wine/windows/dce.c
Alexandre Julliard e2bfa4c722 Release 960516
Thu May 16 13:35:31 1996  Alexandre Julliard  <julliard@lrc.epfl.ch>

	* [*/*.c]
	Renamed RECT, POINT and SIZE structures to RECT16, POINT16 and
	SIZE16. Implemented Win32 version of most functions that take
	these types as parameters.

	* [configure]
	Patched autoconf to attempt to correctly detect -lnsl and
	-lsocket. Please check this out.
	
	* [controls/button.c]
	Added support for Win32 BM_* messages.

	* [controls/menu.c]
	Avoid sending extra WM_MENUSELECT messages. This avoids crashes
	with Excel.

	* [memory.heap.c] [include/heap.h]
	Added support for SEGPTRs in Win32 heaps. Added a few macros to
 	make using SEGPTRs easier. They are a bit slower than MAKE_SEGPTR,
 	but they work with Win32.

	* [memory/atom.c]
	Implemented Win32 atom functions.

	* [memory/local.c]
	Fixed LocalReAlloc() changes to avoid copying the whole block twice.

	* [win32/memory.c]
	Use /dev/zero instead of MAP_ANON for VirtualAlloc().

	* [windows/class.c]
	Properly implemented the Win32 class functions.

	* [windows/winproc.c] (New file)
	New file handling the message translation between Win16 and Win32.

Mon May 13 18:00:00 1996 Alex Korobka <alex@phm30.pharm.sunysb.edu>

	* [windows/mdi.c] [windows/menu.c]
	Improved WM_MDICREATE and WM_MDICASCADE handling.

	* [windows/event.c] [objects/bitblt.c]
	Handle GraphicsExpose event for BitBlt from screen to screen.

	* [windows/event.c] [windows/win.c] [windows/nonclient.c]
	Bunch of fixes for problems with -managed.

	* [windows/win.c] [windows/winpos.c]
	Changed conditions for WM_SIZE, WM_MOVE, and WM_GETMINMAXINFO
	in CreateWindow.

	* [windows/win.c] [windows/queue.c] [misc/user.c]
	Do not send WM_PARENTNOTIFY when in AppExit and call WH_SHELL
	on window creation/destruction.

	* [objects/palette.c]
	Crude RealizePalette(). At least something is visible in LviewPro.

Sun May 12 02:05:00 1996  Thomas Sandford <t.d.g.sandford@prds-grn.demon.co.uk>

	* [if1632/gdi32.spec]
	Added Rectangle (use win16 version).

	* [if1632/kernel32.spec]
	Added GetWindowsDirectoryA (use win16 GetWindowsDirectory).

	* [if1632/user32.spec]
	Added GetSubMenu, MoveWindow, SetScrollPos, SetScrollRange (use win16
	versions).
	Added SetWindowsHookExA (empty stub for now).

	* [include/handle32.h]
	Changed #include <malloc.h> to #include <stdlib.h> to prevent
	hate message from FreeBSD compiler.

	* [win32/newfns.c]
	Added new function SetWindowsHookEx32A (empty stub for now).

	* [win32/user32.c]
	Removed redundant debugging printf statement.

Sun May 12 01:24:57 1996  Huw D. M. Davies <h.davies1@physics.oxford.ac.uk>

	* [memory/local.c]
	Avoid creating adjacent free blocks.
	Free the block in LocalReAlloc() before allocating a new one.
	Fixed LocalReAlloc() for discarded blocks.
	
Fri May 10 23:05:12 1996  Jukka Iivonen <iivonen@cc.helsinki.fi>

	* [resources/sysres_Fi.rc]
	ChooseFont and ChooseColor dialogs updated.

Fri May 10 17:19:33 1996  Marcus Meissner <msmeissn@cip.informatik.uni-erlangen.de>

	* [files/drive.c,if1632/kernel.spec]
	GetCurrentDirectory(),SetCurrentDirectory() implemented.

	* [if1632/advapi32.spec] [if1632/kernel.spec] [if1632/shell.spec]
	  [include/windows.h] [include/winreg.h] [loader/main.c]
	  [misc/main.c] [misc/shell.c] [misc/registry.c]
	Registry fixes:
	- loads win95 registry databases,
	- save only updated keys on default,
	- now adhers to the new function naming standard,
	- minor cleanups.

Tue May 7 22:36:13 1996  Albrecht Kleine  <kleine@ak.sax.de>

	* [combo.c]
	Added WM_COMMAND-handling for interaction between EDIT and COMBOLBOX
        and synchronized mine with Greg Kreider's works.

