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551 lines
16 KiB
551 lines
16 KiB
/* This file is part of the KDE project
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Copyright (C) 2006-2007 Jaroslaw Staniek <js@iidea.pl>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "kexidbcombobox.h"
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#include "kexidblineedit.h"
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#include "../kexiformscrollview.h"
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#include <kcombobox.h>
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#include <kdebug.h>
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#include <kapplication.h>
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#include <tqmetaobject.h>
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#include <tqpainter.h>
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#include <tqstyle.h>
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#include <tqdrawutil.h>
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#include <tqptrdict.h>
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#include <tqcursor.h>
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#include <kexidb/queryschema.h>
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#include <widget/tableview/kexicomboboxpopup.h>
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#include <widget/tableview/kexicelleditorfactory.h>
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#include <kexiutils/utils.h>
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//! @internal
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class KexiDBComboBox::Private
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{
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public:
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Private()
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: popup(0)
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, visibleColumnInfo(0)
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, subWidgetsWithDisabledEvents(0)
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, isEditable(false)
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, buttonPressed(false)
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, mouseOver(false)
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, dataEnteredByHand(true)
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{
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}
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~Private()
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{
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delete subWidgetsWithDisabledEvents;
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subWidgetsWithDisabledEvents = 0;
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}
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KexiComboBoxPopup *popup;
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KComboBox *paintedCombo; //!< fake combo used only to pass it as 'this' for TQStyle (because styles use <static_cast>)
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TQSize sizeHint; //!< A cache for KexiDBComboBox::sizeHint(),
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//!< rebuilt by KexiDBComboBox::fontChange() and KexiDBComboBox::styleChange()
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KexiDB::QueryColumnInfo* visibleColumnInfo;
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TQPtrDict<char> *subWidgetsWithDisabledEvents; //! used to collect subwidget and its children (if isEditable is false)
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bool isEditable : 1; //!< true is the combo box is editable
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bool buttonPressed : 1;
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bool mouseOver : 1;
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bool dataEnteredByHand : 1;
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bool designMode : 1;
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};
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//-------------------------------------
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KexiDBComboBox::KexiDBComboBox(TQWidget *parent, const char *name, bool designMode)
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: KexiDBAutoField(parent, name, designMode, NoLabel)
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, KexiComboBoxBase()
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, d(new Private())
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{
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setMouseTracking(true);
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setFocusPolicy(TQ_WheelFocus);
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installEventFilter(this);
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d->designMode = designMode;
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d->paintedCombo = new KComboBox(this);
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d->paintedCombo->hide();
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d->paintedCombo->move(0,0);
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}
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KexiDBComboBox::~KexiDBComboBox()
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{
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delete d;
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}
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KexiComboBoxPopup *KexiDBComboBox::popup() const
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{
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return d->popup;
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}
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void KexiDBComboBox::setPopup(KexiComboBoxPopup *popup)
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{
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d->popup = popup;
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}
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void KexiDBComboBox::setEditable(bool set)
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{
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if (d->isEditable == set)
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return;
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d->isEditable = set;
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d->paintedCombo->setEditable(set);
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if (set)
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createEditor();
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else {
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delete m_subwidget;
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m_subwidget = 0;
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}
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update();
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}
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bool KexiDBComboBox::isEditable() const
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{
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return d->isEditable;
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}
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void KexiDBComboBox::paintEvent( TQPaintEvent * )
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{
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TQPainter p( this );
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TQColorGroup cg( palette().active() );
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// if ( hasFocus() )
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// cg.setColor(TQColorGroup::Base, cg.highlight());
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// else
