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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#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/abstractformeditor.h>
#include <QtDesigner/abstractmetadatabase.h>
#include <QtWidgets/qapplication.h>
#include <QtWidgets/qlayout.h>
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(nullptr)
{
}
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);
}
LayoutAlignmentCommand::LayoutAlignmentCommand(QDesignerFormWindowInterface *formWindow) :
QDesignerFormWindowCommand(QApplication::translate("Command", "Change layout alignment"), formWindow),
m_widget(nullptr)
{
}
bool LayoutAlignmentCommand::init(QWidget *w, Qt::Alignment alignment)
{
bool enabled;
m_newAlignment = alignment;
m_oldAlignment = LayoutAlignmentCommand::alignmentOf(core(), w, &enabled);
m_widget = w;
return enabled;
}
void LayoutAlignmentCommand::redo()
{
LayoutAlignmentCommand::applyAlignment(core(), m_widget, m_newAlignment);
}
void LayoutAlignmentCommand::undo()
{
LayoutAlignmentCommand::applyAlignment(core(), m_widget, m_oldAlignment);
}
// Find out alignment and return whether command is enabled.
Qt::Alignment LayoutAlignmentCommand::alignmentOf(const QDesignerFormEditorInterface *core, QWidget *w, bool *enabledIn)
{
bool managed;
QLayout *layout;
if (enabledIn)
*enabledIn = false;
// Can only work on a managed layout
const LayoutInfo::Type type = LayoutInfo::laidoutWidgetType(core, w, &managed, &layout);
const bool enabled = layout && managed &&
(type == LayoutInfo::HBox || type == LayoutInfo::VBox
|| type == LayoutInfo::Grid);
if (!enabled)
return {};
// Get alignment
const int index = layout->indexOf(w);
Q_ASSERT(index >= 0);
if (enabledIn)
*enabledIn = true;
return layout->itemAt(index)->alignment();
}
void LayoutAlignmentCommand::applyAlignment(const QDesignerFormEditorInterface *core, QWidget *w, Qt::Alignment a)
{
// Find layout and apply to item
QLayout *layout;
LayoutInfo::laidoutWidgetType(core, w, nullptr, &layout);
if (layout) {
const int index = layout->indexOf(w);
if (index >= 0) {
layout->itemAt(index)->setAlignment(a);
layout->update();
}
}
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
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