725 lines
25 KiB
Python
725 lines
25 KiB
Python
from __future__ import annotations
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import itertools
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import os
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import uuid
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from math import isnan
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from numpy import errstate, floor, log10
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from pyqtgraph import GraphicsObject, getConfigOption, mkColor
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from nmreval.utils.text import convert
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from ..lib.pg_objects import LegendItemBlock, RegionItem
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from ..Qt import QtCore, QtWidgets, QtGui
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from .._py.graph import Ui_GraphWindow
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from ..lib import make_action_icons
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from ..lib.configurations import GraceMsgBox
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class QGraphWindow(QtWidgets.QGraphicsView, Ui_GraphWindow):
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mousePositionChanged = QtCore.pyqtSignal(float, float)
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mouseDoubleClicked = QtCore.pyqtSignal()
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positionClicked = QtCore.pyqtSignal(tuple, bool)
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aboutToClose = QtCore.pyqtSignal(str)
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counter = itertools.count()
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def __init__(self, parent=None):
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super().__init__(parent=parent)
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self.setupUi(self)
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self._bgcolor = mkColor(getConfigOption('background'))
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self._fgcolor = mkColor(getConfigOption('foreground'))
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self._prev_colors = mkColor('k'), mkColor('w')
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self._init_gui()
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make_action_icons(self)
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self.id = str(uuid.uuid4())
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self.sets = []
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self.active = []
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self.real_plots = {}
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self.imag_plots = {}
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self.error_plots = {}
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self._special_needs = []
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self._external_items = []
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self.closable = True
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self.log = [False, False]
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self.scene = self.plotItem.scene()
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self.scene.sigMouseMoved.connect(self.move_mouse)
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self.checkBox.stateChanged.connect(lambda x: self.legend.setVisible(x == QtCore.Qt.Checked))
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self.label_button.toggled.connect(lambda x: self.label_widget.setVisible(x))
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self.limit_button.toggled.connect(lambda x: self.limit_widget.setVisible(x))
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self.gridbutton.toggled.connect(lambda x: self.graphic.showGrid(x=x, y=x))
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self.logx_button.toggled.connect(lambda x: self.set_logmode(xmode=x))
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self.logy_button.toggled.connect(lambda x: self.set_logmode(ymode=x))
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self.graphic.plotItem.vb.sigRangeChanged.connect(self.update_limits)
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self.listWidget.itemChanged.connect(self.show_legend)
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# reconnect "Export..." in context menu to our function
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self.scene.contextMenu[0].disconnect()
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self.scene.contextMenu[0].triggered.connect(self.export_dialog)
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def _init_gui(self):
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self.setWindowTitle('Graph ' + str(next(QGraphWindow.counter)))
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self.label_widget.hide()
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self.limit_widget.hide()
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self.listWidget.hide()
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self.checkBox.hide()
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self.plotItem = self.graphic.plotItem
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for orient in ['top', 'bottom', 'left', 'right']:
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self.plotItem.showAxis(orient)
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ax = self.plotItem.getAxis(orient)
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ax.enableAutoSIPrefix(False)
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if orient == 'top':
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ax.setStyle(showValues=False)
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ax.setHeight(10)
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elif orient == 'right':
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ax.setStyle(showValues=False)
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ax.setWidth(10)
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self.legend = LegendItemBlock(offset=(20, 20))
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self.legend.setParentItem(self.plotItem.vb)
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self.plotItem.legend = self.legend
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self.legend.setVisible(True)
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self.plotItem.setMenuEnabled(False, True)
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self.plotItem.ctrl.logXCheck.blockSignals(True)
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self.plotItem.ctrl.logYCheck.blockSignals(True)
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for lineedit in [self.xmin_lineedit, self.xmax_lineedit, self.ymin_lineedit, self.ymax_lineedit]:
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lineedit.setValidator(QtGui.QDoubleValidator())
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def __contains__(self, item: str):
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return item in self.sets
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def __iter__(self):
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return iter(self.active)
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def __len__(self):
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return len(self.active)
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def curves(self) -> tuple:
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for a in self.active:
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if self.real_button.isChecked():
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if self.error_plots[a] is not None:
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yield self.real_plots[a], self.error_plots[a]
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else:
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yield self.real_plots[a],
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if self.imag_button.isChecked() and self.imag_plots[a] is not None:
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yield self.imag_plots[a],
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@property
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def title(self):
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return self.windowTitle()
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@title.setter
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def title(self, value):
