+void wxWindowDC::DoDrawLines( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (m_pen.GetStyle() == wxTRANSPARENT) return;
+ if (n <= 0) return;
+
+ CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
+
+ for (int i = 0; i < n-1; i++)
+ {
+ wxCoord x1 = XLOG2DEV(points[i].x + xoffset);
+ wxCoord x2 = XLOG2DEV(points[i+1].x + xoffset);
+ wxCoord y1 = YLOG2DEV(points[i].y + yoffset); // oh, what a waste
+ wxCoord y2 = YLOG2DEV(points[i+1].y + yoffset);
+
+ if (m_window)
+ gdk_draw_line( m_window, m_penGC, x1, y1, x2, y2 );
+
+ CalcBoundingBox( points[i+1].x + xoffset, points[i+1].y + yoffset );
+ }
+}
+
+void wxWindowDC::DoDrawPolygon( int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle) )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (n <= 0) return;
+
+ GdkPoint *gdkpoints = new GdkPoint[n+1];
+ int i;
+ for (i = 0 ; i < n ; i++)
+ {
+ gdkpoints[i].x = XLOG2DEV(points[i].x + xoffset);
+ gdkpoints[i].y = YLOG2DEV(points[i].y + yoffset);
+
+ CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset );
+ }
+
+ if (m_window)
+ {
+ if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
+ gdk_draw_polygon (m_window, m_textGC, TRUE, gdkpoints, n);
+ else
+ {
+ if ((m_brush.GetStyle() != wxTRANSPARENT))
+ gdk_draw_polygon (m_window, m_brushGC, TRUE, gdkpoints, n);
+ }
+ }
+
+ // To do: Fillstyle
+
+ if ((m_pen.GetStyle() != wxTRANSPARENT) && m_window)
+ {
+ for (i = 0 ; i < n ; i++)
+ {
+ gdk_draw_line( m_window, m_penGC,
+ gdkpoints[i%n].x,
+ gdkpoints[i%n].y,
+ gdkpoints[(i+1)%n].x,
+ gdkpoints[(i+1)%n].y);
+ }
+ }
+
+ delete[] gdkpoints;
+}
+
+void wxWindowDC::DoDrawRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+
+ // CMB: draw nothing if transformed w or h is 0
+ if (ww == 0 || hh == 0) return;
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ if (m_window)
+ {
+ if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
+ {
+ gdk_draw_rectangle( m_window, m_textGC, TRUE, xx, yy, ww, hh );
+ gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
+ }
+ else
+ {
+ if (m_brush.GetStyle() != wxTRANSPARENT)
+ gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy, ww, hh );
+
+ if (m_pen.GetStyle() != wxTRANSPARENT)
+ gdk_draw_rectangle( m_window, m_penGC, FALSE, xx, yy, ww-1, hh-1 );
+ }
+ }
+
+ CalcBoundingBox( x, y );
+ CalcBoundingBox( x + width, y + height );
+}
+
+void wxWindowDC::DoDrawRoundedRectangle( wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (radius < 0.0) radius = - radius * ((width < height) ? width : height);
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+ wxCoord rr = XLOG2DEVREL((wxCoord)radius);
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ // CMB: if radius is zero use DrawRectangle() instead to avoid
+ // X drawing errors with small radii
+ if (rr == 0)
+ {
+ DrawRectangle( x, y, width, height );
+ return;
+ }
+
+ // CMB: draw nothing if transformed w or h is 0
+ if (ww == 0 || hh == 0) return;
+
+ // CMB: adjust size if outline is drawn otherwise the result is
+ // 1 pixel too wide and high
+ if (m_pen.GetStyle() != wxTRANSPARENT)
+ {
+ ww--;
+ hh--;
+ }
+
+ if (m_window)
+ {
+ // CMB: ensure dd is not larger than rectangle otherwise we
+ // get an hour glass shape
+ wxCoord dd = 2 * rr;
+ if (dd > ww) dd = ww;
+ if (dd > hh) dd = hh;
+ rr = dd / 2;
+
+ if (m_brush.GetStyle() != wxTRANSPARENT)
