WPF自定义控件（五）の用户控件（完结）

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用户控件，WPF中是继承自UserControl的控件，我们可以在里面融合我们的业务逻辑。

示例：（一个厌恶选择的用户控件）

后端：

using iMicClassBase;
using iMicClassBase.BaseControl;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Forms;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;namespace iMicClassUI.HomeToolControls
{
/**
* @控件名：HomeToolBackgroundPanel
* @功能：切换黑板界面背景
* @作者：tjer
* @时间：2017.05.19
* **/ /// <summary>
/// HomeToolBackgroundPanel.xaml 的交互逻辑
/// </summary>
public partial class HomeToolBackgroundPanel : System.Windows.Controls.UserControl
{
#region 委托及事件
/// <summary>
/// 背景改变事件委托
/// </summary>
/// <param name="sender">源</param>
/// <param name="type">类型</param>
/// <param name="ChangeObj">改变对象</param>
public delegate void BackGroundSelectedChangeDelegate(object sender, BBBackGroundType type,object ChangeObj); /// <summary>
/// 背景改变事件
/// </summary>
public BackGroundSelectedChangeDelegate BackGroundSelectedChange = null; /// <summary>
/// 选项卡改变事件
/// </summary>
public static readonly RoutedEvent TabItemChangeEvent = EventManager.RegisterRoutedEvent
("TabItemChange", RoutingStrategy.Bubble, typeof(RoutedEventArgs), typeof(HomeToolBackgroundPanel));
public event RoutedEventHandler TabItemChange
{
add { AddHandler(TabItemChangeEvent, value); }
remove { RemoveHandler(TabItemChangeEvent, value); }
}
#endregion #region 变量
/// <summary>
/// 调用系统颜色框
/// </summary>
private ColorDialog SysColorDia = new ColorDialog();
#endregion #region 属性及依赖属性
/// <summary>
/// 当前选项卡背景类型
/// </summary>
public BBBackGroundType SelectedOption
{
get;
set;
} = BBBackGroundType.ColorType; /// <summary>
/// 当前颜色
/// </summary>
public static readonly DependencyProperty CurrentColorProperty =
DependencyProperty.Register("CurrentColor", typeof(System.Windows.Media.Color), typeof(HomeToolBackgroundPanel), new PropertyMetadata((Color)ColorConverter.ConvertFromString("#FF18311B"), OnCurrentColorChanged));
[Description("当前颜色"), Browsable(false)]
public System.Windows.Media.Color CurrentColor
{
get { return (System.Windows.Media.Color)GetValue (CurrentColorProperty); }
set { SetValue(CurrentColorProperty, value); }
} /// <summary>
/// 当前本地图片背景，从1开始，默认是无效0
/// <summary>
public static readonly DependencyProperty CurrentSysBgIndexProperty =
DependencyProperty.Register("CurrentSysBgIndex", typeof(int), typeof(HomeToolBackgroundPanel), new PropertyMetadata(0, OnCurrentSysBgIndexChanged)); [Description("当前系统图片背景索引"), Browsable(false)]
public int CurrentSysBgIndex
{
get { return (int)GetValue(CurrentSysBgIndexProperty); }
set { SetValue(CurrentSysBgIndexProperty ,value); }
} /// <summary>
/// 当前本地图片路径
/// </summary>
public static readonly DependencyProperty CurrentLocalImageBgURIProperty =
DependencyProperty.Register("CurrentLocalImageBgURI", typeof(string), typeof(HomeToolBackgroundPanel), new PropertyMetadata(string.Empty, OnCurrentLocalImageBgURIChanged));
[Description("当前本地图片路径"), Browsable(false)]
public string CurrentLocalImageBgURI
{
get { return (string)GetValue(CurrentLocalImageBgURIProperty); }
set { SetValue(CurrentLocalImageBgURIProperty, value); }
}
#endregion #region 窗体事件
/// <summary>
/// 构造
/// </summary>
public HomeToolBackgroundPanel()
{
InitializeComponent();
} /// <summary>
/// 初始化，每次显示的时候调用，可以展示当前黑板背景状态
/// </summary>
/// <param name="type">当前黑板背景类型</param>
/// <param name="obj">背景内容对象</param>
public void Init(BBBackGroundType type,object obj)
{
switch (type)
{
case BBBackGroundType.ColorType:
tabPanel.SelectedIndex = 0;
CurrentColor = (System.Windows.Media.Color)obj ;
break;
case BBBackGroundType.ImageType:
tabPanel.SelectedIndex = 1;
CurrentSysBgIndex = (int)obj;
break;
case BBBackGroundType.LocalType:
tabPanel.SelectedIndex = 2;
CurrentLocalImageBgURI = (string)obj;
break;
}
}
#endregion #region 依赖事件
/// <summary>
/// 颜色改变事件
/// </summary>
/// <param name="d">依赖对象</param>
/// <param name="e">事件</param>
private static void OnCurrentColorChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.OldValue == e.NewValue)
{
return;
} if ((Color)e.NewValue== (Color)ColorConverter.ConvertFromString("#FF18311B"))
{
return;
