Files
oak-editor/include/node/project.h
T
Mike-Solar d77348ad9f refactor(node): de-Qt oaknode and wrap it in a pure C ABI
- copy engine/node (188 files) to src/node/src, de-Qt in waves:
  core infra (Node/Param/Value/Variant/mathtypes), project/serializer,
  block/output, color, effect leaves, generator, gizmo/plugins
- strip QObject/signals/slots: notifications move to the facade's
  oakengine_event channel, ownership becomes explicit (unique_ptr,
  add_keyframe/add_gizmo), sender() replaced by current_gizmo
- QVariant replaced by olive::Variant, Qt math types by POD mathtypes,
  QXmlStreamReader/Writer by oakcommon's expat-based classes
- sink VideoParams/SubtitleParams/LoopMode/ColorTransform to oakcommon
  (M3.5); polygon/text rasterization behind backend hooks
- pure C ABI in include/node + src/node/c_api (oaknode_ prefix,
  OAKNODE_E_* codes, undoable variants take OakUndoCommand out-params)
- fix Project::clear() root_ reset + disconnect assert, Sequence
  TrackList leak
- 96 gtest cases green in standalone build (build-oaknode)
- docs: signal/slot handling strategy + M3 implementation status
2026-08-05 23:55:54 +08:00

238 lines
7.3 KiB
C

/***
Oak Video Editor - Non-Linear Video Editor
Copyright (C) 2026 Oak Team
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 3 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, see <http://www.gnu.org/licenses/>.
***/
#ifndef OAK_EDITOR_NODE_PROJECT_H
#define OAK_EDITOR_NODE_PROJECT_H
#include "node/error.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file project.h
* @brief C ABI for olive::Project (oaknode)
*
* An OakNodeProject owns its whole node graph: nodes added with
* oaknode_project_add_node() (directly, or indirectly through the folder and
* footage families) are deleted by oaknode_project_free(). Handles to nodes,
* folders and footage obtained from a project are borrowed views and must not
* be freed.
*
* Conventions (shared by all oaknode C API families):
* - Return codes: 0 (OAKNODE_OK) on success, a negative OAKNODE_E_* code on
* failure.
* - String getters are two-stage: pass buf == NULL (or a short buffer) to
* query the required size; the return value is the required buffer size in
* bytes INCLUDING the terminating NUL. The output is NUL-terminated
* whenever buf_size > 0.
* - NULL handles yield OAKNODE_E_INVALID (or a no-op for free()).
* - Disk save/load of project files is NOT part of this layer; it belongs to
* oakstorage (milestone M10).
*/
/**
* @brief Opaque project handle. Owned by the caller; release with
* oaknode_project_free().
*/
typedef struct OakNodeProject OakNodeProject;
/**
* @brief Opaque node handle (defined by the node family; forward-declared
* here so the headers can be included in any order).
*/
typedef struct OakNodeNode OakNodeNode;
/**
* @brief Opaque folder handle (defined in node/folder.h; forward-declared
* here so the headers can be included in any order). Borrowed from the
* owning project.
*/
typedef struct OakNodeFolder OakNodeFolder;
/**
* @brief Create an empty project shell.
*
* The project has no root folder until oaknode_project_initialize() is
* called (mirrors Project::initialize()).
*
* @return Project handle, or NULL on allocation failure.
*/
OakNodeProject *oaknode_project_init(void);
/**
* @brief Destroy a project and every node it owns. NULL is a no-op.
*/
void oaknode_project_free(OakNodeProject *project);
/**
* @brief Initialize the project: create the root folder (Project::initialize()).
*
* @return OAKNODE_OK, or OAKNODE_E_STATE if already initialized.
*/
int oaknode_project_initialize(OakNodeProject *project);
/**
* @brief Destructively destroy all nodes in the graph (Project::clear()).
*
* The project shell stays usable; oaknode_project_initialize() may be called
* again afterwards.
*
* @return OAKNODE_OK or a negative OAKNODE_E_* error code.
*/
int oaknode_project_clear(OakNodeProject *project);
/**
* @brief Borrowed handle of the project's root folder (Project::root()).
*
* NULL if the project has not been initialized.
