Plotter.py @ 685e0e3

ESS_GUIESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalc

Last change on this file since 685e0e3 was 685e0e3, checked in by piotr, 6 years ago
Fix for frozen theories not showing correct plots. SASVIEW-978 Fix for Linear Fit not working properly after recent changes.
Property mode set to `100644`
File size: 25.3 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
[685e0e3]	77	if not is_fit:
	78	# make sure we have some function to operate on
	79	if self.data.xtransform is None:
	80	self.data.xtransform = 'log10(x)'
	81	if self.data.ytransform is None:
	82	self.data.ytransform = 'log10(y)'
	83
	84	# Transform data if required.
	85	if self.data.xtransform is not None or self.data.ytransform is not None:
	86	_, _, xscale, yscale = GuiUtils.xyTransform(self.data, self.data.xtransform, self.data.ytransform)
	87	if xscale != 'log':
	88	self.xscale = xscale
	89	if yscale != 'log':
	90	self.yscale = yscale
	91
	92	# Redefine the Scale properties dialog
	93	self.properties = ScaleProperties(self,
	94	init_scale_x=self.data.xtransform,
	95	init_scale_y=self.data.ytransform)
[f182f93]	96
[87cc73a]	97	# Shortcuts
[ef01be4]	98	ax = self.ax
[87cc73a]	99	x = self._data.view.x
	100	y = self._data.view.y
	101
	102	# Marker symbol. Passed marker is one of matplotlib.markers characters
	103	# Alternatively, picked up from Data1D as an int index of PlotUtilities.SHAPES dict
	104	if marker is None:
	105	marker = self.data.symbol
[6fd4e36]	106	# Try name first
	107	try:
[cb4d219]	108	marker = dict(PlotUtilities.SHAPES)[marker]
[6fd4e36]	109	except KeyError:
[8f83719f]	110	marker = list(PlotUtilities.SHAPES.values())[marker]
[87cc73a]	111
[6fd4e36]	112	assert marker is not None
[87cc73a]	113	# Plot name
[b789967]	114	if self.data.title:
	115	self.title(title=self.data.title)
	116	else:
	117	self.title(title=self.data.name)
[87cc73a]	118
	119	# Error marker toggle
	120	if hide_error is None:
	121	hide_error = self.data.hide_error
	122
	123	# Plot color
	124	if color is None:
	125	color = self.data.custom_color
	126
	127	color = PlotUtilities.getValidColor(color)
	128
	129	markersize = self._data.markersize
	130
[239214f]	131	# Draw non-standard markers
	132	l_width = markersize * 0.4
	133	if marker == '-' or marker == '--':
	134	line = self.ax.plot(x, y, color=color, lw=l_width, marker='',
	135	linestyle=marker, label=self._title, zorder=10)[0]
	136
	137	elif marker == 'vline':
	138	y_min = min(y)*9.0/10.0 if min(y) < 0 else 0.0
	139	line = self.ax.vlines(x=x, ymin=y_min, ymax=y, color=color,
	140	linestyle='-', label=self._title, lw=l_width, zorder=1)
	141
	142	elif marker == 'step':
	143	line = self.ax.step(x, y, color=color, marker='', linestyle='-',
	144	label=self._title, lw=l_width, zorder=1)[0]
[8cb6cd6]	145
[c4e5400]	146	else:
[87cc73a]	147	# plot data with/without errorbars
	148	if hide_error:
	149	line = ax.plot(x, y, marker=marker, color=color, markersize=markersize,
	150	linestyle='', label=self._title, picker=True)
	151	else:
	152	line = ax.errorbar(x, y,
	153	yerr=self._data.view.dy, xerr=None,
	154	capsize=2, linestyle='',
	155	barsabove=False,
	156	color=color,
	157	marker=marker,
	158	markersize=markersize,
	159	lolims=False, uplims=False,
	160	xlolims=False, xuplims=False,
	161	label=self._title,
	162	picker=True)
[8cb6cd6]	163
[aadf0af1]	164	# Update the list of data sets (plots) in chart
	165	self.plot_dict[self._data.id] = self.data
	166
[8cb6cd6]	167	# Now add the legend with some customizations.
