Fix crash in wxDC::GetMultiLineTextExtent() after last commit.

[wxWidgets.git] / src / cocoa / dc.mm

diff --git a/src/cocoa/dc.mm b/src/cocoa/dc.mm
index b5270832974c7e93cc039eb9b8316e5f52803ece..0f24ba758f937511d08a42eab2c696363fdc50cd 100644 (file)
--- a/src/cocoa/dc.mm
+++ b/src/cocoa/dc.mm
@@ -6,11 +6,21 @@
 // Created:     2003/04/01
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott
 // Created:     2003/04/01
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 David Elliott

-// Licence:    wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#include "wx/dc.h"
-#include "wx/log.h"
+#include "wx/wxprec.h"
+
+#include "wx/cocoa/dc.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/log.h"
+    #include "wx/math.h" //math constants
+#endif //WX_PRECOMP
+
+#include "wx/cocoa/autorelease.h"
+#include "wx/cocoa/string.h"
+#include "wx/cocoa/ObjcRef.h"

 
 #import <AppKit/NSBezierPath.h>
 #import <AppKit/NSTextStorage.h>
 
 #import <AppKit/NSBezierPath.h>
 #import <AppKit/NSTextStorage.h>


@@ -19,21 +29,63 @@
 #import <AppKit/NSGraphicsContext.h>
 #import <AppKit/NSAffineTransform.h>
 #import <AppKit/NSColor.h>
 #import <AppKit/NSGraphicsContext.h>
 #import <AppKit/NSAffineTransform.h>
 #import <AppKit/NSColor.h>

-#import <AppKit/NSTypeSetter.h>
-
-IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
-wxDC *wxDC::sm_focusedDC = NULL;
-WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
-WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
-WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;
-
-void wxDC::CocoaInitializeTextSystem()
-{
-    wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized!  BAD PROGRAMMER!");
-
-    sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];
+#import <AppKit/NSTypesetter.h>
+#import <AppKit/NSImage.h>
+
+#include "wx/listimpl.cpp"
+WX_DEFINE_LIST(wxCocoaDCStack);
+
+IMPLEMENT_ABSTRACT_CLASS(wxCocoaDCImpl, wxDCImpl)
+
+WX_NSTextStorage wxCocoaDCImpl::sm_cocoaNSTextStorage = nil;
+WX_NSLayoutManager wxCocoaDCImpl::sm_cocoaNSLayoutManager = nil;
+WX_NSTextContainer wxCocoaDCImpl::sm_cocoaNSTextContainer = nil;
+wxCocoaDCStack wxCocoaDCImpl::sm_cocoaDCStack;
+
+inline void CocoaSetPenForNSBezierPath(wxPen &pen, NSBezierPath *bezpath)
+{
+    [pen.GetNSColor() set];
+    const CGFloat *pattern;
+    [bezpath setLineDash:pattern count:pen.GetCocoaLineDash(&pattern) phase:0.0];
+    [bezpath setLineWidth:pen.GetWidth()];
+    switch(pen.GetJoin())
+    {
+    case wxJOIN_BEVEL:
+        [bezpath setLineJoinStyle:NSBevelLineJoinStyle];
+        break;
+    case wxJOIN_ROUND:
+        [bezpath setLineJoinStyle:NSRoundLineJoinStyle];
+        break;
+    case wxJOIN_MITER:
+        [bezpath setLineJoinStyle:NSMiterLineJoinStyle];
+        break;
+    }
+    switch(pen.GetCap())
+    {
+    case wxCAP_ROUND:
+        [bezpath setLineCapStyle:NSRoundLineCapStyle];
+        break;
+    case wxCAP_PROJECTING:
+        [bezpath setLineCapStyle:NSSquareLineCapStyle];
+        break;
+    case wxCAP_BUTT:
+        [bezpath setLineCapStyle:NSButtLineCapStyle];
+        break;
+    }
+}
+
+void wxCocoaDCImpl::CocoaInitializeTextSystem()
+{
+    wxAutoNSAutoreleasePool pool;
+
+    wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,wxT("Text system already initalized!  BAD PROGRAMMER!"));
+
+    // FIXME: Never released
+    sm_cocoaNSTextStorage = wxGCSafeRetain([[[NSTextStorage alloc] init] autorelease]);
+
+    // FIXME: Never released
+    sm_cocoaNSLayoutManager = wxGCSafeRetain([[[NSLayoutManager alloc] init] autorelease]);

