c#winform主題實現的一個方法
阿新 • • 發佈：2021-02-24
winform的主題實現沒有bs裡面那麼舒服，下面做了一個簡單實現，記錄一下。
1、一個介面，需要做主題的控制元件、窗體都要實現這個介面
/// <summary>
/// 使用主題的控制元件、窗體需要實現此介面
/// </summary>
public interface IThemeControl
{
ITheme ThisTheme { get; set; }
/// <summary>
/// 重置主題
/// </summary>
void ResetTheme();
}2、一個主題介面
/// <summary>
/// 主題
/// </summary>
public interface ITheme
{
int Code { get; }
/// <summary>
/// 初始化
/// </summary>
void Init();
}
3、一個主題控制類
1 /// <summary>
2 /// 主題設定
3 /// </summary>
4 public class Theme
5 {
6 internal delegate void CheckedThemeEventHandle(ITheme theme);
7 /// <summary>
8 /// 改變主題事件
9 /// </summary>
10 static internal event CheckedThemeEventHandle CheckedThemeEvent;
11 static ITheme currentTheme;
12 /// <summary>
13 /// 當前主題
14 /// </summary>
15 internal static ITheme CurrentTheme
16 {
17 get { return currentTheme; }
18 set
19 {
20 if (value == null)
21 return;
22 currentTheme = value;
23 currentTheme.Init();
24 if (CheckedThemeEvent != null)
25 {
26 CheckedThemeEvent(value);
27 }
28 }
29 }
30 /// <summary>
31 /// 載入控制元件的主題
32 /// </summary>
33 /// <param name="control"></param>
34 internal static void LoadTheme(IThemeControl control)
35 {
36 control.ResetTheme();
37 }
38 }4、新增一個窗體通用的主題介面
public interface IThemeBaseForm
{
/// <summary>
/// 基本窗體背景色
/// </summary>
Color BaseFormBackgroundColor { get; }
/// <summary>
/// 基本窗體文字顏色
/// </summary>
Color BaseFormForeColor { get; }
/// <summary>
/// 標題欄顏色
/// </summary>
Color BaseFormTitleColor { get; }
}5、新增對應的窗體或控制元件的主題介面
窗體的樣式介面（例子）
public interface IThemeFrmLock : IThemeBaseForm
{
Color FrmLock_TxtFillColor { get; }
Color FrmLock_TxtRectColor { get; }
Color FrmLock_TxtForeColor { get; }
Color FrmLock_btnFillColor { get; }
Color FrmLock_btnForeColor { get; }
Color FrmLock_btnRectColor { get; }
}
控制元件的樣式介面（例子）
public interface IThemeUCFileItem : ITheme
{
Color UCFileItem_BackgroundColor { get; }
Color UCFileItem_ForeColor { get; }
Color UCFileItem_BoxColor { get; }
Image UCFileItem_Img1 { get; }
Image UCFileItem_Img2 { get; }
Image UCFileItem_Img3 { get; }
Image UCFileItem_Img4 { get; }
Image UCFileItem_Img5 { get; }
}
我這裡做一個深色一個淺色主題
深色的
/// <summary>
/// 深色
/// </summary>
public partial class Dark :
ITheme,
IThemeBaseForm,
IThemeFrmLock,
IThemeUCFileItem
{
public int Code { get { return 1; } }
/// <summary>
/// 基本窗體背景色
/// </summary>
public Color BaseFormBackgroundColor { get { return Color.FromArgb(37, 41, 59); } }
/// <summary>
/// 基本窗體文字顏色
/// </summary>
public Color BaseFormForeColor { get { return Color.White; } }
public Color BaseFormTitleColor { get { return Color.FromArgb(38, 45, 67); } }
/// <summary>
/// 初始化操作
/// </summary>
public void Init()
{
//這裡做一些修改主題時候的業務
}
#region 重寫運算子
/// <summary>
/// 重寫==
/// </summary>
/// <param name="lhs"></param>
/// <param name="rhs"></param>
/// <returns></returns>
public static bool operator ==(Dark lhs, ITheme rhs)
{
