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text zoom: Put a limit on the min and max zoom (#137) 

Text zoom: Put a limit on the min and max zoom
This commit is contained in:
JosephMcc 2017-08-30 03:14:43 -07:00 committed by Clement Lefebvre
parent 87eb14e9dc
commit 9376dc72da
1 changed files with 13 additions and 0 deletions
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13
plugins/textsize/textsize/documenthelper.py
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@ -24,6 +24,9 @@
from .signals import Signals from .signals import Signals
from gi.repository import Gtk, Gdk, Pango from gi.repository import Gtk, Gdk, Pango
MAX_FONT_SIZE = 30
MIN_FONT_SIZE = 5
class DocumentHelper(Signals): class DocumentHelper(Signals):
def __init__(self, view): def __init__(self, view):
Signals.__init__(self) Signals.__init__(self)
@ -94,6 +97,11 @@ class DocumentHelper(Signals):
size = description.get_size() / Pango.SCALE size = description.get_size() / Pango.SCALE
if not bounds: if not bounds:
if size >= MAX_FONT_SIZE and amount == 1:
return;
if size <= MIN_FONT_SIZE and amount == -1:
return;
description.set_size(max(1, (size + amount)) * Pango.SCALE) description.set_size(max(1, (size + amount)) * Pango.SCALE)
self._view.override_font(description) self._view.override_font(description)
@ -117,6 +125,11 @@ class DocumentHelper(Signals):
newsize = round(newsize / len(tags)) newsize = round(newsize / len(tags))
if newsize >= MAX_FONT_SIZE and amount == 1:
return;
if newsize <= MIN_FONT_SIZE and amount == -1:
return;
newsize = int(max(1, newsize)) newsize = int(max(1, newsize))
if not newsize in self._font_tags: if not newsize in self._font_tags: