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qt_demoe/third/designer/lib/shared/qdesigner_promotiondialog.cpp

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdesigner_promotiondialog_p.h"
#include "promotionmodel_p.h"
#include "iconloader_p.h"
#include "widgetdatabase_p.h"
#include "signalslotdialog_p.h"
#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerPromotionInterface>
#include <QtDesigner/QDesignerWidgetDataBaseItemInterface>
#include <abstractdialoggui_p.h>
#include <QtCore/QTimer>
#include <QtGui/QVBoxLayout>
#include <QtGui/QHBoxLayout>
#include <QtGui/QFormLayout>
#include <QtGui/QDialogButtonBox>
#include <QtGui/QTreeView>
#include <QtGui/QHeaderView>
#include <QtGui/QPushButton>
#include <QtGui/QItemSelectionModel>
#include <QtGui/QItemSelection>
#include <QtGui/QComboBox>
#include <QtGui/QLineEdit>
#include <QtGui/QCheckBox>
#include <QtGui/QRegExpValidator>
#include <QtGui/QLabel>
#include <QtGui/QSpacerItem>
#include <QtGui/QMenu>
#include <QtGui/QAction>
QT_BEGIN_NAMESPACE
namespace qdesigner_internal {
// PromotionParameters
struct PromotionParameters {
QString m_baseClass;
QString m_className;
QString m_includeFile;
};
// NewPromotedClassPanel
NewPromotedClassPanel::NewPromotedClassPanel(const QStringList &baseClasses,
int selectedBaseClass,
QWidget *parent) :
QGroupBox(parent),
m_baseClassCombo(new QComboBox),
m_classNameEdit(new QLineEdit),
m_includeFileEdit(new QLineEdit),
m_globalIncludeCheckBox(new QCheckBox),
m_addButton(new QPushButton(tr("Add")))
{
setTitle(tr("New Promoted Class"));
setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum);
QHBoxLayout *hboxLayout = new QHBoxLayout(this);
m_classNameEdit->setValidator(new QRegExpValidator(QRegExp(QLatin1String("[_a-zA-Z:][:_a-zA-Z0-9]*")), m_classNameEdit));
connect(m_classNameEdit, SIGNAL(textChanged(QString)), this, SLOT(slotNameChanged(QString)));
connect(m_includeFileEdit, SIGNAL(textChanged(QString)), this, SLOT(slotIncludeFileChanged(QString)));
m_baseClassCombo->setEditable(false);
m_baseClassCombo->addItems(baseClasses);
if (selectedBaseClass != -1)
m_baseClassCombo->setCurrentIndex(selectedBaseClass);
// Grid
QFormLayout *formLayout = new QFormLayout();
formLayout->addRow(tr("Base class name:"), m_baseClassCombo);
formLayout->addRow(tr("Promoted class name:"), m_classNameEdit);
formLayout->addRow(tr("Header file:"), m_includeFileEdit);
formLayout->addRow(tr("Global include"), m_globalIncludeCheckBox);
hboxLayout->addLayout(formLayout);
hboxLayout->addItem(new QSpacerItem(15, 0, QSizePolicy::Fixed, QSizePolicy::Ignored));
// Button box
QVBoxLayout *buttonLayout = new QVBoxLayout();
m_addButton->setAutoDefault(false);
connect(m_addButton, SIGNAL(clicked()), this, SLOT(slotAdd()));
m_addButton->setEnabled(false);
buttonLayout->addWidget(m_addButton);
QPushButton *resetButton = new QPushButton(tr("Reset"));
resetButton->setAutoDefault(false);
connect(resetButton, SIGNAL(clicked()), this, SLOT(slotReset()));
buttonLayout->addWidget(resetButton);
buttonLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Ignored, QSizePolicy::Expanding));
hboxLayout->addLayout(buttonLayout);
enableButtons();
}
void NewPromotedClassPanel::slotAdd() {
bool ok = false;
emit newPromotedClass(promotionParameters(), &ok);
if (ok)
slotReset();
}
void NewPromotedClassPanel::slotReset() {
const QString empty;
m_classNameEdit->setText(empty);
m_includeFileEdit->setText(empty);
m_globalIncludeCheckBox->setCheckState(Qt::Unchecked);
}
void NewPromotedClassPanel::grabFocus() {
