实例介绍
【实例简介】
【实例截图】
【核心代码】
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Drawing2D;
using System.Drawing.Text;
using PushButtonState = System.Windows.Forms.VisualStyles.PushButtonState;
namespace Glass
{
/// <summary>
/// Represents a glass button control.
/// </summary>
[ToolboxBitmap(typeof(GlassButton)), ToolboxItem(true), ToolboxItemFilter("System.Windows.Forms"), Description("Raises an event when the user clicks it.")]
public partial class GlassButton : Button
{
#region " Constructors "
/// <summary>
/// Initializes a new instance of the <see cref="Glass.GlassButton" /> class.
/// </summary>
public GlassButton()
{
InitializeComponent();
timer.Interval = animationLength / framesCount;
base.BackColor = Color.Transparent;
BackColor = Color.Black;
ForeColor = Color.White;
OuterBorderColor = Color.White;
InnerBorderColor = Color.Black;
ShineColor = Color.White;
GlowColor = Color.FromArgb(-7488001);//unchecked((int)(0xFF8DBDFF)));
SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.OptimizedDoubleBuffer | ControlStyles.ResizeRedraw | ControlStyles.SupportsTransparentBackColor | ControlStyles.UserPaint, true);
SetStyle(ControlStyles.Opaque, false);
}
#endregion
#region " Fields and Properties "
private Color _backColor;
/// <summary>
/// Gets or sets the background color of the control.
/// </summary>
/// <returns>A <see cref="T:System.Drawing.Color" /> value representing the background color.</returns>
[DefaultValue(typeof(Color), "Black")]
public virtual new Color BackColor
{
get { return _backColor; }
set
{
if (!_backColor.Equals(value))
{
_backColor = value;
UseVisualStyleBackColor = false;
CreateFrames();
OnBackColorChanged(EventArgs.Empty);
}
}
}
/// <summary>
/// Gets or sets the foreground color of the control.
/// </summary>
/// <returns>The foreground <see cref="T:System.Drawing.Color" /> of the control.</returns>
[DefaultValue(typeof(Color), "White")]
public virtual new Color ForeColor
{
get { return base.ForeColor; }
set
{
base.ForeColor = value;
}
}
private Color _innerBorderColor;
/// <summary>
/// Gets or sets the inner border color of the control.
/// </summary>
/// <returns>A <see cref="T:System.Drawing.Color" /> value representing the color of the inner border.</returns>
[DefaultValue(typeof(Color), "Black"), Category("Appearance"), Description("The inner border color of the control.")]
public virtual Color InnerBorderColor
{
get { return _innerBorderColor; }
set
{
if (_innerBorderColor != value)
{
_innerBorderColor = value;
CreateFrames();
if (IsHandleCreated)
{
Invalidate();
}
OnInnerBorderColorChanged(EventArgs.Empty);
}
}
}
private Color _outerBorderColor;
/// <summary>
/// Gets or sets the outer border color of the control.
/// </summary>
/// <returns>A <see cref="T:System.Drawing.Color" /> value representing the color of the outer border.</returns>
[DefaultValue(typeof(Color), "White"), Category("Appearance"), Description("The outer border color of the control.")]
public virtual Color OuterBorderColor
{
get { return _outerBorderColor; }
set
{
if (_outerBorderColor != value)
{
_outerBorderColor = value;
CreateFrames();
if (IsHandleCreated)
{
Invalidate();
}
OnOuterBorderColorChanged(EventArgs.Empty);
}
}
}
private Color _shineColor;
/// <summary>
/// Gets or sets the shine color of the control.
/// </summary>
/// <returns>A <see cref="T:System.Drawing.Color" /> value representing the shine color.</returns>
[DefaultValue(typeof(Color), "White"), Category("Appearance"), Description("The shine color of the control.")]
public virtual Color ShineColor
{
get { return _shineColor; }
set
{
if (_shineColor != value)
{
_shineColor = value;
CreateFrames();
if (IsHandleCreated)
{
Invalidate();
}
OnShineColorChanged(EventArgs.Empty);
}
}
}
private Color _glowColor;
/// <summary>
/// Gets or sets the glow color of the control.
