FullScreenButton.xaml_1118

最新推荐文章于 2023-05-13 17:20:34 发布

hhucxyb

最新推荐文章于 2023-05-13 17:20:34 发布

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CC 4.0 BY-SA版权

文章标签： object 浏览器 class

本文链接：https://blog.youkuaiyun.com/hhucxyb/article/details/6989198

本文详细介绍了如何在WPF应用中实现全屏切换功能，并结合实例展示了全屏状态下的布局调整机制，包括窗口尺寸适应、滚动条自适应以及不同屏幕尺寸的显示效果优化。

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Interop;//为什么要引入这个命名空间呢？Pay Attention to it.

namespace ComputerDropDragControl
{
    public partial class FullScreenButton : UserControl
    {
        bool expand = false;
        public FullScreenButton(UIElement uc)
        {
            InitializeComponent();

BackElement = uc;

Application.Current.Host.Content.FullScreenChanged += new EventHandler(Content_FullScreenChanged);
}

#region <<控件事件>>

#region <<全屏相关事件>>

        private void btnFullScreen_Click(object sender, RoutedEventArgs e)
        {
            FullScreen();
        }

        private void FullScreen()
        {
            Content contentObject = Application.Current.Host.Content;

contentObject.IsFullScreen = !contentObject.IsFullScreen;
}

        private void Content_FullScreenChanged(Object sender, EventArgs e)
        {
            Content contentObject = Application.Current.Host.Content;
            if (contentObject.IsFullScreen)
            {
                Content_Resized(sender, e, true);
                btnFullScreen.Background = new SolidColorBrush(Colors.Orange);
                btnFullScreen.Content = "退出全屏";
            }
            else
            {
                Content_Resized(sender, e, false);
                btnFullScreen.ClearValue(BackgroundProperty);
                btnFullScreen.Content = "全屏";
            }
        }

        void Content_Resized(object sender, EventArgs e, bool fullScreen)
        {
            //double currentWidth = Application.Current.Host.Content.ActualWidth;
            double currentHeight = Application.Current.Host.Content.ActualHeight;
            //uniformScaleAmount = Math.Min((currentWidth / width), (currentHeight / height));
            //stackFather.Width = stackFather.ActualWidth * uniformScaleAmount;
            //stackFather.Height = stackFather.ActualHeight * uniformScaleAmount;
            //RootLayoutScaleTransform.ScaleX = uniformScaleAmount;
            //RootLayoutScaleTransform.ScaleY = uniformScaleAmount;
            //RootLayoutScaleTransformOne.ScaleX = uniformScaleAmount;
            //RootLayoutScaleTransformOne.ScaleY = uniformScaleAmount;
            ScrollViewer scrollOne = (ScrollViewer)BackElement;
            if (fullScreen)
            {
                scrollOne.Width = Application.Current.Host.Content.ActualWidth;
                scrollOne.Height = Application.Current.Host.Content.ActualHeight;
                //this.scrollOne.Height = 700;
            }
            else
            {
                //设置“最外层滚动条”信息
                double browseWidth = Application.Current.Host.Content.ActualWidth;//SilverLight控件所在浏览器确定的宽度
                double browseHeight = Application.Current.Host.Content.ActualHeight;
                scrollOne.Width = browseWidth - 400;
                scrollOne.Height = browseHeight - 200;
            }