266 lines
9.9 KiB
C++
266 lines
9.9 KiB
C++
/***************************************************************************
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* Copyright (c) 2004 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <QApplication>
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# include <QModelIndex>
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# include <QPainter>
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#endif
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#include <Base/Tools.h>
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#include "PropertyItemDelegate.h"
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#include "MDIView.h"
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#include "PropertyEditor.h"
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#include "PropertyItem.h"
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#include "Tree.h"
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FC_LOG_LEVEL_INIT("PropertyView", true, true)
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using namespace Gui::PropertyEditor;
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PropertyItemDelegate::PropertyItemDelegate(QObject* parent)
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: QItemDelegate(parent), expressionEditor(0)
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, pressed(false), changed(false)
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{
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}
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PropertyItemDelegate::~PropertyItemDelegate()
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{
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}
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QSize PropertyItemDelegate::sizeHint(const QStyleOptionViewItem & option, const QModelIndex & index) const
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{
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QSize size = QItemDelegate::sizeHint(option, index);
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size += QSize(0, 5);
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return size;
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}
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void PropertyItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opt, const QModelIndex &index) const
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{
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QStyleOptionViewItem option = opt;
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PropertyItem *property = static_cast<PropertyItem*>(index.internalPointer());
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if (property && property->isSeparator()) {
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QColor color = option.palette.color(QPalette::BrightText);
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QObject* par = parent();
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if (par) {
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QVariant value = par->property("groupTextColor");
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if (value.canConvert<QColor>())
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color = value.value<QColor>();
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}
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option.palette.setColor(QPalette::Text, color);
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option.font.setBold(true);
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// Since the group item now parents all the property items and can be
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// collapsed, it makes sense to have some selection visual clue for it.
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//
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// option.state &= ~QStyle::State_Selected;
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}
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else if (index.column() == 1) {
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option.state &= ~QStyle::State_Selected;
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}
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option.state &= ~QStyle::State_HasFocus;
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if (property && property->isSeparator()) {
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QBrush brush = option.palette.dark();
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QObject* par = parent();
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if (par) {
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QVariant value = par->property("groupBackground");
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if (value.canConvert<QBrush>())
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brush = value.value<QBrush>();
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}
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painter->fillRect(option.rect, brush);
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}
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QPen savedPen = painter->pen();
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QItemDelegate::paint(painter, option, index);
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QColor color = static_cast<QRgb>(QApplication::style()->styleHint(QStyle::SH_Table_GridLineColor, &opt, qobject_cast<QWidget*>(parent())));
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painter->setPen(QPen(color));
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if (index.column() == 1 || !(property && property->isSeparator())) {
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int right = (option.direction == Qt::LeftToRight) ? option.rect.right() : option.rect.left();
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painter->drawLine(right, option.rect.y(), right, option.rect.bottom());
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}
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painter->drawLine(option.rect.x(), option.rect.bottom(),
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option.rect.right(), option.rect.bottom());
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painter->setPen(savedPen);
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}
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bool PropertyItemDelegate::editorEvent (QEvent * event, QAbstractItemModel* model,
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const QStyleOptionViewItem& option, const QModelIndex& index)
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{
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if (event && event->type() == QEvent::MouseButtonPress)
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this->pressed = true;
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else
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this->pressed = false;
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return QItemDelegate::editorEvent(event, model, option, index);
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}
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bool PropertyItemDelegate::eventFilter(QObject *o, QEvent *ev)
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{
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if (ev->type() == QEvent::FocusOut) {
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PropertyEditor *parentEditor = qobject_cast<PropertyEditor*>(this->parent());
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auto widget = qobject_cast<QWidget*>(o);
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if (widget && parentEditor && parentEditor->activeEditor
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&& widget != parentEditor->activeEditor)
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{
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// We event filter child QAbstractButton and QLabel of an editor,
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// which requires special focus change in order to not mess up with
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// QItemDelegate's logic.
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QWidget *w = QApplication::focusWidget();
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// For some reason, Qt (5.15) on Windows will remove current focus
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// before bringing up a modal dialog.
