E-Paper display object oriented library.

This is a library that aims to simplify the graphic creation process for E-Paper display, providing an object-oriented solution. Thanks to the object-oriented approach, each figure printed on the screen can be modified easily just modifying their properties, avoiding creating again from zero. On the next list, you can see which operations are available for each figure.

On the other hand, one of the weak points of the e-Paper Display is the slow refresh time. This library includes by default the proper configuration to achieve partial refresh with a maximum refresh speed of 20 mS from white to black, which translates in a frame rate of up to 3 FPS, allowing some simple animations.

At this moment, this library is only compatible with the ESP32 and the E-Paper display WFT0420CZ15 which can be found on the next products:

But this can be ported easily to any E-Paper display with partial refresh and any other microController with enough resources.

Basic figures:

(All the operations can be set at build and run time.)

Line:
- Resize.
- Change color.
- Change angle orientation.
- Change position.
- Delete the figure and repaint without creating again the figure.
Rectangule:
- Resize on any axis.
- Fill.
- Change the line and background color.
- Change the position.
- Delete the figure and repaint without creating again the figure.
Circle:
- Resize.
- Fill the circle.
- Change the position.
- Change the color
- Delete the figure and repaint without creating again the figure.

Images:

At this moment the image module can do the next features:

Easy Image loading.
Moves freely around the screen.
Delete the image and repaint without creating again the image.

Text:

The text ussage has been deeple inspired on the textBox ussage on interface creation programs so you can do the next operation on run time:

Change the size of the string.
Change the font of the text.
Move freely around the screen.
New line and return characters.
Index font library.

Examples:

You can find a set of examples on the Examples folder. This is a list of the available demos: WIP

TODO:

Add more fonts.
Improve hardware calls to make it more portable.
Improve image handle, to obtain automatically the image size.
Add examples.
Compilation time image transform into hexadecimal, instead of external transforming.
Compilation time fonts transforming.

Apendix:

Add a new image:

WIP

Add a new font: