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/* TextSystem-test.m: test fonts, glyphs
Copyright (C) 2011 Free Software Foundation, Inc.
Author: Eric Wasylishen <ewasylishen@gmail.com>
Date: 2011
This file is part of GNUstep.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <Foundation/Foundation.h>
#include <AppKit/AppKit.h>
#include "../GSTestProtocol.h"
static NSGlyph GlyphForCharacter(NSFont *f, unichar c)
{
NSTextView *view = [[NSTextView alloc] init];
NSGlyph g = 0;
[view setFont: f];
[view setString: [[[NSString alloc] initWithCharacters: &c length: 1] autorelease]];
if ([[view layoutManager] numberOfGlyphs] > 0)
{
[[view layoutManager] getGlyphs: &g range: NSMakeRange(0, 1)];
}
[view release];
return g;
}
static NSGlyph GlyphForAttributedStringIndex(NSAttributedString *as, NSUInteger i)
{
NSFont *f = [as attribute: NSFontAttributeName atIndex: i effectiveRange: NULL];
if (f == nil)
{
f = [NSFont systemFontOfSize: 0];
}
return GlyphForCharacter(f, [[as string] characterAtIndex: i]);
}
/**
* This glyph generator reverses the input string
*/
@interface CrazyGlyphGenerator : NSGlyphGenerator
{
}
@end
@implementation CrazyGlyphGenerator
- (void) generateGlyphsForGlyphStorage: (id <NSGlyphStorage>)storage
desiredNumberOfCharacters: (NSUInteger)num
glyphIndex: (NSUInteger*)glyph
characterIndex: (NSUInteger*)index
{
NSAttributedString *as = [storage attributedString];
NSUInteger len = [as length];
NSUInteger i;
for (i=*index; i<(*index + num); i++)
{
NSGlyph g = GlyphForAttributedStringIndex(as, i);
[storage insertGlyphs: &g
length: 1
forStartingGlyphAtIndex: (len - i)
characterIndex: i];
}
*index = *index + num;
*glyph = *glyph + num;
}
@end
static void AddLabel(NSString *text, NSRect frame, NSView *dest)
{
NSTextField *labelView = [[NSTextField alloc] initWithFrame: frame];
[labelView setStringValue: text];
[labelView setEditable: NO];
[labelView setSelectable: NO];
[labelView setBezeled: NO];
[labelView setFont: [NSFont labelFontOfSize: 10]];
[labelView setDrawsBackground: NO];
[dest addSubview: labelView];
[labelView release];
}
@interface TextSystemTest : NSObject <GSTest>
{
NSWindow *win;
}
-(void) restart;
@end
@interface TextSystemTestView : NSView
{
}
@end
@implementation TextSystemTestView
- (id)initWithFrame: (NSRect)frame
{
self = [super initWithFrame: frame];
if (self != nil)
{
AddLabel(@"The text view below has a glyph generator which reverses the input string. It should display HelloWorld backwards (dlroWolleH)", NSMakeRect(0, 310, 400, 50), self);
{
NSTextContainer *tc1;
NSTextView *tv1;
NSLayoutManager *lm1;
NSTextStorage *storage;
NSGlyphGenerator *gg;
gg = [[CrazyGlyphGenerator alloc] init];
storage = [[NSTextStorage alloc] init];
lm1 = [[NSLayoutManager alloc] init];
[lm1 setGlyphGenerator: gg];
[gg release];
[storage addLayoutManager: lm1];
[lm1 release];
tc1 = [[NSTextContainer alloc] initWithContainerSize: NSMakeSize(150, 150)];
[lm1 addTextContainer: tc1];
[tc1 release];
tv1 = [[NSTextView alloc] initWithFrame: NSMakeRect(0, 0, 150,150) textContainer: tc1];
[self addSubview: tv1];
[tv1 release];
[[storage mutableString] appendString: @"HelloWorld"];
}
}
return self;
}
@end
@implementation TextSystemTest : NSObject
-(id) init
{
NSView *content;
content = [[TextSystemTestView alloc] initWithFrame: NSMakeRect(0,0,400,360)];
// Create the window
win = [[NSWindow alloc] initWithContentRect: [content frame]
styleMask: (NSTitledWindowMask
| NSClosableWindowMask
| NSMiniaturizableWindowMask
| NSResizableWindowMask)
backing: NSBackingStoreBuffered
defer: NO];
[win setReleasedWhenClosed: NO];
[win setContentView: content];
[win setMinSize: [win frame].size];
[win setTitle: @"TextSystem Test"];
[self restart];
return self;
}
-(void) restart
{
[win orderFront: nil];
[[NSApplication sharedApplication] addWindowsItem: win
title: [win title]
filename: NO];
}
- (void) dealloc
{
RELEASE (win);
[super dealloc];
}
@end
|