	* [commdlg.c]
	Bugfix in ChooseFont: font size handling.
1996-05-16 18:21:06 +00:00

439 lines
12 KiB
C

/*
* USER DCE functions
*
* Copyright 1993 Alexandre Julliard
*
static char Copyright[] = "Copyright Alexandre Julliard, 1993";
*/
#include "dce.h"
#include "class.h"
#include "win.h"
#include "gdi.h"
#include "user.h"
#include "sysmetrics.h"
#include "stddebug.h"
/* #define DEBUG_DC */
#include "debug.h"
#define NB_DCE 5 /* Number of DCEs created at startup */
static HANDLE firstDCE = 0;
static HDC defaultDCstate = 0;
/***********************************************************************
* DCE_AllocDCE
*
* Allocate a new DCE.
*/
HANDLE DCE_AllocDCE( DCE_TYPE type )
{
DCE * dce;
HANDLE handle = USER_HEAP_ALLOC( sizeof(DCE) );
if (!handle) return 0;
dce = (DCE *) USER_HEAP_LIN_ADDR( handle );
if (!(dce->hdc = CreateDC( "DISPLAY", NULL, NULL, NULL )))
{
USER_HEAP_FREE( handle );
return 0;
}
dce->hwndCurrent = 0;
dce->type = type;
dce->inUse = (type != DCE_CACHE_DC);
dce->xOrigin = 0;
dce->yOrigin = 0;
dce->hNext = firstDCE;
firstDCE = handle;
return handle;
}
/***********************************************************************
* DCE_FreeDCE
*/
void DCE_FreeDCE( HANDLE hdce )
{
DCE * dce;
HANDLE *handle = &firstDCE;
if (!(dce = (DCE *) USER_HEAP_LIN_ADDR( hdce ))) return;
while (*handle && (*handle != hdce))
{
DCE * prev = (DCE *) USER_HEAP_LIN_ADDR( *handle );
handle = &prev->hNext;
}
if (*handle == hdce) *handle = dce->hNext;
DeleteDC( dce->hdc );
USER_HEAP_FREE( hdce );
}
/***********************************************************************
* DCE_Init
*/
void DCE_Init()
{
int i;
HANDLE handle;
DCE * dce;
for (i = 0; i < NB_DCE; i++)
{
if (!(handle = DCE_AllocDCE( DCE_CACHE_DC ))) return;
dce = (DCE *) USER_HEAP_LIN_ADDR( handle );
if (!defaultDCstate) defaultDCstate = GetDCState( dce->hdc );
}
}
/***********************************************************************
* DCE_GetVisRect
*
* Calc the visible rectangle of a window, i.e. the client or
* window area clipped by the client area of all ancestors.
* Return FALSE if the visible region is empty.
*/
static BOOL DCE_GetVisRect( WND *wndPtr, BOOL clientArea, RECT16 *lprect )
{
int xoffset, yoffset;
*lprect = clientArea ? wndPtr->rectClient : wndPtr->rectWindow;
xoffset = lprect->left;
yoffset = lprect->top;
if (!(wndPtr->dwStyle & WS_VISIBLE) || (wndPtr->flags & WIN_NO_REDRAW))
{
SetRectEmpty16( lprect ); /* Clip everything */
return FALSE;
}
while (wndPtr->parent)
{
wndPtr = wndPtr->parent;
if (!(wndPtr->dwStyle & WS_VISIBLE) ||
(wndPtr->flags & WIN_NO_REDRAW) ||
(wndPtr->dwStyle & WS_ICONIC))
{
SetRectEmpty16( lprect ); /* Clip everything */
return FALSE;
}
xoffset += wndPtr->rectClient.left;
yoffset += wndPtr->rectClient.top;
OffsetRect16( lprect, wndPtr->rectClient.left,
wndPtr->rectClient.top );
/* Warning!! we assume that IntersectRect() handles the case */
/* where the destination is the same as one of the sources. */
if (!IntersectRect16( lprect, lprect, &wndPtr->rectClient ))
return FALSE; /* Visible rectangle is empty */
}
OffsetRect16( lprect, -xoffset, -yoffset );
return TRUE;
}
/***********************************************************************
* DCE_ClipWindows
*
* Go through the linked list of windows from hwndStart to hwndEnd,
* removing from the given region the rectangle of each window offset
* by a given amount. The new region is returned, and the original one
* is destroyed. Used to implement DCX_CLIPSIBLINGS and
* DCX_CLIPCHILDREN styles.
*/
