[Automatically Center Logo, Title, and Subtitle] Centers logo, title, and subtitle based on whether logo, title, or subtitle is hidden. #after_effects #scale #center #position #horizontal #vertical #logo #title #subtitle

automatically_center_logo_title_subtitle.js

var extra_horizontal_margin_composition = comp("Preview");
var extra_horizontal_margin_layer = extra_horizontal_margin_composition.layer("Controller - All Objects");
var extra_horizontal_margin_effect = extra_horizontal_margin_layer.effect("Extra Horizontal Margin");
var extra_horizontal_margin_slider = extra_horizontal_margin_effect("Slider");

var extra_vertical_margin_composition = comp("Preview");
var extra_vertical_margin_layer = extra_vertical_margin_composition.layer("Controller - All Objects");
var extra_vertical_margin_effect = extra_vertical_margin_layer.effect("Extra Vertical Margin");
var extra_vertical_margin_slider = extra_vertical_margin_effect("Slider");

var scale_composition = comp("Preview");
var scale_layer = scale_composition.layer("Controller - All Objects");
var scale_effect = scale_layer.effect("Scale");
var scale_slider = scale_effect("Slider");
    scale_slider = scale_slider / 100;

var horizontal_flip_composition = comp("Preview");
var horizontal_flip_layer = horizontal_flip_composition.layer("Controller - All Objects");
var horizontal_flip_effect = horizontal_flip_layer.effect("Horizontal Flip");
var horizontal_flip_checkbox = horizontal_flip_effect("Checkbox");
    horizontal_flip_checkbox = horizontal_flip_checkbox == 1 ? -1 : 1;

var logo_composition = comp("Preview");
var logo_layer = logo_composition.layer("Controller - All Objects");
var logo_effect = logo_layer.effect("Logo");
var logo_checkbox = logo_effect("Checkbox");

var title_composition = comp("Preview");
var title_layer = title_composition.layer("Controller - All Objects");
var title_effect = title_layer.effect("Title");
var title_checkbox = title_effect("Checkbox");

var subtitle_composition = comp("Preview");
var subtitle_layer = subtitle_composition.layer("Controller - All Objects");
var subtitle_effect = subtitle_layer.effect("Subtitle");
var subtitle_checkbox = subtitle_effect("Checkbox");

var object_composition = comp("Center");
var object_layer = object_composition.layer("Center Object");
var object_rectangle = object_layer.sourceRectAtTime();
var object_width = logo_checkbox == 1 ? object_rectangle.width : 0;
var object_height = logo_checkbox == 1 ? object_rectangle.height : 0;

var text_1_composition = comp("Center");
var text_1_layer = text_1_composition.layer("Title");
var text_1_properties = text_1_layer.text;
var text_1_source = text_1_properties.sourceText;
var text_1_style = text_1_source.style;
var text_1_size = text_1_style.fontSize;
var text_1_leading = text_1_style.autoLeading ? (text_1_size * 1.2) : text_1_style.leading;
var text_1_rectangle = text_1_layer.sourceRectAtTime();
var text_1_width = title_checkbox == 1 ? text_1_rectangle.width : 0;
var text_1_height = title_checkbox == 1 ? text_1_rectangle.height : 0;
var text_1_hidden = text_1_rectangle.height;
var text_1_lines = title_checkbox == 1 ? Math.ceil(text_1_height / text_1_leading) : 0;
var text_1_lines_height = text_1_lines > 0 && title_checkbox == 1 ? text_1_size * text_1_lines : 0;
var text_1_x_height = text_1_lines > 0 && title_checkbox == 1 ? text_1_height / text_1_lines : 0;

var text_2_composition = comp("Center");
var text_2_layer = text_2_composition.layer("Subtitle");
var text_2_properties = text_2_layer.text;
var text_2_source = text_2_properties.sourceText;
var text_2_style = text_2_source.style;
var text_2_size = text_2_style.fontSize;
var text_2_leading = text_2_style.autoLeading ? (text_2_size * 1.2) : text_2_style.leading;
var text_2_rectangle = text_2_layer.sourceRectAtTime();
var text_2_width = subtitle_checkbox == 1 ? text_2_rectangle.width : 0;
var text_2_height = subtitle_checkbox == 1 ? text_2_rectangle.height : 0;
var text_2_hidden = text_2_rectangle.height;
var text_2_lines = subtitle_checkbox == 1 ? Math.ceil(text_2_height / text_2_leading) : 0;
var text_2_lines_height = text_2_lines > 0 && subtitle_checkbox == 1 ? text_2_size * text_2_lines : 0;
var text_2_x_height = text_2_lines > 0 && subtitle_checkbox == 1 ? text_2_height / text_2_lines : 0;

var center_composition = comp("Center");
var center_composition_width = center_composition.width;
var center_composition_height = center_composition.height;
var center_composition_x_value = center_composition_width / 2;
var center_composition_y_value = center_composition_height / 2;
var center_height = text_1_height + text_2_height;
    center_height = title_checkbox == 1 && subtitle_checkbox == 1 ? center_height + (text_2_size / 2) : center_height;
var center_hidden = text_1_hidden + text_2_hidden + (text_2_size / 2);
    center_hidden = object_height > center_hidden ? center_hidden / object_height : object_height / center_hidden;
var center_scale = object_height > center_height ? center_height / object_height : object_height / center_height;
    center_scale = title_checkbox == 1 || subtitle_checkbox == 1 ? center_scale : center_hidden;
    center_scale = scale_slider == 1.0 ? center_scale : center_scale * scale_slider;
var center_width = text_1_width > text_2_width ? text_1_width + (object_width * center_scale) : text_2_width + (object_width * center_scale);
    center_width = logo_checkbox == 1 && title_checkbox == 1 || logo_checkbox == 1 && subtitle_checkbox == 1 ? center_width + (text_2_size / 2) : center_width;

var logo_x_value = center_composition_x_value - (center_width / 2) + (object_width * center_scale / 2);
    logo_x_value = logo_x_value + extra_horizontal_margin_slider;
var logo_y_value = center_composition_y_value;
    logo_y_value = logo_y_value + extra_vertical_margin_slider;
var logo_horizontal_scale = logo_checkbox == 1 ? (center_scale * 100) * horizontal_flip_checkbox : 0;
var logo_vertical_scale = logo_checkbox == 1 ? center_scale * 100 : 0;

var title_x_value = center_composition_x_value - (center_width / 2) + (object_width * center_scale) + (text_2_size / 2 * logo_checkbox);
    title_x_value = title_x_value + extra_horizontal_margin_slider;
var title_y_value = center_composition_y_value - (center_height / 2) + text_1_height;
    title_y_value = title_y_value + extra_vertical_margin_slider;
var title_horizontal_scale = title_checkbox == 1 ? 100 : 0;
var title_vertical_scale = title_checkbox == 1 ? 100 : 0;

var subtitle_x_value = center_composition_x_value - (center_width / 2) + (object_width * center_scale) + (text_2_size / 2 * logo_checkbox);
    subtitle_x_value = subtitle_x_value + extra_horizontal_margin_slider;
var subtitle_y_value = center_composition_y_value + (center_height / 2) - text_2_height;
    subtitle_y_value = subtitle_y_value + extra_vertical_margin_slider;
var subtitle_horizontal_scale = subtitle_checkbox == 1 ? 100 : 0;
var subtitle_vertical_scale = subtitle_checkbox == 1 ? 100 : 0;

[logo_x_value, logo_y_value];
[logo_horizontal_scale, logo_vertical_scale];
[title_x_value, title_y_value];
[title_horizontal_scale, title_vertical_scale];
[subtitle_x_value, subtitle_y_value];
[subtitle_horizontal_scale, subtitle_vertical_scale];