How to add custom widget plugin in Designer's widget box? - Help

[slscripters]

Hi,

I've followed this tutorial http://web.mit.edu/qt-dynamic/www/de...getplugin.html to create my own customized widget. After doing the "make" and "make install" I've seen a library file created in my workspace and as well as in the /designer directory. However when I reload the designer, I don't see my custom widget in the widget box. Please help, these are the things that I've accomplished so far.

The .pro file.

CONFIG   += designer \
            plugin \
            debug_and_release
TEMPLATE = lib
HEADERS += QCustomDialog.h \
    QCustomDialogPlugin.h
SOURCES += QCustomDialog.cpp \
    QCustomDialogPlugin.cpp
 
target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target

CONFIG   += designer \
            plugin \
            debug_and_release
TEMPLATE = lib
HEADERS += QCustomDialog.h \
    QCustomDialogPlugin.h
SOURCES += QCustomDialog.cpp \
    QCustomDialogPlugin.cpp

target.path = $$[QT_INSTALL_PLUGINS]/designer
INSTALLS += target

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Here's my custom widget plugin.

#ifndef QCUSTOMDIALOGPLUGIN_H
#define QCUSTOMDIALOGPLUGIN_H
 
 #include <QDesignerCustomWidgetInterface>
 
 class QCustomDialogPlugin : public QObject, public QDesignerCustomWidgetInterface
 {
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)
 
 public:
     QCustomDialogPlugin(QObject *parent = 0);
 
     bool isContainer() const;
     bool isInitialized() const;
     QIcon icon() const;
     QString domXml() const;
     QString group() const;
     QString includeFile() const;
     QString name() const;
     QString toolTip() const;
     QString whatsThis() const;
     QWidget *createWidget(QWidget *parent);
     void initialize(QDesignerFormEditorInterface *core);
 
 private:
     bool initialized;
 };
 
 
#endif // QCUSTOMDIALOGPLUGIN_H

#ifndef QCUSTOMDIALOGPLUGIN_H
#define QCUSTOMDIALOGPLUGIN_H

 #include <QDesignerCustomWidgetInterface>

 class QCustomDialogPlugin : public QObject, public QDesignerCustomWidgetInterface
 {
     Q_OBJECT
     Q_INTERFACES(QDesignerCustomWidgetInterface)

 public:
     QCustomDialogPlugin(QObject *parent = 0);

     bool isContainer() const;
     bool isInitialized() const;
     QIcon icon() const;
     QString domXml() const;
     QString group() const;
     QString includeFile() const;
     QString name() const;
     QString toolTip() const;
     QString whatsThis() const;
     QWidget *createWidget(QWidget *parent);
     void initialize(QDesignerFormEditorInterface *core);

 private:
     bool initialized;
 };


#endif // QCUSTOMDIALOGPLUGIN_H

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#include "QCustomDialogPlugin.h"
#include "QCustomDialog.h"
#include <QString>
#include <QObject>
#include <QtPlugin>
 
QCustomDialogPlugin::QCustomDialogPlugin(QObject *parent)
    : QObject(parent)
{
    initialized = false;
}
 
bool QCustomDialogPlugin::isInitialized() const
{
    return initialized;
}
 
QWidget *QCustomDialogPlugin::createWidget(QWidget *parent)
{
    return new QCustomDialog(parent);
}
 
 QString QCustomDialogPlugin::name() const
 {
     return "QCustomDialog";
 }
 
 QString QCustomDialogPlugin::group() const
 {
     return "Display Widgets [Examples]";
 }
 
 QIcon QCustomDialogPlugin::icon() const
 {
     return QIcon();
 }
 
 QString QCustomDialogPlugin::toolTip() const
 {
     return "";
 }
 
 QString QCustomDialogPlugin::whatsThis() const
 {
     return "";
 }
 
 bool QCustomDialogPlugin::isContainer() const
 {
     return true;
 }
 
 QString QCustomDialogPlugin::domXml() const
 {
     return "<widget class=\"QCustomDialog\" name=\"customDialog\">\n"
            " <property name=\"geometry\">\n"
            "  <rect>\n"
            "   <x>0</x>\n"
            "   <y>0</y>\n"
            "   <width>400</width>\n"
            "   <height>200</height>\n"
            "  </rect>\n"
            " </property>\n"
            " <property name=\"toolTip\" >\n"
            "  <string>The current time</string>\n"
            " </property>\n"
            " <property name=\"whatsThis\" >\n"
            "  <string>Qt Custom Dialog "
            "the current time.</string>\n"
            " </property>\n"
            "</widget>\n";
 }
 
 QString QCustomDialogPlugin::includeFile() const
 {
     return "QCustomDialog.h";
 }
 
 Q_EXPORT_PLUGIN2(libCustomWidget, QCustomDialogPlugin)

#include "QCustomDialogPlugin.h"
#include "QCustomDialog.h"
#include <QString>
#include <QObject>
#include <QtPlugin>

QCustomDialogPlugin::QCustomDialogPlugin(QObject *parent)
    : QObject(parent)
{
    initialized = false;
}

bool QCustomDialogPlugin::isInitialized() const
{
    return initialized;
}

QWidget *QCustomDialogPlugin::createWidget(QWidget *parent)
{
    return new QCustomDialog(parent);
}

 QString QCustomDialogPlugin::name() const
 {
     return "QCustomDialog";
 }

 QString QCustomDialogPlugin::group() const
 {
     return "Display Widgets [Examples]";
 }

 QIcon QCustomDialogPlugin::icon() const
 {
     return QIcon();
 }

 QString QCustomDialogPlugin::toolTip() const
 {
     return "";
 }

 QString QCustomDialogPlugin::whatsThis() const
 {
     return "";
 }

 bool QCustomDialogPlugin::isContainer() const
 {
     return true;
 }

 QString QCustomDialogPlugin::domXml() const
 {
     return "<widget class=\"QCustomDialog\" name=\"customDialog\">\n"
            " <property name=\"geometry\">\n"
            "  <rect>\n"
            "   <x>0</x>\n"
            "   <y>0</y>\n"
            "   <width>400</width>\n"
            "   <height>200</height>\n"
            "  </rect>\n"
            " </property>\n"
            " <property name=\"toolTip\" >\n"
            "  <string>The current time</string>\n"
            " </property>\n"
            " <property name=\"whatsThis\" >\n"
            "  <string>Qt Custom Dialog "
            "the current time.</string>\n"
            " </property>\n"
            "</widget>\n";
 }

 QString QCustomDialogPlugin::includeFile() const
 {
     return "QCustomDialog.h";
 }

 Q_EXPORT_PLUGIN2(libCustomWidget, QCustomDialogPlugin)

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I have not posted the widget class itself because I believe its already working. I've tried using it manually or without using the designer and it shows when run.

[axeljaeger]

Open About Plugins in Designer/creator and see whether your library is already listed there. Then there should be an error message indicating that is going wrong.