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windows-nt-4.0/private/sdktools/topdesk/mrshadow/mrshadow.c

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/****************************** Module Header ******************************\
* Module Name: mrshadow.c - MrShadow application
*
* Copyright (c) 1992 Sanford Staab
*
\***************************************************************************/
#define NOGDICAPMASKS
#define NOATOM
#define NOCLIPBOARD
#define NOLOGERROR
#define NOMETAFILE
#define NOOEMRESOURCE
#define NOSCROLL
#define NOPROFILER
#define NODRIVERS
#define NOCOMM
#define NODBCS
#define NOSYSTEMPARAMSINFO
#define NOSCALABLEFONT
#include "mrshadow.h"
#include "itsybits.h"
#define RHITCIRCLE 4
#define RSHADOWCIRCLE 16
#define CXCOLORBAR 8
#define BACKCOLOR RGB(0, 255, 255)
#define GLINTSENSITIVITY 1
#define DBGSHOWRGN(hrgn)
//#define DBGSHOWRGN(hrgn) if (IsWindowVisible(hwndMrShadow)) { \
HRGN hrgnSave; \
HDC hdc; \
\
hrgnSave = CreateRectRgn(0, 0, 0, 0); \
CombineRgn(hrgnSave, hrgn, NULL, RGN_COPY); \
SetWindowRgn(hwndMrShadow, hrgnSave, TRUE); \
UpdateWindow(hwndMrShadow); \
MessageBeep(0); \
Sleep(1000); \
}
#ifndef HLOCAL
#define HLOCAL HANDLE
#endif /* HLOCAL */
#ifndef MAX_PATH
#define MAX_PATH 128
#endif
UINT wmRefreshMsg;
HINSTANCE hInst;
HKEY hKeyMrShadow = NULL;
HWND hwndMrShadow = NULL;
TCHAR pszTitle[] = TEXT("Mr Shadow");
TCHAR pszTitle2[] = TEXT("Invisible Mr Shadow");
int cxShift = 2;
int cyShift = 2;
RECT rcDesk;
HCURSOR hCurCross = NULL;
HCURSOR hCurArrow = NULL;
HCURSOR hCurUpDown = NULL;
BYTE bShadowColor = 0;
HRGN hrgnHMask = NULL;
HRGN hrgnVMask = NULL;
HRGN hrgnCheckers = NULL;
HRGN hrgnGlintMask = NULL;
BOOL fVMask = FALSE;
BOOL fHMask = FALSE;
BOOL fGlint = TRUE;
int cHwnds = 0;
typedef struct tagWINFO {
HWND hwnd;
RECT rc;
int Depth;
} WINFO, *PWINFO;
PWINFO paWinfo = NULL;
PWINFO paWinfoLast = NULL;
BOOL *aRegional = NULL;
VOID InitBigRegions()
{
HRGN hrgn1;
int cx, cy;
hrgn1 = CreateRectRgn(0, 0, 1, 1); // create working region.
hrgnVMask = CreateRectRgn(0, 0, 1, rcDesk.bottom);
for (cx = 2; cx < rcDesk.right; cx <<= 1) {
CombineRgn(hrgn1, hrgnVMask, NULL, RGN_COPY);
OffsetRgn(hrgn1, cx, 0);
CombineRgn(hrgnVMask, hrgnVMask, hrgn1, RGN_OR);
}
if (cx > rcDesk.right) {
cx >>= 1;
CombineRgn(hrgn1, hrgnVMask, NULL, RGN_COPY);
OffsetRgn(hrgn1, (rcDesk.right - cx + 1) & ~1, 0); // even offset!
CombineRgn(hrgnVMask, hrgnVMask, hrgn1, RGN_OR);
}
hrgnHMask = CreateRectRgn(0, 0, rcDesk.right, 1);
for (cy = 2; cy < rcDesk.bottom; cy <<= 1) {
CombineRgn(hrgn1, hrgnHMask, NULL, RGN_COPY);
OffsetRgn(hrgn1, 0, cy);
CombineRgn(hrgnHMask, hrgnHMask, hrgn1, RGN_OR);
}
if (cy > rcDesk.bottom) {
cy >>= 1;
CombineRgn(hrgn1, hrgnHMask, NULL, RGN_COPY);
OffsetRgn(hrgn1, 0, (rcDesk.bottom - cy + 1) & ~1); // even offset!
