X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/de2d2cdc86590c07642994e58051b94ab356256d..51072df23ffcf5bdd4651dbe0ad5143b1e360119:/src/msw/dc.cpp diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp index 0a325c7bdd..dcf230b0b6 100644 --- a/src/msw/dc.cpp +++ b/src/msw/dc.cpp @@ -23,7 +23,6 @@ // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" -#include "wx/msw/private.h" // needs to be before #include #ifdef __BORLANDC__ #pragma hdrstop @@ -41,15 +40,16 @@ #include "wx/icon.h" #endif +#include "wx/sysopt.h" #include "wx/dcprint.h" +#include "wx/module.h" #include #include +#include "wx/msw/private.h" // needs to be before #include + #if wxUSE_COMMON_DIALOGS -#if wxUSE_NORLANDER_HEADERS - #include -#endif #include #endif @@ -57,7 +57,7 @@ #include #endif - IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject) +IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase) // --------------------------------------------------------------------------- // constants @@ -73,6 +73,10 @@ static const int MM_METRIC = 10; static const double M_PI = 3.14159265358979323846; #endif // M_PI +// ROPs which don't have standard names (see "Ternary Raster Operations" in the +// MSDN docs for how this and other numbers in wxDC::Blit() are obtained) +#define DSTCOPY 0x00AA0029 // a.k.a. NOP operation + // --------------------------------------------------------------------------- // private functions // --------------------------------------------------------------------------- @@ -80,10 +84,87 @@ static const int MM_METRIC = 10; // convert degrees to radians static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; } +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- + +// instead of duplicating the same code which sets and then restores text +// colours in each wxDC method working with wxSTIPPLE_MASK_OPAQUE brushes, +// encapsulate this in a small helper class + +// wxColourChanger: changes the text colours in the ctor if required and +// restores them in the dtor +class wxColourChanger +{ +public: + wxColourChanger(wxDC& dc); + ~wxColourChanger(); + +private: + wxDC& m_dc; + + COLORREF m_colFgOld, m_colBgOld; + + bool m_changed; +}; + // =========================================================================== // implementation // =========================================================================== +// ---------------------------------------------------------------------------- +// wxColourChanger +// ---------------------------------------------------------------------------- + +wxColourChanger::wxColourChanger(wxDC& dc) : m_dc(dc) +{ + if ( dc.GetBrush().GetStyle() == wxSTIPPLE_MASK_OPAQUE ) + { + HDC hdc = GetHdcOf(dc); + m_colFgOld = ::GetTextColor(hdc); + m_colBgOld = ::GetBkColor(hdc); + + // note that Windows convention is opposite to wxWindows one, this is + // why text colour becomes the background one and vice versa + const wxColour& colFg = dc.GetTextForeground(); + if ( colFg.Ok() ) + { + ::SetBkColor(hdc, colFg.GetPixel()); + } + + const wxColour& colBg = dc.GetTextBackground(); + if ( colBg.Ok() ) + { + ::SetTextColor(hdc, colBg.GetPixel()); + } + + SetBkMode(hdc, + dc.GetBackgroundMode() == wxTRANSPARENT ? TRANSPARENT + : OPAQUE); + + // flag which telsl us to undo changes in the dtor + m_changed = TRUE; + } + else + { + // nothing done, nothing to undo + m_changed = FALSE; + } +} + +wxColourChanger::~wxColourChanger() +{ + if ( m_changed ) + { + // restore the colours we changed + HDC hdc = GetHdcOf(m_dc); + + ::SetBkMode(hdc, TRANSPARENT); + ::SetTextColor(hdc, m_colFgOld); + ::SetBkColor(hdc, m_colBgOld); + } +} + // --------------------------------------------------------------------------- // wxDC // --------------------------------------------------------------------------- @@ -97,30 +178,43 @@ wxDC::wxDC() m_oldPen = 0; m_oldBrush = 0; m_oldFont = 0; +#if wxUSE_PALETTE m_oldPalette = 0; +#endif // wxUSE_PALETTE m_bOwnsDC = FALSE; m_hDC = 0; m_windowExtX = VIEWPORT_EXTENT; m_windowExtY = VIEWPORT_EXTENT; - - m_hDCCount = 0; } wxDC::~wxDC() { - if ( m_hDC != 0 ) { + if ( m_hDC != 0 ) + { SelectOldObjects(m_hDC); - if ( m_bOwnsDC ) { - if ( m_canvas == NULL ) - ::DeleteDC(GetHdc()); + + // if we own the HDC, we delete it, otherwise we just release it + + if ( m_bOwnsDC ) + { + ::DeleteDC(GetHdc()); + } + else // we don't own our HDC + { + if (m_canvas) + { + ::ReleaseDC(GetHwndOf(m_canvas), GetHdc()); + } else - ::ReleaseDC((HWND)m_canvas->GetHWND(), GetHdc()); + { + // Must have been a wxScreenDC + ::ReleaseDC((HWND) NULL, GetHdc()); + } } } - } // This will select current objects out of the DC, @@ -154,16 +248,21 @@ void wxDC::SelectOldObjects(WXHDC dc) ::SelectObject((HDC) dc, (HFONT) m_oldFont); } m_oldFont = 0; + +#if wxUSE_PALETTE if (m_oldPalette) { - ::SelectPalette((HDC) dc, (HPALETTE) m_oldPalette, TRUE); + ::SelectPalette((HDC) dc, (HPALETTE) m_oldPalette, FALSE); } m_oldPalette = 0; +#endif // wxUSE_PALETTE } m_brush = wxNullBrush; m_pen = wxNullPen; +#if wxUSE_PALETTE m_palette = wxNullPalette; +#endif // wxUSE_PALETTE m_font = wxNullFont; m_backgroundBrush = wxNullBrush; m_selectedBitmap = wxNullBitmap; @@ -173,47 +272,78 @@ void wxDC::SelectOldObjects(WXHDC dc) // clipping // --------------------------------------------------------------------------- -void wxDC::DoSetClippingRegion(wxCoord cx, wxCoord cy, wxCoord cw, wxCoord ch) +void wxDC::UpdateClipBox() +{ +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + RECT rect; + GetClipBox(GetHdc(), &rect); + + m_clipX1 = (wxCoord) XDEV2LOG(rect.left); + m_clipY1 = (wxCoord) YDEV2LOG(rect.top); + m_clipX2 = (wxCoord) XDEV2LOG(rect.right); + m_clipY2 = (wxCoord) YDEV2LOG(rect.bottom); +} + +void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_clipping = TRUE; - m_clipX1 = (int)cx; - m_clipY1 = (int)cy; - m_clipX2 = (int)(cx + cw); - m_clipY2 = (int)(cy + ch); - DoClipping((WXHDC) m_hDC); + // the region coords are always the device ones, so do the translation + // manually + // + // FIXME: possible +/-1 error here, to check! + HRGN hrgn = ::CreateRectRgn(LogicalToDeviceX(x), + LogicalToDeviceY(y), + LogicalToDeviceX(x + w), + LogicalToDeviceY(y + h)); + if ( !hrgn ) + { + wxLogLastError(_T("CreateRectRgn")); + } + else + { + if ( ::SelectClipRgn(GetHdc(), hrgn) == ERROR ) + { + wxLogLastError(_T("SelectClipRgn")); + } + DeleteObject(hrgn); + + UpdateClipBox(); + } } void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region) { - wxCHECK_RET( region.GetHRGN(), wxT("invalid clipping