#include <GL/freeglut.h>
#include "../fg_internal.h"
-
extern void fghRedrawWindow ( SFG_Window *window );
+extern void fghRedrawWindowAndChildren ( SFG_Window *window );
+extern void fghOnReshapeNotify(SFG_Window *window, int width, int height, GLboolean forceNotify);
+extern void fghOnPositionNotify(SFG_Window *window, int x, int y, GLboolean forceNotify);
+extern void fghComputeWindowRectFromClientArea_QueryWindow( RECT *clientRect, const SFG_Window *window, BOOL posIsOutside );
+extern void fghGetClientArea( RECT *clientRect, const SFG_Window *window, BOOL posIsOutside );
extern void fgNewWGLCreateContext( SFG_Window* window );
extern GLboolean fgSetupPixelFormat( SFG_Window* window, GLboolean checkOnly,
-static void fghUpdateWindowStatus(SFG_Window *window, GLboolean visState)
+static void fghPlatformOnWindowStatusNotify(SFG_Window *window, GLboolean visState, GLboolean forceNotify)
{
+ GLboolean notify = GL_FALSE;
SFG_Window* child;
if (window->State.Visible != visState)
{
window->State.Visible = visState;
- /* On win32 we only have two states, window displayed and window not displayed (iconified)
- * We map these to GLUT_FULLY_RETAINED and GLUT_HIDDEN respectively.
- */
- INVOKE_WCB( *window, WindowStatus, ( visState ? GLUT_FULLY_RETAINED:GLUT_HIDDEN ) );
/* If top level window (not a subwindow/child), and icon title text available, switch titles based on visibility state */
if (!window->Parent && window->State.pWState.IconTitle)
/* not visible, set icon title */
SetWindowText( window->Window.Handle, window->State.pWState.IconTitle );
}
+
+ notify = GL_TRUE;
}
- /* Also set visibility state for children */
+ if (notify || forceNotify)
+ {
+ SFG_Window *saved_window = fgStructure.CurrentWindow;
+
+ /* On win32 we only have two states, window displayed and window not displayed (iconified)
+ * We map these to GLUT_FULLY_RETAINED and GLUT_HIDDEN respectively.
+ */
+ INVOKE_WCB( *window, WindowStatus, ( visState ? GLUT_FULLY_RETAINED:GLUT_HIDDEN ) );
+ fgSetWindow( saved_window );
+ }
+
+ /* Also set windowStatus/visibility state for children */
for( child = ( SFG_Window * )window->Children.First;
child;
child = ( SFG_Window * )child->Node.Next )
{
- fghUpdateWindowStatus(child, visState);
+ fghPlatformOnWindowStatusNotify(child, visState, GL_FALSE); /* No need to propagate forceNotify. Childs get this from their own INIT_WORK */
}
}
-void fghNotifyWindowStatus(SFG_Window *window)
-{
- INVOKE_WCB( *window, WindowStatus, ( window->State.Visible?GLUT_FULLY_RETAINED:GLUT_HIDDEN ) );
-
- /* Don't notify children, they get their own just before first time they're drawn */
-}
-
void fgPlatformMainLoopPreliminaryWork ( void )
{
/* no-op */
#endif
}
- window->State.NeedToResize = GL_TRUE;
- /* if we used CW_USEDEFAULT (thats a negative value) for the size
- * of the window, query the window now for the size at which it
- * was created.
