571 lines
20 KiB
C
571 lines
20 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*/
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#pragma once
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/** \file
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* \ingroup bke
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*/
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#include "BLI_compiler_attrs.h"
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#include "RNA_types.h"
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#include "BKE_context.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ARegion;
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struct BlendDataReader;
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struct BlendLibReader;
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struct BlendWriter;
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struct Header;
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struct ID;
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struct LibraryForeachIDData;
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struct ListBase;
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struct Menu;
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struct Panel;
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struct Scene;
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struct ScrArea;
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struct ScrAreaMap;
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struct ScrVert;
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struct SpaceType;
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struct View3D;
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struct View3DShading;
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struct WorkSpace;
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struct bContext;
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struct bScreen;
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struct uiLayout;
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struct uiList;
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struct wmGizmoMap;
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struct wmKeyConfig;
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struct wmMsgBus;
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struct wmNotifier;
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struct wmWindow;
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struct wmWindowManager;
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/* spacetype has everything stored to get an editor working, it gets initialized via
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* #ED_spacetypes_init() in `editors/space_api/spacetypes.c` */
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/* an editor in Blender is a combined ScrArea + SpaceType + SpaceData */
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#define BKE_ST_MAXNAME 64
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typedef struct wmSpaceTypeListenerParams {
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struct wmWindow *window;
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struct ScrArea *area;
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struct wmNotifier *notifier;
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const struct Scene *scene;
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} wmSpaceTypeListenerParams;
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typedef struct SpaceType {
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struct SpaceType *next, *prev;
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char name[BKE_ST_MAXNAME]; /* for menus */
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int spaceid; /* unique space identifier */
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int iconid; /* icon lookup for menus */
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/* Initial allocation, after this WM will call init() too. Some editors need
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* area and scene data (e.g. frame range) to set their initial scrolling. */
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struct SpaceLink *(*create)(const struct ScrArea *area, const struct Scene *scene);
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/* not free spacelink itself */
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void (*free)(struct SpaceLink *sl);
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/* init is to cope with file load, screen (size) changes, check handlers */
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void (*init)(struct wmWindowManager *wm, struct ScrArea *area);
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/* exit is called when the area is hidden or removed */
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void (*exit)(struct wmWindowManager *wm, struct ScrArea *area);
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/* Listeners can react to bContext changes */
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void (*listener)(const wmSpaceTypeListenerParams *params);
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/* called when the mouse moves out of the area */
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void (*deactivate)(struct ScrArea *area);
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/* refresh context, called after filereads, ED_area_tag_refresh() */
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void (*refresh)(const struct bContext *C, struct ScrArea *area);
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/* after a spacedata copy, an init should result in exact same situation */
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struct SpaceLink *(*duplicate)(struct SpaceLink *sl);
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/* register operator types on startup */
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void (*operatortypes)(void);
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/* add default items to WM keymap */
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void (*keymap)(struct wmKeyConfig *keyconf);
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/* on startup, define dropboxes for spacetype+regions */
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void (*dropboxes)(void);
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/* initialize gizmo-map-types and gizmo-group-types with the region */
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void (*gizmos)(void);
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/* return context data */
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bContextDataCallback context;
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/* Used when we want to replace an ID by another (or NULL). */
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void (*id_remap)(struct ScrArea *area,
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struct SpaceLink *sl,
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struct ID *old_id,
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struct ID *new_id);
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int (*space_subtype_get)(struct ScrArea *area);
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void (*space_subtype_set)(struct ScrArea *area, int value);
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void (*space_subtype_item_extend)(struct bContext *C, EnumPropertyItem **item, int *totitem);
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/* region type definitions */
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ListBase regiontypes;
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/* read and write... */
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/* default keymaps to add */
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int keymapflag;
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} SpaceType;
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/* region types are also defined using spacetypes_init, via a callback */
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typedef struct wmRegionListenerParams {
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struct wmWindow *window;
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struct ScrArea *area; /* Can be NULL when the region is not part of an area. */
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struct ARegion *region;
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struct wmNotifier *notifier;
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const struct Scene *scene;
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} wmRegionListenerParams;
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typedef struct wmRegionMessageSubscribeParams {
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const struct bContext *context;
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struct wmMsgBus *message_bus;
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struct WorkSpace *workspace;
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struct Scene *scene;
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struct bScreen *screen;
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struct ScrArea *area;
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struct ARegion *region;
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} wmRegionMessageSubscribeParams;
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typedef struct ARegionType {
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struct ARegionType *next, *prev;
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int regionid; /* unique identifier within this space, defines RGN_TYPE_xxxx */
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/* add handlers, stuff you only do once or on area/region type/size changes */
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void (*init)(struct wmWindowManager *wm, struct ARegion *region);
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/* exit is called when the region is hidden or removed */
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void (*exit)(struct wmWindowManager *wm, struct ARegion *region);
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/* draw entirely, view changes should be handled here */
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void (*draw)(const struct bContext *C, struct ARegion *region);
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/**
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* Handler to draw overlays. This handler is called every draw loop.
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*
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* \note Some editors should return early if the interface is locked
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* (check with #CTX_wm_interface_locked) to avoid accessing scene data
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* that another thread may be modifying
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*/
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void (*draw_overlay)(const struct bContext *C, struct ARegion *region);
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/* optional, compute button layout before drawing for dynamic size */
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void (*layout)(const struct bContext *C, struct ARegion *region);
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/* snap the size of the region (can be NULL for no snapping). */
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int (*snap_size)(const struct ARegion *region, int size, int axis);
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/* contextual changes should be handled here */
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void (*listener)(const wmRegionListenerParams *params);
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/* Optional callback to generate subscriptions. */
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void (*message_subscribe)(const wmRegionMessageSubscribeParams *params);
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void (*free)(struct ARegion *);
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/* split region, copy data optionally */
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void *(*duplicate)(void *poin);
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/* register operator types on startup */
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void (*operatortypes)(void);
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/* add own items to keymap */
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void (*keymap)(struct wmKeyConfig *keyconf);
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/* allows default cursor per region */
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void (*cursor)(struct wmWindow *win, struct ScrArea *area, struct ARegion *region);
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/* return context data */
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bContextDataCallback context;
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/* Is called whenever the current visible View2D's region changes.
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*
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* Used from user code such as view navigation/zoom operators to inform region about changes.
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* The goal is to support zoom-to-fit features which gets disabled when manual navigation is
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* performed.
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*
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* This callback is not called on indirect changes of the current viewport (which could happen
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* when the `v2d->tot is changed and `cur` is adopted accordingly). */
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void (*on_view2d_changed)(const struct bContext *C, struct ARegion *region);
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/* custom drawing callbacks */
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ListBase drawcalls;
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/* panels type definitions */
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ListBase paneltypes;
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/* header type definitions */
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ListBase headertypes;
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/* hardcoded constraints, smaller than these values region is not visible */
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int minsizex, minsizey;
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/* when new region opens (region prefsizex/y are zero then */
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int prefsizex, prefsizey;
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/* default keymaps to add */
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int keymapflag;
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/* return without drawing.
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* lock is set by region definition, and copied to do_lock by render. can become flag. */
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short do_lock, lock;
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/** Don't handle gizmos events behind #uiBlock's with #UI_BLOCK_CLIP_EVENTS flag set. */
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bool clip_gizmo_events_by_ui;
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/* call cursor function on each move event */
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short event_cursor;
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} ARegionType;
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/* panel types */
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typedef struct PanelType {
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struct PanelType *next, *prev;
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char idname[BKE_ST_MAXNAME]; /* unique name */
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char label[BKE_ST_MAXNAME]; /* for panel header */
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char *description; /* for panel tooltip */
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char translation_context[BKE_ST_MAXNAME];
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char context[BKE_ST_MAXNAME]; /* for buttons window */
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char category[BKE_ST_MAXNAME]; /* for category tabs */
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char owner_id[BKE_ST_MAXNAME]; /* for work-spaces to selectively show. */
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char parent_id[BKE_ST_MAXNAME]; /* parent idname for sub-panels */
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/** Boolean property identifier of the panel custom data. Used to draw a highlighted border. */
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char active_property[BKE_ST_MAXNAME];
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short space_type;
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short region_type;
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/* For popovers, 0 for default. */
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int ui_units_x;
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int order;
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int flag;
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/* verify if the panel should draw or not */
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bool (*poll)(const struct bContext *C, struct PanelType *pt);
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/* draw header (optional) */
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void (*draw_header)(const struct bContext *C, struct Panel *panel);
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/* draw header preset (optional) */
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void (*draw_header_preset)(const struct bContext *C, struct Panel *panel);
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/* draw entirely, view changes should be handled here */
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void (*draw)(const struct bContext *C, struct Panel *panel);
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/* For instanced panels corresponding to a list: */
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/** Reorder function, called when drag and drop finishes. */
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void (*reorder)(struct bContext *C, struct Panel *pa, int new_index);
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/**
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* Get the panel and sub-panel's expansion state from the expansion flag in the corresponding
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* data item. Called on draw updates.
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* \note Sub-panels are indexed in depth first order,
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* the visual order you would see if all panels were expanded.
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*/
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short (*get_list_data_expand_flag)(const struct bContext *C, struct Panel *pa);
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/**
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* Set the expansion bit-field from the closed / open state of this panel and its sub-panels.
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* Called when the expansion state of the panel changes with user input.
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* \note Sub-panels are indexed in depth first order,
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* the visual order you would see if all panels were expanded.
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*/
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void (*set_list_data_expand_flag)(const struct bContext *C, struct Panel *pa, short expand_flag);
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/* sub panels */
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struct PanelType *parent;
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ListBase children;
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/* RNA integration */
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ExtensionRNA rna_ext;
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} PanelType;
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/* #PanelType.flag */
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enum {
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PANEL_TYPE_DEFAULT_CLOSED = (1 << 0),
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PANEL_TYPE_NO_HEADER = (1 << 1),
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/** Makes buttons in the header shrink/stretch to fill full layout width. */
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PANEL_TYPE_HEADER_EXPAND = (1 << 2),
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PANEL_TYPE_LAYOUT_VERT_BAR = (1 << 3),
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/** This panel type represents data external to the UI. */
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PANEL_TYPE_INSTANCED = (1 << 4),
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/** Don't search panels with this type during property search. */
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PANEL_TYPE_NO_SEARCH = (1 << 7),
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};
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/* uilist types */
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/* Draw an item in the uiList */
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typedef void (*uiListDrawItemFunc)(struct uiList *ui_list,
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struct bContext *C,
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struct uiLayout *layout,
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struct PointerRNA *dataptr,
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struct PointerRNA *itemptr,
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int icon,
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struct PointerRNA *active_dataptr,
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const char *active_propname,
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int index,
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int flt_flag);
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/* Draw the filtering part of an uiList */
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typedef void (*uiListDrawFilterFunc)(struct uiList *ui_list,
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struct bContext *C,
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struct uiLayout *layout);
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/* Filter items of an uiList */
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typedef void (*uiListFilterItemsFunc)(struct uiList *ui_list,
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struct bContext *C,
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struct PointerRNA *,
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const char *propname);
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/* Listen to notifiers. Only for lists defined in C. */
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typedef void (*uiListListener)(struct uiList *ui_list, wmRegionListenerParams *params);
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typedef struct uiListType {
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struct uiListType *next, *prev;
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char idname[BKE_ST_MAXNAME]; /* unique name */
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uiListDrawItemFunc draw_item;
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uiListDrawFilterFunc draw_filter;
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uiListFilterItemsFunc filter_items;
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/* For lists defined in C only. */
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uiListListener listener;
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/* RNA integration */
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ExtensionRNA rna_ext;
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} uiListType;
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/* header types */
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typedef struct HeaderType {
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struct HeaderType *next, *prev;
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char idname[BKE_ST_MAXNAME]; /* unique name */
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int space_type;
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int region_type;
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bool (*poll)(const struct bContext *C, struct HeaderType *ht);
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/* draw entirely, view changes should be handled here */
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void (*draw)(const struct bContext *C, struct Header *header);
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/* RNA integration */
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ExtensionRNA rna_ext;
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} HeaderType;
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typedef struct Header {
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struct HeaderType *type; /* runtime */
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struct uiLayout *layout; /* runtime for drawing */
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} Header;
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/* menu types */
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typedef struct MenuType {
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struct MenuType *next, *prev;
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char idname[BKE_ST_MAXNAME]; /* unique name */
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char label[BKE_ST_MAXNAME]; /* for button text */
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char translation_context[BKE_ST_MAXNAME];
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char owner_id[BKE_ST_MAXNAME]; /* optional, see: #wmOwnerID */
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const char *description;
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/* verify if the menu should draw or not */
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bool (*poll)(const struct bContext *C, struct MenuType *mt);
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/* draw entirely, view changes should be handled here */
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void (*draw)(const struct bContext *C, struct Menu *menu);
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/* RNA integration */
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ExtensionRNA rna_ext;
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} MenuType;
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typedef struct Menu {
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struct MenuType *type; /* runtime */
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struct uiLayout *layout; /* runtime for drawing */
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} Menu;
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/* Space-types. */
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struct SpaceType *BKE_spacetype_from_id(int spaceid);
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struct ARegionType *BKE_regiontype_from_id_or_first(const struct SpaceType *st, int regionid);
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struct ARegionType *BKE_regiontype_from_id(const struct SpaceType *st, int regionid);
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const struct ListBase *BKE_spacetypes_list(void);
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void BKE_spacetype_register(struct SpaceType *st);
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bool BKE_spacetype_exists(int spaceid);
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void BKE_spacetypes_free(void); /* only for quitting blender */
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/* Space-data. */
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void BKE_spacedata_freelist(ListBase *lb);
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/**
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* \param lb_dst: should be empty (will be cleared).
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*/
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void BKE_spacedata_copylist(ListBase *lb_dst, ListBase *lb_src);
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/**
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* Facility to set locks for drawing to survive (render) threads accessing drawing data.
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*
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* \note Lock can become bit-flag too.
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* \note Should be replaced in future by better local data handling for threads.
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*/
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void BKE_spacedata_draw_locks(bool set);
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/**
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* Version of #BKE_area_find_region_type that also works if \a slink
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* is not the active space of \a area.
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*/
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struct ARegion *BKE_spacedata_find_region_type(const struct SpaceLink *slink,
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const struct ScrArea *area,
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int region_type) ATTR_WARN_UNUSED_RESULT
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ATTR_NONNULL();
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void BKE_spacedata_callback_id_remap_set(void (*func)(
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struct ScrArea *area, struct SpaceLink *sl, struct ID *old_id, struct ID *new_id));
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/**
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* Currently unused!
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*/
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void BKE_spacedata_id_unref(struct ScrArea *area, struct SpaceLink *sl, struct ID *id);
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/* Area/regions. */
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struct ARegion *BKE_area_region_copy(const struct SpaceType *st, const struct ARegion *region);
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/**
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* Doesn't free the region itself.
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*/
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void BKE_area_region_free(struct SpaceType *st, struct ARegion *region);
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void BKE_area_region_panels_free(struct ListBase *panels);
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/**
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* Doesn't free the area itself.
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*/
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void BKE_screen_area_free(struct ScrArea *area);
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/**
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* Gizmo-maps of a region need to be freed with the region.
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* Uses callback to avoid low-level call.
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*/
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void BKE_region_callback_free_gizmomap_set(void (*callback)(struct wmGizmoMap *));
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void BKE_region_callback_refresh_tag_gizmomap_set(void (*callback)(struct wmGizmoMap *));
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/**
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* Find a region of type \a region_type in the currently active space of \a area.
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*
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* \note This does _not_ work if the region to look up is not in the active space.
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* Use #BKE_spacedata_find_region_type if that may be the case.
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*/
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struct ARegion *BKE_area_find_region_type(const struct ScrArea *area, int type);
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struct ARegion *BKE_area_find_region_active_win(struct ScrArea *area);
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struct ARegion *BKE_area_find_region_xy(struct ScrArea *area,
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const int regiontype,
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const int xy[2]) ATTR_NONNULL(3);
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/**
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* \note This is only for screen level regions (typically menus/popups).
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*/
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struct ARegion *BKE_screen_find_region_xy(struct bScreen *screen,
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const int regiontype,
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const int xy[2]) ATTR_WARN_UNUSED_RESULT
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ATTR_NONNULL(1, 3);
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struct ARegion *BKE_screen_find_main_region_at_xy(struct bScreen *screen,
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const int space_type,
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const int xy[2]) ATTR_NONNULL(1, 3);
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/**
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* \note Ideally we can get the area from the context,
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* there are a few places however where this isn't practical.
