qdesigner_promotiondialog.cpp

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/*
TRANSLATOR qdesigner_internal::QDesignerPromotionDialog
*/

#include "qdesigner_promotiondialog_p.h"
#include "promotionmodel_p.h"
#include "iconloader_p.h"
#include "widgetdatabase_p.h"

#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerPromotionInterface>
#include <QtDesigner/QDesignerWidgetDataBaseItemInterface>

#include <QtCore/QTimer>
#include <QtGui/QVBoxLayout>
#include <QtGui/QHBoxLayout>
#include <QtGui/QDialogButtonBox>
#include <QtGui/QTreeView>
#include <QtGui/QHeaderView>
#include <QtGui/QPushButton>
#include <QtGui/QItemSelectionModel>
#include <QtGui/QItemSelection>
#include <QtGui/QMessageBox>
#include <QtGui/QComboBox>
#include <QtGui/QLineEdit>
#include <QtGui/QCheckBox>
#include <QtGui/QRegExpValidator>
#include <QtGui/QLabel>
#include <QtGui/QSpacerItem>


// Add a row consisting of widget and a description label to a grid.
static void addGridRow(const QString &description, QGridLayout *gridLayout, QWidget *w, int &row) {
    QLabel *label = new QLabel(description);
    gridLayout->addWidget(label, row, 0);
    gridLayout->addWidget(w, row, 1);
    ++row;
}

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
        QGridLayout *gridLayout = new QGridLayout();
        int row = 0;
        addGridRow(tr("Base class name:"),     gridLayout, m_baseClassCombo, row);
        addGridRow(tr("Promoted class name:"), gridLayout, m_classNameEdit, row);
        addGridRow(tr("Header file:"),         gridLayout, m_includeFileEdit, row);
        addGridRow(tr("Global include"),       gridLayout, m_globalIncludeCheckBox, row);
        hboxLayout->addLayout(gridLayout);
        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_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);