m_classNameEdit->setFocus(Qt::OtherFocusReason);
}
void NewPromotedClassPanel::slotNameChanged(const QString &className) {
// Suggest a name
if (!className.isEmpty()) {
QString suggestedHeader = className.toLower().replace(QLatin1String("::"), QString(QLatin1Char('_')));
suggestedHeader += QLatin1String(".h");
const bool blocked = m_includeFileEdit->blockSignals(true);
m_includeFileEdit->setText(suggestedHeader);
m_includeFileEdit->blockSignals(blocked);
}
enableButtons();
}
void NewPromotedClassPanel::slotIncludeFileChanged(const QString &){
enableButtons();
}
void NewPromotedClassPanel::enableButtons() {
const bool enabled = !m_classNameEdit->text().isEmpty() && !m_includeFileEdit->text().isEmpty();
m_addButton->setEnabled(enabled);
m_addButton->setDefault(enabled);
}
PromotionParameters NewPromotedClassPanel::promotionParameters() const {
PromotionParameters rc;
rc.m_baseClass = m_baseClassCombo->currentText();
rc.m_className = m_classNameEdit->text();
rc.m_includeFile = buildIncludeFile(m_includeFileEdit->text(),
m_globalIncludeCheckBox->checkState() == Qt::Checked ? IncludeGlobal : IncludeLocal);
return rc;
}
void NewPromotedClassPanel::chooseBaseClass(const QString &baseClass) {
const int index = m_baseClassCombo->findText (baseClass);
if (index != -1)
m_baseClassCombo->setCurrentIndex (index);
}
// --------------- QDesignerPromotionDialog
QDesignerPromotionDialog::QDesignerPromotionDialog(QDesignerFormEditorInterface *core,
QWidget *parent,
const QString &promotableWidgetClassName,
QString *promoteTo) :
QDialog(parent),
m_mode(promotableWidgetClassName.isEmpty() || promoteTo == 0 ? ModeEdit : ModeEditChooseClass),
m_promotableWidgetClassName(promotableWidgetClassName),
m_core(core),
m_promoteTo(promoteTo),
m_promotion(core->promotion()),
m_model(new PromotionModel(core)),
m_treeView(new QTreeView),
m_buttonBox(0),
m_removeButton(new QPushButton(createIconSet(QString::fromUtf8("minus.png")), QString()))
{
m_buttonBox = createButtonBox();
setModal(true);
setWindowTitle(tr("Promoted Widgets"));
setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
QVBoxLayout *vboxLayout = new QVBoxLayout(this);
// tree view group
QGroupBox *treeViewGroup = new QGroupBox();
treeViewGroup->setTitle(tr("Promoted Classes"));
QVBoxLayout *treeViewVBoxLayout = new QVBoxLayout(treeViewGroup);
// tree view
m_treeView->setModel (m_model);
m_treeView->setMinimumWidth(450);
m_treeView->setContextMenuPolicy(Qt::CustomContextMenu);
connect(m_treeView->selectionModel(), SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
this, SLOT(slotSelectionChanged(QItemSelection,QItemSelection)));
connect(m_treeView, SIGNAL(customContextMenuRequested(QPoint)),
this, SLOT(slotTreeViewContextMenu(QPoint)));
QHeaderView *headerView = m_treeView->header();
headerView->setResizeMode(QHeaderView::ResizeToContents);
treeViewVBoxLayout->addWidget(m_treeView);
// remove button
QHBoxLayout *hboxLayout = new QHBoxLayout();
hboxLayout->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Ignored));
m_removeButton->setAutoDefault(false);
connect(m_removeButton, SIGNAL(clicked()), this, SLOT(slotRemove()));
m_removeButton->setEnabled(false);
hboxLayout->addWidget(m_removeButton);
treeViewVBoxLayout->addLayout(hboxLayout);
vboxLayout->addWidget(treeViewGroup);
// Create new panel: Try to be smart and preselect a base class. Default to QFrame
const QStringList &baseClassNameList = baseClassNames(m_promotion);
int preselectedBaseClass = -1;
if (m_mode == ModeEditChooseClass) {
