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

/////////////////////////////////////////////////////////////////////////////
// Name:        src/cocoa/dc.mm
// Purpose:     wxDC
// Author:      David Elliott
// Modified by:
// Created:     2003/04/01
// RCS-ID:      $Id$
// Copyright:   (c) 2003 David Elliott
// Licence:   	wxWindows license
/////////////////////////////////////////////////////////////////////////////

#include "wx/dc.h"
#include "wx/log.h"

#include "wx/cocoa/autorelease.h"

#import <AppKit/NSBezierPath.h>
#import <AppKit/NSTextStorage.h>
#import <AppKit/NSLayoutManager.h>
#import <AppKit/NSTextContainer.h>
#import <AppKit/NSGraphicsContext.h>
#import <AppKit/NSAffineTransform.h>
#import <AppKit/NSColor.h>
#import <AppKit/NSTypeSetter.h>
#import <AppKit/NSImage.h>

#include <wx/listimpl.cpp>
WX_DEFINE_LIST(wxCocoaDCStack);

IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;
wxCocoaDCStack wxDC::sm_cocoaDCStack;

inline void CocoaSetPenForNSBezierPath(wxPen &pen, NSBezierPath *bezpath)
{
    [pen.GetNSColor() set];
    const float *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 wxDC::CocoaInitializeTextSystem()
{
    wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized!  BAD PROGRAMMER!");

    sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];

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

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

void wxDC::CocoaShutdownTextSystem()
{
    [sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
    [sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
    [sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
}

void wxDC::CocoaUnwindStackAndLoseFocus()
{
    wxCocoaDCStack::Node *ourNode=sm_cocoaDCStack.Find(this);
    if(ourNode)
    {
        wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
        for(;node!=ourNode; node=sm_cocoaDCStack.GetFirst())
        {
            wxDC *dc = node->GetData();
            wxASSERT(dc);
            wxASSERT(dc!=this);
            if(!dc->CocoaUnlockFocus())
            {
                wxFAIL_MSG("Unable to unlock focus on higher-level DC!");
            }
            sm_cocoaDCStack.DeleteNode(node);
        }
        wxASSERT(node==ourNode);
        wxASSERT(ourNode->GetData() == this);
        ourNode->GetData()->CocoaUnlockFocus();
        sm_cocoaDCStack.DeleteNode(ourNode);
    }
}

bool wxDC::CocoaUnwindStackAndTakeFocus()
{
    wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
    for(;node;node = sm_cocoaDCStack.GetFirst())
    {
        wxDC *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.DeleteNode(node);
    }
    return CocoaLockFocus();
}

wxDC::wxDC(void)
{
    m_cocoaFlipped = false;
    m_cocoaHeight = 0.0;
    m_pen = *wxBLACK_PEN;
}

wxDC::~wxDC(void)
{
}

bool wxDC::CocoaLockFocus()
{
    return false;
}

bool wxDC::CocoaUnlockFocus()
{
    return false;
}

void wxDC::CocoaApplyTransformations()
{
    // This transform flips the graphics since wxDC uses top-left origin
    if(!m_cocoaFlipped)
    {
        // The transform is auto released
        NSAffineTransform *transform = [NSAffineTransform transform];
        /*  x' = 1x + 0y + 0
            y' = 0x + -1y + window's height
        */
        NSAffineTransformStruct matrix = {
            1,  0
        ,   0, -1
        ,   0, m_cocoaHeight
        };
        [transform setTransformStruct: matrix];
        // Apply the transform 
        [transform concat];
    }
    // TODO: Apply scaling transformation
}

void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
    if(!CocoaTakeFocus()) return;
    NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
    CocoaSetPenForNSBezierPath(m_pen,bezpath);
    [bezpath stroke];
    [m_brush.GetNSColor() set];
    [bezpath fill];
}

void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
{
    if(!CocoaTakeFocus()) return;
    NSBezierPath *bezpath = [NSBezierPath bezierPath];
    [bezpath moveToPoint:NSMakePoint(x1,y1)];
    [bezpath lineToPoint:NSMakePoint(x2,y2)];

