chanelpanel.cs

破解的飞信源代码

namespace Imps.Client.Pc
{
    using System;
    using System.Windows.Forms;

    public class ChanelPanel : ElementPanel
    {
        private int _count_to_display;
        private int _head;
        private ElementControls _items = new ElementControls();
        public ElementButton _scrolldown;
        public ElementButton _scrollup;

        public ChanelPanel()
        {
            base.HandleMouse = false;
        }

        private void ChangeItemsVisible()
        {
            for (int i = 0; i < this._items.Count; i++)
            {
                if ((i >= this._head) && (i < (this._head + this._count_to_display)))
                {
                    this._items[i].Visible = this.Visible;
                }
                else
                {
                    this._items[i].Visible = false;
                }
            }
        }

        private void ChangeItmesLocation()
        {
            for (int i = 0; i < this._items.Count; i++)
            {
                if (i == this._head)
                {
                    this._items[i]._location.X = base.InnerX;
                    this._items[i]._location.Y = base.InnerY + 1;
                }
                else if ((i > this._head) && (i < (this._head + this._count_to_display)))
                {
                    this._items[i]._location.X = base.InnerX;
                    this._items[i]._location.Y = (this._items[i - 1]._location.Y + this._items[i - 1]._size.Height) + 1;
                }
            }
        }

        private void ChangeScrollState()
        {
            if ((this._head + this._count_to_display) < this._items.Count)
            {
                this._scrolldown.State = ElementButton.ButtonState.STATE_NORMAL;
            }
            else
            {
                this._scrolldown.State = ElementButton.ButtonState.STATE_DISABLE;
            }
            if (this._head > 0)
            {
                this._scrollup.State = ElementButton.ButtonState.STATE_NORMAL;
            }
            else
            {
                this._scrollup.State = ElementButton.ButtonState.STATE_DISABLE;
            }
        }

        public override void OnPaint(PaintEventArgs e)
        {
            if (this.Visible)
            {
                base.OnPaint(e);
                foreach (Element element in this._items)
                {
                    element.OnPaint(e);
                }
                this._scrollup.OnPaint(e);
                this._scrolldown.OnPaint(e);
            }
        }

        public override void OnSizeChanged(int w, int h)
        {
            base.OnSizeChanged(w, h);
            if ((this._items.Count != 0) && ((this._scrollup.Style._normal_image != null) && (this._scrolldown.Style._normal_image != null)))
            {
                if (this._items[0]._size.Height == 0)
                {
                    this._items[0]._size.Height = 1;
                }
                this._count_to_display = (base.InnerHeight / this._items[0]._size.Height) - 1;
                if (this._count_to_display < 0)
                {
                    this._count_to_display = 0;
                }
                if ((this._head + this._count_to_display) >= this._items.Count)
                {
                    this._head = this._items.Count - this._count_to_display;
                }
                if (this._head < 0)
                {
                    this._head = 0;
                }
                this.ChangeItmesLocation();
                this.ChangeItemsVisible();
                this._scrolldown._location.X = this._location.X + ((this._size.Width - this._scrolldown.Style._normal_image.Width) / 2);
                this._scrolldown._location.Y = ((base.InnerY + base.InnerHeight) - this._scrolldown.Style._normal_image.Height) - 5;
                this._scrolldown._size.Width = this._scrolldown.Style._normal_image.Width;
                this._scrolldown._size.Height = this._scrolldown.Style._normal_image.Height;
                this._scrollup._location.X = this._scrolldown._location.X;
                this._scrollup._location.Y = (this._scrolldown._location.Y - this._scrollup.Style._normal_image.Height) - 5;
                this._scrollup._size.Width = this._scrollup.Style._normal_image.Width;
                this._scrollup._size.Height = this._scrollup.Style._normal_image.Height;
                if (this._count_to_display < this._items.Count)
                {
                    this._scrollup.Visible = true;
                    this._scrolldown.Visible = true;
                }
                else
                {
                    this._scrollup.Visible = false;
                    this._scrolldown.Visible = false;
                }
                this.ChangeScrollState();
            }
        }

        public void ScrollDown(object sender, EventArgs e)
        {
            if ((this._head + this._count_to_display) < this._items.Count)
            {
                this._head++;
            }
            this.ChangeItmesLocation();
            this.ChangeItemsVisible();
            this.ChangeScrollState();
            base.RaiseInvalidate(false);
        }

        public void ScrollUp(object sender, EventArgs e)
        {
            if (this._head > 0)
            {
                this._head--;
            }
            this.ChangeItmesLocation();
            this.ChangeItemsVisible();
            this.ChangeScrollState();
            base.RaiseInvalidate(false);
        }

        public ElementControls Items
        {
            get
            {
                return this._items;
            }
        }

        public bool Visible
        {
            get
            {
                return base.Visible;
            }
            set
            {
                base.Visible = value;
                foreach (Element element in this._items)
                {
                    element.Visible = value;
                }
            }
        }
    }
}