IViewer.h

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//
//  IViewer.h
//  IPadDashboardViewer
//
//  Created by bhuang on 3/23/10.
//  Copyright 2010 __MyCompanyName__. All rights reserved.
//

#import "Enums.h"

@class DataModel;
@class Commander;

@protocol IViewer

- (void)detachViewer;

@optional
- (void)handleEvent:(NSString*)ipEventName;
- (CGFloat)getMeasuredWidth;
- (CGFloat)getMeasuredHeight;
- (void)evaluateConditionalTransactionThreshold;
- (void)measure;

- (NSString*)getViewerID;

- (NSData*)getViewerStatus;

@end


@class ViewerDataModel;
@protocol MSICommanderDelegate;
@protocol IWidgetProtocol <IViewer>


- (id)initViewer:(ViewerDataModel*)_viewerDataModel withCommanderDelegate:(id<MSICommanderDelegate>)_commander withProps:(NSString*)_props;

+ (MSTROrientation)supportedOrientation;

- (void) addViewToBaseView:(UIView*)view;

- (void)displayError:(NSString*)errorMessage;

- (BOOL)supportsFitToScreen;

@end

@protocol WidgetGridSwitchProtocol<NSObject, NSCoding> //this function only available when you use the widget to run a report
- (void)quickSwitchToGrid;
- (void)quickSwitchToWidget;

- (void)cleanViews;
- (void)recreateWidget;

/*
 call rgus method when controller will reuse widget; if return YES, this widget could be reuse, otherwise not.
 */
- (BOOL) finishedFirstRendering;

//Used if the widget needs second dataset as the data source, else no need to override
- (void)requestSecondaryDataModel:(NSString*)nodeKey;

@end