    CocoaSetPenForNSBezierPath(m_pen,bezpath);
    [bezpath stroke];
}

void wxDC::DoGetTextExtent(const wxString& text, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, wxFont *theFont) const
{
    wxAutoNSAutoreleasePool pool;
// 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!");
    NSAttributedString *attributedString = [[NSAttributedString alloc]
            initWithString:[NSString stringWithCString:text.c_str()]];
    [sm_cocoaNSTextStorage setAttributedString:attributedString];
    [attributedString release];

    NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
    NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
    if(x)
        *x=(int)usedRect.size.width;
    if(y)
        *y=(int)usedRect.size.height;
    if(descent)
        *descent=0;
    if(externalLeading)
        *externalLeading=0;
}

void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
{
    if(!CocoaTakeFocus()) return;
    wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized.  BAD PROGRAMMER!");
    NSAttributedString *attributedString = [[NSAttributedString alloc]
            initWithString:[NSString stringWithCString:text.c_str()]];
    [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;
    wxASSERT_MSG(glyphRange.location==0,"glyphRange must begin at zero");

    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, usedRect.size.height
    };
    [flipTransform setTransformStruct: matrix];

    NSGraphicsContext *context = [NSGraphicsContext currentContext];
    [context saveGraphicsState];
    [transform concat];
    [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);
    NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
    [[NSColor blackColor] set];
    [bezpath stroke];
    [[NSColor blueColor] set];
    [bezpath fill];
    #endif

    NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
    layoutLocation.x = 0.0;
    layoutLocation.y *= -1.0;
    layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
    if(m_backgroundMode==wxSOLID)
        [sm_cocoaNSLayoutManager drawBackgroundForGlyphRange:glyphRange  atPoint:NSZeroPoint];
    [sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange  atPoint:layoutLocation];

    [context restoreGraphicsState];
}

// wxDCBase functions
int wxDCBase::DeviceToLogicalX(int x) const
{
    return x;
}

int wxDCBase::DeviceToLogicalY(int y) const
{
    return y;
}

int wxDCBase::DeviceToLogicalXRel(int x) const
{
    return x;
}

int wxDCBase::DeviceToLogicalYRel(int y) const
{
    return y;
}

int wxDCBase::LogicalToDeviceX(int x) const
{
    return x;
}

int wxDCBase::LogicalToDeviceY(int y) const
{
    return y;
}

int wxDCBase::LogicalToDeviceXRel(int x) const
{
    return x;
}

int wxDCBase::LogicalToDeviceYRel(int y) const
{
    return y;
}

///////////////////////////////////////////////////////////////////////////
// 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
//-----------------------------------------------------------------------------

void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
{
};

void wxDC::DoDrawPoint( int x, int y ) 
{ 
};

void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
{
};

void wxDC::DoDrawLines( int, wxPoint *, int, int )
{
}

int wxDC::GetDepth() const
{
    return 0;
}

wxSize wxDC::GetPPI() const
{
    return wxSize(0,0);
}

bool wxDC::CanGetTextExtent() const
{
    return false;
}

wxCoord wxDC::GetCharHeight() const
{
    return 0;
}

wxCoord wxDC::GetCharWidth() const
{
    return 0;
}

bool wxDC::CanDrawBitmap() const
{
    return true;
}

bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
{
    return false;
}

void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
{
}
    
void wxDC::SetPen(const wxPen& pen)
{
    m_pen = pen;
}

void wxDC::SetBrush(const wxBrush& brush)
{
    m_brush = brush;
}

void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
{
}

void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
}

void wxDC::DestroyClippingRegion()
{
}

void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
{
}

void wxDC::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 wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
}

void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
{
    if(!CocoaTakeFocus()) return;
    if(!bmp.Ok())
        return;

#if 0
    // Draw a rect so we can see where it's supposed to be
    wxLogDebug("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 = [[NSImage alloc]
            initWithSize:NSMakeSize(bmp.GetWidth(), bmp.GetHeight())];
    [nsimage addRepresentation: const_cast<wxBitmap&>(bmp).GetNSBitmapImageRep()];
    [nsimage drawAtPoint: NSMakePoint(0,0)
        fromRect: NSMakeRect(0.0,0.0,bmp.GetWidth(),bmp.GetHeight())
        operation: NSCompositeCopy
        fraction: 1.0];
        
