#include "wx/icon.h"
#endif
+#include "wx/sysopt.h"
#include "wx/dcprint.h"
+#include "wx/module.h"
#include <string.h>
#include <math.h>
#include <print.h>
#endif
-IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxDCBase)
// ---------------------------------------------------------------------------
// constants
// 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
// ---------------------------------------------------------------------------
-#define DO_SET_CLIPPING_BOX() \
-{ \
- 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::UpdateClipBox()
+{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ 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 cx, wxCoord cy, wxCoord cw, wxCoord ch)
+void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord w, wxCoord h)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_clipping = TRUE;
- IntersectClipRect(GetHdc(), XLOG2DEV(cx), YLOG2DEV(cy),
- XLOG2DEV(cx + cw), YLOG2DEV(cy + ch));
- DO_SET_CLIPPING_BOX()
+
+ // 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"));
+ }
+ DeleteObject(hrgn);
+
+ UpdateClipBox();
+ }
}
void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
{
- wxCHECK_RET( region.GetHRGN(), wxT("invalid clipping region") );
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ wxCHECK_RET( GetHrgnOf(region), wxT("invalid clipping region") );
m_clipping = TRUE;
#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
- DO_SET_CLIPPING_BOX()
+ UpdateClipBox();
}
void wxDC::DestroyClippingRegion()
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
if (m_clipping && m_hDC)
{
// TODO: this should restore the previous clipping region,
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
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return 16;
+#endif
+
return (int)::GetDeviceCaps(GetHdc(), BITSPIXEL);
}
void wxDC::Clear()
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
RECT rect;
if ( m_canvas )
{
void wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
if ( !::ExtFloodFill(GetHdc(), XLOG2DEV(x), YLOG2DEV(y),
col.GetPixel(),
style == wxFLOOD_SURFACE ? FLOODFILLSURFACE
// * The point is outside the clipping region that is, it is not
// visible on the device.
//
- wxLogLastError("ExtFloodFill");
+ wxLogLastError(wxT("ExtFloodFill"));
}
CalcBoundingBox(x, y);
bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
{
- // get the color of the pixel
- COLORREF pixelcolor = ::GetPixel(GetHdc(), XLOG2DEV(x), YLOG2DEV(y));
-
- // JACS: what was this for?
-#if 0
- // get the color of the pen
- COLORREF pencolor = 0x00ffffff;
- if (m_pen.Ok())
- {
- pencolor = m_pen.GetColour().GetPixel();
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return FALSE;
#endif
+
+ wxCHECK_MSG( col, FALSE, _T("NULL colour parameter in wxDC::GetPixel") );
- // return the color of the pixel
- if( col )
- {
- col->Set(GetRValue(pixelcolor),
- GetGValue(pixelcolor),
- GetBValue(pixelcolor));
- }
+ // get the color of the pixel
+ COLORREF pixelcolor = ::GetPixel(GetHdc(), XLOG2DEV(x), YLOG2DEV(y));
- // check, if color of the pixels is the same as the color of the current
- // pen and return TRUE if it is, FALSE otherwise
- // JACS, 24/02/2000: can't understand the reason for this, so returning TRUE instead.
