// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
-#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
#ifdef __BORLANDC__
#pragma hdrstop
#include "wx/icon.h"
#endif
+#include "wx/settings.h"
#include "wx/dcprint.h"
#include <string.h>
#include <math.h>
+#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
+
#if wxUSE_COMMON_DIALOGS
-#if wxUSE_NORLANDER_HEADERS
- #include <windows.h>
-#endif
#include <commdlg.h>
#endif
#include <print.h>
#endif
- IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase)
// ---------------------------------------------------------------------------
// constants
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
// ---------------------------------------------------------------------------
// 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
// ---------------------------------------------------------------------------
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,
// clipping
// ---------------------------------------------------------------------------
-void wxDC::DoSetClippingRegion(wxCoord cx, wxCoord cy, wxCoord cw, wxCoord ch)
+void wxDC::UpdateClipBox()
+{
+ 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)
{
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"));
+ }
+
+ UpdateClipBox();
+ }
}
void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
{
- wxCHECK_RET( region.GetHRGN(), wxT("invalid clipping region") );
-
- 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()
SelectClipRgn(GetHdc(), rgn);
DeleteObject(rgn);
}
+
m_clipping = FALSE;
}
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
}
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();
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);
+ 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
+ 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)
(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)
+ 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;
}
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);
+}
+
+void wxDC::DoDrawCheckMark(wxCoord x1, wxCoord y1,
+ wxCoord width, wxCoord height)
+{
+ 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);
+ MoveTo(GetHdc(), x1, y1);
+ LineTo(GetHdc(), x2, y2);
+ MoveTo(GetHdc(), x2, y1);
+ LineTo(GetHdc(), x1, y2);
+ ::SelectObject(GetHdc(), hPenOld);
+ ::SelectObject(GetHdc(), hBrushOld);
+ ::DeleteObject(blackPen);
+#endif // Win32/16
- CalcBoundingBox((wxCoord)(xc-radius), (wxCoord)(yc-radius));
- CalcBoundingBox((wxCoord)(xc+radius), (wxCoord)(yc+radius));
+ CalcBoundingBox(x1, y1);
+ CalcBoundingBox(x2, y2);
}
void wxDC::DoDrawPoint(wxCoord x, wxCoord y)
void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle)
{
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
+
// Do things less efficiently if we have offsets
if (xoffset != 0 || yoffset != 0)
{
void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
+ 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);
void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
{
+ 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'
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)));
void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
+
wxCoord x2 = (x+width);
wxCoord y2 = (y+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);
+ 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);
// 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);
{
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());
int width = bmp.GetWidth(),
height = bmp.GetHeight();
- if ( !useMask )
+ HBITMAP hbmpMask = 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 (wxSystemSettings::GetOptionInt(wxT("no-maskblt")) == 0)
+ {
+ HDC hdcMem = ::CreateCompatibleDC(GetHdc());
+ ::SelectObject(hdcMem, GetHbitmapOf(bmp));
+
+ ok = ::MaskBlt(GetHdc(), x, y, width, height,
+ hdcMem, 0, 0,
+ hbmpMask, 0, 0,
+ MAKEROP4(SRCCOPY, DSTCOPY)) != 0;
+ ::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 );
::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)
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
{
DoDrawText(text, x, y);
}
+#ifndef __WXMICROWIN__
else
{
// NB: don't take DEFAULT_GUI_FONT because it's not TrueType and so
LOGFONT lf;
if ( ::GetObject(hfont, sizeof(lf), &lf) == 0 )