    [nsimage release];
    [context restoreGraphicsState];
}

bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
{
    return false;
}

void wxDC::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)
{
    if(!CocoaTakeFocus()) return false;
    if(!source) return false;
    return source->CocoaDoBlitOnFocusedDC(xdest,ydest,width,height,
        xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
}

bool wxDC::CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
    wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
    int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask)
{
    return false;
}

void wxDC::DoGetSize( int* width, int* height ) const
{
  *width = m_maxX-m_minX;
  *height = m_maxY-m_minY;
};

void wxDC::DoGetSizeMM( int* width, int* height ) const
{
  int w = 0;
  int h = 0;
  GetSize( &w, &h );
};

void wxDC::SetTextForeground( const wxColour &col )
{
  if (!Ok()) return;
  m_textForegroundColour = col;
};

void wxDC::SetTextBackground( const wxColour &col )
{
  if (!Ok()) return;
  m_textBackgroundColour = col;
};

void wxDC::Clear()
{
}

void wxDC::SetBackground(const wxBrush& brush)
{
    m_backgroundBrush = brush;
}

void wxDC::SetPalette(const wxPalette&)
{
}

void wxDC::SetLogicalFunction(int)
{
}


void wxDC::SetMapMode( int mode )
{
  switch (mode) 
  {
    case wxMM_TWIPS:
      break;
    case wxMM_POINTS:
      break;
    case wxMM_METRIC:
      break;
    case wxMM_LOMETRIC:
      break;
    default:
    case wxMM_TEXT:
      SetLogicalScale( 1.0, 1.0 );
      break;
  };
  if (mode != wxMM_TEXT)
  {
  };
};

void wxDC::SetUserScale( double x, double y )
{
  // allow negative ? -> no
  m_userScaleX = x;
  m_userScaleY = y;
  ComputeScaleAndOrigin();
};

void wxDC::SetLogicalScale( double x, double y )
{
  // allow negative ?
  m_logicalScaleX = x;
  m_logicalScaleY = y;
  ComputeScaleAndOrigin();
};

void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
{
  m_logicalOriginX = x * m_signX;   // is this still correct ?
  m_logicalOriginY = y * m_signY;
  ComputeScaleAndOrigin();
};

void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
{
  ComputeScaleAndOrigin();
};

void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
{
  m_signX = (xLeftRight ?  1 : -1);
  m_signY = (yBottomUp  ? -1 :  1);
  ComputeScaleAndOrigin();
};

void wxDC::ComputeScaleAndOrigin(void)
{
  // CMB: copy scale to see if it changes
  double origScaleX = m_scaleX;
  double origScaleY = m_scaleY;

  m_scaleX = m_logicalScaleX * m_userScaleX;
  m_scaleY = m_logicalScaleY * m_userScaleY;

