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/*
* viewdisplay.h
*
* (c) 2002-2004,2009-2010 by Jeremy Bowman <jmbowman@alum.mit.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
/** @file viewdisplay.h
* Header file for ViewDisplay
*/
#ifndef VIEWDISPLAY_H
#define VIEWDISPLAY_H
#include <QModelIndex>
#include <QTime>
#include <QWidget>
class Database;
class DataModel;
class PortaBase;
class QButtonGroup;
class QKeyEvent;
class QLabel;
class QSettings;
class QSpinBox;
class QStackedWidget;
class QString;
class QToolButton;
class QTreeView;
class View;
#define PAGE_BUTTON_COUNT 5
/**
* The main data display widget in %PortaBase. Shows a table which displays
* records matching the current filter as rows, and fields in the current
* view as columns. By default records are split between pages containing
* a maximum number of rows each (with navigation controls at the bottom of
* the widget), but an option in the Preferences dialog lets the user force
* all rows to be shown in a single page and hide the navigation widget row.
*/
class ViewDisplay: public QWidget
{
Q_OBJECT
public:
ViewDisplay(PortaBase *pbase, QWidget *parent = 0);
void setDatabase(Database *dbase);
void resetTable();
void updateButtonSizes();
void saveViewSettings();
void setView(const QString &name, bool applyDefaults=false);
void setSorting(const QString &name);
void setFilter(const QString &name);
void closeView();
void deleteAllRows();
void exportToCSV(const QString &filename);
void exportToHTML(const QString &filename);
void exportToXML(const QString &filename);
QString toPrintHTML();
void updateColWidths();
int rowCount();
int columnCount();
void updatePreferences(QSettings *settings);
public slots:
void addRow();
bool editRow(int rowId=-1, bool copy=false, QWidget *parent=0);
void deleteRow();
void slideshow();
void viewRow();
void showStatistics();
protected:
void keyPressEvent(QKeyEvent *e);
void keyReleaseEvent(QKeyEvent *e);
private:
void setEdited(bool y);
int selectedRowIndex();
int selectedRowId();
void sort(int column);
void usePages(bool flag);
private slots:
void changePage(int id);
void nextPages();
void previousPages();
void updateRowsPerPage(int rpp);
void rowSelected();
void cellPressed(const QModelIndex &index);
void cellReleased(const QModelIndex &index);
void headerPressed(int column);
void headerReleased(int column);
void columnResized(int column, int oldWidth, int newWidth);
void updateButtons(int currentPage, int totalPages);
void matchNewView(View *view);
void tableChanged();
private:
PortaBase *portabase; /**< The main application window */
QStackedWidget *stack; /**< Main widget stack (data display and "no results" label) */
QTreeView *table; /**< Table of data records */
DataModel *model; /**< The model of the currently displayed data used by the table widget */
QLabel *noResults; /**< "No results" placeholder label */
QWidget *buttonRow; /**< Row of results page navigation controls */
QSpinBox *rowsPerPage; /**< Records per results page selection widget */
QToolButton *prevButton; /**< "Previous few pages" button */
QToolButton *nextButton; /**< "Next few pages" button */
QButtonGroup *buttonGroup; /**< The group of page navigation buttons */
QToolButton *pageButtons[PAGE_BUTTON_COUNT]; /**< Array of page navigation buttons */
bool propogateColWidths; /**< True if column width resizes are to be passed to the view */
int pressedIndex; /**< Index of the column in which the mouse has been pressed (while waiting for a release) */
int pressedHeader; /**< Index of the column header which has been pressed (while waiting for a release) */
QTime timer; /**< Time elapsed between the last mouse press and release */
bool booleanToggle; /**< True if boolean field values can be toggled by clicking on them in the display */
bool paged; /**< False if all records in the view are always shown on one scrolling page */
bool singleClickShow; /**< True if a single click launches the row viewer */
};
#endif
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