static HRGN DCE_ClipWindows( WND *pWndStart, WND *pWndEnd,
HRGN hrgn, int xoffset, int yoffset )
{
HRGN hrgnNew;
if (!pWndStart) return hrgn;
if (!(hrgnNew = CreateRectRgn( 0, 0, 0, 0 )))
{
DeleteObject( hrgn );
return 0;
}
for (; pWndStart != pWndEnd; pWndStart = pWndStart->next)
{
if (!(pWndStart->dwStyle & WS_VISIBLE)) continue;
SetRectRgn( hrgnNew, pWndStart->rectWindow.left + xoffset,
pWndStart->rectWindow.top + yoffset,
pWndStart->rectWindow.right + xoffset,
pWndStart->rectWindow.bottom + yoffset );
if (!CombineRgn( hrgn, hrgn, hrgnNew, RGN_DIFF )) break;
}
DeleteObject( hrgnNew );
if (pWndStart != pWndEnd) /* something went wrong */
{
DeleteObject( hrgn );
return 0;
}
return hrgn;
}
/***********************************************************************
* DCE_GetVisRgn
*
* Return the visible region of a window, i.e. the client or window area
* clipped by the client area of all ancestors, and then optionally
* by siblings and children.
*/
HRGN DCE_GetVisRgn( HWND hwnd, WORD flags )
{
RECT16 rect;
HRGN hrgn;
int xoffset, yoffset;
WND *wndPtr = WIN_FindWndPtr( hwnd );
/* Get visible rectangle and create a region with it */
if (!DCE_GetVisRect( wndPtr, !(flags & DCX_WINDOW), &rect ))
{
return CreateRectRgn( 0, 0, 0, 0 ); /* Visible region is empty */
}
if (!(hrgn = CreateRectRgnIndirect16( &rect ))) return 0;
/* Clip all children from the visible region */
if (flags & DCX_CLIPCHILDREN)
{
if (flags & DCX_WINDOW)
{
xoffset = wndPtr->rectClient.left - wndPtr->rectWindow.left;
yoffset = wndPtr->rectClient.top - wndPtr->rectWindow.top;
}
else xoffset = yoffset = 0;
hrgn = DCE_ClipWindows( wndPtr->child, NULL, hrgn, xoffset, yoffset );
if (!hrgn) return 0;
}
/* Clip siblings placed above this window */
if (flags & DCX_WINDOW)
{
xoffset = -wndPtr->rectWindow.left;
yoffset = -wndPtr->rectWindow.top;
}
else
{
xoffset = -wndPtr->rectClient.left;
yoffset = -wndPtr->rectClient.top;
}
if (flags & DCX_CLIPSIBLINGS)
{
hrgn = DCE_ClipWindows( wndPtr->parent ? wndPtr->parent->child : NULL,
wndPtr, hrgn, xoffset, yoffset );
if (!hrgn) return 0;
}
/* Clip siblings of all ancestors that have the WS_CLIPSIBLINGS style */
while (wndPtr->dwStyle & WS_CHILD)
{
wndPtr = wndPtr->parent;
xoffset -= wndPtr->rectClient.left;
yoffset -= wndPtr->rectClient.top;
hrgn = DCE_ClipWindows( wndPtr->parent->child, wndPtr,
hrgn, xoffset, yoffset );
if (!hrgn) return 0;
}
return hrgn;
}
/***********************************************************************
* DCE_SetDrawable
*
* Set the drawable, origin and dimensions for the DC associated to
* a given window.
*/
static void DCE_SetDrawable( WND *wndPtr, DC *dc, WORD flags )
{
if (!wndPtr) /* Get a DC for the whole screen */
{
dc->w.DCOrgX = 0;
dc->w.DCOrgY = 0;
dc->u.x.drawable = rootWindow;
XSetSubwindowMode( display, dc->u.x.gc, IncludeInferiors );
}
else
{
if (flags & DCX_WINDOW)
{
dc->w.DCOrgX = wndPtr->rectWindow.left;
dc->w.DCOrgY = wndPtr->rectWindow.top;
}
else
{
dc->w.DCOrgX = wndPtr->rectClient.left;
dc->w.DCOrgY = wndPtr->rectClient.top;
}
while (!wndPtr->window)
{
wndPtr = wndPtr->parent;
dc->w.DCOrgX += wndPtr->rectClient.left;
dc->w.DCOrgY += wndPtr->rectClient.top;
}
dc->w.DCOrgX -= wndPtr->rectWindow.left;
dc->w.DCOrgY -= wndPtr->rectWindow.top;
dc->u.x.drawable = wndPtr->window;
}
}
/***********************************************************************
* GetDCEx (USER.359)
*/
/* Unimplemented flags: DCX_LOCKWINDOWUPDATE
*/
HDC GetDCEx( HWND hwnd, HRGN hrgnClip, DWORD flags )
{
HANDLE hdce;
HRGN hrgnVisible;
HDC hdc = 0;
DCE * dce;
DC * dc;
WND * wndPtr;
