1 | import pylab |
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2 | |
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3 | from PyQt4 import QtGui |
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4 | |
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5 | # TODO: Replace the qt4agg calls below with qt5 equivalent. |
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6 | # Requires some code modifications. |
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7 | # https://www.boxcontrol.net/embedding-matplotlib-plot-on-pyqt5-gui.html |
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8 | # |
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9 | from matplotlib.backends.backend_qt4agg import FigureCanvasQTAgg as FigureCanvas |
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10 | from matplotlib.backends.backend_qt4agg import NavigationToolbar2QT as NavigationToolbar |
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11 | |
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12 | import matplotlib.pyplot as plt |
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13 | |
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14 | DEFAULT_CMAP = pylab.cm.jet |
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15 | from sas.qtgui.ScaleProperties import ScaleProperties |
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16 | import sas.qtgui.PlotUtilities as PlotUtilities |
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17 | import sas.qtgui.PlotHelper as PlotHelper |
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18 | |
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19 | class PlotterBase(QtGui.QDialog): |
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20 | def __init__(self, parent=None, quickplot=False): |
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21 | super(PlotterBase, self).__init__(parent) |
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22 | |
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23 | # Required for the communicator |
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24 | self.parent = parent |
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25 | self.quickplot = quickplot |
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26 | |
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27 | # a figure instance to plot on |
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28 | self.figure = plt.figure() |
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29 | |
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30 | # this is the Canvas Widget that displays the `figure` |
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31 | # it takes the `figure` instance as a parameter to __init__ |
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32 | self.canvas = FigureCanvas(self.figure) |
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33 | |
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34 | # this is the Navigation widget |
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35 | # it takes the Canvas widget and a parent |
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36 | self.toolbar = NavigationToolbar(self.canvas, self) |
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37 | |
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38 | self.properties = ScaleProperties(self) |
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39 | |
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40 | # set the layout |
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41 | layout = QtGui.QVBoxLayout() |
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42 | layout.setMargin(0) |
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43 | layout.addWidget(self.canvas) |
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44 | |
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45 | # defaults |
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46 | self.current_plot = 111 |
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47 | self._data = [] # Original 1D/2D object |
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48 | self._xscale = 'log' |
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49 | self._yscale = 'log' |
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50 | self.qx_data = [] |
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51 | self.qy_data = [] |
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52 | self.color=0 |
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53 | self.symbol=0 |
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54 | self.dimension=1 |
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55 | self.grid_on = False |
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56 | self.scale = 'linear' |
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57 | self.x_label = "log10(x)" |
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58 | self.y_label = "log10(y)" |
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59 | |
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60 | # default color map |
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61 | self.cmap = DEFAULT_CMAP |
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62 | |
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63 | self.ax = self.figure.add_subplot(self.current_plot) |
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64 | self.canvas.figure.set_facecolor('#FFFFFF') |
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65 | |
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66 | if not quickplot: |
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67 | # set the layout |
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68 | layout.addWidget(self.toolbar) |
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69 | # Notify the helper |
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70 | PlotHelper.addPlot(self) |
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71 | # Add the context menu |
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72 | self.contextMenu() |
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73 | # Notify the listeners |
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74 | self.parent.communicator.activeGraphsSignal.emit(PlotHelper.currentPlots()) |
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75 | else: |
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76 | self.contextMenuQuickPlot() |
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77 | |
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78 | self.setLayout(layout) |
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79 | |
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80 | @property |
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81 | def data(self): |
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82 | return self._data |
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83 | |
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84 | @data.setter |
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85 | def data(self, data=None): |
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86 | """ virtual data setter """ |
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87 | raise ImportError("Data setter must be implemented in derived class.") |
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88 | |
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89 | def title(self, title=""): |
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90 | """ title setter """ |
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91 | self._title = title |
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92 | |
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93 | #def id(self, id=""): |
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94 | # """ id setter """ |
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95 | # self.id = id |
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96 | |
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97 | @property |
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98 | def xLabel(self, xlabel=""): |
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99 | """ x-label setter """ |
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100 | return self.x_label |
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101 | |
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102 | @xLabel.setter |
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103 | def xLabel(self, xlabel=""): |
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104 | """ x-label setter """ |
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105 | self.x_label = r'$%s$'% xlabel |
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106 | |
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107 | @property |
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108 | def yLabel(self, ylabel=""): |
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109 | """ y-label setter """ |
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110 | return self.y_label |
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111 | |
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112 | @yLabel.setter |
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113 | def yLabel(self, ylabel=""): |
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114 | """ y-label setter """ |
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115 | self.y_label = r'$%s$'% ylabel |
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116 | |
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117 | @property |
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118 | def yscale(self): |
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119 | """ Y-axis scale getter """ |
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120 | return self._yscale |
