Every time i use tool or plugin in QGIS, i saw a kind of bar like this for indicating loading progress :
The different between that bar and Progress Bar is that progress bar will increase until our defined iteration (run progress), but that bar only showing up reversibly. I need to replace it with this code (statusBar) in my main script as alternate of my "please wait.." message :
self.iface.mainWindow().statusBar().showMessage("Please Wait..") open_set.add(base_coordinate) ....
How to add that bar in my main plugin script (.py)? Is that kind of bar is similar with QProgressBar?