CombineRgn(hrgnHMask, hrgnHMask, hrgn1, RGN_OR);
}
DeleteObject(hrgn1);
}
HRGN CreateWindowRgn(
int i)
{
int iResult;
HRGN hrgn;
hrgn = CreateRectRgnIndirect(&paWinfo[i].rc);
iResult = GetWindowRgn(paWinfo[i].hwnd, hrgn);
if (iResult != NULLREGION && iResult != ERROR) {
OffsetRgn(hrgn, paWinfo[i].rc.left, paWinfo[i].rc.top);
if (fGlint) {
aRegional[i] = TRUE;
}
}
return(hrgn);
}
VOID CalculateRegion(
BOOL fForceRecalc)
{
HWND hwnd;
HRGN hrgnShadow, hrgn1, hrgn2, hrgn3;
RECT rc;
HRGN *aGlintHrgn = NULL;
PWINFO paWinfoNew;
int cHwndsAlloc, iHwnd, i, iCastTarget;
static int cLastHwnds = 10;
static int cHwndInfoLast = 0;
int Depth;
hwnd = GetWindow(GetDesktopWindow(), GW_CHILD);
cHwnds = 0;
cHwndsAlloc = cLastHwnds;
paWinfo = LocalAlloc(LPTR, sizeof(WINFO) * cHwndsAlloc);
if (paWinfo == NULL) {
return;
}
/*
* This higher this number, the more the topmost window stands out.
*/
Depth = 2;
/*
* Count the top-level windows and store their rects, depths and hwnds.
*/
while (hwnd) {
/*
* Only do windows that are visible, not us, and intersect with
* the desktop.
*/
if (hwnd != hwndMrShadow
&& IsWindowVisible(hwnd)
&& !IsIconic(hwnd)
) {
GetWindowRect(hwnd, &rc);
IntersectRect(&rc, &rc, &rcDesk);
if (!IsRectEmpty(&rc)) {
/*
* Realloc array as needed.
*/
if (cHwnds >= cHwndsAlloc) {
cHwndsAlloc += 10;
paWinfoNew = LocalReAlloc(paWinfo, cHwndsAlloc * sizeof(WINFO), LMEM_MOVEABLE);
if (paWinfo == NULL) {
LocalFree(paWinfo);
return;
}
paWinfo = paWinfoNew;
}
/*
* store info
*/
paWinfo[cHwnds].hwnd = hwnd;
GetWindowRect(hwnd, &(paWinfo[cHwnds].rc));
paWinfo[cHwnds].Depth = Depth;
/*
* Calculate its depth - If all windows at the same depth do
* not intersect it, it gets the same depth. If any intersect,
* it goes one level lower.
*/
for (i = cHwnds - 1; i >= 0; i--) {
if (paWinfo[i].Depth != Depth)
break;
if (IntersectRect(&rc, &paWinfo[i].rc, &paWinfo[cHwnds].rc)) {
Depth++;
paWinfo[cHwnds].Depth = Depth;
break;
}
}
cHwnds++;
}
}
hwnd = GetWindow(hwnd, GW_HWNDNEXT);
}
/*
* LATER: recalculate depths so as to minimize the number of depths.
* Thus if one window happens to intersect a window below it, this
* doesn't mean that all windows above it need be at its level. This
* will prevent icon titles from forming two or more levels just
* because a couple of them overlapped.
*/
/*
* Add the desktop. Realloc array as needed to make room.
*/
if (cHwnds >= cHwndsAlloc) {
cHwndsAlloc += 1;
paWinfoNew = LocalReAlloc(paWinfo, cHwndsAlloc * sizeof(WINFO), LMEM_MOVEABLE);
if (paWinfoNew == NULL) {
LocalFree(paWinfo);
return;
}
paWinfo = paWinfoNew;
}
/*
* The last entry is for the desktop. (last is on the bottom)
*/
paWinfo[cHwnds].hwnd = GetDesktopWindow();
CopyRect(&paWinfo[cHwnds].rc, &rcDesk);
paWinfo[cHwnds].Depth = ++Depth;
cHwnds++;
/*
* Place the topmost window out a little further so it stands out.
*/
paWinfo[0].Depth = 0;
cLastHwnds = cHwnds; // addaptive allocations - COOL!
/*
* Now before we do costly region calculations, find out if we need to.
* if *paWinfoLast == *paWinfo, we are done! (The only case where this
* isn't true would be for dynamically changing regional windows. Rects
* don't change but regions do.)
*/
if (!fForceRecalc &&
paWinfoLast != NULL &&
cHwnds == cHwndInfoLast &&
!memcmp(paWinfo, paWinfoLast, cHwnds * sizeof(WINFO))) {
LocalFree(paWinfo);
return;
}
if (fGlint) {
/*
* Now reallocate the regional array. This tells us which windows
* are reginal and is used for glinting effects. (we don't glint
* regional windows because painting is too hard.) We put this into
* a separate array so the quick memcmp check above can be done.
