class SelectArea(QLabel):
doneSignal = pyqtSignal(QPixmap)
def __init__(self, *args, **kwargs):
super(SelectArea, self).__init__(*args, **kwargs)
self.pixmap = take_screenshot()
self.setPixmap(self.pixmap)
self.setCursor(Qt.CrossCursor)
self.setWindowFlags(Qt.WindowStaysOnTopHint | Qt.FramelessWindowHint)
self.showFullScreen()
self.move(0, 0)
self.resize(self.pixmap.size())
self.selected = QRect(0, 0, 0, 0)
self.first_point = None
def paintEvent(self, event):
super(SelectArea, self).paintEvent(event)
painter = QPainter(self)
drawRegion = QRegion(self.pixmap.rect())
drawRegion = drawRegion.subtract(QRegion(self.selected))
painter.setClipRegion(drawRegion)
painter.setBrush(QBrush(QColor(0, 0, 0, 120)))
painter.drawRect(self.pixmap.rect())
painter.setClipping(False)
if self.selected:
# направляющие линии
painter.setPen(QPen(QColor(255, 255, 255)))
painter.setBrush(QBrush(QColor(0, 0, 0, 0)))
vertical = self.selected.normalized()
vertical.setLeft(-1)
vertical.setRight(self.pixmap.rect().right() + 1)
horizontal = self.selected.normalized()
horizontal.setTop(-1)
horizontal.setBottom(self.pixmap.rect().bottom() + 1)
painter.drawRects(
vertical,
horizontal
)
# координаты начала
bound = self.pixmap.rect()
bound.setBottomRight(self.selected.topLeft() - QPoint(5, 5))
painter.drawText(
bound,
Qt.AlignBottom | Qt.AlignRight,
'(%d, %d)' % (self.selected.topLeft().x(), self.selected.topLeft().y())
)
# ширина/высота
bound = self.pixmap.rect()
bound.setTopLeft(self.selected.bottomRight() + QPoint(5, 5))
painter.drawText(
bound,
Qt.AlignTop | Qt.AlignLeft,
'(%d, %d)' % (self.selected.width(), self.selected.height())
)
def keyPressEvent(self, event):
key = event.key()
if key == Qt.Key_Escape:
self.close()
def mousePressEvent(self, event):
self.first_point = event.pos()
self.selected.setTopLeft(self.first_point)
def mouseMoveEvent(self, event):
self.move_selection(event.pos())
def mouseReleaseEvent(self, event):
self.move_selection(event.pos())
self.finish()
def move_selection(self, now_point):
self.selected = QRect(self.first_point, now_point).normalized()
self.update()
def finish(self):
self.doneSignal.emit(self.pixmap.copy(self.selected))
self.close()
class InfoTool(TouchMapTool):
infoResults = pyqtSignal(dict)
def __init__(self, canvas, snapradius=2):
super(InfoTool, self).__init__(canvas)
self.radius = snapradius
self.band = QgsRubberBand(self.canvas)
self.band.setColor(QColor.fromRgb(224, 162, 16))
self.band.setWidth(3)
self.selectband = None
self.selectrect = QRect()
self.dragging = False
self.selectionlayers = []
def getFeatures(self, rect):
self.band.reset()
for layer in self.selectionlayers.itervalues():
if (not layer.type() == QgsMapLayer.VectorLayer
or layer.geometryType() == QGis.NoGeometry):
continue
rect = self.toLayerCoordinates(layer, rect)
rq = QgsFeatureRequest().setFilterRect(rect)\
.setFlags(QgsFeatureRequest.ExactIntersect)\
.setSubsetOfAttributes([])
features = []
for feature in layer.getFeatures(rq):
if feature.isValid():
features.append(feature)
yield layer, features
def toSearchRect(self, point):
searchRadius = self.canvas.extent().width() * (self.radius / 100.0)
point = self.toMapCoordinates(point)
rect = QgsRectangle()
rect.setXMinimum(point.x() - searchRadius)
rect.setXMaximum(point.x() + searchRadius)
rect.setYMinimum(point.y() - searchRadius)
rect.setYMaximum(point.y() + searchRadius)
return rect
def canvasPressEvent(self, event):
if self.pinching:
return
self.dragging = False
self.selectrect.setRect(0, 0, 0, 0)
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon)
self.selectband.setColor(QColor.fromRgb(0, 0, 255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if self.pinching:
return
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.selectrect.setTopLeft(event.pos())
self.dragging = True
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect,
self.selectband)
def canvasReleaseEvent(self, event):
if self.pinching:
return
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
else:
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
results = OrderedDict((l, f) for l, f in self.getFeatures(rect))
self.infoResults.emit(results)
class ImageAreaSelector (QtGui.QWidget):
'''This widget provides means to visually crop a portion of
an image by selecting it'''
# pylint: disable=W0612
NAME = 'ImageAreaSelector'
DESCRIPTION = 'A widget used to select part of an image'
AUTHOR = 'Gabriele "Whisky" Visconti'
WEBSITE = ''
# pylint: enable=W0612
selection_changed = QtCore.pyqtSignal()
def __init__(self, pixmap, parent=None):
'''Constructor'''
QtGui.QWidget.__init__(self, parent)
self._pixmap = pixmap
self._selection_rect = QRect()
self._image_origin = QPoint()
self._resize_start = None
self._drag_start = None
self._handle_size = QSize(-10, -10)
self._painter = QtGui.QPainter()
self._hl_color1 = QtGui.QPalette().color(QtGui.QPalette.Highlight)
self._hl_color2 = QtGui.QPalette().color(QtGui.QPalette.Highlight)
self._hl_color2.setAlpha(150)
self._zoom = 1.0
self.adjust_minum_size()
self.setBackgroundRole(QtGui.QPalette.Dark)
self.setMouseTracking(True)
self.setCursor(Qt.CrossCursor)
# -------------------- [BEGIN] QT_OVERRIDE
def mousePressEvent (self, event):
'''Overrides QWidget's mousePressEvent. Handles starting
a new selection, starting a drag operation'''
# pylint: disable=C0103
mouse_pos = event.pos() / self._zoom
sel_rect = self._selection_rect
if not event.button() == Qt.LeftButton:
return
if (not sel_rect.isNull()) and sel_rect.contains(mouse_pos, True):
handle_rect = QRect(sel_rect.bottomRight(), self._handle_size)
if handle_rect.contains(mouse_pos):
self._resize_start = mouse_pos
else:
self._drag_start = mouse_pos
else:
self._resize_start = mouse_pos
sel_rect.setTopLeft (mouse_pos)
self._selection_rect.setSize(QSize(0, 0))
def mouseMoveEvent (self, event):
'''Overrides QWidget's mouseMoveEvent. Handles resizing
and dragging operations on selection'''
# pylint: disable=C0103
sel_rect = self._selection_rect
if self._resize_start:
resize_end = event.pos() / self._zoom
sel_rect.setBottomRight(sel_rect.bottomRight() +
(resize_end - self._resize_start))
self._resize_start = resize_end
self.make_selection_square()
self.update()
elif self._drag_start is not None:
drag_end = event.pos() / self._zoom
sel_rect.translate(drag_end - self._drag_start)
self._drag_start = drag_end
self.update()
# cursor shape:
mouse_pos = event.pos() / self._zoom
if (not sel_rect.isNull()) and sel_rect.contains(mouse_pos, True):
handle_rect = QRect(sel_rect.bottomRight(), self._handle_size)
if handle_rect.contains(mouse_pos):
self.setCursor(Qt.SizeFDiagCursor)
else:
self.setCursor(Qt.OpenHandCursor)
else:
self.setCursor(Qt.CrossCursor)
def mouseReleaseEvent (self, event):
'''Overrides QWidget's mouseReleaseEvent. Handles ending a resizing or
draggin operation on the selection'''
# pylint: disable=C0103
self._selection_rect = self._selection_rect.normalized()
self._resize_start = None
self._drag_start = None
self.update()
if not self._selection_rect.isNull():
self.selection_changed.emit()
def paintEvent(self, event):
'''Overrides QWidtget's paintEvent.'''
# pylint: disable=C0103
QtGui.QWidget.paintEvent(self, event)
self._painter.begin(self)
pixmap_dest_rect = QRect(self._image_origin * self._zoom,
self._pixmap.size()*self._zoom)
self._painter.drawPixmap(pixmap_dest_rect, self._pixmap)
if not self._selection_rect.isNull():
# preparing the darkened frame:
sel_rect = self._selection_rect.normalized()
frame = QtGui.QPixmap(event.rect().size())
frame.fill(QtGui.QColor(0, 0, 0, 127))
frame_painter = QtGui.QPainter(frame)
# erase the selected area from the frame:
frame_painter.setCompositionMode(
QtGui.QPainter.CompositionMode_DestinationIn)
sel_rect_scaled = QRect(sel_rect.topLeft() * self._zoom,
sel_rect.size() * self._zoom)
frame_painter.fillRect(sel_rect_scaled, QtGui.QColor(0, 0, 0, 0))
# draw selection border :
frame_painter.setCompositionMode(
QtGui.QPainter.CompositionMode_SourceOver)
frame_painter.setPen(self._hl_color1)
frame_painter.drawRect(sel_rect_scaled)
# draw the resize grip (if possible)
if sel_rect_scaled.width() > 20 and sel_rect_scaled.height() > 20:
handle_rect = QRect(sel_rect_scaled.bottomRight(),
self._handle_size)
frame_painter.fillRect(handle_rect, self._hl_color2)
frame_painter.drawRect(handle_rect)
frame_painter.end()
# painting the darkened frame:
self._painter.drawPixmap(0, 0, frame)
self._painter.end()
def resizeEvent(self, event):
'''Overrides QWidget's resizeEvent. Handles image centering.'''
# pylint: disable=C0103
self.adjust_image_origin()
# -------------------- [END] QT_OVERRIDE
def adjust_image_origin(self):
'''Recalculates the top left corner's image position, so the
image is painted centered'''
# pylint: disable=C0103
new_size = self.size() / self._zoom
pix_size = self._pixmap.size()
dx = (new_size.width() - pix_size.width() ) /2
dy = (new_size.height() - pix_size.height()) /2
new_image_origin = QPoint(dx, dy)
self._selection_rect.translate(new_image_origin - self._image_origin)
self._image_origin = new_image_origin
log.info('image origin: %s' % new_image_origin)
def select_unscaled(self):
'''Selects, if possible, a 96 x 96 square centered around the original
image. In this way the image won't be scaled but won't take up all the
96 x 96 area.'''
# pylint: disable=C0103
pix_size = self._pixmap.size()
if pix_size.width() <= 96 and pix_size.height() <= 96:
viewport_size = self.size()
x = (viewport_size.width () - 96) / 2
y = (viewport_size.height() - 96) / 2
self._selection_rect.setTopLeft(QPoint(x, y))
self._selection_rect.setSize(QSize(96, 96))
self.update()
self.selection_changed.emit()
def select_all(self):
'''Selects the whole image. Currently broken for images taller
than wide.'''
# TODO: make me work!
self._selection_rect.setTopLeft(self._image_origin)
self._selection_rect.setSize(self._pixmap.size())
self.update()
self.selection_changed.emit()
def rotate_left(self):
'''Rotates the image counterclockwise.'''
self._pixmap = self._pixmap.transformed(QtGui.QTransform().rotate(-90))
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def rotate_right(self):
'''Rotates the image clockwise'''
self._pixmap = self._pixmap.transformed(QtGui.QTransform().rotate(90))
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def adjust_minum_size(self):
'''Sets the new minimum size, calculated upon the image size
and the _zoom factor.'''
pixmap = self._pixmap
if pixmap.width() < 96 or pixmap.height() < 96:
min_size = QSize(96, 96)
else:
min_size = pixmap.size()
self.setMinimumSize(min_size*self._zoom)
def make_selection_square(self):
'''Modify the selected area making it square'''
wid = self._selection_rect.width ()
self._selection_rect.setSize(QSize(wid, wid))
def set_zoom(self, zoomlevel):
'''Sets the specified zoomlevel'''
self._zoom = zoomlevel
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def fit_zoom(self):
'''Chooses a zoomlevel that makes visible the entire image.
Currently broken.'''
widget_wid = self.size().width ()
widget_hei = self.size().height()
pixmap_wid = self._pixmap.width ()
pixmap_hei = self._pixmap.height()
self._zoom = (min(widget_wid, widget_hei) /
min(pixmap_wid, pixmap_hei))
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def get_selected_pixmap(self):
'''Returns the pixmap contained in the selection rect.
