diff options
| author | Aleksey Lim <alsroot@member.fsf.org> | 2009-06-04 09:06:59 (GMT) |
|---|---|---|
| committer | Aleksey Lim <alsroot@member.fsf.org> | 2009-06-04 09:06:59 (GMT) |
| commit | f3ea522e3195f969ce31633d28889a8f4718c697 (patch) | |
| tree | 7bb8e9bd9a6adf1fc2ff1afa48526514431bc6c6 /Area.py | |
| parent | cc3291a8dd7a458ec06a5ae74a63f500081cdf84 (diff) | |
Make transition smoother in keep ratio selection
Diffstat (limited to 'Area.py')
| -rw-r--r-- | Area.py | 31 |
1 files changed, 13 insertions, 18 deletions
@@ -381,15 +381,7 @@ class Area(gtk.DrawingArea): elif self.tool['name'] == 'marquee-rectangular' and not self.selmove: if state & gtk.gdk.CONTROL_MASK: - xdiff = abs(coords[0] - self.oldx) - ydiff = abs(coords[1] - self.oldy) - if xdiff >= ydiff: - y = self.oldy + xdiff - x = coords[0] - else: - x = self.oldx + ydiff - y = coords[1] - coords = (x, y) + coords = self._keep_selection_ratio(coords) self.d.selection(widget,coords) # selected elif self.tool['name'] == 'marquee-rectangular' and self.selmove: @@ -473,15 +465,7 @@ class Area(gtk.DrawingArea): elif self.tool['name'] == 'marquee-rectangular': if self.selmove == False: if event.state & gtk.gdk.CONTROL_MASK: - xdiff = abs(coords[0] - self.oldx) - ydiff = abs(coords[1] - self.oldy) - if xdiff >= ydiff: - y = self.oldy + xdiff - x = coords[0] - else: - x = self.oldx + ydiff - y = coords[1] - coords = (x, y) + coords = self._keep_selection_ratio(coords) self.d.selection(widget,coords,False) self.window.set_cursor(gtk.gdk.Cursor(gtk.gdk.FLEUR)) self.selmove = True @@ -1146,3 +1130,14 @@ class Area(gtk.DrawingArea): def key_release(self,widget,event): pass + + def _keep_selection_ratio(self, coords): + def sign(x): + return x and x/abs(x) or 0 + + dx = int(coords[0]) - self.oldx + dy = int(coords[1]) - self.oldy + size = max(abs(dx), abs(dy)) + + return (self.oldx + sign(dx) * size, + self.oldy + sign(dy) * size) |