def testReplaceItem(self): layer = QgsAnnotationLayer( 'test', QgsAnnotationLayer.LayerOptions( QgsProject.instance().transformContext())) polygon_item_id = layer.addItem( QgsAnnotationPolygonItem( QgsPolygon( QgsLineString([ QgsPoint(12, 13), QgsPoint(14, 13), QgsPoint(14, 15), QgsPoint(12, 13) ])))) linestring_item_id = layer.addItem( QgsAnnotationLineItem( QgsLineString( [QgsPoint(11, 13), QgsPoint(12, 13), QgsPoint(12, 15)]))) marker_item_id = layer.addItem( QgsAnnotationMarkerItem(QgsPoint(12, 13))) self.assertEqual( layer.item(polygon_item_id).geometry().asWkt(), 'Polygon ((12 13, 14 13, 14 15, 12 13))') self.assertEqual( layer.item(linestring_item_id).geometry().asWkt(), 'LineString (11 13, 12 13, 12 15)') self.assertEqual( layer.item(marker_item_id).geometry().asWkt(), 'POINT(12 13)') layer.replaceItem( linestring_item_id, QgsAnnotationLineItem( QgsLineString( [QgsPoint(21, 13), QgsPoint(22, 13), QgsPoint(22, 15)]))) self.assertEqual( layer.item(polygon_item_id).geometry().asWkt(), 'Polygon ((12 13, 14 13, 14 15, 12 13))') self.assertEqual( layer.item(linestring_item_id).geometry().asWkt(), 'LineString (21 13, 22 13, 22 15)') self.assertEqual( layer.item(marker_item_id).geometry().asWkt(), 'POINT(12 13)')
def test_rendered_item_results_remove_outdated(self): """ Test that outdated results are removed from rendered item result caches """ canvas = QgsMapCanvas() canvas.setDestinationCrs(QgsCoordinateReferenceSystem('EPSG:4326')) canvas.setFrameStyle(0) canvas.resize(600, 400) canvas.setCachingEnabled(True) self.assertEqual(canvas.width(), 600) self.assertEqual(canvas.height(), 400) layer = QgsAnnotationLayer( 'test', QgsAnnotationLayer.LayerOptions( QgsProject.instance().transformContext())) self.assertTrue(layer.isValid()) layer2 = QgsAnnotationLayer( 'test', QgsAnnotationLayer.LayerOptions( QgsProject.instance().transformContext())) self.assertTrue(layer2.isValid()) item = QgsAnnotationPolygonItem( QgsPolygon( QgsLineString([ QgsPoint(11.5, 13), QgsPoint(12, 13), QgsPoint(12, 13.5), QgsPoint(11.5, 13) ]))) item.setSymbol( QgsFillSymbol.createSimple({ 'color': '200,100,100', 'outline_color': 'black', 'outline_width': '2' })) item.setZIndex(1) i1_id = layer.addItem(item) item = QgsAnnotationLineItem( QgsLineString( [QgsPoint(11, 13), QgsPoint(12, 13), QgsPoint(12, 15)])) item.setZIndex(2) i2_id = layer.addItem(item) item = QgsAnnotationMarkerItem(QgsPoint(12, 13)) item.setZIndex(3) i3_id = layer2.addItem(item) layer.setCrs(QgsCoordinateReferenceSystem('EPSG:4326')) layer2.setCrs(QgsCoordinateReferenceSystem('EPSG:4326')) canvas.setLayers([layer, layer2]) canvas.setExtent(QgsRectangle(10, 10, 18, 18)) canvas.show() # need to wait until first redraw can occur (note that we first need to wait till drawing starts!) while not canvas.isDrawing(): app.processEvents() canvas.waitWhileRendering() results = canvas.renderedItemResults() self.assertCountEqual([i.itemId() for i in results.renderedItems()], [i1_id, i2_id, i3_id]) # now try modifying an annotation in the layer -- it will redraw, and we don't want to reuse any previously # cached rendered item results for this layer! item = QgsAnnotationPolygonItem( QgsPolygon( QgsLineString([ QgsPoint(11.5, 13), QgsPoint(12.5, 13), QgsPoint(12.5, 13.5), QgsPoint(11.5, 13) ]))) item.setZIndex(1) layer.replaceItem(i1_id, item) while not canvas.isDrawing(): app.processEvents() canvas.waitWhileRendering() item = QgsAnnotationMarkerItem(QgsPoint(17, 18)) item.setZIndex(3) layer2.replaceItem(i3_id, item) while not canvas.isDrawing(): app.processEvents() canvas.waitWhileRendering() results = canvas.renderedItemResults() items_in_bounds = results.renderedAnnotationItemsInBounds( QgsRectangle(10, 10, 15, 15)) self.assertCountEqual([i.itemId() for i in items_in_bounds], [i1_id, i2_id]) items_in_bounds = results.renderedAnnotationItemsInBounds( QgsRectangle(15, 15, 20, 20)) self.assertCountEqual([i.itemId() for i in items_in_bounds], [i3_id])