C# OutlookBar导航菜单控件 示例源码

【实例简介】

Outlook Bar的一个实现。更适合应用程序自动化层（AAL）框架的实现，适合AAL事物的愿景
【实例截图】

【核心代码】

using System;
using System.Drawing;
using System.Windows.Forms;

namespace OutlookBar
{
internal class BandTagInfo
{
public OutlookBar outlookBar;
public int index;

public BandTagInfo(OutlookBar ob, int index)
{
outlookBar=ob;
this.index=index;
}
}

public class OutlookBar : Panel
{
private int buttonHeight;
private int selectedBand;
private int selectedBandHeight;

public int ButtonHeight
{
get
{
return buttonHeight;
}

set
{
buttonHeight=value;
// do recalc layout for entire bar
}
}

public int SelectedBand
{
get
{
return selectedBand;
}
set
{
SelectBand(value);
}
}

public OutlookBar()
{
buttonHeight=25;
selectedBand=0;
selectedBandHeight=0;
}

public void Initialize()
{
// parent must exist!
Parent.SizeChanged =new EventHandler(SizeChangedEvent);
}

public void AddBand(string caption, ContentPanel content)
{
content.outlookBar=this;
int index=Controls.Count;
BandTagInfo bti=new BandTagInfo(this, index);
BandPanel bandPanel=new BandPanel(caption, content, bti);
Controls.Add(bandPanel);
UpdateBarInfo();
RecalcLayout(bandPanel, index);
}

public void SelectBand(int index)
{
selectedBand=index;
RedrawBands();
}

private void RedrawBands()
{
for (int i=0; i<Controls.Count; i )
{
BandPanel bp=Controls[i] as BandPanel;
RecalcLayout(bp, i);
}
}

private void UpdateBarInfo()
{
selectedBandHeight=ClientRectangle.Height-(Controls.Count * buttonHeight);
}

private void RecalcLayout(BandPanel bandPanel, int index)
{
int vPos=(index <= selectedBand) ? buttonHeight*index : buttonHeight*index selectedBandHeight;
int height=selectedBand==index ? selectedBandHeight buttonHeight : buttonHeight;

// the band dimensions
bandPanel.Location=new Point(0, vPos);
bandPanel.Size=new Size(ClientRectangle.Width, height);

// the contained button dimensions
bandPanel.Controls[0].Location=new Point(0, 0);
bandPanel.Controls[0].Size=new Size(ClientRectangle.Width, buttonHeight);

// the contained content panel dimensions
bandPanel.Controls[1].Location=new Point(0, buttonHeight);
bandPanel.Controls[1].Size=new Size(ClientRectangle.Width-2, height-8);
}

private void SizeChangedEvent(object sender, EventArgs e)
{
Size=new Size(Size.Width, ((Control)sender).ClientRectangle.Size.Height);
UpdateBarInfo();
RedrawBands();
}
}

internal class BandPanel : Panel
{
public BandPanel(string caption, ContentPanel content, BandTagInfo bti)
{
BandButton bandButton=new BandButton(caption, bti);
Controls.Add(bandButton);
Controls.Add(content);
}
}

internal class BandButton : Button
{
private BandTagInfo bti;

public BandButton(string caption, BandTagInfo bti)
{
Text=caption;
FlatStyle=FlatStyle.Standard;
Visible=true;
this.bti=bti;
Click =new EventHandler(SelectBand);
}

private void SelectBand(object sender, EventArgs e)
{
bti.outlookBar.SelectBand(bti.index);
}
}

public abstract class ContentPanel : Panel
{
public OutlookBar outlookBar;

public ContentPanel()
{
// initial state
Visible=true;
}
}

public class IconPanel : ContentPanel
{
protected int iconSpacing;
protected int margin;

public int IconSpacing
{
get
{
return iconSpacing;
}
}

public int Margin
{
get
{
return margin;
}
}

public IconPanel()
{
margin=10;
iconSpacing=32 15 10; // icon height text height margin
BackColor=Color.LightBlue;
AutoScroll=true;
}

public void AddIcon(string caption, Image image, EventHandler onClickEvent)
{
int index=Controls.Count/2; // two entries per icon
PanelIcon panelIcon=new PanelIcon(this, image, index, onClickEvent);
Controls.Add(panelIcon);

Label label=new Label();
label.Text=caption;
label.Visible=true;
label.Location=new Point(0, margin image.Size.Height index*iconSpacing);
label.Size=new Size(Size.Width, 15);
label.TextAlign=ContentAlignment.TopCenter;
label.Click =onClickEvent;
label.Tag=panelIcon;
Controls.Add(label);
}
}

public class PanelIcon : PictureBox
{
public int index;
public IconPanel iconPanel;

private Color bckgColor;
private bool mouseEnter;

public int Index
{
get
{
return index;
}
}

public PanelIcon(IconPanel parent, Image image, int index, EventHandler onClickEvent)
{
this.index=index;
this.iconPanel=parent;
Image=image;
Visible=true;
Location=new Point(iconPanel.outlookBar.Size.Width/2-image.Size.Width/2,
iconPanel.Margin index*iconPanel.IconSpacing);
Size=image.Size;
Click =onClickEvent;
Tag=this;

MouseEnter =new EventHandler(OnMouseEnter);
MouseLeave =new EventHandler(OnMouseLeave);
MouseMove =new MouseEventHandler(OnMouseMove);

bckgColor=iconPanel.BackColor;
mouseEnter=false;
}

private void OnMouseMove(object sender, MouseEventArgs args)
{
if ( (args.X < Size.Width-2) &&
(args.Y < Size.Width-2) &&
(!mouseEnter) )
{
BackColor=Color.LightCyan;
BorderStyle=BorderStyle.FixedSingle;
Location=Location-new Size(1, 1);
mouseEnter=true;
}
}

private void OnMouseEnter(object sender, EventArgs e)
{
}

private void OnMouseLeave(object sender, EventArgs e)
{
if (mouseEnter)
{
BackColor=bckgColor;
BorderStyle=BorderStyle.None;
Location=Location new Size(1, 1);
mouseEnter=false;
}
}
}
}