- */
- if( ( window->State.Width < 0 ) || ( window->State.Height < 0 ) )
- {
- SFG_Window *current_window = fgStructure.CurrentWindow;
-
- fgSetWindow( window );
- window->State.Width = glutGet( GLUT_WINDOW_WIDTH );
- window->State.Height = glutGet( GLUT_WINDOW_HEIGHT );
- fgSetWindow( current_window );
- }
-
ReleaseDC( window->Window.Handle, window->Window.pContext.Device );
#if defined(_WIN32_WCE)
/* Update visibility state of the window */
if (wParam==SIZE_MINIMIZED)
- fghUpdateWindowStatus(window,GL_FALSE);
+ fghPlatformOnWindowStatusNotify(window,GL_FALSE,GL_FALSE);
else if (wParam==SIZE_RESTORED && !window->State.Visible)
- fghUpdateWindowStatus(window,GL_TRUE);
+ fghPlatformOnWindowStatusNotify(window,GL_TRUE,GL_FALSE);
- /* Check window visible, we don't want to resize when the user or glutIconifyWindow minimized the window */
+ /* Check window visible, we don't want do anything when we get a WM_SIZE because the user or glutIconifyWindow minimized the window */
if( window->State.Visible )
{
- /* get old values first to compare to below */
- int width = window->State.Width, height=window->State.Height;
+ int width, height;
#if defined(_WIN32_WCE)
- window->State.Width = HIWORD(lParam);
- window->State.Height = LOWORD(lParam);
+ width = HIWORD(lParam);
+ height = LOWORD(lParam);
#else
- window->State.Width = LOWORD(lParam);
- window->State.Height = HIWORD(lParam);
+ width = LOWORD(lParam);
+ height = HIWORD(lParam);
#endif /* defined(_WIN32_WCE) */
- if (width!=window->State.Width || height!=window->State.Height)
- {
- SFG_Window* saved_window = fgStructure.CurrentWindow;
-
- /* size changed, call reshape callback */
- INVOKE_WCB( *window, Reshape, ( width, height ) );
- glutPostRedisplay( );
- if( window->IsMenu )
- fgSetWindow( saved_window );
- }
+ /* Update state and call callback, if there was a change */
+ fghOnReshapeNotify(window, width, height, GL_FALSE);
}
/* according to docs, should return 0 */
lRet = 0;
break;
- case WM_MOVE:
+ case WM_SIZING:
{
- SFG_Window* saved_window = fgStructure.CurrentWindow;
- RECT windowRect;
+ /* User resize-dragging the window, call reshape callback and
+ * force redisplay so display keeps running during dragging.
+ * Screen still wont update when not moving the cursor though...
+ */
+ /* PRECT prect = (PRECT) lParam; */
+ RECT rect;
+ /* printf("WM_SIZING: nc-area: %i,%i\n",prect->right-prect->left,prect->bottom-prect->top); */
+ /* Get client area, the rect in lParam is including non-client area. */
+ fghGetClientArea(&rect,window,FALSE);
+
+ /* We'll get a WM_SIZE as well, but as state has
+ * already been updated here, the fghOnReshapeNotify
+ * in the handler for that message doesn't do anything.
+ */
+ fghOnReshapeNotify(window, rect.right-rect.left, rect.bottom-rect.top, GL_FALSE);
+
+ /* Now directly call the drawing function to update
+ * window and window's childs.
+ * This mimics the WM_PAINT messages that are received during
+ * resizing. Note that we don't have a WM_MOVING handler
+ * as move-dragging doesn't generate WM_MOVE or WM_PAINT
+ * messages until the mouse is released.
+ */
+ fghRedrawWindowAndChildren(window);
+ }
+
+ /* according to docs, should return TRUE */
+ lRet = TRUE;
+ break;
+ case WM_MOVE:
+ {
/* Check window is minimized, we don't want to call the position callback when the user or glutIconifyWindow minimized the window */
if (!IsIconic(window->Window.Handle))
{
- /* Get top-left of non-client area of window, matching coordinates of
+ RECT windowRect;
+
+ /* lParam contains coordinates of top-left of client area.
