// headers
// ---------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "dc.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#endif
#include "wx/fontutil.h"
+#include "wx/encinfo.h"
#include "wx/fontmap.h"
#include "wx/mgl/private.h"
#include "wx/log.h"
#include <string.h>
-#include <math.h>
#include <mgraph.hpp>
// constants
//-----------------------------------------------------------------------------
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-const double mm2inches = 0.0393700787402;
-const double inches2mm = 25.4;
-const double mm2twips = 56.6929133859;
-const double twips2mm = 0.0176388888889;
-const double mm2pt = 2.83464566929;
-const double pt2mm = 0.352777777778;
const double RAD2DEG = 180.0 / M_PI;
const ushort STIPPLE_wxDOT = 0x5555/* - - - - - - - -*/;
const ushort STIPPLE_wxLONG_DASH = 0xF0F0/* ---- ----*/;
const ushort STIPPLE_wxSHORT_DASH = 0xCCCC/*-- -- -- -- */;
-const ushort STIPPLE_wxDOT_DASH = 0x3939/* --- - --- -*/;
-const ushort STIPPLE_wxSOLID = 0xFFFF/*----------------*/;
+const ushort STIPPLE_wxDOT_DASH = 0x3939/* --- - --- -*/;
+const ushort STIPPLE_wxSOLID = 0xFFFF/*----------------*/;
#define PATTERN_ROW(b7,b6,b5,b4,b3,b2,b1,b0) \
((b7 << 7) | (b6 << 6) | (b5 << 5) | (b4 << 4) | \
m_penSelected = m_brushSelected = FALSE;
m_downloadedPatterns[0] = m_downloadedPatterns[1] = FALSE;
-
+
m_mglFont = NULL;
}
wxDC::~wxDC()
{
- if (m_OwnsMGLDC)
+ if (m_OwnsMGLDC)
delete m_MGLDC;
}
delete m_MGLDC;
m_MGLDC = mgldc;
m_OwnsMGLDC = OwnsMGLDC;
- m_ok = TRUE;
+ m_ok = TRUE;
if ( !m_globalClippingRegion.IsNull() )
SetClippingRegion(m_globalClippingRegion);
-
+
InitializeMGLDC();
}
DestroyClippingRegion();
return;
}
-
+
wxRegion rg(region);
-
+
// check if the DC is scaled or moved, and if yes, then
// convert rg to device coordinates:
if ( m_deviceOriginX != 0 || m_deviceOriginY != 0 ||
XLOG2DEVREL(500) != 500 || YLOG2DEVREL(500) != 500 )
{
region_t *mrg = rg.GetMGLRegion().rgnPointer();
- span_t *s;
- segment_t *p;
- for (s = mrg->spans; s; s = s->next)
+ span_t *s;
+ segment_t *p;
+ for (s = mrg->spans; s; s = s->next)
{
- s->y = YLOG2DEV(s->y);
- for (p = s->seg; p; p = p->next)
- p->x = XLOG2DEV(p->x);
+ s->y = YLOG2DEV(s->y);
+ for (p = s->seg; p; p = p->next)
+ p->x = XLOG2DEV(p->x);
}
}
-
+
if ( !m_currentClippingRegion.IsNull() )
m_currentClippingRegion.Intersect(rg);
else
void wxDC::DestroyClippingRegion()
{
wxCHECK_RET( Ok(), wxT("invalid dc") );
-
+
if ( !m_globalClippingRegion.IsNull() )
{
m_MGLDC->setClipRegion(m_globalClippingRegion.GetMGLRegion());
else
{
m_MGLDC->setClipRect(MGLRect(0, 0, m_MGLDC->sizex()+1, m_MGLDC->sizey()+1));
- m_clipping = FALSE;
+ ResetClipping();
m_currentClippingRegion.Clear();
}
}
}
}
-extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
+extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
const wxColour & col, int style);
bool wxDC::DoFloodFill(wxCoord x, wxCoord y,
wxCHECK_MSG( col, FALSE, _T("NULL colour parameter in wxDC::GetPixel"));
uchar r, g, b;
- m_MGLDC->unpackColorFast(m_MGLDC->getPixel(XLOG2DEV(x), YLOG2DEV(y)),
+ m_MGLDC->unpackColorFast(m_MGLDC->getPixel(XLOG2DEV(x), YLOG2DEV(y)),
r, g, b);
col->Set(r, g, b);
return TRUE;
int h = 0;
GetSize(&w, &h);
m_MGLDC->makeCurrent(); // will go away with MGL6.0