Currently doesn't handle transparency correctly'''
sel_rect_scaled = QRect(self._selection_rect.topLeft() * self._zoom,
self._selection_rect.size() * self._zoom)
return QtGui.QPixmap.grabWidget(self, sel_rect_scaled)
class ArkMapToolInteractive(QgsMapTool):
_active = False
_dragging = False
_panningEnabled = False
_zoomingEnabled = False
_zoomRubberBand = None #QgsRubberBand()
_zoomRect = None # QRect()
_snappingEnabled = False
_snapper = None #QgsMapCanvasSnapper()
_snappingMarker = None # QgsVertexMarker()
_showSnappableVertices = False
_snappableVertices = [] # [QgsPoint()]
_snappableMarkers = [] # [QgsVertexMarker()]
def __init__(self, canvas, snappingEnabled=False, showSnappableVertices=False):
super(ArkMapToolInteractive, self).__init__(canvas)
self._snappingEnabled = snappingEnabled
self._showSnappableVertices = showSnappableVertices
def __del__(self):
if self._active:
self.deactivate()
def isActive(self):
return self._active
def activate(self):
super(ArkMapToolInteractive, self).activate()
self._active = True
self._startSnapping()
def deactivate(self):
self._active = False
if self._snappingEnabled:
self._stopSnapping()
if (self._zoomRubberBand is not None):
self.canvas().scene().removeItem(self._zoomRubberBand)
self._zoomRubberBand = None
super(ArkMapToolInteractive, self).deactivate()
def setAction(self, action):
super(ArkMapToolInteractive, self).setAction(action)
self.action().triggered.connect(self._activate)
def _activate(self):
self.canvas().setMapTool(self)
def panningEnabled(self):
return self._panningEnabled
def setPanningEnabled(self, enabled):
self._panningEnabled = enabled
def zoomingEnabled(self):
return self._zoomingEnabled
def setZoomingEnabled(self, enabled):
self._zoomingEnabled = enabled
def snappingEnabled(self):
return self._snappingEnabled
def setSnappingEnabled(self, enabled):
if (self._snappingEnabled == enabled):
return
self._snappingEnabled = enabled
if not self._active:
return
if enabled:
self._startSnapping()
else:
self._stopSnapping()
def _startSnapping(self):
self._snapper = QgsMapCanvasSnapper()
self._snapper.setMapCanvas(self.canvas())
if self._showSnappableVertices:
self._startSnappableVertices()
def _stopSnapping(self):
self._deleteSnappingMarker()
self._snapper = None
if self._showSnappableVertices:
self._stopSnappableVertices()
def showSnappableVertices(self):
return self._showSnappableVertices
def setShowSnappableVertices(self, show):
if (self._showSnappableVertices == show):
return
self._showSnappableVertices = show
if not self._active:
return
if show:
self._startSnappableVertices()
else:
self._stopSnappableVertices()
def _startSnappableVertices(self):
self.canvas().layersChanged.connect(self._layersChanged)
self.canvas().extentsChanged.connect(self._redrawSnappableMarkers)
QgsProject.instance().snapSettingsChanged.connect(self._layersChanged)
self._layersChanged()
def _stopSnappableVertices(self):
self._deleteSnappableMarkers()
self._snappableLayers = []
self.canvas().layersChanged.disconnect(self._layersChanged)
self.canvas().extentsChanged.disconnect(self._redrawSnappableMarkers)
QgsProject.instance().snapSettingsChanged.disconnect(self._layersChanged)
def canvasMoveEvent(self, e):
super(ArkMapToolInteractive, self).canvasMoveEvent(e)
if not self._active:
return
e.ignore()
if (self._panningEnabled and e.buttons() & Qt.LeftButton):
# Pan map mode
if not self._dragging:
self._dragging = True
self.setCursor(QCursor(Qt.ClosedHandCursor))
self.canvas().panAction(e)
e.accept()
elif (self._zoomingEnabled and e.buttons() & Qt.RightButton):
# Zoom map mode
if not self._dragging:
self._dragging = True
self.setCursor(QCursor(Qt.ClosedHandCursor))
self._zoomRubberBand = QgsRubberBand(self.canvas(), QGis.Polygon)
color = QColor(Qt.blue)
color.setAlpha(63)
self._zoomRubberBand.setColor(color)
self._zoomRect = QRect(0, 0, 0, 0)
self._zoomRect.setTopLeft(e.pos())
self._zoomRect.setBottomRight(e.pos())
if self._zoomRubberBand is not None:
self._zoomRubberBand.setToCanvasRectangle(self._zoomRect)
self._zoomRubberBand.show()
e.accept()
elif self._snappingEnabled:
mapPoint, snapped = self._snapCursorPoint(e.pos())
if (snapped):
self._createSnappingMarker(mapPoint)
else:
self._deleteSnappingMarker()
def canvasReleaseEvent(self, e):
super(ArkMapToolInteractive, self).canvasReleaseEvent(e)
e.ignore()
if (e.button() == Qt.LeftButton):
if self._dragging:
# Pan map mode
self.canvas().panActionEnd(e.pos())
self.setCursor(capture_point_cursor)
self._dragging = False
e.accept()
elif (e.button() == Qt.RightButton):
if self._dragging:
# Zoom mode
self._zoomRect.setBottomRight(e.pos())
if (self._zoomRect.topLeft() != self._zoomRect.bottomRight()):
coordinateTransform = self.canvas().getCoordinateTransform()
ll = coordinateTransform.toMapCoordinates(self._zoomRect.left(), self._zoomRect.bottom())
ur = coordinateTransform.toMapCoordinates(self._zoomRect.right(), self._zoomRect.top())
r = QgsRectangle()
r.setXMinimum(ll.x())
r.setYMinimum(ll.y())
r.setXMaximum(ur.x())
r.setYMaximum(ur.y())
r.normalize()
if (r.width() != 0 and r.height() != 0):
self.canvas().setExtent(r)
self.canvas().refresh()
self._dragging = False
if (self._zoomRubberBand is not None):
self.canvas().scene().removeItem(self._zoomRubberBand)
self._zoomRubberBand = None
e.accept()
def keyPressEvent(self, e):
super(ArkMapToolInteractive, self).keyPressEvent(e)
if (e.key() == Qt.Key_Escape):
self.canvas().unsetMapTool(self)
e.accept()
def _snapCursorPoint(self, cursorPoint):
res, snapResults = self._snapper.snapToBackgroundLayers(cursorPoint)
if (res != 0 or len(snapResults) < 1):
return self.toMapCoordinates(cursorPoint), False
else:
# Take a copy as QGIS will delete the result!
snappedVertex = QgsPoint(snapResults[0].snappedVertex)
return snappedVertex, True
def _createSnappingMarker(self, snapPoint):
if (self._snappingMarker is None):
self._snappingMarker = QgsVertexMarker(self.canvas())
self._snappingMarker.setIconType(QgsVertexMarker.ICON_CROSS)
self._snappingMarker.setColor(Qt.magenta)
self._snappingMarker.setPenWidth(3)
self._snappingMarker.setCenter(snapPoint)
def _deleteSnappingMarker(self):
if (self._snappingMarker is not None):
self.canvas().scene().removeItem(self._snappingMarker)
self._snappingMarker = None
def _createSnappableMarkers(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
extent = self.canvas().extent()
for vertex in self._snappableVertices.asMultiPoint():
if (extent.contains(vertex)):
marker = QgsVertexMarker(self.canvas())
marker.setIconType(QgsVertexMarker.ICON_X)
marker.setColor(Qt.gray)
marker.setPenWidth(1)
marker.setCenter(vertex)
self._snappableMarkers.append(marker)
def _deleteSnappableMarkers(self):
for marker in self._snappableMarkers:
self.canvas().scene().removeItem(marker)
del self._snappableMarkers[:]
def _layersChanged(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
self._buildSnappableLayers()
self._deleteSnappableMarkers()
self._createSnappableMarkers()
def _redrawSnappableMarkers(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
self._deleteSnappableMarkers()
self._createSnappableMarkers()
def _buildSnappableLayers(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
vertices = []
for layer in self.canvas().layers():
ok, enabled, type, units, tolerance, avoid = QgsProject.instance().snapSettingsForLayer(layer.id())
if (ok and enabled and not layer.isEditable()):
for feature in layer.getFeatures():
geometry = feature.geometry()
if geometry is None:
pass
elif geometry.type() == QGis.Point:
vertices.extend([geometry.asPoint()])
elif geometry.type() == QGis.Line:
vertices.extend(geometry.asPolyline())
elif geometry.type() == QGis.Polygon:
lines = geometry.asPolygon()
for line in lines:
vertices.extend(line)
self._snappableVertices = QgsGeometry.fromMultiPoint(vertices)
self._snappableVertices.simplify(0)
class MincutConnec(QgsMapTool):
canvasClicked = pyqtSignal()
def __init__(self, iface, controller):
""" Class constructor """
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.controller = controller
# Call superclass constructor and set current action
QgsMapTool.__init__(self, self.canvas)
self.dragging = False
# Vertex marker
color = QColor(255, 100, 255)
self.vertex_marker = QgsVertexMarker(self.canvas)
self.vertex_marker.setIconType(QgsVertexMarker.ICON_CIRCLE)
self.vertex_marker.setColor(color)
self.vertex_marker.setIconSize(15)
self.vertex_marker.setPenWidth(3)
# Rubber band
self.rubber_band = QgsRubberBand(self.canvas, QGis.Line)
self.rubber_band.setColor(color)
self.rubber_band.setWidth(1)
# Select rectangle
self.select_rect = QRect()
# TODO: Parametrize
self.connec_group = ["Wjoin", "Tap", "Fountain", "Greentap"]
#self.snapperManager = SnappingConfigManager(self.iface)
self.snapper = QgsMapCanvasSnapper(self.canvas)
def activate(self):
pass
def canvasPressEvent(self, event): #@UnusedVariable
self.select_rect.setRect(0, 0, 0, 0)
self.rubber_band.reset()
def canvasMoveEvent(self, event):
""" With left click the digitizing is finished """
if event.buttons() == Qt.LeftButton:
if not self.dragging:
self.dragging = True
self.select_rect.setTopLeft(event.pos())
self.select_rect.setBottomRight(event.pos())
self.set_rubber_band()
else:
# Hide highlight
self.vertex_marker.hide()
# Get the click
x = event.pos().x()
y = event.pos().y()
event_point = QPoint(x, y)
# Snapping
(retval, result) = self.snapper.snapToBackgroundLayers(
event_point) # @UnusedVariable
# That's the snapped point
if result:
# Check feature
for snap_point in result:
element_type = snap_point.layer.name()
if element_type in self.connec_group:
# Get the point
point = QgsPoint(snap_point.snappedVertex)
# Add marker
self.vertex_marker.setCenter(point)
self.vertex_marker.show()
break
def canvasReleaseEvent(self, event):
""" With left click the digitizing is finished """
if event.button() == Qt.LeftButton:
# Get the click
x = event.pos().x()
y = event.pos().y()
event_point = QPoint(x, y)
# Not dragging, just simple selection
if not self.dragging:
# Snap to node
(retval, result) = self.snapper.snapToBackgroundLayers(
event_point) # @UnusedVariable
# That's the snapped point
if result:
# Check feature
for snapped_point in result:
element_type = snapped_point.layer.name()
if element_type in self.connec_group:
feat_type = 'connec'
else:
continue
point = QgsPoint(
snapped_point.snappedVertex) # @UnusedVariable
# layer.removeSelection()
# layer.select([result[0].snappedAtGeometry])
#snapped_point.layer.removeSelection()
snapped_point.layer.select(
[snapped_point.snappedAtGeometry])
else:
# Set valid values for rectangle's width and height
if self.select_rect.width() == 1:
self.select_rect.setLeft(self.select_rect.left() + 1)
if self.select_rect.height() == 1:
self.select_rect.setBottom(self.select_rect.bottom() + 1)
self.set_rubber_band()
self.select_multiple_features(self.selected_rectangle)
self.dragging = False
# Refresh map canvas
self.rubber_band.reset()
self.refresh_map_canvas()
def set_rubber_band(self):
# Coordinates transform
transform = self.canvas.getCoordinateTransform()
# Coordinates
ll = transform.toMapCoordinates(self.select_rect.left(),
self.select_rect.bottom())
lr = transform.toMapCoordinates(self.select_rect.right(),
self.select_rect.bottom())
ul = transform.toMapCoordinates(self.select_rect.left(),
self.select_rect.top())
ur = transform.toMapCoordinates(self.select_rect.right(),
self.select_rect.top())
# Rubber band
self.rubber_band.reset()
self.rubber_band.addPoint(ll, False)
self.rubber_band.addPoint(lr, False)
self.rubber_band.addPoint(ur, False)
self.rubber_band.addPoint(ul, False)
self.rubber_band.addPoint(ll, True)
self.selected_rectangle = QgsRectangle(ll, ur)
def select_multiple_features(self, rectangle):
if self.connec_group is None:
return
if QGis.QGIS_VERSION_INT >= 21600:
# Selection for all connec group layers
for layer_name in self.connec_group:
# Get layer by his name
layer = self.controller.get_layer_by_layername(layer_name,
log_info=True)
if layer:
self.group_pointers_connec.append(layer)
layer.selectByRect(rectangle)
else:
for layer_name in self.connec_group:
self.iface.setActiveLayer(layer)
layer.removeSelection()
layer.select(rectangle, True)
class InfoTool(TouchMapTool):
infoResults = pyqtSignal(dict)
def __init__(self, canvas, snapradius = 2):
super(InfoTool, self).__init__(canvas)
self.radius = snapradius
self.band = QgsRubberBand(self.canvas)
self.band.setColor(QColor.fromRgb(224,162,16))
self.band.setWidth(3)
self.selectband = None
self.selectrect = QRect()
self.dragging = False
self.selectionlayers = []
def getFeatures(self, rect, firstonly=False):
self.band.reset()
for layer in self.selectionlayers.itervalues():
if (not layer.type() == QgsMapLayer.VectorLayer
or layer.geometryType() == QGis.NoGeometry):
continue
rect = self.toLayerCoordinates(layer, rect)
rq = QgsFeatureRequest().setFilterRect(rect)\
.setFlags(QgsFeatureRequest.ExactIntersect)\
.setSubsetOfAttributes([])
features = []
if firstonly:
try:
feature = layer.getFeatures(rq).next()
if feature.isValid():
features.append(feature)
except StopIteration:
continue
else:
for feature in layer.getFeatures(rq):
if feature.isValid():
features.append(feature)
yield layer, features
def toSearchRect(self, point):
point = self.toMapCoordinates(point)
rect = QgsRectangle(point.x(), point.y(), point.x() + 10, point.y() + 10)
return rect
def canvasPressEvent(self, event):
if self.pinching:
return
self.dragging = False
self.selectrect.setRect(0, 0, 0, 0)
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon )
self.selectband.setColor(QColor.fromRgb(0,0,255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if self.pinching:
return
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.selectrect.setTopLeft(event.pos())
self.dragging = True
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect, self.selectband)
def canvasReleaseEvent(self, event):
if self.pinching:
return
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
firstonly = False
else:
firstonly = True
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
results = OrderedDict((l,f) for l, f in self.getFeatures(rect))
self.infoResults.emit(results)
class MapToolInteractive(QgsMapTool):
"""Tool to interact with map, including panning, zooming, and snapping"""
def __init__(self, canvas, snappingEnabled=False):
super(MapToolInteractive, self).__init__(canvas)
self._active = False
self._dragging = False
self._panningEnabled = False
self._zoomingEnabled = False
self._zoomRubberBand = None # QgsRubberBand()
self._zoomRect = None # QRect()
self._snappingEnabled = snappingEnabled
self._snapper = None # QgsMapCanvasSnapper()
self._snappingMarker = None # QgsVertexMarker()
def __del__(self):
if self._active:
self.deactivate()
def isActive(self):
return self._active
def activate(self):
super(MapToolInteractive, self).activate()
self._active = True
self._startSnapping()
def deactivate(self):
self._active = False
if self._snappingEnabled:
self._stopSnapping()
if (self._zoomRubberBand is not None):
self.canvas().scene().removeItem(self._zoomRubberBand)
self._zoomRubberBand = None
super(MapToolInteractive, self).deactivate()
def setAction(self, action):
super(MapToolInteractive, self).setAction(action)
self.action().triggered.connect(self._activate)
def _activate(self):
self.canvas().setMapTool(self)
def panningEnabled(self):
return self._panningEnabled
def setPanningEnabled(self, enabled):
self._panningEnabled = enabled
def zoomingEnabled(self):
return self._zoomingEnabled
def setZoomingEnabled(self, enabled):
self._zoomingEnabled = enabled
def snappingEnabled(self):
return self._snappingEnabled
def setSnappingEnabled(self, enabled):
if (self._snappingEnabled == enabled):
return
self._snappingEnabled = enabled
if not self._active:
return
if enabled:
self._startSnapping()
else:
self._stopSnapping()
def _startSnapping(self):
self._snapper = QgsMapCanvasSnapper()
self._snapper.setMapCanvas(self.canvas())
def _stopSnapping(self):
self._deleteSnappingMarker()
self._snapper = None
def canvasMoveEvent(self, e):
super(MapToolInteractive, self).canvasMoveEvent(e)
if not self._active:
return
e.ignore()
if (self._panningEnabled and e.buttons() & Qt.LeftButton):
# Pan map mode
if not self._dragging:
self._dragging = True
self.setCursor(QCursor(Qt.ClosedHandCursor))
self.canvas().panAction(e)
e.accept()
elif (self._zoomingEnabled and e.buttons() & Qt.RightButton):
# Zoom map mode
if not self._dragging:
self._dragging = True
self.setCursor(QCursor(Qt.ClosedHandCursor))
self._zoomRubberBand = QgsRubberBand(self.canvas(),
QGis.Polygon)
color = QColor(Qt.blue)
color.setAlpha(63)
self._zoomRubberBand.setColor(color)
self._zoomRect = QRect(0, 0, 0, 0)
self._zoomRect.setTopLeft(e.pos())
self._zoomRect.setBottomRight(e.pos())
if self._zoomRubberBand is not None:
self._zoomRubberBand.setToCanvasRectangle(self._zoomRect)
self._zoomRubberBand.show()
e.accept()
elif self._snappingEnabled:
mapPoint, mapPointV2, snapped = self._snapCursorPoint(e.pos())
if (snapped):
self._createSnappingMarker(mapPoint)
else:
self._deleteSnappingMarker()
def canvasReleaseEvent(self, e):
super(MapToolInteractive, self).canvasReleaseEvent(e)
e.ignore()
if (e.button() == Qt.LeftButton):
if self._dragging:
# Pan map mode
self.canvas().panActionEnd(e.pos())
self.setCursor(CapturePointCursor)
self._dragging = False
e.accept()
elif (e.button() == Qt.RightButton):
if self._dragging:
# Zoom mode
self._zoomRect.setBottomRight(e.pos())
if (self._zoomRect.topLeft() != self._zoomRect.bottomRight()):
coordinateTransform = self.canvas().getCoordinateTransform(
)
ll = coordinateTransform.toMapCoordinates(
self._zoomRect.left(), self._zoomRect.bottom())
ur = coordinateTransform.toMapCoordinates(
self._zoomRect.right(), self._zoomRect.top())
r = QgsRectangle()
r.setXMinimum(ll.x())
r.setYMinimum(ll.y())
r.setXMaximum(ur.x())
r.setYMaximum(ur.y())
r.normalize()
if (r.width() != 0 and r.height() != 0):
self.canvas().setExtent(r)
self.canvas().refresh()
self._dragging = False
if (self._zoomRubberBand is not None):
self.canvas().scene().removeItem(self._zoomRubberBand)
self._zoomRubberBand = None
e.accept()
def keyPressEvent(self, e):
super(MapToolInteractive, self).keyPressEvent(e)
if (e.key() == Qt.Key_Escape):
self.canvas().unsetMapTool(self)
e.accept()
def _snapCursorPoint(self, cursorPoint):
res, snapResults = self._snapper.snapToBackgroundLayers(cursorPoint)
if (res != 0 or len(snapResults) < 1):
clicked = self.toMapCoordinates(cursorPoint)
clickedV2 = QgsPointV2(clicked)
return clicked, clickedV2, False
else:
