#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"
#include "wx/sysopt.h"
#include "wx/dynlib.h"
-#ifdef wxHAVE_RAW_BITMAP
-#include "wx/rawbmp.h"
+#ifdef wxHAS_RAW_BITMAP
+ #include "wx/rawbmp.h"
#endif
#include <string.h>
-#ifndef __WIN32__
- #include <print.h>
-#endif
+#include "wx/msw/private/dc.h"
+#include "wx/private/textmeasure.h"
+
+using namespace wxMSWImpl;
#ifndef AC_SRC_ALPHA
#define AC_SRC_ALPHA 1
// 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)
HDC hdcSrc,
const wxBitmap& bmp);
-#ifdef wxHAVE_RAW_BITMAP
+#ifdef wxHAS_RAW_BITMAP
// our (limited) AlphaBlend() replacement for Windows versions not providing it
static void
int srcWidth, int srcHeight,
const wxBitmap& bmpSrc);
-#endif // wxHAVE_RAW_BITMAP
-
-// ----------------------------------------------------------------------------
-// private classes
-// ----------------------------------------------------------------------------
-
-// various classes to change some DC property temporarily
+#endif // wxHAS_RAW_BITMAP
-// 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);
- }
- ~wxTextColoursChanger()
- {
- if ( m_oldColFg != CLR_INVALID )
- ::SetTextColor(m_hdc, m_oldColFg);
- if ( m_oldColBg != CLR_INVALID )
- ::SetBkColor(m_hdc, m_oldColBg);
- }
-
-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;
- }
+// 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);
- 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;
- }
+// 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);
- if ( colBg.IsOk() )
- {
- m_oldColBg = ::SetBkColor(m_hdc, colBg.GetPixel());
- if ( m_oldColBg == CLR_INVALID )
- {
- wxLogLastError(_T("SetBkColor"));
- }
- }
- else
- {
- m_oldColBg = CLR_INVALID;
- }
- }
+} // namespace wxMSW
-private:
- const HDC m_hdc;
- COLORREF m_oldColFg,
- m_oldColBg;
-
- DECLARE_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;
-
- DECLARE_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,
wxBrushAttrsSetter(wxMSWDCImpl& dc);
private:
- DECLARE_NO_COPY_CLASS(wxBrushAttrsSetter)
+ 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:
int m_modeOld;
- DECLARE_NO_COPY_CLASS(StretchBltModeChanger)
+ 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
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
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
// ===========================================================================
}
}
+// ----------------------------------------------------------------------------
+// wxDC MSW-specific methods
+// ----------------------------------------------------------------------------
+
+WXHDC wxDC::GetHDC() const
+{
+ wxMSWDCImpl * const impl = wxDynamicCast(GetImpl(), wxMSWDCImpl);
+ return impl ? impl->GetHDC() : 0;
+}
+
// ---------------------------------------------------------------------------
// wxMSWDCImpl
// ---------------------------------------------------------------------------
if (m_oldBitmap)
{
::SelectObject((HDC) dc, (HBITMAP) m_oldBitmap);
-#ifdef __WXDEBUG__
if (m_selectedBitmap.IsOk())
{
m_selectedBitmap.SetSelectedInto(NULL);
}
-#endif
}
m_oldBitmap = 0;
if (m_oldPen)
wxDCImpl::DoGetClippingBox(x, y, w, h);
}
