[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/wxprec.h"
#ifndef WX_PRECOMP
    #include "wx/log.h"
    #include "wx/dc.h"
#endif //WX_PRECOMP

#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
449c5673 DE	12	#include "wx/wxprec.h"
	13	#ifndef WX_PRECOMP
	14	#include "wx/log.h"
	15	#include "wx/dc.h"
	16	#endif //WX_PRECOMP
a24aff65	17
7fc77f30 DE	18	#include "wx/cocoa/autorelease.h"
7fc77f30 DE	19
891d0563 DE	20	#import <AppKit/NSBezierPath.h>
	21	#import <AppKit/NSTextStorage.h>
	22	#import <AppKit/NSLayoutManager.h>
	23	#import <AppKit/NSTextContainer.h>
	24	#import <AppKit/NSGraphicsContext.h>
	25	#import <AppKit/NSAffineTransform.h>
	26	#import <AppKit/NSColor.h>
	27	#import <AppKit/NSTypeSetter.h>
1fd17880	28	#import <AppKit/NSImage.h>
891d0563	29
fe8f7943 DE	30	#include <wx/listimpl.cpp>
	31	WX_DEFINE_LIST(wxCocoaDCStack);
	32
a24aff65	33	IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
891d0563 DE	34	WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
	35	WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
	36	WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;
fe8f7943	37	wxCocoaDCStack wxDC::sm_cocoaDCStack;
891d0563	38
5eb5a0ac DE	39	inline void CocoaSetPenForNSBezierPath(wxPen &pen, NSBezierPath *bezpath)
	40	{
	41	[pen.GetNSColor() set];
	42	const float *pattern;
	43	[bezpath setLineDash:pattern count:pen.GetCocoaLineDash(&pattern) phase:0.0];
	44	[bezpath setLineWidth:pen.GetWidth()];
	45	switch(pen.GetJoin())
	46	{
	47	case wxJOIN_BEVEL:
	48	[bezpath setLineJoinStyle:NSBevelLineJoinStyle];
	49	break;
	50	case wxJOIN_ROUND:
	51	[bezpath setLineJoinStyle:NSRoundLineJoinStyle];
	52	break;
	53	case wxJOIN_MITER:
	54	[bezpath setLineJoinStyle:NSMiterLineJoinStyle];
	55	break;
	56	}
	57	switch(pen.GetCap())
	58	{
	59	case wxCAP_ROUND:
	60	[bezpath setLineCapStyle:NSRoundLineCapStyle];
	61	break;
	62	case wxCAP_PROJECTING:
	63	[bezpath setLineCapStyle:NSSquareLineCapStyle];
	64	break;
	65	case wxCAP_BUTT:
	66	[bezpath setLineCapStyle:NSButtLineCapStyle];
	67	break;
	68	}
	69	}
	70
891d0563 DE	71	void wxDC::CocoaInitializeTextSystem()
	72	{
	73	wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized! BAD PROGRAMMER!");
	74
	75	sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];
	76
	77	sm_cocoaNSLayoutManager = [[NSLayoutManager alloc] init];
	78	[sm_cocoaNSTextStorage addLayoutManager:sm_cocoaNSLayoutManager];
	79	// NSTextStorage retains NSLayoutManager, but so do we
	80	// [sm_cocoaNSLayoutManager release]; [sm_cocoaNSLayoutManager retain];
	81
	82	// NOTE: initWithContainerSize is the designated initializer, but the
	83	// Apple CircleView sample gets away with just calling init, which
	84	// is all we really need for our purposes.
