From 7a8ae1a795b7cdf6341e49ba7b613e8fdbc03814 Mon Sep 17 00:00:00 2001
From: Vo1 <insyon@gmail.com>
Date: Tue, 14 Sep 2021 20:36:06 +0200
Subject: [PATCH] Screen index and offset support

---
 src/OnTopReplica/StartupOptions/Factory.cs |  3 +++
 src/OnTopReplica/StartupOptions/Options.cs | 16 ++++++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/OnTopReplica/StartupOptions/Factory.cs b/src/OnTopReplica/StartupOptions/Factory.cs
index d977c30..770a1b8 100644
--- a/src/OnTopReplica/StartupOptions/Factory.cs
+++ b/src/OnTopReplica/StartupOptions/Factory.cs
@@ -67,6 +67,9 @@ namespace OnTopReplica.StartupOptions {
 
         private static void ParseCommandLine(string[] args, Options options) {
             var cmdOptions = new NDesk.Options.OptionSet()
+                .Add<int>("screen=", "ScreenIndex to display on.", id => {
+                    options.ScreenIndex = id;
+                })
                 .Add<long>("windowId=", "Window handle ({HWND}) to be cloned.", id => {
                     options.WindowId = new IntPtr(id);
                     options.WindowTitle = null;
diff --git a/src/OnTopReplica/StartupOptions/Options.cs b/src/OnTopReplica/StartupOptions/Options.cs
index 03d8a51..d230809 100644
--- a/src/OnTopReplica/StartupOptions/Options.cs
+++ b/src/OnTopReplica/StartupOptions/Options.cs
@@ -5,7 +5,8 @@ using System.Text;
 using System.Drawing;
 using System.IO;
 using OnTopReplica.WindowSeekers;
-
+using System.Windows.Forms;
+
 namespace OnTopReplica.StartupOptions {
 
     /// <summary>
@@ -19,7 +20,9 @@ namespace OnTopReplica.StartupOptions {
             DisableChrome = false;
             MustBeVisible = false;
             Fullscreen = false;
-        }
+        }
+
+        public int ScreenIndex = 0;
 
         #region Position and size
 
@@ -97,6 +100,12 @@ namespace OnTopReplica.StartupOptions {
 
         #region Application
 
+        private void setFormLocation(Form form, Screen screen) {
+            Point start = StartLocation ?? default(Point);
+            Point loc = new Point(start.X + screen.WorkingArea.Location.X, start.Y + screen.WorkingArea.Location.Y);
+            form.Location = loc;
+        }
+
         public void Apply(MainForm form) {
             Log.Write("Applying command line launch parameters");
 
@@ -160,6 +169,9 @@ namespace OnTopReplica.StartupOptions {
                 form.ClientSize = StartSize.Value;
             }
 
+            if (ScreenIndex != 0) {
+                setFormLocation(form, Screen.AllScreens[ScreenIndex]);
+            }
             //Other features
             if (EnableClickForwarding) {
                 form.ClickForwardingEnabled = true;