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self.setWindowTitle(str(value))
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@property
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def ranges(self) -> tuple:
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r = self.plotItem.getViewBox().viewRange()
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for i in [0, 1]:
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if self.log[i]:
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r[i] = tuple([10**x for x in r[i]])
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else:
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r[i] = tuple(r[i])
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return tuple(r)
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def add(self, name: str | list, plots: list):
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if isinstance(name, str):
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name = [name]
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plots = [plots]
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for (real_plot, imag_plot, err_plot), n in zip(plots, name):
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toplevel = len(self.sets)
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self.sets.append(n)
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if real_plot:
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real_plot.setZValue(2*toplevel+1)
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if imag_plot:
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imag_plot.setZValue(2*toplevel+1)
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if err_plot:
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err_plot.setZValue(2*toplevel)
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self.real_plots[n] = real_plot
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self.imag_plots[n] = imag_plot
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self.error_plots[n] = err_plot
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list_item = QtWidgets.QListWidgetItem(real_plot.opts.get('name', ''))
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list_item.setData(QtCore.Qt.UserRole, n)
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list_item.setFlags(QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsUserCheckable)
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list_item.setCheckState(QtCore.Qt.Checked)
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self.listWidget.addItem(list_item)
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self.show_item(name)
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def remove(self, name: str | list):
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if isinstance(name, str):
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name = [name]
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for n in name:
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self.sets.remove(n)
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for plot in [self.real_plots, self.imag_plots, self.error_plots]:
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self.graphic.removeItem(plot[n])
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if n in self.active:
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self.active.remove(n)
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# remove from label list
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self.listWidget.blockSignals(True)
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for i in range(self.listWidget.count()-1, 0, -1):
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item = self.listWidget.item(i)
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if item.data(QtCore.Qt.UserRole) in name:
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self.listWidget.takeItem(i)
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self.listWidget.blockSignals(False)
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self._update_zorder()
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self.show_legend()
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def move_sets(self, sets: list, position: int):
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move_plots = []
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move_items = []
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self.listWidget.blockSignals(True)
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for s in sets:
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idx = self.sets.index(s)
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move_plots.append(self.sets.pop(idx))
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move_items.append(self.listWidget.takeItem(idx))
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if position == -1:
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self.sets.extend(move_plots)
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for it in move_items:
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self.listWidget.addItem(it)
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else:
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self.sets = self.sets[:position] + move_plots + self.sets[position:]
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for it in move_items[::-1]:
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self.listWidget.insertItem(position, it)
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self.listWidget.blockSignals(False)
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self._update_zorder()
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def show_item(self, idlist: list):
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if len(self.sets) == 0:
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return
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for a in idlist:
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if a not in self.active:
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self.active.append(a)
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for (bttn, plot_dic) in [
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(self.real_button, self.real_plots),
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(self.imag_button, self.imag_plots),
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(self.error_button, self.error_plots),
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]:
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if bttn.isChecked():
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item = plot_dic[a]
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if (item is not None) and (item not in self.graphic.items()):
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self.graphic.addItem(item)
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self.show_legend()
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def hide_item(self, idlist: list):
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if len(self.sets) == 0:
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return
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for r in idlist:
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if r in self.active:
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self.active.remove(r)
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for plt in [self.real_plots, self.imag_plots, self.error_plots]:
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item = plt[r]
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if item in self.graphic.items():
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self.graphic.removeItem(item)
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@QtCore.pyqtSlot(bool, name='on_imag_button_toggled')
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@QtCore.pyqtSlot(bool, name='on_real_button_toggled')
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def set_imag_visible(self, visible: bool):
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if self.sender() == self.real_button:
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plots = self.real_plots
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if self.error_button.isChecked() and not visible:
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self.error_button.setChecked(False)
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else:
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plots = self.imag_plots
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if visible:
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func = self.graphic.addItem
