qdesigner_workbench.cpp

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** This file is part of the Qt Designer of the Qt Toolkit.
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#include "qdesigner_workbench.h"
#include "qdesigner.h"
#include "preferences.h"
#include "qdesigner_actions.h"
#include "qdesigner_toolwindow.h"
#include "qdesigner_formwindow.h"
#include "qdesigner_settings.h"
#include "qdesigner_widgetbox.h"
#include "qdesigner_propertyeditor.h"
#include "qdesigner_objectinspector.h"
#include "qdesigner_signalsloteditor.h"
#include "qdesigner_actioneditor.h"
#include "qdesigner_resourceeditor.h"

#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerFormWindowInterface>
#include <QtDesigner/QDesignerFormWindowManagerInterface>
#include <QtDesigner/QDesignerFormEditorPluginInterface>
#include <QtDesigner/QDesignerWidgetBoxInterface>
#include <QtDesigner/QDesignerMetaDataBaseInterface>

#include <QtDesigner/QDesignerComponents>
#include <QtDesigner/private/qdesigner_integration_p.h>
#include <QtDesigner/private/pluginmanager_p.h>
#include <QtDesigner/private/formwindowbase_p.h>

#include <QtCore/QDir>
#include <QtCore/QFile>
#include <QtCore/QUrl>
#include <QtCore/QTimer>
#include <QtCore/QPluginLoader>
#include <QtCore/qdebug.h>

#include <QtGui/QActionGroup>
#include <QtGui/QCloseEvent>
#include <QtGui/QDesktopWidget>
#include <QtGui/QDockWidget>
#include <QtGui/QMenu>
#include <QtGui/QMenuBar>
#include <QtGui/QMessageBox>
#include <QtGui/QPushButton>
#include <QtGui/QToolBar>
#include <QtGui/QMdiArea>
#include <QtGui/QMdiSubWindow>

static QMdiSubWindow *mdiSubWindowOf(const QWidget *w)
{
    QMdiSubWindow *rc = qobject_cast<QMdiSubWindow *>(w->parentWidget());
    Q_ASSERT(rc);
    return rc;
}

static QDockWidget *dockWidgetOf(const QWidget *w)
{
    for (QWidget *parentWidget = w->parentWidget(); parentWidget ; parentWidget = parentWidget->parentWidget()) {
        if (QDockWidget *dw = qobject_cast<QDockWidget *>(parentWidget)) {
            return dw;
        }
    }
    Q_ASSERT("Dock widget not found");
    return 0;
}

QMdiSubWindow *createFormMdiSubWindow(QMdiArea *a, QDesignerFormWindow *fw, Qt::WindowFlags f, const QKeySequence &designerCloseActionShortCut)
{
    typedef QList<QAction *> ActionList;

    QMdiSubWindow *rc = a->addSubWindow(fw, f);
    // Make action shortcuts respond only if focused to avoid conflicts with designer menu actions
    if (designerCloseActionShortCut == QKeySequence(QKeySequence::Close)) {
        const ActionList systemMenuActions = rc->systemMenu()->actions();
        if (!systemMenuActions.empty()) {
            const ActionList::const_iterator cend = systemMenuActions.constEnd();
            for (ActionList::const_iterator it = systemMenuActions.constBegin(); it != cend; ++it) {
                if ( (*it)->shortcut() == designerCloseActionShortCut) {
                    (*it)->setShortcutContext(Qt::WidgetShortcut);
                    break;
                }
            }
        }
    }
    rc->setMinimumSize(QSize(0, 0));
    return rc;
}

// ------------ QDesignerWorkbench::Position
QDesignerWorkbench::Position::Position(const QMdiSubWindow *mdiSubWindow, const QPoint &mdiAreaOffset) :
    m_minimized(mdiSubWindow->isShaded()),
    m_position(mdiSubWindow->pos() + mdiAreaOffset)
{
}

QDesignerWorkbench::Position::Position(const QDockWidget *dockWidget) :
    m_minimized(dockWidget->isMinimized()),
    m_position(dockWidget->pos())
{
}

QDesignerWorkbench::Position::Position(const QWidget *topLevelWindow, const QPoint &desktopTopLeft)
{
    const QWidget *window =topLevelWindow->window ();
    Q_ASSERT(window);
    m_minimized = window->isMinimized();
    m_position = window->pos() - desktopTopLeft;
}


void QDesignerWorkbench::Position::applyTo(QMdiSubWindow *mdiSubWindow,
                                           const QPoint &mdiAreaOffset) const
{
    // QMdiSubWindow attempts to resize its children to sizeHint() when switching user interface modes.
    // Restore old size
    const QPoint mdiAreaPos =  QPoint(qMax(0, m_position.x() - mdiAreaOffset.x()),
                                      qMax(0, m_position.y() - mdiAreaOffset.y()));
    mdiSubWindow->move(mdiAreaPos);
    const QSize decorationSize = mdiSubWindow->size() - mdiSubWindow->contentsRect().size();
    mdiSubWindow->resize(mdiSubWindow->widget()->size() + decorationSize);
    mdiSubWindow->show();
    if (m_minimized) {
        mdiSubWindow->showShaded();
    }
}

void QDesignerWorkbench::Position::applyTo(QWidget *topLevelWindow, const QPoint &desktopTopLeft) const
{
    QWidget *window = topLevelWindow->window ();
    const QPoint newPos = m_position + desktopTopLeft;
    window->move(newPos);
    if ( m_minimized) {
        topLevelWindow->showMinimized();
    } else {
        topLevelWindow->show();
    }
}

void QDesignerWorkbench::Position::applyTo(QDockWidget *dockWidget) const
{
    dockWidget->widget()->setVisible(true);
    dockWidget->setVisible(!m_minimized);
}


