From 7ccb819f867493f8ec202ea3b39c94c198c64584 Mon Sep 17 00:00:00 2001
From: JustSomePwner <crotchyalt@gmail.com>
Date: Thu, 30 Aug 2018 14:01:54 +0200
Subject: first

---
 loader/ui_form.h | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 loader/ui_form.h

(limited to 'loader/ui_form.h')

diff --git a/loader/ui_form.h b/loader/ui_form.h
new file mode 100644
index 0000000..2fdf6e7
--- /dev/null
+++ b/loader/ui_form.h
@@ -0,0 +1,130 @@
+#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 ) :
+			base_item( x, y, w, h, name ), m_dynamic( !h ), m_max_height( max_h ) { };
+
+		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( );
+		}
+
+		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 {
+			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_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 );
+
+			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 );
+
+			m_was_hovered = is_hovered( );
+		}
+
+	protected:
+		bool m_dynamic{ };
+		bool m_was_hovered{ };
+		int m_max_height{ };
+		int m_scroll_offset{ };
+	};
+}
\ No newline at end of file
-- 
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