def draw_point(self, gc: wx.GraphicsContext, point: Vec2, radius: float):
"""
Drawing a single point.
Args:
gc: Graphics context to modify.
point: Point to be drawn.
radius: Radius of the point.
"""
center = point - Vec2.repeat(radius / 2)
gc.DrawEllipse(center.x, center.y, radius, radius)
def __init__(self, parent, arrow_tip: ArrowTip):
"""
Initialize the arrow designer window with the given starting arrow tip.
Args:
parent: The parent window.
arrow_tip: ArrowTip object defining the arrow tip used.
"""
dim = Vec2(22, 16)
self.csize = 20
size = dim * self.csize + Vec2.repeat(1)
super().__init__(parent, size=size.as_tuple())
# add 1 to range end, so that the grid rectangle side will be included.
rows = [r for r in range(0, int(size.y), self.csize)]
cols = [c for c in range(0, int(size.x), self.csize)]
self.begin_points = list()
self.end_points = list()
for r in rows:
self.begin_points.append(wx.Point2D(0, r))
self.end_points.append(wx.Point2D(size.x - 1, r))
for c in cols:
self.begin_points.append(wx.Point2D(c, 0))
self.end_points.append(wx.Point2D(c, size.y - 1))
self.handle_c = api.get_theme('handle_color')
self.hl_handle_c = api.get_theme('highlighted_handle_color')
self.handle_pen = wx.Pen(self.handle_c)
self.hl_handle_pen = wx.Pen(self.hl_handle_c)
self.handle_brush = wx.Brush(self.handle_c)
self.hl_handle_brush = wx.Brush(self.hl_handle_c)
phantom_c = opacity_mul(self.handle_c, 0.5)
self.phantom_pen = wx.Pen(phantom_c)
self.phantom_brush = wx.Brush(phantom_c)
self.arrow_tip = arrow_tip
self.radius = 12
self.radius_sq = self.radius**2
self.hover_idx = -1
self.dragged_point = None
self.dragging = False
self.Bind(wx.EVT_PAINT, self.OnPaint)
self.Bind(wx.EVT_LEFT_DOWN, self.OnLeftDown)
self.Bind(wx.EVT_LEFT_UP, self.OnLeftUp)
self.Bind(wx.EVT_MOTION, self.OnMotion)
self.SetDoubleBuffered(True)