[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"
#include "wx/cocoa/string.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,wxT("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(wxT("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, wxT("Text system has not been initialized.  BAD PROGRAMMER!"));
    NSAttributedString *attributedString = [[NSAttributedString alloc]
            initWithString:wxNSStringWithWxString(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, wxT("Text system has not been initialized.  BAD PROGRAMMER!"));
    NSAttributedString *attributedString = [[NSAttributedString alloc]
            initWithString:wxNSStringWithWxString(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,wxT("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(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];
    [[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(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)
{
    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	18	#include "wx/cocoa/autorelease.h"
b0c0a393	19	#include "wx/cocoa/string.h"
7fc77f30	20
891d0563 DE	21	#import <AppKit/NSBezierPath.h>
	22	#import <AppKit/NSTextStorage.h>
	23	#import <AppKit/NSLayoutManager.h>
	24	#import <AppKit/NSTextContainer.h>
	25	#import <AppKit/NSGraphicsContext.h>
	26	#import <AppKit/NSAffineTransform.h>
	27	#import <AppKit/NSColor.h>
f910a887	28	#import <AppKit/NSTypesetter.h>
1fd17880	29	#import <AppKit/NSImage.h>
891d0563	30
fe8f7943 DE	31	#include <wx/listimpl.cpp>
	32	WX_DEFINE_LIST(wxCocoaDCStack);
	33
a24aff65	34	IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
891d0563 DE	35	WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
	36	WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
	37	WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;
fe8f7943	38	wxCocoaDCStack wxDC::sm_cocoaDCStack;
891d0563	39
5eb5a0ac DE	40	inline void CocoaSetPenForNSBezierPath(wxPen &pen, NSBezierPath *bezpath)
	41	{
	42	[pen.GetNSColor() set];
	43	const float *pattern;
	44	[bezpath setLineDash:pattern count:pen.GetCocoaLineDash(&pattern) phase:0.0];
	45	[bezpath setLineWidth:pen.GetWidth()];
	46	switch(pen.GetJoin())
	47	{
	48	case wxJOIN_BEVEL:
	49	[bezpath setLineJoinStyle:NSBevelLineJoinStyle];
	50	break;
	51	case wxJOIN_ROUND:
	52	[bezpath setLineJoinStyle:NSRoundLineJoinStyle];
	53	break;
	54	case wxJOIN_MITER:
	55	[bezpath setLineJoinStyle:NSMiterLineJoinStyle];
	56	break;
	57	}
	58	switch(pen.GetCap())
	59	{
	60	case wxCAP_ROUND:
	61	[bezpath setLineCapStyle:NSRoundLineCapStyle];
	62	break;
	63	case wxCAP_PROJECTING:
	64	[bezpath setLineCapStyle:NSSquareLineCapStyle];
	65	break;
	66	case wxCAP_BUTT:
	67	[bezpath setLineCapStyle:NSButtLineCapStyle];
	68	break;
	69	}
	70	}
	71
891d0563 DE	72	void wxDC::CocoaInitializeTextSystem()
891d0563 DE	73	{
2b030203	74	wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,wxT("Text system already initalized! BAD PROGRAMMER!"));
891d0563 DE	75
	76	sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];
	77
	78	sm_cocoaNSLayoutManager = [[NSLayoutManager alloc] init];
	79	[sm_cocoaNSTextStorage addLayoutManager:sm_cocoaNSLayoutManager];
	80	// NSTextStorage retains NSLayoutManager, but so do we
	81	// [sm_cocoaNSLayoutManager release]; [sm_cocoaNSLayoutManager retain];
	82
	83	// NOTE: initWithContainerSize is the designated initializer, but the
	84	// Apple CircleView sample gets away with just calling init, which
	85	// is all we really need for our purposes.
