Class: ToolButton (gtk.ToolButton)
Sugar tool buttons can be added to toolbars and used to control various activity processes. Some common tool button tasks are outlined below.
There are several steps you need to follow in order to create a tool button:
- Import the ToolButton class from the sugar.graphics.toolbutton package.
- If you intend to have an icon for your tool button, then create an "icons" directory in your activity directory and put the icon (which is a .svg file) in to that directory. For example, the code below uses an icon called "edit-custom" that accesses an edit-custom.svg file saved in the icons directory for the activity. Here is a link with information on how to create the svg files you will need: Making_Sugar_Icons
- Use the code below to guide you on how to then create your button programmatically and add it to a tool bar (we add it to an EditToolbar object that was presumably created already in our code).
from sugar.graphics.toolbutton import ToolButton ... #### CUSTOM TOOL BUTTON #Create a custom tool button and add it to the edit toolbar customButton = ToolButton('edit-custom') customButton.set_tooltip(_('Custom')) self._edit_toolbar.insert(customButton, -1) customButton.show()
The following code fragment connects a button to a callback ...
#When the customButton fires a "clicked" event, call self._custom_clicked_cb customButton.connect('clicked', self._custom_clicked_cb)
... which is then defined elsewhere in the class.
#CALLBACK METHOD def _custom_clicked_cb(self, widget): #Begin any callback code here
A tooltip is a brief textual description of a tool button that pops up when the mouse cursor is on the toolbutton and the user right-clicks. It is meant to be descriptive so that a user understands what a toolbutton does if it isn't immediately obvious from the icon.
#Set the tooltip for the customButton to "Custom" customButton.set_tooltip(_('Custom'))
Your first argument to the constructor for the ToolButton class will set the initial icon used for your tool button. If you decide to change your tool button's icon later, then you must get a handle on the tool button object and do the following:
#Reset the icon displayed for customButton customButton.set_icon("edit-custom");