Customisation of color in month planner and events

CalendarDemo/MonthViewController.m

@@ -19,6 +19,8 @@ - (void)viewDidLoad
 {
     [super viewDidLoad];
     //self.monthPlannerView.dateFormat = @"dd MMM\nYYYY";
+
+    self.monthPlannerView.allowCustomDayBackgroundColor = YES;
 }
 
 #pragma mark - MGCMonthPlannerViewController
@@ -75,6 +77,23 @@ - (NSAttributedString*)monthPlannerView:(MGCMonthPlannerView *)view attributedSt
     return attrStr;
 }
 
+- (UIColor*)monthPlannerView:(MGCMonthPlannerView*)view colorForDayCellAtDate:(NSDate*)date
+{
+    NSDateComponents *component = [self.calendar components:NSCalendarUnitWeekday fromDate:date];
+    NSInteger weekday = [component weekday];
+
+    if ([self.calendar isDateInWeekend:date]) {
+        return view.weekendDayBackgroundColor;
+    } else {
+        if (weekday % 2 == 0) {
+             return [UIColor grayColor];
+        } else {
+             return [UIColor whiteColor];
+        }
+    }
+}
+
+
 #pragma mark - CalendarViewControllerNavigation
 
 - (NSDate*)centerDate

CalendarLib/MGCDayPlannerEKViewController.m

@@ -366,7 +366,8 @@ - (MGCEventView*)dayPlannerView:(MGCDayPlannerView*)view viewForEventOfType:(MGC
     evCell.font = [UIFont systemFontOfSize:11];
     evCell.title = ev.title;
     evCell.subtitle = ev.location;
-    evCell.color = [UIColor colorWithCGColor:ev.calendar.CGColor];
+    evCell.eventNormalBackgroundColor = [UIColor colorWithCGColor:ev.calendar.CGColor];
+    evCell.eventSelectedBackgroundColor = [UIColor colorWithCGColor:ev.calendar.CGColor];
     evCell.style = MGCStandardEventViewStylePlain|MGCStandardEventViewStyleSubtitle;
     evCell.style |= (type == MGCAllDayEventType) ?: MGCStandardEventViewStyleBorder;
     return evCell;
@@ -424,7 +425,8 @@ - (MGCEventView*)dayPlannerView:(MGCDayPlannerView*)view viewForNewEventOfType:(
 
     MGCStandardEventView *evCell = [MGCStandardEventView new];
     evCell.title = NSLocalizedString(@"New Event", nil);
-    evCell.color = [UIColor colorWithCGColor:defaultCalendar.CGColor];
+    evCell.eventNormalBackgroundColor = [UIColor colorWithCGColor:defaultCalendar.CGColor];
+    evCell.eventSelectedBackgroundColor = [UIColor colorWithCGColor:defaultCalendar.CGColor];
     return evCell;
 }
 

CalendarLib/MGCMonthPlannerEKViewController.m

@@ -390,7 +390,8 @@ - (MGCEventView*)monthPlannerView:(MGCMonthPlannerView*)view cellForEventAtIndex
 		evCell.title = ev.title;
 		evCell.subtitle = ev.location;
 		evCell.detail = [self.dateFormatter stringFromDate:ev.startDate];
-		evCell.color = [UIColor colorWithCGColor:ev.calendar.CGColor];
+        evCell.eventNormalBackgroundColor = [UIColor colorWithCGColor:ev.calendar.CGColor];
+        evCell.eventSelectedBackgroundColor = [UIColor colorWithCGColor:ev.calendar.CGColor];
 
 		NSDate *start = [self.calendar mgc_startOfDayForDate:ev.startDate];
 		NSDate *end = [self.calendar mgc_nextStartOfDayForDate:ev.endDate];
@@ -416,7 +417,8 @@ - (MGCEventView*)monthPlannerView:(MGCMonthPlannerView*)view cellForNewEventAtDa
 
     MGCStandardEventView *evCell = [MGCStandardEventView new];
     evCell.title = NSLocalizedString(@"New Event", nil);
-    evCell.color = [UIColor colorWithCGColor:defaultCalendar.CGColor];
+    evCell.eventNormalBackgroundColor = [UIColor colorWithCGColor:defaultCalendar.CGColor];
+    evCell.eventSelectedBackgroundColor = [UIColor colorWithCGColor:defaultCalendar.CGColor];
     return evCell;
 }
 

CalendarLib/MGCMonthPlannerView.h

@@ -221,6 +221,12 @@ typedef NS_ENUM(NSUInteger, MGCMonthPlannerScrollAlignment) {
  */
 @property (nonatomic) BOOL canMoveEvents;
 
+/*!
+	@abstract	Determines whether an day can have different background color.
+	@discussion The default value is NO.
+ */
+@property (nonatomic) BOOL allowCustomDayBackgroundColor;
+
 /*!
 	@abstract	The object that provides the data for the month planner view
 	@discussion The data source must adopt the `MGCMonthPlannerViewDataSource` protocol.
@@ -463,6 +469,14 @@ typedef NS_ENUM(NSUInteger, MGCMonthPlannerScrollAlignment) {
  */
 - (BOOL)monthPlannerView:(MGCMonthPlannerView*)view canMoveCellForEventAtIndex:(NSUInteger)index date:(NSDate*)date;
 
+/*!
+    @abstract Asks the data source for the color that corresponds to the specified date in the month planner view.
+    @discussion This method is not called when allowCustomDayBackgroundColor property is set to NO.
+
+ */
+- (UIColor*)monthPlannerView:(MGCMonthPlannerView*)view colorForDayCellAtDate:(NSDate*)date;
+
+
 @end
 
 /*!

