From fbf64780cc8dcc7d43b266e0c47ff3c16f120bbd Mon Sep 17 00:00:00 2001
From: Nathan Brown <nathanofbrown@gmail.com>
Date: Thu, 18 Nov 2021 22:54:20 -0800
Subject: [PATCH] Add functionality for top/bottom operations

---
 .../Drawing/DrawableContainerList.cs          | 60 ++++++++++++++++++-
 1 file changed, 58 insertions(+), 2 deletions(-)

diff --git a/src/Greenshot.Editor/Drawing/DrawableContainerList.cs b/src/Greenshot.Editor/Drawing/DrawableContainerList.cs
index c0a5a3099..bc006fc8c 100644
--- a/src/Greenshot.Editor/Drawing/DrawableContainerList.cs
+++ b/src/Greenshot.Editor/Drawing/DrawableContainerList.cs
@@ -609,7 +609,7 @@ namespace Greenshot.Editor.Drawing
                 // Calculate height and width of new frame.
                 int width = this[0].Width + surface.Image.Width;
                 int height = Math.Max(surface.Image.Height, this[0].Height);
-                int oldWidth = surface.Image.Width;
+                int imageBorder = surface.Image.Width;
                 // Create image for use as new frame.
                 Bitmap newImage = new Bitmap(width, height);
                 // Save old image.
@@ -617,7 +617,7 @@ namespace Greenshot.Editor.Drawing
                 // Set background to new, larger frame.
                 surface.Image = newImage;
                 // Move object to open space
-                this[0].MoveBy(oldWidth - this[0].Location.X, -this[0].Location.Y);
+                this[0].MoveBy(imageBorder - this[0].Location.X, -this[0].Location.Y);
                 // Push original image to bottom.
                 var oldImageContainer = surface.AddImageContainer(oldImage, 0, 0);
                 IDrawableContainerList oldImageContainerList = this.Clone();
@@ -654,6 +654,62 @@ namespace Greenshot.Editor.Drawing
             };
             menu.Items.Add(item);
 
+            // Top
+            item = new ToolStripMenuItem("Expand to Top")
+            {
+                Image = (Image)EditorFormResources.GetObject("removeObjectToolStripMenuItem.Image")
+            };
+            // Action to perform on click.
+            item.Click += delegate
+            {
+                // Calculate height and width of new frame.
+                int width = Math.Max(surface.Image.Width, this[0].Width);
+                int height = this[0].Height + surface.Image.Height;
+                int imageBorder = surface.Image.Width; // probably unnecessary
+                // Create image for use as new frame.
+                Bitmap newImage = new Bitmap(width, height);
+                // Save old image.
+                Bitmap oldImage = (Bitmap)ImageHelper.Clone(surface.Image);
+                // Set background to new, larger frame.
+                surface.Image = newImage;
+                // Move object to open space
+                this[0].MoveBy(-this[0].Location.X, -this[0].Location.Y);
+                // Re-add original image and push to bottom.
+                var oldImageContainer = surface.AddImageContainer(oldImage, 0, this[0].Height);
+                IDrawableContainerList oldImageContainerList = this.Clone();
+                oldImageContainerList[0] = oldImageContainer;
+                surface.Elements.PushElementsToBottom(oldImageContainerList);
+            };
+            menu.Items.Add(item);
+
+            // Top
+            item = new ToolStripMenuItem("Expand to Bottom")
+            {
+                Image = (Image)EditorFormResources.GetObject("removeObjectToolStripMenuItem.Image")
+            };
+            // Action to perform on click.
+            item.Click += delegate
+            {
+                // Calculate height and width of new frame.
+                int width = Math.Max(surface.Image.Width, this[0].Width);
+                int height = this[0].Height + surface.Image.Height;
+                int imageBorder = surface.Image.Height;
+                // Create image for use as new frame.
+                Bitmap newImage = new Bitmap(width, height);
+                // Save old image.
+                Bitmap oldImage = (Bitmap)ImageHelper.Clone(surface.Image);
+                // Set background to new, larger frame.
+                surface.Image = newImage;
+                // Move object to open space
+                this[0].MoveBy(-this[0].Location.X, imageBorder - this[0].Location.Y);
+                // Re-add original image and push to bottom.
+                var oldImageContainer = surface.AddImageContainer(oldImage, 0, 0);
+                IDrawableContainerList oldImageContainerList = this.Clone();
+                oldImageContainerList[0] = oldImageContainer;
+                surface.Elements.PushElementsToBottom(oldImageContainerList);
+            };
+            menu.Items.Add(item);
+
             // Delete
             item = new ToolStripMenuItem(Language.GetString(LangKey.editor_deleteelement))
             {