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Optimisation

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@3716 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 1999-02-16 06:02:15 +00:00
parent d6da78443c
commit 320a9d10c4
3 changed files with 25 additions and 11 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
Tue Feb 16 5:30:00 1999 Richard Frith-Macdonald <richard@brainstorm.co.uk>
* Source/NSView.m: Optimise coordinate conversion.
* Headers/AppKit/PSMatrix.h: ditto
1999-02-15 Michael Hanni <mhanni@sprintmail.com>
* Source/NSBox.m Source/NSButtonCell.m Source/NSCell.m

1
Headers/gnustep/gui/PSMatrix.h
View file

@ -31,6 +31,7 @@
@interface PSMatrix : NSObject <NSCopying>
{
@public
float matrix[6];
float rotationAngle;
}

30
Source/NSView.m
View file

@ -55,6 +55,9 @@
// Class variables
//
static NSString *viewThreadKey = @"NSViewThreadKey";
static void (*concatImp)(PSMatrix*, SEL, PSMatrix*) = 0;
static SEL concatSel = @selector(concatenateWith:);
static PSMatrix *flip = nil;
//
// Class methods
@ -63,6 +66,13 @@ static NSString *viewThreadKey = @"NSViewThreadKey";
{
if (self == [NSView class])
{
Class matrixClass = [PSMatrix class];
float vals[6] = { 1, 0, 0, -1, 0, 1 };
concatImp = (void (*)(PSMatrix*, SEL, PSMatrix*))
[matrixClass instanceMethodForSelector: concatSel];
flip = [[matrixClass matrixFrom: vals] retain];
NSDebugLog(@"Initialize NSView class\n");
[self setVersion: 1];
}
@ -572,32 +582,30 @@ static NSString *viewThreadKey = @"NSViewThreadKey";
- (PSMatrix*) _concatenateMatricesInReverseOrderFromPath: (NSArray*)viewsPath
{
unsigned i = [viewsPath count];
PSMatrix *matrix = [[PSMatrix new] autorelease];
unsigned i = [viewsPath count];
NSView *matrices[i];
NSView *parent;
BOOL wasFlipped;
BOOL isFlipped;
if (i-- < 2)
return matrix;
parent = [viewsPath objectAtIndex: i];
[viewsPath getObjects: matrices];
parent = matrices[i];
wasFlipped = [parent isFlipped];
while (i-- > 0)
{
NSView *view = [viewsPath objectAtIndex: i];
NSView *view = matrices[i];
[matrix concatenateWith: view->frameMatrix];
(*concatImp)(matrix, concatSel, view->frameMatrix);
isFlipped = [view isFlipped];
if (isFlipped != wasFlipped)
{
PSMatrix *flip = nil;
float vals[6] = { 1, 0, 0, -1, 0, 1 };
vals[5] = view->bounds.size.height;
flip = [PSMatrix matrixFrom: vals];
[matrix concatenateWith: flip];
flip->matrix[5] = view->bounds.size.height;
(*concatImp)(matrix, concatSel, flip);
}
[matrix concatenateWith: view->boundsMatrix];
(*concatImp)(matrix, concatSel, view->boundsMatrix);
parent = view;
wasFlipped = isFlipped;
}