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Reactos
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13 kB · 371 lines
C++
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#include "precomp.h"
/* FUNCTIONS ********************************************************/
voidLine(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, int thickness){ HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, color)); MoveToEx(hdc, x1, y1, NULL); LineTo(hdc, x2, y2); SetPixelV(hdc, x2, y2, color); DeleteObject(SelectObject(hdc, oldPen));}
voidRect(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, int thickness, int style){ HBRUSH oldBrush; LOGBRUSH logbrush; HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg)); logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID; logbrush.lbColor = (style == 2) ? fg : bg; logbrush.lbHatch = 0; oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush)); Rectangle(hdc, x1, y1, x2, y2); DeleteObject(SelectObject(hdc, oldBrush)); DeleteObject(SelectObject(hdc, oldPen));}
voidEllp(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, int thickness, int style){ HBRUSH oldBrush; LOGBRUSH logbrush; HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg)); logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID; logbrush.lbColor = (style == 2) ? fg : bg; logbrush.lbHatch = 0; oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush)); Ellipse(hdc, x1, y1, x2, y2); DeleteObject(SelectObject(hdc, oldBrush)); DeleteObject(SelectObject(hdc, oldPen));}
voidRRect(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, int thickness, int style){ LOGBRUSH logbrush; HBRUSH oldBrush; HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg)); logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID; logbrush.lbColor = (style == 2) ? fg : bg; logbrush.lbHatch = 0; oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush)); RoundRect(hdc, x1, y1, x2, y2, 16, 16); DeleteObject(SelectObject(hdc, oldBrush)); DeleteObject(SelectObject(hdc, oldPen));}
voidPoly(HDC hdc, POINT * lpPoints, int nCount, COLORREF fg, COLORREF bg, int thickness, int style, BOOL closed, BOOL inverted){ LOGBRUSH logbrush; HBRUSH oldBrush; HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, fg)); UINT oldRop = GetROP2(hdc);
if (inverted) SetROP2(hdc, R2_NOTXORPEN);
logbrush.lbStyle = (style == 0) ? BS_HOLLOW : BS_SOLID; logbrush.lbColor = (style == 2) ? fg : bg; logbrush.lbHatch = 0; oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush)); if (closed) Polygon(hdc, lpPoints, nCount); else Polyline(hdc, lpPoints, nCount); DeleteObject(SelectObject(hdc, oldBrush)); DeleteObject(SelectObject(hdc, oldPen));
SetROP2(hdc, oldRop);}
voidBezier(HDC hdc, POINT p1, POINT p2, POINT p3, POINT p4, COLORREF color, int thickness){ HPEN oldPen; POINT fourPoints[4]; fourPoints[0] = p1; fourPoints[1] = p2; fourPoints[2] = p3; fourPoints[3] = p4; oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, thickness, color)); PolyBezier(hdc, fourPoints, 4); DeleteObject(SelectObject(hdc, oldPen));}
voidFill(HDC hdc, LONG x, LONG y, COLORREF color){ HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color)); ExtFloodFill(hdc, x, y, GetPixel(hdc, x, y), FLOODFILLSURFACE); DeleteObject(SelectObject(hdc, oldBrush));}
voidErase(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, LONG radius){ LONG b = max(1, max(labs(x2 - x1), labs(y2 - y1))); HBRUSH hbr = ::CreateSolidBrush(color);
