private void CreateTopic_CanExecute(Object sender, CanExecuteRoutedEventArgs e)
{
if (HelpFunctions.StringIsBlank(GivenTitleTextBox.Text))
{
e.CanExecute = false;
}
else
{
e.CanExecute = true;
}
}
//Updates all references to a project with the info of a new one
public void EditTopic(String oldTitle, Topic newTopic)
{
//update memory
if (!newTopic.title.Equals(oldTitle))
{
//add references to new title, remove references from old title
AddTopicToMemory(newTopic);
List <String> associatedTopics = new List <String>(topicConnections[oldTitle]);
foreach (String tag in associatedTopics)
{
CreateTopicTagPairing(newTopic.title, tag);
DeleteTopicTagPairing(oldTitle, tag);
}
RemoveTopicFromMemory(oldTitle);
}
else
{
topics[oldTitle] = newTopic;
}
//update database
//convert complex fields to binary
byte[] mainImageBytes = HelpFunctions.ImageToBytes(newTopic.main_image);
//update UserTopics
SQLiteCommand command = dbConnection.CreateCommand();
command.CommandText =
"update UserTopics set " +
"title = (@title), " +
"text_body = (@body), " +
"main_image = (@image) " + //don't forget to add comma back in
//"set image_gallery = (@gallery) " +
"where parent_project = (@parent) " +
"and title = (@oldTitle)";
command.Parameters.AddWithValue("@title", newTopic.title);
command.Parameters.AddWithValue("@body", newTopic.encoded_text);
command.Parameters.AddWithValue("@image", mainImageBytes);
//command.Parameters.AddWithValue("@gallery", );
command.Parameters.AddWithValue("@parent", newTopic.parent_project);
command.Parameters.AddWithValue("@oldTitle", oldTitle);
dbConnection.Open();
command.ExecuteNonQuery();
dbConnection.Close();
}
private void FillProjectSideBar(StackPanel OtherProjects)
{
List <String> appProjects = new List <string>();
foreach (String projectName in theWindow.appProjects)
{
if (!projectName.Equals((parentControl as ProjectHomeUserControl).project.title)) //don't give a link to the topic that's already displayed
{
WrapPanel cursorWrap = new WrapPanel();
TextBlock projectLink = HelpFunctions.CreateSideBarLink(projectName);
projectLink.Cursor = Cursors.Hand;
projectLink.MouseUp += LinkToTargetProject;
cursorWrap.Children.Add(projectLink);
OtherProjects.Children.Add(cursorWrap);
}
}
}
private void NewTag_Clicked(Object sender, RoutedEventArgs e)
{
if (!NewTagInputBox.Visibility.Equals(Visibility.Visible))
{
NewTagInputBox.Visibility = Visibility.Visible;
Keyboard.Focus(NewTagInputBox);
}
else
{
if (!HelpFunctions.StringIsBlank(NewTagInputBox.Text))
{
this.project.AddTag(NewTagInputBox.Text);
UpdateTagList();
NewTagInputBox.Visibility = Visibility.Collapsed;
NewTagInputBox.Text = "";
}
}
}
//Adds a togglebutton representing a tag to the UI
private void AddTagToUI(String tag)
{
ToggleButton tagUI = HelpFunctions.CreateTagToggle(tag);
//right click context menu
tagUI.ContextMenu = new ContextMenu();
tagUI.ContextMenu.PlacementTarget = tagUI;
tagUI.ContextMenu.Items.Add(new MenuItem());
((MenuItem)tagUI.ContextMenu.Items[0]).Header = "Add Topics";
((MenuItem)tagUI.ContextMenu.Items[0]).Click += AddTopicsToTag_Clicked;
tagUI.ContextMenu.Items.Add(new MenuItem());
((MenuItem)tagUI.ContextMenu.Items[1]).Header = "Remove Topics";
((MenuItem)tagUI.ContextMenu.Items[1]).Click += RemoveTopicsFromTag_Clicked;
tagUI.ContextMenu.Items.Add(new MenuItem());
((MenuItem)tagUI.ContextMenu.Items[2]).Header = "Delete Tag";
((MenuItem)tagUI.ContextMenu.Items[2]).Click += DeleteTag_Clicked;
//event handlers for sorting
tagUI.Checked += Tag_SelectionChanged;
tagUI.Unchecked += Tag_SelectionChanged;
//add to UI
this.tagsList.Add(tag, tagUI);
TagsPanel.Children.Add(tagUI);
}
