Plotter.py @ bb57068

ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalc

Last change on this file since bb57068 was bb57068, checked in by Piotr Rozyczko <rozyczko@…>, 6 years ago
Corrected plot scale for residuals
Property mode set to `100644`
File size: 25.2 KB

Rev	Line
[4992ff2]	1	from PyQt5 import QtCore
	2	from PyQt5 import QtGui
	3	from PyQt5 import QtWidgets
	4
[aadf0af1]	5	import functools
	6	import copy
[8cb6cd6]	7	import matplotlib.pyplot as plt
[9290b1a]	8	from matplotlib.font_manager import FontProperties
[dc5ef15]	9	from sas.qtgui.Plotting.PlotterData import Data1D
[83eb5208]	10	from sas.qtgui.Plotting.PlotterBase import PlotterBase
	11	from sas.qtgui.Plotting.AddText import AddText
	12	from sas.qtgui.Plotting.SetGraphRange import SetGraphRange
	13	from sas.qtgui.Plotting.LinearFit import LinearFit
	14	from sas.qtgui.Plotting.PlotProperties import PlotProperties
[bb57068]	15	from sas.qtgui.Plotting.ScaleProperties import ScaleProperties
[dc5ef15]	16
	17	import sas.qtgui.Utilities.GuiUtils as GuiUtils
[83eb5208]	18	import sas.qtgui.Plotting.PlotUtilities as PlotUtilities
[8cb6cd6]	19
[416fa8f]	20	class PlotterWidget(PlotterBase):
[c4e5400]	21	"""
	22	1D Plot widget for use with a QDialog
[fecfe28]	23	"""
[416fa8f]	24	def __init__(self, parent=None, manager=None, quickplot=False):
	25	super(PlotterWidget, self).__init__(parent, manager=manager, quickplot=quickplot)
[570a58f9]	26
[27313b7]	27	self.parent = parent
[8cb6cd6]	28
[aadf0af1]	29	# Dictionary of {plot_id:Data1d}
	30	self.plot_dict = {}
	31
[fed94a2]	32	# Window for text add
	33	self.addText = AddText(self)
[aadf0af1]	34
[fed94a2]	35	# Log-ness of the axes
[570a58f9]	36	self.xLogLabel = "log10(x)"
	37	self.yLogLabel = "log10(y)"
	38
	39	# Data container for the linear fit
[fed94a2]	40	self.fit_result = Data1D(x=[], y=[], dy=None)
	41	self.fit_result.symbol = 13
	42	self.fit_result.name = "Fit"
[570a58f9]	43
[31c5b58]	44	@property
	45	def data(self):
	46	return self._data
	47
	48	@data.setter
	49	def data(self, value):
[8cb6cd6]	50	""" data setter """
[31c5b58]	51	self._data = value
[cb4d219]	52	if value._xunit:
	53	self.xLabel = "%s(%s)"%(value._xaxis, value._xunit)
	54	else:
	55	self.xLabel = "%s"%(value._xaxis)
	56	if value._yunit:
	57	self.yLabel = "%s(%s)"%(value._yaxis, value._yunit)
	58	else:
	59	self.yLabel = "%s"%(value._yaxis)
	60
	61	if value.scale == 'linear' or value.isSesans:
[749b715]	62	self.xscale = 'linear'
	63	self.yscale = 'linear'
[aadf0af1]	64	self.title(title=value.name)
[8cb6cd6]	65
[f0bb711]	66	def plot(self, data=None, color=None, marker=None, hide_error=False):
[8cb6cd6]	67	"""
[aadf0af1]	68	Add a new plot of self._data to the chart.
[8cb6cd6]	69	"""
[9290b1a]	70	# Data1D
	71	if isinstance(data, Data1D):
	72	self.data = data
	73	assert(self._data)
	74
[87cc73a]	75	is_fit = (self.data.id=="fit")
[570a58f9]	76
[bb57068]	77	# make sure we have some function to operate on
	78	if self.data.xtransform is None:
	79	self.data.xtransform = 'log10(x)'
	80	if self.data.ytransform is None:
	81	self.data.ytransform = 'log10(y)'
	82
[f182f93]	83	# Transform data if required.