	85	sm_cocoaNSTextContainer = [[NSTextContainer alloc] init];
	86	[sm_cocoaNSLayoutManager addTextContainer:sm_cocoaNSTextContainer];
	87	// NSLayoutManager retains NSTextContainer, but so do we
	88	// [sm_cocoaNSTextContainer release]; [sm_cocoaNSTextContainer retain];
	89	}
	90
	91	void wxDC::CocoaShutdownTextSystem()
	92	{
	93	[sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
	94	[sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
	95	[sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
	96	}
	97
fe8f7943 DE	98	void wxDC::CocoaUnwindStackAndLoseFocus()
	99	{
	100	wxCocoaDCStack::Node *ourNode=sm_cocoaDCStack.Find(this);
	101	if(ourNode)
	102	{
	103	wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
	104	for(;node!=ourNode; node=sm_cocoaDCStack.GetFirst())
	105	{
	106	wxDC *dc = node->GetData();
	107	wxASSERT(dc);
	108	wxASSERT(dc!=this);
	109	if(!dc->CocoaUnlockFocus())
	110	{
	111	wxFAIL_MSG("Unable to unlock focus on higher-level DC!");
	112	}
	113	sm_cocoaDCStack.DeleteNode(node);
	114	}
	115	wxASSERT(node==ourNode);
	116	wxASSERT(ourNode->GetData() == this);
	117	ourNode->GetData()->CocoaUnlockFocus();
	118	sm_cocoaDCStack.DeleteNode(ourNode);
	119	}
	120	}
	121
	122	bool wxDC::CocoaUnwindStackAndTakeFocus()
	123	{
	124	wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
	125	for(;node;node = sm_cocoaDCStack.GetFirst())
	126	{
	127	wxDC *dc = node->GetData();
	128	wxASSERT(dc);
	129	// If we're on the stack, then it's unwound enough and we have focus
	130	if(dc==this)
	131	return true;
	132	// If unable to unlockFocus (e.g. wxPaintDC) stop here
	133	if(!dc->CocoaUnlockFocus())
	134	break;
	135	sm_cocoaDCStack.DeleteNode(node);
	136	}
	137	return CocoaLockFocus();
	138	}
	139
891d0563 DE	140	wxDC::wxDC(void)
891d0563 DE	141	{
fe8f7943 DE	142	m_cocoaFlipped = false;
fe8f7943 DE	143	m_cocoaHeight = 0.0;
5eb5a0ac	144	m_pen = *wxBLACK_PEN;
891d0563 DE	145	}
	146
	147	wxDC::~wxDC(void)
	148	{
	149	}
	150
fe8f7943 DE	151	bool wxDC::CocoaLockFocus()
	152	{
	153	return false;
	154	}
	155
	156	bool wxDC::CocoaUnlockFocus()
	157	{
	158	return false;
	159	}
	160
	161	void wxDC::CocoaApplyTransformations()
	162	{
	163	// This transform flips the graphics since wxDC uses top-left origin
	164	if(!m_cocoaFlipped)
	165	{
	166	// The transform is auto released
	167	NSAffineTransform *transform = [NSAffineTransform transform];
	168	/* x' = 1x + 0y + 0
	169	y' = 0x + -1y + window's height
	170	*/
	171	NSAffineTransformStruct matrix = {
	172	1, 0
	173	, 0, -1
	174	, 0, m_cocoaHeight
	175	};
	176	[transform setTransformStruct: matrix];
	177	// Apply the transform
	178	[transform concat];
	179	}
	180	// TODO: Apply scaling transformation
	181	}
	182
891d0563 DE	183	void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
891d0563 DE	184	{
fe8f7943	185	if(!CocoaTakeFocus()) return;
891d0563	186	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
5eb5a0ac	187	CocoaSetPenForNSBezierPath(m_pen,bezpath);
891d0563	188	[bezpath stroke];
c3b0c2c3 DE	189	[m_brush.GetNSColor() set];
c3b0c2c3 DE	190	[bezpath fill];
891d0563 DE	191	}
	192
	193	void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
	194	{
fe8f7943	195	if(!CocoaTakeFocus()) return;
891d0563 DE	196	NSBezierPath *bezpath = [NSBezierPath bezierPath];
	197	[bezpath moveToPoint:NSMakePoint(x1,y1)];
	198	[bezpath lineToPoint:NSMakePoint(x2,y2)];
c3b0c2c3	199
5eb5a0ac	200	CocoaSetPenForNSBezierPath(m_pen,bezpath);
891d0563 DE	201	[bezpath stroke];
	202	}
	203
	204	void wxDC::DoGetTextExtent(const wxString& text, wxCoord x, wxCoord y, wxCoord descent, wxCoord externalLeading, wxFont *theFont) const
	205	{
7fc77f30	206	wxAutoNSAutoreleasePool pool;
891d0563 DE	207	// FIXME: Cache this so it can be used for DoDrawText
	208	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
	209	NSAttributedString *attributedString = [[NSAttributedString alloc]
