qtools - qtools/borders/frame.py

-rw-r--r-- qtools/borders/frame.py
      1 """
      2 This is the 'frame' border style.
      3 """
      4 
      5 
      6 import functools
      7 import xcffib
      8 
      9 
     10 def frame(self, inner_w, inner_h, borderwidths, bordercolors):
     11     """
     12     The "frame" style accepts one border width and two colours.
     13 
     14     The first colour is the sides and the second is top and bottom.
     15       _________
     16      |\_______/|
     17      ||       ||
     18      ||       ||
     19      ||       ||
     20      ||_______||
     21      |/_______\|
     22 
     23     """
     24     if len(bordercolors) == 1:
     25         self.set_attribute(borderpixel=bordercolors[0])
     26         return
     27 
     28     core = self.conn.conn.core
     29     self.borderwidth = sum(borderwidths)
     30     outer_w = inner_w + self.borderwidth * 2
     31     outer_h = inner_h + self.borderwidth * 2
     32 
     33     pixmap = self.conn.conn.generate_id()
     34     core.CreatePixmap(
     35         self.conn.default_screen.root_depth, pixmap, self.wid, outer_w, outer_h
     36     )
     37     gc = self.conn.conn.generate_id()
     38     core.CreateGC(gc, pixmap, xcffib.xproto.GC.Foreground, [bordercolors[0]])
     39     rect = xcffib.xproto.RECTANGLE.synthetic(0, 0, outer_w, outer_h)
     40     core.PolyFillRectangle(pixmap, gc, 1, [rect])
     41 
     42     core.ChangeGC(gc, xcffib.xproto.GC.Foreground, [bordercolors[1]])
     43     core.FillPoly(
     44         pixmap, gc, 2, 0, 4, _frame_trapezium_top(self.borderwidth, outer_w)
     45     )
     46     core.FillPoly(
     47         pixmap, gc, 2, 0, 4, _frame_trapezium_bottom(self.borderwidth, outer_w, outer_h)
     48     )
     49 
     50     self.set_borderpixmap(pixmap, gc, outer_w, outer_h)
     51     core.FreePixmap(pixmap)
     52     core.FreeGC(gc)
     53     return
     54 
     55 
     56 @functools.lru_cache()
     57 def _frame_trapezium_top(borderwidth, width):
     58     points = [
     59         xcffib.xproto.POINT.synthetic(0, 0),
     60         xcffib.xproto.POINT.synthetic(borderwidth, borderwidth),
     61         xcffib.xproto.POINT.synthetic(width - borderwidth, borderwidth),
     62         xcffib.xproto.POINT.synthetic(width, 0),
     63     ]
     64     return points
     65 
     66 
     67 @functools.lru_cache()
     68 def _frame_trapezium_bottom(borderwidth, width, bottom):
     69     points = [
     70         xcffib.xproto.POINT.synthetic(0, bottom),
     71         xcffib.xproto.POINT.synthetic(borderwidth, bottom - borderwidth),
     72         xcffib.xproto.POINT.synthetic(width - borderwidth, bottom - borderwidth),
     73         xcffib.xproto.POINT.synthetic(width, bottom),
     74     ]
     75     return points
     76