+ {
+ gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx+rr, yy, ww-dd+1, hh );
+ gdk_draw_rectangle( m_window, m_brushGC, TRUE, xx, yy+rr, ww, hh-dd+1 );
+ gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, dd, dd, 90*64, 90*64 );
+ gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
+ gdk_draw_arc( m_window, m_brushGC, TRUE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
+ gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
+ }
+
+ if (m_pen.GetStyle() != wxTRANSPARENT)
+ {
+ gdk_draw_line( m_window, m_penGC, xx+rr, yy, xx+ww-rr, yy );
+ gdk_draw_line( m_window, m_penGC, xx+rr, yy+hh, xx+ww-rr, yy+hh );
+ gdk_draw_line( m_window, m_penGC, xx, yy+rr, xx, yy+hh-rr );
+ gdk_draw_line( m_window, m_penGC, xx+ww, yy+rr, xx+ww, yy+hh-rr );
+ gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, dd, dd, 90*64, 90*64 );
+ gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy, dd, dd, 0, 90*64 );
+ gdk_draw_arc( m_window, m_penGC, FALSE, xx+ww-dd, yy+hh-dd, dd, dd, 270*64, 90*64 );
+ gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy+hh-dd, dd, dd, 180*64, 90*64 );
+ }
+ }
+
+ // this ignores the radius
+ CalcBoundingBox( x, y );
+ CalcBoundingBox( x + width, y + height );
+}
+
+void wxWindowDC::DoDrawEllipse( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ wxCoord xx = XLOG2DEV(x);
+ wxCoord yy = YLOG2DEV(y);
+ wxCoord ww = m_signX * XLOG2DEVREL(width);
+ wxCoord hh = m_signY * YLOG2DEVREL(height);
+
+ // CMB: handle -ve width and/or height
+ if (ww < 0) { ww = -ww; xx = xx - ww; }
+ if (hh < 0) { hh = -hh; yy = yy - hh; }
+
+ if (m_window)
+ {
+ if (m_brush.GetStyle() != wxTRANSPARENT)
+ gdk_draw_arc( m_window, m_brushGC, TRUE, xx, yy, ww, hh, 0, 360*64 );
+
+ if (m_pen.GetStyle() != wxTRANSPARENT)
+ gdk_draw_arc( m_window, m_penGC, FALSE, xx, yy, ww, hh, 0, 360*64 );
+ }
+
+ CalcBoundingBox( x - width, y - height );
+ CalcBoundingBox( x + width, y + height );
+}
+
+void wxWindowDC::DoDrawIcon( const wxIcon &icon, wxCoord x, wxCoord y )
+{
+ // VZ: egcs 1.0.3 refuses to compile this without cast, no idea why
+ DoDrawBitmap( (const wxBitmap&)icon, x, y, (bool)TRUE );
+}
+
+void wxWindowDC::DoDrawBitmap( const wxBitmap &bitmap,
+ wxCoord x, wxCoord y,
+ bool useMask )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") );
+
+ bool is_mono = (bitmap.GetBitmap() != NULL);
+
+ /* scale/translate size and position */
+
+ int xx = XLOG2DEV(x);
+ int yy = YLOG2DEV(y);
+
+ int w = bitmap.GetWidth();
+ int h = bitmap.GetHeight();
+
+ CalcBoundingBox( x, y );
+ CalcBoundingBox( x + w, y + h );
+
+ if (!m_window) return;
+
+ int ww = XLOG2DEVREL(w);
+ int hh = YLOG2DEVREL(h);
+
+ /* scale bitmap if required */
+
+ wxBitmap use_bitmap;
+
+ if ((w != ww) || (h != hh))
+ {
+ wxImage image( bitmap );
+ image.Rescale( ww, hh );
+ if (is_mono)
+ use_bitmap = image.ConvertToMonoBitmap(255,255,255);
+ else
+ use_bitmap = image.ConvertToBitmap();
+ }
+ else
+ {
+ use_bitmap = bitmap;
+ }
+
+ /* apply mask if any */
+
+ GdkBitmap *mask = (GdkBitmap *) NULL;
+ if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
+
+ if (useMask && mask)
+ {
+ if (is_mono)
+ {
+ gdk_gc_set_clip_mask( m_textGC, mask );
+ gdk_gc_set_clip_origin( m_textGC, xx, yy );
+ }
+ else
+ {
+ gdk_gc_set_clip_mask( m_penGC, mask );
