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/* Image-test.m: test that fills/strokes line up on the desired
pixel boundaries.
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 NSImage *ImageFromBundle(NSString *name, NSString *type);
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];
}
/**
* Draws a crosshair centered on the rectangle NSMakeRect(point.x, point.y, 1, 1)
*/
static void DrawCrosshair(NSPoint point)
{
[[NSGraphicsContext currentContext] saveGraphicsState];
[[[NSColor redColor] colorWithAlphaComponent: 0.5] setFill];
NSFrameRect(NSMakeRect(point.x + 1, point.y, 10, 1));
NSFrameRect(NSMakeRect(point.x - 10, point.y, 10, 1));
NSFrameRect(NSMakeRect(point.x, point.y + 1, 1, 10));
NSFrameRect(NSMakeRect(point.x, point.y - 10, 1, 10));
[[NSGraphicsContext currentContext] restoreGraphicsState];
}
static NSImage *ResizedIcon(NSImage *icon, int size, BOOL createBitmap)
{
NSSize icnsize = [icon size];
NSRect srcr = NSMakeRect(0, 0, icnsize.width, icnsize.height);
float fact = (icnsize.width >= icnsize.height) ? (icnsize.width / size) : (icnsize.height / size);
NSSize newsize = NSMakeSize(floor(icnsize.width / fact + 0.5), floor(icnsize.height / fact + 0.5));
NSRect dstr = NSMakeRect(0, 0, newsize.width, newsize.height);
NSImage *newIcon = [[NSImage alloc] initWithSize: newsize];
[newIcon lockFocus];
[icon drawInRect: dstr
fromRect: srcr
operation: NSCompositeSourceOver
fraction: 1.0];
// It should work with or without this block executing
if (createBitmap)
{
NSBitmapImageRep *rep = [[NSBitmapImageRep alloc] initWithFocusedViewRect: dstr];
[newIcon addRepresentation: rep];
[rep release];
}
[newIcon unlockFocus];
return [newIcon autorelease];
}
@interface ImageTest : NSObject <GSTest>
{
NSWindow *win;
}
-(void) restart;
@end
@interface VectorTestRep : NSImageRep
{
}
+ (NSImage*) testImage;
@end
@interface DrawingDelegate : NSObject
@end
@interface FlippedTestView : NSView
{
NSImage *gsImage;
}
@end
@implementation FlippedTestView
- (id)initWithFrame: (NSRect)aFrame
{
self = [super initWithFrame: aFrame];
if (self)
{
AddLabel(@"(10, 10) This is a flipped view with an 80% bounds scale, 3 degrees rotation, and a translation", NSMakeRect(10,10,500,12), self);
AddLabel(@"Composite image to (10, 80) (should be bigger and not rotated):", NSMakeRect(10,30,500,12), self);
AddLabel(@"Draw image at (10, 100) (should be up-side down and rotated):", NSMakeRect(10,85,500,12), self);
AddLabel(@"Draw image at (10, 155) using respectFlipped: YES (should be right-side-up and rotated):", NSMakeRect(10,140,500,12), self);
gsImage = [ImageFromBundle(@"gs", @"png") retain];
}
return self;
}
- (void)dealloc
{
[gsImage release];
[super dealloc];
}
- (BOOL) isFlipped
{
return YES;
}
- (void) drawRect: (NSRect)dirty
{
[[[NSColor whiteColor] colorWithAlphaComponent: 0.2] setFill];
[[NSBezierPath bezierPathWithRect: [self bounds]] fill];
[gsImage compositeToPoint: NSMakePoint(10,80)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
DrawCrosshair(NSMakePoint(10, 80));
[gsImage drawAtPoint: NSMakePoint(10,100)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
DrawCrosshair(NSMakePoint(10, 100));
[gsImage drawInRect: NSMakeRect(10,155, [gsImage size].width, [gsImage size].height)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0
respectFlipped: YES
hints: nil];
DrawCrosshair(NSMakePoint(10, 155));
}
@end
@interface FlippedNinePartView : NSView
@end
