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undo: autogenerate string get() and data() functions using a template

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Do this in analogy to other types. However, here we have to convert
from / to QString. We could do this in an even more general way
by using two templat parameters: one for the Qt type, one for the
core type and define conversion functions. However, let's not do
this for now.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2020-03-21 18:30:49 +01:00 • committed by bstoeger
parent ea813938a8
commit 91f7689787
2 changed files with 27 additions and 30 deletions
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35
commands/command_edit.cpp
View file

@ -38,6 +38,19 @@ T EditDefaultSetter<T, ID, PTR>::data(struct dive *d) const
return d->*PTR;
}
template <DiveField::Flags ID, char *dive::*PTR>
void EditStringSetter<ID, PTR>::set(struct dive *d, QString v) const
{
free(d->*PTR);
d->*PTR = copy_qstring(v);
}
template <DiveField::Flags ID, char *dive::*PTR>
QString EditStringSetter<ID, PTR>::data(struct dive *d) const
{
return QString(d->*PTR);
}
static std::vector<dive *> getDives(bool currentDiveOnly)
{
if (currentDiveOnly)
@ -176,34 +189,12 @@ void EditBase<T>::redo()
// Implementation of virtual functions
// ***** Notes *****
void EditNotes::set(struct dive *d, QString s) const
{
free(d->notes);
d->notes = strdup(qPrintable(s));
}
QString EditNotes::data(struct dive *d) const
{
return QString(d->notes);
}
QString EditNotes::fieldName() const
{
return Command::Base::tr("notes");
}
// ***** Suit *****
void EditSuit::set(struct dive *d, QString s) const
{
free(d->suit);
d->suit = strdup(qPrintable(s));
}
QString EditSuit::data(struct dive *d) const
{
return QString(d->suit);
}
QString EditSuit::fieldName() const
{
return Command::Base::tr("suit");

22
commands/command_edit.h
View file

@ -84,19 +84,25 @@ private:
T data(struct dive *d) const override final; // final prevents further overriding - then just don't use this template
};
class EditNotes : public EditTemplate<QString, DiveField::NOTES> {
// Automatically generate getter and setter in the case for string assignments.
// The third parameter is a pointer to a C-style string in the dive structure.
template <DiveField::Flags ID, char *dive::*PTR>
class EditStringSetter : public EditTemplate<QString, ID> {
private:
using EditTemplate<QString, ID>::EditTemplate;
void set(struct dive *d, QString) const override final; // final prevents further overriding - then just don't use this template
QString data(struct dive *d) const override final; // final prevents further overriding - then just don't use this template
};
class EditNotes : public EditStringSetter<DiveField::NOTES, &dive::notes> {
public:
using EditTemplate::EditTemplate; // Use constructor of base class.
void set(struct dive *d, QString s) const override;
QString data(struct dive *d) const override;
using EditStringSetter::EditStringSetter; // Use constructor of base class.
QString fieldName() const override;
};
class EditSuit : public EditTemplate<QString, DiveField::SUIT> {
class EditSuit : public EditStringSetter<DiveField::SUIT, &dive::suit> {
public:
using EditTemplate::EditTemplate; // Use constructor of base class.
void set(struct dive *d, QString s) const override;
QString data(struct dive *d) const override;
using EditStringSetter::EditStringSetter; // Use constructor of base class.
QString fieldName() const override;
};