OLED additional features: Bullet Counts

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As of ProffiesOS 6.x, it's possible to show bullet counts on an OLED display. Here's what you would need:

This includes the display code, but doesn't activate it. May become the default in the future.

#define INCLUDE_SSD1306

Here's how we activate the display:


DisplayHelper<128, uint32_t,
  ClearRectangleOp<10, 80, 8, 24>,
  WriteBulletCountOp<10, 20, 5>
> display_controller;

SSD1306Template<128, uint32_t> display(&display_controller);

The DisplayHelper class takes a list of display operations, which works a lot like the Layers<> style. Currently, these operations are available:

Two different base layers:

  1. BaseLayerOp<StandardDisplayController>
  2. ClearScreenOp

The first one makes it work like a standard display controller (shows, font.bmp, messages, etc., the second one just makes it black.

ClearRectangleOp<x1, x2, y1, y2> 🔗

This op clears a rectangle on the screen.

WriteBulletCountOp<x, y, digits> 🔗

Writes the current bullet count at the specified location.

IfImageOp<OP> 🔗

This executes OP if the base layer is showing an image, but not otherwise. The idea is that you could have a bullet count that draws over images, but not messages and battery monitors.

We will probably need more display OPs real soon for other purposes... In 7.x I plan to make it possible to specify a different display controller for each preset, essentially making it a "style" for the display.