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183 lines
6.6 KiB
183 lines
6.6 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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#ifndef KexiDBComboBox_H
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#define KexiDBComboBox_H
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#include "kexidbutils.h"
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#include "kexidbautofield.h"
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#include <widget/tableview/kexicomboboxbase.h>
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//! @short Combo box widget for Kexi forms
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/*! This widget is implemented on top of KexiDBAutoField,
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so as it uses KexiDBAutoField's ability of embedding subwidgets,
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it can display not only a line edit but also text edit or image box
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(more can be added in the future).
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A drop-down button is added to mimic native combo box widget's functionality.
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*/
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class KEXIFORMUTILS_EXPORT KexiDBComboBox :
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public KexiDBAutoField, public KexiComboBoxBase
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{
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Q_OBJECT
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TQ_OBJECT
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TQ_PROPERTY( bool editable READ isEditable WRITE setEditable )
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//properties from KexiDBAutoField that should not be visible:
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TQ_OVERRIDE(TQColor paletteBackgroundColor READ paletteBackgroundColor WRITE setPaletteBackgroundColor DESIGNABLE true RESET unsetPalette)
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TQ_OVERRIDE(TQColor foregroundLabelColor DESIGNABLE false)
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TQ_OVERRIDE(TQColor backgroundLabelColor DESIGNABLE false)
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TQ_OVERRIDE(bool autoCaption DESIGNABLE false)
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public:
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KexiDBComboBox(TQWidget *parent, const char *name=0, bool designMode = true);
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virtual ~KexiDBComboBox();
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//! Implemented for KexiComboBoxBase: form has no 'related data' model (only the full database model)
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virtual KexiTableViewColumn *column() const { return 0; }
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//! Implemented for KexiComboBoxBase
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virtual KexiDB::Field *field() const { return KexiDBAutoField::field(); }
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//! Implemented for KexiComboBoxBase
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virtual TQVariant origValue() const { return m_origValue; }
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void setEditable(bool set);
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bool isEditable() const;
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virtual void setLabelPosition(LabelPosition position);
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virtual TQVariant value() { return KexiComboBoxBase::value(); }
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virtual TQVariant visibleValue();
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//! Reimpemented because to avoid taking value from the internal editor (index is taken from the popup instead)
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virtual bool valueChanged();
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virtual TQSize tqsizeHint() const;
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//! Reimplemented after KexiDBAutoField: jsut sets \a cinfo without initializing a subwidget.
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//! Initialization is performed by \ref setVisibleColumnInfo().
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virtual void setColumnInfo(KexiDB::QueryColumnInfo* cinfo);
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/*! Used internally to set visible database column information.
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Reimplemented: performs initialization of the subwidget. */
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virtual void setVisibleColumnInfo(KexiDB::QueryColumnInfo* cinfo);
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/*! \return visible database column information for this item.
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Reimplemented. */
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virtual KexiDB::QueryColumnInfo* visibleColumnInfo() const;
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const TQColor & paletteBackgroundColor() const { return KexiDBAutoField::paletteBackgroundColor(); }
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//! Reimplemented to also set 'this' widget's background color, not only subwidget's.
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virtual void setPaletteBackgroundColor( const TQColor & color );
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/*! Undoes changes made to this item - just resets the widget to original value.
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Reimplemented after KexiFormDataItemInterface to also revert the visible value
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(i.e. text) to the original state. */
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virtual void undoChanges();
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public slots:
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void slotRowAccepted(KexiTableItem *item, int row);
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void slotItemSelected(KexiTableItem* item) { KexiComboBoxBase::slotItemSelected(item); }
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protected slots:
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void slotInternalEditorValueChanged(const TQVariant& v)
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{ KexiComboBoxBase::slotInternalEditorValueChanged(v); }
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protected:
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TQRect buttonGeometry() const;
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virtual void paintEvent( TQPaintEvent * );
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virtual void mousePressEvent( TQMouseEvent *e );
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void mouseDoubleClickEvent( TQMouseEvent *e );
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virtual bool eventFilter( TQObject *o, TQEvent *e );
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//! \return internal editor's tqgeometry
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TQRect editorGeometry() const;
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//! Creates editor. Reimplemented, because if the combo box is not editable,
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//! editor should not be created.
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virtual void createEditor();
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/*! Reimplemented */
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virtual void styleChange( TQStyle& oldStyle );
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/*! Reimplemented */
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virtual void fontChange( const TQFont & oldFont );
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virtual bool subwidgetStretchRequired(KexiDBAutoField* autoField) const;
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//! Implemented for KexiComboBoxBase
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virtual TQWidget *internalEditor() const { return /*WidgetWithSubpropertiesInterface*/m_subwidget; }
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//! Implemented for KexiComboBoxBase. Does nothing if the widget is not editable.
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virtual void moveCursorToEndInInternalEditor();
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//! Implemented for KexiComboBoxBase. Does nothing if the widget is not editable.
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virtual void selectAllInInternalEditor();
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//! Implemented for KexiComboBoxBase
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virtual void setValueInInternalEditor(const TQVariant& value);
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//! Implemented for KexiComboBoxBase
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virtual TQVariant valueFromInternalEditor();
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//! Implemented for KexiComboBoxBase
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virtual void editRequested();
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//! Implemented for KexiComboBoxBase
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virtual void acceptRequested();
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//! Implement this to return a position \a pos mapped from parent (e.g. viewport)
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//! to global coordinates. TQPoint(-1, -1) should be returned if this cannot be computed.
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virtual TQPoint mapFromParentToGlobal(const TQPoint& pos) const;
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//! Implement this to return a hint for popup width.
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virtual int popupWidthHint() const;
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virtual void setValueInternal(const TQVariant& add, bool removeOld);
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//! Implemented to handle visible value instead of index
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virtual void setVisibleValueInternal(const TQVariant& value);
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bool handleMousePressEvent(TQMouseEvent *e);
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bool handleKeyPressEvent(TQKeyEvent *ke);
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//! Implemented for KexiDataItemInterface
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virtual void beforeSignalValueChanged();
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virtual KexiComboBoxPopup *popup() const;
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virtual void setPopup(KexiComboBoxPopup *popup);
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/*! Called by top-level form on key press event.
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Used for Key_Escape to if the popup is visible,
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so the key press won't be consumed to perform "cancel editing".
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Also used for grabbing page down/up keys. */
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virtual bool keyPressed(TQKeyEvent *ke);
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class Private;
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Private * const d;
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};
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#endif
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