 
 

-    sm_cocoaNSLayoutManager = [[NSLayoutManager alloc] init];

     [sm_cocoaNSTextStorage addLayoutManager:sm_cocoaNSLayoutManager];
     // NSTextStorage retains NSLayoutManager, but so do we
     // [sm_cocoaNSLayoutManager release]; [sm_cocoaNSLayoutManager retain];
     [sm_cocoaNSTextStorage addLayoutManager:sm_cocoaNSLayoutManager];
     // NSTextStorage retains NSLayoutManager, but so do we
     // [sm_cocoaNSLayoutManager release]; [sm_cocoaNSLayoutManager retain];


@@ -41,52 +93,159 @@ void wxDC::CocoaInitializeTextSystem()
     // NOTE:  initWithContainerSize is the designated initializer, but the
     // Apple CircleView sample gets away with just calling init, which
     // is all we really need for our purposes.
     // NOTE:  initWithContainerSize is the designated initializer, but the
     // Apple CircleView sample gets away with just calling init, which
     // is all we really need for our purposes.

-    sm_cocoaNSTextContainer = [[NSTextContainer alloc] init];
+    // FIXME: Never released
+    sm_cocoaNSTextContainer = wxGCSafeRetain([[[NSTextContainer alloc] init] autorelease]);

     [sm_cocoaNSLayoutManager addTextContainer:sm_cocoaNSTextContainer];
     // NSLayoutManager retains NSTextContainer, but so do we
     // [sm_cocoaNSTextContainer release]; [sm_cocoaNSTextContainer retain];
 }
 
     [sm_cocoaNSLayoutManager addTextContainer:sm_cocoaNSTextContainer];
     // NSLayoutManager retains NSTextContainer, but so do we
     // [sm_cocoaNSTextContainer release]; [sm_cocoaNSTextContainer retain];
 }
 

-void wxDC::CocoaShutdownTextSystem()
+void wxCocoaDCImpl::CocoaShutdownTextSystem()

 {
     [sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
     [sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
     [sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
 }
 
 {
     [sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
     [sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
     [sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
 }
 

-wxDC::wxDC(void)
+void wxCocoaDCImpl::CocoaUnwindStackAndLoseFocus()
+{
+    wxCocoaDCStack::compatibility_iterator ourNode=sm_cocoaDCStack.Find(this);
+    if(ourNode)
+    {
+        wxCocoaDCStack::compatibility_iterator node=sm_cocoaDCStack.GetFirst();
+        for(;node!=ourNode; node=sm_cocoaDCStack.GetFirst())
+        {
+            wxCocoaDCImpl *dc = node->GetData();
+            wxASSERT(dc);
+            wxASSERT(dc!=this);
+            if(!dc->CocoaUnlockFocus())
+            {
+                wxFAIL_MSG(wxT("Unable to unlock focus on higher-level DC!"));
+            }
+            sm_cocoaDCStack.Erase(node);
+        }
+        wxASSERT(node==ourNode);
+        wxASSERT(ourNode->GetData() == this);
+        ourNode->GetData()->CocoaUnlockFocus();
+        sm_cocoaDCStack.Erase(ourNode);
+    }
+}
+
+bool wxCocoaDCImpl::CocoaUnwindStackAndTakeFocus()
+{
+    wxCocoaDCStack::compatibility_iterator node=sm_cocoaDCStack.GetFirst();
+    for(;node;node = sm_cocoaDCStack.GetFirst())
+    {
+        wxCocoaDCImpl *dc = node->GetData();
+        wxASSERT(dc);
+        // If we're on the stack, then it's unwound enough and we have focus
+        if(dc==this)
+            return true;
+        // If unable to unlockFocus (e.g. wxPaintDC) stop here
+        if(!dc->CocoaUnlockFocus())
+            break;
+        sm_cocoaDCStack.Erase(node);
+    }
+    return CocoaLockFocus();
+}
+
+wxCocoaDCImpl::wxCocoaDCImpl(wxDC *owner)
+:   wxDCImpl(owner)
+{
+    m_cocoaWxToBoundsTransform = nil;
+    m_pen = *wxBLACK_PEN;
+}
+
+wxCocoaDCImpl::~wxDC(void)
+{
+    [m_cocoaWxToBoundsTransform release];
+}
+
+bool wxCocoaDCImpl::CocoaLockFocus()
+{
+    return false;
+}
+
+bool wxCocoaDCImpl::CocoaUnlockFocus()
+{
+    return false;
+}
+
+/*static*/ WX_NSAffineTransform wxCocoaDCImpl::CocoaGetWxToBoundsTransform(bool isFlipped, float height)

