void fgPlatformReshapeWindow ( SFG_Window *window, int width, int height )
{
RECT windowRect;
/*
* For windowed mode, get the current position of the
* window and resize taking the size of the frame
* decorations into account.
*/
/* "GetWindowRect" returns the pixel coordinates of the outside of the window */
GetWindowRect( window->Window.Handle, &windowRect );
/* Create rect in FreeGLUT format, (X,Y) topleft outside window, WxH of client area */
windowRect.right = windowRect.left+width;
windowRect.bottom = windowRect.top+height;
if (window->Parent == NULL)
/* get the window rect from this to feed to SetWindowPos, correct for window decorations */
fghComputeWindowRectFromClientArea_QueryWindow(window,&windowRect,TRUE);
else
{
/* correct rect for position client area of parent window
* (SetWindowPos input for child windows is in coordinates
* relative to the parent's client area).
* Child windows don't have decoration, so no need to correct
* for them.
*/
RECT parentRect;
parentRect = fghGetClientArea( window->Parent, FALSE );
windowRect.left -= parentRect.left;
windowRect.right -= parentRect.left;
windowRect.top -= parentRect.top;
windowRect.bottom -= parentRect.top;
}
/* Do the actual resizing */
SetWindowPos( window->Window.Handle,
HWND_TOP,
windowRect.left, windowRect.top,
windowRect.right - windowRect.left,
windowRect.bottom- windowRect.top,
SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
SWP_NOZORDER
);
}
void fgPlatformReshapeWindow ( SFG_Window *window, int width, int height )
{
RECT windowRect;
/*
* HACK HACK HACK:
* Before we do anything else, check if this is a newly created window
* that did not have its windowStatus/visibility func called yet
* we do that on first paint, but because I want to keep the paint
* operation as lean as possible, we do it here. The first paint
* goes together with a first resize call before the display callback
* is called, so this is just in time. Shitty place to do it, but this
* is the only reliable way I can think of to call the callback upon
* first draw of the window.
* More broadly speaking, I know this is an ugly hack, but I'm not sure
* what else to do about it. Depending on WM_ACTIVATE would not work
* as not all windows get this when you are opening multiple before the
* mainloop starts. WM_SHOWWINDOW looked like an interesting candidate,
* but it is generated and processed before glutCreate(Sub)Window
* returns, so no callback can yet be set on the window.
*/
/* Check windowStatus/visibility func has been notified that window is visible (deferred from creation time to give user opportunity to register callbacks) */
if (!window->State.pWState.WindowFuncCalled)
{
fghNotifyWindowStatus(window);
window->State.pWState.WindowFuncCalled = GL_TRUE;
}
/*
* For windowed mode, get the current position of the
* window and resize taking the size of the frame
* decorations into account.
*
* Note on maximizing behavior of Windows: the resize borders are off
* the screen such that the client area extends all the way from the
* leftmost corner to the rightmost corner to maximize screen real
* estate. A caption is still shown however to allow interaction with
* the window controls. This is default behavior of Windows that
* FreeGLUT sticks with. To alter, one would have to check if
* WS_MAXIMIZE style is set when a resize event is triggered, and
* then manually correct the windowRect to put the borders back on
* screen.
*/
/* "GetWindowRect" returns the pixel coordinates of the outside of the window */
GetWindowRect( window->Window.Handle, &windowRect );
/* Create rect in FreeGLUT format, (X,Y) topleft outside window, WxH of client area */
windowRect.right = windowRect.left+width;
windowRect.bottom = windowRect.top+height;
if (window->Parent == NULL)
/* get the window rect from this to feed to SetWindowPos, correct for window decorations */
fghComputeWindowRectFromClientArea_QueryWindow(&windowRect,window,TRUE);
else
{
/* correct rect for position client area of parent window
* (SetWindowPos input for child windows is in coordinates
* relative to the parent's client area).
* Child windows don't have decoration, so no need to correct
* for them.
*/
RECT parentRect;
fghGetClientArea( &parentRect, window->Parent );
OffsetRect(&windowRect,-parentRect.left,-parentRect.top);
}
/* Do the actual resizing */
SetWindowPos( window->Window.Handle,
HWND_TOP,
windowRect.left, windowRect.top,
windowRect.right - windowRect.left,
windowRect.bottom- windowRect.top,
SWP_NOACTIVATE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING |
SWP_NOZORDER
);
/* Set new width and height so we can test for that in WM_SIZE message handler and don't do anything if not needed */
window->State.Width = width;
window->State.Height = height;
}