# Take a copy as QGIS will delete the result!
snapped = QgsPoint(snapResults[0].snappedVertex)
snappedV2 = QgsPointV2(snapped)
return snapped, snappedV2, True
def _createSnappingMarker(self, snapPoint):
if (self._snappingMarker is None):
self._snappingMarker = QgsVertexMarker(self.canvas())
self._snappingMarker.setIconType(QgsVertexMarker.ICON_CROSS)
self._snappingMarker.setColor(Qt.magenta)
self._snappingMarker.setPenWidth(3)
self._snappingMarker.setCenter(snapPoint)
def _deleteSnappingMarker(self):
if (self._snappingMarker is not None):
self.canvas().scene().removeItem(self._snappingMarker)
self._snappingMarker = None
class SelectByRect(QgsMapTool):
def __init__(self, canvas):
self.mCanvas = canvas
QgsMapTool.__init__(self, canvas)
self.mCursor = Qt.ArrowCursor
self.mRubberBand = None
self.mDragging = False
self.mSelectRect = QRect()
# QgsRubberBand* mRubberBand;
# def reset(self):
# self.startPoint = None
# self.endPoint = None
# self.isDrawing = False
# SelectByRect.RubberRect.reset(QGis.Polygon)
# self.layer = self.canvas.currentLayer()
def canvasPressEvent(self, e):
self.mSelectRect.setRect(0, 0, 0, 0)
self.mRubberBand = QgsRubberBand(self.mCanvas, QGis.Polygon)
# self.reset()
# self.startPoint = self.toMapCoordinates(e.pos())
# self.isDrawing = True
def canvasMoveEvent(self, e):
if (e.buttons() != Qt.LeftButton):
return
if (not self.mDragging):
self.mDragging = True
self.mSelectRect.setTopLeft(e.pos())
self.mSelectRect.setBottomRight(e.pos())
QgsMapToolSelectUtils.setRubberBand(self.mCanvas, self.mSelectRect,
self.mRubberBand)
# if not self.isDrawing:
# return
# SelectByRect.RubberRect.reset(QGis.Polygon)
# self.endPoint = self.toMapCoordinates(e.pos())
# self.rect = QgsRectangle(self.startPoint, self.endPoint)
# SelectByRect.RubberRect.addGeometry(QgsGeometry.fromRect(self.rect), None)
# SelectByRect.RubberRect.show()
def canvasReleaseEvent(self, e):
selectedFeatures = None
vlayer = QgsMapToolSelectUtils.getCurrentVectorLayer(self.mCanvas)
if (vlayer == None):
if (self.mRubberBand != None):
self.mRubberBand.reset(QGis.Polygon)
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
return
if (not self.mDragging):
QgsMapToolSelectUtils.expandSelectRectangle(
self.mSelectRect, vlayer, e.pos())
else:
if (self.mSelectRect.width() == 1):
self.mSelectRect.setLeft(self.mSelectRect.left() + 1)
if (self.mSelectRect.height() == 1):
self.mSelectRect.setBottom(self.mSelectRect.bottom() + 1)
if (self.mRubberBand != None):
QgsMapToolSelectUtils.setRubberBand(self.mCanvas, self.mSelectRect,
self.mRubberBand)
selectGeom = self.mRubberBand.asGeometry()
# QgsMapToolSelectUtils.setSelectFeatures( self.mCanvas, selectGeom, e )
selectedFeatures = QgsMapToolSelectUtils.setSelectFeatures1(
self.mCanvas, selectGeom, e)
del selectGeom
self.mRubberBand.reset(QGis.Polygon)
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
self.emit(SIGNAL("getSelectedFeatures"), selectedFeatures)
class ArkMapToolInteractive(QgsMapTool):
_active = False
_dragging = False
_panningEnabled = False
_zoomingEnabled = False
_zoomRubberBand = None #QgsRubberBand()
_zoomRect = None # QRect()
_snappingEnabled = False
_snapper = None #QgsMapCanvasSnapper()
_snappingMarker = None # QgsVertexMarker()
_showSnappableVertices = False
_snappableVertices = [] # [QgsPoint()]
_snappableMarkers = [] # [QgsVertexMarker()]
def __init__(self, canvas, snappingEnabled=False, showSnappableVertices=False):
super(ArkMapToolInteractive, self).__init__(canvas)
self._snappingEnabled = snappingEnabled
self._showSnappableVertices = showSnappableVertices
def __del__(self):
if self._active:
self.deactivate()
def isActive(self):
return self._active
def activate(self):
super(ArkMapToolInteractive, self).activate()
self._active = True
self._startSnapping()
def deactivate(self):
self._active = False
if self._snappingEnabled:
self._stopSnapping()
if (self._zoomRubberBand is not None):
self.canvas().scene().removeItem(self._zoomRubberBand)
self._zoomRubberBand = None
super(ArkMapToolInteractive, self).deactivate()
def setAction(self, action):
super(ArkMapToolInteractive, self).setAction(action)
self.action().triggered.connect(self._activate)
def _activate(self):
self.canvas().setMapTool(self)
def panningEnabled(self):
return self._panningEnabled
def setPanningEnabled(self, enabled):
self._panningEnabled = enabled
def zoomingEnabled(self):
return self._zoomingEnabled
def setZoomingEnabled(self, enabled):
self._zoomingEnabled = enabled
def snappingEnabled(self):
return self._snappingEnabled
def setSnappingEnabled(self, enabled):
if (self._snappingEnabled == enabled):
return
self._snappingEnabled = enabled
if not self._active:
return
if enabled:
self._startSnapping()
else:
self._stopSnapping()
def _startSnapping(self):
self._snapper = QgsMapCanvasSnapper()
self._snapper.setMapCanvas(self.canvas())
if self._showSnappableVertices:
self._startSnappableVertices()
def _stopSnapping(self):
self._deleteSnappingMarker()
self._snapper = None
if self._showSnappableVertices:
self._stopSnappableVertices()
def showSnappableVertices(self):
return self._showSnappableVertices
def setShowSnappableVertices(self, show):
if (self._showSnappableVertices == show):
return
self._showSnappableVertices = show
if not self._active:
return
if show:
self._startSnappableVertices()
else:
self._stopSnappableVertices()
def _startSnappableVertices(self):
self.canvas().layersChanged.connect(self._layersChanged)
self.canvas().extentsChanged.connect(self._redrawSnappableMarkers)
QgsProject.instance().snapSettingsChanged.connect(self._layersChanged)
self._layersChanged()
def _stopSnappableVertices(self):
self._deleteSnappableMarkers()
self._snappableLayers = []
self.canvas().layersChanged.disconnect(self._layersChanged)
self.canvas().extentsChanged.disconnect(self._redrawSnappableMarkers)
QgsProject.instance().snapSettingsChanged.disconnect(self._layersChanged)
def canvasMoveEvent(self, e):
super(ArkMapToolInteractive, self).canvasMoveEvent(e)
if not self._active:
return
e.ignore()
if (self._panningEnabled and e.buttons() & Qt.LeftButton):
# Pan map mode
if not self._dragging:
self._dragging = True
self.setCursor(QCursor(Qt.ClosedHandCursor))
self.canvas().panAction(e)
e.accept()
elif (self._zoomingEnabled and e.buttons() & Qt.RightButton):
# Zoom map mode
if not self._dragging:
self._dragging = True
self.setCursor(QCursor(Qt.ClosedHandCursor))
self._zoomRubberBand = QgsRubberBand(self.canvas(), QGis.Polygon)
color = QColor(Qt.blue)
color.setAlpha(63)
self._zoomRubberBand.setColor(color)
self._zoomRect = QRect(0, 0, 0, 0)
self._zoomRect.setTopLeft(e.pos())
self._zoomRect.setBottomRight(e.pos())
if self._zoomRubberBand is not None:
self._zoomRubberBand.setToCanvasRectangle(self._zoomRect)
self._zoomRubberBand.show()
e.accept()
elif self._snappingEnabled:
mapPoint, snapped = self._snapCursorPoint(e.pos())
if (snapped):
self._createSnappingMarker(mapPoint)
else:
self._deleteSnappingMarker()
def canvasReleaseEvent(self, e):
super(ArkMapToolInteractive, self).canvasReleaseEvent(e)
e.ignore()
if (e.button() == Qt.LeftButton):
if self._dragging:
# Pan map mode
self.canvas().panActionEnd(e.pos())
self.setCursor(capture_point_cursor)
self._dragging = False
e.accept()
elif (e.button() == Qt.RightButton):
if self._dragging:
# Zoom mode
self._zoomRect.setBottomRight(e.pos())
if (self._zoomRect.topLeft() != self._zoomRect.bottomRight()):
coordinateTransform = self.canvas().getCoordinateTransform()
ll = coordinateTransform.toMapCoordinates(self._zoomRect.left(), self._zoomRect.bottom())
ur = coordinateTransform.toMapCoordinates(self._zoomRect.right(), self._zoomRect.top())
r = QgsRectangle()
r.setXMinimum(ll.x())
r.setYMinimum(ll.y())
r.setXMaximum(ur.x())
r.setYMaximum(ur.y())
r.normalize()
if (r.width() != 0 and r.height() != 0):
self.canvas().setExtent(r)
self.canvas().refresh()
self._dragging = False
if (self._zoomRubberBand is not None):
self.canvas().scene().removeItem(self._zoomRubberBand)
self._zoomRubberBand = None
e.accept()
def keyPressEvent(self, e):
super(ArkMapToolInteractive, self).keyPressEvent(e)
if (e.key() == Qt.Key_Escape):
self.canvas().unsetMapTool(self)
e.accept()
def _snapCursorPoint(self, cursorPoint):
res, snapResults = self._snapper.snapToBackgroundLayers(cursorPoint)
if (res != 0 or len(snapResults) < 1):
return self.toMapCoordinates(cursorPoint), False
else:
# Take a copy as QGIS will delete the result!
snappedVertex = QgsPoint(snapResults[0].snappedVertex)
return snappedVertex, True
def _createSnappingMarker(self, snapPoint):
if (self._snappingMarker is None):
self._snappingMarker = QgsVertexMarker(self.canvas())
self._snappingMarker.setIconType(QgsVertexMarker.ICON_CROSS)
self._snappingMarker.setColor(Qt.magenta)
self._snappingMarker.setPenWidth(3)
self._snappingMarker.setCenter(snapPoint)
def _deleteSnappingMarker(self):
if (self._snappingMarker is not None):
self.canvas().scene().removeItem(self._snappingMarker)
self._snappingMarker = None
def _createSnappableMarkers(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
extent = self.canvas().extent()
for vertex in self._snappableVertices.asMultiPoint():
if (extent.contains(vertex)):
marker = QgsVertexMarker(self.canvas())
marker.setIconType(QgsVertexMarker.ICON_X)
marker.setColor(Qt.gray)
marker.setPenWidth(1)
marker.setCenter(vertex)
self._snappableMarkers.append(marker)
def _deleteSnappableMarkers(self):
for marker in self._snappableMarkers:
self.canvas().scene().removeItem(marker)
del self._snappableMarkers[:]
def _layersChanged(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
self._buildSnappableLayers()
self._deleteSnappableMarkers()
self._createSnappableMarkers()
def _redrawSnappableMarkers(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
self._deleteSnappableMarkers()
self._createSnappableMarkers()
def _buildSnappableLayers(self):
if (not self._showSnappableVertices or not self._snappingEnabled):
return
vertices = []
for layer in self.canvas().layers():
ok, enabled, type, units, tolerance, avoid = QgsProject.instance().snapSettingsForLayer(layer.id())
if (ok and enabled and not layer.isEditable()):
for feature in layer.getFeatures():
geometry = feature.geometry()
if geometry is None:
pass
elif geometry.type() == QGis.Point:
vertices.extend([geometry.asPoint()])
elif geometry.type() == QGis.Line:
vertices.extend(geometry.asPolyline())
elif geometry.type() == QGis.Polygon:
lines = geometry.asPolygon()
for line in lines:
vertices.extend(line)
self._snappableVertices = QgsGeometry.fromMultiPoint(vertices)
self._snappableVertices.simplify(0)
class InfoTool(QgsMapTool):
def __init__(self, canvas, snapradius=2):
super(InfoTool, self).__init__(canvas)
self.canvas = canvas
self.radius = snapradius
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon)
self.selectrect = QRect()
self.dragging = False
self.selectionlayers = []
def getFeatures(self, rect, firstonly=False):
