X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/eb72e9aa28d47f0ee3da6ab0881a639d1c55c499..e56fee472c0a59f9b1d45c84a8439e37a1f9925d:/src/msw/dc.cpp diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp index 848d6b7258..4945615624 100644 --- a/src/msw/dc.cpp +++ b/src/msw/dc.cpp @@ -34,6 +34,7 @@ #include "wx/bitmap.h" #include "wx/dcmemory.h" #include "wx/log.h" + #include "wx/math.h" #include "wx/icon.h" #include "wx/dcprint.h" #include "wx/module.h" @@ -44,14 +45,15 @@ #include "wx/dynlib.h" #ifdef wxHAS_RAW_BITMAP -#include "wx/rawbmp.h" + #include "wx/rawbmp.h" #endif #include -#ifndef __WIN32__ - #include -#endif +#include "wx/msw/private/dc.h" +#include "wx/private/textmeasure.h" + +using namespace wxMSWImpl; #ifndef AC_SRC_ALPHA #define AC_SRC_ALPHA 1 @@ -82,7 +84,9 @@ IMPLEMENT_ABSTRACT_CLASS(wxMSWDCImpl, wxDCImpl) // constants // --------------------------------------------------------------------------- -static const int VIEWPORT_EXTENT = 1000; +// The device space in Win32 GDI measures 2^27*2^27 , so we use 2^27-1 as the +// maximal possible view port extent. +static const int VIEWPORT_EXTENT = 134217727; // 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) @@ -145,122 +149,25 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst, #endif // wxHAS_RAW_BITMAP -// ---------------------------------------------------------------------------- -// private classes -// ---------------------------------------------------------------------------- - -// various classes to change some DC property temporarily - -// text background and foreground colours -class wxTextColoursChanger +namespace wxMSW { -public: - wxTextColoursChanger(HDC hdc, const wxMSWDCImpl& dc) - : m_hdc(hdc) - { - Change(dc.GetTextForeground(), dc.GetTextBackground()); - } - wxTextColoursChanger(HDC hdc, const wxColour& colFg, const wxColour& colBg) - : m_hdc(hdc) - { - Change(colFg, colBg); - } +// Wrappers for the dynamically loaded {Set,Get}Layout() functions. They work +// in exactly the same way as the standard functions and return GDI_ERROR if +// they're not actually available. +DWORD GetLayout(HDC hdc); +DWORD SetLayout(HDC hdc, DWORD dwLayout); - ~wxTextColoursChanger() - { - if ( m_oldColFg != CLR_INVALID ) - ::SetTextColor(m_hdc, m_oldColFg); - if ( m_oldColBg != CLR_INVALID ) - ::SetBkColor(m_hdc, m_oldColBg); - } +// Create a compatible HDC and copy the layout of the source DC to it. This is +// necessary in order to draw bitmaps (which are usually blitted from a +// temporary compatible memory DC to the real target DC) using the same layout. +HDC CreateCompatibleDCWithLayout(HDC hdc); -protected: - // this ctor doesn't change mode immediately, call Change() later to do it - // only if needed - wxTextColoursChanger(HDC hdc) - : m_hdc(hdc) - { - m_oldColFg = - m_oldColBg = CLR_INVALID; - } - - void Change(const wxColour& colFg, const wxColour& colBg) - { - if ( colFg.IsOk() ) - { - m_oldColFg = ::SetTextColor(m_hdc, colFg.GetPixel()); - if ( m_oldColFg == CLR_INVALID ) - { - wxLogLastError(_T("SetTextColor")); - } - } - else - { - m_oldColFg = CLR_INVALID; - } +} // namespace wxMSW - if ( colBg.IsOk() ) - { - m_oldColBg = ::SetBkColor(m_hdc, colBg.GetPixel()); - if ( m_oldColBg == CLR_INVALID ) - { - wxLogLastError(_T("SetBkColor")); - } - } - else - { - m_oldColBg = CLR_INVALID; - } - } - -private: - const HDC m_hdc; - COLORREF m_oldColFg, - m_oldColBg; - - wxDECLARE_NO_COPY_CLASS(wxTextColoursChanger); -}; - -// background mode -class wxBkModeChanger -{ -public: - // set background mode to opaque if mode != wxBRUSHSTYLE_TRANSPARENT - wxBkModeChanger(HDC hdc, int mode) - : m_hdc(hdc) - { - Change(mode); - } - - ~wxBkModeChanger() - { - if ( m_oldMode ) - ::SetBkMode(m_hdc, m_oldMode); - } - -protected: - // this ctor doesn't change mode immediately, call Change() later to do it - // only if needed - wxBkModeChanger(HDC hdc) : m_hdc(hdc) { m_oldMode = 0; } - - void Change(int mode) - { - m_oldMode = ::SetBkMode(m_hdc, mode == wxBRUSHSTYLE_TRANSPARENT - ? TRANSPARENT - : OPAQUE); - if ( !m_oldMode ) - { - wxLogLastError(_T("SetBkMode")); - } - } - -private: - const HDC m_hdc; - int m_oldMode; - - wxDECLARE_NO_COPY_CLASS(wxBkModeChanger); -}; +// ---------------------------------------------------------------------------- +// 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, @@ -278,27 +185,35 @@ private: wxDECLARE_NO_COPY_CLASS(wxBrushAttrsSetter); }; -// this class saves the old stretch blit mode during its life time +#ifdef __WXWINCE__ + +#define SET_STRETCH_BLT_MODE(hdc) + +#else // !