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GeezerVison is showing github.com — fastplotlib/fastplotlib/tools/_textbox.py at browser · fastplotlib/fastplotlib Expand file tree/ Copy path_textbox.pyMore file actions 299 lines (239 loc) · 8.44 KB / Copy path_textbox.pyFile metadata and controls299 lines (239 loc) · 8.44 KB 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 import numpy as np import pygfx from ..utils.enums import RenderQueue class MeshMasks: """Used set the x0, x1, y0, y1 positions of the plane mesh""" x0 = np.array( [ [False, False, False], [True, False, False], [False, False, False], [True, False, False], ] ) x1 = np.array( [ [True, False, False], [False, False, False], [True, False, False], [False, False, False], ] ) y0 = np.array( [ [False, True, False], [False, True, False], [False, False, False], [False, False, False], ] ) y1 = np.array( [ [False, False, False], [False, False, False], [False, True, False], [False, True, False], ] ) masks = MeshMasks class TextBox: def __init__( self, font_size: int = 12, text_color: str | pygfx.Color | tuple = "w", background_color: str | pygfx.Color | tuple = (0.1, 0.1, 0.3, 0.95), outline_color: str | pygfx.Color | tuple = (0.8, 0.8, 1.0, 1.0), padding: tuple[float, float] = (5, 5), ): """ Create a Textbox Parameters ---------- font_size: int, default 12 text font size text_color: str | pygfx.Color | tuple, default "w" text color, interpretable by pygfx.Color background_color: str | pygfx.Color | tuple, default (0.1, 0.1, 0.3, 0.95), background color, interpretable by pygfx.Color outline_color: str | pygfx.Color | tuple, default (0.8, 0.8, 1.0, 1.0) outline color, interpretable by pygfx.Color padding: (float, float), default (5, 5) the amount of pixels in (x, y) by which to extend the rectangle behind the text """ # text object self._text = pygfx.Text( text="", font_size=font_size, screen_space=False, # these are added to the overlay render pass so it will actually be in screen space! anchor="bottom-left", material=pygfx.TextMaterial( alpha_mode="blend", aa=True, render_queue=RenderQueue.overlay, color=text_color, depth_write=False, depth_test=False, pick_write=False, ), ) # plane for the background of the text object geometry = pygfx.plane_geometry(1, 1) material = pygfx.MeshBasicMaterial( alpha_mode="blend", render_queue=RenderQueue.overlay, color=background_color, depth_write=False, depth_test=False, ) self._plane = pygfx.Mesh(geometry, material) # line to outline the plane mesh self._line = pygfx.Line( geometry=pygfx.Geometry( positions=np.array( [ [0, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0], ], dtype=np.float32, ) ), material=pygfx.LineThinMaterial( alpha_mode="blend", render_queue=RenderQueue.overlay, thickness=1.0, color=outline_color, depth_write=False, depth_test=False, ), ) # Plane gets rendered before text and line self._plane.render_order = -1 self._fpl_world_object = pygfx.Group() self._fpl_world_object.add(self._plane, self._text, self._line) # padded to bbox so the background box behind the text extends a bit further # making the text easier to read self._padding = np.zeros(shape=(2, 3), dtype=np.float32) self.padding = padding # position of the tooltip in screen space self._position = np.array([0.0, 0.0]) @property def position(self) -> np.ndarray: """position of the tooltip in screen space""" return self._position @property def font_size(self): """Get or set font size""" return self._text.font_size @font_size.setter def font_size(self, size: float): self._text.font_size = size @property def text_color(self): """Get or set text color using a str or RGB(A) array""" return self._text.material.color @text_color.setter def text_color(self, color: str | tuple | list | np.ndarray): self._text.material.color = color @property def background_color(self): """Get or set background color using a str or RGB(A) array""" return self._plane.material.color @background_color.setter def background_color(self, color: str | tuple | list | np.ndarray): self._plane.material.color = color @property def outline_color(self): """Get or set outline color using a str or RGB(A) array""" return self._line.material.color @outline_color.setter def outline_color(self, color: str | tuple | list | np.ndarray): self._line.material.color = color @property def padding(self) -> np.ndarray: """ Get or set the background padding in number of pixels. The padding defines the number of pixels around the tooltip text that the background is extended by. """ return self.padding[0, :2].copy() @padding.setter def padding(self, padding_xy: tuple[float, float]): self._padding[0, :2] = padding_xy self._padding[1, :2] = -np.asarray(padding_xy) @property def visible(self) -> bool: """get or set the visibility""" return self._fpl_world_object.visible @visible.setter def visible(self, visible: bool): self._fpl_world_object.visible = visible def display(self, position: tuple[float, float], info: str): """ display at the given position in screen space Parameters ---------- position: tuple[float, float] (x, y) position in screen space info: str tooltip text to display """ # set the text and top left position of the tooltip self.visible = True self._text.set_text(info) self._draw_tooltip(position) self._position[:] = position def _draw_tooltip(self, pos: tuple[float, float]): """ Sets the positions of the world objects so it's draw at the given position Parameters ---------- pos: [float, float] position in screen space """ if np.array_equal(self.position, pos): return # need to flip due to inverted y x, y = pos[0], pos[1] # put the tooltip slightly to the top right of the cursor positoin x += 8 y -= 8 self._text.world.position = (x, -y, 0) bbox = self._text.get_world_bounding_box() - self._padding [[x0, y0, _], [x1, y1, _]] = bbox self._plane.geometry.positions.data[masks.x0] = x0 self._plane.geometry.positions.data[masks.x1] = x1 self._plane.geometry.positions.data[masks.y0] = y0 self._plane.geometry.positions.data[masks.y1] = y1 self._plane.geometry.positions.update_range() # line points pts = [[x0, y0], [x0, y1], [x1, y1], [x1, y0], [x0, y0]] self._line.geometry.positions.data[:, :2] = pts self._line.geometry.positions.update_range() def clear(self, *args): """clear the text box and make it invisible""" self._text.set_text("") self._fpl_world_object.visible = False class Tooltip(TextBox): def __init__(self): super().__init__() self._enabled: bool = True self._continuous_update = False self.visible = False @property def enabled(self) -> bool: """enable or disable the tooltip""" return self._enabled @enabled.setter def enabled(self, value: bool): self._enabled = bool(value) if not self.enabled: self.visible = False @property def continuous_update(self) -> bool: """update the tooltip on every render""" return self._continuous_update @continuous_update.setter def continuous_update(self, value: bool): self._continuous_update = bool(value) |
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