I coded a MSN Messenger-like skinnable popup, with a close button which looks almost like Microsoft's one (with the associated skin).
The TaskbarNotifier class inherits from System.Windows.Forms.Form and adds a few methods to it.
Features
The MSN messenger like popup supports:
* A custom transparent bitmap background
* A skinnable 3-State close button
* A clickable title text
* A clickable content text
* A selection rectangle
* Custom fonts and colors for the different states of the text (normal/hover)
* Animation speed parameters
Compatibility
This class is stand alone and doesn't need any particular libraries except .NET default ones. It runs in managed code and hence should be portable.
How to use the class
* First of all, copy TaskbarNotifier.cs in your project directory.
* Add on the top of your source code the directive:
using CustomUIControls;
* Add a member variable in your class:
TaskbarNotifier taskbarNotifier;
* In your constructor add the following lines:
taskbarNotifier=new TaskbarNotifier();
taskbarNotifier.SetBackgroundBitmap("skin.bmp",
Color.FromArgb(255,0,255));
taskbarNotifier.SetCloseBitmap("close.bmp",
Color.FromArgb(255,0,255),new Point(127,8));
taskbarNotifier.TitleRectangle=new Rectangle(40,9,70,25);
taskbarNotifier.ContentRectangle=new Rectangle(8,41,133,68);
taskbarNotifier.TitleClick+=new EventHandler(TitleClick);
taskbarNotifier.ContentClick+=new EventHandler(ContentClick);
taskbarNotifier.CloseClick+=new EventHandler(CloseClick);
Details:
taskbarNotifier.SetBackgroundBitmap("skin.bmp",
Color.FromArgb(255,0,255));
taskbarNotifier.SetCloseBitmap("close.bmp",
Color.FromArgb(255,0,255),new Point(127,8));
The first line sets the background bitmap skin and transparency color (must be present), and the second line sets the 3-State close button with its transparency color and its location on the window (this line is optional if you don't want a close button).
taskbarNotifier.TitleRectangle=new Rectangle(40,9,70,25);
taskbarNotifier.ContentRectangle=new Rectangle(8,41,133,68);
These two lines allow us to define the rectangles in which will be displayed, the title and content texts.
taskbarNotifier.TitleClick+=new EventHandler(OnTitleClick);
taskbarNotifier.ContentClick+=new EventHandler(OnContentClick);
taskbarNotifier.CloseClick+=new EventHandler(OnCloseClick);
These 3 lines allow us to intercept events on the popup such as title/content or close button have been clicked
* Then we are done, we just need to call:
taskbarNotifier.Show("TitleText","ContentText",500,3000,500);
This will show the popup animation with the showing/visible/hiding animations time set as 500ms/3000ms/500ms.
You can play with a few properties:
* Title, content fonts and colors
* Ability to click or not on the title/content/close button
* You can disable the focus rect
* ... (see below for more details)
Class documentation
Methods
void Show(string strTitle, string strContent, int nTimeToShow,
int nTimeToStay, int nTimeToHide)
Displays the popup for a certain amount of time.
Parameters
* strTitle: The string which will be shown as the title of the popup
* strContent: The string which will be shown as the content of the popup
* nTimeToShow: Duration of the showing animation (in milliseconds)
* nTimeToStay: Duration of the visible state before collapsing (in milliseconds)
* nTimeToHide: Duration of the hiding animation (in milliseconds)
void Hide()
Forces the popup to hide.
void SetBackgroundBitmap(string strFilename, Color transparencyColor)
Sets the background bitmap and its transparency color.
Parameters
* strFilename: Path of the background bitmap on the disk
* transparencyColor: Color of the bitmap which won't be visible
void SetBackgroundBitmap(Image image, Color transparencyColor)
Sets the background bitmap and its transparency color.
Parameters
# image: Background bitmap
# transparencyColor: Color of the bitmap which won't be visible
void SetCloseBitmap(string strFilename,
Color transparencyColor, Point position)
Sets the 3-State close button bitmap, its transparency color and its coordinates.
