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#include "../../include/gui/ScrollablePage.hpp"
#include <mglpp/window/Window.hpp>
namespace gsr {
ScrollablePage::ScrollablePage(mgl::vec2f size) : size(size) {}
bool ScrollablePage::on_event(mgl::Event &event, mgl::Window &window, mgl::vec2f offset) {
if(!visible)
return true;
const mgl::vec2f draw_pos = position + offset;
offset = draw_pos;
Widget *selected_widget = selected_child_widget;
if(selected_widget) {
if(!selected_widget->on_event(event, window, offset))
return false;
}
// Process widgets by visibility (backwards)
return widgets.for_each_reverse([selected_widget, &window, &event, offset](std::unique_ptr<Widget> &widget) {
if(widget.get() != selected_widget) {
if(!widget->on_event(event, window, offset))
return false;
}
return true;
});
}
void ScrollablePage::draw(mgl::Window &window, mgl::vec2f offset) {
if(!visible)
return;
const mgl::vec2f draw_pos = position + offset;
offset = draw_pos;
mgl_scissor prev_scissor;
mgl_window_get_scissor(window.internal_window(), &prev_scissor);
const mgl::vec2f content_size = get_inner_size();
mgl_scissor new_scissor = {
mgl_vec2i{(int)offset.x, (int)offset.y},
mgl_vec2i{(int)content_size.x, (int)content_size.y}
};
mgl_window_set_scissor(window.internal_window(), &new_scissor);
Widget *selected_widget = selected_child_widget;
for(size_t i = 0; i < widgets.size(); ++i) {
auto &widget = widgets[i];
if(widget.get() != selected_widget)
widget->draw(window, offset);
}
if(selected_widget)
selected_widget->draw(window, offset);
mgl_window_set_scissor(window.internal_window(), &prev_scissor);
}
mgl::vec2f ScrollablePage::get_size() {
if(!visible)
return {0.0f, 0.0f};
return size;
}
void ScrollablePage::set_size(mgl::vec2f size) {
this->size = size;
}
void ScrollablePage::add_widget(std::unique_ptr<Widget> widget) {
widgets.push_back(std::move(widget));
}
}
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