[f0bb711]	168
[42787fb]	169	if self.showLegend:
	170	self.legend = ax.legend(loc='upper right', shadow=True)
	171	if self.legend:
	172	self.legend.set_picker(True)
[8cb6cd6]	173
[6d05e1d]	174	# Current labels for axes
[570a58f9]	175	if self.y_label and not is_fit:
	176	ax.set_ylabel(self.y_label)
	177	if self.x_label and not is_fit:
	178	ax.set_xlabel(self.x_label)
[6d05e1d]	179
	180	# Include scaling (log vs. linear)
	181	ax.set_xscale(self.xscale)
[3b7b218]	182	ax.set_yscale(self.yscale)
[8cb6cd6]	183
[257bd57]	184	# define the ranges
	185	self.setRange = SetGraphRange(parent=self,
	186	x_range=self.ax.get_xlim(), y_range=self.ax.get_ylim())
	187
[8cb6cd6]	188	# refresh canvas
[fbfc488]	189	self.canvas.draw_idle()
[8cb6cd6]	190
[aadf0af1]	191	def createContextMenu(self):
[c4e5400]	192	"""
	193	Define common context menu and associated actions for the MPL widget
	194	"""
	195	self.defaultContextMenu()
	196
[aadf0af1]	197	# Separate plots
	198	self.addPlotsToContextMenu()
	199
[27313b7]	200	# Additional menu items
	201	self.contextMenu.addSeparator()
	202	self.actionAddText = self.contextMenu.addAction("Add Text")
	203	self.actionRemoveText = self.contextMenu.addAction("Remove Text")
	204	self.contextMenu.addSeparator()
	205	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	206	self.contextMenu.addSeparator()
	207	self.actionSetGraphRange = self.contextMenu.addAction("Set Graph Range")
	208	self.actionResetGraphRange =\
	209	self.contextMenu.addAction("Reset Graph Range")
	210	# Add the title change for dialogs
[aadf0af1]	211	#if self.parent:
	212	self.contextMenu.addSeparator()
	213	self.actionWindowTitle = self.contextMenu.addAction("Window Title")
[27313b7]	214
	215	# Define the callbacks
	216	self.actionAddText.triggered.connect(self.onAddText)
	217	self.actionRemoveText.triggered.connect(self.onRemoveText)
	218	self.actionChangeScale.triggered.connect(self.onScaleChange)
	219	self.actionSetGraphRange.triggered.connect(self.onSetGraphRange)
	220	self.actionResetGraphRange.triggered.connect(self.onResetGraphRange)
	221	self.actionWindowTitle.triggered.connect(self.onWindowsTitle)
[c4e5400]	222
[aadf0af1]	223	def addPlotsToContextMenu(self):
	224	"""
	225	Adds operations on all plotted sets of data to the context menu
	226	"""
[b3e8629]	227	for id in list(self.plot_dict.keys()):
[aadf0af1]	228	plot = self.plot_dict[id]
[b789967]	229
	230	name = plot.name if plot.name else plot.title
[aadf0af1]	231	plot_menu = self.contextMenu.addMenu('&%s' % name)
	232
	233	self.actionDataInfo = plot_menu.addAction("&DataInfo")
	234	self.actionDataInfo.triggered.connect(
	235	functools.partial(self.onDataInfo, plot))
	236
	237	self.actionSavePointsAsFile = plot_menu.addAction("&Save Points as a File")
	238	self.actionSavePointsAsFile.triggered.connect(
	239	functools.partial(self.onSavePoints, plot))
	240	plot_menu.addSeparator()
	241
	242	if plot.id != 'fit':
	243	self.actionLinearFit = plot_menu.addAction('&Linear Fit')
[570a58f9]	244	self.actionLinearFit.triggered.connect(
	245	functools.partial(self.onLinearFit, id))
[aadf0af1]	246	plot_menu.addSeparator()
	247
