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Fix option to load image as HiDPI for GTK3

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With GTK3, GetContentScaleFactor() does not return correct result until
TLW is realized, so use wxUpdateUIEvent to enable it later
This commit is contained in:
Paul Cornett
2016-02-25 08:24:44 -08:00
parent 9819bd81a4
commit 1e7121c776
1 changed files with 8 additions and 2 deletions
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10
samples/image/image.cpp
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@@ -81,6 +81,7 @@ public:
void OnNewFrameHiDPI(wxCommandEvent&);
void OnImageInfo( wxCommandEvent &event );
void OnThumbnail( wxCommandEvent &event );
void OnUpdateNewFrameHiDPI(wxUpdateUIEvent&);
#ifdef wxHAVE_RAW_BITMAP
void OnTestRawBitmap( wxCommandEvent &event );
@@ -649,6 +650,7 @@ wxBEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(wxID_COPY, MyFrame::OnCopy)
EVT_MENU(wxID_PASTE, MyFrame::OnPaste)
#endif // wxUSE_CLIPBOARD
EVT_UPDATE_UI(ID_NEW_HIDPI, MyFrame::OnUpdateNewFrameHiDPI)
wxEND_EVENT_TABLE()
MyFrame::MyFrame()
@@ -661,8 +663,7 @@ MyFrame::MyFrame()
wxMenu *menuImage = new wxMenu;
menuImage->Append( ID_NEW, wxT("&Show any image...\tCtrl-O"));
if (GetContentScaleFactor() > 1)
menuImage->Append(ID_NEW_HIDPI, wxS("Show any image as &HiDPI...\tCtrl-H"));
menuImage->Append(ID_NEW_HIDPI, wxS("Show any image as &HiDPI...\tCtrl-H"));
menuImage->Append( ID_INFO, wxT("Show image &information...\tCtrl-I"));
#ifdef wxHAVE_RAW_BITMAP
menuImage->AppendSeparator();
@@ -777,6 +778,11 @@ void MyFrame::OnNewFrameHiDPI(wxCommandEvent&)
new MyImageFrame(this, filename, image, GetContentScaleFactor());
}
void MyFrame::OnUpdateNewFrameHiDPI(wxUpdateUIEvent& event)
{
event.Enable(GetContentScaleFactor() > 1);
}
void MyFrame::OnImageInfo( wxCommandEvent &WXUNUSED(event) )
{
wxImage image;