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cg.setColor(TQColorGroup::Base, paletteBackgroundColor()); //update base color using (reimplemented) bg color
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p.setPen(cg.text());
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TQStyle::SFlags flags = TQStyle::Style_Default;
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if (isEnabled())
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flags |= TQStyle::Style_Enabled;
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if (hasFocus())
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flags |= TQStyle::Style_HasFocus;
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if (d->mouseOver)
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flags |= TQStyle::Style_MouseOver;
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if ( width() < 5 || height() < 5 ) {
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qDrawShadePanel( &p, rect(), cg, FALSE, 2, &cg.brush( TQColorGroup::Button ) );
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return;
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}
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//! @todo support reverse layout
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//bool reverse = TQApplication::reverseLayout();
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tqstyle().drawComplexControl( TQStyle::CC_ComboBox, &p, d->paintedCombo /*this*/, rect(), cg,
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flags, (uint)TQStyle::SC_All,
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(d->buttonPressed ? TQStyle::SC_ComboBoxArrow : TQStyle::SC_None )
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);
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if (d->isEditable) {
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//if editable, editor paints itself, nothing to do
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}
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else { //not editable: we need to paint the current item
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TQRect editorGeometry( this->editorGeometry() );
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if ( hasFocus() ) {
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if (0==qstrcmp(tqstyle().name(), "windows")) //a hack
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p.fillRect( editorGeometry, cg.brush( TQColorGroup::Highlight ) );
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TQRect r( TQStyle::visualRect( tqstyle().subRect( TQStyle::SR_ComboBoxFocusRect, d->paintedCombo ), this ) );
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r = TQRect(r.left()-1, r.top()-1, r.width()+2, r.height()+2); //enlare by 1 pixel each side to avoid covering by the subwidget
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tqstyle().tqdrawPrimitive( TQStyle::PE_FocusRect, &p,
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r, cg, flags | TQStyle::Style_FocusAtBorder, TQStyleOption(cg.highlight()));
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}
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//todo
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}
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}
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TQRect KexiDBComboBox::editorGeometry() const
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{
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TQRect r( TQStyle::visualRect(
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tqstyle().querySubControlMetrics(TQStyle::CC_ComboBox, d->paintedCombo,
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TQStyle::SC_ComboBoxEditField), d->paintedCombo ) );
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//if ((height()-r.bottom())<6)
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// r.setBottom(height()-6);
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return r;
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}
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void KexiDBComboBox::createEditor()
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{
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KexiDBAutoField::createEditor();
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if (m_subwidget) {
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m_subwidget->setGeometry( editorGeometry() );
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if (!d->isEditable) {
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m_subwidget->setCursor(TQCursor(TQt::ArrowCursor)); // widgets like listedit have IbeamCursor, we don't want that
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//! @todo TQt4: set transparent background, for now we're setting button color
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TQPalette subwidgetPalette( m_subwidget->palette() );
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subwidgetPalette.setColor(TQPalette::Active, TQColorGroup::Base,
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subwidgetPalette.color(TQPalette::Active, TQColorGroup::Button));
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m_subwidget->setPalette( subwidgetPalette );
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if (d->subWidgetsWithDisabledEvents)
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d->subWidgetsWithDisabledEvents->clear();
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else
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d->subWidgetsWithDisabledEvents = new TQPtrDict<char>();
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d->subWidgetsWithDisabledEvents->insert(m_subwidget, (char*)1);
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m_subwidget->installEventFilter(this);
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TQObjectList *l = m_subwidget->queryList( TQWIDGET_OBJECT_NAME_STRING );
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for ( TQObjectListIt it( *l ); it.current(); ++it ) {
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d->subWidgetsWithDisabledEvents->insert(it.current(), (char*)1);
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it.current()->installEventFilter(this);
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}
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delete l;
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}
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}
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updateGeometry();
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}
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void KexiDBComboBox::setLabelPosition(LabelPosition position)
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{
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if(m_subwidget) {
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if (-1 != m_subwidget->metaObject()->findProperty("frameShape", true))
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m_subwidget->setProperty("frameShape", TQVariant((int)TQFrame::NoFrame));
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m_subwidget->setGeometry( editorGeometry() );
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}
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// KexiSubwidgetInterface *subwidgetInterface = dynamic_cast<KexiSubwidgetInterface*>((TQWidget*)m_subwidget);
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// update size policy
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// if (subwidgetInterface && subwidgetInterface->subwidgetStretchRequired(this)) {
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TQSizePolicy sizePolicy( this->sizePolicy() );
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if(position == Left)
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sizePolicy.setHorData( TQSizePolicy::Minimum );
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else
