subsurface/commands/command_filter.cpp
Berthold Stoeger 2f5223035a filter: add filter preset undo commands
Add undo commands to add / edit / delete filter presets.
These are styled after the other undo commands: On changes,
the UI is informed by DiveListNotifier signals. Editing is
a simple std::swap of values.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2020-09-29 16:13:03 -07:00

91 lines
2 KiB
C++

// SPDX-License-Identifier: GPL-2.0
#include "command_filter.h"
#include "core/filterpreset.h"
#include "core/subsurface-qt/divelistnotifier.h"
namespace Command {
static int createFilterPreset(const QString &name, const FilterData &data)
{
int index = filter_preset_add(name, data);
emit diveListNotifier.filterPresetAdded(index);
return index;
}
static std::pair<QString, FilterData> removeFilterPreset(int index)
{
QString oldName = filter_preset_name_qstring(index);
FilterData oldData = filter_preset_get(index);
filter_preset_delete(index);
emit diveListNotifier.filterPresetRemoved(index);
return { oldName, oldData };
}
CreateFilterPreset::CreateFilterPreset(const QString &nameIn, const FilterData &dataIn) :
name(nameIn), data(dataIn), index(0)
{
setText(Command::Base::tr("Create filter preset %1").arg(nameIn));
}
bool CreateFilterPreset::workToBeDone()
{
return true;
}
void CreateFilterPreset::redo()
{
index = createFilterPreset(name, data);
}
void CreateFilterPreset::undo()
{
// with std::tie() we can conveniently assign tuples
std::tie(name, data) = removeFilterPreset(index);
}
RemoveFilterPreset::RemoveFilterPreset(int indexIn) : index(indexIn)
{
setText(Command::Base::tr("Delete filter preset %1").arg(filter_preset_name_qstring(index)));
}
bool RemoveFilterPreset::workToBeDone()
{
return true;
}
void RemoveFilterPreset::redo()
{
// with std::tie() we can conveniently assign tuples
std::tie(name, data) = removeFilterPreset(index);
}
void RemoveFilterPreset::undo()
{
index = createFilterPreset(name, data);
}
EditFilterPreset::EditFilterPreset(int indexIn, const FilterData &dataIn) :
index(indexIn), data(dataIn)
{
setText(Command::Base::tr("Edit filter preset %1").arg(filter_preset_name_qstring(index)));
}
bool EditFilterPreset::workToBeDone()
{
return true;
}
void EditFilterPreset::redo()
{
FilterData oldData = filter_preset_get(index);
filter_preset_set(index, data);
data = std::move(oldData);
}
void EditFilterPreset::undo()
{
redo(); // undo() and redo() do the same thing
}
} // namespace Command