  // CMB: if scale has changed call SetPen to recalulate the line width 
  if (m_scaleX != origScaleX || m_scaleY != origScaleY)
  {
    // this is a bit artificial, but we need to force wxDC to think
    // the pen has changed
    wxPen* pen = & GetPen();
    wxPen tempPen;
    m_pen = tempPen;
    SetPen(* pen);
  }
};
Commit	Line	Data
a24aff65	1	/////////////////////////////////////////////////////////////////////////////
891d0563 DE	2	// Name: src/cocoa/dc.mm
	3	// Purpose: wxDC
	4	// Author: David Elliott
a24aff65	5	// Modified by:
891d0563	6	// Created: 2003/04/01
a24aff65	7	// RCS-ID: $Id$
891d0563 DE	8	// Copyright: (c) 2003 David Elliott
891d0563 DE	9	// Licence: wxWindows license
a24aff65 DE	10	/////////////////////////////////////////////////////////////////////////////
a24aff65 DE	11
a24aff65	12	#include "wx/dc.h"
a24aff65 DE	13	#include "wx/log.h"
a24aff65 DE	14
7fc77f30 DE	15	#include "wx/cocoa/autorelease.h"
7fc77f30 DE	16
891d0563 DE	17	#import <AppKit/NSBezierPath.h>
	18	#import <AppKit/NSTextStorage.h>
	19	#import <AppKit/NSLayoutManager.h>
	20	#import <AppKit/NSTextContainer.h>
	21	#import <AppKit/NSGraphicsContext.h>
	22	#import <AppKit/NSAffineTransform.h>
	23	#import <AppKit/NSColor.h>
	24	#import <AppKit/NSTypeSetter.h>
1fd17880	25	#import <AppKit/NSImage.h>
891d0563	26
fe8f7943 DE	27	#include <wx/listimpl.cpp>
	28	WX_DEFINE_LIST(wxCocoaDCStack);
	29
a24aff65	30	IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
891d0563 DE	31	WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
	32	WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
	33	WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;
fe8f7943	34	wxCocoaDCStack wxDC::sm_cocoaDCStack;
891d0563	35
5eb5a0ac DE	36	inline void CocoaSetPenForNSBezierPath(wxPen &pen, NSBezierPath *bezpath)
	37	{
	38	[pen.GetNSColor() set];
	39	const float *pattern;
	40	[bezpath setLineDash:pattern count:pen.GetCocoaLineDash(&pattern) phase:0.0];
	41	[bezpath setLineWidth:pen.GetWidth()];
	42	switch(pen.GetJoin())
	43	{
	44	case wxJOIN_BEVEL:
	45	[bezpath setLineJoinStyle:NSBevelLineJoinStyle];
	46	break;
	47	case wxJOIN_ROUND:
	48	[bezpath setLineJoinStyle:NSRoundLineJoinStyle];
	49	break;
	50	case wxJOIN_MITER:
	51	[bezpath setLineJoinStyle:NSMiterLineJoinStyle];
	52	break;
	53	}
	54	switch(pen.GetCap())
	55	{
	56	case wxCAP_ROUND:
	57	[bezpath setLineCapStyle:NSRoundLineCapStyle];
	58	break;
	59	case wxCAP_PROJECTING:
	60	[bezpath setLineCapStyle:NSSquareLineCapStyle];
	61	break;
	62	case wxCAP_BUTT:
	63	[bezpath setLineCapStyle:NSButtLineCapStyle];
	64	break;
	65	}
	66	}
	67
891d0563 DE	68	void wxDC::CocoaInitializeTextSystem()
	69	{
	70	wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized! BAD PROGRAMMER!");
	71
	72	sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];
	73
	74	sm_cocoaNSLayoutManager = [[NSLayoutManager alloc] init];
	75	[sm_cocoaNSTextStorage addLayoutManager:sm_cocoaNSLayoutManager];
	76	// NSTextStorage retains NSLayoutManager, but so do we
	77	// [sm_cocoaNSLayoutManager release]; [sm_cocoaNSLayoutManager retain];
	78
	79	// NOTE: initWithContainerSize is the designated initializer, but the
	80	// Apple CircleView sample gets away with just calling init, which
	81	// is all we really need for our purposes.
	82	sm_cocoaNSTextContainer = [[NSTextContainer alloc] init];
	83	[sm_cocoaNSLayoutManager addTextContainer:sm_cocoaNSTextContainer];
	84	// NSLayoutManager retains NSTextContainer, but so do we
	85	// [sm_cocoaNSTextContainer release]; [sm_cocoaNSTextContainer retain];
	86	}
	87
	88	void wxDC::CocoaShutdownTextSystem()
	89	{
	90	[sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
	91	[sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
	92	[sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
