CMake/Source/QtDialog/QCMakeCacheView.cxx

720 lines
18 KiB
C++

/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "QCMakeCacheView.h"
#include <QHBoxLayout>
#include <QHeaderView>
#include <QEvent>
#include <QStyle>
#include <QKeyEvent>
#include <QSortFilterProxyModel>
#include "QCMakeWidgets.h"
static QRegExp AdvancedRegExp[2] = { QRegExp("(false)"), QRegExp("(true|false)") };
// filter for searches
class QCMakeSearchFilter : public QSortFilterProxyModel
{
public:
QCMakeSearchFilter(QObject* o) : QSortFilterProxyModel(o) {}
protected:
bool filterAcceptsRow(int row, const QModelIndex& p) const
{
QStringList strs;
const QAbstractItemModel* m = this->sourceModel();
QModelIndex idx = m->index(row, 0, p);
// if there are no children, get strings for column 0 and 1
if(!m->hasChildren(idx))
{
strs.append(m->data(idx).toString());
idx = m->index(row, 1, p);
strs.append(m->data(idx).toString());
}
else
{
// get strings for children entries to compare with
// instead of comparing with the parent
int num = m->rowCount(idx);
for(int i=0; i<num; i++)
{
QModelIndex tmpidx = m->index(i, 0, idx);
strs.append(m->data(tmpidx).toString());
tmpidx = m->index(i, 1, idx);
strs.append(m->data(tmpidx).toString());
}
}
// check all strings for a match
foreach(QString str, strs)
{
if(str.contains(this->filterRegExp()))
{
return true;
}
}
return false;
}
};
QCMakeCacheView::QCMakeCacheView(QWidget* p)
: QTreeView(p), Init(false)
{
// hook up our model and search/filter proxies
this->CacheModel = new QCMakeCacheModel(this);
this->AdvancedFilter = new QSortFilterProxyModel(this);
this->AdvancedFilter->setSourceModel(this->CacheModel);
this->AdvancedFilter->setFilterRole(QCMakeCacheModel::AdvancedRole);
this->AdvancedFilter->setFilterRegExp(AdvancedRegExp[0]);
this->AdvancedFilter->setDynamicSortFilter(true);
this->SearchFilter = new QCMakeSearchFilter(this);
this->SearchFilter->setSourceModel(this->AdvancedFilter);
this->SearchFilter->setFilterCaseSensitivity(Qt::CaseInsensitive);
this->SearchFilter->setDynamicSortFilter(true);
this->setModel(this->SearchFilter);
// our delegate for creating our editors
QCMakeCacheModelDelegate* delegate = new QCMakeCacheModelDelegate(this);
this->setItemDelegate(delegate);
this->setEditTriggers(QAbstractItemView::DoubleClicked |
QAbstractItemView::SelectedClicked |
QAbstractItemView::EditKeyPressed |
QAbstractItemView::AnyKeyPressed);
// tab, backtab doesn't step through items
this->setTabKeyNavigation(false);
// set up headers and sizes
int h = 0;
QFontMetrics met(this->font());
h = qMax(met.height(), this->style()->pixelMetric(QStyle::PM_IndicatorHeight));
this->header()->setDefaultSectionSize(h + 4);
}
void QCMakeCacheView::showEvent(QShowEvent* e)
{
if(!this->Init)
{
// initialize the table view column size
int colWidth = this->columnWidth(0) + this->columnWidth(1);
this->setColumnWidth(0, colWidth/2);
this->setColumnWidth(1, colWidth/2);
this->Init = true;
}
return QTreeView::showEvent(e);
}
QCMakeCacheModel* QCMakeCacheView::cacheModel() const
{
return this->CacheModel;
}
QModelIndex QCMakeCacheView::moveCursor(CursorAction act,
Qt::KeyboardModifiers mod)
{
// want home/end to go to begin/end of rows, not columns
if(act == MoveHome)
{
return this->model()->index(0, 1);
}
else if(act == MoveEnd)
{
return this->model()->index(this->model()->rowCount()-1, 1);
}
return QTreeView::moveCursor(act, mod);
}
void QCMakeCacheView::setShowAdvanced(bool s)
{
this->AdvancedFilter->setFilterRegExp(
s ? AdvancedRegExp[1] : AdvancedRegExp[0]);
}
bool QCMakeCacheView::showAdvanced() const
{
return this->AdvancedFilter->filterRegExp() == AdvancedRegExp[1];
}
void QCMakeCacheView::setSearchFilter(const QString& s)
{
this->SearchFilter->setFilterFixedString(s);
}
QCMakeCacheModel::QCMakeCacheModel(QObject* p)
: QAbstractItemModel(p),
EditEnabled(true)
{
}
QCMakeCacheModel::~QCMakeCacheModel()
{
}
static uint qHash(const QCMakeProperty& p)
{
return qHash(p.Key);
}
void QCMakeCacheModel::clear()
{
this->setProperties(QCMakePropertyList());
}
