1 | |
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2 | |
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3 | import os |
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4 | import sys |
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5 | import wx |
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6 | import numpy as np |
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7 | import matplotlib |
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8 | matplotlib.interactive(False) |
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9 | #Use the WxAgg back end. The Wx one takes too long to render |
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10 | matplotlib.use('WXAgg') |
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11 | from sas.sasgui.guiframe.local_perspectives.plotting.SimplePlot import PlotFrame |
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12 | #import matplotlib.pyplot as plt |
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13 | import matplotlib.image as mpimg |
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14 | import matplotlib.colors as colors |
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15 | from sas.sasgui.guiframe.events import StatusEvent |
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16 | from sas.sasgui.perspectives.calculator.calculator_widgets import InputTextCtrl |
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17 | from sas.sascalc.dataloader.data_info import Data2D |
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18 | from sas.sascalc.dataloader.data_info import Detector |
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19 | from sas.sascalc.dataloader.manipulations import reader2D_converter |
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20 | from sas.sasgui.guiframe.documentation_window import DocumentationWindow |
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21 | |
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22 | _BOX_WIDTH = 60 |
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23 | IS_WIN = True |
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24 | if sys.platform.count("win32") > 0: |
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25 | _DIALOG_WIDTH = 400 |
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26 | else: |
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27 | _DIALOG_WIDTH = 480 |
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28 | IS_WIN = False |
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29 | |
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30 | class ImageView: |
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31 | """ |
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32 | Open a file dialog to allow the user to select a given file. |
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33 | Display the loaded data if available. |
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34 | """ |
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35 | def __init__(self, parent=None): |
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36 | """ |
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37 | Init |
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38 | """ |
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39 | self.parent = parent |
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40 | |
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41 | def load(self): |
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42 | """ |
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43 | load image files |
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44 | """ |
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45 | parent = self.parent |
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46 | if parent is None: |
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47 | location = os.getcwd() |
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48 | else: |
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49 | location = parent._default_save_location |
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50 | path_list = self.choose_data_file(location=location) |
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51 | if path_list is None: |
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52 | return |
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53 | if len(path_list) >= 0 and path_list[0] is not None: |
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54 | if parent is not None: |
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55 | parent._default_save_location = os.path.dirname(path_list[0]) |
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56 | err_msg = '' |
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57 | for file_path in path_list: |
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58 | basename = os.path.basename(file_path) |
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59 | _, extension = os.path.splitext(basename) |
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60 | try: |
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61 | # Note that matplotlib only reads png natively. |
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62 | # Any other formats (tiff, jpeg, etc) are passed |
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63 | # to PIL which seems to have a problem in version |
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64 | # 1.1.7 that causes a close error which shows up in |
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65 | # the log file. This does not seem to have any adverse |
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66 | # effects. PDB --- September 17, 2017. |
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67 | img = mpimg.imread(file_path) |
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68 | is_png = extension.lower() == '.png' |
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69 | plot_frame = ImageFrame(parent, -1, basename, img) |
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70 | plot_frame.Show(False) |
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71 | ax = plot_frame.plotpanel |
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72 | if not is_png: |
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73 | ax.subplot.set_ylim(ax.subplot.get_ylim()[::-1]) |
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74 | ax.subplot.set_xlabel('x [pixel]') |
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75 | ax.subplot.set_ylabel('y [pixel]') |
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76 | ax.figure.subplots_adjust(left=0.15, bottom=0.1, |
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77 | right=0.95, top=0.95) |
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78 | plot_frame.SetTitle('Picture -- %s --' % basename) |
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79 | plot_frame.Show(True) |
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80 | if parent is not None: |
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81 | parent.put_icon(plot_frame) |
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82 | except: |
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83 | err_msg += "Failed to load '%s'.\n" % basename |
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84 | if err_msg: |
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85 | if parent is not None: |
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86 | wx.PostEvent(parent, StatusEvent(status=err_msg, info="error")) |
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87 | else: |
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88 | print(err_msg) |
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89 | |
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90 | def choose_data_file(self, location=None): |
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91 | """ |