-// common part of DoSetClippingRegion() and DoSetClippingRegionAsRegion()
+// common part of DoSetClippingRegion() and DoSetDeviceClippingRegion()
void wxMSWDCImpl::SetClippingHrgn(WXHRGN hrgn)
{
wxCHECK_RET( hrgn, wxT("invalid clipping region") );
#else // !WinCE
if ( ::ExtSelectClipRgn(GetHdc(), (HRGN)hrgn, RGN_AND) == ERROR )
{
- wxLogLastError(_T("ExtSelectClipRgn"));
+ wxLogLastError(wxT("ExtSelectClipRgn"));
return;
}
LogicalToDeviceY(y + h));
if ( !hrgn )
{
- wxLogLastError(_T("CreateRectRgn"));
+ wxLogLastError(wxT("CreateRectRgn"));
}
else
{
}
}
-void wxMSWDCImpl::DoSetClippingRegionAsRegion(const wxRegion& region)
+void wxMSWDCImpl::DoSetDeviceClippingRegion(const wxRegion& region)
{
SetClippingHrgn(region.GetHRGN());
}
bool wxMSWDCImpl::DoFloodFill(wxCoord WXUNUSED_IN_WINCE(x),
wxCoord WXUNUSED_IN_WINCE(y),
const wxColour& WXUNUSED_IN_WINCE(col),
- int WXUNUSED_IN_WINCE(style))
+ wxFloodFillStyle WXUNUSED_IN_WINCE(style))
{
#ifdef __WXWINCE__
return false;
{
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));
wxCoord x2, wxCoord y2,
wxCoord xc, wxCoord yc)
{
+ double dx = xc - x1;
+ double dy = yc - y1;
+ wxCoord r = (wxCoord)sqrt(dx*dx + dy*dy);
+
+
#ifdef __WXWINCE__
// Slower emulation since WinCE doesn't support Pie and Arc
- double r = sqrt( (x1-xc)*(x1-xc) + (y1-yc)*(y1-yc) );
double sa = acos((x1-xc)/r)/M_PI*180; // between 0 and 180
- if( y1>yc ) sa = -sa; // below center
+ if( y1>yc )
+ sa = -sa; // below center
double ea = atan2(yc-y2, x2-xc)/M_PI*180;
DoDrawEllipticArcRot( xc-r, yc-r, 2*r, 2*r, sa, ea );
#else
wxBrushAttrsSetter 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 )
{
wxCoord yy2 = YLOG2DEV(y2);
wxCoord xxc = XLOG2DEV(xc);
wxCoord yyc = YLOG2DEV(yc);
- wxCoord ray = (wxCoord) sqrt(double((xxc-xx1)*(xxc-xx1)+(yyc-yy1)*(yyc-yy1)));
+ dx = xxc - xx1;
+ dy = yyc - yy1;
+ wxCoord ray = (wxCoord)sqrt(dx*dx + dy*dy);
wxCoord xxx1 = (wxCoord) (xxc-ray);
wxCoord yyy1 = (wxCoord) (yyc-ray);
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).
}
void wxMSWDCImpl::DoDrawPolygon(int n,
- wxPoint points[],
+ const wxPoint points[],
wxCoord xoffset,
wxCoord yoffset,
- int WXUNUSED_IN_WINCE(fillStyle))
+ wxPolygonFillMode WXUNUSED_IN_WINCE(fillStyle))
{
WXMICROWIN_CHECK_HDC
void
wxMSWDCImpl::DoDrawPolyPolygon(int n,
- int count[],
- wxPoint points[],
+ const int count[],
+ const wxPoint points[],
wxCoord xoffset,
wxCoord yoffset,
- int fillStyle)
+ wxPolygonFillMode fillStyle)
{
#ifdef __WXWINCE__
wxDCImpl::DoDrawPolyPolygon(n, count, points, xoffset, yoffset, fillStyle);
// __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
// (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++;
// 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++;
wxBrushAttrsSetter cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
- wxCoord x2 = (x+width);
- wxCoord y2 = (y+height);
+ // +1 below makes the ellipse more similar to other platforms.
+ // In particular, DoDrawEllipse(x,y,1,1) should draw one point.
+ wxCoord x2 = x + width + 1;
+ wxCoord y2 = y + height + 1;
+
+ // Problem: Windows GDI Ellipse() with x2-x == y2-y == 3 and transparent
+ // pen doesn't draw anything. Should we provide a workaround?
