Initial commit after separated from Fontcase

BCCollectionView+Keyboard.h

@@ -0,0 +1,25 @@
+//
+//  BCCollectionView+Keyboard.h
+//  Fontcase
+//
+//  Created by Pieter Omvlee on 25/11/2010.
+//  Copyright 2010 Bohemian Coding. All rights reserved.
+//
+
+#import "BCCollectionView.h"
+
+@interface BCCollectionView (BCCollectionView_Keyboard)
+- (void)keyDown:(NSEvent *)theEvent;
+
+- (void)moveLeft:(id)sender;
+- (void)moveLeftAndModifySelection:(id)sender;
+
+- (void)moveRight:(id)sender;
+- (void)moveRightAndModifySelection:(id)sender;
+
+- (void)moveUp:(id)sender;
+- (void)moveUpAndModifySelection:(id)sender;
+
+- (void)moveDown:(id)sender;
+- (void)moveDownAndModifySelection:(id)sender;
+@end

BCCollectionView+Keyboard.m

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+//
+//  BCCollectionView+Keyboard.m
+//  Fontcase
+//
+//  Created by Pieter Omvlee on 25/11/2010.
+//  Copyright 2010 Bohemian Coding. All rights reserved.
+//
+
+#import "BCCollectionView+Keyboard.h"
+
+@implementation BCCollectionView (BCCollectionView_Keyboard)
+
+- (void)keyDown:(NSEvent *)theEvent
+{
+  [self interpretKeyEvents:[NSArray arrayWithObject:theEvent]];
+}
+
+- (void)moveLeft:(id)sender
+{
+  NSUInteger index = lastSelectionIndex;
+  if (index % [self numberOfItemsPerRow] != 0) {
+    [self deselectAllItems];
+    [self selectItemAtIndex:index-1];
+  }
+}
+
+- (void)moveLeftAndModifySelection:(id)sender
+{
+  if (lastSelectionIndex % [self numberOfItemsPerRow] != 0) {
+    NSUInteger index = lastSelectionIndex-1;
+    if ([selectionIndexes containsIndex:index])
+      [self deselectItemAtIndex:lastSelectionIndex];
+    else
+      [self selectItemAtIndex:index];
+    self.lastSelectionIndex = index;
+  }
+}
+
+- (void)moveRight:(id)sender
+{
+  NSUInteger index = lastSelectionIndex;
+  if (index % [self numberOfItemsPerRow] != [self numberOfItemsPerRow]-1) {
+    [self deselectAllItems];
+    [self selectItemAtIndex:index+1];
+  }
+}
+
+- (void)moveRightAndModifySelection:(id)sender
+{
+  if (lastSelectionIndex % [self numberOfItemsPerRow] != [self numberOfItemsPerRow]-1) {
+    NSUInteger index = lastSelectionIndex+1;
+    if ([selectionIndexes containsIndex:index])
+      [self deselectItemAtIndex:lastSelectionIndex];
+    else
+      [self selectItemAtIndex:index];
+    self.lastSelectionIndex = index;
+  }
+}
+
+- (void)moveUp:(id)sender
+{
+  NSUInteger index = lastSelectionIndex;
+  if (index > [self numberOfItemsPerRow]-1) {
+    [self deselectAllItems];
+    [self selectItemAtIndex:index-[self numberOfItemsPerRow]];
+  }
+}
+
+- (void)moveUpAndModifySelection:(id)sender
+{
+  if (lastSelectionIndex > [self numberOfItemsPerRow]-1) {
+    NSUInteger index = lastSelectionIndex - [self numberOfItemsPerRow];
+    NSRange range    = NSMakeRange(index, [self numberOfItemsPerRow]);
+    if ([selectionIndexes containsIndex:index]) {
+      range.location++;
+      [self deselectItemsAtIndexes:[NSIndexSet indexSetWithIndexesInRange:range]];
+    } else
+      [self selectItemsAtIndexes:[NSIndexSet indexSetWithIndexesInRange:range]];
+    self.lastSelectionIndex = index;
+  }
+}
+
+- (void)moveDown:(id)sender
+{
+  NSUInteger index = lastSelectionIndex;
+  if (index + [self numberOfItemsPerRow] < [contentArray count]) {
+    [self deselectAllItems];
+    [self selectItemAtIndex:index + [self numberOfItemsPerRow]];
+  }
+}
+
+- (void)moveDownAndModifySelection:(id)sender
+{
+  NSUInteger index = lastSelectionIndex;
+  if (index + [self numberOfItemsPerRow] < [contentArray count]) {
+    NSUInteger index = lastSelectionIndex + [self numberOfItemsPerRow];
+    NSRange range    = NSMakeRange(lastSelectionIndex, [self numberOfItemsPerRow]);
+    if ([selectionIndexes containsIndex:index])
+      [self deselectItemsAtIndexes:[NSIndexSet indexSetWithIndexesInRange:range]];
+    else {
+      range.length++;
+      [self selectItemsAtIndexes:[NSIndexSet indexSetWithIndexesInRange:range]];
+    }
+    self.lastSelectionIndex = index;
+  }
+}
+
+@end

BCCollectionView+Mouse.h

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+//
+//  BCCollectionView+Mouse.h
+//  Fontcase
+//
+//  Created by Pieter Omvlee on 25/11/2010.
+//  Copyright 2010 Bohemian Coding. All rights reserved.
+//
+
+#import "BCCollectionView.h"
+
+@interface BCCollectionView (BCCollectionView_Mouse)
+- (void)mouseDown:(NSEvent *)theEvent;
+- (void)mouseDragged:(NSEvent *)theEvent;
+- (void)mouseUp:(NSEvent *)theEvent;
+
+- (BOOL)shiftOrCommandKeyPressed;
+@end

