1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/cocoa/dc.mm
4 // Author: David Elliott
8 // Copyright: (c) 2003 David Elliott
9 // Licence: wxWindows license
10 /////////////////////////////////////////////////////////////////////////////
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>
24 IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
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;
30 void wxDC::CocoaInitializeTextSystem()
32 wxASSERT_MSG(!sm_cocoaNSTextStorage && !sm_cocoaNSLayoutManager && !sm_cocoaNSTextContainer,"Text system already initalized! BAD PROGRAMMER!");
34 sm_cocoaNSTextStorage = [[NSTextStorage alloc] init];
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];
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];
50 void wxDC::CocoaShutdownTextSystem()
52 [sm_cocoaNSTextContainer release]; sm_cocoaNSTextContainer = nil;
53 [sm_cocoaNSLayoutManager release]; sm_cocoaNSLayoutManager = nil;
54 [sm_cocoaNSTextStorage release]; sm_cocoaNSTextStorage = nil;
65 void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
67 NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(x,y,width,height)];
71 void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
73 NSBezierPath *bezpath = [NSBezierPath bezierPath];
74 [bezpath moveToPoint:NSMakePoint(x1,y1)];
75 [bezpath lineToPoint:NSMakePoint(x2,y2)];
79 void wxDC::DoGetTextExtent(const wxString& text, wxCoord *x, wxCoord *y, wxCoord *descent, wxCoord *externalLeading, wxFont *theFont) const
81 // FIXME: Cache this so it can be used for DoDrawText
82 wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
83 NSAttributedString *attributedString = [[NSAttributedString alloc]
84 initWithString:[NSString stringWithCString:text.c_str()]];
85 [sm_cocoaNSTextStorage setAttributedString:attributedString];
86 [attributedString release];
88 NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
89 NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
91 *x=usedRect.size.width;
93 *y=usedRect.size.height;
100 void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
102 wxASSERT_MSG(sm_cocoaNSTextStorage && sm_cocoaNSLayoutManager && sm_cocoaNSTextContainer, "Text system has not been initialized. BAD PROGRAMMER!");
103 NSAttributedString *attributedString = [[NSAttributedString alloc]
104 initWithString:[NSString stringWithCString:text.c_str()]];
105 [sm_cocoaNSTextStorage setAttributedString:attributedString];
106 [attributedString release];
108 NSRange glyphRange = [sm_cocoaNSLayoutManager glyphRangeForTextContainer:sm_cocoaNSTextContainer];
109 NSRect usedRect = [sm_cocoaNSLayoutManager usedRectForTextContainer:sm_cocoaNSTextContainer];
112 NSAffineTransform *transform = [NSAffineTransform transform];
113 [transform translateXBy:x yBy:y];
115 NSAffineTransform *flipTransform = [NSAffineTransform transform];
117 y' = 0x + -1y + window's height
119 NSAffineTransformStruct matrix = {
122 , 0, usedRect.size.height
124 [flipTransform setTransformStruct: matrix];
126 NSGraphicsContext *context = [NSGraphicsContext currentContext];
127 [context saveGraphicsState];
129 [flipTransform concat];
130 // Draw+fill a rectangle so we can see where the shit is supposed to be.
