Plotter.py @ c71b20a

Last change on this file since c71b20a was 5b144c6, checked in by Piotr Rozyczko <rozyczko@…>, 6 years ago
Clumsy fix to the single-data, multi-fitpage plotting issue SASVIEW-1018. Fixed tests after replacing plot_dict indexing from .id to .name
Property mode set to `100644`
File size: 25.8 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
[0231f93]	7	import matplotlib as mpl
[facf4ca]	8	import numpy as np
[9290b1a]	9	from matplotlib.font_manager import FontProperties
[dc5ef15]	10	from sas.qtgui.Plotting.PlotterData import Data1D
[83eb5208]	11	from sas.qtgui.Plotting.PlotterBase import PlotterBase
	12	from sas.qtgui.Plotting.AddText import AddText
	13	from sas.qtgui.Plotting.SetGraphRange import SetGraphRange
	14	from sas.qtgui.Plotting.LinearFit import LinearFit
	15	from sas.qtgui.Plotting.PlotProperties import PlotProperties
[bb57068]	16	from sas.qtgui.Plotting.ScaleProperties import ScaleProperties
[dc5ef15]	17
	18	import sas.qtgui.Utilities.GuiUtils as GuiUtils
[83eb5208]	19	import sas.qtgui.Plotting.PlotUtilities as PlotUtilities
[8cb6cd6]	20
[416fa8f]	21	class PlotterWidget(PlotterBase):
[c4e5400]	22	"""
	23	1D Plot widget for use with a QDialog
[fecfe28]	24	"""
[416fa8f]	25	def __init__(self, parent=None, manager=None, quickplot=False):
	26	super(PlotterWidget, self).__init__(parent, manager=manager, quickplot=quickplot)
[570a58f9]	27
[27313b7]	28	self.parent = parent
[8cb6cd6]	29
[aadf0af1]	30	# Dictionary of {plot_id:Data1d}
	31	self.plot_dict = {}
[c2f3ca2]	32	# Dictionaty of {plot_id:line}
[aadf0af1]	33
[c2f3ca2]	34	self.plot_lines = {}
[fed94a2]	35	# Window for text add
	36	self.addText = AddText(self)
[aadf0af1]	37
[fed94a2]	38	# Log-ness of the axes
[570a58f9]	39	self.xLogLabel = "log10(x)"
	40	self.yLogLabel = "log10(y)"
	41
	42	# Data container for the linear fit
[fed94a2]	43	self.fit_result = Data1D(x=[], y=[], dy=None)
	44	self.fit_result.symbol = 13
	45	self.fit_result.name = "Fit"
[570a58f9]	46
[31c5b58]	47	@property
	48	def data(self):
	49	return self._data
	50
	51	@data.setter
	52	def data(self, value):
[8cb6cd6]	53	""" data setter """
[31c5b58]	54	self._data = value
[cb4d219]	55	if value._xunit:
	56	self.xLabel = "%s(%s)"%(value._xaxis, value._xunit)
	57	else:
	58	self.xLabel = "%s"%(value._xaxis)
	59	if value._yunit:
	60	self.yLabel = "%s(%s)"%(value._yaxis, value._yunit)
	61	else:
	62	self.yLabel = "%s"%(value._yaxis)
	63
	64	if value.scale == 'linear' or value.isSesans:
[749b715]	65	self.xscale = 'linear'
	66	self.yscale = 'linear'
[aadf0af1]	67	self.title(title=value.name)
[8cb6cd6]	68
[04ac604]	69	def plot(self, data=None, color=None, marker=None, hide_error=False, transform=True):
[8cb6cd6]	70	"""
[aadf0af1]	71	Add a new plot of self._data to the chart.
[8cb6cd6]	72	"""
[9290b1a]	73	# Data1D
	74	if isinstance(data, Data1D):
	75	self.data = data
	76	assert(self._data)
	77
[87cc73a]	78	is_fit = (self.data.id=="fit")
[570a58f9]	79
[685e0e3]	80	if not is_fit:
	81	# make sure we have some function to operate on
	82	if self.data.xtransform is None:
	83	self.data.xtransform = 'log10(x)'
	84	if self.data.ytransform is None:
	85	self.data.ytransform = 'log10(y)'
	86
	87	# Transform data if required.
