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qad_pedit_maptool.py
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qad_pedit_maptool.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
QAD Quantum Aided Design plugin
classe per gestire il map tool in ambito del comando pedit
-------------------
begin : 2013-05-22
copyright : iiiii
email : hhhhh
developers : bbbbb aaaaa ggggg
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
from qgis.gui import *
import math
import qad_utils
from qad_snapper import *
from qad_variables import *
from qad_getpoint import *
from qad_rubberband import QadRubberBand
from qad_highlight import QadHighlight
from qad_dim import QadDimStyles
#===============================================================================
# Qad_pedit_maptool_ModeEnum class.
#===============================================================================
class Qad_pedit_maptool_ModeEnum():
# si richiede la selezione di un'entità
ASK_FOR_ENTITY_SEL = 1
# non si richiede niente
NONE = 2
# si richiede il primo punto per calcolo distanza di approssimazione
ASK_FOR_FIRST_TOLERANCE_PT = 3
# noto il primo punto per calcolo distanza di approssimazione si richiede il secondo punto
FIRST_TOLERANCE_PT_KNOWN_ASK_FOR_SECOND_PT = 4
# si richiede un nuovo vertice da inserire
ASK_FOR_NEW_VERTEX = 5
# si richiede la nuova posizione di un vertice da spostare
ASK_FOR_MOVE_VERTEX = 6
# si richiede la posizione più vicina ad un vertice
ASK_FOR_VERTEX = 7
# si richede il punto base (grip mode)
ASK_FOR_BASE_PT = 8
#===============================================================================
# Qad_pedit_maptool class
#===============================================================================
class Qad_pedit_maptool(QadGetPoint):
def __init__(self, plugIn):
QadGetPoint.__init__(self, plugIn)
self.firstPt = None
self.mode = None
self.layer = None
self.linearObjectList = qad_utils.QadLinearObjectList()
self.tolerance2ApproxCurve = None
self.vertexAt = 0
self.vertexPt = None
self.after = True
self.basePt = None
self.__highlight = QadHighlight(self.canvas)
def hidePointMapToolMarkers(self):
QadGetPoint.hidePointMapToolMarkers(self)
self.__highlight.hide()
def showPointMapToolMarkers(self):
QadGetPoint.showPointMapToolMarkers(self)
self.__highlight.show()
def clear(self):
QadGetPoint.clear(self)
self.__highlight.reset()
self.mode = None
if self.basePt is not None:
del(self.basePt)
self.basePt = None
def setLinearObjectList(self, linearObjectList, layer):
self.linearObjectList.set(linearObjectList)
self.layer = layer
self.tolerance2ApproxCurve = QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE"))
def setVertexAt(self, vertexAt, after = None):
if vertexAt == self.linearObjectList.qty():
self.firstPt = self.linearObjectList.getLinearObjectAt(-1).getEndPt()
else:
self.firstPt = self.linearObjectList.getLinearObjectAt(vertexAt).getStartPt()
self.vertexPt = QgsPoint(self.firstPt)
self.vertexAt = vertexAt
self.after = after
def canvasMoveEvent(self, event):
QadGetPoint.canvasMoveEvent(self, event)
self.__highlight.reset()
tmpLinearObjectList = None
# si richiede un nuovo vertice da inserire
if self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_NEW_VERTEX:
if self.basePt is not None:
offSetX = self.tmpPoint.x() - self.basePt.x()
offSetY = self.tmpPoint.y() - self.basePt.y()
newPt = QgsPoint(self.vertexPt.x() + offSetX, self.vertexPt.y() + offSetY)
else:
newPt = QgsPoint(self.tmpPoint)
tmpLinearObjectList = qad_utils.QadLinearObjectList()
tmpLinearObjectList.set(self.linearObjectList)
if self.after: # dopo
if self.vertexAt == tmpLinearObjectList.qty() and tmpLinearObjectList.isClosed():
tmpLinearObjectList.insertPoint(0, newPt)
else:
tmpLinearObjectList.insertPoint(self.vertexAt, newPt)
else: # prima
if self.vertexAt == 0 and tmpLinearObjectList.isClosed():
tmpLinearObjectList.insertPoint(tmpLinearObjectList.qty() - 1, newPt)
else:
tmpLinearObjectList.insertPoint(self.vertexAt - 1, newPt)
elif self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_MOVE_VERTEX:
newPt = QgsPoint(self.tmpPoint)
tmpLinearObjectList = qad_utils.QadLinearObjectList()
tmpLinearObjectList.set(self.linearObjectList)
tmpLinearObjectList.movePoint(self.vertexAt, newPt)
if tmpLinearObjectList is not None:
pts = tmpLinearObjectList.asPolyline(self.tolerance2ApproxCurve)
if self.layer.geometryType() == QGis.Polygon:
geom = QgsGeometry.fromPolygon([pts])
else:
geom = QgsGeometry.fromPolyline(pts)
# trasformo la geometria nel crs del layer
self.__highlight.addGeometry(self.mapToLayerCoordinates(self.layer, geom), self.layer)
def activate(self):
QadGetPoint.activate(self)
self.__highlight.show()
def deactivate(self):
try: # necessario perché se si chiude QGIS parte questo evento nonostante non ci sia più l'oggetto maptool !