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
wxCoord xx = XLOG2DEV(x);
wxCoord yy = YLOG2DEV(y);
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
m_MGLDC->makeCurrent(); // will go away with MGL6.0
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
- m_MGLDC->lineExt(XLOG2DEV(x1) + m_penOfsX, YLOG2DEV(y1) + m_penOfsY,
+ m_MGLDC->lineExt(XLOG2DEV(x1) + m_penOfsX, YLOG2DEV(y1) + m_penOfsY,
XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY,FALSE);
CalcBoundingBox(x1, y1);
CalcBoundingBox(x2, y2);
m_MGLDC->makeCurrent(); // will go away with MGL6.0
if ( m_brush.GetStyle() != wxTRANSPARENT )
{
- if ( !m_brushSelected )
+ if ( !m_brushSelected )
SelectBrush();
m_MGLDC->fillEllipseArc(xxc, yyc, r, r, alpha1, alpha2);
- }
+ }
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
m_MGLDC->ellipseArc(xxc + m_penOfsX, yyc + m_penOfsY, r, r, alpha1, alpha2);
- }
+ }
CalcBoundingBox(xc - r, yc - r);
CalcBoundingBox(xc + r, yc + r);
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
m_MGLDC->makeCurrent(); // will go away with MGL6.0
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
m_MGLDC->pixel(XLOG2DEV(x), YLOG2DEV(y));
CalcBoundingBox(x, y);
{
wxCHECK_RET( Ok(), wxT("invalid dc") );
- wxCoord xxoffset = XLOG2DEVREL(xoffset),
+ wxCoord xxoffset = XLOG2DEVREL(xoffset),
yyoffset = YLOG2DEVREL(yoffset);
- MGLPoint *cpoints = new MGLPoint[n+1];
+ MGLPoint *cpoints = new MGLPoint[n+1];
for (int i = 0; i < n; i++)
{
CalcBoundingBox(points[i].x + xoffset, points[i].y + yoffset);
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
if (m_penOfsX != 0 || m_penOfsY != 0)
{
{
MGLPoint *cpoints = new MGLPoint[n];
m_MGLDC->makeCurrent(); // will go away with MGL6.0
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
for (int i = 0; i < n; i++)
{
if ( ww == 0 || hh == 0 ) return;
- if ( ww < 0 )
+ if ( ww < 0 )
{
- ww = -ww;
+ ww = -ww;
xx = xx - ww;
}
- if ( hh < 0 )
+ if ( hh < 0 )
{
- hh = -hh;
- yy = yy - hh;
+ hh = -hh;
+ yy = yy - hh;
}
m_MGLDC->makeCurrent(); // will go away with MGL6.0
if ( m_brush.GetStyle() != wxTRANSPARENT )
{
- if ( !m_brushSelected )
+ if ( !m_brushSelected )
SelectBrush();
m_MGLDC->fillRect(xx, yy, xx + ww, yy + hh);
- }
+ }
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
- m_MGLDC->rect(xx + m_penOfsX, yy + m_penOfsY,
+ m_MGLDC->rect(xx + m_penOfsX, yy + m_penOfsY,
xx + ww + m_penOfsX, yy + hh + m_penOfsY);
- }
+ }
CalcBoundingBox(x, y);
CalcBoundingBox(x + width, y + height);
{
wxCHECK_RET( Ok(), wxT("invalid dc") );
- if ( radius < 0.0 )
+ if ( radius < 0.0 )
radius = -radius * ((width < height) ? width : height);
wxCoord xx = XLOG2DEV(x);
wxCoord rr = XLOG2DEVREL((wxCoord)radius);
// CMB: handle -ve width and/or height
- if ( ww < 0 )
+ if ( ww < 0 )
{
- ww = -ww;
- xx = xx - ww;
+ ww = -ww;
+ xx = xx - ww;
}
- if ( hh < 0 )
- {
- hh = -hh;
- yy = yy - hh;
+ if ( hh < 0 )
+ {
+ hh = -hh;
+ yy = yy - hh;
}
// CMB: if radius is zero use DrawRectangle() instead to avoid
m_MGLDC->makeCurrent(); // will go away with MGL6.0
if ( m_brush.GetStyle() != wxTRANSPARENT )
{
- if (!m_brushSelected)
+ if (!m_brushSelected)
SelectBrush();
m_MGLDC->fillRect(xx+rr, yy, xx+ww-rr, yy+hh);
m_MGLDC->fillRect(xx, yy+rr, xx+ww, yy+hh-rr);
m_MGLDC->fillEllipseArc(xx+ww-rr, yy+rr, rr, rr, 0, 90);