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else:
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func = self.graphic.removeItem
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for a in self.active:
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item = plots[a]
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if item is not None:
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func(item)
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self.show_legend()
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@QtCore.pyqtSlot(bool, name='on_error_button_toggled')
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def show_errorbar(self, visible: bool):
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if visible and not self.real_button.isChecked():
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# no errorbars without points
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self.error_button.blockSignals(True)
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self.error_button.setChecked(False)
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self.error_button.blockSignals(False)
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return
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if visible:
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for a in self.active:
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item = self.error_plots[a]
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if (item is not None) and (item not in self.graphic.items()):
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self.graphic.addItem(item)
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else:
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for a in self.active:
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item = self.error_plots[a]
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if (item is not None) and (item in self.graphic.items()):
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self.graphic.removeItem(item)
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def add_external(self, item):
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if isinstance(item, RegionItem) and item.first:
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# Give regions nice values on first addition to a graph
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x, _ = self.ranges
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if item.mode == 'mid':
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onset = item.getRegion()[0]
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if self.log[0]:
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delta = log10(x[1]/x[0])/20
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span = (onset / 10**delta , onset * 10**delta)
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else:
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delta = x[1]-x[0]
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span = (onset-delta/20, onset + delta/20)
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elif item.mode == 'half':
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span = (0.75*x[0]+0.25*x[1], 0.25*x[0]+0.75*x[1])
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else:
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span = item.getRegion()
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item.setRegion(span)
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item.first = False
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if item in self.graphic.items():
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return False
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if not hasattr(item, 'setLogMode'):
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self._special_needs.append(item)
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self._external_items.append(item)
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self.graphic.addItem(item)
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item.setZValue(1000)
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return True
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@QtCore.pyqtSlot(GraphicsObject)
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def remove_external(self, item):
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if item in self._external_items:
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self._external_items.remove(item)
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if item in self._special_needs:
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self._special_needs.remove(item)
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if item not in self.graphic.items():
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return False
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self.graphic.removeItem(item)
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return True
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def closeEvent(self, evt: QtGui.QCloseEvent):
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if not self.closable:
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evt.ignore()
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return
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res = QtWidgets.QMessageBox.Yes
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if len(self.sets) != 0:
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res = QtWidgets.QMessageBox.question(self, 'Plot not empty', 'Graph is not empty. Deleting with all data?',
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QtWidgets.QMessageBox.Yes, QtWidgets.QMessageBox.No)
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if res == QtWidgets.QMessageBox.Yes:
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self.aboutToClose.emit(self.id)
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evt.accept()
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else:
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evt.ignore()
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def move_mouse(self, evt):
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vb = self.plotItem.getViewBox()
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if self.plotItem.sceneBoundingRect().contains(evt):
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pos = vb.mapSceneToView(evt)
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if self.log[0]:
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try:
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_x = 10**(pos.x())
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except OverflowError:
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_x = pos.x()
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else:
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_x = pos.x()
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if self.log[1]:
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try:
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_y = 10**(pos.y())
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except OverflowError:
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_y = pos.y()
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else:
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_y = pos.y()
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self.mousePositionChanged.emit(_x, _y)
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@QtCore.pyqtSlot(name='on_title_lineedit_returnPressed')
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@QtCore.pyqtSlot(name='on_xaxis_linedit_returnPressed')
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@QtCore.pyqtSlot(name='on_yaxis_linedit_returnPressed')
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def labels_changed(self):
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label = {self.title_lineedit: 'title', self.xaxis_linedit: 'x', self.yaxis_linedit: 'y'}[self.sender()]
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self.set_label(**{label: self.sender().text()})
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def set_label(self, x=None, y=None, title=None):
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if title is not None:
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self.plotItem.setTitle(convert(title, old='tex', new='html'), **{'size': '10pt', 'color': self._fgcolor})
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if x is not None:
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self.plotItem.setLabel('bottom', convert(x, old='tex', new='html'),
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**{'font-size': '10pt', 'color': self._fgcolor.name()})