void QCMakeCacheModel::setProperties(const QCMakePropertyList& props)
{
QSet<QCMakeProperty> newProps = props.toSet();
QSet<QCMakeProperty> newProps2 = newProps;
QSet<QCMakeProperty> oldProps = this->properties().toSet();
oldProps.intersect(newProps);
newProps.subtract(oldProps);
newProps2.subtract(newProps);
this->Properties.clear();
this->NewProperties.clear();
QMap<QString, QCMakePropertyList> result;
this->breakProperties(newProps, result);
foreach(QString key, result.keys())
{
this->NewProperties.append(QPair<QString, QCMakePropertyList>(key, result.value(key)));
}
result.clear();
this->breakProperties(newProps2, result);
foreach(QString key, result.keys())
{
this->Properties.append(QPair<QString, QCMakePropertyList>(key, result.value(key)));
}
// tell everyone to discard whatever they knew (cached) about this model
this->reset();
}
QString QCMakeCacheModel::prefix(const QString& s)
{
QString prefix = s.section('_', 0, 0);
return prefix;
}
void QCMakeCacheModel::breakProperties(const QSet<QCMakeProperty>& props,
QMap<QString, QCMakePropertyList>& result)
{
// return a map of properties grouped by prefixes, and sorted
foreach(QCMakeProperty p, props)
{
QString prefix = QCMakeCacheModel::prefix(p.Key);
result[prefix].append(p);
}
QMap<QString, QCMakePropertyList>::iterator iter;
for(iter = result.begin(); iter != result.end(); ++iter)
{
qSort(*iter);
}
}
QCMakePropertyList QCMakeCacheModel::properties() const
{
QCMakePropertyList props;
QPair<QString, QCMakePropertyList> l;
foreach(l, this->NewProperties)
{
props += l.second;
}
foreach(l, this->Properties)
{
props += l.second;
}
return props;
}
bool QCMakeCacheModel::insertProperty(QCMakeProperty::PropertyType t,
const QString& name, const QString& description,
const QVariant& value, bool advanced)
{
QCMakeProperty prop;
prop.Key = name;
prop.Value = value;
prop.Help = description;
prop.Type = t;
prop.Advanced = advanced;
// find where to insert it in the new properties section
QString prefix = this->prefix(name);
QList<QPair<QString, QCMakePropertyList> >::iterator iter = this->NewProperties.begin();
while(iter != this->NewProperties.end() && prefix > iter->first)
{
++iter;
}
bool insertedParent = false;
// insert a new parent item for this group of properties with this prefix
// if there isn't one
if(iter == this->NewProperties.end() || iter->first != prefix)
{
int row = iter - this->NewProperties.begin();
this->beginInsertRows(QModelIndex(), row, row);
iter = this->NewProperties.insert(iter, QPair<QString, QCMakePropertyList>(prefix, QCMakePropertyList()));
insertedParent = true;
}
// find where to insert the property in the group of properties
QCMakePropertyList::iterator jter = iter->second.begin();
while(jter != iter->second.end() && name > jter->Key)
{
++jter;
}
QModelIndex idxp = this->index(iter - this->NewProperties.begin(), 0);
if(jter != iter->second.end() && jter->Key == name)
{
// replace existing item
*jter = prop;
QModelIndex idx1 = this->index(jter - iter->second.begin(), 0, idxp);
QModelIndex idx2 = this->index(jter - iter->second.begin(), 1, idxp);
this->dataChanged(idx1, idx2);
}
else
{
// add new item
int row = jter - iter->second.begin();
if(!insertedParent)
{
this->beginInsertRows(idxp, row, row);
}
jter = iter->second.insert(jter, prop);
if(!insertedParent)
{
this->endInsertRows();
}
}
if(insertedParent)
{
this->endInsertRows();
}
return true;
}
void QCMakeCacheModel::setEditEnabled(bool e)
{
this->EditEnabled = e;
}
bool QCMakeCacheModel::editEnabled() const
{
return this->EditEnabled;
}
bool QCMakeCacheModel::hasNewProperties() const
{
return !this->NewProperties.isEmpty();
}
int QCMakeCacheModel::columnCount (const QModelIndex& /*p*/ ) const
{
return 2;
}
bool QCMakeCacheModel::isNewProperty(const QModelIndex& idx) const
{
if(idx.isValid() && idx.internalId())
{
return (idx.internalId() - 1) < this->NewProperties.count();
}
else if(idx.isValid())
{
return idx.row() < this->NewProperties.count();
}
return false;
}
const QCMakeProperty* QCMakeCacheModel::propertyForIndex(const QModelIndex& idx) const
