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koffice/kexi/plugins/forms/kexiformscrollview.cpp

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/* This file is part of the KDE project
Copyright (C) 2004 Cedric Pasteur <cedric.pasteur@free.fr>
Copyright (C) 2004-2006 Jaroslaw Staniek <js@iidea.pl>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "kexiformscrollview.h"
//#include "kexiformview.h"
#include <formeditor/form.h>
#include <formeditor/formmanager.h>
#include <formeditor/objecttree.h>
#include <formeditor/commands.h>
#include <widget/utils/kexirecordmarker.h>
#include <kpopupmenu.h>
#include <kdebug.h>
KexiFormScrollView::KexiFormScrollView(TQWidget *tqparent, bool preview)
: KexiScrollView(tqparent, preview)
, KexiRecordNavigatorHandler()
, KexiSharedActionClient()
, KexiDataAwareObjectInterface()
, KexiFormDataProvider()
, KexiFormEventHandler()
{
m_currentLocalSortColumn = -1; /* no column */
m_localSortingOrder = -1; /* no sorting */
m_previousItem = 0;
m_navPanel = m_scrollViewNavPanel; //copy this pointer from KexiScrollView
if (preview) {
setRecordNavigatorVisible(true);
//tmp
// recordNavigator()->setEditingIndicatorEnabled(true);
// recordNavigator()->showEditingIndicator(true);
}
connect(this, TQT_SIGNAL(resizingStarted()), this, TQT_SLOT(slotResizingStarted()));
m_popupMenu = new KPopupMenu(this, "contextMenu");
// setFocusPolicy(NoFocus);
}
KexiFormScrollView::~KexiFormScrollView()
{
if (m_owner)
delete m_data;
m_data = 0;
}
void
KexiFormScrollView::show()
{
KexiScrollView::show();
#if 0 //moved to KexiFormView, OK?
//now get resize mode settings for entire form
if (m_preview) {
KexiFormView* fv = dynamic_cast<KexiFormView*>(tqparent());
int resizeMode = fv ? fv->resizeMode() : KexiFormView::ResizeAuto;
if (resizeMode == KexiFormView::ResizeAuto)
setResizePolicy(AutoOneFit);
}
#endif
}
void
KexiFormScrollView::slotResizingStarted()
{
if(m_form && KFormDesigner::FormManager::self())
setSnapToGrid(KFormDesigner::FormManager::self()->snapWidgetsToGrid(), m_form->gridSize());
else
setSnapToGrid(false);
}
int KexiFormScrollView::rowsPerPage() const
{
//! @todo
return 10;
}
void KexiFormScrollView::selectCellInternal()
{
//m_currentItem is already set by KexiDataAwareObjectInterface::setCursorPosition()
if (m_currentItem) {
if (m_currentItem!=m_previousItem) {
fillDataItems(*m_currentItem, cursorAtNewRow());
m_previousItem = m_currentItem;
}
}
else {
m_previousItem = 0;
}
}
void KexiFormScrollView::ensureCellVisible(int row, int col/*=-1*/)
{
Q_UNUSED( row );
Q_UNUSED( col );
//! @todo
// if (m_currentItem)
//fillDataItems(*m_currentItem);
// if (m_form->tabStops()->first() && m_form->tabStops()->first()->widget())
// m_form->tabStops()->first()->widget()->setFocus();
}
void KexiFormScrollView::moveToRecordRequested(uint r)
{
//! @todo
selectRow(r);
}
void KexiFormScrollView::moveToLastRecordRequested()
{
//! @todo
selectLastRow();
}
void KexiFormScrollView::moveToPreviousRecordRequested()
{
//! @todo
selectPrevRow();
}
void KexiFormScrollView::moveToNextRecordRequested()
{
//! @todo
selectNextRow();
}
void KexiFormScrollView::moveToFirstRecordRequested()
{
//! @todo
selectFirstRow();
}
void KexiFormScrollView::clearColumnsInternal(bool tqrepaint)
{
Q_UNUSED( tqrepaint );
//! @todo
}
void KexiFormScrollView::addHeaderColumn(const TQString& caption, const TQString& description,
const TQIconSet& icon, int width)
{
Q_UNUSED( caption );
Q_UNUSED( description );
Q_UNUSED( icon );
Q_UNUSED( width );
//! @todo
}
int KexiFormScrollView::currentLocalSortingOrder() const
{
//! @todo
return m_localSortingOrder;
}
int KexiFormScrollView::currentLocalSortColumn() const
{
return m_currentLocalSortColumn;
}
void KexiFormScrollView::setLocalSortingOrder(int col, int order)
{
//! @todo
m_currentLocalSortColumn = col;
m_localSortingOrder = order;
