static void motListDragTransferProc(Widget drop_context, Ihandle* ih, Atom *seltype, Atom *type, XtPointer value, unsigned long *length, int format)
{
Atom atomListItem = XInternAtom(iupmot_display, "LIST_ITEM", False);
int idDrag = (int)value; /* starts at 1 */
int idDrop = iupAttribGetInt(ih, "_IUPLIST_DROPITEM"); /* starts at 1 */
if (idDrop==0)
return;
/* shift to start at 0 */
idDrag--;
idDrop--;
if (*type == atomListItem)
{
int is_ctrl;
if (iupListCallDragDropCb(ih, idDrag, idDrop, &is_ctrl) == IUP_CONTINUE) /* starts at 0 */
{
char* text = motListGetIdValueAttrib(ih, idDrag+1); /* starts at 1 */
int count = iupdrvListGetCount(ih);
/* Copy the item to the idDrop position */
if (idDrop >= 0 && idDrop < count) /* starts at 0 */
{
iupdrvListInsertItem(ih, idDrop, text); /* starts at 0, insert before */
if (idDrag > idDrop)
idDrag++;
}
else /* idDrop = -1 */
{
iupdrvListAppendItem(ih, text);
idDrop = count; /* new item is the previous count */
}
/* Selects the drop item */
XmListSelectPos(ih->handle, idDrop+1, FALSE); /* starts at 1 */
iupAttribSetInt(ih, "_IUPLIST_OLDVALUE", idDrop+1); /* starts at 1 */
/* Remove the Drag item if moving */
if (!is_ctrl)
iupdrvListRemoveItem(ih, idDrag); /* starts at 0 */
}
}
iupAttribSet(ih, "_IUPLIST_DROPITEM", NULL);
(void)drop_context;
(void)seltype;
(void)format;
(void)length;
}
int iupListSetIdValueAttrib(Ihandle* ih, const char* name_id, const char* value)
{
int pos;
if (iupStrToInt(name_id, &pos))
{
int count = iupdrvListGetCount(ih);
pos--; /* IUP starts at 1 */
if (!value)
{
if (pos >= 0 && pos <= count-1)
{
if (pos == 0)
iupdrvListRemoveAllItems(ih);
else
{
int i = pos;
while (i < count)
{
iupdrvListRemoveItem(ih, pos);
i++;
}
}
}
}
else
{
if (pos >= 0 && pos <= count-1)
{
iupdrvListRemoveItem(ih, pos);
iupdrvListInsertItem(ih, pos, value);
}
else if (pos == count)
iupdrvListAppendItem(ih, value);
}
}
return 1;
}
int iupListSetIdValueAttrib(Ihandle* ih, int pos, const char* value)
{
int count = iupdrvListGetCount(ih);
pos--; /* IUP starts at 1 */
if (!value)
{
if (pos >= 0 && pos <= count-1)
{
if (pos == 0)
{
iupdrvListRemoveAllItems(ih);
iupAttribSet(ih, "_IUPLIST_OLDVALUE", NULL);
}
else
{
int i = pos;
while (i < count)
{
iupdrvListRemoveItem(ih, pos);
i++;
}
}
}
}
else
{
if (pos >= 0 && pos <= count-1)
{
iupdrvListRemoveItem(ih, pos);
iupdrvListInsertItem(ih, pos, value);
}
else if (pos == count)
iupdrvListAppendItem(ih, value);
}
return 0;
}
static int iListSetRemoveItemAttrib(Ihandle* ih, const char* value)
{
if (!ih->handle) /* do not store the action before map */
return 0;
if (!value)
iupdrvListRemoveAllItems(ih);
else
{
int pos = iupListGetPos(ih, value);
if (pos!=-1)
iupdrvListRemoveItem(ih, pos);
}
return 0;
}
static int iListSetRemoveItemAttrib(Ihandle* ih, const char* value)
{
if (!ih->handle) /* do not do the action before map */
return 0;
if (!value || iupStrEqualNoCase(value, "ALL"))
{
iupdrvListRemoveAllItems(ih);
iupAttribSet(ih, "_IUPLIST_OLDVALUE", NULL);
}
else
{
int id;
if (iupStrToInt(value, &id))
{
int pos = iupListGetPosAttrib(ih, id);
if (pos >= 0)
iupdrvListRemoveItem(ih, pos);
}
}
return 0;
}
static int iListDropData_CB(Ihandle *ih, char* type, void* data, int len, int x, int y)
{
int pos = IupConvertXYToPos(ih, x, y);
int is_ctrl = 0;
char key[5];
/* Data is not the pointer, it contains the pointer */
Ihandle* ih_source;
memcpy((void*)&ih_source, data, len);
/* A copy operation is enabled with the CTRL key pressed, or else a move operation will occour.
A move operation will be possible only if the attribute DRAGSOURCEMOVE is Yes.
When no key is pressed the default operation is copy when DRAGSOURCEMOVE=No and move when DRAGSOURCEMOVE=Yes. */
iupdrvGetKeyState(key);
if (key[1] == 'C')
is_ctrl = 1;
if (ih_source->data->is_multiple)
{
char *buffer = IupGetAttribute(ih_source, "VALUE");
/* Copy all selected items */
int i = 1; /* IUP starts at 1 */
while(buffer[i-1] != '\0')
{
if(buffer[i-1] == '+')
{
iupdrvListInsertItem(ih, pos, IupGetAttribute(ih_source, iupStrReturnInt(i)));
iupdrvListSetImageHandle(ih, ++pos, iupdrvListGetImageHandle(ih_source, i));
}
i++;
}
if (IupGetInt(ih_source, "DRAGSOURCEMOVE") && !is_ctrl)
{
/* Remove all item from source if MOVE */
i = 1; /* IUP starts at 1 */
while(*buffer != '\0')
{
if (*buffer == '+')
iupdrvListRemoveItem(ih_source, --i); /* update index in the source */
i++;
buffer++;
}
}
}
else
{
iupdrvListInsertItem(ih, pos, IupGetAttribute(ih_source, IupGetAttribute(ih_source, "VALUE")));
iupdrvListSetImageHandle(ih, ++pos, iupdrvListGetImageHandle(ih_source, IupGetInt(ih_source, "VALUE")));
if(IupGetInt(ih_source, "DRAGSOURCEMOVE") && !is_ctrl)
{
int srcPos = iupAttribGetInt(ih_source, "_IUP_LIST_SOURCEPOS");
iupdrvListRemoveItem(ih_source, --srcPos); /* IUP starts at 1 */
}
}
(void)type;
return IUP_DEFAULT;
}