{
const QPair<QString, QCMakePropertyList>* l = this->propertyListForIndex(idx);
if(l && idx.internalId())
{
if(idx.row() < l->second.count())
{
return &l->second[idx.row()];
}
}
return NULL;
}
const QPair<QString, QCMakePropertyList>* QCMakeCacheModel::propertyListForIndex(const QModelIndex& idx) const
{
int row = -1;
if(idx.isValid() && idx.internalId() > 0)
{
row = idx.internalId() - 1;
}
else if(idx.isValid())
{
row = idx.row();
}
if(row != -1)
{
if(row < this->NewProperties.count())
{
return &this->NewProperties[row];
}
row -= this->NewProperties.count();
if(row < this->Properties.count())
{
return &this->Properties[row];
}
}
return NULL;
}
QVariant QCMakeCacheModel::data (const QModelIndex& idx, int role) const
{
const QPair<QString, QCMakePropertyList>* l = this->propertyListForIndex(idx);
const QCMakeProperty* p = propertyForIndex(idx);
if(l && !p)
{
if(idx.column() == 0 && (role == Qt::DisplayRole || role == Qt::EditRole))
{
return l->first;
}
else if(role == QCMakeCacheModel::AdvancedRole)
{
// return true if all subitems are advanced
foreach(QCMakeProperty p, l->second)
{
if(!p.Advanced)
{
return false;
}
}
return true;
}
}
if(l && p)
{
if(idx.column() == 0 && (role == Qt::DisplayRole || role == Qt::EditRole))
{
return p->Key;
}
else if(idx.column() == 0 && role == Qt::ToolTipRole)
{
return p->Key + "\n" + p->Help;
}
else if(idx.column() == 1 && (role == Qt::DisplayRole || role == Qt::EditRole))
{
if(p->Type != QCMakeProperty::BOOL)
{
return p->Value;
}
}
else if(idx.column() == 1 && role == Qt::CheckStateRole)
{
if(p->Type == QCMakeProperty::BOOL)
{
return p->Value.toBool() ? Qt::Checked : Qt::Unchecked;
}
}
else if(role == QCMakeCacheModel::HelpRole)
{
return p->Help;
}
else if(role == QCMakeCacheModel::TypeRole)
{
return p->Type;
}
else if(role == QCMakeCacheModel::AdvancedRole)
{
return p->Advanced;
}
}
if(role == Qt::BackgroundRole && this->isNewProperty(idx))
{
return QBrush(QColor(255,100,100));
}
return QVariant();
}
QModelIndex QCMakeCacheModel::parent (const QModelIndex& idx) const
{
if(idx.isValid() && idx.internalId())
{
return this->createIndex(idx.internalId()-1, 0);
}
return QModelIndex();
}
QModelIndex QCMakeCacheModel::index (int row, int column, const QModelIndex& idx) const
{
if(!idx.isValid() && row < this->rowCount(idx) && column < this->columnCount(idx))
{
// index at root level
return this->createIndex(row, column);
}
else if(idx.isValid() && !idx.internalId() && row < this->rowCount(idx) && column < this->columnCount(idx))
{
// index at sub-item
return this->createIndex(row, column, idx.row()+1);
}
return QModelIndex();
}
bool QCMakeCacheModel::hasChildren (const QModelIndex& idx) const
{
if(idx.isValid() && idx.internalId())
{
return false;
}
return true;
}
int QCMakeCacheModel::rowCount (const QModelIndex& idx) const
{
if(!idx.isValid())
{
int num = this->Properties.count() + this->NewProperties.count();
return num;
}
const QPair<QString, QCMakePropertyList>* l = this->propertyListForIndex(idx);
const QCMakeProperty* p = this->propertyForIndex(idx);
if(l && !p)
{
return l->second.count();
}
return 0;
}
QVariant QCMakeCacheModel::headerData (int section, Qt::Orientation orient, int role) const
{
// return header labels
if(role == Qt::DisplayRole && orient == Qt::Horizontal)
{
return section == 0 ? "Name" : "Value";
}
return QVariant();
}
Qt::ItemFlags QCMakeCacheModel::flags (const QModelIndex& idx) const
{
Qt::ItemFlags f = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
const QCMakeProperty* p = this->propertyForIndex(idx);
// all column 1's are editable
if(p && idx.column() == 1 && this->EditEnabled)
{
f |= Qt::ItemIsEditable;
// booleans are editable in place
if(p->Type == QCMakeProperty::BOOL)
{
f |= Qt::ItemIsUserCheckable;
}
}
return f;
}
bool QCMakeCacheModel::setData (const QModelIndex& idx, const QVariant& value, int role)
{
QCMakeProperty* p = const_cast<QCMakeProperty*>(this->propertyForIndex(idx));
if(p)
{
if(idx.column() == 1 && (role == Qt::DisplayRole || role == Qt::EditRole))
