Alexander Dymo
cloudtemple@mksat.net
Phil Thompson
phil@river-bank.demon.co.uk
Programmer's Guide How to use &kugar; for reporting in your own programs There are several ways to use &kugar; Create a temporary file and fill it with data, organized according to the KugarData Document Type Definition. Then call the kugar shell command ( kugar ) to preview and print the report. See Using &kugar; shell for previewing reports for a detailed description. Use &kugar; directly in the application's code. See Using &kugar; classes for reporting for a detailed description. Create a &Qt; designer plugin, use it to build the application &GUI; in the designer and link it to the program dynamically. See Creating a &Qt; designer plugin for a detailed description. The last two ways are acceptable for &Qt; and &kde; developers; but &kugar; is designed to be a report generator, independent from a programming language and/or IDE. It uses &XML; format for describing report templates and data files. So any program can produce output in &kugar; data file format as described in KugarData DTD or even a report template file format (see KugarTemplate DTD). &kugar; shell (report viewer) can be used to preview and print the generated report. Using &kugar; shell for previewing reports The way to create and preview (print) a report is: Create a report template file with &kudesigner; Create a data file with column values for detail bands of the report. Use KugarData DTD to produce correct data files. Run &kugar; shell to preview and print a report. For example, to do this, in C or C++ languages call: system(). Don't forget to include stdlib.h. Using &kugar; classes for reporting The &kugar; library includes two widgets for use. The KReportViewer class is designed for &kde; developers. It supports a &kde; printing system and &UNIX; localization via i18n() calls. The MReportViewer class is designed for &Qt; developers and provides real crossplatforming. It can be used not only on &UNIX; platforms, but also on &Windows; and &MacOS;. In order to build a program that uses the &kugar; library, it should be linked with libkugar.so shared library, which is provided with the &kugar; distribution on all &UNIX; platforms. Include files are kugarqt.h and kugar.h for &Qt; and &kde; programs respectively. For a detailed example of how &kugar; classes can be used, look in the /shell folder in the &kugar; sources. MReportViewer (and KReportViewer too) contains several public methods that can be used. void renderReport Renders the report onto a screen. void printReport Calls the print dialog to print the report. void clearReport Clears the report on a screen and frees report data. Call this before opening the new report. bool setReportData const QString &data_file_name Sets report data from data_file_name file. bool setReportData const QIODevice &data_io_device Sets report data from data_io_device file. IO device can be any successor of the QIODevice class. For example, to fetch records directly from the database, create a QIODevice successor and redefine all necessary functionality. bool setReportTemplate const QString &template_file_name Sets report template from template_file_name file. bool setReportTemplate const QIODevice &template_io_device Sets