# The MS SQL driver seems to crash with a empty rectangle.
# Need to check QGIS to patch issue
if rect.isEmpty():
return
for layer in self.selectionlayers.itervalues():
if (not layer.type() == QgsMapLayer.VectorLayer or
layer.geometryType() == QGis.NoGeometry):
continue
rect = self.toLayerCoordinates(layer, rect)
rq = QgsFeatureRequest().setFilterRect(rect) \
.setFlags(QgsFeatureRequest.ExactIntersect)
features = []
for feature in layer.getFeatures(rq):
if feature.isValid():
features.append(feature)
yield layer, features
def toSearchRect(self, point):
size = 20
rect = QRectF()
rect.setLeft(point.x() - size)
rect.setRight(point.x() + size)
rect.setTop(point.y() - size)
rect.setBottom(point.y() + size)
transform = self.canvas.getCoordinateTransform()
ll = transform.toMapCoordinates(rect.left(), rect.bottom())
ur = transform.toMapCoordinates(rect.right(), rect.top())
rect = QgsRectangle(ur, ll)
return rect
def canvasPressEvent(self, event):
self.dragging = False
self.selectrect.setRect(0, 0, 0, 0)
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon)
self.selectband.setColor(QColor.fromRgb(0, 0, 255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.selectrect.setTopLeft(event.pos())
self.dragging = True
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect, self.selectband)
def canvasReleaseEvent(self, event):
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
firstonly = False
else:
firstonly = True
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
results = OrderedDict((l, f) for l, f in self.getFeatures(rect))
RoamEvents.selectioncleared.emit()
RoamEvents.selectionchanged.emit(results)
class SelectedFeatureByRectTasDraw(QgsMapTool):
def __init__(self, canvas, distance):
self.mCanvas = canvas
QgsMapTool.__init__(self, canvas)
self.mCursor = Qt.ArrowCursor
self.mRubberBand = None
self.mDragging = False
self.mSelectRect = QRect()
self.rubberBandLine = None
self.distance = distance
self.mSnapper = QgsMapCanvasSnapper(canvas)
# QgsRubberBand* mRubberBand;
# def reset(self):
# self.startPoint = None
# self.endPoint = None
# self.isDrawing = False
# SelectByRect.RubberRect.reset(QGis.Polygon)
# self.layer = self.canvas.currentLayer()
def canvasPressEvent(self, e):
self.mSelectRect.setRect(0, 0, 0, 0)
self.mRubberBand = QgsRubberBand(self.mCanvas, QGis.Polygon)
self.startPoint, self.pointID, self.layer = self.snapPoint(e.pos())
# self.reset()
# self.startPoint = self.toMapCoordinates(e.pos())
# self.isDrawing = True
def canvasMoveEvent(self, e):
if (e.buttons() != Qt.LeftButton):
return
if (not self.mDragging):
self.mDragging = True
self.mSelectRect.setTopLeft(e.pos())
self.mSelectRect.setBottomRight(e.pos())
QgsMapToolSelectUtils.setRubberBand(self.mCanvas, self.mSelectRect,
self.mRubberBand)
# if not self.isDrawing:
# return
# SelectByRect.RubberRect.reset(QGis.Polygon)
# self.endPoint = self.toMapCoordinates(e.pos())
# self.rect = QgsRectangle(self.startPoint, self.endPoint)
# SelectByRect.RubberRect.addGeometry(QgsGeometry.fromRect(self.rect), None)
# SelectByRect.RubberRect.show()
def canvasReleaseEvent(self, e):
self.endPoint, self.pointID, self.layer = self.snapPoint(e.pos())
if len(define._newGeometryList) > 0:
geom = define._newGeometryList[0]
if geom.intersects(self.mRubberBand.asGeometry()):
pointArray = geom.asPolyline()
# pointArray1 = QgisHelper.offsetCurve(pointArray, 1200)
if self.rubberBandLine != None:
self.rubberBandLine.reset(QGis.Line)
del self.rubberBandLine
self.rubberBandLine = None
self.rubberBandLine = QgsRubberBand(self.mCanvas, QGis.Line)
self.rubberBandLine.setColor(Qt.blue)
bearing = 0.0
if self.startPoint.y() >= self.endPoint.y() and (
math.fabs(self.startPoint.x() - self.endPoint.x()) <
math.fabs(self.startPoint.y() - self.endPoint.y())):
bearing = Unit.ConvertDegToRad(180)
elif self.startPoint.x() >= self.endPoint.x() and (
math.fabs(self.startPoint.x() - self.endPoint.x()) >
math.fabs(self.startPoint.y() - self.endPoint.y())):
bearing = Unit.ConvertDegToRad(270)
elif self.startPoint.x() < self.endPoint.x() and (
math.fabs(self.startPoint.x() - self.endPoint.x()) >
math.fabs(self.startPoint.y() - self.endPoint.y())):
bearing = Unit.ConvertDegToRad(90)
else:
bearing = 0.0
for point in pointArray:
pt = MathHelper.distanceBearingPoint(
Point3D(point.x(), point.y()), bearing, self.distance
) # MathHelper.getBearing(self.startPoint, self.endPoint), self.distance)
self.rubberBandLine.addPoint(pt)
gg = self.rubberBandLine.asGeometry()
g = gg.asPolyline()
# self.rubberBandLine.show()
if (self.mRubberBand != None):
self.mRubberBand.reset(QGis.Polygon)
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
self.emit(
SIGNAL("resultSelectedFeatureByRectTasDraw"), gg,
self.distance, bearing
) # MathHelper.getBearing(self.startPoint, self.endPoint))
return
vlayer = QgsMapToolSelectUtils.getCurrentVectorLayer(self.mCanvas)
if (vlayer == None):
if (self.mRubberBand != None):
self.mRubberBand.reset(QGis.Polygon)
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
return
if (not self.mDragging):
QgsMapToolSelectUtils.expandSelectRectangle(
self.mSelectRect, vlayer, e.pos())
else:
if (self.mSelectRect.width() == 1):
self.mSelectRect.setLeft(self.mSelectRect.left() + 1)
if (self.mSelectRect.height() == 1):
self.mSelectRect.setBottom(self.mSelectRect.bottom() + 1)
if (self.mRubberBand != None):
QgsMapToolSelectUtils.setRubberBand(self.mCanvas, self.mSelectRect,
self.mRubberBand)
selectGeom = self.mRubberBand.asGeometry()
# QgsMapToolSelectUtils.setSelectFeatures( self.mCanvas, selectGeom, e )
selectedFeatures = QgsMapToolSelectUtils.setSelectFeaturesOrRubberband_Tas_1(
self.mCanvas, selectGeom, e)
if len(selectedFeatures) > 0:
geom = selectedFeatures[0].geometry()
if geom.intersects(self.mRubberBand.asGeometry()):
pointArray = geom.asPolyline()
# pointArray1 = QgisHelper.offsetCurve(pointArray, 1200)
if self.rubberBandLine != None:
self.rubberBandLine.reset(QGis.Line)
del self.rubberBandLine
self.rubberBandLine = None
self.rubberBandLine = QgsRubberBand(
self.mCanvas, QGis.Line)
self.rubberBandLine.setColor(Qt.blue)
bearing = 0.0
gg = None
if self.startPoint.y() >= self.endPoint.y() and (
math.fabs(self.startPoint.x() - self.endPoint.x())
< math.fabs(self.startPoint.y() -
self.endPoint.y())):
bearing = Unit.ConvertDegToRad(180)
gg = self.newCreateLine(geom, self.distance, 180)
elif self.startPoint.x() >= self.endPoint.x() and (
math.fabs(self.startPoint.x() - self.endPoint.x())
> math.fabs(self.startPoint.y() -
self.endPoint.y())):
bearing = Unit.ConvertDegToRad(270)
gg = self.newCreateLine(geom, self.distance, 270)
elif self.startPoint.x() < self.endPoint.x() and (
math.fabs(self.startPoint.x() - self.endPoint.x())
> math.fabs(self.startPoint.y() -
self.endPoint.y())):
bearing = Unit.ConvertDegToRad(90)
gg = self.newCreateLine(geom, self.distance, 90)
else:
bearing = 0.0
gg = self.newCreateLine(geom, self.distance, 0)
for point in pointArray:
pt = MathHelper.distanceBearingPoint(
Point3D(point.x(),
point.y()), bearing, self.distance
) #MathHelper.getBearing(self.startPoint, self.endPoint), self.distance)
self.rubberBandLine.addPoint(pt)
# gg= self.newCreateLine(geom, -self.distance, 0)
self.emit(
SIGNAL("resultSelectedFeatureByRectTasDraw"), gg,
self.distance, bearing
) #MathHelper.getBearing(self.startPoint, self.endPoint))
self.rubberBandLine.reset(QGis.Line)
del selectGeom
self.mRubberBand.reset(QGis.Polygon)
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
# self.canvasMoveEvent(e)
# if self.layer != None:
# self.layer.removeSelection()
# if self.layer.crs().mapUnits() != self.canvas.mapUnits():
# if self.layer.crs().mapUnits == QGis.Meters:
# lstPoint = QgisHelper.Degree2MeterList([self.startPoint, self.endPoint])
# else:
# lstPoint = QgisHelper.Meter2DegreeList([self.startPoint, self.endPoint])
# rect = QgsRectangle(lstPoint[0], lstPoint[1])
# self.layer.select(rect, True)
# else:
# self.layer.select(self.rect, False)
# else:
# QMessageBox.warning(None, "Information", "Please select layer!")
# self.reset()
def snapPoint(self, p, bNone=False):
if define._snapping == False:
return (
define._canvas.getCoordinateTransform().toMapCoordinates(p),
None, None)
snappingResults = self.mSnapper.snapToBackgroundLayers(p)
if (snappingResults[0] != 0 or len(snappingResults[1]) < 1):
if bNone:
return (None, None, None)
else:
return (define._canvas.getCoordinateTransform().
