Qtableview mouse move
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@charry said in Qtableview mouse move:
but it will produce a shadow for QStyledItemDelegate
And what's the question now? How should we know what you're doing? Esp. when there is no code at all?
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#pragma once
#include <QApplication>
#include <QTableView>
#include <QStandardItemModel>
#include <QStyledItemDelegate>
#include <QHeaderView>
#include <QPushButton>
#include <QStyleOptionViewItem>class TailButtonsDelegate : public QStyledItemDelegate
{
Q_OBJECT
Q_DISABLE_COPY(TailButtonsDelegate)public:
explicit TailButtonsDelegate(QObject *parent = Q_NULLPTR);
~TailButtonsDelegate();void paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const Q_DECL_OVERRIDE; QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const Q_DECL_OVERRIDE; QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const Q_DECL_OVERRIDE; void setEditorData(QWidget* editor, const QModelIndex& index) const Q_DECL_OVERRIDE; void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const Q_DECL_OVERRIDE; void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const Q_DECL_OVERRIDE; bool editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index) Q_DECL_OVERRIDE;};
#include "TailButtonsDelegate.h"
#include <QMouseEvent>TailButtonsDelegate::TailButtonsDelegate(QObject* parent)
: QStyledItemDelegate(parent)
{}
TailButtonsDelegate::~TailButtonsDelegate()
{
}void TailButtonsDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& index) const {
Q_ASSERT(index.isValid());
QStyleOptionViewItem opt = option;
initStyleOption(&opt, index);
const QWidget* widget = option.widget;
QStyle* style = widget ? widget->style() : QApplication::style();
style->drawControl(QStyle::CE_ItemViewItem, &opt, painter, widget);
if (!(option.state & QStyle::State_Selected))
return;
QStyleOptionButton editButtonOption;
editButtonOption.text = QString(QChar(0x270D)); //use emoji for text, optionally you can use icon + iconSize
editButtonOption.rect = QRect(option.rect.left() + option.rect.width() - (2 * option.rect.height()), option.rect.top(), option.rect.height(), option.rect.height());
editButtonOption.features = QStyleOptionButton::None;
editButtonOption.direction = option.direction;
editButtonOption.fontMetrics = option.fontMetrics;
editButtonOption.palette = option.palette;
editButtonOption.styleObject = option.styleObject;
QStyleOptionButton removeButtonOption(editButtonOption);
removeButtonOption.text = QString(QChar(0x274C)); //use emoji for text, optionally you can use icon + iconSize
removeButtonOption.rect = QRect(option.rect.left() + option.rect.width() - option.rect.height(), option.rect.top(), option.rect.height(), option.rect.height());
style->drawControl(QStyle::CE_PushButton, &editButtonOption, painter, widget);
style->drawControl(QStyle::CE_PushButton, &removeButtonOption, painter, widget);// QStyledItemDelegate::paint(painter, option, index);}
QSize TailButtonsDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const {
const QSize baseSize = QStyledItemDelegate::sizeHint(option, index);
return QSize(baseSize.width() + (2 * baseSize.height()), baseSize.height());
}QWidget* TailButtonsDelegate::createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const {
QWidget* result = new QWidget(parent);
result->setGeometry(option.rect);
result->setStyleSheet("background:white;");QWidget* baseEditor = QStyledItemDelegate::createEditor(result, option, index); baseEditor->setObjectName("baseEditor"); baseEditor->setStyleSheet("border: none;"); baseEditor->setGeometry(0, 0, option.rect.width() - (2 * option.rect.height()), option.rect.height()); QPushButton* editButton = new QPushButton(QChar(0x270D), result); editButton->setObjectName("editButton"); editButton->setGeometry(option.rect.width() - (2 * option.rect.height()), 0, option.rect.height(), option.rect.height()); connect(editButton, &QPushButton::clicked, []() {qDebug("Edit"); }); QPushButton* removeButton = new QPushButton(QChar(0x274C), result); removeButton->setObjectName("removeButton"); removeButton->setGeometry(option.rect.width() - option.rect.height(), 0, option.rect.height(), option.rect.height()); connect(removeButton, &QPushButton::clicked, []() {qDebug("Remove"); }); return result;}
