UI: Status Bar Statistics and Other Options

Status Bar can show scene statistics, memory usage, version, etc set by context menu. Part two of T75672.

Differential Revision: https://developer.blender.org/D7557

Reviewed by Julian Eisel

release/datafiles/userdef/userdef_default.c

@@ -229,6 +229,8 @@ const UserDef U_default = {
 
     .collection_instance_empty_size = 1.0f,
 
+    .statusbar_flag = STATUSBAR_SHOW_VERSION,
+
     .runtime =
         {
             .is_dirty = 0,

release/scripts/startup/bl_ui/space_statusbar.py

@@ -31,17 +31,20 @@ class STATUSBAR_HT_header(Header):
 
         layout.separator_spacer()
 
-        # messages
+        # Nothing in the center.
-        layout.template_reports_banner()
-        layout.template_running_jobs()
-
         layout.separator_spacer()
 
-        # stats
+        row = layout.row()
-        scene = context.scene
+        row.alignment = 'RIGHT'
-        view_layer = context.view_layer
 
-        layout.label(text=scene.statistics(view_layer), translate=False)
+        # Stats & Info
+        row.label(text=context.screen.statusbar_info(), translate=False)
+
+        # Messages
+        row.template_reports_banner()
+
+        # Progress Bar
+        row.template_running_jobs()
 
 
 classes = (

release/scripts/startup/bl_ui/space_userpref.py

@@ -283,6 +283,22 @@ class USERPREF_PT_interface_temporary_windows(InterfacePanel, CenterAlignMixIn,
         col.prop(view, "filebrowser_display_type", text="File Browser")
 
 
+class USERPREF_PT_interface_statusbar(InterfacePanel, CenterAlignMixIn, Panel):
+    bl_label = "Status Bar"
+    bl_parent_id = "USERPREF_PT_interface_editors"
+    bl_options = {'DEFAULT_CLOSED'}
+
+    def draw_centered(self, context, layout):
+        prefs = context.preferences
+        view = prefs.view
+
+        col = layout.column(heading="Show")
+        col.prop(view, "show_statusbar_stats", text="Scene Statistics")
+        col.prop(view, "show_statusbar_memory", text="System Memory")
+        col.prop(view, "show_statusbar_vram", text="Video Memory")
+        col.prop(view, "show_statusbar_version", text="Blender Version")
+
+
 class USERPREF_PT_interface_menus(InterfacePanel, Panel):
     bl_label = "Menus"
     bl_options = {'DEFAULT_CLOSED'}
@@ -2189,6 +2205,7 @@ classes = (
     USERPREF_PT_interface_display,
     USERPREF_PT_interface_editors,
     USERPREF_PT_interface_temporary_windows,
+    USERPREF_PT_interface_statusbar,
     USERPREF_PT_interface_translation,
     USERPREF_PT_interface_text,
     USERPREF_PT_interface_menus,

source/blender/blenkernel/BKE_blender_version.h

@@ -34,7 +34,7 @@ extern "C" {
 /* Blender major and minor version. */
 #define BLENDER_VERSION 290
 /* Blender patch version for bugfix releases. */
-#define BLENDER_VERSION_PATCH 0
+#define BLENDER_VERSION_PATCH 1
 /** Blender release cycle stage: alpha/beta/rc/release. */
 #define BLENDER_VERSION_CYCLE alpha
 

source/blender/blenloader/intern/versioning_userdef.c

@@ -753,6 +753,10 @@ void BLO_version_defaults_userpref_blend(Main *bmain, UserDef *userdef)
     userdef->transopts &= ~USER_DOTRANSLATE_DEPRECATED;
   }
 
+  if (!USER_VERSION_ATLEAST(290, 1)) {
+    userdef->statusbar_flag = STATUSBAR_SHOW_VERSION;
+  }
+
   /**
    * Versioning code until next subversion bump goes here.
    *

source/blender/editors/include/ED_info.h

@@ -31,9 +31,11 @@ struct Main;
 
 /* info_stats.c */
 void ED_info_stats_clear(struct ViewLayer *view_layer);
-const char *ED_info_footer_string(struct ViewLayer *view_layer);
+const char *ED_info_statusbar_string(struct Main *bmain,
+                                     struct bScreen *screen,
+                                     struct bContext *C);
 void ED_info_draw_stats(
-    Main *bmain, Scene *scene, ViewLayer *view_layer, int x, int *y, int height);
+    struct Main *bmain, Scene *scene, ViewLayer *view_layer, int x, int *y, int height);
 