	210	initWithString:[NSString stringWithCString:text.c_str()]];
	211	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	212	[attributedString release];
	213
	214	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
	215	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
	216	if(x)
dc483f61	217	*x=(int)usedRect.size.width;
891d0563	218	if(y)
dc483f61	219	*y=(int)usedRect.size.height;
891d0563 DE	220	if(descent)
	221	*descent=0;
	222	if(externalLeading)
	223	*externalLeading=0;
	224	}
	225
	226	void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
	227	{
fe8f7943	228	if(!CocoaTakeFocus()) return;
891d0563 DE	229	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
	230	NSAttributedString *attributedString = [[NSAttributedString alloc]
	231	initWithString:[NSString stringWithCString:text.c_str()]];
	232	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	233	[attributedString release];
	234
c0440c78 DE	235	// Set the color (and later font) attributes
	236	NSColor *fgColor = m_textForegroundColour.GetNSColor();
	237	NSColor *bgColor = m_textBackgroundColour.GetNSColor();
	238	if(!fgColor)
	239	fgColor = [NSColor clearColor];
	240	if(!bgColor)
	241	bgColor = [NSColor clearColor];
	242	NSDictionary *attrDict = [[NSDictionary alloc] initWithObjectsAndKeys:
	243	fgColor, NSForegroundColorAttributeName,
	244	bgColor, NSBackgroundColorAttributeName,
	245	nil];
	246	[sm_cocoaNSTextStorage addAttributes: attrDict range:NSMakeRange(0,[sm_cocoaNSTextStorage length])];
	247	[attrDict release];
	248
891d0563 DE	249	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
891d0563 DE	250	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
13fc3db4 DE	251	// NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
	252	// there is no length or we don't start at zero
	253	if(!glyphRange.length)
	254	return;
	255	wxASSERT_MSG(glyphRange.location==0,"glyphRange must begin at zero");
891d0563 DE	256
	257	NSAffineTransform *transform = [NSAffineTransform transform];
	258	[transform translateXBy:x yBy:y];
	259
	260	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	261	/* x' = 1x + 0y + 0
	262	y' = 0x + -1y + window's height
	263	*/
	264	NSAffineTransformStruct matrix = {
	265	1, 0
	266	, 0, -1
	267	, 0, usedRect.size.height
	268	};
	269	[flipTransform setTransformStruct: matrix];
	270
	271	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	272	[context saveGraphicsState];
	273	[transform concat];
	274	[flipTransform concat];
c3b0c2c3	275	#if 0
891d0563 DE	276	// Draw+fill a rectangle so we can see where the shit is supposed to be.
	277	wxLogDebug("(%f,%f) (%fx%f)",usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);
	278	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
	279	[[NSColor blackColor] set];
	280	[bezpath stroke];
	281	[[NSColor blueColor] set];
	282	[bezpath fill];
c3b0c2c3	283	#endif
891d0563 DE	284
	285	NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
	286	layoutLocation.x = 0.0;
	287	layoutLocation.y *= -1.0;
	288	layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
c0440c78 DE	289	if(m_backgroundMode==wxSOLID)
c0440c78 DE	290	[sm_cocoaNSLayoutManager drawBackgroundForGlyphRange:glyphRange atPoint:NSZeroPoint];
891d0563 DE	291	[sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange atPoint:layoutLocation];
	292
	293	[context restoreGraphicsState];
	294	}
	295
2894667f DE	296	// wxDCBase functions
	297	int wxDCBase::DeviceToLogicalX(int x) const
	298	{
	299	return x;
	300	}
	301
	302	int wxDCBase::DeviceToLogicalY(int y) const
	303	{
	304	return y;
	305	}
	306
276a1256 DE	307	int wxDCBase::DeviceToLogicalXRel(int x) const
	308	{
	309	return x;
	310	}
	311
	312	int wxDCBase::DeviceToLogicalYRel(int y) const
	313	{
	314	return y;
	315	}
	316
2894667f DE	317	int wxDCBase::LogicalToDeviceX(int x) const
	318	{
	319	return x;
	320	}
	321
	322	int wxDCBase::LogicalToDeviceY(int y) const
