Leaked source code of windows server 2003
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/****************************** Module Header ******************************\
* Module Name: caption.c (aka wmcap.c)
*
* Copyright (c) 1985 - 1999, Microsoft Corporation
*
* History:
* 28-Oct-1990 MikeHar Ported functions from Win 3.0 sources.
* 01-Feb-1991 MikeKe Added Revalidation code (None)
* 03-Jan-1992 IanJa Neutralized (ANSI/wide-character)
\***************************************************************************/
#include "precomp.h"
#pragma hdrstop
#define MIN 0x01
#define MAX 0x02
#define NOMIN 0x04
#define NOMAX 0x08
#define NOCLOSE 0x10
#define SMCAP 0x20
#define NOSIZE (NOMIN | NOMAX)
/***************************************************************************\
* xxxCalcCaptionButton
*
* This calculates the location of the caption button.
\***************************************************************************/
DWORD xxxCalcCaptionButton(
PWND pwnd,
int iButton,
LPWORD pcmd,
LPRECT prcBtn,
LPWORD pbm)
{
int x, y, cBorders, cxS, cyS;
CheckLock(pwnd);
*pcmd = 0;
if (TestWF(pwnd, WFMINIMIZED)) {
x = -SYSMET(CXFIXEDFRAME);
y = -SYSMET(CYFIXEDFRAME);
} else {
cBorders = GetWindowBorders(pwnd->style, pwnd->ExStyle, TRUE, FALSE);
x = -cBorders * SYSMET(CXBORDER);
y = -cBorders * SYSMET(CYBORDER);
}
CopyInflateRect(prcBtn, &pwnd->rcWindow, x, y);
x = -pwnd->rcWindow.left;
y = -pwnd->rcWindow.top;
/*
* Get real caption area: Subtract final border underneath caption that
* separates it from everything else.
*/
if (TestWF(pwnd, WEFTOOLWINDOW)) {
cxS = SYSMET(CXSMSIZE);
cyS = SYSMET(CYSMSIZE);
} else {
cxS = SYSMET(CXSIZE);
cyS = SYSMET(CYSIZE);
}
if (iButton == INDEX_TITLEBAR_CLOSEBUTTON) {
if (xxxMNCanClose(pwnd)) {
*pbm = TestWF(pwnd, WEFTOOLWINDOW) ? OBI_CLOSE_PAL : OBI_CLOSE;
*pcmd = SC_CLOSE;
}
} else if (iButton == INDEX_TITLEBAR_MINBUTTON) {
/*
* Reduce button isn't last button, so shift left by one button
*/
if (TestWF(pwnd, WFMINBOX)) {
prcBtn->right -= cxS * 2;
x += SYSMET(CXEDGE);
if (TestWF(pwnd, WFMINIMIZED)) {
*pbm = OBI_RESTORE;
*pcmd = SC_RESTORE;
} else {
*pbm = OBI_REDUCE;
*pcmd = SC_MINIMIZE;
}
}
} else if (iButton == INDEX_TITLEBAR_MAXBUTTON) {
if (TestWF(pwnd, WFMAXBOX)) {
prcBtn->right -= cxS;
if (TestWF(pwnd, WFMAXIMIZED)) {
*pbm = OBI_RESTORE;
*pcmd = SC_RESTORE;
} else {
*pbm = OBI_ZOOM;
*pcmd = SC_MAXIMIZE;
}
}
} else {
if (TestWF(pwnd, WEFCONTEXTHELP)) {
prcBtn->right -= cxS;
*pbm = OBI_HELP;
*pcmd = SC_CONTEXTHELP;
}
}
if (*pcmd) {
prcBtn->bottom = prcBtn->top + cyS;
prcBtn->left = prcBtn->right - cxS;
/*
* Adjust 'x' and 'y' to window coordinates
*/
x += prcBtn->left;
y += prcBtn->top + SYSMET(CYEDGE);
/*
* rcBtn (screen coords hit rect) has a one-border tolerance all
* around
*/
InflateRect(prcBtn, SYSMET(CXBORDER), SYSMET(CYBORDER));
if (TestWF(pwnd, WEFLAYOUTRTL)) {
cxS = prcBtn->right - prcBtn->left;
prcBtn->right = pwnd->rcWindow.right - (prcBtn->left - pwnd->rcWindow.left);
prcBtn->left = prcBtn->right - cxS;
}
}
return (DWORD)MAKELONG(x, y);
}
/***************************************************************************\
* xxxTrackCaptionButton
*
* Handles clicking and dragging on caption buttons. We draw the button
* depressed then track the mouse. If the user moves outside of the button,
* undepress it. When the mouse button is finally released, we return whether
* the mouse was inside the button or not. I.E., whether the button was
* clicked.
\***************************************************************************/
WORD xxxTrackCaptionButton(
PWND pwnd,
UINT hit)
{
WORD cmd;
MSG msg;
HDC hdc;
WORD bm;
int x;
int y;
WORD wState;
WORD wNewState;
BOOL fMouseUp = FALSE;
RECT rcBtn;
DWORD dwWhere;
int iButton;
WORD wf;
UserAssert(IsWinEventNotifyDeferredOK());
CheckLock(pwnd);
/*
* Set up iButton for this and future STATECHANGE events
*/
switch (hit) {
case HTCLOSE:
iButton = INDEX_TITLEBAR_CLOSEBUTTON;
wf = WFCLOSEBUTTONDOWN;
break;
case HTREDUCE:
iButton = INDEX_TITLEBAR_MINBUTTON;
wf = WFREDUCEBUTTONDOWN;
break;
case HTZOOM:
iButton = INDEX_TITLEBAR_MAXBUTTON;
wf = WFZOOMBUTTONDOWN;
break;
case HTHELP:
iButton = INDEX_TITLEBAR_HELPBUTTON;
wf = WFHELPBUTTONDOWN;
break;
default:
UserAssert(FALSE);
}
dwWhere = xxxCalcCaptionButton(pwnd, iButton, &cmd, &rcBtn, &bm);
x = GET_X_LPARAM(dwWhere);
y = GET_Y_LPARAM(dwWhere);
if (cmd) {
/*
* Draw the image in its depressed state.