	93	}
	94
fe8f7943 DE	95	void wxDC::CocoaUnwindStackAndLoseFocus()
	96	{
	97	wxCocoaDCStack::Node *ourNode=sm_cocoaDCStack.Find(this);
	98	if(ourNode)
	99	{
	100	wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
	101	for(;node!=ourNode; node=sm_cocoaDCStack.GetFirst())
	102	{
	103	wxDC *dc = node->GetData();
	104	wxASSERT(dc);
	105	wxASSERT(dc!=this);
	106	if(!dc->CocoaUnlockFocus())
	107	{
	108	wxFAIL_MSG("Unable to unlock focus on higher-level DC!");
	109	}
	110	sm_cocoaDCStack.DeleteNode(node);
	111	}
	112	wxASSERT(node==ourNode);
	113	wxASSERT(ourNode->GetData() == this);
	114	ourNode->GetData()->CocoaUnlockFocus();
	115	sm_cocoaDCStack.DeleteNode(ourNode);
	116	}
	117	}
	118
	119	bool wxDC::CocoaUnwindStackAndTakeFocus()
	120	{
	121	wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
	122	for(;node;node = sm_cocoaDCStack.GetFirst())
	123	{
	124	wxDC *dc = node->GetData();
	125	wxASSERT(dc);
	126	// If we're on the stack, then it's unwound enough and we have focus
	127	if(dc==this)
	128	return true;
	129	// If unable to unlockFocus (e.g. wxPaintDC) stop here
	130	if(!dc->CocoaUnlockFocus())
	131	break;
	132	sm_cocoaDCStack.DeleteNode(node);
	133	}
	134	return CocoaLockFocus();
	135	}
	136
891d0563 DE	137	wxDC::wxDC(void)
891d0563 DE	138	{
fe8f7943 DE	139	m_cocoaFlipped = false;
fe8f7943 DE	140	m_cocoaHeight = 0.0;
5eb5a0ac	141	m_pen = *wxBLACK_PEN;
891d0563 DE	142	}
	143
	144	wxDC::~wxDC(void)
	145	{
	146	}
	147
fe8f7943 DE	148	bool wxDC::CocoaLockFocus()
	149	{
	150	return false;
	151	}
	152
	153	bool wxDC::CocoaUnlockFocus()
	154	{
	155	return false;
	156	}
	157
	158	void wxDC::CocoaApplyTransformations()
	159	{
	160	// This transform flips the graphics since wxDC uses top-left origin
	161	if(!m_cocoaFlipped)
	162	{
	163	// The transform is auto released
	164	NSAffineTransform *transform = [NSAffineTransform transform];
	165	/* x' = 1x + 0y + 0
	166	y' = 0x + -1y + window's height
	167	*/
	168	NSAffineTransformStruct matrix = {
	169	1, 0
	170	, 0, -1
	171	, 0, m_cocoaHeight
	172	};
	173	[transform setTransformStruct: matrix];
	174	// Apply the transform
	175	[transform concat];
	176	}
	177	// TODO: Apply scaling transformation
	178	}
	179
891d0563 DE	180	void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
891d0563 DE	181	{
fe8f7943	182	if(!CocoaTakeFocus()) return;
891d0563	183	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
5eb5a0ac	184	CocoaSetPenForNSBezierPath(m_pen,bezpath);
891d0563	185	[bezpath stroke];
c3b0c2c3 DE	186	[m_brush.GetNSColor() set];
c3b0c2c3 DE	187	[bezpath fill];
891d0563 DE	188	}
	189
	190	void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
	191	{
fe8f7943	192	if(!CocoaTakeFocus()) return;
891d0563 DE	193	NSBezierPath *bezpath = [NSBezierPath bezierPath];
	194	[bezpath moveToPoint:NSMakePoint(x1,y1)];
	195	[bezpath lineToPoint:NSMakePoint(x2,y2)];
c3b0c2c3	196
5eb5a0ac	197	CocoaSetPenForNSBezierPath(m_pen,bezpath);
891d0563 DE	198	[bezpath stroke];
	199	}
	200
	201	void wxDC::DoGetTextExtent(const wxString& text, wxCoord x, wxCoord y, wxCoord descent, wxCoord externalLeading, wxFont *theFont) const
	202	{
7fc77f30	203	wxAutoNSAutoreleasePool pool;
891d0563 DE	204	// FIXME: Cache this so it can be used for DoDrawText
	205	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
	206	NSAttributedString *attributedString = [[NSAttributedString alloc]
	207	initWithString:[NSString stringWithCString:text.c_str()]];
	208	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	209	[attributedString release];
	210
	211	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
	212	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
	213	if(x)
dc483f61	214	*x=(int)usedRect.size.width;
891d0563	215	if(y)