/// </summary>
/// <returns>A <see cref="T:System.Drawing.Color" /> value representing the glow color.</returns>
[DefaultValue(typeof(Color), "255,141,189,255"), Category("Appearance"), Description("The glow color of the control.")]
public virtual Color GlowColor
{
get { return _glowColor; }
set
{
if (_glowColor != value)
{
_glowColor = value;
CreateFrames();
if (IsHandleCreated)
{
Invalidate();
}
OnGlowColorChanged(EventArgs.Empty);
}
}
}
private bool _fadeOnFocus;
/// <summary>
/// Gets or sets a value indicating whether the button should fade in and fade out when it's getting and loosing the focus.
/// </summary>
/// <value><c>true</c> if fading with changing the focus; otherwise, <c>false</c>.</value>
[DefaultValue(false), Category("Appearance"), Description("Indicates whether the button should fade in and fade out when it is getting and loosing the focus.")]
public virtual bool FadeOnFocus
{
get { return _fadeOnFocus; }
set
{
if (_fadeOnFocus != value)
{
_fadeOnFocus = value;
}
}
}
private bool _isHovered;
private bool _isFocused;
private bool _isFocusedByKey;
private bool _isKeyDown;
private bool _isMouseDown;
private bool IsPressed { get { return _isKeyDown || (_isMouseDown && _isHovered); } }
/// <summary>
/// Gets the state of the button control.
/// </summary>
/// <value>The state of the button control.</value>
[Browsable(false)]
public PushButtonState State
{
get
{
if (!Enabled)
{
return PushButtonState.Disabled;
}
if (IsPressed)
{
return PushButtonState.Pressed;
}
if (_isHovered)
{
return PushButtonState.Hot;
}
if (_isFocused || IsDefault)
{
return PushButtonState.Default;
}
return PushButtonState.Normal;
}
}
#endregion
#region " Events "
/// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.InnerBorderColor" /> property changes.</summary>
[Description("Event raised when the value of the InnerBorderColor property is changed."), Category("Property Changed")]
public event EventHandler InnerBorderColorChanged;
/// <summary>
/// Raises the <see cref="E:Glass.GlassButton.InnerBorderColorChanged" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected virtual void OnInnerBorderColorChanged(EventArgs e)
{
if (InnerBorderColorChanged != null)
{
InnerBorderColorChanged(this, e);
}
}
/// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.OuterBorderColor" /> property changes.</summary>
[Description("Event raised when the value of the OuterBorderColor property is changed."), Category("Property Changed")]
public event EventHandler OuterBorderColorChanged;
/// <summary>
/// Raises the <see cref="E:Glass.GlassButton.OuterBorderColorChanged" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected virtual void OnOuterBorderColorChanged(EventArgs e)
{
if (OuterBorderColorChanged != null)
{
OuterBorderColorChanged(this, e);
}
}
/// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.ShineColor" /> property changes.</summary>
[Description("Event raised when the value of the ShineColor property is changed."), Category("Property Changed")]
public event EventHandler ShineColorChanged;
/// <summary>
/// Raises the <see cref="E:Glass.GlassButton.ShineColorChanged" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected virtual void OnShineColorChanged(EventArgs e)
{
if (ShineColorChanged != null)
{
ShineColorChanged(this, e);
}
}
/// <summary>Occurs when the value of the <see cref="P:Glass.GlassButton.GlowColor" /> property changes.</summary>
[Description("Event raised when the value of the GlowColor property is changed."), Category("Property Changed")]
public event EventHandler GlowColorChanged;
/// <summary>
/// Raises the <see cref="E:Glass.GlassButton.GlowColorChanged" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected virtual void OnGlowColorChanged(EventArgs e)
{
if (GlowColorChanged != null)
{
GlowColorChanged(this, e);
}
}
#endregion
#region " Overrided Methods "
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.SizeChanged" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected override void OnSizeChanged(EventArgs e)
{
CreateFrames();
base.OnSizeChanged(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.Click" /> event.
/// </summary>
/// <param name="e">The <see cref="System.EventArgs" /> instance containing the event data.</param>
protected override void OnClick(EventArgs e)
{
_isKeyDown = _isMouseDown = false;
base.OnClick(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.Enter" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected override void OnEnter(EventArgs e)
{
_isFocused = _isFocusedByKey = true;
base.OnEnter(e);
if (_fadeOnFocus)
{
FadeIn();
}
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.Leave" /> event.
