C# ImageListView控件下载(源代码)


C# ImageListView控件下载(源代码)

ImageListView

By Ozgur Ozcitak

A .NET ListView like control for displaying image files with asynchronously loaded thumbnails.

C#-ImageListView控件下载(源代码)

贴图图片

Introduction

ImageListView is a .NET control for displaying a list of image files. It looks and operates similar to the standard ListView control. Image thumbnails are loaded asynchronously with a separate background thread. The look of the control can be completely customized using custom renderers.


介绍

ImageListView控件是用于显示图片列表的.Net控件。从外观及操作方式上看类似ListView控件。它使用多线程异步加载图片功能,

控件的外观也完全可以定制。

 

Background

This project actually started as an owner-drawn ListView. However, this first version required way too many hacks. Determining the first/last visible items especially proved to be a challenge. Halfway through, I decided to roll my own control. Thus was born the ImageListView.

背景

该控件实际上是从重画ListView控件开始, 但是,第一个版本需要太多的方式去尝试, 特别是确定第一个或最后一个可见的项目被证明是一个挑战。由于这样或那样的问题,我决定推出自己的控件,于是诞生了ImageListView。

 

Using the Code

To use the control, add the ImageListView to your control toolbox and drag it on the form. You can then customize the appearance of the control by changing the view mode (either Thumbnails or Details), thumbnail size, column headers, etc. If you need to include the control in your own control library, drag the source file (and optionally the toolbar icon) to the Solution Explorer, and rename the namespace if you like.


如何使用代码

在工具栏上添加ImageListView控件, 然后拖放控件到窗体上。可以通过改变视图模式定制控件的显示样式(1.略缩图 2.详细内容)
如:略缩图尺寸,列标题等等。。。 如你想将ImageListView加入到自己的控件库, 拖动源代码文件(包括用于工具栏上显示的图标)
到解决方案内。重新命名名字空间就可以了.

 

Custom Rendering

The ImageListViewRenderer class is responsible for drawing the control. This is a public class with virtual functions that can be overridden by derived classes. Derived classes can modify the display size of items and column headers and draw any or all parts of the control.


自定义绘制控件


ImageListViewRenderer 类负责绘制控件,他是一个有虚方法的公共类,派生类可以修改显示大小和列标题或者重绘控件的任何部分。




贴图图片

Here is the renderer that produces this appearance:

public class DemoRenderer : ImageListView.ImageListViewRenderer
{
   // Returns item size for the given view mode.
   public override Size MeasureItem(View view)
   {
      if (view == View.Thumbnails)
      {
         Size itemPadding = new Size(4, 4);
         Size sz = ImageListView.ThumbnailSize + ImageListView.ItemMargin +
         itemPadding + itemPadding;
         return sz;
      }
      else
      return base.MeasureItem(view);
   }
   // Draws the background of the control.
   public override void DrawBackground(Graphics g, Rectangle bounds)
   {
      if (ImageListView.View == View.Thumbnails)
      g.Clear(Color.FromArgb(32, 32, 32));
      else
      base.DrawBackground(g, bounds);
   }
   // Draws the specified item on the given graphics.
   public override void DrawItem(Graphics g,
   ImageListViewItem item, ItemState state)
   {
      if (ImageListView.View == View.Thumbnails)
      {
         Rectangle bounds = item.Bounds;
         // Black background
         using (Brush b = new SolidBrush(Color.Black))
         {
            g.FillRoundedRectangle(b, bounds, 4);
         }
         // Background of selected items
         if ((state & ItemState.Selected) == ItemState.Selected)
         {
            using (Brush b = new SolidBrush(Color.FromArgb(128,
            SystemColors.Highlight)))
            {
               g.FillRoundedRectangle(b, bounds, 4);
            }
         }
         // Gradient background
         using (Brush b = new LinearGradientBrush(
         item.Bounds,
         Color.Transparent,
         Color.FromArgb(96, SystemColors.Highlight),
         LinearGradientMode.Vertical))
         {
            g.FillRoundedRectangle(b, bounds, 4);
         }
         // Light overlay for hovered items
         if ((state & ItemState.Hovered) == ItemState.Hovered)
         {
            using (Brush b =
            new SolidBrush(Color.FromArgb(32, SystemColors.Highlight)))
            {
               g.FillRoundedRectangle(b, bounds, 4);
            }
         }
         // Border
         using (Pen p = new Pen(SystemColors.Highlight))
         {
            g.DrawRoundedRectangle(p, bounds.X, bounds.Y, bounds.Width - 1,
            bounds.Height - 1, 4);
         }
         // Image
         Image img = item.ThumbnailImage;
         if (img != null)
         {
            int x = bounds.Left + (bounds.Width - img.Width) / 2;
            int y = bounds.Top + (bounds.Height - img.Height) / 2;
            g.DrawImageUnscaled(item.ThumbnailImage, x, y);
            // Image border
            using (Pen p = new Pen(SystemColors.Highlight))
            {
               g.DrawRectangle(p, x, y, img.Width - 1, img.Height - 1);
            }
         }
      }
      else
      base.DrawItem(g, item, state);
   }
   // Draws the selection rectangle.
   public override void DrawSelectionRectangle(Graphics g, Rectangle selection)
   {
      using (Brush b = new HatchBrush(
      HatchStyle.DarkDownwardDiagonal,
      Color.FromArgb(128, Color.Black),
      Color.FromArgb(128, SystemColors.Highlight)))
      {
         g.FillRectangle(b, selection);
      }
      using (Pen p = new Pen(SystemColors.Highlight))
      {
         g.DrawRectangle(p, selection.X, selection.Y,
         selection.Width, selection.Height);
      }
   }
}