preselectedBaseClass = baseClassNameList.indexOf(m_promotableWidgetClassName);
}
if (preselectedBaseClass == -1)
preselectedBaseClass = baseClassNameList.indexOf(QLatin1String("QFrame"));
NewPromotedClassPanel *newPromotedClassPanel = new NewPromotedClassPanel(baseClassNameList, preselectedBaseClass);
connect(newPromotedClassPanel, SIGNAL(newPromotedClass(PromotionParameters,bool*)), this, SLOT(slotNewPromotedClass(PromotionParameters,bool*)));
connect(this, SIGNAL(selectedBaseClassChanged(QString)),
newPromotedClassPanel, SLOT(chooseBaseClass(QString)));
vboxLayout->addWidget(newPromotedClassPanel);
// button box
vboxLayout->addWidget(m_buttonBox);
// connect model
connect(m_model, SIGNAL(includeFileChanged(QDesignerWidgetDataBaseItemInterface*,QString)),
this, SLOT(slotIncludeFileChanged(QDesignerWidgetDataBaseItemInterface*,QString)));
connect(m_model, SIGNAL(classNameChanged(QDesignerWidgetDataBaseItemInterface*,QString)),
this, SLOT(slotClassNameChanged(QDesignerWidgetDataBaseItemInterface*,QString)));
// focus
if (m_mode == ModeEditChooseClass)
newPromotedClassPanel->grabFocus();
slotUpdateFromWidgetDatabase();
}
QDialogButtonBox *QDesignerPromotionDialog::createButtonBox() {
QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok|QDialogButtonBox::Close);
connect(buttonBox , SIGNAL(accepted()), this, SLOT(slotAcceptPromoteTo()));
buttonBox->button(QDialogButtonBox::Ok)->setText(tr("Promote"));
buttonBox->button(QDialogButtonBox::Ok)->setEnabled(false);
connect(buttonBox , SIGNAL(rejected()), this, SLOT(reject()));
return buttonBox;
}
void QDesignerPromotionDialog::slotUpdateFromWidgetDatabase() {
m_model->updateFromWidgetDatabase();
m_treeView->expandAll();
m_removeButton->setEnabled(false);
}
void QDesignerPromotionDialog::delayedUpdateFromWidgetDatabase() {
QTimer::singleShot(0, this, SLOT(slotUpdateFromWidgetDatabase()));
}
const QStringList &QDesignerPromotionDialog::baseClassNames(const QDesignerPromotionInterface *promotion) {
typedef QList<QDesignerWidgetDataBaseItemInterface *> WidgetDataBaseItemList;
static QStringList rc;
if (rc.empty()) {
// Convert the item list into a string list.
const WidgetDataBaseItemList dbItems = promotion->promotionBaseClasses();
const WidgetDataBaseItemList::const_iterator cend = dbItems.constEnd();
for (WidgetDataBaseItemList::const_iterator it = dbItems.constBegin() ; it != cend; ++it) {
rc.push_back( (*it)->name());
}
}
return rc;
}
void QDesignerPromotionDialog::slotAcceptPromoteTo() {
Q_ASSERT(m_mode == ModeEditChooseClass);
unsigned flags;
// Ok pressed: Promote to selected class
if (QDesignerWidgetDataBaseItemInterface *dbItem = databaseItemAt(m_treeView->selectionModel()->selection(), flags)) {
if (flags & CanPromote) {
*m_promoteTo = dbItem ->name();
accept();
}
}
}
void QDesignerPromotionDialog::slotRemove() {
unsigned flags;
QDesignerWidgetDataBaseItemInterface *dbItem = databaseItemAt(m_treeView->selectionModel()->selection(), flags);
if (!dbItem || (flags & Referenced))
return;
QString errorMessage;
if (m_promotion->removePromotedClass(dbItem->name(), &errorMessage)) {
slotUpdateFromWidgetDatabase();
} else {
displayError(errorMessage);
}
}
void QDesignerPromotionDialog::slotSelectionChanged(const QItemSelection &selected, const QItemSelection &) {
// Enable deleting non-referenced items
unsigned flags;
const QDesignerWidgetDataBaseItemInterface *dbItem = databaseItemAt(selected, flags);
m_removeButton->setEnabled(dbItem && !(flags & Referenced));
// In choose mode, can we promote to the class?
