ThumbnailsContainer Property (original) (raw)
Summary
Parent container of the thumbnails part of the document viewer
Syntax
public Control ThumbnailsContainer { get; set; } public:
property System::Windows::Forms::Control^ ThumbnailsContainer
{
System::Windows::Forms::Control^ get()
void set(System::Windows::Forms::Control^ value)
}
Property Value
The parent container of the thumbnails part of the document viewer.
Example
using Leadtools;
using Leadtools.Controls;
using Leadtools.Document;
using Leadtools.Document.Viewer;
using Leadtools.Codecs;
using Leadtools.Caching;
using Leadtools.Annotations.Engine;
using Leadtools.Ocr;
public void DocumentViewer_Example()
{
// New Form to be used as our application
var form = new MyForm();
form.ShowDialog();
}
class MyForm : Form
{
public MyForm()
{
this.Size = new Size(800, 800);
this.Text = "LEADTOOLS Document Viewer Example";
}
protected override void OnLoad(EventArgs e)
{
if (!DesignMode)
{
// Init OCR. This is optional and not required for the PDF document we are loading.
// But if image documents are loaded and text functionality is used, then we need OCR
_ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.LEAD);
_ocrEngine.Startup(null, null, null, @"C:\LEADTOOLS22\Bin\Common\OcrLEADRuntime");
Init();
}
base.OnLoad(e);
}
// Our document viewer instance
private DocumentViewer _documentViewer;
// Optional OCR engine to use in the example
private IOcrEngine _ocrEngine;
private void Init()
{
// Initialize the user interface
InitUI();
// Init the cache. This is optional, but it can speed up viewing of large documents
// if not needed, remove this section
DocumentFactory.Cache = new FileCache();
// Init the document viewer, pass along the panels
var createOptions = new DocumentViewerCreateOptions
{
// The middle panel for the view
ViewContainer = this.Controls.Find("middlePanel", false)[0],
// The left panel for the thumbnails
ThumbnailsContainer = this.Controls.Find("leftPanel", false)[0],
// The right panel is for bookmarks
BookmarksContainer = this.Controls.Find("rightPanel", false)[0],
// Not using annotations for now
UseAnnotations = false
};
// Create the document viewer
_documentViewer = DocumentViewerFactory.CreateDocumentViewer(createOptions);
// We prefer SVG viewing
_documentViewer.View.PreferredItemType = DocumentViewerItemType.Svg;
// Load a document
var fileName = @"C:\LEADTOOLS22\Resources\Images\Leadtools.pdf";
var document = DocumentFactory.LoadFromFile(
fileName,
new LoadDocumentOptions { UseCache = DocumentFactory.Cache != null });
_documentViewer.Operation += (sender, e) =>
{
if (e.Operation == DocumentViewerOperation.LoadingBookmarks)
{
// Disable the bookmarks when we are loading, enable when we are done
var rightPanel = this.Controls.Find("rightPanel", true)[0];
if (rightPanel.InvokeRequired)
{
rightPanel.Invoke((MethodInvoker)delegate { rightPanel.Enabled = e.IsPostOperation; });
}
else
{
rightPanel.Enabled = e.IsPostOperation;
}
}
};
// If we have an OCR engine, use it
document.Text.OcrEngine = _ocrEngine;
// Set it in the viewer
_documentViewer.SetDocument(document);
// Run pan/zoom
var interactiveComboBox = this.Controls.Find("interactiveComboBox", true)[0] as ComboBox;
interactiveComboBox.SelectedItem = DocumentViewerCommands.InteractivePanZoom;
}
private void InitUI()
{
// Add a panel on the left for the document viewer thumbnails part
var leftPanel = new Panel();
leftPanel.Name = "leftPanel";
leftPanel.Width = 200;
leftPanel.Dock = DockStyle.Left;
leftPanel.BackColor = Color.Gray;
leftPanel.BorderStyle = BorderStyle.FixedSingle;
this.Controls.Add(leftPanel);
// Add a panel to the right, this will work for the bookmarks or annotations part
var rightPanel = new Panel();
rightPanel.Name = "rightPanel";
rightPanel.Width = 200;
rightPanel.Dock = DockStyle.Right;
rightPanel.BackColor = Color.LightBlue;
rightPanel.BorderStyle = BorderStyle.FixedSingle;
this.Controls.Add(rightPanel);
// Add a panel to fill the rest, for the document viewer
var middlePanel = new Panel();
middlePanel.Name = "middlePanel";
middlePanel.BackColor = Color.DarkGray;
middlePanel.BorderStyle = BorderStyle.None;
middlePanel.Dock = DockStyle.Fill;
this.Controls.Add(middlePanel);
// Add a top panel to host our application controls
var topPanel = new Panel();
topPanel.Name = "topPanel";
topPanel.Height = 100;
topPanel.Dock = DockStyle.Top;
topPanel.BorderStyle = BorderStyle.FixedSingle;
this.Controls.Add(topPanel);
middlePanel.BringToFront();
// Add buttons for the UI
// Combo box for interactive modes
var interactiveComboBox = new ComboBox();
interactiveComboBox.Name = "interactiveComboBox";
interactiveComboBox.DropDownStyle = ComboBoxStyle.DropDownList;
// The command names for the items so we can just run them
interactiveComboBox.Items.Add(DocumentViewerCommands.InteractivePanZoom);
interactiveComboBox.Items.Add(DocumentViewerCommands.InteractiveSelectText);
interactiveComboBox.SelectedIndexChanged += (sender, e) =>
{
var commandName = interactiveComboBox.SelectedItem as string;
_documentViewer.Commands.Run(commandName);
};
topPanel.Controls.Add(interactiveComboBox);
// Generic label for information used by the examples
var infoLabel = new Label();
infoLabel.Name = "infoLabel";
infoLabel.Text = "Info...";
infoLabel.AutoSize = false;
infoLabel.Width = 400;
infoLabel.Left = interactiveComboBox.Right + 20;
topPanel.Controls.Add(infoLabel);
var exampleButton = new Button();
exampleButton.Top = interactiveComboBox.Bottom + 2;
exampleButton.Name = "exampleButton";
exampleButton.Text = "&Example";
exampleButton.Click += (sender, e) => Example(exampleButton);
topPanel.Controls.Add(exampleButton);
}
private void Example(Button exampleButton)
{
// Add the example code here
Console.WriteLine(this + " Ready");
}
}