From 42a646f28e5ac18c8e1e02e1963c4bca21ce367e Mon Sep 17 00:00:00 2001
From: Ryan Foster <RytoEX@gmail.com>
Date: Wed, 7 Dec 2016 02:43:23 -0500
Subject: [PATCH] UI: Add ability to copy-paste scene item transforms

This commit adds the ability to copy a scene item's transform and crop
settings and paste those settings onto another scene item in any scene
or scene collection. It also changes the menu shortcut key for the
Transform action "Center to screen" from "C" to "n" because "C" is the
standard shortcut key for "Copy" in most other applications.

Closes jp9000/obs-studio#719
---
 UI/data/locale/en-US.ini |  2 ++
 UI/forms/OBSBasic.ui     | 15 ++++++++++++++
 UI/window-basic-main.cpp | 44 ++++++++++++++++++++++++++++++++++++++++
 UI/window-basic-main.hpp |  2 ++
 4 files changed, 63 insertions(+)

diff --git a/UI/data/locale/en-US.ini b/UI/data/locale/en-US.ini
index a8ebb2b15..c16b6714a 100644
--- a/UI/data/locale/en-US.ini
+++ b/UI/data/locale/en-US.ini
@@ -342,6 +342,8 @@ Basic.MainMenu.Edit.Scale.Canvas="Canvas (%1x%2)"
 Basic.MainMenu.Edit.Scale.Output="Output (%1x%2)"
 Basic.MainMenu.Edit.Transform="&Transform"
 Basic.MainMenu.Edit.Transform.EditTransform="&Edit Transform..."
+Basic.MainMenu.Edit.Transform.CopyTransform="Copy Transform"
+Basic.MainMenu.Edit.Transform.PasteTransform="Paste Transform"
 Basic.MainMenu.Edit.Transform.ResetTransform="&Reset Transform"
 Basic.MainMenu.Edit.Transform.Rotate90CW="Rotate 90 degrees CW"
 Basic.MainMenu.Edit.Transform.Rotate90CCW="Rotate 90 degrees CCW"
diff --git a/UI/forms/OBSBasic.ui b/UI/forms/OBSBasic.ui
index 041aa5897..d89016294 100644
--- a/UI/forms/OBSBasic.ui
+++ b/UI/forms/OBSBasic.ui
@@ -850,6 +850,8 @@
       <string>Basic.MainMenu.Edit.Transform</string>
      </property>
      <addaction name="actionEditTransform"/>
+     <addaction name="actionCopyTransform"/>
+     <addaction name="actionPasteTransform"/>
      <addaction name="actionResetTransform"/>
      <addaction name="separator"/>
      <addaction name="actionRotate90CW"/>
@@ -1129,6 +1131,19 @@
     <string>Basic.MainMenu.Edit.Transform.EditTransform</string>
    </property>
   </action>
+  <action name="actionCopyTransform">
+   <property name="text">
+    <string>Basic.MainMenu.Edit.Transform.CopyTransform</string>
+   </property>
+  </action>
+  <action name="actionPasteTransform">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>Basic.MainMenu.Edit.Transform.PasteTransform</string>
+   </property>
+  </action>
   <action name="actionRotate90CW">
    <property name="text">
     <string>Basic.MainMenu.Edit.Transform.Rotate90CW</string>
diff --git a/UI/window-basic-main.cpp b/UI/window-basic-main.cpp
index f2827aa67..cd326b2b1 100644
--- a/UI/window-basic-main.cpp
+++ b/UI/window-basic-main.cpp
@@ -4387,6 +4387,50 @@ void OBSBasic::on_actionEditTransform_triggered()
 	transformWindow->setAttribute(Qt::WA_DeleteOnClose, true);
 }
 
+static obs_transform_info copiedTransformInfo;
+static obs_sceneitem_crop copiedCropInfo;
+
+void OBSBasic::on_actionCopyTransform_triggered()
+{
+	auto func = [](obs_scene_t *scene, obs_sceneitem_t *item, void *param)
+	{
+		if (!obs_sceneitem_selected(item))
+			return true;
+
+		obs_sceneitem_defer_update_begin(item);
+		obs_sceneitem_get_info(item, &copiedTransformInfo);
+		obs_sceneitem_get_crop(item, &copiedCropInfo);
+		obs_sceneitem_defer_update_end(item);
+
+		UNUSED_PARAMETER(scene);
+		UNUSED_PARAMETER(param);
+		return true;
+	};
+
+	obs_scene_enum_items(GetCurrentScene(), func, nullptr);
+	ui->actionPasteTransform->setEnabled(true);
+}
+
+void OBSBasic::on_actionPasteTransform_triggered()
+{
+	auto func = [](obs_scene_t *scene, obs_sceneitem_t *item, void *param)
+	{
+		if (!obs_sceneitem_selected(item))
+			return true;
+
+		obs_sceneitem_defer_update_begin(item);
+		obs_sceneitem_set_info(item, &copiedTransformInfo);
+		obs_sceneitem_set_crop(item, &copiedCropInfo);
+		obs_sceneitem_defer_update_end(item);
+
+		UNUSED_PARAMETER(scene);
+		UNUSED_PARAMETER(param);
+		return true;
+	};
+
+	obs_scene_enum_items(GetCurrentScene(), func, nullptr);
+}
+
 void OBSBasic::on_actionResetTransform_triggered()
 {
 	auto func = [] (obs_scene_t *scene, obs_sceneitem_t *item, void *param)
diff --git a/UI/window-basic-main.hpp b/UI/window-basic-main.hpp
index 8cc5ef20a..1cdf9c0e8 100644
--- a/UI/window-basic-main.hpp
+++ b/UI/window-basic-main.hpp
@@ -498,6 +498,8 @@ private slots:
 	void on_actionCheckForUpdates_triggered();
 
 	void on_actionEditTransform_triggered();
+	void on_actionCopyTransform_triggered();
+	void on_actionPasteTransform_triggered();
 	void on_actionRotate90CW_triggered();
 	void on_actionRotate90CCW_triggered();
 	void on_actionRotate180_triggered();