2.5: Added basic insert/remove keyframes from UI buttons.

- I key over a button inserts a keyframe.
- Alt+I removes a keyframe.
- With right mouse button a menu with these options pops up.
- Buttons are colored green if the property is animated, yellow
  if it is on a keyframe. I followed the colors from the UI
  mockups, but the flicker on keyframes seems too distracting in
  practice?

- This only works for properties on the ID itself at the moment,
  path callbacks need to be filled in for all structs but mesh
  still.
- It doesn't work when you're over a related label, that needs to
  be made to work.
- I made it insert keyframes outside of any keyingset. Not sure
  how this is supposed to integrate?

1 files changed, 121 insertions, 0 deletions

diff --git a/source/blender/editors/interface/interface_anim.c b/source/blender/editors/interface/interface_anim.c
new file mode 100644
index 00000000000..75fe8331184
--- /dev/null
+++ b/source/blender/editors/interface/interface_anim.c
@@ -0,0 +1,121 @@
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_anim_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+
+#include "BLI_listbase.h"
+
+#include "BKE_animsys.h"
+#include "BKE_context.h"
+#include "BKE_fcurve.h"
+
+#include "RNA_access.h"
+#include "RNA_types.h"
+
+#include "UI_interface.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "interface_intern.h"
+
+void ui_but_anim_flag(uiBut *but, float cfra)
+{
+	but->flag &= ~(UI_BUT_ANIMATED|UI_BUT_ANIMATED_KEY);
+
+	if(but->rnaprop && but->rnapoin.id.data) {
+		AnimData *adt= BKE_animdata_from_id(but->rnapoin.id.data);
+		FCurve *fcu;
+		char *path;
+
+		if(adt && adt->action && adt->action->curves.first) {
+			/* XXX this function call can become a performance bottleneck */
+			path= RNA_path_from_ID_to_property(&but->rnapoin, but->rnaprop);
+
+			if(path) {
+				fcu= list_find_fcurve(&adt->action->curves, path, but->rnaindex);
+
+				if(fcu) {
+					but->flag |= UI_BUT_ANIMATED;
+
+					if(on_keyframe_fcurve(fcu, cfra))
+						but->flag |= UI_BUT_ANIMATED_KEY;
+				}
+
+				MEM_freeN(path);
+			}
+		}
+	}
+}
+
+void uiAnimContextProperty(const bContext *C, struct PointerRNA *ptr, struct PropertyRNA **prop, int *index)
+{
+	ARegion *ar= CTX_wm_region(C);
+	uiBlock *block;
+	uiBut *but;
+
+	if(ar) {
+		for(block=ar->uiblocks.first; block; block=block->next) {
+			for(but=block->buttons.first; but; but= but->next) {
+				if(but->active && but->rnapoin.id.data) {
+					*ptr= but->rnapoin;
+					*prop= but->rnaprop;
+					*index= but->rnaindex;
+					return;
+				}
+			}
+		}
+	}
+}
+
+void ui_but_anim_insert_keyframe(bContext *C)
+{
+	/* this operator calls uiAnimContextProperty above */
+	WM_operator_name_call(C, "ANIM_OT_insert_keyframe_button", WM_OP_INVOKE_DEFAULT, NULL);
+}
+
+void ui_but_anim_delete_keyframe(bContext *C)
+{
+	/* this operator calls uiAnimContextProperty above */
+	WM_operator_name_call(C, "ANIM_OT_delete_keyframe_button", WM_OP_INVOKE_DEFAULT, NULL);
+}
+
+void ui_but_anim_menu(bContext *C, uiBut *but)
+{
+	uiMenuItem *head;
+	int length;
+
+	if(but->rnapoin.data && but->rnaprop) {
+		head= uiPupMenuBegin(RNA_property_ui_name(&but->rnapoin, but->rnaprop), 0);
+
+		length= RNA_property_array_length(&but->rnapoin, but->rnaprop);
+
+		if(but->flag & UI_BUT_ANIMATED_KEY) {
+			if(length) {
+				uiMenuItemBooleanO(head, "Delete Keyframes", 0, "ANIM_OT_delete_keyframe_button", "all", 1);
+				uiMenuItemBooleanO(head, "Delete Single Keyframe", 0, "ANIM_OT_delete_keyframe_button", "all", 0);
+			}
+			else {
+				uiMenuItemBooleanO(head, "Delete Keyframe", 0, "ANIM_OT_delete_keyframe_button", "all", 0);
+			}
+		}
+		else if(RNA_property_animateable(&but->rnapoin, but->rnaprop)) {
+			if(length) {
+				uiMenuItemBooleanO(head, "Insert Keyframes", 0, "ANIM_OT_insert_keyframe_button", "all", 1);
+				uiMenuItemBooleanO(head, "Insert Single Keyframe", 0, "ANIM_OT_insert_keyframe_button", "all", 0);
+			}
+			else {
+				uiMenuItemBooleanO(head, "Insert Keyframe", 0, "ANIM_OT_insert_keyframe_button", "all", 0);
+			}
+		}
+
+		uiPupMenuEnd(C, head);
+	}
+}
+