From 50123887ba0f33cf47520bee7c419d68742af2d1 Mon Sep 17 00:00:00 2001 From: Qt by Nokia Date: Wed, 27 Apr 2011 12:05:43 +0200 Subject: Initial import from the monolithic Qt. This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12 --- .../qtpropertybrowser/qtbuttonpropertybrowser.cpp | 627 +++++++++++++++++++++ 1 file changed, 627 insertions(+) create mode 100644 src/shared/qtpropertybrowser/qtbuttonpropertybrowser.cpp (limited to 'src/shared/qtpropertybrowser/qtbuttonpropertybrowser.cpp') diff --git a/src/shared/qtpropertybrowser/qtbuttonpropertybrowser.cpp b/src/shared/qtpropertybrowser/qtbuttonpropertybrowser.cpp new file mode 100644 index 000000000..09571243f --- /dev/null +++ b/src/shared/qtpropertybrowser/qtbuttonpropertybrowser.cpp @@ -0,0 +1,627 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the tools applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qtbuttonpropertybrowser.h" +#include +#include +#include +#include +#include +#include +#include + +QT_BEGIN_NAMESPACE + +class QtButtonPropertyBrowserPrivate +{ + QtButtonPropertyBrowser *q_ptr; + Q_DECLARE_PUBLIC(QtButtonPropertyBrowser) +public: + + void init(QWidget *parent); + + void propertyInserted(QtBrowserItem *index, QtBrowserItem *afterIndex); + void propertyRemoved(QtBrowserItem *index); + void propertyChanged(QtBrowserItem *index); + QWidget *createEditor(QtProperty *property, QWidget *parent) const + { return q_ptr->createEditor(property, parent); } + + void slotEditorDestroyed(); + void slotUpdate(); + void slotToggled(bool checked); + + struct WidgetItem + { + WidgetItem() : widget(0), label(0), widgetLabel(0), + button(0), container(0), layout(0), /*line(0), */parent(0), expanded(false) { } + QWidget *widget; // can be null + QLabel *label; // main label with property name + QLabel *widgetLabel; // label substitute showing the current value if there is no widget + QToolButton *button; // expandable button for items with children + QWidget *container; // container which is expanded when the button is clicked + QGridLayout *layout; // layout in container + WidgetItem *parent; + QList children; + bool expanded; + }; +private: + void updateLater(); + void updateItem(WidgetItem *item); + void insertRow(QGridLayout *layout, int row) const; + void removeRow(QGridLayout *layout, int row) const; + int gridRow(WidgetItem *item) const; + int gridSpan(WidgetItem *item) const; + void setExpanded(WidgetItem *item, bool expanded); + QToolButton *createButton(QWidget *panret = 0) const; + + QMap m_indexToItem; + QMap m_itemToIndex; + QMap m_widgetToItem; + QMap m_buttonToItem; + QGridLayout *m_mainLayout; + QList m_children; + QList m_recreateQueue; +}; + +QToolButton *QtButtonPropertyBrowserPrivate::createButton(QWidget *parent) const +{ + QToolButton *button = new QToolButton(parent); + button->setCheckable(true); + button->setSizePolicy(QSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed)); + button->setToolButtonStyle(Qt::ToolButtonTextBesideIcon); + button->setArrowType(Qt::DownArrow); + button->setIconSize(QSize(3, 16)); + /* + QIcon icon; + icon.addPixmap(q_ptr->style()->standardPixmap(QStyle::SP_ArrowDown), QIcon::Normal, QIcon::Off); + icon.addPixmap(q_ptr->style()->standardPixmap(QStyle::SP_ArrowUp), QIcon::Normal, QIcon::On); + button->setIcon(icon); + */ + return button; +} + +int QtButtonPropertyBrowserPrivate::gridRow(WidgetItem *item) const +{ + QList siblings; + if (item->parent) + siblings = item->parent->children; + else + siblings = m_children; + + int row = 0; + QListIterator it(siblings); + while (it.hasNext()) { + WidgetItem *sibling = it.next(); + if (sibling == item) + return row; + row += gridSpan(sibling); + } + return -1; +} + +int QtButtonPropertyBrowserPrivate::gridSpan(WidgetItem *item) const +{ + if (item->container && item->expanded) + return 2; + return 1; +} + +void QtButtonPropertyBrowserPrivate::init(QWidget *parent) +{ + m_mainLayout = new QGridLayout(); + parent->setLayout(m_mainLayout); + QLayoutItem *item = new QSpacerItem(0, 0, + QSizePolicy::Fixed, QSizePolicy::Expanding); + m_mainLayout->addItem(item, 0, 0); +} + +void QtButtonPropertyBrowserPrivate::slotEditorDestroyed() +{ + QWidget *editor = qobject_cast(q_ptr->sender()); + if (!editor) + return; + if (!m_widgetToItem.contains(editor)) + return; + m_widgetToItem[editor]->widget = 0; + m_widgetToItem.remove(editor); +} + +void QtButtonPropertyBrowserPrivate::slotUpdate() +{ + QListIterator itItem(m_recreateQueue); + while (itItem.hasNext()) { + WidgetItem *item = itItem.next(); + + WidgetItem *parent = item->parent; + QWidget *w = 0; + QGridLayout *l = 0; + const int oldRow = gridRow(item); + if (parent) { + w = parent->container; + l = parent->layout; + } else { + w = q_ptr; + l = m_mainLayout; + } + + int span = 1; + if (!item->widget && !item->widgetLabel) + span = 2; + item->label = new QLabel(w); + item->label->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed)); + l->addWidget(item->label, oldRow, 0, 1, span); + + updateItem(item); + } + m_recreateQueue.clear(); +} + +void QtButtonPropertyBrowserPrivate::setExpanded(WidgetItem *item, bool expanded) +{ + if (item->expanded == expanded) + return; + + if (!item->container) + return; + + item->expanded = expanded; + const int row = gridRow(item); + WidgetItem *parent = item->parent; + QGridLayout *l = 0; + if (parent) + l = parent->layout; + else + l = m_mainLayout; + + if (expanded) { + insertRow(l, row + 1); + l->addWidget(item->container, row + 1, 0, 1, 2); + item->container->show(); + } else { + l->removeWidget(item->container); + item->container->hide(); + removeRow(l, row + 1); + } + + item->button->setChecked(expanded); + item->button->setArrowType(expanded ? Qt::UpArrow : Qt::DownArrow); +} + +void QtButtonPropertyBrowserPrivate::slotToggled(bool checked) +{ + WidgetItem *item = m_buttonToItem.value(q_ptr->sender()); + if (!item) + return; + + setExpanded(item, checked); + + if (checked) + emit q_ptr->expanded(m_itemToIndex.value(item)); + else + emit q_ptr->collapsed(m_itemToIndex.value(item)); +} + +void QtButtonPropertyBrowserPrivate::updateLater() +{ + QTimer::singleShot(0, q_ptr, SLOT(slotUpdate())); +} + +void QtButtonPropertyBrowserPrivate::propertyInserted(QtBrowserItem *index, QtBrowserItem *afterIndex) +{ + WidgetItem *afterItem = m_indexToItem.value(afterIndex); + WidgetItem *parentItem = m_indexToItem.value(index->parent()); + + WidgetItem *newItem = new WidgetItem(); + newItem->parent = parentItem; + + QGridLayout *layout = 0; + QWidget *parentWidget = 0; + int row = -1; + if (!afterItem) { + row = 0; + if (parentItem) + parentItem->children.insert(0, newItem); + else + m_children.insert(0, newItem); + } else { + row = gridRow(afterItem) + gridSpan(afterItem); + if (parentItem) + parentItem->children.insert(parentItem->children.indexOf(afterItem) + 1, newItem); + else + m_children.insert(m_children.indexOf(afterItem) + 1, newItem); + } + + if (!parentItem) { + layout = m_mainLayout; + parentWidget = q_ptr; + } else { + if (!parentItem->container) { + m_recreateQueue.removeAll(parentItem); + WidgetItem *grandParent = parentItem->parent; + QWidget *w = 0; + QGridLayout *l = 0; + const int oldRow = gridRow(parentItem); + if (grandParent) { + w = grandParent->container; + l = grandParent->layout; + } else { + w = q_ptr; + l = m_mainLayout; + } + QFrame *container = new QFrame(); + container->setFrameShape(QFrame::Panel); + container->setFrameShadow(QFrame::Raised); + parentItem->container = container; + parentItem->button = createButton(); + m_buttonToItem[parentItem->button] = parentItem; + q_ptr->connect(parentItem->button, SIGNAL(toggled(bool)), q_ptr, SLOT(slotToggled(bool))); + parentItem->layout = new QGridLayout(); + container->setLayout(parentItem->layout); + if (parentItem->label) { + l->removeWidget(parentItem->label); + delete parentItem->label; + parentItem->label = 0; + } + int span = 1; + if (!parentItem->widget && !parentItem->widgetLabel) + span = 2; + l->addWidget(parentItem->button, oldRow, 0, 1, span); + updateItem(parentItem); + } + layout = parentItem->layout; + parentWidget = parentItem->container; + } + + newItem->label = new QLabel(parentWidget); + newItem->label->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed)); + newItem->widget = createEditor(index->property(), parentWidget); + if (newItem->widget) { + QObject::connect(newItem->widget, SIGNAL(destroyed()), q_ptr, SLOT(slotEditorDestroyed())); + m_widgetToItem[newItem->widget] = newItem; + } else