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/*
XGFontManager.m
NSFontManager helper for GNUstep GUI X/GPS Backend
Copyright (C) 1996 Free Software Foundation, Inc.
Author: Ovidiu Predescu <ovidiu@bx.logicnet.ro>
Date: February 1997
A completely rewritten version of the original source of Scott Christley.
Modified: Fred Kiefer <FredKiefer@gmx.de>
Date: Febuary 2000
Added some X calls and changed the overall structure
This file is part of the GNUstep GUI X/GPS Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; see the file COPYING.LIB.
If not, see <http://www.gnu.org/licenses/> or write to the
Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <stdio.h>
#include <GNUstepGUI/GSFontInfo.h>
#include <Foundation/NSArchiver.h>
#include <Foundation/NSBundle.h>
#include <Foundation/NSException.h>
#include <Foundation/NSFileManager.h>
#include <Foundation/NSPathUtilities.h>
#include <Foundation/NSProcessInfo.h>
#include <Foundation/NSTask.h>
#include <Foundation/NSValue.h>
#include "xlib/XGContext.h"
#include "xlib/XGPrivate.h"
#include "x11/XGServer.h"
#define stringify_it(X) #X
static NSMutableDictionary* creationDictionary;
// Fills in the size into an creation string to make it an X font name
NSString *XGXFontName(NSString *fontName, float size)
{
NSString *creationName = [creationDictionary objectForKey: fontName];
if (creationName != nil)
return [NSString stringWithFormat: creationName, (int)size];
else
return nil;
}
@implementation XGFontEnumerator
static NSDictionary *cache;
static NSString*
cache_name()
{
static NSString *cacheName = nil;
if (cacheName == nil)
{
NSFileManager *mgr;
BOOL flag;
Display *dpy = [XGServer currentXDisplay];
NSString *file_name;
NSArray *paths;
NSString *path = nil;
file_name = XGFontCacheName(dpy);
paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory,
NSUserDomainMask, YES);
if ((paths != nil) && ([paths count] > 0))
{
path = [paths objectAtIndex: 0];
}
/*
* If standard search paths are not set up, try a default location.
*/
if (path == nil)
{
path = [[NSHomeDirectory() stringByAppendingPathComponent:
@"GNUstep"] stringByAppendingPathComponent: @"Library"];
}
mgr = [NSFileManager defaultManager];
if ([mgr fileExistsAtPath: path isDirectory: &flag] == NO || flag == NO)
{
NSLog(@"Library directory '%@' not available!", path);
return NO;
}
path = [path stringByAppendingPathComponent: @"Fonts"];
if ([mgr fileExistsAtPath: path] == NO)
{
[mgr createDirectoryAtPath: path attributes: nil];
}
if ([mgr fileExistsAtPath: path isDirectory: &flag] == NO || flag == NO)
{
NSLog(@"Fonts directory '%@' not available!", path);
return NO;
}
path = [path stringByAppendingPathComponent: @"Cache"];
if ([mgr fileExistsAtPath: path] == NO)
{
[mgr createDirectoryAtPath: path attributes: nil];
}
if ([mgr fileExistsAtPath: path isDirectory: &flag] == NO || flag == NO)
{
NSLog(@"Fonts directory '%@' not available!", path);
return NO;
}
cacheName = [path stringByAppendingPathComponent: file_name];
RETAIN(cacheName);
}
return cacheName;
}
static BOOL
load_cache(NSString *cacheName, BOOL async)
{
NSNumber *v;
id o;
NS_DURING
{
o = [NSUnarchiver unarchiveObjectWithFile: cacheName];
}
NS_HANDLER
{
NSLog(@"Exception while attempting to load font cache file %@ - %@: %@",
cacheName, [localException name], [localException reason]);
o = nil;
}
NS_ENDHANDLER
if ((o == nil)
|| ((v = [o objectForKey: @"Version"]) == nil)
|| ([v intValue] != 3))
{
NSString *file_name = [cacheName lastPathComponent];
NSString *path;
NSTask *task;
if (async == NO)
{
NSLog(@"No font cache available - building new one - this may "
@"take several seconds (or minutes on a slow machine with "
@"lots of fonts)");
}
path = [NSBundle _absolutePathOfExecutable: @"font_cacher"];
if (path == nil)
{
NSLog(@"Could not find font_cacher program. Please run manually");
return NO;
}
NSLog(@"Running %@", path);
task = [NSTask launchedTaskWithLaunchPath: path
arguments: [NSArray arrayWithObject: file_name]];
if (task == nil || async == YES)
{
return NO;
}
[task waitUntilExit];
o = [NSUnarchiver unarchiveObjectWithFile: cacheName];
if (o == nil)
{
NSLog(@"Error - font cache doesn't exist");
return NO;
}
}
else
{
// Ensure archive is written in latest format.
// No longer needed as NSString coding format did not change in
// the last two years.
//[NSArchiver archiveRootObject: o toFile: cacheName];
}
ASSIGN(cache, o);
return YES;
}
- (void) enumerateFontsAndFamilies
{
if (cache == nil)
{
if (load_cache(cache_name(), NO))
{
allFontNames = RETAIN([[cache objectForKey: @"AllFontNames"] allObjects]);
allFontFamilies = [cache objectForKey: @"AllFontFamilies"];
// This dictionary stores the XLFD for each font
creationDictionary = [cache objectForKey: @"CreationDictionary"];
}
}
}
@end
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