undefined reference to `vtable for KisCropSelection?

[Casper Boemann]

Have you written the destructor?

On Saturday 15 October 2005 18:58, Michael Thaler wrote:
> Hello,
>
> I want to refactor the crop tool. I created a new class KisCropSelection:
>
> kis_crop_selection.h:
>
> #ifndef KIS_CROP_SELECTION_H_
> #define KIS_CROP_SELECTION_H_
>
> #include <qregion.h>
>
> enum handleType
>     {
>         None = 0,
>         UpperLeft = 1,
>         Left = 2,
>         LowerLeft = 3,
>         Lower = 4,
>         LowerRight = 5,
>         Right = 6,
>         UpperRight = 7,
>         Upper = 8
>     };
>
> class KisCropSelection
> {
>     public:
>         KisCropSelection(Q_INT32 x, Q_INT32 y, Q_INT32 width, Q_INT32
> height, Q_UINT32 handleSize=13);
>         KisCropSelection(QRect &rect, Q_UINT32 handleSize=13);
>         virtual ~KisCropSelection();
>     private:
>         Q_INT32 m_x, m_y, m_width, m_height;
>         Q_INT32 m_handleSize;
>         QRegion m_handlesRegion;
> };
>
> #endif // KIS_CROP_SELECTION_CROP_H_
>
> kis_crop_selection.cc:
>
> #include <qrect.h>
>
> #include "kis_crop_selection.h"
>
> KisCropSelection::KisCropSelection(Q_INT32 x, Q_INT32 y, Q_INT32 width,
> Q_INT32 height, Q_UINT32 handleSize) : m_x(x), m_y(y), m_width(width),
> m_height(height), m_handleSize(handleSize) {}
>
> KisCropSelection::KisCropSelection(QRect &rect, Q_UINT32 handleSize)
> {
>     KisCropSelection(rect.x(), rect.y(), rect.width(), rect.height(),
> handleSize);
> }
>
> When I try to compile this class, I get the following error:
>
> /bin/sh ../../../libtool --silent --tag=CXX --mode=link g++  -Wno-long-long
> -Wundef -ansi -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -Wcast-align -Wconversion
> -Wchar-subscripts -Wall -W -Wpointer-arith -g3 -fno-inline
> -Wformat-security -Wmissing-format-attribute -Wno-non-virtual-dtor
> -fno-exceptions
> -fno-check-new -fno-common -DQT_CLEAN_NAMESPACE -DQT_NO_ASCII_CAST
> -DQT_NO_STL -DQT_NO_COMPAT -DQT_NO_TRANSLATION -DHAVE_KNEWSTUFF    -o
> kritatoolcrop.la -rpath /usr/local/lib/kde3 -L/usr/lib -L/usr/share/qt3/lib
> -L/usr/X11R6/lib    -module -avoid-version -module -no-undefined
> -Wl,--no-undefined -Wl,--allow-shlib-undefined -R /usr/local/lib -R
> /usr/lib -R /usr/share/qt3/lib -R /usr/X11R6/lib  tool_crop.lo
> kis_tool_crop.lo kis_crop_selection.lo wdg_tool_crop.lo
> ../../libkritacommon.la
> .libs/kis_crop_selection.o: In function `KisCropSelection':
> /usr/local/src/kde/koffice/krita/plugins/tool_crop/kis_crop_selection.cc:25
>: undefined reference to `vtable for KisCropSelection'
> /usr/local/src/kde/koffice/krita/plugins/tool_crop/kis_crop_selection.cc:25
>: undefined reference to `vtable for KisCropSelection'
> /usr/local/src/kde/koffice/krita/plugins/tool_crop/kis_crop_selection.cc:27
>: undefined reference to `vtable for KisCropSelection'
> /usr/local/src/kde/koffice/krita/plugins/tool_crop/kis_crop_selection.cc:29
>: undefined reference to `KisCropSelection::~KisCropSelection()'
> /usr/local/src/kde/koffice/krita/plugins/tool_crop/kis_crop_selection.cc:27
>: undefined reference to `vtable for KisCropSelection'
> /usr/local/src/kde/koffice/krita/plugins/tool_crop/kis_crop_selection.cc:29
>: undefined reference to `KisCropSelection::~KisCropSelection()'
> collect2: ld returned 1 exit status
>
> Does somebody understand this? What am I doing wrong here?
>
> Greetings,
> Michael
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-- 
best regards / venlig hilsen
Casper Boemann