}
void KexiFormScrollView::sortColumnInternal(int col, int order)
{
Q_UNUSED( col );
Q_UNUSED( order );
//! @todo
}
void KexiFormScrollView::updateGUIAfterSorting()
{
//! @todo
}
void KexiFormScrollView::createEditor(int row, int col, const TQString& addText,
bool removeOld)
{
Q_UNUSED( row );
Q_UNUSED( addText );
Q_UNUSED( removeOld );
if (isReadOnly()) {
kexipluginsdbg << "KexiFormScrollView::createEditor(): DATA IS READ ONLY!"<<endl;
return;
}
if (column( col )->isReadOnly()) {
kexipluginsdbg << "KexiFormScrollView::createEditor(): COL IS READ ONLY!"<<endl;
return;
}
//! @todo
const bool startRowEdit = !m_rowEditing; //remember if we're starting row edit
if (!m_rowEditing) {
//we're starting row editing session
m_data->clearRowEditBuffer();
m_rowEditing = true;
//indicate on the vheader that we are editing:
if (m_verticalHeader)
m_verticalHeader->setEditRow(m_curRow);
if (isInsertingEnabled() && m_currentItem==m_insertItem) {
//we should know that we are in state "new row editing"
m_newRowEditing = true;
//'insert' row editing: show another row after that:
m_data->append( m_insertItem );
//new empty insert item
m_insertItem = m_data->createItem(); //new KexiTableItem(dataColumns());
// updateContents();
if (m_verticalHeader)
m_verticalHeader->addLabel();
// m_verticalHeaderAlreadyAdded = true;
updateWidgetContentsSize();
//refr. current and next row
// updateContents(columnPos(0), rowPos(row), viewport()->width(), d->rowHeight*2);
//js: warning this breaks behaviour (cursor is skipping, etc.): tqApp->processEvents(500);
// ensureVisible(columnPos(m_curCol), rowPos(row+1)+d->rowHeight-1, columnWidth(m_curCol), d->rowHeight);
// m_verticalHeader->setOffset(contentsY());
}
}
m_editor = editor(col); //m_dataItems.at(col);
if (!m_editor)
return;
if (startRowEdit) {
recordNavigator()->showEditingIndicator(true);
// recordNavigator()->updateButtons(); //refresh 'next btn'
emit rowEditStarted(m_curRow);
}
}
KexiDataItemInterface *KexiFormScrollView::editor( int col, bool ignoreMissingEditor )
{
Q_UNUSED( ignoreMissingEditor );
if (!m_data || col<0 || col>=columns())
return 0;
return dynamic_cast<KexiFormDataItemInterface*>(dbFormWidget()->orderedDataAwareWidgets()->at( col ));
// KexiFormDataItemInterface *item = m_dataItems.at(col);
//return item;
/*
KexiTableViewColumn *tvcol = m_data->column(col);
// int t = tvcol->field->type();
//find the editor for this column
KexiDataItemInterface *editor = d->editors[ tvcol ];
if (editor)
return editor;
//not found: create
// editor = KexiCellEditorFactory::createEditor(*m_data->column(col)->field, this);
editor = KexiCellEditorFactory::createEditor(*m_data->column(col), this);
if (!editor) {//create error!
if (!ignoreMissingEditor) {
//js TODO: show error???
cancelRowEdit();
}
return 0;
}
editor->hide();
connect(editor,TQT_SIGNAL(editRequested()),this,TQT_SLOT(slotEditRequested()));
connect(editor,TQT_SIGNAL(cancelRequested()),this,TQT_SLOT(cancelEditor()));
connect(editor,TQT_SIGNAL(acceptRequested()),this,TQT_SLOT(acceptEditor()));
editor->resize(columnWidth(col)-1, rowHeight()-1);
editor->installEventFilter(this);
if (editor->widget())
editor->widget()->installEventFilter(this);
//store
d->editors.insert( tvcol, editor );
return editor;*/
}
void KexiFormScrollView::editorShowFocus( int row, int col )
{
Q_UNUSED( row );
Q_UNUSED( col );
//! @todo
// if (m_currentItem)
// m_provider->fillDataItems(*m_currentItem);
}
void KexiFormScrollView::updateCell(int row, int col)
{
Q_UNUSED( row );
Q_UNUSED( col );
//! @todo
}
void KexiFormScrollView::updateCurrentCell()
{
}
void KexiFormScrollView::updateRow(int row)
{
Q_UNUSED(row)
//! @todo
}
void KexiFormScrollView::updateWidgetContents()
{
//! @todo
}
void KexiFormScrollView::updateWidgetContentsSize()
{
//! @todo
}
void KexiFormScrollView::updateWidgetScrollBars()