[bb57068]	84	if self.data.xtransform is not None or self.data.ytransform is not None:
	85	_, _, xscale, yscale = GuiUtils.xyTransform(self.data, self.data.xtransform, self.data.ytransform)
	86	if xscale != 'log':
	87	self.xscale = xscale
	88	if yscale != 'log':
	89	self.yscale = yscale
	90
	91	# Redefine the Scale properties dialog
	92	self.properties = ScaleProperties(self,
	93	init_scale_x=self.data.xtransform,
	94	init_scale_y=self.data.ytransform)
[f182f93]	95
[87cc73a]	96	# Shortcuts
[ef01be4]	97	ax = self.ax
[87cc73a]	98	x = self._data.view.x
	99	y = self._data.view.y
	100
	101	# Marker symbol. Passed marker is one of matplotlib.markers characters
	102	# Alternatively, picked up from Data1D as an int index of PlotUtilities.SHAPES dict
	103	if marker is None:
	104	marker = self.data.symbol
[6fd4e36]	105	# Try name first
	106	try:
[cb4d219]	107	marker = dict(PlotUtilities.SHAPES)[marker]
[6fd4e36]	108	except KeyError:
[8f83719f]	109	marker = list(PlotUtilities.SHAPES.values())[marker]
[87cc73a]	110
[6fd4e36]	111	assert marker is not None
[87cc73a]	112	# Plot name
[b789967]	113	if self.data.title:
	114	self.title(title=self.data.title)
	115	else:
	116	self.title(title=self.data.name)
[87cc73a]	117
	118	# Error marker toggle
	119	if hide_error is None:
	120	hide_error = self.data.hide_error
	121
	122	# Plot color
	123	if color is None:
	124	color = self.data.custom_color
	125
	126	color = PlotUtilities.getValidColor(color)
	127
	128	markersize = self._data.markersize
	129
[239214f]	130	# Draw non-standard markers
	131	l_width = markersize * 0.4
	132	if marker == '-' or marker == '--':
	133	line = self.ax.plot(x, y, color=color, lw=l_width, marker='',
	134	linestyle=marker, label=self._title, zorder=10)[0]
	135
	136	elif marker == 'vline':
	137	y_min = min(y)*9.0/10.0 if min(y) < 0 else 0.0
	138	line = self.ax.vlines(x=x, ymin=y_min, ymax=y, color=color,
	139	linestyle='-', label=self._title, lw=l_width, zorder=1)
	140
	141	elif marker == 'step':
	142	line = self.ax.step(x, y, color=color, marker='', linestyle='-',
	143	label=self._title, lw=l_width, zorder=1)[0]
[8cb6cd6]	144
[c4e5400]	145	else:
[87cc73a]	146	# plot data with/without errorbars
	147	if hide_error:
	148	line = ax.plot(x, y, marker=marker, color=color, markersize=markersize,
	149	linestyle='', label=self._title, picker=True)
	150	else:
	151	line = ax.errorbar(x, y,
	152	yerr=self._data.view.dy, xerr=None,
	153	capsize=2, linestyle='',
	154	barsabove=False,
	155	color=color,
	156	marker=marker,
	157	markersize=markersize,
	158	lolims=False, uplims=False,
	159	xlolims=False, xuplims=False,
	160	label=self._title,
	161	picker=True)
[8cb6cd6]	162
[aadf0af1]	163	# Update the list of data sets (plots) in chart
	164	self.plot_dict[self._data.id] = self.data
	165
[8cb6cd6]	166	# Now add the legend with some customizations.
