80 lines
1.8 KiB
C++
80 lines
1.8 KiB
C++
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#include "x_spinboxdelegate.h"
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/*
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delegate.cpp
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A delegate that allows the user to change integer values from the model
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using a spin box widget.
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*/
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#include "x_spinboxdelegate.h"
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#include <QSpinBox>
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//! [0]
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SpinBoxDelegate::SpinBoxDelegate(QObject *parent,int iFlag)
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: QStyledItemDelegate(parent)
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{
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m_iFlag=iFlag;
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}
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//! [0]
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//! [1]
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QWidget *SpinBoxDelegate::createEditor(QWidget *parent,
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const QStyleOptionViewItem &/* option */,
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const QModelIndex & index ) const
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{
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if(index.column()==0)
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{
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QSpinBox *editor = new QSpinBox(parent);
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editor->setFrame(false);
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editor->setMinimum(0);
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if(m_iFlag==0)
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editor->setMaximum(255);//亮度最大值
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else if(m_iFlag==1)
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editor->setMaximum(15);//音量最大值
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editor->setAlignment(Qt::AlignHCenter);
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return editor;
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}
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return nullptr;
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}
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//! [1]
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//void SpinBoxDelegate::setMinMaxData(int min,int max)
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//{
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// m_editor->setMinimum(min);
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// m_editor->setMaximum(max);
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//}
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//! [2]
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void SpinBoxDelegate::setEditorData(QWidget *editor,
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const QModelIndex &index) const
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{
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int value = index.model()->data(index, Qt::EditRole).toInt();
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QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
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spinBox->setValue(value);
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}
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//! [2]
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//! [3]
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void SpinBoxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model,
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const QModelIndex &index) const
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{
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QSpinBox *spinBox = static_cast<QSpinBox*>(editor);
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spinBox->interpretText();
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int value = spinBox->value();
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model->setData(index, value, Qt::EditRole);
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}
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//! [3]
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//! [4]
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void SpinBoxDelegate::updateEditorGeometry(QWidget *editor,
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const QStyleOptionViewItem &option, const QModelIndex &/* index */) const
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{
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editor->setGeometry(option.rect);
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}
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//! [4]
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