{
//! @todo
}
void KexiFormScrollView::slotRowRepaintRequested(KexiTableItem& item)
{
Q_UNUSED( item );
//! @todo
}
/*void KexiFormScrollView::slotAboutToDeleteRow(KexiTableItem& item,
KexiDB::ResultInfo* result, bool tqrepaint)
{
//! @todo
}*/
/*void KexiFormScrollView::slotRowDeleted()
{
//! @todo
}*/
void KexiFormScrollView::slotRowInserted(KexiTableItem *item, bool tqrepaint)
{
Q_UNUSED( item );
Q_UNUSED( tqrepaint );
//! @todo
}
void KexiFormScrollView::slotRowInserted(KexiTableItem *item, uint row, bool tqrepaint)
{
Q_UNUSED( item );
Q_UNUSED( row );
Q_UNUSED( tqrepaint );
//! @todo
}
void KexiFormScrollView::slotRowsDeleted( const TQValueList<int> & )
{
//! @todo
}
KexiDBForm* KexiFormScrollView::dbFormWidget() const
{
return dynamic_cast<KexiDBForm*>(m_widget);
}
int KexiFormScrollView::columns() const
{
return dbFormWidget()->orderedDataAwareWidgets()->count(); //m_dataItems.count();
}
/*uint KexiFormScrollView::fieldNumberForColumn(int col)
{
KexiFormDataItemInterface *item = dynamic_cast<KexiFormDataItemInterface*>(dbFormWidget()->orderedDataAwareWidgets()->at( col ));
if (!item)
return -1;
KexiFormDataItemInterfaceToIntMap::ConstIterator it(m_fieldNumbersForDataItems.tqfind( item ));
return it!=m_fieldNumbersForDataItems.constEnd() ? it.data() : -1;
}*/
bool KexiFormScrollView::columnEditable(int col)
{
kexipluginsdbg << "KexiFormScrollView::columnEditable(" << col << ")" << endl;
foreach_list (TQPtrListIterator<KexiFormDataItemInterface>, it, m_dataItems) {
kexipluginsdbg << (dynamic_cast<TQWidget*>(it.current()) ? dynamic_cast<TQWidget*>(it.current())->name() : "" )
<< " " << it.current()->dataSource() << endl;
}
kexipluginsdbg << "-- focus widgets --" << endl;
foreach_list (TQPtrListIterator<TQWidget>, it, *dbFormWidget()->orderedFocusWidgets()) {
kexipluginsdbg << it.current()->name() << endl;
}
kexipluginsdbg << "-- data-aware widgets --" << endl;
foreach_list (TQPtrListIterator<TQWidget>, it, *dbFormWidget()->orderedDataAwareWidgets()) {
kexipluginsdbg << it.current()->name() << endl;
}
//int index = dbFormWidget()->indexForDataItem( item );
// KexiFormDataItemInterface *item1 = dynamic_cast<KexiFormDataItemInterface*>(dbFormWidget()->orderedFocusWidgets()->at( col ));
KexiFormDataItemInterface *item = dynamic_cast<KexiFormDataItemInterface*>(dbFormWidget()->orderedDataAwareWidgets()->at( col ));
if (!item || item->isReadOnly())
return false;
// KexiFormDataItemInterfaceToIntMap::ConstIterator it(m_fieldNumbersForDataItems.tqfind( item ));
// return KexiDataAwareObjectInterface::columnEditable( it!=m_fieldNumbersForDataItems.constEnd() ? it.data() : -1 );
return KexiDataAwareObjectInterface::columnEditable( col );
}
void KexiFormScrollView::valueChanged(KexiDataItemInterface* item)
{
if (!item)
return;
//only signal start editing when no row editing was started already
kexipluginsdbg << "** KexiFormScrollView::valueChanged(): editedItem="
<< (dbFormWidget()->editedItem ? dbFormWidget()->editedItem->value().toString() : TQString())
<< ", "
<< (item ? item->value().toString() : TQString())
<< endl;
if (dbFormWidget()->editedItem!=item) {
kexipluginsdbg << "**>>> dbFormWidget()->editedItem = dynamic_cast<KexiFormDataItemInterface*>(item)" << endl;
dbFormWidget()->editedItem = dynamic_cast<KexiFormDataItemInterface*>(item);
startEditCurrentCell();
}
fillDuplicatedDataItems(dynamic_cast<KexiFormDataItemInterface*>(item), item->value());
//value changed: clear 'default value' mode (e.g. a blue italic text)
dynamic_cast<KexiFormDataItemInterface*>(item)->setDisplayDefaultValue(dynamic_cast<TQWidget*>(item), false);
}
bool KexiFormScrollView::cursorAtNewRow() const
{
return isInsertingEnabled() && ( m_currentItem==m_insertItem || m_newRowEditing );
}
void KexiFormScrollView::initDataContents()
{
KexiDataAwareObjectInterface::initDataContents();
