feat: Companion - New model curve tab layout, curve edit dialog and mix edit curve view (#1484)

Add curve image and double click to edit to input edit, mix edit and outputs

companion/src/shared/curveimage.cpp

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) OpenTX
+ *
+ * Based on code named
+ *   th9x - http://code.google.com/p/th9x
+ *   er9x - http://code.google.com/p/er9x
+ *   gruvin9x - http://code.google.com/p/gruvin9x
+ *
+ * License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include "curveimage.h"
+#include "curvedata.h"
+
+constexpr int IMAGE_SIZE = { 200 };
+
+CurveImage::CurveImage(QColor gridColor, qreal gridWidth):
+  size(IMAGE_SIZE),
+  image(size + 1, size + 1, QImage::Format_RGB32),
+  painter(&image)
+{
+  painter.setBrush(QBrush(Qt::white));
+  painter.setPen(Qt::black);
+  painter.drawRect(0, 0, size, size);
+
+  painter.setPen(QPen(gridColor, gridWidth));
+  const int step = size / 4;
+  painter.drawLine(0, step * 1, size, step * 1);
+  painter.drawLine(0, step * 2, size, step * 2);
+  painter.drawLine(0, step * 3, size, step * 3);
+  painter.drawLine(step * 1, 0, step * 1, size);
+  painter.drawLine(step * 2, 0, step * 2, size);
+  painter.drawLine(step * 3, 0, step * 3, size);
+}
+
+void CurveImage::drawCurve(const CurveData & curve, QColor color, qreal width)
+{
+  painter.setPen(QPen(color, width, Qt::SolidLine));
+
+  for (int j = 1; j < curve.count; j++) {
+    if (curve.type == CurveData::CURVE_TYPE_CUSTOM)
+      painter.drawLine(size / 2 + (size * curve.points[j - 1].x) / IMAGE_SIZE,
+                       size / 2 - (size * curve.points[j - 1].y) / IMAGE_SIZE,
+                       size / 2 + (size * curve.points[j].x) / IMAGE_SIZE,
+                       size / 2 - (size * curve.points[j].y) / IMAGE_SIZE);
+    else
+      painter.drawLine(size * (j-1) / (curve.count - 1),
+                       size / 2 - (size * curve.points[j - 1].y) / IMAGE_SIZE,
+                       size * (j) / (curve.count - 1),
+                       size / 2 - (size * curve.points[j].y) / IMAGE_SIZE);
+  }
+}