001
19.12.2006, 19:26 Uhr
~Jack
Gast
|
Hallo erstma,
also du erbst erstmal von der Klasse (z.B. TextBox) und änderst die Methoden, die für das Darstellen verantwortlich sind.
ein großes Beispiel findest du unter:
www.codeproject.com/csharp/dzcollectioneditor.asp
(der Kerl hat z.B. seine eigenen Controls erstellt)
oder ein Beispiel von mir:
| Code: |
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Windows.Forms;
using ControlsPlus.Enumeration;
using System.Drawing;
namespace ControlsPlus
{
public class TextBoxPlus : TextBox, Observer
{
#region variables
private ControlsPlus.Enumeration.State state = ControlsPlus.Enumeration.State.Normal;
private System.Windows.Forms.BorderStyle cbs_style_old = System.Windows.Forms.BorderStyle.FixedSingle; // Wird für den Start des Programmes gebraucht; ab 2005
private ControlsPlus.Enumeration.CustomBorderStyle cbs_style = ControlsPlus.Enumeration.CustomBorderStyle.Flat;
private ControlDesigner controlDesigner = null;
#endregion
#region Constructor
public TextBoxPlus()
{
base.BorderStyle = cbs_style_old;
Designer = ControlColors.getControlDesigner();
}
#endregion
#region Proberties
[Browsable(false)]
protected Enumeration.State State
{
get { return state; }
set
{
if(value!=state)
{
state = value;
Invalidate();
}
}
}
[Browsable(true)]
[Category("Appearance")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
public new Enumeration.CustomBorderStyle BorderStyle
{
get { return cbs_style; }
set
{
cbs_style = value;
switch(value)
{
case Enumeration.CustomBorderStyle.Fixed3D:
cbs_style_old = System.Windows.Forms.BorderStyle.Fixed3D;
base.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
Console.WriteLine("Fixed3D");
break;
case Enumeration.CustomBorderStyle.Flat:
cbs_style_old = System.Windows.Forms.BorderStyle.Fixed3D;
base.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
Console.WriteLine("Flat");
break;
}
}
}
#endregion
#region Overrides
protected override void OnMouseEnter(EventArgs e)
{
base.OnMouseEnter(e);
State = Enumeration.State.Selected;
}
protected override void OnMouseLeave(EventArgs e)
{
base.OnMouseLeave(e);
if ( !ContainsFocus )
{
State = Enumeration.State.Normal;
}
}
protected override void OnGotFocus(EventArgs e)
{
base.OnGotFocus(e);
State = Enumeration.State.Selected;
}
protected override void OnLostFocus(EventArgs e)
{
base.OnLostFocus(e);
State = Enumeration.State.Normal;
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
if(m.Msg==(int)Msgs.WM_PAINT)
{
//Console.WriteLine("WM_PAINT");
border();
}
}
#endregion
#region Private-Methods
/// <summary>
/// Paint the border of the TextBox
/// </summary>
private void border()
{
if(this.BorderStyle == Enumeration.CustomBorderStyle.Flat)
{
using (Graphics g=this.CreateGraphics())
{
Color borderColor;
if(Enabled)
{
// is Enabled
if(state == Enumeration.State.Normal)
{
// is Normal
if(this.ReadOnly)
{
// is ReadOnly
borderColor = ControlColors.readOnlyBorder;
}
else
{
// is not ReadOnly
borderColor = ControlColors.normalBorder;
}
}
else
{
// is Selected or Pressed
borderColor = ControlColors.selectedBorder;
}
}
else
{
// is Disabled
borderColor = ControlColors.disabledBorder;
}
using (Pen pen= new Pen(borderColor))
{
g.DrawRectangle(pen,new Rectangle(0,0,this.Width-1, this.Height-1));
}
}
}
}
#endregion
}
}
namespace ControlsPlus.Enumeration
{
// Art des Styles
public enum CustomBorderStyle
{
Flat = 0,
Fixed3D = 1
}
// Stufe des Styles, wenn Flat
public enum Style
{
Normal = 0,
Pressed = 1,
Selected = 2
}
public enum State
{
Normal = 0,
Pressed = 1,
Selected = 2
}
public enum Msgs
{
WM_PAINT = 0x000F
}
}
using System;
using System.Windows.Forms;
using System.Drawing;
namespace ControlsPlus
{
public class ControlColors
{
private static Color defaultHighlightColor = SystemColors.Highlight;
private static Color defaultControlColor = SystemColors.Control;
public static Color normalBorder
{
get { return defaultControlColor; }
}
public static Color highlightBorder
{
get { return defaultHighlightColor; }
}
public static void setNormalBorder(Color color)
{
defaultControlColor = color;
}
public static void setHighlightBorder(Color color)
{
defaultHighlightColor = color;
}
public static Color selectedBorder
{
get { return Color.FromArgb(130, highlightBorder); }
}
public static Color readOnlyBorder
{
get { return ControlPaint.LightLight(normalBorder); }
}
public static Color disabledBorder
{
get { return ControlPaint.Light(normalBorder); }
}
}
}
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(PS sollten im Code fehler vorkommen, kann es daher sein, da ich einiges für diesen Post rausgelöscht habe was einfach nur unnötig war)
Sollten noch fragen bestehen: MELDEN! |