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92 | Open a file dialog to allow loading a file |
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93 | """ |
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94 | path = None |
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95 | if location is None: |
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96 | location = os.getcwd() |
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97 | wildcard="Images (*.bmp;*.gif;*jpeg,*jpg;*.png;*tif;*.tiff)|*bmp;\ |
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98 | *.gif; *.jpg; *.jpeg;*png;*.png;*.tif;*.tiff|"\ |
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99 | "Bitmap (*.bmp)|*.bmp|"\ |
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100 | "GIF (*.gif)|*.gif|"\ |
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101 | "JPEG (*.jpg;*.jpeg)|*.jpg;*.jpeg|"\ |
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102 | "PNG (*.png)|*.png|"\ |
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103 | "TIFF (*.tif;*.tiff)|*.tif;*tiff|"\ |
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104 | "All Files (*.*)|*.*|" |
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105 | |
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106 | dlg = wx.FileDialog(self.parent, "Image Viewer: Choose an image file", |
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107 | location, "", wildcard, style=wx.FD_OPEN |
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108 | | wx.FD_MULTIPLE) |
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109 | if dlg.ShowModal() == wx.ID_OK: |
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110 | path = dlg.GetPaths() |
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111 | else: |
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112 | return None |
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113 | dlg.Destroy() |
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114 | return path |
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115 | |
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116 | class ImageFrame(PlotFrame): |
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117 | """ |
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118 | Frame for simple plot |
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119 | """ |
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120 | def __init__(self, parent, id, title, image=None, scale='log_{10}', |
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121 | size=wx.Size(550, 470)): |
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122 | """ |
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123 | comment |
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124 | :Param data: image array got from imread() of matplotlib [narray] |
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125 | :param parent: parent panel/container |
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126 | """ |
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127 | # Initialize the Frame object |
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128 | PlotFrame.__init__(self, parent, id, title, scale, size, |
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129 | show_menu_icons=False) |
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130 | self.parent = parent |
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131 | self.data = image |
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132 | self.file_name = title |
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133 | |
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134 | menu = wx.Menu() |
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135 | id = wx.NewId() |
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136 | item = wx.MenuItem(menu, id, "&Convert to Data") |
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137 | menu.AppendItem(item) |
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138 | wx.EVT_MENU(self, id, self.on_set_data) |
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139 | self.menu_bar.Append(menu, "&Image") |
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140 | |
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141 | menu_help = wx.Menu() |
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142 | id = wx.NewId() |
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143 | item = wx.MenuItem(menu_help, id, "&HowTo") |
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144 | menu_help.AppendItem(item) |
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145 | wx.EVT_MENU(self, id, self.on_help) |
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146 | self.menu_bar.Append(menu_help, "&Help") |
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147 | |
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148 | self.SetMenuBar(self.menu_bar) |
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149 | self.im_show(image) |
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150 | |
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151 | def on_set_data(self, event): |
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152 | """ |
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153 | Rescale the x y range, make 2D data and send it to data explore |
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154 | """ |
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155 | title = self.file_name |
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156 | self.panel = SetDialog(parent=self, title=title, image=self.data) |
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157 | self.panel.ShowModal() |
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158 | |
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159 | def on_help(self, event): |
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160 | """ |
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161 | Bring up Image Viewer Documentation from the image viewer window |
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162 | whenever the help menu item "how to" is clicked. Calls |
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163 | DocumentationWindow with the path of the location within the |
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164 | documentation tree (after /doc/ ....". |
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165 | |
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166 | :param evt: Triggers on clicking "how to" in help menu |
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167 | """ |
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168 | |
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169 | _TreeLocation = "user/sasgui/perspectives/calculator/" |
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170 | _TreeLocation += "image_viewer_help.html" |
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171 | _doc_viewer = DocumentationWindow(self, -1, _TreeLocation, "", |
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172 | "Image Viewer Help") |
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173 | |
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174 | |
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175 | class SetDialog(wx.Dialog): |
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176 | """ |
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177 | Dialog for Data Set |
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178 | """ |
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179 | def __init__(self, parent, id= -1, title="Convert to Data", image=None, |
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180 | size=(_DIALOG_WIDTH, 270)): |
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181 | wx.Dialog.__init__(self, parent, id, title, size) |
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182 | # parent |
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183 | self.parent = parent |
