I have created a custom widget and a plugin for that widget in Designer. I have tested the custom widget localy and it works fine. The widget appears in the widget box in designer/form editor and I can drag i it to my window hand handle the signals & and slots. But when I hit preview or compile the widget doesn´t show. I do not get any error messages and when i look into the generated ui_XXXXX.h and it looks fine. What am I missing? Could Upload All code......

customDial.proj
Qt Code: 
  1. CONFIG += designer \
  2.     plugin \
  3.     debug_and_release
  4. TARGET = $$qtLibraryTarget(speeddialplugin)
  5. TEMPLATE = lib
  6. HEADERS = speeddialplugin.h \
  7.     qtsvgdialgauge.h \
  8.     qtsvgpixmapcache.h
  9. SOURCES = speeddialplugin.cpp \
  10.     qtsvgdialgauge.cpp \
  11.     qtsvgpixmapcache.cpp
  12. RESOURCES = icons.qrc \
  13.     skins.qrc
  14. LIBS += -L.
  15. target.path = $$[QT_INSTALL_PLUGINS]/designer
  16. INSTALLS += target
  17. INCLUDEPATH += $$PWD
  18. DEPENDPATH += $$PWD
  19.  
  20. # include(speeddial.pri)
  21. QT += svg
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speedDialPlugin.h
Qt Code: 
  1. #ifndef SPEEDDIALPLUGIN_H
  2. #define SPEEDDIALPLUGIN_H
  3.  
  4. #include <QtDesigner/QDesignerCustomWidgetInterface>
  5. #include <QObject>
  6. #include <Qt>
  7.  
  8. class speedDialPlugin : public QObject, public QDesignerCustomWidgetInterface
  9. {
  10.     Q_OBJECT
  12.  
  13. public:
  14.     speedDialPlugin(QObject *parent = 0);
  15.  
  16.     bool isContainer() const;
  17.     bool isInitialized() const;
  18.     QIcon icon() const;
  19.     QString domXml() const;
  20.     QString group() const;
  21.     QString includeFile() const;
  22.     QString name() const;
  23.     QString toolTip() const;
  24.     QString whatsThis() const;
  25.     QWidget *createWidget(QWidget *parent);
  26.     void initialize(QDesignerFormEditorInterface *core);
  27.  
  28. private:
  29.     bool m_initialized;
  30. };
  31.  
  32. #endif
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speedDialPlugin.cpp

Qt Code: 
  1. #include "qtsvgdialgauge.h"
  2. #include "speeddialplugin.h"
  3.  
  4. #include <QtCore/QtPlugin>
  5.  
  6. speedDialPlugin::speedDialPlugin(QObject *parent)
  7.     : QObject(parent)
  8. {
  9.     m_initialized = false;
  10. }
  11.  
  12. void speedDialPlugin::initialize(QDesignerFormEditorInterface * /* core */)
  13. {
  14.     if (m_initialized)
  15.         return;
  16.  
  17.     // Add extension registrations, etc. here
  18.  
  19.     m_initialized = true;
  20. }
  21.  
  22. bool speedDialPlugin::isInitialized() const
  23. {
  24.     return m_initialized;
  25. }
  26.  
  27. QWidget *speedDialPlugin::createWidget(QWidget *parent)
  28. {
  29.     //return new speedDial(parent);
  30.  
  31.     QtSvgDialGauge * gauge = new QtSvgDialGauge(parent);
  32.     gauge->setSkin("Tachometer");
  33.     gauge->setMinimum(0);
  34.     gauge->setMaximum(120);
  35.     gauge->setValue(0);
  36.     return gauge;
  37. }
  38.  
  39. QString speedDialPlugin::name() const
  40. {
  41.     return QLatin1String("speedDial");
  42. }
  43.  
  44. QString speedDialPlugin::group() const
  45. {
  46.     return QLatin1String("");
  47. }
  48.  
  49. QIcon speedDialPlugin::icon() const
  50. {
  51.     return QIcon();
  52. }
  53.  
  54. QString speedDialPlugin::toolTip() const
  55. {
  56.     return QLatin1String("");
  57. }
  58.  
  59. QString speedDialPlugin::whatsThis() const
  60. {
  61.     return QLatin1String("");
  62. }
  63.  
  64. bool speedDialPlugin::isContainer() const
  65. {
  66.     return false;
  67. }
  68.  
  69. QString speedDialPlugin::domXml() const
  70. {
  71.     return QLatin1String("<widget class=\"speedDial\" name=\"speedDial\">\n</widget>\n");
  72.  
  73. }
  74.  
  75. QString speedDialPlugin::includeFile() const
  76. {
  77.     return QLatin1String("hh.h");
  78. }
  79.  
  80. Q_EXPORT_PLUGIN2(speeddialplugin, speedDialPlugin)
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qtSvgDialGauge.h
Qt Code: 
  1. /*
  2.  
  3. */
  4.  
  5. #ifndef QT_SVG_DIAL_GAUGE
  6. #define QT_SVG_DIAL_GAUGE
  7. #include <QtGui/QWidget>
  8. #include <Qt>
  9. #include <QtCore/QPair>
  10. #include <QtDesigner/QDesignerExportWidget>
  11.  
  13. class QtSvgPixmapCache;
  14.  
