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Linux: Fix PreferencesDialog build with GCC 4.4

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Replace the Linux ntfs3 help icon paint lambda with a small wxWindow
subclass and regular paint event handler.

GCC 4.4, used on CentOS 6, builds with -std=c++0x but does not support
the lambda syntax used in PreferencesDialog.cpp, causing compilation to
fail at the ntfs3 help icon handler.

The drawing behavior is unchanged.
This commit is contained in:
Mounir IDRASSI
2026-05-17 13:52:45 +09:00
parent 80bce77cb9
commit 8b1c668b77
1 changed files with 43 additions and 29 deletions
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72
src/Main/Forms/PreferencesDialog.cpp
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@@ -27,6 +27,48 @@
namespace VeraCrypt
{
#ifdef TC_LINUX
class Ntfs3HelpIconWindow : public wxWindow
{
public:
Ntfs3HelpIconWindow (wxWindow *parent)
: wxWindow (parent, wxID_ANY, wxDefaultPosition, wxSize (16, 16))
{
SetMinSize (wxSize (16, 16));
Bind (wxEVT_PAINT, &Ntfs3HelpIconWindow::OnPaint, this);
}
protected:
void OnPaint (wxPaintEvent&)
{
wxPaintDC dc (this);
wxSize size = GetClientSize();
wxColour backgroundColor = GetBackgroundColour();
wxColour color = GetForegroundColour();
int diameter = (size.GetWidth() < size.GetHeight() ? size.GetWidth() : size.GetHeight()) - 1;
int x = (size.GetWidth() - diameter) / 2;
int y = (size.GetHeight() - diameter) / 2;
wxCoord textWidth, textHeight;
if (GetParent())
backgroundColor = GetParent()->GetBackgroundColour();
if (!backgroundColor.IsOk())
backgroundColor = wxSystemSettings::GetColour (wxSYS_COLOUR_WINDOW);
if (!color.IsOk())
color = wxSystemSettings::GetColour (wxSYS_COLOUR_WINDOWTEXT);
dc.SetBackground (wxBrush (backgroundColor));
dc.Clear();
dc.SetPen (wxPen (color, 1));
dc.SetBrush (*wxTRANSPARENT_BRUSH);
dc.SetTextForeground (color);
dc.DrawEllipse (x, y, diameter, diameter);
dc.GetTextExtent (L"?", &textWidth, &textHeight);
dc.DrawText (L"?", (size.GetWidth() - textWidth) / 2, (size.GetHeight() - textHeight) / 2 - 1);
}
};
#endif
PreferencesDialog::PreferencesDialog (wxWindow* parent)
: PreferencesDialogBase (parent),
LastVirtualKeyPressed (0),
@@ -61,36 +103,8 @@ namespace VeraCrypt
MountNtfsWithNtfs3CheckBox->SetToolTip (LangString["LINUX_PREF_MOUNT_NTFS_WITH_NTFS3_HELP"]);
ntfs3PreferenceSizer->Add (MountNtfsWithNtfs3CheckBox, 0, wxALIGN_CENTER_VERTICAL | wxRIGHT, 5);
wxWindow *ntfs3HelpIcon = new wxWindow (FilesystemSizer->GetStaticBox(), wxID_ANY, wxDefaultPosition, wxSize (16, 16));
ntfs3HelpIcon->SetMinSize (wxSize (16, 16));
wxWindow *ntfs3HelpIcon = new Ntfs3HelpIconWindow (FilesystemSizer->GetStaticBox());
ntfs3HelpIcon->SetToolTip (LangString["LINUX_PREF_MOUNT_NTFS_WITH_NTFS3_HELP"]);
ntfs3HelpIcon->Bind (wxEVT_PAINT, [ntfs3HelpIcon] (wxPaintEvent&)
{
wxPaintDC dc (ntfs3HelpIcon);
wxSize size = ntfs3HelpIcon->GetClientSize();
wxColour backgroundColor = ntfs3HelpIcon->GetBackgroundColour();
wxColour color = ntfs3HelpIcon->GetForegroundColour();
int diameter = (size.GetWidth() < size.GetHeight() ? size.GetWidth() : size.GetHeight()) - 1;
int x = (size.GetWidth() - diameter) / 2;
int y = (size.GetHeight() - diameter) / 2;
wxCoord textWidth, textHeight;
if (ntfs3HelpIcon->GetParent())
backgroundColor = ntfs3HelpIcon->GetParent()->GetBackgroundColour();
if (!backgroundColor.IsOk())
backgroundColor = wxSystemSettings::GetColour (wxSYS_COLOUR_WINDOW);
if (!color.IsOk())
color = wxSystemSettings::GetColour (wxSYS_COLOUR_WINDOWTEXT);
dc.SetBackground (wxBrush (backgroundColor));
dc.Clear();
dc.SetPen (wxPen (color, 1));
dc.SetBrush (*wxTRANSPARENT_BRUSH);
dc.SetTextForeground (color);
dc.DrawEllipse (x, y, diameter, diameter);
dc.GetTextExtent (L"?", &textWidth, &textHeight);
dc.DrawText (L"?", (size.GetWidth() - textWidth) / 2, (size.GetHeight() - textHeight) / 2 - 1);
});
ntfs3PreferenceSizer->Add (ntfs3HelpIcon, 0, wxALIGN_CENTER_VERTICAL | wxLEFT, 10);
FilesystemSizer->Add (ntfs3PreferenceSizer, 0, wxALL, 5);