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#pragma once
#include "ui_base_item.h"
namespace ui
{
class c_form : public base_item {
public:
c_form( int x, int y, int w, int h, const char* name, int max_h = 0, bool collapse = false ) :
base_item( x, y, w, h, name ), m_dynamic( !h ), m_max_height( max_h ), m_collapse( collapse ) { };
virtual int x( ) const override {
return m_x + 10;
}
virtual int y( ) const override {
return m_y + m_scroll_offset + 9;
}
virtual bool is_form( ) const override {
return true;
}
virtual bool is_hovered( ) override {
int mouse_x, mouse_y;
ui_get_cursor_pos( mouse_x, mouse_y );
int x = get_relative_x( );
int y = get_relative_y( );
return mouse_x > x && mouse_x < x + w( )
&& mouse_y > y && mouse_y < y + h( );
}
bool is_collapse_hovered( ) {
if( !m_collapse ) return false;
int mouse_x, mouse_y;
ui_get_cursor_pos( mouse_x, mouse_y );
int x = get_relative_x( ) + m_width - 8;
int y = get_relative_y( ) + 2;
return mouse_x >= x && mouse_x <= x + 5
&& mouse_y >= y && mouse_y <= y + 7;
}
bool is_collapsed( ) {
return ( m_collapse && !m_open );
}
inline void update_size( ) {
if ( !m_dynamic ) return;
int total_height{ ITEM_OFFSET * 2 };
for ( auto& it : m_items ) {
if ( it->get_visible( ) ) {
auto item_height = it->get_total_height( ) + ITEM_OFFSET;
if( m_max_height && total_height + item_height > m_max_height ) {
total_height = m_max_height;
break;
}
total_height += it->get_total_height( ) + ITEM_OFFSET;
}
}
m_height = total_height;
}
virtual int get_total_height( ) const override {
if( !m_open && m_collapse ) return 18;
return m_height + 5;
}
int get_total_item_height( ) {
int total_height{ ITEM_OFFSET * 2 };
for( auto& it : m_items ) {
if( it->get_visible( ) ) {
auto item_height = it->get_total_height( ) + ITEM_OFFSET;
total_height += it->get_total_height( ) + ITEM_OFFSET;
}
}
return total_height;
}
void input( ) {
if( m_collapse ) {
bool hovered = is_collapse_hovered( );
bool clicked = g_input.is_key_pressed( KEYS_MOUSE1 );
if( hovered && clicked ) {
if( !m_was_pressed ) {
m_open ^= 1;
}
m_was_pressed = true;
}
else {
m_was_pressed = false;
}
}
if( m_max_height && get_total_item_height( ) > m_max_height ) {
if( !m_disabled && is_hovered( ) ) {
auto scroll_state = g_input.get_scroll_state( );
if( !!scroll_state && m_was_hovered ) {
scroll_state > 0 ? m_scroll_offset += 13 : m_scroll_offset -= 13;
}
m_scroll_offset = std::clamp( m_scroll_offset, -( get_total_item_height( ) - m_height + 3 ), 0 );
}
}
else {
m_scroll_offset = 0;
}
}
virtual void render( ) override {
update_size( );
input( );
int x = get_relative_x( );
int y = get_relative_y( );
int text_w, text_h;
ui_get_text_size( text_w, text_h, m_text );
if( m_collapse ) {
if( !m_open && m_collapse ) {
ui_draw_outlined_rect( x, y, m_width, 14, ui_get_accent_col( ) );
ui_draw_line( x + 3, y, x + text_w + 1, y, ui_get_bg_col( ) );
ui_draw_string( x + 3, y - 7, false, ui_get_text_col( ), m_text );
int button_x = x + m_width - 6;
int button_y = y + 2;
ui_draw_string( button_x, button_y, true,
is_collapse_hovered( ) ? ui_get_accent_col( ) : ui_get_text_col( ), "+" );
return;
}
}
for( int i{ }; i < 8; ++i ) {
clr_t col = ui_get_bg_col( ) * ( 0.72f + i * 0.04f );
ui_draw_rect( x, y + i, m_width, m_height - i * 2, col );
}
ui_draw_outlined_rect( x, y, m_width, m_height, ui_get_accent_col( ) );
if( m_max_height && get_total_item_height( ) > m_height ) {
const size_t height = get_total_height( ) - 20;
const float delta = ( float )( get_total_item_height( ) - height + 1 );
const float slider_step = ( ( float )( height ) / delta );
const float slider_height = slider_step * 13.f;
size_t slider_pos = static_cast< size_t >( slider_step * m_scroll_offset );
ui_draw_rect( x + m_width - 7, y + 8, 4, height, ui_get_disabled_col( ) );
ui_draw_rect( x + m_width - 7, y - slider_pos + 8, 4, ( int )slider_height + 1, ui_get_accent_col( ) );
}
if( is_hovered( ) != m_was_hovered ) {
bool backup = m_disabled;
if( !backup ) {
set_disabled( !is_hovered( ) );
}
m_disabled = backup;
}
ui_draw_line( x + 3, y, x + text_w + 1, y, ui_get_bg_col( ) );
ui_draw_string( x + 3, y - 7, false, ui_get_text_col( ), m_text );
if( m_collapse ) {
int button_x = x + m_width - 6;
int button_y = y + 2;
ui_draw_string( button_x, button_y, true,
is_collapse_hovered( ) ? ui_get_accent_col( ) : ui_get_text_col( ), "-" );
}
m_was_hovered = is_hovered( );
}
protected:
bool m_dynamic{ };
bool m_was_hovered{ };
int m_max_height{ };
int m_scroll_offset{ };
bool m_was_pressed{ };
bool m_collapse{ };
bool m_open{ true };
};
}
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