 {
 {

+    NSAffineTransform *transform = nil;
+    // This transform flips the graphics since wxDC uses top-left origin
+    if(!isFlipped)
+    {
+        // The transform is auto released
+        transform = [NSAffineTransform transform];
+        /*  x' = 1x + 0y + 0
+            y' = 0x + -1y + window's height
+        */
+        NSAffineTransformStruct matrix = {
+            1,  0
+        ,   0, -1
+        ,   0, height
+        };
+        [transform setTransformStruct: matrix];
+    }
+    return transform;

 }
 
 }
 

-wxDC::~wxDC(void)
+void wxCocoaDCImpl::CocoaApplyTransformations()

 {
 {

+    [m_cocoaWxToBoundsTransform concat];
+    // TODO: Apply device/logical/user position/scaling transformations

 }
 
 }
 

-void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxCocoaDCImpl::CocoaUnapplyTransformations()

 {
 {

+    // NOTE: You *must* call this with focus held.
+    // Undo all transforms so we're back in true Cocoa coords with
+    // no scaling or flipping.
+    NSAffineTransform *invertTransform;
+    invertTransform = [m_cocoaWxToBoundsTransform copy];
+    [invertTransform invert];
+    [invertTransform concat];
+    [invertTransform release];
+}
+
+bool wxCocoaDCImpl::CocoaGetBounds(void *rectData)
+{
+    // We don't know what we are so we can't return anything.
+    return false;
+}
+
+void wxCocoaDCImpl::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+{
+    wxAutoNSAutoreleasePool pool;
+    if(!CocoaTakeFocus()) return;

     NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
     NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];

-    [m_textForegroundColour.GetNSColor() set];
+    CocoaSetPenForNSBezierPath(m_pen,bezpath);

     [bezpath stroke];
     [m_brush.GetNSColor() set];
     [bezpath fill];
 }
 
     [bezpath stroke];
     [m_brush.GetNSColor() set];
     [bezpath fill];
 }
 

-void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
+void wxCocoaDCImpl::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)

 {
 {

+    wxAutoNSAutoreleasePool pool;
+    if(!CocoaTakeFocus()) return;

     NSBezierPath *bezpath = [NSBezierPath bezierPath];
     [bezpath moveToPoint:NSMakePoint(x1,y1)];
     [bezpath lineToPoint:NSMakePoint(x2,y2)];
 
     NSBezierPath *bezpath = [NSBezierPath bezierPath];
     [bezpath moveToPoint:NSMakePoint(x1,y1)];
     [bezpath lineToPoint:NSMakePoint(x2,y2)];
 

-    [m_textForegroundColour.GetNSColor() set];
+    CocoaSetPenForNSBezierPath(m_pen,bezpath);

