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Turn wxCAPTION on automatically if it's required by other styles

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The documentation used to warn that wxXXX_BOX styles were ignored unless
wxCAPTION was also specified, but this was actually wrong, at least for
wxOSX, which instead enabled wxCAPTION too if any of the BOX flags was
given.

And this behaviour seems more useful, as it's not really obvious why the
boxes are not shown otherwise, so make wxMSW behave like this too and
update the documentation.
This commit is contained in:
Vadim Zeitlin 2023-05-27 14:08:57 +01:00
parent f2f2868de5
commit fb30d563a5
3 changed files with 24 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

14
interface/wx/dialog.h
View file

@ -92,7 +92,10 @@ enum wxDialogLayoutAdaptationMode
@beginStyleTable
@style{wxCAPTION}
Puts a caption on the dialog box.
Shows the title bar, containing the window title, for this window.
Note that this style is implicitly enabled by wxMINIMIZE_BOX,
wxMAXIMIZE_BOX and wxCLOSE_BOX on most systems as the corresponding
buttons couldn't be shown if the window had no title bar at all.
@style{wxDEFAULT_DIALOG_STYLE}
Equivalent to a combination of wxCAPTION, wxCLOSE_BOX and
wxSYSTEM_MENU (the last one is not used under Unix).
@ -101,11 +104,14 @@ enum wxDialogLayoutAdaptationMode
@style{wxSYSTEM_MENU}
Display a system menu.
@style{wxCLOSE_BOX}
Displays a close box on the frame.
Displays a close box on the frame. This style implicitly enables
wxCAPTION too.
@style{wxMAXIMIZE_BOX}
Displays a maximize box on the dialog.
Displays a maximize box on the dialog. This style implicitly enables
wxCAPTION too.
@style{wxMINIMIZE_BOX}
Displays a minimize box on the dialog.
Displays a minimize box on the dialog. This style implicitly enables
wxCAPTION too.
@style{wxTHICK_FRAME}
Display a thick frame around the window.
@style{wxSTAY_ON_TOP}

20
interface/wx/frame.h
View file

@ -61,29 +61,31 @@
@style{wxICONIZE}
Display the frame iconized (minimized). Windows only.
@style{wxCAPTION}
Puts a caption on the frame. Notice that this flag is required by
wxMINIMIZE_BOX, wxMAXIMIZE_BOX and wxCLOSE_BOX on most systems as
the corresponding buttons cannot be shown if the window has no title
bar at all. I.e. if wxCAPTION is not specified those styles would be
simply ignored.
Shows the title bar, containing the window title, for this window.
Note that this style is implicitly enabled by wxMINIMIZE_BOX,
wxMAXIMIZE_BOX and wxCLOSE_BOX on most systems as the corresponding
buttons couldn't be shown if the window had no title bar at all.
@style{wxMINIMIZE}
Identical to wxICONIZE. Windows only.
@style{wxMINIMIZE_BOX}
Displays a minimize box on the frame.
Displays a minimize box on the frame. This style implicitly enables
wxCAPTION too.
@style{wxMAXIMIZE}
Displays the frame maximized. Windows and GTK+ only.
@style{wxMAXIMIZE_BOX}
Displays a maximize box on the frame. Notice that under wxGTK
wxRESIZE_BORDER must be used as well or this style is ignored.
This style implicitly enables wxCAPTION too.
@style{wxCLOSE_BOX}
Displays a close box on the frame.
Displays a close box on the frame. This style implicitly enables
wxCAPTION too.
@style{wxSTAY_ON_TOP}
Stay on top of all other windows, see also wxFRAME_FLOAT_ON_PARENT.
@style{wxSYSTEM_MENU}
Displays a system menu containing the list of various windows
commands in the window title bar. Unlike wxMINIMIZE_BOX,
wxMAXIMIZE_BOX and wxCLOSE_BOX styles this style can be used without
wxCAPTION, at least under Windows, and makes the system menu
wxMAXIMIZE_BOX and wxCLOSE_BOX styles this style doesn't turn on
wxCAPTION under MSW and if it's not specified, makes the system menu
available without showing it on screen in this case. However it is
recommended to only use it together with wxCAPTION for consistent
behaviour under all platforms.

4
src/msw/toplevel.cpp
View file

@ -130,7 +130,9 @@ WXDWORD wxTopLevelWindowMSW::MSWGetStyle(long style, WXDWORD *exflags) const
else
msflags |= WS_POPUP;
if ( style & wxCAPTION )
// We need to use WS_CAPTION to show any of the minimize/maximize/close
// buttons, so enable it if any of these styles is specified.
if ( style & (wxCAPTION | wxMINIMIZE_BOX | wxMAXIMIZE_BOX | wxCLOSE_BOX) )
msflags |= WS_CAPTION;
else
msflags |= WS_POPUP;