CalendarLib/MGCMonthPlannerView.m

@@ -123,6 +123,7 @@ - (void)setup
     _selectedEventDate = nil;
     _canCreateEvents = YES;
     _canMoveEvents = YES;
+    _allowCustomDayBackgroundColor = NO;
     _calendarBackgroundColor   = [UIColor whiteColor];
     _weekDayBackgroundColor    = [UIColor whiteColor];
     _weekendDayBackgroundColor = [UIColor colorWithWhite:.97 alpha:.8];
@@ -1399,6 +1400,10 @@ - (UICollectionViewCell*)collectionView:(UICollectionView*)collectionView cellFo
     cell.dayLabel.attributedText = attrStr;
     cell.backgroundColor = [self.calendar isDateInWeekend:date] ? self.weekendDayBackgroundColor : self.weekDayBackgroundColor;
 
+    if ([self.dataSource respondsToSelector:@selector(monthPlannerView:colorForDayCellAtDate:)] && self.allowCustomDayBackgroundColor) {
+        cell.backgroundColor = [self.dataSource monthPlannerView:self colorForDayCellAtDate:date];
+    }
+
     if (self.style & MGCMonthPlannerStyleDots) {
         NSUInteger eventsCounts = [self.dataSource monthPlannerView:self numberOfEventsAtDate:date];
         cell.showsDot = eventsCounts > 0;

CalendarLib/MGCStandardEventView.h

@@ -58,8 +58,14 @@ typedef NS_OPTIONS(NSUInteger, MGCStandardEventViewStyle) {
 /*! Detail - displayed with a smaller font and right aligned. */
 @property (nonatomic, copy)	NSString *detail;
 
-/*! The color is used for background or text, depending on the style. */
-@property (nonatomic) UIColor *color;
+/*! The color is used for text, depending on the style. */
+@property (nonatomic) UIColor *textColor;
+
+/*! The color is used for background, depending on the style. */
+@property (nonatomic) UIColor *eventNormalBackgroundColor;
+
+/*! The color is used for selected background, depending on the style. */
+@property (nonatomic) UIColor *eventSelectedBackgroundColor;
 
 /*! Style of the view. */
 @property (nonatomic) MGCStandardEventViewStyle style;

CalendarLib/MGCStandardEventView.m

@@ -49,7 +49,9 @@ - (instancetype)initWithFrame:(CGRect)frame
     if (self = [super initWithFrame:frame]) {
 		self.contentMode = UIViewContentModeRedraw;
 
-		_color = [UIColor blackColor];
+		_textColor = [UIColor blackColor];
+        _eventNormalBackgroundColor = [UIColor lightGrayColor];
+        _eventSelectedBackgroundColor = [UIColor grayColor];
 		_style = MGCStandardEventViewStylePlain|MGCStandardEventViewStyleSubtitle;
 		_font = [UIFont systemFontOfSize:[UIFont smallSystemFontSize]];
 		_leftBorderView = [[UIView alloc]initWithFrame:CGRectNull];
@@ -94,7 +96,7 @@ - (void)redrawStringInRect:(CGRect)rect
 	//style.lineBreakMode = NSLineBreakByTruncatingMiddle;
 	[as addAttribute:NSParagraphStyleAttributeName value:style range:NSMakeRange(0, as.length)];
 
-	UIColor *color = self.selected ? [UIColor whiteColor] : self.color;
+	UIColor *color = self.selected ? [UIColor whiteColor] : self.textColor;
 	[as addAttribute:NSForegroundColorAttributeName value:color range:NSMakeRange(0, as.length)];
 
 	self.attrString = as;
@@ -110,7 +112,7 @@ - (void)layoutSubviews
 
 - (void)setColor:(UIColor*)color
 {
-	_color = color;
+	_textColor = color;
 	[self resetColors];
 }
 
@@ -123,12 +125,12 @@ - (void)setStyle:(MGCStandardEventViewStyle)style
 
 - (void)resetColors
 {
-	self.leftBorderView.backgroundColor = self.color;
+	self.leftBorderView.backgroundColor = self.textColor;
 
 	if (self.selected)
-		self.backgroundColor = self.selected ? self.color : [self.color colorWithAlphaComponent:.3];
+		self.backgroundColor = self.selected ? self.eventSelectedBackgroundColor : self.eventNormalBackgroundColor;
 	else if (self.style & MGCStandardEventViewStylePlain)
-		self.backgroundColor = [self.color colorWithAlphaComponent:.3];
+		self.backgroundColor = self.eventNormalBackgroundColor;
 	else
 		self.backgroundColor = [UIColor clearColor];
 
@@ -181,7 +183,9 @@ - (id)copyWithZone:(NSZone *)zone
 	cell.title = self.title;
 	cell.subtitle = self.subtitle;
 	cell.detail = self.detail;
-	cell.color = self.color;
+	cell.textColor = self.textColor;
+    cell.eventNormalBackgroundColor = self.eventNormalBackgroundColor;
+    cell.eventSelectedBackgroundColor = self.eventSelectedBackgroundColor;
 	cell.style = self.style;
 
 	return cell;