[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"

#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>

IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
wxDC *wxDC::sm_focusedDC = NULL;
WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;

void wxDC::CocoaInitializeTextSystem()
{
    wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized!  BAD PROGRAMMER!");

    sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];

    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;
}

wxDC::wxDC(void)
{
}

wxDC::~wxDC(void)
{
}

void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
    NSGraphicsContext *context = [NSGraphicsContext currentContext];
    [context saveGraphicsState];

    NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
    [m_textForegroundColour.GetNSColor() set];
    [bezpath stroke];
    [m_brush.GetNSColor() set];
    [bezpath fill];

    [context restoreGraphicsState];
}

void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
{
    NSGraphicsContext *context = [NSGraphicsContext currentContext];
    [context saveGraphicsState];

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

    [m_textForegroundColour.GetNSColor() set];
    [bezpath stroke];

    [context restoreGraphicsState];
}

void wxDC::DoGetTextExtent(const wxString& text, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, wxFont *theFont) const
{
// 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)
{
    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];
    // 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];
    // NOTE: That's NSMakePoint, not NSMakePint (working on that though)
    [m_textForegroundColour.GetNSColor() set];
    [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::LogicalToDeviceX(int x) const
{
    return x;
}

int wxDCBase::LogicalToDeviceY(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 false;
}

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)
{
}

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)
{
}

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)
{
    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&)
{
}