@implementation FlippedNinePartView
- (BOOL) isFlipped
{
return YES;
}
- (void) drawRect: (NSRect)dirty
{
NSDrawNinePartImage(NSMakeRect(0, 0, 128, 64),
ImageFromBundle(@"1", @"png"),
ImageFromBundle(@"2", @"png"),
ImageFromBundle(@"3", @"png"),
ImageFromBundle(@"4", @"png"),
ImageFromBundle(@"5", @"png"),
ImageFromBundle(@"6", @"png"),
ImageFromBundle(@"7", @"png"),
ImageFromBundle(@"8", @"png"),
ImageFromBundle(@"9", @"png"),
NSCompositeSourceOver,
1.0,
YES);
NSDrawNinePartImage(NSMakeRect(0, 96, 24, 32),
ImageFromBundle(@"1", @"png"),
ImageFromBundle(@"2", @"png"),
ImageFromBundle(@"3", @"png"),
ImageFromBundle(@"4", @"png"),
ImageFromBundle(@"5", @"png"),
ImageFromBundle(@"6", @"png"),
ImageFromBundle(@"7", @"png"),
ImageFromBundle(@"8", @"png"),
ImageFromBundle(@"9", @"png"),
NSCompositeSourceOver,
1.0,
YES);
}
@end
@interface ImageTestView : NSView
{
NSImage *pdfexample, *svgexample;
}
@end
@implementation ImageTestView
static NSImage *ImageFromBundle(NSString *name, NSString *type)
{
return [[[NSImage alloc] initWithContentsOfFile:
[[NSBundle bundleForClass: [ImageTestView class]] pathForResource: name ofType: type]] autorelease];
}
- (id)initWithFrame: (NSRect)frame
{
self = [super initWithFrame: frame];
if (self != nil)
{
NSView *flipped = [[FlippedTestView alloc] initWithFrame: NSMakeRect(10, 200, 400, 200)];
[flipped setBounds: NSMakeRect(0, 0, 500, 250)];
[flipped setBoundsRotation: 3.0];
[flipped translateOriginToPoint: NSMakePoint(25, 0)];
[self addSubview: flipped];
[flipped release];
pdfexample = [ImageFromBundle(@"pdfexample", @"pdf") retain];
svgexample = [ImageFromBundle(@"svgexample", @"svg") retain];
{
NSView *flippedNinePartView = [[FlippedNinePartView alloc] initWithFrame: NSMakeRect(670, 128, 128, 128)];
[self addSubview: flippedNinePartView];
[flippedNinePartView release];
AddLabel(@"Flipped NSDrawNinePartImage", NSMakeRect(670,260,128,30), self);
}
AddLabel(@"Clipped image at 20x. Should not have faded edge.", NSMakeRect(670,30,128,50), self);
}
return self;
}
- (void) dealloc
{
[pdfexample release];
[svgexample release];
[super dealloc];
}
- (NSBezierPath *) gBezierPathAtPoint: (NSPoint)p
{
NSFont *font = [NSFont fontWithName: @"Helvetica" size: 64.0];
NSBezierPath *path = [NSBezierPath bezierPath];
[path moveToPoint: p];
[path appendBezierPathWithGlyph: [font glyphWithName: @"a"]
inFont: font];
return path;
}
- (void) drawRect: (NSRect)dirty
{
// Test drawing with a complex clip path
{
NSImage *img = ImageFromBundle(@"plasma", @"png");
[[NSGraphicsContext currentContext] saveGraphicsState];
// Set the clipping path to a 'g' character
[[self gBezierPathAtPoint: NSMakePoint(68,68)] addClip];
[img drawInRect: NSMakeRect(64,64,128,128)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
[[NSGraphicsContext currentContext] restoreGraphicsState];
}
// Test saveGraphicsState preserves a complex clip path
// (expected fail as of 26/09/2011)
{
NSImage *img = ImageFromBundle(@"plasma", @"png");
[[NSGraphicsContext currentContext] saveGraphicsState];
[[self gBezierPathAtPoint: NSMakePoint(68,132)] addClip];
[[NSGraphicsContext currentContext] saveGraphicsState];
[img drawInRect: NSMakeRect(64,128,128,128)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
[[NSGraphicsContext currentContext] restoreGraphicsState];
[[NSGraphicsContext currentContext] restoreGraphicsState];
}
// Test drawing sub-regions of an image
{
NSImage *img = ImageFromBundle(@"fourcorners", @"png");