     [bezpath stroke];
 }
 
     [bezpath stroke];
 }
 

-void wxDC::DoGetTextExtent(const wxString& text, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, wxFont *theFont) const
+void wxCocoaDCImpl::DoGetTextExtent(const wxString& text, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, const wxFont *theFont) const

 {
 {

+    wxAutoNSAutoreleasePool pool;

 // FIXME: Cache this so it can be used for DoDrawText
 // FIXME: Cache this so it can be used for DoDrawText

-    wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized.  BAD PROGRAMMER!");
+    wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, wxT("Text system has not been initialized.  BAD PROGRAMMER!"));

     NSAttributedString *attributedString = [[NSAttributedString alloc]
     NSAttributedString *attributedString = [[NSAttributedString alloc]

-            initWithString:[NSString stringWithCString:text.c_str()]];
+            initWithString:wxNSStringWithWxString(text.c_str())];

     [sm_cocoaNSTextStorage setAttributedString:attributedString];
     [attributedString release];
 
     [sm_cocoaNSTextStorage setAttributedString:attributedString];
     [attributedString release];
 


@@ -102,21 +261,37 @@ void wxDC::DoGetTextExtent(const wxString& text, wxCoord *x, wxCoord *y, wxCoord
         *externalLeading=0;
 }
 
         *externalLeading=0;
 }
 

-void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
+void wxCocoaDCImpl::DoDrawText(const wxString& text, wxCoord x, wxCoord y)

 {
 {

-    wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized.  BAD PROGRAMMER!");
+    wxAutoNSAutoreleasePool pool;
+    if(!CocoaTakeFocus()) return;
+    wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, wxT("Text system has not been initialized.  BAD PROGRAMMER!"));

     NSAttributedString *attributedString = [[NSAttributedString alloc]
     NSAttributedString *attributedString = [[NSAttributedString alloc]

-            initWithString:[NSString stringWithCString:text.c_str()]];
+            initWithString:wxNSStringWithWxString(text.c_str())];

     [sm_cocoaNSTextStorage setAttributedString:attributedString];
     [attributedString release];
 
     [sm_cocoaNSTextStorage setAttributedString:attributedString];
     [attributedString release];
 

+    // Set the color (and later font) attributes
+    NSColor *fgColor = m_textForegroundColour.GetNSColor();
+    NSColor *bgColor = m_textBackgroundColour.GetNSColor();
+    if(!fgColor)
+        fgColor = [NSColor clearColor];
+    if(!bgColor)
+        bgColor = [NSColor clearColor];
+    NSDictionary *attrDict = [[NSDictionary alloc] initWithObjectsAndKeys:
+            fgColor, NSForegroundColorAttributeName,
+            bgColor, NSBackgroundColorAttributeName,
+            nil];
+    [sm_cocoaNSTextStorage addAttributes: attrDict range:NSMakeRange(0,[sm_cocoaNSTextStorage length])];
+    [attrDict release];
+

     NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
     NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
     // NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
     // there is no length or we don't start at zero
     if(!glyphRange.length)
         return;
     NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
     NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
     // NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
     // there is no length or we don't start at zero
     if(!glyphRange.length)
         return;

-    wxASSERT_MSG(glyphRange.location==0,"glyphRange must begin at zero");
+    wxASSERT_MSG(glyphRange.location==0,wxT("glyphRange must begin at zero"));

 
     NSAffineTransform *transform = [NSAffineTransform transform];
     [transform translateXBy:x yBy:y];
 
     NSAffineTransform *transform = [NSAffineTransform transform];
     [transform translateXBy:x yBy:y];


@@ -138,7 +313,7 @@ void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
     [flipTransform concat];
     #if 0
     // Draw+fill a rectangle so we can see where the shit is supposed to be.
     [flipTransform concat];
     #if 0
     // Draw+fill a rectangle so we can see where the shit is supposed to be.