[04ac604]	88	if transform and (self.data.xtransform is not None or self.data.ytransform is not None):
[685e0e3]	89	_, _, xscale, yscale = GuiUtils.xyTransform(self.data, self.data.xtransform, self.data.ytransform)
	90	if xscale != 'log':
	91	self.xscale = xscale
	92	if yscale != 'log':
	93	self.yscale = yscale
	94
	95	# Redefine the Scale properties dialog
	96	self.properties = ScaleProperties(self,
	97	init_scale_x=self.data.xtransform,
	98	init_scale_y=self.data.ytransform)
[f182f93]	99
[87cc73a]	100	# Shortcuts
[ef01be4]	101	ax = self.ax
[87cc73a]	102	x = self._data.view.x
	103	y = self._data.view.y
	104
	105	# Marker symbol. Passed marker is one of matplotlib.markers characters
	106	# Alternatively, picked up from Data1D as an int index of PlotUtilities.SHAPES dict
	107	if marker is None:
	108	marker = self.data.symbol
[6fd4e36]	109	# Try name first
	110	try:
[cb4d219]	111	marker = dict(PlotUtilities.SHAPES)[marker]
[6fd4e36]	112	except KeyError:
[8f83719f]	113	marker = list(PlotUtilities.SHAPES.values())[marker]
[87cc73a]	114
[6fd4e36]	115	assert marker is not None
[87cc73a]	116	# Plot name
[b789967]	117	if self.data.title:
	118	self.title(title=self.data.title)
	119	else:
	120	self.title(title=self.data.name)
[87cc73a]	121
	122	# Error marker toggle
	123	if hide_error is None:
	124	hide_error = self.data.hide_error
	125
	126	# Plot color
	127	if color is None:
	128	color = self.data.custom_color
	129
	130	color = PlotUtilities.getValidColor(color)
[0231f93]	131	self.data.custom_color = color
[87cc73a]	132
	133	markersize = self._data.markersize
	134
[facf4ca]	135	# Include scaling (log vs. linear)
[8274471e]	136	ax.set_xscale(self.xscale, nonposx='clip')
[facf4ca]	137	ax.set_yscale(self.yscale, nonposy='clip')
	138
	139	# define the ranges
	140	self.setRange = SetGraphRange(parent=self,
	141	x_range=self.ax.get_xlim(), y_range=self.ax.get_ylim())
	142
[239214f]	143	# Draw non-standard markers
	144	l_width = markersize * 0.4
	145	if marker == '-' or marker == '--':
	146	line = self.ax.plot(x, y, color=color, lw=l_width, marker='',
	147	linestyle=marker, label=self._title, zorder=10)[0]
	148
	149	elif marker == 'vline':
	150	y_min = min(y)*9.0/10.0 if min(y) < 0 else 0.0
	151	line = self.ax.vlines(x=x, ymin=y_min, ymax=y, color=color,
	152	linestyle='-', label=self._title, lw=l_width, zorder=1)
	153
	154	elif marker == 'step':
	155	line = self.ax.step(x, y, color=color, marker='', linestyle='-',
	156	label=self._title, lw=l_width, zorder=1)[0]
[8cb6cd6]	157
[c4e5400]	158	else:
[87cc73a]	159	# plot data with/without errorbars
	160	if hide_error:
	161	line = ax.plot(x, y, marker=marker, color=color, markersize=markersize,
	162	linestyle='', label=self._title, picker=True)
	163	else:
[facf4ca]	164	dy = self._data.view.dy
	165	# Convert tuple (lo,hi) to array [(x-lo),(hi-x)]
	166	if dy is not None and type(dy) == type(()):
	167	dy = np.vstack((y - dy[0], dy[1] - y)).transpose()
	168
[87cc73a]	169	line = ax.errorbar(x, y,
[facf4ca]	170	yerr=dy,
	171	xerr=None,
[87cc73a]	172	capsize=2, linestyle='',
	173	barsabove=False,
	174	color=color,
	175	marker=marker,
	176	markersize=markersize,
	177	lolims=False, uplims=False,
	178	xlolims=False, xuplims=False,
	179	label=self._title,
[facf4ca]	180	zorder=1,
[87cc73a]	181	picker=True)
[8cb6cd6]	182
[aadf0af1]	183	# Update the list of data sets (plots) in chart
[0cd98a1]	184	self.plot_dict[self._data.name] = self.data
[aadf0af1]	185
[0cd98a1]	186	self.plot_lines[self._data.name] = line
[c2f3ca2]	187
[8cb6cd6]	188	# Now add the legend with some customizations.