*/
hdc = _GetDCEx(pwnd, NULL, DCX_WINDOW | DCX_USESTYLE);
BitBltSysBmp(hdc, x, y, bm + DOBI_PUSHED);
_ReleaseDC(hdc);
wState = DOBI_PUSHED;
/*
* Notification of button press.
*/
SetWF(pwnd, wf);
xxxWindowEvent(EVENT_OBJECT_STATECHANGE, pwnd, OBJID_TITLEBAR, iButton, 0);
} else {
iButton = 0;
}
xxxSetCapture(pwnd);
while (!fMouseUp) {
if (xxxPeekMessage(&msg, NULL, WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE)) {
if (msg.message == WM_LBUTTONUP) {
xxxReleaseCapture();
fMouseUp = TRUE;
} else if ((msg.message == WM_MOUSEMOVE) && cmd) {
wNewState = PtInRect(&rcBtn, msg.pt) ? DOBI_PUSHED : DOBI_NORMAL;
if (wState != wNewState) {
wState = wNewState;
hdc = _GetDCEx(pwnd, NULL, DCX_WINDOW | DCX_USESTYLE);
BitBltSysBmp(hdc, x, y, bm + wState);
_ReleaseDC(hdc);
if (wState == DOBI_PUSHED) {
SetWF(pwnd, wf);
} else {
ClrWF(pwnd, wf);
}
xxxWindowEvent(EVENT_OBJECT_STATECHANGE, pwnd, OBJID_TITLEBAR, iButton, 0);
}
}
} else if (!xxxSleepThread(QS_MOUSE, 0, TRUE)) {
break;
}
if (pwnd != PtiCurrent()->pq->spwndCapture) {
/*
* We lost capture. This could have happened during
* the WM_CAPTURECHANGED callback or later if we
* are/were not in the foreground queue.
*/
break;
}
}
if (!cmd) {
return 0;
}
if (wState && (cmd != SC_CONTEXTHELP)) {
hdc = _GetDCEx(pwnd, NULL, DCX_WINDOW | DCX_USESTYLE);
BitBltSysBmp(hdc, x, y, bm);
_ReleaseDC(hdc);
ClrWF(pwnd, wf);
xxxWindowEvent(EVENT_OBJECT_STATECHANGE, pwnd, OBJID_TITLEBAR, iButton, 0);
}
return (fMouseUp && PtInRect(&rcBtn, msg.pt)) ? cmd : 0;
}
/***************************************************************************\
* xxxGetWindowSmIcon
*
* Gets icon to draw in caption of window.
\***************************************************************************/
PCURSOR xxxGetWindowSmIcon(
PWND pwnd,
BOOL fDontSendMsg)
{
PCURSOR pcursor = NULL;
HICON hico = NULL;
PCLS pcls = pwnd->pcls;
CheckLock(pwnd);
/*
* We check per-window stuff first then per-class stuff, preferring a
* real small icon over a stretched big one.
*
* Per-window small icon
* Per-window big icon stretched small
* Per-class small icon
* Per-class big icon stretched small
* WM_QUERYDRAGICON big icon stretched small (for 3.x dudes)
*
* Try window small icon first
* NOTE: The WM_SETICON and WM_GETICON messags are for ISVs only.
*/
if ((hico = (HICON)_GetProp(pwnd, MAKEINTATOM(gpsi->atomIconSmProp), PROPF_INTERNAL)) != NULL) {
if (pcursor = (PCURSOR)HMValidateHandleNoSecure(hico, TYPE_CURSOR)) {
return pcursor;
} else {
RIPMSG1(RIP_WARNING,"GetWindowSmIcon: Invalid small icon handle (0x%p)", hico);
}
}
/*
* Try class small icon next.
*/
pcursor = pcls->spicnSm; {
if (pcursor != NULL)
return pcursor;
}
if (!TestWF(pwnd, WFWIN40COMPAT) &&
(!TestWF(pwnd, WFOLDUI) ||
!TestWF(pwnd, WEFMDICHILD)) &&
!fDontSendMsg) {
ULONG_PTR dwResult;
/*
* A few old apps like Corel don't set their class icon and other
* data until long after we need it. If we send them WM_QUERYDRAGICON,
* they will fault because they don't check the return from GWL to
* get their data. WFOLDUI apps won't ever get a WM_QUERYDRAGICON,
* sorry. Currently the apps with this hack (not for this reason
* necessarily)
* Corel Photo-Paint 5.0
* Myst 2.0
* Visual Baler 3.0
* Quicken
*/
if (xxxSendMessageTimeout(pwnd,
WM_QUERYDRAGICON,
0,
0,
SMTO_NORMAL,
100,
&dwResult)) {
hico = (HICON)dwResult;
}
if (hico) {
hico = xxxCreateWindowSmIcon(pwnd, hico, FALSE);
pcursor = (PCURSOR)HMValidateHandleNoSecure(hico, TYPE_CURSOR);
if (pcursor == NULL) {
hico = NULL;
}
}
}
if (pcursor == NULL) {
pcursor = SYSICO(WINLOGO);
}
return pcursor;
}
/***************************************************************************\
* BltMe4Times
*
* This routine blts out two copies of the specified caption icon. One for an
* active window and one for an inactive window.
