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Merge pull request #46829 from akien-mga/3.2-camera2d-update-on-viewport-resize

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Camera2D: Update scrolls when the Viewport is resized
This commit is contained in:
Rémi Verschelde 2021-03-10 14:22:11 +01:00 committed by GitHub
commit 71f3d93966
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 30 additions and 32 deletions
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61
scene/2d/camera_2d.cpp
View file

@ -75,6 +75,27 @@ void Camera2D::_update_process_mode() {
}
}
void Camera2D::_setup_viewport() {
// Disconnect signal on previous viewport if there's one.
if (viewport && viewport->is_connected("size_changed", this, "_update_scroll")) {
viewport->disconnect("size_changed", this, "_update_scroll");
}
if (custom_viewport && ObjectDB::get_instance(custom_viewport_id)) {
viewport = custom_viewport;
} else {
viewport = get_viewport();
}
RID vp = viewport->get_viewport_rid();
group_name = "__cameras_" + itos(vp.get_id());
canvas_group_name = "__cameras_c" + itos(canvas.get_id());
add_to_group(group_name);
add_to_group(canvas_group_name);
viewport->connect("size_changed", this, "_update_scroll");
}
void Camera2D::set_zoom(const Vector2 &p_zoom) {
// Setting zoom to zero causes 'affine_invert' issues
ERR_FAIL_COND_MSG(Math::is_zero_approx(p_zoom.x) || Math::is_zero_approx(p_zoom.y), "Zoom level must be different from 0 (can be negative).");
@ -203,15 +224,7 @@ Transform2D Camera2D::get_camera_transform() {
if (rotating) {
xform.set_rotation(angle);
}
xform.set_origin(screen_rect.position /*.floor()*/);
/*
if (0) {
xform = get_global_transform() * xform;
} else {
xform.elements[2]+=get_global_transform().get_origin();
}
*/
xform.set_origin(screen_rect.position);
return (xform).affine_inverse();
}
@ -235,20 +248,9 @@ void Camera2D::_notification(int p_what) {
} break;
case NOTIFICATION_ENTER_TREE: {
if (custom_viewport && ObjectDB::get_instance(custom_viewport_id)) {
viewport = custom_viewport;
} else {
viewport = get_viewport();
}
canvas = get_canvas();
RID vp = viewport->get_viewport_rid();
group_name = "__cameras_" + itos(vp.get_id());
canvas_group_name = "__cameras_c" + itos(canvas.get_id());
add_to_group(group_name);
add_to_group(canvas_group_name);
_setup_viewport();
_update_process_mode();
_update_scroll();
@ -262,6 +264,9 @@ void Camera2D::_notification(int p_what) {
viewport->set_canvas_transform(Transform2D());
}
}
if (viewport) {
viewport->disconnect("size_changed", this, "_update_scroll");
}
remove_from_group(group_name);
remove_from_group(canvas_group_name);
viewport = NULL;
@ -624,17 +629,7 @@ void Camera2D::set_custom_viewport(Node *p_viewport) {
}
if (is_inside_tree()) {
if (custom_viewport)
viewport = custom_viewport;
else
viewport = get_viewport();
RID vp = viewport->get_viewport_rid();
group_name = "__cameras_" + itos(vp.get_id());
canvas_group_name = "__cameras_c" + itos(canvas.get_id());
add_to_group(group_name);
add_to_group(canvas_group_name);
_setup_viewport();
}
}
@ -811,6 +806,8 @@ Camera2D::Camera2D() {
smoothing_enabled = false;
smoothing_active = false;
limit_smoothing_enabled = false;
viewport = NULL;
custom_viewport = NULL;
custom_viewport_id = 0;
process_mode = CAMERA2D_PROCESS_IDLE;

1
scene/2d/camera_2d.h
View file

@ -84,6 +84,7 @@ protected:
Point2 camera_screen_center;
void _update_process_mode();
void _update_scroll();
void _setup_viewport();
void _make_current(Object *p_which);
void _set_current(bool p_current);