*/
OakNodeFolder *oaknode_project_root(OakNodeProject *project);
/**
* @brief Project display name (Project::name(): the filename's base name, or
* "(untitled)"). Two-stage string getter.
*
* @return Required buffer size in bytes including the NUL, or a negative
* OAKNODE_E_* error code.
*/
int oaknode_project_name(const OakNodeProject *project, char *buf, int buf_size);
/**
* @brief Full path the project was saved as, or "" if untitled
* (Project::filename()). Two-stage string getter.
*/
int oaknode_project_filename(const OakNodeProject *project, char *buf,
int buf_size);
/**
* @brief Display name safe for window titles (Project::pretty_filename()).
* Two-stage string getter.
*/
int oaknode_project_pretty_filename(const OakNodeProject *project, char *buf,
int buf_size);
/**
* @brief Set the project's filename (Project::set_filename()).
*
* @return OAKNODE_OK or a negative OAKNODE_E_* error code.
*/
int oaknode_project_set_filename(OakNodeProject *project, const char *filename);
/**
* @brief 1 if the project has unsaved changes, 0 otherwise
* (Project::is_modified()). Negative OAKNODE_E_* code on NULL.
*/
int oaknode_project_is_modified(const OakNodeProject *project);
/**
* @brief Set the modified flag (Project::set_modified()).
*
* @return OAKNODE_OK or a negative OAKNODE_E_* error code.
*/
int oaknode_project_set_modified(OakNodeProject *project, int modified);
/**
* @brief 1 if the project is new (untitled and unmodified, Project::is_new()).
* Negative OAKNODE_E_* code on NULL.
*/
int oaknode_project_is_new(const OakNodeProject *project);
/**
* @brief Effective cache directory (Project::cache_path(), honoring the cache
* location setting). Two-stage string getter.
*/
int oaknode_project_cache_path(const OakNodeProject *project, char *buf,
int buf_size);
/**
* @brief Cache location setting enum value
* (Project::get_cache_location_setting(): 0 = default location,
* 1 = alongside project, 2 = custom path). Negative OAKNODE_E_* code on NULL.
*/
int oaknode_project_get_cache_location_setting(const OakNodeProject *project);
/**
* @brief Set the cache location setting (0/1/2, see
* oaknode_project_get_cache_location_setting()).
*
* @return OAKNODE_OK or a negative OAKNODE_E_* error code.
*/
int oaknode_project_set_cache_location_setting(OakNodeProject *project,
int setting);
/**
* @brief Custom cache directory, or "" when none is set
* (Project::get_custom_cache_path()). Two-stage string getter.
*/
int oaknode_project_get_custom_cache_path(const OakNodeProject *project,
char *buf, int buf_size);
/**
* @brief Set a custom cache directory (Project::set_custom_cache_path()).
* NULL clears it.
*
* @return OAKNODE_OK or a negative OAKNODE_E_* error code.
*/
int oaknode_project_set_custom_cache_path(OakNodeProject *project,
const char *path);
/**
* @brief Project UUID string (Project::get_uuid()). Two-stage string getter.
*/
int oaknode_project_get_uuid(const OakNodeProject *project, char *buf,
int buf_size);
/**
* @brief Add a node to the graph; the project takes ownership
* (Project::add_node()).
*
* @return OAKNODE_OK or a negative OAKNODE_E_* error code.
*/
int oaknode_project_add_node(OakNodeProject *project, OakNodeNode *node);
/**
* @brief Detach a node from the graph without deleting it
* (Project::remove_node()).
*
* @return OAKNODE_OK, OAKNODE_E_NOT_FOUND if the node is not in the graph, or
* another negative OAKNODE_E_* error code.
*/
int oaknode_project_remove_node(OakNodeProject *project, OakNodeNode *node);
/**
* @brief Number of nodes belonging to the graph (Project::nodes().size()).
* Negative OAKNODE_E_* code on NULL.
*/
int oaknode_project_node_count(const OakNodeProject *project);
/**
* @brief Borrowed handle of the graph node at `index`, or NULL when out of
* range.
*/
OakNodeNode *oaknode_project_node_at(const OakNodeProject *project, int index);
#ifdef __cplusplus
}
#endif
#endif //OAK_EDITOR_NODE_PROJECT_H