def _make_resizing(self):
"""
converts width, height values \\
calls subservient resizing functions
"""
file_names = self.lstbox.get(0, tk.END)
if not file_names: return
try:
width = int(self.width_entry.variable)
except ValueError:
width = None
try:
height = int(self.height_entry.variable)
except ValueError:
height = None
filetype = 'PNG' if self.bs_file_type.variable else 'JPEG'
if self.bs_sizes.variable == True:
MergerScripts.resize_percents(file_names, self.direntry.variable,
width, height, filetype)
else:
MergerScripts.resize_pixels(file_names, self.direntry.variable,
width, height, filetype)
def _make_concatenation(self):
"""
depending on activated flags different combination of scripts is called
"""
file_names = self.lstbox.get(0, tk.END)
if len(file_names) < 2: return
image_list = [Image.open(e) for e in file_names]
if self.bs_resize.variable:
if self.bs_concat.variable:
max_width = MergerScripts.find_max_width(image_list)
image_list = MergerScripts.resize_all_tomax(image_list,
max_width,
Image,
is_vertical=True)
else:
max_height = MergerScripts.find_max_height(image_list)
image_list = MergerScripts.resize_all_tomax(image_list,
max_height,
Image,
is_vertical=False)
if self.bs_concat.variable:
result_image = MergerScripts.concatenate_v(image_list,
self.bg_color, Image)
else:
result_image = MergerScripts.concatenate_h(image_list,
self.bg_color, Image)
_path = self.direntry.variable
_path = MergerScripts.make_default_concatenation_path(_path)
self.direntry.variable = _path
result_image.save(f'{self.direntry.variable}', 'PNG')
def _find_widthheight(self):
"""
runs through selected image list, \\
returns width and height in pixels
"""
self.bs_sizes.variable = False
self.bs_sizes.strv.variable = self.bs_sizes.falsestr
file_names = self.lstbox.get(0, tk.END)
if not file_names:
self.width_entry.variable = 'none'
self.height_entry.variable = 'none'
return
image_list = [Image.open(e) for e in file_names]
if self.bs_maxmin.variable:
self.width_entry.variable = MergerScripts.find_max_width(
image_list)
self.height_entry.variable = MergerScripts.find_max_height(
image_list)
else:
self.width_entry.variable = MergerScripts.find_min_width(
image_list)
self.height_entry.variable = MergerScripts.find_min_height(
image_list)
def _call_askdir(self):
"""
returns *.png string for a Concatenation tab
"""
_path = askdirectory()
if _path:
if self.current_active_tab == 0:
_path = ['\\' if e == '/' else e for e in _path]
_path.append('\\')
_path = MergerScripts.make_default_concatenation_path(
''.join(_path))
self.direntry.variable = _path
elif self.current_active_tab == 1:
_path = ['\\' if e == '/' else e for e in _path]
_path.append('\\')
_path = ''.join(_path)
self.direntry.variable = _path
def test_change_folder_strip_ext(self):
tested_list = ['D:/images/resized1.png', 'D:/images/resized2.jpg']
expected = ['G:/my_images/resized1', 'G:/my_images/resized2']
actual = MergerScripts.change_folder_strip_ext(tested_list,
'G:/my_images/')
assert expected == actual
class ImageMerger():
bg_color = '#ffffff'
folder = MergerScripts.find_folderpath(sys.argv[0])
# in this list string value for "output path variable" is stored
# if you click another tab, path changes
output_entry_values = list()
output_entry_values.append(
MergerScripts.make_default_concatenation_path(folder))
output_entry_values.append(folder)
current_active_tab = 0
DARK_BG = 'LightSteelBlue'
LIGHT_BG = 'AliceBlue'
def __init__(self, master):
self.master = master
self.configure_main_window()
self.tabs_panel = self.add_notebook_panel(master)
