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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "actionrepository_p.h"
#include "qtresourceview_p.h"
#include "iconloader_p.h"
#include "qdesigner_utils_p.h"
#include <QtDesigner/QDesignerFormEditorInterface>
#include <QtDesigner/QDesignerPropertySheetExtension>
#include <QtDesigner/QExtensionManager>
#include <QtGui/QDrag>
#include <QtGui/QContextMenuEvent>
#include <QtGui/QStandardItemModel>
#include <QtGui/QToolButton>
#include <QtGui/QPixmap>
#include <QtGui/QAction>
#include <QtGui/QHeaderView>
#include <QtGui/QToolBar>
#include <QtGui/QMenu>
#include <QtGui/qevent.h>
#include <QtCore/QSet>
#include <QtCore/QDebug>
Q_DECLARE_METATYPE(QAction*)
QT_BEGIN_NAMESPACE
namespace {
enum { listModeIconSize = 16, iconModeIconSize = 24 };
}
static const char *actionMimeType = "action-repository/actions";
static const char *plainTextMimeType = "text/plain";
static inline QAction *actionOfItem(const QStandardItem* item)
{
return qvariant_cast<QAction*>(item->data(qdesigner_internal::ActionModel::ActionRole));
}
namespace qdesigner_internal {
// ----------- ActionModel
ActionModel::ActionModel(QWidget *parent ) :
QStandardItemModel(parent),
m_emptyIcon(emptyIcon()),
m_core(0)
{
QStringList headers;
headers += tr("Name");
headers += tr("Used");
headers += tr("Text");
headers += tr("Shortcut");
headers += tr("Checkable");
headers += tr("ToolTip");
Q_ASSERT(NumColumns == headers.size());
setHorizontalHeaderLabels(headers);
}
void ActionModel::clearActions()
{
removeRows(0, rowCount());
}
int ActionModel::findAction(QAction *action) const
{
const int rows = rowCount();
for (int i = 0; i < rows; i++)
if (action == actionOfItem(item(i)))
return i;
return -1;
}
void ActionModel::update(int row)
{
Q_ASSERT(m_core);
// need to create the row list ... grrr..
if (row >= rowCount())
return;
QStandardItemList list;
for (int i = 0; i < NumColumns; i++)
list += item(row, i);
setItems(m_core, actionOfItem(list.front()), m_emptyIcon, list);
}
void ActionModel::remove(int row)
{
qDeleteAll(takeRow(row));
}
QModelIndex ActionModel::addAction(QAction *action)
{
Q_ASSERT(m_core);
QStandardItemList items;
const Qt::ItemFlags flags = Qt::ItemIsSelectable|Qt::ItemIsDropEnabled|Qt::ItemIsDragEnabled|Qt::ItemIsEnabled;
QVariant itemData;
itemData.setValue(action);
for (int i = 0; i < NumColumns; i++) {
QStandardItem *item = new QStandardItem;
item->setData(itemData, ActionRole);
item->setFlags(flags);
items.push_back(item);
}
setItems(m_core, action, m_emptyIcon, items);
appendRow(items);
return indexFromItem(items.front());
}
// Find the associated menus and toolbars, ignore toolbuttons
QWidgetList ActionModel::associatedWidgets(const QAction *action)
{
QWidgetList rc = action->associatedWidgets();
for (QWidgetList::iterator it = rc.begin(); it != rc.end(); )
if (qobject_cast<const QMenu *>(*it) || qobject_cast<const QToolBar *>(*it)) {
++it;
} else {
it = rc.erase(it);
}
return rc;
}
// shortcut is a fake property, need to retrieve it via property sheet.