*/
if (aRegional != NULL) {
LocalFree(aRegional);
}
aRegional = LocalAlloc(LPTR, cHwnds * sizeof(BOOL));
if (aRegional == NULL) {
LocalFree(paWinfo);
return;
}
/*
* Reallocate the glint region array. The glint region array is used
* to build up the glint region layer by layer so that only shadows
* cast on that layer are removed from the glint region.
*/
if (aGlintHrgn == NULL) {
LocalFree(aGlintHrgn);
}
aGlintHrgn = LocalAlloc(LPTR, Depth * sizeof(HRGN));
if (aGlintHrgn == NULL) {
LocalFree(aRegional);
LocalFree(paWinfo);
return;
}
/*
* Initialize the glint regions to empty.
*/
for (i = 0; i < Depth; i++) {
aGlintHrgn[i] = CreateRectRgn(0, 0, 0, 0);
}
}
/*
* Go from the bottom up to generate the shadow region. Skip the desktop
* since it doesn't cast a shadow.
*/
hrgnShadow = CreateRectRgn(0, 0, 0, 0);
for (iHwnd = cHwnds - 2; iHwnd >= 0; iHwnd--) {
HRGN hrgnWindow; // the original region of the shadow castor.
hrgnWindow = CreateWindowRgn(iHwnd);
if (fGlint && !aRegional[iHwnd]) {
/*
* add this window's glint rectangle to the glint region for the
* appropriate level. Since no windows intersect on a
* single level we don't need to worry about it. Also,
* no shadows will be cast on this glint region until
* after all glint rectangles have been set up.
*/
RECT rc;
HRGN hrgnGlintOuter;
HRGN hrgnGlintLevel;
hrgnGlintLevel = aGlintHrgn[paWinfo[iHwnd].Depth];
CopyRect(&rc, &paWinfo[iHwnd].rc);
InflateRect(&rc, 1, 1);
hrgnGlintOuter = CreateRectRgnIndirect(&rc);
CombineRgn(hrgnGlintLevel, hrgnGlintLevel, hrgnGlintOuter, RGN_OR);
DeleteObject(hrgnGlintOuter);
}
/*
* For each window below iHwnd (including the desktop) figure out
* what parts of the target window is visible and cast the shadow
* of iHwnd onto it.
*/
for (iCastTarget = cHwnds - 1; iCastTarget > iHwnd; iCastTarget--) {
HRGN hrgnCastTarget;
HRGN hrgnCastShadow;
BOOL fNullTarget;
int dDepth;
/*
* Create the CastTarget region.
*/
hrgnCastTarget = CreateWindowRgn(iCastTarget);
fNullTarget = FALSE;
for (i = iCastTarget - 1; i >= 0 && !fNullTarget; i--) {
/*
* Remove from the CastTarget region the regions of all
* windows on top of and intersecting it.
*/
if (IntersectRect(&rc, &paWinfo[iCastTarget].rc, &paWinfo[i].rc)) {
HRGN hrgnBlock;
hrgnBlock = CreateWindowRgn(i);
if (CombineRgn(hrgnCastTarget, hrgnCastTarget, hrgnBlock, RGN_DIFF)
== NULLREGION) {
/*
* The cast target is empty - no point in continuing.
*/
fNullTarget = TRUE;
}
DeleteObject(hrgnBlock);
}
}
if (fNullTarget) {
DeleteObject(hrgnCastTarget);
continue;
}
/*
* Create the region of the shadow of iHwnd cast onto
* iCastTarget. (hrgnCastShadow)
*/
hrgnCastShadow = CreateRectRgn(0, 0, 0, 0);
CombineRgn(hrgnCastShadow, hrgnWindow, NULL, RGN_COPY);
dDepth = (paWinfo[iCastTarget].Depth - paWinfo[iHwnd].Depth);
OffsetRgn(hrgnCastShadow, cxShift * dDepth, cyShift * dDepth);
if (fGlint) {
/*
* Remove the cast shadow from the glint region for the target
* target level. (Shaded areas don't have glints.)
*/
CombineRgn(aGlintHrgn[paWinfo[iCastTarget].Depth],
aGlintHrgn[paWinfo[iCastTarget].Depth],
hrgnCastShadow, RGN_DIFF);
}
/*
* remove the original window from its cast
*/
CombineRgn(hrgnCastShadow, hrgnCastShadow, hrgnWindow, RGN_DIFF);
/*
* restrict the cast shadow to the cast target area.