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if (!w)
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return false;
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while (w) { // don't worry about focus changes internally in the editor
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if (w == widget || w == parentEditor->activeEditor)
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return false;
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// ignore focus change to 3D view or tree view, because, for
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// example DlgPropertyLink is implemented as modeless dialog
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// to allow selection in 3D and tree view.
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if (qobject_cast<MDIView*>(w))
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return false;
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if (qobject_cast<TreeWidget*>(w))
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return false;
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w = w->parentWidget();
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}
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}
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}
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return QItemDelegate::eventFilter(o, ev);
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}
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QWidget * PropertyItemDelegate::createEditor (QWidget * parent, const QStyleOptionViewItem & /*option*/,
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const QModelIndex & index ) const
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{
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if (!index.isValid())
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return 0;
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PropertyItem *childItem = static_cast<PropertyItem*>(index.internalPointer());
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if (!childItem)
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return 0;
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PropertyEditor *parentEditor = qobject_cast<PropertyEditor*>(this->parent());
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if(parentEditor)
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parentEditor->closeEditor();
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if (childItem->isSeparator())
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return 0;
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FC_LOG("create editor " << index.row() << "," << index.column());
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QWidget* editor;
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expressionEditor = 0;
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userEditor = nullptr;
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if (parentEditor && parentEditor->isBinding()) {
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expressionEditor = editor = childItem->createExpressionEditor(parent, this, SLOT(valueChanged()));
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}
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else {
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const auto &props = childItem->getPropertyData();
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if (!props.empty() && props[0]->testStatus(App::Property::UserEdit)) {
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editor = userEditor = childItem->createPropertyEditorWidget(parent);
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}
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else {
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editor = childItem->createEditor(parent, this, SLOT(valueChanged()));
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}
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}
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if (editor) {
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// Make sure the editor background is painted so the cell content doesn't show through
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editor->setAutoFillBackground(true);
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}
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if (editor && childItem->isReadOnly()) {
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editor->setDisabled(true);
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}
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else if (editor /*&& this->pressed*/) {
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// We changed the way editor is activated in PropertyEditor (in response
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// of signal activated and clicked), so now we should grab focus
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// regardless of "pressed" or not (e.g. when activated by keyboard
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// enter)
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editor->setFocus();
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}
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this->pressed = false;
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if (editor) {
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for (auto w : editor->findChildren<QWidget*>()) {
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if (qobject_cast<QAbstractButton*>(w)
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|| qobject_cast<QLabel*>(w))
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{
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w->installEventFilter(const_cast<PropertyItemDelegate*>(this));
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}
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}
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parentEditor->activeEditor = editor;
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parentEditor->editingIndex = index;
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}
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return editor;
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}
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void PropertyItemDelegate::valueChanged()
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{
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QWidget* editor = qobject_cast<QWidget*>(sender());
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if (editor) {
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Base::FlagToggler<> flag(changed);
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commitData(editor);
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}
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}
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void PropertyItemDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
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{
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if (!index.isValid())
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return;
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QVariant data = index.data(Qt::EditRole);
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PropertyItem *childItem = static_cast<PropertyItem*>(index.internalPointer());
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editor->blockSignals(true);
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if (expressionEditor == editor)
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childItem->setExpressionEditorData(editor, data);
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else if (userEditor == editor)
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userEditor->setValue(PropertyItemAttorney::toString(childItem, data));
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else
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childItem->setEditorData(editor, data);
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editor->blockSignals(false);
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return;
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}
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void PropertyItemDelegate::setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const
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{
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if (!index.isValid() || !changed || userEditor)
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return;
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PropertyItem *childItem = static_cast<PropertyItem*>(index.internalPointer());
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QVariant data;
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if(expressionEditor == editor)
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data = childItem->expressionEditorData(editor);
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else
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data = childItem->editorData(editor);
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model->setData(index, data, Qt::EditRole);
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}
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#include "moc_PropertyItemDelegate.cpp"
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