} HomeToolBackgroundPanel control = (HomeToolBackgroundPanel)d;
control.CurrentSysBgIndex = 0;
control.CurrentLocalImageBgURI = string.Empty;
control.BackGroundSelectedChange?.Invoke(control, BBBackGroundType.ColorType,control.CurrentColor);
} /// <summary>
/// 背景索引改变事件
/// </summary>
/// <param name="d">依赖对象</param>
/// <param name="e">事件</param>
private static void OnCurrentSysBgIndexChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.OldValue == e.NewValue)
{
return;
} if ((int)e.NewValue==0)
{
return;
} HomeToolBackgroundPanel control = (HomeToolBackgroundPanel)d;
control.CurrentColor = (Color)ColorConverter.ConvertFromString("#FF18311B");
control.CurrentLocalImageBgURI = string.Empty;
control.BackGroundSelectedChange?.Invoke(control, BBBackGroundType.ImageType, control.CurrentSysBgIndex);
} /// <summary>
/// 本地背景路径改变
/// </summary>
/// <param name="d">依赖对象</param>
/// <param name="e">事件</param>
private static void OnCurrentLocalImageBgURIChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
if (e.OldValue == e.NewValue)
{
return;
} if ((string)e.NewValue == string.Empty)
{
return;
} HomeToolBackgroundPanel control = (HomeToolBackgroundPanel)d;
control.CurrentColor = (Color)ColorConverter.ConvertFromString("#FF18311B");
control.CurrentSysBgIndex = 0;
control.BackGroundSelectedChange?.Invoke(control, BBBackGroundType.LocalType, control.CurrentLocalImageBgURI);
}
#endregion #region 内部操作事件
/// <summary>
/// 选项卡改变事件
/// </summary>
/// <param name="sender">事件源</param>
/// <param name="e">事件</param>
private void TabItem_Select(object sender, RoutedEventArgs e)
{
//选项卡改变，背景类型改变
switch (tabPanel.SelectedIndex)
{
case 0:
SelectedOption = BBBackGroundType.ColorType;
break;
case 1:
SelectedOption = BBBackGroundType.ImageType;
break;
case 2:
SelectedOption = BBBackGroundType.LocalType;
break; }
RoutedEventArgs routedEventArgs = new RoutedEventArgs(TabItemChangeEvent, e.OriginalSource);
RaiseEvent(routedEventArgs);
} /// <summary>
/// 面板颜色值选择
/// </summary>
/// <param name="sender">事件源</param>
/// <param name="e">事件</param>
private void ColorPanel_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
colorPanelCurrent.Color = (sender as ColorPanel).Color;
if ((sender as ColorPanel).Color == (Color)(ColorConverter.ConvertFromString("#FF18311B"))) //保证颜色值是设定色的时候也会触发
{
btnBg1.IsSelected = false;
btnBg2.IsSelected = false;
btnBg3.IsSelected = false;
btnBg4.IsSelected = false;
CurrentSysBgIndex = 0;
CurrentLocalImageBgURI = string.Empty;
BackGroundSelectedChange?.Invoke(this, BBBackGroundType.ColorType, CurrentColor);
}
} /// <summary>
/// 点击更多颜色
/// </summary>
/// <param name="sender">事件源</param>
/// <param name="e">事件</param>
private void btnMoreColor_Click(object sender, RoutedEventArgs e)
{
DialogResult result = SysColorDia.ShowDialog();
if (result == System.Windows.Forms.DialogResult.OK)
{
colorPanelCurrent.Color = ColorConverterHelp.ConvertToMediaColor(SysColorDia.Color);
}
} /// <summary>
/// 本地背景选择
/// </summary>
/// <param name="sender">事件源</param>
/// <param name="e">事件</param>
private void SelectButton_ButtonSelected(object sender, EventArgs e)
{
int index = Convert.ToInt32((sender as SelectButton).Tag); switch (index)
{
case 1:
btnBg2.IsSelected = false;
btnBg3.IsSelected = false;
btnBg4.IsSelected = false;
CurrentSysBgIndex = 1;
break;
case 2:
btnBg1.IsSelected = false;
btnBg3.IsSelected = false;
btnBg4.IsSelected = false;
CurrentSysBgIndex = 2;
break;
case 3:
btnBg1.IsSelected = false;
btnBg2.IsSelected = false;
btnBg4.IsSelected = false;
CurrentSysBgIndex = 3;
break;
case 4:
btnBg1.IsSelected = false;
btnBg2.IsSelected = false;
btnBg3.IsSelected = false;
CurrentSysBgIndex = 4;
break;
} } /// <summary>
/// 点击选择本地图片
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnAddLoaclImage_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog localBg = new OpenFileDialog();
localBg.DefaultExt = ".png";
localBg.Filter = "(背景)|*.png";
if (localBg.ShowDialog() == DialogResult.OK)
{
btnBg1.IsSelected = false;
btnBg2.IsSelected = false;
btnBg3.IsSelected = false;
btnBg4.IsSelected = false;
CurrentSysBgIndex = 0;
CurrentLocalImageBgURI = System.IO.Path.GetFullPath(localBg.FileName);
}
} #endregion
}
}