- // return pixelcolor == pencolor;
+ wxRGBToColour(*col, pixelcolor);
return TRUE;
}
void wxDC::DoCrossHair(wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
wxCoord x1 = x-VIEWPORT_EXTENT;
wxCoord y1 = y-VIEWPORT_EXTENT;
wxCoord x2 = x+VIEWPORT_EXTENT;
void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
(void)MoveToEx(GetHdc(), XLOG2DEV(x1), YLOG2DEV(y1), NULL);
(void)LineTo(GetHdc(), XLOG2DEV(x2), YLOG2DEV(y2));
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)
{
- COLORREF colFgOld = 0,
- colBgOld = 0;
-
- if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE)
- {
- colFgOld = ::GetTextColor(GetHdc());
- colBgOld = ::GetBkColor(GetHdc());
-
- if (m_textForegroundColour.Ok())
- { //just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel() );
- }
- if (m_textBackgroundColour.Ok())
- { //just the oposite from what is expected
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel() );
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
- if (m_backgroundMode == wxTRANSPARENT)
- SetBkMode(GetHdc(), TRANSPARENT);
- else
- SetBkMode(GetHdc(), OPAQUE);
- }
+ double dx = xc - x1;
+ double dy = yc - y1;
+ double radius = (double)sqrt(dx*dx+dy*dy);
+ wxCoord r = (wxCoord)radius;
- double dx = xc-x1;
- double dy = yc-y1;
- double radius = (double)sqrt(dx*dx+dy*dy) ;;
- if (x1==x2 && x2==y2)
+ // 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);
-
- CalcBoundingBox((wxCoord)(xc-radius), (wxCoord)(yc-radius));
- CalcBoundingBox((wxCoord)(xc+radius), (wxCoord)(yc+radius));
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
{
- // restore the colours we changed
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), colFgOld);
- ::SetBkColor(GetHdc(), colBgOld);
+ 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)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
wxCoord x2 = x1 + width,
y2 = y1 + height;
-#if defined(__WIN32__) && !defined(__SC__)
+#if defined(__WIN32__) && !defined(__SC__) && !defined(__WXMICROWIN__)
RECT rect;
rect.left = x1;
rect.top = y1;
HPEN hBrushOld = (HPEN)::SelectObject(GetHdc(), whiteBrush);
::SetROP2(GetHdc(), R2_COPYPEN);
Rectangle(GetHdc(), x1, y1, x2, y2);
- MoveTo(GetHdc(), x1, y1);
+ MoveToEx(GetHdc(), x1, y1, NULL);
LineTo(GetHdc(), x2, y2);
- MoveTo(GetHdc(), x2, y1);
+ MoveToEx(GetHdc(), x2, y1, NULL);
LineTo(GetHdc(), x1, y2);
::SelectObject(GetHdc(), hPenOld);
::SelectObject(GetHdc(), hBrushOld);
void wxDC::DoDrawPoint(wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
COLORREF color = 0x00ffffff;
if (m_pen.Ok())
{
void wxDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle)
{
- COLORREF colFgOld = 0,
- colBgOld = 0;
-
- if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE)
- {
- colFgOld = ::GetTextColor(GetHdc());
- colBgOld = ::GetBkColor(GetHdc());
-
- if (m_textForegroundColour.Ok())
- { //just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel() );
- }
- if (m_textBackgroundColour.Ok())
- { //just the oposite from what is expected
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel() );
- }
-
- if (m_backgroundMode == wxTRANSPARENT)
- SetBkMode(GetHdc(), TRANSPARENT);
- else
- SetBkMode(GetHdc(), OPAQUE);
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
// Do things less efficiently if we have offsets
if (xoffset != 0 || yoffset != 0)
(void)Polygon(GetHdc(), (POINT*) points, n);
SetPolyFillMode(GetHdc(),prev);
}
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- // restore the colours we changed
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), colFgOld);
- ::SetBkColor(GetHdc(), colBgOld);
- }
}
void wxDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// Do things less efficiently if we have offsets
if (xoffset != 0 || yoffset != 0)
{
void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
- COLORREF colFgOld = 0,
- colBgOld = 0;
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- colFgOld = ::GetTextColor(GetHdc());
- colBgOld = ::GetBkColor(GetHdc());
-
- if ( m_textForegroundColour.Ok() )
- {
- // just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel());
- }
-
- if ( m_textBackgroundColour.Ok() )
- {
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel());
- }
-
- // VZ: IMHO this does strictly nothing here
- SetBkMode(GetHdc(), m_backgroundMode == wxTRANSPARENT ? TRANSPARENT
- : OPAQUE);
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
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
+ // to have the same size regardless of which pen is used - adjust
// I wonder if this shouldn´t be done after the LOG2DEV() conversions. RR.