*/
CombineRgn(hrgnCastShadow, hrgnCastShadow, hrgnCastTarget, RGN_AND);
/*
* Add the cast shadow into the overall shadow area.
*/
CombineRgn(hrgnShadow, hrgnShadow, hrgnCastShadow, RGN_OR);
DeleteObject(hrgnCastShadow);
DeleteObject(hrgnCastTarget);
}
DeleteObject(hrgnWindow);
}
if (fGlint) {
/*
* Combine together all the glint regions
*/
if (hrgnGlintMask) {
DeleteObject(hrgnGlintMask);
}
hrgnGlintMask = CreateRectRgn(0, 0, 0, 0);
for (i = Depth - 1; i >= 0; i--) {
int j;
CombineRgn(hrgnGlintMask, hrgnGlintMask, aGlintHrgn[i], RGN_OR);
DeleteObject(aGlintHrgn[i]);
/*
* remove from the glint region the window areas of the windows
* on this level, making the glint regions frames. This also
* has the effect of removing glint regions below this level
* that would be covered by other windows.
*/
for (j = cHwnds - 2; j >= 0; j--) {
if (paWinfo[j].Depth == i) {
HRGN hrgnWindow;
hrgnWindow = CreateRectRgnIndirect(&paWinfo[j].rc);
CombineRgn(hrgnGlintMask, hrgnGlintMask, hrgnWindow, RGN_DIFF);
DeleteObject(hrgnWindow);
}
}
}
}
/*
* AND in the appropriate mask region to make the shadows transparant.
*/
if (fVMask && fHMask) {
/*
* We don't create this massive mask until we need it.
*/
if (hrgnCheckers == NULL) {
hrgnCheckers = CreateRectRgnIndirect(&rcDesk);
CombineRgn(hrgnCheckers, hrgnVMask, NULL, RGN_COPY);
CombineRgn(hrgnCheckers, hrgnHMask, hrgnCheckers, RGN_XOR);
}
CombineRgn(hrgnShadow, hrgnCheckers, hrgnShadow, RGN_AND);
} else if (fVMask) {
CombineRgn(hrgnShadow, hrgnVMask, hrgnShadow, RGN_AND);
} else if (fHMask) {
CombineRgn(hrgnShadow, hrgnHMask, hrgnShadow, RGN_AND);
}
if (fGlint) {
/*
* Or in the glint region which would not be transparent.
*/
CombineRgn(hrgnShadow, hrgnShadow, hrgnGlintMask, RGN_OR);
}
SetWindowRgn(hwndMrShadow, hrgnShadow, TRUE); // gives hrgnShadow to system.
InvalidateRect(hwndMrShadow, NULL, TRUE);
/*
* Remember paWinfo for next time.
*/
if (paWinfoLast) {
LocalFree(paWinfoLast);
}
paWinfoLast = paWinfo;
cHwndInfoLast = cHwnds;
}
//
// File IO - make that registry IO!
//
BOOL MyQueryProfileSize(
LPTSTR szFname,
INT *pSize)
{
DWORD type;
*pSize = 0;
if (hKeyMrShadow == NULL) {
return(FALSE);
}
return(RegQueryValueEx(hKeyMrShadow, szFname, 0, &type, NULL, (LPDWORD)pSize)
== ERROR_SUCCESS);
}
BOOL MyQueryProfileData(
LPTSTR szFname,
VOID *lpBuf,
INT Size)
{
DWORD type = REG_BINARY;
if (hKeyMrShadow == NULL) {
return(FALSE);
}
return(RegQueryValueEx(hKeyMrShadow, szFname, NULL, &type, lpBuf, (LPDWORD)&Size)
== ERROR_SUCCESS);
}
UINT MyWriteProfileData(
LPTSTR szFname,
VOID *lpBuf,
UINT cb)
{
if (hKeyMrShadow == NULL) {
return(FALSE);
}
return(RegSetValueEx(hKeyMrShadow, szFname, 0, REG_BINARY, lpBuf, (DWORD)cb)
== ERROR_SUCCESS);
}
BOOL CommandMsg(WORD cmd)
{
FARPROC lpfp;
switch (cmd) {
case CMD_HELP:
// WinHelp(hwndMrShadow, pszHelpFileName, HELP_INDEX, 0L);
break;
case CMD_EXIT:
// WinHelp(hwndMrShadow, pszHelpFileName, HELP_QUIT, 0);