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184 | self.base = parent.parent |
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185 | self.title = title |
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186 | self.image = np.array(image) |
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187 | self.z_ctrl = None |
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188 | self.xy_ctrls = [] |
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189 | self.is_png = self._get_is_png() |
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190 | self._build_layout() |
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191 | my_title = "Convert Image to Data - %s -" % self.title |
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192 | self.SetTitle(my_title) |
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193 | self.SetSize(size) |
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194 | |
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195 | def _get_is_png(self): |
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196 | """ |
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197 | Get if the image file is png |
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198 | """ |
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199 | _, extension = os.path.splitext(self.title) |
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200 | return extension.lower() == '.png' |
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201 | |
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202 | def _build_layout(self): |
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203 | """ |
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204 | Layout |
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205 | """ |
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206 | vbox = wx.BoxSizer(wx.VERTICAL) |
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207 | zbox = wx.BoxSizer(wx.HORIZONTAL) |
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208 | xbox = wx.BoxSizer(wx.HORIZONTAL) |
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209 | ybox = wx.BoxSizer(wx.HORIZONTAL) |
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210 | btnbox = wx.BoxSizer(wx.VERTICAL) |
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211 | |
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212 | sb_title = wx.StaticBox(self, -1, 'Transform Axes') |
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213 | boxsizer = wx.StaticBoxSizer(sb_title, wx.VERTICAL) |
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214 | z_title = wx.StaticText(self, -1, 'z values (range: 0 - 255) to:') |
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215 | ztime_title = wx.StaticText(self, -1, 'z *') |
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216 | x_title = wx.StaticText(self, -1, 'x values from pixel # to:') |
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217 | xmin_title = wx.StaticText(self, -1, 'xmin:') |
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218 | xmax_title = wx.StaticText(self, -1, 'xmax:') |
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219 | y_title = wx.StaticText(self, -1, 'y values from pixel # to:') |
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220 | ymin_title = wx.StaticText(self, -1, 'ymin: ') |
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221 | ymax_title = wx.StaticText(self, -1, 'ymax:') |
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222 | z_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH , 20), |
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223 | style=wx.TE_PROCESS_ENTER) |
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224 | |
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225 | xmin_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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226 | style=wx.TE_PROCESS_ENTER) |
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227 | xmax_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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228 | style=wx.TE_PROCESS_ENTER) |
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229 | ymin_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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230 | style=wx.TE_PROCESS_ENTER) |
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231 | ymax_ctl = InputTextCtrl(self, -1, size=(_BOX_WIDTH, 20), |
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232 | style=wx.TE_PROCESS_ENTER) |
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233 | z_ctl.SetValue('1.0') |
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234 | xmin_ctl.SetValue('-0.3') |
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235 | xmax_ctl.SetValue('0.3') |
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236 | ymin_ctl.SetValue('-0.3') |
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237 | ymax_ctl.SetValue('0.3') |
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238 | z_ctl.Bind(wx.EVT_TEXT, self._on_z_enter) |
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239 | xmin_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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240 | xmax_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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241 | ymin_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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242 | ymax_ctl.Bind(wx.EVT_TEXT, self._onparam) |
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243 | xbox.AddMany([(x_title , 0, wx.LEFT, 0), |
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244 | (xmin_title , 0, wx.LEFT, 10), |
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245 | (xmin_ctl , 0, wx.LEFT, 10), |
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246 | (xmax_title , 0, wx.LEFT, 10), |
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247 | (xmax_ctl , 0, wx.LEFT, 10)]) |
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248 | ybox.AddMany([(y_title , 0, wx.LEFT, 0), |
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249 | (ymin_title , 0, wx.LEFT, 10), |
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250 | (ymin_ctl , 0, wx.LEFT, 10), |
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251 | (ymax_title , 0, wx.LEFT, 10), |
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252 | (ymax_ctl , 0, wx.LEFT, 10)]) |
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253 | zbox.AddMany([(z_title , 0, wx.LEFT, 0), |
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254 | (ztime_title, 0, wx.LEFT, 10), |
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255 | (z_ctl , 0, wx.LEFT, 7), |
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256 | ]) |
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257 | msg = "The data rescaled will show up in the Data Explorer. \n" |
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258 | msg += "*Note: Recommend to use an image with 8 bit Grey \n" |
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259 | msg += " scale (and with No. of pixels < 300 x 300).\n" |
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260 | msg += " Otherwise, z = 0.299R + 0.587G + 0.114B." |
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261 | note_txt = wx.StaticText(self, -1, msg) |
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262 | note_txt.SetForegroundColour("black") |
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263 | hbox = wx.BoxSizer(wx.HORIZONTAL) |
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264 | okButton = wx.Button(self, -1, 'OK') |
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265 | okButton.Bind(wx.EVT_BUTTON, self.on_set) |
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266 | cancelButton = wx.Button(self, -1, 'Cancel') |
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267 | cancelButton.Bind(wx.EVT_BUTTON, self.OnClose) |