 #ifdef __cplusplus
 }

source/blender/editors/screen/screen_ops.c

@@ -89,6 +89,8 @@
 #include "UI_resources.h"
 #include "UI_view2d.h"
 
+#include "GPU_extensions.h"
+
 #include "screen_intern.h" /* own module include */
 
 #define KM_MODAL_CANCEL 1
@@ -4127,12 +4129,6 @@ static void SCREEN_OT_header_toggle_menus(wmOperatorType *ot)
 /** \name Region Context Menu Operator (Header/Footer/Navbar)
  * \{ */
 
-static bool screen_region_context_menu_poll(bContext *C)
-{
-  ScrArea *area = CTX_wm_area(C);
-  return (area && area->spacetype != SPACE_STATUSBAR);
-}
-
 void ED_screens_header_tools_menu_create(bContext *C, uiLayout *layout, void *UNUSED(arg))
 {
   ScrArea *area = CTX_wm_area(C);
@@ -4221,15 +4217,35 @@ void ED_screens_navigation_bar_tools_menu_create(bContext *C, uiLayout *layout,
   uiItemO(layout, but_flip_str, ICON_NONE, "SCREEN_OT_region_flip");
 }
 
+static void ED_screens_statusbar_menu_create(bContext *C, uiLayout *layout, void *UNUSED(arg))
+{
+  PointerRNA ptr;
+
+  RNA_pointer_create(NULL, &RNA_PreferencesView, &U, &ptr);
+  uiItemR(layout, &ptr, "show_statusbar_stats", 0, IFACE_("Scene Statistics"), ICON_NONE);
+  uiItemR(layout, &ptr, "show_statusbar_memory", 0, IFACE_("System Memory"), ICON_NONE);
+  if (GPU_mem_stats_supported()) {
+    uiItemR(layout, &ptr, "show_statusbar_vram", 0, IFACE_("Video Memory"), ICON_NONE);
+  }
+  uiItemR(layout, &ptr, "show_statusbar_version", 0, IFACE_("Blender Version"), ICON_NONE);
+}
+
 static int screen_context_menu_invoke(bContext *C,
                                       wmOperator *UNUSED(op),
                                       const wmEvent *UNUSED(event))
 {
   uiPopupMenu *pup;
   uiLayout *layout;
+  const ScrArea *area = CTX_wm_area(C);
   const ARegion *region = CTX_wm_region(C);
 
-  if (ELEM(region->regiontype, RGN_TYPE_HEADER, RGN_TYPE_TOOL_HEADER)) {
+  if (area && area->spacetype == SPACE_STATUSBAR) {
+    pup = UI_popup_menu_begin(C, IFACE_("Status Bar"), ICON_NONE);
+    layout = UI_popup_menu_layout(pup);
+    ED_screens_statusbar_menu_create(C, layout, NULL);
+    UI_popup_menu_end(C, pup);
+  }
+  else if (ELEM(region->regiontype, RGN_TYPE_HEADER, RGN_TYPE_TOOL_HEADER)) {
     pup = UI_popup_menu_begin(C, IFACE_("Header"), ICON_NONE);
     layout = UI_popup_menu_layout(pup);
     ED_screens_header_tools_menu_create(C, layout, NULL);
@@ -4259,7 +4275,6 @@ static void SCREEN_OT_region_context_menu(wmOperatorType *ot)
   ot->idname = "SCREEN_OT_region_context_menu";
 
   /* api callbacks */
-  ot->poll = screen_region_context_menu_poll;
   ot->invoke = screen_context_menu_invoke;
 }
 

source/blender/editors/space_info/info_stats.c

@@ -43,6 +43,7 @@
 #include "BLT_translation.h"
 
 #include "BKE_blender_version.h"
+#include "BKE_context.h"
 #include "BKE_curve.h"
 #include "BKE_displist.h"
 #include "BKE_editmesh.h"
@@ -405,46 +406,6 @@ static void stats_update(Depsgraph *depsgraph, ViewLayer *view_layer)
   *(view_layer->stats) = stats;
 }
 
