mirror of https://github.com/saitohirga/WSJT-X.git
62 lines
2.7 KiB
C++
62 lines
2.7 KiB
C++
#include "ForeignKeyDelegate.hpp"
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#include <QApplication>
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#include <QComboBox>
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#include <QFontMetrics>
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#include <QSize>
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#include <QStyleOptionViewItem>
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#include "CandidateKeyFilter.hpp"
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ForeignKeyDelegate::ForeignKeyDelegate (QAbstractItemModel const * referenced_model
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, int referenced_key_column
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, QObject * parent
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, int referenced_key_role)
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: QStyledItemDelegate {parent}
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, candidate_key_filter_ {new CandidateKeyFilter {referenced_model, referenced_key_column, nullptr, referenced_key_role}}
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{
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}
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ForeignKeyDelegate::ForeignKeyDelegate (QAbstractItemModel const * referenced_model
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, QAbstractItemModel const * referencing_model
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, int referenced_key_column
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, int referencing_key_column
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, QObject * parent
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, int referenced_key_role
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, int referencing_key_role)
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: QStyledItemDelegate {parent}
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, candidate_key_filter_ {new CandidateKeyFilter {referenced_model, referencing_model, referenced_key_column, referencing_key_column, nullptr, referenced_key_role, referencing_key_role}}
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{
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}
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ForeignKeyDelegate::~ForeignKeyDelegate ()
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{
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}
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QWidget * ForeignKeyDelegate::createEditor (QWidget * parent
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, QStyleOptionViewItem const& /* option */
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, QModelIndex const& index) const
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{
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auto editor = new QComboBox {parent};
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editor->setFrame (false);
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candidate_key_filter_->set_active_key (index);
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editor->setModel (candidate_key_filter_.data ());
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editor->setSizeAdjustPolicy (QComboBox::AdjustToContents);
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return editor;
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}
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QSize ForeignKeyDelegate::sizeHint (QStyleOptionViewItem const& option, QModelIndex const& index) const
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{
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auto size_hint = QStyledItemDelegate::sizeHint (option, index);
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QFontMetrics metrics {option.font};
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QStyleOptionComboBox combo_box_option;
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combo_box_option.rect = option.rect;
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combo_box_option.state = option.state | QStyle::State_Enabled;
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for (auto row = 0; row < candidate_key_filter_->rowCount (); ++row)
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{
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size_hint = size_hint.expandedTo (qApp->style ()->sizeFromContents (QStyle::CT_ComboBox
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, &combo_box_option
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, metrics.boundingRect (candidate_key_filter_->data (candidate_key_filter_->index (row, 0)).toString ()).size ()));
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}
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return size_hint;
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}
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