PostMessage(hwndMrShadow, WM_CLOSE, 0, 0L);
break;
case CMD_ABOUT:
// lpfp = MakeProcInstance((FARPROC)AboutDlgProc, hInst);
// DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUT), hwndMrShadow, (DLGPROC)lpfp);
// FreeProcInstance(lpfp);
break;
default:
return(FALSE);
break;
}
return(TRUE);
}
VOID DrawGlintRect(
HDC hdc,
RECT *prc,
int cxShift,
int cyShift)
{
RECT rcLeft, rcTop, rcBottom, rcRight;
SetRect(&rcLeft,
prc->left,
prc->top,
prc->left + 1,
prc->bottom);
SetRect(&rcRight,
prc->right - 1,
prc->top,
prc->right,
prc->bottom);
SetRect(&rcTop,
prc->left,
prc->top,
prc->right,
prc->top + 1);
SetRect(&rcBottom,
prc->left,
prc->bottom - 1,
prc->right,
prc->bottom);
if (cxShift > GLINTSENSITIVITY) {
/*
* Paint left side white, right side black
*/
FillRect(hdc, &rcLeft, GetStockObject(WHITE_BRUSH));
FillRect(hdc, &rcRight, GetStockObject(BLACK_BRUSH));
} else if (cxShift < -GLINTSENSITIVITY) {
/*
* Paint left side black, right side white
*/
FillRect(hdc, &rcLeft, GetStockObject(BLACK_BRUSH));
FillRect(hdc, &rcRight, GetStockObject(WHITE_BRUSH));
} else {
/*
* Paint both sides gray
*/
FillRect(hdc, &rcLeft, GetStockObject(GRAY_BRUSH));
FillRect(hdc, &rcRight, GetStockObject(GRAY_BRUSH));
}
if (cyShift > GLINTSENSITIVITY) {
/*
* Paint top side white, bottom side black
*/
FillRect(hdc, &rcTop, GetStockObject(WHITE_BRUSH));
FillRect(hdc, &rcBottom, GetStockObject(BLACK_BRUSH));
} else if (cyShift < -GLINTSENSITIVITY) {
/*
* Paint top side black, bottom side white
*/
FillRect(hdc, &rcTop, GetStockObject(BLACK_BRUSH));
FillRect(hdc, &rcBottom, GetStockObject(WHITE_BRUSH));
} else {
/*
* Paint both sides gray
*/
FillRect(hdc, &rcTop, GetStockObject(GRAY_BRUSH));
FillRect(hdc, &rcBottom, GetStockObject(GRAY_BRUSH));
}
}
/********** MrShadow Window Procedure **************/
LONG APIENTRY MrShadowWndProc(
HWND hwnd,
UINT msg,
WPARAM wParam,
LPARAM lParam)
{
INT iReal;
RECT rc;
HMENU hMenu;
HWND hwndTop;
if (msg == wmRefreshMsg) {
CalculateRegion(FALSE);
return(0L);
}
switch (msg) {
case WM_CREATE:
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_NCHITTEST:
return(HTTRANSPARENT);
case WM_WINDOWPOSCHANGING:
{
LPWINDOWPOS pwp = (LPWINDOWPOS)lParam;
pwp->hwndInsertAfter = HWND_TOP;
pwp->x = 0;
pwp->y = 0;
pwp->cx = rcDesk.right;
pwp->cy = rcDesk.bottom;
return(0);
}
break;
case WM_TIMER:
CalculateRegion(FALSE); // To catch cmd windows
break;
case WM_LBUTTONDOWN:
break;
case WM_RBUTTONDOWN:
break;
case WM_ERASEBKGND:
{
HDC hdc = (HDC)wParam;
RECT rc;
HBRUSH hbr;
GetClientRect(hwnd, &rc);
hbr = CreateSolidBrush(RGB(bShadowColor, bShadowColor, bShadowColor));
FillRect(hdc, &rc, hbr);
DeleteObject(hbr);
return(1);
}
break;
case WM_PAINT:
if (fGlint) {
PAINTSTRUCT ps;
int i;
RECT rcLeft, rcRight, rcTop, rcBottom, rc;
HRGN hrgnSave;
BeginPaint(hwnd, &ps);
/*
* Draw Glint Rects
*/
hrgnSave = CreateRectRgnIndirect(&rcDesk);
GetClipRgn(ps.hdc, hrgnSave);
if (hrgnGlintMask) {
