DRW_select_buffer.hh

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/* SPDX-FileCopyrightText: 2016 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */

 
#pragma once
 
#include "DNA_ID.h"
 
#include "BLI_array.hh"
#include "BLI_map.hh"
#include "BLI_math_matrix_types.hh"
#include "BLI_math_vector_types.hh"
#include "BLI_set.hh"
#include "BLI_sys_types.h" /* for bool and uint */
 
struct ARegion;
struct Base;
struct Depsgraph;
struct Object;
struct RegionView3D;
struct View3D;
struct rcti;

struct ElemIndexRanges {
  blender::IndexRange face;
  blender::IndexRange edge;
  blender::IndexRange vert;
  blender::IndexRange total;
};
 
struct SELECTID_Context {
  blender::Vector<Object *> objects;
  blender::Map<Object *, ElemIndexRanges> elem_ranges;

  uint max_index_drawn_len;
 
  short select_mode;

  blender::float4x4 persmat;
  uint64_t depsgraph_last_update = 0;
 
  bool is_dirty(Depsgraph *depsgraph, RegionView3D *rv3d);
};
 
/* `draw_select_buffer.cc` */
 
bool DRW_select_buffer_elem_get(uint sel_id, uint &r_elem, uint &r_base_index, char &r_elem_type);

uint DRW_select_buffer_context_offset_for_object_elem(Depsgraph *depsgraph,
                                                      Object *object,
                                                      char elem_type);
uint *DRW_select_buffer_read(
    Depsgraph *depsgraph, ARegion *region, View3D *v3d, const rcti *rect, uint *r_buf_len);
uint *DRW_select_buffer_bitmap_from_rect(
    Depsgraph *depsgraph, ARegion *region, View3D *v3d, const rcti *rect, uint *r_bitmap_len);
uint *DRW_select_buffer_bitmap_from_circle(Depsgraph *depsgraph,
                                           ARegion *region,
                                           View3D *v3d,
                                           const int center[2],
                                           int radius,
                                           uint *r_bitmap_len);
uint *DRW_select_buffer_bitmap_from_poly(Depsgraph *depsgraph,
                                         ARegion *region,
                                         View3D *v3d,
                                         blender::Span<blender::int2> poly,
                                         const rcti *rect,
                                         uint *r_bitmap_len);
uint DRW_select_buffer_sample_point(Depsgraph *depsgraph,
                                    ARegion *region,
                                    View3D *v3d,
                                    const int center[2]);
uint DRW_select_buffer_find_nearest_to_point(Depsgraph *depsgraph,
                                             ARegion *region,
                                             View3D *v3d,
                                             const int center[2],
                                             uint id_min,
                                             uint id_max,
                                             uint *dist);
void DRW_select_buffer_context_create(Depsgraph *depsgraph,
                                      blender::Span<Base *> bases,
                                      short select_mode);