[f0bb711]	189
[42787fb]	190	if self.showLegend:
	191	self.legend = ax.legend(loc='upper right', shadow=True)
	192	if self.legend:
	193	self.legend.set_picker(True)
[8cb6cd6]	194
[6d05e1d]	195	# Current labels for axes
[570a58f9]	196	if self.y_label and not is_fit:
	197	ax.set_ylabel(self.y_label)
	198	if self.x_label and not is_fit:
	199	ax.set_xlabel(self.x_label)
[6d05e1d]	200
[8cb6cd6]	201	# refresh canvas
[c2f3ca2]	202	self.canvas.draw()
[8cb6cd6]	203
[aadf0af1]	204	def createContextMenu(self):
[c4e5400]	205	"""
	206	Define common context menu and associated actions for the MPL widget
	207	"""
	208	self.defaultContextMenu()
	209
[aadf0af1]	210	# Separate plots
	211	self.addPlotsToContextMenu()
	212
[27313b7]	213	# Additional menu items
	214	self.contextMenu.addSeparator()
	215	self.actionAddText = self.contextMenu.addAction("Add Text")
	216	self.actionRemoveText = self.contextMenu.addAction("Remove Text")
	217	self.contextMenu.addSeparator()
	218	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	219	self.contextMenu.addSeparator()
	220	self.actionSetGraphRange = self.contextMenu.addAction("Set Graph Range")
	221	self.actionResetGraphRange =\
	222	self.contextMenu.addAction("Reset Graph Range")
	223	# Add the title change for dialogs
[aadf0af1]	224	#if self.parent:
	225	self.contextMenu.addSeparator()
	226	self.actionWindowTitle = self.contextMenu.addAction("Window Title")
[27313b7]	227
	228	# Define the callbacks
	229	self.actionAddText.triggered.connect(self.onAddText)
	230	self.actionRemoveText.triggered.connect(self.onRemoveText)
	231	self.actionChangeScale.triggered.connect(self.onScaleChange)
	232	self.actionSetGraphRange.triggered.connect(self.onSetGraphRange)
	233	self.actionResetGraphRange.triggered.connect(self.onResetGraphRange)
	234	self.actionWindowTitle.triggered.connect(self.onWindowsTitle)
[c4e5400]	235
[aadf0af1]	236	def addPlotsToContextMenu(self):
	237	"""
	238	Adds operations on all plotted sets of data to the context menu
	239	"""
[b3e8629]	240	for id in list(self.plot_dict.keys()):
[aadf0af1]	241	plot = self.plot_dict[id]
[b789967]	242
	243	name = plot.name if plot.name else plot.title
[aadf0af1]	244	plot_menu = self.contextMenu.addMenu('&%s' % name)
	245
	246	self.actionDataInfo = plot_menu.addAction("&DataInfo")
	247	self.actionDataInfo.triggered.connect(
	248	functools.partial(self.onDataInfo, plot))
	249
	250	self.actionSavePointsAsFile = plot_menu.addAction("&Save Points as a File")
	251	self.actionSavePointsAsFile.triggered.connect(
	252	functools.partial(self.onSavePoints, plot))
	253	plot_menu.addSeparator()
	254
	255	if plot.id != 'fit':
	256	self.actionLinearFit = plot_menu.addAction('&Linear Fit')
[570a58f9]	257	self.actionLinearFit.triggered.connect(
	258	functools.partial(self.onLinearFit, id))
[aadf0af1]	259	plot_menu.addSeparator()
	260
	261	self.actionRemovePlot = plot_menu.addAction("Remove")
	262	self.actionRemovePlot.triggered.connect(
	263	functools.partial(self.onRemovePlot, id))
	264
	265	if not plot.is_data:
	266	self.actionFreeze = plot_menu.addAction('&Freeze')
	267	self.actionFreeze.triggered.connect(