__WXWINCE__ + +// this class sets the stretch blit mode to COLORONCOLOR during its lifetime +// +// don't use it directly, use SET_STRETCH_BLT_MODE() macro instead as it +// expands to nothing under WinCE which doesn't have SetStretchBltMode() class StretchBltModeChanger { public: - StretchBltModeChanger(HDC hdc, - int WXUNUSED_IN_WINCE(mode)) + StretchBltModeChanger(HDC hdc) : m_hdc(hdc) { -#ifndef __WXWINCE__ - m_modeOld = ::SetStretchBltMode(m_hdc, mode); + m_modeOld = ::SetStretchBltMode(m_hdc, COLORONCOLOR); if ( !m_modeOld ) - wxLogLastError(_T("SetStretchBltMode")); -#endif + { + wxLogLastError(wxT("SetStretchBltMode")); + } } ~StretchBltModeChanger() { -#ifndef __WXWINCE__ if ( !::SetStretchBltMode(m_hdc, m_modeOld) ) - wxLogLastError(_T("SetStretchBltMode")); -#endif + { + wxLogLastError(wxT("SetStretchBltMode")); + } } private: @@ -309,6 +224,11 @@ private: wxDECLARE_NO_COPY_CLASS(StretchBltModeChanger); }; +#define SET_STRETCH_BLT_MODE(hdc) \ + StretchBltModeChanger wxMAKE_UNIQUE_NAME(stretchModeChanger)(hdc) + +#endif // __WXWINCE__/!__WXWINCE__ + #if wxUSE_DYNLIB_CLASS // helper class to cache dynamically loaded libraries and not attempt reloading @@ -355,7 +275,7 @@ private: const wxChar *m_dllName; }; -static wxOnceOnlyDLLLoader wxMSIMG32DLL(_T("msimg32")); +static wxOnceOnlyDLLLoader wxMSIMG32DLL(wxT("msimg32")); // we must ensure that DLLs are unloaded before the static objects cleanup time // because we may hit the notorious DllMain() dead lock in this case if wx is @@ -373,6 +293,98 @@ private: IMPLEMENT_DYNAMIC_CLASS(wxGDIDLLsCleanupModule, wxModule) +namespace +{ + +#if wxUSE_DC_TRANSFORM_MATRIX + +// Class used to dynamically load world transform related API functions. +class GdiWorldTransformFuncs +{ +public: + static bool IsOk() + { + if ( !ms_worldTransformSymbolsLoaded ) + LoadWorldTransformSymbols(); + + return ms_pfnSetGraphicsMode && + ms_pfnSetWorldTransform && + ms_pfnGetWorldTransform && + ms_pfnModifyWorldTransform; + } + + typedef int (WINAPI *SetGraphicsMode_t)(HDC, int); + static SetGraphicsMode_t SetGraphicsMode() + { + if ( !ms_worldTransformSymbolsLoaded ) + LoadWorldTransformSymbols(); + + return ms_pfnSetGraphicsMode; + } + + typedef BOOL (WINAPI *SetWorldTransform_t)(HDC, const XFORM *); + static SetWorldTransform_t SetWorldTransform() + { + if ( !ms_worldTransformSymbolsLoaded ) + LoadWorldTransformSymbols(); + + return ms_pfnSetWorldTransform; + } + + typedef BOOL (WINAPI *GetWorldTransform_t)(HDC, LPXFORM); + static GetWorldTransform_t GetWorldTransform() + { + if ( !ms_worldTransformSymbolsLoaded ) + LoadWorldTransformSymbols(); + + return ms_pfnGetWorldTransform; + } + + typedef BOOL (WINAPI *ModifyWorldTransform_t)(HDC, const XFORM *, DWORD); + static ModifyWorldTransform_t ModifyWorldTransform() + { + if ( !ms_worldTransformSymbolsLoaded ) + LoadWorldTransformSymbols(); + + return ms_pfnModifyWorldTransform; + } + +private: + static void LoadWorldTransformSymbols() + { + wxDynamicLibrary dll(wxT("gdi32.dll")); + + wxDL_INIT_FUNC(ms_pfn, SetGraphicsMode, dll); + wxDL_INIT_FUNC(ms_pfn, SetWorldTransform, dll); + wxDL_INIT_FUNC(ms_pfn, GetWorldTransform, dll); + wxDL_INIT_FUNC(ms_pfn, ModifyWorldTransform, dll); + + ms_worldTransformSymbolsLoaded = true; + } + + static SetGraphicsMode_t ms_pfnSetGraphicsMode; + static SetWorldTransform_t ms_pfnSetWorldTransform; + static GetWorldTransform_t ms_pfnGetWorldTransform; + static ModifyWorldTransform_t ms_pfnModifyWorldTransform; + + static bool ms_worldTransformSymbolsLoaded; +}; + +GdiWorldTransformFuncs::SetGraphicsMode_t + GdiWorldTransformFuncs::ms_pfnSetGraphicsMode = NULL; +GdiWorldTransformFuncs::SetWorldTransform_t + GdiWorldTransformFuncs::ms_pfnSetWorldTransform = NULL; +GdiWorldTransformFuncs::GetWorldTransform_t + GdiWorldTransformFuncs::ms_pfnGetWorldTransform = NULL; +GdiWorldTransformFuncs::ModifyWorldTransform_t + GdiWorldTransformFuncs::ms_pfnModifyWorldTransform = NULL; + +bool GdiWorldTransformFuncs::ms_worldTransformSymbolsLoaded = false; + +#endif // wxUSE_DC_TRANSFORM_MATRIX + +} // anonymous namespace + #endif // wxUSE_DYNLIB_CLASS // =========================================================================== @@ -568,7 +580,7 @@ void wxMSWDCImpl::SetClippingHrgn(WXHRGN hrgn) #else // !WinCE if ( ::ExtSelectClipRgn(GetHdc(), (HRGN)hrgn, RGN_AND) == ERROR ) { - wxLogLastError(_T("ExtSelectClipRgn")); + wxLogLastError(wxT("ExtSelectClipRgn")); return; } @@ -591,7 +603,7 @@ void wxMSWDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h LogicalToDeviceY(y + h)); if ( !hrgn ) { - wxLogLastError(_T("CreateRectRgn")); + wxLogLastError(wxT("CreateRectRgn")); } else { @@ -741,7 +753,7 @@ bool wxMSWDCImpl::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const { WXMICROWIN_CHECK_HDC_RET(false) - wxCHECK_MSG( col, false, _T("NULL colour parameter in wxMSWDCImpl::GetPixel") ); + wxCHECK_MSG( col, false, wxT("NULL colour parameter in wxMSWDCImpl::GetPixel") ); // get the color of the pixel COLORREF pixelcolor = ::GetPixel(GetHdc(), XLOG2DEV(x), YLOG2DEV(y)); @@ -823,7 +835,7 @@ void wxMSWDCImpl::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord xxx2 = (wxCoord) (xxc+ray); wxCoord yyy2 = (wxCoord) (yyc+ray); - if ( m_brush.IsOk() && m_brush.GetStyle() != wxBRUSHSTYLE_TRANSPARENT ) + if ( m_brush.IsNonTransparent() ) { // Have to add 1 to bottom-right corner of rectangle // to make semi-circles look right (crooked line otherwise). @@ -885,7 +897,7 @@ void wxMSWDCImpl::DoDrawPoint(wxCoord x, wxCoord y) } void wxMSWDCImpl::DoDrawPolygon(int n, - wxPoint points[], + const wxPoint points[], wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode WXUNUSED_IN_WINCE(fillStyle)) @@ -933,8 +945,8 @@ void wxMSWDCImpl::DoDrawPolygon(int n, void wxMSWDCImpl::DoDrawPolyPolygon(int n, - int count[], - wxPoint points[], + const int count[], + const wxPoint points[], wxCoord xoffset, wxCoord yoffset, wxPolygonFillMode fillStyle) @@ -986,7 +998,7 @@ wxMSWDCImpl::DoDrawPolyPolygon(int n, // __WXWINCE__ } -void wxMSWDCImpl::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset) +void wxMSWDCImpl::DoDrawLines(int n, const wxPoint points[], wxCoord xoffset, wxCoord yoffset) { WXMICROWIN_CHECK_HDC @@ -1031,7 +1043,7 @@ void wxMSWDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord h // (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 #ifndef __WXWINCE__ - if ( m_pen.IsOk() && m_pen.GetStyle() == wxPENSTYLE_TRANSPARENT ) + if ( m_pen.IsTransparent() ) { x2dev++; y2dev++; @@ -1065,7 +1077,7 @@ void wxMSWDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wx // 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() == wxPENSTYLE_TRANSPARENT ) + if ( m_pen.IsTransparent() ) { x2++; y2++; @@ -1148,11 +1160,11 @@ void wxMSWDCImpl::DoDrawSpline(const wxPointList *points) lppt[ bezier_pos ] = lppt[ bezier_pos-1 ]; bezier_pos++; -#if !wxUSE_STL +#if !wxUSE_STD_CONTAINERS while ((node = node->GetNext()) != NULL) #else while ((node = node->GetNext())) -#endif // !wxUSE_STL +#endif // !wxUSE_STD_CONTAINERS { p = (wxPoint *)node->GetData(); x1 = x2; @@ -1274,7 +1286,7 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool { WXMICROWIN_CHECK_HDC - wxCHECK_RET( bmp.IsOk(), _T("invalid bitmap in wxMSWDCImpl::DrawBitmap") ); + wxCHECK_RET( bmp.IsOk(), wxT("invalid bitmap in wxMSWDCImpl::DrawBitmap") ); int width = bmp.GetWidth(), height = bmp.GetHeight(); @@ -1294,9 +1306,7 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool return; } -#ifndef __WXWINCE__ - StretchBltModeChanger changeMode(GetHdc(), COLORONCOLOR); -#endif + SET_STRETCH_BLT_MODE(GetHdc()); if ( useMask ) { @@ -1316,16 +1326,23 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool #ifdef __WIN32__ // use MaskBlt() with ROP which doesn't do anything to dst in the mask // points + bool ok = false; + +#if wxUSE_SYSTEM_OPTIONS // On some systems, MaskBlt succeeds yet is much much slower // than the wxWidgets 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 + // + // NB: don't query the value of the option every time but