New operator for action and graph editor that centers around current

scene frame, bound to numberpad zero.

release/scripts/startup/bl_ui/space_dopesheet.py

@@ -203,6 +203,7 @@ class DOPESHEET_MT_view(Menu):
         layout.separator()
         layout.operator("action.view_all")
         layout.operator("action.view_selected")
+        layout.operator("action.view_frame")
 
         layout.separator()
         layout.operator("screen.area_dupli")

release/scripts/startup/bl_ui/space_graph.py

@@ -125,6 +125,7 @@ class GRAPH_MT_view(Menu):
         layout.separator()
         layout.operator("graph.view_all")
         layout.operator("graph.view_selected")
+        layout.operator("graph.view_frame")
 
         layout.separator()
         layout.operator("screen.area_dupli")

source/blender/editors/include/UI_view2d.h

@@ -233,7 +233,7 @@ void ED_keymap_view2d(struct wmKeyConfig *keyconf);
 
 void UI_view2d_smooth_view(struct bContext *C, struct ARegion *ar,
                            const struct rctf *cur, const int smooth_viewtx);
-
+void UI_view2d_center_frame(struct bContext *C, int smooth_viewtx);
 #define UI_MARKER_MARGIN_Y (42 * UI_DPI_FAC)
 
 #endif /* __UI_VIEW2D_H__ */

source/blender/editors/interface/view2d_ops.c

@@ -1462,6 +1462,21 @@ void UI_view2d_smooth_view(bContext *C, ARegion *ar,
 	}
 }
 
+void UI_view2d_center_frame(struct bContext *C, int smooth_viewtx)
+{
+	ARegion *ar = CTX_wm_region(C);
+	Scene *scene = CTX_data_scene(C);
+	float w = BLI_rctf_size_x(&ar->v2d.cur);
+	rctf newrct;
+
+	newrct.xmax = scene->r.cfra + (w / 2);
+	newrct.xmin = scene->r.cfra - (w / 2);
+	newrct.ymax = ar->v2d.cur.ymax;
+	newrct.ymin = ar->v2d.cur.ymin;
+
+	UI_view2d_smooth_view(C, ar, &newrct, smooth_viewtx);
+}
+
 /* only meant for timer usage */
 static int view2d_smoothview_invoke(bContext *C, wmOperator *UNUSED(op), const wmEvent *event)
 {

source/blender/editors/space_action/action_edit.c

@@ -426,6 +426,14 @@ static int actkeys_viewsel_exec(bContext *C, wmOperator *UNUSED(op))
 	return actkeys_viewall(C, true);
 }
 
+static int actkeys_view_frame_exec(bContext *C, wmOperator *op)
+{
+	const int smooth_viewtx = WM_operator_smooth_viewtx_get(op);
+	UI_view2d_center_frame(C, smooth_viewtx);
+
+	return OPERATOR_FINISHED;
+}
+
 void ACTION_OT_view_all(wmOperatorType *ot)
 {
 	/* identifiers */
@@ -456,6 +464,21 @@ void ACTION_OT_view_selected(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
+void ACTION_OT_view_frame(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "View Frame";
+	ot->idname = "ACTION_OT_view_frame";
+	ot->description = "Reset viewable area to show range around current frame";
+
+	/* api callbacks */
+	ot->exec = actkeys_view_frame_exec;
+	ot->poll = ED_operator_action_active; /* XXX: unchecked poll to get fsamples working too, but makes modifier damage trickier... */
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
 /* ************************************************************************** */
 /* GENERAL STUFF */
 

source/blender/editors/space_action/action_intern.h

@@ -77,6 +77,7 @@ enum eActKeys_ColumnSelect_Mode {
 void ACTION_OT_previewrange_set(struct wmOperatorType *ot);
 void ACTION_OT_view_all(struct wmOperatorType *ot);
 void ACTION_OT_view_selected(struct wmOperatorType *ot);
+void ACTION_OT_view_frame(struct wmOperatorType *ot);
 
 void ACTION_OT_copy(struct wmOperatorType *ot);
 void ACTION_OT_paste(struct wmOperatorType *ot);

source/blender/editors/space_action/action_ops.c

@@ -91,6 +91,7 @@ void action_operatortypes(void)
 	WM_operatortype_append(ACTION_OT_previewrange_set);
 	WM_operatortype_append(ACTION_OT_view_all);
 	WM_operatortype_append(ACTION_OT_view_selected);
+	WM_operatortype_append(ACTION_OT_view_frame);
 