QadGetPoint.deactivate(self)
self.__highlight.hide()
except:
pass
def setMode(self, mode):
self.mode = mode
# si richiede la selezione di un'entità
if self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_ENTITY_SEL:
self.setSelectionMode(QadGetPointSelectionModeEnum.ENTITY_SELECTION)
# solo layer lineari o poligono editabili che non appartengano a quote
layerList = []
for layer in self.plugIn.canvas.layers():
if layer.type() == QgsMapLayer.VectorLayer and \
(layer.geometryType() == QGis.Line or layer.geometryType() == QGis.Polygon) and \
layer.isEditable():
if len(QadDimStyles.getDimListByLayer(layer)) == 0:
layerList.append(layer)
self.layersToCheck = layerList
self.setSnapType(QadSnapTypeEnum.DISABLE)
# non si richiede niente
elif self.mode == Qad_pedit_maptool_ModeEnum.NONE:
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.NONE)
# si richiede il primo punto per calcolo distanza di approssimazione
# si richiede la posizione più vicina ad un vertice
elif self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_FIRST_TOLERANCE_PT:
self.onlyEditableLayers = False
self.checkPointLayer = True
self.checkLineLayer = True
self.checkPolygonLayer = True
self.setSnapType()
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.NONE)
# noto il primo punto per calcolo distanza di approssimazione si richiede il secondo punto
elif self.mode == Qad_pedit_maptool_ModeEnum.FIRST_TOLERANCE_PT_KNOWN_ASK_FOR_SECOND_PT or \
self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_NEW_VERTEX or \
self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_MOVE_VERTEX:
self.onlyEditableLayers = False
self.checkPointLayer = True
self.checkLineLayer = True
self.checkPolygonLayer = True
self.setSnapType()
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.ELASTIC_LINE)
self.setStartPoint(self.firstPt)
# si richiede la posizione più vicina ad un vertice
elif self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_VERTEX:
self.setSnapType(QadSnapTypeEnum.DISABLE)
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.NONE)
# si richede il punto base (grip mode)
elif self.mode == Qad_pedit_maptool_ModeEnum.ASK_FOR_BASE_PT:
self.setSnapType()
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.NONE)
#===============================================================================
# Qad_gripLineToArcConvert_maptool_ModeEnum class.
#===============================================================================
class Qad_gripLineToArcConvert_maptool_ModeEnum():
# noti il punto iniziale e finale dell'arco si richiede il punto intermedio
START_END_PT_KNOWN_ASK_FOR_SECOND_PT = 1
# non si richiede niente
NONE = 2
#===============================================================================
# Qad_gripLineToArcConvert_maptool class
#===============================================================================
class Qad_gripLineToArcConvert_maptool(QadGetPoint):
def __init__(self, plugIn):
QadGetPoint.__init__(self, plugIn)
self.firstPt = None
self.mode = None
self.layer = None
self.linearObjectList = qad_utils.QadLinearObjectList()
self.linearObject = None
self.startPt = None
self.endPt = None
self.tolerance2ApproxCurve = None
self.__highlight = QadHighlight(self.canvas)
def hidePointMapToolMarkers(self):
QadGetPoint.hidePointMapToolMarkers(self)
self.__highlight.hide()
def showPointMapToolMarkers(self):
QadGetPoint.showPointMapToolMarkers(self)
self.__highlight.show()
def clear(self):
QadGetPoint.clear(self)
self.__highlight.reset()
self.mode = None
def setLinearObjectList(self, linearObjectList, layer, partAt):
self.linearObjectList.set(linearObjectList)
self.layer = layer
self.tolerance2ApproxCurve = QadVariables.get(QadMsg.translate("Environment variables", "TOLERANCE2APPROXCURVE"))
self.linearObject = self.linearObjectList.getLinearObjectAt(partAt)
self.firstPt = self.linearObject.getMiddlePt()
self.startPt = self.linearObject.getStartPt()
self.endPt = self.linearObject.getEndPt()
def canvasMoveEvent(self, event):
QadGetPoint.canvasMoveEvent(self, event)
self.__highlight.reset()
ok = False
# noti il punto iniziale e finale dell'arco si richiede il punto intermedio
if self.mode == Qad_gripLineToArcConvert_maptool_ModeEnum.START_END_PT_KNOWN_ASK_FOR_SECOND_PT:
if self.linearObject is None:
return
arc = QadArc()
if arc.fromStartSecondEndPts(self.startPt, self.tmpPoint, self.endPt) == False:
return
if qad_utils.ptNear(self.startPt, arc.getStartPt()):
self.linearObject.setArc(arc, False) # arco non inverso
else:
self.linearObject.setArc(arc, True) # arco inverso
ok = True
if ok:
pts = self.linearObjectList.asPolyline(self.tolerance2ApproxCurve)
if self.layer.geometryType() == QGis.Polygon:
geom = QgsGeometry.fromPolygon([pts])
else:
geom = QgsGeometry.fromPolyline(pts)
# trasformo la geometria nel crs del layer
self.__highlight.addGeometry(self.mapToLayerCoordinates(self.layer, geom), self.layer)
def activate(self):
QadGetPoint.activate(self)
self.__highlight.show()
def deactivate(self):
try: # necessario perché se si chiude QGIS parte questo evento nonostante non ci sia più l'oggetto maptool !
QadGetPoint.deactivate(self)
self.__highlight.hide()
except:
pass
def setMode(self, mode):
self.mode = mode
# noti il punto iniziale e finale dell'arco si richiede il punto intermedio
if self.mode == Qad_gripLineToArcConvert_maptool_ModeEnum.START_END_PT_KNOWN_ASK_FOR_SECOND_PT:
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.ELASTIC_LINE)
self.setStartPoint(self.firstPt)
# non si richiede niente
elif self.mode == Qad_pedit_maptool_ModeEnum.NONE:
self.setSelectionMode(QadGetPointSelectionModeEnum.POINT_SELECTION)
self.setDrawMode(QadGetPointDrawModeEnum.NONE)