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Update displays sample correctly when displays change

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wxEVT_DISPLAY_CHANGED notifies not only about the change of resolution
of a display, but also about removal or addition of a new display, so we
need to completely repopulate the notebook showing the displays on
receiving it.
This commit is contained in:
Vadim Zeitlin
2019-03-30 14:21:01 +01:00
parent e9ca12aaac
commit 8927d7b092
1 changed files with 10 additions and 10 deletions
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20
samples/display/display.cpp
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@@ -81,6 +81,9 @@ public:
void OnLeftClick(wxMouseEvent& event); void OnLeftClick(wxMouseEvent& event);
private: private:
// Fill m_book with the information about all the displays.
void PopuplateWithDisplayInfo();
#if wxUSE_DISPLAY #if wxUSE_DISPLAY
// convert video mode to textual description // convert video mode to textual description
wxString VideoModeToText(const wxVideoMode& mode); wxString VideoModeToText(const wxVideoMode& mode);
@@ -233,6 +236,11 @@ MyFrame::MyFrame(const wxString& title, const wxPoint& pos, const wxSize& size,
// create child controls // create child controls
m_book = new wxBookCtrl(this, wxID_ANY); m_book = new wxBookCtrl(this, wxID_ANY);
PopuplateWithDisplayInfo();
}
void MyFrame::PopuplateWithDisplayInfo()
{
const size_t countDpy = wxDisplay::GetCount(); const size_t countDpy = wxDisplay::GetCount();
for ( size_t nDpy = 0; nDpy < countDpy; nDpy++ ) for ( size_t nDpy = 0; nDpy < countDpy; nDpy++ )
{ {
@@ -426,16 +434,8 @@ void MyFrame::OnLeftClick(wxMouseEvent& event)
void MyFrame::OnDisplayChanged(wxDisplayChangedEvent& event) void MyFrame::OnDisplayChanged(wxDisplayChangedEvent& event)
{ {
// update the current mode text m_book->DeleteAllPages();
for ( size_t n = 0; n < m_book->GetPageCount(); n++ ) PopuplateWithDisplayInfo();
{
wxStaticText *label = wxDynamicCast(m_book->GetPage(n)->
FindWindow(Display_CurrentMode),
wxStaticText);
if ( label )
label->SetLabel(VideoModeToText(wxDisplay(n).GetCurrentMode()));
}
wxLogStatus(this, "Display resolution was changed."); wxLogStatus(this, "Display resolution was changed.");