toMapCoordinates(p), None, None)
else:
return (snappingResults[1][0].snappedVertex,
snappingResults[1][0].snappedAtGeometry,
snappingResults[1][0].layer)
def newCreateLine(self, geom, dist, angle):
if define._units != QGis.Meters:
dist = define._qgsDistanceArea.convertMeasurement(
dist, QGis.Meters, QGis.Degrees, False)[0]
g = geom.offsetCurve(dist, 0, 2, 2)
pointArrayOld = geom.asPolyline()
pointArrayNew = g.asPolyline()
if MathHelper.calcDistance(
pointArrayNew[0], pointArrayOld[0]) > MathHelper.calcDistance(
pointArrayNew[0], pointArrayOld[len(pointArrayOld) - 1]):
array = []
i = len(pointArrayNew) - 1
while i >= 0:
array.append(pointArrayNew[i])
i -= 1
pointArrayNew = array
if angle == 0:
if pointArrayNew[0].y() < pointArrayOld[0].y():
g = geom.offsetCurve(-dist, 0, 2, 2)
pointArrayNew = g.asPolyline()
elif angle == 90:
if pointArrayNew[0].x() < pointArrayOld[0].x():
g = geom.offsetCurve(-dist, 0, 2, 2)
pointArrayNew = g.asPolyline()
elif angle == 180:
if pointArrayNew[0].y() > pointArrayOld[0].y():
g = geom.offsetCurve(-dist, 0, 2, 2)
pointArrayNew = g.asPolyline()
elif angle == 270:
if pointArrayNew[0].x() > pointArrayOld[0].x():
g = geom.offsetCurve(-dist, 0, 2, 2)
pointArrayNew = g.asPolyline()
if MathHelper.calcDistance(
pointArrayNew[0], pointArrayOld[0]) > MathHelper.calcDistance(
pointArrayNew[0], pointArrayOld[len(pointArrayOld) - 1]):
array = []
i = len(pointArrayNew) - 1
while i >= 0:
array.append(pointArrayNew[i])
i -= 1
pointArrayNew = array
i = 0
while i < len(pointArrayNew) - 1:
if i == 0:
i += 1
continue
line = None
if define._units == QGis.Meters:
if angle == 0:
line = QgsGeometry.fromPolyline([
pointArrayOld[0],
QgsPoint(pointArrayOld[0].x(), 100000000)
])
elif angle == 90:
line = QgsGeometry.fromPolyline([
pointArrayOld[0],
QgsPoint(100000000, pointArrayOld[0].y())
])
elif angle == 180:
line = QgsGeometry.fromPolyline(
[pointArrayOld[0],
QgsPoint(pointArrayOld[0].x(), 0)])
elif angle == 270:
line = QgsGeometry.fromPolyline(
[pointArrayOld[0],
QgsPoint(0, pointArrayOld[0].y())])
else:
if angle == 0:
line = QgsGeometry.fromPolyline([
pointArrayOld[0],
QgsPoint(pointArrayOld[0].x(),
pointArrayOld[0].y() + 0.1)
])
elif angle == 90:
line = QgsGeometry.fromPolyline([
pointArrayOld[0],
QgsPoint(pointArrayOld[0].x() + 0.1,
pointArrayOld[0].y())
])
elif angle == 180:
line = QgsGeometry.fromPolyline([
pointArrayOld[0],
QgsPoint(pointArrayOld[0].x(),
pointArrayOld[0].y() - 0.1)
])
elif angle == 270:
line = QgsGeometry.fromPolyline([
pointArrayOld[0],
QgsPoint(pointArrayOld[0].x() - 0.1,
pointArrayOld[0].y())
])
lineNew = QgsGeometry.fromPolyline([
MathHelper.distanceBearingPoint(
Point3D(pointArrayNew[i].x(), pointArrayNew[i].y()),
MathHelper.getBearing(pointArrayNew[i],
pointArrayNew[i - 1]), 100000),
pointArrayNew[i]
])
if line.intersects(lineNew):
pointGeom = line.intersection(lineNew)
intersectPoint = pointGeom.asPoint()
pointArrayNew.pop(i - 1)
pointArrayNew.insert(i - 1, intersectPoint)
break
else:
pointArrayNew.pop(i - 1)
continue
i += 1
i = len(pointArrayNew) - 1
while i > 1:
line = None
if define._units == QGis.Meters:
if angle == 0:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(pointArrayOld[len(pointArrayOld) - 1].x(),
100000000)
])
elif angle == 90:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(100000000,
pointArrayOld[len(pointArrayOld) - 1].y())
])
elif angle == 180:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(pointArrayOld[len(pointArrayOld) - 1].x(), 0)
])
elif angle == 270:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(0, pointArrayOld[len(pointArrayOld) - 1].y())
])
else:
if angle == 0:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(
pointArrayOld[len(pointArrayOld) - 1].x(),
pointArrayOld[len(pointArrayOld) - 1].y() + 0.1)
])
elif angle == 90:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(
pointArrayOld[len(pointArrayOld) - 1].x() + 0.1,
pointArrayOld[len(pointArrayOld) - 1].y())
])
elif angle == 180:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(
pointArrayOld[len(pointArrayOld) - 1].x(),
pointArrayOld[len(pointArrayOld) - 1].y() - 0.1)
])
elif angle == 270:
line = QgsGeometry.fromPolyline([
pointArrayOld[len(pointArrayOld) - 1],
QgsPoint(
pointArrayOld[len(pointArrayOld) - 1].x() - 0.1,
pointArrayOld[len(pointArrayOld) - 1].y())
])
# line = QgsGeometry.fromPolyline([pointArrayOld[len(pointArrayOld) - 1], QgsPoint(pointArrayOld[len(pointArrayOld) - 1].x(), 100000000)])
lineNew = QgsGeometry.fromPolyline([
MathHelper.distanceBearingPoint(
Point3D(pointArrayNew[i].x(), pointArrayNew[i].y()),
MathHelper.getBearing(pointArrayNew[i - 1],
pointArrayNew[i]), 100000),
pointArrayNew[i - 1]
])
if line.intersects(lineNew):
pointGeom = line.intersection(lineNew)
intersectPoint = pointGeom.asPoint()
pointArrayNew.pop(i)
pointArrayNew.insert(i, intersectPoint)
break
else:
pointArrayNew.pop(i)
i -= 1
continue
i -= 1
return QgsGeometry.fromPolyline(pointArrayNew)
class ConnecMapTool(ParentMapTool):
""" Button 20: User select connections from layer 'connec'
Execute SQL function: 'gw_fct_connect_to_network' """
def __init__(self, iface, settings, action, index_action):
""" Class constructor """
# Call ParentMapTool constructor
super(ConnecMapTool, self).__init__(iface, settings, action,
index_action)
self.dragging = False
# Select rectangle
self.select_rect = QRect()
""" QgsMapTools inherited event functions """
def canvasMoveEvent(self, event):
""" With left click the digitizing is finished """
if event.buttons() == Qt.LeftButton:
if not self.dragging:
self.dragging = True
self.select_rect.setTopLeft(event.pos())
self.select_rect.setBottomRight(event.pos())
self.set_rubber_band()
else:
# Hide marker
self.vertex_marker.hide()
# Get the click
x = event.pos().x()
y = event.pos().y()
event_point = QPoint(x, y)
# Snapping
(retval, result) = self.snapper.snapToBackgroundLayers(
event_point) # @UnusedVariable
# That's the snapped features
if result:
for snapped_feat in result:
# Check if it belongs to 'connec' or 'gully' group
exist_connec = self.snapper_manager.check_connec_group(
snapped_feat.layer)
exist_gully = self.snapper_manager.check_gully_group(
snapped_feat.layer)
if exist_connec or exist_gully:
# Get the point and add marker
point = QgsPoint(result[0].snappedVertex)
self.vertex_marker.setCenter(point)
self.vertex_marker.show()
break
def canvasPressEvent(self, event): #@UnusedVariable
self.select_rect.setRect(0, 0, 0, 0)
self.rubber_band.reset(QGis.Polygon)
def canvasReleaseEvent(self, event):
""" With left click the digitizing is finished """
if event.button() == Qt.LeftButton:
# Get the click
x = event.pos().x()
y = event.pos().y()
event_point = QPoint(x, y)
# Simple selection
if not self.dragging:
# Snap to connec or gully
(retval, result) = self.snapper.snapToBackgroundLayers(
event_point) # @UnusedVariable
# That's the snapped features
if result:
# Check if it belongs to 'connec' or 'gully' group
exist_connec = self.snapper_manager.check_connec_group(
result[0].layer)
exist_gully = self.snapper_manager.check_gully_group(
result[0].layer)
if exist_connec or exist_gully:
key = QApplication.keyboardModifiers()
# If Ctrl+Shift is clicked: deselect snapped feature
if key == (Qt.ControlModifier | Qt.ShiftModifier):
result[0].layer.deselect(
[result[0].snappedAtGeometry])
else:
# If Ctrl is not clicked: remove previous selection
if key != Qt.ControlModifier:
result[0].layer.removeSelection()
result[0].layer.select(
[result[0].snappedAtGeometry])
# Hide marker
self.vertex_marker.hide()
# Multiple selection
else:
# Set valid values for rectangle's width and height
if self.select_rect.width() == 1:
self.select_rect.setLeft(self.select_rect.left() + 1)
if self.select_rect.height() == 1:
self.select_rect.setBottom(self.select_rect.bottom() + 1)
self.set_rubber_band()
selected_geom = self.rubber_band.asGeometry() #@UnusedVariable
self.select_multiple_features(self.selected_rectangle)
self.dragging = False
# Refresh map canvas
self.rubber_band.reset()
elif event.button() == Qt.RightButton:
# Check selected records
number_features = 0
for layer in self.layer_connec_man:
number_features += layer.selectedFeatureCount()
if number_features > 0:
message = ("Number of features selected in the 'connec' group")
title = "Interpolate value - Do you want to update values"
answer = self.controller.ask_question(
message, title, parameter=str(number_features))
if answer:
# Create link
self.link_selected_features('connec',
self.layer_connec_man)
if self.layer_gully_man:
# Check selected records
number_features = 0
for layer in self.layer_gully_man:
number_features += layer.selectedFeatureCount()
if number_features > 0:
message = (
"Number of features selected in the 'gully' group")
title = "Interpolate value - Do you want to update values"
answer = self.controller.ask_question(
message, title, parameter=str(number_features))
if answer:
# Create link
self.link_selected_features('gully',
self.layer_gully_man)
def activate(self):
# Check button
self.action().setChecked(True)
# Rubber band
self.rubber_band.reset()
# Store user snapping configuration
self.snapper_manager.store_snapping_options()
# Clear snapping
self.snapper_manager.clear_snapping()
# Set snapping to 'connec' and 'gully'
self.snapper_manager.snap_to_connec_gully()
# Change cursor
cursor = self.get_cursor_multiple_selection()
self.canvas.setCursor(cursor)
# Show help message when action is activated
if self.show_help:
message = "Right click to use current selection, select connec points by clicking or dragging (selection box)"
self.controller.show_info(message)
def deactivate(self):
# Call parent method
ParentMapTool.deactivate(self)
def link_selected_features(self, geom_type, layers):
""" Link selected @geom_type to the pipe """
# Check features selected
number_features = 0
for layer in layers:
number_features += layer.selectedFeatureCount()
if number_features == 0:
message = "You have to select at least one feature!"
self.controller.show_warning(message)
return
# Get selected features from layers of selected @geom_type
aux = "{"
field_id = geom_type + "_id"
# Iterate over all layers
for layer in layers:
if layer.selectedFeatureCount() > 0:
# Get selected features of the layer
features = layer.selectedFeatures()
for feature in features:
feature_id = feature.attribute(field_id)
aux += str(feature_id) + ", "
list_feature_id = aux[:-2] + "}"
# Execute function
function_name = "gw_fct_connect_to_network"
sql = ("SELECT " + self.schema_name + "." + function_name + ""
"('" + list_feature_id + "', '" + geom_type.upper() +
"');")
self.controller.execute_sql(sql, log_sql=True)
layer.removeSelection()
# Refresh map canvas
self.rubber_band.reset()
self.refresh_map_canvas()
self.iface.actionPan().trigger()
def set_rubber_band(self):
# Coordinates transform
transform = self.canvas.getCoordinateTransform()
# Coordinates
ll = transform.toMapCoordinates(self.select_rect.left(),
self.select_rect.bottom())
lr = transform.toMapCoordinates(self.select_rect.right(),
self.select_rect.bottom())
ul = transform.toMapCoordinates(self.select_rect.left(),
self.select_rect.top())
ur = transform.toMapCoordinates(self.select_rect.right(),
self.select_rect.top())
# Rubber band
self.rubber_band.reset(QGis.Polygon)
self.rubber_band.addPoint(ll, False)
self.rubber_band.addPoint(lr, False)
self.rubber_band.addPoint(ur, False)
self.rubber_band.addPoint(ul, False)
self.rubber_band.addPoint(ll, True)
self.selected_rectangle = QgsRectangle(ll, ur)
def select_multiple_features(self, selectGeometry):
if self.layer_connec_man is None and self.layer_gully_man is None:
return
key = QApplication.keyboardModifiers()
# If Ctrl+Shift clicked: remove features from selection
if key == (Qt.ControlModifier | Qt.ShiftModifier):
behaviour = QgsVectorLayer.RemoveFromSelection
# If Ctrl clicked: add features to selection
elif key == Qt.ControlModifier:
behaviour = QgsVectorLayer.AddToSelection
# If Ctrl not clicked: add features to selection
else:
behaviour = QgsVectorLayer.AddToSelection
# Selection for all connec and gully layers
for layer in self.layer_connec_man:
layer.selectByRect(selectGeometry, behaviour)
if self.layer_gully_man:
for layer in self.layer_gully_man:
layer.selectByRect(selectGeometry, behaviour)
class InfoTool(QgsMapTool):
def __init__(self, canvas, snapradius = 2):
super(InfoTool, self).__init__(canvas)
self.canvas = canvas
self.radius = snapradius
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon )
self.selectrect = QRect()
self.dragging = False
self.selectionlayers = []
def getFeatures(self, rect, firstonly=False):
# The MS SQL driver seems to crash with a empty rectangle.
# Need to check QGIS to patch issue
if rect.isEmpty():
return
for layer in self.selectionlayers.itervalues():
if (not layer.type() == QgsMapLayer.VectorLayer or
layer.geometryType() == QGis.NoGeometry):
continue
rect = self.toLayerCoordinates(layer, rect)
rq = QgsFeatureRequest().setFilterRect(rect) \
.setFlags(QgsFeatureRequest.ExactIntersect)
features = []
for feature in layer.getFeatures(rq):
if feature.isValid():
features.append(feature)
yield layer, features
def toSearchRect(self, point):
size = 20
rect = QRectF()
rect.setLeft(point.x() - size)
rect.setRight(point.x() + size)
rect.setTop(point.y() - size)
rect.setBottom(point.y() + size)
transform = self.canvas.getCoordinateTransform()
ll = transform.toMapCoordinates(rect.left(), rect.bottom())
ur = transform.toMapCoordinates(rect.right(), rect.top())
rect = QgsRectangle(ur, ll)
return rect
def canvasPressEvent(self, event):
self.dragging = False
self.selectrect.setRect(0, 0, 0, 0)
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon )
self.selectband.setColor(QColor.fromRgb(0,0,255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.selectrect.setTopLeft(event.pos())
self.dragging = True
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect, self.selectband)
def canvasReleaseEvent(self, event):
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
firstonly = False
else:
firstonly = True
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
results = OrderedDict((l,f) for l, f in self.getFeatures(rect))
RoamEvents.selectioncleared.emit()
RoamEvents.selectionchanged.emit(results)
class ExtractRasterValue(ParentMapTool):
""" Button 18. User select nodes and assign raster elevation or value """
def __init__(self, iface, settings, action, index_action):
""" Class constructor """
# Call ParentMapTool constructor
super(ExtractRasterValue, self).__init__(iface, settings, action, index_action)
self.dragging = False
# Vertex marker
self.vertexMarker = QgsVertexMarker(self.canvas)
self.vertexMarker.setColor(QColor(255, 25, 25))
self.vertexMarker.setIconSize(11)
self.vertexMarker.setIconType(QgsVertexMarker.ICON_BOX) # or ICON_CROSS, ICON_X
self.vertexMarker.setPenWidth(5)
# Rubber band
self.rubberBand = QgsRubberBand(self.canvas, True)
mFillColor = QColor(100, 0, 0)
self.rubberBand.setColor(mFillColor)
self.rubberBand.setWidth(3)
mBorderColor = QColor(254, 58, 29)
self.rubberBand.setBorderColor(mBorderColor)
# Select rectangle
self.selectRect = QRect()
# Init
self.vectorLayer = None
self.rasterLayer = None
def reset(self):
""" Clear selected features """
layer = self.vectorLayer
if layer is not None:
layer.removeSelection()
# Graphic elements
self.rubberBand.reset()
def set_config_action(self, action_99):
""" Get the config form action"""
self.configAction = action_99
""" QgsMapTools inherited event functions """
def canvasMoveEvent(self, event):
""" With left click the digitizing is finished """
if self.vectorLayer is None:
return
if event.buttons() == Qt.LeftButton:
if not self.dragging:
self.dragging = True
self.selectRect.setTopLeft(event.pos())
self.selectRect.setBottomRight(event.pos())
self.set_rubber_band()
else:
# Hide highlight
self.vertexMarker.hide()
# Get the click
x = event.pos().x()
y = event.pos().y()
eventPoint = QPoint(x, y)
# Snapping
(retval, result) = self.snapper.snapToBackgroundLayers(eventPoint) # @UnusedVariable
# That's the snapped point
if result <> []:
# Check Arc or Node
for snapPoint in result:
if snapPoint.layer == self.vectorLayer:
# Get the point
point = QgsPoint(result[0].snappedVertex)
# Add marker
self.vertexMarker.setCenter(point)
self.vertexMarker.show()
break
def canvasPressEvent(self, event):
self.selectRect.setRect(0, 0, 0, 0)
self.rubberBand.reset()
def canvasReleaseEvent(self, event):
""" With left click the digitizing is finished """
if event.button() == Qt.LeftButton:
# Get the click
x = event.pos().x()
y = event.pos().y()
eventPoint = QPoint(x, y)
# Node layer
layer = self.vectorLayer
# Not dragging, just simple selection
if not self.dragging:
# Snap to node
(retval, result) = self.snapper.snapToBackgroundLayers(eventPoint) # @UnusedVariable
# That's the snapped point
if result <> [] and (result[0].layer.name() == self.vectorLayer.name()):
point = QgsPoint(result[0].snappedVertex) # @UnusedVariable
layer.removeSelection()
layer.select([result[0].snappedAtGeometry])
# Interpolate values
self.raster_interpolate()
# Hide highlight
self.vertexMarker.hide()
else:
# Set valid values for rectangle's width and height
if self.selectRect.width() == 1:
self.selectRect.setLeft(self.selectRect.left() + 1)
if self.selectRect.height() == 1:
self.selectRect.setBottom(self.selectRect.bottom() + 1)
self.set_rubber_band()
selectGeom = self.rubberBand.asGeometry() # @UnusedVariable
self.select_multiple_features(self.selectRectMapCoord)
self.dragging = False
# Interpolate values
self.raster_interpolate()
elif event.button() == Qt.RightButton:
# Interpolate values
self.raster_interpolate()
def activate(self):
# Check button
self.action().setChecked(True)
# Rubber band
self.rubberBand.reset()
# Store user snapping configuration
self.snapperManager.storeSnappingOptions()
# Clear snapping
self.snapperManager.clearSnapping()
# Get layers
res = self.find_raster_layers()