dc483f61	216	*y=(int)usedRect.size.height;
891d0563 DE	217	if(descent)
	218	*descent=0;
	219	if(externalLeading)
	220	*externalLeading=0;
	221	}
	222
	223	void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
	224	{
fe8f7943	225	if(!CocoaTakeFocus()) return;
891d0563 DE	226	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
	227	NSAttributedString *attributedString = [[NSAttributedString alloc]
	228	initWithString:[NSString stringWithCString:text.c_str()]];
	229	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	230	[attributedString release];
	231
c0440c78 DE	232	// Set the color (and later font) attributes
	233	NSColor *fgColor = m_textForegroundColour.GetNSColor();
	234	NSColor *bgColor = m_textBackgroundColour.GetNSColor();
	235	if(!fgColor)
	236	fgColor = [NSColor clearColor];
	237	if(!bgColor)
	238	bgColor = [NSColor clearColor];
	239	NSDictionary *attrDict = [[NSDictionary alloc] initWithObjectsAndKeys:
	240	fgColor, NSForegroundColorAttributeName,
	241	bgColor, NSBackgroundColorAttributeName,
	242	nil];
	243	[sm_cocoaNSTextStorage addAttributes: attrDict range:NSMakeRange(0,[sm_cocoaNSTextStorage length])];
	244	[attrDict release];
	245
891d0563 DE	246	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
891d0563 DE	247	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
13fc3db4 DE	248	// NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
	249	// there is no length or we don't start at zero
	250	if(!glyphRange.length)
	251	return;
	252	wxASSERT_MSG(glyphRange.location==0,"glyphRange must begin at zero");
891d0563 DE	253
	254	NSAffineTransform *transform = [NSAffineTransform transform];
	255	[transform translateXBy:x yBy:y];
	256
	257	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	258	/* x' = 1x + 0y + 0
	259	y' = 0x + -1y + window's height
	260	*/
	261	NSAffineTransformStruct matrix = {
	262	1, 0
	263	, 0, -1
	264	, 0, usedRect.size.height
	265	};
	266	[flipTransform setTransformStruct: matrix];
	267
	268	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	269	[context saveGraphicsState];
	270	[transform concat];
	271	[flipTransform concat];
c3b0c2c3	272	#if 0
891d0563 DE	273	// Draw+fill a rectangle so we can see where the shit is supposed to be.
	274	wxLogDebug("(%f,%f) (%fx%f)",usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);
	275	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
	276	[[NSColor blackColor] set];
	277	[bezpath stroke];
	278	[[NSColor blueColor] set];
	279	[bezpath fill];
c3b0c2c3	280	#endif
891d0563 DE	281
	282	NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
	283	layoutLocation.x = 0.0;
	284	layoutLocation.y *= -1.0;
	285	layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
c0440c78 DE	286	if(m_backgroundMode==wxSOLID)
c0440c78 DE	287	[sm_cocoaNSLayoutManager drawBackgroundForGlyphRange:glyphRange atPoint:NSZeroPoint];
891d0563 DE	288	[sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange atPoint:layoutLocation];
	289
	290	[context restoreGraphicsState];
	291	}
	292
2894667f DE	293	// wxDCBase functions
	294	int wxDCBase::DeviceToLogicalX(int x) const
	295	{
	296	return x;
	297	}
	298
	299	int wxDCBase::DeviceToLogicalY(int y) const
	300	{
	301	return y;
	302	}
	303
276a1256 DE	304	int wxDCBase::DeviceToLogicalXRel(int x) const
	305	{
	306	return x;
	307	}
	308
	309	int wxDCBase::DeviceToLogicalYRel(int y) const
	310	{
	311	return y;
	312	}
	313
2894667f DE	314	int wxDCBase::LogicalToDeviceX(int x) const
	315	{
	316	return x;
	317	}
	318
	319	int wxDCBase::LogicalToDeviceY(int y) const
	320	{
	321	return y;
	322	}
	323
276a1256 DE	324	int wxDCBase::LogicalToDeviceXRel(int x) const
	325	{
	326	return x;
	327	}
	328
	329	int wxDCBase::LogicalToDeviceYRel(int y) const
	330	{
	331	return y;
	332	}
	333
