Функция
Затем мы создаем
199 void Plotter::drawGrid(QPainter *painter)
200 {
201 QRect rect(Margin, Margin,
202 width() - 2 * Margin, height() - 2 * Margin);
203 if (!rect.isValid())
204 return;
205 PlotSettings settings = zoomStack[curZoom];
206 QPen quiteDark = palette().dark().color().light();
207 QPen light = palette().light().color();
208 for (int i = 0; i <= settings.numXTicks; ++i) {
209 int x = rect.left() + (i * (rect.width() - 1)
210 / settings.numXTicks);
211 double label = settings.minX + (i * settings.spanX()
212 / settings.numXTicks);
213 painter->setPen(quiteDark);
214 painter->drawLine(x, rect.top(), x, rect.bottom());
215 painter->setPen(light);
216 painter->drawLine(x, rect.bottom(), x, rect.bottom() + 5);
217 painter->drawText(x - 50, rect.bottom() + 5, 100, 15,
218 Qt::AlignHCenter | Qt::AlignTop,
219 QString::number(label));
220 }
221 for (int j = 0; j <= settings.numVTicks; ++j) {
222 int y = rect.bottom() - (j * (rect.height() - 1)
223 / settings.numYTicks);
224 double label = settings.minY + (j * settings.spanY()
225 / settings.numYTicks);
226 painter->setPen(quiteDark);
227 painter->drawLine(rect.left(), у, rect.right(), у);
228 painter->setPen(light);
229 painter->drawLine(rect.left() - 5, y, rect.left(), у);
230 painter->drawText(rect.left() - Margin, у - 10, Margin - 5, 20,
231 Qt::AlignRight | Qt::AlignVCenter,
232 QString::number(label));
233 }
234 painter->drawRect(rect.adjusted(0, 0, -1, -1));
235 }
Функция
Первый цикл
Вызовы функции