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Fix inspector window panning speed

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Consistently use integers for mouse movement and compensate for image
scale.
This commit is contained in:
Lawrence Lee
2021-05-01 15:52:45 -07:00
parent 5decec5405
commit e25cb3fde0
1 changed files with 7 additions and 5 deletions
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12
rtgui/inspector.cc
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@@ -227,13 +227,15 @@ bool Inspector::on_motion_notify_event(GdkEventMotion *event)
return false;
int deviceScale = get_scale_factor();
int delta_x = (button_pos.x - event->x)*deviceScale;
int delta_y = (button_pos.y - event->y)*deviceScale;
int event_x = round(event->x);
int event_y = round(event->y);
int delta_x = (button_pos.x - event_x) * deviceScale;
int delta_y = (button_pos.y - event_y) * deviceScale;
int imW = currImage->imgBuffer.getWidth();
int imH = currImage->imgBuffer.getHeight();
moveCenter(delta_x, delta_y, imW, imH, deviceScale);
button_pos.set(event->x, event->y);
button_pos.set(event_x, event_y);
if (!dirty) {
dirty = true;
@@ -316,8 +318,8 @@ void Inspector::moveCenter(int delta_x, int delta_y, int imW, int imH, int devic
rtengine::Coord margin; // limit to image size
margin.x = rtengine::min<int>(window->get_width() * deviceScale / scale, imW) / 2;
margin.y = rtengine::min<int>(window->get_height() * deviceScale / scale, imH) / 2;
center.set(rtengine::LIM<int>(center.x + delta_x, margin.x, imW - margin.x),
rtengine::LIM<int>(center.y + delta_y, margin.y, imH - margin.y));
center.set(rtengine::LIM<double>(center.x + delta_x / scale, margin.x, imW - margin.x),
rtengine::LIM<double>(center.y + delta_y / scale, margin.y, imH - margin.y));
}
void Inspector::beginZoom(double x, double y)