+ gdk_gc_set_clip_origin( m_penGC, xx, yy );
+ }
+ }
+
+ /* Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
+ drawing a mono-bitmap (XBitmap) we use the current text GC */
+ if (is_mono)
+ gdk_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), 0, 0, xx, yy, -1, -1 );
+ else
+ gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
+
+ /* remove mask again if any */
+
+ if (useMask && mask)
+ {
+ if (is_mono)
+ {
+ gdk_gc_set_clip_mask( m_textGC, (GdkBitmap *) NULL );
+ gdk_gc_set_clip_origin( m_textGC, 0, 0 );
+ }
+ else
+ {
+ gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
+ gdk_gc_set_clip_origin( m_penGC, 0, 0 );
+ }
+ }
+}
+
+bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
+ wxDC *source, wxCoord xsrc, wxCoord ysrc,
+ int logical_func, bool useMask )
+{
+ /* this is the nth try to get this utterly useless function to
+ work. it now completely ignores the scaling or translation
+ of the source dc, but scales correctly on the target dc and
+ knows about possible mask information in a memory dc. */
+
+ wxCHECK_MSG( Ok(), FALSE, wxT("invalid window dc") );
+
+ wxCHECK_MSG( source, FALSE, wxT("invalid source dc") );
+
+ if (!m_window) return FALSE;
+
+ wxClientDC *srcDC = (wxClientDC*)source;
+ wxMemoryDC *memDC = (wxMemoryDC*)source;
+
+ bool use_bitmap_method = FALSE;
+ bool is_mono = FALSE;
+
+ if (srcDC->m_isMemDC)
+ {
+ if (!memDC->m_selected.Ok()) return FALSE;
+
+ /* we use the "XCopyArea" way to copy a memory dc into
+ y different window if the memory dc BOTH
+ a) doesn't have any mask or its mask isn't used
+ b) it is clipped
+ c) is not 1-bit */
+
+ if (useMask && (memDC->m_selected.GetMask()))
+ {
+ /* we HAVE TO use the direct way for memory dcs
+ that have mask since the XCopyArea doesn't know
+ about masks */
+ use_bitmap_method = TRUE;
+ }
+ else if (memDC->m_selected.GetDepth() == 1)
+ {
+ /* we HAVE TO use the direct way for memory dcs
+ that are bitmaps because XCopyArea doesn't cope
+ with different bit depths */
+ is_mono = TRUE;
+ use_bitmap_method = TRUE;
+ }
+ else if ((xsrc == 0) && (ysrc == 0) &&
+ (width == memDC->m_selected.GetWidth()) &&
+ (height == memDC->m_selected.GetHeight()))
+ {
+ /* we SHOULD use the direct way if all of the bitmap
+ in the memory dc is copied in which case XCopyArea
+ wouldn't be able able to boost performace by reducing
+ the area to be scaled */
+ use_bitmap_method = TRUE;
+ }
+ else
+ {
+ use_bitmap_method = FALSE;
+ }
+ }
+
+ CalcBoundingBox( xdest, ydest );
+ CalcBoundingBox( xdest + width, ydest + height );
+
+ int old_logical_func = m_logicalFunction;
+ SetLogicalFunction( logical_func );
+
+ if (use_bitmap_method)
+ {
+ /* scale/translate bitmap size */
+
+ wxCoord bm_width = memDC->m_selected.GetWidth();
+ wxCoord bm_height = memDC->m_selected.GetHeight();
+
+ wxCoord bm_ww = XLOG2DEVREL( bm_width );
+ wxCoord bm_hh = YLOG2DEVREL( bm_height );
+
+ /* scale bitmap if required */
+
+ wxBitmap use_bitmap;
+
+ if ((bm_width != bm_ww) || (bm_height != bm_hh))
+ {
+ wxImage image( memDC->m_selected );
+ image = image.Scale( bm_ww, bm_hh );
+
+ if (is_mono)
+ use_bitmap = image.ConvertToMonoBitmap(255,255,255);
+ else
+ use_bitmap = image.ConvertToBitmap();
+ }
+ else
+ {
+ use_bitmap = memDC->m_selected;
+ }
+
+ /* scale/translate size and position */
+
+ wxCoord xx = XLOG2DEV(xdest);
+ wxCoord yy = YLOG2DEV(ydest);
+
+ wxCoord ww = XLOG2DEVREL(width);
+ wxCoord hh = YLOG2DEVREL(height);
+
+ /* apply mask if any */
+
+ GdkBitmap *mask = (GdkBitmap *) NULL;
+ if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
+
+ if (useMask && mask)
+ {
+ if (is_mono)
+ {
+ gdk_gc_set_clip_mask( m_textGC, mask );
+ gdk_gc_set_clip_origin( m_textGC, xx, yy );
+ }
+ else
+ {
+ gdk_gc_set_clip_mask( m_penGC, mask );
+ gdk_gc_set_clip_origin( m_penGC, xx, yy );
+ }
+ }
+
+ /* Draw XPixmap or XBitmap, depending on what the wxBitmap contains. For
+ drawing a mono-bitmap (XBitmap) we use the current text GC */
+ if (is_mono)
+ gdk_draw_bitmap( m_window, m_textGC, use_bitmap.GetBitmap(), xsrc, ysrc, xx, yy, ww, hh );
+ else
+ gdk_draw_pixmap( m_window, m_penGC, use_bitmap.GetPixmap(), xsrc, ysrc, xx, yy, ww, hh );
+
+ /* remove mask again if any */
+
+ if (useMask && mask)
+ {
+ if (is_mono)
+ {
+ gdk_gc_set_clip_mask( m_textGC, (GdkBitmap *) NULL );
+ gdk_gc_set_clip_origin( m_textGC, 0, 0 );
+ }
+ else
+ {
+ gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
+ gdk_gc_set_clip_origin( m_penGC, 0, 0 );
+ }
+ }
+ }
+ else /* use_bitmap_method */
+ {
+ /* scale/translate size and position */
+
+ wxCoord xx = XLOG2DEV(xdest);
+ wxCoord yy = YLOG2DEV(ydest);
+
+ wxCoord ww = XLOG2DEVREL(width);
+ wxCoord hh = YLOG2DEVREL(height);
+
+ if ((width != ww) || (height != hh))
+ {
+ /* draw source window into a bitmap as we cannot scale
+ a window in contrast to a bitmap. this would actually
+ work with memory dcs as well, but we'd lose the mask
+ information and waste one step in this process since
+ a memory already has a bitmap. all this is slightly
+ inefficient as we could take an XImage directly from
+ an X window, but we'd then also have to care that
+ the window is not outside the screen (in which case
+ we'd get a BadMatch or what not).
+ Is a double XGetImage and combined XGetPixel and
+ XPutPixel really faster? I'm not sure. look at wxXt
+ for a different implementation of the same problem. */
+
+ wxBitmap bitmap( width, height );
+ gdk_window_copy_area( bitmap.GetPixmap(), m_penGC, 0, 0,
+ srcDC->GetWindow(),
+ xsrc, ysrc, width, height );
+
+ /* scale image */
+
+ wxImage image( bitmap );
+ image = image.Scale( ww, hh );
+
+ /* convert to bitmap */
+
+ bitmap = image.ConvertToBitmap();
+
+ /* draw scaled bitmap */
+
+ gdk_draw_pixmap( m_window, m_penGC, bitmap.GetPixmap(), 0, 0, xx, yy, -1, -1 );
+
+ }
+ else
+ {
+ /* no scaling and not a memory dc with a mask either */
+
+ gdk_window_copy_area( m_window, m_penGC, xx, yy,
+ srcDC->GetWindow(),
+ xsrc, ysrc, width, height );
+ }
+ }
+
+ SetLogicalFunction( old_logical_func );
+ return TRUE;
+}
+
+void wxWindowDC::DoDrawText( const wxString &text, wxCoord x, wxCoord y )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (!m_window) return;
+
+ GdkFont *font = m_font.GetInternalFont( m_scaleY );
+
+ wxCHECK_RET( font, wxT("invalid font") );
+
+ x = XLOG2DEV(x);
+ y = YLOG2DEV(y);
+
+ /* CMB 21/5/98: draw text background if mode is wxSOLID */
+ if (m_backgroundMode == wxSOLID)
+ {
+ wxCoord width = gdk_string_width( font, text.mbc_str() );
+ wxCoord height = font->ascent + font->descent;
+ gdk_gc_set_foreground( m_textGC, m_textBackgroundColour.GetColor() );
+ gdk_draw_rectangle( m_window, m_textGC, TRUE, x, y, width, height );
+ gdk_gc_set_foreground( m_textGC, m_textForegroundColour.GetColor() );
+ }
+ gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text.mbc_str() );
+
+ /* CMB 17/7/98: simple underline: ignores scaling and underlying
+ X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS
+ properties (see wxXt implementation) */
+ if (m_font.GetUnderlined())
+ {
+ wxCoord width = gdk_string_width( font, text.mbc_str() );
+ wxCoord ul_y = y + font->ascent;
+ if (font->descent > 0) ul_y++;
+ gdk_draw_line( m_window, m_textGC, x, ul_y, x + width, ul_y);
+ }
+
+ wxCoord w, h;
+ GetTextExtent (text, &w, &h);
+ CalcBoundingBox (x + w, y + h);
+ CalcBoundingBox (x, y);
+}
+
+void wxWindowDC::DoDrawRotatedText( const wxString &text, wxCoord x, wxCoord y, double angle )
+{
+ if (angle == 0.0)
+ {
+ DrawText(text, x, y);
+ return;
+ }
+
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (!m_window) return;
+
+ GdkFont *font = m_font.GetInternalFont( m_scaleY );
+
+ wxCHECK_RET( font, wxT("invalid font") );
+
+ // the size of the text
+ wxCoord w = gdk_string_width( font, text.mbc_str() );
+ wxCoord h = font->ascent + font->descent;
+
+ // draw the string normally
+ wxBitmap src(w, h);
+ wxMemoryDC dc;
+ dc.SelectObject(src);
+ dc.SetFont(GetFont());
+ dc.SetBackground(*wxWHITE_BRUSH);
+ dc.SetBrush(*wxBLACK_BRUSH);
+ dc.Clear();
+ dc.DrawText(text, 0, 0);
+ dc.SetFont(wxNullFont);
+ dc.SelectObject(wxNullBitmap);
+
+ // Calculate the size of the rotated bounding box.
+ double rad = DegToRad(angle);
+ double dx = cos(rad),
+ dy = sin(rad);
+
+ // the rectngle vertices are counted clockwise with the first one being at
+ // (0, 0) (or, rather, at (x, y))
+ double x2 = w*dx,
+ y2 = -w*dy; // y axis points to the bottom, hence minus
+ double x4 = h*dy,
+ y4 = h*dx;
+ double x3 = x4 + x2,
+ y3 = y4 + y2;
+
+ // calc max and min
+ wxCoord maxX = (wxCoord)(dmax(x2, dmax(x3, x4)) + 0.5),
+ maxY = (wxCoord)(dmax(y2, dmax(y3, y4)) + 0.5),
+ minX = (wxCoord)(dmin(x2, dmin(x3, x4)) - 0.5),
+ minY = (wxCoord)(dmin(y2, dmin(y3, y4)) - 0.5);
+
+ // prepare to blit-with-rotate the bitmap to the DC
+ wxImage image(src);
+
+ GdkColor *colText = m_textForegroundColour.GetColor(),
+ *colBack = m_textBackgroundColour.GetColor();
+
+ bool textColSet = TRUE;
+
+ unsigned char *data = image.GetData();
+
+ // paint pixel by pixel
+ for ( wxCoord srcX = 0; srcX < w; srcX++ )
+ {
+ for ( wxCoord srcY = 0; srcY < h; srcY++ )
+ {
+ // transform source coords to dest coords
+ double r = sqrt(srcX*srcX + srcY*srcY);
+ double angleOrig = atan2(srcY, srcX) - rad;
+ wxCoord dstX = (wxCoord)(r*cos(angleOrig) + 0.5),
+ dstY = (wxCoord)(r*sin(angleOrig) + 0.5);
+
+ // black pixel?
+ bool textPixel = data[(srcY*w + srcX)*3] == 0;
+ if ( textPixel || (m_backgroundMode == wxSOLID) )
+ {
+ // change colour if needed
+ if ( textPixel != textColSet )
+ {
+ gdk_gc_set_foreground( m_textGC, textPixel ? colText
+ : colBack );
+
+ textColSet = textPixel;
+ }
+
+ // don't use DrawPoint() because it uses the current pen
+ // colour, and we don't need it here
+ gdk_draw_point( m_window, m_textGC,
+ XLOG2DEV(x + dstX), YLOG2DEV(y + dstY) );
+ }
+ }
+ }
+
+ // it would be better to draw with non underlined font and draw the line
+ // manually here (it would be more straight...)
+#if 0
+ if ( m_font.GetUnderlined() )
+ {
+ gdk_draw_line( m_window, m_textGC,
+ XLOG2DEV(x + x4), YLOG2DEV(y + y4 + font->descent),
+ XLOG2DEV(x + x3), YLOG2DEV(y + y3 + font->descent));
+ }
+#endif // 0
+
+ // restore the font colour
+ gdk_gc_set_foreground( m_textGC, colText );
+
+ // update the bounding box
+ CalcBoundingBox(x + minX, y + minY);
+ CalcBoundingBox(x + maxX, y + maxY);
+}
+
+void wxWindowDC::DoGetTextExtent(const wxString &string,
+ wxCoord *width, wxCoord *height,
+ wxCoord *descent, wxCoord *externalLeading,
+ wxFont *theFont) const
+{
+ wxFont fontToUse = m_font;
+ if (theFont) fontToUse = *theFont;
+
+ GdkFont *font = fontToUse.GetInternalFont( m_scaleY );
+ if (width) (*width) = wxCoord(gdk_string_width( font, string.mbc_str() ) / m_scaleX);
+ if (height) (*height) = wxCoord((font->ascent + font->descent) / m_scaleY);
+ if (descent) (*descent) = wxCoord(font->descent / m_scaleY);
+ if (externalLeading) (*externalLeading) = 0; // ??
+}
+
+wxCoord wxWindowDC::GetCharWidth() const
+{
+ GdkFont *font = m_font.GetInternalFont( m_scaleY );
+ wxCHECK_MSG( font, -1, wxT("invalid font") );
+
+ return wxCoord(gdk_string_width( font, "H" ) / m_scaleX);
+}
+
+wxCoord wxWindowDC::GetCharHeight() const
+{
+ GdkFont *font = m_font.GetInternalFont( m_scaleY );
+ wxCHECK_MSG( font, -1, wxT("invalid font") );
+
+ return wxCoord((font->ascent + font->descent) / m_scaleY);
+}
+
+void wxWindowDC::Clear()
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (!m_window) return;
+
+ /* - we either are a memory dc or have a window as the
+ owner. anything else shouldn't happen.
+ - we don't use gdk_window_clear() as we don't set
+ the window's background colour anymore. it is too
+ much pain to keep the DC's and the window's back-
+ ground colour in synch. */
+
+ if (m_owner)
+ {
+ int width,height;
+ m_owner->GetSize( &width, &height );
+ gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+ return;
+ }
+
+ if (m_isMemDC)
+ {
+ int width,height;
+ GetSize( &width, &height );
+ gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+ return;
+ }
+}
+
+void wxWindowDC::SetFont( const wxFont &font )
+{
+ m_font = font;
+}
+
+void wxWindowDC::SetPen( const wxPen &pen )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (m_pen == pen) return;
+
+ m_pen = pen;
+
+ if (!m_pen.Ok()) return;
+
+ if (!m_window) return;
+
+ gint width = m_pen.GetWidth();
+ if (width <= 0)
+ {
+ // CMB: if width is non-zero scale it with the dc
+ width = 1;
+ }
+ else
+ {
+ // X doesn't allow different width in x and y and so we take
+ // the average
+ double w = 0.5 +
+ ( fabs((double) XLOG2DEVREL(width)) +
+ fabs((double) YLOG2DEVREL(width)) ) / 2.0;
+ width = (int)w;
+ }
+
+ static const char dotted[] = {1, 1};
+ static const char short_dashed[] = {2, 2};
+ static const char wxCoord_dashed[] = {2, 4};
+ static const char dotted_dashed[] = {3, 3, 1, 3};
+
+ // We express dash pattern in pen width unit, so we are
+ // independent of zoom factor and so on...
+ int req_nb_dash;
+ const char *req_dash;
+
+ GdkLineStyle lineStyle = GDK_LINE_SOLID;
+ switch (m_pen.GetStyle())
+ {
+ case wxUSER_DASH:
+ {
+ lineStyle = GDK_LINE_ON_OFF_DASH;
+ req_nb_dash = m_pen.GetDashCount();
+ req_dash = m_pen.GetDash();
+ break;
+ }
+ case wxDOT:
+ {
+ lineStyle = GDK_LINE_ON_OFF_DASH;
+ req_nb_dash = 2;
+ req_dash = dotted;
+ break;
+ }
+ case wxLONG_DASH:
+ {
+ lineStyle = GDK_LINE_ON_OFF_DASH;
+ req_nb_dash = 2;
+ req_dash = wxCoord_dashed;
+ break;
+ }
+ case wxSHORT_DASH:
+ {
+ lineStyle = GDK_LINE_ON_OFF_DASH;
+ req_nb_dash = 2;
+ req_dash = short_dashed;
+ break;
+ }
+ case wxDOT_DASH:
+ {
+// lineStyle = GDK_LINE_DOUBLE_DASH;
+ lineStyle = GDK_LINE_ON_OFF_DASH;
+ req_nb_dash = 4;
+ req_dash = dotted_dashed;
+ break;
+ }
+
+ case wxTRANSPARENT:
+ case wxSTIPPLE_MASK_OPAQUE:
+ case wxSTIPPLE:
+ case wxSOLID:
+ default:
+ {
+ lineStyle = GDK_LINE_SOLID;
+ req_dash = (wxDash*)NULL;
+ req_nb_dash = 0;
+ break;
+ }
+ }
+
+#if (GTK_MINOR_VERSION > 0)
+ if (req_dash && req_nb_dash)
+ {
+ char *real_req_dash = new char[req_nb_dash];
+ if (real_req_dash)
+ {
+ for (int i = 0; i < req_nb_dash; i++)
+ real_req_dash[i] = req_dash[i] * width;
+ gdk_gc_set_dashes( m_penGC, 0, real_req_dash, req_nb_dash );
+ delete[] real_req_dash;
+ }
+ else
+ {
+ // No Memory. We use non-scaled dash pattern...
+ gdk_gc_set_dashes( m_penGC, 0, (char*)req_dash, req_nb_dash );
+ }
+ }
+#endif
+
+ GdkCapStyle capStyle = GDK_CAP_ROUND;
+ switch (m_pen.GetCap())
+ {
+ case wxCAP_PROJECTING: { capStyle = GDK_CAP_PROJECTING; break; }
+ case wxCAP_BUTT: { capStyle = GDK_CAP_BUTT; break; }
+ case wxCAP_ROUND:
+ default:
+ {
+ if (width <= 1)
+ {
+ width = 0;
+ capStyle = GDK_CAP_NOT_LAST;
+ }
+ else
+ {
+ capStyle = GDK_CAP_ROUND;
+ }
+ break;
+ }
+ }
+
+ GdkJoinStyle joinStyle = GDK_JOIN_ROUND;
+ switch (m_pen.GetJoin())
+ {
+ case wxJOIN_BEVEL: { joinStyle = GDK_JOIN_BEVEL; break; }
+ case wxJOIN_MITER: { joinStyle = GDK_JOIN_MITER; break; }
+ case wxJOIN_ROUND:
+ default: { joinStyle = GDK_JOIN_ROUND; break; }
+ }
+
+ gdk_gc_set_line_attributes( m_penGC, width, lineStyle, capStyle, joinStyle );
+
+ m_pen.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_penGC, m_pen.GetColour().GetColor() );
+}
+
+void wxWindowDC::SetBrush( const wxBrush &brush )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (m_brush == brush) return;
+
+ m_brush = brush;
+
+ if (!m_brush.Ok()) return;
+
+ if (!m_window) return;
+
+ m_brush.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_foreground( m_brushGC, m_brush.GetColour().GetColor() );
+
+ gdk_gc_set_fill( m_brushGC, GDK_SOLID );
+
+ if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->Ok()))
+ {
+ if (m_brush.GetStipple()->GetPixmap())
+ {
+ gdk_gc_set_fill( m_brushGC, GDK_TILED );
+ gdk_gc_set_tile( m_brushGC, m_brush.GetStipple()->GetPixmap() );
+ }
+ else
+ {
+ gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
+ gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetBitmap() );
+ }
+ }
+
+ if ((m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE) && (m_brush.GetStipple()->GetMask()))
+ {
+ gdk_gc_set_fill( m_textGC, GDK_OPAQUE_STIPPLED);
+ gdk_gc_set_stipple( m_textGC, m_brush.GetStipple()->GetMask()->GetBitmap() );
+ }
+
+ if (IS_HATCH(m_brush.GetStyle()))
+ {
+ gdk_gc_set_fill( m_brushGC, GDK_STIPPLED );
+ int num = m_brush.GetStyle() - wxBDIAGONAL_HATCH;
+ gdk_gc_set_stipple( m_brushGC, hatches[num] );
+ }
+}
+
+void wxWindowDC::SetBackground( const wxBrush &brush )
+{
+ /* CMB 21/7/98: Added SetBackground. Sets background brush
+ * for Clear() and bg colour for shapes filled with cross-hatch brush */
+
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (m_backgroundBrush == brush) return;
+
+ m_backgroundBrush = brush;
+
+ if (!m_backgroundBrush.Ok()) return;
+
+ if (!m_window) return;
+
+ m_backgroundBrush.GetColour().CalcPixel( m_cmap );
+ gdk_gc_set_background( m_brushGC, m_backgroundBrush.GetColour().GetColor() );
+ gdk_gc_set_background( m_penGC, m_backgroundBrush.GetColour().GetColor() );
+ gdk_gc_set_background( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
+ gdk_gc_set_foreground( m_bgGC, m_backgroundBrush.GetColour().GetColor() );
+
+ gdk_gc_set_fill( m_bgGC, GDK_SOLID );
+
+ if ((m_backgroundBrush.GetStyle() == wxSTIPPLE) && (m_backgroundBrush.GetStipple()->Ok()))
+ {
+ if (m_backgroundBrush.GetStipple()->GetPixmap())
+ {
+ gdk_gc_set_fill( m_bgGC, GDK_TILED );
+ gdk_gc_set_tile( m_bgGC, m_backgroundBrush.GetStipple()->GetPixmap() );
+ }
+ else
+ {
+ gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
+ gdk_gc_set_stipple( m_bgGC, m_backgroundBrush.GetStipple()->GetBitmap() );
+ }
+ }
+
+ if (IS_HATCH(m_backgroundBrush.GetStyle()))
+ {
+ gdk_gc_set_fill( m_bgGC, GDK_STIPPLED );
+ int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
+ gdk_gc_set_stipple( m_bgGC, hatches[num] );
+ }
+}
+
+void wxWindowDC::SetLogicalFunction( int function )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (m_logicalFunction == function)
+ return;
+
+ // VZ: shouldn't this be a CHECK?
+ if (!m_window)
+ return;
+
+ GdkFunction mode = GDK_COPY;
+ switch (function)
+ {
+ case wxXOR: mode = GDK_XOR; break;
+ case wxINVERT: mode = GDK_INVERT; break;
+#if (GTK_MINOR_VERSION > 0)
+ case wxOR_REVERSE: mode = GDK_OR_REVERSE; break;
+ case wxAND_REVERSE: mode = GDK_AND_REVERSE; break;
+ case wxCLEAR: mode = GDK_CLEAR; break;
+ case wxSET: mode = GDK_SET; break;
+ case wxOR_INVERT: mode = GDK_OR_INVERT; break;
+ case wxAND: mode = GDK_AND; break;
+ case wxOR: mode = GDK_OR; break;
+ case wxEQUIV: mode = GDK_EQUIV; break;
+ case wxNAND: mode = GDK_NAND; break;
+ case wxAND_INVERT: mode = GDK_AND_INVERT; break;
+ case wxCOPY: mode = GDK_COPY; break;
+ case wxNO_OP: mode = GDK_NOOP; break;
+ case wxSRC_INVERT: mode = GDK_COPY_INVERT; break;
+
+ // unsupported by GTK
+ case wxNOR: mode = GDK_COPY; break;
+#endif
+ default:
+ {
+ wxFAIL_MSG( wxT("unsupported logical function") );
+ break;
+ }
+ }
+
+ m_logicalFunction = function;
+
+ gdk_gc_set_function( m_penGC, mode );
+ gdk_gc_set_function( m_brushGC, mode );
+
+ // to stay compatible with wxMSW, we don't apply ROPs to the text
+ // operations (i.e. DrawText/DrawRotatedText)
+ // gdk_gc_set_function( m_textGC, mode );
+}
+
+void wxWindowDC::SetTextForeground( const wxColour &col )
+{
+ wxCHECK_RET( Ok(), wxT("invalid window dc") );
+
+ if (m_textForegroundColour == col) return;
+
+ m_textForegroundColour = col;
+ if (!m_textForegroundColour.Ok()) return;
+
+ if (!m_window) return;
+
+ m_textForegroundColour.CalcPixel( m_cmap );
projects / wxWidgets.git / blobdiff