 	WM_operatortype_append(ACTION_OT_markers_make_local);
 }
@@ -228,6 +229,8 @@ static void action_keymap_keyframes(wmKeyConfig *keyconf, wmKeyMap *keymap)
 	WM_keymap_add_item(keymap, "ACTION_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "ACTION_OT_view_all", NDOF_BUTTON_FIT, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "ACTION_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
+	WM_keymap_add_item(keymap, "ACTION_OT_view_frame", PAD0, KM_PRESS, 0, 0);
+
 	
 	/* animation module */
 	/* channels list

source/blender/editors/space_graph/graph_edit.c

@@ -256,6 +256,14 @@ static int graphkeys_view_selected_exec(bContext *C, wmOperator *op)
 	return graphkeys_viewall(C, true, include_handles, smooth_viewtx);
 }
 
+static int graphkeys_view_frame_exec(bContext *C, wmOperator *op)
+{
+	const int smooth_viewtx = WM_operator_smooth_viewtx_get(op);
+	UI_view2d_center_frame(C, smooth_viewtx);
+	return OPERATOR_FINISHED;
+}
+
+
 void GRAPH_OT_view_all(wmOperatorType *ot)
 {
 	/* identifiers */
@@ -294,6 +302,21 @@ void GRAPH_OT_view_selected(wmOperatorType *ot)
 	                           "Include handles of keyframes when calculating extents");
 }
 
+void GRAPH_OT_view_frame(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "View Frame";
+	ot->idname = "GRAPH_OT_view_frame";
+	ot->description = "Reset viewable area to show range around current frame";
+
+	/* api callbacks */
+	ot->exec = graphkeys_view_frame_exec;
+	ot->poll = ED_operator_graphedit_active; /* XXX: unchecked poll to get fsamples working too, but makes modifier damage trickier... */
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
+
 /* ******************** Create Ghost-Curves Operator *********************** */
 /* This operator samples the data of the selected F-Curves to F-Points, storing them
  * as 'ghost curves' in the active Graph Editor

source/blender/editors/space_graph/graph_intern.h

@@ -91,6 +91,7 @@ void get_graph_keyframe_extents(struct bAnimContext *ac, float *xmin, float *xma
 void GRAPH_OT_previewrange_set(struct wmOperatorType *ot);
 void GRAPH_OT_view_all(struct wmOperatorType *ot);
 void GRAPH_OT_view_selected(struct wmOperatorType *ot);
+void GRAPH_OT_view_frame(struct wmOperatorType *ot);
 
 void GRAPH_OT_click_insert(struct wmOperatorType *ot);
 void GRAPH_OT_keyframe_insert(struct wmOperatorType *ot);

source/blender/editors/space_graph/graph_ops.c

@@ -380,6 +380,7 @@ void graphedit_operatortypes(void)
 	WM_operatortype_append(GRAPH_OT_view_all);
 	WM_operatortype_append(GRAPH_OT_view_selected);
 	WM_operatortype_append(GRAPH_OT_properties);
+	WM_operatortype_append(GRAPH_OT_view_frame);
 	
 	WM_operatortype_append(GRAPH_OT_ghost_curves_create);
 	WM_operatortype_append(GRAPH_OT_ghost_curves_clear);
@@ -594,6 +595,7 @@ static void graphedit_keymap_keyframes(wmKeyConfig *keyconf, wmKeyMap *keymap)
 	WM_keymap_add_item(keymap, "GRAPH_OT_view_all", HOMEKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "GRAPH_OT_view_all", NDOF_BUTTON_FIT, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "GRAPH_OT_view_selected", PADPERIOD, KM_PRESS, 0, 0);
+	WM_keymap_add_item(keymap, "GRAPH_OT_view_frame", PAD0, KM_PRESS, 0, 0);
 
 	/* F-Modifiers */
 	kmi = WM_keymap_add_item(keymap, "GRAPH_OT_fmodifier_add", MKEY, KM_PRESS, KM_CTRL | KM_SHIFT, 0);