[img drawInRect: NSMakeRect(128,64,32,32)
fromRect: NSMakeRect(0,64,64,64)
operation: NSCompositeSourceOver
fraction: 1.0];
[img drawAtPoint: NSMakePoint(192, 64)
fromRect: NSMakeRect(0,64,64,64)
operation: NSCompositeSourceOver
fraction: 1.0];
[img compositeToPoint: NSMakePoint(128, 128)
fromRect: NSMakeRect(64,64,64,64)
operation: NSCompositeSourceOver];
}
// Test that drawing a vector rep scales properly
{
NSImage *img = [VectorTestRep testImage];
[img drawAtPoint: NSMakePoint(256, 0)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
[img drawInRect: NSMakeRect(300, 0, 100, 100)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
}
// Test drawing into an NSBitmapImageRep
{
NSImage *img;
NSBitmapImageRep *rep = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL
pixelsWide: 64
pixelsHigh: 64
bitsPerSample: 8
samplesPerPixel: 4
hasAlpha: YES
isPlanar: NO
colorSpaceName: NSCalibratedRGBColorSpace
bitmapFormat: 0
bytesPerRow: 0
bitsPerPixel: 0] autorelease];
[NSGraphicsContext saveGraphicsState];
[NSGraphicsContext setCurrentContext:
[NSGraphicsContext graphicsContextWithBitmapImageRep: rep]];
[[NSColor purpleColor] setFill];
[[NSBezierPath bezierPathWithOvalInRect:NSMakeRect(0,0,64,64)] fill];
[NSGraphicsContext restoreGraphicsState];
img = [[[NSImage alloc] initWithSize: NSMakeSize(64,64)] autorelease];
[img addRepresentation: rep];
[img drawInRect: NSMakeRect(400, 0,64,64)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 0.5];
[img drawInRect: NSMakeRect(432, 0,64,64)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 0.5];
// Stroke around where the images should be drawn
[[NSColor purpleColor] setStroke];
[[NSBezierPath bezierPathWithOvalInRect:NSMakeRect(400,0,64,64)] stroke];
[[NSBezierPath bezierPathWithOvalInRect:NSMakeRect(432,0,64,64)] stroke];
}
// Test PDF and SVG
{
[pdfexample drawAtPoint: NSMakePoint(400, 64)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
[svgexample drawAtPoint: NSMakePoint(464, 64)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
}
// Test NSCustomImageRep
{
NSImage *img = [[NSImage alloc] init];
id delegate = [[DrawingDelegate alloc] init];
NSCustomImageRep *rep = [[NSCustomImageRep alloc] initWithDrawSelector: @selector(draw:)
delegate: delegate];
[img addRepresentation: rep];
[rep release];
// NOTE: We'll test with the rep size (0, 0); it should still work.
[img setSize: NSMakeSize(64, 64)];
[img drawAtPoint: NSMakePoint(532, 0)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
[delegate release];
[img release];
}
// Test NSDrawNinePartImage
{
NSDrawNinePartImage(NSMakeRect(532, 192, 128, 64),
ImageFromBundle(@"1", @"png"),
ImageFromBundle(@"2", @"png"),
ImageFromBundle(@"3", @"png"),
ImageFromBundle(@"4", @"png"),
ImageFromBundle(@"5", @"png"),
ImageFromBundle(@"6", @"png"),
ImageFromBundle(@"7", @"png"),
ImageFromBundle(@"8", @"png"),
ImageFromBundle(@"9", @"png"),
NSCompositeSourceOver,
1.0,
NO);
NSDrawNinePartImage(NSMakeRect(532, 128, 24, 32),
ImageFromBundle(@"1", @"png"),
ImageFromBundle(@"2", @"png"),
ImageFromBundle(@"3", @"png"),
ImageFromBundle(@"4", @"png"),
ImageFromBundle(@"5", @"png"),
ImageFromBundle(@"6", @"png"),
ImageFromBundle(@"7", @"png"),
ImageFromBundle(@"8", @"png"),
ImageFromBundle(@"9", @"png"),
NSCompositeSourceOver,
1.0,
NO);
}
// Test drawing a single pixel of an image scaled up 20x.
// It should have not fade out towards the edge of the image.
