using System.ComponentModel;
using FastReport.Data;
using FastReport.Utils;

namespace FastReport
{
    /// <summary>
    /// Specifies the default paper size used when creating a new report.
    /// </summary>
    public enum DefaultPaperSize
    {
        /// <summary>
        /// A4 paper (210 x 297 mm).
        /// </summary>
        A4,

        /// <summary>
        /// Letter paper (8.5 x 11 inches, 216 x 279 mm).
        /// </summary>
        Letter
    }

    /// <summary>
    /// This class contains settings that will be applied to the Report component.
    /// </summary>
    [TypeConverter(typeof(FastReport.TypeConverters.FRExpandableObjectConverter))]
    public partial class ReportSettings
    {
        private Language defaultLanguage;
        private DefaultPaperSize defaultPaperSize;
        private bool usePropValuesToDiscoverBO;
        private string imageLocationRoot;

        /// <include file='Resources/doc.xml' path='//CodeDoc/Topics/EnvironmentSettings/DatabaseLogin/*'/>
        public event DatabaseLoginEventHandler DatabaseLogin;

        /// <summary>
        /// Occurs after the database connection is established.
        /// </summary>
        public event AfterDatabaseLoginEventHandler AfterDatabaseLogin;

        /// <summary>
        /// Occurs when discovering the business object's structure.
        /// </summary>
        public event FilterPropertiesEventHandler FilterBusinessObjectProperties;

        /// <summary>
        /// Occurs when determining the kind of business object's property.
        /// </summary>
        public event GetPropertyKindEventHandler GetBusinessObjectPropertyKind;

        /// <summary>
        /// Occurs when discovering the structure of business object of ICustomTypeDescriptor type 
        /// with no instance specified.
        /// </summary>
        /// <remarks>
        /// The event handler must return an instance of that type.
        /// </remarks>
        public event GetTypeInstanceEventHandler GetBusinessObjectTypeInstance;

        /// <summary>
        /// Gets or sets the default script language.
        /// </summary>
        [DefaultValue(Language.CSharp)]
        public Language DefaultLanguage
        {
            get { return defaultLanguage; }
            set { defaultLanguage = value; }
        }

        /// <summary>
        /// Gets or sets the default paper size used when creating a new report.
        /// </summary>
        [DefaultValue(DefaultPaperSize.A4)]
        public DefaultPaperSize DefaultPaperSize
        {
            get { return defaultPaperSize; }
            set { defaultPaperSize = value; }
        }

        /// <summary>
        /// Gets or sets a value indicating that the business object engine will use property values 
        /// when possible to discover the BO structure.
        /// </summary>
        [DefaultValue(true)]
        public bool UsePropValuesToDiscoverBO
        {
            get { return usePropValuesToDiscoverBO; }
            set { usePropValuesToDiscoverBO = value; }
        }

        /// <summary>
        /// Gets or sets the default path for root of PictureObject.ImageLocation path.
        /// </summary>
        [DefaultValue("")]
        public string ImageLocationRoot
        {
            get { return imageLocationRoot; }
            set { imageLocationRoot = value; }
        }

        internal void OnAfterDatabaseLogin(DataConnectionBase sender, AfterDatabaseLoginEventArgs e)
        {
            if (AfterDatabaseLogin != null)
                AfterDatabaseLogin(sender, e);
        }

        internal void OnFilterBusinessObjectProperties(object sender, FilterPropertiesEventArgs e)
        {
            if (FilterBusinessObjectProperties != null)
                FilterBusinessObjectProperties(sender, e);
        }

        internal void OnGetBusinessObjectPropertyKind(object sender, GetPropertyKindEventArgs e)
        {
            if (GetBusinessObjectPropertyKind != null)
                GetBusinessObjectPropertyKind(sender, e);
        }

        internal void OnGetBusinessObjectTypeInstance(object sender, GetTypeInstanceEventArgs e)
        {
            if (GetBusinessObjectTypeInstance != null)
                GetBusinessObjectTypeInstance(sender, e);
        }

        /// <summary>
        /// Initializes a new instance of the <see cref="ReportSettings"/> class.
        /// </summary>
        public ReportSettings()
        {
            usePropValuesToDiscoverBO = true;
        }
    }
}