Parameters
* strFilename: Path of the 3-state close button bitmap on the disk (width must be a multiple of 3)
* transparencyColor: Color of the bitmap which won't be visible
* position: Location of the close button on the popup
void SetCloseBitmap(Image image, Color transparencyColor, Point position)
Sets the 3-State close button bitmap, its transparency color and its coordinates.
Parameters
* image: Image/Bitmap object which represents the 3-state close button bitmap (width must be a multiple of 3)
* transparencyColor: Color of the bitmap which won't be visible
* position: Location of the close button on the popup
Properties
string TitleText (get/set)
string ContentText (get/set)
TaskbarStates TaskbarState (get)
Color NormalTitleColor (get/set)
Color HoverTitleColor (get/set)
Color NormalContentColor (get/set)
Color HoverContentColor (get/set)
Font NormalTitleFont (get/set)
Font HoverTitleFont (get/set)
Font NormalContentFont (get/set)
Font HoverContentFont (get/set)
Rectangle TitleRectangle (get/set) //must be defined before calling show())
Rectangle ContentRectangle (get/set) //must be defined before calling show())
bool TitleClickable (get/set) (default = false);
bool ContentClickable (get/set) (default = true);
bool CloseClickable (get/set) (default = true);
bool EnableSelectionRectangle (get/set) (default = true);
Events
event EventHandler CloseClick
event EventHandler TitleClick
event EventHandler ContentClick
Technical issues
The popup is skinned using a region generated dynamically from a bitmap and a transparency color:
protected Region BitmapToRegion(Bitmap bitmap, Color transparencyColor)
{
if (bitmap == null)
throw new ArgumentNullException("Bitmap", "Bitmap cannot be null!");
int height = bitmap.Height;
int width = bitmap.Width;
GraphicsPath path = new GraphicsPath();
for (int j=0; j
if (bitmap.GetPixel(i, j) == transparencyColor)
continue;
int x0 = i;
while ((i < width) &&
(bitmap.GetPixel(i, j) != transparencyColor))
i++;
path.AddRectangle(new Rectangle(x0, j, i-x0, 1));
}
Region region = new Region(path);
path.Dispose();
return region;
}
The refresh() of the popup is done using the double buffering technique to avoid flickering:
protected override void OnPaintBackground(PaintEventArgs pea)
{
Graphics grfx = pea.Graphics;
grfx.PageUnit = GraphicsUnit.Pixel;
Graphics offScreenGraphics;
Bitmap offscreenBitmap;
offscreenBitmap = new Bitmap(BackgroundBitmap.Width,
BackgroundBitmap.Height);
offScreenGraphics = Graphics.FromImage(offscreenBitmap);
if (BackgroundBitmap != null)
{
offScreenGraphics.DrawImage(BackgroundBitmap,
0, 0, BackgroundBitmap.Width, BackgroundBitmap.Height);
}
DrawCloseButton(offScreenGraphics);
DrawText(offScreenGraphics);
grfx.DrawImage(offscreenBitmap, 0, 0);
}
Bugs/Limitations
Since I wanted to keep only managed code, I used the Screen.GetWorkingArea(WorkAreaRectangle) function instead of using unmanaged code to get the taskbar position. As a result, I made the popup always appear at the bottom of WorkAreaRectangle whichever position the taskbar has.
I didn't find any C# managed equivalent to the Win32 function ShowWindow(SW_SHOWNOACTIVATE) to make the popup, not steal the focus of the active window.
Code for TaskbarNotification.cs
// C# TaskbarNotifier Class v1.0
// by John O'Byrne - 02 december 2002
// 01 april 2003 : Small fix in the OnMouseUp handler
// 11 january 2003 : Patrick Vanden Driessche
// Small Enhancements/Bugfix
// Small bugfix: When Content text measures larger than the corresponding ContentRectangle
// the focus rectangle was not correctly drawn. This has been solved.
