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Diffstat (limited to 'kexi/plugins/forms/widgets/kexidblineedit.h')
| -rw-r--r-- | kexi/plugins/forms/widgets/kexidblineedit.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/kexi/plugins/forms/widgets/kexidblineedit.h b/kexi/plugins/forms/widgets/kexidblineedit.h new file mode 100644 index 00000000..5f0262b2 --- /dev/null +++ b/kexi/plugins/forms/widgets/kexidblineedit.h @@ -0,0 +1,170 @@ +/* This file is part of the KDE project + Copyright (C) 2005 Cedric Pasteur <cedric.pasteur@free.fr> + 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. +*/ + +#ifndef KexiDBLineEdit_H +#define KexiDBLineEdit_H + +#include <klineedit.h> +#include <qvalidator.h> + +#include "kexiformdataiteminterface.h" +#include "kexidbtextwidgetinterface.h" +#include "kexidbutils.h" +#include <widget/tableview/kexitextformatter.h> +#include <widget/utils/kexidatetimeformatter.h> + +class KexiDBWidgetContextMenuExtender; + +/*! @internal Utility: alter background color to be a blended color + of the background and base (usually lighter gray). Used for read-only mode. */ +void setLighterGrayBackgroundColor(QWidget* widget); + +//! @short Line edit widget for Kexi forms +/*! Handles many data types. User input is validated by using validators + and/or input masks. +*/ +class KEXIFORMUTILS_EXPORT KexiDBLineEdit : + public KLineEdit, + protected KexiDBTextWidgetInterface, + public KexiFormDataItemInterface, + public KexiSubwidgetInterface +{ + Q_OBJECT + Q_PROPERTY(QString dataSource READ dataSource WRITE setDataSource DESIGNABLE true) + Q_PROPERTY(QCString dataSourceMimeType READ dataSourceMimeType WRITE setDataSourceMimeType DESIGNABLE true) + Q_OVERRIDE(bool readOnly READ isReadOnly WRITE setReadOnly DESIGNABLE true) + + public: + KexiDBLineEdit(QWidget *parent, const char *name=0); + virtual ~KexiDBLineEdit(); + + inline QString dataSource() const { return KexiFormDataItemInterface::dataSource(); } + inline QCString dataSourceMimeType() const { return KexiFormDataItemInterface::dataSourceMimeType(); } + virtual QVariant value(); + virtual void setInvalidState( const QString& displayText ); + + //! \return true if editor's value is null (not empty) + //! Used for checking if a given constraint within table of form is met. + virtual bool valueIsNull(); + + //! \return true if editor's value is empty (not necessary null). + //! Only few data types can accept "EMPTY" property + //! (use KexiDB::Field::hasEmptyProperty() to check this). + //! Used for checking if a given constraint within table or form is met. + virtual bool valueIsEmpty(); + + /*! \return true if the value is valid */ + virtual bool valueIsValid(); + + /*! \return 'readOnly' flag for this widget. */ + virtual bool isReadOnly() const; + + /*! If \a displayDefaultValue is true, the value set by KexiDataItemInterface::setValue() + is displayed in a special way. Used by KexiFormDataProvider::fillDataItems(). + \a widget is equal to 'this'. + Reimplemented after KexiFormDataItemInterface. */ + virtual void setDisplayDefaultValue(QWidget* widget, bool displayDefaultValue); + + /*! \return the view widget of this item, e.g. line edit widget. */ + virtual QWidget* widget(); + + virtual bool cursorAtStart(); + virtual bool cursorAtEnd(); + virtual void clear(); + + virtual void setColumnInfo(KexiDB::QueryColumnInfo* cinfo); + + /*! Handles action having standard name \a actionName. + Action could be: "edit_copy", "edit_paste", etc. + Reimplemented after KexiDataItemChangesListener. */ + virtual void handleAction(const QString& actionName); + + /*! Called by top-level form on key press event to consume widget-specific shortcuts. */ + virtual bool keyPressed(QKeyEvent *ke); + + public slots: + inline void setDataSource(const QString &ds) { KexiFormDataItemInterface::setDataSource(ds); } + inline void setDataSourceMimeType(const QCString &ds) { KexiFormDataItemInterface::setDataSourceMimeType(ds); } + virtual void setReadOnly( bool readOnly ); + + //! Reimplemented, so "undo" means the same as "cancelEditor" action + virtual void undo(); + + //! Implemented for KexiDataItemInterface + virtual void moveCursorToEnd(); + + //! Implemented for KexiDataItemInterface + virtual void moveCursorToStart(); + + //! Implemented for KexiDataItemInterface + virtual void selectAll(); + + protected slots: + void slotTextChanged(const QString&); + + protected: + virtual void paintEvent ( QPaintEvent * ); + virtual void setValueInternal(const QVariant& add, bool removeOld); + virtual bool event ( QEvent * ); + +#if 0 +//moved to KexiTextFormatter + inline KexiDateFormatter* dateFormatter() { + return m_dateFormatter ? m_dateFormatter : m_dateFormatter = new KexiDateFormatter(); + } + + inline KexiTimeFormatter* timeFormatter() { + return m_timeFormatter ? m_timeFormatter : m_timeFormatter = new KexiTimeFormatter(); + } +#endif + + virtual QPopupMenu * createPopupMenu(); + + //! Implemented for KexiSubwidgetInterface + virtual bool appendStretchRequired(KexiDBAutoField* autoField) const; + +#if 0 +//moved to KexiTextFormatter + //! Used for date and date/time types + KexiDateFormatter* m_dateFormatter; + //! Used for time and date/time types + KexiTimeFormatter* m_timeFormatter; +#endif + //! Used to format text + KexiTextFormatter m_textFormatter; + + //! Used for read only flag to disable editing + QGuardedPtr<const QValidator> m_readOnlyValidator; + + //! Used to remember the previous validator used forf r/w mode, after setting the read only flag + QGuardedPtr<const QValidator> m_readWriteValidator; + + //! Used for extending context menu + KexiDBWidgetContextMenuExtender m_menuExtender; + + //! Used in isReadOnly, as sometimes we want to have the flag set tot true when KLineEdit::isReadOnly + //! is still false. + bool m_internalReadOnly : 1; + + //! Used in slotTextChanged() + bool m_slotTextChanged_enabled : 1; +}; + +#endif |