if ( m_pen.GetStyle() == wxTRANSPARENT )
y2++;
}
- (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
+ (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
}
CalcBoundingBox(x, y);
CalcBoundingBox(x2, y2);
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- // restore the colours we changed
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), colFgOld);
- ::SetBkColor(GetHdc(), colBgOld);
- }
}
void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
{
- COLORREF colFgOld = 0,
- colBgOld = 0;
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- colFgOld = ::GetTextColor(GetHdc());
- colBgOld = ::GetBkColor(GetHdc());
-
- if ( m_textForegroundColour.Ok() )
- {
- // just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel());
- }
-
- if ( m_textBackgroundColour.Ok() )
- {
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel());
- }
-
- // VZ: IMHO this does strictly nothing here
- SetBkMode(GetHdc(), m_backgroundMode == wxTRANSPARENT ? TRANSPARENT
- : OPAQUE);
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ 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'
CalcBoundingBox(x, y);
CalcBoundingBox(x2, y2);
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- // restore the colours we changed
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), colFgOld);
- ::SetBkColor(GetHdc(), colBgOld);
- }
}
void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
- COLORREF colFgOld = 0,
- colBgOld = 0;
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- colFgOld = ::GetTextColor(GetHdc());
- colBgOld = ::GetBkColor(GetHdc());
-
- if ( m_textForegroundColour.Ok() )
- {
- // just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel());
- }
-
- if ( m_textBackgroundColour.Ok() )
- {
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel());
- }
-
- // VZ: IMHO this does strictly nothing here
- SetBkMode(GetHdc(), m_backgroundMode == wxTRANSPARENT ? TRANSPARENT
- : OPAQUE);
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
wxCoord x2 = (x+width);
wxCoord y2 = (y+height);
CalcBoundingBox(x, y);
CalcBoundingBox(x2, y2);
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- // restore the colours we changed
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), colFgOld);
- ::SetBkColor(GetHdc(), colBgOld);
- }
}
// 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)
{
- COLORREF colFgOld = 0,
- colBgOld = 0;
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- colFgOld = ::GetTextColor(GetHdc());
- colBgOld = ::GetBkColor(GetHdc());
-
- if ( m_textForegroundColour.Ok() )
- {
- // just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel());
- }
-
- if ( m_textBackgroundColour.Ok() )
- {
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel());
- }
-
- // VZ: IMHO this does strictly nothing here
- SetBkMode(GetHdc(), m_backgroundMode == wxTRANSPARENT ? TRANSPARENT
- : OPAQUE);
- }
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
+ wxColourChanger cc(*this); // needed for wxSTIPPLE_MASK_OPAQUE handling
- wxCoord x2 = (x+w);
- wxCoord y2 = (y+h);
+ 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);
-
- if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
- {
- // restore the colours we changed
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), colFgOld);
- ::SetBkColor(GetHdc(), colBgOld);
- }
}
void wxDC::DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
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());
void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask )
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
wxCHECK_RET( bmp.Ok(), _T("invalid bitmap in wxDC::DrawBitmap") );
int width = bmp.GetWidth(),
if ( useMask )
{
#ifdef __WIN32__
- HDC hdcMem = ::CreateCompatibleDC(GetHdc());
- ::SelectObject(hdcMem, GetHbitmapOf(bmp));
-
// use MaskBlt() with ROP which doesn't do anything to dst in the mask
// points
- bool ok = ::MaskBlt(GetHdc(), x, y, width, height,
+ // 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 wxUSE_SYSTEM_OPTIONS
+ if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0)
+#endif
+ {
+ 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);
+ ::DeleteDC(hdcMem);
+ }
if ( !ok )
#endif // Win32
void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
DrawAnyText(text, x, y);
// update the bounding box
void wxDC::DrawAnyText(const wxString& text, wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// prepare for drawing the text
if ( m_textForegroundColour.Ok() )
SetTextColor(GetHdc(), m_textForegroundColour.GetPixel());
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
wxCoord x, wxCoord y,
double angle)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// we test that we have some font because otherwise we should still use the
// "else" part below to avoid that DrawRotatedText(angle = 180) and
// DrawRotatedText(angle = 0) use different fonts (we can't use the default
{
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
{
CalcBoundingBox(x, y);
CalcBoundingBox(x + h*sin(rad), y + h*cos(rad));
}
+#endif
}
// ---------------------------------------------------------------------------
void wxDC::SetPalette(const wxPalette& palette)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// Set the old object temporarily, in case the assignment deletes an object
// that's not yet selected out.