self.tabs_panel.bind("<ButtonRelease-1>", self._switch_tab_onclick)
# region "define Concatenation tab"
self.tabs_panel.concatenation_tab = self.append_tab(
self.tabs_panel, 'Concatenate')
self.tabs_panel.concatenation_tab.grid_ = self.add_grid(
self.tabs_panel.concatenation_tab, 4, 6)
self.lb_concat = self.add_label(0, 1,
self.tabs_panel.concatenation_tab,
'Concatenate Vertically')
self.bs_concat = self.add_biscale(0, 0,
self.tabs_panel.concatenation_tab,
self.lb_concat,
'Concatenate Vertically',
'Concatenate Horizontally')
self.lb_resize = self.add_label(1, 1,
self.tabs_panel.concatenation_tab,
'Resize to Max')
self.bs_resize = self.add_biscale(1, 0,
self.tabs_panel.concatenation_tab,
self.lb_resize, 'Resize to Max',
'Do not Resize')
self.colorbtn = self.add_color_btn(
self.tabs_panel.concatenation_tab.grid_[2][0])
self.lb_colorb = self.add_label(2, 1,
self.tabs_panel.concatenation_tab,
'Background Color')
# endregion
# region "define Resizing tab"
self.tabs_panel.resizing_tab = self.append_tab(self.tabs_panel,
'Resize')
self.tabs_panel.resizing_tab.grid_ = self.add_grid(
self.tabs_panel.resizing_tab, 4, 6)
self.lb_sizes = self.add_label(0, 1, self.tabs_panel.resizing_tab,
'Percent')
self.bs_sizes = self.add_biscale(0, 0, self.tabs_panel.resizing_tab,
self.lb_sizes, 'Percent', 'Pixels')
self.lb_width = tk.Label(self.tabs_panel.resizing_tab.grid_[1][0],
text='W:',
bg=self.DARK_BG,
font=('Consolas', '14', 'bold'))
self.lb_width.pack(side=tk.RIGHT, padx=3)
self.width_entry = self.add_size_entry(
self.tabs_panel.resizing_tab.grid_[1][1])
self.lb_height = tk.Label(self.tabs_panel.resizing_tab.grid_[1][2],
text='H:',
bg=self.DARK_BG,
font=('Consolas', '14', 'bold'))
self.lb_height.pack(side=tk.RIGHT, padx=3)
self.height_entry = self.add_size_entry(
self.tabs_panel.resizing_tab.grid_[1][3])
self.lb_maxmin = self.add_label(2, 1, self.tabs_panel.resizing_tab,
'maximum sizes')
self.bs_maxmin = self.add_biscale(2, 0, self.tabs_panel.resizing_tab,
self.lb_maxmin, 'maximum sizes',
'minimum sizes')
self.find_widthheight_btn = self.add_wdthgt_btn(
2, 4, self.tabs_panel.resizing_tab)
self.lb_file_type = self.add_label(3, 1, self.tabs_panel.resizing_tab,
'save as PNG')
self.bs_file_type = self.add_biscale(3, 0,
self.tabs_panel.resizing_tab,
self.lb_file_type, 'save as PNG',
'save as JPG')
# endregion
# region "define Files frame"
self.files_frame = self.add_file_frame(master)
self.files_frame.grid_ = self.add_grid(self.files_frame, 10, 6)
self.lb_files = self.add_label(0, 0, self.files_frame, 'Files:')
self.lb_files.configure(font=('Consolas', '12', 'bold'), padx=3)
self.lstbox = self.add_listbox(1, 0, self.files_frame)
self.clear_listboxbtn = self.add_clear_listbox_btn(
self.files_frame.grid_[0][3])
self.inputbtn = self.add_inputbtn(self.files_frame.grid_[0][4])
self.excludebtn = self.add_excludebtn(self.files_frame.grid_[0][5])
self.lb_outputdir = self.add_label(6, 0, self.files_frame,
'Output Path:')
self.lb_outputdir.configure(font=('Consolas', '12', 'bold'), padx=3)
self.direntry = self.add_outputdir_entry(7, 0, self.files_frame,
self.output_entry_values[0])
self.outputdir_btn = self.add_outputdir_btn(
self.files_frame.grid_[7][5])
self.outputdir_btn = self.add_process_btn(9, 2, self.files_frame)
# endregion
def _switch_tab_onclick(self, event=None):
"""
clicking tabs event calls this function
"""
tab_index = self.tabs_panel.index('current')
if tab_index != self.current_active_tab:
self.output_entry_values[
self.current_active_tab] = self.direntry.variable
self.current_active_tab = tab_index