for (LONG a = 0; a <= b; a++) { LONG cx = (x1 * (b - a) + x2 * a) / b; LONG cy = (y1 * (b - a) + y2 * a) / b; RECT rc = { cx - radius, cy - radius, cx + radius, cy + radius }; ::FillRect(hdc, &rc, hbr); }
::DeleteObject(hbr);}
voidReplace(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, LONG radius){ LONG b = max(1, max(labs(x2 - x1), labs(y2 - y1)));
for (LONG a = 0; a <= b; a++) { LONG cx = (x1 * (b - a) + x2 * a) / b; LONG cy = (y1 * (b - a) + y2 * a) / b; RECT rc = { cx - radius, cy - radius, cx + radius, cy + radius }; for (LONG y = rc.top; y < rc.bottom; ++y) { for (LONG x = rc.left; x < rc.right; ++x) { if (::GetPixel(hdc, x, y) == fg) ::SetPixelV(hdc, x, y, bg); } } }}
voidAirbrush(HDC hdc, LONG x, LONG y, COLORREF color, LONG r){ for (LONG dy = -r; dy <= r; dy++) { for (LONG dx = -r; dx <= r; dx++) { if ((dx * dx + dy * dy <= r * r) && (rand() % r == 0)) ::SetPixelV(hdc, x + dx, y + dy, color); } }}
voidBrush(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF color, LONG style, INT thickness){ HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_SOLID, 1, color)); HBRUSH oldBrush = (HBRUSH) SelectObject(hdc, CreateSolidBrush(color));
if (thickness <= 1) { Line(hdc, x1, y1, x2, y2, color, thickness); } else { LONG a, b = max(1, max(labs(x2 - x1), labs(y2 - y1))); switch ((BrushStyle)style) { case BrushStyleRound: for (a = 0; a <= b; a++) { Ellipse(hdc, (x1 * (b - a) + x2 * a) / b - (thickness / 2), (y1 * (b - a) + y2 * a) / b - (thickness / 2), (x1 * (b - a) + x2 * a) / b + (thickness / 2), (y1 * (b - a) + y2 * a) / b + (thickness / 2)); } break;
case BrushStyleSquare: for (a = 0; a <= b; a++) { Rectangle(hdc, (x1 * (b - a) + x2 * a) / b - (thickness / 2), (y1 * (b - a) + y2 * a) / b - (thickness / 2), (x1 * (b - a) + x2 * a) / b + (thickness / 2), (y1 * (b - a) + y2 * a) / b + (thickness / 2)); } break;
case BrushStyleForeSlash: case BrushStyleBackSlash: { POINT offsetTop, offsetBottom; if ((BrushStyle)style == BrushStyleForeSlash) { offsetTop = { (thickness - 1) / 2, -(thickness - 1) / 2 }; offsetBottom = { -thickness / 2, thickness / 2 }; } else { offsetTop = { -thickness / 2, -thickness / 2 }; offsetBottom = { (thickness - 1) / 2, (thickness - 1) / 2 }; } POINT points[4] = { { x1 + offsetTop.x, y1 + offsetTop.y }, { x1 + offsetBottom.x, y1 + offsetBottom.y }, { x2 + offsetBottom.x, y2 + offsetBottom.y }, { x2 + offsetTop.x, y2 + offsetTop.y }, }; Polygon(hdc, points, _countof(points)); break; } } } DeleteObject(SelectObject(hdc, oldBrush)); DeleteObject(SelectObject(hdc, oldPen));}
voidRectSel(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2){ HBRUSH oldBrush; LOGBRUSH logbrush; HPEN oldPen = (HPEN) SelectObject(hdc, CreatePen(PS_DOT, 1, GetSysColor(COLOR_HIGHLIGHT))); UINT oldRop = GetROP2(hdc);
SetROP2(hdc, R2_NOTXORPEN);
logbrush.lbStyle = BS_HOLLOW; logbrush.lbColor = 0; logbrush.lbHatch = 0; oldBrush = (HBRUSH) SelectObject(hdc, CreateBrushIndirect(&logbrush)); Rectangle(hdc, x1, y1, x2, y2); DeleteObject(SelectObject(hdc, oldBrush)); DeleteObject(SelectObject(hdc, oldPen));
SetROP2(hdc, oldRop);}
voidText(HDC hdc, LONG x1, LONG y1, LONG x2, LONG y2, COLORREF fg, COLORREF bg, LPCWSTR lpchText, HFONT font, LONG style){ INT iSaveDC = ::SaveDC(hdc); // We will modify the clipping region. Save now.