// Added KeepVisibleOnMouseOver
// Added ReShowOnMouseOver
// Added If the Title or Content are too long to fit in the corresponding Rectangles,
// the text is truncateed and the ellipses are appended (StringTrimming).
using System;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace CustomUIControls
{
///
/// TaskbarNotifier allows to display MSN style/Skinned instant messaging popups
///
public class TaskbarNotifier : System.Windows.Forms.Form
{
#region TaskbarNotifier Protected Members
protected Bitmap BackgroundBitmap = null;
protected Bitmap CloseBitmap = null;
protected Point CloseBitmapLocation;
protected Size CloseBitmapSize;
protected Rectangle RealTitleRectangle;
protected Rectangle RealContentRectangle;
protected Rectangle WorkAreaRectangle;
protected Timer timer = new Timer();
protected TaskbarStates taskbarState = TaskbarStates.hidden;
protected string titleText;
protected string contentText;
protected Color normalTitleColor = Color.FromArgb(255,0,0);
protected Color hoverTitleColor = Color.FromArgb(255,0,0);
protected Color normalContentColor = Color.FromArgb(0,0,0);
protected Color hoverContentColor = Color.FromArgb(0,0,0x66);
protected Font normalTitleFont = new Font("Arial",12,FontStyle.Regular,GraphicsUnit.Pixel);
protected Font hoverTitleFont = new Font("Arial",12,FontStyle.Bold,GraphicsUnit.Pixel);
protected Font normalContentFont = new Font("Arial",11,FontStyle.Regular,GraphicsUnit.Pixel);
protected Font hoverContentFont = new Font("Arial",11,FontStyle.Regular,GraphicsUnit.Pixel);
protected int nShowEvents;
protected int nHideEvents;
protected int nVisibleEvents;
protected int nIncrementShow;
protected int nIncrementHide;
protected bool bIsMouseOverPopup = false;
protected bool bIsMouseOverClose = false;
protected bool bIsMouseOverContent = false;
protected bool bIsMouseOverTitle = false;
protected bool bIsMouseDown = false;
protected bool bKeepVisibleOnMouseOver = true; // Added Rev 002
protected bool bReShowOnMouseOver = false; // Added Rev 002
#endregion
#region TaskbarNotifier Public Members
public Rectangle TitleRectangle;
public Rectangle ContentRectangle;
public bool TitleClickable = false;
public bool ContentClickable = true;
public bool CloseClickable = true;
public bool EnableSelectionRectangle = true;
public event EventHandler CloseClick = null;
public event EventHandler TitleClick = null;
public event EventHandler ContentClick = null;
#endregion
#region TaskbarNotifier Enums
///
/// List of the different popup animation status
///
public enum TaskbarStates
{
hidden = 0,
appearing = 1,
visible = 2,
disappearing = 3
}
#endregion
#region TaskbarNotifier Constructor
///
/// The Constructor for TaskbarNotifier
///
public TaskbarNotifier()
{
// Window Style
FormBorderStyle = FormBorderStyle.None;
WindowState = FormWindowState.Minimized;
base.Show();
base.Hide();
WindowState = FormWindowState.Normal;
ShowInTaskbar = false;
TopMost = true;
MaximizeBox = false;
MinimizeBox = false;
ControlBox = false;
timer.Enabled = true;
timer.Tick += new EventHandler(OnTimer);
}
#endregion
#region TaskbarNotifier Properties
///
/// Get the current TaskbarState (hidden, showing, visible, hiding)
///
public TaskbarStates TaskbarState
{
get
{
return taskbarState;
