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https://github.com/daveallie/crosspoint-reader.git
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e2cba5be83
## Summary * Show battery percentage on home screen * Moved battery rendering logic into shared ScreenComponents class * As discussed https://github.com/daveallie/crosspoint-reader/discussions/155
42 lines
1.6 KiB
C++
42 lines
1.6 KiB
C++
#include "ScreenComponents.h"
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#include <GfxRenderer.h>
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#include <string>
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#include "Battery.h"
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#include "fontIds.h"
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void ScreenComponents::drawBattery(const GfxRenderer& renderer, const int left, const int top) {
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// Left aligned battery icon and percentage
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const uint16_t percentage = battery.readPercentage();
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const auto percentageText = std::to_string(percentage) + "%";
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renderer.drawText(SMALL_FONT_ID, left + 20, top, percentageText.c_str());
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// 1 column on left, 2 columns on right, 5 columns of battery body
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constexpr int batteryWidth = 15;
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constexpr int batteryHeight = 10;
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const int x = left;
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const int y = top + 7;
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// Top line
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renderer.drawLine(x, y, x + batteryWidth - 4, y);
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// Bottom line
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renderer.drawLine(x, y + batteryHeight - 1, x + batteryWidth - 4, y + batteryHeight - 1);
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// Left line
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renderer.drawLine(x, y, x, y + batteryHeight - 1);
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// Battery end
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renderer.drawLine(x + batteryWidth - 4, y, x + batteryWidth - 4, y + batteryHeight - 1);
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renderer.drawLine(x + batteryWidth - 3, y + 2, x + batteryWidth - 1, y + 2);
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renderer.drawLine(x + batteryWidth - 3, y + batteryHeight - 3, x + batteryWidth - 1, y + batteryHeight - 3);
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renderer.drawLine(x + batteryWidth - 1, y + 2, x + batteryWidth - 1, y + batteryHeight - 3);
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// The +1 is to round up, so that we always fill at least one pixel
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int filledWidth = percentage * (batteryWidth - 5) / 100 + 1;
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if (filledWidth > batteryWidth - 5) {
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filledWidth = batteryWidth - 5; // Ensure we don't overflow
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}
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renderer.fillRect(x + 1, y + 1, filledWidth, batteryHeight - 2);
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}
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