[f0bb711]	167
	168	self.legend = ax.legend(loc='upper right', shadow=True)
	169	if self.legend:
	170	self.legend.set_picker(True)
[8cb6cd6]	171
[6d05e1d]	172	# Current labels for axes
[570a58f9]	173	if self.y_label and not is_fit:
	174	ax.set_ylabel(self.y_label)
	175	if self.x_label and not is_fit:
	176	ax.set_xlabel(self.x_label)
[6d05e1d]	177
	178	# Include scaling (log vs. linear)
	179	ax.set_xscale(self.xscale)
[3b7b218]	180	ax.set_yscale(self.yscale)
[8cb6cd6]	181
[257bd57]	182	# define the ranges
	183	self.setRange = SetGraphRange(parent=self,
	184	x_range=self.ax.get_xlim(), y_range=self.ax.get_ylim())
	185
[8cb6cd6]	186	# refresh canvas
[fbfc488]	187	self.canvas.draw_idle()
[8cb6cd6]	188
[aadf0af1]	189	def createContextMenu(self):
[c4e5400]	190	"""
	191	Define common context menu and associated actions for the MPL widget
	192	"""
	193	self.defaultContextMenu()
	194
[aadf0af1]	195	# Separate plots
	196	self.addPlotsToContextMenu()
	197
[27313b7]	198	# Additional menu items
	199	self.contextMenu.addSeparator()
	200	self.actionAddText = self.contextMenu.addAction("Add Text")
	201	self.actionRemoveText = self.contextMenu.addAction("Remove Text")
	202	self.contextMenu.addSeparator()
	203	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	204	self.contextMenu.addSeparator()
	205	self.actionSetGraphRange = self.contextMenu.addAction("Set Graph Range")
	206	self.actionResetGraphRange =\
	207	self.contextMenu.addAction("Reset Graph Range")
	208	# Add the title change for dialogs
[aadf0af1]	209	#if self.parent:
	210	self.contextMenu.addSeparator()
	211	self.actionWindowTitle = self.contextMenu.addAction("Window Title")
[27313b7]	212
	213	# Define the callbacks
	214	self.actionAddText.triggered.connect(self.onAddText)
	215	self.actionRemoveText.triggered.connect(self.onRemoveText)
	216	self.actionChangeScale.triggered.connect(self.onScaleChange)
	217	self.actionSetGraphRange.triggered.connect(self.onSetGraphRange)
	218	self.actionResetGraphRange.triggered.connect(self.onResetGraphRange)
	219	self.actionWindowTitle.triggered.connect(self.onWindowsTitle)
[c4e5400]	220
[aadf0af1]	221	def addPlotsToContextMenu(self):
	222	"""
	223	Adds operations on all plotted sets of data to the context menu
	224	"""
[b3e8629]	225	for id in list(self.plot_dict.keys()):
[aadf0af1]	226	plot = self.plot_dict[id]
[b789967]	227
	228	name = plot.name if plot.name else plot.title
[aadf0af1]	229	plot_menu = self.contextMenu.addMenu('&%s' % name)
	230
	231	self.actionDataInfo = plot_menu.addAction("&DataInfo")
	232	self.actionDataInfo.triggered.connect(
	233	functools.partial(self.onDataInfo, plot))
	234
	235	self.actionSavePointsAsFile = plot_menu.addAction("&Save Points as a File")
	236	self.actionSavePointsAsFile.triggered.connect(
	237	functools.partial(self.onSavePoints, plot))
	238	plot_menu.addSeparator()
	239
	240	if plot.id != 'fit':
	241	self.actionLinearFit = plot_menu.addAction('&Linear Fit')
[570a58f9]	242	self.actionLinearFit.triggered.connect(
	243	functools.partial(self.onLinearFit, id))
[aadf0af1]	244	plot_menu.addSeparator()
	245
	246	self.actionRemovePlot = plot_menu.addAction("Remove")
	247	self.actionRemovePlot.triggered.connect(
	248	functools.partial(self.onRemovePlot, id))
	249
	250	if not plot.is_data:
	251	self.actionFreeze = plot_menu.addAction('&Freeze')
	252	self.actionFreeze.triggered.connect(
	253	functools.partial(self.onFreeze, id))
	254	plot_menu.addSeparator()
	255
	256	if plot.is_data:
	257	self.actionHideError = plot_menu.addAction("Hide Error Bar")
	258	if plot.dy is not None and plot.dy != []:
	259	if plot.hide_error:
	260	self.actionHideError.setText('Show Error Bar')
	261	else:
	262	self.actionHideError.setEnabled(False)
	263	self.actionHideError.triggered.connect(
	264	functools.partial(self.onToggleHideError, id))
	265	plot_menu.addSeparator()
	266
	267	self.actionModifyPlot = plot_menu.addAction('&Modify Plot Property')
[87cc73a]	268	self.actionModifyPlot.triggered.connect(
	269	functools.partial(self.onModifyPlot, id))
[aadf0af1]	270
	271	def createContextMenuQuick(self):
[6d05e1d]	272	"""
