/* |
File: ShapeViewController.m |
Abstract: The "Shapes" view section on the NSStackView. |
Version: 1.0 |
|
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple |
Inc. ("Apple") in consideration of your agreement to the following |
terms, and your use, installation, modification or redistribution of |
this Apple software constitutes acceptance of these terms. If you do |
not agree with these terms, please do not use, install, modify or |
redistribute this Apple software. |
|
In consideration of your agreement to abide by the following terms, and |
subject to these terms, Apple grants you a personal, non-exclusive |
license, under Apple's copyrights in this original Apple software (the |
"Apple Software"), to use, reproduce, modify and redistribute the Apple |
Software, with or without modifications, in source and/or binary forms; |
provided that if you redistribute the Apple Software in its entirety and |
without modifications, you must retain this notice and the following |
text and disclaimers in all such redistributions of the Apple Software. |
Neither the name, trademarks, service marks or logos of Apple Inc. may |
be used to endorse or promote products derived from the Apple Software |
without specific prior written permission from Apple. Except as |
expressly stated in this notice, no other rights or licenses, express or |
implied, are granted by Apple herein, including but not limited to any |
patent rights that may be infringed by your derivative works or by other |
works in which the Apple Software may be incorporated. |
|
The Apple Software is provided by Apple on an "AS IS" basis. APPLE |
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION |
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS |
FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND |
OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS. |
|
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL |
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, |
MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED |
AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), |
STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE |
POSSIBILITY OF SUCH DAMAGE. |
|
Copyright (C) 2013 Apple Inc. All Rights Reserved. |
|
*/ |
|
#import "ShapeViewController.h" |
|
@interface ShapeViewController () |
@property (nonatomic, assign, readwrite) NSUInteger selectedShape; |
@end |
|
|
#pragma mark - |
|
@implementation ShapeViewController |
|
- (NSImageView *)imageWithName:(NSString *)name |
{ |
NSImageView *imageView = [[NSImageView alloc] initWithFrame:NSZeroRect]; |
imageView.translatesAutoresizingMaskIntoConstraints = NO; |
imageView.image = [NSImage imageNamed:name]; |
|
// always make the image view size 54x54 |
[imageView addConstraint:[NSLayoutConstraint constraintWithItem:imageView |
attribute:NSLayoutAttributeWidth |
relatedBy:NSLayoutRelationEqual |
toItem:nil |
attribute:0 |
multiplier:0 |
constant:54]]; |
[imageView addConstraint:[NSLayoutConstraint constraintWithItem:imageView |
attribute:NSLayoutAttributeHeight |
relatedBy:NSLayoutRelationEqual |
toItem:nil |
attribute:0 |
multiplier:0 |
constant:54]]; |
return imageView; |
} |
|
- (NSString *)imageNameForTag:(NSUInteger)tag |
{ |
NSString *imageName = nil; |
switch (tag) |
{ |
case 0: |
imageName = @"arrow"; |
break; |
case 1: |
imageName = @"circle"; |
break; |
case 2: |
imageName = @"pentagon"; |
break; |
case 3: |
imageName = @"square"; |
break; |
case 4: |
imageName = @"triangle"; |
break; |
case 5: |
imageName = @"star"; |
break; |
} |
return imageName; |
} |
|
// A disclosed view is being associated with this view controller, |
// this is a good time to setup the content for the NSStackView: |
// |
- (void)setDisclosedView:(NSView *)disclosedView |
{ |
[super setDisclosedView:disclosedView]; |
|
ShapePaletteView *shapeView = (ShapePaletteView *)self.disclosedView; |
|
shapeView.delegate = self; // let us be notified when a shape was clicked on |
|
NSStackView *stackView = [[shapeView subviews] objectAtIndex:0]; |
assert(stackView != nil); |
|
// figure out the image names for each shape, and add them to our stack view |
for (NSUInteger index = 0; index < 6; index++) |
{ |
NSString *imageName = [self imageNameForTag:index]; |
NSImageView *imageView = [self imageWithName:imageName]; |
[imageView setTag:index]; // tag this view so we can recognize it later |
[stackView addView:imageView inGravity:NSStackViewGravityLeading]; |
[stackView setVisibilityPriority:(NSStackViewVisibilityPriorityDetachOnlyIfNecessary - index) |
forView:imageView]; |
} |
|
// use the view tag to obtain the shape image |
NSImageView *selectedImage = [stackView viewWithTag:0]; |
// inform ourselves of the initial selected shape image |
[self userSelectedShapeView:selectedImage]; |
|
// add a minimum width constraint |
[stackView addConstraint:[NSLayoutConstraint constraintWithItem:stackView |
attribute:NSLayoutAttributeWidth |
relatedBy:NSLayoutRelationGreaterThanOrEqual |
toItem:nil |
attribute:0 |
multiplier:0 |
constant:270]]; |
|
// add a constraint not allowing the stackview to expand beyond the last view |
[stackView addConstraint:[NSLayoutConstraint constraintWithItem:stackView |
attribute:NSLayoutAttributeTrailing |
relatedBy:NSLayoutRelationLessThanOrEqual |
toItem:[stackView.views lastObject] |
attribute:NSLayoutAttributeTrailing |
multiplier:1.0 |
constant:stackView.edgeInsets.right]]; |
} |
|
|
#pragma mark - ShapesViewDelegate |
|
// As a ShapesViewDelegate we are being asked to respond to shape selection, |
// here we respond by changing the shape image to selected or de-selected. |
// |
- (void)userSelectedShapeView:(NSImageView *)selectedImage |
{ |
NSImageView *oldShapeView = [self.disclosedView viewWithTag:self.selectedShape]; |
|
NSInteger viewTag = oldShapeView.tag; |
|
// set using the unselected image |
NSString *imageName = nil; |
imageName = [self imageNameForTag:viewTag]; |
[oldShapeView setImage:[NSImage imageNamed:imageName]]; |
|
// set using the selected image |
self.selectedShape = selectedImage.tag; |
viewTag = selectedImage.tag; |
imageName = [self imageNameForTag:viewTag]; |
imageName = [imageName stringByAppendingString:@"-selected"]; |
[selectedImage setImage:[NSImage imageNamed:imageName]]; |
|
NSLog(@"shape %ld was selected", viewTag); |
} |
|
@end |
