I have a code like this to write install log to a static text and a list control, and i have a button to start the installer that be handle by function OnClickInstallBtn() but every time I call the WriteLogtoScreen(), only the static text change and nothing show up in the list until the OnClickInstallBtn() is done and everything on that list show up all at one.
How can i make it show up right away like the static text?
WriteLogtoScreen(LPCTSTR sLog)
{
int iItems;
iItems = m_ListLog.GetItemCount();
m_ListLog.InsertItem(iItems, sLog);
m_ListLog.Update(iItems);
m_ListLog.SetItemText(iItems, 0, sLog);
m_ListLog.Update(iItems);
UpdateData(FALSE);
SetDlgItemText(IDC_STATIC, sLog);
}
You should call RedrawWindow() if you want to force the redraw of your list explicitly in something like this :
void WriteLogtoScreen(LPCTSTR sLog)
{
int iItems;
iItems = m_ListLog.GetItemCount();
m_ListLog.InsertItem(iItems, sLog);
m_ListLog.Update(iItems);
m_ListLog.SetItemText(iItems, 0, sLog);
m_ListLog.Update(iItems);
UpdateData(FALSE);
//instant redraw
m_ListLog.RedrawWindow();
SetDlgItemText(IDC_STATIC, sLog);
}
Related
I'm writing a C++ wxWidgets calculator application. I want to compress trigonometric function buttons into a single one to save on space, using what's basically a split button. If you left click on it, the current option is used. If you right click, a popup menu is opened, which contains all the buttons; when you click on one of them, it is used and the big button changes.
I've been suggested to use wxComboBox and other stuff for this job, but I preferred using wxPopupTransientWindow because this way I can display the buttons in a grid, making everything - in my opinion - neater.
Problem is, when I choose an option from the menu, the main button's ID changes (because when I reopen the menu the previously clicked button is light up as its ID and the big button's ID match), but the label does not. Furthermore, the popup is supposed to close itself when you left click on one of the buttons, but it does not.
This is the code for the custom button in the popup which is supposed to do all that stuff:
void expandButton::mouseReleased(wxMouseEvent& evt)
{
if (pressed) {
pressed = false;
paintNow();
wxWindow* mBtn = this->GetParent()->GetParent();
mBtn->SetLabel(this->GetLabel());
mBtn->SetId(this->GetId());
this->GetParent()->Close(true);
}
}
This is the code for the custom button in the main frame which opens up the popup (temporary setup just to test if the whole thing is working):
void ikeButton::rightClick(wxMouseEvent& evt) // CREA PANNELLO ESTENSIONE
{
if (flags & EXPANDABLE)
{
std::vector<expandMenuInfo> buttons;
buttons.push_back(expandMenuInfo(L"sin", 3001));
buttons.push_back(expandMenuInfo(L"cos", 3002));
buttons.push_back(expandMenuInfo(L"tan", 3003));
buttons.push_back(expandMenuInfo(L"arcsin", 3004));
buttons.push_back(expandMenuInfo(L"arccos", 3005));
buttons.push_back(expandMenuInfo(L"arctan", 3006));
wxPoint p = this->GetScreenPosition();
size_t sz = this->GetSize().GetHeight() / 1.15;
expandMenu* menu = new expandMenu(this, buttons, sz, wxPoint(
p.x, p.y + this->GetSize().GetHeight() + 2));
menu->SetPosition(wxPoint(
menu->GetPosition().x - ((menu->GetSize().GetWidth() - this->GetSize().GetWidth()) / 2),
menu->GetPosition().y));
menu->Popup();
}
}
Let me know if I need to show more code.
This is probably a terrible way of doing this, but this is basically the first "serious" application I'm creating using the wxWidgets framework. Any help is appreciated.
when I choose an option from the menu, the main button's ID changes
(because when I reopen the menu the previously clicked button is light
up as its ID and the big button's ID match), but the label does not.
If you're creating the popup menu like in your previous post, you had a popup window with a panel as its child and the buttons were then children of the panel layed out with a sizer.
If that's still the case, this->GetParent() and should be the panel, this->GetParent()->GetParent() should be the popup. So this->GetParent()->GetParent()->GetParent() should be the trig function button (assuming you created the popup with the trig function button as the parent).
So I think the line wxWindow* mBtn = this->GetParent()->GetParent(); should be changed to wxWindow* mBtn = this->GetParent()->GetParent()->GetParent();.
Or slightly shorter wxWindow* mBtn = this->GetGrandParent()->GetParent();;
the popup is supposed to close itself when you left click on one of
the buttons, but it does not.
It looks like wxPopupTransientWindow has a special Dismiss method that is supposed to be used to close it.
So I think the line this->GetParent()->Close(true); should be changed to this->GetGrandParent()->Dismiss(); (Assuming as above that the buttons in the popup are children pf a panel).
Alternately, if you want a solution that will work regardless of the parentage of the controls in the popup window, you could have a utility function to find the popup ancestor which would look something like this:
wxPopupTransientWindow* FindPopup(wxWindow* w)
{
wxPopupTransientWindow* popup = NULL;
while ( w != NULL )
{
popup = wxDynamicCast(w, wxPopupTransientWindow);
if ( popup )
{
break;
}
w = w->GetParent();
}
return popup;
}
This uses the wxDynamicCast function which is slightly different from the c++ dynamic_cast expression. wxDynamicCast uses wxWidgets' RTTI system to check if the given pointer can be converted to the given type.
Then the mouseReleased method could use this utility function something like this:
void expandButton::mouseReleased(wxMouseEvent& evt)
{
if (pressed) {
pressed = false;
paintNow();
wxPopupTransientWindow* popup = FindPopup(this);
if (popup ) {
wxWindow* mBtn = popup->GetParent();
mBtn->SetLabel(this->GetLabel());
mBtn->SetId(this->GetId());
mBtn->Refresh();
popup->Dismiss();
}
}
}
I'm not sure why you're setting trig function button to have a new id, but I assume you have a reason.
To make the SetLabel method work in your custom button class, I think the easist thing is to call the SetLabel() method in the button's constructor. This will store the string passed to the constructor in the button's internal label member.
Based on other questions, I think the ikeButton constructor looks something like this:
ikeButton::ikeButton(wxFrame* parent, wxWindowID id, wxString text,...
{
...
this->text = text;
To store the label, you would need to change the line this->text = text; to
SetLabel(text);
And when you draw the button, I think the method you use looks like this:
void ikeButton::render(wxDC& dc)
{
...
dc.DrawText(text, ...);
}
You would need to change, the line dc.DrawText(text, ...); to
dc.DrawText(GetLabel(), ...);
Likewise, any other references to the button's text member should be changed to GetLabel() instead.
Finally, when you set the label in the expandButton::mouseReleased method, it might be a good idea to call button's Refresh() method to force the button to redraw itself. I added that my suggestion for the mouseReleased method above.
I am a beginner in building MFC application. I've just started using list controls (in report view) and I am facing some problems while updating the list. I have three buttons for add, update and delete. Everything works well except the update. Here's the code.
void CAddDetailsDlg::DoDataExchange(CDataExchange* pDX)
{
CDialogEx::DoDataExchange(pDX);
DDX_Control(pDX, IDC_DEPARTMENT, departmentControl);
DDX_Text(pDX, IDC_NAME, m_name);
DDX_Text(pDX, IDC_ID, m_id);
DDX_Text(pDX, IDC_AGE_BUDDY, m_ageVariable);
DDX_CBString(pDX, IDC_DEPARTMENT, m_department);
DDX_Control(pDX, IDC_LIST1, m_listControl);
}
BOOL CAddDetailsDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
// TODO: Add extra initialization here
ageSpin=reinterpret_cast<CSpinButtonCtrl*>(GetDlgItem(IDC_AGE_SPIN));
ageBuddy=reinterpret_cast<CEdit*>(GetDlgItem(IDC_AGE_BUDDY));
ageSpin->SetBuddy((ageBuddy));
ageSpin->SetRange32(18,60);
departmentControl.AddString("Human Resource");
departmentControl.AddString("Manager");
departmentControl.AddString("Administrator");
departmentControl.AddString("Desktop Engineer");
m_listControl.InsertColumn(0,"ID",0,100);
m_listControl.InsertColumn(1,"Name",0,100);
m_listControl.InsertColumn(2,"Age",0,60);
m_listControl.InsertColumn(3,"Department",0,100);
m_listControl.SetExtendedStyle(LVS_EX_GRIDLINES | LVS_EX_FULLROWSELECT );
m_ageVariable="18";
UpdateData(FALSE);
return TRUE; // return TRUE unless you set the focus to a control
// EXCEPTION: OCX Property Pages should return FALSE
}
void CAddDetailsDlg::OnBnClickedEdit()
{
// TODO: Add your control notification handler code here
UpdateData();
if((m_id=="")||(m_name=="")||(m_department=="")||(m_ageVariable==""))
{
MessageBox("Please choose an item to edit","Error");
}
else
{
int index=m_listControl.GetSelectionMark();
m_listControl.SetItemText(index,0,m_id);
m_listControl.SetItemText(index,1,m_name);
m_listControl.SetItemText(index,2,m_ageVariable);
m_listControl.SetItemText(index,3,m_department);
MessageBox("Successfully Updated","Info");
}
}
void CAddDetailsDlg::OnBnClickedNewButton()
{
// TODO: Add your control notification handler code here
UpdateData();
if((m_id=="")||(m_name=="")||(m_department=="")||(m_ageVariable==""))
{
MessageBox("Please fill in all the details","Error");
}
else
{
int count=m_listControl.GetItemCount();
count=m_listControl.InsertItem(count,m_id);
m_listControl.SetItemText(count,1,m_name);
m_listControl.SetItemText(count,2,m_ageVariable);
m_listControl.SetItemText(count,3,m_department);
}
}
Note:-
The update function works fine if I update only the ID. If I try to update all/ many fileds, only the ID gets updated and nothing else. BTW, age is a spinControl, department is a comboBox and the other two are editBox.