	268	functools.partial(self.onFreeze, id))
	269	plot_menu.addSeparator()
	270
	271	if plot.is_data:
	272	self.actionHideError = plot_menu.addAction("Hide Error Bar")
	273	if plot.dy is not None and plot.dy != []:
	274	if plot.hide_error:
	275	self.actionHideError.setText('Show Error Bar')
	276	else:
	277	self.actionHideError.setEnabled(False)
	278	self.actionHideError.triggered.connect(
	279	functools.partial(self.onToggleHideError, id))
	280	plot_menu.addSeparator()
	281
	282	self.actionModifyPlot = plot_menu.addAction('&Modify Plot Property')
[87cc73a]	283	self.actionModifyPlot.triggered.connect(
	284	functools.partial(self.onModifyPlot, id))
[aadf0af1]	285
	286	def createContextMenuQuick(self):
[6d05e1d]	287	"""
	288	Define context menu and associated actions for the quickplot MPL widget
	289	"""
[c4e5400]	290	# Default actions
	291	self.defaultContextMenu()
	292
	293	# Additional actions
[6d05e1d]	294	self.actionToggleGrid = self.contextMenu.addAction("Toggle Grid On/Off")
	295	self.contextMenu.addSeparator()
	296	self.actionChangeScale = self.contextMenu.addAction("Change Scale")
	297
	298	# Define the callbacks
	299	self.actionToggleGrid.triggered.connect(self.onGridToggle)
	300	self.actionChangeScale.triggered.connect(self.onScaleChange)
	301
	302	def onScaleChange(self):
	303	"""
	304	Show a dialog allowing axes rescaling
	305	"""
[4992ff2]	306	if self.properties.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	307	self.xLogLabel, self.yLogLabel = self.properties.getValues()
[bb57068]	308	self.data.xtransform = self.xLogLabel
	309	self.data.ytransform = self.yLogLabel
[570a58f9]	310	self.xyTransform(self.xLogLabel, self.yLogLabel)
[6d05e1d]	311
[27313b7]	312	def onAddText(self):
	313	"""
	314	Show a dialog allowing adding custom text to the chart
	315	"""
[eb1a386]	316	if self.addText.exec_() != QtWidgets.QDialog.Accepted:
	317	return
	318
	319	# Retrieve the new text, its font and color
	320	extra_text = self.addText.text()
	321	extra_font = self.addText.font()
	322	extra_color = self.addText.color()
	323
	324	# Place the text on the screen at the click location
	325	pos_x = self.x_click
	326	pos_y = self.y_click
	327
	328	# Map QFont onto MPL font
	329	mpl_font = FontProperties()
	330	mpl_font.set_size(int(extra_font.pointSize()))
	331	mpl_font.set_family(str(extra_font.family()))
	332	mpl_font.set_weight(int(extra_font.weight()))
	333	# MPL style names
	334	styles = ['normal', 'italic', 'oblique']
	335	# QFont::Style maps directly onto the above
	336	try:
	337	mpl_font.set_style(styles[extra_font.style()])
	338	except:
	339	pass
	340
	341	if len(extra_text) > 0:
	342	new_text = self.ax.text(pos_x,
	343	pos_y,
	344	extra_text,
	345	color=extra_color,
	346	fontproperties=mpl_font)
	347
	348	# Update the list of annotations
	349	self.textList.append(new_text)
	350	self.canvas.draw()
[27313b7]	351
	352	def onRemoveText(self):
	353	"""
[9290b1a]	354	Remove the most recently added text
[27313b7]	355	"""
[d3ca363]	356	num_text = len(self.textList)
	357	if num_text < 1:
	358	return
	359	txt = self.textList[num_text - 1]
