given View is recorded in this list as having been optimised or not. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 07/12/94 Parameters: pView  - the View to test for. [INPUTS] Returns: TRUE if the View has been optimised; FALSE if not See also: ViewList; ViewList::AddView Definition at line 227 of file rgnlist.cpp. { ViewItem *pItem = (ViewItem *) GetHead(); while (pItem != NULL) { if (pItem->pView == pView) // It's in the list return TRUE; // Try next item pItem = (ViewItem *) GetNext(pItem); } // Not found - inform caller return FALSE; }

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

• Kernel/rgnlist.cpp (r1785/r1328)

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