Edit:-
I found that both, the value of variable m_name and the editBox value changes to the older values after the line m_listControl.SetItemText(index,0,m_id);. Its the same case with m_age and m_department.
If I comment the line m_listControl.SetItemText(index,0,m_id);, I can update everything at a time except the ID.
I am able to update everything by storing m_name, m_age and m_department in a local variable just before the line m_listControl.SetItemText(index,0,m_id); and using those variables in SetItemText(). But as I'm learning, I wanna know where I'm going wrong.
i think you forget to add UpdateData() before your code which is under Update_Bn_Click because at my side i use your code with updatedata() and its working fine.
UpdateData();
int index=m_List.GetSelectionMark();
m_List.SetItemText(index,0,m_id);
m_List.SetItemText(index,1,m_Name);
m_List.SetItemText(index,2,m_Age);
m_List.SetItemText(index,3,m_DepartMent);
Try pumping some messages after updating the items.
while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
Turn off your sorting.
In your designer:
Properties>Behaviour>Sort set to None.
You have to add Item into 0 colomn index first.
listcontrol->InsertItem(0,_T("text"));
then, you can set text to the subItem;
listctrol->SetItemText(0,1,_T(subText)):
First, make sure the Owner Data property of the control is set to FALSE.
Maybe try m_List.Update(index) after the last SetItemText().
I must admit that everywhere I need updated list elements, I use an Owner Data CListCtrl because I think its faster in case of a big number of items and easier to handle in the long term.
I have CRichEditCtrl object which is read only(Text is for read and not allowed to modified). I want to provide functionality of Text Selection with Mouse for text displayed with CRichEditCtrl object.
Following Code is working to capture event for Left Mouse Button - DOWN & UP
BOOL CReportFormView::PreTranslateMessage(MSG* pMsg)
{
if (m_EditNs->GetFocus()!=NULL)
{
switch (pMsg->message)
{
case WM_LBUTTONDOWN:
return TRUE;
case WM_LBUTTONUP:
return TRUE;
}
}
}
Now looking for some code to write in case block which will highlight selected text. I want to know if there is any API available for CRichEditCtrl object which help to track at which location user pressed Left Mouse Button and released
You could use member function CString strText = m_myRichEditCtrl.GetSelText(); or some other member function. Like GetSel() just a suggestion.
I think you will need to use the EM_CHARFROMPOS message. ex. some form of this:
POINTL pt { x,y }; // ... screen coordinates to test relative to edit
DWORD info = m_EditNS->SendMessage(EM_CHARFROMPOS, 0, pt);
int charIndex = LOWORD(info);
int line = HIWORD(info);
After that, set the selection with normal selection methods.
https://msdn.microsoft.com/en-us/library/windows/desktop/bb761566(v=vs.85).aspx
case 1 : I have a MFC dialog box having a LisBox.
I have added two items in listbox.
Whenever i am double clicking on empty area of list box i.e. not double clicking
on either of two item.
Double click is detecting on empty area of listbox.
case 2: When i created a small MFC test application with listbox. it iis detecting double click only on item, not on empty area.
I compared all properties of both cases but couldn't figure out what is the problem.
Anyone has idea what is going wrong in case 1.
I think it is abnormal process. I've tested your situation in VS2010. In my MFC test application sent LBN_DBLCLK when I double clicked on empty area. If you do not really want to know the reason this weired situation, you can just check whether double click event is occurred on empty area or not. I think it is better way for saving your time.
void CMfcDlgTestDlg::OnLbnDblclkList2()
{
// TODO: Add your control notification handler code here
CListBox* list = (CListBox*)(GetDlgItem(IDC_LIST2));
int cur_sel = list->GetCurSel();
if (cur_sel == -1)
{
return;
}
}
EDIT : FOR ANOTHER CASE
When one of list box item is already selected, how can it handle on ON_LBN_DBLCLK handler?
