public void UnloadImage()
{
if (IsClosing)
{
return;
}
imageCached = BitmapChangeTracker.UndoCount != 0 || BitmapChangeTracker.RedoCount != 0;
bool isGif = BitmapChangeTracker.Format == ImgFormat.gif;
if (!imageCached)
{
ibMain.Image = null;
BitmapChangeTracker.Clear();
}
else
{
ibMain.DisposeImageBeforeChange = false; // let the change tracker handle disposing
ibMain.Image = null;
ibMain.DisposeImageBeforeChange = true;
}
ImageShown = false;
OnImageUnload();
if (InternalSettings.Garbage_Collect_On_Image_Unload)
{
GC.Collect();
}
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
bool isGif = BitmapChangeTracker.Format == Helpers.ImgFormat.gif;
BitmapChangeTracker.Dispose();
ibMain.Dispose();
if (disposing && (components != null))
{
components.Dispose();
}
if (ImageViewer.Settings.InternalSettings.Garbage_Collect_On_Image_Unload)
{
System.GC.Collect();
}
else if (ImageViewer.Settings.InternalSettings.Garbage_Collect_After_Disposing_Gif && isGif)
{
System.GC.Collect();
}
base.Dispose(disposing);
}
private void LoadImage()
{
if (PreventLoadImage)
{
return;
}
ibMain.Text = "";
if (!File.Exists(imagePath.FullName))
{
ibMain.Image = null;
ImageShown = false;
OnImageUnload();
Invalidate();
//MessageBox.Show("invalid image");
/*MessageBox.Show(this,
* InternalSettings.Item_Does_Not_Exist_Message,
* InternalSettings.Item_Does_Not_Exist_Title,
* MessageBoxButtons.OK);
*
* Program.mainForm.CloseCurrentTabPage();
*
* // need to call this here to display the image
* // of the tab that gets selected after CloseCurrentTabPage
* if (Program.mainForm.CurrentPage != null)
* Program.mainForm.CurrentPage.LoadImageSafe();
*/
ibMain.Text = "The Path: \n" + imagePath.FullName + "\nDoes Not Exists";
return;
}
if (changingImagePath)
{
BitmapChangeTracker?.Clear();
}
if (BitmapChangeTracker.CurrentBitmap == null)
{
BitmapChangeTracker.CurrentBitmap = ImageHelper.LoadImage(ImagePath.FullName); //ImageHelper.LoadImageAsBitmap(imagePath.FullName);
if (BitmapChangeTracker.CurrentBitmap == null || BitmapChangeTracker.CurrentBitmap.Image == null)
{
ibMain.Image = null;
ImageShown = false;
ibMain.Text = "The Path: \n" + imagePath.FullName + "\nCould Not Be Loaded, The Image Is Invalid / Unsupported";
OnImageUnload();
Invalidate();
}
}
if (InternalSettings.Show_Default_Transparent_Colors)
{
ibMain.GridColor = InternalSettings.Default_Transparent_Grid_Color;
ibMain.GridColorAlternate = InternalSettings.Default_Transparent_Grid_Color_Alternate;
}
else
{
ibMain.GridColor = InternalSettings.Current_Transparent_Grid_Color;
ibMain.GridColorAlternate = InternalSettings.Current_Transparent_Grid_Color_Alternate;
}
if (ImageAnimator.CanAnimate(BitmapChangeTracker.CurrentBitmap.Image))
{
int curFrame = 0;
if (GifDecoder != null)
{
curFrame = GifDecoder.ActiveFrameIndex;
}
GifDecoder = new GifDecoder(BitmapChangeTracker.CurrentBitmap as Gif);
if (curFrame != 0)
{
GifDecoder.SetFrame(curFrame);
}
}
else
{
GifDecoder = null;
}
ibMain.Image = BitmapChangeTracker.CurrentBitmap;
ImageShown = true;
OnImageLoad();
Invalidate();
}
