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Thomas Farstrike
79 lines
2.6 KiB
Python
79 lines
2.6 KiB
Python
import lvgl as lv
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from mpos import Activity, DisplayMetrics, InputManager
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indev_error_x = 160
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indev_error_y = 120
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DARKPINK = lv.color_hex(0xEC048C)
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class Draw(Activity):
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hor_res = 0
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ver_res = 0
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layer = None
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# Widgets:
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canvas = None
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def onCreate(self):
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screen = lv.obj()
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self.canvas = lv.canvas(screen)
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d = lv.display_get_default()
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self.hor_res = d.get_horizontal_resolution()
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self.ver_res = d.get_vertical_resolution()
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self.canvas.set_size(self.hor_res, self.ver_res)
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self.canvas.set_style_bg_color(lv.color_white(), lv.PART.MAIN)
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buffer = bytearray(self.hor_res * self.ver_res * 4)
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self.canvas.set_buffer(buffer, self.hor_res, self.ver_res, lv.COLOR_FORMAT.NATIVE)
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self.canvas.fill_bg(lv.color_white(), lv.OPA.COVER)
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self.canvas.add_flag(lv.obj.FLAG.CLICKABLE)
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self.canvas.add_event_cb(self.touch_cb, lv.EVENT.ALL, None)
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self.layer = lv.layer_t()
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self.canvas.init_layer(self.layer)
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self.setContentView(screen)
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def touch_cb(self, event):
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event_code=event.get_code()
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if event_code not in [19,23,25,26,27,28,29,30,49]:
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if event_code == lv.EVENT.PRESSING: # this is probably enough
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x, y = InputManager.pointer_xy()
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#canvas.set_px(x,y,lv.color_black(),lv.OPA.COVER) # draw a tiny point
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self.draw_rect(x,y)
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#self.draw_line(x,y)
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return
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def draw_line(self, x, y):
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dsc = lv.draw_line_dsc_t()
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lv.draw_line_dsc_t.init(dsc)
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dsc.color = DARKPINK
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dsc.width = 4
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dsc.round_end = 1
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dsc.round_start = 1
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dsc.p1 = lv.point_precise_t()
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dsc.p1.x = x
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dsc.p1.y = y
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dsc.p2 = lv.point_precise_t()
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dsc.p2.x = 100
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dsc.p2.y = 200
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lv.draw_line(self.layer,dsc)
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self.canvas.finish_layer(self.layer)
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# @micropython.viper # "invalid micropython decorator" on macOS
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def draw_rect(self, x: int, y: int):
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draw_dsc = lv.draw_rect_dsc_t()
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lv.draw_rect_dsc_t.init(draw_dsc)
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draw_dsc.bg_color = lv.color_hex(0xffaaaa)
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draw_dsc.radius = lv.RADIUS_CIRCLE
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draw_dsc.border_color = lv.color_hex(0xff5555)
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draw_dsc.border_width = 2
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draw_dsc.outline_color = lv.color_hex(0xff0000)
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draw_dsc.outline_pad = 3
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draw_dsc.outline_width = 2
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a = lv.area_t()
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a.x1 = x-10
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a.y1 = y-10
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a.x2 = x+10
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a.y2 = y+10
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lv.draw_rect(self.layer, draw_dsc, a)
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self.canvas.finish_layer(self.layer)
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