	86	sm_cocoaNSTextContainer = [[NSTextContainer alloc] init];
	87	[sm_cocoaNSLayoutManager addTextContainer:sm_cocoaNSTextContainer];
	88	// NSLayoutManager retains NSTextContainer, but so do we
	89	// [sm_cocoaNSTextContainer release]; [sm_cocoaNSTextContainer retain];
	90	}
	91
	92	void wxDC::CocoaShutdownTextSystem()
	93	{
	94	[sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
	95	[sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
	96	[sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
	97	}
	98
fe8f7943 DE	99	void wxDC::CocoaUnwindStackAndLoseFocus()
	100	{
	101	wxCocoaDCStack::Node *ourNode=sm_cocoaDCStack.Find(this);
	102	if(ourNode)
	103	{
	104	wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
	105	for(;node!=ourNode; node=sm_cocoaDCStack.GetFirst())
	106	{
	107	wxDC *dc = node->GetData();
	108	wxASSERT(dc);
	109	wxASSERT(dc!=this);
	110	if(!dc->CocoaUnlockFocus())
	111	{
2b030203	112	wxFAIL_MSG(wxT("Unable to unlock focus on higher-level DC!"));
fe8f7943 DE	113	}
	114	sm_cocoaDCStack.DeleteNode(node);
	115	}
	116	wxASSERT(node==ourNode);
	117	wxASSERT(ourNode->GetData() == this);
	118	ourNode->GetData()->CocoaUnlockFocus();
	119	sm_cocoaDCStack.DeleteNode(ourNode);
	120	}
	121	}
	122
	123	bool wxDC::CocoaUnwindStackAndTakeFocus()
	124	{
	125	wxCocoaDCStack::Node *node=sm_cocoaDCStack.GetFirst();
	126	for(;node;node = sm_cocoaDCStack.GetFirst())
	127	{
	128	wxDC *dc = node->GetData();
	129	wxASSERT(dc);
	130	// If we're on the stack, then it's unwound enough and we have focus
	131	if(dc==this)
	132	return true;
	133	// If unable to unlockFocus (e.g. wxPaintDC) stop here
	134	if(!dc->CocoaUnlockFocus())
	135	break;
	136	sm_cocoaDCStack.DeleteNode(node);
	137	}
	138	return CocoaLockFocus();
	139	}
	140
891d0563 DE	141	wxDC::wxDC(void)
891d0563 DE	142	{
fe8f7943 DE	143	m_cocoaFlipped = false;
fe8f7943 DE	144	m_cocoaHeight = 0.0;
5eb5a0ac	145	m_pen = *wxBLACK_PEN;
891d0563 DE	146	}
	147
	148	wxDC::~wxDC(void)
	149	{
	150	}
	151
fe8f7943 DE	152	bool wxDC::CocoaLockFocus()
	153	{
	154	return false;
	155	}
	156
	157	bool wxDC::CocoaUnlockFocus()
	158	{
	159	return false;
	160	}
	161
	162	void wxDC::CocoaApplyTransformations()
	163	{
	164	// This transform flips the graphics since wxDC uses top-left origin
	165	if(!m_cocoaFlipped)
	166	{
	167	// The transform is auto released
	168	NSAffineTransform *transform = [NSAffineTransform transform];
	169	/* x' = 1x + 0y + 0
	170	y' = 0x + -1y + window's height
	171	*/
	172	NSAffineTransformStruct matrix = {
	173	1, 0
	174	, 0, -1
	175	, 0, m_cocoaHeight
	176	};
	177	[transform setTransformStruct: matrix];
	178	// Apply the transform
	179	[transform concat];
	180	}
	181	// TODO: Apply scaling transformation
	182	}
	183
891d0563 DE	184	void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
891d0563 DE	185	{
fe8f7943	186	if(!CocoaTakeFocus()) return;
891d0563	187	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
5eb5a0ac	188	CocoaSetPenForNSBezierPath(m_pen,bezpath);
891d0563	189	[bezpath stroke];
c3b0c2c3 DE	190	[m_brush.GetNSColor() set];
c3b0c2c3 DE	191	[bezpath fill];
891d0563 DE	192	}
	193
	194	void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
	195	{
fe8f7943	196	if(!CocoaTakeFocus()) return;
891d0563 DE	197	NSBezierPath *bezpath = [NSBezierPath bezierPath];
	198	[bezpath moveToPoint:NSMakePoint(x1,y1)];
	199	[bezpath lineToPoint:NSMakePoint(x2,y2)];
c3b0c2c3	200
5eb5a0ac	201	CocoaSetPenForNSBezierPath(m_pen,bezpath);
891d0563 DE	202	[bezpath stroke];
	203	}
	204
	205	void wxDC::DoGetTextExtent(const wxString& text, wxCoord x, wxCoord y, wxCoord descent, wxCoord externalLeading, wxFont *theFont) const
	206	{
7fc77f30	207	wxAutoNSAutoreleasePool pool;
891d0563	208	// FIXME: Cache this so it can be used for DoDrawText
2b030203	209	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, wxT("Text system has not been initialized. BAD PROGRAMMER!"));
891d0563	210	NSAttributedString *attributedString = [[NSAttributedString alloc]
b0c0a393	211	initWithString:wxNSStringWithWxString(text.c_str())];