	248	self.actionRemovePlot = plot_menu.addAction("Remove")
	249	self.actionRemovePlot.triggered.connect(
	250	functools.partial(self.onRemovePlot, id))
	251
	252	if not plot.is_data:
	253	self.actionFreeze = plot_menu.addAction('&Freeze')
	254	self.actionFreeze.triggered.connect(
	255	functools.partial(self.onFreeze, id))
	256	plot_menu.addSeparator()
	257
	258	if plot.is_data:
	259	self.actionHideError = plot_menu.addAction("Hide Error Bar")
	260	if plot.dy is not None and plot.dy != []:
	261	if plot.hide_error:
	262	self.actionHideError.setText('Show Error Bar')
	263	else:
	264	self.actionHideError.setEnabled(False)
	265	self.actionHideError.triggered.connect(
	266	functools.partial(self.onToggleHideError, id))
	267	plot_menu.addSeparator()
	268
	269	self.actionModifyPlot = plot_menu.addAction('&Modify Plot Property')
[87cc73a]	270	self.actionModifyPlot.triggered.connect(
	271	functools.partial(self.onModifyPlot, id))
[aadf0af1]	272
	273	def createContextMenuQuick(self):
[6d05e1d]	274	"""
	275	Define context menu and associated actions for the quickplot MPL widget
	276	"""
[c4e5400]	277	# Default actions
	278	self.defaultContextMenu()
	279
	280	# Additional actions
[6d05e1d]	281	self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off")
	282	self.contextMenu.addSeparator()
	283	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	284
	285	# Define the callbacks
	286	self.actionToggleGrid.triggered.connect(self.onGridToggle)
	287	self.actionChangeScale.triggered.connect(self.onScaleChange)
	288
	289	def onScaleChange(self):
	290	"""
	291	Show a dialog allowing axes rescaling
	292	"""
[4992ff2]	293	if self.properties.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	294	self.xLogLabel, self.yLogLabel = self.properties.getValues()
[bb57068]	295	self.data.xtransform = self.xLogLabel
	296	self.data.ytransform = self.yLogLabel
[570a58f9]	297	self.xyTransform(self.xLogLabel, self.yLogLabel)
[6d05e1d]	298
[27313b7]	299	def onAddText(self):
	300	"""
	301	Show a dialog allowing adding custom text to the chart
	302	"""
[eb1a386]	303	if self.addText.exec_() != QtWidgets.QDialog.Accepted:
	304	return
	305
	306	# Retrieve the new text, its font and color
	307	extra_text = self.addText.text()
	308	extra_font = self.addText.font()
	309	extra_color = self.addText.color()
	310
	311	# Place the text on the screen at the click location
	312	pos_x = self.x_click
	313	pos_y = self.y_click
	314
	315	# Map QFont onto MPL font
	316	mpl_font = FontProperties()
	317	mpl_font.set_size(int(extra_font.pointSize()))
	318	mpl_font.set_family(str(extra_font.family()))
	319	mpl_font.set_weight(int(extra_font.weight()))
	320	# MPL style names
	321	styles = ['normal', 'italic', 'oblique']
	322	# QFont::Style maps directly onto the above
	323	try:
	324	mpl_font.set_style(styles[extra_font.style()])
	325	except:
	326	pass
	327
	328	if len(extra_text) > 0:
	329	new_text = self.ax.text(pos_x,
	330	pos_y,
	331	extra_text,
	332	color=extra_color,
	333	fontproperties=mpl_font)
	334
	335	# Update the list of annotations
	336	self.textList.append(new_text)
	337	self.canvas.draw()
[27313b7]	338
	339	def onRemoveText(self):
	340	"""
