// constants
// ---------------------------------------------------------------------------
-static const int VIEWPORT_EXTENT = 1000;
+static const int VIEWPORT_EXTENT = 1024;
// 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)
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
// ===========================================================================
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;
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
if ( descent || externalLeading )
{
- TEXTMETRIC tm;
- ::GetTextMetrics(GetHdc(), &tm);
-
- if (descent)
- *descent = tm.tmDescent;
- if (externalLeading)
- *externalLeading = tm.tmExternalLeading;
+ DoGetFontMetrics(NULL, NULL, descent, NULL, externalLeading, NULL);
}
if ( hfontOld )
#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 we more or less arbitrarily
+ // decide to use "base" VIEWPORT_EXTENT and adjust it depending on scale.
+ //
+ // To avoid rounding errors we prefer to multiply by the scale if it's > 1
+ // and to divide by it if it's < 1.
+ int devExtX, devExtY, // Viewport, i.e. device space, extents.
+ logExtX, logExtY; // Window, i.e. logical coordinate space, extents.
+ if ( m_scaleX >= 1 )
+ {
+ devExtX = VIEWPORT_EXTENT*m_scaleX;
+ logExtX = m_signX*VIEWPORT_EXTENT;
+ }
+ else
+ {
+ devExtX = VIEWPORT_EXTENT;
+ logExtX = m_signX*VIEWPORT_EXTENT/m_scaleX;
+ }
+
+ if ( m_scaleY >= 1 )
+ {
+ devExtY = VIEWPORT_EXTENT*m_scaleY;
+ logExtY = m_signY*VIEWPORT_EXTENT;
+ }
+ else
+ {
+ devExtY = VIEWPORT_EXTENT;
+ logExtY = m_signY*VIEWPORT_EXTENT/m_scaleY;
+ }
- ::SetViewportExtEx(GetHdc(), VIEWPORT_EXTENT, VIEWPORT_EXTENT, NULL);
- ::SetWindowExtEx(GetHdc(), width, height, NULL);
+ ::SetViewportExtEx(GetHdc(), devExtX, devExtY, NULL);
+ ::SetWindowExtEx(GetHdc(), logExtX, logExtY, NULL);
::SetViewportOrgEx(GetHdc(), m_deviceOriginX, m_deviceOriginY, NULL);
::SetWindowOrgEx(GetHdc(), m_logicalOriginX, m_logicalOriginY, NULL);
::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
// ---------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff