void ListBoxView::layout_children(Canvas &canvas)
{
// Call parent.
ScrollView::layout_children(canvas);
// Content of the ListBoxView.
auto items(content_view()->children());
// Scroll to selected item if it needs.
if (needScrollToSelected) {
// Geometry of the selected item.
const Rectf boxOfSelected = items.at(impl->selected_item)->geometry().margin_box();
// Scroll position.
double scrollPos = scrollbar_y_view()->position();
// If the selected item above the visible area, scroll up to selected.
if (boxOfSelected.top < scrollPos)
scrollbar_y_view()->set_position(boxOfSelected.top);
else {
// If the lower part of selected item below the visible area, scroll down.
if (boxOfSelected.bottom > scrollPos + geometry().content_height)
scrollbar_y_view()->set_position(boxOfSelected.bottom - geometry().content_height);
}
// Clear the flag.
needScrollToSelected = false;
// Call parent again to update the scrolled positions.
ScrollView::layout_children(canvas);
}
// Set line_step size equal to the height of first item.
if (!items.empty()) {
float height = items.front()->geometry().margin_box().get_height();
scrollbar_y_view()->set_line_step(height);
}
}
ThemeScrollView::ThemeScrollView()
{
scrollbar_x_view()->style()->set("flex: 0 0 main-size");
scrollbar_x_view()->style()->set("background: rgb(232, 232, 236)");
scrollbar_x_view()->track()->style()->set("border-image-slice: 4 0 3 0 fill;");
scrollbar_x_view()->track()->style()->set("border-image-width:4px 0px 3px 0px;");
scrollbar_x_view()->track()->style()->set("border-image-repeat:stretch;");
scrollbar_x_view()->track()->style()->set("border-image-source:url('Theme/scrollbar_hori_track_normal.png');");
scrollbar_x_view()->track()->style("hot")->set("border-image-source:url('Theme/scrollbar_hori_track_hot.png');");
scrollbar_x_view()->track()->style("pressed")->set("border-image-source:url('Theme/scrollbar_hori_track_pressed.png');");
scrollbar_x_view()->track()->style("disabled")->set("border-image-source:url('Theme/scrollbar_hori_track_disabled.png');");
scrollbar_x_view()->thumb()->style()->set("border-image-slice: 5 5 5 5 fill;");
scrollbar_x_view()->thumb()->style()->set("border-image-width:5px 5px 5px 5px;");
scrollbar_x_view()->thumb()->style()->set("border-image-repeat:stretch;");
scrollbar_x_view()->thumb()->style()->set("border-image-source:url('Theme/scrollbar_hori_thumb_normal.png');");
scrollbar_x_view()->thumb()->style("hot")->set("border-image-source:url('Theme/scrollbar_hori_thumb_hot.png');");
scrollbar_x_view()->thumb()->style("pressed")->set("border-image-source:url('Theme/scrollbar_hori_thumb_pressed.png');");
scrollbar_x_view()->thumb()->style("disabled")->set("border-image-source:url('Theme/scrollbar_hori_thumb_disabled.png');");
scrollbar_x_view()->thumb_grip()->style()->set("background-position:center center;");
scrollbar_x_view()->thumb_grip()->style()->set("background-repeat:no-repeat;");
scrollbar_x_view()->thumb_grip()->style()->set("background-attachment:scroll; ");
scrollbar_x_view()->thumb_grip()->style()->set("background-image:url('Theme/scrollbar_hori_thumb_gripper_normal.png');");
scrollbar_x_view()->thumb_grip()->style("hot")->set("background-image:url('Theme/scrollbar_hori_thumb_gripper_hot.png');");
scrollbar_x_view()->thumb_grip()->style("pressed")->set("background-image:url('Theme/scrollbar_hori_thumb_gripper_pressed.png');");
scrollbar_x_view()->thumb_grip()->style("disabled")->set("background-image:url('Theme/scrollbar_hori_thumb_gripper_disabled.png');");
scrollbar_x_view()->button_decrement()->style()->set("width:17px; height:17px");
scrollbar_x_view()->button_decrement()->style()->set("border-image-slice: 3 3 3 3 fill;");
scrollbar_x_view()->button_decrement()->style()->set("border-image-width:3px 3px 3px 3px;");
scrollbar_x_view()->button_decrement()->style()->set("border-image-repeat:stretch;");
scrollbar_x_view()->button_decrement()->style()->set("border-image-source:url('Theme/scrollbar_hori_button_left_normal_withglyph.png');");
scrollbar_x_view()->button_decrement()->style("hot")->set("border-image-source:url('Theme/scrollbar_hori_button_left_hot_withglyph.png');");
scrollbar_x_view()->button_decrement()->style("pressed")->set("border-image-source:url('Theme/scrollbar_hori_button_left_pressed_withglyph.png');");
scrollbar_x_view()->button_decrement()->style("disabled")->set("border-image-source:url('Theme/scrollbar_hori_button_left_disabled_withglyph.png');");
scrollbar_x_view()->button_increment()->style()->set("width:17px; height:17px");
scrollbar_x_view()->button_increment()->style()->set("border-image-slice: 3 3 3 3 fill;");
scrollbar_x_view()->button_increment()->style()->set("border-image-width:3px 3px 3px 3px;");
scrollbar_x_view()->button_increment()->style()->set("border-image-repeat:stretch;");
