Method OnPaint

src/base_grid.cpp:265–414

}

void BaseGrid::OnPaint(wxPaintEvent &) {
	// Find which columns need to be repainted
	std::vector<char> paint_columns;
	paint_columns.resize(columns.size(), false);
	bool any = false;
	for (wxRegionIterator region(GetUpdateRegion()); region; ++region) {
		wxRect updrect = region.GetRect();
		int x = 0;
		for (size_t i : agi::util::range(columns.size())) {
			int width = columns[i]->Width();
			if (width && updrect.x < x + width && updrect.x + updrect.width > x) {
				paint_columns[i] = true;
				any = true;
			}
			x += width;
		}
	}

	if (!any) return;

	int w = 0;
	int h = 0;
	GetClientSize(&w,&h);
	w -= scrollBar->GetSize().GetWidth();

	wxAutoBufferedPaintDC dc(this);
	dc.SetFont(font);

	dc.SetBackground(row_colors.Default);
	dc.Clear();

	// Draw labels
	dc.SetPen(*wxTRANSPARENT_PEN);
	dc.SetBrush(row_colors.LeftCol);
	dc.DrawRectangle(0, lineHeight, columns[0]->Width(), h-lineHeight);

	// Row colors
	wxColour text_standard(to_wx(OPT_GET("Colour/Subtitle Grid/Standard")->GetColor()));
	wxColour text_selection(to_wx(OPT_GET("Colour/Subtitle Grid/Selection")->GetColor()));
	wxColour text_collision(to_wx(OPT_GET("Colour/Subtitle Grid/Collision")->GetColor()));

	// First grid row
	wxPen grid_pen(to_wx(OPT_GET("Colour/Subtitle Grid/Lines")->GetColor()));
	dc.SetPen(grid_pen);
	dc.DrawLine(0, 0, w, 0);
	dc.SetPen(*wxTRANSPARENT_PEN);

	auto paint_text = [&](wxString const& str, int x, int y, int col) {
		int left = x + 4;
		if (columns[col]->Centered()) {
			wxSize ext = dc.GetTextExtent(str);
			left += (columns[col]->Width() - 6 - ext.GetWidth()) / 2;
		}

		dc.DrawText(str, left, y + 2);
	};

	// Paint header