Is there a way to determine the precise cursor position within a cell of a Gtk IconView when it is clicked?

Looking to determine if a specific position in a Gtk Iconview cell was clicked on (highlighted by the blue box in the image).

In my exploration, I discovered two methods for obtaining cursor position:

Method 1: Use POINTER_MOTION_MASK to detect cursor location within the IconView

i.e.

 self.iconview.add_events(Gdk.EventMask.POINTER_MOTION_MASK)
 self.iconview.connect("motion-notify-event", self.on_pointer_motion)

This allows you to find the current cursor position and cell:

 def on_pointer_motion(self, widget, event):
    path= self.get_path_at_pos(event.x, event.y)

Method 2: Connect to "button-press-event"

 self.iconview.connect("button-press-event", self.on_mouse_click)

 def on_mouse_click(self, widget, event):
    path= self.get_path_at_pos(event.x, event.y)

The challenge is tying event.x and event.y to a specific area within the cell indicated by the blue box.

After reviewing resources for GtkCellArea, GtkCellAreaBox, and GtkIconView, no direct event/function seems available for this purpose.

Seeking guidance on how to approach solving this issue.

Currently utilizing Python 2.7 & GTK+ 3.2 for development, with plans to support python 3+ and all versions of GTK beyond GTK+ 3.2 as well.

pythongtk

Answer №1

It's not as difficult as it seems.

Here is a snippet of code from my PyGObject project named Playlist.py. In this code, I connect the signal button-press-event of GtkIconView to check the event type and obtain the path using the method iconview.get_path_at_pos(...). The path can be either None or the position of the selected cell based on the cursor position. For more details about the project, you can visit the GitHub repository at https://github.com/LiuLang/babystory

# Copyright (C) 2013 LiuLang <<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="cbacb8beb8a3b1a3b8a4b8acb8be8baca6aaa2a7e5a8a4a6">[email protected]</a>>

# This source code is distributed under the GPLv3 license which can be found
# at http://www.gnu.org/licenses/gpl-3.0.html

from gi.repository import GdkPixbuf
from gi.repository import Gdk
from gi.repository import Gtk
import json
import random

from babystory.Cache import Cache
from babystory import Config
from babystory import Net
from babystory import Utils
from babystory import Widgets

_ = Config._
TITLE, SIZE, DURATION, URL, CATEGORY = list(range(5))


def song_row_to_dict(song_row):
    song = {
            'Title': song_row[TITLE],
            'Size': song_row[SIZE],
            'Duration': song_row[DURATION],
            'Url': song_row[URL],
            'Category': song_row[CATEGORY],
            }
    return song

class Playlist(Gtk.Box):
    def __init__(self, app):
        self.app = app
        super().__init__()

        # Rest of the Python script for Playlist class...

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