891d0563 DE	334	///////////////////////////////////////////////////////////////////////////
	335	// cut here, the rest is stubs
	336	///////////////////////////////////////////////////////////////////////////
a24aff65 DE	337
	338	//-----------------------------------------------------------------------------
	339	// constants
	340	//-----------------------------------------------------------------------------
	341
	342	#define mm2inches 0.0393700787402
	343	#define inches2mm 25.4
	344	#define mm2twips 56.6929133859
	345	#define twips2mm 0.0176388888889
	346	#define mm2pt 2.83464566929
	347	#define pt2mm 0.352777777778
	348
	349	//-----------------------------------------------------------------------------
	350	// wxDC
	351	//-----------------------------------------------------------------------------
	352
a24aff65 DE	353	void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
	354	{
	355	};
	356
	357	void wxDC::DoDrawPoint( int x, int y )
	358	{
	359	};
	360
	361	void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
	362	{
	363	};
	364
	365	void wxDC::DoDrawLines( int, wxPoint *, int, int )
	366	{
	367	}
	368
a24aff65 DE	369	int wxDC::GetDepth() const
	370	{
	371	return 0;
	372	}
	373
	374	wxSize wxDC::GetPPI() const
	375	{
	376	return wxSize(0,0);
	377	}
	378
	379	bool wxDC::CanGetTextExtent() const
	380	{
	381	return false;
	382	}
	383
a24aff65 DE	384	wxCoord wxDC::GetCharHeight() const
	385	{
	386	return 0;
	387	}
	388
	389	wxCoord wxDC::GetCharWidth() const
	390	{
	391	return 0;
	392	}
	393
	394	bool wxDC::CanDrawBitmap() const
	395	{
1fd17880	396	return true;
a24aff65 DE	397	}
	398
	399	bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
	400	{
	401	return false;
	402	}
	403
	404	void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
	405	{
	406	}
	407
	408	void wxDC::SetPen(const wxPen& pen)
	409	{
5eb5a0ac	410	m_pen = pen;
a24aff65 DE	411	}
	412
	413	void wxDC::SetBrush(const wxBrush& brush)
	414	{
c3b0c2c3	415	m_brush = brush;
a24aff65 DE	416	}
	417
	418	void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
	419	{
	420	}
	421
	422	void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	423	{
	424	}
	425
	426	void wxDC::DestroyClippingRegion()
	427	{
	428	}
	429
	430	void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
	431	{
	432	}
	433
	434	void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
	435	{
	436	}
	437
	438	void wxDC::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)
	439	{
	440	}
	441
a24aff65 DE	442	void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	443	{
	444	}
	445
	446	void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
	447	{
fe8f7943	448	if(!CocoaTakeFocus()) return;
1fd17880 DE	449	if(!bmp.Ok())
	450	return;
	451
	452	#if 0
	453	// Draw a rect so we can see where it's supposed to be
	454	wxLogDebug("image at (%d,%d) size %dx%d",x,y,bmp.GetWidth(),bmp.GetHeight());
	455	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,bmp.GetWidth(),bmp.GetHeight())];
	456	[[NSColor blackColor] set];
	457	[bezpath stroke];
	458	[[NSColor blueColor] set];
	459	[bezpath fill];
	460	#endif // 0
	461
	462	NSAffineTransform *transform = [NSAffineTransform transform];
	463	[transform translateXBy:x yBy:y];
	464
	465	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	466	/* x' = 1x + 0y + 0
	467	y' = 0x + -1y + window's height
	468	*/
	469	NSAffineTransformStruct matrix = {
	470	1, 0
	471	, 0, -1
	472	, 0, bmp.GetHeight()
	473	};
	474	[flipTransform setTransformStruct: matrix];
	475
	476	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	477	[context saveGraphicsState];
	478	[transform concat];
	479	[flipTransform concat];
	480
	481	NSImage *nsimage = [[NSImage alloc]
	482	initWithSize:NSMakeSize(bmp.GetWidth(), bmp.GetHeight())];
