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PySimpleGUI
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Merge pull request #43 from MikeTheWatchGuy/Dev-latest 

Dev latest
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MikeTheWatchGuy 2018-08-22 18:31:22 -04:00 committed by GitHub
parent 1b0f7488d0 3b9850ed39
commit 24d676a051
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2 changed files with 102 additions and 13 deletions
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57
Demo_PNG_Viewer.py Normal file
View File

@ -0,0 +1,57 @@
import PySimpleGUI as sg
import os
# Simple Image Browser based on PySimpleGUI
# Get the folder containing the images from the user
rc, folder = sg.GetPathBox('Image Browser', 'Image folder to open', default_path='A:/TEMP/PDFs')
if rc is False or folder is '':
sg.MsgBoxCancel('Cancelling')
exit(0)
# get list of PNG files in folder
png_files = [folder + '\\' + f for f in os.listdir(folder) if '.png' in f]
if len(png_files) == 0:
sg.MsgBox('No PNG images in folder')
exit(0)
# create the form that also returns keyboard events
form = sg.FlexForm('Image Browser', return_keyboard_events=True)
# make these 2 elements outside the layout because want to "update" them later
# initialize to the first PNG file in the list
image_elem = sg.Image(filename=png_files[0])
filename_display_elem = sg.Text(png_files[0], size=(80, 3))
file_num_display_elem = sg.Text('File 1 of {}'.format(len(png_files)), size=(10,1))
# define layout, show and read the form
layout = [[filename_display_elem],
[image_elem],
[sg.ReadFormButton('Next', size=(8,2)), sg.ReadFormButton('Prev', size=(8,2)), file_num_display_elem]]
form.LayoutAndRead(layout) # Shows form on screen
# loop reading the user input and displaying image, filename
i=0
while True:
f = png_files[i]
# update window with new image
image_elem.Update(filename=f)
# update window with filename
filename_display_elem.Update(f)
# update page display
file_num_display_elem.Update('File {} of {}'.format(i+1, len(png_files)))
# read the form
button, values = form.Read()
# perform button and keyboard operations
if button is None:
break
elif button in ('Next', 'MouseWheel:Down', 'Down:40', 'Next:34') and i < len(png_files):
i += 1
elif button in ('Prev', 'MouseWheel:Up', 'Up:38', 'Prior:33') and i > 0:
i -= 1

