Fix scroll commands when it is a smooth scroll event
Thomas Ross
3 years ago
| 4249 | 4249 | |
| 4250 | 4250 | def mousewheel_scrolled(self, widget, event): |
| 4251 | 4251 | if event.type == Gdk.EventType.SCROLL: |
| 4252 | direction = 0 | |
| 4253 | if event.direction == Gdk.ScrollDirection.UP: | |
| 4254 | direction = 1 | |
| 4255 | elif event.direction == Gdk.ScrollDirection.DOWN: | |
| 4256 | direction = -1 | |
| 4257 | elif event.direction == Gdk.ScrollDirection.SMOOTH: | |
| 4258 | __, x_delta, y_delta = event.get_scroll_deltas() | |
| 4259 | if y_delta > 0: | |
| 4260 | direction = -1 | |
| 4261 | elif y_delta < 0: | |
| 4262 | direction = 1 | |
| 4263 | ||
| 4252 | 4264 | # Zooming of the image by Ctrl-mousewheel |
| 4253 | 4265 | if event.get_state() & Gdk.ModifierType.CONTROL_MASK: |
| 4254 | if event.direction == Gdk.ScrollDirection.UP: | |
| 4266 | if direction == 1: | |
| 4255 | 4267 | self.zoom_in(None, None, None) |
| 4256 | elif event.direction == Gdk.ScrollDirection.DOWN: | |
| 4268 | elif direction == -1: | |
| 4257 | 4269 | self.zoom_out(None, None, None) |
| 4270 | ||
| 4258 | 4271 | return True |
| 4259 | 4272 | # Navigation of images with mousewheel: |
| 4260 | 4273 | else: |
| 4261 | if event.direction == Gdk.ScrollDirection.UP: | |
| 4274 | if direction == 1: | |
| 4262 | 4275 | self.goto_prev_image(None, None, None) |
| 4263 | elif event.direction == Gdk.ScrollDirection.DOWN: | |
| 4276 | elif direction == -1: | |
| 4264 | 4277 | self.goto_next_image(None, None, None) |
| 4278 | ||
| 4265 | 4279 | return True |
| 4266 | 4280 | |
| 4267 | 4281 | def mouse_moved(self, widget, event): |