+ * Get top-left of non-client area of window, matching coordinates of
* glutInitPosition and glutPositionWindow, but not those of
* glutGet(GLUT_WINDOW_X) and glutGet(GLUT_WINDOW_Y), which return
* top-left of client area.
windowRect.top = topleft.y;
}
- INVOKE_WCB( *window, Position, ( windowRect.left, windowRect.top ) );
- fgSetWindow(saved_window);
+ /* Update state and call callback, if there was a change */
+ fghOnPositionNotify(window, windowRect.left, windowRect.top, GL_FALSE);
}
}
/* printf("WM_SHOWWINDOW, shown? %i, source: %i\n",wParam,lParam); */
if (wParam)
{
- fghUpdateWindowStatus(window, GL_TRUE);
+ fghPlatformOnWindowStatusNotify(window, GL_TRUE, GL_FALSE);
window->State.Redisplay = GL_TRUE;
}
else
{
- fghUpdateWindowStatus(window, GL_FALSE);
+ fghPlatformOnWindowStatusNotify(window, GL_FALSE, GL_FALSE);
window->State.Redisplay = GL_FALSE;
}
break;
case WM_PAINT:
{
RECT rect;
-
+
+ /* As per docs, upon receiving WM_PAINT, first check if the update region is not empty before you call BeginPaint */
if (GetUpdateRect(hWnd,&rect,FALSE))
{
- /* As per docs, upon receiving WM_PAINT, first check if the update region is not empty before you call BeginPaint */
+ /* Dummy begin/end paint to validate rect that needs
+ * redrawing, then signal that a redisplay is needed.
+ * This allows us full control about when we do any
+ * redrawing, and is the same as what original GLUT
+ * does.
+ */
PAINTSTRUCT ps;
-
- /* Turn on the visibility in case it was turned off somehow */
- window->State.Visible = GL_TRUE;
-
- InvalidateRect( hWnd, NULL, GL_FALSE );
BeginPaint( hWnd, &ps );
- fghRedrawWindow( window );
EndPaint( hWnd, &ps );
+
+ window->State.Redisplay = GL_TRUE;
}
lRet = 0; /* As per docs, should return 0 */
}
return lRet;
}
+
+
+/* Step through the work list */
+void fgPlatformProcessWork(SFG_Window *window)
+{
+ unsigned int workMask = window->State.WorkMask;
+ /* Now clear it so that any callback generated by the actions below can set work again */
+ window->State.WorkMask = 0;
+
+ /* This is before the first display callback: call a few callbacks to inform user of window size, position, etc
+ * we know this is before the first display callback of a window as for all windows GLUT_INIT_WORK is set when
+ * they are opened, and work is done before displaying in the mainloop.
+ */
+ if (workMask & GLUT_INIT_WORK)
+ {
+ RECT windowRect;
+
+ /* Notify windowStatus/visibility */
+ fghPlatformOnWindowStatusNotify(window, window->State.Visible, GL_TRUE);
+
+ /* get and notify window's position */
+ GetWindowRect(window->Window.Handle,&windowRect);
+ fghOnPositionNotify(window, windowRect.left, windowRect.top, GL_TRUE);
+
+ /* get and notify window's size */
+ GetClientRect(window->Window.Handle,&windowRect);
+ fghOnReshapeNotify(window, windowRect.right-windowRect.left, windowRect.bottom-windowRect.top, GL_TRUE);
+
+ /* Call init context callback */
+ INVOKE_WCB( *window, InitContext, ());
+
+ /* Lastly, check if we have a display callback, error out if not
+ * This is the right place to do it, as the redisplay will be
+ * next right after we exit this function, so there is no more
+ * opportunity for the user to register a callback for this window.