	483	[nsimage addRepresentation: const_cast<wxBitmap&>(bmp).GetNSBitmapImageRep()];
	484	[nsimage drawAtPoint: NSMakePoint(0,0)
	485	fromRect: NSMakeRect(0.0,0.0,bmp.GetWidth(),bmp.GetHeight())
	486	operation: NSCompositeCopy
	487	fraction: 1.0];
	488
	489	[nsimage release];
	490	[context restoreGraphicsState];
a24aff65 DE	491	}
	492
	493	bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
	494	{
	495	return false;
	496	}
	497
	498	void wxDC::DoCrossHair(wxCoord x, wxCoord y)
	499	{
	500	}
	501
a24aff65 DE	502
a24aff65 DE	503	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)
2c23fe91 DE	504	{
	505	if(!CocoaTakeFocus()) return false;
	506	if(!source) return false;
	507	return source->CocoaDoBlitOnFocusedDC(xdest,ydest,width,height,
	508	xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
	509	}
	510
	511	bool wxDC::CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
	512	wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
	513	int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask)
a24aff65 DE	514	{
	515	return false;
	516	}
	517
	518	void wxDC::DoGetSize( int* width, int* height ) const
	519	{
	520	*width = m_maxX-m_minX;
	521	*height = m_maxY-m_minY;
	522	};
	523
	524	void wxDC::DoGetSizeMM( int* width, int* height ) const
	525	{
	526	int w = 0;
	527	int h = 0;
	528	GetSize( &w, &h );
	529	};
	530
	531	void wxDC::SetTextForeground( const wxColour &col )
	532	{
	533	if (!Ok()) return;
	534	m_textForegroundColour = col;
	535	};
	536
	537	void wxDC::SetTextBackground( const wxColour &col )
	538	{
	539	if (!Ok()) return;
	540	m_textBackgroundColour = col;
	541	};
	542
	543	void wxDC::Clear()
	544	{
	545	}
	546
7bc429ef	547	void wxDC::SetBackground(const wxBrush& brush)
a24aff65	548	{
7bc429ef	549	m_backgroundBrush = brush;
a24aff65 DE	550	}
	551
	552	void wxDC::SetPalette(const wxPalette&)
	553	{
	554	}
	555
	556	void wxDC::SetLogicalFunction(int)
	557	{
	558	}
	559
	560
	561	void wxDC::SetMapMode( int mode )
	562	{
	563	switch (mode)
	564	{
	565	case wxMM_TWIPS:
	566	break;
	567	case wxMM_POINTS:
	568	break;
	569	case wxMM_METRIC:
	570	break;
	571	case wxMM_LOMETRIC:
	572	break;
	573	default:
	574	case wxMM_TEXT:
	575	SetLogicalScale( 1.0, 1.0 );
	576	break;
	577	};
	578	if (mode != wxMM_TEXT)
	579	{
	580	};
	581	};
	582
	583	void wxDC::SetUserScale( double x, double y )
	584	{
	585	// allow negative ? -> no
	586	m_userScaleX = x;
	587	m_userScaleY = y;
	588	ComputeScaleAndOrigin();
	589	};
	590
	591	void wxDC::SetLogicalScale( double x, double y )
	592	{
	593	// allow negative ?
	594	m_logicalScaleX = x;
	595	m_logicalScaleY = y;
	596	ComputeScaleAndOrigin();
	597	};
	598
	599	void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
	600	{
	601	m_logicalOriginX = x * m_signX; // is this still correct ?
	602	m_logicalOriginY = y * m_signY;
	603	ComputeScaleAndOrigin();
	604	};
	605
	606	void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
	607	{
	608	ComputeScaleAndOrigin();
	609	};
	610
	611	void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
	612	{
	613	m_signX = (xLeftRight ? 1 : -1);
614	m_signY = (yBottomUp ? -1 : 1);
615	ComputeScaleAndOrigin();
616	};
617
618	void wxDC::ComputeScaleAndOrigin(void)
619	{
620	// CMB: copy scale to see if it changes
621	double origScaleX = m_scaleX;
622	double origScaleY = m_scaleY;
623
624	m_scaleX = m_logicalScaleX * m_userScaleX;
625	m_scaleY = m_logicalScaleY * m_userScaleY;
626
627	// CMB: if scale has changed call SetPen to recalulate the line width
628	if (m_scaleX != origScaleX \|\| m_scaleY != origScaleY)
629	{
630	// this is a bit artificial, but we need to force wxDC to think
631	// the pen has changed
632	wxPen* pen = & GetPen();
633	wxPen tempPen;
634	m_pen = tempPen;
635	SetPen(* pen);
636	}
637	};
638