kexitabledesignerview_p.cpp

/* This file is part of the KDE project
   Copyright (C) 2004-2007 Jaroslaw Staniek <js@iidea.pl>
 
   This program 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 program 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 program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#include "kexitabledesignerview_p.h"
#include "kexitabledesignerview.h"
 
#include <tqlayout.h>
#include <tqlabel.h>
#include <tqsplitter.h>
 
#include <kiconloader.h>
#include <kdebug.h>
#include <tdelocale.h>
#include <tdeaction.h>
#include <tdepopupmenu.h>
#include <tdemessagebox.h>
 
#include <koproperty/set.h>
 
#include <kexidb/cursor.h>
#include <kexidb/tableschema.h>
#include <kexidb/connection.h>
#include <kexidb/utils.h>
#include <kexidb/roweditbuffer.h>
#include <kexidb/error.h>
#include <kexiutils/identifier.h>
#include <kexiproject.h>
#include <keximainwindow.h>
#include <widget/tableview/kexidataawarepropertyset.h>
#include <widget/kexicustompropertyfactory.h>
#include <kexiutils/utils.h>
#include <kexidialogbase.h>
#include <kexitableview.h>
#include "kexitabledesignercommands.h"
 
using namespace KexiTableDesignerCommands;
 
//----------------------------------------------
 
CommandHistory::CommandHistory(TDEActionCollection *actionCollection, bool withMenus)
 : KCommandHistory(actionCollection, withMenus)
{
    // We need ALL the commands because we'll collect reuse their 
    // data before performing alter table, so set that to the maximum, 
    // as KCommandHistory has default = 50.
    setUndoLimit(INT_MAX);
    setRedoLimit(INT_MAX);
}
 
void CommandHistory::addCommand(KCommand *command, bool execute)
{
    KCommandHistory::addCommand(command, execute);
    m_commandsToUndo.append(command);
}
 
void CommandHistory::undo()
{
    if (!m_commandsToUndo.isEmpty()) {
        KCommand * cmd = m_commandsToUndo.take( m_commandsToUndo.count()-1 );
        m_commandsToRedo.append( cmd );
    }
    KCommandHistory::undo();
}
 
void CommandHistory::redo()
{
    if (!m_commandsToRedo.isEmpty()) {
        KCommand * cmd = m_commandsToRedo.take( m_commandsToRedo.count()-1 );
        m_commandsToUndo.append( cmd );
    }
    KCommandHistory::redo();
}
 
void CommandHistory::clear() {
    KCommandHistory::clear(); m_commandsToUndo.clear();
}
 
//----------------------------------------------
 
KexiTableDesignerViewPrivate::KexiTableDesignerViewPrivate(KexiTableDesignerView* aDesignerView)
 : designerView(aDesignerView)
 , sets(0)
 , uniqueIdCounter(0)
 , dontAskOnStoreData(false)
 , slotTogglePrimaryKeyCalled(false)
 , primaryKeyExists(false)
 , slotPropertyChanged_primaryKey_enabled(true)
 , slotPropertyChanged_subType_enabled(true)
 , addHistoryCommand_in_slotPropertyChanged_enabled(true)
 , addHistoryCommand_in_slotRowUpdated_enabled(true)
 , addHistoryCommand_in_slotAboutToDeleteRow_enabled(true)
 , addHistoryCommand_in_slotRowInserted_enabled(true)
 , slotBeforeCellChanged_enabled(true)
 , tempStoreDataUsingRealAlterTable(false)
{
    historyActionCollection = new TDEActionCollection((TQWidget*)0,"");
    history = new CommandHistory(historyActionCollection, true);
 
    internalPropertyNames.insert("subType",(char*)1);
    internalPropertyNames.insert("uid",(char*)1);
    internalPropertyNames.insert("newrow",(char*)1);
    internalPropertyNames.insert("rowSource",(char*)1);
    internalPropertyNames.insert("rowSourceType",(char*)1);
    internalPropertyNames.insert("boundColumn",(char*)1);
    internalPropertyNames.insert("visibleColumn",(char*)1);
}
 
KexiTableDesignerViewPrivate::~KexiTableDesignerViewPrivate() {
    delete sets;
    delete historyActionCollection;
    delete history;
}
 
int KexiTableDesignerViewPrivate::generateUniqueId()
{
    return ++uniqueIdCounter;
}
 
void KexiTableDesignerViewPrivate::setPropertyValueIfNeeded( 
    const KoProperty::Set& set, const TQCString& propertyName, 
    const TQVariant& newValue, const TQVariant& oldValue, CommandGroup* commandGroup, 
    bool forceAddCommand, bool rememberOldValue,
    TQStringList* const slist, TQStringList* const nlist)
{
    KoProperty::Property& property = set[propertyName];
 