{
p->Value = value.toString();
emit this->dataChanged(idx, idx);
return true;
}
else if(idx.column() == 1 && (role == Qt::CheckStateRole))
{
p->Value = value.toInt() == Qt::Checked;
emit this->dataChanged(idx, idx);
return true;
}
}
return false;
}
QModelIndex QCMakeCacheModel::buddy(const QModelIndex& idx) const
{
const QCMakeProperty* p = this->propertyForIndex(idx);
if(p && idx.column() == 0)
{
if(p->Type != QCMakeProperty::BOOL)
{
return this->index(idx.row(), 1, idx.parent());
}
}
return idx;
}
bool QCMakeCacheModel::removeRows(int row, int count, const QModelIndex& p)
{
// remove parent items
if(!p.isValid())
{
this->beginRemoveRows(p, row, row-1+count);
while(count != 0 && row < this->NewProperties.count())
{
this->NewProperties.removeAt(row);
count--;
}
row -= this->NewProperties.count();
while(count != 0 && row < this->Properties.count())
{
this->Properties.removeAt(row);
count--;
}
this->endRemoveRows();
return true;
}
// get the parent item containing the item to remove
QPair<QString, QCMakePropertyList>* l =
const_cast<QPair<QString, QCMakePropertyList>*>(this->propertyListForIndex(p));
if(!l || l->second.count() < row)
{
return false;
}
// all items under parent item are being removed, remove the parent item too
if(l->second.count() == count && row == 0)
{
return this->removeRows(p.row(), 1, QModelIndex());
}
// remove the sub items
if(l->second.count() >= count + row)
{
this->beginRemoveRows(p, row, row-1+count);
l->second.erase(l->second.begin()+row, l->second.begin()+row+count);
this->endRemoveRows();
return true;
}
return false;
}
QCMakeCacheModelDelegate::QCMakeCacheModelDelegate(QObject* p)
: QItemDelegate(p), FileDialogFlag(false)
{
}
void QCMakeCacheModelDelegate::setFileDialogFlag(bool f)
{
this->FileDialogFlag = f;
}
QWidget* QCMakeCacheModelDelegate::createEditor(QWidget* p,
const QStyleOptionViewItem&, const QModelIndex& idx) const
{
const QAbstractItemModel* model = idx.model();
QModelIndex var = model->index(idx.row(), 0);
QVariant type = idx.data(QCMakeCacheModel::TypeRole);
if(type == QCMakeProperty::BOOL)
{
return NULL;
}
else if(type == QCMakeProperty::PATH)
{
QCMakePathEditor* editor =
new QCMakePathEditor(p,
var.data(Qt::DisplayRole).toString());
QObject::connect(editor, SIGNAL(fileDialogExists(bool)), this,
SLOT(setFileDialogFlag(bool)));
return editor;
}
else if(type == QCMakeProperty::FILEPATH)
{
QCMakeFilePathEditor* editor =
new QCMakeFilePathEditor(p,
var.data(Qt::DisplayRole).toString());
QObject::connect(editor, SIGNAL(fileDialogExists(bool)), this,
SLOT(setFileDialogFlag(bool)));
return editor;
}
return new QLineEdit(p);
}
bool QCMakeCacheModelDelegate::editorEvent(QEvent* e, QAbstractItemModel* model,
const QStyleOptionViewItem& option, const QModelIndex& index)
{
Qt::ItemFlags flags = model->flags(index);
if (!(flags & Qt::ItemIsUserCheckable) || !(option.state & QStyle::State_Enabled)
|| !(flags & Qt::ItemIsEnabled))
{
return false;
}
QVariant value = index.data(Qt::CheckStateRole);
if (!value.isValid())
{
return false;
}
if ((e->type() == QEvent::MouseButtonRelease)
|| (e->type() == QEvent::MouseButtonDblClick))
{
// eat the double click events inside the check rect
if (e->type() == QEvent::MouseButtonDblClick)
{
return true;
}
}
else if (e->type() == QEvent::KeyPress)
{
if(static_cast<QKeyEvent*>(e)->key() != Qt::Key_Space &&
static_cast<QKeyEvent*>(e)->key() != Qt::Key_Select)
{
return false;
}
}
else
{
return false;
}
Qt::CheckState state = (static_cast<Qt::CheckState>(value.toInt()) == Qt::Checked
? Qt::Unchecked : Qt::Checked);
return model->setData(index, state, Qt::CheckStateRole);
}
bool QCMakeCacheModelDelegate::eventFilter(QObject* object, QEvent* event)
{
// workaround for what looks like a bug in Qt on Mac OS X
// where it doesn't create a QWidget wrapper for the native file dialog
// so the Qt library ends up assuming the focus was lost to something else
if(event->type() == QEvent::FocusOut && this->FileDialogFlag)
{
return false;
}
return QItemDelegate::eventFilter(object, event);
}