-static const char *footer_string(ViewLayer *view_layer)
-{
-#define MAX_INFO_MEM_LEN 64
-  char memstr[MAX_INFO_MEM_LEN];
-  char gpumemstr[MAX_INFO_MEM_LEN] = "";
-  char formatted_mem[15];
-  size_t ofs = 0;
-
-  uintptr_t mem_in_use = MEM_get_memory_in_use();
-
-  /* get memory statistics */
-  BLI_str_format_byte_unit(formatted_mem, mem_in_use, false);
-  ofs = BLI_snprintf(memstr, MAX_INFO_MEM_LEN, TIP_("Mem: %s"), formatted_mem);
-
-  if (GPU_mem_stats_supported()) {
-    int gpu_free_mem, gpu_tot_memory;
-
-    GPU_mem_stats_get(&gpu_tot_memory, &gpu_free_mem);
-
-    BLI_str_format_byte_unit(formatted_mem, gpu_free_mem, false);
-    ofs = BLI_snprintf(gpumemstr, MAX_INFO_MEM_LEN, TIP_(" | Free GPU Mem: %s"), formatted_mem);
-
-    if (gpu_tot_memory) {
-      BLI_str_format_byte_unit(formatted_mem, gpu_tot_memory, false);
-      BLI_snprintf(gpumemstr + ofs, MAX_INFO_MEM_LEN - ofs, TIP_("/%s"), formatted_mem);
-    }
-  }
-
-  BLI_snprintf(view_layer->footer_str,
-               sizeof(view_layer->footer_str),
-               "%s%s | %s",
-               memstr,
-               gpumemstr,
-               BKE_blender_version_string());
-
-  return view_layer->footer_str;
-
-#undef MAX_INFO_MEM_LEN
-}
-
 void ED_info_stats_clear(ViewLayer *view_layer)
 {
   if (view_layer->stats) {
@@ -453,45 +414,26 @@ void ED_info_stats_clear(ViewLayer *view_layer)
   }
 }
 
-const char *ED_info_footer_string(ViewLayer *view_layer)
+static bool format_stats(Main *bmain,
-{
+                         Scene *scene,
-  return footer_string(view_layer);
+                         ViewLayer *view_layer,
-}
+                         SceneStatsFmt *stats_fmt)
-
-static void stats_row(int col1,
-                      const char *key,
-                      int col2,
-                      const char *value1,
-                      const char *value2,
-                      int *y,
-                      int height)
-{
-  *y -= height;
-  BLF_draw_default(col1, *y, 0.0f, key, 128);
-  char values[128];
-  BLI_snprintf(values, sizeof(values), (value2) ? "%s / %s" : "%s", value1, value2);
-  BLF_draw_default(col2, *y, 0.0f, values, sizeof(values));
-}
-
-void ED_info_draw_stats(
-    Main *bmain, Scene *scene, ViewLayer *view_layer, int x, int *y, int height)
 {
   /* Create stats if they don't already exist. */
   if (!view_layer->stats) {
     /* Do not not access dependency graph if interface is marked as locked. */
     wmWindowManager *wm = bmain->wm.first;
     if (wm->is_interface_locked) {
-      return;
+      return false;
     }
     Depsgraph *depsgraph = BKE_scene_get_depsgraph(bmain, scene, view_layer, true);
     stats_update(depsgraph, view_layer);
   }
 
   SceneStats *stats = view_layer->stats;
-  SceneStatsFmt stats_fmt;
 
   /* Generate formatted numbers. */
-#define SCENE_STATS_FMT_INT(_id) BLI_str_format_uint64_grouped(stats_fmt._id, stats->_id)
+#define SCENE_STATS_FMT_INT(_id) BLI_str_format_uint64_grouped(stats_fmt->_id, stats->_id)
 
   SCENE_STATS_FMT_INT(totvert);
   SCENE_STATS_FMT_INT(totvertsel);
@@ -519,6 +461,176 @@ void ED_info_draw_stats(
   SCENE_STATS_FMT_INT(totgppoint);
 
