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sorted by modules and files.
This is still imcomplete. If in doubt, ask - or look into the source files.
Note: point (xpos, ypos) stands for left-down corner, while point (x, y) stands for left-up corner.
This module is used to control the eink display.
einkfb:refresh(fxtype=0, x=0, y=0, width=screen_width, height=screen_height)Refresh (update) a given area of the screen, specify by (xpos, ypos, width and height). The screen will remain the unchanged unless you call this function.
fxtype can be 0 or 1. 1 stands for partial refresh while 0 stands for full refresh. Since this function supports default argument, you can do a full screen partial refresh with:
fb:refresh(1)This module is used to draw stuff, you need the refresh function in einkfb module to reflect the changes.
blitbuffer:paintRect(x, y, w, h, c)Paint a rectangle that starts from point (x,y), with w as width, h as height and fill it with color c.
blitbuffer:invertRect(x, y, w, h)Invert a rectangle that starts from point (x,y), with w as width, h as height and fill it with XOR 0xFF
blitbuffer:blitFrom(bb, dst_x, dst_y, x_offs, y_offs, w, h)Fill biltbuffer, starts from (dst_x, dst_y), with content from bb. The content is copied from bb, starts from (x_offs, y_offs), with w as width and h as height.
return page width and height after zoomed.
renderUtf8Text(buffer, xpos, ypos, face, facehash, text, kerning)Draw text, start from point (xpos, ypos). Note that (xpos, ypos) points to the left-down corner of the font.
UniReader:setzoom(page)Render a given page and return a DrawContext, can be used by pdfpage:draw.
UniReader:draworcache(no, zoom, offset_x, offset_y, width, height, gamma, rotate)Return the hash of drawn page. The drawn result is saved in self.cache[hash]. So you can blit the result to screen with fb.bb:blitFullFrom(self.cache[hash].bb).
blitbuffer.paintBorder(bb, x, y, w, h, bw, c)Paint a border in a given area, starts from point (x, y) as left-upper corner, with w width and h height. The border width is bw and border color is c.
c can range from 0 to 15 (white to black).