X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/60372b0d54379701d62edf5595a7dc25c48330e1..ee3de647ffd5891138864d032bc0f2bd5a130ef0:/src/msw/dc.cpp?ds=inline diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp index d9f8c91288..779e750e0c 100644 --- a/src/msw/dc.cpp +++ b/src/msw/dc.cpp @@ -4,7 +4,6 @@ // Author: Julian Smart // Modified by: // Created: 01/02/97 -// RCS-ID: $Id$ // Copyright: (c) Julian Smart // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -51,6 +50,7 @@ #include #include "wx/msw/private/dc.h" +#include "wx/private/textmeasure.h" using namespace wxMSWImpl; @@ -148,6 +148,22 @@ wxAlphaBlend(HDC hdcDst, int xDst, int yDst, #endif // wxHAS_RAW_BITMAP +namespace wxMSW +{ + +// 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); + +// 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); + +} // namespace wxMSW + // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- @@ -880,7 +896,7 @@ 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)) @@ -928,8 +944,8 @@ 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) @@ -981,7 +997,7 @@ 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 @@ -1325,7 +1341,7 @@ void wxMSWDCImpl::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool #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 +1373,16 @@ 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?") ); @@ -1857,109 +1872,17 @@ void wxMSWDCImpl::DoGetTextExtent(const wxString& string, wxCoord *x, wxCoord *y } #endif // __WXMICROWIN__ - HFONT hfontOld; - if ( font ) - { - wxASSERT_MSG( font->IsOk(), wxT("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(wxT("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) - - if (x) - *x = sizeRect.cx; - if (y) - *y = sizeRect.cy; + wxASSERT_MSG( !font || font->IsOk(), wxT("invalid font in wxMSWDCImpl::GetTextExtent") ); - if ( descent || externalLeading ) - { - DoGetFontMetrics(NULL, NULL, descent, NULL, externalLeading, NULL); - } - - 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(); - - 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; - } - - widths.Empty(); - widths.Add(0, stlen); // fill the array with zeros - if (stlen == 0) - return true; - - 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; - } - - return true; + wxTextMeasure txm(GetOwner(), NULL); // don't change the font + return txm.GetPartialTextExtents(text, widths, 1.0); } namespace @@ -2358,8 +2281,8 @@ 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()); @@ -2442,6 +2365,17 @@ bool wxMSWDCImpl::DoStretchBlit(wxCoord xdest, wxCoord ydest, { 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. const LONG hDIB = ds.dsBmih.biHeight; @@ -2661,7 +2595,7 @@ 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")); @@ -2893,20 +2827,47 @@ 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(wxT("gdi32.dll"))); - return s_pfnGetLayout ? s_pfnGetLayout(hdc) : (DWORD)-1; + 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 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; @@ -2914,12 +2875,6 @@ 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(wxT("gdi32.dll"))); - if ( !s_pfnSetLayout ) - return; - if ( dir == wxLayout_Default ) { dir = wxTheApp->GetLayoutDirection(); @@ -2927,17 +2882,41 @@ void wxMSWDCImpl::SetLayoutDirection(wxLayoutDirection dir) return; } - DWORD layout = wxGetDCLayout(GetHdc()); + DWORD layout = wxMSW::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 {