c++ - How to react to LVN_ITEMCHANGED notification only when user finishes selecting action on multipe selection CListCtrl? -

-

i have dialog 2 list controls , 1 custom control graphic preview.

the first has list of 1 kind of entities (1a, 1b, 1c,...) , second has list of kind of entites (2a, 2b, 2c,...), both of them multi-select.

i want allow user select set of entities highlighted on preview, list last selection has been made.

for example:

  1. select 1a,1b,1c -> highlight them on preview
  2. select 2a,2b,2c -> unhighlight 1a,1b,1c , highlight 2a,2b,2c

if process each lvn_itemchanged notification, preview flickering, want paint preview when user finishes selection function this:

void cpreviewpage::paintselection(hwnd hwnd) {   m_preview.deselectall();   selectarray select;   if(hwnd == m_lstfirst.getsafehwnd())   {     for(int = 0; < m_lstfirst.getitemcount(); i++)     {       if( m_lstfirst.getitemstate(i, lvni_selected) & lvni_selected)       {         entity *pent = (entity *) m_lstfirst.getitemdata(i);         select.append(pent);       }     }   }   else   if(hwnd == m_lstsecond.getsafehwnd())   {     for( int = 0; < m_lstsecond.getitemcount(); i++ )     {       if( m_lstsecond.getitemstate(i, lvni_selected) & lvni_selected)       {         entity *pent = (entity *) m_lstsecond.getitemdata(i);         select.append(pent);       }     }   }   m_preview.paintselect(&select); }

the problem is; when have 2a selected, hold shift , click 2c (to select 2a-2c), multiple lvn_itemchanged , can't detect of them last. if could, possible repaint preview @ right moment, when user finishes his/her selecting action.

i tried call repaint function when lvni_focused:

void cpreviewpage::onlstsecondselchanged(nmhdr *pnmhdr, lresult *presult) {   nm_listview* pnmlistview = (nm_listview*) pnmhdr;    if((pnmlistview->uchanged & lvif_state) && (pnmlistview->unewstate & lvni_focused) )     paintselection(pnmhdr->hwndfrom); }

however, lvni_focused isn't guaranteed last, , don't want add button call paintselection function.

so question is: when right moment when have state of items set, according user selection can call paintselection?


Comments

Post a Comment

Popular posts from this blog

java - WrongTypeOfReturnValue exception thrown when unit testing using mockito -

-
my test list<person> mylist; @test public void testisvalidperson() { mylist = new arraylist<person>(); mylist.add(new person("tom")); when(persondao.get(person)).thenreturn(mylist); when((persondao.get(person)).isempty()).thenreturn(false);//------exception thrown boolean result = service.isvalid("tom"); assertfalse(result); } method tested: public boolean isvalid(string person){ persondao = new persondao(); person personobj = new person(person); return (persondao.get(person).isempty())?false : true; } exception thrown: org.mockito.exceptions.misusing.wrongtypeofreturnvalue: boolean cannot returned get() get() should return list *** if you're unsure why you're getting above error read on. due nature of syntax above problem might occur because: 1. exception *might* occur in wrongly written multi-threaded tests. please refer mockito faq on limitations of concurrency testing. 2. sp
Read more

php - Magento - Deleted Base url key -

-
i working on cleaning url: http://mydomain.com/shop/shop/deals i going through settings in configuration tab in admin panel on magento , change secure , unsecure base urls remove first base url "shop" web page read: http://mydomain.com/shop/deals so changed unsecure base urls mydomain.com/shop mydomain.com , secure 12.345.67.89/shop 12.345.67.89. wrong thing do. i cannot reload page or admin console. how access these files through ftp , change correctly there?? when make changes in admin panel changes made in database not in file. have make changes in database. 1.go database , select core_config_data table under table find web/unsecure/base_url , web/secure/base_url . make changes here. don't forget clear cache in var/cache folder
Read more

android - How to disable Button if EditText is empty ? -

-
i have edittext , button in application. when button clicked,the text entered in edittext added listview. i want disable button if edittext empty.how ? this code button click imagebutton imb=(imagebutton)findviewbyid(r.id.btn_send); imb.setonclicklistener(new onclicklistener() { @override public void onclick(view arg0) { edittext et = (edittext)findviewbyid(r.id.edittext1); string str = et.gettext().tostring(); web1.add(str); toast.maketext(shoutsingleprogram.this, "you entered...."+str, toast.length_short).show(); adapter1.notifydatasetchanged(); et.settext(""); } }); } how can ? edittext1.addtextchangedlistener(new textwatcher() { @override public void ontextchanged(charsequence s, int start, int before, in
Read more