	323	{
	324	return y;
	325	}
	326
276a1256 DE	327	int wxDCBase::LogicalToDeviceXRel(int x) const
	328	{
	329	return x;
	330	}
	331
	332	int wxDCBase::LogicalToDeviceYRel(int y) const
	333	{
	334	return y;
	335	}
	336
891d0563 DE	337	///////////////////////////////////////////////////////////////////////////
	338	// cut here, the rest is stubs
	339	///////////////////////////////////////////////////////////////////////////
a24aff65 DE	340
	341	//-----------------------------------------------------------------------------
	342	// constants
	343	//-----------------------------------------------------------------------------
	344
	345	#define mm2inches 0.0393700787402
	346	#define inches2mm 25.4
	347	#define mm2twips 56.6929133859
	348	#define twips2mm 0.0176388888889
	349	#define mm2pt 2.83464566929
	350	#define pt2mm 0.352777777778
	351
	352	//-----------------------------------------------------------------------------
	353	// wxDC
	354	//-----------------------------------------------------------------------------
	355
a24aff65 DE	356	void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
	357	{
	358	};
	359
	360	void wxDC::DoDrawPoint( int x, int y )
	361	{
	362	};
	363
	364	void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
	365	{
	366	};
	367
	368	void wxDC::DoDrawLines( int, wxPoint *, int, int )
	369	{
	370	}
	371
a24aff65 DE	372	int wxDC::GetDepth() const
	373	{
	374	return 0;
	375	}
	376
	377	wxSize wxDC::GetPPI() const
	378	{
	379	return wxSize(0,0);
	380	}
	381
	382	bool wxDC::CanGetTextExtent() const
	383	{
	384	return false;
	385	}
	386
a24aff65 DE	387	wxCoord wxDC::GetCharHeight() const
	388	{
	389	return 0;
	390	}
	391
	392	wxCoord wxDC::GetCharWidth() const
	393	{
	394	return 0;
	395	}
	396
	397	bool wxDC::CanDrawBitmap() const
	398	{
1fd17880	399	return true;
a24aff65 DE	400	}
	401
	402	bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
	403	{
	404	return false;
	405	}
	406
	407	void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
	408	{
	409	}
	410
	411	void wxDC::SetPen(const wxPen& pen)
	412	{
5eb5a0ac	413	m_pen = pen;
a24aff65 DE	414	}
	415
	416	void wxDC::SetBrush(const wxBrush& brush)
	417	{
c3b0c2c3	418	m_brush = brush;
a24aff65 DE	419	}
	420
	421	void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
	422	{
	423	}
	424
	425	void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	426	{
	427	}
	428
	429	void wxDC::DestroyClippingRegion()
	430	{
	431	}
	432
	433	void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
	434	{
	435	}
	436
	437	void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
	438	{
	439	}
	440
	441	void wxDC::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)
	442	{
	443	}
	444
a24aff65 DE	445	void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	446	{
	447	}
	448
	449	void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
	450	{
fe8f7943	451	if(!CocoaTakeFocus()) return;
1fd17880 DE	452	if(!bmp.Ok())
	453	return;
	454
	455	#if 0
	456	// Draw a rect so we can see where it's supposed to be
	457	wxLogDebug("image at (%d,%d) size %dx%d",x,y,bmp.GetWidth(),bmp.GetHeight());
	458	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,bmp.GetWidth(),bmp.GetHeight())];
	459	[[NSColor blackColor] set];
	460	[bezpath stroke];
	461	[[NSColor blueColor] set];
	462	[bezpath fill];
	463	#endif // 0
	464
	465	NSAffineTransform *transform = [NSAffineTransform transform];
	466	[transform translateXBy:x yBy:y];
	467
	468	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	469	/* x' = 1x + 0y + 0
	470	y' = 0x + -1y + window's height
	471	*/
	472	NSAffineTransformStruct matrix = {
	473	1, 0
	474	, 0, -1
	475	, 0, bmp.GetHeight()
	476	};
	477	[flipTransform setTransformStruct: matrix];
	478
	479	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	480	[context saveGraphicsState];
	481	[transform concat];
