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添加自定义代理：attributeTableModel，完成数据编辑和删除时的特效展示

This commit is contained in:
duanshengchao 2025-03-27 14:47:51 +08:00
parent e9a3fd0b45
commit a3dcbf4233
6 changed files with 142 additions and 8 deletions
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2
CMakeLists.txt
View File

@ -33,6 +33,7 @@ set(H_HEADER_FILES
include/modelInfoEditDialog.h
include/sqlQueryExecutor.h
include/attributeTableModel.h
include/attributeTableDelegate.h
include/attributeView.h
)
@ -54,6 +55,7 @@ set(CPP_SOURCE_FILES
source/modelInfoEditDialog.cpp
source/sqlQueryExecutor.cpp
source/attributeTableModel.cpp
source/attributeTableDelegate.cpp
source/attributeView.cpp
)

26
include/attributeTableDelegate.h Normal file
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@ -0,0 +1,26 @@
#ifndef ATTRIBUTETABLEDELEGATE_H
#define ATTRIBUTETABLEDELEGATE_H
#include <QStyledItemDelegate>
#include <QTableView>
class AttributeTableDelegate : public QStyledItemDelegate
{
Q_OBJECT
public:
explicit AttributeTableDelegate(QTableView* view, QObject* parent = nullptr);
~AttributeTableDelegate();
/*QWidget *createEditor(QWidget *parent, const QStyleOptionViewItem &option,const QModelIndex &index) const override;
void setEditorData(QWidget *editor, const QModelIndex &index) const override;
void setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const override;
void updateEditorGeometry(QWidget *editor, const QStyleOptionViewItem &option, const QModelIndex &index) const override;*/
void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
private:
QTableView* m_tableView;
};
#endif //ATTRIBUTETABLEDELEGATE_H

4
include/attributeTableModel.h
View File

@ -38,6 +38,7 @@ public:
, const QString& tableName = "basic.attribute");
~AttributeTableModel();
QModelIndex index(int row, int column, const QModelIndex& parent) const override;
QVariant data(const QModelIndex& index, int role) const override;
QVariant headerData(int section, Qt::Orientation orientation, int role) const override;
bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
@ -59,7 +60,8 @@ public:
//数据操作
void setTable(const QString&);
void refresh();
void addNewRecord();
void insertRecord(int);
void removeRecord(int);
//展示列控制
void setVisibleColumns(const QStringList& columns);

40
source/attributeTableDelegate.cpp Normal file
View File

@ -0,0 +1,40 @@
#include "attributeTableDelegate.h"
#include <QPainter>
AttributeTableDelegate::AttributeTableDelegate(QTableView* view, QObject *parent)
: QStyledItemDelegate(parent)
, m_tableView(view)
{
}
AttributeTableDelegate::~AttributeTableDelegate()
{}
void AttributeTableDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const
{
if(index.column() == 0)
{
QString text = index.data(Qt::DisplayRole).toString();
if(text.contains("-") && m_tableView && m_tableView->model()) //删除项,整行画一条红线
{
int row = index.row();
for(int col = 0; col < m_tableView->model()->columnCount(); col++)
{
QModelIndex index = m_tableView->model()->index(row, col);
QRect rect = m_tableView->visualRect(index);
painter->save();
painter->setPen(Qt::red);
painter->drawLine(rect.x(), rect.y() + rect.height()*0.5, rect.x() + rect.width(), rect.y() + rect.height()*0.5); //painter属于view，所以要以view的坐标系为标准
painter->restore();
QStyledItemDelegate::paint(painter, option, index);
}
}
}
else if (index.data(Qt::UserRole + 1).toBool())
{
QStyleOptionViewItem opt = option;
initStyleOption(&opt, index);
opt.font.setBold(true);
QStyledItemDelegate::paint(painter, opt, index);
}
}