}
}
///
/// Get/Set the popup Title Text
///
public string TitleText
{
get
{
return titleText;
}
set
{
titleText=value;
Refresh();
}
}
///
/// Get/Set the popup Content Text
///
public string ContentText
{
get
{
return contentText;
}
set
{
contentText=value;
Refresh();
}
}
///
/// Get/Set the Normal Title Color
///
public Color NormalTitleColor
{
get
{
return normalTitleColor;
}
set
{
normalTitleColor = value;
Refresh();
}
}
///
/// Get/Set the Hover Title Color
///
public Color HoverTitleColor
{
get
{
return hoverTitleColor;
}
set
{
hoverTitleColor = value;
Refresh();
}
}
///
/// Get/Set the Normal Content Color
///
public Color NormalContentColor
{
get
{
return normalContentColor;
}
set
{
normalContentColor = value;
Refresh();
}
}
///
/// Get/Set the Hover Content Color
///
public Color HoverContentColor
{
get
{
return hoverContentColor;
}
set
{
hoverContentColor = value;
Refresh();
}
}
///
/// Get/Set the Normal Title Font
///
public Font NormalTitleFont
{
get
{
return normalTitleFont;
}
set
{
normalTitleFont = value;
Refresh();
}
}
///
/// Get/Set the Hover Title Font
///
public Font HoverTitleFont
{
get
{
return hoverTitleFont;
}
set
{
hoverTitleFont = value;
Refresh();
}
}
///
/// Get/Set the Normal Content Font
///
public Font NormalContentFont
{
get
{
return normalContentFont;
}
set
{
normalContentFont = value;
Refresh();
}
}
///
/// Get/Set the Hover Content Font
///
public Font HoverContentFont
{
get
{
return hoverContentFont;
}
set
{
hoverContentFont = value;
Refresh();
}
}
///
/// Indicates if the popup should remain visible when the mouse pointer is over it.
/// Added Rev 002
///
public bool KeepVisibleOnMousOver
{
get
{
return bKeepVisibleOnMouseOver;
}
set
{
bKeepVisibleOnMouseOver=value;
}
}
///
/// Indicates if the popup should appear again when mouse moves over it while it's disappearing.
/// Added Rev 002
///
public bool ReShowOnMouseOver
{
get
{
return bReShowOnMouseOver;
}
set
{
bReShowOnMouseOver=value;
}
}
#endregion
#region TaskbarNotifier Public Methods
[DllImport("user32.dll")]
private static extern Boolean ShowWindow(IntPtr hWnd,Int32 nCmdShow);
///
/// Displays the popup for a certain amount of time
///
public void Show(string strTitle, string strContent, int nTimeToShow, int nTimeToStay, int nTimeToHide)
{
WorkAreaRectangle = Screen.GetWorkingArea(WorkAreaRectangle);
titleText = strTitle;
contentText = strContent;
nVisibleEvents = nTimeToStay;
CalculateMouseRectangles();
// We calculate the pixel increment and the timer value for the showing animation
int nEvents;
if (nTimeToShow > 10)
{
nEvents = Math.Min((nTimeToShow / 10), BackgroundBitmap.Height);
nShowEvents = nTimeToShow / nEvents;
nIncrementShow = BackgroundBitmap.Height / nEvents;
}
else
{
nShowEvents = 10;
nIncrementShow = BackgroundBitmap.Height;
}
// We calculate the pixel increment and the timer value for the hiding animation
if( nTimeToHide > 10)
{
nEvents = Math.Min((nTimeToHide / 10), BackgroundBitmap.Height);
nHideEvents = nTimeToHide / nEvents;
nIncrementHide = BackgroundBitmap.Height / nEvents;
}
else
{
nHideEvents = 10;
nIncrementHide = BackgroundBitmap.Height;
}
switch (taskbarState)
{
case TaskbarStates.hidden:
taskbarState = TaskbarStates.appearing;