if (lhs == null && rhs == null)
return true;
else
{
if (lhs != null && rhs != null)
{
if (lhs.Code == rhs.Code)
return true;
else
return false;
}
else
return false;
}
}
/// <summary>
/// 重寫!=
/// </summary>
/// <param name="lhs"></param>
/// <param name="rhs"></param>
/// <returns></returns>
public static bool operator !=(Dark lhs, ITheme rhs)
{
if (lhs == null && rhs == null)
return false;
else
{
if (lhs != null && rhs != null)
{
if (lhs.Code == rhs.Code)
return false;
else
return true;
}
else
return true;
}
}
public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return false;
}
if (obj is ITheme)
{
if (Code == ((ITheme)obj).Code)
return true;
else
return false;
}
else
{
return false;
}
}
public override int GetHashCode()
{
return base.GetHashCode();
}
#endregion
}
淺色的也一樣 只需要實現
ITheme, IThemeBaseForm, IThemeFrmLock, IThemeUCFileItem
這些介面就行（定義的控制元件介面，這裡都要進行實現）
然後新增具體的控制元件主題實現類
/// <summary>
/// FrmLock
/// </summary>
public partial class Dark
{
public Color FrmLock_TxtFillColor { get { return Color.FromArgb(34, 40, 60); } }
public Color FrmLock_TxtRectColor { get { return Color.FromArgb(65, 75, 101); } }
public Color FrmLock_TxtForeColor { get { return Color.White; } }
public Color FrmLock_btnFillColor { get { return Color.FromArgb(46, 54, 76); } }
public Color FrmLock_btnForeColor { get { return Color.FromArgb(175, 193, 225); } }
public Color FrmLock_btnRectColor { get { return Color.FromArgb(65, 75, 101); } }
}
然後就是去控制元件或窗體裡面做事情了，實現介面Theme.IThemeControl，建構函式裡面新增CheckedThemeEvent事件
public partial class FrmLock : FrmWithTitle,Theme.IThemeControl
{
public FrmLock()
{
try
{
InitializeComponent();
Theme.Theme.CheckedThemeEvent += Theme_CheckedThemeEvent;
}
catch (Exception ex)
{
}
}
void Theme_CheckedThemeEvent(Theme.ITheme theme)
{
if (this.Visible)
{
ThisTheme = theme;
}
}
VisibleChanged事件新增內容
private void FrmLock_VisibleChanged(object sender, EventArgs e)
{
if (Visible)
{
ThisTheme = Theme.Theme.CurrentTheme;
}
}
實現的介面
Theme.ITheme thisTheme = null;
/// <summary>
/// 當前頁面正在使用的主題
/// </summary>
public Theme.ITheme ThisTheme
{
get
{
if (thisTheme == null)
{
ThisTheme = Theme.Theme.CurrentTheme;
}
return thisTheme;
}
set
{
if (thisTheme != value)
{
thisTheme = value;
Theme.Theme.LoadTheme(this);
}
}
}
public void ResetTheme()
{
var t = (Theme.IThemeFrmLock)ThisTheme;
this.BackColor = t.BaseFormBackgroundColor;
this.lblTitle.BackColor = t.BaseFormTitleColor;
this.lblTitle.ForeColor = t.BaseFormForeColor;
ucControlBase1.FillColor = t.FrmLock_TxtFillColor;
ucControlBase1.RectColor = t.FrmLock_TxtRectColor;
txtPW.BackColor = t.FrmLock_TxtFillColor;
txtPW.ForeColor = t.FrmLock_TxtForeColor;
tongyong_btnPaiZhaoPath.FillColor = t.FrmLock_btnFillColor;
tongyong_btnPaiZhaoPath.RectColor = t.FrmLock_btnRectColor;
tongyong_btnPaiZhaoPath.ForeColor = t.FrmLock_btnForeColor;
}
以上就是修改程式碼，下面看呼叫
Theme.Theme.CurrentTheme = new Theme.Dark();
效果
&n