2021-07-25 18:23:58 +01:00
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#- LVGL lv_signal_bars and lv_wifi_bars
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-
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--#
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class lv_signal_bars : lv_obj
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2021-09-08 11:41:28 +01:00
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var ancestor_design # previous design_cb
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var percentage # value to display, range 0..100
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var p1, p2, area, line_dsc # instances of objects kept to avoid re-instanciating at each call
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2021-07-25 18:23:58 +01:00
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def init(parent, copy)
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# init parent object
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super(self).init(parent, copy)
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# keep a copy of
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self.ancestor_design = self.get_design_cb()
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self.set_design_cb(self.my_design_cb)
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# own values
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self.percentage = 100
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# pre-allocate buffers
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self.p1 = lv_point()
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self.p2 = lv_point()
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self.area = lv_area()
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self.line_dsc = lv_draw_line_dsc()
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2021-07-25 18:23:58 +01:00
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end
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2021-09-08 11:41:28 +01:00
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def my_design_cb(clip_area, mode)
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def atleast1(x) if x >= 1 return x else return 1 end end
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2021-07-25 18:23:58 +01:00
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# the model is that we have 4 bars and inter-bar (1/4 of width)
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var height = self.get_height()
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var width = self.get_width()
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2021-07-25 20:20:14 +01:00
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var inter_bar = atleast1(width / 15)
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var bar = atleast1((width - inter_bar * 3) / 4)
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var bar_offset = bar / 2
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if mode == lv.DESIGN_COVER_CHK
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#- Return false if the object is not covers the clip_area clip_area -#
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return self.ancestor_design.call(self, clip_area, mode)
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elif mode == lv.DESIGN_DRAW_MAIN
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#self.ancestor_design.call(self, clip_area, mode) # commented since we don't draw a background
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2021-09-08 11:41:28 +01:00
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# get coordinates of object
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self.get_coords(self.area)
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var x_ofs = self.area.x1
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var y_ofs = self.area.y1
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lv.draw_line_dsc_init(self.line_dsc) # initialize lv_draw_line_dsc structure
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self.init_draw_line_dsc(lv.OBJ_PART_MAIN, self.line_dsc)
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self.line_dsc.round_start = 1
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self.line_dsc.round_end = 1
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self.line_dsc.width = bar
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var on_color = self.get_style_line_color(lv.OBJ_PART_MAIN, lv.STATE_DEFAULT)
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var off_color = self.get_style_bg_color(lv.OBJ_PART_MAIN, lv.STATE_DEFAULT)
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for i:0..3 # 4 bars
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self.line_dsc.color = self.percentage >= (i+1)*20 ? on_color : off_color
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self.p1.y = y_ofs + height - 1 - bar_offset
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self.p1.x = x_ofs + i * (bar + inter_bar) + bar_offset
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self.p2.y = y_ofs + ((3 - i) * (height - bar)) / 4 + bar_offset
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self.p2.x = self.p1.x
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lv.draw_line(self.p1, self.p2, clip_area, self.line_dsc)
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end
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#elif mode == lv.DESIGN_DRAW_POST # commented since we don't want a frame around this object
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#self.ancestor_design.call(self, clip_area, mode)
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end
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return lv.DESIGN_RES_OK
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end
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def set_percentage(v)
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var old_bars = self.percentage / 5
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if v > 100 v = 100 end
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if v < 0 v = 0 end
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self.percentage = v
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if old_bars != v / 5
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self.invalidate() # be frugal and avoid updating the widget if it's not needed
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end
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end
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def get_percentage()
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return self.percentage
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end
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end
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class lv_wifi_bars: lv_signal_bars
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def init(parent, copy)
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super(self).init(parent, copy)
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tasmota.add_driver(self)
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self.set_percentage(0) # we generally start with 0, meaning not connected
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end
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def every_second()
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var wifi = tasmota.wifi()
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var quality = wifi.find("quality")
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var ip = wifi.find("ip")
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if ip == nil
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self.set_percentage(0)
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elif quality != nil
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self.set_percentage(quality)
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end
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end
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2021-09-08 18:40:18 +01:00
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def del()
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super(self).del()
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tasmota.remove_driver(self)
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end
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end
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class lv_wifi_bars_icon: lv_wifi_bars
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def init(parent, copy)
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super(self).init(parent, copy)
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self.set_style_local_bg_color(lv.OBJ_PART_MAIN, lv.STATE_DEFAULT, lv_color(lv.COLOR_BLACK))
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if parent != nil
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var parent_height = parent.get_height()
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var pad_right = parent.get_style_pad_right(lv.OBJ_PART_MAIN, lv.STATE_DEFAULT)
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self.set_height(parent_height)
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self.set_width(parent_height)
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self.set_x(parent.get_width() - parent_height - pad_right)
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parent.set_style_local_pad_right(lv.OBJ_PART_MAIN, lv.STATE_DEFAULT, pad_right + parent_height + 1)
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end
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end
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end
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