using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms; 
using ICSharpCode.WinFormsUI.Forms;
using ICSharpCode.WinFormsUI.NGraphics;

namespace ICSharpCode.WinFormsUI.Core
{
 internal delegate bool DelegateWindowState();
 public class ControlBoxManager
 {
 private BaseForm _owner;

 private RenderControlButton closeBtn;
 private RenderControlButton maxBtn;
 private RenderControlButton resBtn;
 private RenderControlButton minBtn;

 #region event handler

 private void CloseBtnClick(object sender, EventArgs e)
 {
 if (_owner.CloseBox)
 _owner.Close();
 }

 private void MaxBtnClick(object sender, EventArgs e)
 {
 _owner.WindowState = FormWindowState.Maximized;
 if (_owner.MaximumSize == _owner.ClientSize)
 FormResize();
 }

 private void ResBtnClick(object sender, EventArgs e)
 {
 _owner.WindowState = FormWindowState.Normal;
 if (_owner.MaximumSize == _owner.ClientSize)
 FormResize();
 }

 private void MinBtnClick(object sender, EventArgs e)
 {
 _owner.WindowState = FormWindowState.Minimized;
 }

 #endregion

 private void SetControlBoxColor()
 {
 
 closeBtn.ColorTable = _owner.XTheme.CloseBoxColor;
 closeBtn.BackImageNormal = _owner.XTheme.CloseBoxBackImageNormal;
 closeBtn.BackImageHover = _owner.XTheme.CloseBoxBackImageHover;
 closeBtn.BackImagePressed = _owner.XTheme.CloseBoxBackImagePressed;

 // max res box
 if (_owner.MaximizeBox)
 { 
 maxBtn.ColorTable = _owner.XTheme.MaxBoxColor;
 maxBtn.BackImageNormal = _owner.XTheme.MaxBoxBackImageNormal;
 maxBtn.BackImageHover = _owner.XTheme.MaxBoxBackImageHover;
 maxBtn.BackImagePressed = _owner.XTheme.MaxBoxBackImagePressed;

 resBtn.ColorTable = _owner.XTheme.MaxBoxColor; 
 resBtn.BackImageNormal = _owner.XTheme.ResBoxBackImageNormal;
 resBtn.BackImageHover = _owner.XTheme.ResBoxBackImageHover;
 resBtn.BackImagePressed = _owner.XTheme.ResBoxBackImagePressed;
 }

 // min box
 if (_owner.MinimizeBox)
 { 
 minBtn.ColorTable = _owner.XTheme.MinBoxColor;
 minBtn.BackImageNormal = _owner.XTheme.MinBoxBackImageNormal;
 minBtn.BackImageHover = _owner.XTheme.MinBoxBackImageHover;
 minBtn.BackImagePressed = _owner.XTheme.MinBoxBackImagePressed;
 }

 }

 private void ControlBoxInit()
 {
 // close box
 if (_owner.CloseBox)
 {
 closeBtn = new RenderControlButton(_owner);
 closeBtn.Visible = true;
 closeBtn.Bounds = _owner.CloseBoxRect;

 closeBtn.Click += new EventHandler(CloseBtnClick);
 closeBtn.ForePathGetter = new ButtonForePathGetter(
 GraphicsPathHelper.CreateCloseFlagPath);
 }

 // max res box
 if (_owner.MaximizeBox)
 {
 maxBtn = new RenderControlButton(_owner);
 resBtn = new RenderControlButton(_owner);

 if (_owner.WindowState == FormWindowState.Normal)
 {
 maxBtn.Visible = true;
 resBtn.Visible = false;
 }
 else
 {
 maxBtn.Visible = false;
 resBtn.Visible = true;
 }

 maxBtn.Bounds = _owner.MaxBoxRect;
 resBtn.Bounds = _owner.MaxBoxRect;

 maxBtn.Click += new EventHandler(MaxBtnClick);
 maxBtn.ForePathGetter = new ButtonForePathGetter(
 GraphicsPathHelper.CreateMaximizeFlagPath);

 resBtn.Click += new EventHandler(ResBtnClick);
 resBtn.ForePathGetter = new ButtonForePathGetter(
 GraphicsPathHelper.CreateRestoreFlagPath);
 }

 // min box
 if (_owner.MinimizeBox)
 {
 minBtn = new RenderControlButton(_owner);

 minBtn.Visible = true;
 minBtn.Bounds = _owner.MinBoxRect;

 minBtn.Click += new EventHandler(MinBtnClick);
 minBtn.ForePathGetter = new ButtonForePathGetter(
 GraphicsPathHelper.CreateMinimizeFlagPath);
 }

 SetControlBoxColor();
 }

 public ControlBoxManager(BaseForm owner)
 {
 _owner = owner;
 ControlBoxInit();
 }

 public void FormResize()
 {
 if (maxBtn != null)
 {
 if (_owner.WindowState == FormWindowState.Normal)
 {
 maxBtn.Visible = true;
 resBtn.Visible = false;
 resBtn.State = ButtonState.Normal;
 }
 else if (_owner.WindowState != FormWindowState.Minimized)
 {
 resBtn.Visible = true;
 maxBtn.Visible = false;
 maxBtn.State = ButtonState.Normal;
 }
 resBtn.Bounds = maxBtn.Bounds = _owner.MaxBoxRect;
 }
 if (minBtn != null)
 minBtn.Bounds = _owner.MinBoxRect;
 if (closeBtn != null)
 closeBtn.Bounds = _owner.CloseBoxRect;
 }

 public void FormResize(bool WindowState)
 {
 if (maxBtn != null)
 {
 if (WindowState)
 {
 resBtn.Visible = true;
 maxBtn.Visible = false;
 maxBtn.State = ButtonState.Normal;
 }
 else
 { 
 maxBtn.Visible = true;
 resBtn.Visible = false;
 resBtn.State = ButtonState.Normal;
 }
 resBtn.Bounds = maxBtn.Bounds = _owner.MaxBoxRect;
 }
 if (minBtn != null)
 minBtn.Bounds = _owner.MinBoxRect;
 if (closeBtn != null)
 closeBtn.Bounds = _owner.CloseBoxRect;
 }

 internal void FormResize(DelegateWindowState WindowState)
 {
 FormResize(WindowState.Invoke());
 }

 public void MouseOperation(Point location, MouseOperationType type)
 {
 if (closeBtn != null && closeBtn.Visible)
 closeBtn.MouseOperation(location, type);
 if (maxBtn != null && maxBtn.Visible)
 maxBtn.MouseOperation(location, type);
 if(resBtn!=null && resBtn.Visible)
 resBtn.MouseOperation(location, type);
 if(minBtn!=null)
 minBtn.MouseOperation(location, type);
 }

 public void DrawBoxes(System.Drawing.Graphics g) 
 {
 if (_owner.ControlBox) 
 {
 if (_owner.CloseBox && closeBtn != null)
 closeBtn.DrawButton(g);
 if (_owner.MinimizeBox && minBtn != null)
 minBtn.DrawButton(g);
 if (_owner.MaximizeBox)
 {
 if (maxBtn != null & maxBtn.Visible)
 maxBtn.DrawButton(g);
 if (resBtn != null && resBtn.Visible)
 resBtn.DrawButton(g);
 }
 }
 }

 public void ResetBoxColor()
 {
 SetControlBoxColor();
 }
 }
 
}