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
891d0563 DE	15	#import <AppKit/NSBezierPath.h>
	16	#import <AppKit/NSTextStorage.h>
	17	#import <AppKit/NSLayoutManager.h>
	18	#import <AppKit/NSTextContainer.h>
	19	#import <AppKit/NSGraphicsContext.h>
	20	#import <AppKit/NSAffineTransform.h>
	21	#import <AppKit/NSColor.h>
	22	#import <AppKit/NSTypeSetter.h>
	23
a24aff65	24	IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
891d0563 DE	25	wxDC *wxDC::sm_focusedDC = NULL;
	26	WX_NSTextStorage wxDC::sm_cocoaNSTextStorage = nil;
	27	WX_NSLayoutManager wxDC::sm_cocoaNSLayoutManager = nil;
	28	WX_NSTextContainer wxDC::sm_cocoaNSTextContainer = nil;
	29
	30	void wxDC::CocoaInitializeTextSystem()
	31	{
	32	wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized! BAD PROGRAMMER!");
	33
	34	sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];
	35
	36	sm_cocoaNSLayoutManager = [[NSLayoutManager alloc] init];
	37	[sm_cocoaNSTextStorage addLayoutManager:sm_cocoaNSLayoutManager];
	38	// NSTextStorage retains NSLayoutManager, but so do we
	39	// [sm_cocoaNSLayoutManager release]; [sm_cocoaNSLayoutManager retain];
	40
	41	// NOTE: initWithContainerSize is the designated initializer, but the
	42	// Apple CircleView sample gets away with just calling init, which
	43	// is all we really need for our purposes.
	44	sm_cocoaNSTextContainer = [[NSTextContainer alloc] init];
	45	[sm_cocoaNSLayoutManager addTextContainer:sm_cocoaNSTextContainer];
	46	// NSLayoutManager retains NSTextContainer, but so do we
	47	// [sm_cocoaNSTextContainer release]; [sm_cocoaNSTextContainer retain];
	48	}
	49
	50	void wxDC::CocoaShutdownTextSystem()
	51	{
	52	[sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
	53	[sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
	54	[sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
	55	}
	56
	57	wxDC::wxDC(void)
	58	{
	59	}
	60
	61	wxDC::~wxDC(void)
	62	{
	63	}
	64
	65	void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	66	{
c3b0c2c3 DE	67	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	68	[context saveGraphicsState];
	69
891d0563	70	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
c3b0c2c3	71	[m_textForegroundColour.GetNSColor() set];
891d0563	72	[bezpath stroke];
c3b0c2c3 DE	73	[m_brush.GetNSColor() set];
	74	[bezpath fill];
	75
	76	[context restoreGraphicsState];
891d0563 DE	77	}
	78
	79	void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
	80	{
c3b0c2c3 DE	81	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	82	[context saveGraphicsState];
	83
891d0563 DE	84	NSBezierPath *bezpath = [NSBezierPath bezierPath];
	85	[bezpath moveToPoint:NSMakePoint(x1,y1)];
	86	[bezpath lineToPoint:NSMakePoint(x2,y2)];
c3b0c2c3 DE	87
c3b0c2c3 DE	88	[m_textForegroundColour.GetNSColor() set];
891d0563	89	[bezpath stroke];
c3b0c2c3 DE	90
c3b0c2c3 DE	91	[context restoreGraphicsState];
891d0563 DE	92	}
	93
	94	void wxDC::DoGetTextExtent(const wxString& text, wxCoord x, wxCoord y, wxCoord descent, wxCoord externalLeading, wxFont *theFont) const
	95	{
	96	// FIXME: Cache this so it can be used for DoDrawText
	97	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
	98	NSAttributedString *attributedString = [[NSAttributedString alloc]
	99	initWithString:[NSString stringWithCString:text.c_str()]];
	100	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	101	[attributedString release];
	102
	103	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
	104	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
	105	if(x)
dc483f61	106	*x=(int)usedRect.size.width;
891d0563	107	if(y)
dc483f61	108	*y=(int)usedRect.size.height;
891d0563 DE	109	if(descent)
	110	*descent=0;
	111	if(externalLeading)
	112	*externalLeading=0;
	113	}
	114
	115	void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
	116	{
	117	wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
	118	NSAttributedString *attributedString = [[NSAttributedString alloc]
	119	initWithString:[NSString stringWithCString:text.c_str()]];
	120	[sm_cocoaNSTextStorage setAttributedString:attributedString];
	121	[attributedString release];
	122
	123	NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
	124	NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
13fc3db4 DE	125	// NOTE: We'll crash trying to get the location of glyphAtIndex:0 if
	126	// there is no length or we don't start at zero
	127	if(!glyphRange.length)
	128	return;
	129	wxASSERT_MSG(glyphRange.location==0,"glyphRange must begin at zero");
891d0563 DE	130
	131	NSAffineTransform *transform = [NSAffineTransform transform];
	132	[transform translateXBy:x yBy:y];
	133
	134	NSAffineTransform *flipTransform = [NSAffineTransform transform];
	135	/* x' = 1x + 0y + 0
	136	y' = 0x + -1y + window's height
	137	*/
	138	NSAffineTransformStruct matrix = {
	139	1, 0
	140	, 0, -1
	141	, 0, usedRect.size.height
	142	};
	143	[flipTransform setTransformStruct: matrix];
	144
	145	NSGraphicsContext *context = [NSGraphicsContext currentContext];
	146	[context saveGraphicsState];
	147	[transform concat];
	148	[flipTransform concat];
c3b0c2c3	149	#if 0
891d0563 DE	150	// Draw+fill a rectangle so we can see where the shit is supposed to be.
	151	wxLogDebug("(%f,%f) (%fx%f)",usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);
	152	NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
	153	[[NSColor blackColor] set];
	154	[bezpath stroke];
	155	[[NSColor blueColor] set];
	156	[bezpath fill];
c3b0c2c3	157	#endif
891d0563 DE	158
	159	NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
	160	layoutLocation.x = 0.0;
	161	layoutLocation.y *= -1.0;
	162	layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
	163	// NOTE: That's NSMakePoint, not NSMakePint (working on that though)
c3b0c2c3	164	[m_textForegroundColour.GetNSColor() set];
891d0563 DE	165	[sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange atPoint:layoutLocation];
	166
