ImageBounds Property (original) (raw)
Summary
Physical position and size of the image in the viewer (single item mode).
Syntax
Property Value
The physical position and size of the image in pixels (single item mode).
Example
using Leadtools;
using Leadtools.Controls;
using Leadtools.Codecs;
using Leadtools.Drawing;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
public void GetItemViewBounds_Example()
{
// Clear all the images already the viewer
_imageViewer.Items.Clear();
// Use vertical view layout
_imageViewer.ViewLayout = new ImageViewerVerticalViewLayout();
// Make sure the item size is larger than the image size (thumbnails mode)
_imageViewer.ItemSize = LeadSize.Create(200, 200);
_imageViewer.ItemPadding = new Padding(8, 8, 8, 20);
_imageViewer.ImageBorderThickness = 1;
// Add 4 items to the viewer
using (var codecs = new RasterCodecs())
{
for (var page = 1; page <= 4; page++)
{
var item = new ImageViewerItem();
var fileName = Path.Combine(LEAD_VARS.ImagesDir, string.Format("ocr{0}.tif", page));
// Create a thumbnail from the image
using (var image = codecs.Load(fileName, page))
{
item.Image = image.CreateThumbnail(180, 180, 24, RasterViewPerspective.TopLeft, RasterSizeFlags.Resample);
}
item.Text = string.Format("Item {0}", page - 1);
_imageViewer.Items.Add(item);
}
}
// Hook to the viewer mouse click event
_imageViewer.MouseClick += (sender, e) =>
{
// Loop through each item, get the view bounds of the image (the physical location and size on the viewer surface of the item)
// and perform hit-testing
foreach (var item in _imageViewer.Items)
{
// Pass part as image and clipped as true, we are only interested on what we are seeing
var bounds = _imageViewer.GetItemViewBounds(item, ImageViewerItemPart.Image, true);
// Hit-test. GetItemViewBounds returns the value in the control coordinates, same as the mouse click
if (bounds.Contains(e.X, e.Y))
{
Debug.WriteLine("Clicked the image of item at index " + _imageViewer.Items.IndexOf(item));
return;
}
}
};
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}