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