+ */
+ if (!FETCH_WCB(*window, Display))
+ fgError ( "ERROR: No display callback registered for window %d\n", window->ID );
+ }
+
+ /* On windows we can position, resize and change z order at the same time */
+ if (workMask & (GLUT_POSITION_WORK|GLUT_SIZE_WORK|GLUT_ZORDER_WORK|GLUT_FULL_SCREEN_WORK))
+ {
+ UINT flags = SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING | SWP_NOSIZE | SWP_NOZORDER;
+ HWND insertAfter = HWND_TOP;
+ RECT clientRect;
+
+#if !defined(_WIN32_WCE) /* FIXME: what about WinCE */
+ if (workMask & GLUT_FULL_SCREEN_WORK)
+ {
+ /* This asks us to toggle fullscreen mode */
+ flags |= SWP_FRAMECHANGED;
+
+ if (window->State.IsFullscreen)
+ {
+ /* If we are fullscreen, resize the current window back to its original size */
+ /* printf("OldRect %i,%i to %i,%i\n",window->State.pWState.OldRect.left,window->State.pWState.OldRect.top,window->State.pWState.OldRect.right,window->State.pWState.OldRect.bottom); */
+
+ /* restore style of window before making it fullscreen */
+ SetWindowLong(window->Window.Handle, GWL_STYLE, window->State.pWState.OldStyle);
+ SetWindowLong(window->Window.Handle, GWL_EXSTYLE, window->State.pWState.OldStyleEx);
+
+ /* Then set up resize/reposition, unless user already queued up reshape/position work */
+ if (!(workMask & GLUT_POSITION_WORK))
+ {
+ workMask |= GLUT_POSITION_WORK;
+ window->State.DesiredXpos = window->State.pWState.OldRect.left;
+ window->State.DesiredYpos = window->State.pWState.OldRect.top;
+ }
+ if (!(workMask & GLUT_SIZE_WORK))
+ {
+ workMask |= GLUT_SIZE_WORK;
+ window->State.DesiredWidth = window->State.pWState.OldRect.right - window->State.pWState.OldRect.left;
+ window->State.DesiredHeight = window->State.pWState.OldRect.bottom - window->State.pWState.OldRect.top;
+ }
+
+ /* We'll finish off the fullscreen operation below after the other GLUT_POSITION_WORK|GLUT_SIZE_WORK|GLUT_ZORDER_WORK */
+ }
+ else
+ {
+ /* we are currently not fullscreen, go to fullscreen:
+ * remove window decoration and then maximize
+ */
+ RECT rect;
+ HMONITOR hMonitor;
+ MONITORINFO mi;
+
+ /* save current window rect, style, exstyle and maximized state */
+ window->State.pWState.OldMaximized = !!IsZoomed(window->Window.Handle);
+ if (window->State.pWState.OldMaximized)
+ /* We force the window into restored mode before going
+ * fullscreen because Windows doesn't seem to hide the
+ * taskbar if the window is in the maximized state.
+ */
+ SendMessage(window->Window.Handle, WM_SYSCOMMAND, SC_RESTORE, 0);
+
+ fghGetClientArea( &window->State.pWState.OldRect, window, GL_TRUE );
+ window->State.pWState.OldStyle = GetWindowLong(window->Window.Handle, GWL_STYLE);
+ window->State.pWState.OldStyleEx = GetWindowLong(window->Window.Handle, GWL_EXSTYLE);
+
+ /* remove decorations from style */
+ SetWindowLong(window->Window.Handle, GWL_STYLE,
+ window->State.pWState.OldStyle & ~(WS_CAPTION | WS_THICKFRAME));
+ SetWindowLong(window->Window.Handle, GWL_EXSTYLE,
+ window->State.pWState.OldStyleEx & ~(WS_EX_DLGMODALFRAME |
+ WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE | WS_EX_STATICEDGE));
+
+ /* For fullscreen mode, find the monitor that is covered the most
+ * by the window and get its rect as the resize target.
+ */
+ GetWindowRect(window->Window.Handle, &rect);
+ hMonitor= MonitorFromRect(&rect, MONITOR_DEFAULTTONEAREST);
+ mi.cbSize = sizeof(mi);
+ GetMonitorInfo(hMonitor, &mi);
+ rect = mi.rcMonitor;
+
+ /* then setup window resize, overwriting other work queued on the window */
+ window->State.WorkMask |= GLUT_POSITION_WORK | GLUT_SIZE_WORK;
+ window->State.WorkMask &= ~GLUT_ZORDER_WORK;
+ window->State.DesiredXpos = rect.left;
+ window->State.DesiredYpos = rect.top;
+ window->State.DesiredWidth = rect.right - rect.left;
+ window->State.DesiredHeight = rect.bottom - rect.top;
+ }
+ }
+#endif /*!defined(_WIN32_WCE) */
+
+ /* Now deal with normal position, reshape and z order requests (some might have been set when handling GLUT_FULLSCREEN_WORK above */
+ {
+ /* get rect describing window's current position and size,
+ * in screen coordinates and in FreeGLUT format
+ * (size (right-left, bottom-top) is client area size, top and left
+ * are outside of window including decorations).
