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Cygwin/X: Correctly allow for the native window frame width in ValidateSizing()

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Fix internal WM to correctly calculate the native window border when validating window sizing

Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
This commit is contained in:
Jon TURNEY 2009-01-07 18:29:16 +00:00
parent a72865868f
commit 888e6961a4
1 changed files with 12 additions and 9 deletions
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21
hw/xwin/winmultiwindowwndproc.c
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@ -207,6 +207,8 @@ ValidateSizing (HWND hwnd, WindowPtr pWin,
WinXSizeHints sizeHints;
RECT *rect;
int iWidth, iHeight;
RECT rcClient, rcWindow;
int iBorderWidthX, iBorderWidthY;
/* Invalid input checking */
if (pWin==NULL || lParam==0)
@ -228,19 +230,20 @@ ValidateSizing (HWND hwnd, WindowPtr pWin,
iWidth = rect->right - rect->left;
iHeight = rect->bottom - rect->top;
/* Now remove size of any borders */
iWidth -= 2 * GetSystemMetrics(SM_CXSIZEFRAME);
iHeight -= (GetSystemMetrics(SM_CYCAPTION)
+ 2 * GetSystemMetrics(SM_CYSIZEFRAME));
/* Now remove size of any borders and title bar */
GetClientRect(hwnd, &rcClient);
GetWindowRect(hwnd, &rcWindow);
iBorderWidthX = (rcWindow.right - rcWindow.left) - (rcClient.right - rcClient.left);
iBorderWidthY = (rcWindow.bottom - rcWindow.top) - (rcClient.bottom - rcClient.top);
iWidth -= iBorderWidthX;
iHeight -= iBorderWidthY;
/* Constrain the size to legal values */
ConstrainSize (sizeHints, &iWidth, &iHeight);
/* Add back the borders */
iWidth += 2 * GetSystemMetrics(SM_CXSIZEFRAME);
iHeight += (GetSystemMetrics(SM_CYCAPTION)
+ 2 * GetSystemMetrics(SM_CYSIZEFRAME));
/* Add back the size of borders and title bar */
iWidth += iBorderWidthX;
iHeight += iBorderWidthY;
/* Adjust size according to where we're dragging from */
switch(wParam) {