PropertySheetKeySequenceValue ActionModel::actionShortCut(QDesignerFormEditorInterface *core, QAction *action)
{
QDesignerPropertySheetExtension *sheet = qt_extension<QDesignerPropertySheetExtension*>(core->extensionManager(), action);
if (!sheet)
return PropertySheetKeySequenceValue();
return actionShortCut(sheet);
}
PropertySheetKeySequenceValue ActionModel::actionShortCut(const QDesignerPropertySheetExtension *sheet)
{
const int index = sheet->indexOf(QLatin1String("shortcut"));
if (index == -1)
return PropertySheetKeySequenceValue();
return qvariant_cast<PropertySheetKeySequenceValue>(sheet->property(index));
}
void ActionModel::setItems(QDesignerFormEditorInterface *core, QAction *action,
const QIcon &defaultIcon,
QStandardItemList &sl)
{
// Tooltip, mostly for icon view mode
QString firstTooltip = action->objectName();
const QString text = action->text();
if (!text.isEmpty()) {
firstTooltip += QLatin1Char('\n');
firstTooltip += text;
}
Q_ASSERT(sl.size() == NumColumns);
QStandardItem *item = sl[NameColumn];
item->setText(action->objectName());
QIcon icon = action->icon();
if (icon.isNull())
icon = defaultIcon;
item->setIcon(icon);
item->setToolTip(firstTooltip);
item->setWhatsThis(firstTooltip);
// Used
const QWidgetList associatedDesignerWidgets = associatedWidgets(action);
const bool used = !associatedDesignerWidgets.empty();
item = sl[UsedColumn];
item->setCheckState(used ? Qt::Checked : Qt::Unchecked);
if (used) {
QString usedToolTip;
const QString separator = QLatin1String(", ");
const int count = associatedDesignerWidgets.size();
for (int i = 0; i < count; i++) {
if (i)
usedToolTip += separator;
usedToolTip += associatedDesignerWidgets.at(i)->objectName();
}
item->setToolTip(usedToolTip);
} else {
item->setToolTip(QString());
}
// text
item = sl[TextColumn];
item->setText(action->text());
item->setToolTip(action->text());
// shortcut
const QString shortcut = actionShortCut(core, action).value().toString(QKeySequence::NativeText);
item = sl[ShortCutColumn];
item->setText(shortcut);
item->setToolTip(shortcut);
// checkable
sl[CheckedColumn]->setCheckState(action->isCheckable() ? Qt::Checked : Qt::Unchecked);
// ToolTip. This might be multi-line, rich text
QString toolTip = action->toolTip();
item = sl[ToolTipColumn];
item->setToolTip(toolTip);
item->setText(toolTip.replace(QLatin1Char('\n'), QLatin1Char(' ')));
}
QMimeData *ActionModel::mimeData(const QModelIndexList &indexes ) const
{
ActionRepositoryMimeData::ActionList actionList;
QSet<QAction*> actions;
foreach (const QModelIndex &index, indexes)
if (QStandardItem *item = itemFromIndex(index))
if (QAction *action = actionOfItem(item))
actions.insert(action);
return new ActionRepositoryMimeData(actions.toList(), Qt::CopyAction);
}
// Resource images are plain text. The drag needs to be restricted, however.
QStringList ActionModel::mimeTypes() const
{
return QStringList(QLatin1String(plainTextMimeType));
}
QString ActionModel::actionName(int row) const
{
return item(row, NameColumn)->text();
}
bool ActionModel::dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &)
{
if (action != Qt::CopyAction)
return false;
QStandardItem *droppedItem = item(row, column);
if (!droppedItem)
return false;
QtResourceView::ResourceType type;
QString path;
if (!QtResourceView::decodeMimeData(data, &type, &path) || type != QtResourceView::ResourceImage)
return false;
emit resourceImageDropped(path, actionOfItem(droppedItem));
return true;
}
QAction *ActionModel::actionAt(const QModelIndex &index) const
{
if (!index.isValid())
return 0;
QStandardItem *i = itemFromIndex(index);
if (!i)
return 0;
return actionOfItem(i);
}
// helpers
static bool handleImageDragEnterMoveEvent(QDropEvent *event)
{
QtResourceView::ResourceType type;
const bool rc = QtResourceView::decodeMimeData(event->mimeData(), &type) && type == QtResourceView::ResourceImage;
if (rc)
event->acceptProposedAction();
else
event->ignore();
return rc;
}
static void handleImageDropEvent(const QAbstractItemView *iv, QDropEvent *event, ActionModel *am)
{
const QModelIndex index = iv->indexAt(event->pos());
if (!index.isValid()) {
event->ignore();
return;
}
if (!handleImageDragEnterMoveEvent(event))
return;
am->dropMimeData(event->mimeData(), event->proposedAction(), index.row(), 0, iv->rootIndex());
}
// Basically mimic QAbstractItemView's startDrag routine, except that
// another pixmap is used, we don't want the whole row.
