picturefill

C# 在PPT中绘制形状（shape）

由 爷，独闯天下 提交于 2020-12-03 02:33:35
概述 本篇文章将介绍C# 在PPT幻灯片中操作形状（shape）的方法。这里主要涉及常规形状，如箭头、矩形、圆形、三角形、多边形、不规则形状等。下面的示例中，可以通过绘制形状，并设置相应格式等。示例包含以下要点： 绘制形状 用图片填充形状 在形状中添加文字 设置形状单色、渐变色填充 设置形状阴影效果 组合多个形状为一个 设置形状光边效果 将形状保存为图片 工具 Spire.Presentation for .NET 下载安装后，注意在程序中添加引用Spire.Presentation.dll到程序，dll文件可在安装路径下的Bin文件夹中获取。 示例代码（供参考） 【示例1】绘制形状 步骤1：新建一个幻灯片 // 新建一个幻灯片文档，并指定幻灯片大小 Presentation ppt = new Presentation(); ppt.SlideSize.Type = SlideSizeType.Screen16x9; 步骤2：获取第一张幻灯片 ISlide slide = ppt.Slides[ 0 ]; 步骤3：添加一个云朵形状，并填充渐变色，绘入文字 // 添加一个云朵形状，并填充渐变颜色 IAutoShape shape1 = slide.Shapes.AppendShape(ShapeType.CalloutCloud, new RectangleF( 160 , 50

【笔记】《Bootstrap实战》——附录B 实现响应式图片

由 ⅰ亾dé卋堺 提交于 2020-04-15 13:59:17
【推荐阅读】微服务还能火多久？>>> 文章目录 选择方案 准备响应式图片 使用JS 选择方案 Choosing A Responsive Image Solution — Smashing Magazine 选择Scott Jehl的Picturefill技术 picturefill | BootCDN - Bootstrap 中文网开源项目免费 CDN 加速服务 响应式图片填充工具picturefill-CSDN博客 scottjehl/picturefill 准备响应式图片 手机 平板 电脑 使用JS 下载 https://cdn.bootcss.com/picturefill/3.0.3/picturefill.js https://cdn.bootcss.com/picturefill/3.0.3/picturefill.min.js 复制到项目文件夹 找到如下部分 <!-- Wrapper for slides --> <div class="carousel-inner"> <div class="item active"> <img src="img/okwu.jpg" alt="OKWU.edu Homepage"> </div> <div class="item"> <img src="img/okwu-athletics.jpg" alt="OKWU

Picturefill and lazyloading with lazysizes

由 廉价感情. 提交于 2020-01-01 07:04:03
问题 I'm trying to get lazyloading with lazysizes and picturefill to work. The lazyloading itself works if I just use a basic image: <img class=lazyload data-srcset="http://placehold.it/301x301"> If I check the network tab in chrome, I can see that the image was loaded after the red line, so everything is fine: Now I added a <picture> element with my responsive images and try to load that also lazy: <picture> <!--[if IE 9]><video style="display: none;"><![endif]--> <source srcset="http://placehold

Picturefill and lazyloading with lazysizes

由 南楼画角 提交于 2020-01-01 07:03:26
问题 I'm trying to get lazyloading with lazysizes and picturefill to work. The lazyloading itself works if I just use a basic image: <img class=lazyload data-srcset="http://placehold.it/301x301"> If I check the network tab in chrome, I can see that the image was loaded after the red line, so everything is fine: Now I added a <picture> element with my responsive images and try to load that also lazy: <picture> <!--[if IE 9]><video style="display: none;"><![endif]--> <source srcset="http://placehold

When using picture, source and srcset how check which src was loaded? (img.src is empty)

由 你说的曾经没有我的故事 提交于 2019-12-20 20:42:14
问题 I'm using the picture element with source 's to choose which image to load. And while I can add a load listener, I cannot figure out which image was loaded as the img tag's src attribute and property are both empty, even when loaded! <picture> <source srcset="images/test1.png" media="(min-width: 64em)"> <source srcset="images/test2.png" media="(max-width: 63.99em)"> <!-- This will alert an empty string "" --> <img srcset="images/test.png" alt="" onload="alert( this.src );"> </picture> How do

Is there a way to combine the lazyload js library with Picturefill?

由 给你一囗甜甜゛ 提交于 2019-12-05 05:29:22
问题 I'm wondering how you would incorporate lazyload.js with Picturefill, when lazyload's image syntax requires the img tag along with data-original, and Picturefill's syntax doesn't have a spot for those. For example, this is my markup for an image using Picturefill: <span data-picture data-alt="Operating room 2 stands vacant in Dr. Tariq Mahmood's closed Renaissance Hospital in Terrell, Texas."> <span data-src="img/main1_small.jpg"></span> <span data-src="img/main1_small_x2.jpg" data-media="

Picturefill and lazyloading with lazysizes

由 与世无争的帅哥 提交于 2019-12-03 17:09:58
I'm trying to get lazyloading with lazysizes and picturefill to work. The lazyloading itself works if I just use a basic image: <img class=lazyload data-srcset="http://placehold.it/301x301"> If I check the network tab in chrome, I can see that the image was loaded after the red line, so everything is fine: Now I added a <picture> element with my responsive images and try to load that also lazy: <picture> <!--[if IE 9]><video style="display: none;"><![endif]--> <source srcset="http://placehold.it/1370x301 1x, http://placehold.it/2055x450 2x" media="(min-width: 1024px)" /> <source srcset="http:/

Detect “image corrupt or truncated” in Firefox

由 て烟熏妆下的殇ゞ 提交于 2019-11-30 13:46:57
问题 (Pre-emptive strike: If you're tempted to mark this as a duplicate, note that other questions seem to ask "why am I getting this error?" I know why I'm getting this error; I want to know how I can detect the error in my JavaScript code. It only appears in the Firebug console and, of course, is obvious to the user when the image is loaded.) I am using picturefill for responsive images. I have a callback that is fired for the load event on the images. So the callback runs every time someone

Detect “image corrupt or truncated” in Firefox

由 |▌冷眼眸甩不掉的悲伤 提交于 2019-11-30 08:43:53
(Pre-emptive strike: If you're tempted to mark this as a duplicate, note that other questions seem to ask "why am I getting this error?" I know why I'm getting this error; I want to know how I can detect the error in my JavaScript code. It only appears in the Firebug console and, of course, is obvious to the user when the image is loaded.) I am using picturefill for responsive images. I have a callback that is fired for the load event on the images. So the callback runs every time someone resizes the browser window such that a different image is loaded via picturefill. Inside the callback, I'm
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