self.direntry.variable = self.output_entry_values[tab_index]
self.lstbox.focus_force()
else:
return
def configure_main_window(self):
"""
main window properties
"""
self.master.title('ImageFiles Merger')
_icon_path = r"img/puzzle.ico"
self.master.iconbitmap(_icon_path)
self.master.geometry('320x480')
self.master.configure(bg=self.DARK_BG)
self.master.resizable(False, False)
def add_notebook_panel(self, master):
"""
placed in top side of the app
"""
nb = ttk.Notebook(master, width=304, height=124)
nb.style = ttk.Style()
nb.style.theme_create("tabs",
parent="alt",
settings={
".": {
"configure": {
"background": self.DARK_BG
}
},
"TNotebook": {
"configure": {
"tabmargins": [2, 5, 2, 0],
"borderwidth": 0
}
},
"TNotebook.Tab": {
"configure": {
"padding": [5, 1],
"background": self.DARK_BG
},
"map": {
"background":
[("selected", 'AliceBlue')],
"expand": [("selected", [1, 1, 1,
0])]
}
}
})
nb.style.theme_use("tabs")
nb.pack(expand=1)
return nb
def append_tab(self, notebook, text):
"""
creates frame, appends it as a tab
"""
frame = tk.LabelFrame(notebook, width=300, height=120, bg=self.DARK_BG)
notebook.add(frame, text=text)
return frame
def add_file_frame(self, master):
"""
file related widget placed here
"""
_frame = tk.LabelFrame(master,
width=300,
height=420,
relief=tk.FLAT,
border=1)
_frame.propagate(False)
_frame.pack(side=tk.BOTTOM, pady=8)
return _frame
def add_grid(self, master, sizex=8, sizey=8):
"""
creates a table structure on a given frame
"""
result = list()
for i in range(sizex):
result.append(list())
tk.Grid.rowconfigure(master, i, weight=0)
for j in range(sizey):
frame = tk.Frame(master, width=50, height=30, bg=self.DARK_BG)
frame.grid(row=i, column=j, sticky=tk.NSEW)
tk.Grid.columnconfigure(master, j, weight=0)
result[i].append(frame)
return result
def _call_clrchooser(self):
"""
uses tkinter.dialogs colorchooser \\
sets self.bg_color
"""
_clr = colorchooser.askcolor()
self.colorbtn.configure(background=_clr[1])
self.bg_color = _clr[1]
def add_color_btn(self, master):
"""
if "do not resize" flag is set \\
selecting concatenated image bg color is often needed
"""
_btn = tk.Button(master,
text='',
background=self.bg_color,
width=3,
height=1,
command=self._call_clrchooser)
master.propagate(False)
_btn.pack(pady=8)
return _btn
def add_biscale(self, row_index, column_index, master, lbl, truestr,
falsestr):
"""
biscale(BinaryScale) is a customized Scale \\
it acts like simple "on/off" lever for an inner variable \\
and changes related Label text by onclick event
"""
_scale = BinaryScale(master=master,
strvalue=lbl,
truestr=truestr,
falsestr=falsestr,
orient='horizontal',
from_=0,
to=1)
_scale.configure(background='Teal',
length=25,
width=8,
highlightbackground='DarkSlateBlue',
borderwidth=0,
sliderrelief=tk.FLAT,
troughcolor=self.LIGHT_BG,
sliderlength=15,
highlightthickness=2,
showvalue=0)
_scale.grid(row=row_index, column=column_index)
return _scale
def add_label(self, row_index, column_index, master, txt):
"""
just hides some simple code
"""
_label = BinaryLabel(master=master,
initialstr=txt,
background=self.DARK_BG,
font=('Consolas', '14', 'bold'))
_label.grid(row=row_index,
column=column_index,
columnspan=5,
sticky=tk.W)
return _label
def add_size_entry(self, master, txt=''):
"""
for width and height entries
"""
master.propagate(False)
_entry = MergerEntry(master=master,
initialstr=txt,
justify='right',
bg=self.LIGHT_BG)
_entry.pack(pady=3)
_entry.variable = '100'
return _entry
def _find_widthheight(self):
"""
runs through selected image list, \\