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268 | btnbox.Add(okButton, 0, wx.LEFT | wx.BOTTOM, 5) |
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269 | btnbox.Add(cancelButton, 0, wx.LEFT | wx.TOP, 5) |
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270 | hbox.Add(note_txt, 0, wx.LEFT, 5) |
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271 | hbox.Add(btnbox, 0, wx.LEFT, 15) |
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272 | vbox.Add((10, 15)) |
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273 | boxsizer.Add(xbox, 1, wx.LEFT | wx.BOTTOM, 5) |
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274 | boxsizer.Add(ybox, 1, wx.LEFT | wx.BOTTOM, 5) |
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275 | boxsizer.Add(zbox, 1, wx.LEFT | wx.BOTTOM, 5) |
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276 | vbox.Add(boxsizer, 0, wx.LEFT, 20) |
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277 | vbox.Add(hbox, 0, wx.LEFT | wx.TOP, 15) |
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278 | okButton.SetFocus() |
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279 | # set sizer |
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280 | self.SetSizer(vbox) |
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281 | #pos = self.parent.GetPosition() |
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282 | #self.SetPosition(pos) |
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283 | self.z_ctrl = z_ctl |
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284 | self.xy_ctrls = [[xmin_ctl, xmax_ctl], [ymin_ctl, ymax_ctl]] |
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285 | |
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286 | def _onparamEnter(self, event=None): |
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287 | """ |
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288 | By pass original txtcrl binding |
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289 | """ |
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290 | pass |
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291 | |
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292 | def _onparam(self, event=None): |
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293 | """ |
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294 | Set to default |
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295 | """ |
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296 | item = event.GetEventObject() |
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297 | self._check_ctrls(item) |
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298 | |
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299 | def _check_ctrls(self, item, is_button=False): |
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300 | """ |
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301 | """ |
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302 | flag = True |
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303 | item.SetBackgroundColour("white") |
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304 | try: |
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305 | val = float(item.GetValue()) |
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306 | if val < -10.0 or val > 10.0: |
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307 | item.SetBackgroundColour("pink") |
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308 | item.Refresh() |
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309 | flag = False |
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310 | except: |
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311 | item.SetBackgroundColour("pink") |
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312 | item.Refresh() |
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313 | flag = False |
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314 | if not flag and is_button: |
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315 | err_msg = "The allowed range of the min and max values are \n" |
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316 | err_msg += "between -10 and 10." |
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317 | if self.base is not None: |
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318 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
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319 | info="error")) |
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320 | else: |
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321 | print(err_msg) |
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322 | return flag |
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323 | |
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324 | def _on_z_enter(self, event=None): |
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325 | """ |
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326 | On z factor enter |
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327 | """ |
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328 | item = event.GetEventObject() |
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329 | self._check_z_ctrl(item) |
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330 | |
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331 | def _check_z_ctrl(self, item, is_button=False): |
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332 | """ |
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333 | """ |
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334 | flag = True |
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335 | item.SetBackgroundColour("white") |
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336 | try: |
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337 | val = float(item.GetValue()) |
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338 | if val <= 0: |
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339 | item.SetBackgroundColour("pink") |
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340 | item.Refresh() |
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341 | flag = False |
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342 | except: |
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343 | item.SetBackgroundColour("pink") |
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344 | item.Refresh() |
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345 | flag = False |
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346 | if not flag and is_button: |
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347 | err_msg = "The z scale value should be larger than 0." |
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348 | if self.base is not None: |
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349 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
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350 | info="error")) |
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351 | else: |
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352 | print(err_msg) |
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353 | return flag |
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354 | |
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355 | def on_set(self, event): |
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356 | """ |
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357 | Set image as data |
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358 | """ |
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359 | event.Skip() |
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360 | # Check the textctrl values |
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361 | for item_list in self.xy_ctrls: |
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362 | for item in item_list: |
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363 | if not self._check_ctrls(item, True): |
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364 | return |