do it only + // once as otherwise it can have real (and bad) performance + // implications (see #11172) + static bool + s_maskBltAllowed = wxSystemOptions::GetOptionInt("no-maskblt") == 0; + if ( s_maskBltAllowed ) +#endif // wxUSE_SYSTEM_OPTIONS { HDC cdc = GetHdc(); - HDC hdcMem = ::CreateCompatibleDC(GetHdc()); + HDC hdcMem = wxMSW::CreateCompatibleDCWithLayout(cdc); HGDIOBJ hOldBitmap = ::SelectObject(hdcMem, GetHbitmapOf(bmp)); #if wxUSE_PALETTE wxPalette *pal = bmp.GetPalette(); @@ -1357,17 +1374,16 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool // level wxMemoryDC memDC; + memDC.SetLayoutDirection(GetLayoutDirection()); memDC.SelectObjectAsSource(bmp); GetOwner()->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 ); + HDC memdc = wxMSW::CreateCompatibleDCWithLayout( cdc ); HBITMAP hbitmap = (HBITMAP) bmp.GetHBITMAP( ); wxASSERT_MSG( hbitmap, wxT("bitmap is ok but HBITMAP is NULL?") ); @@ -1398,6 +1414,18 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool void wxMSWDCImpl::DoDrawText(const wxString& text, wxCoord x, wxCoord y) { + // For compatibility with other ports (notably wxGTK) and because it's + // genuinely useful, we allow passing multiline strings to DrawText(). + // However there is no native MSW function to draw them directly so we + // instead reuse the generic DrawLabel() method to render them. Of course, + // DrawLabel() itself will call back to us but with single line strings + // only so there won't be any infinite recursion here. + if ( text.find('\n') != wxString::npos ) + { + GetOwner()->DrawLabel(text, wxRect(x, y, 0, 0)); + return; + } + WXMICROWIN_CHECK_HDC DrawAnyText(text, x, y); @@ -1571,7 +1599,7 @@ void wxMSWDCImpl::SetFont(const wxFont& font) HGDIOBJ hfont = ::SelectObject(GetHdc(), GetHfontOf(font)); if ( hfont == HGDI_ERROR ) { - wxLogLastError(_T("SelectObject(font)")); + wxLogLastError(wxT("SelectObject(font)")); } else // selected ok { @@ -1587,7 +1615,7 @@ void wxMSWDCImpl::SetFont(const wxFont& font) { if ( ::SelectObject(GetHdc(), (HPEN) m_oldFont) == HGDI_ERROR ) { - wxLogLastError(_T("SelectObject(old font)")); + wxLogLastError(wxT("SelectObject(old font)")); } m_oldFont = 0; @@ -1609,7 +1637,7 @@ void wxMSWDCImpl::SetPen(const wxPen& pen) HGDIOBJ hpen = ::SelectObject(GetHdc(), GetHpenOf(pen)); if ( hpen == HGDI_ERROR ) { - wxLogLastError(_T("SelectObject(pen)")); + wxLogLastError(wxT("SelectObject(pen)")); } else // selected ok { @@ -1625,7 +1653,7 @@ void wxMSWDCImpl::SetPen(const wxPen& pen) { if ( ::SelectObject(GetHdc(), (HPEN) m_oldPen) == HGDI_ERROR ) { - wxLogLastError(_T("SelectObject(old pen)")); + wxLogLastError(wxT("SelectObject(old pen)")); } m_oldPen = 0; @@ -1645,26 +1673,33 @@ void wxMSWDCImpl::SetBrush(const wxBrush& brush) if ( brush.IsOk() ) { // we must make sure the brush is aligned with the logical coordinates - // before selecting it + // before selecting it or using the same brush for the background of + // different windows would result in discontinuities + wxSize sizeBrushBitmap = wxDefaultSize; wxBitmap *stipple = brush.GetStipple(); if ( stipple && stipple->IsOk() ) + sizeBrushBitmap = stipple->GetSize(); + else if ( brush.IsHatch() ) + sizeBrushBitmap = wxSize(8, 8); + + if ( sizeBrushBitmap.IsFullySpecified() ) { if ( !::SetBrushOrgEx ( GetHdc(), - m_deviceOriginX % stipple->GetWidth(), - m_deviceOriginY % stipple->GetHeight(), + m_deviceOriginX % sizeBrushBitmap.x, + m_deviceOriginY % sizeBrushBitmap.y, NULL // [out] previous brush origin ) ) { - wxLogLastError(_T("SetBrushOrgEx()")); + wxLogLastError(wxT("SetBrushOrgEx()")); } } HGDIOBJ hbrush = ::SelectObject(GetHdc(), GetHbrushOf(brush)); if ( hbrush == HGDI_ERROR ) { - wxLogLastError(_T("SelectObject(brush)")); + wxLogLastError(wxT("SelectObject(brush)")); } else // selected ok { @@ -1680,7 +1715,7 @@ void wxMSWDCImpl::SetBrush(const wxBrush& brush) { if ( ::SelectObject(GetHdc(), (HPEN) m_oldBrush) == HGDI_ERROR ) { - wxLogLastError(_T("SelectObject(old brush)")); + wxLogLastError(wxT("SelectObject(old brush)")); } m_oldBrush = 0; @@ -1798,6 +1833,31 @@ wxCoord wxMSWDCImpl::GetCharWidth() const return lpTextMetric.tmAveCharWidth; } +void wxMSWDCImpl::DoGetFontMetrics(int *height, + int *ascent, + int *descent, + int *internalLeading, + int *externalLeading, + int *averageWidth) const +{ + TEXTMETRIC tm; + + GetTextMetrics(GetHdc(), &tm); + + if ( height ) + *height = tm.tmHeight; + if ( ascent ) + *ascent = tm.tmAscent; + if ( descent ) + *descent = tm.tmDescent; + if ( internalLeading ) + *internalLeading = tm.tmInternalLeading; + if ( externalLeading ) + *externalLeading = tm.tmExternalLeading; + if ( averageWidth ) + *averageWidth = tm.tmAveCharWidth; +} + void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, const wxFont *font) const @@ -1813,113 +1873,44 @@ void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y } #endif // __WXMICROWIN__ - HFONT hfontOld; - if ( font ) - { - wxASSERT_MSG( font->IsOk(), _T("invalid font in wxMSWDCImpl::GetTextExtent") ); - - hfontOld = (HFONT)::SelectObject(GetHdc(), GetHfontOf(*font)); - } - else // don't change the font - { - hfontOld = 0; - } - - SIZE sizeRect; - const size_t len = string.length(); - if ( !::GetTextExtentPoint32(GetHdc(), string.wx_str(), len, &sizeRect) ) - { - wxLogLastError(_T("GetTextExtentPoint32()")); - } - -#if !defined(_WIN32_WCE) || (_WIN32_WCE >= 400) - // the result computed by GetTextExtentPoint32() may be too small as it - // accounts for under/overhang of the first/last character while we want - // just the bounding rect for this string so adjust the width as needed - // (using API not available in 2002 SDKs of WinCE) - if ( len > 0 ) - { - ABC width; - const wxChar chFirst = *string.begin(); - if ( ::GetCharABCWidths(GetHdc(), chFirst, chFirst, &width) ) - { - if ( width.abcA < 0 ) - sizeRect.cx -= width.abcA; - - if ( len > 1 ) - { - const wxChar chLast = *string.rbegin(); - ::GetCharABCWidths(GetHdc(), chLast, chLast, &width); - } - //else: we already have the width of the last character - - if ( width.abcC < 0 ) - sizeRect.cx -= width.abcC; - } - //else: GetCharABCWidths() failed, not a TrueType font? - } -#endif // !defined(_WIN32_WCE) || (_WIN32_WCE >= 400) - - TEXTMETRIC tm; - ::GetTextMetrics(GetHdc(), &tm); - - if (x) - *x = sizeRect.cx; - if (y) - *y = sizeRect.cy; - if (descent) - *descent = tm.tmDescent; - if (externalLeading) - *externalLeading = tm.tmExternalLeading; + wxASSERT_MSG( !font || font->IsOk(), wxT("invalid font in wxMSWDCImpl::GetTextExtent") ); - if ( hfontOld ) - { - ::SelectObject(GetHdc(), hfontOld); - } + wxTextMeasure txm(GetOwner(), font); + txm.GetTextExtent(string, x, y, descent, externalLeading); } -// Each element of the array will be the width of the string up to and -// including the coresoponding character in text. - bool wxMSWDCImpl::DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const { - static int maxLenText = -1; - static int maxWidth = -1; - int fit = 0; - SIZE sz = {0,0}; - int stlen = text.length(); + wxTextMeasure txm(GetOwner(), NULL); // don't change the font + return txm.GetPartialTextExtents(text, widths, 1.0); +} - if (maxLenText == -1) - { - // Win9x and WinNT+ have different limits - int version = wxGetOsVersion(); - maxLenText = version == wxOS_WINDOWS_NT ? 65535 : 8192; - maxWidth = version == wxOS_WINDOWS_NT ? INT_MAX : 32767; - } +namespace +{ - widths.Empty(); - widths.Add(0, stlen); // fill the array with zeros - if (stlen == 0) - return true; +void ApplyEffectiveScale(double scale, int sign, int *device, int *logical) +{ + // To reduce rounding errors as much as possible, we try to use the largest + // possible extent (2^27-1) for the device space but we must also avoid + // overflowing the int range i.e. ensure that logical extents are less than + // 2^31 in magnitude. So the minimal scale we can use is 1/16 as for + // anything smaller VIEWPORT_EXTENT/scale would overflow the int range. + static const double MIN_LOGICAL_SCALE = 1./16; - if (!::GetTextExtentExPoint(GetHdc(), - text.c_str(), // string to check - wxMin(stlen, maxLenText), - maxWidth, - &fit, // [out] count of chars - // that will fit - &widths[0], // array to fill - &sz)) - { - // API failed - wxLogLastError(wxT("GetTextExtentExPoint")); - return false; + double physExtent = VIEWPORT_EXTENT; + if ( scale < MIN_LOGICAL_SCALE ) + { + physExtent *= scale/MIN_LOGICAL_SCALE; + scale = MIN_LOGICAL_SCALE; } - return true; + *device = wxRound(physExtent); + *logical = sign*wxRound(VIEWPORT_EXTENT/scale); } +} // anonymous namespace + void wxMSWDCImpl::RealizeScaleAndOrigin() { // although it may seem wasteful to always use MM_ANISOTROPIC here instead @@ -1928,11 +1919,18 @@ void wxMSWDCImpl::RealizeScaleAndOrigin() #ifndef __WXWINCE__ ::SetMapMode(GetHdc(), MM_ANISOTROPIC); - int width = DeviceToLogicalXRel(VIEWPORT_EXTENT)*m_signX, - height = DeviceToLogicalYRel(VIEWPORT_EXTENT)*m_signY; + // wxWidgets API assumes that the coordinate space is "infinite" (i.e. only + // limited by 2^32 range of the integer coordinates) but in MSW API we must + // actually specify the extents that we use so compute them here. + + int devExtX, devExtY, // Viewport, i.e. device space, extents. + logExtX, logExtY; // Window, i.e. logical coordinate space, extents. - ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL); - ::SetWindowExtEx(GetHdc(), width, height, NULL); + ApplyEffectiveScale(m_scaleX, m_signX, &devExtX, &logExtX); + ApplyEffectiveScale(m_scaleY, m_signY, &devExtY, &logExtY); + + ::SetViewportExtEx(GetHdc(), devExtX, devExtY, NULL); + ::SetWindowExtEx(GetHdc(), logExtX, logExtY, NULL); ::SetViewportOrgEx(GetHdc(), m_deviceOriginX, m_deviceOriginY, NULL); ::SetWindowOrgEx(GetHdc(), m_logicalOriginX, m_logicalOriginY, NULL); @@ -1989,7 +1987,7 @@ void wxMSWDCImpl::SetMapMode(wxMappingMode mode) break; default: - wxFAIL_MSG( _T("unknown mapping mode in SetMapMode") ); + wxFAIL_MSG( wxT("unknown mapping mode in SetMapMode") ); } } @@ -2058,6 +2056,87 @@ void wxMSWDCImpl::SetDeviceOrigin(wxCoord x, wxCoord y) ::SetViewportOrgEx(GetHdc(), (int)m_deviceOriginX, (int)m_deviceOriginY, NULL); } +// ---------------------------------------------------------------------------- +// Transform matrix +// ---------------------------------------------------------------------------- + +#if wxUSE_DC_TRANSFORM_MATRIX + +bool wxMSWDCImpl::CanUseTransformMatrix() const +{ + return GdiWorldTransformFuncs::IsOk(); +} + +bool wxMSWDCImpl::SetTransformMatrix(const wxAffineMatrix2D &matrix) +{ + if ( !GdiWorldTransformFuncs::IsOk() ) + return false; + + if ( matrix.IsIdentity() ) + { + ResetTransformMatrix(); + return true; + } + + if ( !GdiWorldTransformFuncs::SetGraphicsMode()(GetHdc(), GM_ADVANCED) ) + { + wxLogLastError(wxT("SetGraphicsMode")); + return false; + } + + wxMatrix2D mat; + wxPoint2DDouble tr; + matrix.Get(&mat, &tr); + + XFORM xform; + xform.eM11 = mat.m_11; + xform.eM12 = mat.m_12; + xform.eM21 = mat.m_21; + xform.eM22 = mat.m_22; + xform.eDx = tr.m_x; + xform.eDy = tr.m_y; + + if ( !GdiWorldTransformFuncs::SetWorldTransform()(GetHdc(), &xform) ) + { + wxLogLastError(wxT("SetWorldTransform")); + return false; + } + + return true; +} + +wxAffineMatrix2D wxMSWDCImpl::GetTransformMatrix() const +{ + wxAffineMatrix2D transform; + + if ( !GdiWorldTransformFuncs::IsOk() ) + return transform; + + XFORM xform; + if ( !GdiWorldTransformFuncs::GetWorldTransform()(GetHdc(), &xform) ) + { + wxLogLastError(wxT("GetWorldTransform")); + return transform; + } + + wxMatrix2D m(xform.eM11, xform.eM12, xform.eM21, xform.eM22); + wxPoint2DDouble p(xform.eDx, xform.eDy); + transform.Set(m, p); + + return transform; +} + +void wxMSWDCImpl::ResetTransformMatrix() +{ + if ( GdiWorldTransformFuncs::IsOk() ) + { + GdiWorldTransformFuncs::ModifyWorldTransform()(GetHdc(), NULL, MWT_IDENTITY); + GdiWorldTransformFuncs::SetGraphicsMode()(GetHdc(), GM_COMPATIBLE); + } +} + +#endif // wxUSE_DC_TRANSFORM_MATRIX + // --------------------------------------------------------------------------- // bit blit // --------------------------------------------------------------------------- @@ -2080,7 +2159,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, wxRasterOperationMode rop, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask) { - wxCHECK_MSG( source, false, _T("wxMSWDCImpl::Blit(): NULL wxDC pointer") ); + wxCHECK_MSG( source, false, wxT("wxMSWDCImpl::Blit(): NULL wxDC pointer") ); WXMICROWIN_CHECK_HDC_RET(false) @@ -2162,7 +2241,8 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, // than the wxWidgets 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) + static