report template from template_io_device file. IO device can be any successor of the QIODevice class. For example, to obtain a report template from network storage or database, create a QIODevice successor and redefine all necessary functionality. Creating &Qt; designer plugin This is the example code of how a designer plugin is created. The code below creates a plugin for a &kde; KReportViewer widget. If a &Qt; widget is desired, replace KReportViewer with MReportViewer and kugar.h with kugarqt.h in the plugin code. Plugin usage The designer plugin will allow the usage of &Qt; Designer to place a KReportViewer widget onto a window and preview it correctly. Programs that make use of this plugin must be linked dynamically with it. The corresponding library is called libkugar_plugin.so. Widgets or dialogs that include KReportViewer widget must include <kugar.h> in implementation and have a forward declaration of class KReportViewer. Includes can be done with &Qt; Designer's Object Explorer (Source tab). To build the plugin run: qmake kugar_plugin.pro make Plugin code The plugin code consists of three files: kugar_plugin.h kugar_plugin.cpp kugar_plugin.pro A header file for the KugarWidgetPlugin, QWidgetPlugin successor; A source file for the KugarWidgetPlugin, QWidgetPlugin successor; A project file for the QMake utility. kugar_plugin.h #include <qwidgetplugin.h> class KugarWidgetPlugin:public QWidgetPlugin { public: KugarWidgetPlugin (); QStringList keys () const; QWidget *create (const QString & classname, QWidget * parent = 0, const char *name = 0); QString group (const QString &) const; QIconSet iconSet (const QString &) const; QString includeFile (const QString &) const; QString toolTip (const QString &) const; QString whatsThis (const QString &) const; bool isContainer (const QString &) const; }; kugar_plugin.cpp #include "kugar_plugin.h" #include <kugar.h> static const char *kugar_pixmap[] = { "22 22 127 2", ".d c #000000", ".c c #131313", ".b c #282828", ".a c #434241", ".e c #4e463a", ".# c #595551", ".G c #66553b", "#F c #68635f", "#R c #6b4f23", "#q c #6e6862", "#M c #6f5229", ".n c #6f6146", ".w c #735310", ".V c #755c2a", ".I c #775f34", ".0 c #77694a", "#n c #7e6434", ".o c #806f50", "#C c #835d2d", ".P c #837c75", "#B c #85653a", "#k c #85827e", ".x c #866d46", ".U c #877967", ".X c #888888", ".F c #89724d", "#x c #8b6d2a", ".S c #8d7759", ".z c #8e733b", "#L c #906e49", "#Q c #947b56", ".r c #948058", ".J c #957844", ".4 c #987736", ".q c #998969", ".k c #999897", ".R c #9a8a75", "#i c #9f8348", "#I c #a37c4b", ".u c #a38d66", ".E c #a58558", "#A c #a8834b", ".s c #a9967a", ".t c #aa9467", ".C c #ae9f8d", "#6 c #afa49d", "#5 c #afa9a4", "#W c #b18e4d", ".K c #b1935a", ".B c #b39660", "#V c #b49866", "#a c #b49d6c", "## c #b49d72", ".j c #b5b4b4", "#0 c #b7a597", ".O c #b9b1a9", ".L c #bb9c61", ".M c #bb9e6b", ".A c #bca778", "#j c #bea46b", ".T c #bfb37d", ".v c #c0b391", ".W c #c3a262", ".i c #c4c4c4", "#m c #c5b7aa", "#8 c #c69f80", ".D c #c6b79b", "#3 c #c7a589", ".7 c #c7a76c", "#u c #c7bbaf", ".6 c #c8ad74", "#7 c #c8b7a9", "#r c #c8beb5", ".m c #c8c8c8", "#U c #cbad96", "#f c #ccb681", "#h c #cdac6c", "#P c #cdb49f", "#X c #cdb8a6", "#H c #ceb7a4", ".y c #ceb892", ".N c #cecac3", "#Z