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365 | if not self._check_z_ctrl(self.z_ctrl, True): |
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366 | return |
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367 | try: |
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368 | image = self.image |
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369 | xmin = float(self.xy_ctrls[0][0].GetValue()) |
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370 | xmax = float(self.xy_ctrls[0][1].GetValue()) |
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371 | ymin = float(self.xy_ctrls[1][0].GetValue()) |
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372 | ymax = float(self.xy_ctrls[1][1].GetValue()) |
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373 | zscale = float(self.z_ctrl.GetValue()) |
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374 | self.convert_image(image, xmin, xmax, ymin, ymax, zscale) |
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375 | except: |
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376 | err_msg = "Error occurred while converting Image to Data." |
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377 | if self.base is not None: |
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378 | wx.PostEvent(self.base, StatusEvent(status=err_msg, |
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379 | info="error")) |
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380 | else: |
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381 | print(err_msg) |
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382 | |
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383 | self.OnClose(event) |
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384 | |
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385 | def convert_image(self, rgb, xmin, xmax, ymin, ymax, zscale): |
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386 | """ |
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387 | Convert image to data2D |
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388 | """ |
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389 | x_len = len(rgb[0]) |
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390 | y_len = len(rgb) |
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391 | x_vals = np.linspace(xmin, xmax, num=x_len) |
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392 | y_vals = np.linspace(ymin, ymax, num=y_len) |
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393 | # Instantiate data object |
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394 | output = Data2D() |
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395 | output.filename = os.path.basename(self.title) |
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396 | output.id = output.filename |
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397 | detector = Detector() |
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398 | detector.pixel_size.x = None |
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399 | detector.pixel_size.y = None |
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400 | # Store the sample to detector distance |
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401 | detector.distance = None |
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402 | output.detector.append(detector) |
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403 | # Initiazed the output data object |
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404 | output.data = zscale * self.rgb2gray(rgb) |
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405 | output.err_data = np.zeros([x_len, y_len]) |
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406 | output.mask = np.ones([x_len, y_len], dtype=bool) |
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407 | output.xbins = x_len |
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408 | output.ybins = y_len |
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409 | output.x_bins = x_vals |
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410 | output.y_bins = y_vals |
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411 | output.qx_data = np.array(x_vals) |
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412 | output.qy_data = np.array(y_vals) |
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413 | output.xmin = xmin |
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414 | output.xmax = xmax |
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415 | output.ymin = ymin |
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416 | output.ymax = ymax |
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417 | output.xaxis('\\rm{Q_{x}}', '\AA^{-1}') |
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418 | output.yaxis('\\rm{Q_{y}}', '\AA^{-1}') |
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419 | # Store loading process information |
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420 | output.meta_data['loader'] = self.title.split('.')[-1] + "Reader" |
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421 | output.is_data = True |
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422 | output = reader2D_converter(output) |
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423 | if self.base is not None: |
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424 | data = self.base.create_gui_data(output, self.title) |
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425 | self.base.add_data({data.id:data}) |
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426 | |
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427 | def rgb2gray(self, rgb): |
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428 | """ |
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429 | RGB to Grey |
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430 | """ |
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431 | if self.is_png: |
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432 | # png image limits: 0 to 1, others 0 to 255 |
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433 | #factor = 255.0 |
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434 | rgb = rgb[::-1] |
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435 | if rgb.ndim == 2: |
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436 | grey = np.rollaxis(rgb, axis=0) |
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437 | else: |
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438 | red, green, blue = np.rollaxis(rgb[..., :3], axis= -1) |
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439 | grey = 0.299 * red + 0.587 * green + 0.114 * blue |
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440 | max_i = rgb.max() |
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441 | factor = 255.0 / max_i |
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442 | grey *= factor |
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443 | return np.array(grey) |
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444 | |
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445 | def OnClose(self, event): |
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446 | """ |
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447 | Close event |
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448 | """ |
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449 | # clear event |
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450 | event.Skip() |
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451 | self.Destroy() |
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452 | |
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453 | if __name__ == "__main__": |
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454 | app = wx.App() |
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455 | ImageView(None).load() |
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456 | app.MainLoop() |
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