m_MGLDC->fillEllipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270);
m_MGLDC->fillEllipseArc(xx+ww-rr, yy+hh-rr, rr, rr, 270, 0);
- }
+ }
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
xx += m_penOfsX;
yy += m_penOfsY;
- m_MGLDC->line(xx+rr+1, yy, xx+ww-rr, yy);
+ m_MGLDC->line(xx+rr+1, yy, xx+ww-rr, yy);
m_MGLDC->ellipseArc(xx+ww-rr, yy+rr, rr, rr, 0, 90);
m_MGLDC->line(xx+ww, yy+rr+1, xx+ww, yy+hh-rr);
m_MGLDC->ellipseArc(xx+ww-rr, yy+hh-rr, rr, rr, 270, 0);
m_MGLDC->line(xx+ww-rr, yy+hh, xx+rr+1, yy+hh);
- m_MGLDC->ellipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270);
+ m_MGLDC->ellipseArc(xx+rr, yy+hh-rr, rr, rr, 180, 270);
m_MGLDC->line(xx, yy+hh-rr, xx, yy+rr+1);
m_MGLDC->ellipseArc(xx+rr, yy+rr, rr, rr, 90, 180);
}
SelectBrush();
MGLRect rect(XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
m_MGLDC->fillEllipse(rect);
- }
+ }
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
- MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY,
+ MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY,
XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY);
m_MGLDC->ellipse(rect);
}
if (!m_brushSelected) SelectBrush();
MGLRect rect(XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
m_MGLDC->fillEllipseArc(rect, (int)sa, (int)ea);
- }
+ }
if ( m_pen.GetStyle() != wxTRANSPARENT )
{
- if ( !m_penSelected )
+ if ( !m_penSelected )
SelectPen();
- MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY,
+ MGLRect rect(XLOG2DEV(x) + m_penOfsX, YLOG2DEV(y) + m_penOfsY,
XLOG2DEV(x2) + m_penOfsX, YLOG2DEV(y2) + m_penOfsY);
m_MGLDC->ellipseArc(rect, (int)sa, (int)ea);
- }
+ }
CalcBoundingBox(x, y);
CalcBoundingBox(x2, y2);
m_mglFont = m_font.GetMGLfont_t(scale, antialiased);
wxCHECK_MSG( m_mglFont, FALSE, wxT("invalid font") );
-
+
m_MGLDC->useFont(m_mglFont);
wxLogTrace("mgl_font", "useFont(%p)", m_mglFont);
// Render the text:
wxCoord xx = XLOG2DEV(x);
wxCoord yy = YLOG2DEV(y);
-
+
m_MGLDC->setLineStyle(MGL_LINE_STIPPLE);
m_MGLDC->setLineStipple(0xFFFF);
m_MGLDC->setPenSize(1, 1);
const char *c_text = text.c_str();
#endif
-#if 1
- // FIXME_MGL - this is a temporary hack in absence of proper
- // implementation of solid text background in MGL. Once
+#if 1
+ // FIXME_MGL - this is a temporary hack in absence of proper
+ // implementation of solid text background in MGL. Once
// the bug in MGL is fixed, this code should be nuked
// immediately. Note that the code is not 100% correct;
// it only works with wxCOPY logical function
m_textForegroundColour.Green(), m_textForegroundColour.Blue()));
m_MGLDC->setBackColor(m_MGLDC->packColorFast(m_textBackgroundColour.Red(),
m_textBackgroundColour.Green(), m_textBackgroundColour.Blue()));
-
+
m_MGLDC->drawStr(xx, yy, c_text);
-
+
// Render underline:
if ( m_font.GetUnderlined() )
{
double angle)
{
m_MGLDC->makeCurrent(); // will go away with MGL6.0
-
+
if ( angle == 0 )
{
DoDrawText(text, x, y);
wxFAIL_MSG(wxT("wxMGL only supports rotated text with angle 0,90,180 or 270"));
return;
}
-
+
DrawAnyText(text, x, y);
-
+
// Restore default:
m_MGLDC->setTextDirection(MGL_RIGHT_DIR);
}
// switch between pens and brushes, we take advantage of MGL's ability
// to have multiple (pix)pattern_t's loaded. We always download pen
// to 0th slot and brush to 1st slot.
