AlexanderDymocloudtemple@mksat.netPhilThompsonphil@river-bank.demon.co.ukProgrammer's GuideHow to use &kugar; for reporting in your own programsThere 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 reportsThe 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 renderReportRenders the report onto a screen.void printReportCalls the print dialog to print the report.void clearReportClears the report on a screen and frees report data.
Call this before opening the new report.bool setReportDataconst QString &data_file_nameSets report data from data_file_name file.bool setReportDataconst QIODevice &data_io_deviceSets 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 setReportTemplateconst QString &template_file_nameSets report template from template_file_name file.bool setReportTemplateconst QIODevice &template_io_deviceSets 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:
qmakekugar_plugin.promakePlugin codeThe plugin code consists of three files:kugar_plugin.hkugar_plugin.cppkugar_plugin.proA 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",
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"#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",
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".8 c #efe8e3",
"#v c #f1dcca",
"#. c #f2e2d4",
".p c #f4f4f4",
"#y c #f5daa0",
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".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++