{
- wxLogLastError("GetObject(hfont)");
+ wxLogLastError(wxT("GetObject(hfont)"));
}
// GDI wants the angle in tenth of degree
hfont = ::CreateFontIndirect(&lf);
if ( !hfont )
{
- wxLogLastError("CreateFont");
+ wxLogLastError(wxT("CreateFont"));
}
else
{
DrawAnyText(text, x, y);
(void)::SelectObject(GetHdc(), hfontOld);
+ (void)::DeleteObject(hfont);
}
// call the bounding box by adding all four vertices of the rectangle
CalcBoundingBox(x, y);
CalcBoundingBox(x + h*sin(rad), y + h*cos(rad));
}
+#endif
}
// ---------------------------------------------------------------------------
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());
::SetBkMode(GetHdc(), TRANSPARENT);
else
::SetBkMode(GetHdc(), OPAQUE);
+ Last change: AC 29 Jan 101 8:54 pm
*/
}
{
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;
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;
+ 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)
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
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
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;
+ }
}
COLORREF old_textground = ::GetTextColor(GetHdc());
::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;
-
- bool success;
+ 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 = 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 (wxSystemSettings::GetOptionInt(wxT("no-maskblt")) == 0)
{
- // Success
- success = TRUE;
+ success = ::MaskBlt(GetHdc(), xdest, ydest, width, height,
+ GetHdcOf(*source), xsrc, ysrc,
+ (HBITMAP)mask->GetMaskBitmap(), xsrc, ysrc,
+ MAKEROP4(dwRop, DSTCOPY)) != 0;
}
- else
+
+ if ( !success )
#endif // Win32
{
// Blit bitmap with mask
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)
if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height,
dc_mask, xsrc, ysrc, SRCAND) )
{
- wxLogLastError("BitBlt");
+ wxLogLastError(wxT("BitBlt"));
}
// set unmasked area in dest to BLACK
if ( !::BitBlt(GetHdc(), xdest, ydest, (int)width, (int)height,
dc_mask, xsrc, ysrc, SRCAND) )
{
- wxLogLastError("BitBlt");
+ wxLogLastError(wxT("BitBlt"));
}
::SetBkColor(GetHdc(), prevBkCol); // restore colours to original values
::SetTextColor(GetHdc(), prevCol);
dc_buffer, 0, 0, SRCPAINT) != 0;
if ( !success )
{
- wxLogLastError("BitBlt");
+ wxLogLastError(wxT("BitBlt"));
}
// tidy up temporary DCs and bitmap
GetHdcOf(*source), xsrc, ysrc, dwRop) != 0;
if ( !success )
{
- wxLogLastError("BitBlt");
+ wxLogLastError(wxT("BitBlt"));
}
}
-
::SetTextColor(GetHdc(), old_textground);
::SetBkColor(GetHdc(), old_background);
}
#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();
-};
-
-void wx_draw_open_spline(wxDC *dc, wxSpline *spline);
-
-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);
-
-void wxDC::DoDrawSpline(wxList *list)
-{
- wxSpline spline(list);
-
- wx_draw_open_spline(this, &spline);
-}
-
-wxList wx_spline_point_list;
-
-void wx_draw_open_spline(wxDC *dc, wxSpline *spline)
-{
- 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);
-
-}
-
-/********************* 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)
-{
- 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);
- }
- }
-}
-
-
-/* utilities used by spline drawing routines */
-
-
-typedef struct wx_spline_stack_struct {
- double x1, y1, x2, y2, x3, y3, x4, y4;
-}
-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()
-{
- wx_stack_top = wx_spline_stack;
- wx_stack_count = 0;
-}
-
-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++;
-}
-
-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);
-}
-
-static bool wx_spline_add_point(double x, double y)
-{
- wxPoint *point = new wxPoint;
- point->x = (int) x;
- point->y = (int) y;
- wx_spline_point_list.Append((wxObject*)point);
- return TRUE;
-}
-
-static void wx_spline_draw_point_array(wxDC *dc)
-{
- 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();
- }
-}
-
-wxSpline::wxSpline(wxList *list)
-{
- points = list;
-}
-
-wxSpline::~wxSpline()
-{
-}
-
-void wxSpline::DeletePoints()
-{
- for(wxNode *node = points->First(); node; node = points->First())
- {
- wxPoint *point = (wxPoint *)node->Data();
- delete point;
- delete node;
- }
- delete points;
-}
-
-
-#endif // wxUSE_SPLINES
projects / wxWidgets.git / blobdiff