added first validators

array2xls/__init__.py

@@ -2,8 +2,7 @@ import tkinter as tk
 
 import gui
 
-
-if __name__ == '__main__':
+def run():
     root = tk.Tk()
     app = gui.Application(master=root)
     app.mainloop()
@@ -11,3 +10,6 @@ if __name__ == '__main__':
         root.destroy()
     except tk.TclError:
         pass
+
+if __name__ == '__main__':
+    run()

array2xls/gui.py

@@ -1,46 +1,145 @@
 import tkinter as tk
+import tkinter.ttk as ttk
+from tkinter import filedialog
 
+import validators
 
-class StatusBar(tk.Frame):
+class StatusPanel(tk.Frame):
 
-    def __init__(self, master):
-        tk.Frame.__init__(self, master)
-        self.label = tk.Label(self, bd=1, relief=tk.SUNKEN, anchor=tk.SW)
+    def __init__(self, parent):
+        tk.Frame.__init__(self, parent.master)
+        self._parent = parent
+        self.label = tk.Label(self, bd=1, relief=tk.SUNKEN, anchor=tk.S)
         self.label.pack(fill=tk.X)
         self.pack(side=tk.BOTTOM, fill=tk.X)
 
-    def set(self, text):
+    def set_text(self, text):
         self.label.config(text=text)
         self.label.update_idletasks()
 
-    def clear(self):
-        self.label.config(text="")
+    def clear_text(self):
+        self.set_text('')
+
+
+class FilePanel(tk.Frame):
+
+    def __init__(self, parent):
+        tk.Frame.__init__(self, parent.master)
+        self._parent = parent
+        self.btn_files = tk.Button(self, text="Select Files", command=self._parent.select_files)
+        self.btn_files.pack(pady=5, padx=5)
+        self.label = tk.Label(self, anchor=tk.SW)
+        self.label.pack(fill=tk.X, pady=5, padx=5)
+        ttk.Separator(self, orient=tk.HORIZONTAL).pack(side=tk.BOTTOM, fill=tk.X)
+        self.pack(side=tk.TOP, fill=tk.X)
+
+    def set_text(self, text):
+        self.label.config(text=text)
         self.label.update_idletasks()
 
+    def clear_text(self):
+        self.set_text('')
+
+
+class FieldPanel(tk.Frame):
+
+    def __init__(self, parent):
+        tk.Frame.__init__(self, parent.master)
+        self._parent = parent
+        self.is_single = tk.BooleanVar()
+        self.is_single.set(True)
+        self.rbtn_single = tk.Radiobutton(self, text='single excel files', variable=self.is_single, value=True, command=self.disable_listbox)
+        self.rbtn_combine = tk.Radiobutton(self, text='one combined excel file', variable=self.is_single, value=False, command=self.enable_listbox)
+        self.rbtn_single.pack(anchor=tk.W)
+        self.rbtn_combine.pack(anchor=tk.W)
+        self.listbox = tk.Listbox(self, selectmode=tk.MULTIPLE, activestyle='none')
+        self.listbox.pack(fill=tk.X, ipady=5, ipadx=5)
+        self.listbox.insert(0, "HELLO")
+        self.pack(side=tk.TOP, fill=tk.X)
+
+    def disable_radio_btn(self):
+        self.rbtn_single.config(state="disabled")
+        self.rbtn_combine.config(state="disabled")
+
+    def disable_listbox(self):
+        self.listbox.config(state="disabled")
+
+    def disable(self):
+        self.disable_listbox()
+        self.disable_radio_btn()
+
+    def enable_radio_btn(self):
+        self.rbtn_single.config(state="normal")
+        self.rbtn_combine.config(state="normal")
+        self.is_single.set(True)
+
+    def enable_listbox(self):
+        self.listbox.config(state="normal")
+
+    def enable(self):
+        self.enable_listbox()
+        self.enable_radio_btn()
+
+
+class ActionPanel(tk.Frame):
+
+    def __init__(self, parent):
+        tk.Frame.__init__(self, parent.master)
+        self._parent = parent
+        self.btn_go = tk.Button(self, text="GO!", command=self._parent.quit)
+        self.btn_go.pack(side=tk.LEFT, pady=5, padx=5)
+        self.btn_quit = tk.Button(self, text="Quit", command=self._parent.quit)
+        self.btn_quit.pack(side=tk.RIGHT, pady=5, padx=5)
+        self.pack(side=tk.BOTTOM, fill=tk.X)
+
+    def disable(self):
+        self.btn_go.config(state='disabled')
+
+    def enable(self):
+        self.btn_go.config(state='active')
+
 
 class Application(tk.Frame):
 
     def __init__(self, master):
-        #master.geometry("500x500")
-        master.minsize(height=100, width=100)
+        master.minsize(height=330, width=200)
         tk.Frame.__init__(self, master)
+        self._master = master
         self.pack(fill=tk.BOTH)
-        self.status = StatusBar(self.master)
-        self.create_widgets()
+        self.status_panel = StatusPanel(self)
+        self.file_panel = FilePanel(self)
+        self.field_panel = FieldPanel(self)
+        self.action_panel = ActionPanel(self)
+        self.reset()
 