BCCollectionView+Mouse.m

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+//
+//  BCCollectionView+Mouse.m
+//  Fontcase
+//
+//  Created by Pieter Omvlee on 25/11/2010.
+//  Copyright 2010 Bohemian Coding. All rights reserved.
+//
+
+#import "BCCollectionView+Mouse.h"
+#import "BCGeometryExtensions.h"
+
+@implementation BCCollectionView (BCCollectionView_Mouse)
+
+- (BOOL)shiftOrCommandKeyPressed
+{
+  return [NSEvent modifierFlags] & NSShiftKeyMask || [NSEvent modifierFlags] & NSCommandKeyMask;
+}
+
+- (void)mouseDown:(NSEvent *)theEvent
+{
+  [[self window] makeFirstResponder:self];
+
+  if (![self shiftOrCommandKeyPressed])
+    [self deselectAllItems];
+
+  self.originalSelectionIndexes = [[selectionIndexes copy] autorelease];
+
+  mouseDownLocation    = [self convertPoint:[theEvent locationInWindow] fromView:nil];
+  mouseDraggedLocation = mouseDownLocation;
+
+  NSUInteger index = [self indexOfItemAtPoint:mouseDownLocation];
+  if ([self shiftOrCommandKeyPressed] && [self.originalSelectionIndexes containsIndex:index])
+    [self deselectItemAtIndex:index];
+  else
+    [self selectItemAtIndex:index];
+}
+
+- (void)mouseDragged:(NSEvent *)theEvent
+{
+  [self deselectAllItems];
+  if ([self shiftOrCommandKeyPressed]) {
+    [self.originalSelectionIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
+      [self selectItemAtIndex:idx];
+    }];
+  }
+  [self setNeedsDisplayInRect:BCRectFromTwoPoints(mouseDownLocation, mouseDraggedLocation)];
+
+  mouseDraggedLocation = [self convertPoint:[theEvent locationInWindow] fromView:nil];
+
+  NSIndexSet *newIndexes = [self indexesOfItemsInRect:BCRectFromTwoPoints(mouseDownLocation, mouseDraggedLocation)];
+  [newIndexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL *stop) {
+    if ([self.originalSelectionIndexes containsIndex:idx])
+      [self deselectItemAtIndex:idx];
+    else
+      [self selectItemAtIndex:idx];
+  }];
+
+  [self setNeedsDisplayInRect:BCRectFromTwoPoints(mouseDownLocation, mouseDraggedLocation)];
+}
+
+- (void)mouseUp:(NSEvent *)theEvent
+{
+  [self setNeedsDisplayInRect:BCRectFromTwoPoints(mouseDownLocation, mouseDraggedLocation)];
+
+  mouseDownLocation    = NSZeroPoint;
+  mouseDraggedLocation = NSZeroPoint;
+
+  self.originalSelectionIndexes = nil;
+}
+
+@end

BCCollectionView.h

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+//
+//  BCCollectionView.h
+//  Fontcase
+//
+//  Created by Pieter Omvlee on 24/11/2010.
+//  Copyright 2010 Bohemian Coding. All rights reserved.
+//
+
+#import <Cocoa/Cocoa.h>
+#import "BCCollectionViewDelegate.h"
+
+@interface BCCollectionView : NSView
+{
+  IBOutlet id<BCCollectionViewDelegate> delegate;
+
+  NSArray *contentArray;
+
+  NSMutableArray      *reusableViewControllers;
+  NSMutableDictionary *visibleViewControllers;
+
+  NSMutableIndexSet *selectionIndexes;
+  NSIndexSet *originalSelectionIndexes;
+
+  NSPoint mouseDownLocation;
+  NSPoint mouseDraggedLocation;
+
+  NSColor *backgroundColor;
+
+  NSUInteger lastSelectionIndex;
+}
+@property (nonatomic, assign) id<BCCollectionViewDelegate> delegate;
+@property (nonatomic, retain) NSColor *backgroundColor;
+
+//by setting the contentArray, the view will load itself up.
+@property (nonatomic, copy) NSArray *contentArray;
+
+//private
+@property (nonatomic, copy) NSIndexSet *originalSelectionIndexes;
+@property (nonatomic) NSUInteger lastSelectionIndex;
+
+- (void)reloadData;
+
+//Managing Selections
+- (void)selectItemAtIndex:(NSUInteger)index;
+- (void)selectItemsAtIndexes:(NSIndexSet *)indexes;
+- (void)deselectItemAtIndex:(NSUInteger)index;
+- (void)deselectItemsAtIndexes:(NSIndexSet *)indexes;
+- (void)deselectAllItems;
+
+//Basic Cell Information
+- (NSUInteger)numberOfRows;
+- (NSUInteger)numberOfItemsPerRow;
+- (NSSize)cellSize;
+- (NSRect)rectOfItemAtIndex:(NSUInteger)anIndex;
+- (NSIndexSet *)indexesOfItemsInRect:(NSRect)aRect;
+- (NSUInteger)indexOfItemAtPoint:(NSPoint)p;
+- (NSUInteger)indexOfItemAtPointOrClosestGuess:(NSPoint)p;
+
+//Querying ViewControllers
+- (NSIndexSet *)indexesOfViewControllers;
+- (NSIndexSet *)indexesOfInvisibleViewControllers;
+@end