 #undef SCENE_STATS_FMT_INT
+  return true;
+}
+
+static void get_stats_string(
+    char *info, int len, size_t *ofs, ViewLayer *view_layer, SceneStatsFmt *stats_fmt)
+{
+  Object *ob = OBACT(view_layer);
+  Object *obedit = OBEDIT_FROM_OBACT(ob);
+  eObjectMode object_mode = ob ? ob->mode : OB_MODE_OBJECT;
+  LayerCollection *layer_collection = view_layer->active_collection;
+
+  if (object_mode == OB_MODE_OBJECT) {
+    *ofs += BLI_snprintf(info + *ofs,
+                         len - *ofs,
+                         "%s | ",
+                         BKE_collection_ui_name_get(layer_collection->collection));
+  }
+
+  if (ob) {
+    *ofs += BLI_snprintf(info + *ofs, len - *ofs, "%s | ", ob->id.name + 2);
+  }
+
+  if (obedit) {
+    if (BKE_keyblock_from_object(obedit)) {
+      *ofs += BLI_strncpy_rlen(info + *ofs, TIP_("(Key) "), len - *ofs);
+    }
+
+    if (obedit->type == OB_MESH) {
+      *ofs += BLI_snprintf(info + *ofs,
+                           len - *ofs,
+                           TIP_("Verts:%s/%s | Edges:%s/%s | Faces:%s/%s | Tris:%s"),
+                           stats_fmt->totvertsel,
+                           stats_fmt->totvert,
+                           stats_fmt->totedgesel,
+                           stats_fmt->totedge,
+                           stats_fmt->totfacesel,
+                           stats_fmt->totface,
+                           stats_fmt->tottri);
+    }
+    else if (obedit->type == OB_ARMATURE) {
+      *ofs += BLI_snprintf(info + *ofs,
+                           len - *ofs,
+                           TIP_("Verts:%s/%s | Bones:%s/%s"),
+                           stats_fmt->totvertsel,
+                           stats_fmt->totvert,
+                           stats_fmt->totbonesel,
+                           stats_fmt->totbone);
+    }
+    else {
+      *ofs += BLI_snprintf(
+          info + *ofs, len - *ofs, TIP_("Verts:%s/%s"), stats_fmt->totvertsel, stats_fmt->totvert);
+    }
+  }
+  else if (ob && (object_mode & OB_MODE_POSE)) {
+    *ofs += BLI_snprintf(
+        info + *ofs, len - *ofs, TIP_("Bones:%s/%s"), stats_fmt->totbonesel, stats_fmt->totbone);
+  }
+  else if ((ob) && (ob->type == OB_GPENCIL)) {
+    *ofs += BLI_snprintf(info + *ofs,
+                         len - *ofs,
+                         TIP_("Layers:%s | Frames:%s | Strokes:%s | Points:%s"),
+                         stats_fmt->totgplayer,
+                         stats_fmt->totgpframe,
+                         stats_fmt->totgpstroke,
+                         stats_fmt->totgppoint);
+  }
+  else if (stats_is_object_dynamic_topology_sculpt(ob, object_mode)) {
+    *ofs += BLI_snprintf(info + *ofs,
+                         len - *ofs,
+                         TIP_("Verts:%s | Tris:%s"),
+                         stats_fmt->totvert,
+                         stats_fmt->tottri);
+  }
+  else {
+    *ofs += BLI_snprintf(info + *ofs,
+                         len - *ofs,
+                         TIP_("Verts:%s | Faces:%s | Tris:%s"),
+                         stats_fmt->totvert,
+                         stats_fmt->totface,
+                         stats_fmt->tottri);
+  }
+
+  *ofs += BLI_snprintf(
+      info + *ofs, len - *ofs, TIP_(" | Objects:%s/%s"), stats_fmt->totobjsel, stats_fmt->totobj);
+}
+
+const char *ED_info_statusbar_string(Main *bmain, bScreen *screen, bContext *C)
+{
+  char formatted_mem[15];
+  size_t ofs = 0;
+  char *info = screen->statusbar_info;
+  int len = sizeof(screen->statusbar_info);
+
+  info[0] = '\0';
+
+  /* Scene statistics. */
+  if (U.statusbar_flag & STATUSBAR_SHOW_STATS) {
+    ViewLayer *view_layer = CTX_data_view_layer(C);
+    Scene *scene = CTX_data_scene(C);
+    SceneStatsFmt stats_fmt;
+    if (format_stats(bmain, scene, view_layer, &stats_fmt)) {
+      get_stats_string(info + ofs, len, &ofs, view_layer, &stats_fmt);
+    }
+  }
+
+  /* Memory status. */
+  if (U.statusbar_flag & STATUSBAR_SHOW_MEMORY) {
+    if (info[0]) {
+      ofs += BLI_snprintf(info + ofs, len - ofs, " | ");
+    }
+    uintptr_t mem_in_use = MEM_get_memory_in_use();
+    BLI_str_format_byte_unit(formatted_mem, mem_in_use, false);
+    ofs += BLI_snprintf(info + ofs, len, TIP_("Memory: %s"), formatted_mem);
+  }
+
+  /* GPU VRAM status. */
+  if ((U.statusbar_flag & STATUSBAR_SHOW_VRAM) && (GPU_mem_stats_supported())) {
+    int gpu_free_mem_kb, gpu_tot_mem_kb;
+    GPU_mem_stats_get(&gpu_tot_mem_kb, &gpu_free_mem_kb);
+    float gpu_total_gb = gpu_tot_mem_kb / 1048576.0f;
+    float gpu_free_gb = gpu_free_mem_kb / 1048576.0f;
+    if (info[0]) {
+      ofs += BLI_snprintf(info + ofs, len - ofs, " | ");
+    }
+    if (gpu_free_mem_kb && gpu_tot_mem_kb) {
+      ofs += BLI_snprintf(info + ofs,
+                          len - ofs,
+                          TIP_("VRAM: %.1f/%.1f GiB"),
+                          gpu_total_gb - gpu_free_gb,
+                          gpu_total_gb);
+    }
+    else {
+      /* Can only show amount of GPU VRAM available. */
+      ofs += BLI_snprintf(info + ofs, len - ofs, TIP_("VRAM: %.1f GiB Free"), gpu_free_gb);
+    }
+  }
+
+  /* Blender version. */
+  if (U.statusbar_flag & STATUSBAR_SHOW_VERSION) {
+    if (info[0]) {
+      ofs += BLI_snprintf(info + ofs, len - ofs, " | ");
+    }
+    ofs += BLI_snprintf(info + ofs, len - ofs, TIP_("%s"), BKE_blender_version_string());
+  }
+
+  return info;
+}
+
+static void stats_row(int col1,
+                      const char *key,
+                      int col2,
+                      const char *value1,
+                      const char *value2,
+                      int *y,
+                      int height)
+{
+  *y -= height;
+  BLF_draw_default(col1, *y, 0.0f, key, 128);
+  char values[128];
+  BLI_snprintf(values, sizeof(values), (value2) ? "%s / %s" : "%s", value1, value2);
+  BLF_draw_default(col2, *y, 0.0f, values, sizeof(values));
+}
+
+void ED_info_draw_stats(
+    Main *bmain, Scene *scene, ViewLayer *view_layer, int x, int *y, int height)
+{
+  SceneStatsFmt stats_fmt;
+  if (!format_stats(bmain, scene, view_layer, &stats_fmt)) {
+    return;
+  }
 
