using Syncfusion.Windows.Forms.Tools;
using Syncfusion.Drawing;
using System.Drawing;
using System.Windows.Forms;

namespace GradientPanelDemo
{
    public partial class Form1 : Form
    {
        private GradientPanel gradientPanel1;

        public Form1()
        {
            InitializeComponent();
            CreateGradientPanel();
        }

        private void CreateGradientPanel()
        {
            // Create GradientPanel
            gradientPanel1 = new GradientPanel();
            gradientPanel1.Size = new Size(400, 300);
            gradientPanel1.Location = new Point(20, 20);
            
            // Set gradient background (blue to red, forward diagonal)
            gradientPanel1.BackgroundColor = new BrushInfo(
                GradientStyle.ForwardDiagonal, 
                Color.Blue, 
                Color.Red
            );
            
            // Add border
            gradientPanel1.BorderStyle = BorderStyle.FixedSingle;
            gradientPanel1.BorderColor = Color.White;
            
            // Add to form
            this.Controls.Add(gradientPanel1);
            
            // Add child controls to the panel
            Label label = new Label();
            label.Text = "Gradient Panel Content";
            label.ForeColor = Color.White;
            label.BackColor = Color.Transparent;
            label.Location = new Point(20, 20);
            label.AutoSize = true;
            gradientPanel1.Controls.Add(label);
        }
    }
}

// Create panel with solid color background
GradientPanel solidPanel = new GradientPanel();
solidPanel.BackgroundColor = new BrushInfo(Color.MediumBlue);
solidPanel.BorderStyle = BorderStyle.FixedSingle;
solidPanel.BorderColor = Color.Red;

// Create panel with pattern background
GradientPanel patternPanel = new GradientPanel();
patternPanel.BackgroundColor = new BrushInfo(
    PatternStyle.LargeCheckerBoard,
    Color.Turquoise,  // Foreground color
    Color.MediumBlue  // Background color
);
patternPanel.BorderStyle = BorderStyle.FixedSingle;

// Create header panel with gradient
GradientPanel headerPanel = new GradientPanel();
headerPanel.Dock = DockStyle.Top;
headerPanel.Height = 80;
headerPanel.BackgroundColor = new BrushInfo(
    GradientStyle.Horizontal,
    Color.FromArgb(0, 120, 215),
    Color.FromArgb(0, 80, 150)
);

// Add title label
Label titleLabel = new Label();
titleLabel.Text = "Application Header";
titleLabel.Font = new Font("Segoe UI", 18, FontStyle.Bold);
titleLabel.ForeColor = Color.White;
titleLabel.BackColor = Color.Transparent;
titleLabel.AutoSize = true;
titleLabel.Location = new Point(20, 25);
headerPanel.Controls.Add(titleLabel);

this.Controls.Add(headerPanel);

// Create scrollable content container
GradientPanel contentPanel = new GradientPanel();
contentPanel.Dock = DockStyle.Fill;
contentPanel.BackgroundColor = new BrushInfo(
    GradientStyle.Vertical,
    Color.WhiteSmoke,
    Color.LightGray
);
contentPanel.AutoScroll = true;
contentPanel.AutoScrollMargin = new Size(5, 5);

// Add multiple child controls that exceed panel size
for (int i = 0; i < 20; i++)
{
    Button btn = new Button();
    btn.Text = $"Button {i + 1}";
    btn.Location = new Point(10, 10 + (i * 40));
    btn.Size = new Size(200, 30);
    contentPanel.Controls.Add(btn);
}

this.Controls.Add(contentPanel);

// Create sidebar with pattern background
GradientPanel sidebarPanel = new GradientPanel();
sidebarPanel.Dock = DockStyle.Left;
sidebarPanel.Width = 200;
sidebarPanel.BackgroundColor = new BrushInfo(
    PatternStyle.DarkDownwardDiagonal,
    Color.Gray,
    Color.DarkGray
);
sidebarPanel.BorderStyle = BorderStyle.Fixed3D;
sidebarPanel.Border3DStyle = Border3DStyle.Etched;

this.Controls.Add(sidebarPanel);

private void CreateCardPanels()
{
    FlowLayoutPanel container = new FlowLayoutPanel();
    container.Dock = DockStyle.Fill;
    container.Padding = new Padding(10);
    
    // Create multiple card-style panels
    for (int i = 0; i < 6; i++)
    {
        GradientPanel card = new GradientPanel();
        card.Size = new Size(180, 150);
        card.Margin = new Padding(5);
        card.BackgroundColor = new BrushInfo(
            GradientStyle.PathRectangle,
            Color.AliceBlue,
            Color.SteelBlue
        );
        card.BorderStyle = BorderStyle.FixedSingle;
        card.BorderColor = Color.SteelBlue;
        
        // Add card content
        Label cardTitle = new Label();
        cardTitle.Text = $"Card {i + 1}";
        cardTitle.Font = new Font("Segoe UI", 12, FontStyle.Bold);
        cardTitle.BackColor = Color.Transparent;
        cardTitle.AutoSize = true;
        cardTitle.Location = new Point(10, 10);
        card.Controls.Add(cardTitle);
        
        container.Controls.Add(card);
    }
    
    this.Controls.Add(container);
}