\***************************************************************************/
VOID BltMe4Times(
POEMBITMAPINFO pOem,
int cxySlot,
int cxyIcon,
HDC hdcSrc,
PCURSOR pcursor,
UINT flags)
{
RECT rc;
int i;
int j;
BOOL fMask = TRUE;
LONG rop;
HBRUSH hBrush;
hBrush = (flags & DC_INBUTTON) ? SYSHBR(3DHILIGHT) : SYSHBR(ACTIVECAPTION);
for (i = 0; i < 2; i++) {
rop = SRCAND;
rc.left = pOem->x;
rc.top = pOem->y;
rc.right = rc.left + pOem->cx;
rc.bottom = rc.top + pOem->cy;
FillRect(HDCBITS(), &rc, hBrush);
rc.top += (cxySlot - cxyIcon) / 2;
rc.left += SYSMET(CXBORDER) + (cxySlot - cxyIcon) / 2;
for (j = 0; j < 2; j++) {
BltIcon(
HDCBITS(),
rc.left,
rc.top,
cxyIcon,
cxyIcon,
hdcSrc,
pcursor,
fMask ? DI_MASK : DI_IMAGE,
rop);
fMask = !fMask;
rop = SRCINVERT;
}
pOem += DOBI_CAPOFF;
hBrush = (flags & DC_INBUTTON) ? SYSHBR(3DFACE) : SYSHBR(INACTIVECAPTION);
}
}
/***************************************************************************\
* DrawCaptionIcon
*
* In order to speed up the drawing of caption icons a cache is maintained.
* Within the cache, the first entry, 0, is for the tray's depressed caption
* look. Items 1..CCACHEDCAPTIONS are for the actual caption's icons.
\***************************************************************************/
VOID DrawCaptionIcon(
HDC hdc,
LPRECT lprc,
PCURSOR pcursor,
HBRUSH hbrFill,
UINT flags)
{
int i;
int xStart = 0;
int cxySlot;
POEMBITMAPINFO pOem;
RECT rc;
CAPTIONCACHE ccTemp;
/*
* Check the size of the icon to see if it matches the size of the
* cache we created. Most of the time this will match. Also, if
* we are drawing with DC_INBUTTON in 16 colors, don't cache. Also,
* if the icon has an active alpha channel, just blit it directly
* and don't cache!
*/
cxySlot = lprc->bottom - lprc->top;
if ((cxySlot != gpsi->oembmi[OBI_CAPCACHE1].cy) ||
(hbrFill == gpsi->hbrGray) ||
(pcursor->hbmUserAlpha != NULL)) {
rc.left = lprc->left;
rc.top = lprc->top;
rc.right = lprc->left + cxySlot;
rc.bottom = lprc->top + cxySlot;
FillRect(hdc, &rc, hbrFill);
rc.left += SYSMET(CXBORDER) + (cxySlot - SYSMET(CXSMICON)) / 2;
rc.top += (cxySlot - SYSMET(CYSMICON)) / 2;
_DrawIconEx(hdc,
rc.left,
rc.top,
pcursor,
SYSMET(CXSMICON),
SYSMET(CYSMICON),
0,
NULL,
DI_NORMAL);
goto Done;
}
if (flags & DC_INBUTTON) {
/*
* The DC_INBUTTON icons is always slot 0.
*/
i = ((gcachedCaptions[0].spcursor == pcursor) ? 0 : CCACHEDCAPTIONS);
} else {
/*
* Search the cache to see if this cursor is currently cached.
*/
for (i = 1; i < CCACHEDCAPTIONS; i++) {
if (gcachedCaptions[i].spcursor == pcursor) {
break;
}
}
}
if (i >= CCACHEDCAPTIONS) {
/*
* Icon wasn't cached, so try and add it to the cache.
*/
if (flags & DC_INBUTTON) {
/*
* The tray's special DC_INBUTTON style always goes in slot 0.
*/
i = 0;
} else {
/*
* Look for an empty slot in the cache. If we can't find one,
* stuff the new icon at the end of the cache. The result will
* be that the last item will be deleted.
*/
for (i = 1; i < CCACHEDCAPTIONS - 1; i++) {
if (gcachedCaptions[i].spcursor == NULL)
break;
}
}
/*
* Add an item to the cache by blting an active and inactive copy of
* the icon.
*/
BltMe4Times(gcachedCaptions[i].pOem,
cxySlot,
SYSMET(CXSMICON),
ghdcMem,
pcursor,
flags);
Lock(&(gcachedCaptions[i].spcursor), pcursor);
#if DBG
gcachedCaptions[i].hico = (HICON)PtoH(pcursor);
#endif
}
/*
* We have a hit, so move that cached icon to the front of the cache.
* This means that the least recently used icon will be the last icon in
* the cache. Remember, we never update index 0 because it is reserved
* for the DC_INBUTTON icon.
*/
for ( ; i > 1; i-- ) {
/*
* Move the entry toward the front.
*/
ccTemp = gcachedCaptions[i];
gcachedCaptions[i] = gcachedCaptions[i - 1];
gcachedCaptions[i - 1] = ccTemp;
#if DBG
/*
* In checked builds we need to adjust the lock records for the
* cursor so it has the correct address.