   Object *ob = OBACT(view_layer);
   Object *obedit = OBEDIT_FROM_OBACT(ob);

source/blender/gpu/intern/gpu_extensions.c

@@ -409,7 +409,7 @@ void gpu_extensions_exit(void)
 bool GPU_mem_stats_supported(void)
 {
 #ifndef GPU_STANDALONE
-  return (GLEW_NVX_gpu_memory_info || GLEW_ATI_meminfo) && (G.debug & G_DEBUG_GPU_MEM);
+  return (GLEW_NVX_gpu_memory_info || GLEW_ATI_meminfo);
 #else
   return false;
 #endif

source/blender/makesdna/DNA_layer_types.h

@@ -115,7 +115,6 @@ typedef struct ViewLayer {
   ListBase object_bases;
   /** Default allocated now. */
   struct SceneStats *stats;
-  char footer_str[128];
   struct Base *basact;
 
   /** A view layer has one top level layer collection, because a scene has only one top level

source/blender/makesdna/DNA_screen_types.h

@@ -69,6 +69,8 @@ typedef struct bScreen {
   /** User-setting for which editors get redrawn during anim playback. */
   short redraws_flag;
 
+  char statusbar_info[256];
+
   /** Temp screen in a temp window, don't save (like user prefs). */
   char temp;
   /** Temp screen for image render display or fileselect. */

source/blender/makesdna/DNA_userdef_types.h

@@ -880,7 +880,9 @@ typedef struct UserDef {
   char _pad5[2];
 
   float collection_instance_empty_size;
-  char _pad10[4];
+  char _pad10[3];
+
+  char statusbar_flag; /* eUserpref_StatusBar_Flag */
 
   struct WalkNavigation walk_navigation;
 