# if res == 0:
# self.controller.show_warning("Raster configuration tool not properly configured.")
# return
# Change cursor
self.canvas.setCursor(self.cursor)
# Show help message when action is activated
if self.show_help:
message = (
"Right click to use current selection, select connec points by clicking or dragging (selection box)"
)
self.controller.show_info(message, context_name="ui_message")
# Control current layer (due to QGIS bug in snapping system)
try:
if self.canvas.currentLayer().type() == QgsMapLayer.VectorLayer:
self.canvas.setCurrentLayer(self.layer_arc)
except:
self.canvas.setCurrentLayer(self.layer_arc)
def deactivate(self):
# Check button
self.action().setChecked(False)
# Rubber band
self.rubberBand.reset()
# Restore previous snapping
self.snapperManager.recoverSnappingOptions()
# Recover cursor
self.canvas.setCursor(self.stdCursor)
def nearestNeighbor(self, thePoint):
ident = self.dataProv.identify(thePoint, QgsRaster.IdentifyFormatValue)
value = None
if ident is not None: # and ident.has_key(choosenBand+1):
try:
value = float(ident.results()[int(self.band)])
except TypeError:
value = None
if value == self.noDataValue:
return None
return value
def writeInterpolation(self, f, fieldIdx):
thePoint = f.geometry().asPoint()
value = self.nearestNeighbor(thePoint)
self.vectorLayer.changeAttributeValue(f.id(), fieldIdx, value)
def raster_interpolate(self):
""" Interpolate features value from raster """
# Interpolate values
if self.vectorLayer is None and self.rasterLayer is None:
return
# Get data provider
layer = self.vectorLayer
self.dataProv = self.rasterLayer.dataProvider()
if self.dataProv.srcNoDataValue(int(self.band)):
self.noDataValue = self.dataProv.srcNoDataValue(int(self.band))
else:
self.noDataValue = None
self.continueProcess = True
self.fieldIdx = ""
self.fieldIdx = layer.fieldNameIndex(self.fieldName)
if self.band == 0:
self.controller.show_warning("You must choose a band for the raster layer.")
return
if self.fieldName == "":
self.controller.show_warning("You must choose a field to write values.")
return
if self.fieldIdx < 0:
self.controller.show_warning("Selected field does not exist in feature layer.")
return
k = 0
c = 0
f = QgsFeature()
# Check features selected
if layer.selectedFeatureCount() == 0:
message = "You have to select at least one feature!"
self.controller.show_warning(message, context_name="ui_message")
return
# Check editable
if not layer.isEditable():
layer.startEditing()
# Get selected id's
ids = self.vectorLayer.selectedFeaturesIds()
for fid in ids:
k += 1
layer.getFeatures(QgsFeatureRequest(fid)).nextFeature(f)
c += 1
self.writeInterpolation(f, self.fieldIdx)
QCoreApplication.processEvents()
self.controller.show_info(
"%u values have been updated in layer %s.%s over %u points using %s raster"
% (c, self.vectorLayer.name(), self.fieldName, k, self.table_raster)
)
# Check editable
if layer.isEditable():
layer.commitChanges()
# Refresh map canvas
self.rubberBand.reset()
self.iface.mapCanvas().refresh()
def set_rubber_band(self):
# Coordinates transform
transform = self.canvas.getCoordinateTransform()
# Coordinates
ll = transform.toMapCoordinates(self.selectRect.left(), self.selectRect.bottom())
lr = transform.toMapCoordinates(self.selectRect.right(), self.selectRect.bottom())
ul = transform.toMapCoordinates(self.selectRect.left(), self.selectRect.top())
ur = transform.toMapCoordinates(self.selectRect.right(), self.selectRect.top())
# Rubber band
self.rubberBand.reset()
self.rubberBand.addPoint(ll, False)
self.rubberBand.addPoint(lr, False)
self.rubberBand.addPoint(ur, False)
self.rubberBand.addPoint(ul, False)
self.rubberBand.addPoint(ll, True)
self.selectRectMapCoord = QgsRectangle(ll, ur)
def select_multiple_features(self, selectGeometry):
# Default choice
behaviour = QgsVectorLayer.SetSelection
# Modifiers
modifiers = QApplication.keyboardModifiers()
if modifiers == Qt.ControlModifier:
behaviour = QgsVectorLayer.AddToSelection
elif modifiers == Qt.ShiftModifier:
behaviour = QgsVectorLayer.RemoveFromSelection
if self.vectorLayer is None:
return
# Change cursor
QApplication.setOverrideCursor(Qt.WaitCursor)
# Selection
self.vectorLayer.selectByRect(selectGeometry, behaviour)
# Old cursor
QApplication.restoreOverrideCursor()
def find_raster_layers(self):
# Query database (form data)
sql = "SELECT *"
sql += " FROM " + self.schema_name + ".config_extract_raster_value"
rows = self.controller.get_rows(sql)
if not rows:
self.controller.show_warning("Any data found in table config_extract_raster_value")
self.configAction.activate(QAction.Trigger)
return 0
# Layers
row = rows[0]
self.table_raster = row[1]
self.band = row[2]
self.table_vector = row[3]
self.fieldName = row[4]
# Check if we have any layer loaded
layers = self.iface.legendInterface().layers()
if len(layers) == 0:
return
# Init layers
self.rasterLayer = None
self.vectorLayer = None
# Iterate over all layers to get the ones specified in 'db' config section
for cur_layer in layers:
if cur_layer.name() == self.table_raster:
self.rasterLayer = cur_layer
(uri_schema, uri_table) = self.controller.get_layer_source(cur_layer) # @UnusedVariable
if uri_table is not None:
if self.table_vector in uri_table:
self.vectorLayer = cur_layer
# Check config
if self.vectorLayer is None or self.rasterLayer is None:
self.configAction.activate(QAction.Trigger)
# Set snapping
if self.vectorLayer <> None:
self.snapperManager.snapToLayer(self.vectorLayer)
else:
self.controller.show_warning("Check vector_layer in config form, layer does not exist or is not defined.")
return 0
if self.rasterLayer == None:
self.controller.show_warning("Check raster_layer in config form, layer does not exist or is not defined.")
return 0
return 1
class ObstacleAreaJigSelectArea(QgsMapTool):
def __init__(self, canvas, areaType):
self.mCanvas = canvas
self.areaType = areaType
QgsMapTool.__init__(self, canvas)
self.mCursor = Qt.ArrowCursor
self.mRubberBand = None
self.mDragging = False
self.mSelectRect = QRect()
self.mRubberBandResult = None
self.mSnapper = QgsMapCanvasSnapper(canvas)
self.lineCount = 0
self.resultGeomList = []
self.geomList = []
self.area = None
self.isFinished = False
# QgsRubberBand* mRubberBand;
# def reset(self):
# self.startPoint = None
# self.endPoint = None
# self.isDrawing = False
# SelectByRect.RubberRect.reset(QGis.Polygon)
# self.layer = self.canvas.currentLayer()
def canvasPressEvent(self, e):
QgisHelper.ClearRubberBandInCanvas(define._canvas)
self.mSelectRect.setRect( 0, 0, 0, 0 )
self.mRubberBand = QgsRubberBand( self.mCanvas, QGis.Polygon )
self.startPoint, self.pointID, self.layer= self.snapPoint(e.pos())
def canvasMoveEvent(self, e):
if self.areaType == ProtectionAreaType.Secondary:
if self.lineCount == 0:
define._messageLabel.setText("Select a line or arc representing the INNER edge of the secondary area.")
elif self.lineCount == 1:
define._messageLabel.setText("Select a line representing the OUTER edge of the secondary area.")
elif self.areaType == ProtectionAreaType.Primary:
define._messageLabel.setText("")
elif self.areaType == ProtectionAreaType.PrimaryAndSecondary:
if self.lineCount == 0:
define._messageLabel.setText("Select a line or arc representing the INNER edge of the FIRST secondary area.")
elif self.lineCount == 1:
define._messageLabel.setText("Select a line representing the OUTER edge of the FIRST secondary area.")
elif self.lineCount == 2:
define._messageLabel.setText("Select a line or arc representing the INNER edge of the SECOND secondary area.")
elif self.lineCount == 3:
define._messageLabel.setText("Select a line representing the OUTER edge of the SECOND secondary area.")
else:
define._messageLabel.setText("")
if ( e.buttons() != Qt.LeftButton ):
return
if ( not self.mDragging ):
self.mDragging = True
self.mSelectRect.setTopLeft( e.pos() )
self.mSelectRect.setBottomRight( e.pos() )
QgsMapToolSelectUtils.setRubberBand( self.mCanvas, self.mSelectRect,self.mRubberBand )
def canvasReleaseEvent(self, e):
self.endPoint, self.pointID, self.layer= self.snapPoint(e.pos())
vlayer = QgsMapToolSelectUtils.getCurrentVectorLayer( self.mCanvas )
if ( vlayer == None ):
if ( self.mRubberBand != None):
self.mRubberBand.reset( QGis.Polygon )
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
return
if (not self.mDragging ):
QgsMapToolSelectUtils.expandSelectRectangle(self. mSelectRect, vlayer, e.pos() )
else:
if ( self.mSelectRect.width() == 1 ):
self.mSelectRect.setLeft( self.mSelectRect.left() + 1 )
if ( self.mSelectRect.height() == 1 ):
self.mSelectRect.setBottom( self.mSelectRect.bottom() + 1 )
if ( self.mRubberBand != None ):
QgsMapToolSelectUtils.setRubberBand( self.mCanvas, self.mSelectRect, self.mRubberBand )
selectGeom = self.mRubberBand.asGeometry()
selectedFeatures = QgsMapToolSelectUtils.setSelectFeaturesOrRubberband_Tas_1( self.mCanvas, selectGeom, e )
if len(selectedFeatures) > 0:
self.lineCount += 1
geom = selectedFeatures[0].geometry()
resultArray = QgisHelper.findArcOrLineInLineGeometry(geom, selectGeom)
# if resultArray != None:
# bulge = MathHelper.smethod_60(resultArray[0], resultArray[int(len(resultArray)/2)], resultArray[len(resultArray)-1])
# bulge1 = MathHelper.smethod_60(resultArray[len(resultArray)-1], resultArray[int(len(resultArray)/2)], resultArray[0])
# n = 0
pointArray0 = geom.asPolyline()
self.resultGeomList.append(resultArray)
self.geomList.append(pointArray0)
if self.lineCount == 2 and self.areaType != ProtectionAreaType.PrimaryAndSecondary and self.areaType != ProtectionAreaType.Complex:
self.area = self.makeArea(self.resultGeomList, self.areaType)
pointArray = self.getPointArray(self.resultGeomList).method_14_closed()
self.mRubberBandResult = None
self.mRubberBandResult = QgsRubberBand( self.mCanvas, QGis.Polygon )
self.mRubberBandResult.setFillColor(QColor(255, 255, 255, 100))
self.mRubberBandResult.setBorderColor(QColor(0, 0, 0))
for point in pointArray:
self.mRubberBandResult.addPoint(point)
self.mRubberBandResult.show()
self.emit(SIGNAL("outputResult"), self.area, self.mRubberBandResult)
self.lineCount = 0
self.resultGeomList = []
self.isFinished = True
# self.rubberBandLine.reset(QGis.Line)
elif self.lineCount == 4 and self.areaType == ProtectionAreaType.PrimaryAndSecondary:
self.area = self.makeArea(self.resultGeomList, self.areaType)
pointArray = self.getPointArray([self.resultGeomList[1], self.resultGeomList[3]]).method_14_closed()
self.mRubberBandResult = None
self.mRubberBandResult = QgsRubberBand( self.mCanvas, QGis.Polygon )
self.mRubberBandResult.setFillColor(QColor(255, 255, 255, 100))
self.mRubberBandResult.setBorderColor(QColor(0, 0, 0))
for point in pointArray:
self.mRubberBandResult.addPoint(point)
self.mRubberBandResult.show()
self.emit(SIGNAL("outputResult"), self.area, self.mRubberBandResult)
self.lineCount = 0
self.resultGeomList = []
# else:
# return
del selectGeom
self.mRubberBand.reset( QGis.Polygon )
del self.mRubberBand
self.mRubberBand = None
self.mDragging = False
def getPointArray(self, geomList):
pointArrayInner = geomList[0]
pointArray1Outer = geomList[1]
innerStartPoint = pointArrayInner[0]
innerEndPoint = pointArrayInner[1]
innerBulge = pointArrayInner[2]
outerStartPoint = pointArray1Outer[0]
outerEndPoint = pointArray1Outer[1]
outerBulge = pointArray1Outer[2]
line0 = QgsGeometry.fromPolyline([innerStartPoint, outerStartPoint])
line1 = QgsGeometry.fromPolyline([innerEndPoint, outerEndPoint])
# for i in range(1, len(pointArray0)):
if line0.intersects(line1):
tempPoint = outerStartPoint
outerStartPoint = outerEndPoint
outerEndPoint = tempPoint
outerBulge = -outerBulge
polylineArea = PolylineArea()
polylineArea.Add(PolylineAreaPoint(innerStartPoint, innerBulge))
polylineArea.Add(PolylineAreaPoint(innerEndPoint))
polylineArea.Add(PolylineAreaPoint(outerEndPoint, -outerBulge))
polylineArea.Add(PolylineAreaPoint(outerStartPoint))
return polylineArea
def makeArea(self, geomList, areaType):