*/
if (IsDbgTagEnabled(DBGTAG_TrackLocks)) {
if (gcachedCaptions[i].spcursor) {
HMRelocateLockRecord(&(gcachedCaptions[i].spcursor), (int)sizeof(CAPTIONCACHE));
}
if (gcachedCaptions[i - 1].spcursor) {
HMRelocateLockRecord(&(gcachedCaptions[i - 1].spcursor), -(int)sizeof(CAPTIONCACHE));
}
}
#endif
}
/*
* Make sure the icon we want to draw is the one that we hit in the
* cache.
*/
UserAssert(gcachedCaptions[i].hico == PtoH(pcursor));
/*
* Determine what cached bitmap to blt.
*/
pOem = gcachedCaptions[i].pOem;
if (!(flags & DC_ACTIVE)) {
pOem += DOBI_CAPOFF;
}
GreBitBlt(hdc,
lprc->left,
lprc->top,
cxySlot,
cxySlot,
HDCBITS(),
pOem->x,
pOem->y,
SRCCOPY,
0);
Done:
/*
* Adjust the given rectangle for the icon we just drew
*/
lprc->left += cxySlot;
}
/***************************************************************************\
* FillGradient
*
* The rectangle is broken into two triangles: {0, 1, 2} and {0, 2, 3}.
* Color on {0, 3} is black, and on {1, 2) is the active caption color.
*
* 0 1
* 3 2
*
* 12/06/96 vadimg created
\***************************************************************************/
VOID FillGradient(
HDC hdc,
LPCRECT prc,
COLORREF rgbLeft,
COLORREF rgbRight)
{
TRIVERTEX avert[4];
static GRADIENT_RECT auRect[1] = {0,1};
#define GetCOLOR16(RGB, clr) ((COLOR16)(Get ## RGB ## Value(clr) << 8))
avert[0].Red = GetCOLOR16(R, rgbLeft);
avert[0].Green = GetCOLOR16(G, rgbLeft);
avert[0].Blue = GetCOLOR16(B, rgbLeft);
avert[1].Red = GetCOLOR16(R, rgbRight);
avert[1].Green = GetCOLOR16(G, rgbRight);
avert[1].Blue = GetCOLOR16(B, rgbRight);
avert[0].x = prc->left;
avert[0].y = prc->top;
avert[1].x = prc->right;
avert[1].y = prc->bottom;
GreGradientFill(hdc, avert, 2,(PVOID)auRect, 1, GRADIENT_FILL_RECT_H);
}
VOID FillCaptionGradient(
HDC hdc,
LPCRECT prc,
BOOL fActive)
{
COLORREF rgbLeft, rgbRight;
if (fActive) {
rgbLeft = gpsi->argbSystem[COLOR_ACTIVECAPTION];
rgbRight = gpsi->argbSystem[COLOR_GRADIENTACTIVECAPTION];
} else {
rgbLeft = gpsi->argbSystem[COLOR_INACTIVECAPTION];
rgbRight = gpsi->argbSystem[COLOR_GRADIENTINACTIVECAPTION];
}
if (rgbLeft != rgbRight) {
FillGradient(hdc, prc, rgbLeft, rgbRight);
} else {
FillRect(hdc, prc, fActive ? SYSHBR(ACTIVECAPTION) : SYSHBR(INACTIVECAPTION));
}
}
/***************************************************************************\
* xxxDrawCaptionTemp
\***************************************************************************/
BOOL xxxDrawCaptionTemp(
PWND pwnd,
HDC hdc,
LPRECT lprc,
HFONT hFont,
PCURSOR pcursor,
PUNICODE_STRING pstrText,
UINT flags)
{
int iOldMode;
HBRUSH hbrFill;
LONG clrOldText;
LONG clrOldBk;
BOOL fItFit = TRUE;
BOOL fGradient = FALSE;
SIZE size;
UINT oldAlign;
CheckLock(pwnd);
if (lprc->right <= lprc->left) {
return FALSE;
}
if (pwnd != NULL) {
if (!pcursor &&
_HasCaptionIcon(pwnd) &&
!(flags & DC_SMALLCAP) &&
TestWF(pwnd, WFSYSMENU)) {
/*
* Only get the icon if we can send messages AND the window has
* a system menu.
*/
pcursor = xxxGetWindowSmIcon(pwnd, (flags & DC_NOSENDMSG));
}
}
/*
* Set up the colors.
*/
if (flags & DC_ACTIVE) {
if (flags & DC_INBUTTON) {
if (gpsi->BitCount < 8 ||
SYSRGB(3DHILIGHT) != SYSRGB(SCROLLBAR) ||
SYSRGB(3DHILIGHT) == SYSRGB(WINDOW)) {
clrOldText = SYSRGB(3DFACE);
clrOldBk = SYSRGB(3DHILIGHT);
hbrFill = gpsi->hbrGray;
iOldMode = GreSetBkMode(hdc, TRANSPARENT);
} else {
clrOldText = SYSRGB(BTNTEXT);
clrOldBk = SYSRGB(3DHILIGHT);
hbrFill = SYSHBR(3DHILIGHT);
}
} else {
clrOldText = SYSRGB(CAPTIONTEXT);
clrOldBk = SYSRGB(ACTIVECAPTION);
hbrFill = SYSHBR(ACTIVECAPTION);
if (flags & DC_GRADIENT) {
fGradient = TRUE;
iOldMode = GreSetBkMode(hdc, TRANSPARENT);
}
}
} else {
if (flags & DC_INBUTTON) {
clrOldText = SYSRGB(BTNTEXT);
clrOldBk = SYSRGB(3DFACE);
hbrFill = SYSHBR(3DFACE);
} else {
clrOldText = SYSRGB(INACTIVECAPTIONTEXT);
clrOldBk = SYSRGB(INACTIVECAPTION);
hbrFill = SYSHBR(INACTIVECAPTION);
if (flags & DC_GRADIENT) {
fGradient = TRUE;
iOldMode = GreSetBkMode(hdc, TRANSPARENT);
}
}
}
/*
* Set up drawing colors.
