/// <summary>
/// This method enables or disables menu items dynamically.
/// </summary>
/// <param name="args"></param>
private void InsertMenu_Popup(object sender, EventArgs e)
{
using (Synchronizer.Lock(this.m_Model.Workspace.CurrentDeckTraversal.SyncRoot)) {
if (~this.m_Model.Workspace.CurrentDeckTraversal == null)
{
//we do not have a deck, so all deck related items should be disabled.
foreach (MenuItem item in this.MenuItems)
{
item.Enabled = false;
}
}
else
{
// we have a deck
foreach (MenuItem item in this.MenuItems)
{
if (item is InsertImageFromFileMenuItem || item is InsertImageFromSnapshotMenuItem)
{
item.Enabled = true;
}
else if (item is InsertImageFromClipboardMenuItem)
{
item.Enabled = (Clipboard.GetDataObject()).GetDataPresent(DataFormats.Bitmap);
}
else if (item is InsertImageFromCameraMenuItem)
{
item.Enabled = CaptureGraphForm.HasCamera();
}
}
}
}
}
protected override void OnClick(EventArgs e)
{
SlideModel slide = null;
Model.Viewer.ViewerStateModel vsm = null;
using (Synchronizer.Lock(this.m_Model.Workspace.CurrentDeckTraversal.SyncRoot)) {
if ((~this.m_Model.Workspace.CurrentDeckTraversal) != null)
{
using (Synchronizer.Lock((~this.m_Model.Workspace.CurrentDeckTraversal).SyncRoot)) {
slide = (~this.m_Model.Workspace.CurrentDeckTraversal).Current.Slide;
}
}
}
using (Synchronizer.Lock(this.m_Model.SyncRoot)) {
vsm = this.m_Model.ViewerState;
}
if (slide != null && vsm != null)
{
CaptureGraphForm cg_form = new CaptureGraphForm(slide, vsm);
if (cg_form.ShowDialog() == DialogResult.OK)
{
InsertMenu.InsertImage(cg_form.Image, slide);
}
}
}