[9290b1a]	341	Remove the most recently added text
[27313b7]	342	"""
[d3ca363]	343	num_text = len(self.textList)
	344	if num_text < 1:
	345	return
	346	txt = self.textList[num_text - 1]
	347	text_remove = txt.get_text()
[eb1a386]	348	try:
	349	txt.remove()
	350	except ValueError:
	351	# Text got already deleted somehow
	352	pass
[d3ca363]	353	self.textList.remove(txt)
	354
	355	self.canvas.draw_idle()
[27313b7]	356
	357	def onSetGraphRange(self):
	358	"""
	359	Show a dialog allowing setting the chart ranges
	360	"""
[d3ca363]	361	# min and max of data
[4992ff2]	362	if self.setRange.exec_() == QtWidgets.QDialog.Accepted:
[257bd57]	363	x_range = self.setRange.xrange()
	364	y_range = self.setRange.yrange()
	365	if x_range is not None and y_range is not None:
	366	self.ax.set_xlim(x_range)
	367	self.ax.set_ylim(y_range)
	368	self.canvas.draw_idle()
[27313b7]	369
	370	def onResetGraphRange(self):
	371	"""
[d3ca363]	372	Resets the chart X and Y ranges to their original values
[27313b7]	373	"""
[d3ca363]	374	x_range = (self.data.x.min(), self.data.x.max())
	375	y_range = (self.data.y.min(), self.data.y.max())
[257bd57]	376	if x_range is not None and y_range is not None:
	377	self.ax.set_xlim(x_range)
	378	self.ax.set_ylim(y_range)
	379	self.canvas.draw_idle()
[27313b7]	380
[570a58f9]	381	def onLinearFit(self, id):
[aadf0af1]	382	"""
	383	Creates and displays a simple linear fit for the selected plot
	384	"""
[570a58f9]	385	selected_plot = self.plot_dict[id]
	386
	387	maxrange = (min(selected_plot.x), max(selected_plot.x))
	388	fitrange = self.ax.get_xlim()
	389
	390	fit_dialog = LinearFit(parent=self,
	391	data=selected_plot,
	392	max_range=maxrange,
	393	fit_range=fitrange,
	394	xlabel=self.xLogLabel,
	395	ylabel=self.yLogLabel)
[7969b9c]	396	fit_dialog.updatePlot.connect(self.onFitDisplay)
[4992ff2]	397	if fit_dialog.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	398	return
[aadf0af1]	399
[87cc73a]	400	def replacePlot(self, id, new_plot):
	401	"""
	402	Remove plot 'id' and add 'new_plot' to the chart.
	403	This effectlvely refreshes the chart with changes to one of its plots
	404	"""
	405	self.removePlot(id)
	406	self.plot(data=new_plot)
	407
[aadf0af1]	408	def onRemovePlot(self, id):
	409	"""
[570a58f9]	410	Responds to the plot delete action
	411	"""
	412	self.removePlot(id)
	413
	414	if len(self.plot_dict) == 0:
	415	# last plot: graph is empty must be the panel must be destroyed
	416	self.parent.close()
	417
	418	def removePlot(self, id):
	419	"""
[aadf0af1]	420	Deletes the selected plot from the chart
	421	"""
[b3e8629]	422	if id not in list(self.plot_dict.keys()):
[570a58f9]	423	return
	424
[aadf0af1]	425	selected_plot = self.plot_dict[id]
	426
	427	plot_dict = copy.deepcopy(self.plot_dict)
	428
[b46f285]	429	# Labels might have been changed
	430	xl = self.ax.xaxis.label.get_text()
	431	yl = self.ax.yaxis.label.get_text()
	432
[aadf0af1]	433	self.plot_dict = {}
	434
	435	plt.cla()
	436	self.ax.cla()
	437
	438	for ids in plot_dict:
	439	if ids != id:
[b46f285]	440	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	441
	442	# Reset the labels
	443	self.ax.set_xlabel(xl)
