91 lines
3.4 KiB
Python
91 lines
3.4 KiB
Python
from PyQt5.QtCore import QSettings, QUrl, pyqtSignal, Qt, QVariant
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from PyQt5.QtWidgets import QMessageBox, QWidget, QHBoxLayout
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from PyQt5.QtGui import QColor, QDragEnterEvent, QDropEvent
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from qgis.core import QgsGeometry, QgsRectangle
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from qgis.gui import QgsMapCanvas,QgsRubberBand,QgsMapToolEmitPoint
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from qgis.core import QgsRectangle,QgsPoint
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from rscder.utils.project import BasicLayer, PairLayer, Project
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class RectangleMapTool(QgsMapToolEmitPoint):
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def __init__(self, canvas,color,witdth):
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self.canvas = canvas
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QgsMapToolEmitPoint.__init__(self, self.canvas)
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self.rubberBand = QgsRubberBand(self.canvas, True)
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self.rubberBand.setColor(color)
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self.rubberBand.setWidth(witdth)
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self.reset()
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self.Extent=0
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def reset(self):
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self.startPoint = self.endPoint = None
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self.isEmittingPoint = False
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self.rubberBand.reset(True)
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def draw_extent(self,extent):
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point1 = QgsPoint(extent.xMinimum(), extent.yMinimum())
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point2 = QgsPoint(extent.xMaximum(), extent.yMinimum())
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point3 = QgsPoint(extent.xMaximum(), extent.yMaximum())
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point4 = QgsPoint(extent.xMinimum(), extent.yMaximum())
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points=[point1,point2,point3,point4,point1]
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self.rubberBand.setToGeometry(QgsGeometry.fromPolyline(points), None)
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self.rubberBand.show()
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class eagleEye(QgsMapCanvas):
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extent=pyqtSignal(object)
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def __init__(self, parent):
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super().__init__(parent)
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self.layers = []
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self.grid_layers = []
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self.is_main = False
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self.setCanvasColor(Qt.white)
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self.enableAntiAliasing(True)
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self.setAcceptDrops(False)
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self.Extent=0
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self.changing=False
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self.rubber=RectangleMapTool(self,Qt.yellow,1)
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def update_layer(self):
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layers = Project().layers
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layer_list_1 = []
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for layer in layers.values():
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if layer.enable:
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for sub_layer in layer.layers:
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if sub_layer.enable:
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if sub_layer.view_mode == BasicLayer.LEFT_VIEW:
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layer_list_1.append(sub_layer.layer)
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elif sub_layer.view_mode == BasicLayer.BOATH_VIEW:
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layer_list_1.append(sub_layer.layer)
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self.setLayers(layer_list_1)
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if len(layer_list_1) > 0:
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self.zoomToFeatureExtent(layer_list_1[0].extent())
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def zoom(self,layer):
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self.zoomToFeatureExtent(layer.extent())
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def draw_extent(self,extent):
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self.Extent=extent
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self.rubber.draw_extent(self.Extent)
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def reset_extent(self,center):
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if not self.Extent:
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return
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center=self.rubber.toMapCoordinates(center)
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x=(self.Extent.xMaximum()-self.Extent.xMinimum())//2
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y=(self.Extent.yMaximum()-self.Extent.yMinimum())//2
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self.Extent=QgsRectangle(center.x()-x,center.y()-y,center.x()+x,center.y()+y)
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self.draw_extent(self.Extent)
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def mousePressEvent(self,e):
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if not self.Extent:
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return
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self.changing=True
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self.reset_extent(e.pos())
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self.extent.emit(self.Extent)
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def mouseMoveEvent(self,e):
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if self.changing:
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self.reset_extent(e.pos())
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self.extent.emit(self.Extent)
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def mouseReleaseEvent(self,e):
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self.changing=False
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def wheelEvent(self,e):
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pass |