m_bgGC = (GdkGC *) NULL;
m_cmap = (GdkColormap *) NULL;
m_isMemDC = FALSE;
+ m_owner = (wxWindow *)NULL;
}
wxWindowDC::wxWindowDC( wxWindow *window )
m_textGC = (GdkGC *) NULL;
m_bgGC = (GdkGC *) NULL;
m_cmap = (GdkColormap *) NULL;
+ m_owner = (wxWindow *)NULL;
if (!window) return;
GtkWidget *widget = window->m_wxwindow;
m_isMemDC = FALSE;
SetUpDC();
+
+ /* this must be done after SetUpDC, bacause SetUpDC calls the
+ repective SetBrush, SetPen, SetBackground etc functions
+ to set up the DC. SetBackground call m_owner->SetBackground
+ and this might not be desired as the standard dc background
+ is white whereas a window might assume gray to be the
+ standard (as e.g. wxStatusBar) */
+ m_owner = window;
}
wxWindowDC::~wxWindowDC()
wxCHECK_RET( Ok(), "invalid window dc" );
if (!bitmap.Ok()) return;
+
+ /* scale/translate size and position */
int xx = XLOG2DEV(x);
int yy = YLOG2DEV(y);
int ww = XLOG2DEVREL(w);
int hh = YLOG2DEVREL(h);
+ /* scale bitmap if required */
+
wxBitmap use_bitmap;
if ((w != ww) || (h != hh))
use_bitmap = bitmap;
}
+ /* apply mask if any */
+
GdkBitmap *mask = (GdkBitmap *) NULL;
if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
gdk_gc_set_clip_origin( m_penGC, xx, yy );
}
+ /* draw XPixmap or XBitmap, depending on what the wxBitmap contains */
+
GdkPixmap *pm = use_bitmap.GetPixmap();
- gdk_draw_pixmap( m_window, m_penGC, pm, 0, 0, xx, yy, -1, -1 );
-
+ if (pm)
+ {
+ gdk_draw_pixmap( m_window, m_penGC, pm, 0, 0, xx, yy, -1, -1 );
+ }
+ else
+ {
+ GdkBitmap *bm = use_bitmap.GetBitmap();
+ if (bm)
+ {
+ gdk_draw_bitmap( m_window, m_penGC, bm, 0, 0, xx, yy, -1, -1 );
+ }
+ }
+
+ /* remove mask again if any */
+
if (useMask && mask)
{
gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
bool wxWindowDC::Blit( long xdest, long ydest, long width, long height,
wxDC *source, long xsrc, long 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, "invalid window dc" );
+ wxCHECK_MSG( source, FALSE, "invalid source dc" );
+
+ wxClientDC *srcDC = (wxClientDC*)source;
+ wxMemoryDC *memDC = (wxMemoryDC*)source;
+
+ bool use_bitmap_method = 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 and */
+ 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 copy
+ with different bit depths */
+ 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 );
- wxClientDC *csrc = (wxClientDC*)source;
-
- if (csrc->m_isMemDC)
+ if (use_bitmap_method)
{
- wxMemoryDC* srcDC = (wxMemoryDC*)source;
- GdkPixmap* pmap = srcDC->m_selected.GetPixmap();
- if (pmap)
+ /* scale/translate bitmap size */
+
+ long bm_width = memDC->m_selected.GetWidth();
+ long bm_height = memDC->m_selected.GetHeight();
+
+ long bm_ww = XLOG2DEVREL( bm_width );
+ long bm_hh = YLOG2DEVREL( bm_height );
+
+ /* scale bitmap if required */
+
+ wxBitmap use_bitmap;
+
+ if ((bm_width != bm_ww) || (bm_height != bm_hh))
{
- long xx = XLOG2DEV(xdest);
- long yy = YLOG2DEV(ydest);
+ printf( "scaling.\n" );
+
+ wxImage image( memDC->m_selected );
+ image = image.Scale( bm_ww, bm_hh );
+
+ use_bitmap = image.ConvertToBitmap();
+ }
+ else
+ {
+ use_bitmap = memDC->m_selected;
+ }
+
+ /* scale/translate size and position */
+
+ long xx = XLOG2DEV(xdest);
+ long yy = YLOG2DEV(ydest);
+
+ long ww = XLOG2DEVREL(width);
+ long hh = YLOG2DEVREL(height);
+
+ /* apply mask if any */
- GdkBitmap *mask = (GdkBitmap *) NULL;
- if (srcDC->m_selected.GetMask()) mask = srcDC->m_selected.GetMask()->GetBitmap();
+ GdkBitmap *mask = (GdkBitmap *) NULL;
+ if (use_bitmap.GetMask()) mask = use_bitmap.GetMask()->GetBitmap();
- if (useMask && mask)
- {
- gdk_gc_set_clip_mask( m_penGC, mask );
- gdk_gc_set_clip_origin( m_penGC, xx, yy );
- }
-
- gdk_draw_pixmap( m_window, m_penGC, pmap,
- source->DeviceToLogicalX(xsrc),
- source->DeviceToLogicalY(ysrc),
- xx,
- yy,
- source->DeviceToLogicalXRel(width),
- source->DeviceToLogicalYRel(height) );
-
- if (useMask && mask)
- {
- gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
- gdk_gc_set_clip_origin( m_penGC, 0, 0 );
- }
-
- SetLogicalFunction( old_logical_func );
- return TRUE;
+ if (useMask && mask)
+ {
+ gdk_gc_set_clip_mask( m_penGC, mask );
+ gdk_gc_set_clip_origin( m_penGC, xx, yy );
}
- GdkBitmap* bmap = srcDC->m_selected.GetBitmap();
- if (bmap)