// -------- QDesignerWorkbench

QDesignerWorkbench::QDesignerWorkbench()
    : m_mode(NeutralMode), m_mdiArea(0), m_state(StateInitializing)
{
    initialize();
    applyPreferences(QDesignerSettings().preferences());
    m_state = StateUp;
}

QDesignerWorkbench::~QDesignerWorkbench()
{
    QDesignerSettings settings;
    settings.clearBackup();

    if (m_mode == DockedMode) {
        Q_ASSERT(m_mdiArea != 0);
        QMainWindow *mw = qobject_cast<QMainWindow*>(m_mdiArea->window());
        Q_ASSERT(mw != 0);

        settings.setMainWindowState(mw->saveState(2));
    } else if (m_mode == TopLevelMode) {
        QDesignerToolWindow *widgetBoxWrapper = findToolWindow(core()->widgetBox());
        if (widgetBoxWrapper) {
            settings.setToolBoxState(widgetBoxWrapper->saveState());
        }
    }

    while (!m_toolWindows.isEmpty())
        delete m_toolWindows.takeLast();
}

void QDesignerWorkbench::saveGeometries()
{
    m_Positions.clear();
    switch (m_mode) {
    case NeutralMode:
        break;
    case TopLevelMode: {
        const QPoint desktopOffset = QApplication::desktop()->availableGeometry().topLeft();
        foreach (QDesignerToolWindow *tw, m_toolWindows)
            m_Positions.insert(tw, Position(tw, desktopOffset));
        foreach (QDesignerFormWindow *fw, m_formWindows) {
            m_Positions.insert(fw,  Position(fw, desktopOffset));
        }
    }
        break;
    case DockedMode: {
        const QPoint mdiAreaOffset = m_mdiArea->pos();
        foreach (QDesignerToolWindow *tw, m_toolWindows) {
            m_Positions.insert(tw, Position(dockWidgetOf(tw)));
        }
        foreach (QDesignerFormWindow *fw, m_formWindows) {
            m_Positions.insert(fw, Position(mdiSubWindowOf(fw), mdiAreaOffset));
        }
    }
        break;
    }
}

UIMode QDesignerWorkbench::mode() const
{
    return m_mode;
}

void QDesignerWorkbench::addToolWindow(QDesignerToolWindow *toolWindow)
{
    Q_ASSERT(m_toolWindowExtras.contains(toolWindow) == false);
    Q_ASSERT(toolWindow->windowTitle().isEmpty() == false);

    m_toolWindows.append(toolWindow);

    if (QAction *action = toolWindow->action()) {
        Q_ASSERT(m_toolMenu->actions().isEmpty() == false);

        QList<QAction*> lst = m_toolActions->actions();
        QAction *before = lst.count() ? lst.last() : m_toolMenu->actions().first();
        m_toolMenu->insertAction(before, action);
        m_toolActions->addAction(action);
    }
}

void QDesignerWorkbench::addFormWindow(QDesignerFormWindow *formWindow)
{
    Q_ASSERT(m_formWindowExtras.contains(formWindow) == false);
    // ### Q_ASSERT(formWindow->windowTitle().isEmpty() == false);

    m_formWindows.append(formWindow);


    m_actionManager->setWindowListSeparatorVisible(true);

    if (QAction *action = formWindow->action()) {
        m_windowActions->addAction(action);
        m_windowMenu->addAction(action);
        action->setChecked(true);
    }

    m_actionManager->minimizeAction()->setEnabled(true);
    m_actionManager->minimizeAction()->setChecked(false);
    connect(formWindow, SIGNAL(minimizationStateChanged(QDesignerFormWindowInterface *, bool)),
            this, SLOT(minimizationStateChanged(QDesignerFormWindowInterface *, bool)));

    m_actionManager->editWidgets()->trigger();
}

void QDesignerWorkbench::initialize()
{
    QDesignerSettings settings;
    m_core = QDesignerComponents::createFormEditor(this);

