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#pragma once
#include <memory>
#include <vector>
#include <functional>
#include "ui_draw.h"
namespace ui
{
//the offset between each item
constexpr int ITEM_OFFSET = 5;
class base_item : public std::enable_shared_from_this< base_item > {
public:
base_item( ) { }
base_item( int x, int y, int w, int h, const char* name = nullptr ) :
m_x( x ), m_y( y ), m_width( w ), m_height( h ) {
if( name ) {
strcpy( m_text, name );
}
}
virtual void render( ) { };
virtual bool is_hovered( ) { return false; }
virtual bool is_form( ) const { return false; }
virtual void reset( ) {
m_y_offset = 0;
}
virtual int get_total_height( ) const {
return m_height;
}
void set_y_offset( int offset ) {
m_y_offset = offset;
}
int get_y_offset( ) const {
return m_y_offset;
}
auto add_item( std::shared_ptr< base_item > item ) {
item.get( )->m_parent = shared_from_this( );
m_items.emplace( m_items.begin( ), item );
return item;
}
auto& get_items( ) { return m_items; }
auto get_parent( ) { return m_parent; }
virtual int x( ) const { return m_x; }
virtual int y( ) const { return m_y; }
virtual int w( ) const { return m_width; }
virtual int h( ) const { return m_height; }
void set_x( int x ) { m_x = x; }
void set_y( int y ) { m_y = y; }
void set_width( int w ) { m_width = w; }
void set_height( int h ) { m_height = h; }
bool get_visible( ) const {
if( m_cond && !m_cond( ) ) {
return false;
}
return m_visible;
}
void set_cond( std::function< bool( ) > func ) {
m_cond = func;
}
void set_visible( bool vis ) { m_visible = vis; }
void set_text( const char* text ) {
strcpy( m_text, text );
}
auto get_text( ) const {
return m_text;
}
std::shared_ptr< base_item > find_item( const char* name ) {
if( !m_items.empty( ) ) {
for( auto& it : m_items ) {
if( it->get_text( ) && !strcmp( it->get_text( ), name ) ) {
return it;
}
auto it_find = it->find_item( name );
if( it_find != it ) return it_find;
}
}
return shared_from_this( );
}
auto get_top_parent( ) {
for( auto parent = m_parent; ;
parent = parent->get_parent( ) ) {
if( !parent->get_parent( ) ) {
return parent;
}
}
return shared_from_this( );
}
int get_relative_x( ) {
int x = m_x;
for( auto parent = get_parent( ); !!parent;
parent = parent->get_parent( ) ) {
x += parent->x( );
}
return x;
}
int get_relative_y( ) {
int y = m_y + get_y_offset( );
for( auto parent = get_parent( ); !!parent;
parent = parent->get_parent( ) ) {
y += parent->y( ) + parent->get_y_offset( );
}
return y;
}
void set_disabled( bool disabled ) {
m_disabled = disabled;
for( auto& it : m_items ) {
it->set_disabled( disabled );
}
}
void set_disabled_callbacks( bool disabled ) {
auto top = get_top_parent( );
top->set_disabled( disabled );
m_disabled = false;
}
protected:
int m_x{ };
int m_y{ };
int m_width{ };
int m_height{ };
//current y position for rendering
int m_y_offset{ };
bool m_visible = true;
bool m_disabled = false;
char m_text[ 256 ]{ };
std::shared_ptr< base_item > m_parent;
std::vector< std::shared_ptr< base_item > > m_items;
std::function< bool( ) > m_cond;
};
}
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