-    wxLogDebug("(%f,%f) (%fx%f)",usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);
+    wxLogTrace(wxTRACE_COCOA,wxT("(%f,%f) (%fx%f)"),usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);

     NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
     [[NSColor blackColor] set];
     [bezpath stroke];
     NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
     [[NSColor blackColor] set];
     [bezpath stroke];


@@ -149,211 +324,269 @@ void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
     NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
     layoutLocation.x = 0.0;
     layoutLocation.y *= -1.0;
     NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
     layoutLocation.x = 0.0;
     layoutLocation.y *= -1.0;

-    layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
-    // NOTE: That's NSMakePoint, not NSMakePint (working on that though)
-    [m_textForegroundColour.GetNSColor() set];
-    [sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange  atPoint:layoutLocation];

 
 

-    [context restoreGraphicsState];
-}
+    // Save the location as is for underlining
+    NSPoint underlineLocation = layoutLocation;

 
 

-// wxDCBase functions
-int wxDCBase::DeviceToLogicalX(int x) const
-{
-    return x;
-}
+    // Offset the location by the baseline for drawing the glyphs.
+    layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];

 
 

-int wxDCBase::DeviceToLogicalY(int y) const
-{
-    return y;
-}
+    if(m_backgroundMode==wxSOLID)
+        [sm_cocoaNSLayoutManager drawBackgroundForGlyphRange:glyphRange  atPoint:NSZeroPoint];
+    [sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange  atPoint:layoutLocation];

 
 

-int wxDCBase::LogicalToDeviceX(int x) const
-{
-    return x;
-}
+    int underlineStyle = GetFont().GetUnderlined() ? NSUnderlineStyleSingle : NSUnderlineStyleNone;
+    NSRange lineGlyphRange;
+    NSRect lineRect = [sm_cocoaNSLayoutManager lineFragmentRectForGlyphAtIndex:0 effectiveRange:&lineGlyphRange];

 
 

-int wxDCBase::LogicalToDeviceY(int y) const
-{
-    return y;
+    [sm_cocoaNSLayoutManager underlineGlyphRange:glyphRange underlineType:underlineStyle
+        lineFragmentRect:lineRect lineFragmentGlyphRange:lineGlyphRange
+        containerOrigin:underlineLocation];
+
+    [context restoreGraphicsState];

 }
 
 ///////////////////////////////////////////////////////////////////////////
 // cut here, the rest is stubs
 ///////////////////////////////////////////////////////////////////////////
 
 }
 
 ///////////////////////////////////////////////////////////////////////////
 // cut here, the rest is stubs
 ///////////////////////////////////////////////////////////////////////////
 

-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-#define mm2inches              0.0393700787402
-#define inches2mm              25.4
-#define mm2twips               56.6929133859
-#define twips2mm               0.0176388888889
-#define mm2pt                  2.83464566929
-#define pt2mm                  0.352777777778
-

 //-----------------------------------------------------------------------------
 // wxDC
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 // wxDC
 //-----------------------------------------------------------------------------
 

-void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
+void wxCocoaDCImpl::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )

 {
 };
 
 {
 };
 

-void wxDC::DoDrawPoint( int x, int y ) 
-{ 
+void wxCocoaDCImpl::DoDrawPoint( int x, int y )
+{

 };
 
 };
 

-void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
+void wxCocoaDCImpl::DoDrawPolygon( int, wxPoint *, int, int, wxPolygonFillMode)

 {
 };
 
 {
 };
 

-void wxDC::DoDrawLines( int, wxPoint *, int, int )
+void wxCocoaDCImpl::DoDrawLines( int, wxPoint *, int, int )

 {
 }
 
 {
 }
 

-int wxDC::GetDepth() const
+int wxCocoaDCImpl::GetDepth() const

 {
     return 0;
 }
 
 {
     return 0;
 }
 

-wxSize wxDC::GetPPI() const
+wxSize wxCocoaDCImpl::GetPPI() const

 {
     return wxSize(0,0);
 }
 
 {
     return wxSize(0,0);
 }
 

-bool wxDC::CanGetTextExtent() const
+bool wxCocoaDCImpl::CanGetTextExtent() const