	444	self.ax.set_ylabel(yl)
	445	self.canvas.draw()
[aadf0af1]	446
	447	def onFreeze(self, id):
	448	"""
	449	Freezes the selected plot to a separate chart
	450	"""
	451	plot = self.plot_dict[id]
	452	self.manager.add_data(data_list=[plot])
	453
[87cc73a]	454	def onModifyPlot(self, id):
[aadf0af1]	455	"""
	456	Allows for MPL modifications to the selected plot
	457	"""
[87cc73a]	458	selected_plot = self.plot_dict[id]
	459
	460	# Old style color - single integer for enum color
	461	# New style color - #hhhhhh
	462	color = selected_plot.custom_color
	463	# marker symbol and size
	464	marker = selected_plot.symbol
	465	marker_size = selected_plot.markersize
	466	# plot name
	467	legend = selected_plot.title
	468
	469	plotPropertiesWidget = PlotProperties(self,
	470	color=color,
	471	marker=marker,
	472	marker_size=marker_size,
	473	legend=legend)
[4992ff2]	474	if plotPropertiesWidget.exec_() == QtWidgets.QDialog.Accepted:
[87cc73a]	475	# Update Data1d
[0f3c22d]	476	selected_plot.markersize = plotPropertiesWidget.markersize()
	477	selected_plot.custom_color = plotPropertiesWidget.color()
	478	selected_plot.symbol = plotPropertiesWidget.marker()
	479	selected_plot.title = plotPropertiesWidget.legend()
[87cc73a]	480
	481	# Redraw the plot
	482	self.replacePlot(id, selected_plot)
[aadf0af1]	483
	484	def onToggleHideError(self, id):
	485	"""
	486	Toggles hide error/show error menu item
	487	"""
	488	selected_plot = self.plot_dict[id]
	489	current = selected_plot.hide_error
	490
	491	# Flip the flag
	492	selected_plot.hide_error = not current
	493
	494	plot_dict = copy.deepcopy(self.plot_dict)
	495	self.plot_dict = {}
	496
	497	# Clean the canvas
	498	plt.cla()
	499	self.ax.cla()
	500
	501	# Recreate the plots but reverse the error flag for the current
	502	for ids in plot_dict:
	503	if ids == id:
	504	self.plot(data=plot_dict[ids], hide_error=(not current))
	505	else:
	506	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	507
[6d05e1d]	508	def xyTransform(self, xLabel="", yLabel=""):
	509	"""
	510	Transforms x and y in View and set the scale
	511	"""
[570a58f9]	512	# Transform all the plots on the chart
[b3e8629]	513	for id in list(self.plot_dict.keys()):
[570a58f9]	514	current_plot = self.plot_dict[id]
	515	if current_plot.id == "fit":
	516	self.removePlot(id)
	517	continue
[fed94a2]	518
[570a58f9]	519	new_xlabel, new_ylabel, xscale, yscale =\
	520	GuiUtils.xyTransform(current_plot, xLabel, yLabel)
	521	self.xscale = xscale
	522	self.yscale = yscale
[b46f285]	523
[570a58f9]	524	# Plot the updated chart
	525	self.removePlot(id)
[b46f285]	526
	527	# This assignment will wrap the label in Latex "$"
	528	self.xLabel = new_xlabel
	529	self.yLabel = new_ylabel
[a66ff280]	530	# Directly overwrite the data to avoid label reassignment
	531	self._data = current_plot
[87cc73a]	532	self.plot()
[570a58f9]	533
	534	pass # debug hook
	535
[fed94a2]	536	def onFitDisplay(self, fit_data):
	537	"""
	538	Add a linear fitting line to the chart
	539	"""
	540	# Create new data structure with fitting result
	541	tempx = fit_data[0]
	542	tempy = fit_data[1]
	543	self.fit_result.x = []
	544	self.fit_result.y = []