	360	text_remove = txt.get_text()
[eb1a386]	361	try:
	362	txt.remove()
	363	except ValueError:
	364	# Text got already deleted somehow
	365	pass
[d3ca363]	366	self.textList.remove(txt)
	367
	368	self.canvas.draw_idle()
[27313b7]	369
	370	def onSetGraphRange(self):
	371	"""
	372	Show a dialog allowing setting the chart ranges
	373	"""
[d3ca363]	374	# min and max of data
[4992ff2]	375	if self.setRange.exec_() == QtWidgets.QDialog.Accepted:
[257bd57]	376	x_range = self.setRange.xrange()
	377	y_range = self.setRange.yrange()
	378	if x_range is not None and y_range is not None:
	379	self.ax.set_xlim(x_range)
	380	self.ax.set_ylim(y_range)
	381	self.canvas.draw_idle()
[27313b7]	382
	383	def onResetGraphRange(self):
	384	"""
[d3ca363]	385	Resets the chart X and Y ranges to their original values
[27313b7]	386	"""
[d3ca363]	387	x_range = (self.data.x.min(), self.data.x.max())
	388	y_range = (self.data.y.min(), self.data.y.max())
[257bd57]	389	if x_range is not None and y_range is not None:
	390	self.ax.set_xlim(x_range)
	391	self.ax.set_ylim(y_range)
	392	self.canvas.draw_idle()
[27313b7]	393
[570a58f9]	394	def onLinearFit(self, id):
[aadf0af1]	395	"""
	396	Creates and displays a simple linear fit for the selected plot
	397	"""
[570a58f9]	398	selected_plot = self.plot_dict[id]
	399
	400	maxrange = (min(selected_plot.x), max(selected_plot.x))
	401	fitrange = self.ax.get_xlim()
	402
	403	fit_dialog = LinearFit(parent=self,
	404	data=selected_plot,
	405	max_range=maxrange,
	406	fit_range=fitrange,
	407	xlabel=self.xLogLabel,
	408	ylabel=self.yLogLabel)
[7969b9c]	409	fit_dialog.updatePlot.connect(self.onFitDisplay)
[4992ff2]	410	if fit_dialog.exec_() == QtWidgets.QDialog.Accepted:
[570a58f9]	411	return
[aadf0af1]	412
[87cc73a]	413	def replacePlot(self, id, new_plot):
	414	"""
	415	Remove plot 'id' and add 'new_plot' to the chart.
	416	This effectlvely refreshes the chart with changes to one of its plots
	417	"""
	418	self.removePlot(id)
	419	self.plot(data=new_plot)
	420
[aadf0af1]	421	def onRemovePlot(self, id):
	422	"""
[570a58f9]	423	Responds to the plot delete action
	424	"""
	425	self.removePlot(id)
	426
	427	if len(self.plot_dict) == 0:
	428	# last plot: graph is empty must be the panel must be destroyed
	429	self.parent.close()
	430
	431	def removePlot(self, id):
	432	"""
[aadf0af1]	433	Deletes the selected plot from the chart
	434	"""
[b3e8629]	435	if id not in list(self.plot_dict.keys()):
[570a58f9]	436	return
	437
[aadf0af1]	438	selected_plot = self.plot_dict[id]
	439
	440	plot_dict = copy.deepcopy(self.plot_dict)
	441
[b46f285]	442	# Labels might have been changed
	443	xl = self.ax.xaxis.label.get_text()
	444	yl = self.ax.yaxis.label.get_text()
	445
[aadf0af1]	446	self.plot_dict = {}
	447
[0231f93]	448	mpl.pyplot.cla()
[aadf0af1]	449	self.ax.cla()
	450
	451	for ids in plot_dict:
	452	if ids != id:
[b46f285]	453	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	454
	455	# Reset the labels
	456	self.ax.set_xlabel(xl)
	457	self.ax.set_ylabel(yl)
	458	self.canvas.draw()
[aadf0af1]	459
	460	def onFreeze(self, id):
	461	"""
	462	Freezes the selected plot to a separate chart