 {
     return false;
 }
 
 {
     return false;
 }
 

-wxCoord wxDC::GetCharHeight() const
+wxCoord wxCocoaDCImpl::GetCharHeight() const

 {
     return 0;
 }
 
 {
     return 0;
 }
 

-wxCoord wxDC::GetCharWidth() const
+wxCoord wxCocoaDCImpl::GetCharWidth() const

 {
     return 0;
 }
 
 {
     return 0;
 }
 

-bool wxDC::CanDrawBitmap() const
+bool wxCocoaDCImpl::CanDrawBitmap() const

 {
 {

-    return false;
+    return true;

 }
 
 }
 

-bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
+bool wxCocoaDCImpl::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const

 {
     return false;
 }
 
 {
     return false;
 }
 

-void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
+void wxCocoaDCImpl::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)

 {
 }
 {
 }

-    
-void wxDC::SetPen(const wxPen& pen)
+
+void wxCocoaDCImpl::SetFont(const wxFont& font)

 {
 {

+    m_font = font;

 }
 
 }
 

-void wxDC::SetBrush(const wxBrush& brush)
+void wxCocoaDCImpl::SetPen(const wxPen& pen)
+{
+    m_pen = pen;
+}
+
+void wxCocoaDCImpl::SetBrush(const wxBrush& brush)

 {
     m_brush = brush;
 }
 
 {
     m_brush = brush;
 }
 

-void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
+void wxCocoaDCImpl::DoSetClippingRegionAsRegion(const wxRegion& region)

 {
 }
 
 {
 }
 

-void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxCocoaDCImpl::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)

 {
 }
 
 {
 }
 

-void wxDC::DestroyClippingRegion()
+void wxCocoaDCImpl::DestroyClippingRegion()

 {
 }
 
 {
 }
 

-void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
+void wxCocoaDCImpl::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)

 {
 }
 
 {
 }
 

-void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
+void wxCocoaDCImpl::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)

 {
 }
 
 {
 }
 

-void wxDC::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)
+void wxCocoaDCImpl::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)

 {
 }
 
 {
 }
 

-void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
+void wxCocoaDCImpl::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)

 {
 }
 
 {
 }
 

-void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
+void wxCocoaDCImpl::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)

 {
 {

+    wxAutoNSAutoreleasePool pool;
+    if(!CocoaTakeFocus()) return;
+    if(!bmp.IsOk())
+        return;
+
+#if 0
+    // Draw a rect so we can see where it's supposed to be
+    wxLogTrace(wxTRACE_COCOA,wxT("image at (%d,%d) size %dx%d"),x,y,bmp.GetWidth(),bmp.GetHeight());
+    NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,bmp.GetWidth(),bmp.GetHeight())];
+    [[NSColor blackColor] set];
+    [bezpath stroke];
+    [[NSColor blueColor] set];
+    [bezpath fill];
+#endif // 0
+
+    NSAffineTransform *transform = [NSAffineTransform transform];
+    [transform translateXBy:x yBy:y];
+
+    NSAffineTransform *flipTransform = [NSAffineTransform transform];
+    /*  x' = 1x + 0y + 0
+        y' = 0x + -1y + window's height
+    */
+    NSAffineTransformStruct matrix = {
+        1,  0
+    ,   0, -1
+    ,   0, bmp.GetHeight()
+    };
+    [flipTransform setTransformStruct: matrix];
+
+    NSGraphicsContext *context = [NSGraphicsContext currentContext];
+    [context saveGraphicsState];
+    [transform concat];
+    [flipTransform concat];
+
+    NSImage *nsimage = [bmp.GetNSImage(useMask) retain];
+
+    [nsimage drawAtPoint: NSMakePoint(0,0)
+        fromRect: NSMakeRect(0.0,0.0,bmp.GetWidth(),bmp.GetHeight())
+        operation: NSCompositeSourceOver
+        fraction: 1.0];
+
+    [nsimage release];
+    [context restoreGraphicsState];

