EXP-1811 FIX Login progress floater has smaller than expected size

made minimum size reflect default size for 1024 width window of old layout stack
no way to match behavior

indra/newview/llfloateruipreview.cpp

@@ -915,14 +915,16 @@ void LLFloaterUIPreview::displayFloater(BOOL click, S32 ID, bool save)
 		{
 			panel->buildFromFile(path);										// build it
 			LLRect new_size = panel->getRect();								// get its rectangle
-			panel->setOrigin(0,0);											// reset its origin point so it's not offset by -left or other XUI attributes
+			panel->setOrigin(2,2);											// reset its origin point so it's not offset by -left or other XUI attributes
 			(*floaterp)->setTitle(path);									// use the file name as its title, since panels have no guaranteed meaningful name attribute
 			panel->setUseBoundingRect(TRUE);								// enable the use of its outer bounding rect (normally disabled because it's O(n) on the number of sub-elements)
 			panel->updateBoundingRect();									// update bounding rect
 			LLRect bounding_rect = panel->getBoundingRect();				// get the bounding rect
 			LLRect new_rect = panel->getRect();								// get the panel's rect
 			new_rect.unionWith(bounding_rect);								// union them to make sure we get the biggest one possible
-			(*floaterp)->reshape(new_rect.getWidth(), new_rect.getHeight() + floater_header_size);	// reshape floater to match the union rect's dimensions
+			LLRect floater_rect = new_rect;
+			floater_rect.stretch(4, 4);
+			(*floaterp)->reshape(floater_rect.getWidth(), floater_rect.getHeight() + floater_header_size);	// reshape floater to match the union rect's dimensions
 			panel->reshape(new_rect.getWidth(), new_rect.getHeight());		// reshape panel to match the union rect's dimensions as well (both are needed)
 			(*floaterp)->addChild(panel);					// add panel as child
 			(*floaterp)->openFloater();						// open floater (needed?)

indra/newview/skins/default/xui/en/panel_progress.xml

@@ -12,43 +12,43 @@
      height="768"
      layout="topleft"
      left="0"
-     name="stack1"
+     name="horizontal_centering"
      orientation="horizontal"
      top="0"
      width="1024">
         <layout_panel
          layout="topleft"
          min_width="10"
-         name="panel1"
+         name="left"
          width="150" />
         <layout_panel
          height="768"
          layout="topleft"
-         min_width="640"
-         name="panel2"
-         width="640">
+         min_width="670"
+         name="center"
+         width="670">
             <layout_stack
              follows="left|right|top|bottom"
              height="768"
              layout="topleft"
              left="0"
              orientation="vertical" 
-             name="stack2"
+             name="vertical_centering"
              top="0"
-             width="640">
+             width="670">
                 <layout_panel
                  height="200"
                  layout="topleft"
                  min_height="10"
                  name="panel3"
-                 width="640" />
+                 width="670" />
                 <layout_panel
                  auto_resize="false"
                  height="250"
                  layout="topleft"
                  min_height="250"
                  name="panel4"
-                 width="640">
+                 width="670">
                     <icon
                      color="LoginProgressBoxCenterColor"
                      follows="left|right|bottom|top"
@@ -57,7 +57,7 @@
                      layout="topleft"
                      left="0"
                      top="0"
-                     width="640" />
+                     width="670" />
                     <text
                      follows="left|right|top"
                      font="SansSerifHuge"
@@ -69,7 +69,7 @@
                      name="title_text"
                      text_color="LoginProgressBoxTextColor"
                      top_delta="50"
-                     width="593" />
+                     right="-47"/>
                     <text
                      follows="left|right|top"
                      font="SansSerif"
@@ -81,7 +81,7 @@
                      name="progress_text"
                      text_color="LoginProgressBoxTextColor"
                      top_pad="5"
-                     width="593"
+                     right="-47"
                      word_wrap="true"/>
                     <progress_bar
                      bottom="115"
@@ -104,7 +104,7 @@
                      name="message_text"
                      text_color="LoginProgressBoxTextColor"
                      top="145"
-                     width="550"
+                     right="-90"
                      word_wrap="true"/>
                 </layout_panel>
                 <layout_panel
@@ -112,13 +112,13 @@
                  layout="topleft"
                  min_width="10"
                  name="panel5"
-                 width="640" />
+                 width="670" />
             </layout_stack>
         </layout_panel>
         <layout_panel
          layout="topleft"
          min_width="10"
-         name="panel6"
+         name="right"
          width="150" />
     </layout_stack>
     <button