	545	self.fit_result.x = tempx
	546	self.fit_result.y = tempy
	547	self.fit_result.dx = None
	548	self.fit_result.dy = None
	549
	550	#Remove another Fit, if exists
	551	self.removePlot("fit")
	552
	553	self.fit_result.reset_view()
	554	#self.offset_graph()
	555
	556	# Set plot properties
	557	self.fit_result.id = 'fit'
	558	self.fit_result.title = 'Fit'
	559	self.fit_result.name = 'Fit'
	560
	561	# Plot the line
[87cc73a]	562	self.plot(data=self.fit_result, marker='-', hide_error=True)
[fed94a2]	563
[3bdbfcc]	564	def onMplMouseDown(self, event):
	565	"""
	566	Left button down and ready to drag
	567	"""
	568	# Check that the LEFT button was pressed
[0268aed]	569	if event.button != 1:
	570	return
	571
	572	self.leftdown = True
	573	for text in self.textList:
	574	if text.contains(event)[0]: # If user has clicked on text
	575	self.selectedText = text
	576	return
	577	if event.inaxes is None:
	578	return
	579	try:
	580	self.x_click = float(event.xdata) # / size_x
	581	self.y_click = float(event.ydata) # / size_y
	582	except:
	583	self.position = None
[3bdbfcc]	584
	585	def onMplMouseUp(self, event):
	586	"""
	587	Set the data coordinates of the click
	588	"""
	589	self.x_click = event.xdata
	590	self.y_click = event.ydata
	591
	592	# Check that the LEFT button was released
	593	if event.button == 1:
	594	self.leftdown = False
	595	self.selectedText = None
	596
	597	#release the legend
	598	if self.gotLegend == 1:
	599	self.gotLegend = 0
	600
	601	def onMplMouseMotion(self, event):
	602	"""
	603	Check if the left button is press and the mouse in moving.
	604	Compute delta for x and y coordinates and then perform the drag
	605	"""
	606	if self.gotLegend == 1 and self.leftdown:
	607	self.onLegendMotion(event)
	608	return
	609
[0268aed]	610	#if self.leftdown and self.selectedText is not None:
[9f25bce]	611	if not self.leftdown or self.selectedText is None:
[3bdbfcc]	612	return
[0268aed]	613	# User has clicked on text and is dragging
[9f25bce]	614	if event.inaxes is None:
[0268aed]	615	# User has dragged outside of axes
	616	self.selectedText = None
	617	else:
	618	# Only move text if mouse is within axes
	619	self.selectedText.set_position((event.xdata, event.ydata))
	620	self.canvas.draw_idle()
	621	return
[3bdbfcc]	622
	623	def onMplPick(self, event):
	624	"""
	625	On pick legend
	626	"""
	627	legend = self.legend
[0268aed]	628	if event.artist != legend:
	629	return
	630	# Get the box of the legend.
	631	bbox = self.legend.get_window_extent()
	632	# Get mouse coordinates at time of pick.
	633	self.mouse_x = event.mouseevent.x
	634	self.mouse_y = event.mouseevent.y
	635	# Get legend coordinates at time of pick.
	636	self.legend_x = bbox.xmin
	637	self.legend_y = bbox.ymin
	638	# Indicate we picked up the legend.
	639	self.gotLegend = 1
	640
	641	#self.legend.legendPatch.set_alpha(0.5)
[3bdbfcc]	642
	643	def onLegendMotion(self, event):
	644	"""
	645	On legend in motion
	646	"""
	647	ax = event.inaxes
[cee5c78]	648	if ax is None:
[3bdbfcc]	649	return
	650	# Event occurred inside a plotting area
	651	lo_x, hi_x = ax.get_xlim()
	652	lo_y, hi_y = ax.get_ylim()
	653	# How much the mouse moved.
