Spreadsheet: Dataset region for spreadsheet editor

This patch adds a left aligned sidebar to the spreadsheet editor. This
Sidebar can be used to navigate the geometry component types and
attribute domains. It also provides a quick overview of domain sizes.
It replaces the two dropdowns in the regions header.
Next step will be to add the domain cycling shortcut
using the CTRL + mouse wheel.

Reviewer: Dalai Felinto (dfelinto), Julian Eisel (Severin),
Hans Goudey (HooglyBoogly).

Differential Revision: https://developer.blender.org/D11046

2 files changed, 32 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_300.c b/source/blender/blenloader/intern/versioning_300.c
index 0fe1267b871..cb0f1f29bff 100644
--- a/source/blender/blenloader/intern/versioning_300.c
+++ b/source/blender/blenloader/intern/versioning_300.c
@@ -40,7 +40,9 @@
 #include "BKE_node.h"
 
 #include "BLO_readfile.h"
+#include "MEM_guardedalloc.h"
 #include "readfile.h"
+#include "versioning_common.h"
 
 #include "MEM_guardedalloc.h"
 
@@ -122,6 +124,7 @@ void do_versions_after_linking_300(Main *bmain, ReportList *UNUSED(reports))
     sort_linked_ids(bmain);
     assert_sorted_ids(bmain);
   }
+
   if (MAIN_VERSION_ATLEAST(bmain, 300, 3)) {
     assert_sorted_ids(bmain);
   }
@@ -392,6 +395,26 @@ void blo_do_versions_300(FileData *fd, Library *UNUSED(lib), Main *bmain)
     }
   }
 
+  if (!MAIN_VERSION_ATLEAST(bmain, 300, 5)) {
+    /* Add a dataset sidebar to the spreadsheet editor. */
+    LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
+      LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+        LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
+          if (sl->spacetype == SPACE_SPREADSHEET) {
+            ListBase *regionbase = (sl == area->spacedata.first) ? &area->regionbase :
+                                   &sl->regionbase;
+            ARegion *spreadsheet_dataset_region = do_versions_add_region_if_not_found(
+                regionbase, RGN_TYPE_CHANNELS, "spreadsheet dataset region", RGN_TYPE_FOOTER);
+
+            if (spreadsheet_dataset_region) {
+              spreadsheet_dataset_region->alignment = RGN_ALIGN_LEFT;
+              spreadsheet_dataset_region->v2d.scroll = (V2D_SCROLL_RIGHT | V2D_SCROLL_BOTTOM);
+            }
+          }
+        }
+      }
+    }
+  }
   /**
    * Versioning code until next subversion bump goes here.
    *
diff --git a/source/blender/blenloader/intern/versioning_userdef.c b/source/blender/blenloader/intern/versioning_userdef.c
index be3834faa5a..42b27f57e2c 100644
--- a/source/blender/blenloader/intern/versioning_userdef.c
+++ b/source/blender/blenloader/intern/versioning_userdef.c
@@ -277,6 +277,15 @@ static void do_versions_theme(const UserDef *userdef, bTheme *btheme)
     btheme->space_spreadsheet = btheme->space_outliner;
   }
 
+  if (!USER_VERSION_ATLEAST(300, 5)) {
+    FROM_DEFAULT_V4_UCHAR(space_spreadsheet.active);
+    FROM_DEFAULT_V4_UCHAR(space_spreadsheet.list);
+    FROM_DEFAULT_V4_UCHAR(space_spreadsheet.list_text);
+    FROM_DEFAULT_V4_UCHAR(space_spreadsheet.list_text_hi);
+    FROM_DEFAULT_V4_UCHAR(space_spreadsheet.hilite);
+    FROM_DEFAULT_V4_UCHAR(space_spreadsheet.selected_highlight);
+  }
+
   /**
    * Versioning code until next subversion bump goes here.
    *