root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / layers / LayerDrawEvent.java @ 38581
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| 1 | 21200 | vcaballero | package org.gvsig.fmap.mapcontext.layers; |
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| 2 | |||
| 3 | import java.awt.Graphics2D; |
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| 4 | |||
| 5 | import org.gvsig.fmap.mapcontext.ViewPort; |
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| 6 | import org.gvsig.fmap.mapcontext.events.FMapEvent; |
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| 7 | 30173 | jldominguez | import org.gvsig.fmap.mapcontext.layers.vectorial.GraphicLayer; |
| 8 | 21200 | vcaballero | |
| 9 | |||
| 10 | /**
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| 11 | * <p>The <code>LayerDrawEvent</code> class represents an event produced on a layer about a drawing change.</p>
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| 12 | * <p>This event can be a notification before or after a {@link FLayer FLayer}, {@link FLayers FLayers}, or
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| 13 | * {@link GraphicLayer GraphicLayer} is drawn.</p>
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| 14 | */
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| 15 | public class LayerDrawEvent extends FMapEvent { |
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| 16 | /**
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| 17 | * <p>The view port the information for drawing the layer in which this event has been produced.</p>
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| 18 | */
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| 19 | ViewPort vp; |
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| 20 | |||
| 21 | /**
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| 22 | * <p>Reference to an object for rendering 2D on the Java(tm) platform.</p>
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| 23 | */
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| 24 | Graphics2D g;
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| 25 | |||
| 26 | /**
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| 27 | * <p>Reference to the layer where this event has been produced.</p>
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| 28 | */
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| 29 | FLayer lyr; |
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| 30 | |||
| 31 | /**
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| 32 | * Public constant that identifies the kind of <code>LayerDrawEvent</code> as an event produced
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| 33 | * before drawing on a {@link FLayer FLayer} or {@link FLayers FLayers}.
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| 34 | */
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| 35 | public static final int LAYER_BEFORE_DRAW = 101; |
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| 36 | |||
| 37 | /**
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| 38 | * Public constant that identifies the kind of <code>LayerDrawEvent</code> as an event produced
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| 39 | * after drawing on a {@link FLayer FLayer} or {@link FLayers FLayers}.
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| 40 | */
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| 41 | public static final int LAYER_AFTER_DRAW = 102; |
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| 42 | |||
| 43 | /**
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| 44 | * Public constant that identifies the kind of <code>LayerDrawEvent</code> as an event produced
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| 45 | * before drawing on a {@link GraphicLayer GraphicLayer}.
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| 46 | */
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| 47 | public static final int GRAPHICLAYER_BEFORE_DRAW = 103; |
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| 48 | |||
| 49 | /**
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| 50 | * Public constant that identifies the kind of <code>LayerDrawEvent</code> as an event produced
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| 51 | * after drawing on a {@link GraphicLayer GraphicLayer}.
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| 52 | */
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| 53 | public static final int GRAPHICLAYER_AFTER_DRAW = 104; |
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| 54 | |||
| 55 | /**
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| 56 | * <p>Creates a new layer draw event with all necessary information.</p>
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| 57 | *
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| 58 | * @param lyr layer in which the event has been produced
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| 59 | * @param g object for rendering 2D on the Java(tm) platform
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| 60 | * @param vp object with information for drawing the layer in which this event has been produced
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| 61 | * @param eventType identifies the kind of this event: {@linkplain #LAYER_BEFORE_DRAW}, {@linkplain #LAYER_AFTER_DRAW},
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| 62 | * {@linkplain #GRAPHICLAYER_BEFORE_DRAW} or {@linkplain #GRAPHICLAYER_AFTER_DRAW}.
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| 63 | */
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| 64 | public LayerDrawEvent(FLayer lyr, Graphics2D g, ViewPort vp, int eventType) { |
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| 65 | this.lyr = lyr;
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| 66 | this.g = g;
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| 67 | this.vp = vp;
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| 68 | setEventType(eventType); |
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| 69 | } |
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| 70 | |||
| 71 | /**
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| 72 | * <p>Returns an object for rendering 2-dimensional shapes, text and images on the Java(tm) platform.</p>
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| 73 | *
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| 74 | * @return object for rendering 2D on the Java(tm) platform
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| 75 | */
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| 76 | public Graphics2D getGraphics() { |
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| 77 | return g;
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| 78 | } |
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| 79 | |||
| 80 | /**
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| 81 | * <p>Returns the view port the information for drawing the layer in which this event has been produced.</p>
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| 82 | *
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| 83 | * @return object with information for drawing the layer in which this event has been produced
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| 84 | */
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| 85 | public ViewPort getViewPort() {
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| 86 | return vp;
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| 87 | } |
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| 88 | |||
| 89 | /**
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| 90 | * <p>Returns a reference to the layer where this event has been produced.</p>
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| 91 | *
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| 92 | * @return layer in which this event has been produced
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| 93 | */
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| 94 | public FLayer getLayer() {
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| 95 | return lyr;
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| 96 | } |
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| 97 | } |