+ /* draw XPixmap or XBitmap, depending on what the wxBitmap contains */
+
+ GdkPixmap *pm = use_bitmap.GetPixmap();
+ if (pm)
+ {
+ gdk_draw_pixmap( m_window, m_penGC, pm, xsrc, ysrc, xx, yy, ww, hh );
+ }
+ else
{
- long xx = XLOG2DEV(xdest);
- long yy = YLOG2DEV(ydest);
+ GdkBitmap *bm = use_bitmap.GetBitmap();
+ if (bm)
+ {
+ /* we use the textGC here because blitting a bitmap is done
+ using the current text colour */
+ gdk_draw_bitmap( m_window, m_textGC, bm, xsrc, ysrc, xx, yy, ww, hh );
+ }
+ }
- GdkBitmap *mask = (GdkBitmap *) NULL;
- if (srcDC->m_selected.GetMask()) mask = srcDC->m_selected.GetMask()->GetBitmap();
+ /* remove mask again if any */
- if (useMask && mask)
- {
- gdk_gc_set_clip_mask( m_penGC, mask );
- gdk_gc_set_clip_origin( m_penGC, xx, yy );
- }
-
- gdk_draw_bitmap( m_window, m_textGC, bmap,
- source->DeviceToLogicalX(xsrc),
- source->DeviceToLogicalY(ysrc),
- xx,
- yy,
- source->DeviceToLogicalXRel(width),
- source->DeviceToLogicalYRel(height) );
-
- if (useMask && mask)
- {
- gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
- gdk_gc_set_clip_origin( m_penGC, 0, 0 );
- }
-
- SetLogicalFunction( old_logical_func );
- return TRUE;
+ if (useMask && mask)
+ {
+ gdk_gc_set_clip_mask( m_penGC, (GdkBitmap *) NULL );
+ gdk_gc_set_clip_origin( m_penGC, 0, 0 );
}
}
-
- gdk_window_copy_area ( m_window, m_penGC,
- XLOG2DEV(xdest), YLOG2DEV(ydest),
- csrc->GetWindow(),
- source->DeviceToLogicalX(xsrc),
- source->DeviceToLogicalY(ysrc),
- source->DeviceToLogicalXRel(width),
- source->DeviceToLogicalYRel(height) );
+ else /* use_bitmap_method */
+ {
+ /* scale/translate size and position */
+
+ long xx = XLOG2DEV(xdest);
+ long yy = YLOG2DEV(ydest);
+
+ long ww = XLOG2DEVREL(width);
+ long 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;
x = XLOG2DEV(x);
y = YLOG2DEV(y);
- // CMB 21/5/98: draw text background if mode is wxSOLID
+ /* CMB 21/5/98: draw text background if mode is wxSOLID */
if (m_backgroundMode == wxSOLID)
{
long width = gdk_string_width( font, text );
}
gdk_draw_string( m_window, font, m_textGC, x, y + font->ascent, text );
- // CMB 17/7/98: simple underline: ignores scaling and underlying
- // X font's XA_UNDERLINE_POSITION and XA_UNDERLINE_THICKNESS
- // properties (see wxXt implementation)
+ /* 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())
{
long width = gdk_string_width( font, text );
{
wxCHECK_RET( Ok(), "invalid window dc" );
- if (!m_isMemDC)
+ /* - 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)
{
- gdk_window_clear( m_window );
+ int width,height;
+ m_owner->GetSize( &width, &height );
+ gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+ return;
}
- else
+
+ if (m_isMemDC)
{
int width,height;
GetSize( &width, &height );
gdk_draw_rectangle( m_window, m_bgGC, TRUE, 0, 0, width, height );
+ return;
}
}
gdk_gc_set_fill( m_brushGC, fillStyle );
- if (m_brush.GetStyle() == wxSTIPPLE)
+ if ((m_brush.GetStyle() == wxSTIPPLE) && (m_brush.GetStipple()->Ok()))
{
- gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
+ if (m_brush.GetStipple()->GetPixmap())
+ gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetPixmap() );
+ else
+ gdk_gc_set_stipple( m_brushGC, m_brush.GetStipple()->GetBitmap() );
}
if (IS_HATCH(m_brush.GetStyle()))
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
+ /* CMB 21/7/98: Added SetBackground. Sets background brush
+ * for Clear() and bg colour for shapes filled with cross-hatch brush */
wxCHECK_RET( Ok(), "invalid window dc" );
GdkFill fillStyle = GDK_SOLID;
switch (m_backgroundBrush.GetStyle())
{
- case wxSOLID:
- case wxTRANSPARENT:
- break;
- default:
- fillStyle = GDK_STIPPLED;
+ case wxSOLID:
+ case wxTRANSPARENT:
+ break;
+ default:
+ fillStyle = GDK_STIPPLED;
}
gdk_gc_set_fill( m_bgGC, fillStyle );
{
int num = m_backgroundBrush.GetStyle() - wxBDIAGONAL_HATCH;
gdk_gc_set_stipple( m_bgGC, hatches[num] );
- }
+ }
}
void wxWindowDC::SetLogicalFunction( int function )
wx_spline_draw_point_array( this );
}
+// Resolution in pixels per logical inch
+wxSize wxWindowDC::GetPPI(void) const
+{
+ return wxSize(100, 100);
+}
//-----------------------------------------------------------------------------
// wxPaintDC
projects / wxWidgets.git / blobdiff