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Diffstat (limited to 'platform/osx/include/MGLMapViewDelegate.h')
-rw-r--r-- | platform/osx/include/MGLMapViewDelegate.h | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/platform/osx/include/MGLMapViewDelegate.h b/platform/osx/include/MGLMapViewDelegate.h new file mode 100644 index 0000000000..fcd013284d --- /dev/null +++ b/platform/osx/include/MGLMapViewDelegate.h @@ -0,0 +1,199 @@ +#import <Foundation/Foundation.h> + +#import "MGLTypes.h" + +NS_ASSUME_NONNULL_BEGIN + +@class MGLMapView; +@class MGLAnnotationImage; +@class MGLPolygon; +@class MGLPolyline; +@class MGLShape; + +/** The MGLMapViewDelegate protocol defines a set of optional methods that you + can use to receive messages from an MGLMapView instance. Because many map + operations require the MGLMapView class to load data asynchronously, the map + view calls these methods to notify your application when specific operations + complete. The map view also uses these methods to request information about + annotations displayed on the map, such as the styles and interaction modes + to apply to individual annotations. */ +@protocol MGLMapViewDelegate <NSObject> + +@optional + +#pragma mark Responding to map viewpoint changes +/** @name Responding to Map Viewpoint Changes */ + +/** Tells the delegate that the viewpoint depicted by the map view is about to + change. + + This method is called whenever the currently displayed map camera will start + changing for any reason. + + @param mapView The map view whose viewpoint will change. + @param animated Whether the change will cause an animated effect on the map. + */ +- (void)mapView:(MGLMapView *)mapView cameraWillChangeAnimated:(BOOL)animated; + +/** Tells the delegate that the viewpoint depicted by the map view is changing. + + This method is called as the currently displayed map camera changes due to + animation. During movement, this method may be called many times to report + updates to the viewpoint. Therefore, your implementation of this method + should be as lightweight as possible to avoid affecting performance. + + @param mapView The map view whose viewpoint is changing. */ +- (void)mapViewCameraIsChanging:(MGLMapView *)mapView; + +/** Tells the delegate that the viewpoint depicted by the map view has finished + changing. + + This method is called whenever the currently displayed map camera has + finished changing. + + @param mapView The map view whose viewpoint has changed. + @param animated Whether the change caused an animated effect on the map. */ +- (void)mapView:(MGLMapView *)mapView cameraDidChangeAnimated:(BOOL)animated; + +#pragma mark Loading the map +/** @name Loading the Map */ + +/** Tells the delegate that the map view will begin to load. + + This method is called whenever the map view starts loading, including when a + new style has been set and the map must reload. + + @param mapView The map view that is starting to load. */ +- (void)mapViewWillStartLoadingMap:(MGLMapView *)mapView; + +/** Tells the delegate that the map view has finished loading. + + This method is called whenever the map view finishes loading, either after + the initial load or after a style change has forced a reload. + + @param mapView The map view that has finished loading. */ +- (void)mapViewDidFinishLoadingMap:(MGLMapView *)mapView; + +- (void)mapViewWillStartRenderingMap:(MGLMapView *)mapView; +- (void)mapViewDidFinishRenderingMap:(MGLMapView *)mapView fullyRendered:(BOOL)fullyRendered; +- (void)mapViewWillStartRenderingFrame:(MGLMapView *)mapView; +- (void)mapViewDidFinishRenderingFrame:(MGLMapView *)mapView fullyRendered:(BOOL)fullyRendered; + +#pragma mark Managing the display of annotations +/** @name Managing the Display of Annotations */ + +/** Returns an annotation image object to mark the given point annotation object + on the map. + + @param mapView The map view that requested the annotation image. + @param annotation The object representing the annotation that is about to be + displayed. + @return The image object to display for the given annotation or `nil` if you + want to display the default marker image. */ +- (nullable MGLAnnotationImage *)mapView:(MGLMapView *)mapView imageForAnnotation:(id <MGLAnnotation>)annotation; + +/** Returns the alpha value to use when rendering a shape annotation. + + A value of 0.0 results in a completely transparent shape. A value of 1.0, + the default, results in a completely opaque shape. + + @param