- (void)Ellipse(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
+ ::Ellipse(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
CalcBoundingBox(x, y);
CalcBoundingBox(x2, y2);
}
-#if wxUSE_SPLINES
+#if wxUSE_SPLINES && !defined(__WXWINCE__)
void wxMSWDCImpl::DoDrawSpline(const wxPointList *points)
{
-#ifdef __WXWINCE__
- // WinCE does not support ::PolyBezier so use generic version
- wxDCImpl::DoDrawSpline(points);
-#else
// quadratic b-spline to cubic bezier spline conversion
//
// quadratic spline with control points P0,P1,P2
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;
::PolyBezier( GetHdc(), lppt, bezier_pos );
free(lppt);
-#endif
}
-#endif
+#endif // wxUSE_SPLINES
// Chris Breeze 20/5/98: first implementation of DrawEllipticArc on Windows
void wxMSWDCImpl::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
{
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();
return;
}
+ SET_STRETCH_BLT_MODE(GetHdc());
+
if ( useMask )
{
wxMask *mask = bmp.GetMask();
#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();
// 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?") );
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);
HGDIOBJ hfont = ::SelectObject(GetHdc(), GetHfontOf(font));
if ( hfont == HGDI_ERROR )
{
- wxLogLastError(_T("SelectObject(font)"));
+ wxLogLastError(wxT("SelectObject(font)"));
}
else // selected ok
{
{
if ( ::SelectObject(GetHdc(), (HPEN) m_oldFont) == HGDI_ERROR )
{
- wxLogLastError(_T("SelectObject(old font)"));
+ wxLogLastError(wxT("SelectObject(old font)"));
}
m_oldFont = 0;
HGDIOBJ hpen = ::SelectObject(GetHdc(), GetHpenOf(pen));
if ( hpen == HGDI_ERROR )
{
- wxLogLastError(_T("SelectObject(pen)"));
+ wxLogLastError(wxT("SelectObject(pen)"));
}
else // selected ok
{
{
if ( ::SelectObject(GetHdc(), (HPEN) m_oldPen) == HGDI_ERROR )
{
- wxLogLastError(_T("SelectObject(old pen)"));
+ wxLogLastError(wxT("SelectObject(old pen)"));
}
m_oldPen = 0;
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
{
{
if ( ::SelectObject(GetHdc(), (HPEN) m_oldBrush) == HGDI_ERROR )
{
- wxLogLastError(_T("SelectObject(old brush)"));
+ wxLogLastError(wxT("SelectObject(old brush)"));
}
m_oldBrush = 0;
// and m_backgroundMode is used there
}
-void wxMSWDCImpl::SetLogicalFunction(int function)
+void wxMSWDCImpl::SetLogicalFunction(wxRasterOperationMode function)
{
WXMICROWIN_CHECK_HDC
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;
+ wxFAIL_MSG( wxS("unknown logical function") );
+ return;
}
SetROP2(GetHdc(), rop);
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
}
#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;
+ wxASSERT_MSG( !font || font->IsOk(), wxT("invalid font in wxMSWDCImpl::GetTextExtent") );
- 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;
-
- 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
#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.
- ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL);
- ::SetWindowExtEx(GetHdc(), width, height, NULL);
+ int devExtX, devExtY, // Viewport, i.e. device space, extents.
+ logExtX, logExtY; // Window, i.e. logical coordinate space, extents.
+
+ 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);
#endif
}
-void wxMSWDCImpl::SetMapMode(int mode)
+void wxMSWDCImpl::SetMapMode(wxMappingMode mode)
{
WXMICROWIN_CHECK_HDC
break;
default:
- wxFAIL_MSG( _T("unknown mapping mode in SetMapMode") );
+ wxFAIL_MSG( wxT("unknown mapping mode in SetMapMode") );
}
}
wxDCImpl::SetLogicalOrigin( x, y );
-#ifndef __WXWINCE__
- ::SetWindowOrgEx(GetHdc(), (int)m_logicalOriginX, (int)m_logicalOriginY, NULL);
-#endif
+ RealizeScaleAndOrigin();
+}
+
+// For use by wxWidgets only, unless custom units are required.