I think there will be some available methods for solving this, however I use below code and it can be useful way, also.
void CMfcDlgTestDlg::OnLbnDblclkList2()
{
// TODO: Add your control notification handler code here
CListBox* list = (CListBox*)(GetDlgItem(IDC_LIST2));
CPoint cursor;
cursor.x = GetCurrentMessage()->pt.x;
cursor.y = GetCurrentMessage()->pt.y;
list->ScreenToClient(&cursor);
BOOL is_outside = FALSE;
UINT item_index = list->ItemFromPoint(cursor, is_outside);
if(is_outside)
{
//mouse clicked on empty area
return ;
}
else
{
// do something with 'item_index'
}
}
I hope this will help you a little.
I am developing a custom print dialog and page setup using MFC and VS2008 for my Win32 program. Since the code is legacy, I can't take much advantage from MFC view/doc architecture. As a result, I wrote a printing code completely from scratch.
I setup CPrintInfo, instantiate my custom print dialog box and hook this dialog box to the CPrintInfo I just created. When my custom print dialog is up, I have a radio button to let a user toggles the page orientation. For some reasons, I couldn't modify the current DEVMODE at the run-time. As a result, every page I print will end up as a portrait.
Even if I manually set pDevMode->dmOrientation to DMORIENT_LANDSCAPE from the event handler of the custom print dialog, the printing result is still ended up as portrait. I am really not sure why this is happening and how to modify the DevMode after the print dialog is up.
Thank you in advance for any help.
Here is the code I have:
void PrintSomething(CWnd* currentWnd) {
// Create CPrintInfo
CPrintInfo* pPrintInfo = new CPrintInfo;
SetupPrintInfo(pPrintInfo); // simply setup some member variables of CPrintInfo
// Create a custom print dialog
CustomPrintDlg* pCustomPrtDlg = new CustomPrintDlg(FALSE, PD_ALLPAGES | PD_USEDEVMODECOPIES | PD_NOPAGENUMS
| PD_HIDEPRINTTOFILE | PD_NOSELECTION, pPrintInfo, currentWnd);
SetupPrintDialog(pPrintInfo,pCustomPrtDlg);
if ( AfxGetApp()->DoPrintDialog(pCustomPrtDlg) == IDOK ) {
... // proceed a print loop
}
}
Code for setting up the custom print dialog:
void SetupPrintDialog(CPrintInfo* pPrintInfo,CustomPrintDlg* pCustomPrtDlg) {
delete pInfo->m_pPD;
pInfo->m_pPD = pCustomPrtDlg;
pInfo->m_pPD->m_pd.hInstance = AfxGetInstanceHandle();
pInfo->m_pPD->m_pd.lpPrintTemplateName = MAKEINTRESOURCE(IDD_CUSTOM_PRTDLG);
// Set the Flags of the PRINTDLG structure as shown, else the
// changes will have no effect.
pInfo>m_pPD->m_pd.Flags |= PD_ENABLEPRINTTEMPLATE;
// Set the page range.
pInfo>m_pPD->m_pd.nMinPage = 1; // one based page numbers.
pInfo>m_pPD->m_pd.nMaxPage = 0xffff; // how many pages is unknown.
}
When a user toggles the radio button to Landscape, this function will be invoked:
void CustomPrintDlg::OnLandscapeChecked() {
// set the current Devmode to landscape
LPDEVMODE pDevMode = GetDevMode();
GlobalUnlock(pDevMode);
pDevMode->dmOrientation = DMORIENT_LANDSCAPE;
}
A pseucode for the custom print dialog class:
class CustomPrintDlg: public CPrintDialog {
... // just override some methods from CPrintDialog
};
Thanks again,
Unagi
I figured out the solution:
All I need is to call GlobalLock to obtain a pointer to the Devmode before changing the current DevMode.
void CustomPrintDlg::OnLandscapeChecked()
{
// set the current Devmode to landscape
LPDEVMODE pDevMode = GetDevMode();
GlobalLock(pDevMode);
pDevMode->dmOrientation = DMORIENT_LANDSCAPE;
GlobalUnlock(pDevMode)
}
Thanks again for helping me.
Nowhere in your example code do you show how you're creating the DC for printing. When you call CreateDC, you must pass a pointer to a DEVMODE structure; this defines whether the printing will be portrait or landscape.