if (m_preview) {
//! @todo here we can react if user wanted to show the navigator
setRecordNavigatorVisible(m_data);
recordNavigator()->setEnabled(m_data);
if (m_data) {
recordNavigator()->setEditingIndicatorEnabled( !isReadOnly() );
recordNavigator()->showEditingIndicator(false);
}
dbFormWidget()->updateReadOnlyFlags();
}
}
KexiTableViewColumn* KexiFormScrollView::column(int col)
{
const int id = fieldNumberForColumn(col);
return (id >= 0) ? m_data->column( id ) : 0;
}
bool KexiFormScrollView::shouldDisplayDefaultValueForItem(KexiFormDataItemInterface* itemIface) const
{
return cursorAtNewRow()
&& !itemIface->columnInfo()->field->defaultValue().isNull()
//?? && (m_editor ? m_editor->value()==itemIface->columnInfo()->field->defaultValue() : true)
&& !itemIface->columnInfo()->field->isAutoIncrement(); // default value defined
}
bool KexiFormScrollView::cancelEditor()
{
if (!dynamic_cast<KexiFormDataItemInterface*>(m_editor))
return false;
if (m_errorMessagePopup)
m_errorMessagePopup->close();
KexiFormDataItemInterface *itemIface = dynamic_cast<KexiFormDataItemInterface*>(m_editor);
itemIface->undoChanges();
const bool displayDefaultValue = shouldDisplayDefaultValueForItem(itemIface);
// now disable/enable "display default value" if needed (do it after setValue(), before setValue() turns it off)
if (itemIface->hasDisplayedDefaultValue() != displayDefaultValue)
itemIface->setDisplayDefaultValue( dynamic_cast<TQWidget*>(itemIface), displayDefaultValue );
fillDuplicatedDataItems(itemIface, m_editor->value());
// this will clear editor pointer and close message popup (if present)
return KexiDataAwareObjectInterface::cancelEditor();
}
void KexiFormScrollView::updateAfterCancelRowEdit()
{
for (TQPtrListIterator<KexiFormDataItemInterface> it(m_dataItems); it.current(); ++it) {
if (dynamic_cast<TQWidget*>(it.current())) {
kexipluginsdbg << "KexiFormScrollView::updateAfterCancelRowEdit(): "
<< dynamic_cast<TQWidget*>(it.current())->className() << " "
<< dynamic_cast<TQWidget*>(it.current())->name() << endl;
}
KexiFormDataItemInterface *itemIface = it.current();
const bool displayDefaultValue = shouldDisplayDefaultValueForItem(itemIface);
itemIface->undoChanges();
if (itemIface->hasDisplayedDefaultValue() != displayDefaultValue)
itemIface->setDisplayDefaultValue( dynamic_cast<TQWidget*>(itemIface), displayDefaultValue );
}
recordNavigator()->showEditingIndicator(false);
dbFormWidget()->editedItem = 0;
}
void KexiFormScrollView::updateAfterAcceptRowEdit()
{
if (!m_currentItem)
return;
recordNavigator()->showEditingIndicator(false);
dbFormWidget()->editedItem = 0;
//update visible data because there could be auto-filled (eg. autonumber) fields
fillDataItems(*m_currentItem, cursorAtNewRow());
m_previousItem = m_currentItem;
}
void KexiFormScrollView::beforeSwitchView()
{
m_editor = 0;
}
void KexiFormScrollView::refreshContentsSize()
{
KexiScrollView::refreshContentsSize();
//only clear cmd history when KexiScrollView::refreshContentsSizeLater() has been called
if (!m_preview && sender()==&m_delayedResize) {
if (m_form)
m_form->clearCommandHistory();
}
}
void KexiFormScrollView::handleDataWidgetAction(const TQString& actionName)
{
TQWidget *w = tqfocusWidget();
KexiFormDataItemInterface *item = 0;
while (w) {
item = dynamic_cast<KexiFormDataItemInterface*>(w);
if (item)
break;
w = w->parentWidget();
}
if (item)
item->handleAction(actionName);
}
void KexiFormScrollView::copySelection()
{
handleDataWidgetAction("edit_copy");
}
void KexiFormScrollView::cutSelection()
{
handleDataWidgetAction("edit_cut");
}
void KexiFormScrollView::paste()
{
handleDataWidgetAction("edit_paste");
}
int KexiFormScrollView::lastVisibleRow() const
{
//! @todo unimplemented for now, this will be used for continuous forms
return -1;
}
#include "kexiformscrollview.moc"