bool s_maskBltAllowed = wxSystemOptions::GetOptionInt("no-maskblt") == 0; + if ( s_maskBltAllowed ) #endif { if ( dstWidth == srcWidth && dstHeight == srcHeight ) @@ -2202,8 +2282,8 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, 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(hdcSrc); - dc_buffer = ::CreateCompatibleDC(GetHdc()); + dc_mask = wxMSW::CreateCompatibleDCWithLayout(hdcSrc); + dc_buffer = wxMSW::CreateCompatibleDCWithLayout(GetHdc()); buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), dstWidth, dstHeight); #endif // wxUSE_DC_CACHEING/!wxUSE_DC_CACHEING HGDIOBJ hOldMaskBitmap = ::SelectObject(dc_mask, (HBITMAP) mask->GetMaskBitmap()); @@ -2216,9 +2296,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, wxLogLastError(wxT("BitBlt")); } -#ifndef __WXWINCE__ - StretchBltModeChanger changeMode(dc_buffer, COLORONCOLOR); -#endif + SET_STRETCH_BLT_MODE(GetHdc()); // copy src to buffer using selected raster op if ( !::StretchBlt(dc_buffer, 0, 0, dstWidth, dstHeight, @@ -2286,7 +2364,18 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, sizeof(ds), &ds) == sizeof(ds) ) { - StretchBltModeChanger changeMode(GetHdc(), COLORONCOLOR); + SET_STRETCH_BLT_MODE(GetHdc()); + + // Unlike all the other functions used here (i.e. AlphaBlt(), + // MaskBlt(), BitBlt() and StretchBlt()), StretchDIBits() does + // not take into account the source DC logical coordinates + // automatically as it doesn't even work with the source HDC. + // So do this manually to ensure that the coordinates are + // interpreted in the same way here as in all the other cases. + xsrc = source->LogicalToDeviceX(xsrc); + ysrc = source->LogicalToDeviceY(ysrc); + srcWidth = source->LogicalToDeviceXRel(srcWidth); + srcHeight = source->LogicalToDeviceYRel(srcHeight); // Figure out what co-ordinate system we're supposed to specify // ysrc in. @@ -2325,9 +2414,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, #endif // __WXWINCE__ { -#ifndef __WXWINCE__ - StretchBltModeChanger changeMode(GetHdc(), COLORONCOLOR); -#endif + SET_STRETCH_BLT_MODE(GetHdc()); if ( !::StretchBlt ( @@ -2338,7 +2425,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, dwRop ) ) { - wxLogLastError(_T("StretchBlt")); + wxLogLastError(wxT("StretchBlt")); } else { @@ -2351,7 +2438,7 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, if ( !::BitBlt(GetHdc(), xdest, ydest, dstWidth, dstHeight, hdcSrc, xsrc, ysrc, dwRop) ) { - wxLogLastError(_T("BitBlt")); + wxLogLastError(wxT("BitBlt")); } else { @@ -2388,7 +2475,7 @@ void wxMSWDCImpl::DoGetSizeMM(int *w, int *h) const { int wTotal = ::GetDeviceCaps(GetHdc(), HORZRES); - wxCHECK_RET( wTotal, _T("0 width device?") ); + wxCHECK_RET( wTotal, wxT("0 width device?") ); *w = (wPixels * ::GetDeviceCaps(GetHdc(), HORZSIZE)) / wTotal; } @@ -2397,7 +2484,7 @@ void wxMSWDCImpl::DoGetSizeMM(int *w, int *h) const { int hTotal = ::GetDeviceCaps(GetHdc(), VERTRES); - wxCHECK_RET( hTotal, _T("0 height device?") ); + wxCHECK_RET( hTotal, wxT("0 height device?") ); *h = (hPixels * ::GetDeviceCaps(GetHdc(), VERTSIZE)) / hTotal; } @@ -2509,7 +2596,7 @@ wxDCCacheEntry* wxMSWDCImpl::FindDCInCache(wxDCCacheEntry* notThis, WXHDC dc) node = node->GetNext(); } - WXHDC hDC = (WXHDC) ::CreateCompatibleDC((HDC) dc); + WXHDC hDC = (WXHDC) wxMSW::CreateCompatibleDCWithLayout((HDC) dc); if ( !hDC) { wxLogLastError(wxT("CreateCompatibleDC")); @@ -2561,8 +2648,8 @@ static bool AlphaBlt(HDC hdcDst, HDC hdcSrc, const wxBitmap& bmp) { - wxASSERT_MSG( bmp.IsOk() && bmp.HasAlpha(), _T("AlphaBlt(): invalid bitmap") ); - wxASSERT_MSG( hdcDst && hdcSrc, _T("AlphaBlt(): invalid HDC") ); + wxASSERT_MSG( bmp.IsOk() && bmp.HasAlpha(), wxT("AlphaBlt(): invalid bitmap") ); + wxASSERT_MSG( hdcDst && hdcSrc, wxT("AlphaBlt(): invalid HDC") ); // do we have AlphaBlend() and company in the headers? #if defined(AC_SRC_OVER) && wxUSE_DYNLIB_CLASS @@ -2572,7 +2659,7 @@ static bool AlphaBlt(HDC hdcDst, BLENDFUNCTION); static AlphaBlend_t - pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(_T("AlphaBlend")); + pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(wxT("AlphaBlend")); if ( pfnAlphaBlend ) { BLENDFUNCTION bf; @@ -2589,7 +2676,7 @@ static bool AlphaBlt(HDC hdcDst, return true; } - wxLogLastError(_T("AlphaBlend")); + wxLogLastError(wxT("AlphaBlend")); } #else wxUnusedVar(hdcSrc); @@ -2627,7 +2714,7 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst, if ( !::BitBlt(hdcMem, 0, 0, dstWidth, dstHeight, hdcDst, xDst, yDst, SRCCOPY) ) { - wxLogLastError(_T("BitBlt")); + wxLogLastError(wxT("BitBlt")); } // combine them with the source bitmap using alpha @@ -2635,7 +2722,7 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst, dataSrc((wxBitmap &)bmpSrc); wxCHECK_RET( dataDst && dataSrc, - _T("failed to get raw data in wxAlphaBlend") ); + wxT("failed to get raw data in wxAlphaBlend") ); wxAlphaPixelData::Iterator pDst(dataDst), pSrc(dataSrc); @@ -2669,7 +2756,7 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst, // and finally blit them back to the destination DC if ( !::BitBlt(hdcDst, xDst, yDst, dstWidth, dstHeight, hdcMem, 0, 0, SRCCOPY) ) { - wxLogLastError(_T("BitBlt")); + wxLogLastError(wxT("BitBlt")); } } @@ -2687,7 +2774,7 @@ void wxMSWDCImpl::DoGradientFillLinear (const wxRect& rect, typedef BOOL (WINAPI *GradientFill_t)(HDC, PTRIVERTEX, ULONG, PVOID, ULONG, ULONG); static GradientFill_t pfnGradientFill = - (GradientFill_t)wxMSIMG32DLL.GetSymbol(_T("GradientFill")); + (GradientFill_t)wxMSIMG32DLL.GetSymbol(wxT("GradientFill")); if ( pfnGradientFill ) { @@ -2732,7 +2819,7 @@ void wxMSWDCImpl::DoGradientFillLinear (const wxRect& rect, return; } - wxLogLastError(_T("GradientFill")); + wxLogLastError(wxT("GradientFill")); } #endif // wxUSE_DYNLIB_CLASS @@ -2741,20 +2828,47 @@ void wxMSWDCImpl::DoGradientFillLinear (const wxRect& rect, #if wxUSE_DYNLIB_CLASS -static DWORD wxGetDCLayout(HDC hdc) +namespace wxMSW +{ + +DWORD GetLayout(HDC hdc) { typedef DWORD (WINAPI *GetLayout_t)(HDC); static GetLayout_t - wxDL_INIT_FUNC(s_pfn, GetLayout, wxDynamicLibrary(_T("gdi32.dll"))); + wxDL_INIT_FUNC(s_pfn, GetLayout, wxDynamicLibrary(wxT("gdi32.dll"))); + + return s_pfnGetLayout ? s_pfnGetLayout(hdc) : GDI_ERROR; +} + +DWORD SetLayout(HDC hdc, DWORD dwLayout) +{ + typedef DWORD (WINAPI *SetLayout_t)(HDC, DWORD); + static SetLayout_t + wxDL_INIT_FUNC(s_pfn, SetLayout, wxDynamicLibrary(wxT("gdi32.dll"))); + + return s_pfnSetLayout ? s_pfnSetLayout(hdc, dwLayout) : GDI_ERROR; +} + +HDC CreateCompatibleDCWithLayout(HDC hdc) +{ + HDC hdcNew = ::CreateCompatibleDC(hdc); + if ( hdcNew ) + { + DWORD dwLayout = wxMSW::GetLayout(hdc); + if ( dwLayout != GDI_ERROR ) + wxMSW::SetLayout(hdcNew, dwLayout); + } - return s_pfnGetLayout ? s_pfnGetLayout(hdc) : (DWORD)-1; + return hdcNew; } +} // namespace wxMSW + wxLayoutDirection wxMSWDCImpl::GetLayoutDirection() const { - DWORD layout = wxGetDCLayout(GetHdc()); + DWORD layout = wxMSW::GetLayout(GetHdc()); - if ( layout == (DWORD)-1 ) + if ( layout == GDI_ERROR ) return wxLayout_Default; return layout & LAYOUT_RTL ? wxLayout_RightToLeft : wxLayout_LeftToRight; @@ -2762,12 +2876,6 @@ wxLayoutDirection wxMSWDCImpl::GetLayoutDirection() const void wxMSWDCImpl::SetLayoutDirection(wxLayoutDirection dir) { - typedef DWORD (WINAPI *SetLayout_t)(HDC, DWORD); - static SetLayout_t - wxDL_INIT_FUNC(s_pfn, SetLayout, wxDynamicLibrary(_T("gdi32.dll"))); - if ( !s_pfnSetLayout ) - return; - if ( dir == wxLayout_Default ) { dir = wxTheApp->GetLayoutDirection(); @@ -2775,17 +2883,41 @@ void wxMSWDCImpl::SetLayoutDirection(wxLayoutDirection dir) return; } - DWORD layout = wxGetDCLayout(GetHdc()); + DWORD layout = GetLayout(GetHdc()); + if ( layout == GDI_ERROR ) + return; + if ( dir == wxLayout_RightToLeft ) layout |= LAYOUT_RTL; else layout &= ~LAYOUT_RTL; - s_pfnSetLayout(GetHdc(), layout); + wxMSW::SetLayout(GetHdc(), layout); } #else // !wxUSE_DYNLIB_CLASS +// Provide stubs to avoid ifdefs in the code using these functions. +namespace wxMSW +{ + +DWORD GetLayout(HDC WXUNUSED(hdc)) +{ + return GDI_ERROR; +} + +DWORD SetLayout(HDC WXUNUSED(hdc), DWORD WXUNUSED(dwLayout)) +{ + return GDI_ERROR; +} + +HDC CreateCompatibleDCWithLayout(HDC hdc) +{ + return ::CreateCompatibleDC(hdc); +} + +} // namespace wxMSW + // we can't provide RTL support without dynamic loading, so stub it out wxLayoutDirection wxMSWDCImpl::GetLayoutDirection() const {