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Scrollable menuview

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This commit is contained in:
furrtek 2016-07-30 05:27:28 +02:00
parent b4afdad7e6
commit 94b27ec45c
6 changed files with 139 additions and 62 deletions
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70
firmware/application/ui_menu.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2016 Furrtek
*
* This file is part of PortaPack.
*
@ -20,10 +21,11 @@
*/
#include "ui_menu.hpp"
#include "time.hpp"
namespace ui {
/* MenuViewItem **********************************************************/
/* MenuItemView **********************************************************/
void MenuItemView::select() {
if( item.on_select ) {
@ -72,27 +74,67 @@ void MenuItemView::paint(Painter& painter) {
/* MenuView **************************************************************/
MenuView::MenuView() {
set_focusable(true);
add_child(&arrow_more);
signal_token_tick_second = time::signal_tick_second += [this]() {
this->on_tick_second();
};
arrow_more.set_parent_rect( { 216, 320 - 16 - 24, 16, 16 } );
arrow_more.set_focusable(false);
}
MenuView::~MenuView() {
/* TODO: Double-check this */
for(auto child : children_) {
for (auto child : children_) {
delete child;
}
}
void MenuView::on_tick_second() {
if (more_ && blink_)
arrow_more.set_foreground(Color::white());
else
arrow_more.set_foreground(Color::black());
blink_ = !blink_;
arrow_more.set_dirty();
}
void MenuView::add_item(const MenuItem item) {
add_child(new MenuItemView { item });
}
void MenuView::set_parent_rect(const Rect new_parent_rect) {
View::set_parent_rect(new_parent_rect);
update_items();
}
void MenuView::update_items() {
constexpr size_t item_height = 24;
size_t i = 0;
for(auto child : children_) {
child->set_parent_rect({
{ 0, static_cast<ui::Coord>(i * item_height) },
{ size().w, item_height }
});
Coord y_pos;
if (MENU_MAX + offset_ < (children_.size() - 1))
more_ = true;
else
more_ = false;
for (auto child : children_) {
if (i) { // Skip arrow widget
y_pos = (i - 1 - offset_) * item_height;
child->set_parent_rect({
{ 0, y_pos },
{ size().w, item_height }
});
if ((y_pos < 0) || (y_pos >= (320 - 16 - 24 - 16)))
child->hidden(true);
else
child->hidden(false);
}
i++;
}
}
@ -101,7 +143,7 @@ MenuItemView* MenuView::item_view(size_t index) const {
/* TODO: Terrible cast! Take it as a sign I must be doing something
* shamefully wrong here, right?
*/
return static_cast<MenuItemView*>(children_[index]);
return static_cast<MenuItemView*>(children_[index + 1]); // Skip arrow widget
}
size_t MenuView::highlighted() const {
@ -109,9 +151,19 @@ size_t MenuView::highlighted() const {
}
bool MenuView::set_highlighted(const size_t new_value) {
if( new_value >= children_.size() ) {
if( new_value >= (children_.size() - 1) ) { // Skip arrow widget
return false;
}
if ((new_value - offset_ + 1) >= MENU_MAX) {
// Shift MenuView up
offset_ = new_value - MENU_MAX + 1;
update_items();
} else if (new_value < offset_) {
// Shift MenuView down
offset_ = new_value;
update_items();
}
item_view(highlighted())->unhighlight();
highlighted_ = new_value;