michael/sourcegit
1
0
Fork 0
mirror of https://github.com/sourcegit-scm/sourcegit.git synced 2024-12-23 20:47:25 -08:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

enhance: do NOT use render target when there's only added or delete image.

Browse source
This commit is contained in:
leo 2024-06-22 14:00:49 +08:00
parent dde5d4a2a8
commit 4e8e39d2fe
No known key found for this signature in database
1 changed files with 20 additions and 27 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

47
src/Views/ImageDiffView.axaml.cs
View file

@ -244,42 +244,35 @@ namespace SourceGit.Views
var right = NewImage;
var drawLeft = left != null && alpha < 1.0;
var drawRight = right != null && alpha > 0;
var psize = left == null ? right.PixelSize : left.PixelSize;
var dpi = left == null ? right.Dpi : left.Dpi;
using (var rt = new RenderTargetBitmap(psize, dpi))
if (drawLeft && drawRight)
{
var rtRect = new Rect(rt.Size);
using (var dc = rt.CreateDrawingContext())
using (var rt = new RenderTargetBitmap(right.PixelSize, right.Dpi))
{
if (drawLeft)
{
if (drawRight)
{
using (dc.PushRenderOptions(RO_SRC))
using (dc.PushOpacity(1 - alpha))
dc.DrawImage(left, rtRect);
using (dc.PushRenderOptions(RO_DST))
using (dc.PushOpacity(alpha))
dc.DrawImage(right, rtRect);
}
else
{
using (dc.PushRenderOptions(RO_SRC))
using (dc.PushOpacity(1 - alpha))
dc.DrawImage(left, rtRect);
}
}
else if (drawRight)
var rtRect = new Rect(rt.Size);
using (var dc = rt.CreateDrawingContext())
{
using (dc.PushRenderOptions(RO_SRC))
using (dc.PushOpacity(1 - alpha))
dc.DrawImage(left, rtRect);
using (dc.PushRenderOptions(RO_DST))
using (dc.PushOpacity(alpha))
dc.DrawImage(right, rtRect);
}
}
context.DrawImage(rt, rtRect, rect);
context.DrawImage(rt, rtRect, rect);
}
}
else if (drawLeft)
{
using (context.PushOpacity(1 - alpha))
context.DrawImage(left, rect);
}
else if (drawRight)
{
using (context.PushOpacity(alpha))
context.DrawImage(right, rect);
}
}