mapView The map view rendering the shape annotation. + @param annotation The annotation being rendered. + @return An alpha value between 0 and 1.0. */ +- (CGFloat)mapView:(MGLMapView *)mapView alphaForShapeAnnotation:(MGLShape *)annotation; + +/** Returns the color to use when rendering the outline of a shape annotation. + + The default stroke color is the selected menu item color. If a pattern + color is specified, the result is undefined. + + @param mapView The map view rendering the shape annotation. + @param annotation The annotation being rendered. + @return A color to use for the shape outline. */ +- (NSColor *)mapView:(MGLMapView *)mapView strokeColorForShapeAnnotation:(MGLShape *)annotation; + +/** Returns the color to use when rendering the fill of a polygon annotation. + + The default fill color is selected menu item color. If a pattern color + is specified, the result is undefined. + + @param mapView The map view rendering the polygon annotation. + @param annotation The annotation being rendered. + @return The polygon’s interior fill color. */ +- (NSColor *)mapView:(MGLMapView *)mapView fillColorForPolygonAnnotation:(MGLPolygon *)annotation; + +/** Returns the line width in points to use when rendering the outline of a + polyline annotation. + + By default, the polyline is outlined with a line 3.0 points wide. + + @param mapView The map view rendering the polygon annotation. + @param annotation The annotation being rendered. + @return A line width for the polyline, measured in points. */ +- (CGFloat)mapView:(MGLMapView *)mapView lineWidthForPolylineAnnotation:(MGLPolyline *)annotation; + +#pragma mark Selecting annotations +/** @name Selecting annotations */ + +/** Tells the delegate that one of its annotations has been selected. + + You can use this method to track changes to the selection state of + annotations. + + @param mapView The map view containing the annotation. + @param annotation The annotation that was selected. */ +- (void)mapView:(MGLMapView *)mapView didSelectAnnotation:(id <MGLAnnotation>)annotation; + +/** Tells the delegate that one of its annotations has been deselected. + + You can use this method to track changes in the selection state of + annotations. + + @param mapView The map view containing the annotation. + @param annotation The annotation that was deselected. */ +- (void)mapView:(MGLMapView *)mapView didDeselectAnnotation:(id <MGLAnnotation>)annotation; + +#pragma mark Displaying information about annotations +/** @name Displaying Information About Annotations */ + +/** Returns a Boolean value indicating whether the annotation is able to display + extra information in a callout popover. + + This method is called after an annotation is selected, before any callout is + displayed for the annotation. + + If the return value is `YES`, a callout popover is shown when the user + clicks on a selected annotation. The default callout displays the + annotation’s title and subtitle. You can customize the popover’s contents by + implementing the -mapView:calloutViewControllerForAnnotation: method. + + If the return value is `NO`, or if this method is unimplemented, or if the + annotation lacks a title, the annotation will not show a callout even when + selected. + + @param mapView The map view that has selected the annotation. + @param annotation The object representing the annotation. + @return A Boolean value indicating whether the annotation should show a + callout. + */ +- (BOOL)mapView:(MGLMapView *)mapView annotationCanShowCallout:(id <MGLAnnotation>)annotation; + +/** Returns a view controller to manage the callout popover’s content view. + + Like any instance of NSPopover, an annotation callout manages its contents + with a view controller. The annotation object is the view controller’s + represented object. This means that you can bind controls in the view + controller’s content view to KVO-compliant properties of the annotation + object, such as -title and -subtitle. + + If each annotation should have an identical callout, you can set the + MGLMapView instance’s -setCalloutViewController: method instead. + + @param mapView The map view that is requesting a callout view controller. + @param annotation The object representing the annotation. + @return A view controller for the given annotation. */ +- (nullable NSViewController *)mapView:(MGLMapView *)mapView calloutViewControllerForAnnotation:(id <MGLAnnotation>)annotation; + +@end + +NS_ASSUME_NONNULL_END |