SetBounds(WorkAreaRectangle.Right-BackgroundBitmap.Width-17, WorkAreaRectangle.Bottom-1, BackgroundBitmap.Width, 0);
timer.Interval = nShowEvents;
timer.Start();
// We Show the popup without stealing focus
ShowWindow(this.Handle, 4);
break;
case TaskbarStates.appearing:
Refresh();
break;
case TaskbarStates.visible:
timer.Stop();
timer.Interval = nVisibleEvents;
timer.Start();
Refresh();
break;
case TaskbarStates.disappearing:
timer.Stop();
taskbarState = TaskbarStates.visible;
SetBounds(WorkAreaRectangle.Right-BackgroundBitmap.Width-17, WorkAreaRectangle.Bottom-BackgroundBitmap.Height-1, BackgroundBitmap.Width, BackgroundBitmap.Height);
timer.Interval = nVisibleEvents;
timer.Start();
Refresh();
break;
}
}
///
/// Hides the popup
///
///
public new void Hide()
{
if (taskbarState != TaskbarStates.hidden)
{
timer.Stop();
taskbarState = TaskbarStates.hidden;
base.Hide();
}
}
///
/// Sets the background bitmap and its transparency color
///
public void SetBackgroundBitmap(string strFilename, Color transparencyColor)
{
BackgroundBitmap = new Bitmap(strFilename);
Width = BackgroundBitmap.Width;
Height = BackgroundBitmap.Height;
Region = BitmapToRegion(BackgroundBitmap, transparencyColor);
}
///
/// Sets the background bitmap and its transparency color
///
public void SetBackgroundBitmap(Image image, Color transparencyColor)
{
BackgroundBitmap = new Bitmap(image);
Width = BackgroundBitmap.Width;
Height = BackgroundBitmap.Height;
Region = BitmapToRegion(BackgroundBitmap, transparencyColor);
}
///
/// Sets the 3-State Close Button bitmap, its transparency color and its coordinates
///
public void SetCloseBitmap(string strFilename, Color transparencyColor, Point position)
{
CloseBitmap = new Bitmap(strFilename);
CloseBitmap.MakeTransparent(transparencyColor);
CloseBitmapSize = new Size(CloseBitmap.Width/3, CloseBitmap.Height);
CloseBitmapLocation = position;
}
///
/// Sets the 3-State Close Button bitmap, its transparency color and its coordinates
///
public void SetCloseBitmap(Image image, Color transparencyColor, Point position)
{
CloseBitmap = new Bitmap(image);
CloseBitmap.MakeTransparent(transparencyColor);
CloseBitmapSize = new Size(CloseBitmap.Width/3, CloseBitmap.Height);
CloseBitmapLocation = position;
}
#endregion
#region TaskbarNotifier Protected Methods
protected void DrawCloseButton(Graphics grfx)
{
if (CloseBitmap != null)
{
Rectangle rectDest = new Rectangle(CloseBitmapLocation, CloseBitmapSize);
Rectangle rectSrc;
if (bIsMouseOverClose)
{
if (bIsMouseDown)
rectSrc = new Rectangle(new Point(CloseBitmapSize.Width*2, 0), CloseBitmapSize);
else
rectSrc = new Rectangle(new Point(CloseBitmapSize.Width, 0), CloseBitmapSize);
}
else
rectSrc = new Rectangle(new Point(0, 0), CloseBitmapSize);
grfx.DrawImage(CloseBitmap, rectDest, rectSrc, GraphicsUnit.Pixel);
}
}
protected void DrawText(Graphics grfx)
{
if (titleText != null && titleText.Length != 0)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Near;
sf.LineAlignment = StringAlignment.Center;
sf.FormatFlags = StringFormatFlags.NoWrap;
sf.Trimming = StringTrimming.EllipsisCharacter; // Added Rev 002
if (bIsMouseOverTitle)
grfx.DrawString(titleText, hoverTitleFont, new SolidBrush(hoverTitleColor), TitleRectangle, sf);
