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Let inspector window zoom on scroll wheel events (#5867)

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A scroll wheel should emit GDK_SCROLL_UP/DOWN/LEFT_RIGHT.
The ALT key is left as backup in case a scroll wheel emits GDK_SCROLL_SMOOTH
that results in panning (used with trackpads).
This commit is contained in:
rfranke
2020-08-04 18:39:01 +02:00
parent e82c787369
commit 691523d8dd
1 changed files with 4 additions and 0 deletions
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4
rtgui/inspector.cc
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@@ -225,15 +225,19 @@ bool Inspector::on_scroll_event(GdkEventScroll *event)
break;
case GDK_SCROLL_DOWN:
delta_y = step_y * deviceScale * imH / 100;
alt = true; // zoom for non smooth scroll events (scroll wheel)
break;
case GDK_SCROLL_UP:
delta_y = -step_y * deviceScale * imH / 100;
alt = true; // zoom for non smooth scroll events (scroll wheel)
break;
case GDK_SCROLL_LEFT:
delta_x = step_x * deviceScale * imW / 100;
alt = true; // zoom for non smooth scroll events (scroll wheel)
break;
case GDK_SCROLL_RIGHT:
delta_x = -step_x * deviceScale * imW / 100;
alt = true; // zoom for non smooth scroll events (scroll wheel)
break;
}