CRect rc = { x1, y1, x2, y2 };
if (style == 0) // Transparent { ::SetBkMode(hdc, TRANSPARENT); } else // Opaque { ::SetBkMode(hdc, OPAQUE); ::SetBkColor(hdc, bg);
HBRUSH hbr = ::CreateSolidBrush(bg); ::FillRect(hdc, &rc, hbr); // Fill the background ::DeleteObject(hbr); }
IntersectClipRect(hdc, rc.left, rc.top, rc.right, rc.bottom);
HGDIOBJ hFontOld = ::SelectObject(hdc, font); ::SetTextColor(hdc, fg); const UINT uFormat = DT_LEFT | DT_TOP | DT_EDITCONTROL | DT_NOPREFIX | DT_NOCLIP | DT_EXPANDTABS | DT_WORDBREAK; ::DrawTextW(hdc, lpchText, -1, &rc, uFormat); ::SelectObject(hdc, hFontOld);
::RestoreDC(hdc, iSaveDC); // Restore}
BOOLColorKeyedMaskBlt(HDC hdcDest, int nXDest, int nYDest, int nWidth, int nHeight, HDC hdcSrc, int nXSrc, int nYSrc, int nSrcWidth, int nSrcHeight, HBITMAP hbmMask, COLORREF keyColor){ HDC hTempDC1, hTempDC2; HBITMAP hbmTempColor, hbmTempMask; HGDIOBJ hbmOld1, hbmOld2;
if (hbmMask == NULL) { if (keyColor == CLR_INVALID) { ::StretchBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, nSrcWidth, nSrcHeight, SRCCOPY); } else { ::GdiTransparentBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, nSrcWidth, nSrcHeight, keyColor); } return TRUE; } else if (nWidth == nSrcWidth && nHeight == nSrcHeight && keyColor == CLR_INVALID) { ::MaskBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, hbmMask, 0, 0, MAKEROP4(SRCCOPY, 0xAA0029)); return TRUE; }
hTempDC1 = ::CreateCompatibleDC(hdcDest); hTempDC2 = ::CreateCompatibleDC(hdcDest); hbmTempMask = ::CreateBitmap(nWidth, nHeight, 1, 1, NULL); hbmTempColor = CreateColorDIB(nWidth, nHeight, RGB(255, 255, 255));
// hbmTempMask <-- hbmMask (stretched) hbmOld1 = ::SelectObject(hTempDC1, hbmMask); hbmOld2 = ::SelectObject(hTempDC2, hbmTempMask); ::StretchBlt(hTempDC2, 0, 0, nWidth, nHeight, hTempDC1, 0, 0, nSrcWidth, nSrcHeight, SRCCOPY); ::SelectObject(hTempDC2, hbmOld2); ::SelectObject(hTempDC1, hbmOld1);
hbmOld1 = ::SelectObject(hTempDC1, hbmTempColor); if (keyColor == CLR_INVALID) { // hbmTempColor <-- hdcSrc (stretched) ::StretchBlt(hTempDC1, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, nSrcWidth, nSrcHeight, SRCCOPY);
// hdcDest <-- hbmTempColor (masked) ::MaskBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hTempDC1, 0, 0, hbmTempMask, 0, 0, MAKEROP4(SRCCOPY, 0xAA0029)); } else { // hbmTempColor <-- hdcDest ::BitBlt(hTempDC1, 0, 0, nWidth, nHeight, hdcDest, nXDest, nYDest, SRCCOPY);
// hbmTempColor <-- hdcSrc (color key) ::GdiTransparentBlt(hTempDC1, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, nSrcWidth, nSrcHeight, keyColor);
// hdcDest <-- hbmTempColor (masked) ::MaskBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hTempDC1, 0, 0, hbmTempMask, 0, 0, MAKEROP4(SRCCOPY, 0xAA0029)); } ::SelectObject(hTempDC1, hbmOld1);
::DeleteObject(hbmTempColor); ::DeleteObject(hbmTempMask); ::DeleteDC(hTempDC2); ::DeleteDC(hTempDC1);
return TRUE;}
void DrawXorRect(HDC hdc, const RECT *prc){ HGDIOBJ oldPen = ::SelectObject(hdc, ::CreatePen(PS_SOLID, 0, RGB(0, 0, 0))); HGDIOBJ oldBrush = ::SelectObject(hdc, ::GetStockObject(NULL_BRUSH)); INT oldRop2 = SetROP2(hdc, R2_NOTXORPEN); ::Rectangle(hdc, prc->left, prc->top, prc->right, prc->bottom); ::SetROP2(hdc, oldRop2); ::SelectObject(hdc, oldBrush); ::DeleteObject(::SelectObject(hdc, oldPen));}