66
source/attributeTableModel.cpp
View File

@ -18,6 +18,18 @@ AttributeTableModel::AttributeTableModel(const ModelAttributeGroup& modelAttribu
AttributeTableModel::~AttributeTableModel()
{}
QModelIndex AttributeTableModel::index(int row, int column, const QModelIndex& parent) const
{
if(!hasIndex(row, column, parent))
return QModelIndex();
int dataCol = column - 1;
if(dataCol >= m_visibleColumns.count())
return QModelIndex();
return createIndex(row, column);
}
QVariant AttributeTableModel::data(const QModelIndex& index, int role) const
{
if(!index.isValid())
@ -33,25 +45,25 @@ QVariant AttributeTableModel::data(const QModelIndex& index, int role) const
{
case Qt::DisplayRole:
{
QString prefix;
QString mark;
if(m_modifiedRows.contains(globalRow))
{
switch(m_modifiedRows[globalRow].state)
{
case Modified:
prefix = "*";
mark = "*";
break;
case New:
prefix = "+";
mark = "+";
break;
case Deleted:
prefix = "-";
mark = "-";
break;
default:
break;
}
}
return prefix + QString::number(globalRow + 1);
return QString::number(globalRow + 1) + mark;
}
case Qt::DecorationRole:
return QVariant();
@ -104,7 +116,7 @@ QVariant AttributeTableModel::headerData(int section, Qt::Orientation orientatio
return role == Qt::DisplayRole ? "No." : QVariant();
else
{
return m_visibleColumns.value(section);
return m_visibleColumns.value(section - 1);
}
}
return QAbstractTableModel::headerData(section, orientation, role);
@ -268,9 +280,49 @@ void AttributeTableModel::refresh()
emit syncDataStatus(m_modifiedRows.isEmpty(), m_paginationInfo);
}
void AttributeTableModel::addNewRecord()
void AttributeTableModel::insertRecord(int row)
{
if(row < 0 || row > rowCount())
return;
RowData newRow;
newRow.state = New;
newRow.values.resize(m_visibleColumns.count());
int globalRow = (m_paginationInfo.currentPage - 1) * m_paginationInfo.entriesPerPage + row;
m_modifiedRows[globalRow] = newRow;
beginInsertRows(QModelIndex(), row, row);
m_currentPageData.insert(row, newRow);
endInsertRows();
}
void AttributeTableModel::removeRecord(int row)
{
if(row < 0 || row > rowCount())
return;
emit showMessage(type_question, QString::fromWCharArray(L"提示"),
QString::fromWCharArray(L"确认要删除该记录吗？"));
if(g_msgDlgBtn == btn_No)
return;
beginRemoveRows(QModelIndex(), row, row);
int globalRow = (m_paginationInfo.currentPage - 1) * m_paginationInfo.entriesPerPage + row;
m_modifiedRows[globalRow].state = Deleted;
if(m_currentPageData.at(row).state == New) //新添加未提交的记录
{
m_modifiedRows.remove(globalRow);
}
else
{
m_currentPageData[row].state = Deleted;
m_modifiedRows[globalRow] = m_currentPageData[row];
}
m_currentPageData.removeAt(row);
endRemoveRows();
}
void AttributeTableModel::triggerSyncSignal()

12
source/tableWidgetHoverDelegate.cpp
View File

@ -1,4 +1,5 @@
#include "tableWidgetHoverDelegate.h"
#include <QPainter>
QTableWidgetHoverDelegate::QTableWidgetHoverDelegate(QTableWidget *parent)
: QStyledItemDelegate{parent}
@ -31,5 +32,16 @@ void QTableWidgetHoverDelegate::paint(QPainter* painter, const QStyleOptionViewI
}
}
else
{
/*int row = index.row();
int col = index.column();
QTableWidgetItem* item = m_tableWiget->item(row, col);
QRect rect = m_tableWiget->visualItemRect(item);
qDebug() << row << ", " << col << " optionRect:" << option.rect << " visualItemRect:" << rect;
painter->save();
painter->setPen(Qt::red);
painter->drawLine(rect.x(), rect.y() + rect.height()*0.5, rect.x() + rect.width(), rect.y() + rect.height()*0.5); //painter属于view，所以要以view的坐标系为标准
painter->restore();*/
QStyledItemDelegate::paint(painter, option, index);
}
}