	654	x = mouse_diff_x = self.mouse_x - event.x
	655	y = mouse_diff_y = self.mouse_y - event.y
	656	# Put back inside
	657	if x < lo_x:
	658	x = lo_x
	659	if x > hi_x:
	660	x = hi_x
	661	if y < lo_y:
	662	y = lo_y
	663	if y > hi_y:
	664	y = hi_y
	665	# Move the legend from its previous location by that same amount
	666	loc_in_canvas = self.legend_x - mouse_diff_x, \
	667	self.legend_y - mouse_diff_y
	668	# Transform into legend coordinate system
	669	trans_axes = self.legend.parent.transAxes.inverted()
	670	loc_in_norm_axes = trans_axes.transform_point(loc_in_canvas)
	671	self.legend_pos_loc = tuple(loc_in_norm_axes)
	672	self.legend._loc = self.legend_pos_loc
	673	# self.canvas.draw()
	674	self.canvas.draw_idle()
	675
	676	def onMplWheel(self, event):
	677	"""
	678	Process mouse wheel as zoom events
	679	"""
	680	ax = event.inaxes
	681	step = event.step
	682
[cee5c78]	683	if ax is not None:
[3bdbfcc]	684	# Event occurred inside a plotting area
	685	lo, hi = ax.get_xlim()
	686	lo, hi = PlotUtilities.rescale(lo, hi, step,
	687	pt=event.xdata, scale=ax.get_xscale())
	688	if not self.xscale == 'log' or lo > 0:
	689	self._scale_xlo = lo
	690	self._scale_xhi = hi
	691	ax.set_xlim((lo, hi))
	692
	693	lo, hi = ax.get_ylim()
	694	lo, hi = PlotUtilities.rescale(lo, hi, step, pt=event.ydata,
	695	scale=ax.get_yscale())
	696	if not self.yscale == 'log' or lo > 0:
	697	self._scale_ylo = lo
	698	self._scale_yhi = hi
	699	ax.set_ylim((lo, hi))
	700	else:
	701	# Check if zoom happens in the axes
	702	xdata, ydata = None, None
	703	x, y = event.x, event.y
	704
	705	for ax in self.axes:
	706	insidex, _ = ax.xaxis.contains(event)
	707	if insidex:
	708	xdata, _ = ax.transAxes.inverted().transform_point((x, y))
	709	insidey, _ = ax.yaxis.contains(event)
	710	if insidey:
	711	_, ydata = ax.transAxes.inverted().transform_point((x, y))
	712	if xdata is not None:
	713	lo, hi = ax.get_xlim()
	714	lo, hi = PlotUtilities.rescale(lo, hi, step,
	715	bal=xdata, scale=ax.get_xscale())
	716	if not self.xscale == 'log' or lo > 0:
	717	self._scale_xlo = lo
	718	self._scale_xhi = hi
	719	ax.set_xlim((lo, hi))
	720	if ydata is not None:
	721	lo, hi = ax.get_ylim()
	722	lo, hi = PlotUtilities.rescale(lo, hi, step, bal=ydata,
	723	scale=ax.get_yscale())
	724	if not self.yscale == 'log' or lo > 0:
	725	self._scale_ylo = lo
	726	self._scale_yhi = hi
	727	ax.set_ylim((lo, hi))
	728	self.canvas.draw_idle()
	729
[c4e5400]	730
[4992ff2]	731	class Plotter(QtWidgets.QDialog, PlotterWidget):
[416fa8f]	732	def __init__(self, parent=None, quickplot=False):
	733
[4992ff2]	734	QtWidgets.QDialog.__init__(self)
[aadf0af1]	735	PlotterWidget.__init__(self, parent=self, manager=parent, quickplot=quickplot)
[c4e5400]	736	icon = QtGui.QIcon()
	737	icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
	738	self.setWindowIcon(icon)
	739
[416fa8f]	740

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SasView

source: sasview/src/sas/qtgui/Plotting/Plotter.py @ 685e0e3

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