SelectClipRgn(ps.hdc, hrgnGlintMask);
}
for (i = cHwnds - 2; i >= 0; i--) {
if (!aRegional[i]) {
CopyRect(&rc, &paWinfo[i].rc);
InflateRect(&rc, 1, 1);
DrawGlintRect(ps.hdc, &rc, cxShift, cyShift);
}
}
SelectClipRgn(ps.hdc, hrgnSave);
DeleteObject(hrgnSave);
EndPaint(hwnd, &ps);
break;
}
goto DoDWP;
case WM_COMMAND:
if (!CommandMsg(GET_WM_COMMAND_ID(wParam, lParam)))
goto DoDWP;
break;
case WM_SYSCOMMAND:
CommandMsg(GET_WM_COMMAND_ID(wParam, lParam));
goto DoDWP;
default:
DoDWP:
return(DefWindowProc(hwnd, msg, wParam, lParam));
break;
}
return(0L);
}
HBRUSH MyCreateHatchBrush(
UINT style,
DWORD color)
{
HBRUSH hbrHatch;
HBITMAP hbm, hbmSave;
HDC hdcMem, hdc;
hdc = GetDC(hwndMrShadow);
hdcMem = CreateCompatibleDC(hdc);
ReleaseDC(hwndMrShadow, hdc);
hbm = CreateBitmap(2, 2, 1, 1, NULL);
hbmSave = SelectObject(hdcMem, hbm);
switch (style) {
case HS_CROSS:
SetPixel(hdcMem, 0, 0, color);
SetPixel(hdcMem, 0, 1, BACKCOLOR);
SetPixel(hdcMem, 1, 0, BACKCOLOR);
SetPixel(hdcMem, 1, 1, color);
break;
case HS_VERTICAL:
SetPixel(hdcMem, 0, 0, color);
SetPixel(hdcMem, 0, 1, color);
SetPixel(hdcMem, 1, 0, BACKCOLOR);
SetPixel(hdcMem, 1, 1, BACKCOLOR);
break;
case HS_HORIZONTAL:
SetPixel(hdcMem, 0, 0, color);
SetPixel(hdcMem, 0, 1, BACKCOLOR);
SetPixel(hdcMem, 1, 0, color);
SetPixel(hdcMem, 1, 1, BACKCOLOR);
break;
}
SelectObject(hdcMem, hbmSave);
DeleteDC(hdcMem);
hbrHatch = CreatePatternBrush(hbm);
DeleteObject(hbm);
return(hbrHatch);
}
LONG APIENTRY MrShadowUIWndProc(
HWND hwnd,
UINT msg,
WPARAM wParam,
LPARAM lParam)
{
static BOOL fOnSpot = FALSE;
static BOOL fDragSpot = FALSE;
static BOOL fOnBar = FALSE;
static BOOL fDragBar = FALSE;
static int cxShiftNext, cyShiftNext;
static BYTE bShadowColorNext;
RECT rc;
switch (msg) {
case WM_CREATE:
cxShiftNext = cxShift;
cyShiftNext = cyShift;
bShadowColorNext = bShadowColor;
break;
case WM_ENDSESSION:
case WM_CLOSE:
DestroyWindow(hwndMrShadow);
DestroyWindow(hwnd);
break;
case WM_MOUSEMOVE:
GetClientRect(hwnd, &rc);
if (fDragSpot) {
SetCursor(hCurCross);
cxShiftNext = rc.right / 2 - LOWORD(lParam);
cyShiftNext = rc.bottom / 2 - HIWORD(lParam);
InflateRect(&rc, -CXCOLORBAR, 0);
InvalidateRect(hwnd, &rc, TRUE);
UpdateWindow(hwnd);
} else if (fDragBar) {
SetCursor(hCurUpDown);
bShadowColorNext = (BYTE)(HIWORD(lParam) * 255 / rc.bottom);
rc.left = rc.right - CXCOLORBAR;
InvalidateRect(hwnd, &rc, TRUE);
UpdateWindow(hwnd);
} else {
POINT pt;
pt.x = (int)LOWORD(lParam);
pt.y = (int)HIWORD(lParam);
InflateRect(&rc,
-(rc.right / 2 - RHITCIRCLE),
-(rc.bottom / 2 - RHITCIRCLE));
OffsetRect(&rc, -cxShiftNext, -cyShiftNext);
if (PtInRect(&rc, pt)) {
SetCursor(hCurCross);
fOnSpot = TRUE;
} else {
GetClientRect(hwnd, &rc);
if (LOWORD(lParam) >= (rc.right - CXCOLORBAR)) {
SetCursor(hCurUpDown);
fOnBar = TRUE;
} else {
SetCursor(hCurArrow);
fOnSpot = FALSE;
fOnBar = FALSE;
}
}
}
break;
case WM_LBUTTONDOWN:
SendMessage(hwnd, WM_MOUSEMOVE, 0, lParam);
if (fOnSpot) {
