I want to set the text of combobox that is not present in the combobox list.
For example if the combobox has 3 items:
apple
orange
banana
I am doing this selection change event of combobox.
ON_CBN_SELCHANGE(IDC_COMBO, OnComboClick)
void CmmAcceptCtrl::OnComboClick()
{
CString str;
m_combo.GetLBText(m_combo.GetCurSel(), str);
str += " Test";
m_combo.SetWindowText(str);
}
Now if I select "orange" I expect the text of the combobox to become "orange Test" but the text is not changed, I get "orange" in spite of the fact that I'm doing a SetWindowText.
Is there a way we can have a different text from the one that has been selected from the combobox list?
This is a bit late, but I came here with the same question and then found a trick...
In the ON_CBN_SELCHANGE handler, you can post yourself a message with say
PostMessage( WM_COMMAND, ID_AddTestToMyComboText)
and use SetWindowText in the handler for that.
Related
I have a custom drawn combobox with style CBS_DROPDOWNLIST and CBS_OWNERDRAWVARIABLE I can draw the items of the dropdownlist ok but whe user select an item it is drawn in the combobox static part [the part of combo that stay visible after selecting item and show the selection], I want to give it a custom text like in the following image
But I can't determine it I found a code like this
if(DrawItemStruct.CtlType == ODT_COMBOBOX)//the static part of the combo
DrawComboText(pDC, DrawItemStruct.itemID, &DrawItemStruct.rcItem);
else//the rest items
{
// Copy the text of the item to a string
char sItem[256];
GetString(sItem, DrawItemStruct.itemID);
biDrawText(pDC, sItem, -1, &DrawItemStruct.rcItem, f | DT_VCENTER | DT_SINGLELINE);
}
but when I used it I get all the items has CtlType == ODT_COMBOBOX, when I debugged the above code It return ODT_COMBOBOX for the static part, and for items of the drop down list it return ODT_LISTBOX.
I want to know how to fix this problem, how to detect that I'm drawing the static part or a regular item in the dropdown list?
I just check the state for ODS_COMBOBOXEDIT. If ifthe dcumentation says that this flag is set for the edit Control, it works for the drop down list to.
I have checked combo box implementation like you that works in the sane way.
bool bDrawStaticControl = (pDIS->itemState & ODS_COMBOBOXEDIT)!=0;
What's the easiest way to have an NSTextField with a "recommendation list" dynamically shown below it as the user types? Just like Safari's address bar that has a menu of some sorts (I'm pretty confident Safari's address bar suggestions is menu since it has rounded corners, blue gradient selection, and background blurring).
I've tried using NSTextView's autocompletion facility but found it was inadequate:
It tries to complete words instead of the whole text fields – in other words, selecting an autocomplete suggestion will only replace the current word.
It nudges the autocompletion list forward and align it with the insertion point instead of keeping it align with the text field.
In the sample screenshot above whenever I selected the autocomplete suggestion the text field only replaces K with the suggested item in the list, which results in Abadi Abadi Kurniawan.
These are what I'd like to achieve:
Whenever a suggestion is selected, the entire text field is replaced with the suggestion.
Keep the suggestion list aligned with the text field's left side.
Note: This is not a question about adding progress indicator behind a text field.
The Safari address bar uses a separate window. Apple has example project CustomMenus and it only takes an hour or two to customize it.
Developer session explaining what has to be done Key Event Handling in Cocoa Applications
If you want to be able to select multiple words you need to provide own FieldEditor (credits should go for someone else)
- (id)windowWillReturnFieldEditor:(NSWindow *)sender toObject:(nullable id)client;
{
if ([client isKindOfClass:[NSSearchField class]])
{
if (!_mlFieldEditor)
{
_mlFieldEditor = [[MLFieldEditor alloc] init];
[_mlFieldEditor setFieldEditor:YES];
}
return _mlFieldEditor;
}
return nil;
}
- (void)insertCompletion:(NSString *)word forPartialWordRange:(NSRange)charRange movement:(NSInteger)movement isFinal:(BOOL)flag
{
// suppress completion if user types a space
if (movement == NSRightTextMovement) return;
// show full replacements
if (charRange.location != 0) {
charRange.length += charRange.location;
charRange.location = 0;
}
[super insertCompletion:word forPartialWordRange:charRange movement:movement isFinal:flag];
if (movement == NSReturnTextMovement)
{
[[NSNotificationCenter defaultCenter] postNotificationName:#"MLSearchFieldAutocompleted" object:self userInfo:nil];
}
}
This only addresses half of your answer, but I believe you need to subclass NSTextView and implement the - (NSRange)rangeForUserCompletion method, returning the range of the entire string in the text field. This should make sure that it doesn't just autocomplete the most recently entered word.
If you want a custom menu, you're going to have to do that yourself, probably by implementing the -controlTextDidChange: method and displaying a custom view with a table when appropriate.
How would one get an id of a control given its handle?
I want to set a tooltip on ListView control's header. As far as I figured out I need an id of the control to which I want to add this tooltip. As described in MSDN.
To answer your immediate question, GetDlgCtrlID().
Note that the sample you linked to immediately converts the toolID back to a handle again making your call redundant.
