965b6d94f2
Instead of saving the blurred image into a temporary file and then read it back, pass it direcly to texture via a buffer.
136 lines
4.7 KiB
Python
136 lines
4.7 KiB
Python
# game_cover.py
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#
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# Copyright 2022-2023 kramo
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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from io import BytesIO
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from pathlib import Path
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from typing import Optional
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from gi.repository import Gdk, GdkPixbuf, Gio, GLib, Gtk
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from PIL import Image, ImageFilter, ImageStat
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from cartridges import shared
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class GameCover:
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texture: Optional[Gdk.Texture]
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blurred: Optional[Gdk.Texture]
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luminance: Optional[tuple[float, float]]
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path: Optional[Path]
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animation: Optional[GdkPixbuf.PixbufAnimation]
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anim_iter: Optional[GdkPixbuf.PixbufAnimationIter]
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placeholder = Gdk.Texture.new_from_resource(
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shared.PREFIX + "/library_placeholder.svg"
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)
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placeholder_small = Gdk.Texture.new_from_resource(
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shared.PREFIX + "/library_placeholder_small.svg"
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)
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def __init__(self, pictures: set[Gtk.Picture], path: Optional[Path] = None) -> None:
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self.pictures = pictures
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self.new_cover(path)
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def new_cover(self, path: Optional[Path] = None) -> None:
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self.animation = None
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self.texture = None
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self.blurred = None
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self.luminance = None
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self.path = path
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if path:
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if path.suffix == ".gif":
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self.animation = GdkPixbuf.PixbufAnimation.new_from_file(str(path))
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self.anim_iter = self.animation.get_iter()
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self.task = Gio.Task.new()
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self.task.run_in_thread(
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lambda *_: self.update_animation((self.task, self.animation))
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)
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else:
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self.texture = Gdk.Texture.new_from_filename(str(path))
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if not self.animation:
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self.set_texture(self.texture)
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def get_texture(self) -> Gdk.Texture:
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return (
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Gdk.Texture.new_for_pixbuf(self.animation.get_static_image())
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if self.animation
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else self.texture
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)
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def get_blurred(self) -> Gdk.Texture:
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if not self.blurred:
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if self.path:
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with Image.open(self.path) as image:
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image = (
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image.convert("RGB")
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.resize((100, 150))
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.filter(ImageFilter.GaussianBlur(20))
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)
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buffer = BytesIO()
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image.save(buffer, "tiff", compression=None)
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gbytes = GLib.Bytes.new(buffer.getvalue())
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self.blurred = Gdk.Texture.new_from_bytes(gbytes)
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stat = ImageStat.Stat(image.convert("L"))
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# Luminance values for light and dark mode
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self.luminance = (
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min((stat.mean[0] + stat.extrema[0][0]) / 510, 0.7),
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max((stat.mean[0] + stat.extrema[0][1]) / 510, 0.3),
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)
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else:
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self.blurred = self.placeholder_small
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self.luminance = (0.3, 0.5)
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return self.blurred
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def add_picture(self, picture: Gtk.Picture) -> None:
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self.pictures.add(picture)
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if not self.animation:
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self.set_texture(self.texture)
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else:
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self.update_animation((self.task, self.animation))
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def set_texture(self, texture: Gdk.Texture) -> None:
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self.pictures.discard(
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picture for picture in self.pictures if not picture.is_visible()
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)
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if not self.pictures:
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self.animation = None
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else:
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for picture in self.pictures:
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picture.set_paintable(texture or self.placeholder)
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picture.queue_draw()
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def update_animation(self, data: GdkPixbuf.PixbufAnimation) -> None:
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if self.animation == data[1]:
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self.anim_iter.advance() # type: ignore
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self.set_texture(Gdk.Texture.new_for_pixbuf(self.anim_iter.get_pixbuf())) # type: ignore
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delay_time = self.anim_iter.get_delay_time() # type: ignore
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GLib.timeout_add(
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20 if delay_time < 20 else delay_time,
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self.update_animation,
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data,
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)
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