How do you control/change View panel width and height

Help
6

Asked ChatGPT for help composing a good question to pose about this and then asked the question…

Q: what is the correct technical term for the GUI element by which a mouse pointer can grab an interface gadget.
A: The correct technical term for the GUI element by which a mouse pointer can grab an interface gadget is “Drag Handle” or “Drag Handle Icon.” This graphical element is usually displayed as a small icon or symbol, often composed of a few horizontal lines or dots, which indicates that the gadget can be dragged or moved by clicking and holding the mouse button while moving the pointer. It is a common feature in graphical user interfaces (GUIs) to allow users to interact with and rearrange elements on the screen easily.

Q: Assume that a user of a GTK Python application finds that a Drag Handle is too small to be easily selected with a mouse (or a finger in a touch screen interface). Is there a way to increase the ‘hotspot’ size?
A: Yes, there is a way to increase the “hotspot” size of a Drag Handle in a GTK Python application. GTK (GIMP Toolkit) provides a mechanism to adjust the size of the hotspot, which is the area around the draggable element where mouse events are captured.

To achieve this, you can use the set_drag_threshold method of a GTK widget. This method allows you to set the size of the drag threshold in pixels, which effectively increases the hotspot area, making it easier to interact with the draggable element.

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

class MyWindow(Gtk.Window):
   def __init__(self):
       Gtk.Window.__init__(self, title="Drag Handle Example")
       self.set_default_size(300, 200)

       box = Gtk.Box(orientation=Gtk.Orientation.VERTICAL, spacing=6)
       self.add(box)

       # Create a button with a drag handle
       button = Gtk.Button.new_with_label("Drag Me!")
       box.pack_start(button, True, True, 0)

       # Increase the drag threshold (hotspot) size to 20 pixels
       button.set_drag_threshold(20)

win = MyWindow()
win.connect("destroy", Gtk.main_quit)
win.show_all()
Gtk.main()

In this example, we create a GTK window with a single button that has a Drag Handle. The set_drag_threshold(20) call increases the drag threshold (hotspot) size to 20 pixels, making it easier for users to interact with the button using the mouse or touch screen interface.

Adjust the value passed to set_drag_threshold as needed to find the appropriate hotspot size for your application. A larger value will increase the hotspot area, making it easier to grab the element, while a smaller value will make it more sensitive to dragging.

Keep in mind that this method is available in GTK 3.0 and later versions. If you’re using an older version of GTK, the method may not be available, and you’ll need to consider upgrading your GTK version.

Note: Gramps transitioned to GTK3 with version 4.2.4