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Fix The Win32 Backend for Newer Visual Studio Versions

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The GetSystemMetrics() function returns wrong values for SM_CXSIZEFRAME,
SM_CYSIZEFRAME, SM_CXFIXEDFRAME and SM_CYFIXEDFRAME when built with Visual
Studio 2012 and 2013 (unless the XP compatibility setting for the
PlatformToolset entry is turned on), causing the window of Clutter programs
to automatically shrink to a point where they become unusable.

This patch uses AdjustWindowRectEx() for builds using Visual Studio 2012
and later, which deduces the required height and width of the Window
properly.  Unfortunately we can't use this for the VS 2008/2010 builds as
they cause the Window to continually expand as the program is run.

https://bugzilla.gnome.org/show_bug.cgi?id=725873
This commit is contained in:
Chun-wei Fan 2014-03-07 12:28:40 +08:00
parent 45935fbe29
commit ae58ad8c46
1 changed files with 20 additions and 5 deletions
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25
clutter/win32/clutter-stage-win32.c
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@ -138,11 +138,26 @@ get_full_window_size (ClutterStageWin32 *stage_win32,
= clutter_stage_get_user_resizable (stage_win32->wrapper); = clutter_stage_get_user_resizable (stage_win32->wrapper);
/* The window size passed to CreateWindow includes the window /* The window size passed to CreateWindow includes the window
decorations */ decorations */
*width_out = width_in + GetSystemMetrics (resizable ? SM_CXSIZEFRAME gint frame_width, frame_height;
: SM_CXFIXEDFRAME) * 2;
*height_out = height_in + GetSystemMetrics (resizable ? SM_CYSIZEFRAME #if !defined (_MSC_VER) || (_MSC_VER < 1700)
: SM_CYFIXEDFRAME) * 2 frame_width = GetSystemMetrics (resizable ? SM_CXSIZEFRAME : SM_CXFIXEDFRAME);
+ GetSystemMetrics (SM_CYCAPTION); frame_height = GetSystemMetrics (resizable ? SM_CYSIZEFRAME : SM_CYFIXEDFRAME);
#else
/* MSVC 2012 and later returns wrong values from GetSystemMetrics()
* http://connect.microsoft.com/VisualStudio/feedback/details/753224/regression-getsystemmetrics-delivers-different-values
*
* For AdjustWindowRectEx(), it doesn't matter much whether the Window is resizble.
*/
RECT cxrect = {0, 0, 0, 0};
AdjustWindowRectEx (&cxrect, WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_THICKFRAME | WS_DLGFRAME, FALSE, 0);
frame_width = abs (cxrect.bottom);
frame_height = abs (cxrect.left);
#endif
*width_out = width_in + frame_width * 2;
*height_out = height_in + frame_height * 2 + GetSystemMetrics (SM_CYCAPTION);
} }
void void