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sizePolicy.setVerData( TQSizePolicy::Minimum );
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//m_subwidget->setSizePolicy(sizePolicy);
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setSizePolicy(sizePolicy);
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//}
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// }
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}
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TQRect KexiDBComboBox::buttonGeometry() const
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{
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TQRect arrowRect(
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tqstyle().querySubControlMetrics( TQStyle::CC_ComboBox, d->paintedCombo, TQStyle::SC_ComboBoxArrow) );
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arrowRect = TQStyle::visualRect(arrowRect, d->paintedCombo);
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arrowRect.setHeight( TQMAX( height() - (2 * arrowRect.y()), arrowRect.height() ) ); // a fix for Motif style
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return arrowRect;
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}
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bool KexiDBComboBox::handleMousePressEvent(TQMouseEvent *e)
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{
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if ( e->button() != Qt::LeftButton || d->designMode )
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return true;
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/*todo if ( m_discardNextMousePress ) {
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d->discardNextMousePress = FALSE;
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return;
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}*/
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if ( /*count() &&*/ ( !isEditable() || buttonGeometry().contains( e->pos() ) ) ) {
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d->buttonPressed = false;
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/* if ( d->usingListBox() ) {
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listBox()->blockSignals( TRUE );
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tqApp->sendEvent( listBox(), e ); // trigger the listbox's autoscroll
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listBox()->setCurrentItem(d->current);
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listBox()->blockSignals( FALSE );
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popup();
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if ( arrowRect.contains( e->pos() ) ) {
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d->arrowPressed = TRUE;
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d->arrowDown = TRUE;
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repaint( FALSE );
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}
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} else {*/
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showPopup();
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return true;
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}
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return false;
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}
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bool KexiDBComboBox::handleKeyPressEvent(TQKeyEvent *ke)
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{
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const int k = ke->key();
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const bool dropDown = (ke->state() == Qt::NoButton && ((k==TQt::Key_F2 && !d->isEditable) || k==TQt::Key_F4))
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|| (ke->state() == TQt::AltButton && k==TQt::Key_Down);
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const bool escPressed = ke->state() == Qt::NoButton && k==TQt::Key_Escape;
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const bool popupVisible = popup() && popup()->isVisible();
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if ((dropDown || escPressed) && popupVisible) {
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popup()->hide();
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return true;
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}
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else if (dropDown && !popupVisible) {
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d->buttonPressed = false;
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showPopup();
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return true;
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}
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else if (popupVisible) {
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const bool enterPressed = k==TQt::Key_Enter || k==TQt::Key_Return;
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if (enterPressed/* && m_internalEditorValueChanged*/) {
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acceptPopupSelection();
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return true;
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}
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return handleKeyPressForPopup( ke );
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}
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return false;
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}
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bool KexiDBComboBox::keyPressed(TQKeyEvent *ke)
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{
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if (KexiDBAutoField::keyPressed(ke))
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return true;
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const int k = ke->key();
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const bool popupVisible = popup() && popup()->isVisible();
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const bool escPressed = ke->state() == Qt::NoButton && k==TQt::Key_Escape;
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if (escPressed && popupVisible) {
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popup()->hide();
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return true;
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}
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if (ke->state() == Qt::NoButton && (k==TQt::Key_PageDown || k==TQt::Key_PageUp) && popupVisible)
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return true;
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return false;
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}
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void KexiDBComboBox::mousePressEvent( TQMouseEvent *e )
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{
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if (handleMousePressEvent(e))
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return;
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// TQTimer::singleShot( 200, this, TQT_SLOT(internalClickTimeout()));
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// d->shortClick = TRUE;
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// }
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KexiDBAutoField::mousePressEvent( e );
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}
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void KexiDBComboBox::mouseDoubleClickEvent( TQMouseEvent *e )
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{
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mousePressEvent( e );
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}
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bool KexiDBComboBox::eventFilter( TQObject *o, TQEvent *e )