	463	"""
	464	plot = self.plot_dict[id]
	465	self.manager.add_data(data_list=[plot])
	466
[87cc73a]	467	def onModifyPlot(self, id):
[aadf0af1]	468	"""
	469	Allows for MPL modifications to the selected plot
	470	"""
[87cc73a]	471	selected_plot = self.plot_dict[id]
[c2f3ca2]	472	selected_line = self.plot_lines[id]
[87cc73a]	473	# Old style color - single integer for enum color
	474	# New style color - #hhhhhh
	475	color = selected_plot.custom_color
	476	# marker symbol and size
	477	marker = selected_plot.symbol
	478	marker_size = selected_plot.markersize
	479	# plot name
	480	legend = selected_plot.title
	481
	482	plotPropertiesWidget = PlotProperties(self,
	483	color=color,
	484	marker=marker,
	485	marker_size=marker_size,
	486	legend=legend)
[4992ff2]	487	if plotPropertiesWidget.exec_() == QtWidgets.QDialog.Accepted:
[87cc73a]	488	# Update Data1d
[0f3c22d]	489	selected_plot.markersize = plotPropertiesWidget.markersize()
	490	selected_plot.custom_color = plotPropertiesWidget.color()
	491	selected_plot.symbol = plotPropertiesWidget.marker()
	492	selected_plot.title = plotPropertiesWidget.legend()
[87cc73a]	493
	494	# Redraw the plot
	495	self.replacePlot(id, selected_plot)
[aadf0af1]	496
	497	def onToggleHideError(self, id):
	498	"""
	499	Toggles hide error/show error menu item
	500	"""
	501	selected_plot = self.plot_dict[id]
	502	current = selected_plot.hide_error
	503
	504	# Flip the flag
	505	selected_plot.hide_error = not current
	506
	507	plot_dict = copy.deepcopy(self.plot_dict)
	508	self.plot_dict = {}
	509
	510	# Clean the canvas
[0231f93]	511	mpl.pyplot.cla()
[aadf0af1]	512	self.ax.cla()
	513
	514	# Recreate the plots but reverse the error flag for the current
	515	for ids in plot_dict:
	516	if ids == id:
	517	self.plot(data=plot_dict[ids], hide_error=(not current))
	518	else:
	519	self.plot(data=plot_dict[ids], hide_error=plot_dict[ids].hide_error)
	520
[6d05e1d]	521	def xyTransform(self, xLabel="", yLabel=""):
	522	"""
	523	Transforms x and y in View and set the scale
	524	"""
[570a58f9]	525	# Transform all the plots on the chart
[b3e8629]	526	for id in list(self.plot_dict.keys()):
[570a58f9]	527	current_plot = self.plot_dict[id]
	528	if current_plot.id == "fit":
	529	self.removePlot(id)
	530	continue
[fed94a2]	531
[570a58f9]	532	new_xlabel, new_ylabel, xscale, yscale =\
	533	GuiUtils.xyTransform(current_plot, xLabel, yLabel)
	534	self.xscale = xscale
	535	self.yscale = yscale
[b46f285]	536
[570a58f9]	537	# Plot the updated chart
	538	self.removePlot(id)
[b46f285]	539
	540	# This assignment will wrap the label in Latex "$"
	541	self.xLabel = new_xlabel
	542	self.yLabel = new_ylabel
[04ac604]	543
	544	self.plot(data=current_plot, transform=False)
[570a58f9]	545
	546	pass # debug hook
	547
[fed94a2]	548	def onFitDisplay(self, fit_data):
	549	"""
	550	Add a linear fitting line to the chart
	551	"""
	552	# Create new data structure with fitting result
	553	tempx = fit_data[0]
	554	tempy = fit_data[1]
	555	self.fit_result.x = []
	556	self.fit_result.y = []
	557	self.fit_result.x = tempx
	558	self.fit_result.y = tempy
