test_OffscreenRedraw.cpp File Reference

Output that changes outside the window doesn't show a wrong frame. More...

#include <wx/app.h>
#include <wx/config.h>
#include <wx/frame.h>
#include <wx/log.h>
#include <wx/sizer.h>
#include <wx/utils.h>
#include "Configuration.h"
#include "MathParser.h"
#include "cells/CellList.h"
#include "cells/GroupCell.h"
#include "worksheet/Worksheet.h"
#include <catch2/catch.hpp>

Include dependency graph for test_OffscreenRedraw.cpp:

Data Structures
class	TestApp

Functions
	SCENARIO ("A paint that runs the pending layout pass draws at the scroll " "position that pass leaves")
	SCENARIO ("A change below the window doesn't repaint it")
	wxDECLARE_APP (TestApp)
int	main (int argc, char **argv)

Detailed Description

Output that changes outside the window doesn't show a wrong frame.

When output above the view grows, the layout pass scrolls by the same amount so that what is on screen stays put. A paint that ran that pass itself used to have its DC set up for the scroll position from before it, and drew the new layout shifted for one frame. And a change that starts below the window used to repaint the whole window for nothing.

Needs a real, shown window (run under xvfb); no Maxima.