region") ); +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif - wxRect box = region.GetBox(); + wxCHECK_RET( GetHrgnOf(region), wxT("invalid clipping region") ); m_clipping = TRUE; - m_clipX1 = box.x; - m_clipY1 = box.y; - m_clipX2 = box.x + box.width; - m_clipY2 = box.y + box.height; #ifdef __WIN16__ - SelectClipRgn(GetHdc(), (HRGN) region.GetHRGN()); -#else - ExtSelectClipRgn(GetHdc(), (HRGN) region.GetHRGN(), RGN_AND); -#endif -} + SelectClipRgn(GetHdc(), GetHrgnOf(region)); +#else // Win32 + ExtSelectClipRgn(GetHdc(), GetHrgnOf(region), RGN_AND); +#endif // Win16/32 -void wxDC::DoClipping(WXHDC dc) -{ - if (m_clipping && dc) - { - IntersectClipRect((HDC) dc, XLOG2DEV(m_clipX1), YLOG2DEV(m_clipY1), - XLOG2DEV(m_clipX2), YLOG2DEV(m_clipY2)); - } + UpdateClipBox(); } void wxDC::DestroyClippingRegion() { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + if (m_clipping && m_hDC) { // TODO: this should restore the previous clipping region, @@ -223,6 +353,7 @@ void wxDC::DestroyClippingRegion() SelectClipRgn(GetHdc(), rgn); DeleteObject(rgn); } + m_clipping = FALSE; } @@ -237,14 +368,23 @@ bool wxDC::CanDrawBitmap() const bool wxDC::CanGetTextExtent() const { +#ifdef __WXMICROWIN__ + // TODO Extend MicroWindows' GetDeviceCaps function + return TRUE; +#else // What sort of display is it? int technology = ::GetDeviceCaps(GetHdc(), TECHNOLOGY); return (technology == DT_RASDISPLAY) || (technology == DT_RASPRINTER); +#endif } int wxDC::GetDepth() const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return 16; +#endif + return (int)::GetDeviceCaps(GetHdc(), BITSPIXEL); } @@ -254,6 +394,10 @@ int wxDC::GetDepth() const void wxDC::Clear() { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + RECT rect; if ( m_canvas ) { @@ -261,7 +405,11 @@ void wxDC::Clear() } else { - wxCHECK_RET( m_selectedBitmap.Ok(), wxT("this DC can't be cleared") ); + // No, I think we should simply ignore this if printing on e.g. + // a printer DC. + // wxCHECK_RET( m_selectedBitmap.Ok(), wxT("this DC can't be cleared") ); + if (!m_selectedBitmap.Ok()) + return; rect.left = 0; rect.top = 0; rect.right = m_selectedBitmap.GetWidth(); @@ -284,41 +432,55 @@ void wxDC::Clear() void wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style) { - (void)ExtFloodFill(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), - col.GetPixel(), - style == wxFLOOD_SURFACE ? FLOODFILLSURFACE - : FLOODFILLBORDER); +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + if ( !::ExtFloodFill(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), + col.GetPixel(), + style == wxFLOOD_SURFACE ? FLOODFILLSURFACE + : FLOODFILLBORDER) ) + { + // quoting from the MSDN docs: + // + // Following are some of the reasons this function might fail: + // + // * The filling could not be completed. + // * The specified point has the boundary color specified by the + // crColor parameter (if FLOODFILLBORDER was requested). + // * The specified point does not have the color specified by + // crColor (if FLOODFILLSURFACE was requested) + // * The point is outside the clipping region that is, it is not + // visible on the device. + // + wxLogLastError(wxT("ExtFloodFill")); + } CalcBoundingBox(x, y); } bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const { - // added by steve 29.12.94 (copied from DrawPoint) - // returns TRUE for pixels in the color of the current pen - // and FALSE for all other pixels colors - // if col is non-NULL return the color of the pixel +#ifdef __WXMICROWIN__ + if (!GetHDC()) return FALSE; +#endif + + wxCHECK_MSG( col, FALSE, _T("NULL colour parameter in wxDC::GetPixel") ); // get the color of the pixel COLORREF pixelcolor = ::GetPixel(GetHdc(), XLOG2DEV(x), YLOG2DEV(y)); - // get the color of the pen - COLORREF pencolor = 0x00ffffff; - if (m_pen.Ok()) - { - pencolor = m_pen.GetColour().GetPixel(); - } - // return the color of the pixel - if(col) - col->Set(GetRValue(pixelcolor),GetGValue(pixelcolor),GetBValue(pixelcolor)); + wxRGBToColour(*col, pixelcolor); - // check, if color of the pixels is the same as the color - // of the current pen - return(pixelcolor==pencolor); + return TRUE; } void wxDC::DoCrossHair(wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + wxCoord x1 = x-VIEWPORT_EXTENT; wxCoord y1 = y-VIEWPORT_EXTENT; wxCoord x2 = x+VIEWPORT_EXTENT; @@ -336,26 +498,42 @@ void wxDC::DoCrossHair(wxCoord x, wxCoord y) void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + (void)MoveToEx(GetHdc(), XLOG2DEV(x1), YLOG2DEV(y1), NULL); (void)LineTo(GetHdc(), XLOG2DEV(x2), YLOG2DEV(y2)); - /* MATTHEW: [6] New normalization */ -#if WX_STANDARD_GRAPHICS - (void)LineTo(GetHdc(), XLOG2DEV(x2) + 1, YLOG2DEV(y2)); -#endif + // Normalization: Windows doesn't draw the last point of the line. + // But apparently neither does GTK+, so we take it out again. +// (void)LineTo(GetHdc(), XLOG2DEV(x2) + 1, YLOG2DEV(y2)); CalcBoundingBox(x1, y1); CalcBoundingBox(x2, y2); } -void wxDC::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2, wxCoord xc, wxCoord yc) +// Draws an arc of a circle, centred on (xc, yc), with starting point (x1, y1) +// and ending at (x2, y2) +void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, + wxCoord x2, wxCoord y2, + wxCoord xc, wxCoord yc) { - double dx = xc-x1; - double dy = yc-y1; - double radius = (double)sqrt(dx*dx+dy*dy) ;; - if (x1==x2 && x2==y2) +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling + + double dx = xc - x1; + double dy = yc - y1; + double radius = (double)sqrt(dx*dx+dy*dy); + wxCoord r = (wxCoord)radius; + + // treat the special case of full circle separately + if ( x1 == x2 && y1 == y2 ) { - DrawEllipse(xc,yc,(wxCoord)(radius*2.0),(wxCoord)(radius*2.0)); + DrawEllipse(xc - r, yc - r, 2*r, 2*r); return; } @@ -367,31 +545,74 @@ void wxDC::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2, wxCoord xc, wx wxCoord yyc = YLOG2DEV(yc); wxCoord ray = (wxCoord) sqrt(double((xxc-xx1)*(xxc-xx1)+(yyc-yy1)*(yyc-yy1))); - (void)MoveToEx(GetHdc(), (int) xx1, (int) yy1, NULL); wxCoord xxx1 = (wxCoord) (xxc-ray); wxCoord yyy1 = (wxCoord) (yyc-ray); wxCoord xxx2 = (wxCoord) (xxc+ray); wxCoord yyy2 = (wxCoord) (yyc+ray); - if (m_brush.Ok() && m_brush.GetStyle() !