@@ -1079,6 +1081,14 @@ typedef enum eUserpref_APP_Flag {
   USER_APP_LOCK_UI_LAYOUT = (1 << 0),
 } eUserpref_APP_Flag;
 
+/** #UserDef.statusbar_flag */
+typedef enum eUserpref_StatusBar_Flag {
+  STATUSBAR_SHOW_MEMORY = (1 << 0),
+  STATUSBAR_SHOW_VRAM = (1 << 1),
+  STATUSBAR_SHOW_STATS = (1 << 2),
+  STATUSBAR_SHOW_VERSION = (1 << 3),
+} eUserpref_StatusBar_Flag;
+
 /**
  * Auto-Keying mode.
  * #UserDef.autokey_mode

source/blender/makesrna/intern/rna_scene.c

@@ -924,13 +924,6 @@ static void rna_Scene_volume_update(Main *UNUSED(bmain), Scene *UNUSED(scene), P
   DEG_id_tag_update(&scene->id, ID_RECALC_AUDIO_VOLUME | ID_RECALC_SEQUENCER_STRIPS);
 }
 
-static const char *rna_Scene_statistics_string_get(Scene *UNUSED(scene),
-                                                   Main *UNUSED(bmain),
-                                                   ViewLayer *view_layer)
-{
-  return ED_info_footer_string(view_layer);
-}
-
 static void rna_Scene_framelen_update(Main *UNUSED(bmain), Scene *scene, PointerRNA *UNUSED(ptr))
 {
   scene->r.framelen = (float)scene->r.framapto / (float)scene->r.images;
@@ -7275,9 +7268,6 @@ void RNA_def_scene(BlenderRNA *brna)
   StructRNA *srna;
   PropertyRNA *prop;
 
-  FunctionRNA *func;
-  PropertyRNA *parm;
-
   static const EnumPropertyItem audio_distance_model_items[] = {
       {0, "NONE", 0, "None", "No distance attenuation"},
       {1, "INVERSE", 0, "Inverse", "Inverse distance model"},
@@ -7669,14 +7659,6 @@ void RNA_def_scene(BlenderRNA *brna)
   RNA_def_property_update(prop, NC_SCENE, NULL);
   RNA_def_property_update(prop, NC_SCENE, "rna_Scene_volume_update");
 
-  /* Statistics */
-  func = RNA_def_function(srna, "statistics", "rna_Scene_statistics_string_get");
-  RNA_def_function_flag(func, FUNC_USE_MAIN);
-  parm = RNA_def_pointer(func, "view_layer", "ViewLayer", "", "Active layer");
-  RNA_def_parameter_flags(parm, PROP_NEVER_NULL, PARM_REQUIRED);
-  parm = RNA_def_string(func, "statistics", NULL, 0, "Statistics", "");
-  RNA_def_function_return(func, parm);
-
   /* Grease Pencil */
   prop = RNA_def_property(srna, "grease_pencil", PROP_POINTER, PROP_NONE);
   RNA_def_property_pointer_sdna(prop, NULL, "gpd");

source/blender/makesrna/intern/rna_screen.c

@@ -30,6 +30,8 @@
 #include "DNA_screen_types.h"
 #include "DNA_workspace_types.h"
 
+#include "ED_info.h"
+
 const EnumPropertyItem rna_enum_region_type_items[] = {
     {RGN_TYPE_WINDOW, "WINDOW", 0, "Window", ""},
     {RGN_TYPE_HEADER, "HEADER", 0, "Header", ""},
@@ -286,6 +288,11 @@ static void rna_View2D_view_to_region(
   }
 }
 
+static const char *rna_Screen_statusbar_info_get(struct bScreen *screen, Main *bmain, bContext *C)
+{
+  return ED_info_statusbar_string(bmain, screen, C);
+}
+
 #else
 
 /* Area.spaces */
@@ -536,6 +543,9 @@ static void rna_def_screen(BlenderRNA *brna)
   StructRNA *srna;
   PropertyRNA *prop;
 