	482	[flipTransform concat];
	483
	484	NSImage *nsimage = [[NSImage alloc]
	485	initWithSize:NSMakeSize(bmp.GetWidth(), bmp.GetHeight())];
	486	[nsimage addRepresentation: const_cast<wxBitmap&>(bmp).GetNSBitmapImageRep()];
	487	[nsimage drawAtPoint: NSMakePoint(0,0)
	488	fromRect: NSMakeRect(0.0,0.0,bmp.GetWidth(),bmp.GetHeight())
	489	operation: NSCompositeCopy
	490	fraction: 1.0];
	491
	492	[nsimage release];
	493	[context restoreGraphicsState];
a24aff65 DE	494	}
	495
	496	bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
	497	{
	498	return false;
	499	}
	500
	501	void wxDC::DoCrossHair(wxCoord x, wxCoord y)
	502	{
	503	}
	504
a24aff65 DE	505
a24aff65 DE	506	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	507	{
	508	if(!CocoaTakeFocus()) return false;
	509	if(!source) return false;
	510	return source->CocoaDoBlitOnFocusedDC(xdest,ydest,width,height,
	511	xsrc, ysrc, rop, useMask, xsrcMask, ysrcMask);
	512	}
	513
	514	bool wxDC::CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
	515	wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
	516	int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask)
a24aff65 DE	517	{
	518	return false;
	519	}
	520
	521	void wxDC::DoGetSize( int* width, int* height ) const
	522	{
	523	*width = m_maxX-m_minX;
	524	*height = m_maxY-m_minY;
	525	};
	526
	527	void wxDC::DoGetSizeMM( int* width, int* height ) const
	528	{
	529	int w = 0;
	530	int h = 0;
	531	GetSize( &w, &h );
	532	};
	533
	534	void wxDC::SetTextForeground( const wxColour &col )
	535	{
	536	if (!Ok()) return;
	537	m_textForegroundColour = col;
	538	};
	539
	540	void wxDC::SetTextBackground( const wxColour &col )
	541	{
	542	if (!Ok()) return;
	543	m_textBackgroundColour = col;
	544	};
	545
	546	void wxDC::Clear()
	547	{
	548	}
	549
7bc429ef	550	void wxDC::SetBackground(const wxBrush& brush)
a24aff65	551	{
7bc429ef	552	m_backgroundBrush = brush;
a24aff65 DE	553	}
	554
	555	void wxDC::SetPalette(const wxPalette&)
	556	{
	557	}
	558
	559	void wxDC::SetLogicalFunction(int)
	560	{
	561	}
	562
	563
	564	void wxDC::SetMapMode( int mode )
	565	{
	566	switch (mode)
	567	{
	568	case wxMM_TWIPS:
	569	break;
	570	case wxMM_POINTS:
	571	break;
	572	case wxMM_METRIC:
	573	break;
	574	case wxMM_LOMETRIC:
	575	break;
	576	default:
	577	case wxMM_TEXT:
	578	SetLogicalScale( 1.0, 1.0 );
	579	break;
	580	};
	581	if (mode != wxMM_TEXT)
	582	{
	583	};
	584	};
	585
	586	void wxDC::SetUserScale( double x, double y )
	587	{
	588	// allow negative ? -> no
	589	m_userScaleX = x;
	590	m_userScaleY = y;
	591	ComputeScaleAndOrigin();
	592	};
	593
	594	void wxDC::SetLogicalScale( double x, double y )
	595	{
	596	// allow negative ?
	597	m_logicalScaleX = x;
	598	m_logicalScaleY = y;
	599	ComputeScaleAndOrigin();
	600	};
	601
	602	void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
	603	{
	604	m_logicalOriginX = x * m_signX; // is this still correct ?
	605	m_logicalOriginY = y * m_signY;
	606	ComputeScaleAndOrigin();
	607	};
	608
	609	void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
	610	{
	611	ComputeScaleAndOrigin();
	612	};
	613
	614	void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
	615	{
	616	m_signX = (xLeftRight ? 1 : -1);
617	m_signY = (yBottomUp ? -1 : 1);
618	ComputeScaleAndOrigin();
619	};
620
621	void wxDC::ComputeScaleAndOrigin(void)
622	{
623	// CMB: copy scale to see if it changes
624	double origScaleX = m_scaleX;
625	double origScaleY = m_scaleY;
626
627	m_scaleX = m_logicalScaleX * m_userScaleX;
628	m_scaleY = m_logicalScaleY * m_userScaleY;
629
630	// CMB: if scale has changed call SetPen to recalulate the line width
631	if (m_scaleX != origScaleX \|\| m_scaleY != origScaleY)
632	{
633	// this is a bit artificial, but we need to force wxDC to think
634	// the pen has changed
635	wxPen* pen = & GetPen();
636	wxPen tempPen;
637	m_pen = tempPen;
638	SetPen(* pen);
639	}
640	};
641