private void map_MapRendered(Graphics g)
{
// TODO: review, migrated from GeometryEditor
if (g == null)
{
return;
}
//UserLayer.Render(g, this.mapbox.Map);
// always draw trackers when they exist -> full redraw when trackers are deleted
SelectTool.Render(g, Map);
zoomHistoryTool.MapRendered(Map);
}
public void ZoomHistory()
{
const double cToleranceZoom = 0.001;
// Setup test environment
EventedList <IMapTool> tools = new EventedList <IMapTool>();
MapControl mapControl = new MapControl();
ZoomHistoryTool zoomHistoryToolMapTool = new ZoomHistoryTool(mapControl);
zoomHistoryToolMapTool = new ZoomHistoryTool(mapControl);
tools.Add(zoomHistoryToolMapTool);
// First rendering is ignored
mapControl.Map.Zoom = 1.0;
mapControl.Map.Center = new Coordinate(0.1, 0.2);
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(0, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
// First recorded rendering
mapControl.Map.Zoom = 1.1;
mapControl.Map.Center = new Coordinate(1.2, 1.3);
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(1, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
// Undo and redo the zoom
zoomHistoryToolMapTool.PreviousZoomState();
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(0, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(1, zoomHistoryToolMapTool.RedoCount);
Assert.AreEqual(1.0, mapControl.Map.Zoom, cToleranceZoom);
Assert.AreEqual(0.1, mapControl.Map.Center.X, cToleranceZoom);
Assert.AreEqual(0.2, mapControl.Map.Center.Y, cToleranceZoom);
zoomHistoryToolMapTool.NextZoomState();
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(1, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
Assert.AreEqual(1.1, mapControl.Map.Zoom, cToleranceZoom);
Assert.AreEqual(1.2, mapControl.Map.Center.X, cToleranceZoom);
Assert.AreEqual(1.3, mapControl.Map.Center.Y, cToleranceZoom);
// Second recorded rendering
mapControl.Map.Zoom = 2.1;
mapControl.Map.Center = new Coordinate(2.2, 2.3);
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(2, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
// Third recorded rendering
mapControl.Map.Zoom = 3.1;
mapControl.Map.Center = new Coordinate(3.2, 3.3);
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(3, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
// Fourth recorded rendering
mapControl.Map.Zoom = 4.1;
mapControl.Map.Center = new Coordinate(4.2, 4.3);
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(4, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
// Undo 2 times and redo 2 times
Assert.AreEqual(4, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(0, zoomHistoryToolMapTool.RedoCount);
zoomHistoryToolMapTool.PreviousZoomState();
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(3.1, mapControl.Map.Zoom, cToleranceZoom);
Assert.AreEqual(3.2, mapControl.Map.Center.X, cToleranceZoom);
Assert.AreEqual(3.3, mapControl.Map.Center.Y, cToleranceZoom);
Assert.AreEqual(3, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(1, zoomHistoryToolMapTool.RedoCount);
zoomHistoryToolMapTool.PreviousZoomState();
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(2.1, mapControl.Map.Zoom, cToleranceZoom);
Assert.AreEqual(2.2, mapControl.Map.Center.X, cToleranceZoom);
Assert.AreEqual(2.3, mapControl.Map.Center.Y, cToleranceZoom);
Assert.AreEqual(2, zoomHistoryToolMapTool.UndoCount);
Assert.AreEqual(2, zoomHistoryToolMapTool.RedoCount);
zoomHistoryToolMapTool.NextZoomState();
zoomHistoryToolMapTool.MapRendered(mapControl.Map);
Assert.AreEqual(3.1, mapControl.Map.Zoom, cToleranceZoom);
Assert.AreEqual(3.2, mapControl.Map.Center.X, cToleranceZoom);
Assert.AreEqual(3.3, mapControl.Map.Center.Y, cToleranceZoom);
}