if areaType == ProtectionAreaType.Primary or areaType == ProtectionAreaType.Secondary:
return self.makePrimaryAreaOrSecondaryArea(geomList, areaType)
elif areaType == ProtectionAreaType.PrimaryAndSecondary:
pointArray0 = geomList[0]
pointArray1 = geomList[1]
pointArray2 = geomList[2]
pointArray3 = geomList[3]
primaryArea = self.makePrimaryAreaOrSecondaryArea([pointArray0, pointArray2], ProtectionAreaType.Primary)
secondaryArea1 = self.makePrimaryAreaOrSecondaryArea([pointArray0, pointArray1], ProtectionAreaType.Secondary)
secondaryArea2 = self.makePrimaryAreaOrSecondaryArea([pointArray2, pointArray3], ProtectionAreaType.Secondary)
return PrimarySecondaryObstacleArea(primaryArea, secondaryArea1, secondaryArea2)
# if len(geomList[0]) == 2 and len(geomList[1]) == 2 and len(geomList[2]) == 2 and len(geomList[3]) == 2:
# for i in range(1, len(geomList)):
# pointArray0 = geomList[0]
# pointArray1 = geomList[i]
# line0 = QgsGeometry.fromPolyline([pointArray0[0], pointArray1[0]])
# line1 = QgsGeometry.fromPolyline([pointArray0[len(pointArray0) - 1], pointArray1[len(pointArray1) - 1]])
# if line0.intersects(line1):
# pointArray1.reverse()
# pointArray0 = geomList[0]
# pointArray1 = geomList[1]
# pointArray2 = geomList[2]
# pointArray3 = geomList[3]
# area = PrimarySecondaryObstacleArea()
# area.set_areas(pointArray0, pointArray1, pointArray2, pointArray3)
# return area
# return None
return None
def makePrimaryAreaOrSecondaryArea(self, geomList, areaType):
pointArrayInner = geomList[0]
pointArray1Outer = geomList[1]
innerStartPoint = pointArrayInner[0]
innerEndPoint = pointArrayInner[1]
innerBulge = pointArrayInner[2]
outerStartPoint = pointArray1Outer[0]
outerEndPoint = pointArray1Outer[1]
outerBulge = pointArray1Outer[2]
line0 = QgsGeometry.fromPolyline([innerStartPoint, outerStartPoint])
line1 = QgsGeometry.fromPolyline([innerEndPoint, outerEndPoint])
# for i in range(1, len(pointArray0)):
if line0.intersects(line1):
tempPoint = Point3D(outerStartPoint.get_X(), outerStartPoint.get_Y())
outerStartPoint = Point3D(outerEndPoint.get_X(), outerEndPoint.get_Y())
outerEndPoint = Point3D(tempPoint.get_X(), tempPoint.get_Y())
outerBulge = -outerBulge
if areaType == ProtectionAreaType.Primary:
polylineArea = PolylineArea()
polylineArea.Add(PolylineAreaPoint(innerStartPoint, innerBulge))
polylineArea.Add(PolylineAreaPoint(innerEndPoint))
polylineArea.Add(PolylineAreaPoint(outerEndPoint, -outerBulge))
polylineArea.Add(PolylineAreaPoint(outerStartPoint))
return PrimaryObstacleArea(polylineArea)
elif areaType == ProtectionAreaType.Secondary:
if innerBulge == 0 and outerBulge == 0:
return SecondaryObstacleArea(innerStartPoint, innerEndPoint, outerStartPoint, outerEndPoint, MathHelper.getBearing(innerStartPoint, innerEndPoint))
elif innerBulge != 0 and outerBulge != 0:
if round(innerBulge, 1) != round(outerBulge, 1):
return None
innerCenterPoint = MathHelper.smethod_71(innerStartPoint, innerEndPoint, innerBulge)
outerCenterPoint = MathHelper.smethod_71(outerStartPoint, outerEndPoint, outerBulge)
innerRadius = MathHelper.calcDistance(innerCenterPoint, innerStartPoint);
outerRadius = MathHelper.calcDistance(outerCenterPoint, outerStartPoint);
bearing = (MathHelper.getBearing(innerCenterPoint, innerStartPoint) + MathHelper.getBearing(innerCenterPoint, innerEndPoint)) / 2
innerMiddlePoint = MathHelper.distanceBearingPoint(innerCenterPoint, bearing, innerRadius)
if round(MathHelper.smethod_60(innerStartPoint, innerMiddlePoint, innerEndPoint), 4) != round(outerBulge, 4):
bearing += 3.14159265358979
innerMiddlePoint = MathHelper.distanceBearingPoint(innerCenterPoint, bearing, innerRadius)
bearing = (MathHelper.getBearing(outerCenterPoint, outerStartPoint) + MathHelper.getBearing(outerCenterPoint, outerEndPoint)) / 2
outerMiddlePoint = MathHelper.distanceBearingPoint(outerCenterPoint, bearing, outerRadius)
if round(MathHelper.smethod_60(outerStartPoint, outerMiddlePoint, outerEndPoint), 4) != round(outerBulge, 4):
bearing += 3.14159265358979
outerMiddlePoint = MathHelper.distanceBearingPoint(outerCenterPoint, bearing, outerRadius)
return SecondaryObstacleArea(innerStartPoint, innerMiddlePoint, innerEndPoint, outerStartPoint, None, outerMiddlePoint, outerEndPoint, innerBulge, innerBulge)
return None
def snapPoint(self, p, bNone = False):
if define._snapping == False:
return (define._canvas.getCoordinateTransform().toMapCoordinates( p ), None, None)
snappingResults = self.mSnapper.snapToBackgroundLayers( p )
if ( snappingResults[0] != 0 or len(snappingResults[1]) < 1 ):
if bNone:
return (None, None, None)
else:
return (define._canvas.getCoordinateTransform().toMapCoordinates( p ), None, None)
else:
return (snappingResults[1][0].snappedVertex, snappingResults[1][0].snappedAtGeometry, snappingResults[1][0].layer)
class ImageAreaSelector(QtGui.QWidget):
'''This widget provides means to visually crop a portion of
an image by selecting it'''
# pylint: disable=W0612
NAME = 'ImageAreaSelector'
DESCRIPTION = 'A widget used to select part of an image'
AUTHOR = 'Gabriele "Whisky" Visconti'
WEBSITE = ''
# pylint: enable=W0612
selection_changed = QtCore.pyqtSignal()
def __init__(self, pixmap, parent=None):
'''Constructor'''
QtGui.QWidget.__init__(self, parent)
self._pixmap = pixmap
self._selection_rect = QRect()
self._image_origin = QPoint()
self._resize_start = None
self._drag_start = None
self._handle_size = QSize(-10, -10)
self._painter = QtGui.QPainter()
self._hl_color1 = QtGui.QPalette().color(QtGui.QPalette.Highlight)
self._hl_color2 = QtGui.QPalette().color(QtGui.QPalette.Highlight)
self._hl_color2.setAlpha(150)
self._zoom = 1.0
self.adjust_minum_size()
self.setBackgroundRole(QtGui.QPalette.Dark)
self.setMouseTracking(True)
self.setCursor(Qt.CrossCursor)
# -------------------- [BEGIN] QT_OVERRIDE
def mousePressEvent(self, event):
'''Overrides QWidget's mousePressEvent. Handles starting
a new selection, starting a drag operation'''
# pylint: disable=C0103
mouse_pos = event.pos() / self._zoom
sel_rect = self._selection_rect
if not event.button() == Qt.LeftButton:
return
if (not sel_rect.isNull()) and sel_rect.contains(mouse_pos, True):
handle_rect = QRect(sel_rect.bottomRight(), self._handle_size)
if handle_rect.contains(mouse_pos):
self._resize_start = mouse_pos
else:
self._drag_start = mouse_pos
else:
self._resize_start = mouse_pos
sel_rect.setTopLeft(mouse_pos)
self._selection_rect.setSize(QSize(0, 0))
def mouseMoveEvent(self, event):
'''Overrides QWidget's mouseMoveEvent. Handles resizing
and dragging operations on selection'''
# pylint: disable=C0103
sel_rect = self._selection_rect
if self._resize_start:
resize_end = event.pos() / self._zoom
sel_rect.setBottomRight(sel_rect.bottomRight() +
(resize_end - self._resize_start))
self._resize_start = resize_end
self.make_selection_square()
self.update()
elif self._drag_start is not None:
drag_end = event.pos() / self._zoom
sel_rect.translate(drag_end - self._drag_start)
self._drag_start = drag_end
self.update()
# cursor shape:
mouse_pos = event.pos() / self._zoom
if (not sel_rect.isNull()) and sel_rect.contains(mouse_pos, True):
handle_rect = QRect(sel_rect.bottomRight(), self._handle_size)
if handle_rect.contains(mouse_pos):
self.setCursor(Qt.SizeFDiagCursor)
else:
self.setCursor(Qt.OpenHandCursor)
else:
self.setCursor(Qt.CrossCursor)
def mouseReleaseEvent(self, event):
'''Overrides QWidget's mouseReleaseEvent. Handles ending a resizing or
draggin operation on the selection'''
# pylint: disable=C0103
self._selection_rect = self._selection_rect.normalized()
self._resize_start = None
self._drag_start = None
self.update()
if not self._selection_rect.isNull():
self.selection_changed.emit()
def paintEvent(self, event):
'''Overrides QWidtget's paintEvent.'''
# pylint: disable=C0103
QtGui.QWidget.paintEvent(self, event)
self._painter.begin(self)
pixmap_dest_rect = QRect(self._image_origin * self._zoom,
self._pixmap.size() * self._zoom)
self._painter.drawPixmap(pixmap_dest_rect, self._pixmap)
if not self._selection_rect.isNull():
# preparing the darkened frame:
sel_rect = self._selection_rect.normalized()
frame = QtGui.QPixmap(event.rect().size())
frame.fill(QtGui.QColor(0, 0, 0, 127))
frame_painter = QtGui.QPainter(frame)
# erase the selected area from the frame:
frame_painter.setCompositionMode(
QtGui.QPainter.CompositionMode_DestinationIn)
sel_rect_scaled = QRect(sel_rect.topLeft() * self._zoom,
sel_rect.size() * self._zoom)
frame_painter.fillRect(sel_rect_scaled, QtGui.QColor(0, 0, 0, 0))
# draw selection border :
frame_painter.setCompositionMode(
QtGui.QPainter.CompositionMode_SourceOver)
frame_painter.setPen(self._hl_color1)
frame_painter.drawRect(sel_rect_scaled)
# draw the resize grip (if possible)
if sel_rect_scaled.width() > 20 and sel_rect_scaled.height() > 20:
handle_rect = QRect(sel_rect_scaled.bottomRight(),
self._handle_size)
frame_painter.fillRect(handle_rect, self._hl_color2)
frame_painter.drawRect(handle_rect)
frame_painter.end()
# painting the darkened frame:
self._painter.drawPixmap(0, 0, frame)
self._painter.end()
def resizeEvent(self, event):
'''Overrides QWidget's resizeEvent. Handles image centering.'''
# pylint: disable=C0103
self.adjust_image_origin()
# -------------------- [END] QT_OVERRIDE
def adjust_image_origin(self):
'''Recalculates the top left corner's image position, so the
image is painted centered'''
# pylint: disable=C0103
new_size = self.size() / self._zoom
pix_size = self._pixmap.size()
dx = (new_size.width() - pix_size.width()) / 2
dy = (new_size.height() - pix_size.height()) / 2
new_image_origin = QPoint(dx, dy)
self._selection_rect.translate(new_image_origin - self._image_origin)
self._image_origin = new_image_origin
log.info('image origin: %s' % new_image_origin)
def select_unscaled(self):
'''Selects, if possible, a 96 x 96 square centered around the original
image. In this way the image won't be scaled but won't take up all the
96 x 96 area.'''
# pylint: disable=C0103
pix_size = self._pixmap.size()
if pix_size.width() <= 96 and pix_size.height() <= 96:
viewport_size = self.size()
x = (viewport_size.width() - 96) / 2
y = (viewport_size.height() - 96) / 2
self._selection_rect.setTopLeft(QPoint(x, y))
self._selection_rect.setSize(QSize(96, 96))
self.update()
self.selection_changed.emit()
def select_all(self):
'''Selects the whole image. Currently broken for images taller
than wide.'''
# TODO: make me work!
self._selection_rect.setTopLeft(self._image_origin)
self._selection_rect.setSize(self._pixmap.size())
self.update()
self.selection_changed.emit()
def rotate_left(self):
'''Rotates the image counterclockwise.'''
self._pixmap = self._pixmap.transformed(QtGui.QTransform().rotate(-90))
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def rotate_right(self):
'''Rotates the image clockwise'''
self._pixmap = self._pixmap.transformed(QtGui.QTransform().rotate(90))
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def adjust_minum_size(self):
'''Sets the new minimum size, calculated upon the image size
and the _zoom factor.'''
pixmap = self._pixmap
if pixmap.width() < 96 or pixmap.height() < 96:
min_size = QSize(96, 96)
else:
min_size = pixmap.size()
self.setMinimumSize(min_size * self._zoom)
def make_selection_square(self):
'''Modify the selected area making it square'''
wid = self._selection_rect.width()
self._selection_rect.setSize(QSize(wid, wid))
def set_zoom(self, zoomlevel):
'''Sets the specified zoomlevel'''
self._zoom = zoomlevel
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def fit_zoom(self):
'''Chooses a zoomlevel that makes visible the entire image.
Currently broken.'''
widget_wid = self.size().width()
widget_hei = self.size().height()
pixmap_wid = self._pixmap.width()
pixmap_hei = self._pixmap.height()
self._zoom = (min(widget_wid, widget_hei) /
min(pixmap_wid, pixmap_hei))
self.adjust_minum_size()
self.adjust_image_origin()
self.update()
self.selection_changed.emit()
def get_selected_pixmap(self):
'''Returns the pixmap contained in the selection rect.