*/
clrOldText = GreSetTextColor(hdc, clrOldText);
clrOldBk = GreSetBkColor(hdc, clrOldBk);
if (pcursor && !(flags & DC_SMALLCAP)) {
if (flags & DC_ICON) {
/*
* Preserve icon shape when BitBlitting it to a
* mirrored DC. This way we don't violate copyright
* issues on icons. [samera]
*/
DWORD dwLayout=0L;
if ((dwLayout=GreGetLayout(hdc)) & LAYOUT_RTL) {
GreSetLayout(hdc, -1, dwLayout|LAYOUT_BITMAPORIENTATIONPRESERVED);
}
DrawCaptionIcon(hdc, lprc, pcursor, hbrFill, flags);
/*
* Restore the DC to its previous layout state.
*/
if (dwLayout & LAYOUT_RTL) {
GreSetLayout(hdc, -1, dwLayout);
}
} else {
lprc->left += lprc->bottom - lprc->top;
}
}
if (flags & DC_TEXT) {
int cch;
HFONT hfnOld;
int yCentered;
WCHAR szText[CCHTITLEMAX];
UNICODE_STRING strTmp;
PTHREADINFO ptiCurrent = PtiCurrentShared();
/*
* Get the text for the caption.
*/
if (pstrText == NULL) {
if (pwnd == NULL || (flags & DC_NOSENDMSG)) {
if (pwnd && pwnd->strName.Length) {
cch = TextCopy(&pwnd->strName, szText, CCHTITLEMAX - 1);
strTmp.Length = (USHORT)(cch * sizeof(WCHAR));
} else {
szText[0] = TEXT('\0');
cch = strTmp.Length = 0;
}
} else {
cch = xxxGetWindowText(pwnd, szText, CCHTITLEMAX - 1);
strTmp.Length = (USHORT)(cch * sizeof(WCHAR));
}
/*
* We don't use RtlInitUnicodeString() to initialize the string
* because it does a wstrlen() on the string, which is a waste
* since we already know its length.
*/
strTmp.Buffer = szText;
strTmp.MaximumLength = strTmp.Length + sizeof(UNICODE_NULL);
pstrText = &strTmp;
} else {
cch = pstrText->Length / sizeof(WCHAR);
UserAssert(pstrText->Length < pstrText->MaximumLength);
UserAssert(pstrText->Buffer[cch] == 0);
}
/*
* We need to set up the font first, in case we're centering
* the caption. Fortunately, no text at all is uncommon.
*/
if (hFont == NULL) {
if (flags & DC_SMALLCAP) {
hFont = ghSmCaptionFont;
yCentered = gcySmCaptionFontChar;
} else {
hFont = gpsi->hCaptionFont;
yCentered = gcyCaptionFontChar;
}
yCentered = (lprc->top + lprc->bottom - yCentered) / 2;
hfnOld = GreSelectFont(hdc, hFont);
} else {
TEXTMETRICW tm;
/*
* UNCOMMON case: only for control panel
*/
hfnOld = GreSelectFont(hdc, hFont);
if (!_GetTextMetricsW(hdc, &tm)) {
RIPMSG0(RIP_WARNING, "xxxDrawCaptionTemp: _GetTextMetricsW Failed");
tm.tmHeight = gpsi->tmSysFont.tmHeight;
}
yCentered = (lprc->top + lprc->bottom - tm.tmHeight) / 2;
}
/*
* Draw text
*/
if (fGradient) {
FillCaptionGradient(hdc, lprc, flags & DC_ACTIVE);
} else {
FillRect(hdc, lprc, hbrFill);
}
if (hbrFill == gpsi->hbrGray) {
GreSetTextColor(hdc, SYSRGB(BTNTEXT));
GreSetBkColor(hdc, SYSRGB(GRAYTEXT));
}
/*
* GDI doesn't do callbacks to the LPK. If an LPK is installed
* and we're not in thread cleanup mode, call the appropriate
* client side GDI routines.