if (m_oldPalette)
void wxDC::SetFont(const wxFont& the_font)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// Set the old object temporarily, in case the assignment deletes an object
// that's not yet selected out.
if (m_oldFont)
void wxDC::SetPen(const wxPen& pen)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// Set the old object temporarily, in case the assignment deletes an object
// that's not yet selected out.
if (m_oldPen)
void wxDC::SetBrush(const wxBrush& brush)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
// Set the old object temporarily, in case the assignment deletes an object
// that's not yet selected out.
if (m_oldBrush)
void wxDC::SetBackground(const wxBrush& brush)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_backgroundBrush = brush;
if (!m_backgroundBrush.Ok())
void wxDC::SetBackgroundMode(int mode)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_backgroundMode = mode;
// SetBackgroundColour now only refers to text background
::SetBkMode(GetHdc(), TRANSPARENT);
else
::SetBkMode(GetHdc(), OPAQUE);
+ Last change: AC 29 Jan 101 8:54 pm
*/
}
void wxDC::SetLogicalFunction(int function)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_logicalFunction = function;
SetRop(m_hDC);
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;
wxCoord wxDC::GetCharHeight() const
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return 0;
+#endif
+
TEXTMETRIC lpTextMetric;
GetTextMetrics(GetHdc(), &lpTextMetric);
wxCoord wxDC::GetCharWidth() const
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return 0;
+#endif
+
TEXTMETRIC lpTextMetric;
GetTextMetrics(GetHdc(), &lpTextMetric);
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;
+#ifdef __WXMICROWIN__
+ if (!GetHDC())
+ {
+ if (x) *x = 0;
+ if (y) *y = 0;
+ if (descent) *descent = 0;
+ if (externalLeading) *externalLeading = 0;
+ return;
+ }
+#endif
+
+ 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)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_mappingMode = mode;
int pixel_width = 0;
void wxDC::SetUserScale(double x, double y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_userScaleX = x;
m_userScaleY = y;
void wxDC::SetAxisOrientation(bool xLeftRight, bool yBottomUp)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_signX = xLeftRight ? 1 : -1;
m_signY = yBottomUp ? -1 : 1;
void wxDC::SetSystemScale(double x, double y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_scaleX = x;
m_scaleY = y;
void wxDC::SetLogicalOrigin(wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_logicalOriginX = x;
m_logicalOriginY = y;
void wxDC::SetDeviceOrigin(wxCoord x, wxCoord y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_deviceOriginX = x;
m_deviceOriginY = y;
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
bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
wxCoord width, wxCoord height,
wxDC *source, wxCoord xsrc, wxCoord ysrc,
- int rop, bool useMask)
+ int rop, bool useMask,
+ wxCoord xsrcMask, wxCoord ysrcMask)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return FALSE;
+#endif
+
wxMask *mask = NULL;
if ( useMask )
{
}
}
+ if (xsrcMask == -1 && ysrcMask == -1)
+ {
+ xsrcMask = xsrc; ysrcMask = ysrc;
+ }
+
COLORREF old_textground = ::GetTextColor(GetHdc());
COLORREF old_background = ::GetBkColor(GetHdc());
if (m_textForegroundColour.Ok())
return FALSE;
}
- bool success;
+ bool success = FALSE;
