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Add new image loaders.

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@18331 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Alexander Malmberg 2004-01-07 23:53:15 +00:00
parent 4e578145fe
commit 3f7866a8ed
9 changed files with 977 additions and 9 deletions
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90
Source/NSBitmapImageRep.m
View file

@ -2,7 +2,7 @@
<abstract>Bitmap image representation.</abstract>
Copyright (C) 1996 Free Software Foundation, Inc.
Copyright (C) 1996, 2003, 2004 Free Software Foundation, Inc.
Author: Adam Fedor <fedor@gnu.org>
Date: Feb 1996
@ -30,6 +30,12 @@
#include <math.h>
#include <tiff.h>
#include "AppKit/NSBitmapImageRep.h"
#include "NSBitmapImageRep+JPEG.h"
#include "NSBitmapImageRep+PNG.h"
#include "NSBitmapImageRep+PNM.h"
#include <Foundation/NSArray.h>
#include <Foundation/NSData.h>
#include <Foundation/NSDebug.h>
@ -37,7 +43,6 @@
#include <Foundation/NSFileManager.h>
#include <Foundation/NSValue.h>
#include "AppKit/AppKitExceptions.h"
#include "AppKit/NSBitmapImageRep.h"
#include "AppKit/NSGraphics.h"
#include "AppKit/NSGraphicsContext.h"
#include "AppKit/NSPasteboard.h"
@ -94,6 +99,15 @@ static BOOL supports_lzw_compression = NO;
return NO;
}
if ([self _bitmapIsPNG: data])
return YES;
if ([self _bitmapIsPNM: data])
return YES;
if ([self _bitmapIsJPEG: data])
return YES;
image = NSTiffOpenDataRead ((char *)[data bytes], [data length]);
if (image != NULL)
@ -117,15 +131,20 @@ static BOOL supports_lzw_compression = NO;
{
NSArray *wtypes = [self _wrasterFileTypes];
types = [[NSMutableArray alloc] initWithObjects:
@"tiff", @"tif",
@"pnm", @"ppm",
#if HAVE_LIBJPEG
@"jpeg", @"jpg",
#endif
#if HAVE_LIBPNG
@"png",
#endif
nil];
if (wtypes != nil)
{
types = [wtypes mutableCopy];
[(NSMutableArray *)types insertObject: @"tiff" atIndex: 0];
[(NSMutableArray *)types insertObject: @"tif" atIndex: 1];
}
else
{
types = [[NSArray alloc] initWithObjects: @"tiff", @"tif", nil];
[(NSMutableArray *)types addObjectsFromArray: wtypes];
}
}
@ -175,6 +194,47 @@ static BOOL supports_lzw_compression = NO;
return [NSArray array];
}
if ([self _bitmapIsPNG: imageData])
{
NSBitmapImageRep *rep;
NSArray *a;
rep=[[self alloc] _initBitmapFromPNG: imageData];
if (!rep)
return [NSArray array];
a = [NSArray arrayWithObject: rep];
DESTROY(rep);
return a;
}
if ([self _bitmapIsPNM: imageData])
{
NSBitmapImageRep *rep;
NSArray *a;
rep=[[self alloc] _initBitmapFromPNM: imageData
errorMessage: NULL];
if (!rep)
return [NSArray array];
a = [NSArray arrayWithObject: rep];
DESTROY(rep);
return a;
}
if ([self _bitmapIsJPEG: imageData])
{
NSBitmapImageRep *rep;
NSArray *a;
rep=[[self alloc] _initBitmapFromJPEG: imageData
errorMessage: NULL];
if (!rep)
return [NSArray array];
a = [NSArray arrayWithObject: rep];
DESTROY(rep);
return a;
}
image = NSTiffOpenDataRead((char *)[imageData bytes], [imageData length]);
if (image == NULL)
{
@ -211,6 +271,18 @@ static BOOL supports_lzw_compression = NO;
return nil;
}
if ([isa _bitmapIsPNG: imageData])
return [self _initBitmapFromPNG: imageData];
if ([isa _bitmapIsPNM: imageData])
return [self _initBitmapFromPNM: imageData
errorMessage: NULL];
if ([isa _bitmapIsJPEG: imageData])
return [self _initBitmapFromJPEG: imageData
errorMessage: NULL];
image = NSTiffOpenDataRead((char *)[imageData bytes], [imageData length]);
if (image == NULL)
{