Here is a simple method I wrote for that:
// get identifier to a window
void showWindowID(HWND windowTarget) {
int theID = GetDlgCtrlID(windowTarget);
wchar_t text_buffer[100] = { 0 };
// convert
swprintf(text_buffer, _countof(text_buffer), L"%d", theID);
// print to console
//OutputDebugString(text_buffer);
// output result to a messagebox
MessageBox(nullptr, text_buffer, L"The ID", MB_OK);
}
Use ListView_GetHeader() to get the HWND of the ListView's Header control (which would be the replacement for the GetDlgItem() call in the sample you linked to). You do not need to get the Header's Control ID.
I'm on a roll today with MFC! :D
I have a text box and a list view control.
When the user presses the VK_UP and VK_DOWN keys in the text box, I would like this to happen:
Do some stuff.
Have the list view control also process the message (to highlight the previous/next item).
I want the list view to wrap around the current selection, if the key press is the first in its sequence.
Do some more stuff.
I tried subclassing my edit box in my dialog:
class MyEditBox : public CWnd
{
bool allowWrap;
afx_msg void OnKeyUp(UINT, UINT, UINT) { this->allowWrap = true; }
afx_msg void OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
CListCtrl &listView = static_cast<CListView *>(
this->GetParent()->GetDlgItem(IDC_LIST_VIEW))->GetListCtrl();
if (nChar == VK_UP || nChar == VK_DOWN)
{
int iSelBefore = listView.GetNextItem(-1, LVNI_SELECTED);
this->GetParent()->GetDlgItem(IDC_LIST_VIEW)
->OnKeyDown(nChar, nRepCnt, nFlags); //Oops! Protected member :(
int iSelAfter = listView.GetNextItem(-1, LVNI_SELECTED);
if (iSelBefore == iSelAfter && // Did the selection reach an end?
this->allowWrap) // If so, can we wrap it around?
{
int i = a == 0 ? listView.GetItemCount() - 1 : 0;
listView.SetItemState(i, LVIS_SELECTED | LVIS_FOCUSED,
LVIS_SELECTED | LVIS_FOCUSED);
}
}
this->allowWrap = false;
}
}
but OnKeyDown() is a protected member, so I can't just call it on another control.
Is there a better way to solve this than manually sending the command with SendMessage? Should I change my design, e.g. subclass something else, etc.?
Your intention is to select previous or next item in list control, right? Then you should call the method to do that directly instaed of asking the CListCtrl to "process" your message.
You may call CListCtrl::SetSelectionMark and CListCtrl::SetItemState to select next or previous keystroke. Example:
cListCtrl.SetSelectionMark(nIndex);
cListCtrl.SetItemState(nIndex, LVIS_SELECTED | LVIS_FOCUSED, 0xFF);
You can handle Key Down, Key Up as well as Page Down, Page Up, End, Home or any any key from edit box. You need to do calculation, though.
Or you can just SendMessage. There is no need to call OnKeyDown directly. Let the framework call it for you when you send the message.
I am seeing also other ways to solve this:
Derive a class from CListCtrl called MyListCtrl and choose one of two things:
1.1 Declare MyEditBox as a friend and now you can call the protected methods on MyEditBox
1.2 Add public methods CallOnKeyDown(...) and CallOnKeyup(...) to it that only do what is needed.
And when creating the control, instance a MyListCtrl instead of a CListCtrl. Also replace the listView variable you have shown here to be a MyListCtrl and use the methods you have now available
Use PreTranslateMessage(...). I think this "hammer" solution is worse than sending a message.
I writing a MFC which has a listview control. When the user right clicks any item , I am generating a dynamic menu item with that text that is selected in listview. Everything is displaying properly, but I do not know how to add a message map to that dynamic menu item.
Any help?
void CMyListDlg::OnRclickList(NMHDR* pNMHDR, LRESULT* pResult)
{
// TODO: Add your control notification handler code here
int nIndex = m_List.GetSelectionMark();
CString pString = m_List.GetItemText(nIndex,1);
CMenu menu, * pSubMenu;
int pos=0;
menu.LoadMenu(IDR_MENU1);
pSubMenu = menu.GetSubMenu (0);
pSubMenu->DeleteMenu(0,MF_BYPOSITION);
pSubMenu->InsertMenu(pos,MF_BYPOSITION,NULL,pString);
CPoint oPoint;
GetCursorPos (& oPoint);
pSubMenu-> TrackPopupMenu (TPM_LEFTALIGN, oPoint.x, oPoint.y, this);
*pResult = 0;
}
At the moment you are inserting the menu item with ID = 0 (NULL). That way you can't figure out which command was pressed. You have to assign an ID to the item, the simplest one is to
#define WM_MYMESSAGE WM_USER + 1
then you insert it like this:
pSubMenu->InsertMenu(pos,MF_BYPOSITION,WM_MYMESSAGE,pString);
If you override OnCommand for your window, you get your ID as wParam.
To actually figure out what happened, store some additional information in another class member, like m_nLastItemClicked or ... you get the idea?!
Check the MFCIE sample, it generates a favorite menu from the user's favorite folder and navigates to the favorite url when a favorite menu item is clicked.
Just add ON_COMMAND (and ON_UPDATE_COMMAND_UI if necessary) handlers for the menu items' IDs on your class.