// M_NewImage can never be forcibly disposed, because it has always created by Document.AddShared... which use a CRC to check for duplicates
// therefore it could any time be an external image
public void btnImageRemove_Click(object sender, EventArgs e)
{
m_NewImage = null;
pnlImagePreview.Image = null;
ImageChanged();
chkDisplayFromAction.Checked = false;
}
public static SharedImage CreateForResource(string resourceID)
{
SharedImage image = new SharedImage();
image.m_ResourceName = resourceID;
// Note that the CRC must NOT use string.GetHashCode because that can vary between machines. The value is stored in the data and must be reproducible
image.CRC = CRCCalc.Calc(System.Text.Encoding.Unicode.GetBytes(resourceID));
return(image);
}
public override Fill CreateTextureBrush(SharedImage image, float scale)
{
var netImage = image.GetNetImage();
string ID = PrepareImage((Bitmap)netImage, image.GetHashCode(), RectangleF.Empty);
// This uses a different image key to the actual image insertion; but it is unlikely that the same image would be used both as a texture and an image
// and it is not the end of the world if the image gets embedded twice
return(new SVGTexture(ID, netImage.Size, this));
}
public void lstTextures_Click(object sender, EventArgs e)
{
ListView listView = (ListView)sender;
if (listView.SelectedItems.Count == 1)
{
m_Chosen = (SharedImage)listView.SelectedItems[0].Tag;
this.DialogResult = DialogResult.OK;
}
}
public void DrawImage(SharedImage image, int preferredSize, PointF[] destinationPoints, RectangleF sourceRect, ImageAttributes attributes = null)
{
if (!image.IsLightweight)
{
DrawImage(image.MemoryImage, destinationPoints, sourceRect, attributes);
}
else
{
DrawImage(image.ResourceName, preferredSize, destinationPoints, sourceRect, attributes);
}
}
public void btnResource_Click(object sender, EventArgs e)
{
string ID = frmResource.ChooseImage(this);
if (!string.IsNullOrEmpty(ID))
{
m_NewImage = Globals.Root.CurrentDocument.AddSharedBitmapForResource(ID, m_Transaction);
ImageChanged();
chkDisplayFromAction.Checked = false;
}
}
public static SharedImage CreateFromStream(Stream stream, bool isSVG, int CRC = 0)
{
SharedImage create = new SharedImage();
create.m_Image = new MemoryImage(stream, isSVG);
if (CRC == 0)
{
CRC = create.m_Image.CalcCRC();
}
create.CRC = CRC;
return(create);
}
public override void CopyFrom(Datum other, CopyDepth depth, Mapping mapID)
{
base.CopyFrom(other, depth, mapID);
SharedImage sharedImage = (SharedImage)other;
if (depth >= CopyDepth.Duplicate)
{
m_Image = sharedImage.m_Image?.Clone();
CRC = sharedImage.CRC;
}
m_ResourceName = sharedImage.m_ResourceName;
}
public override Fill CreateTextureBrush(SharedImage image, float scale)
{
try
{
TextureBrush create = new TextureBrush(image.GetNetImage());
Matrix matrix = create.Transform; // cannot do Brush.Transform.Scale because Transform returns a copy of the matrix
matrix.Scale(scale, scale);
create.Transform = matrix;
return(new NetFill(create));
}
catch (Exception ex)
{
// If this fails it returns a hatched brush
Utilities.LogSubError(ex);
return(new NetFill(new HatchBrush(HatchStyle.DiagonalCross, Color.Red, Color.White)));
}
}
public void btnLoad_Click(object sender, EventArgs e)
{
string filename = FileDialog.ShowOpen(FileDialog.Context.Image, "[Filter_Image1]");
if (string.IsNullOrEmpty(filename))
{
return;
}
Transaction transaction = new Transaction();
SharedImage texture = (SharedImage)m_Document.AddSharedResourceFromFile(filename, transaction);
Globals.Root.StoreNewTransaction(transaction);
if (texture != null)
{
m_Chosen = texture;
this.DialogResult = DialogResult.OK;
}
}
public void btnImageDisc_Click(object sender, EventArgs e)
{
string filename = FileDialog.ShowOpen(FileDialog.Context.Image);
if (string.IsNullOrEmpty(filename))
{
return;
}
try
{
m_NewImage = (SharedImage)Globals.Root.CurrentDocument.AddSharedResourceFromFile(filename, m_Transaction);
ImageChanged();
chkDisplayFromAction.Checked = false;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void lstDocument_DrawItem(object sender, DrawListViewItemEventArgs e)
{
SharedImage texture = (SharedImage)e.Item.Tag;
var rct = e.Bounds;
rct.Inflate(-6, -6); // area to draw image in
GUIUtilities.CalcDestRect(texture.GetSize(rct.Width), ref rct);
texture.MemoryImage.Draw(e.Graphics, rct);
Debug.WriteLine(e.State.ToString());
if ((e.State & ListViewItemStates.Focused) > 0)
{
rct = e.Bounds;
rct.Inflate(-3, -3);
using (Pen pn = new Pen(Color.Orange, 3))
{
e.Graphics.DrawRectangle(pn, rct);
}
}
}
/// <summary>Scale parameter determines how large the image is drawn</summary> public abstract Fill CreateTextureBrush(SharedImage image, float scale);