if (useMask)
{
// 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)
- success = ::MaskBlt(GetHdc(), xdest, ydest, width, height,
+
+ // 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 wxUSE_SYSTEM_OPTIONS
+ if (wxSystemOptions::GetOptionInt(wxT("no-maskblt")) == 0)
+#endif
+ {
+ success = ::MaskBlt(GetHdc(), xdest, ydest, width, height,
GetHdcOf(*source), xsrc, ysrc,
- (HBITMAP)mask->GetMaskBitmap(), 0, 0,
+ (HBITMAP)mask->GetMaskBitmap(), xsrcMask, ysrcMask,
MAKEROP4(dwRop, DSTCOPY)) != 0;
+ }
if ( !success )
#endif // Win32
{
// Blit bitmap with mask
+ HDC dc_mask ;
+ HDC dc_buffer ;
+ HBITMAP buffer_bmap ;
+#if wxUSE_DC_CACHEING
// create a temp buffer bitmap and DCs to access it and the mask
- HDC dc_mask = ::CreateCompatibleDC(GetHdcOf(*source));
- HDC dc_buffer = ::CreateCompatibleDC(GetHdc());
- HBITMAP buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), width, height);
+ wxDCCacheEntry* dcCacheEntry1 = FindDCInCache(NULL, source->GetHDC());
+ dc_mask = (HDC) dcCacheEntry1->m_dc;
+
+ wxDCCacheEntry* dcCacheEntry2 = FindDCInCache(dcCacheEntry1, GetHDC());
+ dc_buffer = (HDC) dcCacheEntry2->m_dc;
+
+ wxDCCacheEntry* bitmapCacheEntry = FindBitmapInCache(GetHDC(),
+ width, height);
+
+ 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(GetHdcOf(*source));
+ dc_buffer = ::CreateCompatibleDC(GetHdc());
+ buffer_bmap = ::CreateCompatibleBitmap(GetHdc(), width, height);
::SelectObject(dc_mask, (HBITMAP) mask->GetMaskBitmap());
::SelectObject(dc_buffer, buffer_bmap);
+#endif // wxUSE_DC_CACHEING/!wxUSE_DC_CACHEING
// copy dest to buffer
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)
COLORREF prevBkCol = ::SetBkColor(GetHdc(), RGB(255, 255, 255));
COLORREF prevCol = ::SetTextColor(GetHdc(), RGB(0, 0, 0));
if ( !::BitBlt(dc_buffer, 0, 0, (int)width, (int)height,
- dc_mask, xsrc, ysrc, SRCAND) )
+ dc_mask, xsrcMask, ysrcMask, SRCAND) )
{
- wxLogLastError("BitBlt");
+ wxLogLastError(wxT("BitBlt"));
}
// set unmasked area in dest to BLACK
::SetBkColor(GetHdc(), RGB(0, 0, 0));
::SetTextColor(GetHdc(), RGB(255, 255, 255));
if ( !::BitBlt(GetHdc(), xdest, ydest, (int)width, (int)height,
- dc_mask, xsrc, ysrc, SRCAND) )
+ dc_mask, xsrcMask, ysrcMask, 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
::SelectObject(dc_mask, 0);
- ::DeleteDC(dc_mask);
::SelectObject(dc_buffer, 0);
- ::DeleteDC(dc_buffer);
- ::DeleteObject(buffer_bmap);
+
+#if !wxUSE_DC_CACHEING
+ {
+ ::DeleteDC(dc_mask);
+ ::DeleteDC(dc_buffer);
+ ::DeleteObject(buffer_bmap);
+ }
+#endif
}
}
else // no mask, just BitBlt() it
GetHdcOf(*source), xsrc, ysrc, dwRop) != 0;
if ( !success )
{
- wxLogLastError("BitBlt");
+ wxLogLastError(wxT("BitBlt"));
}
}
::SetTextColor(GetHdc(), old_textground);
void wxDC::DoGetSize(int *w, int *h) const
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
if ( w ) *w = ::GetDeviceCaps(GetHdc(), HORZRES);
if ( h ) *h = ::GetDeviceCaps(GetHdc(), VERTRES);
}
void wxDC::DoGetSizeMM(int *w, int *h) const
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
if ( w ) *w = ::GetDeviceCaps(GetHdc(), HORZSIZE);
if ( h ) *h = ::GetDeviceCaps(GetHdc(), VERTSIZE);
}
wxSize wxDC::GetPPI() const
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return wxSize();
+#endif
+
int x = ::GetDeviceCaps(GetHdc(), LOGPIXELSX);
int y = ::GetDeviceCaps(GetHdc(), LOGPIXELSY);
// For use by wxWindows only, unless custom units are required.