  15. class QDESIGNER_WIDGET_EXPORT QtSvgDialGauge : public QWidget
  16. {
  17.     Q_OBJECT
  18.     Q_PROPERTY(QString skin READ skin WRITE setSkin)
  19.     Q_PROPERTY(int minimum READ minimum WRITE setMinimum)
  20.     Q_PROPERTY(int maximum READ maximum WRITE setMaximum)
  21.     Q_PROPERTY(qreal startAngle READ startAngle WRITE setStartAngle)
  22.     Q_PROPERTY(qreal endAngle READ endAngle WRITE setEndAngle)
  23. public:
  24.     explicit QtSvgDialGauge(QWidget * parent = 0);
  25.     ~QtSvgDialGauge();
  26.  
  27.     void setSkin(const QString& skin);
  28.     QString skin() const;
  29.  
  30.  
  31.     void setMinimum(int minimum);
  32.     void setMaximum(int maximum);
  33.     void setNeedleOrigin(qreal x, qreal y);
  34.     void setStartAngle(qreal angle);
  35.     void setEndAngle(qreal angle);
  36.  
  37.     int value() const;
  38.     int minimum() const;
  39.     int maximum() const;
  40.     qreal needleOriginX() const;
  41.     qreal needleOriginY() const;
  42.     qreal startAngle() const;
  43.     qreal endAngle() const;
  44.  
  45.     virtual QSize minimumSizeHint() const;
  46.     virtual QSize sizeHint() const;
  47.     void setShowOverlay(bool);
  48.  
  49. public slots:
  50.     void setValue(int value);
  51.  
  52. private:
  53.     void init();
  54.     QRectF availableRect(QtSvgPixmapCache * renderObject) const;
  55.  
  56.     QtSvgPixmapCache* m_backgroundRenderer;
  57.     QtSvgPixmapCache* m_needleShadowRenderer;
  58.     QSvgRenderer* m_needleRenderer;
  59.     QRectF availableRect(QSvgRenderer * renderObject) const;
  60.     QtSvgPixmapCache* m_overlayRenderer;
  61.     /** minimum possible value **/
  62.     int m_minimum;
  63.     /** maximum possible value **/
  64.     int m_maximum;
  65.     /** actual value **/
  66.     int m_value;
  67.     /** smallest start angle **/
  68.     qreal m_startAngle;
  69.     /** highest end angle **/
  70.     qreal m_endAngle;
  71.     /** position x of needle **/
  72.     qreal m_originX;
  73.     /** position y of needle **/
  74.     qreal m_originY;
  75.     bool m_showOverlay;
  76.  
  77.     /** name of actual skin **/
  78.     QString m_skin;
  79. protected:
  80.     void paintEvent(QPaintEvent * event);
  81. };
  82.  
  83. #endif // QT_SVG_DIAL_GAUGE
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qtSvgDialGauge.cpp
Qt Code: 
  1. /*
  2.  
  3. */
  4. #include <QtGui/QPainter>
  5. #include <QtSvg/QSvgRenderer>
  6.  
  7. #include "qtsvgdialgauge.h"
  8.  
  9. #include "qtsvgpixmapcache.h"
  10.  
  11. /*!
  12.  
  13.     \class QtSvgDialGauge qtsvgdialgauge.h
  14.  
  15.  
  16.     \code
  17.  
  18.         // Create a QtSvgDialGauge
  19.         QWidget * widget = new QWidget(this)
  20.         QtSvgDialGauge * gauge = new QtSvgDialGauge(widget);
  21.         gauge->setSkin("Beryl");
  22.         widget->addWidget(gauge);
  23.         widget->show();
  24.     \endcode
  25.  
  26. /*!
  27.     Constructor of the widget with \p parent as
  28.     Parent.
  29. */
  30. QtSvgDialGauge::QtSvgDialGauge(QWidget * parent)
  31.         : QWidget(parent),
  32.         m_minimum(0),
  33.         m_maximum(100),
  34.         m_value(0),
  35.         m_startAngle(0),
  36.         m_endAngle(100),
  37.         m_originX(0.5),
  38.         m_originY(0.5),
  39.         m_showOverlay(true)
  40. {
  41.     init();
  42.     setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
  43. }
  44.  
  45. /*!
  46.     Destructor
  47. */
  48. QtSvgDialGauge::~QtSvgDialGauge()
  49. {
  50. }
  51.  
  52.  
  53.  
  54. /*.....
  55. ......
  56. .....
  57. .....
  58. .....
  59. .....*/
  60. }
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qtSvgPixmapCache.h
Qt Code: 
  1. /*
  2.  
  3. */
  4.  
  5.  
  6. #ifndef QT_SVG_PIXMAP_CACHE
  7. #define QT_SVG_PIXMAP_CACHE
  8.  
  9. #include <QtCore/QSizeF>
  10. #include <Qt>
  11. #include <QObject>
  12. #include <QtDesigner/QDesignerExportWidget>
  13.  
  14.  
  15. class QPainter;
  16. class QString;
  17. class QRectF;
  18.  
  19. class QtSvgPixmapCachePrivate;
  20.  
  21. class QDESIGNER_WIDGET_EXPORT QtSvgPixmapCache : public QObject
  22. {
  23.     Q_OBJECT
  24.  
  25. public:
  26.     QtSvgPixmapCache(QObject* parent = NULL);
  27.  
  28. #endif // QT_SVG_PIXMAP_CACHE
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qtSvgPixmapCache.cpp
Qt Code: 
  1. /*
  2. ....
  3. ....
  4. ...*/
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