*/
if (CALL_LPK(ptiCurrent)) {
xxxClientGetTextExtentPointW(hdc, pstrText->Buffer, cch, &size);
} else {
GreGetTextExtentW(hdc, pstrText->Buffer, cch, &size, GGTE_WIN3_EXTENT);
}
if (pwnd && TestWF(pwnd, WEFRTLREADING)) {
oldAlign = GreSetTextAlign(hdc, TA_RTLREADING | GreGetTextAlign(hdc));
}
if (!(flags & DC_CENTER) && (!cch || (size.cx <= (lprc->right - lprc->left - SYSMET(CXEDGE))))) {
if (pwnd && TestWF(pwnd, WEFRIGHT)) {
if (CALL_LPK(ptiCurrent)) {
xxxClientExtTextOutW(hdc, lprc->right - (size.cx + SYSMET(CXEDGE)), yCentered,
ETO_CLIPPED, lprc, pstrText->Buffer, cch, NULL);
}
else {
GreExtTextOutW(hdc, lprc->right - (size.cx + SYSMET(CXEDGE)), yCentered,
ETO_CLIPPED, lprc, pstrText->Buffer, cch, NULL);
}
} else {
if (CALL_LPK(ptiCurrent)) {
xxxClientExtTextOutW(hdc, lprc->left + SYSMET(CXEDGE), yCentered,
ETO_CLIPPED, lprc, pstrText->Buffer, cch, NULL);
}
else {
GreExtTextOutW(hdc, lprc->left + SYSMET(CXEDGE), yCentered,
ETO_CLIPPED, lprc, pstrText->Buffer, cch, NULL);
}
}
#ifdef LAME_BUTTON
if ((flags & DC_LAMEBUTTON) && pwnd != NULL && TestWF(pwnd, WEFLAMEBUTTON)) {
GreSelectFont(hdc, ghLameFont);
/*
* Make sure the Lame! text fits in the caption
*/
if (size.cx + gpsi->ncxLame + 2 * SYSMET(CXEDGE) <=
(lprc->right - lprc->left - SYSMET(CXEDGE))) {
int x;
if (pwnd && TestWF(pwnd, WEFRIGHT)) {
x = lprc->left + SYSMET(CXEDGE);
} else {
x = lprc->right - SYSMET(CXEDGE) - gpsi->ncxLame;
}
if (CALL_LPK(ptiCurrent)) {
xxxClientExtTextOutW(hdc,
x,
yCentered,
ETO_CLIPPED,
lprc,
gpsi->gwszLame,
wcslen(gpsi->gwszLame),
NULL);
} else {
GreExtTextOutW(hdc,
x,
yCentered,
ETO_CLIPPED,
lprc,
gpsi->gwszLame,
wcslen(gpsi->gwszLame),
NULL);
}
}
}
#endif
} else {
DRAWTEXTPARAMS dtp;
UINT wSide;
dtp.cbSize = sizeof(DRAWTEXTPARAMS);
dtp.iLeftMargin = SYSMET(CXEDGE);
dtp.iRightMargin = 0;
wSide = (flags & DC_CENTER) ? DT_CENTER
: ((pwnd && TestWF(pwnd, WEFRIGHT)) ? DT_RIGHT : 0);
DrawTextEx(hdc,
pstrText->Buffer,
cch,
lprc,
DT_NOPREFIX | DT_END_ELLIPSIS | DT_SINGLELINE | DT_VCENTER |
wSide, &dtp);
fItFit = FALSE;
}
if (pwnd && TestWF(pwnd, WEFRTLREADING)) {
GreSetTextAlign(hdc, oldAlign);
}
if (hfnOld) {
GreSelectFont(hdc, hfnOld);
}
}
/*
* Restore colors.
*/
GreSetTextColor(hdc, clrOldText);
GreSetBkColor(hdc, clrOldBk);
if (hbrFill == gpsi->hbrGray) {
GreSetBkMode(hdc, iOldMode);
}
return fItFit;
}
/***************************************************************************\
* xxxDrawCaptionBar
*
*
\***************************************************************************/
VOID xxxDrawCaptionBar(
PWND pwnd,
HDC hdc,
UINT wFlags)
{
UINT bm = OBI_CLOSE;
RECT rcWindow;
HBRUSH hBrush = NULL;
HBRUSH hCapBrush;
int colorBorder;
UINT wBtns;
UINT wCode;
BOOL fGradient = FALSE;
CheckLock(pwnd);
/*
* If we're not currently showing on the screen, return.
* NOTE
* If you remove the IsVisible() check from DrawWindowFrame(), then
* be careful to remove the NC_NOVISIBLE flag too. This is a smallish
* speed thing, so that we don't have to call IsVisible() twice on a
* window. DrawWindowFrame() already checks.
*/
if (!(wFlags & DC_NOVISIBLE) && !IsVisible(pwnd)) {
return;
}
/*
* Clear this flag so we know the frame has been drawn.
*/
ClearHungFlag(pwnd, WFREDRAWFRAMEIFHUNG);
GetRect(pwnd, &rcWindow, GRECT_WINDOW | GRECT_WINDOWCOORDS);
/*
* The TestALPHA() will return false in ts connections because the
* gbDisableAlpha flag will be set to true. So, we need to special case
* for TS connections. If this is a remote connection and the gradient
* captions flag is set, ideally, we should force it to draw gradients.
* However, for 8-bit color, enabling gradients looks ugly. We will fix
* this for Blackcomb.
*
* The code should be something like this:
* fGradient = IsRemoteConnection() && !8-bit color ? TestEffectUP(GRADIENTCAPTIONS) : TestALPHA(GRADIENTCAPTIONS);
*/
fGradient = TestALPHA(GRADIENTCAPTIONS);
if (fGradient) {
hCapBrush = (wFlags & DC_ACTIVE) ? SYSHBR(GRADIENTACTIVECAPTION) : SYSHBR(GRADIENTINACTIVECAPTION);
} else {
hCapBrush = (wFlags & DC_ACTIVE) ? SYSHBR(ACTIVECAPTION) : SYSHBR(INACTIVECAPTION);
}
wCode = 0;
if (!xxxMNCanClose(pwnd)) {
wCode |= NOCLOSE;
}
if (!TestWF(pwnd, WFMAXBOX)) {
wCode |= NOMAX;
} else if (TestWF(pwnd, WFMAXIMIZED)) {
wCode |= MAX;
}
if (!TestWF(pwnd, WFMINBOX)) {
wCode |= NOMIN;
} else if (TestWF(pwnd, WFMINIMIZED)) {
wCode |= MIN;
}
if (TestWF(pwnd, WFMINIMIZED)) {
if (wFlags & DC_FRAME) {
/*
* Raised outer edge + border
*/
DrawEdge(hdc, &rcWindow, EDGE_RAISED, (BF_RECT | BF_ADJUST));
DrawFrame(hdc, &rcWindow, 1, DF_3DFACE);
InflateRect(&rcWindow, -SYSMET(CXBORDER), -SYSMET(CYBORDER));
} else {
InflateRect(&rcWindow, -SYSMET(CXFIXEDFRAME), -SYSMET(CYFIXEDFRAME));
}
rcWindow.bottom = rcWindow.top + SYSMET(CYSIZE);
hBrush = GreSelectBrush(hdc, hCapBrush);
} else {
/*
* BOGUS
* What color should we draw borders in? The check is NOT simple.
