diff options
Diffstat (limited to 'tools/designer/src/lib/shared/qdesigner_command2.cpp')
-rw-r--r-- | tools/designer/src/lib/shared/qdesigner_command2.cpp | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/tools/designer/src/lib/shared/qdesigner_command2.cpp b/tools/designer/src/lib/shared/qdesigner_command2.cpp new file mode 100644 index 0000000..db534c0 --- /dev/null +++ b/tools/designer/src/lib/shared/qdesigner_command2.cpp @@ -0,0 +1,159 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the Qt Designer 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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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 are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdesigner_command2_p.h" +#include "formwindowbase_p.h" +#include "layoutinfo_p.h" +#include "qdesigner_command_p.h" +#include "widgetfactory_p.h" +#include "qlayout_widget_p.h" + +#include <QtDesigner/QDesignerFormEditorInterface> +#include <QtDesigner/QDesignerMetaDataBaseInterface> + +#include <QtGui/QApplication> +#include <QtGui/QLayout> + +QT_BEGIN_NAMESPACE + +namespace qdesigner_internal { + +MorphLayoutCommand::MorphLayoutCommand(QDesignerFormWindowInterface *formWindow) : + QDesignerFormWindowCommand(QString(), formWindow), + m_breakLayoutCommand(new BreakLayoutCommand(formWindow)), + m_layoutCommand(new LayoutCommand(formWindow)), + m_newType(LayoutInfo::VBox), + m_layoutBase(0) +{ +} + +MorphLayoutCommand::~MorphLayoutCommand() +{ + delete m_layoutCommand; + delete m_breakLayoutCommand; +} + +bool MorphLayoutCommand::init(QWidget *w, int newType) +{ + int oldType; + QDesignerFormWindowInterface *fw = formWindow(); + if (!canMorph(fw, w, &oldType) || oldType == newType) + return false; + m_layoutBase = w; + m_newType = newType; + // Find all managed widgets + m_widgets.clear(); + const QLayout *layout = LayoutInfo::managedLayout(fw->core(), w); + const int count = layout->count(); + for (int i = 0; i < count ; i++) { + if (QWidget *w = layout->itemAt(i)->widget()) + if (fw->isManaged(w)) + m_widgets.push_back(w); + } + const bool reparentLayoutWidget = false; // leave QLayoutWidget intact + m_breakLayoutCommand->init(m_widgets, m_layoutBase, reparentLayoutWidget); + m_layoutCommand->init(m_layoutBase, m_widgets, static_cast<LayoutInfo::Type>(m_newType), m_layoutBase, reparentLayoutWidget); + setText(formatDescription(core(), m_layoutBase, oldType, newType)); + return true; +} + +bool MorphLayoutCommand::canMorph(const QDesignerFormWindowInterface *formWindow, QWidget *w, int *ptrToCurrentType) +{ + if (ptrToCurrentType) + *ptrToCurrentType = LayoutInfo::NoLayout; + // We want a managed widget or a container page + // with a level-0 managed layout + QDesignerFormEditorInterface *core = formWindow->core(); + QLayout *layout = LayoutInfo::managedLayout(core, w); + if (!layout) + return false; + const LayoutInfo::Type type = LayoutInfo::layoutType(core, layout); + if (ptrToCurrentType) + *ptrToCurrentType = type; + switch (type) { + case LayoutInfo::HBox: + case LayoutInfo::VBox: + case LayoutInfo::Grid: + case LayoutInfo::Form: + return true; + break; + case LayoutInfo::NoLayout: + case LayoutInfo::HSplitter: // Nothing doing + case LayoutInfo::VSplitter: + case LayoutInfo::UnknownLayout: + break; + } + return false; +} + +void MorphLayoutCommand::redo() +{ + m_breakLayoutCommand->redo(); + m_layoutCommand->redo(); + /* Transfer applicable properties which is a cross-section of the modified + * properties except object name. */ + if (const LayoutProperties *properties = m_breakLayoutCommand->layoutProperties()) { + const int oldMask = m_breakLayoutCommand->propertyMask(); + QLayout *newLayout = LayoutInfo::managedLayout(core(), m_layoutBase); + const int newMask = LayoutProperties::visibleProperties(newLayout); + const int applicableMask = (oldMask & newMask) & ~LayoutProperties::ObjectNameProperty; + if (applicableMask) + properties->toPropertySheet(core(), newLayout, applicableMask); + } +} + +void MorphLayoutCommand::undo() +{ + m_layoutCommand->undo(); + m_breakLayoutCommand->undo(); +} + +QString MorphLayoutCommand::formatDescription(QDesignerFormEditorInterface * /* core*/, const QWidget *w, int oldType, int newType) +{ + const QString oldName = LayoutInfo::layoutName(static_cast<LayoutInfo::Type>(oldType)); + const QString newName = LayoutInfo::layoutName(static_cast<LayoutInfo::Type>(newType)); + const QString widgetName = qobject_cast<const QLayoutWidget*>(w) ? w->layout()->objectName() : w->objectName(); + return QApplication::translate("Command", "Change layout of '%1' from %2 to %3").arg(widgetName, oldName, newName); +} + +} // namespace qdesigner_internal + +QT_END_NAMESPACE |