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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.
*/
#pragma once
#include <mutex>
#include "BLI_resource_scope.hh"
#include "BKE_geometry_set.hh"
#include "spreadsheet_data_source.hh"
struct bContext;
namespace blender::ed::spreadsheet {
/**
* Contains additional named columns that should be displayed that are not stored on the geometry
* directly. This is used for displaying the evaluated fields connected to a viewer node.
*/
class ExtraColumns {
private:
/** Maps column names to their data. The data is actually stored in the spreadsheet cache. */
Map<std::string, fn::GSpan> columns_;
public:
void add(std::string name, fn::GSpan data)
{
columns_.add(std::move(name), data);
}
void foreach_default_column_ids(
FunctionRef<void(const SpreadsheetColumnID &, bool is_extra)> fn) const;
std::unique_ptr<ColumnValues> get_column_values(const SpreadsheetColumnID &column_id) const;
};
class GeometryDataSource : public DataSource {
private:
Object *object_eval_;
const GeometrySet geometry_set_;
const GeometryComponent *component_;
AttributeDomain domain_;
ExtraColumns extra_columns_;
/* Some data is computed on the fly only when it is requested. Computing it does not change the
* logical state of this data source. Therefore, the corresponding methods are const and need to
* be protected with a mutex. */
mutable std::mutex mutex_;
mutable ResourceScope scope_;
public:
GeometryDataSource(Object *object_eval,
GeometrySet geometry_set,
const GeometryComponentType component_type,
const AttributeDomain domain,
ExtraColumns extra_columns)
: object_eval_(object_eval),
geometry_set_(std::move(geometry_set)),
component_(geometry_set_.get_component_for_read(component_type)),
domain_(domain),
extra_columns_(std::move(extra_columns))
{
}
Object *object_eval() const
{
return object_eval_;
}
bool has_selection_filter() const override;
void apply_selection_filter(MutableSpan<bool> rows_included) const;
void foreach_default_column_ids(
FunctionRef<void(const SpreadsheetColumnID &, bool is_extra)> fn) const override;
std::unique_ptr<ColumnValues> get_column_values(
const SpreadsheetColumnID &column_id) const override;
int tot_rows() const override;
};
class InstancesDataSource : public DataSource {
const GeometrySet geometry_set_;
const InstancesComponent *component_;
ExtraColumns extra_columns_;
public:
InstancesDataSource(GeometrySet geometry_set, ExtraColumns extra_columns)
: geometry_set_(std::move(geometry_set)),
component_(geometry_set_.get_component_for_read<InstancesComponent>()),
extra_columns_(std::move(extra_columns))
{
}
void foreach_default_column_ids(
FunctionRef<void(const SpreadsheetColumnID &, bool is_extra)> fn) const override;
std::unique_ptr<ColumnValues> get_column_values(
const SpreadsheetColumnID &column_id) const override;
int tot_rows() const override;
};
class VolumeDataSource : public DataSource {
const GeometrySet geometry_set_;
const VolumeComponent *component_;
public:
VolumeDataSource(GeometrySet geometry_set)
: geometry_set_(std::move(geometry_set)),
component_(geometry_set_.get_component_for_read<VolumeComponent>())
{
}
void foreach_default_column_ids(
FunctionRef<void(const SpreadsheetColumnID &, bool is_extra)> fn) const override;
std::unique_ptr<ColumnValues> get_column_values(
const SpreadsheetColumnID &column_id) const override;
int tot_rows() const override;
};
std::unique_ptr<DataSource> data_source_from_geometry(const bContext *C, Object *object_eval);
} // namespace blender::ed::spreadsheet
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