WPF下ImageButton的实现

在处理美工的这种图的时候，要切成一张张的会很麻烦。参考 http://blog.csdn.net/qian_f/article/details/28886021自定义了一个类ImageButton。

ImageButton.cs

using System;
using System.Windows;
using System.Windows.Controls;

namespace WPFTEST
{
    class ImageButton : Button
    {
        private string m_imagepath;

        public string ImgPath {
            get { return m_imagepath; }
            set { m_imagepath = value; }
        }
    }
}

ImageButton的模板和使用：

<Window x:Class="WPFTEST.ImageBtnWin"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:WPFTEST"
        Title="ImageBtnWin" Height="300" Width="300">
    <Window.Resources>
        <ControlTemplate x:Key="ImageButtonTemplate" TargetType="{x:Type local:ImageButton}">
            <Rectangle x:Name="bgrect">
                <Rectangle.Fill>
                    <ImageBrush ImageSource="{Binding ImgPath, RelativeSource={RelativeSource TemplatedParent}}" Stretch="UniformToFill" Viewbox="0,0,0.25,1" />
                </Rectangle.Fill>
            </Rectangle>
            <ControlTemplate.Triggers>
                <Trigger Property="IsMouseOver" Value="True">
                    <Setter TargetName="bgrect" Property="Fill">
                        <Setter.Value>
                            <ImageBrush ImageSource="{Binding ImgPath, RelativeSource={RelativeSource TemplatedParent}}" Stretch="UniformToFill" Viewbox="0.25,0,0.25,1" />
                        </Setter.Value>
                    </Setter>
                </Trigger>
                <Trigger Property="IsPressed" Value="True">
                    <Setter TargetName="bgrect" Property="Fill">
                        <Setter.Value>
                            <ImageBrush ImageSource="{Binding ImgPath, RelativeSource={RelativeSource TemplatedParent}}" Stretch="UniformToFill" Viewbox="0.5,0,0.25,1" />
                        </Setter.Value>
                    </Setter>
                </Trigger>
                <Trigger Property="IsEnabled" Value="False">
                    <Setter TargetName="bgrect" Property="Fill">
                        <Setter.Value>
                            <ImageBrush ImageSource="{Binding ImgPath, RelativeSource={RelativeSource TemplatedParent}}" Stretch="UniformToFill" Viewbox="0.75,0,0.25,1" />
                        </Setter.Value>
                    </Setter>
                </Trigger>
            </ControlTemplate.Triggers>
        </ControlTemplate>
    </Window.Resources>
    <Grid>
        <local:ImageButton Width="132"  Height="43" ImgPath="/Images/拍摄.png" Template="{StaticResource ImageButtonTemplate}" />
    </Grid>
</Window>

运行截图：