 }
 
 }
 

-bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
+bool wxCocoaDCImpl::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, wxFloodFillStyle style)

 {
     return false;
 }
 
 {
     return false;
 }
 

-void wxDC::DoCrossHair(wxCoord x, wxCoord y)
+void wxCocoaDCImpl::DoCrossHair(wxCoord x, wxCoord y)

 {
 }
 
 
 {
 }
 
 

-bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, int rop, bool useMask , wxCoord xsrcMask, wxCoord ysrcMask)
+bool wxCocoaDCImpl::DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC *source, wxCoord xsrc, wxCoord ysrc, wxRasterOperationMode rop, bool useMask , wxCoord xsrcMask, wxCoord ysrcMask)
+{
+    if(!CocoaTakeFocus()) return false;
+    if(!source) return false;
+    wxCocoaDCImpl *sourceImpl = static_cast<wxCocoaDCImpl*>(source->GetImpl());
+    return sourceImpl->CocoaDoBlitOnFocusedDC(xdest,ydest,width,height,
+        xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
+}
+
+bool wxCocoaDCImpl::CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
+    wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
+    int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask)

 {
     return false;
 }
 
 {
     return false;
 }
 

-void wxDC::DoGetSize( int* width, int* height ) const
+void wxCocoaDCImpl::DoGetSize( int* width, int* height ) const

 {
   *width = m_maxX-m_minX;
   *height = m_maxY-m_minY;
 };
 
 {
   *width = m_maxX-m_minX;
   *height = m_maxY-m_minY;
 };
 

-void wxDC::DoGetSizeMM( int* width, int* height ) const
+void wxCocoaDCImpl::DoGetSizeMM( int* width, int* height ) const

 {
   int w = 0;
   int h = 0;
 {
   int w = 0;
   int h = 0;

-  GetSize( &w, &h );
+  DoGetSize( &w, &h );

 };
 
 };
 

-void wxDC::SetTextForeground( const wxColour &col )
+void wxCocoaDCImpl::SetTextForeground( const wxColour &col )

 {
 {

-  if (!Ok()) return;
+//  if (!IsOk()) return;

   m_textForegroundColour = col;
 };
 
   m_textForegroundColour = col;
 };
 

-void wxDC::SetTextBackground( const wxColour &col )
+void wxCocoaDCImpl::SetTextBackground( const wxColour &col )

 {
 {

-  if (!Ok()) return;
+//  if (!IsOk()) return;

   m_textBackgroundColour = col;
 };
 
   m_textBackgroundColour = col;
 };
 

-void wxDC::Clear()
+void wxCocoaDCImpl::Clear()

 {
 {

+    if(!CocoaTakeFocus()) return;
+
+    NSRect boundsRect;
+    if(!CocoaGetBounds(&boundsRect)) return;
+
+    NSGraphicsContext *context = [NSGraphicsContext currentContext];
+    [context saveGraphicsState];
+
+    // Undo all transforms so when we draw our bounds rect we
+    // really overwrite our bounds rect.
+    CocoaUnapplyTransformations();
+
+    [m_backgroundBrush.GetNSColor() set];
+    [NSBezierPath fillRect:boundsRect];
+
+    [context restoreGraphicsState];

 }
 
 }
 

-void wxDC::SetBackground(const wxBrush& brush)
+void wxCocoaDCImpl::SetBackground(const wxBrush& brush)

 {
     m_backgroundBrush = brush;
 }
 
 {
     m_backgroundBrush = brush;
 }
 

-void wxDC::SetPalette(const wxPalette&)
+void wxCocoaDCImpl::SetPalette(const wxPalette&)

 {
 }
 
 {
 }
 

-void wxDC::SetLogicalFunction(int)
+void wxCocoaDCImpl::SetLogicalFunction(wxRasterOperationMode)

 {
 }
 
 
 {
 }
 
 