131 wxLogDebug("(%f,%f) (%fx%f)",usedRect.origin.x,usedRect.origin.y,usedRect.size.width,usedRect.size.height);
132 NSBezierPath *bezpath = [NSBezierPath bezierPathWithRect:NSMakeRect(0,0,usedRect.size.width,usedRect.size.height)];
133 [[NSColor blackColor] set];
135 [[NSColor blueColor] set];
138 NSPoint layoutLocation = [sm_cocoaNSLayoutManager locationForGlyphAtIndex:0];
139 layoutLocation.x = 0.0;
140 layoutLocation.y *= -1.0;
141 layoutLocation.y += [[sm_cocoaNSLayoutManager typesetter] baselineOffsetInLayoutManager:sm_cocoaNSLayoutManager glyphIndex:0];
142 // NOTE: That's NSMakePoint, not NSMakePint (working on that though)
143 [sm_cocoaNSLayoutManager drawGlyphsForGlyphRange:glyphRange atPoint:layoutLocation];
145 [context restoreGraphicsState];
148 ///////////////////////////////////////////////////////////////////////////
149 // cut here, the rest is stubs
150 ///////////////////////////////////////////////////////////////////////////
152 //-----------------------------------------------------------------------------
154 //-----------------------------------------------------------------------------
156 #define mm2inches 0.0393700787402
157 #define inches2mm 25.4
158 #define mm2twips 56.6929133859
159 #define twips2mm 0.0176388888889
160 #define mm2pt 2.83464566929
161 #define pt2mm 0.352777777778
163 //-----------------------------------------------------------------------------
165 //-----------------------------------------------------------------------------
167 void wxDC::DoDrawIcon( const wxIcon &WXUNUSED(icon), int WXUNUSED(x), int WXUNUSED(y) )
171 void wxDC::DoDrawPoint( int x, int y )
175 void wxDC::DoDrawPolygon( int, wxPoint *, int, int, int)
179 void wxDC::DoDrawLines( int, wxPoint *, int, int )
183 int wxDC::GetDepth() const
188 wxSize wxDC::GetPPI() const
193 bool wxDC::CanGetTextExtent() const
198 wxCoord wxDC::GetCharHeight() const
203 wxCoord wxDC::GetCharWidth() const
208 bool wxDC::CanDrawBitmap() const
213 bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
218 void wxDC::DoDrawArc(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
222 void wxDC::SetPen(const wxPen& pen)
226 void wxDC::SetBrush(const wxBrush& brush)
230 void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
234 void wxDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
238 void wxDC::DestroyClippingRegion()
242 void wxDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
246 void wxDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
250 void wxDC::DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, double sa, double ea)
254 void wxDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
258 void wxDC::DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask)
262 bool wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
267 void wxDC::DoCrossHair(wxCoord x, wxCoord y)
272 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)
277 void wxDC::DoGetSize( int* width, int* height ) const
279 *width = m_maxX-m_minX;
280 *height = m_maxY-m_minY;
283 void wxDC::DoGetSizeMM( int* width, int* height ) const
290 void wxDC::SetTextForeground( const wxColour &col )
293 m_textForegroundColour = col;
296 void wxDC::SetTextBackground( const wxColour &col )
299 m_textBackgroundColour = col;
306 void wxDC::SetBackground(const wxBrush&)
310 void wxDC::SetPalette(const wxPalette&)
314 void wxDC::SetLogicalFunction(int)
319 void wxDC::SetMapMode( int mode )
333 SetLogicalScale( 1.0, 1.0 );
336 if (mode != wxMM_TEXT)
341 void wxDC::SetUserScale( double x, double y )
343 // allow negative ? -> no
346 ComputeScaleAndOrigin();
349 void wxDC::SetLogicalScale( double x, double y )
354 ComputeScaleAndOrigin();
357 void wxDC::SetLogicalOrigin( wxCoord x, wxCoord y )
359 m_logicalOriginX = x * m_signX; // is this still correct ?
360 m_logicalOriginY = y * m_signY;
361 ComputeScaleAndOrigin();
364 void wxDC::SetDeviceOrigin( wxCoord x, wxCoord y )
366 ComputeScaleAndOrigin();
369 void wxDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
371 m_signX = (xLeftRight ? 1 : -1);
372 m_signY = (yBottomUp ? -1 : 1);
373 ComputeScaleAndOrigin();
376 void wxDC::ComputeScaleAndOrigin(void)
378 // CMB: copy scale to see if it changes
379 double origScaleX = m_scaleX;
380 double origScaleY = m_scaleY;
382 m_scaleX = m_logicalScaleX * m_userScaleX;
383 m_scaleY = m_logicalScaleY * m_userScaleY;
385 // CMB: if scale has changed call SetPen to recalulate the line width
386 if (m_scaleX != origScaleX || m_scaleY != origScaleY)
388 // this is a bit artificial, but we need to force wxDC to think
389 // the pen has changed
390 wxPen* pen = & GetPen();
397 int wxDCBase::DeviceToLogicalX(int x) const
402 int wxDCBase::DeviceToLogicalY(int y) const