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if y is not None:
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self.plotItem.setLabel('left', convert(y, old='tex', new='html'),
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**{'font-size': '10pt', 'color': self._fgcolor.name()})
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def set_logmode(self, xmode: bool = None, ymode: bool = None):
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r = self.ranges
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if xmode is None:
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xmode = self.plotItem.ctrl.logXCheck.isChecked()
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else:
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self.plotItem.ctrl.logXCheck.setCheckState(xmode)
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if ymode is None:
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ymode = self.plotItem.ctrl.logYCheck.isChecked()
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else:
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self.plotItem.ctrl.logYCheck.setCheckState(ymode)
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self.log = [xmode, ymode]
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for item in self._special_needs:
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item.logmode[0] = self.log[:]
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self.plotItem.updateLogMode()
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self.set_range(x=r[0], y=r[1])
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def enable_picking(self, enabled: bool):
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if enabled:
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self.scene.sigMouseClicked.connect(self.position_picked)
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else:
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try:
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self.scene.sigMouseClicked.disconnect()
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except TypeError:
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pass
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def position_picked(self, evt):
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vb = self.graphic.plotItem.vb
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if self.graphic.plotItem.sceneBoundingRect().contains(evt.scenePos()) and evt.button() == 1:
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pos = vb.mapSceneToView(evt.scenePos())
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_x, _y = pos.x(), pos.y()
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if self.log[0]:
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_x = 10**_x
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if self.log[1]:
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_y = 10**_y
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self.positionClicked.emit((_x, _y), evt.double())
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@QtCore.pyqtSlot(name='on_apply_button_clicked')
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def set_range(self, x: tuple = None, y: tuple = None):
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if x is None:
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x = float(self.xmin_lineedit.text()), float(self.xmax_lineedit.text())
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x = min(x), max(x)
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if y is None:
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y = float(self.ymin_lineedit.text()), float(self.ymax_lineedit.text())
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y = min(y), max(y)
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for log, xy, func in zip(self.log, (x, y), (self.graphic.setXRange, self.graphic.setYRange)):
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if log:
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with errstate(all='ignore'):
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xy = [log10(val) for val in xy]
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if isnan(xy[1]):
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xy = [-1, 1]
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elif isnan(xy[0]):
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xy[0] = xy[1]-4
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func(xy[0], xy[1], padding=0)
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@QtCore.pyqtSlot(object)
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def update_limits(self, _):
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r = self.ranges
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self.xmin_lineedit.setText('%.5g' % r[0][0])
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self.xmax_lineedit.setText('%.5g' % r[0][1])
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self.ymin_lineedit.setText('%.5g' % r[1][0])
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self.ymax_lineedit.setText('%.5g' % r[1][1])
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def _update_zorder(self):
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for i, sid in enumerate(self.sets):
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plt = self.real_plots[sid]
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if plt.zValue() != 2*i+1:
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plt.setZValue(2*i+1)
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if self.imag_plots[sid] is not None:
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self.imag_plots[sid].setZValue(2*i+1)
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if self.error_plots[sid] is not None:
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self.error_plots[sid].setZValue(2*i)
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self.show_legend()
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@QtCore.pyqtSlot(bool, name='on_legend_button_toggled')
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def show_legend_item_list(self, visible: bool):
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self.listWidget.setVisible(visible)
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self.checkBox.setVisible(visible)
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def update_legend(self, sid, name):
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self.listWidget.blockSignals(True)
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for i in range(self.listWidget.count()):
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item = self.listWidget.item(i)
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if item.data(QtCore.Qt.UserRole) == sid:
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item.setText(convert(name, old='tex', new='html'))
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self.listWidget.blockSignals(False)
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self.show_legend()
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def show_legend(self):
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if not self.legend.isVisible():
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return
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self.legend.clear()
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for i, sid in enumerate(self.sets):
|
|
item = self.real_plots[sid]
|
|
other_item = self.imag_plots[sid]
|
|
# should legend be visible? is either real part or imaginary part shown?
|
|
if self.listWidget.item(i).checkState():
|
|
if item in self.graphic.items():
|
|
self.legend.addItem(item, convert(item.opts.get('name', ''), old='tex', new='html'))
|
|
elif other_item in self.graphic.items():
|
|
self.legend.addItem(other_item, convert(other_item.opts.get('name', ''), old='tex', new='html'))
|
|
|
|
def export_dialog(self):
|
|
filters = 'All files (*.*);;AGR (*.agr);;SVG (*.svg);;PDF (*.pdf)'
|
|
for imgformat in QtGui.QImageWriter.supportedImageFormats():
|
|
str_format = imgformat.data().decode('utf-8')
|
|
filters += ';;' + str_format.upper() + ' (*.' + str_format + ')'
|
|
|
|
outfile, _ = QtWidgets.QFileDialog.getSaveFileName(self, caption='Export graphic', filter=filters,
|
|
options=QtWidgets.QFileDialog.DontConfirmOverwrite)
|
|
if outfile:
|
|
self.export(outfile)
|
|
|
|
def export(self, outfile: str):
|
|
_, suffix = os.path.splitext(outfile)
|
|
if suffix == '':
|
|
QtWidgets.QMessageBox.warning(self, 'No file extension',
|
|
'No file extension found, graphic was not saved.')