- if ( flag == wxMGL_SELECT_FROM_PEN )
+ if ( flag == wxMGL_SELECT_FROM_PEN )
slot = 0;
else
slot = 1;
- // compute pen's width:
+ // compute pen's width:
if ( m_pen.GetWidth() <= 1 )
{
wx = wy = 1;
m_penOfsX = m_penOfsY = 0;
}
else
- {
+ {
wx = (int)(0.5 + fabs((double) XLOG2DEVREL(m_pen.GetWidth())));
wy = (int)(0.5 + fabs((double) YLOG2DEVREL(m_pen.GetWidth())));
m_penOfsX = -wx/2;
m_penOfsY = -wy/2;
}
-
+
// find pen's type:
penstyle = MGL_BITMAP_TRANSPARENT;
switch (style)
{
- case wxBDIAGONAL_HATCH: pattern = &PATTERN_wxBDIAGONAL_HATCH;
- penstyle = MGL_BITMAP_TRANSPARENT;
+ case wxBDIAGONAL_HATCH: pattern = &PATTERN_wxBDIAGONAL_HATCH;
+ penstyle = MGL_BITMAP_TRANSPARENT;
break;
- case wxCROSSDIAG_HATCH: pattern = &PATTERN_wxCROSSDIAG_HATCH;
- penstyle = MGL_BITMAP_TRANSPARENT;
+ case wxCROSSDIAG_HATCH: pattern = &PATTERN_wxCROSSDIAG_HATCH;
+ penstyle = MGL_BITMAP_TRANSPARENT;
break;
case wxFDIAGONAL_HATCH: pattern = &PATTERN_wxFDIAGONAL_HATCH;
- penstyle = MGL_BITMAP_TRANSPARENT;
+ penstyle = MGL_BITMAP_TRANSPARENT;
break;
case wxCROSS_HATCH: pattern = &PATTERN_wxCROSS_HATCH;
- penstyle = MGL_BITMAP_TRANSPARENT;
+ penstyle = MGL_BITMAP_TRANSPARENT;
break;
case wxHORIZONTAL_HATCH: pattern = &PATTERN_wxHORIZONTAL_HATCH;
- penstyle = MGL_BITMAP_TRANSPARENT;
+ penstyle = MGL_BITMAP_TRANSPARENT;
break;
case wxVERTICAL_HATCH: pattern = &PATTERN_wxVERTICAL_HATCH;
- penstyle = MGL_BITMAP_TRANSPARENT;
+ penstyle = MGL_BITMAP_TRANSPARENT;
break;
-
+
case wxSTIPPLE:
- if ( flag == wxMGL_SELECT_FROM_PEN )
+ if ( flag == wxMGL_SELECT_FROM_PEN )
pixPattern = (pixpattern24_t*) m_pen.GetPixPattern();
else
pixPattern = (pixpattern24_t*) m_brush.GetPixPattern();
penstyle = MGL_PIXMAP;
break;
-
+
case wxSTIPPLE_MASK_OPAQUE:
pattern = (pattern_t*) m_brush.GetMaskPattern();
penstyle = MGL_BITMAP_OPAQUE;
break;
-
+
case wxSOLID:
default:
penstyle = MGL_BITMAP_SOLID; break;
}
m_MGLDC->usePenBitmapPattern(slot);
}
-
+
if ( pixPattern )
{
if ( !m_downloadedPatterns[slot] )
{
pixpattern_t pix;
int x, y, c;
-
+
switch (GetDepth())
{
case 8:
}
m_MGLDC->usePenPixmapPattern(slot);
}
-
+
m_MGLDC->setLineStyle(MGL_LINE_PENSTYLE);
m_MGLDC->setPenStyle(penstyle);
m_MGLDC->setPenSize(wy, wx);
case wxDOT_DASH:
SelectMGLStipplePen(m_pen.GetStyle());
break;
-
+
case wxBDIAGONAL_HATCH:
case wxCROSSDIAG_HATCH:
case wxFDIAGONAL_HATCH:
wxColour fg, bg;
m_MGLDC->makeCurrent(); // will go away with MGL6.0
-
+
if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
{
fg = m_textForegroundColour;
void wxDC::SetPalette(const wxPalette& palette)
{
wxCHECK_RET( Ok(), wxT("invalid dc") );
-
+
if ( palette == wxNullPalette )
{
if ( m_oldPalette.Ok() )
m_palette = palette;
int cnt = m_palette.GetColoursCount();
- palette_t *pal = m_palette.GetMGLpalette_t();
+ palette_t *pal = m_palette.GetMGLpalette_t();
m_MGLDC->setPalette(pal, cnt, 0);
m_MGLDC->realizePalette(cnt, 0, TRUE);
}
wxFont *theFont) const
{
wxFont oldFont;
-
+
if ( theFont != NULL )
{
oldFont = m_font;
wxConstCast(this, wxDC)->SetFont(*theFont);
}
-
+
wxCurrentDCSwitcher switcher(m_MGLDC);
if ( !wxConstCast(this, wxDC)->SelectMGLFont() ) return;
if ( x )
- // VS: YDEV is corrent, it should *not* be XDEV, because font's are
+ // VS: YDEV is corrent, it should *not* be XDEV, because font's are
// only scaled according to m_scaleY
*x = YDEV2LOGREL(m_MGLDC->textWidth(string.c_str()));
if ( y )
{
double newX = m_logicalScaleX * m_userScaleX;
double newY = m_logicalScaleY * m_userScaleY;
-
+
// make sure font will be reloaded before drawing:
if ( newY != m_scaleY )
m_mglFont = NULL;
// make sure m_penOfs{X,Y} will be reevaluated before drawing:
if ( newY != m_scaleY || newX != m_scaleX )
m_penSelected = FALSE;
-
+
m_scaleX = newX, m_scaleY = newY;
}
wxSize wxDC::GetPPI() const
{
- return wxSize(int(double(m_mm_to_pix_x) * inches2mm),
+ return wxSize(int(double(m_mm_to_pix_x) * inches2mm),
int(double(m_mm_to_pix_y) * inches2mm));
}
{
wxCHECK_MSG( Ok(), FALSE, wxT("invalid dc") );
wxCHECK_MSG( source, FALSE, wxT("invalid source dc") );
-
+
// transform the source DC coords to the device ones
xsrc = source->LogicalToDeviceX(xsrc);
ysrc = source->LogicalToDeviceY(ysrc);
else
{
m_MGLDC->makeCurrent(); // will go away with MGL6.0
- m_MGLDC->bitBlt(*source->GetMGLDC(),
+ m_MGLDC->bitBlt(*source->GetMGLDC(),
xsrc, ysrc, xsrc + ww, ysrc + hh,
xx, yy, LogicalFunctionToMGLRop(rop));
}
static inline void DoBitBlt(const wxBitmap& src, MGLDevCtx *dst,
- int sx, int sy, int sw, int sh,
- int dx, int dy, int dw, int dh,
+ int sx, int sy, int sw, int sh,
+ int dx, int dy, int dw, int dh,
int rop, bool useStretching, bool putSection)
{
bitmap_t *bmp = src.GetMGLbitmap_t();
if (!putSection)
dst->stretchBitmap(dx, dy, dx + dw, dy + dh, bmp, rop);
else
- dst->stretchBitmapSection(sx, sy, sx + sw, sy + sh,
+ dst->stretchBitmapSection(sx, sy, sx + sw, sy + sh,
dx, dy, dx + dw, dy + dh, bmp, rop);
}
}
-void wxDC::DoDrawSubBitmap(const wxBitmap &bmp,
+void wxDC::DoDrawSubBitmap(const wxBitmap &bmp,
wxCoord x, wxCoord y, wxCoord w, wxCoord h,
wxCoord destx, wxCoord desty, int rop, bool useMask)
{
wxCoord dy = YLOG2DEV(desty);
wxCoord dw = XLOG2DEVREL(w);
wxCoord dh = YLOG2DEVREL(h);
-
+
m_MGLDC->makeCurrent(); // will go away with MGL6.0
-
+
bool useStretching = ((w != dw) || (h != dh));
bool putSection = (w != bmp.GetWidth() || h != bmp.GetHeight());
MGL_writeModeType mglRop = (MGL_writeModeType)LogicalFunctionToMGLRop(rop);
if ( useMask && bmp.GetMask() )
{
// Since MGL does not support masks directly (in MGL, mask is handled
- // in same way as in wxImage, i.e. there is one "key" color), we
+ // in same way as in wxImage, i.e. there is one "key" color), we
// simulate masked bitblt in 6 steps (same as in MSW):
//
- // 1. Create a temporary bitmap and copy the destination area into it.