-    def create_widgets(self):
-        self.btn_files = tk.Button(self, text="Select Files", command=self.selected_files)
-        self.btn_files.pack(side=tk.LEFT, pady=5, padx=5)
-        self.btn_quit = tk.Button(self, text="Quit", command=self.quit)
-        self.btn_quit.pack(side=tk.RIGHT, pady=5, padx=5)
+    def reset(self):
+        self.field_panel.disable()
+        self.action_panel.disable()
+        self.file_validator = None
+        self.validated_files = None
 
-    def selected_files(self):
+    def select_files(self):
+        self.reset()
+        self.file_panel.clear_text()
         opts = {
             'initialdir': '~',
-            'filetypes': [('text files', '.txt'), ('python files', '.py')],
+            'filetypes': [('Signalyse Statistics', '.stx'), ('Signalyse Data', '.dat'), ('Sensovation Data', '.csv')],
             'multiple': True}
-        result = tk.filedialog.askopenfilename(**opts)
-        print(type(result), ':', result)
+        file_selection = tk.filedialog.askopenfilename(**opts)
+        if not isinstance(file_selection, tuple) or len(file_selection) == 0:
+            return
+        self.file_validator = validators.guess_validator(file_selection)
+        if self.file_validator is None:
+            return
+        self.validated_files = [f for f in validators.validate_files(file_selection, self.file_validator)]
+        status = '%d of %d valid %s files found' % (len(self.validated_files), len(file_selection), self.file_validator.type)
+        self.file_panel.set_text(status)
+        if len(self.validated_files) == 0:
+            self.reset()
+            return
+        self.field_panel.enable_radio_btn()
 
 
 
+    def quit(self):
+        self._master.destroy()

array2xls/validators.py

@@ -0,0 +1,67 @@
+import os
+
+from collections import namedtuple
+
+class ValidationError(ValueError):
+    pass
+
+Validator = namedtuple('Validator', 'type validate extension')
+DataFile = namedtuple('DataFile', 'path separator')
+
+def validate_stx(lines):
+    iterator = iter(lines)
+    line = next(iterator)
+    if not line.startswith('Report_Format\t2'):
+        raise ValidationError('1 Unsupported File;' + line)
+    for line in iterator:
+        if line.startswith('Probe_Name\t'):
+            break
+    else:
+        raise ValidationError('1 Unsupported File')
+    for line in iterator:
+        probe_name, rest = line.split('\t', 1)
+        separator = ',' if rest.count(',') > rest.count('.') else '.'
+        return separator
+    else:
+        raise ValidationError('No Data Present')
+
+
+def validate_dat(lines):
+    iterator = iter(lines)
+    if not next(iterator).startswith('Report_Format\t2'):
+        raise ValidationError('Unsupported File')
+    for line in iterator:
+        if line.startswith('Dot_Number\t'):
+            break
+    else:
+        raise ValidationError('Unsupported File')
+    for line in iterator:
+        probe_name, rest = line.split('\t', 3)
+        separator = ',' if rest.count(',') > rest.count('.') else '.'
+        return separator
+    else:
+        raise ValidationError('No Data Present')
+
+def validate_csv(lines):
+    pass
+
+validation_map = {
+    '.stx': Validator('Signalyse Statistic Files', validate_stx, '.stx'),
+    '.dat': Validator('Signalyse Data Files', validate_dat, '.dat'),
+    '.csv': Validator('Sensovation Data Files', validate_csv, '.csv')
+}
+
+def guess_validator(unvalidated):
+    # get the validation method by examining the first file
+    _, extension = os.path.splitext(unvalidated[0])
+    return validation_map.get(extension, None)
+
+def validate_files(unvalidated, selected_validator):
+    # get the validation method by examining the first file
+    for file_path in unvalidated:
+        try:
+            with open(file_path, mode='r', encoding='utf-8') as file_handle:
+                separator = selected_validator.validate(file_handle)
+                yield DataFile(file_path, separator)
+        except (IOError, UnicodeError, ValidationError) as e:
+            print(e)