scrollbar_x_view()->button_increment()->style()->set("border-image-source:url('Theme/scrollbar_hori_button_right_normal_withglyph.png');");
scrollbar_x_view()->button_increment()->style("hot")->set("border-image-source:url('Theme/scrollbar_hori_button_right_hot_withglyph.png');");
scrollbar_x_view()->button_increment()->style("pressed")->set("border-image-source:url('Theme/scrollbar_hori_button_right_pressed_withglyph.png');");
scrollbar_x_view()->button_increment()->style("disabled")->set("border-image-source:url('Theme/scrollbar_hori_button_right_disabled_withglyph.png');");
scrollbar_y_view()->style()->set("flex: 0 0 main-size");
scrollbar_y_view()->style()->set("background: rgb(232, 232, 236)");
scrollbar_y_view()->track()->style()->set("border-image-slice: 4 0 3 0 fill;");
scrollbar_y_view()->track()->style()->set("border-image-width:4px 0px 3px 0px;");
scrollbar_y_view()->track()->style()->set("border-image-repeat:stretch;");
scrollbar_y_view()->track()->style()->set("border-image-source:url('Theme/scrollbar_vert_track_normal.png');");
scrollbar_y_view()->track()->style("hot")->set("border-image-source:url('Theme/scrollbar_vert_track_hot.png');");
scrollbar_y_view()->track()->style("pressed")->set("border-image-source:url('Theme/scrollbar_vert_track_pressed.png');");
scrollbar_y_view()->track()->style("disabled")->set("border-image-source:url('Theme/scrollbar_vert_track_disabled.png');");
scrollbar_y_view()->thumb()->style()->set("border-image-slice: 5 5 5 5 fill;");
scrollbar_y_view()->thumb()->style()->set("border-image-width:5px 5px 5px 5px;");
scrollbar_y_view()->thumb()->style()->set("border-image-repeat:stretch;");
scrollbar_y_view()->thumb()->style()->set("border-image-source:url('Theme/scrollbar_vert_thumb_normal.png');");
scrollbar_y_view()->thumb()->style("hot")->set("border-image-source:url('Theme/scrollbar_vert_thumb_hot.png');");
scrollbar_y_view()->thumb()->style("pressed")->set("border-image-source:url('Theme/scrollbar_vert_thumb_pressed.png');");
scrollbar_y_view()->thumb()->style("disabled")->set("border-image-source:url('Theme/scrollbar_vert_thumb_disabled.png');");
scrollbar_y_view()->thumb_grip()->style()->set("background-position:center center;");
scrollbar_y_view()->thumb_grip()->style()->set("background-repeat:no-repeat;");
scrollbar_y_view()->thumb_grip()->style()->set("background-attachment:scroll; ");
scrollbar_y_view()->thumb_grip()->style()->set("background-image:url('Theme/scrollbar_vert_thumb_gripper_normal.png');");
scrollbar_y_view()->thumb_grip()->style("hot")->set("background-image:url('Theme/scrollbar_vert_thumb_gripper_hot.png');");
scrollbar_y_view()->thumb_grip()->style("pressed")->set("background-image:url('Theme/scrollbar_vert_thumb_gripper_pressed.png');");
scrollbar_y_view()->thumb_grip()->style("disabled")->set("background-image:url('Theme/scrollbar_vert_thumb_gripper_disabled.png');");
scrollbar_y_view()->button_decrement()->style()->set("width:17px; height:17px");
scrollbar_y_view()->button_decrement()->style()->set("border-image-slice: 3 3 3 3 fill;");
scrollbar_y_view()->button_decrement()->style()->set("border-image-width:3px 3px 3px 3px;");
scrollbar_y_view()->button_decrement()->style()->set("border-image-repeat:stretch;");
scrollbar_y_view()->button_decrement()->style()->set("border-image-source:url('Theme/scrollbar_vert_button_left_normal_withglyph.png');");
scrollbar_y_view()->button_decrement()->style("hot")->set("border-image-source:url('Theme/scrollbar_vert_button_left_hot_withglyph.png');");
scrollbar_y_view()->button_decrement()->style("pressed")->set("border-image-source:url('Theme/scrollbar_vert_button_left_pressed_withglyph.png');");
scrollbar_y_view()->button_decrement()->style("disabled")->set("border-image-source:url('Theme/scrollbar_vert_button_left_disabled_withglyph.png');");
scrollbar_y_view()->button_increment()->style()->set("width:17px; height:17px");
scrollbar_y_view()->button_increment()->style()->set("border-image-slice: 3 3 3 3 fill;");
scrollbar_y_view()->button_increment()->style()->set("border-image-width:3px 3px 3px 3px;");
scrollbar_y_view()->button_increment()->style()->set("border-image-repeat:stretch;");
scrollbar_y_view()->button_increment()->style()->set("border-image-source:url('Theme/scrollbar_vert_button_right_normal_withglyph.png');");
scrollbar_y_view()->button_increment()->style("hot")->set("border-image-source:url('Theme/scrollbar_vert_button_right_hot_withglyph.png');");
scrollbar_y_view()->button_increment()->style("pressed")->set("border-image-source:url('Theme/scrollbar_vert_button_right_pressed_withglyph.png');");
scrollbar_y_view()->button_increment()->style("disabled")->set("border-image-source:url('Theme/scrollbar_vert_button_right_disabled_withglyph.png');");
}