58
PySimpleGUI.py
View File

@ -239,6 +239,9 @@ class InputText(Element):
def Update(self, new_value):
self.TKStringVar.set(new_value)
def Get(self):
return self.TKStringVar.get()
def __del__(self):
super().__del__()
@ -359,15 +362,22 @@ class Checkbox(Element):
self.Text = text
self.InitialState = default
self.Value = None
self.TKCheckbox = None
self.TKCheckbutton = None
super().__init__(ELEM_TYPE_INPUT_CHECKBOX, scale=scale, size=size, auto_size_text=auto_size_text, font=font, background_color=background_color, text_color=text_color, key=key)
def Get(self):
return self.TKIntVar.get()
def Update(self, value):
if value is None:
self.TKCheckbutton.configure(state='disabled')
else:
self.TKCheckbutton.configure(state='normal')
self.TKIntVar.set(value)
def __del__(self):
try:
self.TKCheckbox.__del__()
except:
pass
super().__del__()
# ---------------------------------------------------------------------- #
@ -431,6 +441,10 @@ class Multiline(Element):
def Update(self, NewValue):
self.TKText.insert(1.0, NewValue)
def Get(self):
return self.TKText.get(1.0, tk.END)
def __del__(self):
super().__del__()
@ -521,7 +535,7 @@ class TKProgressBar():
# TKOutput #
# New Type of TK Widget that's a Text Widget in disguise #
# Note that it's inherited from the TKFrame class so that the #
# Scroll bar will span the length of the frame
# Scroll bar will span the length of the frame #
# ---------------------------------------------------------------------- #
class TKOutput(tk.Frame):
def __init__(self, parent, width, height, bd, background_color=None, text_color=None):
@ -774,7 +788,8 @@ class Image(Element):
else:
image = data
else: return
self.tktext_label.configure(image=image)
width, height = image.width(), image.height()
self.tktext_label.configure(image=image, width=width, height=height)
self.tktext_label.image = image
def __del__(self):
@ -1033,6 +1048,14 @@ class FlexForm:
_my_windows.Decrement()
return BuildResults(self, False, self)
def GetScreenDimensions(self):
if self.TKrootDestroyed:
return None, None
screen_width = self.TKroot.winfo_screenwidth() # get window info to move to middle of screen
screen_height = self.TKroot.winfo_screenheight()
return screen_width, screen_height
def KeyboardCallback(self, event ):
self.LastButtonClicked = None
self.FormRemainedOpen = True
@ -1134,6 +1157,11 @@ def In(default_text ='', scale=(None, None), size=(None, None), auto_size_text=N
def Input(default_text ='', scale=(None, None), size=(None, None), auto_size_text=None, password_char='', background_color=None, text_color=None, do_not_clear=False, key=None, focus=False):
return InputText(default_text=default_text, scale=scale, size=size, auto_size_text=auto_size_text, password_char=password_char, background_color=background_color, text_color=text_color, do_not_clear=do_not_clear, focus=focus, key=key)
# ------------------------- CHECKBOX Element lazy functions ------------------------- #
CB = Checkbox
CBox = Checkbox
Check = Checkbox
# ------------------------- INPUT COMBO Element lazy functions ------------------------- #
def Combo(values, scale=(None, None), size=(None, None), auto_size_text=None, background_color=None):
return InputCombo(values=values, scale=scale, size=size, auto_size_text=auto_size_text, background_color=background_color)
@ -1331,9 +1359,12 @@ def BuildResultsForSubform(form, initialize_only, top_level_form):
AddToReturnList(form, value)
AddToReturnDictionary(top_level_form, element, value)
if form.ReturnKeyboardEvents and form.LastKeyboardEvent is not None:
button_pressed_text = form.LastKeyboardEvent
form.LastKeyboardEvent = None
# if this is a column, then will fail so need to wrap with tr
try:
if form.ReturnKeyboardEvents and form.LastKeyboardEvent is not None:
button_pressed_text = form.LastKeyboardEvent
form.LastKeyboardEvent = None
except: pass
try:
form.ReturnValuesDictionary.pop(None, None) # clean up dictionary include None was included
@ -1435,12 +1466,13 @@ def PackFormIntoFrame(form, containing_frame, toplevel_form):
# tktext_label = tk.Label(tk_row_frame,anchor=tk.NW, text=display_text, width=width, height=height, justify=tk.LEFT, bd=border_depth)
# Set wrap-length for text (in PIXELS) == PAIN IN THE ASS
wraplen = tktext_label.winfo_reqwidth() # width of widget in Pixels
tktext_label.configure(anchor=anchor, font=font, wraplen=wraplen*2 ) # set wrap to width of widget
tktext_label.configure(anchor=anchor, font=font, wraplen=wraplen+40) # set wrap to width of widget
if element.BackgroundColor is not None:
tktext_label.configure(background=element.BackgroundColor)
if element.TextColor != COLOR_SYSTEM_DEFAULT and element.TextColor is not None:
tktext_label.configure(fg=element.TextColor)
tktext_label.pack(side=tk.LEFT)
# print(f'Text element placed w = {width}, h = {height}, wrap = {wraplen}')
# ------------------------- BUTTON element ------------------------- #
elif element_type == ELEM_TYPE_BUTTON:
element.Location = (row_num, col_num)
@ -1901,7 +1933,7 @@ def MsgBox(*args, button_color=None, button_type=MSG_BOX_OK, auto_close=False, a
max_line_total = max(max_line_total, width_used)
# height = _GetNumLinesNeeded(message, width_used)
height = message_wrapped_lines
form.AddRow(Text(message_wrapped, auto_size_text=True))
form.AddRow(Text(message_wrapped, auto_size_text=True, size=(width_used, height)))
total_lines += height
pad = max_line_total-15 if max_line_total > 15 else 1
@ -2645,7 +2677,7 @@ def ObjToString(obj, extra=' '):
def main():
with FlexForm('Demo form..') as form:
form_rows = [[Text('You are running the PySimpleGUI.py file itself')],
[Text('You should be importing it rather than running it\n')],
[Text('You should be importing it rather than running it', size=(50,2))],
[Text('Here is your sample input form....')],
[Text('Source Folder', size=(15, 1), justification='right'), InputText('Source', focus=True),FolderBrowse()],
[Text('Destination Folder', size=(15, 1), justification='right'), InputText('Dest'), FolderBrowse()],