if (m_mode == ModeEditChooseClass) {
const bool enablePromoted = flags & CanPromote;
m_buttonBox->button(QDialogButtonBox::Ok)->setEnabled(enablePromoted);
m_buttonBox->button(QDialogButtonBox::Ok)->setDefault(enablePromoted);
}
// different base?
if (dbItem) {
const QString baseClass = dbItem->extends();
if (baseClass != m_lastSelectedBaseClass) {
m_lastSelectedBaseClass = baseClass;
emit selectedBaseClassChanged(m_lastSelectedBaseClass);
}
}
}
QDesignerWidgetDataBaseItemInterface *QDesignerPromotionDialog::databaseItemAt(const QItemSelection &selected, unsigned &flags) const {
flags = 0;
const QModelIndexList indexes = selected.indexes();
if (indexes.empty())
return 0;
bool referenced;
QDesignerWidgetDataBaseItemInterface *dbItem = m_model->databaseItemAt(indexes.front(), &referenced);
if (dbItem) {
if (referenced)
flags |= Referenced;
// In choose mode, can we promote to the class?
if (m_mode == ModeEditChooseClass && dbItem && dbItem->isPromoted() && dbItem->extends() == m_promotableWidgetClassName)
flags |= CanPromote;
}
return dbItem;
}
void QDesignerPromotionDialog::slotNewPromotedClass(const PromotionParameters &p, bool *ok) {
QString errorMessage;
*ok = m_promotion->addPromotedClass(p.m_baseClass, p.m_className, p.m_includeFile, &errorMessage);
if (*ok) {
// update and select
slotUpdateFromWidgetDatabase();
const QModelIndex newClassIndex = m_model->indexOfClass(p.m_className);
if (newClassIndex.isValid()) {
m_treeView->selectionModel()->select(newClassIndex, QItemSelectionModel::SelectCurrent|QItemSelectionModel::Rows);
}
} else {
displayError(errorMessage);
}
}
void QDesignerPromotionDialog::slotIncludeFileChanged(QDesignerWidgetDataBaseItemInterface *dbItem, const QString &includeFile) {
if (includeFile.isEmpty()) {
delayedUpdateFromWidgetDatabase();
return;
}
if (dbItem->includeFile() == includeFile)
return;
QString errorMessage;
if (!m_promotion->setPromotedClassIncludeFile(dbItem->name(), includeFile, &errorMessage)) {
displayError(errorMessage);
delayedUpdateFromWidgetDatabase();
}
}
void QDesignerPromotionDialog::slotClassNameChanged(QDesignerWidgetDataBaseItemInterface *dbItem, const QString &newName) {
if (newName.isEmpty()) {
delayedUpdateFromWidgetDatabase();
return;
}
const QString oldName = dbItem->name();
if (newName == oldName)
return;
QString errorMessage;
if (!m_promotion->changePromotedClassName(oldName , newName, &errorMessage)) {
displayError(errorMessage);
delayedUpdateFromWidgetDatabase();
}
}
void QDesignerPromotionDialog::slotTreeViewContextMenu(const QPoint &pos) {
unsigned flags;
const QDesignerWidgetDataBaseItemInterface *dbItem = databaseItemAt(m_treeView->selectionModel()->selection(), flags);
if (!dbItem)
return;
QMenu menu;
QAction *signalSlotAction = menu.addAction(tr("Change signals/slots..."));
connect(signalSlotAction, SIGNAL(triggered()), this, SLOT(slotEditSignalsSlots()));
menu.exec(m_treeView->viewport()->mapToGlobal(pos));
}
void QDesignerPromotionDialog::slotEditSignalsSlots() {
unsigned flags;
const QDesignerWidgetDataBaseItemInterface *dbItem = databaseItemAt(m_treeView->selectionModel()->selection(), flags);
if (!dbItem)
return;
SignalSlotDialog::editPromotedClass(m_core, dbItem->name(), this);
}
void QDesignerPromotionDialog::displayError(const QString &message) {
m_core->dialogGui()->message(this, QDesignerDialogGuiInterface::PromotionErrorMessage, QMessageBox::Warning,
tr("%1 - Error").arg(windowTitle()), message, QMessageBox::Close);
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
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