returns width and height in pixels
"""
self.bs_sizes.variable = False
self.bs_sizes.strv.variable = self.bs_sizes.falsestr
file_names = self.lstbox.get(0, tk.END)
if not file_names:
self.width_entry.variable = 'none'
self.height_entry.variable = 'none'
return
image_list = [Image.open(e) for e in file_names]
if self.bs_maxmin.variable:
self.width_entry.variable = MergerScripts.find_max_width(
image_list)
self.height_entry.variable = MergerScripts.find_max_height(
image_list)
else:
self.width_entry.variable = MergerScripts.find_min_width(
image_list)
self.height_entry.variable = MergerScripts.find_min_height(
image_list)
def add_wdthgt_btn(self, rowindex, columnindex, master):
"""
"find" button
"""
_frame = tk.Frame(master, width=75, height=30, background=self.DARK_BG)
_frame.propagate(False)
_frame.grid(row=rowindex, column=columnindex, columnspan=2)
_btn = tk.Button(_frame,
text='find',
activebackground=self.LIGHT_BG,
font=('Consolas', '14', 'bold'),
command=self._find_widthheight)
_btn.pack(padx=5, pady=3)
return _btn
def add_listbox(self, rowindex, columnindex, master):
"""
main listbox
"""
lbox = tk.Listbox(master, bg=self.LIGHT_BG, height=4)
lbox.grid(row=rowindex,
column=columnindex,
columnspan=6,
rowspan=4,
sticky=tk.NSEW)
return lbox
def _clear_listbox_files(self):
self.lstbox.delete(0, tk.END)
def add_clear_listbox_btn(self, master):
"""
"cl" clear button
"""
master.propagate(False)
_btn = tk.Button(master,
activebackground=self.LIGHT_BG,
command=self._clear_listbox_files)
_btn.img = tk.PhotoImage(file=r"img/clear.png")
_btn.configure(image=_btn.img)
_btn.pack(padx=5, pady=3)
return _btn
def _call_selectfiles(self):
"""
called by "+" button \\
calls tkinter.dialogs askopenfilenames \\
if listbox cursor is active file names should be placed after it \\
"""
_curpos = self.lstbox.curselection()
filelist = askopenfilenames(filetypes=(("image files",
"*.png *.jpg *.jpeg *.gif"), ))
if len(_curpos):
_curpos = 1 + int(_curpos[0])
for i, name in enumerate(filelist):
self.lstbox.insert(i + _curpos, name)
else:
for name in filelist:
self.lstbox.insert(tk.END, name)
def add_inputbtn(self, master):
"""
'+' sign button
"""
master.propagate(False)
_btn = tk.Button(master,
activebackground=self.LIGHT_BG,
command=self._call_selectfiles)
_btn.img = tk.PhotoImage(file=r"img/include.png")
_btn.configure(image=_btn.img)
_btn.pack(padx=5, pady=3)
return _btn
def _call_excludefile(self):
"""
called by "-" button
"""
_curpos = self.lstbox.curselection()
if len(_curpos):
self.lstbox.delete(_curpos)
def add_excludebtn(self, master):
"""
'-' sign button
"""
master.propagate(False)
_btn = tk.Button(master,
activebackground=self.LIGHT_BG,
command=self._call_excludefile)
_btn.img = tk.PhotoImage(file=r"img/exclude.png")
_btn.configure(image=_btn.img)
_btn.pack(padx=5, pady=3)
return _btn
def add_outputdir_entry(self, rowindex, columnindex, master, txt):
"""
creates tk.Entry that shows output path
"""
_entry = MergerEntry(master=master, initialstr=txt, bg=self.LIGHT_BG)
_entry.grid(row=rowindex,
column=columnindex,
columnspan=5,
sticky=tk.NSEW,
padx=3,
pady=4)
return _entry
def _call_askdir(self):
"""
returns *.png string for a Concatenation tab
"""
_path = askdirectory()
if _path:
if self.current_active_tab == 0:
_path = ['\\' if e == '/' else e for e in _path]
_path.append('\\')
_path = MergerScripts.make_default_concatenation_path(
''.join(_path))
self.direntry.variable = _path
elif self.current_active_tab == 1:
_path = ['\\' if e == '/' else e for e in _path]
_path.append('\\')
_path = ''.join(_path)