    KoProperty::Property::ListData *oldListData = property.listData() ? 
        new KoProperty::Property::ListData(*property.listData()) : 0; //remember because we'll change list data soon
    if (slist && nlist) {
        if (slist->isEmpty() || nlist->isEmpty()) {
            property.setListData(0);
        }
        else {
            property.setListData(*slist, *nlist);
        }
    }
    if (oldValue.type() == newValue.type() 
        && (oldValue == newValue || (!oldValue.isValid() && !newValue.isValid()))
        && !forceAddCommand)
    {
        return;
    }
 
    const bool prev_addHistoryCommand_in_slotPropertyChanged_enabled 
        = addHistoryCommand_in_slotPropertyChanged_enabled; //remember
    addHistoryCommand_in_slotPropertyChanged_enabled = false;
    if (property.value() != newValue)
        property.setValue( newValue, rememberOldValue );
    if (commandGroup) {
        commandGroup->addCommand(
            new ChangeFieldPropertyCommand( designerView, set, propertyName, oldValue, newValue,
                oldListData, property.listData()) );
    }
    delete oldListData;
    addHistoryCommand_in_slotPropertyChanged_enabled 
        = prev_addHistoryCommand_in_slotPropertyChanged_enabled; //restore
}
 
void KexiTableDesignerViewPrivate::setPropertyValueIfNeeded( 
    const KoProperty::Set& set, const TQCString& propertyName, 
    const TQVariant& newValue, CommandGroup* commandGroup, 
    bool forceAddCommand, bool rememberOldValue,
    TQStringList* const slist, TQStringList* const nlist)
{
    KoProperty::Property& property = set[propertyName];
    TQVariant oldValue( property.value() );
    setPropertyValueIfNeeded( set, propertyName, newValue, property.value(), 
        commandGroup, forceAddCommand, rememberOldValue, slist, nlist);
}
 
void KexiTableDesignerViewPrivate::setVisibilityIfNeeded( const KoProperty::Set& set, KoProperty::Property* prop, 
    bool visible, bool &changed, CommandGroup *commandGroup )
{
    if (prop->isVisible() != visible) {
        if (commandGroup) {
            commandGroup->addCommand( 
                new ChangePropertyVisibilityCommand( designerView, set, prop->name(), visible ) );
        }
        prop->setVisible( visible );
        changed = true;
    }
}
 
bool KexiTableDesignerViewPrivate::updatePropertiesVisibility(KexiDB::Field::Type fieldType, KoProperty::Set &set,
    CommandGroup *commandGroup)
{
    bool changed = false;
    KoProperty::Property *prop;
    bool visible;
    
    prop = &set["subType"];
    kexipluginsdbg << "subType=" << prop->value().toInt() << " type=" << set["type"].value().toInt()<< endl;
 
    //if there is no more than 1 subType name or it's a PK: hide the property
    visible = (prop->listData() && prop->listData()->keys.count() > 1 /*disabled || isObjectTypeGroup*/)
        && set["primaryKey"].value().toBool()==false;
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
 
    prop = &set["objectType"];
    const bool isObjectTypeGroup = set["type"].value().toInt() == (int)KexiDB::Field::BLOB; // used only for BLOBs
    visible = isObjectTypeGroup;
    setVisibilityIfNeeded( set, prop,  visible, changed, commandGroup );
 
    prop = &set["unsigned"];
    visible = KexiDB::Field::isNumericType(fieldType);
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
 
    prop = &set["length"];
    visible = (fieldType == KexiDB::Field::Text);
    if (prop->isVisible()!=visible) {
//              prop->setVisible( visible );
        //update the length when it makes sense
        const int lengthToSet = visible ? KexiDB::Field::defaultTextLength() : 0;
        setPropertyValueIfNeeded( set, "length", lengthToSet, 
            commandGroup, false, false  );
//      if (lengthToSet != prop->value().toInt())
//          prop->setValue( lengthToSet, false );
//              changed = true;
    }
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
#ifndef KEXI_NO_UNFINISHED
    prop = &set["precision"];
    visible = KexiDB::Field::isFPNumericType(fieldType);
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
#endif
    prop = &set["visibleDecimalPlaces"];
    visible = KexiDB::supportsVisibleDecimalPlacesProperty(fieldType);
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
 
    prop = &set["unique"];
    visible = fieldType != KexiDB::Field::BLOB;
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
 
    prop = &set["indexed"];
    visible = fieldType != KexiDB::Field::BLOB;
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
 
    prop = &set["allowEmpty"];
    visible = KexiDB::Field::hasEmptyProperty(fieldType);
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
 
    prop = &set["autoIncrement"];
    visible = KexiDB::Field::isAutoIncrementAllowed(fieldType);
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );

#ifdef KEXI_NO_UNFINISHED
    prop = &set["defaultValue"];
    visible = !isObjectTypeGroup;
    setVisibilityIfNeeded( set, prop, visible, changed, commandGroup );
#endif
 
    return changed;
}
 
TQString KexiTableDesignerViewPrivate::messageForSavingChanges(bool &emptyTable, bool skipWarning)
{
    KexiDB::Connection *conn = designerView->mainWin()->project()->dbConnection();
    bool ok;
    emptyTable = conn->isEmpty( *designerView->tempData()->table, ok ) && ok;
    return i18n("Do you want to save the design now?")
    + ( (emptyTable || skipWarning) ? TQString() :
        (TQString("\n\n") + designerView->part()->i18nMessage(":additional message before saving design", 
        designerView->parentDialog())) );
}
 
void KexiTableDesignerViewPrivate::updateIconForItem(KexiTableItem &item, KoProperty::Set& set)
{
    TQVariant icon;
    if (!set["rowSource"].value().toString().isEmpty() && !set["rowSourceType"].value().toString().isEmpty())
        icon = "combo";
    //show/hide icon in the table
    view->KexiDataAwareObjectInterface::data()->clearRowEditBuffer();
    view->KexiDataAwareObjectInterface::data()->updateRowEditBuffer(&item, COLUMN_ID_ICON, icon);
    view->KexiDataAwareObjectInterface::data()->saveRowChanges(item, true);
}
 
#include "kexitabledesignerview_p.moc"