void wxDC::SetLogicalScale(double x, double y)
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
m_logicalScaleX = x;
m_logicalScaleY = y;
}
float *descent, float *externalLeading,
wxFont *theFont, bool use16bit) const
{
+#ifdef __WXMICROWIN__
+ if (!GetHDC()) return;
+#endif
+
wxCoord x1, y1, descent1, externalLeading1;
GetTextExtent(string, & x1, & y1, & descent1, & externalLeading1, theFont, use16bit);
*x = x1; *y = y1;
}
#endif
-// ---------------------------------------------------------------------------
-// spline drawing code
-// ---------------------------------------------------------------------------
-
-#if wxUSE_SPLINES
-
-class wxSpline: public wxObject
-{
-public:
- int type;
- wxList *points;
-
- wxSpline(wxList *list);
- void DeletePoints();
+#if wxUSE_DC_CACHEING
- // Doesn't delete points
- ~wxSpline();
-};
-
-void wx_draw_open_spline(wxDC *dc, wxSpline *spline);
+/*
+ * This implementation is a bit ugly and uses the old-fashioned wxList class, so I will
+ * improve it in due course, either using arrays, or simply storing pointers to one
+ * entry for the bitmap, and two for the DCs. -- JACS
+ */
-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);
+wxList wxDC::sm_bitmapCache;
+wxList wxDC::sm_dcCache;
-void wxDC::DoDrawSpline(wxList *list)
+wxDCCacheEntry::wxDCCacheEntry(WXHBITMAP hBitmap, int w, int h, int depth)
{
- wxSpline spline(list);
-
- wx_draw_open_spline(this, &spline);
+ m_bitmap = hBitmap;
+ m_dc = 0;
+ m_width = w;
+ m_height = h;
+ m_depth = depth;
}
-wxList wx_spline_point_list;
-
-void wx_draw_open_spline(wxDC *dc, wxSpline *spline)
+wxDCCacheEntry::wxDCCacheEntry(WXHDC hDC, int depth)
{
- 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);
-
+ m_bitmap = 0;
+ m_dc = hDC;
+ m_width = 0;
+ m_height = 0;
+ m_depth = depth;
}
-/********************* 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)
+wxDCCacheEntry::~wxDCCacheEntry()
{
- 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);
- }
- }
+ if (m_bitmap)
+ ::DeleteObject((HBITMAP) m_bitmap);
+ if (m_dc)
+ ::DeleteDC((HDC) m_dc);
}
+wxDCCacheEntry* wxDC::FindBitmapInCache(WXHDC dc, int w, int h)
+{
+ int depth = ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+ wxNode* node = sm_bitmapCache.First();
+ while (node)
+ {
+ wxDCCacheEntry* entry = (wxDCCacheEntry*) node->Data();
-/* utilities used by spline drawing routines */
-
+ if (entry->m_depth == depth)
+ {
+ if (entry->m_width < w || entry->m_height < h)
+ {
+ ::DeleteObject((HBITMAP) entry->m_bitmap);
+ entry->m_bitmap = (WXHBITMAP) ::CreateCompatibleBitmap((HDC) dc, w, h);
+ if ( !entry->m_bitmap)
+ {
+ wxLogLastError(wxT("CreateCompatibleBitmap"));
+ }
