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Diffstat (limited to 'kexi/main/printing/kexisimpleprintingengine.h')
| -rw-r--r-- | kexi/main/printing/kexisimpleprintingengine.h | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/kexi/main/printing/kexisimpleprintingengine.h b/kexi/main/printing/kexisimpleprintingengine.h new file mode 100644 index 00000000..551ed248 --- /dev/null +++ b/kexi/main/printing/kexisimpleprintingengine.h @@ -0,0 +1,130 @@ +/* This file is part of the KDE project + Copyright (C) 2005-2007 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.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + */ + +#ifndef KEXISIMPLEPRINTINGENGINE_H +#define KEXISIMPLEPRINTINGENGINE_H + +class KexiSimplePrintingSettings; + +#include <kexidb/connection.h> +#include <kexidb/tableschema.h> +#include <kexidb/cursor.h> +#include <kexidb/utils.h> +#include <kexidb/queryschema.h> +#include <widget/tableview/kexitableviewdata.h> +#include <KoPageLayoutDia.h> + +#include <qpaintdevicemetrics.h> +#include <qfontmetrics.h> +#include <qfont.h> + +//! @short Settings data for simple printing engine. +class KexiSimplePrintingSettings +{ + public: + KexiSimplePrintingSettings(); + ~KexiSimplePrintingSettings(); + + static KexiSimplePrintingSettings load(); + void save(); + + KoPageLayout pageLayout; + KoUnit::Unit unit; + QFont pageTitleFont; + bool addPageNumbers : 1; + bool addDateAndTime : 1; + bool addTableBorders : 1; +}; + +/*! @short An engine painting data on pages using QPainter. + The engine allows for random access to any page. */ +class KexiSimplePrintingEngine : public QObject +{ + Q_OBJECT + + public: + KexiSimplePrintingEngine( const KexiSimplePrintingSettings& settings, QObject* parent ); + ~KexiSimplePrintingEngine(); + + bool init(KexiDB::Connection& conn, KexiDB::TableOrQuerySchema& tableOrQuery, + const QString& titleText, QString& errorMessage); + + void setTitleText(const QString& titleText); + + //! Calculates pafe count that can be later obtained using pagesCount(). + //! Page count can depend on \a painter (printer/screen) and on printing settings. + void calculatePagesCount(QPainter& painter); + + bool done(); + void clear(); + const KexiSimplePrintingSettings* settings() const { return m_settings; } + + //! \return true when all records has been painted + bool eof() const { return m_eof; } + + //! \return number of pages. Can be used after calculatePagesCount(). + uint pagesCount() const { return m_pagesCount; } + + //! \return number of painted pages so far. + //! If eof() is true, this number is equal to total page count. + uint paintedPages() const { return m_dataOffsets.count(); } + + public slots: + /*! Paints a page number \a pageNumber (counted from 0) on \a painter. + If \a paint is false, drawings are only computed but not painted, + so this can be used for calculating page number before printing or previewing. */ + void paintPage(int pageNumber, QPainter& painter, bool paint = true); + + protected: + void paintRecord(QPainter& painter, KexiTableItem *item, + int cellMargin, double &y, uint paintedRows, bool paint, bool printing); + + const KexiSimplePrintingSettings* m_settings; + +// QPainter* m_painter; + QFont m_mainFont, m_headerFont; + QPaintDeviceMetrics m_pdm; + double m_dpiX, m_dpiY; + uint m_pageWidth, m_pageHeight; + uint m_SCALE; + //QFontMetrics m_headerFM, m_mainFM; + KexiDB::Cursor *m_cursor; + KexiTableViewData *m_data; +// KexiTableViewData::Iterator *m_dataIterator; + QPtrList<uint> m_dataOffsets; + QString m_headerText; + QString m_dateTimeText; + uint m_dateTimeWidth; + QRect m_headerTextRect; + int m_maxFieldNameWidth; + int m_mainLineSpacing; + int m_footerHeight; + KexiDB::QueryColumnInfo::Vector m_fieldsExpanded; + uint m_visibleFieldsCount; + uint m_pagesCount; + bool m_eof; + bool m_paintInitialized; //!< used by paintPage() + double m_leftMargin; + double m_rightMargin; + double m_topMargin; + double m_bottomMargin; + double m_fx, m_fy; +}; + +#endif |