-void wxDC::SetMapMode( int mode )
+void wxCocoaDCImpl::SetMapMode( wxMappingMode mode )

 {
 {

-  switch (mode) 
+  switch (mode)

   {
     case wxMM_TWIPS:
       break;
   {
     case wxMM_TWIPS:
       break;


@@ -373,7 +606,7 @@ void wxDC::SetMapMode( int mode )
   };
 };
 
   };
 };
 

-void wxDC::SetUserScale( double x, double y )
+void wxCocoaDCImpl::SetUserScale( double x, double y )

 {
   // allow negative ? -> no
   m_userScaleX = x;
 {
   // allow negative ? -> no
   m_userScaleX = x;


@@ -381,7 +614,7 @@ void wxDC::SetUserScale( double x, double y )
   ComputeScaleAndOrigin();
 };
 
   ComputeScaleAndOrigin();
 };
 

-void wxDC::SetLogicalScale( double x, double y )
+void wxCocoaDCImpl::SetLogicalScale( double x, double y )

 {
   // allow negative ?
   m_logicalScaleX = x;
 {
   // allow negative ?
   m_logicalScaleX = x;


@@ -389,26 +622,26 @@ void wxDC::SetLogicalScale( double x, double y )
   ComputeScaleAndOrigin();
 };
 
   ComputeScaleAndOrigin();
 };
 

-void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
+void wxCocoaDCImpl::SetLogicalOrigin( wxCoord x, wxCoord y )

 {
   m_logicalOriginX = x * m_signX;   // is this still correct ?
   m_logicalOriginY = y * m_signY;
   ComputeScaleAndOrigin();
 };
 
 {
   m_logicalOriginX = x * m_signX;   // is this still correct ?
   m_logicalOriginY = y * m_signY;
   ComputeScaleAndOrigin();
 };
 

-void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
+void wxCocoaDCImpl::SetDeviceOrigin( wxCoord x, wxCoord y )

 {
   ComputeScaleAndOrigin();
 };
 
 {
   ComputeScaleAndOrigin();
 };
 

-void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
+void wxCocoaDCImpl::SetAxisOrientation( bool xLeftRight, bool yBottomUp )

 {
   m_signX = (xLeftRight ?  1 : -1);
   m_signY = (yBottomUp  ? -1 :  1);
   ComputeScaleAndOrigin();
 };
 
 {
   m_signX = (xLeftRight ?  1 : -1);
   m_signY = (yBottomUp  ? -1 :  1);
   ComputeScaleAndOrigin();
 };
 

-void wxDC::ComputeScaleAndOrigin(void)
+void wxCocoaDCImpl::ComputeScaleAndOrigin(void)

 {
   // CMB: copy scale to see if it changes
   double origScaleX = m_scaleX;
 {
   // CMB: copy scale to see if it changes
   double origScaleX = m_scaleX;


@@ -417,15 +650,16 @@ void wxDC::ComputeScaleAndOrigin(void)
   m_scaleX = m_logicalScaleX * m_userScaleX;
   m_scaleY = m_logicalScaleY * m_userScaleY;
 
   m_scaleX = m_logicalScaleX * m_userScaleX;
   m_scaleY = m_logicalScaleY * m_userScaleY;
 

-  // CMB: if scale has changed call SetPen to recalulate the line width 
+  // CMB: if scale has changed call SetPen to recalulate the line width

   if (m_scaleX != origScaleX || m_scaleY != origScaleY)
   {
   if (m_scaleX != origScaleX || m_scaleY != origScaleY)
   {

+#if 0

     // this is a bit artificial, but we need to force wxDC to think
     // the pen has changed
     // this is a bit artificial, but we need to force wxDC to think
     // the pen has changed

-    wxPen* pen = & GetPen();
+    const wxPen* pen = & GetPen();

     wxPen tempPen;
     m_pen = tempPen;
     SetPen(* pen);
     wxPen tempPen;
     m_pen = tempPen;
     SetPen(* pen);

+#endif

   }
 };
   }
 };

-