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PySimpleGUI
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Warnings added to help people when they missed calling Finalize

This commit is contained in:
MikeTheWatchGuy 2018-09-26 23:06:06 -04:00
parent 9c59d86d1c
commit 4208d9d569
2 changed files with 41 additions and 1 deletions
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2
Demo_Graph_Drawing.py
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@ -5,7 +5,7 @@ layout = [
[sg.T('Change circle color to:'), sg.ReadButton('Red'), sg.ReadButton('Blue'), sg.ReadButton('Move')]
]
window = sg.Window('Graph test').Layout(layout)
window = sg.Window('Graph test').Layout(layout).Finalize()
graph = window.FindElement('graph')
circle = graph.DrawCircle((75,75), 25, fill_color='black',line_color='white')

40
PySimpleGUI.py
View File

@ -1288,48 +1288,88 @@ class Graph(Element):
def DrawLine(self, point_from, point_to, color='black', width=1):
converted_point_from = self._convert_xy_to_canvas_xy(point_from[0], point_from[1])
converted_point_to = self._convert_xy_to_canvas_xy(point_to[0], point_to[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
return self._TKCanvas2.create_line(converted_point_from, converted_point_to, width=width, fill=color)
def DrawPoint(self, point, size=2, color='black'):
converted_point = self._convert_xy_to_canvas_xy(point[0], point[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
return self._TKCanvas2.create_oval(converted_point[0]-size, converted_point[1]-size, converted_point[0]+size, converted_point[1]+size, fill=color, outline=color )
def DrawCircle(self, center_location, radius, fill_color=None, line_color='black'):
converted_point = self._convert_xy_to_canvas_xy(center_location[0], center_location[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
return self._TKCanvas2.create_oval(converted_point[0]-radius, converted_point[1]-radius, converted_point[0]+radius, converted_point[1]+radius, fill=fill_color, outline=line_color)
def DrawOval(self, top_left, bottom_right, fill_color=None, line_color=None):
converted_top_left = self._convert_xy_to_canvas_xy(top_left[0], top_left[1])
converted_bottom_right = self._convert_xy_to_canvas_xy(bottom_right[0],bottom_right[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
return self._TKCanvas2.create_oval(converted_top_left[0], converted_top_left[1], converted_bottom_right[0], converted_bottom_right[1], fill=fill_color, outline=line_color)
def DrawRectangle(self, top_left, bottom_right, fill_color=None, line_color=None):
converted_top_left = self._convert_xy_to_canvas_xy(top_left[0], top_left[1] )
converted_bottom_right = self._convert_xy_to_canvas_xy(bottom_right[0], bottom_right[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
return self._TKCanvas2.create_rectangle(converted_top_left[0], converted_top_left[1], converted_bottom_right[0], converted_bottom_right[1], fill=fill_color, outline=line_color)
def DrawText(self, text, location, color='black', font=None):
converted_point = self._convert_xy_to_canvas_xy(location[0], location[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
return self._TKCanvas2.create_text(converted_point[0], converted_point[1], text=text, font=font, fill=color)
def Erase(self):
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
self._TKCanvas2.delete('all')
def Update(self, background_color):
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
self._TKCanvas2.configure(background=background_color)
def Move(self, x_direction, y_direction):
zero_converted = self._convert_xy_to_canvas_xy(0,0)
shift_converted = self._convert_xy_to_canvas_xy(x_direction, y_direction)
shift_amount = (shift_converted[0]-zero_converted[0], shift_converted[1]-zero_converted[1])
if self._TKCanvas2 is None:
print('*** WARNING - The Graph element has not been finalized and cannot be drawn upon ***')
print('Call Window.Finalize() prior to this operation')
return None
self._TKCanvas2.move('all', shift_amount[0], shift_amount[1])
def MoveFigure(self, figure, x_direction, y_direction):
zero_converted = self._convert_xy_to_canvas_xy(0,0)
shift_converted = self._convert_xy_to_canvas_xy(x_direction, y_direction)
shift_amount = (shift_converted[0]-zero_converted[0], shift_converted[1]-zero_converted[1])
if figure is None:
print('*** WARNING - Your figure is None. It most likely means your did not Finalize your Window ***')
print('Call Window.Finalize() prior to all graph operations')
return None
self._TKCanvas2.move(figure, shift_amount[0], shift_amount[1])
@property