SelectionDrawingSurface

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com.partnersoft.maps.render
Class SelectionDrawingSurface

java.lang.Object
  com.partnersoft.maps.render.AbstractDrawingSurface
      com.partnersoft.maps.render.SelectionDrawingSurface

All Implemented Interfaces:: DrawingSurface

public class SelectionDrawingSurface
extends AbstractDrawingSurface
extends AbstractDrawingSurface

This is the drawing surface used to determine selection hits (e.g from mouse clicks).

This surface should be created fresh for every selection operation, and its frame should be set such that it forms the bounding box for the selection region desired.

A little history: initial implementations used two different methods for Java2D and OpenGL. The specifics were stored in Java2DDrawingSurface and OpenGLDrawingSurface, respectively, and selection was essentially treated as a special case of regular drawing for those classes (which is the case in OpenGL selection anyway). Unfortunately there were performance and useability problems; having two different selection models made the modes behave differently, and speeding up OpenGL selection would have required more active culling. Also, the selection code was mixed in with drawing code, making implementations more complex than necessary.

Russell rewrote this while optimizing performance of OpenGL, especially selection, in version 4.2. Paul refactored further during 4.3 development, removing all selection code from the other classes.

Version:: $Id: SelectionDrawingSurface.java 2328 2010-01-06 15:38:22Z paul $
Author:: Russell Cagle, Paul Reavis

Field Summary

Fields inherited from class com.partnersoft.maps.render.AbstractDrawingSurface
`backgroundColor, currentImageStyle, currentMapSet, currentPointStyle, currentPolygonStyle, currentPolylineStyle, currentTextStyle, foregroundColor, invisiblePolylineStyle, printing, renderImageStyle, renderMode, renderPointStyle, renderPolygonStyle, renderPolylineStyle, renderQuality, renderTextStyle, showInvisibleGraphics`

Fields inherited from interface com.partnersoft.maps.render.DrawingSurface
`QUALITY_GOOD, QUALITY_OK, QUALITY_POOR, RENDER_EPHEMERA, RENDER_INDICATION, RENDER_RASTER, RENDER_RETICLE, RENDER_SELECTION, RENDER_VECTOR`

Constructor Summary
`SelectionDrawingSurface(MapViewFrame frame)`

Method Summary
`void`	`clear()`
`void`	`drawImage(int dataID, double x, double y, int offsetX, int offsetY, int rotation, ImageSource image, double scale, int pixelsWide, int pixelsHigh)`
`void`	`drawPoint(int dataID, double x, double y, int offsetX, int offsetY, int rotation)`
`void`	`drawPolygon(int dataID, DoubleBuffer coords)`
`void`	`drawPolygon(int dataID, DynamicDoubleArray coords)`
`void`	`drawPolyline(int dataID, DoubleBuffer coords)`
`void`	`drawRasterImage(RasterImage image)`
`void`	`drawText(int dataID, double x, double y, int offsetX, int offsetY, int rotation, int alignment, java.lang.String text)`
`void`	`drawWheelMenu(WheelMenu menu)`
`void`	`drawWheelMenuCenter(WheelMenu menu)`
`void`	`endTile()`
`int[][]`	`getSelections()`
`boolean`	`isDirty()`
`void`	`popName()`
`void`	`pushName(int i)`
`void`	`setTextStyle(int style)`
`void`	`startDrawing()`
`void`	`startTile(RoverBytes bytes)` Sets up the transformations for the coordinates that are coming in.
`void`	`stopDrawing()`

Methods inherited from class com.partnersoft.maps.render.AbstractDrawingSurface
copyBackBuffer, displayListFor, displayListFor, drawDisplayList, drawLiteralPoints, drawPolyline, drawPolyline, endDisplayList, isBackBufferSupported, isDisplayListSupported, isDrawingToBackBuffer, popState, pushState, removeDisplayList, setBackgroundColor, setDrawingToBackBuffer, setForegroundColor, setFrame, setImageStyle, setImageStyle, setImageStyle, setMapSet, setPointStyle, setPointStyle, setPointStyle, setPolygonStyle, setPolygonStyle, setPolygonStyle, setPolylineStyle, setPolylineStyle, setPolylineStyle, setPrinting, setRenderMode, setRenderQuality, setRenderScaleRegion, setShowInvisibleGraphics, setTextStyle, setTextStyle, startDisplayList, startDisplayList

Methods inherited from class com.partnersoft.maps.render.AbstractDrawingSurface

copyBackBuffer, displayListFor, displayListFor, drawDisplayList, drawLiteralPoints, drawPolyline, drawPolyline, endDisplayList, isBackBufferSupported, isDisplayListSupported, isDrawingToBackBuffer, popState, pushState, removeDisplayList, setBackgroundColor, setDrawingToBackBuffer, setForegroundColor, setFrame, setImageStyle, setImageStyle, setImageStyle, setMapSet, setPointStyle, setPointStyle, setPointStyle, setPolygonStyle, setPolygonStyle, setPolygonStyle, setPolylineStyle, setPolylineStyle, setPolylineStyle, setPrinting, setRenderMode, setRenderQuality, setRenderScaleRegion, setShowInvisibleGraphics, setTextStyle, setTextStyle, startDisplayList, startDisplayList

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail