// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "dcclient.h"
#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
#include "wx/dcclient.h"
#include "wx/dcmemory.h"
#include "wx/window.h"
m_currentFill = -1;
m_colour = wxColourDisplay();
m_display = (WXDisplay*) NULL;
- m_currentRegion = (WXRegion) 0;
- m_userRegion = (WXRegion) 0;
m_pixmap = (WXPixmap) 0;
m_autoSetting = 0;
m_oldFont = (WXFont) 0;
m_ok = false;
+ m_clipRegion = (WXRegion) 0;
}
wxWindowDC::wxWindowDC()
XFreeGC ((Display*) m_display, (GC) m_gcBacking);
m_gcBacking = (WXGC) 0;
- if (m_currentRegion)
- XDestroyRegion ((Region) m_currentRegion);
- m_currentRegion = (WXRegion) 0;
-
- if (m_userRegion)
- XDestroyRegion ((Region) m_userRegion);
- m_userRegion = (WXRegion) 0;
+ if (m_clipRegion)
+ XDestroyRegion ((Region) m_clipRegion);
+ m_clipRegion = (WXRegion) 0;
}
extern bool wxDoFloodFill(wxDC *dc, wxCoord x, wxCoord y,
return TRUE;
}
-// TODO: use scaled Blit e.g. as per John Price's implementation in Contrib/Utilities
-bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
- wxDC *source, wxCoord xsrc, wxCoord ysrc, int rop, bool useMask,
+// TODO: use scaled Blit e.g. as per John Price's implementation
+// in Contrib/Utilities
+bool wxWindowDC::DoBlit( wxCoord xdest, wxCoord ydest,
+ wxCoord width, wxCoord height,
+ wxDC *source, wxCoord xsrc, wxCoord ysrc,
+ int rop, bool useMask,
wxCoord xsrcMask, wxCoord ysrcMask )
{
wxCHECK_MSG( Ok(), FALSE, "invalid dc" );
if ( useMask )
{
- XSetClipMask ((Display*) m_display, (GC) m_gc, None);
+ if ( m_clipRegion )
+ XSetRegion ((Display*) m_display, (GC) m_gc,
+ (Region) m_clipRegion);
+ else
+ XSetClipMask ((Display*) m_display, (GC) m_gc, None);
+
XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
}
}
if ( useMask )
{
- XSetClipMask ((Display*) m_display, (GC) m_gc, None);
+ if ( m_clipRegion )
+ XSetRegion ((Display*) m_display, (GC) m_gc,
+ (Region) m_clipRegion);
+ else
+ XSetClipMask ((Display*) m_display, (GC) m_gc, None);
+
XSetClipOrigin ((Display*) m_display, (GC) m_gc, 0, 0);
}
}
}
-// Helper function
-void wxWindowDC::SetDCClipping()
+static void wxCopyRegion( WXRegion src, WXRegion& dst )
{
- // m_userRegion is the region set by calling SetClippingRegion
-
- if (m_currentRegion)
- XDestroyRegion ((Region) m_currentRegion);
-
- // We need to take into account
- // clipping imposed on a window by a repaint.
- // We'll combine it with the user region. But for now,
- // just use the currently-defined user clipping region.
- if (m_userRegion || (m_window && m_window->GetUpdateRegion().Ok()) )
- m_currentRegion = (WXRegion) XCreateRegion ();
- else
- m_currentRegion = (WXRegion) NULL;
-
- if ((m_window && m_window->GetUpdateRegion().Ok()) && m_userRegion)
- XIntersectRegion ((Region) m_window->GetUpdateRegion().GetXRegion(), (Region) m_userRegion, (Region) m_currentRegion);
- else if (m_userRegion)
- XIntersectRegion ((Region) m_userRegion, (Region) m_userRegion, (Region) m_currentRegion);
- else if (m_window && m_window->GetUpdateRegion().Ok())
- XIntersectRegion ((Region) m_window->GetUpdateRegion().GetXRegion(), (Region) m_window->GetUpdateRegion().GetXRegion(),
- (Region) m_currentRegion);
+ if( !dst )
+ dst = XCreateRegion();
+ XUnionRegion( (Region)src, (Region)src, (Region)dst );
+}
- if (m_currentRegion)
+// Helper function; userRegion is the region set by calling SetClippingRegion
+void wxWindowDC::SetDCClipping( WXRegion userRegion )
+{
+ bool hasUpdateRegion = m_window && m_window->GetUpdateRegion().Ok();
+ // this means that we should start the clip region from scratch,
+ // or from the update region, if any
+ if( !userRegion )
{
- XSetRegion ((Display*) m_display, (GC) m_gc, (Region) m_currentRegion);
+ if( m_clipRegion )
+ XDestroyRegion( (Region)m_clipRegion );
+ m_clipRegion = (WXRegion)NULL;
+
+ if( hasUpdateRegion )
+ wxCopyRegion( m_window->GetUpdateRegion().GetX11Region(),
+ m_clipRegion );
}
- else
+ // intersect the user region, if any, with the
+ // exisiting clip region
+ else // if( userRegion )
{
- XSetClipMask ((Display*) m_display, (GC) m_gc, None);
+ if( !m_clipRegion )
+ wxCopyRegion( userRegion, m_clipRegion );
+ else
+ XIntersectRegion( (Region)m_clipRegion,
+ (Region)userRegion, (Region)m_clipRegion );
}
+ if( m_clipRegion )
+ XSetRegion( (Display*)m_display, (GC)m_gc, (Region)m_clipRegion );
+ else
+ XSetClipMask( (Display*)m_display, (GC)m_gc, None );
}
-void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y, wxCoord width, wxCoord height )
+void wxWindowDC::DoSetClippingRegion( wxCoord x, wxCoord y,
+ wxCoord width, wxCoord height )
{
wxDC::DoSetClippingRegion( x, y, width, height );
- if (m_userRegion)
- XDestroyRegion ((Region) m_userRegion);
- m_userRegion = (WXRegion) XCreateRegion ();
- XRectangle r;
- r.x = XLOG2DEV (x);
- r.y = YLOG2DEV (y);
- r.width = XLOG2DEVREL(width);
- r.height = YLOG2DEVREL(height);
- XUnionRectWithRegion (&r, (Region) m_userRegion, (Region) m_userRegion);
+ wxRegion temp(x, y, width, height);
- SetDCClipping ();
+ SetDCClipping(temp.GetX11Region());
// Needs to work differently for Pixmap: without this,
// there's a nasty (Display*) m_display bug. 8/12/94
rects[0].y = YLOG2DEV_2(y);
rects[0].width = XLOG2DEVREL(width);
rects[0].height = YLOG2DEVREL(height);
- XSetClipRectangles((Display*) m_display, (GC) m_gcBacking, 0, 0, rects, 1, Unsorted);
+ XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
+ 0, 0, rects, 1, Unsorted);
}
}
wxDC::DoSetClippingRegion( box.x, box.y, box.width, box.height );
- if (m_userRegion)
- XDestroyRegion ((Region) m_userRegion);
- m_userRegion = (WXRegion) XCreateRegion ();
-
- XUnionRegion((Region) m_userRegion, (Region) region.GetXRegion(), (Region) m_userRegion);
-
- SetDCClipping ();
+ SetDCClipping(region.GetX11Region());
// Needs to work differently for Pixmap: without this,
// there's a nasty (Display*) m_display bug. 8/12/94
rects[0].y = YLOG2DEV_2(box.y);
rects[0].width = XLOG2DEVREL(box.width);
rects[0].height = YLOG2DEVREL(box.height);
- XSetClipRectangles((Display*) m_display, (GC) m_gcBacking, 0, 0, rects, 1, Unsorted);
+ XSetClipRectangles((Display*) m_display, (GC) m_gcBacking,
+ 0, 0, rects, 1, Unsorted);
}
}
{
wxDC::DestroyClippingRegion();
- if (m_userRegion)
- XDestroyRegion ((Region) m_userRegion);
- m_userRegion = NULL;
-
- SetDCClipping ();
+ SetDCClipping(NULL);
- XGCValues gc_val;
- gc_val.clip_mask = None;
if (m_window && m_window->GetBackingPixmap())
- XChangeGC((Display*) m_display, (GC) m_gcBacking, GCClipMask, &gc_val);
+ XSetClipMask ((Display*) m_display, (GC) m_gcBacking, None);
}
// Resolution in pixels per logical inch
wxSize wxWindowDC::GetPPI() const
{
+ // TODO
return wxSize(100, 100);
}
wxPaintDC::wxPaintDC(wxWindow* win) : wxWindowDC(win)
{
- wxRegion* region = NULL;
-
- // Combine all the update rects into a region
- const wxRectList& updateRects(win->GetUpdateRects());
- if ( updateRects.GetCount() != 0 )
- {
- for ( wxRectList::Node *node = updateRects.GetFirst();
- node;
- node = node->GetNext() )
- {
- wxRect* rect = node->GetData();
-
- if (!region)
- region = new wxRegion(*rect);
- else
- // TODO: is this correct? In SetDCClipping above,
- // XIntersectRegion is used to combine paint and user
- // regions. XIntersectRegion appears to work in that case...
- region->Union(*rect);
- }
- }
- else
- {
- int cw, ch;
- win->GetClientSize(&cw, &ch);
- region = new wxRegion(wxRect(0, 0, cw, ch));
- }
-
- win->SetUpdateRegion(*region);
-
- wxRegion& theRegion(win->GetUpdateRegion());
- theRegion.SetRects(updateRects); // We also store in terms of rects, for iteration to work.
-
- // Set the clipping region. Any user-defined region will be combined with this
- // one in SetDCClipping.
- XSetRegion ((Display*) m_display, (GC) m_gc, (Region) region->GetXRegion());
-
- delete region;
+ // Set the clipping region.to the update region
+ SetDCClipping((WXRegion)NULL);
}
wxPaintDC::~wxPaintDC()
{
- XSetClipMask ((Display*) m_display, (GC) m_gc, None);
if (m_window)
m_window->ClearUpdateRegion();
+ SetDCClipping((WXRegion)NULL);
}
// ----------------------------------------------------------------------------
projects / wxWidgets.git / blobdiff