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*/
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struct ScrArea *BKE_screen_find_area_from_space(struct bScreen *screen,
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struct SpaceLink *sl) ATTR_WARN_UNUSED_RESULT
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ATTR_NONNULL(1, 2);
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/**
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* \note Using this function is generally a last resort, you really want to be
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* using the context when you can - campbell
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*/
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struct ScrArea *BKE_screen_find_big_area(struct bScreen *screen,
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const int spacetype,
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const short min);
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struct ScrArea *BKE_screen_area_map_find_area_xy(const struct ScrAreaMap *areamap,
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const int spacetype,
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const int xy[2]) ATTR_NONNULL(1, 3);
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struct ScrArea *BKE_screen_find_area_xy(struct bScreen *screen,
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const int spacetype,
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const int xy[2]) ATTR_NONNULL(1, 3);
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void BKE_screen_gizmo_tag_refresh(struct bScreen *screen);
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void BKE_screen_view3d_sync(struct View3D *v3d, struct Scene *scene);
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void BKE_screen_view3d_scene_sync(struct bScreen *screen, struct Scene *scene);
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bool BKE_screen_is_fullscreen_area(const struct bScreen *screen) ATTR_WARN_UNUSED_RESULT
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ATTR_NONNULL();
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bool BKE_screen_is_used(const struct bScreen *screen) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
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/* Zoom factor conversion. */
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float BKE_screen_view3d_zoom_to_fac(float camzoom);
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float BKE_screen_view3d_zoom_from_fac(float zoomfac);
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void BKE_screen_view3d_shading_init(struct View3DShading *shading);
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/* Screen. */
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/**
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* Callback used by lib_query to walk over all ID usages
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* (mimics `foreach_id` callback of #IDTypeInfo structure).
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*/
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void BKE_screen_foreach_id_screen_area(struct LibraryForeachIDData *data, struct ScrArea *area);
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/**
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* Free (or release) any data used by this screen (does not free the screen itself).
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*/
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void BKE_screen_free_data(struct bScreen *screen);
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void BKE_screen_area_map_free(struct ScrAreaMap *area_map) ATTR_NONNULL();
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struct ScrEdge *BKE_screen_find_edge(const struct bScreen *screen,
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struct ScrVert *v1,
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struct ScrVert *v2);
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void BKE_screen_sort_scrvert(struct ScrVert **v1, struct ScrVert **v2);
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void BKE_screen_remove_double_scrverts(struct bScreen *screen);
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void BKE_screen_remove_double_scredges(struct bScreen *screen);
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void BKE_screen_remove_unused_scredges(struct bScreen *screen);
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void BKE_screen_remove_unused_scrverts(struct bScreen *screen);
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void BKE_screen_header_alignment_reset(struct bScreen *screen);
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/* .blend file I/O */
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void BKE_screen_view3d_shading_blend_write(struct BlendWriter *writer,
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struct View3DShading *shading);
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void BKE_screen_view3d_shading_blend_read_data(struct BlendDataReader *reader,
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struct View3DShading *shading);
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void BKE_screen_area_map_blend_write(struct BlendWriter *writer, struct ScrAreaMap *area_map);
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/**
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|
* \return false on error.
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|
*/
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bool BKE_screen_area_map_blend_read_data(struct BlendDataReader *reader,
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struct ScrAreaMap *area_map);
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/**
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|
* And as patch for 2.48 and older.
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|
*/
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|
void BKE_screen_view3d_do_versions_250(struct View3D *v3d, ListBase *regions);
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void BKE_screen_area_blend_read_lib(struct BlendLibReader *reader,
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|
struct ID *parent_id,
|
|
struct ScrArea *area);
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|
/**
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|
* Cannot use #IDTypeInfo callback yet, because of the return value.
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|
*/
|
|
bool BKE_screen_blend_read_data(struct BlendDataReader *reader, struct bScreen *screen);
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|
#ifdef __cplusplus
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|
}
|
|
#endif
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