=wxTRANSPARENT) + + if ( m_brush.Ok() && m_brush.GetStyle() != wxTRANSPARENT ) { // Have to add 1 to bottom-right corner of rectangle // to make semi-circles look right (crooked line otherwise). // Unfortunately this is not a reliable method, depends // on the size of shape. // TODO: figure out why this happens! - Pie(GetHdc(),xxx1,yyy1,xxx2+1,yyy2+1, - xx1,yy1,xx2,yy2); + Pie(GetHdc(),xxx1,yyy1,xxx2+1,yyy2+1, xx1,yy1,xx2,yy2); } else - Arc(GetHdc(),xxx1,yyy1,xxx2,yyy2, - xx1,yy1,xx2,yy2); + { + Arc(GetHdc(),xxx1,yyy1,xxx2,yyy2, xx1,yy1,xx2,yy2); + } + + CalcBoundingBox(xc - r, yc - r); + CalcBoundingBox(xc + r, yc + r); +} - CalcBoundingBox((wxCoord)(xc-radius), (wxCoord)(yc-radius)); - CalcBoundingBox((wxCoord)(xc+radius), (wxCoord)(yc+radius)); +void wxDC::DoDrawCheckMark(wxCoord x1, wxCoord y1, + wxCoord width, wxCoord height) +{ +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + wxCoord x2 = x1 + width, + y2 = y1 + height; + +#if defined(__WIN32__) && !defined(__SC__) && !defined(__WXMICROWIN__) + RECT rect; + rect.left = x1; + rect.top = y1; + rect.right = x2; + rect.bottom = y2; + + DrawFrameControl(GetHdc(), &rect, DFC_MENU, DFCS_MENUCHECK); +#else // Win16 + // In WIN16, draw a cross + HPEN blackPen = ::CreatePen(PS_SOLID, 1, RGB(0, 0, 0)); + HPEN whiteBrush = (HPEN)::GetStockObject(WHITE_BRUSH); + HPEN hPenOld = (HPEN)::SelectObject(GetHdc(), blackPen); + HPEN hBrushOld = (HPEN)::SelectObject(GetHdc(), whiteBrush); + ::SetROP2(GetHdc(), R2_COPYPEN); + Rectangle(GetHdc(), x1, y1, x2, y2); + MoveToEx(GetHdc(), x1, y1, NULL); + LineTo(GetHdc(), x2, y2); + MoveToEx(GetHdc(), x2, y1, NULL); + LineTo(GetHdc(), x1, y2); + ::SelectObject(GetHdc(), hPenOld); + ::SelectObject(GetHdc(), hBrushOld); + ::DeleteObject(blackPen); +#endif // Win32/16 + + CalcBoundingBox(x1, y1); + CalcBoundingBox(x2, y2); } void wxDC::DoDrawPoint(wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + COLORREF color = 0x00ffffff; if (m_pen.Ok()) { @@ -405,27 +626,11 @@ void wxDC::DoDrawPoint(wxCoord x, wxCoord y) void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle) { - COLORREF old_textground = ::GetTextColor(GetHdc()); - COLORREF old_background = ::GetBkColor(GetHdc()); - if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) - { - - if (m_textForegroundColour.Ok()) - { //just the oposite from what is expected see help on pattern brush - // 1 in mask becomes bk color - ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel() ); - } - if (m_textBackgroundColour.Ok()) - { //just the oposite from what is expected - // 0 in mask becomes text color - ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel() ); - } +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif - if (m_backgroundMode == wxTRANSPARENT) - SetBkMode(GetHdc(), TRANSPARENT); - else - SetBkMode(GetHdc(), OPAQUE); - } + wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling // Do things less efficiently if we have offsets if (xoffset != 0 || yoffset != 0) @@ -454,17 +659,14 @@ void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffs (void)Polygon(GetHdc(), (POINT*) points, n); SetPolyFillMode(GetHdc(),prev); } - - if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) - { - ::SetBkMode(GetHdc(), TRANSPARENT); - ::SetTextColor(GetHdc(), old_textground); - ::SetBkColor(GetHdc(), old_background); - } } void wxDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // Do things less efficiently if we have offsets if (xoffset != 0 || yoffset != 0) { @@ -492,79 +694,53 @@ void wxDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { - COLORREF old_textground = ::GetTextColor(GetHdc()); - COLORREF old_background = ::GetBkColor(GetHdc()); - if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) - { - - if (m_textForegroundColour.Ok()) - { //just the oposite from what is expected see help on pattern brush - // 1 in mask becomes bk color - ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel() ); - } - if (m_textBackgroundColour.Ok()) - { //just the oposite from what is expected - // 0 in mask becomes text color - ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel() ); - } +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif - if (m_backgroundMode == wxTRANSPARENT) - SetBkMode(GetHdc(), TRANSPARENT); - else - SetBkMode(GetHdc(), OPAQUE); - } + wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling wxCoord x2 = x + width; wxCoord y2 = y + height; - /* MATTHEW: [6] new normalization */ -#if WX_STANDARD_GRAPHICS - bool do_brush, do_pen; - - do_brush = m_brush.Ok() && m_brush.GetStyle() != wxTRANSPARENT; - do_pen = m_pen.Ok() && m_pen.GetStyle() != wxTRANSPARENT; - - if (do_brush) { - HPEN orig_pen = NULL; - - if (do_pen || !m_pen.Ok()) - orig_pen = (HPEN) ::SelectObject(GetHdc(), (HPEN) ::GetStockObject(NULL_PEN)); - - (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), - XLOG2DEV(x2) + 1, YLOG2DEV(y2) + 1); - - if (do_pen || !m_pen.Ok()) - ::SelectObject(GetHdc() , orig_pen); + if ((m_logicalFunction == wxCOPY) && (m_pen.GetStyle() == wxTRANSPARENT)) + { + RECT rect; + rect.left = XLOG2DEV(x); + rect.top = YLOG2DEV(y); + rect.right = XLOG2DEV(x2); + rect.bottom = YLOG2DEV(y2); + (void)FillRect(GetHdc(), &rect, (HBRUSH)m_brush.GetResourceHandle() ); } - if (do_pen) { - HBRUSH orig_brush = NULL; - - if (do_brush || !m_brush.Ok()) - orig_brush = (HBRUSH) ::SelectObject(GetHdc(), (HBRUSH) ::GetStockObject(NULL_BRUSH)); + else + { + // Windows draws the filled rectangles without outline (i.e. drawn with a + // transparent pen) one pixel smaller in both directions and we want them + // to have the same size regardless of which pen is used - adjust - (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), - XLOG2DEV(x2), YLOG2DEV(y2)); + // I wonder if this shouldn´t be done after the LOG2DEV() conversions. RR. + if ( m_pen.GetStyle() == wxTRANSPARENT ) + { + x2++; + y2++; + } - if (do_brush || !m_brush.Ok()) - ::SelectObject(GetHdc(), orig_brush); + (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2)); } -#else - (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2)); -#endif + CalcBoundingBox(x, y); CalcBoundingBox(x2, y2); - - if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) - { - ::SetBkMode(GetHdc(), TRANSPARENT); - ::SetTextColor(GetHdc(), old_textground); - ::SetBkColor(GetHdc(), old_background); - } } void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling + // Now, a negative radius value is interpreted to mean // 'the proportion of the smallest X or Y dimension' @@ -581,6 +757,15 @@ void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord h wxCoord x2 = (x+width); wxCoord y2 = (y+height); + // Windows draws the filled rectangles without outline (i.e. drawn with a + // transparent pen) one pixel smaller in both directions and we want them + // to have the same size regardless of which pen is used - adjust + if ( m_pen.GetStyle() == wxTRANSPARENT ) + { + x2++; + y2++; + } + (void)RoundRect(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2), (int) (2*XLOG2DEV(radius)), (int)( 2*YLOG2DEV(radius))); @@ -590,6 +775,12 @@ void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord h void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling + wxCoord x2 = (x+width); wxCoord y2 = (y+height); @@ -602,8 +793,14 @@ void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) // Chris Breeze 20/5/98: first implementation of DrawEllipticArc on Windows void wxDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea) { - wxCoord x2 = (x+w); - wxCoord y2 = (y+h); +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + + wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling + + wxCoord x2 = x + w; + wxCoord y2 = y + h; int rx1 = XLOG2DEV(x+w/2); int ry1 = YLOG2DEV(y+h/2); @@ -620,20 +817,22 @@ void wxDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,d // draw pie with NULL_PEN first and then outline otherwise a line is // drawn from the start and end points to the centre - HPEN orig_pen = (HPEN) ::SelectObject(GetHdc(), (HPEN) ::GetStockObject(NULL_PEN)); + HPEN hpenOld = (HPEN) ::SelectObject(GetHdc(), (HPEN) ::GetStockObject(NULL_PEN)); if (m_signY > 0) { (void)Pie(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2)+1, YLOG2DEV(y2)+1, - rx1, ry1, rx2, ry2); + rx1, ry1, rx2, ry2); } else { (void)Pie(GetHdc(), XLOG2DEV(x), YLOG2DEV(y)-1, XLOG2DEV(x2)+1, YLOG2DEV(y2), - rx1, ry1-1, rx2, ry2-1); + rx1, ry1-1, rx2, ry2-1); } - ::SelectObject(GetHdc(), orig_pen); + + ::SelectObject(GetHdc(), hpenOld); + (void)Arc(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2), - rx1, ry1, rx2, ry2); + rx1, ry1, rx2, ry2); CalcBoundingBox(x, y); CalcBoundingBox(x2, y2); @@ -641,9 +840,17 @@ void wxDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,d void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + wxCHECK_RET( icon.Ok(), wxT("invalid icon in DrawIcon") ); +#ifdef __WIN32__ + ::DrawIconEx(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), GetHiconOf(icon), icon.GetWidth(), icon.GetHeight(), 0, NULL, DI_NORMAL); +#else ::DrawIcon(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), GetHiconOf(icon)); +#endif CalcBoundingBox(x, y); CalcBoundingBox(x + icon.GetWidth(), y + icon.GetHeight()); @@ -651,12 +858,75 @@ void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask ) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxDC::DrawBitmap") ); int width = bmp.GetWidth(), height = bmp.GetHeight(); - if ( !useMask ) + HBITMAP hbmpMask = 0; + HPALETTE oldPal = 0; + + if ( useMask ) + { + wxMask *mask = bmp.GetMask(); + if ( mask ) + hbmpMask = (HBITMAP)mask->GetMaskBitmap(); + + if ( !hbmpMask ) + { + // don't give assert here because this would break existing + // programs - just silently ignore useMask parameter + useMask = FALSE; + } + } + + if ( useMask ) + { +#ifdef __WIN32__ + // use MaskBlt() with ROP which doesn't do anything to dst in the mask + // points + // On some systems, MaskBlt succeeds yet is much much slower + // than the wxWindows fall-back implementation. So we need + // to be able to switch this on and off at runtime. + bool ok = FALSE; +#if wxUSE_SYSTEM_OPTIONS + if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0) +#endif + { + HDC cdc = GetHdc(); + HDC hdcMem = ::CreateCompatibleDC(GetHdc()); + ::SelectObject(hdcMem, GetHbitmapOf(bmp)); + if (bmp.GetPalette() && (::GetDeviceCaps(cdc,BITSPIXEL) <= 8)) { + oldPal = ::SelectPalette( hdcMem, (HPALETTE)bmp.GetPalette()->GetHPALETTE(), FALSE); + ::RealizePalette(hdcMem); + } + ok = ::MaskBlt(cdc, x, y, width, height, + hdcMem, 0, 0, + hbmpMask, 0, 0, + MAKEROP4(SRCCOPY, DSTCOPY)) != 0; + if (oldPal) + ::SelectPalette(hdcMem, oldPal, FALSE); + ::DeleteDC(hdcMem); + } + + if ( !ok ) +#endif // Win32 + { + // Rather than reproduce wxDC::Blit, let's do it at the wxWin API + // level + wxMemoryDC memDC; + memDC.SelectObject(bmp); + + Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask); + + memDC.SelectObject(wxNullBitmap); + } + } + else // no mask, just use BitBlt() { HDC cdc = GetHdc(); HDC memdc = ::CreateCompatibleDC( cdc ); @@ -675,27 +945,27 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask ::SetBkColor(GetHdc(), m_textBackgroundColour.GetPixel() ); } + if (bmp.GetPalette() && (::GetDeviceCaps(cdc,BITSPIXEL) <= 8)) { + oldPal = ::SelectPalette( memdc, (HPALETTE)bmp.GetPalette()->GetHPALETTE(), FALSE); + ::RealizePalette(memdc); + } ::SelectObject( memdc, hbitmap ); ::BitBlt( cdc, x, y, width, height, memdc, 0, 0, SRCCOPY); + if (oldPal) + ::SelectPalette(memdc, oldPal, FALSE); ::DeleteDC( memdc ); ::SetTextColor(GetHdc(), old_textground); ::SetBkColor(GetHdc(), old_background); } - else - { - // Rather than reproduce wxDC::Blit, let's do it at the wxWin API level - wxMemoryDC memDC; - memDC.SelectObject(bmp); - - Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask); - - memDC.SelectObject(wxNullBitmap); - } } void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + DrawAnyText(text, x, y); // update the bounding box @@ -708,6 +978,10 @@ void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y) void wxDC::DrawAnyText(const wxString& text, wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // prepare for drawing the text if ( m_textForegroundColour.Ok() ) SetTextColor(GetHdc(), m_textForegroundColour.GetPixel()); @@ -724,7 +998,7 @@ void wxDC::DrawAnyText(const wxString& text, wxCoord x, wxCoord y) if ( ::TextOut(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), text.c_str(), text.length()) == 0 ) { - wxLogLastError("TextOut"); + wxLogLastError(wxT("TextOut")); } // restore the old parameters (text foreground colour may be left because @@ -740,6 +1014,10 @@ void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // we test that we have some font because otherwise we should still use the // "else" part below to avoid that DrawRotatedText(angle = 180) and // DrawRotatedText(angle = 0) use different fonts (we can't use the default @@ -748,16 +1026,18 @@ void wxDC::DoDrawRotatedText(const wxString& text, { DoDrawText(text, x, y); } +#ifndef __WXMICROWIN__ else { - // NB: don't take DEFAULT_GUI_FONT because it's not TrueType and so - // can't have non zero orientation/escapement - wxFont font = m_font.Ok() ? m_font : *wxNORMAL_FONT; + // NB: don't take DEFAULT_GUI_FONT (a.k.a. wxSYS_DEFAULT_GUI_FONT) + // because it's not TrueType and so can't have non zero + // orientation/escapement under Win9x + wxFont