if (index->property()->hasValue()) { + newItem->widgetLabel = new QLabel(parentWidget); + newItem->widgetLabel->setSizePolicy(QSizePolicy(QSizePolicy::Ignored, QSizePolicy::Fixed)); + } + + insertRow(layout, row); + int span = 1; + if (newItem->widget) + layout->addWidget(newItem->widget, row, 1); + else if (newItem->widgetLabel) + layout->addWidget(newItem->widgetLabel, row, 1); + else + span = 2; + layout->addWidget(newItem->label, row, 0, span, 1); + + m_itemToIndex[newItem] = index; + m_indexToItem[index] = newItem; + + updateItem(newItem); +} + +void QtButtonPropertyBrowserPrivate::propertyRemoved(QtBrowserItem *index) +{ + WidgetItem *item = m_indexToItem.value(index); + + m_indexToItem.remove(index); + m_itemToIndex.remove(item); + + WidgetItem *parentItem = item->parent; + + const int row = gridRow(item); + + if (parentItem) + parentItem->children.removeAt(parentItem->children.indexOf(item)); + else + m_children.removeAt(m_children.indexOf(item)); + + const int colSpan = gridSpan(item); + + m_buttonToItem.remove(item->button); + + if (item->widget) + delete item->widget; + if (item->label) + delete item->label; + if (item->widgetLabel) + delete item->widgetLabel; + if (item->button) + delete item->button; + if (item->container) + delete item->container; + + if (!parentItem) { + removeRow(m_mainLayout, row); + if (colSpan > 1) + removeRow(m_mainLayout, row); + } else if (parentItem->children.count() != 0) { + removeRow(parentItem->layout, row); + if (colSpan > 1) + removeRow(parentItem->layout, row); + } else { + const WidgetItem *grandParent = parentItem->parent; + QGridLayout *l = 0; + if (grandParent) { + l = grandParent->layout; + } else { + l = m_mainLayout; + } + + const int parentRow = gridRow(parentItem); + const int parentSpan = gridSpan(parentItem); + + l->removeWidget(parentItem->button); + l->removeWidget(parentItem->container); + delete parentItem->button; + delete parentItem->container; + parentItem->button = 0; + parentItem->container = 0; + parentItem->layout = 0; + if (!m_recreateQueue.contains(parentItem)) + m_recreateQueue.append(parentItem); + if (parentSpan > 1) + removeRow(l, parentRow + 1); + + updateLater(); + } + m_recreateQueue.removeAll(item); + + delete item; +} + +void QtButtonPropertyBrowserPrivate::insertRow(QGridLayout *layout, int row) const +{ + QMap itemToPos; + int idx = 0; + while (idx < layout->count()) { + int r, c, rs, cs; + layout->getItemPosition(idx, &r, &c, &rs, &cs); + if (r >= row) { + itemToPos[layout->takeAt(idx)] = QRect(r + 1, c, rs, cs); + } else { + idx++; + } + } + + const QMap::ConstIterator icend = itemToPos.constEnd(); + for(QMap::ConstIterator it = itemToPos.constBegin(); it != icend; ++it) { + const QRect r = it.value(); + layout->addItem(it.key(), r.x(), r.y(), r.width(), r.height()); + } +} + +void QtButtonPropertyBrowserPrivate::removeRow(QGridLayout *layout, int row) const +{ + QMap itemToPos; + int idx = 0; + while (idx < layout->count()) { + int r, c, rs, cs; + layout->getItemPosition(idx, &r, &c, &rs, &cs); + if (r > row) { + itemToPos[layout->takeAt(idx)] = QRect(r - 1, c, rs, cs); + } else { + idx++; + } + } + + const QMap::ConstIterator icend = itemToPos.constEnd(); + for(QMap::ConstIterator it = itemToPos.constBegin(); it != icend; ++it) { + const QRect r = it.value(); + layout->addItem(it.key(), r.x(), r.y(), r.width(), r.height()); + } +} + +void QtButtonPropertyBrowserPrivate::propertyChanged(QtBrowserItem *index) +{ + WidgetItem *item = m_indexToItem.value(index); + + updateItem(item); +} + +void QtButtonPropertyBrowserPrivate::updateItem(WidgetItem *item) +{ + QtProperty *property = m_itemToIndex[item]->property(); + if (item->button) { + QFont font = item->button->font(); + font.setUnderline(property->isModified()); + item->button->setFont(font); + item->button->setText(property->propertyName()); + item->button->setToolTip(property->toolTip()); + item->button->setStatusTip(property->statusTip()); + item->button->setWhatsThis(property->whatsThis()); + item->button->setEnabled(property->isEnabled()); + } + if (item->label) { + QFont font = item->label->font(); + font.setUnderline(property->isModified()); + item->label->setFont(font); + item->label->setText(property->propertyName()); + item->label->setToolTip(property->toolTip()); + item->label->setStatusTip(property->statusTip()); + item->label->setWhatsThis(property->whatsThis()); + item->label->setEnabled(property->isEnabled()); + } + if (item->widgetLabel) { + QFont font = item->widgetLabel->font(); + font.setUnderline(false); + item->widgetLabel->setFont(font); + item->widgetLabel->setText(property->valueText()); + item->widgetLabel->setToolTip(property->valueText()); + item->widgetLabel->setEnabled(property->isEnabled()); + } + if (item->widget) { + QFont font = item->widget->font(); + font.setUnderline(false); + item->widget->setFont(font); + item->widget->setEnabled(property->isEnabled()); + item->widget->setToolTip(property->valueText()); + } +} + + + +/*! + \class QtButtonPropertyBrowser + \internal + \inmodule QtDesigner + \since 4.4 + + \brief The QtButtonPropertyBrowser class provides a drop down QToolButton + based property browser. + + A property browser is a widget that enables the user to edit a + given set of properties. Each property is represented by a label + specifying the property's name, and an editing widget (e.g. a line + edit or a combobox) holding its value. A property can have zero or + more subproperties. + + QtButtonPropertyBrowser provides drop down button for all nested + properties, i.e. subproperties are enclosed by a container associated with + the drop down button. The parent property's name is displayed as button text. For example: + + \image qtbuttonpropertybrowser.png + + Use the QtAbstractPropertyBrowser API to add, insert and remove + properties from an instance of the QtButtonPropertyBrowser + class. The properties themselves are created and managed by + implementations of the QtAbstractPropertyManager class. + + \sa QtTreePropertyBrowser, QtAbstractPropertyBrowser +*/ + +/*! + \fn void QtButtonPropertyBrowser::collapsed(QtBrowserItem *item) + + This signal is emitted when the \a item is collapsed. + + \sa expanded(), setExpanded() +*/ + +/*! + \fn void QtButtonPropertyBrowser::expanded(QtBrowserItem *item) + + This signal is emitted when the \a item is expanded. + + \sa collapsed(), setExpanded() +*/ + +/*! + Creates a property browser with the given \a parent. +*/ +QtButtonPropertyBrowser::QtButtonPropertyBrowser(QWidget *parent) + : QtAbstractPropertyBrowser(parent), d_ptr(new QtButtonPropertyBrowserPrivate) +{ + d_ptr->q_ptr = this; + + d_ptr->init(this); +} + +/*! + Destroys this property browser. + + Note that the properties that were inserted into this browser are + \e not destroyed since they may still be used in other + browsers. The properties are owned by the manager that created + them. + + \sa QtProperty, QtAbstractPropertyManager +*/ +QtButtonPropertyBrowser::~QtButtonPropertyBrowser() +{ + const QMap::ConstIterator icend = d_ptr->m_itemToIndex.constEnd(); + for (QMap::ConstIterator it = d_ptr->m_itemToIndex.constBegin(); it != icend; ++it) + delete it.key(); +} + +/*! + \reimp +*/ +void QtButtonPropertyBrowser::itemInserted(QtBrowserItem *item, QtBrowserItem *afterItem) +{ + d_ptr->propertyInserted(item, afterItem); +} + +/*! + \reimp +*/ +void QtButtonPropertyBrowser::itemRemoved(QtBrowserItem *item) +{ + d_ptr->propertyRemoved(item); +} + +/*! + \reimp +*/ +void QtButtonPropertyBrowser::itemChanged(QtBrowserItem *item) +{ + d_ptr->propertyChanged(item); +} + +/*! + Sets the \a item to either collapse or expanded, depending on the value of \a expanded. + + \sa isExpanded(), expanded(), collapsed() +*/ + +void QtButtonPropertyBrowser::setExpanded(QtBrowserItem *item, bool expanded) +{ + QtButtonPropertyBrowserPrivate::WidgetItem *itm = d_ptr->m_indexToItem.value(item); + if (itm) + d_ptr->setExpanded(itm, expanded); +} + +/*! + Returns true if the \a item is expanded; otherwise returns false. + + \sa setExpanded() +*/ + +bool QtButtonPropertyBrowser::isExpanded(QtBrowserItem *item) const +{ + QtButtonPropertyBrowserPrivate::WidgetItem *itm = d_ptr->m_indexToItem.value(item); + if (itm) + return itm->expanded; + return false; +} + +QT_END_NAMESPACE + +#include "moc_qtbuttonpropertybrowser.cpp" -- cgit v1.2.1