+ entry->m_width = w; entry->m_height = h;
+ return entry;
+ }
+ return entry;
+ }
-typedef struct wx_spline_stack_struct {
- double x1, y1, x2, y2, x3, y3, x4, y4;
+ node = node->Next();
+ }
+ WXHBITMAP hBitmap = (WXHBITMAP) ::CreateCompatibleBitmap((HDC) dc, w, h);
+ if ( !hBitmap)
+ {
+ wxLogLastError(wxT("CreateCompatibleBitmap"));
+ }
+ wxDCCacheEntry* entry = new wxDCCacheEntry(hBitmap, w, h, depth);
+ AddToBitmapCache(entry);
+ return entry;
}
-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()
+wxDCCacheEntry* wxDC::FindDCInCache(wxDCCacheEntry* notThis, WXHDC dc)
{
- wx_stack_top = wx_spline_stack;
- wx_stack_count = 0;
-}
+ int depth = ::GetDeviceCaps((HDC) dc, PLANES) * ::GetDeviceCaps((HDC) dc, BITSPIXEL);
+ wxNode* node = sm_dcCache.First();
+ while (node)
+ {
+ wxDCCacheEntry* entry = (wxDCCacheEntry*) node->Data();
-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++;
-}
+ // Don't return the same one as we already have
+ if (!notThis || (notThis != entry))
+ {
+ if (entry->m_depth == depth)
+ {
+ return entry;
+ }
+ }
-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);
+ node = node->Next();
+ }
+ WXHDC hDC = (WXHDC) ::CreateCompatibleDC((HDC) dc);
+ if ( !hDC)
+ {
+ wxLogLastError(wxT("CreateCompatibleDC"));
+ }
+ wxDCCacheEntry* entry = new wxDCCacheEntry(hDC, depth);
+ AddToDCCache(entry);
+ return entry;
}
-static bool wx_spline_add_point(double x, double y)
+void wxDC::AddToBitmapCache(wxDCCacheEntry* entry)
{
- wxPoint *point = new wxPoint;
- point->x = (int) x;
- point->y = (int) y;
- wx_spline_point_list.Append((wxObject*)point);
- return TRUE;
+ sm_bitmapCache.Append(entry);
}
-static void wx_spline_draw_point_array(wxDC *dc)
+void wxDC::AddToDCCache(wxDCCacheEntry* entry)
{
- 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();
- }
+ sm_dcCache.Append(entry);
}
-wxSpline::wxSpline(wxList *list)
+void wxDC::ClearCache()
{
- points = list;
+ sm_bitmapCache.DeleteContents(TRUE);
+ sm_bitmapCache.Clear();
+ sm_bitmapCache.DeleteContents(FALSE);
+ sm_dcCache.DeleteContents(TRUE);
+ sm_dcCache.Clear();
+ sm_dcCache.DeleteContents(FALSE);
}
-wxSpline::~wxSpline()
+// Clean up cache at app exit
+class wxDCModule : public wxModule
{
-}
+public:
+ virtual bool OnInit() { return TRUE; }
+ virtual void OnExit() { wxDC::ClearCache(); }
-void wxSpline::DeletePoints()
-{
- for(wxNode *node = points->First(); node; node = points->First())
- {
- wxPoint *point = (wxPoint *)node->Data();
- delete point;
- delete node;
- }
- delete points;
-}
+private:
+ DECLARE_DYNAMIC_CLASS(wxDCModule)
+};
+IMPLEMENT_DYNAMIC_CLASS(wxDCModule, wxModule)
-#endif // wxUSE_SPLINES
+#endif
+ // wxUSE_DC_CACHEING
projects / wxWidgets.git / blobdiff