pythonuser-interfacecontextmenufiremonkeypopupmenu

How to add a right-click context menu to your controls in a Python FMX GUI App?


I've made a Form with an Image using the DelphiFMX GUI Library for Python, but what I want now is a right-click context menu on the image. When I right-click on the image, then it should bring up a context popup menu as you see here in VSCode when I right-click:

Visual Studio Code Editor Context Menu Right Click

I have the following code that makes my Form and Image:

import os
from delphifmx import *

class frmMain(Form):
    def __init__(self, owner):
        self.Caption = 'My Form with Image and Context Menu'
        self.Width = 1000
        self.Height = 1000

        self.imgDirt = Image(self)
        self.imgDirt.Parent = self
        self.imgDirt.Align = "Client"
        self.imgDirt.Margins.Top = 40
        self.imgDirt.Margins.Left = 40
        self.imgDirt.Margins.Right = 40
        self.imgDirt.Margins.Bottom = 40

        path = os.path.dirname(os.path.abspath(__file__))
        self.imgDirt.Bitmap.LoadFromFile(path + '\dirt.png')


def main():
    Application.Initialize()
    Application.Title = "My Application"
    Application.MainForm = frmMain(Application)
    Application.MainForm.Show()
    Application.Run()
    Application.MainForm.Destroy()

main()

I tried doing things like this, but it doesn't work (NameError: name 'ContextMenu' is not defined):

self.cm = ContextMenu(self)
self.cm.Items.Add("Item 1")
self.cm.Items.Add("Item 2")
self.cm.Items.Add("Item 3")

Same for:

self.cm = PopUpMenu(self)

How do I do this in FMX for Python? Simple Right-click Context Menu PopUp on the Image


Solution

  • I found my own problem. It is a PopupMenu and not a PopUpMenu. So the wording is case-sensitive.

    To create a PopupMenu (Context Menu), here's the code:

    # Step 1: Create a PopupMenu
    self.cm = PopupMenu(self)
    self.cm.Parent = self
    
    
    
    # Step 2: Create MenuItems
    self.MenuItem1 = MenuItem(self)
    self.MenuItem1.Parent = self.cm
    self.MenuItem1.Text = "Item 1"
    
    self.MenuItem2 = MenuItem(self)
    self.MenuItem2.Parent = self.cm
    self.MenuItem2.Text = "Item 2"
    
    self.MenuItem3 = MenuItem(self)
    self.MenuItem3.Parent = self.cm
    self.MenuItem3.Text = "Item 3"
    
    
    
    # Step 3: Assign PopupMenu to Image
    self.imgDirt.PopupMenu = self.cm
    

    It's basically split into three parts.

    1. Create the PopupMenu component.
    2. Create the MenuItem components, give them a Caption (Text), and set their Parent to the PopupMenu component.
    3. Assign the PopupMenu to whatever component you want it to appear on. I assigned it to my Image component.

    This is how it will look when I right-click on the image: Python GUI App with Context Menu (Popup Menu)