font = m_font.Ok() ? m_font : *wxSWISS_FONT; HFONT hfont = (HFONT)font.GetResourceHandle(); LOGFONT lf; if ( ::GetObject(hfont, sizeof(lf), &lf) == 0 ) { - wxLogLastError("GetObject(hfont)"); + wxLogLastError(wxT("GetObject(hfont)")); } // GDI wants the angle in tenth of degree @@ -768,7 +1048,7 @@ void wxDC::DoDrawRotatedText(const wxString& text, hfont = ::CreateFontIndirect(&lf); if ( !hfont ) { - wxLogLastError("CreateFont"); + wxLogLastError(wxT("CreateFont")); } else { @@ -777,6 +1057,7 @@ void wxDC::DoDrawRotatedText(const wxString& text, DrawAnyText(text, x, y); (void)::SelectObject(GetHdc(), hfontOld); + (void)::DeleteObject(hfont); } // call the bounding box by adding all four vertices of the rectangle @@ -797,19 +1078,26 @@ void wxDC::DoDrawRotatedText(const wxString& text, CalcBoundingBox(x, y); CalcBoundingBox(x + h*sin(rad), y + h*cos(rad)); } +#endif } // --------------------------------------------------------------------------- // set GDI objects // --------------------------------------------------------------------------- +#if wxUSE_PALETTE + void wxDC::SetPalette(const wxPalette& palette) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // Set the old object temporarily, in case the assignment deletes an object // that's not yet selected out. if (m_oldPalette) { - ::SelectPalette(GetHdc(), (HPALETTE) m_oldPalette, TRUE); + ::SelectPalette(GetHdc(), (HPALETTE) m_oldPalette, FALSE); m_oldPalette = 0; } @@ -821,7 +1109,7 @@ void wxDC::SetPalette(const wxPalette& palette) // the original colourmap if (m_oldPalette) { - ::SelectPalette(GetHdc(), (HPALETTE) m_oldPalette, TRUE); + ::SelectPalette(GetHdc(), (HPALETTE) m_oldPalette, FALSE); m_oldPalette = 0; } @@ -830,7 +1118,7 @@ void wxDC::SetPalette(const wxPalette& palette) if (m_palette.Ok() && m_palette.GetHPALETTE()) { - HPALETTE oldPal = ::SelectPalette(GetHdc(), (HPALETTE) m_palette.GetHPALETTE(), TRUE); + HPALETTE oldPal = ::SelectPalette(GetHdc(), (HPALETTE) m_palette.GetHPALETTE(), FALSE); if (!m_oldPalette) m_oldPalette = (WXHPALETTE) oldPal; @@ -838,8 +1126,14 @@ void wxDC::SetPalette(const wxPalette& palette) } } +#endif // wxUSE_PALETTE + void wxDC::SetFont(const wxFont& the_font) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // Set the old object temporarily, in case the assignment deletes an object // that's not yet selected out. if (m_oldFont) @@ -871,6 +1165,10 @@ void wxDC::SetFont(const wxFont& the_font) void wxDC::SetPen(const wxPen& pen) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // Set the old object temporarily, in case the assignment deletes an object // that's not yet selected out. if (m_oldPen) @@ -901,6 +1199,10 @@ void wxDC::SetPen(const wxPen& pen) void wxDC::SetBrush(const wxBrush& brush) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + // Set the old object temporarily, in case the assignment deletes an object // that's not yet selected out. if (m_oldBrush) @@ -920,7 +1222,23 @@ void wxDC::SetBrush(const wxBrush& brush) if (m_brush.Ok()) { - if (m_brush.GetResourceHandle()) + // to make sure the brush is alligned with the logical coordinates + wxBitmap *stipple = m_brush.GetStipple(); + if ( stipple && stipple->Ok() ) + { +#ifdef __WIN32__ + ::SetBrushOrgEx(GetHdc(), + m_deviceOriginX % stipple->GetWidth(), + m_deviceOriginY % stipple->GetHeight(), + NULL); // don't need previous brush origin +#else + ::SetBrushOrg(GetHdc(), + m_deviceOriginX % stipple->GetWidth(), + m_deviceOriginY % stipple->GetHeight()); +#endif + } + + if ( m_brush.GetResourceHandle() ) { HBRUSH b = 0; b = (HBRUSH) ::SelectObject(GetHdc(), (HBRUSH)m_brush.GetResourceHandle()); @@ -932,6 +1250,10 @@ void wxDC::SetBrush(const wxBrush& brush) void wxDC::SetBackground(const wxBrush& brush) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_backgroundBrush = brush; if (!m_backgroundBrush.Ok()) @@ -973,6 +1295,10 @@ void wxDC::SetBackground(const wxBrush& brush) void wxDC::SetBackgroundMode(int mode) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_backgroundMode = mode; // SetBackgroundColour now only refers to text background @@ -983,47 +1309,56 @@ void wxDC::SetBackgroundMode(int mode) ::SetBkMode(GetHdc(), TRANSPARENT); else ::SetBkMode(GetHdc(), OPAQUE); + Last change: AC 29 Jan 101 8:54 pm */ } void wxDC::SetLogicalFunction(int function) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_logicalFunction = function; - SetRop((WXHDC) m_hDC); + SetRop(m_hDC); } void wxDC::SetRop(WXHDC dc) { - if (!dc || m_logicalFunction < 0) + if ( !dc || m_logicalFunction < 0 ) return; - int c_rop; - // These may be wrong + int rop; + switch (m_logicalFunction) { - // case wxXOR: c_rop = R2_XORPEN; break; - case wxXOR: c_rop = R2_NOTXORPEN; break; - case wxINVERT: c_rop = R2_NOT; break; - case wxOR_REVERSE: c_rop = R2_MERGEPENNOT; break; - case wxAND_REVERSE: c_rop = R2_MASKPENNOT; break; - case wxCLEAR: c_rop = R2_WHITE; break; - case wxSET: c_rop = R2_BLACK; break; - case wxSRC_INVERT: c_rop = R2_NOTCOPYPEN; break; - case wxOR_INVERT: c_rop = R2_MERGENOTPEN; break; - case wxAND: c_rop = R2_MASKPEN; break; - case wxOR: c_rop = R2_MERGEPEN; break; - case wxAND_INVERT: c_rop = R2_MASKNOTPEN; break; - case wxEQUIV: - case wxNAND: - case wxCOPY: - default: - c_rop = R2_COPYPEN; break; + case wxCLEAR: rop = R2_BLACK; break; + case wxXOR: rop = R2_XORPEN; break; + case wxINVERT: rop = R2_NOT; break; + case wxOR_REVERSE: rop = R2_MERGEPENNOT; break; + case wxAND_REVERSE: rop = R2_MASKPENNOT; break; + case wxCOPY: rop = R2_COPYPEN; break; + case wxAND: rop = R2_MASKPEN; break; + case wxAND_INVERT: rop = R2_MASKNOTPEN; break; + case wxNO_OP: rop = R2_NOP; break; + case wxNOR: rop = R2_NOTMERGEPEN; break; + case wxEQUIV: rop = R2_NOTXORPEN; break; + case wxSRC_INVERT: rop = R2_NOTCOPYPEN; break; + case wxOR_INVERT: rop = R2_MERGENOTPEN; break; + case wxNAND: rop = R2_NOTMASKPEN; break; + case wxOR: rop = R2_MERGEPEN; break; + case wxSET: rop = R2_WHITE; break; + + default: + wxFAIL_MSG( wxT("unsupported logical function") ); + return; } - SetROP2((HDC) dc, c_rop); + + SetROP2(GetHdc(), rop); } -bool wxDC::StartDoc(const wxString& message) +bool wxDC::StartDoc(const wxString& WXUNUSED(message)) { // We might be previewing, so return TRUE to let it continue. return TRUE; @@ -1047,6 +1382,10 @@ void wxDC::EndPage() wxCoord wxDC::GetCharHeight() const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return 0; +#endif + TEXTMETRIC lpTextMetric; GetTextMetrics(GetHdc(), &lpTextMetric); @@ -1056,6 +1395,10 @@ wxCoord wxDC::GetCharHeight() const