Blender file selector support for setting multiple selected files/dirs which operators can use.

This allows the sequencers Add-Image strip to work like it does in 2.4x.

- as well as setting the "filename" operator property, operators can have collections called "files" and "dirs" which are set when available.
- RNA_OperatorFileListElement as new collection type, its a bit redundant since each item only has a "name" property but its needed since we don't have a string array type.
- the file selector now prints operators it runs.

Tested with python, adding a list of images works to the sequencer works.
bpy.ops.SEQUENCER_OT_image_strip_add(name="MyImages", start_frame=54, channel=2, filename="/somedir/", replace_sel=True, files=[{"name":"test1.png"}, {"name":"test2.png"}])

2 files changed, 48 insertions, 14 deletions

diff --git a/source/blender/editors/space_file/file_ops.c b/source/blender/editors/space_file/file_ops.c
index 94c023207f5..01f94741f59 100644
--- a/source/blender/editors/space_file/file_ops.c
+++ b/source/blender/editors/space_file/file_ops.c
@@ -480,6 +480,36 @@ int file_exec(bContext *C, wmOperator *unused)
 		strcat(name, sfile->params->file);
 		RNA_string_set(op->ptr, "filename", name);
 		
+		/* some ops have multiple files to select */
+		{
+			PointerRNA itemptr;
+			int i, numfiles = filelist_numfiles(sfile->files);
+			struct direntry *file;
+			if(RNA_struct_find_property(op->ptr, "files")) {
+				for (i=0; i<numfiles; i++) {
+					file = filelist_file(sfile->files, i);
+					if(file->flags & ACTIVE) {
+						if ((file->type & S_IFDIR)==0) {
+							RNA_collection_add(op->ptr, "files", &itemptr);
+							RNA_string_set(&itemptr, "name", file->relname);
+						}
+					}
+				}
+			}
+			
+			if(RNA_struct_find_property(op->ptr, "dirs")) {
+				for (i=0; i<numfiles; i++) {
+					file = filelist_file(sfile->files, i);
+					if(file->flags & ACTIVE) {
+						if ((file->type & S_IFDIR)) {
+							RNA_collection_add(op->ptr, "dirs", &itemptr);
+							RNA_string_set(&itemptr, "name", file->relname);
+						}
+					}
+				}
+			}
+		}
+		
 		fsmenu_insert_entry(fsmenu_get(), FS_CATEGORY_RECENT, sfile->params->dir,0, 1);
 		BLI_make_file_string(G.sce, name, BLI_gethome(), ".Bfs");
 		fsmenu_write_file(fsmenu_get(), name);
diff --git a/source/blender/editors/space_sequencer/sequencer_add.c b/source/blender/editors/space_sequencer/sequencer_add.c
index 6e38ff053be..8373f588fb2 100644
--- a/source/blender/editors/space_sequencer/sequencer_add.c
+++ b/source/blender/editors/space_sequencer/sequencer_add.c
@@ -423,9 +423,7 @@ static int sequencer_add_image_strip_exec(bContext *C, wmOperator *op)
 	Scene *scene= CTX_data_scene(C);
 	Editing *ed= seq_give_editing(scene, TRUE);
 
-
-	int tot_images= 1; //XXX FIXME, we need string arrays!
-	//int a;
+	int tot_images;
 
 	char filename[FILE_MAX];
 
@@ -440,26 +438,30 @@ static int sequencer_add_image_strip_exec(bContext *C, wmOperator *op)
 	
 	RNA_string_get(op->ptr, "filename", filename);
 
-	seq = alloc_sequence(ed->seqbasep, start_frame, channel);
-	
+	seq = alloc_sequence(ed->seqbasep, start_frame, channel);	
 	seq->type= SEQ_IMAGE;
 	
 	/* basic defaults */
 	seq->strip= strip= MEM_callocN(sizeof(Strip), "strip");
-	strip->len = seq->len = tot_images;	
+	BLI_split_dirfile_basic(filename, strip->dir, NULL);
+	
+	tot_images= RNA_property_collection_length(op->ptr, RNA_struct_find_property(op->ptr, "files"));
+	
+	strip->len = seq->len = tot_images?tot_images:1;
 	strip->us= 1;
 	
 	strip->stripdata= se= MEM_callocN(seq->len*sizeof(StripElem), "stripelem");
 	
-
-	BLI_split_dirfile_basic(filename, strip->dir, se->name); // XXX se->name assignment should be moved into the loop below
-
-#if 0 // XXX
-	for(a=0; a<seq->len; a++) {
-	   strncpy(se->name, name, FILE_MAXFILE-1);
-	   se++;
+	if(tot_images) {
+		RNA_BEGIN(op->ptr, itemptr, "files") {
+			RNA_string_get(&itemptr, "name", se->name);
+			se++;
+		}
+		RNA_END;
+	}
+	else {
+		BLI_split_dirfile_basic(filename, NULL, se->name);
 	}
-#endif
 
 	RNA_string_get(op->ptr, "name", seq->name);
 	
@@ -507,6 +509,8 @@ void SEQUENCER_OT_image_strip_add(struct wmOperatorType *ot)
 	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
 	
 	sequencer_generic_props__internal(ot, SEQPROP_STARTFRAME|SEQPROP_FILENAME);
+	
+	RNA_def_collection_runtime(ot->srna, "files", &RNA_OperatorFileListElement, "Files", "");
 }