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{
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if (TQT_BASE_OBJECT(o)==TQT_BASE_OBJECT(this)) {
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if (e->type()==TQEvent::Resize) {
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d->paintedCombo->resize(size());
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if (m_subwidget)
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m_subwidget->setGeometry( editorGeometry() );
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}
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else if (e->type()==TQEvent::Enter) {
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if (!d->isEditable
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|| /*over button if editable combo*/buttonGeometry().contains( TQT_TQMOUSEEVENT(e)->pos() ))
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{
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d->mouseOver = true;
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update();
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}
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}
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else if (e->type()==TQEvent::MouseMove) {
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if (d->isEditable) {
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const bool overButton = buttonGeometry().contains( TQT_TQMOUSEEVENT(e)->pos() );
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if (overButton != d->mouseOver) {
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d->mouseOver = overButton;
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update();
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}
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}
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}
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else if (e->type()==TQEvent::Leave) {
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d->mouseOver = false;
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update();
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}
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else if (e->type()==TQEvent::KeyPress) {
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// handle F2/F4
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if (handleKeyPressEvent(TQT_TQKEYEVENT(e)))
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return true;
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}
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else if (e->type()==TQEvent::FocusOut) {
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if (popup() && popup()->isVisible()) {
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popup()->hide();
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undoChanges();
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}
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}
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}
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else if (!d->isEditable && d->subWidgetsWithDisabledEvents && d->subWidgetsWithDisabledEvents->find(o)) {
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if (e->type()==TQEvent::MouseButtonPress) {
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// clicking the subwidget should mean the same as clicking the combo box (i.e. show the popup)
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if (handleMousePressEvent(TQT_TQMOUSEEVENT(e)))
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return true;
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}
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else if (e->type()==TQEvent::KeyPress) {
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if (handleKeyPressEvent(TQT_TQKEYEVENT(e)))
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return true;
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}
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return e->type()!=TQEvent::Paint;
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}
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return KexiDBAutoField::eventFilter( o, e );
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}
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bool KexiDBComboBox::subwidgetStretchRequired(KexiDBAutoField* autoField) const
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{
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Q_UNUSED(autoField);
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return true;
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}
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void KexiDBComboBox::setPaletteBackgroundColor( const TQColor & color )
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{
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KexiDBAutoField::setPaletteBackgroundColor(color);
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TQPalette pal(palette());
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TQColorGroup cg(pal.active());
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pal.setColor(TQColorGroup::Base, red);
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pal.setColor(TQColorGroup::Background, red);
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pal.setActive(cg);
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TQWidget::setPalette(pal);
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update();
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}
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bool KexiDBComboBox::valueChanged()
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{
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kdDebug() << "KexiDataItemInterface::valueChanged(): " << m_origValue.toString() << " ? " << value().toString() << endl;
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return m_origValue != value();
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}
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void
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KexiDBComboBox::setColumnInfo(KexiDB::QueryColumnInfo* cinfo)
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{
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KexiFormDataItemInterface::setColumnInfo(cinfo);
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}
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void KexiDBComboBox::setVisibleColumnInfo(KexiDB::QueryColumnInfo* cinfo)
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{
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d->visibleColumnInfo = cinfo;
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// we're assuming we already have columnInfo()
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setColumnInfoInternal(columnInfo(), d->visibleColumnInfo);
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}
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KexiDB::QueryColumnInfo* KexiDBComboBox::visibleColumnInfo() const
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{
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return d->visibleColumnInfo;
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}
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void KexiDBComboBox::moveCursorToEndInInternalEditor()
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{
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if (d->isEditable && m_moveCursorToEndInInternalEditor_enabled)
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moveCursorToEnd();
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}
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void KexiDBComboBox::selectAllInInternalEditor()
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{
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if (d->isEditable && m_selectAllInInternalEditor_enabled)