    (void) QDesignerComponents::createTaskMenu(core(), this);

    initializeCorePlugins();
    QDesignerComponents::initializePlugins(core());

    m_toolActions = new QActionGroup(this);
    m_toolActions->setExclusive(false);

    m_windowActions = new QActionGroup(this);
    m_windowActions->setExclusive(true);
    connect(m_windowActions, SIGNAL(triggered(QAction*)), this, SLOT(formWindowActionTriggered(QAction*)));

    m_actionManager = new QDesignerActions(this);

    m_globalMenuBar = new QMenuBar;

    m_fileMenu = m_globalMenuBar->addMenu(tr("&File"));
    foreach (QAction *action, m_actionManager->fileActions()->actions()) {
        m_fileMenu->addAction(action);
        if (action->text() == QDesignerActions::tr("&Open Form...")) {
            QMenu *recentFilesMenu = m_fileMenu->addMenu(tr("&Recent Forms"));
            // Pop the "Recent Files" stuff in here.
            foreach(QAction *recentAction, m_actionManager->recentFilesActions()->actions())
                recentFilesMenu->addAction(recentAction);
        }
    }

    m_editMenu = m_globalMenuBar->addMenu(tr("&Edit"));
    foreach (QAction *action, m_actionManager->editActions()->actions()) {
        m_editMenu->addAction(action);
    }

    m_editMenu->addSeparator();

    foreach (QAction *action, m_actionManager->toolActions()->actions()) {
        m_editMenu->addAction(action);
    }

    m_editMenu->addSeparator();
    m_editMenu->addAction(m_actionManager->preferencesAction());

    m_formMenu = m_globalMenuBar->addMenu(tr("F&orm"));
    foreach (QAction *action, m_actionManager->formActions()->actions()) {
        m_formMenu->addAction(action);
    }

    QMenu *previewSubMenu = new QMenu(tr("Preview in"), m_formMenu);
    m_formMenu->insertMenu(m_actionManager->previewFormAction(), previewSubMenu);

    foreach (QAction *action, m_actionManager->styleActions()->actions()) {
        previewSubMenu->addAction(action);
    }

    m_toolMenu = m_globalMenuBar->addMenu(tr("&Tools"));

    m_toolMenu->addSeparator();

    m_windowMenu = m_globalMenuBar->addMenu(tr("&Window"));
    foreach (QAction *action, m_actionManager->windowActions()->actions()) {
        m_windowMenu->addAction(action);
    }

    m_helpMenu = m_globalMenuBar->addMenu(tr("&Help"));
    foreach (QAction *action, m_actionManager->helpActions()->actions()) {
        m_helpMenu->addAction(action);
    }

    QDesignerToolWindow *tw = new QDesignerWidgetBox(this);
    tw->setObjectName(QLatin1String("qt_designer_widgetbox"));
    addToolWindow(tw);
    tw = new QDesignerObjectInspector(this);
    tw->setObjectName(QLatin1String("qt_designer_objectinspector"));
    addToolWindow(tw);
    tw = new QDesignerPropertyEditor(this);
    tw->setObjectName(QLatin1String("qt_designer_propertyeditor"));
    addToolWindow(tw);
    tw = new QDesignerSignalSlotEditor(this);
    tw->setObjectName(QLatin1String("qt_designer_signalsloteditor"));
    addToolWindow(tw);
    tw = new QDesignerResourceEditor(this);
    tw->setObjectName(QLatin1String("qt_designer_resourceeditor"));
    addToolWindow(tw);
    tw = new QDesignerActionEditor(this);
    tw->setObjectName(QLatin1String("qt_designer_actioneditor"));
    addToolWindow(tw);

    m_integration = new qdesigner_internal::QDesignerIntegration(core(), this);

    // create the toolbars
    m_fileToolBar = new QToolBar;
    m_fileToolBar->setObjectName(QLatin1String("fileToolBar"));
    m_fileToolBar->setWindowTitle(tr("File"));
    foreach (QAction *action, m_actionManager->fileActions()->actions()) {
        if (action->icon().isNull() == false)
            m_fileToolBar->addAction(action);
    }

    m_editToolBar = new QToolBar;
    m_editToolBar->setObjectName(QLatin1String("editToolBar"));
    m_editToolBar->setWindowTitle(tr("Edit"));
    foreach (QAction *action, m_actionManager->editActions()->actions()) {
        if (action->icon().isNull() == false)
            m_editToolBar->addAction(action);
    }

    m_toolToolBar = new QToolBar;
    m_toolToolBar->setObjectName(QLatin1String("toolsToolBar"));
    m_toolToolBar->setWindowTitle(tr("Tools"));
    foreach (QAction *action, m_actionManager->toolActions()->actions()) {
        if (action->icon().isNull() == false)
            m_toolToolBar->addAction(action);
    }

    m_formToolBar = new QToolBar;
    m_formToolBar->setObjectName(QLatin1String("formToolBar"));
    m_formToolBar->setWindowTitle(tr("Form"));
    foreach (QAction *action, m_actionManager->formActions()->actions()) {
        if (action->icon().isNull() == false)
            m_formToolBar->addAction(action);
    }

    QMenu *toolbarMenu = m_toolMenu->addMenu(tr("Toolbars"));
    toolbarMenu->addAction(m_fileToolBar->toggleViewAction());
    toolbarMenu->addAction(m_editToolBar->toggleViewAction());
    toolbarMenu->addAction(m_toolToolBar->toggleViewAction());
    toolbarMenu->addAction(m_formToolBar->toggleViewAction());

    emit initialized();