void AbsoluteLayout::onDraw(Canvas *c) {
// draw all views in this ViewGroup
std::list<View*>* views = this->getViews();
for(std::list<View*>::iterator it = views->begin(); it != views->end(); it++) {
// create canvas for view
Canvas canvas_view((*it)->getPreferredWidth(), (*it)->getPreferredHeight());
// render the view
(*it)->onDraw(&canvas_view);
// draw view's canvas on this layout's canvas
c->drawCanvas(&canvas_view, (*it)->getPosX(), (*it)->getPosY());
}
}
TEST(container_view_test, drawing_a_container_with_views_draws_the_views)
{
terminalpp::ui::models::default_image_model model00;
terminalpp::ui::models::default_image_model model10;
terminalpp::ui::models::default_image_model model20;
terminalpp::ui::models::default_image_model model01;
terminalpp::ui::models::default_image_model model11;
terminalpp::ui::models::default_image_model model21;
model00.set_content({{'0'}});
model10.set_content({{'1'}});
model20.set_content({{'2'}});
model01.set_content({{'3'}});
model11.set_content({{'4'}});
model21.set_content({{'5'}});
terminalpp::ui::models::container_model container_model{
terminalpp::ui::models::default_container_model{}};
container_model.set_layout(terminalpp::ui::layouts::grid_layout({3, 2}));
container_model.add(terminalpp::ui::views::image_view{model00}, {});
container_model.add(terminalpp::ui::views::image_view{model10}, {});
container_model.add(terminalpp::ui::views::image_view{model20}, {});
container_model.add(terminalpp::ui::views::image_view{model01}, {});
container_model.add(terminalpp::ui::views::image_view{model11}, {});
container_model.add(terminalpp::ui::views::image_view{model21}, {});
terminalpp::ui::views::container_view container_view{
container_model};
terminalpp::ui::view view{container_view};
view.set_size({3, 2});
terminalpp::canvas canvas({3, 2});
terminalpp::canvas_view canvas_view(canvas);
terminalpp::ui::draw_context dc{
terminalpp::ui::views::default_draw_context{canvas_view}};
view.draw(dc, {{}, canvas.size()});
ASSERT_EQ(terminalpp::element{'0'}, canvas[0][0]);
ASSERT_EQ(terminalpp::element{'1'}, canvas[1][0]);
ASSERT_EQ(terminalpp::element{'2'}, canvas[2][0]);
ASSERT_EQ(terminalpp::element{'3'}, canvas[0][1]);
ASSERT_EQ(terminalpp::element{'4'}, canvas[1][1]);
ASSERT_EQ(terminalpp::element{'5'}, canvas[2][1]);
}
TEST(container_view_test, drawing_a_container_with_no_views_draws_nothing)
{
terminalpp::ui::view view{
terminalpp::ui::views::container_view{}};
view.set_size({3, 2});
terminalpp::canvas canvas({3, 2});
terminalpp::canvas_view canvas_view(canvas);
terminalpp::ui::draw_context dc{
terminalpp::ui::views::default_draw_context{canvas_view}};
view.draw(dc, {{}, canvas.size()});
auto blank_element = terminalpp::element();
ASSERT_EQ(blank_element, canvas[0][0]);
ASSERT_EQ(blank_element, canvas[1][0]);
ASSERT_EQ(blank_element, canvas[2][0]);
ASSERT_EQ(blank_element, canvas[0][1]);
ASSERT_EQ(blank_element, canvas[1][1]);
ASSERT_EQ(blank_element, canvas[2][1]);
}