/// </summary>
/// <param name="e">An <see cref="T:System.EventArgs" /> that contains the event data.</param>
protected override void OnLeave(EventArgs e)
{
base.OnLeave(e);
_isFocused = _isFocusedByKey = _isKeyDown = _isMouseDown = false;
Invalidate();
if (_fadeOnFocus)
{
FadeOut();
}
}
/// <summary>
/// Raises the <see cref="M:System.Windows.Forms.ButtonBase.OnKeyUp(System.Windows.Forms.KeyEventArgs)" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.KeyEventArgs" /> that contains the event data.</param>
protected override void OnKeyDown(KeyEventArgs e)
{
if (e.KeyCode == Keys.Space)
{
_isKeyDown = true;
Invalidate();
}
base.OnKeyDown(e);
}
/// <summary>
/// Raises the <see cref="M:System.Windows.Forms.ButtonBase.OnKeyUp(System.Windows.Forms.KeyEventArgs)" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.KeyEventArgs" /> that contains the event data.</param>
protected override void OnKeyUp(KeyEventArgs e)
{
if (_isKeyDown && e.KeyCode == Keys.Space)
{
_isKeyDown = false;
Invalidate();
}
base.OnKeyUp(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseDown" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains the event data.</param>
protected override void OnMouseDown(MouseEventArgs e)
{
if (!_isMouseDown && e.Button == MouseButtons.Left)
{
_isMouseDown = true;
_isFocusedByKey = false;
Invalidate();
}
base.OnMouseDown(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseUp" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains the event data.</param>
protected override void OnMouseUp(MouseEventArgs e)
{
if (_isMouseDown)
{
_isMouseDown = false;
Invalidate();
}
base.OnMouseUp(e);
}
/// <summary>
/// Raises the <see cref="M:System.Windows.Forms.Control.OnMouseMove(System.Windows.Forms.MouseEventArgs)" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.MouseEventArgs" /> that contains the event data.</param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Button != MouseButtons.None)
{
if (!ClientRectangle.Contains(e.X, e.Y))
{
if (_isHovered)
{
_isHovered = false;
Invalidate();
}
}
else if (!_isHovered)
{
_isHovered = true;
Invalidate();
}
}
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseEnter" /> event.
/// </summary>
/// <param name="e">The <see cref="System.EventArgs" /> instance containing the event data.</param>
protected override void OnMouseEnter(EventArgs e)
{
_isHovered = true;
FadeIn();
Invalidate();
base.OnMouseEnter(e);
}
/// <summary>
/// Raises the <see cref="E:System.Windows.Forms.Control.MouseLeave" /> event.
/// </summary>
/// <param name="e">The <see cref="System.EventArgs" /> instance containing the event data.</param>
protected override void OnMouseLeave(EventArgs e)
{
_isHovered = false;
if (!(FadeOnFocus && _isFocusedByKey)) FadeOut();
Invalidate();
base.OnMouseLeave(e);
}
#endregion
#region " Painting "
/// <summary>
/// Raises the <see cref="M:System.Windows.Forms.ButtonBase.OnPaint(System.Windows.Forms.PaintEventArgs)" /> event.
/// </summary>
/// <param name="e">A <see cref="T:System.Windows.Forms.PaintEventArgs" /> that contains the event data.</param>
protected override void OnPaint(PaintEventArgs e)
{
DrawButtonBackgroundFromBuffer(e.Graphics);
DrawForegroundFromButton(e);
DrawButtonForeground(e.Graphics);
if (Paint != null)
{
Paint(this, e);
}
}
/// <summary>
/// Occurs when the control is redrawn.