wxCoord wxDC::GetCharWidth() const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return 0; +#endif + TEXTMETRIC lpTextMetric; GetTextMetrics(GetHdc(), &lpTextMetric); @@ -1065,26 +1408,54 @@ wxCoord wxDC::GetCharWidth() const void wxDC::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, - wxFont *theFont) const + wxFont *font) const { - wxFont *fontToUse = (wxFont*) theFont; - if (!fontToUse) - fontToUse = (wxFont*) &m_font; +#ifdef __WXMICROWIN__ + if (!GetHDC()) + { + if (x) *x = 0; + if (y) *y = 0; + if (descent) *descent = 0; + if (externalLeading) *externalLeading = 0; + return; + } +#endif + + HFONT hfontOld; + if ( font ) + { + wxASSERT_MSG( font->Ok(), _T("invalid font in wxDC::GetTextExtent") ); + + hfontOld = (HFONT)::SelectObject(GetHdc(), GetHfontOf(*font)); + } + else // don't change the font + { + hfontOld = 0; + } SIZE sizeRect; TEXTMETRIC tm; - GetTextExtentPoint(GetHdc(), WXSTRINGCAST string, wxStrlen(WXSTRINGCAST string), &sizeRect); + GetTextExtentPoint(GetHdc(), string, string.length(), &sizeRect); GetTextMetrics(GetHdc(), &tm); if (x) *x = XDEV2LOGREL(sizeRect.cx); if (y) *y = YDEV2LOGREL(sizeRect.cy); if (descent) *descent = tm.tmDescent; if (externalLeading) *externalLeading = tm.tmExternalLeading; + + if ( hfontOld ) + { + ::SelectObject(GetHdc(), hfontOld); + } } void wxDC::SetMapMode(int mode) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_mappingMode = mode; int pixel_width = 0; @@ -1153,6 +1524,10 @@ void wxDC::SetMapMode(int mode) void wxDC::SetUserScale(double x, double y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_userScaleX = x; m_userScaleY = y; @@ -1161,6 +1536,10 @@ void wxDC::SetUserScale(double x, double y) void wxDC::SetAxisOrientation(bool xLeftRight, bool yBottomUp) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_signX = xLeftRight ? 1 : -1; m_signY = yBottomUp ? -1 : 1; @@ -1169,6 +1548,10 @@ void wxDC::SetAxisOrientation(bool xLeftRight, bool yBottomUp) void wxDC::SetSystemScale(double x, double y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_scaleX = x; m_scaleY = y; @@ -1177,6 +1560,10 @@ void wxDC::SetSystemScale(double x, double y) void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_logicalOriginX = x; m_logicalOriginY = y; @@ -1185,6 +1572,10 @@ void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y) void wxDC::SetDeviceOrigin(wxCoord x, wxCoord y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_deviceOriginX = x; m_deviceOriginY = y; @@ -1197,7 +1588,9 @@ void wxDC::SetDeviceOrigin(wxCoord x, wxCoord y) wxCoord wxDCBase::DeviceToLogicalX(wxCoord x) const { - return (wxCoord) (((x) - m_deviceOriginX)/(m_logicalScaleX*m_userScaleX*m_signX*m_scaleX) - m_logicalOriginX); + double xRel = x - m_deviceOriginX; + xRel /= m_logicalScaleX*m_userScaleX*m_signX*m_scaleX; + return (wxCoord)(xRel + m_logicalOriginX); } wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const @@ -1207,7 +1600,9 @@ wxCoord wxDCBase::DeviceToLogicalXRel(wxCoord x) const wxCoord wxDCBase::DeviceToLogicalY(wxCoord y) const { - return (wxCoord) (((y) - m_deviceOriginY)/(m_logicalScaleY*m_userScaleY*m_signY*m_scaleY) - m_logicalOriginY); + double yRel = y - m_deviceOriginY; + yRel /= m_logicalScaleY*m_userScaleY*m_signY*m_scaleY; + return (wxCoord)(yRel + m_logicalOriginY); } wxCoord wxDCBase::DeviceToLogicalYRel(wxCoord y) const @@ -1242,16 +1637,30 @@ wxCoord wxDCBase::LogicalToDeviceYRel(wxCoord y) const bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, - int rop, bool useMask) + int rop, bool useMask, + wxCoord xsrcMask, wxCoord ysrcMask) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return FALSE; +#endif + wxMask *mask = NULL; if ( useMask ) { const wxBitmap& bmp = source->m_selectedBitmap; mask = bmp.GetMask(); - wxCHECK_MSG( bmp.Ok() && mask, FALSE, - _T("can't blit with mask without mask") ); + if ( !(bmp.Ok() && mask && mask->GetMaskBitmap()) ) + { + // don't give assert here because this would break existing + // programs - just silently ignore useMask parameter + useMask = FALSE; + } + } + + if (xsrcMask == -1 && ysrcMask == -1) + { + xsrcMask = xsrc; ysrcMask = ysrc; } COLORREF old_textground = ::GetTextColor(GetHdc()); @@ -1265,43 +1674,79 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, ::SetBkColor(GetHdc(), m_textBackgroundColour.GetPixel() ); } - DWORD dwRop = rop == wxCOPY ? SRCCOPY : - rop == wxCLEAR ? WHITENESS : - rop == wxSET ? BLACKNESS : - rop == wxINVERT ? DSTINVERT : - rop == wxAND ? MERGECOPY : - rop == wxOR ? MERGEPAINT : - rop == wxSRC_INVERT ? NOTSRCCOPY : - rop == wxXOR ? SRCINVERT : - rop == wxOR_REVERSE ? MERGEPAINT : - rop == wxAND_REVERSE ? SRCERASE : - rop == wxSRC_OR ? SRCPAINT : - rop == wxSRC_AND ? SRCAND : - SRCCOPY; + DWORD dwRop = SRCCOPY; + switch (rop) + { + case wxXOR: dwRop = SRCINVERT; break; + case wxINVERT: dwRop = DSTINVERT; break; + case wxOR_REVERSE: dwRop = 0x00DD0228; break; + case wxAND_REVERSE: dwRop = SRCERASE; break; + case wxCLEAR: dwRop = BLACKNESS; break; + case wxSET: dwRop = WHITENESS; break; + case wxOR_INVERT: dwRop = MERGEPAINT; break; + case wxAND: dwRop = SRCAND; break; + case wxOR: dwRop = SRCPAINT; break; + case wxEQUIV: dwRop = 0x00990066; break; + case wxNAND: dwRop = 0x007700E6; break; + case wxAND_INVERT: dwRop = 0x00220326; break; + case wxCOPY: dwRop = SRCCOPY; break; + case wxNO_OP: dwRop = DSTCOPY; break; + case wxSRC_INVERT: dwRop = NOTSRCCOPY; break; + case wxNOR: dwRop = NOTSRCCOPY; break; + default: + wxFAIL_MSG( wxT("unsupported logical function") ); + return FALSE; + } - bool success; + bool success = FALSE; if (useMask) { #ifdef __WIN32__ - if ( ::MaskBlt(GetHdc(), xdest, ydest, - (int)width, (int)height, - GetHdcOf(*source), xsrc, ysrc, - (HBITMAP) mask->GetMaskBitmap(), - 0, 0, MAKEROP4(SRCCOPY, PATCOPY)) != 0 ) + // we want the part of the image corresponding to the mask to be + // transparent, so use "DSTCOPY" ROP for the mask points (the usual + // meaning of fg and bg is inverted which corresponds to wxWin notion + // of the mask which is also contrary to the Windows one) + + // On some systems, MaskBlt succeeds yet is much much slower + // than the wxWindows fall-back implementation. So we need + // to be able to switch this on and off at runtime. +#if wxUSE_SYSTEM_OPTIONS + if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0) +#endif { - // Success - success = TRUE; + success = ::MaskBlt(GetHdc(), xdest, ydest, width, height, + GetHdcOf(*source), xsrc, ysrc, + (HBITMAP)mask->GetMaskBitmap(), xsrcMask, ysrcMask, + MAKEROP4(dwRop, DSTCOPY)) != 