if (hwnd)
{
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
}
else wndPtr = NULL;
if (flags & DCX_USESTYLE)
{
/* Set the flags according to the window style. */
/* Not sure if this is the real meaning of the DCX_USESTYLE flag... */
flags &= ~(DCX_CACHE | DCX_CLIPCHILDREN |
DCX_CLIPSIBLINGS | DCX_PARENTCLIP);
if (wndPtr)
{
if (!(wndPtr->class->style & (CS_OWNDC | CS_CLASSDC)))
flags |= DCX_CACHE;
if (wndPtr->class->style & CS_PARENTDC) flags |= DCX_PARENTCLIP;
if (wndPtr->dwStyle & WS_CLIPCHILDREN) flags |= DCX_CLIPCHILDREN;
if (wndPtr->dwStyle & WS_CLIPSIBLINGS) flags |= DCX_CLIPSIBLINGS;
}
else flags |= DCX_CACHE;
}
/* Can only use PARENTCLIP on child windows */
if (!wndPtr || !(wndPtr->dwStyle & WS_CHILD)) flags &= ~DCX_PARENTCLIP;
/* Whole window DC implies using cache DC and not clipping children */
if (flags & DCX_WINDOW) flags = (flags & ~DCX_CLIPCHILDREN) | DCX_CACHE;
if (flags & DCX_CACHE)
{
for (hdce = firstDCE; (hdce); hdce = dce->hNext)
{
if (!(dce = (DCE *) USER_HEAP_LIN_ADDR( hdce ))) return 0;
if ((dce->type == DCE_CACHE_DC) && (!dce->inUse)) break;
}
}
else hdce = wndPtr->hdce;
if (!hdce) return 0;
dce = (DCE *) USER_HEAP_LIN_ADDR( hdce );
dce->hwndCurrent = hwnd;
dce->inUse = TRUE;
hdc = dce->hdc;
/* Initialize DC */
if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
DCE_SetDrawable( wndPtr, dc, flags );
if (hwnd)
{
if (flags & DCX_PARENTCLIP) /* Get a VisRgn for the parent */
{
WND *parentPtr = wndPtr->parent;
DWORD newflags = flags & ~(DCX_CLIPSIBLINGS | DCX_CLIPCHILDREN |
DCX_WINDOW);
if (parentPtr->dwStyle & WS_CLIPSIBLINGS)
newflags |= DCX_CLIPSIBLINGS;
hrgnVisible = DCE_GetVisRgn( parentPtr->hwndSelf, newflags );
if (flags & DCX_WINDOW)
OffsetRgn( hrgnVisible, -wndPtr->rectWindow.left,
-wndPtr->rectWindow.top );
else OffsetRgn( hrgnVisible, -wndPtr->rectClient.left,
-wndPtr->rectClient.top );
}
else hrgnVisible = DCE_GetVisRgn( hwnd, flags );
}
else /* Get a VisRgn for the whole screen */
{
hrgnVisible = CreateRectRgn( 0, 0, SYSMETRICS_CXSCREEN,
SYSMETRICS_CYSCREEN);
}
/* Intersect VisRgn with the given region */
if ((flags & DCX_INTERSECTRGN) || (flags & DCX_EXCLUDERGN))
{
CombineRgn( hrgnVisible, hrgnVisible, hrgnClip,
(flags & DCX_INTERSECTRGN) ? RGN_AND : RGN_DIFF );
}
SelectVisRgn( hdc, hrgnVisible );
DeleteObject( hrgnVisible );
dprintf_dc(stddeb, "GetDCEx(%04x,%04x,0x%lx): returning %04x\n",
hwnd, hrgnClip, flags, hdc);
return hdc;
}
/***********************************************************************
* GetDC (USER.66)
*/
HDC GetDC( HWND hwnd )
{
return GetDCEx( hwnd, 0, DCX_USESTYLE );
}
/***********************************************************************
* GetWindowDC (USER.67)
*/
HDC GetWindowDC( HWND hwnd )
{
int flags = DCX_CACHE | DCX_WINDOW;
if (hwnd)
{
WND * wndPtr;
if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return 0;
/* if (wndPtr->dwStyle & WS_CLIPCHILDREN) flags |= DCX_CLIPCHILDREN; */
if (wndPtr->dwStyle & WS_CLIPSIBLINGS) flags |= DCX_CLIPSIBLINGS;
}
return GetDCEx( hwnd, 0, flags );
}
/***********************************************************************
* ReleaseDC (USER.68)
*/
int ReleaseDC( HWND hwnd, HDC hdc )
{
HANDLE hdce;
DCE * dce = NULL;
dprintf_dc(stddeb, "ReleaseDC: %04x %04x\n", hwnd, hdc );
for (hdce = firstDCE; (hdce); hdce = dce->hNext)
{
if (!(dce = (DCE *) USER_HEAP_LIN_ADDR( hdce ))) return 0;
if (dce->inUse && (dce->hdc == hdc)) break;
}
if (!hdce) return 0;
if (dce->type == DCE_CACHE_DC)
{
SetDCState( dce->hdc, defaultDCstate );
dce->inUse = FALSE;
}
return 1;
}