void startActionDrag(QWidget *dragParent, ActionModel *model, const QModelIndexList &indexes, Qt::DropActions supportedActions)
{
if (indexes.empty())
return;
QDrag *drag = new QDrag(dragParent);
QMimeData *data = model->mimeData(indexes);
drag->setMimeData(data);
if (ActionRepositoryMimeData *actionMimeData = qobject_cast<ActionRepositoryMimeData *>(data))
drag->setPixmap(ActionRepositoryMimeData::actionDragPixmap(actionMimeData->actionList().front()));
drag->start(supportedActions);
}
// ---------------- ActionTreeView:
ActionTreeView::ActionTreeView(ActionModel *model, QWidget *parent) :
QTreeView(parent),
m_model(model)
{
setDragEnabled(true);
setAcceptDrops(true);
setDropIndicatorShown(true);
setDragDropMode(DragDrop);
setModel(model);
setRootIsDecorated(false);
setTextElideMode(Qt::ElideMiddle);
setModel(model);
connect(this, SIGNAL(activated(QModelIndex)), this, SLOT(slotActivated(QModelIndex)));
connect(header(), SIGNAL(sectionDoubleClicked(int)), this, SLOT(resizeColumnToContents(int)));
setIconSize(QSize(listModeIconSize, listModeIconSize));
}
QAction *ActionTreeView::currentAction() const
{
return m_model->actionAt(currentIndex());
}
void ActionTreeView::filter(const QString &text)
{
const int rowCount = m_model->rowCount();
const bool empty = text.isEmpty();
const QModelIndex parent = rootIndex();
for (int i = 0; i < rowCount; i++)
setRowHidden(i, parent, !empty && !m_model->actionName(i).contains(text, Qt::CaseInsensitive));
}
void ActionTreeView::dragEnterEvent(QDragEnterEvent *event)
{
handleImageDragEnterMoveEvent(event);
}
void ActionTreeView::dragMoveEvent(QDragMoveEvent *event)
{
handleImageDragEnterMoveEvent(event);
}
void ActionTreeView::dropEvent(QDropEvent *event)
{
handleImageDropEvent(this, event, m_model);
}
void ActionTreeView::focusInEvent(QFocusEvent *event)
{
QTreeView::focusInEvent(event);
// Make property editor display current action
if (QAction *a = currentAction())
emit currentChanged(a);
}
void ActionTreeView::contextMenuEvent(QContextMenuEvent *event)
{
emit contextMenuRequested(event, m_model->actionAt(indexAt(event->pos())));
}
void ActionTreeView::currentChanged(const QModelIndex ¤t, const QModelIndex &previous)
{
emit currentChanged(m_model->actionAt(current));
QTreeView::currentChanged(current, previous);
}
void ActionTreeView::slotActivated(const QModelIndex &index)
{
emit activated(m_model->actionAt(index));
}
void ActionTreeView::startDrag(Qt::DropActions supportedActions)
{
startActionDrag(this, m_model, selectedIndexes(), supportedActions);
}
// ---------------- ActionListView:
ActionListView::ActionListView(ActionModel *model, QWidget *parent) :
QListView(parent),
m_model(model)
{
setDragEnabled(true);
setAcceptDrops(true);
setDropIndicatorShown(true);
setDragDropMode(DragDrop);
setModel(model);
setTextElideMode(Qt::ElideMiddle);
connect(this, SIGNAL(activated(QModelIndex)), this, SLOT(slotActivated(QModelIndex)));
// We actually want 'Static' as the user should be able to
// drag away actions only (not to rearrange icons).