	273	Define context menu and associated actions for the quickplot MPL widget
	274	"""
[c4e5400]	275	# Default actions
	276	self.defaultContextMenu()
	277
	278	# Additional actions
[6d05e1d]	279	self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off")
	280	self.contextMenu.addSeparator()
	281	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	282
	283	# Define the callbacks
	284	self.actionToggleGrid.triggered.connect(self.onGridToggle)
	285	self.actionChangeScale.triggered.connect(self.onScaleChange)
	286
	287	def onScaleChange(self):
	288	"""
	289	Show a dialog allowing axes rescaling
	290	"""
[4992ff2]	291	if self.properties.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	292	self.xLogLabel, self.yLogLabel = self.properties.getValues()
[bb57068]	293	self.data.xtransform = self.xLogLabel
	294	self.data.ytransform = self.yLogLabel
[570a58f9]	295	self.xyTransform(self.xLogLabel, self.yLogLabel)
[6d05e1d]	296
[27313b7]	297	def onAddText(self):
	298	"""
	299	Show a dialog allowing adding custom text to the chart
	300	"""
[eb1a386]	301	if self.addText.exec_() != QtWidgets.QDialog.Accepted:
	302	return
	303
	304	# Retrieve the new text, its font and color
	305	extra_text = self.addText.text()
	306	extra_font = self.addText.font()
	307	extra_color = self.addText.color()
	308
	309	# Place the text on the screen at the click location
	310	pos_x = self.x_click
	311	pos_y = self.y_click
	312
	313	# Map QFont onto MPL font
	314	mpl_font = FontProperties()
	315	mpl_font.set_size(int(extra_font.pointSize()))
	316	mpl_font.set_family(str(extra_font.family()))
	317	mpl_font.set_weight(int(extra_font.weight()))
	318	# MPL style names
	319	styles = ['normal', 'italic', 'oblique']
	320	# QFont::Style maps directly onto the above
	321	try:
	322	mpl_font.set_style(styles[extra_font.style()])
	323	except:
	324	pass
	325
	326	if len(extra_text) > 0:
	327	new_text = self.ax.text(pos_x,
	328	pos_y,
	329	extra_text,
	330	color=extra_color,
	331	fontproperties=mpl_font)
	332
	333	# Update the list of annotations
	334	self.textList.append(new_text)
	335	self.canvas.draw()
[27313b7]	336
	337	def onRemoveText(self):
	338	"""
[9290b1a]	339	Remove the most recently added text
[27313b7]	340	"""
[d3ca363]	341	num_text = len(self.textList)
	342	if num_text < 1:
	343	return
	344	txt = self.textList[num_text - 1]
	345	text_remove = txt.get_text()
[eb1a386]	346	try:
	347	txt.remove()
	348	except ValueError:
	349	# Text got already deleted somehow
	350	pass
[d3ca363]	351	self.textList.remove(txt)
	352
	353	self.canvas.draw_idle()
[27313b7]	354
	355	def onSetGraphRange(self):
	356	"""
	357	Show a dialog allowing setting the chart ranges
	358	"""
[d3ca363]	359	# min and max of data
[4992ff2]	360	if self.setRange.exec_() == QtWidgets.QDialog.Accepted:
[257bd57]	361	x_range = self.setRange.xrange()
	362	y_range = self.setRange.yrange()
	363	if x_range is not None and y_range is not None:
	364	self.ax.set_xlim(x_range)
	365	self.ax.set_ylim(y_range)
	366	self.canvas.draw_idle()
[27313b7]	367
	368	def onResetGraphRange(self):
	369	"""
[d3ca363]	370	Resets the chart X and Y ranges to their original values
[27313b7]	371	"""
[d3ca363]	372	x_range = (self.data.x.min(), self.data.x.max())
	373	y_range = (self.data.y.min(), self.data.y.max())
[257bd57]	374	if x_range is not None and y_range is not None:
	375	self.ax.set_xlim(x_range)
	376	self.ax.set_ylim(y_range)
	377	self.canvas.draw_idle()
[27313b7]	378
[570a58f9]	379	def onLinearFit(self, id):
[aadf0af1]	380	"""
	381	Creates and displays a simple linear fit for the selected plot
	382	"""
[570a58f9]	383	selected_plot = self.plot_dict[id]
	384
	385	maxrange = (min(selected_plot.x), max(selected_plot.x))
	386	fitrange = self.ax.get_xlim()
	387
	388	fit_dialog = LinearFit(parent=self,
	389	data=selected_plot,
	390	max_range=maxrange,
	391	fit_range=fitrange,
	392	xlabel=self.xLogLabel,
	393	ylabel=self.yLogLabel)
[7969b9c]	394	fit_dialog.updatePlot.connect(self.onFitDisplay)
[4992ff2]	395	if fit_dialog.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	396	return
[aadf0af1]	397
[87cc73a]	398	def replacePlot(self, id, new_plot):
	399	"""