 

Once you write your own renderer, you need to assign it to the ImageListView.


imageListView1.SetRenderer(new DemoRenderer());



原文:
http://www.codeproject.com/KB/list/imagelistview.aspx

www.CSFramework.com 翻译



版权声明:本文为开发框架文库发布内容,转载请附上原文出处连接
C/S框架网
上一篇:[原创]超牛Outlook导航导控件(Outlook Navigation Panel)
下一篇:C#实现SQL查询分析器(C# Visual SQL Query Designer)
评论列表

发表评论

评论内容
昵称:
关联文章

C# ImageListView下载(源代码)
ExRichTextEdit 下载
C# Barcode条码使用方法
C#.Net自定义 - GridPopupContainerLookup
C#.Net自定义 - GridPopupContainerEdit
C# 实现完整功能的截图(1)-实现绘图工具栏
使用Scheduler实现生产进度监控程序
ucWindowTitle用户 - 用户界面规范
C#实现DevExpress换肤功能
C#在PictureBox上绘制透明背景文字.
C#.Net用户自定义制作教程
JS日期
C# Winform中如何获取父窗体中的信息
(C#)RichTextBox查找文本演示(功能全)
[原创]C#键盘勾子(Hook),屏蔽键盘活动.(源代码下载)
.NET RichTextBox使用详解
C# Winform动态设置的值及反射技术应用
Winform C/S框架 - FastReport.NET组下载
C#.Net自定义设置图标ToolboxBitmap的用法
C#开发自定义-设置显示工具箱中的图标

热门标签
.NET5 .NET6 .NET7 APP Auth-软件授权注册系统 Axios B/S B/S开发框架 Bug Bug记录 C#加密解密 C#源码 C/S CHATGPT CMS系统 CodeGenerator CSFramework.DB CSFramework.EF CSFrameworkV1学习版 CSFrameworkV2标准版 CSFrameworkV3高级版 CSFrameworkV4企业版 CSFrameworkV5旗舰版 CSFrameworkV6.0 DAL数据访问层 Database datalock DbFramework Demo教学 Demo下载 DevExpress教程 DOM EF框架 Element-UI EntityFramework ERP ES6 Excel FastReport GIT HR IDatabase IIS JavaScript LINQ MES MiniFramework MIS NavBarControl Node.JS NPM OMS ORM PaaS POS Promise API Redis SAP SEO SQL SQLConnector TMS系统 Token令牌 VS2022 VSCode VUE WCF WebApi WebApi NETCore WebApi框架 WEB开发框架 Windows服务 Winform 开发框架 Winform 开发平台 WinFramework Workflow工作流 Workflow流程引擎 版本区别 报表 踩坑日记 操作手册 代码生成器 迭代开发记录 基础资料窗体 架构设计 角色权限 开发sce 开发技巧 开发教程 开发框架 开发平台 开发指南 客户案例 快速搭站系统 快速开发平台 秘钥 密钥 权限设计 软件报价 软件测试报告 软件简介 软件开发框架 软件开发平台 软件开发文档 软件体系架构 软件下载 软著证书 三层架构 设计模式 生成代码 实用小技巧 收钱音箱 数据锁 数据同步 微信小程序 未解决问题 文档下载 喜鹊ERP 喜鹊软件 系统对接 详细设计说明书 行政区域数据库 需求分析 疑难杂症 蝇量级框架 蝇量框架 用户管理 用户开发手册 用户控件 在线支付 纸箱ERP 智能语音收款机 自定义窗体 自定义组件 自动升级程序