171 lines
5.4 KiB
Python
171 lines
5.4 KiB
Python
# Python imports
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# Lib imports
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import gi
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gi.require_version('Gtk', '3.0')
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gi.require_version('Gdk', '3.0')
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from gi.repository import Gtk
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from gi.repository import Gdk
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from gi.repository import GdkPixbuf
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# Application imports
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class ImageView(Gtk.Image):
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def __init__(self):
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super(ImageView, self).__init__()
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self.pixbuf = None
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self.work_pixbuf = None
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self.animation = None
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self.fit_to_win = True
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self._setup_styling()
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self._setup_signals()
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self._subscribe_to_events()
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self._load_widgets()
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self.show_all()
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def _setup_styling(self):
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...
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def _setup_signals(self):
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...
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def _subscribe_to_events(self):
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event_system.subscribe("zoom_out", self._zoom_out)
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event_system.subscribe("handle_file_from_dnd", self._handle_file_from_dnd)
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event_system.subscribe("vertical_flip", self._vertical_flip)
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event_system.subscribe("rotate_left", self._rotate_left)
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event_system.subscribe("scale_1_two_1", self._scale_1_two_1)
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event_system.subscribe("fit_to_container", self._fit_to_container)
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event_system.subscribe("horizontal_flip", self._horizontal_flip)
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event_system.subscribe("rotate_right", self._rotate_right)
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event_system.subscribe("zoom_in", self._zoom_in)
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event_system.subscribe("size_allocate", self._size_allocate)
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def _load_widgets(self):
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...
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def _handle_file_from_dnd(self, path = None):
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logger.debug(f"Loading image from: {path}")
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self.load_path(path)
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if self.animation:
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logger.debug("Start animation stub...")
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def load_path(self, path):
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self.pixbuf = None
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self.work_pixbuf = None
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self.animation = None
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if path.endswith(".gif"):
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try:
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self.animation = Gtk.Image.new_from_file(path).get_animation()
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except Exception:
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self.animation = Gtk.Image.new_from_resource(path).get_animation()
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return
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try:
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self.work_pixbuf = Gtk.Image.new_from_file(path).get_pixbuf()
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except Exception:
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self.work_pixbuf = Gtk.Image.new_from_resource(path).get_pixbuf()
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self.pixbuf = self.work_pixbuf
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self.set_from_pixbuf(self.work_pixbuf)
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if self.fit_to_win:
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self._fit_to_container()
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event_system.emit("update_path_label", (path,))
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def _zoom_out(self):
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if self.work_pixbuf:
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# TODO: Setup scale factor setting to pull from settings...
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stepx = self.work_pixbuf.get_width() * 0.05
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stepy = self.work_pixbuf.get_height() * 0.05
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w = self.work_pixbuf.get_width() - stepx
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h = self.work_pixbuf.get_height() - stepy
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self.work_pixbuf = self.pixbuf.scale_simple(w, h, 2) # 2 = BILINEAR and is best by default
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self.set_from_pixbuf(self.work_pixbuf)
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def _rotate_left(self):
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if self.work_pixbuf:
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self.work_pixbuf = self.work_pixbuf.rotate_simple(GdkPixbuf.PixbufRotation.COUNTERCLOCKWISE)
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self.pixbuf = self.pixbuf.rotate_simple(GdkPixbuf.PixbufRotation.COUNTERCLOCKWISE)
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self.set_from_pixbuf(self.work_pixbuf)
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def _vertical_flip(self):
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if self.work_pixbuf:
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self.work_pixbuf = self.work_pixbuf.flip(True)
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self.pixbuf = self.pixbuf.flip(True)
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self.set_from_pixbuf(self.work_pixbuf)
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def _scale_1_two_1(self):
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self.fit_to_win = False
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if self.work_pixbuf:
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self.work_pixbuf = self.pixbuf
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self.set_from_pixbuf(self.work_pixbuf)
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def _fit_to_container(self):
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self.fit_to_win = True
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if self.work_pixbuf:
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parent_aloc = self.get_parent().get_parent().get_allocation()
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pw = parent_aloc.width
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ph = parent_aloc.height
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iw = self.pixbuf.get_width()
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ih = self.pixbuf.get_height()
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w = 0
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h = 0
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if iw == 0 or ih == 0:
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return
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w = pw;
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h = ((ih * w) / iw + 0.5)
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if h > ph:
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h = ph
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w = (iw * h) / ih + 0.5
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self.work_pixbuf = self.pixbuf.scale_simple(w, h, 2) # 2 = BILINEAR and is best by default
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self.set_from_pixbuf(self.work_pixbuf)
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def _horizontal_flip(self):
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if self.work_pixbuf:
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self.work_pixbuf = self.work_pixbuf.flip(False)
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self.pixbuf = self.pixbuf.flip(False)
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self.set_from_pixbuf(self.work_pixbuf)
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def _rotate_right(self):
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if self.work_pixbuf:
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self.work_pixbuf = self.work_pixbuf.rotate_simple(GdkPixbuf.PixbufRotation.CLOCKWISE)
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self.pixbuf = self.pixbuf.rotate_simple(GdkPixbuf.PixbufRotation.CLOCKWISE)
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self.set_from_pixbuf(self.work_pixbuf)
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def _zoom_in(self):
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if self.work_pixbuf:
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# TODO: Setup scale factor setting to pull from settings...
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stepx = self.work_pixbuf.get_width() * 0.05
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stepy = self.work_pixbuf.get_height() * 0.05
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w = self.work_pixbuf.get_width() + stepx
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h = self.work_pixbuf.get_height() + stepy
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self.work_pixbuf = self.pixbuf.scale_simple(w, h, 2) # 2 = BILINEAR and is best by default
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self.set_from_pixbuf(self.work_pixbuf)
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def _size_allocate(self):
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if self.fit_to_win:
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self._fit_to_container()
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