else
grfx.DrawString(titleText, normalTitleFont, new SolidBrush(normalTitleColor), TitleRectangle, sf);
}
if (contentText != null && contentText.Length != 0)
{
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
sf.FormatFlags = StringFormatFlags.MeasureTrailingSpaces;
sf.Trimming = StringTrimming.Word; // Added Rev 002
if (bIsMouseOverContent)
{
grfx.DrawString(contentText, hoverContentFont, new SolidBrush(hoverContentColor), ContentRectangle, sf);
if (EnableSelectionRectangle)
ControlPaint.DrawBorder3D(grfx, RealContentRectangle, Border3DStyle.Etched, Border3DSide.Top | Border3DSide.Bottom | Border3DSide.Left | Border3DSide.Right);
}
else
grfx.DrawString(contentText, normalContentFont, new SolidBrush(normalContentColor), ContentRectangle, sf);
}
}
protected void CalculateMouseRectangles()
{
Graphics grfx = CreateGraphics();
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
sf.FormatFlags = StringFormatFlags.MeasureTrailingSpaces;
SizeF sizefTitle = grfx.MeasureString(titleText, hoverTitleFont, TitleRectangle.Width, sf);
SizeF sizefContent = grfx.MeasureString(contentText, hoverContentFont, ContentRectangle.Width, sf);
grfx.Dispose();
// Added Rev 002
//We should check if the title size really fits inside the pre-defined title rectangle
if (sizefTitle.Height > TitleRectangle.Height)
{
RealTitleRectangle = new Rectangle(TitleRectangle.Left, TitleRectangle.Top, TitleRectangle.Width , TitleRectangle.Height );
}
else
{
RealTitleRectangle = new Rectangle(TitleRectangle.Left, TitleRectangle.Top, (int)sizefTitle.Width, (int)sizefTitle.Height);
}
RealTitleRectangle.Inflate(0,2);
// Added Rev 002
//We should check if the Content size really fits inside the pre-defined Content rectangle
if (sizefContent.Height > ContentRectangle.Height)
{
RealContentRectangle = new Rectangle((ContentRectangle.Width-(int)sizefContent.Width)/2+ContentRectangle.Left, ContentRectangle.Top, (int)sizefContent.Width, ContentRectangle.Height );
}
else
{
RealContentRectangle = new Rectangle((ContentRectangle.Width-(int)sizefContent.Width)/2+ContentRectangle.Left, (ContentRectangle.Height-(int)sizefContent.Height)/2+ContentRectangle.Top, (int)sizefContent.Width, (int)sizefContent.Height);
}
RealContentRectangle.Inflate(0,2);
}
protected Region BitmapToRegion(Bitmap bitmap, Color transparencyColor)
{
if (bitmap == null)
throw new ArgumentNullException("Bitmap", "Bitmap cannot be null!");
int height = bitmap.Height;
int width = bitmap.Width;
GraphicsPath path = new GraphicsPath();
for (int j=0; j
if (bitmap.GetPixel(i, j) == transparencyColor)
continue;
int x0 = i;
while ((i < width) && (bitmap.GetPixel(i, j) != transparencyColor))
i++;
path.AddRectangle(new Rectangle(x0, j, i-x0, 1));
}
Region region = new Region(path);
path.Dispose();
return region;
}
#endregion
#region TaskbarNotifier Events Overrides
protected void OnTimer(Object obj, EventArgs ea)
{
switch (taskbarState)
{
case TaskbarStates.appearing:
if (Height < BackgroundBitmap.Height)
SetBounds(Left, Top-nIncrementShow ,Width, Height + nIncrementShow);
else
{
timer.Stop();
Height = BackgroundBitmap.Height;
timer.Interval = nVisibleEvents;
taskbarState = TaskbarStates.visible;
timer.Start();
}
break;
case TaskbarStates.visible:
timer.Stop();