	559	self.fit_result.dx = None
	560	self.fit_result.dy = None
	561
	562	#Remove another Fit, if exists
[5b144c6]	563	self.removePlot("Fit")
[fed94a2]	564
	565	self.fit_result.reset_view()
	566	#self.offset_graph()
	567
	568	# Set plot properties
	569	self.fit_result.id = 'fit'
	570	self.fit_result.title = 'Fit'
	571	self.fit_result.name = 'Fit'
	572
	573	# Plot the line
[87cc73a]	574	self.plot(data=self.fit_result, marker='-', hide_error=True)
[fed94a2]	575
[3bdbfcc]	576	def onMplMouseDown(self, event):
	577	"""
	578	Left button down and ready to drag
	579	"""
	580	# Check that the LEFT button was pressed
[0268aed]	581	if event.button != 1:
	582	return
	583
	584	self.leftdown = True
	585	for text in self.textList:
	586	if text.contains(event)[0]: # If user has clicked on text
	587	self.selectedText = text
	588	return
	589	if event.inaxes is None:
	590	return
	591	try:
	592	self.x_click = float(event.xdata) # / size_x
	593	self.y_click = float(event.ydata) # / size_y
	594	except:
	595	self.position = None
[3bdbfcc]	596
	597	def onMplMouseUp(self, event):
	598	"""
	599	Set the data coordinates of the click
	600	"""
	601	self.x_click = event.xdata
	602	self.y_click = event.ydata
	603
	604	# Check that the LEFT button was released
	605	if event.button == 1:
	606	self.leftdown = False
	607	self.selectedText = None
	608
	609	#release the legend
	610	if self.gotLegend == 1:
	611	self.gotLegend = 0
	612
	613	def onMplMouseMotion(self, event):
	614	"""
	615	Check if the left button is press and the mouse in moving.
	616	Compute delta for x and y coordinates and then perform the drag
	617	"""
	618	if self.gotLegend == 1 and self.leftdown:
	619	self.onLegendMotion(event)
	620	return
	621
[0268aed]	622	#if self.leftdown and self.selectedText is not None:
[9f25bce]	623	if not self.leftdown or self.selectedText is None:
[3bdbfcc]	624	return
[0268aed]	625	# User has clicked on text and is dragging
[9f25bce]	626	if event.inaxes is None:
[0268aed]	627	# User has dragged outside of axes
	628	self.selectedText = None
	629	else:
	630	# Only move text if mouse is within axes
	631	self.selectedText.set_position((event.xdata, event.ydata))
	632	self.canvas.draw_idle()
	633	return
[3bdbfcc]	634
	635	def onMplPick(self, event):
	636	"""
	637	On pick legend
	638	"""
	639	legend = self.legend
[0268aed]	640	if event.artist != legend:
	641	return
	642	# Get the box of the legend.
	643	bbox = self.legend.get_window_extent()
	644	# Get mouse coordinates at time of pick.
	645	self.mouse_x = event.mouseevent.x
	646	self.mouse_y = event.mouseevent.y
	647	# Get legend coordinates at time of pick.
	648	self.legend_x = bbox.xmin
	649	self.legend_y = bbox.ymin
	650	# Indicate we picked up the legend.
	651	self.gotLegend = 1
	652
	653	#self.legend.legendPatch.set_alpha(0.5)
[3bdbfcc]	654
	655	def onLegendMotion(self, event):
	656	"""
	657	On legend in motion
	658	"""
	659	ax = event.inaxes
[cee5c78]	660	if ax is None:
[3bdbfcc]	661	return
	662	# Event occurred inside a plotting area
	663	lo_x, hi_x = ax.get_xlim()
	664	lo_y, hi_y = ax.get_ylim()
	665	# How much the mouse moved.