891d0563 DE	212	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	213	[attributedString release];
	214
	215	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
	216	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
	217	if(x)
dc483f61	218	*x=(int)usedRect.size.width;
891d0563	219	if(y)
dc483f61	220	*y=(int)usedRect.size.height;
891d0563 DE	221	if(descent)
	222	*descent=0;
	223	if(externalLeading)
	224	*externalLeading=0;
	225	}
	226
	227	void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
	228	{
fe8f7943	229	if(!CocoaTakeFocus()) return;
2b030203	230	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, wxT("Text system has not been initialized. BAD PROGRAMMER!"));
891d0563	231	NSAttributedString *attributedString = [[NSAttributedString alloc]
b0c0a393	232	initWithString:wxNSStringWithWxString(text.c_str())];
891d0563 DE	233	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	234	[attributedString release];
	235
c0440c78 DE	236	// Set the color (and later font) attributes
	237	NSColor *fgColor = m_textForegroundColour.GetNSColor();
	238	NSColor *bgColor = m_textBackgroundColour.GetNSColor();
	239	if(!fgColor)
	240	fgColor = [NSColor clearColor];
	241	if(!bgColor)
	242	bgColor = [NSColor clearColor];
	243	NSDictionary *attrDict = [[NSDictionary alloc] initWithObjectsAndKeys:
	244	fgColor, NSForegroundColorAttributeName,
	245	bgColor, NSBackgroundColorAttributeName,
	246	nil];
	247	[sm_cocoaNSTextStorage addAttributes: attrDict range:NSMakeRange(0,[sm_cocoaNSTextStorage length])];
	248	[attrDict release];
	249
891d0563 DE	250	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
891d0563 DE	251	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
13fc3db4 DE	252	// NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
	253	// there is no length or we don't start at zero
	254	if(!glyphRange.length)
	255	return;
2b030203	256	wxASSERT_MSG(glyphRange.location==0,wxT("glyphRange must begin at zero"));
891d0563 DE	257
	258	NSAffineTransform *transform = [NSAffineTransform transform];
	259	[transform translateXBy:x yBy:y];
	260
	261	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	262	/* x' = 1x + 0y + 0
	263	y' = 0x + -1y + window's height
	264	*/
	265	NSAffineTransformStruct matrix = {
	266	1, 0
	267	, 0, -1
	268	, 0, usedRect.size.height
	269	};
	270	[flipTransform setTransformStruct: matrix];
	271
	272	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	273	[context saveGraphicsState];
	274	[transform concat];
	275	[flipTransform concat];
c3b0c2c3	276	#if 0
891d0563	277	// Draw+fill a rectangle so we can see where the shit is supposed to be.
2b030203	278	wxLogDebug(wxT("(%f,%f) (%fx%f)"),usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);
891d0563 DE	279	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
	280	[[NSColor blackColor] set];
	281	[bezpath stroke];
	282	[[NSColor blueColor] set];
	283	[bezpath fill];
c3b0c2c3	284	#endif
891d0563 DE	285
	286	NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
	287	layoutLocation.x = 0.0;
	288	layoutLocation.y *= -1.0;
	289	layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
c0440c78 DE	290	if(m_backgroundMode==wxSOLID)
c0440c78 DE	291	[sm_cocoaNSLayoutManager drawBackgroundForGlyphRange:glyphRange atPoint:NSZeroPoint];
891d0563 DE	292	[sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange atPoint:layoutLocation];
	293
	294	[context restoreGraphicsState];
	295	}
	296
2894667f DE	297	// wxDCBase functions
	298	int wxDCBase::DeviceToLogicalX(int x) const
	299	{
	300	return x;
	301	}
	302
	303	int wxDCBase::DeviceToLogicalY(int y) const
	304	{
	305	return y;
	306	}
	307
276a1256 DE	308	int wxDCBase::DeviceToLogicalXRel(int x) const
	309	{
	310	return x;
	311	}
	312
	313	int wxDCBase::DeviceToLogicalYRel(int y) const
	314	{
	315	return y;
	316	}
	317
2894667f DE	318	int wxDCBase::LogicalToDeviceX(int x) const
	319	{
	320	return x;
	321	}
	322
	323	int wxDCBase::LogicalToDeviceY(int y) const
	324	{
	325	return y;
	326	}
	327
276a1256 DE	328	int wxDCBase::LogicalToDeviceXRel(int x) const
	329	{
	330	return x;
	331	}
	332