|
|
return
|
|
|
|
if suffix == '.agr':
|
|
res = 0
|
|
if os.path.exists(outfile):
|
|
res = GraceMsgBox(outfile, parent=self).exec()
|
|
if res == -1:
|
|
return
|
|
|
|
opts = self.export_graphics()
|
|
|
|
from ..io.exporters import GraceExporter
|
|
if res == 0:
|
|
mode = 'w'
|
|
elif res == 1:
|
|
mode = 'a'
|
|
else:
|
|
mode = res-2
|
|
|
|
GraceExporter(opts).export(outfile, mode=mode)
|
|
|
|
else:
|
|
if os.path.exists(outfile):
|
|
if QtWidgets.QMessageBox.warning(self, 'Export graphic',
|
|
f'{os.path.split(outfile)[1]} already exists.\n'
|
|
f'Do you REALLY want to replace it?',
|
|
QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No,
|
|
QtWidgets.QMessageBox.No) == QtWidgets.QMessageBox.No:
|
|
return
|
|
|
|
bg_color = self._bgcolor
|
|
fg_color = self._fgcolor
|
|
self.set_color(foreground='k', background='w')
|
|
|
|
if suffix == '.pdf':
|
|
from ..io.exporters import PDFPrintExporter
|
|
PDFPrintExporter(self.graphic).export(outfile)
|
|
|
|
elif suffix == '.svg':
|
|
from pyqtgraph.exporters import SVGExporter
|
|
SVGExporter(self.scene).export(outfile)
|
|
|
|
else:
|
|
from pyqtgraph.exporters import ImageExporter
|
|
|
|
ImageExporter(self.scene).export(outfile)
|
|
|
|
self.set_color(foreground=fg_color, background=bg_color)
|
|
|
|
def export_graphics(self) -> dict:
|
|
dic = self.get_state()
|
|
dic['items'] = []
|
|
|
|
in_legend = []
|
|
|
|
for item in self.curves():
|
|
plot_item = item[0]
|
|
legend_shown = False
|
|
for sample, _ in self.legend.items:
|
|
if sample.item is plot_item:
|
|
legend_shown = True
|
|
break
|
|
in_legend.append(legend_shown)
|
|
item_dic = plot_item.get_data_opts()
|
|
if len(item) == 2:
|
|
# plot can show errorbars
|
|
item_dic['yerr'] = item[1].opts['topData']
|
|
|
|
if item_dic:
|
|
dic['items'].append(item_dic)
|
|
|
|
for item in self._external_items:
|
|
dic['items'].append(item.get_data_opts())
|
|
in_legend.append(False)
|
|
|
|
dic['in_legend'] = in_legend
|
|
|
|
return dic
|
|
|
|
def get_state(self) -> dict:
|
|
dic = {
|
|
'id': self.id,
|
|
'limits': (self.ranges[0], self.ranges[1]),
|
|
'ticks': (),
|
|
'labels': (self.plotItem.getAxis('bottom').labelText,
|
|
self.plotItem.getAxis('left').labelText,
|
|
self.plotItem.titleLabel.text,
|
|
self.title),
|
|
'log': self.log,
|
|
'grid': self.gridbutton.isChecked(),
|
|
'legend': self.legend.isVisible(),
|
|
'plots': (self.real_button.isChecked(), self.imag_button.isChecked(), self.error_button.isChecked()),
|
|
'children': self.sets,
|
|
'active': self.active,
|
|
}
|
|
|
|
in_legend = []
|
|
for i in range(self.listWidget.count()):
|
|
in_legend.append(bool(self.listWidget.item(i).checkState()))
|
|
dic['in_legend'] = in_legend
|
|
|
|
# bottomLeft gives top left corner
|
|
l_topleft = self.plotItem.vb.itemBoundingRect(self.legend).bottomLeft()
|
|
legend_origin = [l_topleft.x(), l_topleft.y()]
|
|
for i in [0, 1]:
|
|
if self.log[i]:
|
|
legend_origin[i] = 10**legend_origin[i]
|
|
dic['legend_pos'] = legend_origin
|
|
|
|
for i, ax in enumerate(['bottom', 'left']):
|
|
if self.log[i]:
|
|
major = 10
|
|
minor = 9
|
|
else:
|
|
vmin, vmax = dic['limits'][i][0], dic['limits'][i][1]
|
|
dist = vmax - vmin
|
|
scale = 10**floor(log10(abs(dist)))
|
|
steps = [0.1, 0.2, 0.25, 0.5, 1., 2., 2.5, 5., 10., 20., 50., 100.]