void TailButtonsDelegate::setEditorData(QWidget* editor, const QModelIndex& index) const {
QWidget* baseEditor = editor->findChild<QWidget*>("baseEditor");
Q_ASSERT(baseEditor);
QStyledItemDelegate::setEditorData(baseEditor, index);
}void TailButtonsDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const {
QWidget* baseEditor = editor->findChild<QWidget*>("baseEditor");
Q_ASSERT(baseEditor);
QStyledItemDelegate::setModelData(baseEditor, model, index);
}void TailButtonsDelegate::updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const {
Q_UNUSED(index)
editor->setGeometry(option.rect);
QWidget* baseEditor = editor->findChild<QWidget*>("baseEditor");
Q_ASSERT(baseEditor);
baseEditor->setGeometry(0, 0, option.rect.width() - (2 * option.rect.height()), option.rect.height());
QWidget* editButton = editor->findChild<QWidget*>("editButton");
Q_ASSERT(editButton);
editButton->setGeometry(option.rect.width() - (2 * option.rect.height()), 0, option.rect.height(), option.rect.height());
QWidget* removeButton = editor->findChild<QWidget*>("removeButton");
Q_ASSERT(removeButton);
removeButton->setGeometry(option.rect.width() - option.rect.height(), 0, option.rect.height(), option.rect.height());
editor->setGeometry(option.rect);
}bool TailButtonsDelegate::editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index)
{
switch (event->type())
{
case QEvent::MouseButtonRelease:
{
QMouseEvent* pME = static_cast<QMouseEvent*>(event);
if (pME->button() == Qt::LeftButton)
{
QAbstractItemView* pView = qobject_cast<QAbstractItemView*>(const_cast<QWidget*>(option.widget));
if (pView != nullptr)
{
pView->findChild<QWidget*>("baseEditor")->setFocus();// pView->currentIndex(); // pView->findChild<QWidget*>("editButton")->setStyleSheet("background:white;"); // pView->findChild<QWidget*>("removeButton")->setStyleSheet("background:white;"); } // return true; } } case QEvent::MouseMove: { QAbstractItemView* pView = qobject_cast<QAbstractItemView*>(const_cast<QWidget*>(option.widget)); if (pView != nullptr) { // pView->findChild<QWidget*>("baseEditor")->clearFocus(); } } default: break; } return QStyledItemDelegate::editorEvent(event, model, option, index);}
#include <QtCore/QCoreApplication>
#include "TailButtonsDelegate.h"
#include <QTableWidgetItem>int main(int argc, char *argv[])
{
// QCoreApplication a(argc, argv);// return a.exec();
QApplication app(argc, argv); QStandardItemModel baseModel; baseModel.insertRows(0, 20); baseModel.insertColumns(0, 4); for (int i = 0; i < 20; ++i) { for (int j = 0; j < 4; ++j) { baseModel.setData(baseModel.index(i, j), QStringLiteral("%1,%2").arg(i).arg(j)); } } QTableView view; QPalette palette = view.palette(); palette.setBrush(QPalette::Highlight, QColor(0, 120, 215)); palette.setBrush(QPalette::HighlightedText, QBrush(Qt::black)); palette.setBrush(QPalette::Shadow, QBrush(Qt::transparent)); view.setPalette(palette); view.setModel(&baseModel); view.setEditTriggers(QTableView::AllEditTriggers); view.setSelectionMode(QAbstractItemView::SingleSelection);// view.setSelectionBehavior(QTableView::SelectItems);
view.setSelectionBehavior(QTableView::SelectRows);view.horizontalHeader()->setStretchLastSection(true); view.setItemDelegateForColumn(3, new TailButtonsDelegate(&view)); view.resize(800,600); view.show(); return app.exec();}
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@Christian-Ehrlicher sorry,I not englisher. my problem: Click the fourth column and drag the mouse to change the spacing of the table, the window is not paint in time
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Please take a look at your post above - do you really think we can read something meaningful out of it. Please use the <code> - tags to make it more readable and reduce your code as much as possible so only the problem and nothing else is in there.