fDragSpot = TRUE;
} else if (fOnBar) {
fDragBar = TRUE;
} else if (LOWORD(lParam) < CXCOLORBAR) {
GetClientRect(hwnd, &rc);
if (HIWORD(lParam) < rc.bottom / 4) {
fHMask = fVMask = FALSE;
} else if (HIWORD(lParam) < rc.bottom / 2) {
fVMask = TRUE;
fHMask = FALSE;
} else if (HIWORD(lParam) < rc.bottom * 3 / 4) {
fVMask = FALSE;
fHMask = TRUE;
} else {
fVMask = TRUE;
fHMask = TRUE;
}
InvalidateRect(hwnd, NULL, TRUE);
CalculateRegion(TRUE);
}
break;
case WM_LBUTTONUP:
SendMessage(hwnd, WM_MOUSEMOVE, 0, lParam);
if (fDragSpot) {
fDragSpot = FALSE;
GetClientRect(hwnd, &rc);
cxShift = cxShiftNext = rc.right / 2 - LOWORD(lParam);
cyShift = cyShiftNext = rc.bottom / 2 - HIWORD(lParam);
InvalidateRect(hwnd, NULL, TRUE);
CalculateRegion(TRUE);
UpdateWindow(hwnd);
} else if (fDragBar) {
fDragBar = FALSE;
GetClientRect(hwnd, &rc);
bShadowColor = bShadowColorNext = (BYTE)(HIWORD(lParam) * 255 / rc.bottom);
InvalidateRect(hwnd, NULL, TRUE);
CalculateRegion(TRUE);
UpdateWindow(hwnd);
}
break;
case WM_PAINT:
{
PAINTSTRUCT ps;
RECT rcDraw;
int y;
HBRUSH hbr, hbrRed;
GetClientRect(hwnd, &rc);
BeginPaint(hwnd, &ps);
/*
* Draw shadow angle circles
*/
hbr = CreateSolidBrush(RGB(bShadowColorNext, bShadowColorNext, bShadowColorNext));
SelectObject(ps.hdc, hbr);
Ellipse(ps.hdc,
rc.right / 2 - RSHADOWCIRCLE + cxShiftNext,
rc.bottom / 2 - RSHADOWCIRCLE + cyShiftNext,
rc.right / 2 + RSHADOWCIRCLE + cxShiftNext,
rc.bottom / 2 + RSHADOWCIRCLE + cyShiftNext);
SelectObject(ps.hdc, GetStockObject(LTGRAY_BRUSH));
DeleteObject(hbr);
Ellipse(ps.hdc,
rc.right / 2 - RSHADOWCIRCLE,
rc.bottom / 2 - RSHADOWCIRCLE,
rc.right / 2 + RSHADOWCIRCLE,
rc.bottom / 2 + RSHADOWCIRCLE);
SelectObject(ps.hdc, GetStockObject(WHITE_BRUSH));
Ellipse(ps.hdc,
rc.right / 2 - RHITCIRCLE - cxShiftNext,
rc.bottom / 2 - RHITCIRCLE - cyShiftNext,
rc.right / 2 + RHITCIRCLE - cxShiftNext,
rc.bottom / 2 + RHITCIRCLE - cyShiftNext);
/*
* Draw shade bar
*/
SetRect(&rcDraw, rc.right - CXCOLORBAR, 0, rc.right, 1);
for (y = 0; y < rc.bottom; y++) {
BYTE bColor;
bColor = (BYTE)(255 * y / rc.bottom);
hbr = CreateSolidBrush(RGB(bColor, bColor, bColor));
FillRect(ps.hdc, &rcDraw, hbr);
DeleteObject(hbr);
OffsetRect(&rcDraw, 0, 1);
}
/*
* Draw shade bar pointer
*/
y = bShadowColorNext * rc.bottom / 255;
SetRect(&rcDraw, rc.right - CXCOLORBAR, y - 1,
rc.right, y + 1);
hbrRed = CreateSolidBrush(RGB(255, 0, 0));
FillRect(ps.hdc, &rcDraw, hbr);
/*
* Draw shade mask buttons
*/
SetRect(&rcDraw, 0, 0, CXCOLORBAR, rc.bottom >> 2);
hbr = CreateSolidBrush(
RGB(bShadowColorNext, bShadowColorNext, bShadowColorNext));
FillRect(ps.hdc, &rcDraw, hbr);
DeleteObject(hbr);
if (!fHMask && !fVMask) {
FrameRect(ps.hdc, &rcDraw, hbrRed);
} else {
DrawGlintRect(ps.hdc, &rcDraw, cxShiftNext, cyShiftNext);
}
OffsetRect(&rcDraw, 0, rc.bottom >> 2);
hbr = MyCreateHatchBrush(HS_VERTICAL,
RGB(bShadowColorNext, bShadowColorNext, bShadowColorNext));
FillRect(ps.hdc, &rcDraw, hbr);