	400	Remove plot 'id' and add 'new_plot' to the chart.
	401	This effectlvely refreshes the chart with changes to one of its plots
	402	"""
	403	self.removePlot(id)
	404	self.plot(data=new_plot)
	405
[aadf0af1]	406	def onRemovePlot(self, id):
	407	"""
[570a58f9]	408	Responds to the plot delete action
	409	"""
	410	self.removePlot(id)
	411
	412	if len(self.plot_dict) == 0:
	413	# last plot: graph is empty must be the panel must be destroyed
	414	self.parent.close()
	415
	416	def removePlot(self, id):
	417	"""
[aadf0af1]	418	Deletes the selected plot from the chart
	419	"""
[b3e8629]	420	if id not in list(self.plot_dict.keys()):
[570a58f9]	421	return
	422
[aadf0af1]	423	selected_plot = self.plot_dict[id]
	424
	425	plot_dict = copy.deepcopy(self.plot_dict)
	426
[b46f285]	427	# Labels might have been changed
	428	xl = self.ax.xaxis.label.get_text()
	429	yl = self.ax.yaxis.label.get_text()
	430
[aadf0af1]	431	self.plot_dict = {}
	432
	433	plt.cla()
	434	self.ax.cla()
	435
	436	for ids in plot_dict:
	437	if ids != id:
[b46f285]	438	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	439
	440	# Reset the labels
	441	self.ax.set_xlabel(xl)
	442	self.ax.set_ylabel(yl)
	443	self.canvas.draw()
[aadf0af1]	444
	445	def onFreeze(self, id):
	446	"""
	447	Freezes the selected plot to a separate chart
	448	"""
	449	plot = self.plot_dict[id]
	450	self.manager.add_data(data_list=[plot])
	451
[87cc73a]	452	def onModifyPlot(self, id):
[aadf0af1]	453	"""
	454	Allows for MPL modifications to the selected plot
	455	"""
[87cc73a]	456	selected_plot = self.plot_dict[id]
	457
	458	# Old style color - single integer for enum color
	459	# New style color - #hhhhhh
	460	color = selected_plot.custom_color
	461	# marker symbol and size
	462	marker = selected_plot.symbol
	463	marker_size = selected_plot.markersize
	464	# plot name
	465	legend = selected_plot.title
	466
	467	plotPropertiesWidget = PlotProperties(self,
	468	color=color,
	469	marker=marker,
	470	marker_size=marker_size,
	471	legend=legend)
[4992ff2]	472	if plotPropertiesWidget.exec_() == QtWidgets.QDialog.Accepted:
[87cc73a]	473	# Update Data1d
[0f3c22d]	474	selected_plot.markersize = plotPropertiesWidget.markersize()
	475	selected_plot.custom_color = plotPropertiesWidget.color()
	476	selected_plot.symbol = plotPropertiesWidget.marker()
	477	selected_plot.title = plotPropertiesWidget.legend()
[87cc73a]	478
	479	# Redraw the plot
	480	self.replacePlot(id, selected_plot)
[aadf0af1]	481
	482	def onToggleHideError(self, id):
	483	"""
	484	Toggles hide error/show error menu item
	485	"""
	486	selected_plot = self.plot_dict[id]
	487	current = selected_plot.hide_error
	488
	489	# Flip the flag
	490	selected_plot.hide_error = not current
	491
	492	plot_dict = copy.deepcopy(self.plot_dict)
	493	self.plot_dict = {}
	494
	495	# Clean the canvas
	496	plt.cla()
	497	self.ax.cla()
	498
	499	# Recreate the plots but reverse the error flag for the current
	500	for ids in plot_dict:
	501	if ids == id:
	502	self.plot(data=plot_dict[ids], hide_error=(not current))
	503	else:
	504	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	505
[6d05e1d]	506	def xyTransform(self, xLabel="", yLabel=""):
	507	"""
	508	Transforms x and y in View and set the scale
	509	"""
[570a58f9]	510	# Transform all the plots on the chart
[b3e8629]	511	for id in list(self.plot_dict.keys()):
[570a58f9]	512	current_plot = self.plot_dict[id]
	513	if current_plot.id == "fit":
	514	self.removePlot(id)
	515	continue
[fed94a2]	516
[570a58f9]	517	new_xlabel, new_ylabel, xscale, yscale =\