+ */
+ fghGetClientArea( &clientRect, window, TRUE );
+
+ if (workMask & GLUT_POSITION_WORK)
+ {
+ flags &= ~SWP_NOMOVE;
+
+ /* Move rect so that top-left is at requested position */
+ /* This also automatically makes sure that child window requested coordinates are relative
+ * to top-left of parent's client area (needed input for SetWindowPos on child windows),
+ * so no need to further correct rect for child windows below (childs don't have decorations either).
+ */
+ OffsetRect(&clientRect,window->State.DesiredXpos-clientRect.left,window->State.DesiredYpos-clientRect.top);
+ }
+ if (workMask & GLUT_SIZE_WORK)
+ {
+ flags &= ~SWP_NOSIZE;
+
+ /* 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.
+ */
+
+ /* Set new size of window, WxH specify client area */
+ clientRect.right = clientRect.left + window->State.DesiredWidth;
+ clientRect.bottom = clientRect.top + window->State.DesiredHeight;
+ }
+ if (workMask & GLUT_ZORDER_WORK)
+ {
+ flags &= ~SWP_NOZORDER;
+
+ /* Could change this to push it down or up one window at a time with some
+ * more code using GetWindow with GW_HWNDPREV and GW_HWNDNEXT.
+ * What would be consistent with X11? Win32 GLUT does what we do here...
+ */
+ if (window->State.DesiredZOrder < 0)
+ insertAfter = HWND_BOTTOM;
+ }
+ }
+
+ /* Adjust for window decorations
+ * Child windows don't have decoration, so no need to correct
+ */
+ if (!window->Parent)
+ /* get the window rect from this to feed to SetWindowPos, correct for window decorations */
+ fghComputeWindowRectFromClientArea_QueryWindow(&clientRect,window,TRUE);
+
+ /* Do the requested positioning, moving, and z order push/pop. */
+ SetWindowPos( window->Window.Handle,
+ insertAfter,
+ clientRect.left, clientRect.top,
+ clientRect.right - clientRect.left,
+ clientRect.bottom- clientRect.top,
+ flags
+ );
+
+ /* Finish off the fullscreen operation we were doing, if any */
+ if (workMask & GLUT_FULL_SCREEN_WORK)
+ {
+ if (window->State.IsFullscreen)
+ {
+ /* leaving fullscreen, restore maximized state, if any */
+ if (window->State.pWState.OldMaximized)
+ SendMessage(window->Window.Handle, WM_SYSCOMMAND, SC_MAXIMIZE, 0);
+
+ window->State.IsFullscreen = GL_FALSE;
+ }
+ else
+ window->State.IsFullscreen = GL_TRUE;
+ }
+ }
+
+ if (workMask & GLUT_VISIBILITY_WORK)
+ {
+ /* Visibility status of window gets updated in the WM_SHOWWINDOW and WM_SIZE handlers */
+ int cmdShow = 0;
+ SFG_Window *win = window;
+ switch (window->State.DesiredVisibility)
+ {
+ case DesireHiddenState:
+ cmdShow = SW_HIDE;
+ break;
+ case DesireIconicState:
+ cmdShow = SW_MINIMIZE;
+ /* Call on top-level window */
+ while (win->Parent)
+ win = win->Parent;
+ break;
+ case DesireNormalState:
+ cmdShow = SW_SHOW;
+ break;
+ }
+
+ ShowWindow( win->Window.Handle, cmdShow );
+ }
+}
\ No newline at end of file
projects / freeglut / blobdiff