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137 lines
3.8 KiB
C++
137 lines
3.8 KiB
C++
#ifndef FORMBINDER_H
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#define FORMBINDER_H
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#include <QSharedPointer>
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#include <QComboBox>
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#include <QWidget>
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#include <QMetaMethod>
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#include <QMetaProperty>
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#include <QVariant>
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#include "combodata.h"
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#include "ivalidator.h"
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#include "iform.h"
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#include "../qdecimal/src/QDecDouble.hh"
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template<class T>
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class FormBinder : public IForm
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{
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public:
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explicit FormBinder(QWidget *parent = NULL) : IForm(parent) {}
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virtual ~FormBinder() {
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foreach (IValidator *val, m_validators) {
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delete val;
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}
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m_validators.clear();
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}
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void registerBinding(QWidget *widget) {
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if (!m_bindWidgets.contains(widget)) {
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m_bindWidgets.append(widget);
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}
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}
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void registerBinding(QComboBox *combo, const QList<ComboData> &values) {
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m_bindCombos[combo] = values;
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}
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void registerValidator(IValidator *validator) {
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m_validators.append(validator);
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}
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void setEntity(QSharedPointer<T> entity) {
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m_entity = entity;
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bindToUi();
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}
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QSharedPointer<T> entity() {
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return m_entity;
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}
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protected:
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QSharedPointer<T> m_entity;
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virtual void bindOtherToUi() {}
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virtual bool bindOtherToData() { return true; }
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virtual void registerCombos() {}
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void bindToUi() {
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registerCombos();
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foreach (QWidget *widget, m_bindWidgets) {
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const char* prop = widget->metaObject()->userProperty().name();
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QVariant value = ((QObject*)m_entity.data())->property(widget->objectName().toStdString().c_str());
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if (value.canConvert<QDecDouble>())
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{
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widget->setProperty(prop, value.value<QDecDouble>().toString());
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}
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else
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{
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widget->setProperty(prop, value);
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}
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}
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foreach (QComboBox *combo, m_bindCombos.keys()) {
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int idx = 0;
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QVariant field = ((QObject*)m_entity.data())->property(combo->objectName().toStdString().c_str());
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combo->clear();
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for (int i = 0; i < m_bindCombos[combo].size(); i++) {
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ComboData data = m_bindCombos[combo][i];
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combo->addItem(data.label(), data.index());
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if (data.index().canConvert<QObject*>()) {
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ComboItem* ci = qobject_cast<ComboItem*>(data.index().value<QObject*>());
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ComboItem* ciField = qobject_cast<ComboItem*>(field.value<QObject*>());
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if (ci->eq(ciField)) {
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idx = i;
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}
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}
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else if (field == data.index()) {
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idx = i;
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}
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}
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combo->setCurrentIndex(idx);
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}
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bindOtherToUi();
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}
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bool bindToData() {
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foreach (IValidator *val, m_validators) {
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if (!val->validate()) {
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emit validationError(val->errMessage());
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return false;
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}
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}
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foreach (QWidget *widget, m_bindWidgets) {
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const char* prop = widget->metaObject()->userProperty().name();
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QVariant val = widget->property(prop);
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if (((QObject*)m_entity.data())->property(widget->objectName().toStdString().c_str()).canConvert<QDecDouble>())
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{
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QDecDouble dec(val.toDouble());
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val = QVariant::fromValue(dec);
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}
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((QObject*)m_entity.data())->setProperty(widget->objectName().toStdString().c_str(), val);
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}
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foreach (QComboBox *combo, m_bindCombos.keys()) {
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((QObject*)m_entity.data())->setProperty(combo->objectName().toStdString().c_str(), combo->currentData());
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}
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return bindOtherToData();
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}
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private:
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QList<QWidget*> m_bindWidgets;
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QHash<QComboBox*, QList<ComboData> > m_bindCombos;
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QList<IValidator*> m_validators;
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};
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#endif // FORMBINDER_H
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