Currently doesn't handle transparency correctly'''
sel_rect_scaled = QRect(self._selection_rect.topLeft() * self._zoom,
self._selection_rect.size() * self._zoom)
return QtGui.QPixmap.grabWidget(self, sel_rect_scaled)
class InfoTool(QgsMapTool):
infoResults = pyqtSignal(dict)
def __init__(self, canvas, snapradius = 2):
super(InfoTool, self).__init__(canvas)
self.canvas = canvas
self.radius = snapradius
self.band = QgsRubberBand(self.canvas)
self.band.setColor(QColor.fromRgb(224,162,16))
self.band.setWidth(3)
self.selectband = None
self.selectrect = QRect()
self.dragging = False
self.selectionlayers = []
def getFeatures(self, rect):
self.band.reset()
for layer in self.selectionlayers:
if (not layer.type() == QgsMapLayer.VectorLayer
or layer.geometryType() == QGis.NoGeometry):
continue
rect = self.toLayerCoordinates(layer, rect)
rq = QgsFeatureRequest().setFilterRect(rect).setFlags(QgsFeatureRequest.ExactIntersect)
features = []
for feature in layer.getFeatures(rq):
if feature.isValid():
features.append(feature)
yield layer, features
def toSearchRect(self, point):
searchRadius = self.canvas.extent().width() * ( self.radius / 100.0 )
point = self.toMapCoordinates(point)
rect = QgsRectangle()
rect.setXMinimum(point.x() - searchRadius)
rect.setXMaximum(point.x() + searchRadius)
rect.setYMinimum(point.y() - searchRadius)
rect.setYMaximum(point.y() + searchRadius)
return rect
def canvasPressEvent(self, event):
self.dragging = False
self.selectrect.setRect( 0, 0, 0, 0 )
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon )
self.selectband.setColor(QColor.fromRgb(0,0,255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.selectrect.setTopLeft(event.pos())
self.dragging = True
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect, self.selectband)
def canvasReleaseEvent(self, event):
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
else:
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
results = OrderedDict((l,f) for l, f in self.getFeatures(rect))
print results
self.infoResults.emit(results)
class EditTool(MapTool):
"""
Inspection tool which copies the feature to a new layer
and copies selected data from the underlying feature.
"""
finished = pyqtSignal(object, QgsFeature)
featuresfound = pyqtSignal(dict)
def __init__(self, canvas, forms, snapradius=2):
MapTool.__init__(self, canvas, [])
self.canvas = canvas
self.radius = snapradius
self.forms = forms
self.band = QgsRubberBand(self.canvas)
self.band.setColor(QColor.fromRgb(224, 162, 16))
self.band.setWidth(3)
self.selectband = None
self.selectrect = QRect()
self.dragging = False
self.cursor = QCursor(
QPixmap([
"16 16 3 1", " c None", ". c #FF0000",
"+ c #FFFFFF", " ", " +.+ ",
" ++.++ ", " +.....+ ", " +. .+ ",
" +. . .+ ", " +. . .+ ", " ++. . .++",
" ... ...+... ...", " ++. . .++", " +. . .+ ",
" +. . .+ ", " ++. .+ ", " ++.....+ ",
" ++.++ ", " +.+ "
]))
def addForm(self, form):
self.forms.append(form)
self.layersupdated.emit(True)
def layers(self):
"""
Return a set of layers that this edit tool can work on
"""
return set([form.QGISLayer for form in self.forms])
def formsforlayer(self, layer):
for form in self.forms:
if form.QGISLayer == layer:
yield form
def reset(self):
self.forms = []
self.layersupdated.emit(False)
def getFeatures(self, rect):
rq = QgsFeatureRequest().setFilterRect(rect)
self.band.reset()
for layer in self.layers():
forms = list(self.formsforlayer(layer))
rq = QgsFeatureRequest().setFilterRect(rect)
for feature in layer.getFeatures(rq):
if feature.isValid():
yield feature, forms
def toSearchRect(self, point):
searchRadius = self.canvas.extent().width() * (self.radius / 100.0)
point = self.toMapCoordinates(point)
rect = QgsRectangle()
rect.setXMinimum(point.x() - searchRadius)
rect.setXMaximum(point.x() + searchRadius)
rect.setYMinimum(point.y() - searchRadius)
rect.setYMaximum(point.y() + searchRadius)
return rect
def canvasPressEvent(self, event):
self.selectrect.setRect(0, 0, 0, 0)
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon)
self.selectband.setColor(QColor.fromRgb(0, 0, 255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.dragging = True
self.selectrect.setTopLeft(event.pos())
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect,
self.selectband)
def canvasReleaseEvent(self, event):
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
else:
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
features = dict(self.getFeatures(rect))
if len(features) == 1:
feature = features.keys()[0]
forms = features.values()[0]
if len(forms) == 1:
self.finished.emit(forms[0], feature)
else:
self.featuresfound.emit(features)
elif len(features) > 0:
self.featuresfound.emit(features)
def isEditTool(self):
return True
class EditTool(MapTool):
"""
Inspection tool which copies the feature to a new layer
and copies selected data from the underlying feature.
"""
finished = pyqtSignal(object, QgsFeature)
featuresfound = pyqtSignal(dict)
def __init__(self, canvas, forms, snapradius = 2):
MapTool.__init__(self, canvas, [])
self.canvas = canvas
self.radius = snapradius
self.forms = forms
self.band = QgsRubberBand(self.canvas)
self.band.setColor(QColor.fromRgb(224,162,16))
self.band.setWidth(3)
self.selectband = None
self.selectrect = QRect()
self.dragging = False
self.cursor = QCursor(QPixmap(["16 16 3 1",
" c None",
". c #FF0000",
"+ c #FFFFFF",
" ",
" +.+ ",
" ++.++ ",
" +.....+ ",
" +. .+ ",
" +. . .+ ",
" +. . .+ ",
" ++. . .++",
" ... ...+... ...",
" ++. . .++",
" +. . .+ ",
" +. . .+ ",
" ++. .+ ",
" ++.....+ ",
" ++.++ ",
" +.+ "]))
def addForm(self, form):
self.forms.append(form)
self.layersupdated.emit(True)
def layers(self):
"""
Return a set of layers that this edit tool can work on
"""
return set([form.QGISLayer for form in self.forms])
def formsforlayer(self, layer):
for form in self.forms:
if form.QGISLayer == layer:
yield form
def reset(self):
self.forms = []
self.layersupdated.emit(False)
def getFeatures(self, rect):
rq = QgsFeatureRequest().setFilterRect(rect)
self.band.reset()
for layer in self.layers():
forms = list(self.formsforlayer(layer))
rq = QgsFeatureRequest().setFilterRect(rect)
for feature in layer.getFeatures(rq):
if feature.isValid():
yield feature, forms
def toSearchRect(self, point):
searchRadius = self.canvas.extent().width() * ( self.radius / 100.0 )
point = self.toMapCoordinates(point)
rect = QgsRectangle()
rect.setXMinimum(point.x() - searchRadius)
rect.setXMaximum(point.x() + searchRadius)
rect.setYMinimum(point.y() - searchRadius)
rect.setYMaximum(point.y() + searchRadius)
return rect
def canvasPressEvent(self, event):
self.selectrect.setRect( 0, 0, 0, 0 )
self.selectband = QgsRubberBand(self.canvas, QGis.Polygon )
self.selectband.setColor(QColor.fromRgb(0,0,255, 65))
self.selectband.setWidth(5)
def canvasMoveEvent(self, event):
if not event.buttons() == Qt.LeftButton:
return
if not self.dragging:
self.dragging = True
self.selectrect.setTopLeft(event.pos())
self.selectrect.setBottomRight(event.pos())
maptoolutils.setRubberBand(self.canvas, self.selectrect, self.selectband)
def canvasReleaseEvent(self, event):
if self.dragging:
geometry = self.selectband.asGeometry()
if not geometry:
return
rect = geometry.boundingBox()
else:
rect = self.toSearchRect(event.pos())
self.dragging = False
self.selectband.reset()
features = dict(self.getFeatures(rect))
print features
if len(features) == 1:
feature = features.keys()[0]
forms = features.values()[0]
if len(forms) == 1:
self.finished.emit(forms[0], feature)
else:
self.featuresfound.emit(features)
elif len(features) > 0:
self.featuresfound.emit(features)
def isEditTool(self):
return True
class ConnecMapTool(ParentMapTool):
""" Button 20. User select connections from layer 'connec'
Execute SQL function: 'gw_fct_connect_to_network' """
def __init__(self, iface, settings, action, index_action):
""" Class constructor """
# Call ParentMapTool constructor
super(ConnecMapTool, self).__init__(iface, settings, action, index_action)
self.dragging = False
# Vertex marker
self.vertexMarker = QgsVertexMarker(self.canvas)
self.vertexMarker.setColor(QColor(255, 25, 25))
self.vertexMarker.setIconSize(11)
self.vertexMarker.setIconType(QgsVertexMarker.ICON_BOX) # or ICON_CROSS, ICON_X
self.vertexMarker.setPenWidth(5)
# Rubber band
self.rubberBand = QgsRubberBand(self.canvas, True)
mFillColor = QColor(100, 0, 0)
self.rubberBand.setColor(mFillColor)
self.rubberBand.setWidth(3)
mBorderColor = QColor(254, 58, 29)
self.rubberBand.setBorderColor(mBorderColor)
# Select rectangle
self.selectRect = QRect()
def reset(self):
""" Clear selected features """
layer = self.layer_connec
if layer is not None:
layer.removeSelection()
# Graphic elements
self.rubberBand.reset()
""" QgsMapTools inherited event functions """
def canvasMoveEvent(self, event):
""" With left click the digitizing is finished """
if event.buttons() == Qt.LeftButton:
if not self.dragging:
self.dragging = True
self.selectRect.setTopLeft(event.pos())
self.selectRect.setBottomRight(event.pos())
self.set_rubber_band()
else:
# Hide highlight
self.vertexMarker.hide()
# Get the click
x = event.pos().x()
y = event.pos().y()
eventPoint = QPoint(x, y)
# Snapping
(retval, result) = self.snapper.snapToBackgroundLayers(eventPoint) # @UnusedVariable
# That's the snapped point
if result <> []:
# Check Arc or Node
for snapPoint in result:
if snapPoint.layer == self.layer_connec:
# Get the point
point = QgsPoint(result[0].snappedVertex)
# Add marker
self.vertexMarker.setCenter(point)
self.vertexMarker.show()
break
def canvasPressEvent(self, event):
self.selectRect.setRect(0, 0, 0, 0)
self.rubberBand.reset()
def canvasReleaseEvent(self, event):
""" With left click the digitizing is finished """
if event.button() == Qt.LeftButton:
# Get the click
x = event.pos().x()
y = event.pos().y()
eventPoint = QPoint(x, y)
# Node layer
layer = self.layer_connec
# Not dragging, just simple selection
if not self.dragging:
# Snap to node
(retval, result) = self.snapper.snapToBackgroundLayers(eventPoint) # @UnusedVariable
# That's the snapped point
if result <> [] and (result[0].layer.name() == self.layer_connec.name()):
point = QgsPoint(result[0].snappedVertex) # @UnusedVariable
layer.removeSelection()
layer.select([result[0].snappedAtGeometry])
# Create link
self.link_connec()
# Hide highlight
self.vertexMarker.hide()
else:
# Set valid values for rectangle's width and height
if self.selectRect.width() == 1:
self.selectRect.setLeft(self.selectRect.left() + 1)
if self.selectRect.height() == 1:
self.selectRect.setBottom(self.selectRect.bottom() + 1)
self.set_rubber_band()
selectGeom = self.rubberBand.asGeometry() # @UnusedVariable
self.select_multiple_features(self.selectRectMapCoord)
self.dragging = False
# Create link
self.link_connec()
elif event.button() == Qt.RightButton:
# Create link
self.link_connec()
def activate(self):
# Check button
self.action().setChecked(True)
# Rubber band
self.rubberBand.reset()
# Store user snapping configuration
self.snapperManager.storeSnappingOptions()
# Clear snapping
self.snapperManager.clearSnapping()
# Set snapping to arc and node
self.snapperManager.snapToConnec()
# Change cursor
self.canvas.setCursor(self.cursor)
# Show help message when action is activated
if self.show_help:
message = (
"Right click to use current selection, select connec points by clicking or dragging (selection box)"
)
self.controller.show_info(message, context_name="ui_message")
# Control current layer (due to QGIS bug in snapping system)
try:
if self.canvas.currentLayer().type() == QgsMapLayer.VectorLayer:
self.canvas.setCurrentLayer(self.layer_connec)
except:
self.canvas.setCurrentLayer(self.layer_connec)
def deactivate(self):
# Check button
self.action().setChecked(False)
# Rubber band
self.rubberBand.reset()
# Restore previous snapping
self.snapperManager.recoverSnappingOptions()
# Recover cursor
self.canvas.setCursor(self.stdCursor)
def link_connec(self):
""" Link selected connec to the pipe """
# Get selected features (from layer 'connec')
aux = "{"
layer = self.layer_connec
if layer.selectedFeatureCount() == 0:
message = "You have to select at least one feature!"
self.controller.show_warning(message, context_name="ui_message")
return
features = layer.selectedFeatures()
for feature in features:
connec_id = feature.attribute("connec_id")
aux += str(connec_id) + ", "
connec_array = aux[:-2] + "}"
# Execute function
function_name = "gw_fct_connect_to_network"
sql = "SELECT " + self.schema_name + "." + function_name + "('" + connec_array + "');"
self.controller.execute_sql(sql)
# Refresh map canvas
self.rubberBand.reset()
self.iface.mapCanvas().refresh()
def set_rubber_band(self):
# Coordinates transform
transform = self.canvas.getCoordinateTransform()
# Coordinates
ll = transform.toMapCoordinates(self.selectRect.left(), self.selectRect.bottom())
lr = transform.toMapCoordinates(self.selectRect.right(), self.selectRect.bottom())
ul = transform.toMapCoordinates(self.selectRect.left(), self.selectRect.top())
ur = transform.toMapCoordinates(self.selectRect.right(), self.selectRect.top())
# Rubber band
self.rubberBand.reset()
self.rubberBand.addPoint(ll, False)
self.rubberBand.addPoint(lr, False)
self.rubberBand.addPoint(ur, False)
self.rubberBand.addPoint(ul, False)
self.rubberBand.addPoint(ll, True)
self.selectRectMapCoord = QgsRectangle(ll, ur)
def select_multiple_features(self, selectGeometry):
# Default choice
behaviour = QgsVectorLayer.SetSelection
# Modifiers
modifiers = QApplication.keyboardModifiers()
if modifiers == Qt.ControlModifier:
behaviour = QgsVectorLayer.AddToSelection
elif modifiers == Qt.ShiftModifier:
behaviour = QgsVectorLayer.RemoveFromSelection
if self.layer_connec is None:
return
# Change cursor
QApplication.setOverrideCursor(Qt.WaitCursor)
# Selection
self.layer_connec.selectByRect(selectGeometry, behaviour)
# Old cursor
QApplication.restoreOverrideCursor()