DeleteObject(hbr);
if (fVMask && !fHMask) {
FrameRect(ps.hdc, &rcDraw, hbrRed);
} else {
DrawGlintRect(ps.hdc, &rcDraw, cxShiftNext, cyShiftNext);
}
OffsetRect(&rcDraw, 0, rc.bottom >> 2);
hbr = MyCreateHatchBrush(HS_HORIZONTAL,
RGB(bShadowColorNext, bShadowColorNext, bShadowColorNext));
FillRect(ps.hdc, &rcDraw, hbr);
DeleteObject(hbr);
if (!fVMask && fHMask) {
FrameRect(ps.hdc, &rcDraw, hbrRed);
} else {
DrawGlintRect(ps.hdc, &rcDraw, cxShiftNext, cyShiftNext);
}
OffsetRect(&rcDraw, 0, rc.bottom >> 2);
hbr = MyCreateHatchBrush(HS_CROSS,
RGB(bShadowColorNext, bShadowColorNext, bShadowColorNext));
FillRect(ps.hdc, &rcDraw, hbr);
DeleteObject(hbr);
if (fVMask && fHMask) {
FrameRect(ps.hdc, &rcDraw, hbrRed);
} else {
DrawGlintRect(ps.hdc, &rcDraw, cxShiftNext, cyShiftNext);
}
OffsetRect(&rcDraw, 0, rc.bottom >> 2);
DeleteObject(hbrRed);
EndPaint(hwnd, &ps);
}
break;
}
return(ibDefWindowProc(hwnd, msg, wParam, lParam));
}
BOOL InitApplication(
HANDLE hInst)
{
WNDCLASS wc;
wmRefreshMsg = RegisterWindowMessage(TEXT(szMYWM_REFRESH));
wc.style = 0;
wc.lpfnWndProc = MrShadowWndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInst;
wc.hIcon = NULL;
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = GetStockObject(BLACK_BRUSH);
wc.lpszMenuName = NULL;
wc.lpszClassName = pszTitle2;
if (!RegisterClass(&wc)) {
return(FALSE);
}
wc.lpfnWndProc = MrShadowUIWndProc;
wc.hbrBackground = CreateSolidBrush(BACKCOLOR);
wc.lpszClassName = pszTitle;
wc.hCursor = NULL;
return(RegisterClass(&wc));
}
int WINAPI WinMain(
HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
MSG msg;
lpCmdLine;
nCmdShow;
hInst = hInstance;
if (!InitApplication(hInstance)) {
return (FALSE);
}
hCurCross = LoadCursor(NULL, IDC_CROSS);
hCurArrow = LoadCursor(NULL, IDC_ARROW);
hCurUpDown = LoadCursor(NULL, IDC_SIZENS);
hwndMrShadow = CreateWindowEx(
WS_EX_TOPMOST,
pszTitle2,
TEXT(""),
WS_POPUP,
0, 0, 0, 0, NULL, NULL, hInst, NULL);
if (!hwndMrShadow) {
return(0);
}
if (!SetMrShadowHooks(hwndMrShadow)) {
MessageBeep(0);
return(0);
}
rcDesk.left = 0;
rcDesk.right = GetSystemMetrics(SM_CXSCREEN);
rcDesk.top = 0;
rcDesk.bottom = GetSystemMetrics(SM_CYSCREEN),
InitBigRegions();
CalculateRegion(TRUE);
SetWindowPos(hwndMrShadow, HWND_TOP,
0,
0,
rcDesk.right,
rcDesk.bottom,
SWP_SHOWWINDOW);
SetActiveWindow(hwndMrShadow);
SetTimer(hwndMrShadow, 1, 1000, NULL); // To catch cmd windows
CreateWindowEx(0, pszTitle, pszTitle,
WS_POPUP | IBS_HORZCAPTION | WS_VISIBLE | WS_BORDER | WS_SYSMENU,
rcDesk.right - 64,
rcDesk.bottom - 64,
64,
64,
NULL, NULL, hInst, NULL);
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
KillTimer(hwndMrShadow, 1);
if (paWinfoLast) {
LocalFree(paWinfoLast);
}
DeleteObject(hrgnVMask);
DeleteObject(hrgnHMask);
if (hrgnCheckers) {
DeleteObject(hrgnCheckers);
}
if (hrgnGlintMask) {
DeleteObject(hrgnGlintMask);
}
if (aRegional) {
LocalFree(aRegional);
}
ClearMrShadowHooks(hwndMrShadow);
return(0);
}