+  FunctionRNA *func;
+  PropertyRNA *parm;
+
   srna = RNA_def_struct(brna, "Screen", "ID");
   RNA_def_struct_sdna(srna, "Screen"); /* it is actually bScreen but for 2.5 the dna is patched! */
   RNA_def_struct_ui_text(
@@ -570,11 +580,18 @@ static void rna_def_screen(BlenderRNA *brna)
   RNA_def_property_boolean_funcs(prop, "rna_Screen_fullscreen_get", NULL);
   RNA_def_property_ui_text(prop, "Maximize", "An area is maximized, filling this screen");
 
+  /* Status Bar. */
+
   prop = RNA_def_property(srna, "show_statusbar", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_negative_sdna(prop, NULL, "flag", SCREEN_COLLAPSE_STATUSBAR);
-  RNA_def_property_ui_text(prop, "Show Status Bar", "Show status bar");
+  RNA_def_property_ui_text(prop, "Show Status Bar", "Show Status Bar");
   RNA_def_property_update(prop, 0, "rna_Screen_bar_update");
 
+  func = RNA_def_function(srna, "statusbar_info", "rna_Screen_statusbar_info_get");
+  RNA_def_function_flag(func, FUNC_USE_MAIN | FUNC_USE_CONTEXT);
+  parm = RNA_def_string(func, "statusbar_info", NULL, 0, "Status Bar Info", "");
+  RNA_def_function_return(func, parm);
+
   /* Define Anim Playback Areas */
   prop = RNA_def_property(srna, "use_play_top_left_3d_editor", PROP_BOOLEAN, PROP_NONE);
   RNA_def_property_boolean_sdna(prop, NULL, "redraws_flag", TIME_REGION);

source/blender/makesrna/intern/rna_userdef.c

@@ -188,6 +188,7 @@ static const EnumPropertyItem rna_enum_userdef_viewport_aa_items[] = {
 #  include "DEG_depsgraph.h"
 
 #  include "GPU_draw.h"
+#  include "GPU_extensions.h"
 #  include "GPU_select.h"
 
 #  include "BLF_api.h"
@@ -1066,6 +1067,11 @@ static void rna_UserDef_studiolight_light_ambient_get(PointerRNA *ptr, float *va
   copy_v3_v3(values, sl->light_ambient);
 }
 
+int rna_show_statusbar_vram_editable(struct PointerRNA *UNUSED(ptr), const char **UNUSED(r_info))
+{
+  return GPU_mem_stats_supported() ? PROP_EDITABLE : 0;
+}
+
 #else
 
 #  define USERDEF_TAG_DIRTY_PROPERTY_UPDATE_ENABLE \
@@ -4771,6 +4777,29 @@ static void rna_def_userdef_view(BlenderRNA *brna)
                            "Translate New Names",
                            "Translate the names of new data-blocks (objects, materials...)");
   RNA_def_property_update(prop, 0, "rna_userdef_update");
+
+  /* Statusbar. */
+
+  prop = RNA_def_property(srna, "show_statusbar_memory", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "statusbar_flag", STATUSBAR_SHOW_MEMORY);
+  RNA_def_property_ui_text(prop, "Show Memory", "Show Blender memory usage");
+  RNA_def_property_update(prop, NC_SPACE | ND_SPACE_INFO, "rna_userdef_update");
+
+  prop = RNA_def_property(srna, "show_statusbar_vram", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "statusbar_flag", STATUSBAR_SHOW_VRAM);
+  RNA_def_property_ui_text(prop, "Show VRAM", "Show GPU video memory usage");
+  RNA_def_property_editable_func(prop, "rna_show_statusbar_vram_editable");
+  RNA_def_property_update(prop, NC_SPACE | ND_SPACE_INFO, "rna_userdef_update");
+
+  prop = RNA_def_property(srna, "show_statusbar_version", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "statusbar_flag", STATUSBAR_SHOW_VERSION);
+  RNA_def_property_ui_text(prop, "Show Version", "Show Blender version string");
+  RNA_def_property_update(prop, NC_SPACE | ND_SPACE_INFO, "rna_userdef_update");
+
+  prop = RNA_def_property(srna, "show_statusbar_stats", PROP_BOOLEAN, PROP_NONE);
+  RNA_def_property_boolean_sdna(prop, NULL, "statusbar_flag", STATUSBAR_SHOW_STATS);
+  RNA_def_property_ui_text(prop, "Show Statistics", "Show scene statistics");
+  RNA_def_property_update(prop, NC_SPACE | ND_SPACE_INFO, "rna_userdef_update");
 }
 
 static void rna_def_userdef_edit(BlenderRNA *brna)