VSE: Add precise drag and drop and strip previews

This patch adds the drag and drop strip previews in the VSE.
It also adds two new functions to the drag and drop API.

1. "draw_in_view" for callbacks that wants to draw elements in local viewport coordinates
2. "on_drag_start" that can be used for prefetching data only once at the start of the drag.

Reviewed By: Julian, Campbell

Differential Revision: http://developer.blender.org/D14560

1 files changed, 0 insertions, 131 deletions

diff --git a/source/blender/editors/space_sequencer/space_sequencer.c b/source/blender/editors/space_sequencer/space_sequencer.c
index 89bff839481..ed669f5f8d2 100644
--- a/source/blender/editors/space_sequencer/space_sequencer.c
+++ b/source/blender/editors/space_sequencer/space_sequencer.c
@@ -9,20 +9,15 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "DNA_gpencil_types.h"
 #include "DNA_mask_types.h"
 #include "DNA_scene_types.h"
-#include "DNA_sound_types.h"
 
 #include "MEM_guardedalloc.h"
 
 #include "BLI_blenlib.h"
 #include "BLI_ghash.h"
-#include "BLI_utildefines.h"
 
-#include "BKE_context.h"
 #include "BKE_global.h"
-#include "BKE_lib_id.h"
 #include "BKE_lib_remap.h"
 #include "BKE_screen.h"
 #include "BKE_sequencer_offscreen.h"
@@ -37,15 +32,11 @@
 
 #include "WM_api.h"
 #include "WM_message.h"
-#include "WM_types.h"
-
-#include "RNA_access.h"
 
 #include "SEQ_transform.h"
 #include "SEQ_utils.h"
 
 #include "UI_interface.h"
-#include "UI_resources.h"
 #include "UI_view2d.h"
 
 #include "IMB_imbuf.h"
@@ -404,128 +395,6 @@ static void sequencer_listener(const wmSpaceTypeListenerParams *params)
   }
 }
 
-/* ************* dropboxes ************* */
-
-static bool image_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event)
-{
-  ARegion *region = CTX_wm_region(C);
-  Scene *scene = CTX_data_scene(C);
-  int hand;
-
-  if (drag->type == WM_DRAG_PATH) {
-    if (ELEM(drag->icon, ICON_FILE_IMAGE, ICON_FILE_BLANK)) { /* Rule might not work? */
-      if (find_nearest_seq(scene, &region->v2d, &hand, event->mval) == NULL) {
-        return 1;
-      }
-    }
-  }
-
-  return WM_drag_is_ID_type(drag, ID_IM);
-}
-
-static bool movie_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event)
-{
-  ARegion *region = CTX_wm_region(C);
-  Scene *scene = CTX_data_scene(C);
-  int hand;
-
-  if (drag->type == WM_DRAG_PATH) {
-    if (ELEM(drag->icon, 0, ICON_FILE_MOVIE, ICON_FILE_BLANK)) { /* Rule might not work? */
-      if (find_nearest_seq(scene, &region->v2d, &hand, event->mval) == NULL) {
-        return 1;
-      }
-    }
-  }
-
-  return WM_drag_is_ID_type(drag, ID_MC);
-}
-
-static bool sound_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event)
-{
-  ARegion *region = CTX_wm_region(C);
-  Scene *scene = CTX_data_scene(C);
-  int hand;
-
-  if (drag->type == WM_DRAG_PATH) {
-    if (ELEM(drag->icon, ICON_FILE_SOUND, ICON_FILE_BLANK)) { /* Rule might not work? */
-      if (find_nearest_seq(scene, &region->v2d, &hand, event->mval) == NULL) {
-        return 1;
-      }
-    }
-  }
-
-  return WM_drag_is_ID_type(drag, ID_SO);
-}
-
-static void sequencer_drop_copy(wmDrag *drag, wmDropBox *drop)
-{
-  ID *id = WM_drag_get_local_ID_or_import_from_asset(drag, 0);
-  /* ID dropped. */
-  if (id != NULL) {
-    const ID_Type id_type = GS(id->name);
-    if (id_type == ID_IM) {
-      Image *ima = (Image *)id;
-      PointerRNA itemptr;
-      char dir[FILE_MAX], file[FILE_MAX];
-      BLI_split_dirfile(ima->filepath, dir, file, sizeof(dir), sizeof(file));
-      RNA_string_set(drop->ptr, "directory", dir);
-      RNA_collection_clear(drop->ptr, "files");
-      RNA_collection_add(drop->ptr, "files", &itemptr);
-      RNA_string_set(&itemptr, "name", file);
-    }
-    else if (id_type == ID_MC) {
-      MovieClip *clip = (MovieClip *)id;
-      RNA_string_set(drop->ptr, "filepath", clip->filepath);
-      RNA_struct_property_unset(drop->ptr, "name");
-    }
-    else if (id_type == ID_SO) {
-      bSound *sound = (bSound *)id;
-      RNA_string_set(drop->ptr, "filepath", sound->filepath);
-      RNA_struct_property_unset(drop->ptr, "name");
-    }
-  }
-  /* Path dropped. */
-  else if (drag->path[0]) {
-    if (RNA_struct_find_property(drop->ptr, "filepath")) {
-      RNA_string_set(drop->ptr, "filepath", drag->path);
-    }
-    if (RNA_struct_find_property(drop->ptr, "directory")) {
-      PointerRNA itemptr;
-      char dir[FILE_MAX], file[FILE_MAX];
-
-      BLI_split_dirfile(drag->path, dir, file, sizeof(dir), sizeof(file));
-
-      RNA_string_set(drop->ptr, "directory", dir);
-
-      RNA_collection_clear(drop->ptr, "files");
-      RNA_collection_add(drop->ptr, "files", &itemptr);
-      RNA_string_set(&itemptr, "name", file);
-    }
-  }
-}
-
-/* This region dropbox definition. */
-
-static void sequencer_dropboxes_add_to_lb(ListBase *lb)
-{
-  WM_dropbox_add(
-      lb, "SEQUENCER_OT_image_strip_add", image_drop_poll, sequencer_drop_copy, NULL, NULL);
-  WM_dropbox_add(
-      lb, "SEQUENCER_OT_movie_strip_add", movie_drop_poll, sequencer_drop_copy, NULL, NULL);
-  WM_dropbox_add(
-      lb, "SEQUENCER_OT_sound_strip_add", sound_drop_poll, sequencer_drop_copy, NULL, NULL);
-}
-
-static void sequencer_dropboxes(void)
-{
-  ListBase *lb = WM_dropboxmap_find("Sequencer", SPACE_SEQ, RGN_TYPE_WINDOW);
-  sequencer_dropboxes_add_to_lb(lb);
-  lb = WM_dropboxmap_find("Sequencer", SPACE_SEQ, RGN_TYPE_PREVIEW);
-  sequencer_dropboxes_add_to_lb(lb);
-}
-
-/* ************* end drop *********** */
-
 /* DO NOT make this static, this hides the symbol and breaks API generation script. */
 extern const char *sequencer_context_dir[]; /* Quiet warning. */
 const char *sequencer_context_dir[] = {"edit_mask", NULL};