- // 2. Copy the source area into the temporary bitmap using the
+ // 1. Create a temporary bitmap and copy the destination area into it.
+ // 2. Copy the source area into the temporary bitmap using the
// specified logical function.
- // 3. Set the masked area in the temporary bitmap to BLACK by ANDing
- // the mask bitmap with the temp bitmap with the foreground colour
+ // 3. Set the masked area in the temporary bitmap to BLACK by ANDing
+ // the mask bitmap with the temp bitmap with the foreground colour
// set to WHITE and the bg colour set to BLACK.
// 4. Set the unmasked area in the destination area to BLACK by
- // ANDing the mask bitmap with the destination area with the
+ // ANDing the mask bitmap with the destination area with the
// foreground colour set to BLACK and the background colour set
- // to WHITE.
- // 5. OR the temporary bitmap with the destination area.
- // 6. Delete the temporary bitmap.
- //
- // This sequence of operations ensures that the source's transparent
+ // to WHITE.
+ // 5. OR the temporary bitmap with the destination area.
+ // 6. Delete the temporary bitmap.
+ //
+ // This sequence of operations ensures that the source's transparent
// area need not be black, and logical functions are supported.
wxBitmap *mask = bmp.GetMask()->GetBitmap();
MGLMemoryDC *temp;
-
+
if ( GetDepth() <= 8 )
{
temp = new MGLMemoryDC(dw, dh, GetDepth(), NULL);
m_MGLDC->getPixelFormat(pf);
temp = new MGLMemoryDC(dw, dh, GetDepth(), &pf);
}
-
+
wxCHECK_RET( temp->isValid(), wxT("cannot create temporary dc") );
-
+
temp->bitBlt(*m_MGLDC, dx, dy, dx + dw, dy + dh, 0, 0, MGL_REPLACE_MODE);
- DoBitBlt(bmp, temp, x, y, w, h, 0, 0, dw, dh, mglRop,
+ DoBitBlt(bmp, temp, x, y, w, h, 0, 0, dw, dh, mglRop,
useStretching, putSection);
mask->SetMonoPalette(wxColour(0,0,0), wxColour(255,255,255));
- DoBitBlt(*mask, temp, x, y, w, h, 0, 0, dw, dh, MGL_R2_MASKSRC,
+ DoBitBlt(*mask, temp, x, y, w, h, 0, 0, dw, dh, MGL_R2_MASKSRC,
useStretching, putSection);
- DoBitBlt(*mask, m_MGLDC, x, y, w, h, dx, dy, dw, dh, MGL_R2_MASKNOTSRC,
+ DoBitBlt(*mask, m_MGLDC, x, y, w, h, dx, dy, dw, dh, MGL_R2_MASKNOTSRC,
useStretching, putSection);
m_MGLDC->bitBlt(*temp, 0, 0, dw, dh, dx, dy, MGL_OR_MODE);
-
+
delete temp;
}
-
+
else
{
- DoBitBlt(bmp, m_MGLDC, x, y, w, h, dx, dy, dw, dh, mglRop,
+ DoBitBlt(bmp, m_MGLDC, x, y, w, h, dx, dy, dw, dh, mglRop,
useStretching, putSection);
}
}
projects / wxWidgets.git / blobdiff