0; } - else + + if ( !success ) #endif // Win32 { // Blit bitmap with mask + HDC dc_mask ; + HDC dc_buffer ; + HBITMAP buffer_bmap ; +#if wxUSE_DC_CACHEING // create a temp buffer bitmap and DCs to access it and the mask - HDC dc_mask = ::CreateCompatibleDC(GetHdcOf(*source)); - HDC dc_buffer = ::CreateCompatibleDC(GetHdc()); - HBITMAP buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), width, height); + wxDCCacheEntry* dcCacheEntry1 = FindDCInCache(NULL, source->GetHDC()); + dc_mask = (HDC) dcCacheEntry1->m_dc; + + wxDCCacheEntry* dcCacheEntry2 = FindDCInCache(dcCacheEntry1, GetHDC()); + dc_buffer = (HDC) dcCacheEntry2->m_dc; + + wxDCCacheEntry* bitmapCacheEntry = FindBitmapInCache(GetHDC(), + width, height); + + buffer_bmap = (HBITMAP) bitmapCacheEntry->m_bitmap; +#else // !wxUSE_DC_CACHEING + // create a temp buffer bitmap and DCs to access it and the mask + dc_mask = ::CreateCompatibleDC(GetHdcOf(*source)); + dc_buffer = ::CreateCompatibleDC(GetHdc()); + buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), width, height); +#endif // wxUSE_DC_CACHEING/!wxUSE_DC_CACHEING ::SelectObject(dc_mask, (HBITMAP) mask->GetMaskBitmap()); ::SelectObject(dc_buffer, buffer_bmap); @@ -1309,32 +1754,32 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height, GetHdc(), xdest, ydest, SRCCOPY) ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } // copy src to buffer using selected raster op if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height, GetHdcOf(*source), xsrc, ysrc, dwRop) ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } // set masked area in buffer to BLACK (pixel value 0) COLORREF prevBkCol = ::SetBkColor(GetHdc(), RGB(255, 255, 255)); COLORREF prevCol = ::SetTextColor(GetHdc(), RGB(0, 0, 0)); if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height, - dc_mask, xsrc, ysrc, SRCAND) ) + dc_mask, xsrcMask, ysrcMask, SRCAND) ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } // set unmasked area in dest to BLACK ::SetBkColor(GetHdc(), RGB(0, 0, 0)); ::SetTextColor(GetHdc(), RGB(255, 255, 255)); if ( !::BitBlt(GetHdc(), xdest, ydest, (int)width, (int)height, - dc_mask, xsrc, ysrc, SRCAND) ) + dc_mask, xsrcMask, ysrcMask, SRCAND) ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } ::SetBkColor(GetHdc(), prevBkCol); // restore colours to original values ::SetTextColor(GetHdc(), prevCol); @@ -1345,15 +1790,20 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, dc_buffer, 0, 0, SRCPAINT) != 0; if ( !success ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } // tidy up temporary DCs and bitmap ::SelectObject(dc_mask, 0); - ::DeleteDC(dc_mask); ::SelectObject(dc_buffer, 0); - ::DeleteDC(dc_buffer); - ::DeleteObject(buffer_bmap); + +#if !wxUSE_DC_CACHEING + { + ::DeleteDC(dc_mask); + ::DeleteDC(dc_buffer); + ::DeleteObject(buffer_bmap); + } +#endif } } else // no mask, just BitBlt() it @@ -1363,10 +1813,9 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, GetHdcOf(*source), xsrc, ysrc, dwRop) != 0; if ( !success ) { - wxLogLastError("BitBlt"); + wxLogLastError(wxT("BitBlt")); } } - ::SetTextColor(GetHdc(), old_textground); ::SetBkColor(GetHdc(), old_background); @@ -1375,18 +1824,30 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, void wxDC::DoGetSize(int *w, int *h) const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + if ( w ) *w = ::GetDeviceCaps(GetHdc(), HORZRES); if ( h ) *h = ::GetDeviceCaps(GetHdc(), VERTRES); } void wxDC::DoGetSizeMM(int *w, int *h) const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + if ( w ) *w = ::GetDeviceCaps(GetHdc(), HORZSIZE); if ( h ) *h = ::GetDeviceCaps(GetHdc(), VERTSIZE); } wxSize wxDC::GetPPI() const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return wxSize(); +#endif + int x = ::GetDeviceCaps(GetHdc(), LOGPIXELSX); int y = ::GetDeviceCaps(GetHdc(), LOGPIXELSY); @@ -1396,6 +1857,10 @@ wxSize wxDC::GetPPI() const // For use by wxWindows only, unless custom units are required. void wxDC::SetLogicalScale(double x, double y) { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + m_logicalScaleX = x; m_logicalScaleY = y; } @@ -1405,6 +1870,10 @@ void wxDC::DoGetTextExtent(const wxString& string, float *x, float *y, float *descent, float *externalLeading, wxFont *theFont, bool use16bit) const { +#ifdef __WXMICROWIN__ + if (!GetHDC()) return; +#endif + wxCoord x1, y1, descent1, externalLeading1; GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit); *x = x1; *y = y1; @@ -1415,239 +1884,141 @@ void wxDC::DoGetTextExtent(const wxString& string, float *x, float *y, } #endif -// --------------------------------------------------------------------------- -// spline drawing code -// --------------------------------------------------------------------------- - -#if wxUSE_SPLINES - -class wxSpline: public wxObject -{ -public: - int type; - wxList *points; - - wxSpline(wxList *list); - void DeletePoints(); - - // Doesn't delete points - ~wxSpline(); -}; +#if wxUSE_DC_CACHEING -void wx_draw_open_spline(wxDC *dc, wxSpline *spline); +/* + * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will + * improve it in due course, either using arrays, or simply storing pointers to one + * entry for the bitmap, and two for the DCs. -- JACS + */ -void wx_quadratic_spline(double a1, double b1, double a2, double b2, - double a3, double b3, double a4, double b4); -void wx_clear_stack(); -int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3, - double *y3, double *x4, double *y4); -void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, - double x4, double y4); -static bool wx_spline_add_point(double x, double y); -static void wx_spline_draw_point_array(wxDC *dc); -wxSpline *wx_make_spline(int x1, int y1, int x2, int y2, int x3, int y3); +wxList wxDC::sm_bitmapCache; +wxList wxDC::sm_dcCache; -void wxDC::DoDrawSpline(wxList *list) +wxDCCacheEntry::wxDCCacheEntry(WXHBITMAP hBitmap, int w, int h, int depth) { - wxSpline spline(list); - - wx_draw_open_spline(this, &spline); + m_bitmap = hBitmap; + m_dc = 0; + m_width = w; + m_height = h; + m_depth = depth; } -wxList wx_spline_point_list; - -void wx_draw_open_spline(wxDC *dc, wxSpline *spline) +wxDCCacheEntry::wxDCCacheEntry(WXHDC hDC, int depth) { - wxPoint *p; - double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4; - double x1, y1, x2, y2; - - wxNode *node = spline->points->First(); - p = (wxPoint *)node->Data(); - - x1 = p->x; - y1 = p->y; - - node = node->Next(); - p = (wxPoint *)node->Data(); - - x2 = p->x; - y2 = p->y; - cx1 = (double)((x1 + x2) / 2); - cy1 = (double)((y1 + y2) / 2); - cx2 = (double)((cx1 + x2) / 2); - cy2 = (double)((cy1 + y2) / 2); - - wx_spline_add_point(x1, y1); - - while ((node = node->Next()) != NULL) - { - p = (wxPoint *)node->Data(); - x1 = x2; - y1 = y2; - x2 = p->x; - y2 = p->y; - cx4 = (double)(x1 + x2) / 2; - cy4 = (double)(y1 + y2) / 2; - cx3 = (double)(x1 + cx4) / 2; - cy3 = (double)(y1 + cy4) / 2; - - wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4); - - cx1 = cx4; - cy1 = cy4; - cx2 = (double)(cx1 + x2) / 2; - cy2 = (double)(cy1 + y2) / 2; - } - - wx_spline_add_point((double)wx_round(cx1), (double)wx_round(cy1)); - wx_spline_add_point(x2, y2); - - wx_spline_draw_point_array(dc); - + m_bitmap = 0; + m_dc = hDC; + m_width = 0; + m_height = 0; + m_depth = depth; } -/********************* CURVES FOR SPLINES ***************************** - - The following spline drawing routine is from - - "An Algorithm for High-Speed Curve Generation" - by George Merrill Chaikin, - Computer Graphics and Image Processing, 3, Academic Press, - 1974, 346-349. - - and - - "On Chaikin's Algorithm" by R. F. Riesenfeld, - Computer Graphics and Image Processing, 4, Academic Press, - 1975, 304-310. - -***********************************************************************/ - -#define half(z1, z2) ((z1+z2)/2.0) -#define THRESHOLD 5 - -/* iterative version */ - -void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4, - double b4) +wxDCCacheEntry::~wxDCCacheEntry() { - register double xmid, ymid; - double x1, y1, x2, y2, x3, y3, x4, y4; - - wx_clear_stack(); - wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4); - - while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) { - xmid = (double)half(x2, x3); - ymid = (double)half(y2, y3); - if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD && - fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) { - wx_spline_add_point((double)wx_round(x1), (double)wx_round(y1)); - wx_spline_add_point((double)wx_round(xmid), (double)wx_round(ymid)); - } else { - wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3), - (double)half(x3, x4), (double)half(y3, y4), x4, y4); - wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2), - (double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid); - } - } + if (m_bitmap) + ::DeleteObject((HBITMAP) m_bitmap); + if (m_dc) + ::DeleteDC((HDC) m_dc); } +wxDCCacheEntry* wxDC::FindBitmapInCache(WXHDC dc, int w, int h) +{ + int depth = ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL); + wxNode* node = sm_bitmapCache.First(); + while (node) + { + wxDCCacheEntry* entry = (wxDCCacheEntry*) node->Data(); -/* utilities used by spline drawing routines */ - + if (entry->m_depth == depth) + { + if (entry->m_width < w || entry->m_height < h) + { + ::DeleteObject((HBITMAP) entry->m_bitmap); + entry->m_bitmap = (WXHBITMAP) ::CreateCompatibleBitmap((HDC) dc, w, h); + if ( !entry->m_bitmap) + { + wxLogLastError(wxT("CreateCompatibleBitmap")); + } + entry->m_width = w; entry->m_height = h; + return entry; + } + return entry; + } -typedef struct wx_spline_stack_struct { - double x1, y1, x2, y2, x3, y3, x4, y4; + node = node->Next(); + } + WXHBITMAP hBitmap = (WXHBITMAP) ::CreateCompatibleBitmap((HDC) dc, w, h); + if ( !hBitmap) + { + wxLogLastError(wxT("CreateCompatibleBitmap")); + } + wxDCCacheEntry* entry = new wxDCCacheEntry(hBitmap, w, h, depth); + AddToBitmapCache(entry); + return entry; } -Stack; - -#define SPLINE_STACK_DEPTH 20 -static Stack wx_spline_stack[SPLINE_STACK_DEPTH]; -static Stack *wx_stack_top; -static int wx_stack_count; -void wx_clear_stack() +wxDCCacheEntry* wxDC::FindDCInCache(wxDCCacheEntry* notThis, WXHDC dc) { - wx_stack_top = wx_spline_stack; - wx_stack_count = 0; -} + int depth = ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL); + wxNode* node = sm_dcCache.First(); + while (node) + { + wxDCCacheEntry* entry = (wxDCCacheEntry*) node->Data(); -void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4) -{ - wx_stack_top->x1 = x1; - wx_stack_top->y1 = y1; - wx_stack_top->x2 = x2; - wx_stack_top->y2 = y2; - wx_stack_top->x3 = x3; - wx_stack_top->y3 = y3; - wx_stack_top->x4 = x4; - wx_stack_top->y4 = y4; - wx_stack_top++; - wx_stack_count++; -} + // Don't return the same one as we already have + if (!notThis || (notThis != entry)) + { + if (entry->m_depth == depth) + { + return entry; + } + } -int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, - double *x3, double *y3, double *x4, double *y4) -{ - if (wx_stack_count == 0) - return (0); - wx_stack_top--; - wx_stack_count--; - *x1 = wx_stack_top->x1; - *y1 = wx_stack_top->y1; - *x2 = wx_stack_top->x2; - *y2 = wx_stack_top->y2; - *x3 = wx_stack_top->x3; - *y3 = wx_stack_top->y3; - *x4 = wx_stack_top->x4; - *y4 = wx_stack_top->y4; - return (1); + node = node->Next(); + } + WXHDC hDC = (WXHDC) ::CreateCompatibleDC((HDC) dc); + if ( !hDC) + { + wxLogLastError(wxT("CreateCompatibleDC")); + } + wxDCCacheEntry* entry = new wxDCCacheEntry(hDC, depth); + AddToDCCache(entry); + return entry; } -static bool wx_spline_add_point(double x, double y) +void wxDC::AddToBitmapCache(wxDCCacheEntry* entry) { - wxPoint *point = new wxPoint; - point->x = (int) x; - point->y = (int) y; - wx_spline_point_list.Append((wxObject*)point); - return TRUE; + sm_bitmapCache.Append(entry); } -static void wx_spline_draw_point_array(wxDC *dc) +void wxDC::AddToDCCache(wxDCCacheEntry* entry) { - dc->DrawLines(&wx_spline_point_list, 0, 0); - wxNode *node = wx_spline_point_list.First(); - while (node) - { - wxPoint *point = (wxPoint *)node->Data(); - delete point; - delete node; - node = wx_spline_point_list.First(); - } + sm_dcCache.Append(entry); } -wxSpline::wxSpline(wxList *list) +void wxDC::ClearCache() { - points = list; + sm_bitmapCache.DeleteContents(TRUE); + sm_bitmapCache.Clear(); + sm_bitmapCache.DeleteContents(FALSE); + sm_dcCache.DeleteContents(TRUE); + sm_dcCache.Clear(); + sm_dcCache.DeleteContents(FALSE); } -wxSpline::~wxSpline() +// Clean up cache at app exit +class wxDCModule : public wxModule { -} +public: + virtual bool OnInit() { return TRUE; } + virtual void OnExit() { wxDC::ClearCache(); } -void wxSpline::DeletePoints() -{ - for(wxNode *node = points->First(); node; node = points->First()) - { - wxPoint *point = (wxPoint *)node->Data(); - delete point; - delete node; - } - delete points; -} +private: + DECLARE_DYNAMIC_CLASS(wxDCModule) +}; +IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule) -#endif // wxUSE_SPLINES +#endif + // wxUSE_DC_CACHEING