/// </summary>
public new event PaintEventHandler Paint;
private void DrawButtonBackgroundFromBuffer(Graphics graphics)
{
int frame;
if (!Enabled)
{
frame = FRAME_DISABLED;
}
else if (IsPressed)
{
frame = FRAME_PRESSED;
}
else if (!IsAnimating && _currentFrame == 0)
{
frame = FRAME_NORMAL;
}
else
{
if (!HasAnimationFrames)
{
CreateFrames(true);
}
frame = FRAME_ANIMATED _currentFrame;
}
if (_frames == null || _frames.Count == 0)
{
CreateFrames();
}
graphics.DrawImage(_frames[frame], Point.Empty);
}
private Image CreateBackgroundFrame(bool pressed, bool hovered,
bool animating, bool enabled, float glowOpacity)
{
Rectangle rect = ClientRectangle;
if (rect.Width <= 0)
{
rect.Width = 1;
}
if (rect.Height <= 0)
{
rect.Height = 1;
}
Image img = new Bitmap(rect.Width, rect.Height);
using (Graphics g = Graphics.FromImage(img))
{
g.Clear(Color.Transparent);
DrawButtonBackground(g, rect, pressed, hovered, animating, enabled,
_outerBorderColor, _backColor, _glowColor, _shineColor, _innerBorderColor,
glowOpacity);
}
return img;
}
private static void DrawButtonBackground(Graphics g, Rectangle rectangle,
bool pressed, bool hovered, bool animating, bool enabled,
Color outerBorderColor, Color backColor, Color glowColor, Color shineColor,
Color innerBorderColor, float glowOpacity)
{
SmoothingMode sm = g.SmoothingMode;
g.SmoothingMode = SmoothingMode.AntiAlias;
#region " white border "
Rectangle rect = rectangle;
rect.Width--;
rect.Height--;
using (GraphicsPath bw = CreateRoundRectangle(rect, 4))
{
using (Pen p = new Pen(outerBorderColor))
{
g.DrawPath(p, bw);
}
}
#endregion
rect.X ;
rect.Y ;
rect.Width -= 2;
rect.Height -= 2;
Rectangle rect2 = rect;
rect2.Height >>= 1;
#region " content "
using (GraphicsPath bb = CreateRoundRectangle(rect, 2))
{
int opacity = pressed ? 0xcc : 0x7f;
using (Brush br = new SolidBrush(Color.FromArgb(opacity, backColor)))
{
g.FillPath(br, bb);
}
}
#endregion
#region " glow "
if ((hovered || animating) && !pressed)
{
using (GraphicsPath clip = CreateRoundRectangle(rect, 2))
{
g.SetClip(clip, CombineMode.Intersect);
using (GraphicsPath brad = CreateBottomRadialPath(rect))
{
using (PathGradientBrush pgr = new PathGradientBrush(brad))
{
int opacity = (int)(0xB2 * glowOpacity .5f);
RectangleF bounds = brad.GetBounds();
pgr.CenterPoint = new PointF((bounds.Left bounds.Right) / 2f, (bounds.Top bounds.Bottom) / 2f);
pgr.CenterColor = Color.FromArgb(opacity, glowColor);
pgr.SurroundColors = new Color[] { Color.FromArgb(0, glowColor) };
g.FillPath(pgr, brad);
}
}
g.ResetClip();
}
}
#endregion
#region " shine "
if (rect2.Width > 0 && rect2.Height > 0)
{
rect2.Height ;
using (GraphicsPath bh = CreateTopRoundRectangle(rect2, 2))
{
rect2.Height ;
int opacity = 0x99;
if (pressed | !enabled)
{
opacity = (int)(.4f * opacity .5f);
}
using (LinearGradientBrush br = new LinearGradientBrush(rect2, Color.FromArgb(opacity, shineColor), Color.FromArgb(opacity / 3, shineColor), LinearGradientMode.Vertical))
{
g.FillPath(br, bh);
}
}
rect2.Height -= 2;
}
#endregion
#region " black border "
using (GraphicsPath bb = CreateRoundRectangle(rect, 3))
{
using (Pen p = new Pen(innerBorderColor))
{
g.DrawPath(p, bb);
}
}
#endregion
g.SmoothingMode = sm;
}
private void DrawButtonForeground(Graphics g)
{
if (Focused && ShowFocusCues/* && isFocusedByKey*/)
{
Rectangle rect = ClientRectangle;
rect.Inflate(-4, -4);
ControlPaint.DrawFocusRectangle(g, rect);
}
}
private Button _imageButton;
private void DrawForegroundFromButton(PaintEventArgs pevent)
{
if (_imageButton == null)
{
_imageButton = new Button();
_imageButton.Parent = new TransparentControl();
_imageButton.SuspendLayout();
