NMEA2000-Code weiterbearbeitet
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@@ -1,3 +1,4 @@
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import os
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import cairo
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import math
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from .page import Page
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@@ -6,11 +7,50 @@ class ApparentWind(Page):
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def __init__(self, pageno, cfg, boatdata):
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super().__init__(pageno, cfg, boatdata)
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self.buttonlabel[1] = 'MODE'
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self.mode = 'L' # (W)ind (L)ens
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self.symbol = cairo.ImageSurface.create_from_png(os.path.join(cfg['imgpath'], "front.png"))
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def draw(self, ctx):
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def handle_key(self, buttonid):
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if buttonid == 1:
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if self.mode == 'W':
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self.mode = 'L'
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else:
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self.mode = 'W'
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return True
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return False
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def draw_wind(self, ctx):
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# Name
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ctx.select_font_face("Ubuntu", cairo.FontSlant.NORMAL, cairo.FontWeight.BOLD)
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ctx.set_font_size(60)
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ctx.set_font_size(40)
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ctx.move_to(20, 100)
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ctx.show_text("Apparent Wind")
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def draw_lens(self, ctx):
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ctx.save()
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ctx.set_source_surface(self.symbol, 140, 30)
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ctx.paint()
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ctx.restore()
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ctx.set_line_width(2)
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# Analoginstrument
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cx = 200
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cy = 150
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r = 135
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ctx.arc(cx, cy, r, math.radians(110), math.radians(250))
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ctx.stroke()
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ctx.arc(cx, cy, r, math.radians(-70), math.radians(70))
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ctx.stroke()
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# Windstärke als Digitalwert
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ctx.select_font_face("DSEG7 Classic")
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ctx.set_font_size(40)
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self.draw_text_center(ctx, cx, cy + 80, "14.3", fix1=True)
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def draw(self, ctx):
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ctx.select_font_face("Ubuntu", cairo.FontSlant.NORMAL, cairo.FontWeight.BOLD)
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if self.mode == 'W':
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self.draw_wind(ctx)
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else:
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self.draw_lens(ctx)
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@@ -167,36 +167,67 @@ class Page():
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ctx.fill()
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ctx.set_source_rgb(0, 0, 0)
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def draw_text_center(self, ctx, x, y, content, rotate=False, baseline=False, fill=False):
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ext = ctx.text_extents(content)
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def draw_text_center(self, ctx, x, y, content, rotate=False, baseline=False, fill=False, fix1=False):
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"""
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Korrektur für DSEG7: Die Breite der 1 ist gleich 0.289 * Breite der anderen Ziffern
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Da der Leerraum bei der Ausgabe mit berücksichtigt wird, muß die tatsächliche
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Ausgabeposition links von der Mitte sein um (1 - 0.289) * Breite (=0.711)
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Zusätzlich muß der Abstand zwischen der 1 und dem nachfolgenden Zeichen berücksichtigt
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werden
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"""
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if fix1 and content[0] == '1':
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print("Fix1")
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ext1 = ctx.text_extents('1')
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w1 = 0.289 * ext1.width
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dx = ext1.width - w1
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ext = ctx.text_extents(content[1:])
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else:
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ext = ctx.text_extents(content)
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if fill:
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ctx.set_source_rgb(*self.bgcolor)
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xf = x + ext.x_bearing - 2
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yf = y + ext.height / 2 + ext.y_bearing - 2
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wf = ext.width + 4
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if fix1:
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wf += w1
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hf = ext.height + 4
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ctx.rectangle(xf, yf, wf, hf)
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ctx.fill()
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ctx.set_source_rgb(*self.fgcolor)
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if rotate:
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w = ext[2]
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if fix1 and content[0] == '1':
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w += w1
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x = x - dx
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if baseline:
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ctx.move_to(x - ext[3] / 2.0, y)
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ctx.move_to(x - w / 2.0, y)
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else:
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ctx.move_to(x - ext[3] / 2.0, y + ext[2] / 2.0)
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ctx.move_to(x - w / 2.0, y + ext[2] / 2.0)
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ctx.save()
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ctx.rotate(1.5 * math.pi)
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ctx.show_text(content)
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ctx.restore()
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else:
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w = ext.width
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if fix1 and content[0] == '1':
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w += w1
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x = x - dx
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if baseline:
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ctx.move_to(x - ext[2] / 2.0, y)
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ctx.move_to(x - w / 2.0, y)
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else:
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ctx.move_to(x - ext[2] / 2.0, y + ext[3] / 2.0)
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ctx.move_to(x - w / 2.0, y + ext[3] / 2.0)
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ctx.show_text(content)
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ctx.stroke()
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def draw_text_ralign(self, ctx, x, y, content):
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ext = ctx.text_extents(content)
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ctx.move_to(x - ext[2], y)
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def draw_text_ralign(self, ctx, x, y, content, fix1=False):
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if fix1 and content[0] == '1':
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w1 = ctx.text_extents('1')[2] * 0.289
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ext = ctx.text_extents(content[1:])
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w = ext[2] + w1
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x = x - dx
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else:
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ext = ctx.text_extents(content)
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w = ext[2]
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ctx.move_to(x - w, y)
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ctx.show_text(content)
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ctx.stroke()
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