From dbb613a2d88fda507b7e3ac46e938f4258a70ec8 Mon Sep 17 00:00:00 2001
From: maxim_productengine <mnikolenko@productengine.com>
Date: Tue, 2 Jul 2019 16:52:21 +0300
Subject: SL-11456 Allow scaling of HUD attachments

---
 indra/newview/app_settings/settings.xml            | 11 +++++++++
 indra/newview/llagentcamera.cpp                    |  6 +++++
 indra/newview/llagentcamera.h                      |  1 +
 indra/newview/llselectmgr.cpp                      | 10 +++++----
 indra/newview/llviewerdisplay.cpp                  |  2 +-
 .../default/xui/en/panel_preferences_advanced.xml  | 26 ++++++++++++++++++++++
 6 files changed, 51 insertions(+), 5 deletions(-)

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 49601ae98f..472a76a7e2 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -13133,6 +13133,17 @@
       <key>Value</key>
       <real>3</real>
     </map>
+    <key>HUDScaleFactor</key>
+    <map>
+    <key>Comment</key>
+      <string>Scale of HUD attachments</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>F32</string>
+      <key>Value</key>
+      <real>1.0</real>
+    </map>
     <key>UIScaleFactor</key>
     <map>
       <key>Comment</key>
diff --git a/indra/newview/llagentcamera.cpp b/indra/newview/llagentcamera.cpp
index 92a3026096..fd8797481d 100644
--- a/indra/newview/llagentcamera.cpp
+++ b/indra/newview/llagentcamera.cpp
@@ -807,6 +807,12 @@ void LLAgentCamera::setCameraZoomFraction(F32 fraction)
 	startCameraAnimation();
 }
 
+F32 LLAgentCamera::getAgentHUDTargetZoom()
+{
+	static LLCachedControl<F32> hud_scale_factor(gSavedSettings, "HUDScaleFactor");
+	LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+	return (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD) ? hud_scale_factor*gAgentCamera.mHUDTargetZoom : hud_scale_factor;
+}
 
 //-----------------------------------------------------------------------------
 // cameraOrbitAround()
diff --git a/indra/newview/llagentcamera.h b/indra/newview/llagentcamera.h
index d087de1e2f..a4bc8434b0 100644
--- a/indra/newview/llagentcamera.h
+++ b/indra/newview/llagentcamera.h
@@ -266,6 +266,7 @@ public:
 	F32				getCameraZoomFraction();				// Get camera zoom as fraction of minimum and maximum zoom
 	void			setCameraZoomFraction(F32 fraction);	// Set camera zoom as fraction of minimum and maximum zoom
 	F32				calcCameraFOVZoomFactor();
+	F32				getAgentHUDTargetZoom();
 
 	//--------------------------------------------------------------------
 	// Pan
diff --git a/indra/newview/llselectmgr.cpp b/indra/newview/llselectmgr.cpp
index d2db6f6649..3df6f25917 100644
--- a/indra/newview/llselectmgr.cpp
+++ b/indra/newview/llselectmgr.cpp
@@ -6607,8 +6607,7 @@ void LLSelectMgr::updateSelectionCenter()
 		if (mSelectedObjects->mSelectType != SELECT_TYPE_HUD && isAgentAvatarValid())
 		{
 			// reset hud ZOOM
-			gAgentCamera.mHUDTargetZoom = 1.f;
-			gAgentCamera.mHUDCurZoom = 1.f;
+			resetAgentHUDZoom();
 		}
 
 		mShowSelection = FALSE;
@@ -6981,8 +6980,11 @@ BOOL LLSelectMgr::setForceSelection(BOOL force)
 
 void LLSelectMgr::resetAgentHUDZoom()
 {
-	gAgentCamera.mHUDTargetZoom = 1.f;
-	gAgentCamera.mHUDCurZoom = 1.f;
+	if (gAgentCamera.mHUDTargetZoom != 1)
+	{
+		gAgentCamera.mHUDTargetZoom = 1.f;
+		gAgentCamera.mHUDCurZoom = 1.f;
+	}
 }
 
 void LLSelectMgr::getAgentHUDZoom(F32 &target_zoom, F32 &current_zoom) const
diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 5924dbc260..a3d946c4d4 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -1087,7 +1087,7 @@ void render_hud_attachments()
 	// clamp target zoom level to reasonable values
 	gAgentCamera.mHUDTargetZoom = llclamp(gAgentCamera.mHUDTargetZoom, 0.1f, 1.f);
 	// smoothly interpolate current zoom level
-	gAgentCamera.mHUDCurZoom = lerp(gAgentCamera.mHUDCurZoom, gAgentCamera.mHUDTargetZoom, LLSmoothInterpolation::getInterpolant(0.03f));
+	gAgentCamera.mHUDCurZoom = lerp(gAgentCamera.mHUDCurZoom, gAgentCamera.getAgentHUDTargetZoom(), LLSmoothInterpolation::getInterpolant(0.03f));
 
 	if (LLPipeline::sShowHUDAttachments && !gDisconnected && setup_hud_matrices())
 	{
diff --git a/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml b/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml
index 4f0bb9d3b7..8296438d4c 100644
--- a/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml
+++ b/indra/newview/skins/default/xui/en/panel_preferences_advanced.xml
@@ -142,6 +142,32 @@
    min_val="0.75"
    name="ui_scale_slider"
    top_pad="-14"
+   width="250" />
+  <text
+  type="string"
+  length="1"
+  follows="left|top"
+  height="12"
+  layout="topleft"
+  left="33"
+  name="HUD Size:"
+  top_pad="20"
+  width="100">
+    HUD Scale:
+  </text>
+  <slider
+   control_name="HUDScaleFactor"
+   decimal_digits="2"
+   follows="left|top"
+   height="17"
+   increment="0.1"
+   initial_value="1"
+   layout="topleft"
+   left_pad="0"
+   max_val="2.0"
+   min_val="1.0"
+   name="ui_scale_slider"
+   top_pad="-14"
    width="250" />
     <check_box
      control_name="ShowScriptErrors"
-- 
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