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selectAll();
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}
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void KexiDBComboBox::setValueInternal(const TQVariant& add, bool removeOld)
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{
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//// use KexiDBAutoField instead of KexiComboBoxBase::setValueInternal
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//// expects existing popup(), but we want to have delayed creation
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if (popup())
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popup()->hide();
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KexiComboBoxBase::setValueInternal(add, removeOld);
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}
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void KexiDBComboBox::setVisibleValueInternal(const TQVariant& value)
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{
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KexiFormDataItemInterface *iface = dynamic_cast<KexiFormDataItemInterface*>((TQWidget*)m_subwidget);
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if(iface)
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iface->setValue(value, TQVariant(), false /*!removeOld*/);
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}
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TQVariant KexiDBComboBox::visibleValue()
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{
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return KexiComboBoxBase::visibleValue();
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}
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void KexiDBComboBox::setValueInInternalEditor(const TQVariant& value)
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{
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if (!m_setValueInInternalEditor_enabled)
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return;
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KexiFormDataItemInterface *iface = dynamic_cast<KexiFormDataItemInterface*>((TQWidget*)m_subwidget);
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if(iface)
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iface->setValue(value, TQVariant(), false/*!removeOld*/);
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}
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TQVariant KexiDBComboBox::valueFromInternalEditor()
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{
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return KexiDBAutoField::value();
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}
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TQPoint KexiDBComboBox::mapFromParentToGlobal(const TQPoint& pos) const
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{
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// const KexiFormScrollView* view = KexiUtils::findParentConst<const KexiFormScrollView>(this, "KexiFormScrollView");
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if (!parentWidget())
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return TQPoint(-1,-1);
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return parentWidget()->mapToGlobal(pos);
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// return view->viewport()->mapToGlobal(pos);
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}
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int KexiDBComboBox::popupWidthHint() const
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{
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return width(); //popup() ? popup()->width() : 0;
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}
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void KexiDBComboBox::fontChange( const TQFont & oldFont )
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{
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d->sizeHint = TQSize(); //force rebuild the cache
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KexiDBAutoField::fontChange(oldFont);
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}
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void KexiDBComboBox::styleChange( TQStyle& oldStyle )
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{
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KexiDBAutoField::styleChange( oldStyle );
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d->sizeHint = TQSize(); //force rebuild the cache
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if (m_subwidget)
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m_subwidget->setGeometry( editorGeometry() );
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}
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TQSize KexiDBComboBox::sizeHint() const
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{
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if ( isVisible() && d->sizeHint.isValid() )
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return d->sizeHint;
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const int maxWidth = 7 * fontMetrics().width(TQChar('x')) + 18;
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const int maxHeight = TQMAX( fontMetrics().lineSpacing(), 14 ) + 2;
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d->sizeHint = (tqstyle().tqsizeFromContents(TQStyle::CT_ComboBox, d->paintedCombo,
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TQSize(maxWidth, maxHeight)).expandedTo(TQApplication::globalStrut()));
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|
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return d->sizeHint;
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}
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void KexiDBComboBox::editRequested()
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{
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}
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|
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void KexiDBComboBox::acceptRequested()
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{
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signalValueChanged();
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}
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|
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void KexiDBComboBox::slotRowAccepted(KexiTableItem *item, int row)
|
|
{
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d->dataEnteredByHand = false;
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KexiComboBoxBase::slotRowAccepted(item, row);
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d->dataEnteredByHand = true;
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}
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|
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void KexiDBComboBox::beforeSignalValueChanged()
|
|
{
|
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if (d->dataEnteredByHand) {
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KexiFormDataItemInterface *iface = dynamic_cast<KexiFormDataItemInterface*>((TQWidget*)m_subwidget);
|
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if (iface) {
|
|
slotInternalEditorValueChanged( iface->value() );
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|
}
|
|
}
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|
}
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|
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void KexiDBComboBox::undoChanges()
|
|
{
|
|
KexiDBAutoField::undoChanges();
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|
KexiComboBoxBase::undoChanges();
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|
}
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#include "kexidbcombobox.moc"
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