* At create time, we set the 3D bits. NCCREATE will also
* set them for listboxes, edit fields,e tc.
*/
colorBorder = (TestWF(pwnd, WEFEDGEMASK) && !TestWF(pwnd, WFOLDUI)) ? COLOR_3DFACE : COLOR_WINDOWFRAME;
/*
* Draw the window frame.
*/
if (wFlags & DC_FRAME) {
/*
* Window edge
*/
if (TestWF(pwnd, WEFWINDOWEDGE)) {
DrawEdge(hdc, &rcWindow, EDGE_RAISED, BF_RECT | BF_ADJUST);
} else if (TestWF(pwnd, WEFSTATICEDGE)) {
DrawEdge(hdc, &rcWindow, BDR_SUNKENOUTER, BF_RECT | BF_ADJUST);
}
/*
* Size border
*/
if (TestWF(pwnd, WFSIZEBOX)) {
DrawFrame(hdc,
&rcWindow,
gpsi->gclBorder,
((wFlags & DC_ACTIVE) ? DF_ACTIVEBORDER : DF_INACTIVEBORDER));
InflateRect(&rcWindow,
-gpsi->gclBorder * SYSMET(CXBORDER),
-gpsi->gclBorder * SYSMET(CYBORDER));
}
/*
* Normal border
*/
if (TestWF(pwnd, WFBORDERMASK) || TestWF(pwnd, WEFDLGMODALFRAME)) {
DrawFrame(hdc, &rcWindow, 1, (colorBorder << 3));
InflateRect(&rcWindow, -SYSMET(CXBORDER), -SYSMET(CYBORDER));
}
} else {
int cBorders;
cBorders = GetWindowBorders(pwnd->style, pwnd->ExStyle, TRUE, FALSE);
InflateRect(&rcWindow,
-cBorders * SYSMET(CXBORDER),
-cBorders * SYSMET(CYBORDER));
}
/*
* Punt if the window doesn't have a caption currently showing on
* screen.
*/
if (!TestWF(pwnd, WFCPRESENT)) {
return;
}
if (TestWF(pwnd, WEFTOOLWINDOW)) {
wCode |= SMCAP;
rcWindow.bottom = rcWindow.top + SYSMET(CYSMSIZE);
bm = OBI_CLOSE_PAL;
} else {
rcWindow.bottom = rcWindow.top + SYSMET(CYSIZE);
}
{
POLYPATBLT PolyData;
PolyData.x = rcWindow.left;
PolyData.y = rcWindow.bottom;
PolyData.cx = rcWindow.right - rcWindow.left;
PolyData.cy = SYSMET(CYBORDER);
PolyData.BrClr.hbr = SYSHBRUSH(colorBorder);
GrePolyPatBlt(hdc,PATCOPY,&PolyData,1,PPB_BRUSH);
}
GreSelectBrush(hdc, hCapBrush);
}
if (!TestWF(pwnd, WFSYSMENU) && TestWF(pwnd, WFWIN40COMPAT)) {
goto JustDrawIt;
}
/*
* New Rules:
* (1) The caption has a horz border beneath it separating it from the
* menu or client.
* (2) The caption text area has an edge of space on the left and right
* before the characters.
* (3) We account for the descent below the baseline of the caption char
*/
wBtns = 1;
if (!(wFlags & DC_BUTTONS)) {
if ((!wCode) || (!(wCode & SMCAP) && ((wCode & NOSIZE) != NOSIZE))) {
wBtns += 2;
} else {
rcWindow.right -= SYSMET(CXEDGE);
if ((wCode == NOSIZE) && (wCode && TestWF(pwnd, WEFCONTEXTHELP))) {
wBtns++;
}
}
rcWindow.right -= wBtns * ((wCode & SMCAP) ? SYSMET(CXSMSIZE) : SYSMET(CXSIZE));
goto JustDrawIt;
}
if (!wCode || (wCode == NOSIZE)) {
POEMBITMAPINFO pOem = gpsi->oembmi + OBI_CAPBTNS;
int cx;
cx = (wCode ? SYSMET(CXSIZE) + SYSMET(CXEDGE) : SYSMET(CXSIZE) * 3);
if (!(wFlags & DC_ACTIVE))
pOem += DOBI_CAPOFF;
rcWindow.right -= cx;
GreBitBlt(hdc,
rcWindow.right,
rcWindow.top,
cx,
pOem->cy,
HDCBITS(),
pOem->x + pOem->cx - SYSMET(CXSIZE) - cx,
pOem->y,
SRCCOPY,
0);
if (wCode && TestWF(pwnd, WEFCONTEXTHELP)) {
rcWindow.right -= SYSMET(CXSIZE) - SYSMET(CXEDGE);
GreBitBlt(hdc,
rcWindow.right,
rcWindow.top,
SYSMET(CXSIZE),
pOem->cy,
HDCBITS(),
pOem->x + pOem->cx - SYSMET(CXSIZE),
pOem->y,
SRCCOPY,
0);
/*
* If the UI language is Hebrew we do not want to mirror the ? mark only
* Then redraw ? with out the button frame.