{
[NSGraphicsContext saveGraphicsState];
NSRectClip(NSMakeRect(670,5,20,20));
[ImageFromBundle(@"1", @"png") drawInRect: NSMakeRect(670,5,300,400)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0
respectFlipped: YES
hints: nil];
[NSGraphicsContext restoreGraphicsState];
}
// Test using lockFocus and drawing an image into an image
{
NSImage *test = [NSImage imageNamed: @"common_Unknown"];
NSImage *testWithCreateBitmap, *testWithoutCreateBitmap;
[test compositeToPoint: NSMakePoint(800,0)
operation: NSCompositeSourceOver];
// These should behve the same
testWithCreateBitmap = ResizedIcon(test, 16, YES);
testWithoutCreateBitmap = ResizedIcon(test, 16, NO);
[testWithCreateBitmap compositeToPoint: NSMakePoint(864, 0)
operation: NSCompositeSourceOver];
[testWithoutCreateBitmap compositeToPoint: NSMakePoint(864, 32)
operation: NSCompositeSourceOver];
}
// Test a 92x92dpi and 138x92dpi image. They are both approximately
// 50.1 pt square.
{
NSImage *a = ImageFromBundle(@"92x92dpi", @"tiff");
NSImage *b = ImageFromBundle(@"138x92dpi", @"tiff");
[a drawAtPoint: NSMakePoint(800, 128)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
[b drawAtPoint: NSMakePoint(850, 128)
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0];
}
{
NSRect r = NSMakeRect(800,200,44,44);
NSImage *a = ImageFromBundle(@"testTIFFIconWithAllImages72DPI", @"tiff");
[a setScalesWhenResized: YES];
[a setSize: NSMakeSize(48, 48)];
[@"fail fail fail fail" drawInRect: r withAttributes: nil];
// This should still fill the given rect
[a drawInRect: r
fromRect: NSZeroRect
operation: NSCompositeSourceOver
fraction: 1.0
respectFlipped: YES
hints: nil];
[[NSColor redColor] set];
NSFrameRect(r);
}
}
@end
@implementation ImageTest : NSObject
-(id) init
{
NSView *content;
content = [[ImageTestView alloc] initWithFrame: NSMakeRect(0,0,900,445)];
// 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: @"Image 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
@implementation VectorTestRep
- (id)init
{
[self setSize: NSMakeSize(32, 32)];
[self setAlpha: YES];
[self setOpaque: NO];
[self setBitsPerSample: NSImageRepMatchesDevice];
[self setPixelsWide: NSImageRepMatchesDevice];
[self setPixelsHigh: NSImageRepMatchesDevice];
return self;
}
- (BOOL)draw
{
[[[NSColor blueColor] colorWithAlphaComponent: 0.5] set];
[NSBezierPath setDefaultLineWidth: 2.0];
[NSBezierPath strokeRect: NSMakeRect(1, 1, 28, 28)];
[[[NSColor redColor] colorWithAlphaComponent: 0.5] set];
[NSBezierPath setDefaultLineWidth: 1.0];
[[NSBezierPath bezierPathWithOvalInRect: NSMakeRect(2,2,26,26)] stroke];
[@"Vector Rep" drawInRect: NSMakeRect(2,2,26,26)
withAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[NSFont userFontOfSize: 8], NSFontAttributeName,
nil]];
return YES;
}
+ (NSImage *)testImage
{
NSImage *img = [[[NSImage alloc] initWithSize: NSMakeSize(32, 32)] autorelease];
[img addRepresentation: [[[self alloc] init] autorelease]];
return img;
}
@end
/**
* A delegate to use with NSCustomImageRep.
*/
@implementation DrawingDelegate
- (void) draw: (NSCustomImageRep*)rep
{
[[[NSColor magentaColor] colorWithAlphaComponent: 0.5] set];
[NSBezierPath setDefaultLineWidth: 2.0];
[NSBezierPath strokeRect: NSMakeRect(1, 1, 60, 60)];
[[[NSColor blueColor] colorWithAlphaComponent: 0.5] set];
[NSBezierPath setDefaultLineWidth: 1.0];
[[NSBezierPath bezierPathWithOvalInRect: NSMakeRect(2,2,58,58)] stroke];
[@"Custom Rep" drawInRect: NSMakeRect(2,2,58,58)
withAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[NSFont userFontOfSize: 10], NSFontAttributeName,
nil]];
[@"CLIPPED" drawInRect: NSMakeRect(2,2,400,30)
withAttributes: [NSDictionary dictionaryWithObjectsAndKeys:
[NSFont userFontOfSize: 24], NSFontAttributeName,
nil]];
}
@end
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