self.direntry.variable = _path
def add_outputdir_btn(self, master):
"""
"""
master.propagate(False)
_btn = tk.Button(master,
text='<<',
activebackground=self.LIGHT_BG,
font=('Consolas', '14', 'bold'),
command=self._call_askdir)
_btn.pack(padx=5, pady=3)
return _btn
def _call_process_files(self):
"""
called by "process" button \\
checks 'current_active_tab' property \\
calls subservient functions
"""
if self.current_active_tab == 0:
self._make_concatenation()
elif self.current_active_tab == 1:
self._make_resizing()
def _make_concatenation(self):
"""
depending on activated flags different combination of scripts is called
"""
file_names = self.lstbox.get(0, tk.END)
if len(file_names) < 2: return
image_list = [Image.open(e) for e in file_names]
if self.bs_resize.variable:
if self.bs_concat.variable:
max_width = MergerScripts.find_max_width(image_list)
image_list = MergerScripts.resize_all_tomax(image_list,
max_width,
Image,
is_vertical=True)
else:
max_height = MergerScripts.find_max_height(image_list)
image_list = MergerScripts.resize_all_tomax(image_list,
max_height,
Image,
is_vertical=False)
if self.bs_concat.variable:
result_image = MergerScripts.concatenate_v(image_list,
self.bg_color, Image)
else:
result_image = MergerScripts.concatenate_h(image_list,
self.bg_color, Image)
_path = self.direntry.variable
_path = MergerScripts.make_default_concatenation_path(_path)
self.direntry.variable = _path
result_image.save(f'{self.direntry.variable}', 'PNG')
def _make_resizing(self):
"""
converts width, height values \\
calls subservient resizing functions
"""
file_names = self.lstbox.get(0, tk.END)
if not file_names: return
try:
width = int(self.width_entry.variable)
except ValueError:
width = None
try:
height = int(self.height_entry.variable)
except ValueError:
height = None
filetype = 'PNG' if self.bs_file_type.variable else 'JPEG'
if self.bs_sizes.variable == True:
MergerScripts.resize_percents(file_names, self.direntry.variable,
width, height, filetype)
else:
MergerScripts.resize_pixels(file_names, self.direntry.variable,
width, height, filetype)
def add_process_btn(self, rowindex, columnindex, master):
"""
place "process" btn on bottom line
"""
_frame = tk.Frame(master,
width=100,
height=30,
background=self.DARK_BG)
_frame.grid(row=rowindex, column=columnindex, columnspan=2)
_frame.propagate(False)
_btn = tk.Button(_frame,
text='Process',
activebackground=self.LIGHT_BG,
font=('Consolas', '14', 'bold'),
command=self._call_process_files)
_btn.pack(padx=5, pady=3)
return _btn
def test_find_max_height(self):
expected = 256
actual = MergerScripts.find_max_height(self.images)
assert expected == actual
def test_resize_all_tomax(self):
expected = 256
actual = MergerScripts.resize_all_tomax(self.images, 256, Image,
True)[1].width
assert expected == actual
def test_concatenate_v(self):
expected = 270
actual = MergerScripts.concatenate_v(self.images, 'white',
Image).height
assert expected == actual
def test_concatenate_h(self):
expected = 288
actual = MergerScripts.concatenate_h(self.images, 'white', Image).width
assert expected == actual
def test_formfilepath(self):
expected = 'merger.py.png'
actual = MergerScripts.make_default_concatenation_path(r'merger.py')
assert expected == actual
def test_findfilename(self):
expected = 'merger.py'
actual = MergerScripts._find_filename(r'E:\folder1\workdir\merger.py')
assert expected == actual
def test_findfolderpath(self):
expected = 'E:\\folder1\workdir\\'
actual = MergerScripts.find_folderpath(r'E:\folder1\workdir\merger.py')
assert expected == actual