c #cfb16f", "#O c #cfbdad", ".Z c #cfc7c0", "#w c #d0bcab", ".5 c #d1ad6b", "#s c #d1bfb1", ".h c #d5d5d5", "#l c #d6cdc6", "#D c #d8b36e", ".H c #dac592", "#t c #dbb977", ".g c #dcdcdc", ".1 c #e0dcc1", ".f c #e0e0df", "#1 c #e3c8b1", "#S c #e4cdb9", ".3 c #e4d9a3", "#4 c #e6c1a1", "#2 c #e7c4a5", "#K c #e9c179", "#g c #e9c47e", "#Y c #e9c8ac", ".2 c #eae6c0", "#T c #ebcdb3", ".Q c #ebd4b9", "#E c #ecca87", "#z c #ecd799", ".l c #ececeb", "#G c #efd7c2", "#e c #efe3ab", ".8 c #efe8e3", "#v c #f1dcca", "#. c #f2e2d4", ".p c #f4f4f4", "#y c #f5daa0", "#J c #f6cf7f", ".9 c #f7ede4", "#p c #f9d995", ".Y c #fcf9f6", "#d c #fefcc5", "#c c #fefdda", "#b c #fefee1", "#N c #ffd685", "#o c #fff0a9", "Qt c #ffffff", "QtQtQtQtQtQt.#.a.a.a.b.b.b.c.c.d.d.dQtQtQtQt", "QtQtQtQtQtQt.e.f.g.g.f.g.g.h.i.j.d.k.dQtQtQt", "QtQtQtQtQtQt.a.gQtQtQtQtQtQt.l.f.c.m.k.dQtQt", "QtQtQtQtQt.n.n.n.n.n.o.g.pQtQt.l.bQt.m.k.dQt", "QtQtQt.q.q.r.q.s.t.r.q.u.u.g.pQt.a.fQt.m.k.d", "QtQt.s.s.v.w.x.y.y.t.z.A.t.B.i.p.#.a.b.c.d.d", "Qt.C.C.D.E.F.G.A.H.F.I.J.K.L.M.i.p.l.N.O.P.d", "Qt.s.v.Q.q.R.S.T.A.R.U.V.L.W.W.X.g.Y.f.Z.k.d", ".0.s.t.Q.1.U.R.2.3.S.U.4.5.6.6.7.j.8.9#..O.d", ".G##.V#a#b.1#c#c#d#e#f#g#h#i#j.W#k#l.9#.#m.d", ".G.4.F#n#c#c#c#d#d#o#p#g.x.w#i.L#q#r#.#.#s.d", ".e.J.J.I.3#d.H#j.6#f#p#t#n.w.E.L#q#u#.#v#w.d", ".G.A#x.z#y#z#A#B#B#C#D#E.4.4.6#h#F#m#v#G#H.d", ".o.s.A#j#E#t#I#I#I#C#A#J#p#p#K#t#F#m#v#G#H.d", "Qt##.A.6.7#I#I#A.E#L#M.W#N#J#K.a.U#O#G.Q#P.d", "Qt#a.M.L.J#A#I.4.E#Q.x#R#D#J#g.#.C#S.Q#T#U.d", "QtQt#V.K.z#Q.s.S.x.S#B#M#W#E.a.U#X.Q#T#Y#U.d", "QtQtQt.M#i#B.r#Q#Q.r#Q.z#Z.a#q#0#1#T#Y#2#3.d", "QtQtQtQtQt#j.L.L.W.5#t.a.#.U#0#1#T#Y#2#4#3.d", "QtQtQtQtQtQt.d#F#q#q#q.P.C#O#S.Q#T#Y#2#4#3.d", "QtQtQtQtQtQt.d#5#5#6#6#0#7#w#H#P#U#U#3#3#8.d", "QtQtQtQtQtQt.d.d.d.d.d.d.d.d.d.d.d.d.d.d.d.d" }; KugarWidgetPlugin::KugarWidgetPlugin () { } QStringList KugarWidgetPlugin::keys () const { QStringList list; list << "KReportViewer"; return list; } QWidget* KugarWidgetPlugin::create (const QString & key, QWidget * parent, const char *name) { if (key == "KReportViewer") return new KReportViewer (parent, name); return 0; } QString KugarWidgetPlugin::group (const QString & feature) const { if (feature == "KReportViewer") return "Display"; return QString::null; } QIconSet KugarWidgetPlugin::iconSet (const QString &) const { return QIconSet (QPixmap (kugar_pixmap)); } QString KugarWidgetPlugin::includeFile (const QString & feature) const { if (feature == "KReportViewer") return "kugar.h"; return QString::null; } QString KugarWidgetPlugin::toolTip (const QString & feature) const { if (feature == "KReportViewer") return "Kugar report viewer widget"; return QString::null; } QString KugarWidgetPlugin::whatsThis (const QString & feature) const { if (feature == "KReportViewer") return "A widget to view xml reports"; return QString::null; } bool KugarWidgetPlugin::isContainer (const QString &) const { return FALSE; } Q_EXPORT_PLUGIN( KugarWidgetPlugin ) kugar_plugin.pro SOURCES += kugar_plugin.cpp HEADERS += kugar_plugin.h DESTDIR = $(QTDIR)/plugins/designer TARGET = kugar_plugin target.path=$$plugins.path isEmpty(target.path):target.path=$$QT_PREFIX/plugins PROJECTNAME = KugarPlugin TEMPLATE = lib CONFIG += qt warn_on release plugin unix:LIBS += -lkugar LANGUAGE = C++