Moved LcdWidget implementation into own .cpp file

2021-09-13 12:39:33 +02:00
parent 1b57e415be
commit 21b29899fd
3 changed files with 210 additions and 190 deletions
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) EdgeTX
+ *
+ * Based on code named
+ *   opentx - https://github.com/opentx/opentx
+ *   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 "lcdwidget.h"
+
+void LcdWidget::setData(unsigned char *buf, int width, int height, int depth)
+{
+  lcdBuf = buf;
+  lcdWidth = width;
+  lcdHeight = height;
+  lcdDepth = depth;
+  if (depth >= 8)
+    lcdSize = (width * height) * ((depth + 7) / 8);
+  else
+    lcdSize = (width * ((height + 7) / 8)) * depth;
+
+  localBuf = (unsigned char *)malloc(lcdSize);
+  memset(localBuf, 0, lcdSize);
+}
+
+void LcdWidget::setBgDefaultColor(const QColor &color)
+{
+  bgDefaultColor = color;
+}
+
+void LcdWidget::setBackgroundColor(const QColor &color) { bgColor = color; }
+
+void LcdWidget::makeScreenshot(const QString &fileName)
+{
+  int width, height;
+  if (lcdDepth < 12) {
+    width = 2 * lcdWidth;
+    height = 2 * lcdHeight;
+  } else {
+    width = lcdWidth;
+    height = lcdHeight;
+  }
+  QPixmap buffer(width, height);
+  QPainter p(&buffer);
+  doPaint(p);
+  if (fileName.isEmpty()) {
+    QApplication::clipboard()->setPixmap(buffer);
+    qInfo() << "Screenshot saved to clipboard";
+  } else {
+    buffer.toImage().save(fileName);
+    qInfo() << "Screenshot saved to:" << fileName;
+  }
+}
+
+void LcdWidget::onLcdChanged(bool light)
+{
+  QMutexLocker locker(&lcdMtx);
+  lightEnable = light;
+  memcpy(localBuf, lcdBuf, lcdSize);
+  if (!redrawTimer.isValid() ||
+      redrawTimer.hasExpired(LCD_WIDGET_REFRESH_PERIOD)) {
+    update();
+    redrawTimer.start();
+  }
+}
+
+void LcdWidget::doPaint(QPainter &p)
+{
+  QRgb rgb;
+  uint16_t z;
+
+  if (!localBuf) return;
+
+  if (lcdDepth == 16) {
+    for (int x = 0; x < lcdWidth; x++) {
+      for (int y = 0; y < lcdHeight; y++) {
+        z = ((uint16_t *)localBuf)[y * lcdWidth + x];
+        rgb = qRgb(255 * ((z & 0xF800) >> 11) / 0x1F,
+                   255 * ((z & 0x07E0) >> 5) / 0x3F, 255 * (z & 0x001F) / 0x1F);
+        p.setPen(rgb);
+        p.drawPoint(x, y);
+      }
+    }
+    return;
+  }
+  if (lcdDepth == 12) {
+    for (int x = 0; x < lcdWidth; x++) {
+      for (int y = 0; y < lcdHeight; y++) {
+        z = ((uint16_t *)localBuf)[y * lcdWidth + x];
+        rgb = qRgb(255 * ((z & 0xF00) >> 8) / 0x0F,
+                   255 * ((z & 0x0F0) >> 4) / 0x0F, 255 * (z & 0x00F) / 0x0F);
+        p.setPen(rgb);
+        p.drawPoint(x, y);
+      }
+    }
+    return;
+  }
+
+  QColor bg;
+  if (lightEnable)
+    bg = bgColor;
+  else
+    bg = bgDefaultColor;
+
+  p.setBackground(QBrush(bg));
+  p.eraseRect(0, 0, 2 * lcdWidth, 2 * lcdHeight);
+
+  if (lcdDepth == 1) {
+    rgb = qRgb(0, 0, 0);
+    p.setPen(rgb);
+    p.setBrush(QBrush(rgb));
+  }
+
+  uint16_t idx, mask;
+  uint16_t previousDepth = 0xFF;
+
+  for (int y = 0; y < lcdHeight; y++) {
+    idx = (y * lcdDepth / 8) * lcdWidth;
+    mask = (1 << (y % 8));
+    for (int x = 0; x < lcdWidth; x++, idx++) {
+      if (lcdDepth == 1) {
+        if (localBuf[idx] & mask) p.drawRect(2 * x, 2 * y, 1, 1);
+        continue;
+      }
+      // lcdDepth == 4
+      z = (y & 1) ? (localBuf[idx] >> 4) : (localBuf[idx] & 0x0F);
+      if (!z) continue;
+      if (z != previousDepth) {
+        previousDepth = z;
+        rgb = qRgb(bg.red() - (z * bg.red()) / 15,
+                   bg.green() - (z * bg.green()) / 15,
+                   bg.blue() - (z * bg.blue()) / 15);
+        p.setPen(rgb);
+        p.setBrush(QBrush(rgb));
+      }
+      p.drawRect(2 * x, 2 * y, 1, 1);
+    }
+  }
+}
+
+void LcdWidget::paintEvent(QPaintEvent *)
+{
+  QPainter p(this);
+  doPaint(p);
+}
+
+void LcdWidget::mouseMoveEvent(QMouseEvent *event)
+{
+  emit touchEvent(TouchSlide, event->pos().x(), event->pos().y());
+}
+
+void LcdWidget::mousePressEvent(QMouseEvent *event)
+{
+  emit touchEvent(TouchDown, event->pos().x(), event->pos().y());
+}
+
+void LcdWidget::mouseReleaseEvent(QMouseEvent *event)
+{
+  emit touchEvent(TouchUp, event->pos().x(), event->pos().y());
+}