	333	int wxDCBase::LogicalToDeviceYRel(int y) const
	334	{
	335	return y;
	336	}
	337
891d0563 DE	338	///////////////////////////////////////////////////////////////////////////
	339	// cut here, the rest is stubs
	340	///////////////////////////////////////////////////////////////////////////
a24aff65 DE	341
	342	//-----------------------------------------------------------------------------
	343	// constants
	344	//-----------------------------------------------------------------------------
	345
	346	#define mm2inches 0.0393700787402
	347	#define inches2mm 25.4
	348	#define mm2twips 56.6929133859
	349	#define twips2mm 0.0176388888889
	350	#define mm2pt 2.83464566929
	351	#define pt2mm 0.352777777778
	352
	353	//-----------------------------------------------------------------------------
	354	// wxDC
	355	//-----------------------------------------------------------------------------
	356
a24aff65 DE	357	void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
	358	{
	359	};
	360
	361	void wxDC::DoDrawPoint( int x, int y )
	362	{
	363	};
	364
	365	void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
	366	{
	367	};
	368
	369	void wxDC::DoDrawLines( int, wxPoint *, int, int )
	370	{
	371	}
	372
a24aff65 DE	373	int wxDC::GetDepth() const
	374	{
	375	return 0;
	376	}
	377
	378	wxSize wxDC::GetPPI() const
	379	{
	380	return wxSize(0,0);
	381	}
	382
	383	bool wxDC::CanGetTextExtent() const
	384	{
	385	return false;
	386	}
	387
a24aff65 DE	388	wxCoord wxDC::GetCharHeight() const
	389	{
	390	return 0;
	391	}
	392
	393	wxCoord wxDC::GetCharWidth() const
	394	{
	395	return 0;
	396	}
	397
	398	bool wxDC::CanDrawBitmap() const
	399	{
1fd17880	400	return true;
a24aff65 DE	401	}
	402
	403	bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
	404	{
	405	return false;
	406	}
	407
	408	void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
	409	{
	410	}
	411
	412	void wxDC::SetPen(const wxPen& pen)
	413	{
5eb5a0ac	414	m_pen = pen;
a24aff65 DE	415	}
	416
	417	void wxDC::SetBrush(const wxBrush& brush)
	418	{
c3b0c2c3	419	m_brush = brush;
a24aff65 DE	420	}
	421
	422	void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
	423	{
	424	}
	425
	426	void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	427	{
	428	}
	429
	430	void wxDC::DestroyClippingRegion()
	431	{
	432	}
	433
	434	void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
	435	{
	436	}
	437
	438	void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
	439	{
	440	}
	441
	442	void wxDC::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)
	443	{
	444	}
	445
a24aff65 DE	446	void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	447	{
	448	}
	449
	450	void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
	451	{
fe8f7943	452	if(!CocoaTakeFocus()) return;
1fd17880 DE	453	if(!bmp.Ok())
	454	return;
	455
	456	#if 0
	457	// Draw a rect so we can see where it's supposed to be
2b030203	458	wxLogDebug(wxT("image at (%d,%d) size %dx%d"),x,y,bmp.GetWidth(),bmp.GetHeight());
1fd17880 DE	459	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,bmp.GetWidth(),bmp.GetHeight())];
	460	[[NSColor blackColor] set];
	461	[bezpath stroke];
	462	[[NSColor blueColor] set];
	463	[bezpath fill];
	464	#endif // 0
	465
	466	NSAffineTransform *transform = [NSAffineTransform transform];
	467	[transform translateXBy:x yBy:y];
	468
	469	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	470	/* x' = 1x + 0y + 0
	471	y' = 0x + -1y + window's height
	472	*/
	473	NSAffineTransformStruct matrix = {
	474	1, 0
	475	, 0, -1
	476	, 0, bmp.GetHeight()
	477	};
	478	[flipTransform setTransformStruct: matrix];
	479
	480	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	481	[context saveGraphicsState];
	482	[transform concat];
	483	[flipTransform concat];
	484
a00daa65 DE	485	NSImage *nsimage = [bmp.GetNSImage(useMask) retain];
a00daa65 DE	486
1fd17880 DE	487	[nsimage drawAtPoint: NSMakePoint(0,0)
1fd17880 DE	488	fromRect: NSMakeRect(0.0,0.0,bmp.GetWidth(),bmp.GetHeight())
a00daa65	489	operation: NSCompositeSourceOver
1fd17880 DE	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