	666	x = mouse_diff_x = self.mouse_x - event.x
	667	y = mouse_diff_y = self.mouse_y - event.y
	668	# Put back inside
	669	if x < lo_x:
	670	x = lo_x
	671	if x > hi_x:
	672	x = hi_x
	673	if y < lo_y:
	674	y = lo_y
	675	if y > hi_y:
	676	y = hi_y
	677	# Move the legend from its previous location by that same amount
	678	loc_in_canvas = self.legend_x - mouse_diff_x, \
	679	self.legend_y - mouse_diff_y
	680	# Transform into legend coordinate system
	681	trans_axes = self.legend.parent.transAxes.inverted()
	682	loc_in_norm_axes = trans_axes.transform_point(loc_in_canvas)
	683	self.legend_pos_loc = tuple(loc_in_norm_axes)
	684	self.legend._loc = self.legend_pos_loc
	685	# self.canvas.draw()
	686	self.canvas.draw_idle()
	687
	688	def onMplWheel(self, event):
	689	"""
	690	Process mouse wheel as zoom events
	691	"""
	692	ax = event.inaxes
	693	step = event.step
	694
[cee5c78]	695	if ax is not None:
[3bdbfcc]	696	# Event occurred inside a plotting area
	697	lo, hi = ax.get_xlim()
	698	lo, hi = PlotUtilities.rescale(lo, hi, step,
	699	pt=event.xdata, scale=ax.get_xscale())
	700	if not self.xscale == 'log' or lo > 0:
	701	self._scale_xlo = lo
	702	self._scale_xhi = hi
	703	ax.set_xlim((lo, hi))
	704
	705	lo, hi = ax.get_ylim()
	706	lo, hi = PlotUtilities.rescale(lo, hi, step, pt=event.ydata,
	707	scale=ax.get_yscale())
	708	if not self.yscale == 'log' or lo > 0:
	709	self._scale_ylo = lo
	710	self._scale_yhi = hi
	711	ax.set_ylim((lo, hi))
	712	else:
	713	# Check if zoom happens in the axes
	714	xdata, ydata = None, None
	715	x, y = event.x, event.y
	716
	717	for ax in self.axes:
	718	insidex, _ = ax.xaxis.contains(event)
	719	if insidex:
	720	xdata, _ = ax.transAxes.inverted().transform_point((x, y))
	721	insidey, _ = ax.yaxis.contains(event)
	722	if insidey:
	723	_, ydata = ax.transAxes.inverted().transform_point((x, y))
	724	if xdata is not None:
	725	lo, hi = ax.get_xlim()
	726	lo, hi = PlotUtilities.rescale(lo, hi, step,
	727	bal=xdata, scale=ax.get_xscale())
	728	if not self.xscale == 'log' or lo > 0:
	729	self._scale_xlo = lo
	730	self._scale_xhi = hi
	731	ax.set_xlim((lo, hi))
	732	if ydata is not None:
	733	lo, hi = ax.get_ylim()
	734	lo, hi = PlotUtilities.rescale(lo, hi, step, bal=ydata,
	735	scale=ax.get_yscale())
	736	if not self.yscale == 'log' or lo > 0:
	737	self._scale_ylo = lo
	738	self._scale_yhi = hi
	739	ax.set_ylim((lo, hi))
	740	self.canvas.draw_idle()
	741
[c4e5400]	742
[4992ff2]	743	class Plotter(QtWidgets.QDialog, PlotterWidget):
[416fa8f]	744	def __init__(self, parent=None, quickplot=False):
	745
[4992ff2]	746	QtWidgets.QDialog.__init__(self)
[aadf0af1]	747	PlotterWidget.__init__(self, parent=self, manager=parent, quickplot=quickplot)
[c4e5400]	748	icon = QtGui.QIcon()
	749	icon.addPixmap(QtGui.QPixmap(":/res/ball.ico"), QtGui.QIcon.Normal, QtGui.QIcon.Off)
	750	self.setWindowIcon(icon)
	751
[416fa8f]	752

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SasView

source: sasview/src/sas/qtgui/Plotting/Plotter.py @ c71b20a

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