|
|
for step_i in steps:
|
|
if dist / step_i / scale <= 10:
|
|
break
|
|
major = step_i * scale
|
|
minor = 1
|
|
|
|
dic['ticks'] += (major, minor),
|
|
|
|
return dic
|
|
|
|
@staticmethod
|
|
def set_state(state):
|
|
graph = QGraphWindow()
|
|
graph.id = state.get('id', graph.id)
|
|
|
|
graph.plotItem.setLabel('bottom', state['labels'][0], **{'font-size': '10pt', 'color': graph._fgcolor.name()})
|
|
graph.plotItem.setLabel('left', state['labels'][1], **{'font-size': '10pt', 'color': graph._fgcolor.name()})
|
|
graph.plotItem.setTitle(state['labels'][2], **{'size': '10pt', 'color': graph._fgcolor.name()})
|
|
graph.setWindowTitle(state['labels'][3])
|
|
|
|
graph.graphic.showGrid(x=state['grid'], y=state['grid'])
|
|
|
|
graph.checkBox.setCheckState(QtCore.Qt.Checked if state['legend'] else QtCore.Qt.Unchecked)
|
|
|
|
graph.real_button.setChecked(state['plots'][0])
|
|
graph.imag_button.setChecked(state['plots'][1])
|
|
graph.error_button.setChecked(state['plots'][2])
|
|
|
|
graph.set_range(x=state['limits'][0], y=state['limits'][1])
|
|
graph.logx_button.setChecked(state['log'][0])
|
|
graph.logy_button.setChecked(state['log'][1])
|
|
|
|
return graph
|
|
|
|
def set_color(self, foreground=None, background=None):
|
|
if background is not None:
|
|
self._bgcolor = mkColor(background)
|
|
self.graphic.setBackground(self._bgcolor)
|
|
self.legend.setBrush(self._bgcolor)
|
|
|
|
if foreground is not None:
|
|
self._fgcolor = mkColor(foreground)
|
|
|
|
for ax in ['left', 'bottom']:
|
|
pen = self.plotItem.getAxis(ax).pen()
|
|
pen.setColor(self._fgcolor)
|
|
|
|
self.plotItem.getAxis(ax).setPen(pen)
|
|
self.plotItem.getAxis(ax).setTextPen(pen)
|
|
|
|
self.legend.setLabelTextColor(self._fgcolor)
|
|
if self.legend.isVisible():
|
|
self.show_legend()
|
|
|
|
title = self.plotItem.titleLabel.text
|
|
if title is not None:
|
|
self.plotItem.setTitle(title, **{'size': '10pt', 'color': self._fgcolor})
|
|
|
|
x = self.plotItem.getAxis('bottom').labelText
|
|
if x is not None:
|
|
self.plotItem.setLabel('bottom', x, **{'font-size': '10pt', 'color': self._fgcolor.name()})
|
|
|
|
y = self.plotItem.getAxis('left').labelText
|
|
if y is not None:
|
|
self.plotItem.setLabel('left', y, **{'font-size': '10pt', 'color': self._fgcolor.name()})
|
|
|
|
@QtCore.pyqtSlot(bool, name='on_bwbutton_toggled')
|
|
def change_background(self, _):
|
|
temp = self._fgcolor, self._bgcolor
|
|
self.set_color(foreground=self._prev_colors[0], background=self._prev_colors[1])
|
|
self._prev_colors = temp
|