	518	GuiUtils.xyTransform(current_plot, xLabel, yLabel)
	519	self.xscale = xscale
	520	self.yscale = yscale
[b46f285]	521
[570a58f9]	522	# Plot the updated chart
	523	self.removePlot(id)
[b46f285]	524
	525	# This assignment will wrap the label in Latex "$"
	526	self.xLabel = new_xlabel
	527	self.yLabel = new_ylabel
[a66ff280]	528	# Directly overwrite the data to avoid label reassignment
	529	self._data = current_plot
[87cc73a]	530	self.plot()
[570a58f9]	531
	532	pass # debug hook
	533
[fed94a2]	534	def onFitDisplay(self, fit_data):
	535	"""
	536	Add a linear fitting line to the chart
	537	"""
	538	# Create new data structure with fitting result
	539	tempx = fit_data[0]
	540	tempy = fit_data[1]
	541	self.fit_result.x = []
	542	self.fit_result.y = []
	543	self.fit_result.x = tempx
	544	self.fit_result.y = tempy
	545	self.fit_result.dx = None
	546	self.fit_result.dy = None
	547
	548	#Remove another Fit, if exists
	549	self.removePlot("fit")
	550
	551	self.fit_result.reset_view()
	552	#self.offset_graph()
	553
	554	# Set plot properties
	555	self.fit_result.id = 'fit'
	556	self.fit_result.title = 'Fit'
	557	self.fit_result.name = 'Fit'
	558
	559	# Plot the line
[87cc73a]	560	self.plot(data=self.fit_result, marker='-', hide_error=True)
[fed94a2]	561
[3bdbfcc]	562	def onMplMouseDown(self, event):
	563	"""
	564	Left button down and ready to drag
	565	"""
	566	# Check that the LEFT button was pressed
[0268aed]	567	if event.button != 1:
	568	return
	569
	570	self.leftdown = True
	571	for text in self.textList:
	572	if text.contains(event)[0]: # If user has clicked on text
	573	self.selectedText = text
	574	return
	575	if event.inaxes is None:
	576	return
	577	try:
	578	self.x_click = float(event.xdata) # / size_x
	579	self.y_click = float(event.ydata) # / size_y
	580	except:
	581	self.position = None
[3bdbfcc]	582
	583	def onMplMouseUp(self, event):
	584	"""
	585	Set the data coordinates of the click
	586	"""
	587	self.x_click = event.xdata
	588	self.y_click = event.ydata
	589
	590	# Check that the LEFT button was released
	591	if event.button == 1:
	592	self.leftdown = False
	593	self.selectedText = None
	594
	595	#release the legend
	596	if self.gotLegend == 1:
	597	self.gotLegend = 0
	598
	599	def onMplMouseMotion(self, event):
	600	"""
	601	Check if the left button is press and the mouse in moving.
	602	Compute delta for x and y coordinates and then perform the drag
	603	"""
	604	if self.gotLegend == 1 and self.leftdown:
	605	self.onLegendMotion(event)
	606	return
	607
[0268aed]	608	#if self.leftdown and self.selectedText is not None:
[9f25bce]	609	if not self.leftdown or self.selectedText is None:
[3bdbfcc]	610	return
[0268aed]	611	# User has clicked on text and is dragging
[9f25bce]	612	if event.inaxes is None:
[0268aed]	613	# User has dragged outside of axes
	614	self.selectedText = None
	615	else:
	616	# Only move text if mouse is within axes
	617	self.selectedText.set_position((event.xdata, event.ydata))
	618	self.canvas.draw_idle()
	619	return
[3bdbfcc]	620
	621	def onMplPick(self, event):
	622	"""
	623	On pick legend
	624	"""
	625	legend = self.legend
[0268aed]	626	if event.artist != legend:
	627	return
	628	# Get the box of the legend.
	629	bbox = self.legend.get_window_extent()
	630	# Get mouse coordinates at time of pick.
	631	self.mouse_x = event.mouseevent.x
	632	self.mouse_y = event.mouseevent.y
	633	# Get legend coordinates at time of pick.
	634	self.legend_x = bbox.xmin
	635	self.legend_y = bbox.ymin
	636	# Indicate we picked up the legend.