// We emulate that by not accepting our own
// drag data. 'Static' causes the list view to disable drag and drop
// on the viewport.
setMovement(Snap);
setViewMode(IconMode);
setIconSize(QSize(iconModeIconSize, iconModeIconSize));
setGridSize(QSize(4 * iconModeIconSize, 2 * iconModeIconSize));
setSpacing(iconModeIconSize / 3);
}
QAction *ActionListView::currentAction() const
{
return m_model->actionAt(currentIndex());
}
void ActionListView::filter(const QString &text)
{
const int rowCount = m_model->rowCount();
const bool empty = text.isEmpty();
for (int i = 0; i < rowCount; i++)
setRowHidden(i, !empty && !m_model->actionName(i).contains(text, Qt::CaseInsensitive));
}
void ActionListView::dragEnterEvent(QDragEnterEvent *event)
{
handleImageDragEnterMoveEvent(event);
}
void ActionListView::dragMoveEvent(QDragMoveEvent *event)
{
handleImageDragEnterMoveEvent(event);
}
void ActionListView::dropEvent(QDropEvent *event)
{
handleImageDropEvent(this, event, m_model);
}
void ActionListView::focusInEvent(QFocusEvent *event)
{
QListView::focusInEvent(event);
// Make property editor display current action
if (QAction *a = currentAction())
emit currentChanged(a);
}
void ActionListView::contextMenuEvent(QContextMenuEvent *event)
{
emit contextMenuRequested(event, m_model->actionAt(indexAt(event->pos())));
}
void ActionListView::currentChanged(const QModelIndex ¤t, const QModelIndex &previous)
{
emit currentChanged(m_model->actionAt(current));
QListView::currentChanged(current, previous);
}
void ActionListView::slotActivated(const QModelIndex &index)
{
emit activated(m_model->actionAt(index));
}
void ActionListView::startDrag(Qt::DropActions supportedActions)
{
startActionDrag(this, m_model, selectedIndexes(), supportedActions);
}
// ActionView
ActionView::ActionView(QWidget *parent) :
QStackedWidget(parent),
m_model(new ActionModel(this)),
m_actionTreeView(new ActionTreeView(m_model)),
m_actionListView(new ActionListView(m_model))
{
addWidget(m_actionListView);
addWidget(m_actionTreeView);
// Wire signals
connect(m_actionTreeView, SIGNAL(contextMenuRequested(QContextMenuEvent*,QAction*)),
this, SIGNAL(contextMenuRequested(QContextMenuEvent*,QAction*)));
connect(m_actionListView, SIGNAL(contextMenuRequested(QContextMenuEvent*,QAction*)),
this, SIGNAL(contextMenuRequested(QContextMenuEvent*,QAction*)));
// make it possible for vs integration to reimplement edit action dialog
// [which it shouldn't do actually]
connect(m_actionListView, SIGNAL(activated(QAction*)), this, SIGNAL(activated(QAction*)));
connect(m_actionTreeView, SIGNAL(activated(QAction*)), this, SIGNAL(activated(QAction*)));
connect(m_actionListView, SIGNAL(currentChanged(QAction*)),this, SLOT(slotCurrentChanged(QAction*)));
connect(m_actionTreeView, SIGNAL(currentChanged(QAction*)),this, SLOT(slotCurrentChanged(QAction*)));
connect(m_model, SIGNAL(resourceImageDropped(QString,QAction*)),
this, SIGNAL(resourceImageDropped(QString,QAction*)));
// sync selection models
QItemSelectionModel *selectionModel = m_actionTreeView->selectionModel();
m_actionListView->setSelectionModel(selectionModel);