timer.Interval = nHideEvents;
// Added Rev 002
if ((bKeepVisibleOnMouseOver && !bIsMouseOverPopup ) || (!bKeepVisibleOnMouseOver))
{
taskbarState = TaskbarStates.disappearing;
}
//taskbarState = TaskbarStates.disappearing; // Rev 002
timer.Start();
break;
case TaskbarStates.disappearing:
// Added Rev 002
if (bReShowOnMouseOver && bIsMouseOverPopup)
{
taskbarState = TaskbarStates.appearing;
}
else
{
if (Top < WorkAreaRectangle.Bottom)
SetBounds(Left, Top + nIncrementHide, Width, Height - nIncrementHide);
else
Hide();
}
break;
}
}
protected override void OnMouseEnter(EventArgs ea)
{
base.OnMouseEnter(ea);
bIsMouseOverPopup = true;
Refresh();
}
protected override void OnMouseLeave(EventArgs ea)
{
base.OnMouseLeave(ea);
bIsMouseOverPopup = false;
bIsMouseOverClose = false;
bIsMouseOverTitle = false;
bIsMouseOverContent = false;
Refresh();
}
protected override void OnMouseMove(MouseEventArgs mea)
{
base.OnMouseMove(mea);
bool bContentModified = false;
if ( (mea.X > CloseBitmapLocation.X) && (mea.X < CloseBitmapLocation.X + CloseBitmapSize.Width) && (mea.Y > CloseBitmapLocation.Y) && (mea.Y < CloseBitmapLocation.Y + CloseBitmapSize.Height) && CloseClickable )
{
if (!bIsMouseOverClose)
{
bIsMouseOverClose = true;
bIsMouseOverTitle = false;
bIsMouseOverContent = false;
Cursor = Cursors.Hand;
bContentModified = true;
}
}
else if (RealContentRectangle.Contains(new Point(mea.X, mea.Y)) && ContentClickable)
{
if (!bIsMouseOverContent)
{
bIsMouseOverClose = false;
bIsMouseOverTitle = false;
bIsMouseOverContent = true;
Cursor = Cursors.Hand;
bContentModified = true;
}
}
else if (RealTitleRectangle.Contains(new Point(mea.X, mea.Y)) && TitleClickable)
{
if (!bIsMouseOverTitle)
{
bIsMouseOverClose = false;
bIsMouseOverTitle = true;
bIsMouseOverContent = false;
Cursor = Cursors.Hand;
bContentModified = true;
}
}
else
{
if (bIsMouseOverClose || bIsMouseOverTitle || bIsMouseOverContent)
bContentModified = true;
bIsMouseOverClose = false;
bIsMouseOverTitle = false;
bIsMouseOverContent = false;
Cursor = Cursors.Default;
}
if (bContentModified)
Refresh();
}
protected override void OnMouseDown(MouseEventArgs mea)
{
base.OnMouseDown(mea);
bIsMouseDown = true;
if (bIsMouseOverClose)
Refresh();
}
protected override void OnMouseUp(MouseEventArgs mea)
{
base.OnMouseUp(mea);
bIsMouseDown = false;
if (bIsMouseOverClose)
{
Hide();
if (CloseClick != null)
CloseClick(this, new EventArgs());
}
else if (bIsMouseOverTitle)
{
if (TitleClick != null)
TitleClick(this, new EventArgs());
}
else if (bIsMouseOverContent)
{
if (ContentClick != null)
ContentClick(this, new EventArgs());
}
}
protected override void OnPaintBackground(PaintEventArgs pea)
{
Graphics grfx = pea.Graphics;
grfx.PageUnit = GraphicsUnit.Pixel;
Graphics offScreenGraphics;
Bitmap offscreenBitmap;
offscreenBitmap = new Bitmap(BackgroundBitmap.Width, BackgroundBitmap.Height);
offScreenGraphics = Graphics.FromImage(offscreenBitmap);
if (BackgroundBitmap != null)
{
offScreenGraphics.DrawImage(BackgroundBitmap, 0, 0, BackgroundBitmap.Width, BackgroundBitmap.Height);
}
DrawCloseButton(offScreenGraphics);
DrawText(offScreenGraphics);
grfx.DrawImage(offscreenBitmap, 0, 0);
}
#endregion
}
}
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