*/
if (HEBREW_UI_LANGID() && TestWF(pwnd, WEFLAYOUTRTL)) {
GreBitBlt(hdc,
rcWindow.right-SYSMET(CXEDGE),
rcWindow.top+2,
SYSMET(CXSIZE)-SYSMET(CXEDGE)*2,
pOem->cy-4,
HDCBITS(),
pOem->x + pOem->cx - SYSMET(CXSIZE) + SYSMET(CXEDGE),
pOem->y + SYSMET(CXEDGE),
SRCCOPY|NOMIRRORBITMAP,
0);
}
}
goto JustDrawIt;
}
/*
* Draw the caption buttons
*/
rcWindow.top += SYSMET(CYEDGE);
rcWindow.bottom -= SYSMET(CYEDGE);
rcWindow.right -= SYSMET(CXEDGE);
GrePatBlt(hdc,
rcWindow.right,
rcWindow.top,
SYSMET(CXEDGE),
rcWindow.bottom - rcWindow.top,
PATCOPY);
if (wCode & NOCLOSE) {
bm += DOBI_INACTIVE;
}
rcWindow.right -= gpsi->oembmi[bm].cx;
BitBltSysBmp(hdc, rcWindow.right, rcWindow.top, bm);
if (!(wCode & SMCAP) && ((wCode & NOSIZE) != NOSIZE)) {
rcWindow.right -= SYSMET(CXEDGE);
GrePatBlt(hdc,
rcWindow.right,
rcWindow.top,
SYSMET(CXEDGE),
rcWindow.bottom - rcWindow.top,
PATCOPY);
/*
* Max Box.
*
* If window is maximized use the restore bitmap; otherwise use the
* regular zoom bitmap.
*/
bm = (wCode & MAX) ? OBI_RESTORE : ((wCode & NOMAX) ? OBI_ZOOM_I : OBI_ZOOM);
rcWindow.right -= gpsi->oembmi[bm].cx;
BitBltSysBmp(hdc, rcWindow.right, rcWindow.top, bm);
/*
* Min Box.
*/
bm = (wCode & MIN) ? OBI_RESTORE : ((wCode & NOMIN) ? OBI_REDUCE_I : OBI_REDUCE);
rcWindow.right -= gpsi->oembmi[bm].cx;
BitBltSysBmp(hdc, rcWindow.right, rcWindow.top, bm);
rcWindow.right -= SYSMET(CXEDGE);
GrePatBlt(hdc,
rcWindow.right,
rcWindow.top,
SYSMET(CXEDGE),
rcWindow.bottom - rcWindow.top,
PATCOPY);
wBtns += 2;
}
if ((wCode & (NOCLOSE | NOSIZE)) &&
(!(wCode & SMCAP)) && TestWF(pwnd, WEFCONTEXTHELP)) {
rcWindow.right -= SYSMET(CXEDGE);
GrePatBlt(hdc,
rcWindow.right,
rcWindow.top,
SYSMET(CXEDGE),
rcWindow.bottom - rcWindow.top,
PATCOPY);
bm = OBI_HELP;
rcWindow.right -= gpsi->oembmi[bm].cx;
BitBltSysBmp(hdc, rcWindow.right, rcWindow.top, bm);
wBtns++;
}
rcWindow.top -= SYSMET(CYEDGE);
rcWindow.bottom += SYSMET(CYEDGE);
wBtns *= (wCode & SMCAP) ? SYSMET(CXSMSIZE) : SYSMET(CXSIZE);
{
POLYPATBLT PolyData[2];
PolyData[0].x = rcWindow.right;
PolyData[0].y = rcWindow.top;
PolyData[0].cx = wBtns;
PolyData[0].cy = SYSMET(CYEDGE);
PolyData[0].BrClr.hbr = NULL;
PolyData[1].x = rcWindow.right;
PolyData[1].y = rcWindow.bottom - SYSMET(CYEDGE);
PolyData[1].cx = wBtns;
PolyData[1].cy = SYSMET(CYEDGE);
PolyData[1].BrClr.hbr = NULL;
GrePolyPatBlt(hdc,PATCOPY,&PolyData[0],2,PPB_BRUSH);
}
/*
* We're going to release this DC -- we don't need to bother reselecting
* in the old brush.
*/
if (hBrush) {
GreSelectBrush(hdc, hBrush);
}
JustDrawIt:
/*
* Call DrawCaption only if we need to draw the icon or the text.
*
* If the text gets truncated, set the window flag for the caption
* tooltip.
*/
if (wFlags & (DC_TEXT | DC_ICON)) {
#ifdef LAME_BUTTON
wFlags |= DC_LAMEBUTTON;
#endif // LAME_BUTTON
/*
* The TestALPHA() will return false in ts connections because the
* gbDisableAlpha flag will be set to true. So, we need to special
* case for TS connections. If this is a remote connection and the
* gradient captions flag is set, ideally, we should force it to
* draw gradients. However, for 8-bit color, enabling gradients
* looks ugly. We will fix this for Blackcomb.
*/
if (!xxxDrawCaptionTemp(pwnd,
hdc,
&rcWindow,
NULL,
NULL,
NULL,
wFlags | ((wCode & SMCAP) ? DC_SMALLCAP : 0) |
(fGradient? DC_GRADIENT : 0))) {
SetWF(pwnd, WEFTRUNCATEDCAPTION);
} else {
ClrWF(pwnd, WEFTRUNCATEDCAPTION);
}
}
}