Method DrawWidget

src/framerate_gui.cpp:859–973

	}

	void DrawWidget(const Rect &r, WidgetID widget) const override
	{
		if (widget == WID_FGW_GRAPH) {
			const auto &durations  = _pf_data[this->element].durations;
			const auto &timestamps = _pf_data[this->element].timestamps;
			int point = _pf_data[this->element].prev_index;

			const int x_zero = r.right - (int)this->graph_size.width;
			const int x_max = r.right;
			const int y_zero = r.top + (int)this->graph_size.height;
			const int y_max = r.top;
			const PixelColour c_grid = PC_DARK_GREY;
			const PixelColour c_lines = PC_BLACK;
			const PixelColour c_peak = PC_DARK_RED;

			const TimingMeasurement draw_horz_scale = (TimingMeasurement)this->horizontal_scale * TIMESTAMP_PRECISION / 2;
			const TimingMeasurement draw_vert_scale = (TimingMeasurement)this->vertical_scale;

			/* Number of \c horizontal_scale units in each horizontal division */
			const uint horz_div_scl = (this->horizontal_scale <= 20) ? 1 : 10;
			/* Number of divisions of the horizontal axis */
			const uint horz_divisions = this->horizontal_scale / horz_div_scl;
			/* Number of divisions of the vertical axis */
			const uint vert_divisions = 10;

			/* Draw division lines and labels for the vertical axis */
			for (uint division = 0; division < vert_divisions; division++) {
				int y = Scinterlate(y_zero, y_max, 0, (int)vert_divisions, (int)division);
				GfxDrawLine(x_zero, y, x_max, y, c_grid);
				if (division % 2 == 0) {
					if ((TimingMeasurement)this->vertical_scale > TIMESTAMP_PRECISION) {
						DrawString(r.left, x_zero - WidgetDimensions::scaled.hsep_normal, y - GetCharacterHeight(FS_SMALL),
							GetString(STR_FRAMERATE_GRAPH_SECONDS, this->vertical_scale * division / 10 / TIMESTAMP_PRECISION),
							TC_GREY, SA_RIGHT | SA_FORCE, false, FS_SMALL);
					} else {
						DrawString(r.left, x_zero - WidgetDimensions::scaled.hsep_normal, y - GetCharacterHeight(FS_SMALL),
							GetString(STR_FRAMERATE_GRAPH_MILLISECONDS, this->vertical_scale * division / 10 * 1000 / TIMESTAMP_PRECISION),
							TC_GREY, SA_RIGHT | SA_FORCE, false, FS_SMALL);
					}
				}
			}
			/* Draw division lines and labels for the horizontal axis */
			for (uint division = horz_divisions; division > 0; division--) {
				int x = Scinterlate(x_zero, x_max, 0, (int)horz_divisions, (int)horz_divisions - (int)division);
				GfxDrawLine(x, y_max, x, y_zero, c_grid);
				if (division % 2 == 0) {
					DrawString(x, x_max, y_zero + WidgetDimensions::scaled.vsep_normal,
						GetString(STR_FRAMERATE_GRAPH_SECONDS, division * horz_div_scl / 2),
						TC_GREY, SA_LEFT | SA_FORCE, false, FS_SMALL);
				}
			}

			/* Position of last rendered data point */
			Point lastpoint = {
				x_max,
				(int)Scinterlate<int64_t>(y_zero, y_max, 0, this->vertical_scale, durations[point])
			};
			/* Timestamp of last rendered data point */