_imageButton.BackColor = Color.Transparent;
_imageButton.FlatAppearance.BorderSize = 0;
_imageButton.FlatStyle = FlatStyle.Flat;
}
else
{
_imageButton.SuspendLayout();
}
_imageButton.AutoEllipsis = AutoEllipsis;
if (Enabled)
{
_imageButton.ForeColor = ForeColor;
}
else
{
_imageButton.ForeColor = Color.FromArgb((3 * ForeColor.R _backColor.R) >> 2,
(3 * ForeColor.G _backColor.G) >> 2,
(3 * ForeColor.B _backColor.B) >> 2);
}
_imageButton.Font = Font;
_imageButton.RightToLeft = RightToLeft;
_imageButton.Image = Image;
if (Image != null && !Enabled)
{
Size size = Image.Size;
float[][] newColorMatrix = new float[5][];
newColorMatrix[0] = new float[] { 0.2125f, 0.2125f, 0.2125f, 0f, 0f };
newColorMatrix[1] = new float[] { 0.2577f, 0.2577f, 0.2577f, 0f, 0f };
newColorMatrix[2] = new float[] { 0.0361f, 0.0361f, 0.0361f, 0f, 0f };
float[] arr = new float[5];
arr[3] = 1f;
newColorMatrix[3] = arr;
newColorMatrix[4] = new float[] { 0.38f, 0.38f, 0.38f, 0f, 1f };
System.Drawing.Imaging.ColorMatrix matrix = new System.Drawing.Imaging.ColorMatrix(newColorMatrix);
System.Drawing.Imaging.ImageAttributes disabledImageAttr = new System.Drawing.Imaging.ImageAttributes();
disabledImageAttr.ClearColorKey();
disabledImageAttr.SetColorMatrix(matrix);
_imageButton.Image = new Bitmap(Image.Width, Image.Height);
using (Graphics gr = Graphics.FromImage(_imageButton.Image))
{
gr.DrawImage(Image, new Rectangle(0, 0, size.Width, size.Height), 0, 0, size.Width, size.Height, GraphicsUnit.Pixel, disabledImageAttr);
}
}
_imageButton.ImageAlign = ImageAlign;
_imageButton.ImageIndex = ImageIndex;
_imageButton.ImageKey = ImageKey;
_imageButton.ImageList = ImageList;
_imageButton.Padding = Padding;
_imageButton.Size = Size;
_imageButton.Text = Text;
_imageButton.TextAlign = TextAlign;
_imageButton.TextImageRelation = TextImageRelation;
_imageButton.UseCompatibleTextRendering = UseCompatibleTextRendering;
_imageButton.UseMnemonic = UseMnemonic;
_imageButton.ResumeLayout();
InvokePaint(_imageButton, pevent);
if (_imageButton.Image != null && _imageButton.Image != Image)
{
_imageButton.Image.Dispose();
_imageButton.Image = null;
}
}
private class TransparentControl : Control
{
protected override void OnPaintBackground(PaintEventArgs pevent) { }
protected override void OnPaint(PaintEventArgs e) { }
}
private static GraphicsPath CreateRoundRectangle(Rectangle rectangle, int radius)
{
GraphicsPath path = new GraphicsPath();
int l = rectangle.Left;
int t = rectangle.Top;
int w = rectangle.Width;
int h = rectangle.Height;
int d = radius << 1;
path.AddArc(l, t, d, d, 180, 90); // topleft
path.AddLine(l radius, t, l w - radius, t); // top
path.AddArc(l w - d, t, d, d, 270, 90); // topright
path.AddLine(l w, t radius, l w, t h - radius); // right
path.AddArc(l w - d, t h - d, d, d, 0, 90); // bottomright
path.AddLine(l w - radius, t h, l radius, t h); // bottom
path.AddArc(l, t h - d, d, d, 90, 90); // bottomleft
path.AddLine(l, t h - radius, l, t radius); // left
path.CloseFigure();
return path;
}
private static GraphicsPath CreateTopRoundRectangle(Rectangle rectangle, int radius)
{
GraphicsPath path = new GraphicsPath();
int l = rectangle.Left;
int t = rectangle.Top;
int w = rectangle.Width;
int h = rectangle.Height;
int d = radius << 1;
path.AddArc(l, t, d, d, 180, 90); // topleft
path.AddLine(l radius, t, l w - radius, t); // top
path.AddArc(l w - d, t, d, d, 270, 90); // topright
path.AddLine(l w, t radius, l w, t h); // right
path.AddLine(l w, t h, l, t h); // bottom
path.AddLine(l, t h, l, t radius); // left
path.CloseFigure();
return path;
}
