private async Task ReplyImagemapAsync(string replyToken, string messageId, string blobDirectoryName)
{
var imageStream = await MessagingClient.GetContentStreamAsync(messageId);
var image = System.Drawing.Image.FromStream(imageStream);
using (var g = Graphics.FromImage(image))
{
g.DrawLine(Pens.Red, image.Width / 2, 0, image.Width / 2, image.Height);
g.DrawLine(Pens.Red, 0, image.Height / 2, image.Width, image.Height / 2);
}
var uri = await UploadImageAsync(1040);
await UploadImageAsync(700);
await UploadImageAsync(460);
await UploadImageAsync(300);
await UploadImageAsync(240);
var imageSize = new ImagemapSize(1024, (int)(1040 * (double)image.Height / image.Width));
var areaWidth = imageSize.Width / 2;
var areaHeight = imageSize.Height / 2;
Video video = null;
var videoUrl = BlobStorage.ListBlobUri(blobDirectoryName).FirstOrDefault(x => x.ToString().EndsWith("video.mp4"));
if (videoUrl != null)
{
video = new Video(videoUrl.ToString(), videoUrl.ToString().Replace("video.mp4", "300"),
new ImagemapArea(areaWidth / 2, areaHeight / 2, areaWidth, areaHeight),
new ExternalLink("https://google.com", "google"));
}
var imagemapMessage = new ImagemapMessage(uri.ToString().Replace("/1040", ""),
"Sample Imagemap",
imageSize,
new IImagemapAction[] {
new MessageImagemapAction(new ImagemapArea(0, 0, areaWidth, areaHeight), "Area Top-Left"),
new MessageImagemapAction(new ImagemapArea(areaWidth, 0, areaWidth, areaHeight), "Area Top-Right"),
new MessageImagemapAction(new ImagemapArea(0, areaHeight, areaWidth, areaHeight), "Area Bottom-Left"),
new MessageImagemapAction(new ImagemapArea(areaWidth, areaHeight, areaWidth, areaHeight), "Area Bottom-Right"),
},
video: video);
await MessagingClient.ReplyMessageAsync(replyToken, new[] { imagemapMessage });
async Task <Uri> UploadImageAsync(int baseSize)
{
var img = image.GetThumbnailImage(baseSize, image.Height * baseSize / image.Width, () => false, IntPtr.Zero);
return(await BlobStorage.UploadImageAsync(img, blobDirectoryName, baseSize.ToString()));
}
}
private async Task ReplyImageCarouselAsync(string replyToken, string blobDirectoryName)
{
var columns = BlobStorage.ListBlobUri(blobDirectoryName)
.Select(uri =>
new ImageCarouselColumn(uri.ToString(),
new MessageTemplateAction(uri.Segments.Last(), $"I selected image {uri.Segments.Last()}!"))).ToList();
if (columns.Count == 0)
{
await MessagingClient.ReplyMessageAsync(replyToken, "Upload image for \"Carousel Message\".");
return;
}
var template = new ImageCarouselTemplate(columns);
await MessagingClient.ReplyMessageAsync(replyToken, new[] { new TemplateMessage("imageCarousel", template) });
}
private async Task UploadImageAsync(string replyToken, string messageId, string blobDirectoryName)
{
var imageStream = await MessagingClient.GetContentStreamAsync(messageId);
var image = System.Drawing.Image.FromStream(imageStream);
var imageCount = BlobStorage.ListBlobUri(blobDirectoryName).Count();
if (imageCount == 5)
{
await BlobStorage.DeleteDirectoryAsync(blobDirectoryName);
imageCount = 0;
}
await BlobStorage.UploadImageAsync(image, blobDirectoryName, (imageCount + 1) + ".jpeg");
await MessagingClient.ReplyMessageAsync(replyToken, $"Image uploaded ({imageCount + 1}).");
}
protected override async Task OnMessageAsync(MessageEvent ev)
{
var msg = ev.Message as TextEventMessage;
if (msg == null)
{
return;
}
switch (msg.Text)
{
case "Rectangle-Cover":
await ReplyButtonsTemplateMessageAsync(ImageAspectRatioType.Rectangle, ImageSizeType.Cover);
break;
case "Square-Contain":
await ReplyButtonsTemplateMessageAsync(ImageAspectRatioType.Square, ImageSizeType.Contain);
break;
case "Square-Cover":
await ReplyButtonsTemplateMessageAsync(ImageAspectRatioType.Square, ImageSizeType.Cover);
break;
case "Rectangle-Contein":
default:
await ReplyButtonsTemplateMessageAsync(ImageAspectRatioType.Rectangle, ImageSizeType.Contain);
break;
}
async Task ReplyButtonsTemplateMessageAsync(ImageAspectRatioType imageAspectRatio, ImageSizeType imageSize)
{
var imageUri = BlobStorage.ListBlobUri(blobDirectoryName).FirstOrDefault(uri => uri.ToString().EndsWith(imageName));
if (imageUri == null)
{
imageUri = await BlobStorage.UploadImageAsync(Properties.Resources.sample_image, blobDirectoryName, imageName);
}
var actions = new[]
{
new MessageTemplateAction("Rectangle-Contain", "Rectangle-Contain"),
new MessageTemplateAction("Rectangle-Cover", "Rectangle-Cover"),
new MessageTemplateAction("Square-Contain", "Square-Contain"),
new MessageTemplateAction("Square-Cover", "Square-Cover")
};
var templateMessage = new TemplateMessage("ButtonsTemplate",
new ButtonsTemplate(
imageAspectRatio.ToString() + "-" + imageSize.ToString(),
imageUri.ToString(),
"Test of thumbnail image settings",
actions,
imageAspectRatio,
imageSize,
imageBackgroundColor: "#FF0000"));
await MessagingClient.ReplyMessageAsync(ev.ReplyToken, new[] { templateMessage });
}
}