+void wxMSWDCImpl::SetLogicalScale(double x, double y)
+{
+ WXMICROWIN_CHECK_HDC
+
+ wxDCImpl::SetLogicalScale(x,y);
}
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
// ---------------------------------------------------------------------------
wxCoord dstWidth, wxCoord dstHeight,
wxDC *source,
wxCoord srcX, wxCoord srcY,
- int rop, bool useMask,
+ wxRasterOperationMode rop, bool useMask,
wxCoord srcMaskX, wxCoord srcMaskY)
{
return DoStretchBlit(dstX, dstY, dstWidth, dstHeight, source, srcX, srcY, dstWidth, dstHeight, rop, useMask, srcMaskX, srcMaskY);
wxDC *source,
wxCoord xsrc, wxCoord ysrc,
wxCoord srcWidth, wxCoord srcHeight,
- int rop, bool useMask,
+ 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)
// 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 )
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());
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,
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.
if ( hDIB > 0 )
{
// reflect ysrc
- ysrc = hDIB - (ysrc + dstHeight);
+ ysrc = hDIB - (ysrc + srcHeight);
}
if ( ::StretchDIBits(GetHdc(),
#endif
// __WXWINCE__
{
-#ifndef __WXWINCE__
- StretchBltModeChanger changeMode(GetHdc(), COLORONCOLOR);
-#endif
+ SET_STRETCH_BLT_MODE(GetHdc());
if ( !::StretchBlt
(
dwRop
) )
{
- wxLogLastError(_T("StretchBlt"));
+ wxLogLastError(wxT("StretchBlt"));
}
else
{
if ( !::BitBlt(GetHdc(), xdest, ydest, dstWidth, dstHeight,
hdcSrc, xsrc, ysrc, dwRop) )
{
- wxLogLastError(_T("BitBlt"));
+ wxLogLastError(wxT("BitBlt"));
}
else
{
{
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;
}
{
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;
}
return wxSize(x, y);
}
-// For use by wxWidgets only, unless custom units are required.
-void wxMSWDCImpl::SetLogicalScale(double x, double y)
-{
- WXMICROWIN_CHECK_HDC
-
- wxDCImpl::SetLogicalScale(x,y);
-}
-
// ----------------------------------------------------------------------------
// DC caching
// ----------------------------------------------------------------------------
node = node->GetNext();
}
- WXHDC hDC = (WXHDC) ::CreateCompatibleDC((HDC) dc);
+ WXHDC hDC = (WXHDC) wxMSW::CreateCompatibleDCWithLayout((HDC) dc);
if ( !hDC)
{
wxLogLastError(wxT("CreateCompatibleDC"));
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
BLENDFUNCTION);
static AlphaBlend_t
- pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(_T("AlphaBlend"));
+ pfnAlphaBlend = (AlphaBlend_t)wxMSIMG32DLL.GetSymbol(wxT("AlphaBlend"));
if ( pfnAlphaBlend )
{
BLENDFUNCTION bf;
return true;
}
- wxLogLastError(_T("AlphaBlend"));
+ wxLogLastError(wxT("AlphaBlend"));
}
#else
wxUnusedVar(hdcSrc);
// AlphaBlend() unavailable of failed: use our own (probably much slower)
// implementation
-#ifdef wxHAVE_RAW_BITMAP
+#ifdef wxHAS_RAW_BITMAP
wxAlphaBlend(hdcDst, x, y, dstWidth, dstHeight, srcX, srcY, srcWidth, srcHeight, bmp);
return true;
-#else // !wxHAVE_RAW_BITMAP
+#else // !wxHAS_RAW_BITMAP
// no wxAlphaBlend() neither, fall back to using simple BitBlt() (we lose
// alpha but at least something will be shown like this)
wxUnusedVar(bmp);
return false;
-#endif // wxHAVE_RAW_BITMAP
+#endif // wxHAS_RAW_BITMAP/!wxHAS_RAW_BITMAP
}
// wxAlphaBlend: our fallback if ::AlphaBlend() is unavailable
-#ifdef wxHAVE_RAW_BITMAP
+#ifdef wxHAS_RAW_BITMAP
static void
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
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);
// 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"));
}
}
-#endif // #ifdef wxHAVE_RAW_BITMAP
+#endif // wxHAS_RAW_BITMAP
void wxMSWDCImpl::DoGradientFillLinear (const wxRect& rect,
const wxColour& initialColour,
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 )
{
return;
}
- wxLogLastError(_T("GradientFill"));
+ wxLogLastError(wxT("GradientFill"));
}
#endif // wxUSE_DYNLIB_CLASS
#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) : (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;
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();
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
{
projects / wxWidgets.git / blobdiff