private static GraphicsPath CreateBottomRadialPath(Rectangle rectangle)
{
GraphicsPath path = new GraphicsPath();
RectangleF rect = rectangle;
rect.X -= rect.Width * .35f;
rect.Y -= rect.Height * .15f;
rect.Width *= 1.7f;
rect.Height *= 2.3f;
path.AddEllipse(rect);
path.CloseFigure();
return path;
}
#endregion
#region " Unused Properties & Events "
/// <summary>This property is not relevant for this class.</summary>
/// <returns>This property is not relevant for this class.</returns>
[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never)]
public new FlatButtonAppearance FlatAppearance
{
get { return base.FlatAppearance; }
}
/// <summary>This property is not relevant for this class.</summary>
/// <returns>This property is not relevant for this class.</returns>
[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never)]
public new FlatStyle FlatStyle
{
get { return base.FlatStyle; }
set { base.FlatStyle = value; }
}
/// <summary>This property is not relevant for this class.</summary>
/// <returns>This property is not relevant for this class.</returns>
[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden), EditorBrowsable(EditorBrowsableState.Never)]
public new bool UseVisualStyleBackColor
{
get { return base.UseVisualStyleBackColor; }
set { base.UseVisualStyleBackColor = value; }
}
#endregion
#region " Animation Support "
private List<Image> _frames;
private const int FRAME_DISABLED = 0;
private const int FRAME_PRESSED = 1;
private const int FRAME_NORMAL = 2;
private const int FRAME_ANIMATED = 3;
private bool HasAnimationFrames
{
get
{
return _frames != null && _frames.Count > FRAME_ANIMATED;
}
}
private void CreateFrames()
{
CreateFrames(false);
}
private void CreateFrames(bool withAnimationFrames)
{
DestroyFrames();
if (!IsHandleCreated)
{
return;
}
if (_frames == null)
{
_frames = new List<Image>();
}
_frames.Add(CreateBackgroundFrame(false, false, false, false, 0));
_frames.Add(CreateBackgroundFrame(true, true, false, true, 0));
_frames.Add(CreateBackgroundFrame(false, false, false, true, 0));
if (!withAnimationFrames)
{
return;
}
for (int i = 0; i < framesCount; i )
{
_frames.Add(CreateBackgroundFrame(false, true, true, true, (float)i / (framesCount - 1F)));
}
}
private void DestroyFrames()
{
if (_frames != null)
{
while (_frames.Count > 0)
{
_frames[_frames.Count - 1].Dispose();
_frames.RemoveAt(_frames.Count - 1);
}
}
}
private const int animationLength = 300;
private const int framesCount = 10;
private int _currentFrame;
private int _direction;
private bool IsAnimating
{
get
{
return _direction != 0;
}
}
private void FadeIn()
{
_direction = 1;
timer.Enabled = true;
}
private void FadeOut()
{
_direction = -1;
timer.Enabled = true;
}
private void timer_Tick(object sender, EventArgs e)
{
if (!timer.Enabled)
{
return;
}
Refresh();
_currentFrame = _direction;
if (_currentFrame == -1)
{
_currentFrame = 0;
timer.Enabled = false;
_direction = 0;
return;
}
if (_currentFrame == framesCount)
{
_currentFrame = framesCount - 1;
timer.Enabled = false;
_direction = 0;
}
}
#endregion
}
}
好例子网口号：伸出你的我的手 — 分享！
相关软件
小贴士
感谢您为本站写下的评论，您的评论对其它用户来说具有重要的参考价值，所以请认真填写。
- 类似“顶”、“沙发”之类没有营养的文字，对勤劳贡献的楼主来说是令人沮丧的反馈信息。
- 相信您也不想看到一排文字/表情墙，所以请不要反馈意义不大的重复字符，也请尽量不要纯表情的回复。
- 提问之前请再仔细看一遍楼主的说明，或许是您遗漏了。
- 请勿到处挖坑绊人、招贴广告。既占空间让人厌烦，又没人会搭理，于人于己都无利。
关于好例子网
本站旨在为广大IT学习爱好者提供一个非营利性互相学习交流分享平台。本站所有资源都可以被免费获取学习研究。本站资源来自网友分享，对搜索内容的合法性不具有预见性、识别性、控制性，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，平台无法对用户传输的作品、信息、内容的权属或合法性、安全性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论平台是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二与二十三条之规定，若资源存在侵权或相关问题请联系本站客服人员，点此联系我们。关于更多版权及免责申明参见 版权及免责申明
网友评论
我要评论