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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup bke
*
* Used for copy/paste operator, (using a temporary file).
*/
#include <stdlib.h>
#include "MEM_guardedalloc.h"
#include "DNA_scene_types.h"
#include "DNA_screen_types.h"
#include "DNA_userdef_types.h"
#include "DNA_view3d_types.h"
#include "DNA_windowmanager_types.h"
#include "BLI_blenlib.h"
#include "BLI_utildefines.h"
#include "IMB_imbuf.h"
#include "IMB_moviecache.h"
#include "BKE_blender_copybuffer.h" /* own include */
#include "BKE_blendfile.h"
#include "BKE_blendfile_link_append.h"
#include "BKE_context.h"
#include "BKE_global.h"
#include "BKE_layer.h"
#include "BKE_lib_id.h"
#include "BKE_main.h"
#include "BKE_scene.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_build.h"
#include "BLO_readfile.h"
#include "BLO_writefile.h"
#include "IMB_colormanagement.h"
/* -------------------------------------------------------------------- */
/** \name Copy/Paste `.blend`, partial saves.
* \{ */
/** Initialize a copy operation. */
void BKE_copybuffer_copy_begin(Main *bmain_src)
{
BKE_blendfile_write_partial_begin(bmain_src);
}
/** Mark an ID to be copied. Should only be called after a call to #BKE_copybuffer_copy_begin. */
void BKE_copybuffer_copy_tag_ID(ID *id)
{
BKE_blendfile_write_partial_tag_ID(id, true);
}
/**
* Finalize a copy operation into given .blend file 'buffer'.
*
* \param filename: Full path to the .blend file used as copy/paste buffer.
*
* \return true on success, false otherwise.
*/
bool BKE_copybuffer_copy_end(Main *bmain_src, const char *filename, ReportList *reports)
{
const int write_flags = 0;
const eBLO_WritePathRemap remap_mode = BLO_WRITE_PATH_REMAP_RELATIVE;
bool retval = BKE_blendfile_write_partial(bmain_src, filename, write_flags, remap_mode, reports);
BKE_blendfile_write_partial_end(bmain_src);
return retval;
}
/* Common helper for paste functions. */
static void copybuffer_append(BlendfileLinkAppendContext *lapp_context,
Main *bmain,
ReportList *reports)
{
/* Tag existing IDs in given `bmain_dst` as already existing. */
BKE_main_id_tag_all(bmain, LIB_TAG_PRE_EXISTING, true);
BKE_blendfile_link(lapp_context, reports);
/* Mark all library linked objects to be updated. */
BKE_main_lib_objects_recalc_all(bmain);
IMB_colormanagement_check_file_config(bmain);
/* Append, rather than linking */
BKE_blendfile_append(lapp_context, reports);
/* This must be unset, otherwise these object won't link into other scenes from this blend
* file. */
BKE_main_id_tag_all(bmain, LIB_TAG_PRE_EXISTING, false);
/* Recreate dependency graph to include new objects. */
DEG_relations_tag_update(bmain);
}
/**
* Paste datablocks from the given .blend file 'buffer' (i.e. append them).
*
* Unlike #BKE_copybuffer_paste, it does not perform any instantiation of collections/objects/etc.
*
* \param libname: Full path to the .blend file used as copy/paste buffer.
* \param id_types_mask: Only directly link IDs of those types from the given .blend file buffer.
*
* \return true on success, false otherwise.
*/
bool BKE_copybuffer_read(Main *bmain_dst,
const char *libname,
ReportList *reports,
const uint64_t id_types_mask)
{
/* Note: No recursive append here (no `BLO_LIBLINK_APPEND_RECURSIVE`), external linked data
* should remain linked. */
const int flag = 0;
const int id_tag_extra = 0;
struct LibraryLink_Params liblink_params;
BLO_library_link_params_init(&liblink_params, bmain_dst, flag, id_tag_extra);
BlendfileLinkAppendContext *lapp_context = BKE_blendfile_link_append_context_new(
&liblink_params);
BKE_blendfile_link_append_context_library_add(lapp_context, libname, NULL);
const int num_pasted = BKE_blendfile_link_append_context_item_idtypes_from_library_add(
lapp_context, reports, id_types_mask, 0);
if (num_pasted == BLENDFILE_LINK_APPEND_INVALID) {
BKE_blendfile_link_append_context_free(lapp_context);
return false;
}
copybuffer_append(lapp_context, bmain_dst, reports);
BKE_blendfile_link_append_context_free(lapp_context);
return true;
}
/**
* Paste datablocks from the given .blend file 'buffer' (i.e. append them).
*
* Similar to #BKE_copybuffer_read, but also handles instantiation of collections/objects/etc.
*
* \param libname: Full path to the .blend file used as copy/paste buffer.
* \param flag: A combination of #eBLOLibLinkFlags and ##eFileSel_Params_Flag to control
* link/append behavior.
* \note: Ignores #FILE_LINK flag, since it always appends IDs.
* \param id_types_mask: Only directly link IDs of those types from the given .blend file buffer.
*
* \return Number of IDs directly pasted from the buffer (does not includes indirectly linked
* ones).
*/
int BKE_copybuffer_paste(bContext *C,
const char *libname,
const int flag,
ReportList *reports,
const uint64_t id_types_mask)
{
Main *bmain = CTX_data_main(C);
Scene *scene = CTX_data_scene(C);
ViewLayer *view_layer = CTX_data_view_layer(C);
View3D *v3d = CTX_wm_view3d(C); /* may be NULL. */
const int id_tag_extra = 0;
/* Note: No recursive append here, external linked data should remain linked. */
BLI_assert((flag & BLO_LIBLINK_APPEND_RECURSIVE) == 0);
struct LibraryLink_Params liblink_params;
BLO_library_link_params_init_with_context(
&liblink_params, bmain, flag, id_tag_extra, scene, view_layer, v3d);
BlendfileLinkAppendContext *lapp_context = BKE_blendfile_link_append_context_new(
&liblink_params);
BKE_blendfile_link_append_context_library_add(lapp_context, libname, NULL);
const int num_pasted = BKE_blendfile_link_append_context_item_idtypes_from_library_add(
lapp_context, reports, id_types_mask, 0);
if (num_pasted == BLENDFILE_LINK_APPEND_INVALID) {
BKE_blendfile_link_append_context_free(lapp_context);
return 0;
}
BKE_view_layer_base_deselect_all(view_layer);
copybuffer_append(lapp_context, bmain, reports);
BKE_blendfile_link_append_context_free(lapp_context);
return num_pasted;
}
/** \} */
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