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Major update of all demo programs to use new PEP8 bindings, etc

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This commit is contained in:
PySimpleGUI 2019-10-23 16:10:03 -04:00
parent 3f7c87c562
commit 7f52778bcc
307 changed files with 19546 additions and 3297 deletions
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18
DemoPrograms/Demo_Graph_Drag_Rectangle.py
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@ -19,20 +19,22 @@ layout = [[sg.Graph(
key="-GRAPH-",
change_submits=True, # mouse click events
drag_submits=True),],
[sg.Text("", key="info", size=(60, 1))]]
[sg.Text(key='info', size=(60, 1))]]
window = sg.Window("draw rect on image", layout, finalize=True)
# get the graph element for ease of use later
graph = window["-GRAPH-"] # type: sg.Graph
graph.DrawImage(image_file, location=(0,0)) if image_file else None
graph.draw_image(image_file, location=(0,0)) if image_file else None
dragging = False
start_point = end_point = prior_rect = None
while True:
event, values = window.Read()
event, values = window.read()
if event is None:
break # exit
if event == "-GRAPH-": # if there's a "Graph" event, then it's a mouse
x, y = values["-GRAPH-"]
if not dragging:
@ -41,13 +43,15 @@ while True:
else:
end_point = (x, y)
if prior_rect:
graph.DeleteFigure(prior_rect)
graph.delete_figure(prior_rect)
if None not in (start_point, end_point):
prior_rect = graph.DrawRectangle(start_point, end_point, line_color='red')
prior_rect = graph.draw_rectangle(start_point, end_point, line_color='red')
elif event.endswith('+UP'): # The drawing has ended because mouse up
info = window.Element("info")
info.Update(value=f"grabbed rectangle from {start_point} to {end_point}")
info = window["info"]
info.update(value=f"grabbed rectangle from {start_point} to {end_point}")
start_point, end_point = None, None # enable grabbing a new rect
dragging = False
else:
print("unhandled event", event, values)