private void SetPreviewImage(LayoutImage image, string source)
{
BitmapImage bi = new BitmapImage();
bi.BeginInit();
bi.CacheOption = BitmapCacheOption.OnLoad;
bi.UriSource = new Uri(source);
bi.EndInit();
image.Source = bi;
}
private void listImages_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (m_layoutCanvas == null || listImages.SelectedIndex < 0 || m_isManuallyEditing)
return;
string source = ((ImageBrowserPreview)listImages.SelectedItem).FilePath;
UIElement elem = canvas.SelectedElement;
bool canAdd = (elem == null) && m_layoutCanvas.SingleObjectStyle == PlacementStyle.Custom;
if (m_layoutCanvas.Count == 0 || canAdd)
{
// If we have ABSOLUTELY NOTHING, OR WE WANT TO ADD, DO THIS
SimpleImageObject sio = new SimpleImageObject(source);
LayoutImage lImage = new LayoutImage(sio);
m_layoutCanvas.Add(sio);
lImage.Width = sio.SourceWidth;
lImage.Height = sio.SourceHeight;
canvas.AddChild(lImage);
SetPreviewImage(lImage, sio.Source);
if (cmbFillMode.SelectedIndex != 4)
{
ApplyQuickLayout(sio, (PlacementStyle)cmbFillMode.SelectedIndex);
}
else
{
sio.ActualWidth = sio.SourceWidth;
sio.ActualHeight = sio.SourceHeight;
sio.X = 0;
sio.Y = 0;
}
RefreshCanvasChild(lImage);
RefreshFillModeState();
RefreshAdvancedButtonState();
}
else
{
// EDIT THE SELECTED ELEMENT, OR FIRST ELEMENT
if (elem == null)
elem = canvas.First();
SimpleImageObject sio = (SimpleImageObject)((LayoutImage)elem).LayoutObject;
sio.Source = source;
// We have a selected element, modify it
SetPreviewImage((LayoutImage)elem, sio.Source);
if (cmbFillMode.SelectedIndex != 4)
{
ApplyQuickLayout(sio, (PlacementStyle)cmbFillMode.SelectedIndex);
RefreshCanvasChild((LayoutImage)elem);
}
}
}
private void RefreshCanvasChild(LayoutImage elem)
{
LayoutObject lo = ((LayoutImage)elem).LayoutObject;
canvas.MoveUIElement(elem, new Point(lo.X, lo.Y), DraggableCanvas.MeasureType.Absolute);
canvas.ResizeUIElement(elem,
new Size(lo.ActualWidth, lo.ActualHeight),
DraggableCanvas.MeasureType.Absolute);
canvas.FlipUIElement(elem, lo.IsFlippedX, lo.IsFlippedY);
canvas.SetUIElementZIndex(elem, lo.Z);
}
public void SetupLayout(LayoutCanvas layoutCanvas, Screen screen, bool isDesktopMode)
{
// Cache the references to the canvas and screen
m_layoutCanvas = layoutCanvas;
m_screen = screen;
// Set initial canvas attributes
canvas.Width = screen.Width;
canvas.Height = screen.Height;
// Set the canvas background
canvas.Background = new SolidColorBrush(
WpfToGdi.GdiColorToWpfColour(layoutCanvas.BackgroundColour));
canvas.ClearChildren();
foreach (LayoutObject lo in layoutCanvas)
{
LayoutImage lImage = new LayoutImage(lo);
// Add to canvas (but don't add through the helper, because we want to manually manipulate
// this object)
canvas.Children.Add(lImage);
// Set the preview image
SetPreviewImage(lImage, lo.Source);
// Set attributes onto the child
RefreshCanvasChild(lImage);
}
// Set the manual edit flag so that we don't trigger events when we change
// these objects
m_isManuallyEditing = true;
chkShuffle.Visibility = isDesktopMode ? Visibility.Visible : Visibility.Hidden;
chkShuffle.IsChecked = layoutCanvas.IsShuffleEnabled;
cmdChangeInterval.SelectedIndex = GetIntervalIndex(m_layoutCanvas.ShuffleMode);
cmbFillMode.SelectedIndex = (int)m_layoutCanvas.SingleObjectStyle;
m_isManuallyEditing = false;
RefreshFillModeState();
RefreshAdvancedButtonState();
RefreshEditorState();
}