	637	self.gotLegend = 1
	638
	639	#self.legend.legendPatch.set_alpha(0.5)
[3bdbfcc]	640
	641	def onLegendMotion(self, event):
	642	"""
	643	On legend in motion
	644	"""
	645	ax = event.inaxes
[cee5c78]	646	if ax is None:
[3bdbfcc]	647	return
	648	# Event occurred inside a plotting area
	649	lo_x, hi_x = ax.get_xlim()
	650	lo_y, hi_y = ax.get_ylim()
	651	# How much the mouse moved.
	652	x = mouse_diff_x = self.mouse_x - event.x
	653	y = mouse_diff_y = self.mouse_y - event.y
	654	# Put back inside
	655	if x < lo_x:
	656	x = lo_x
	657	if x > hi_x:
	658	x = hi_x
	659	if y < lo_y:
	660	y = lo_y
	661	if y > hi_y:
	662	y = hi_y
	663	# Move the legend from its previous location by that same amount
	664	loc_in_canvas = self.legend_x - mouse_diff_x, \
	665	self.legend_y - mouse_diff_y
	666	# Transform into legend coordinate system
	667	trans_axes = self.legend.parent.transAxes.inverted()
	668	loc_in_norm_axes = trans_axes.transform_point(loc_in_canvas)
	669	self.legend_pos_loc = tuple(loc_in_norm_axes)
	670	self.legend._loc = self.legend_pos_loc
	671	# self.canvas.draw()
	672	self.canvas.draw_idle()
	673
	674	def onMplWheel(self, event):
	675	"""
	676	Process mouse wheel as zoom events
	677	"""
	678	ax = event.inaxes
	679	step = event.step
	680
[cee5c78]	681	if ax is not None:
[3bdbfcc]	682	# Event occurred inside a plotting area
	683	lo, hi = ax.get_xlim()
	684	lo, hi = PlotUtilities.rescale(lo, hi, step,
	685	pt=event.xdata, scale=ax.get_xscale())
	686	if not self.xscale == 'log' or lo > 0:
	687	self._scale_xlo = lo
	688	self._scale_xhi = hi
	689	ax.set_xlim((lo, hi))
	690
	691	lo, hi = ax.get_ylim()
	692	lo, hi = PlotUtilities.rescale(lo, hi, step, pt=event.ydata,
	693	scale=ax.get_yscale())
	694	if not self.yscale == 'log' or lo > 0:
	695	self._scale_ylo = lo
	696	self._scale_yhi = hi
	697	ax.set_ylim((lo, hi))
	698	else:
	699	# Check if zoom happens in the axes
	700	xdata, ydata = None, None
	701	x, y = event.x, event.y
	702
	703	for ax in self.axes:
	704	insidex, _ = ax.xaxis.contains(event)
	705	if insidex:
	706	xdata, _ = ax.transAxes.inverted().transform_point((x, y))
	707	insidey, _ = ax.yaxis.contains(event)
	708	if insidey:
	709	_, ydata = ax.transAxes.inverted().transform_point((x, y))
	710	if xdata is not None:
	711	lo, hi = ax.get_xlim()
	712	lo, hi = PlotUtilities.rescale(lo, hi, step,
	713	bal=xdata, scale=ax.get_xscale())
	714	if not self.xscale == 'log' or lo > 0:
	715	self._scale_xlo = lo
	716	self._scale_xhi = hi
	717	ax.set_xlim((lo, hi))
	718	if ydata is not None:
	719	lo, hi = ax.get_ylim()
	720	lo, hi = PlotUtilities.rescale(lo, hi, step, bal=ydata,
	721	scale=ax.get_yscale())
	722	if not self.yscale == 'log' or lo > 0:
	723	self._scale_ylo = lo
	724	self._scale_yhi = hi
	725	ax.set_ylim((lo, hi))
	726	self.canvas.draw_idle()
	727
[c4e5400]	728
[4992ff2]	729	class Plotter(QtWidgets.QDialog, PlotterWidget):
[416fa8f]	730	def __init__(self, parent=None, quickplot=False):
	731
[4992ff2]	732	QtWidgets.QDialog.__init__(self)
[aadf0af1]	733	PlotterWidget.__init__(self, parent=self, manager=parent, quickplot=quickplot)
[c4e5400]	734	icon = QtGui.QIcon()
	735	icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
	736	self.setWindowIcon(icon)
	737
[416fa8f]	738

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SasView

source: sasview/src/sas/qtgui/Plotting/Plotter.py @ bb57068

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