	167	[context restoreGraphicsState];
	168	}
	169
2894667f DE	170	// wxDCBase functions
	171	int wxDCBase::DeviceToLogicalX(int x) const
	172	{
	173	return x;
	174	}
	175
	176	int wxDCBase::DeviceToLogicalY(int y) const
	177	{
	178	return y;
	179	}
	180
	181	int wxDCBase::LogicalToDeviceX(int x) const
	182	{
	183	return x;
	184	}
	185
	186	int wxDCBase::LogicalToDeviceY(int y) const
	187	{
	188	return y;
	189	}
	190
891d0563 DE	191	///////////////////////////////////////////////////////////////////////////
	192	// cut here, the rest is stubs
	193	///////////////////////////////////////////////////////////////////////////
a24aff65 DE	194
	195	//-----------------------------------------------------------------------------
	196	// constants
	197	//-----------------------------------------------------------------------------
	198
	199	#define mm2inches 0.0393700787402
	200	#define inches2mm 25.4
	201	#define mm2twips 56.6929133859
	202	#define twips2mm 0.0176388888889
	203	#define mm2pt 2.83464566929
	204	#define pt2mm 0.352777777778
	205
	206	//-----------------------------------------------------------------------------
	207	// wxDC
	208	//-----------------------------------------------------------------------------
	209
a24aff65 DE	210	void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
	211	{
	212	};
	213
	214	void wxDC::DoDrawPoint( int x, int y )
	215	{
	216	};
	217
	218	void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
	219	{
	220	};
	221
	222	void wxDC::DoDrawLines( int, wxPoint *, int, int )
	223	{
	224	}
	225
a24aff65 DE	226	int wxDC::GetDepth() const
	227	{
	228	return 0;
	229	}
	230
	231	wxSize wxDC::GetPPI() const
	232	{
	233	return wxSize(0,0);
	234	}
	235
	236	bool wxDC::CanGetTextExtent() const
	237	{
	238	return false;
	239	}
	240
a24aff65 DE	241	wxCoord wxDC::GetCharHeight() const
	242	{
	243	return 0;
	244	}
	245
	246	wxCoord wxDC::GetCharWidth() const
	247	{
	248	return 0;
	249	}
	250
	251	bool wxDC::CanDrawBitmap() const
	252	{
	253	return false;
	254	}
	255
	256	bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
	257	{
	258	return false;
	259	}
	260
	261	void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
	262	{
	263	}
	264
	265	void wxDC::SetPen(const wxPen& pen)
	266	{
	267	}
	268
	269	void wxDC::SetBrush(const wxBrush& brush)
	270	{
c3b0c2c3	271	m_brush = brush;
a24aff65 DE	272	}
	273
	274	void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
	275	{
	276	}
	277
	278	void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	279	{
	280	}
	281
	282	void wxDC::DestroyClippingRegion()
	283	{
	284	}
	285
	286	void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
	287	{
	288	}
	289
	290	void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
	291	{
	292	}
	293
	294	void wxDC::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)
	295	{
	296	}
	297
a24aff65 DE	298	void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
	299	{
	300	}
	301
	302	void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
	303	{
	304	}
	305
	306	bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
	307	{
	308	return false;
	309	}
	310
	311	void wxDC::DoCrossHair(wxCoord x, wxCoord y)
	312	{
	313	}
	314
a24aff65 DE	315
	316	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)
	317	{
	318	return false;
	319	}
	320
	321	void wxDC::DoGetSize( int* width, int* height ) const
	322	{
	323	*width = m_maxX-m_minX;
	324	*height = m_maxY-m_minY;
	325	};
	326
	327	void wxDC::DoGetSizeMM( int* width, int* height ) const
	328	{
	329	int w = 0;
	330	int h = 0;
	331	GetSize( &w, &h );
	332	};
	333
	334	void wxDC::SetTextForeground( const wxColour &col )
	335	{
	336	if (!Ok()) return;
	337	m_textForegroundColour = col;
	338	};
	339
	340	void wxDC::SetTextBackground( const wxColour &col )
	341	{
	342	if (!Ok()) return;
	343	m_textBackgroundColour = col;
	344	};
	345
	346	void wxDC::Clear()
	347	{
	348	}
	349
	350	void wxDC::SetBackground(const wxBrush&)
	351	{
	352	}
	353
	354	void wxDC::SetPalette(const wxPalette&)
	355	{
	356	}
	357
	358	void wxDC::SetLogicalFunction(int)
	359	{
	360	}
	361
	362
	363	void wxDC::SetMapMode( int mode )
	364	{
	365	switch (mode)
	366	{
	367	case wxMM_TWIPS:
	368	break;
	369	case wxMM_POINTS:
	370	break;
	371	case wxMM_METRIC:
	372	break;
	373	case wxMM_LOMETRIC:
	374	break;
	375	default:
	376	case wxMM_TEXT:
	377	SetLogicalScale( 1.0, 1.0 );
	378	break;
379	};
380	if (mode != wxMM_TEXT)
381	{
382	};
383	};
384
385	void wxDC::SetUserScale( double x, double y )
386	{
387	// allow negative ? -> no
388	m_userScaleX = x;
389	m_userScaleY = y;
390	ComputeScaleAndOrigin();
391	};
392
393	void wxDC::SetLogicalScale( double x, double y )
394	{
395	// allow negative ?
396	m_logicalScaleX = x;
397	m_logicalScaleY = y;
398	ComputeScaleAndOrigin();
399	};
400
401	void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
402	{
403	m_logicalOriginX = x * m_signX; // is this still correct ?
404	m_logicalOriginY = y * m_signY;
405	ComputeScaleAndOrigin();
406	};
407
408	void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
409	{
410	ComputeScaleAndOrigin();
411	};
412
413	void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
414	{
415	m_signX = (xLeftRight ? 1 : -1);
416	m_signY = (yBottomUp ? -1 : 1);
417	ComputeScaleAndOrigin();
418	};
419
420	void wxDC::ComputeScaleAndOrigin(void)
421	{
422	// CMB: copy scale to see if it changes
423	double origScaleX = m_scaleX;
424	double origScaleY = m_scaleY;
425
426	m_scaleX = m_logicalScaleX * m_userScaleX;
427	m_scaleY = m_logicalScaleY * m_userScaleY;
428
429	// CMB: if scale has changed call SetPen to recalulate the line width
430	if (m_scaleX != origScaleX \|\| m_scaleY != origScaleY)
431	{
432	// this is a bit artificial, but we need to force wxDC to think
433	// the pen has changed
434	wxPen* pen = & GetPen();
435	wxPen tempPen;
436	m_pen = tempPen;
437	SetPen(* pen);
438	}
439	};
440