connect(selectionModel, SIGNAL(selectionChanged(QItemSelection,QItemSelection)),
this, SIGNAL(selectionChanged(QItemSelection,QItemSelection)));
}
int ActionView::viewMode() const
{
return currentWidget() == m_actionListView ? IconView : DetailedView;
}
void ActionView::setViewMode(int lm)
{
if (viewMode() == lm)
return;
switch (lm) {
case IconView:
setCurrentWidget(m_actionListView);
break;
case DetailedView:
setCurrentWidget(m_actionTreeView);
break;
default:
break;
}
}
void ActionView::slotCurrentChanged(QAction *action)
{
// emit only for currently visible
if (sender() == currentWidget())
emit currentChanged(action);
}
void ActionView::filter(const QString &text)
{
m_actionTreeView->filter(text);
m_actionListView->filter(text);
}
void ActionView::selectAll()
{
m_actionTreeView->selectAll();
}
void ActionView::clearSelection()
{
m_actionTreeView->selectionModel()->clearSelection();
}
void ActionView::setCurrentIndex(const QModelIndex &index)
{
m_actionTreeView->setCurrentIndex(index);
}
QAction *ActionView::currentAction() const
{
return m_actionListView->currentAction();
}
void ActionView::setSelectionMode(QAbstractItemView::SelectionMode sm)
{
m_actionTreeView->setSelectionMode(sm);
m_actionListView->setSelectionMode(sm);
}
QAbstractItemView::SelectionMode ActionView::selectionMode() const
{
return m_actionListView->selectionMode();
}
QItemSelection ActionView::selection() const
{
return m_actionListView->selectionModel()->selection();
}
ActionView::ActionList ActionView::selectedActions() const
{
ActionList rc;
foreach (const QModelIndex &index, selection().indexes())
if (index.column() == 0)
rc += actionOfItem(m_model->itemFromIndex(index));
return rc;
}
// ---------- ActionRepositoryMimeData
ActionRepositoryMimeData::ActionRepositoryMimeData(QAction *a, Qt::DropAction dropAction) :
m_dropAction(dropAction)
{
m_actionList += a;
}
ActionRepositoryMimeData::ActionRepositoryMimeData(const ActionList &al, Qt::DropAction dropAction) :
m_dropAction(dropAction),
m_actionList(al)
{
}
QStringList ActionRepositoryMimeData::formats() const
{
return QStringList(QLatin1String(actionMimeType));
}
QPixmap ActionRepositoryMimeData::actionDragPixmap(const QAction *action)
{
// Try to find a suitable pixmap. Grab either widget or icon.
const QIcon icon = action->icon();
if (!icon.isNull())
return icon.pixmap(QSize(22, 22));
foreach (QWidget *w, action->associatedWidgets())
if (QToolButton *tb = qobject_cast<QToolButton *>(w))
return QPixmap::grabWidget(tb);
// Create a QToolButton
QToolButton *tb = new QToolButton;
tb->setText(action->text());
tb->setToolButtonStyle(Qt::ToolButtonTextOnly);
#ifdef Q_WS_WIN // Force alien off to make adjustSize() take the system minimumsize into account.
tb->createWinId();
#endif
tb->adjustSize();
const QPixmap rc = QPixmap::grabWidget(tb);
tb->deleteLater();
return rc;
}
void ActionRepositoryMimeData::accept(QDragMoveEvent *event) const
{
if (event->proposedAction() == m_dropAction) {
event->acceptProposedAction();
} else {
event->setDropAction(m_dropAction);
event->accept();
}
}
} // namespace qdesigner_internal
QT_END_NAMESPACE
|