//Try to load the images from the DB file.
Boolean LoadImagesFromDB(Template template)
{
if (this.dbData.CreateDB(template))
{
// When we are loading from an existing data file, ensure that the template in the template db matches stored in the data db
List<string> errors = CheckCodesVsImageData();
if (errors.Count > 0)
{
DlgTemplatesDontMatch dlg = new DlgTemplatesDontMatch(errors);
dlg.Owner = this;
bool? result = dlg.ShowDialog();
if (result == true)
{
this.state.immediateExit = true;
Application.Current.Shutdown();
return true;
}
else
{
this.dbData.templateTable = dbData.CreateDataTableFromDatabaseTable(Constants.TABLETEMPLATE);
}
}
// We generate the data user interface controls from the template description after the database has been created from the template
myControls.GenerateControls(dbData);
MenuItemControlsInSeparateWindow_Click(this.MenuItemControlsInSeparateWindow, null); //this.ControlsInMainWindow();
this.dbData.CreateLookupTables();
this.dbData.GetImagesAll();
return true;
}
return false;
}
// Load the code template and then the images from either the database (if it exists) or the actual images (if it doesn't exist)
private void loadImagesFromSources()
{
// First, select a template file which should reside with the image set, otherwise abort loading (which means the user can try again later)
// Also pass it the last image folder / template file viewed, which will be shown in the file dialog
string tpath = persist.ReadLastImageFolderPath(); // the last path opened by the user is stored in the registry
string filename = persist.ReadLastImageTemplateName(); // the template filname opened by the user is stored in the registry
tpath = Utilities.GetTemplateFileFromUser(tpath, filename); // Returns the path and the file name
if (tpath == null) return;
// Parse the returned file path to get just the filename and the path to the folder.
filename = System.IO.Path.GetFileName(tpath);
if (filename.Equals ("")) filename = Constants.DBTEMPLATEFILENAME;
persist.WriteLastImageTemplateName(filename); // We should really do this on exit as well, but I didn't feel like storing it
tpath = System.IO.Path.GetDirectoryName(tpath);
if ("" == tpath || null == tpath) return;
this.FolderPath = tpath; // We keep the path in two places for convenience of referencing them
this.dbData.FolderPath = tpath;
// Create the template to the Timelapse Template database
this.template = new Template();
if (!template.Open(this.FolderPath, filename)) return;
// We now have the template file. Load the TemplateTable from that file, which makes it data accessible through its table
template.LoadTemplateTable();
// Find the .ddb file in the image set folder. If a single .ddb file is found, use that one
// If there are multiple .ddb files, ask the use to choose one and use that
// However, if the user cancels that choice, just abort.
// If there are no .ddb files, then just create the standard one.
switch (this.dbData.FindFile())
{
case 0: // An existing .ddb file is available
if (this.LoadImagesFromDB(template) == true)
{
if (state.immediateExit) return;
LoadComplete(false);
}
break;
case 1: // User cancelled the process of choosing between .ddb files
if (state.immediateExit) return;
break;
case 2: // There are no existing .ddb files
default:
if (LoadDByScanningImageFolder() == false)
{
DlgMessageBox dlgMB = new DlgMessageBox();
dlgMB.MessageTitle = "No Images Found in the Image Set Folder";
dlgMB.MessageProblem = "There doesn't seem to be any JPG images in your chosen image folder:";
dlgMB.MessageProblem += Environment.NewLine + "\u2022 " + this.FolderPath + Environment.NewLine;
dlgMB.MessageReason = "\u2022 The folder has no JPG files in it (image files ending in '.jpg'), or" + Environment.NewLine;
dlgMB.MessageReason += "\u2022 You may has selected the wrong folder, i.e., a folder other than the one containing the images.";
dlgMB.MessageSolution = "\u2022 Check that the chosen folder actually contains JPG images (i.e., a 'jpg' suffix), or" + Environment.NewLine;
dlgMB.MessageSolution += "\u2022 Choose another folder.";
dlgMB.IconType = MessageBoxImage.Error;
dlgMB.ButtonType = MessageBoxButton.OK;
dlgMB.ShowDialog();
return;
}
break;
}
state.isContentChanged = false; // We've altered some content
// For persistance: set a flag if We've opened the same image folder we worked with in the last session.
// If its different, saved the new folder path
this.ImageFolderReopened = (tpath == this.FolderPath) ? true : false;
}
/// <summary>
/// Create a database file (if needed) and connect to it. Also keeps a local copy of the template
/// </summary>
/// <returns></returns>
public bool CreateDB(Template template)
{
// Create the DB
try
{
this.DB = new SQLiteWrapper(this.FilePath);
this.templateTable = template.templateTable;
return true;
}
catch
{
return false;
}
}