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121 | |
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122 | @yscale.setter |
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123 | def yscale(self, scale='linear'): |
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124 | """ Y-axis scale setter """ |
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125 | self.ax.set_yscale(scale, nonposy='clip') |
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126 | self._yscale = scale |
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127 | |
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128 | @property |
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129 | def xscale(self): |
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130 | """ X-axis scale getter """ |
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131 | return self._xscale |
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132 | |
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133 | @xscale.setter |
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134 | def xscale(self, scale='linear'): |
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135 | """ X-axis scale setter """ |
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136 | self.ax.set_xscale(scale) |
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137 | self._xscale = scale |
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138 | |
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139 | def contextMenu(self): |
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140 | """ |
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141 | Define context menu and associated actions for the MPL widget |
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142 | """ |
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143 | # Actions |
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144 | self.contextMenu = QtGui.QMenu(self) |
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145 | self.actionSaveImage = self.contextMenu.addAction("Save Image") |
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146 | self.actionPrintImage = self.contextMenu.addAction("Print Image") |
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147 | self.actionCopyToClipboard = self.contextMenu.addAction("Copy to Clipboard") |
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148 | self.contextMenu.addSeparator() |
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149 | |
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150 | # Define the callbacks |
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151 | self.actionSaveImage.triggered.connect(self.onImageSave) |
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152 | self.actionPrintImage.triggered.connect(self.onImagePrint) |
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153 | self.actionCopyToClipboard.triggered.connect(self.onClipboardCopy) |
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154 | |
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155 | def contextMenuQuickPlot(self): |
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156 | """ |
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157 | Define context menu and associated actions for the quickplot MPL widget |
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158 | """ |
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159 | raise ImportError("Context menu method must be implemented in derived class.") |
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160 | |
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161 | def contextMenuEvent(self, event): |
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162 | """ |
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163 | Display the context menu |
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164 | """ |
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165 | self.contextMenu.exec_( self.canvas.mapToGlobal(event.pos()) ) |
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166 | |
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167 | def clean(self): |
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168 | """ |
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169 | Redraw the graph |
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170 | """ |
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171 | self.figure.delaxes(self.ax) |
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172 | self.ax = self.figure.add_subplot(self.current_plot) |
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173 | |
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174 | def plot(self, marker=None, linestyle=None): |
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175 | """ |
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176 | VIRTUAL |
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177 | Plot the content of self._data |
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178 | """ |
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179 | raise ImportError("Plot method must be implemented in derived class.") |
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180 | |
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181 | def closeEvent(self, event): |
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182 | """ |
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183 | Overwrite the close event adding helper notification |
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184 | """ |
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185 | # Please remove me from your database. |
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186 | PlotHelper.deletePlot(PlotHelper.idOfPlot(self)) |
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187 | # Notify the listeners |
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188 | self.parent.communicator.activeGraphsSignal.emit(PlotHelper.currentPlots()) |
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189 | event.accept() |
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190 | |
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191 | def onImageSave(self): |
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192 | """ |
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193 | Use the internal MPL method for saving to file |
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194 | """ |
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195 | self.toolbar.save_figure() |
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196 | |
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197 | def onImagePrint(self): |
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198 | """ |
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199 | Display printer dialog and print the MPL widget area |
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200 | """ |
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201 | # Define the printer |
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202 | printer = QtGui.QPrinter() |
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203 | |
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204 | # Display the print dialog |
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205 | dialog = QtGui.QPrintDialog(printer) |
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206 | dialog.setModal(True) |
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207 | dialog.setWindowTitle("Print") |
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208 | if(dialog.exec_() != QtGui.QDialog.Accepted): |
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209 | return |
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210 | |
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211 | painter = QtGui.QPainter(printer) |
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212 | # Create a label with pixmap drawn |
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213 | pmap = QtGui.QPixmap.grabWidget(self) |
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214 | printLabel = QtGui.QLabel() |
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215 | printLabel.setPixmap(pmap) |
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216 | |
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217 | # Print the label |
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218 | printLabel.render(painter) |
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219 | painter.end() |
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220 | |
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221 | def onClipboardCopy(self): |
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222 | """ |
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223 | Copy MPL widget area to buffer |
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224 | """ |
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225 | bmp = QtGui.QApplication.clipboard() |
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226 | pixmap = QtGui.QPixmap.grabWidget(self.canvas) |
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227 | bmp.setPixmap(pixmap) |
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228 | |
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229 | def onGridToggle(self): |
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230 | """ |
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231 | Add/remove grid lines from MPL plot |
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232 | """ |
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233 | self.grid_on = (not self.grid_on) |
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234 | self.ax.grid(self.grid_on) |
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235 | self.canvas.draw_idle() |
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